From 7a3e0e0586b6baf5198caae1e978a4e35f47c35e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 6 Aug 2014 08:58:48 -0700
Subject: [PATCH 001/260] fix: buffer implementation for accumulation

---
 .../android/rxjava/BufferDemoFragment.java    | 69 ++++++++++++-------
 1 file changed, 44 insertions(+), 25 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index 55bfd879..a1f43ac6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -10,6 +10,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
+import android.widget.Button;
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.app.R;
@@ -20,59 +21,70 @@
 
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
+import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
+/**
+ * credit to @tomrozb for this implementation:
+ * http://stackoverflow.com/questions/24922610/incorrect-understanding-of-buffer-in-rxjava
+ *
+ * An alternate mechanism of achieving the same result would be to use a {@link rx.subjects.PublishSubject}
+ * as demonstrated in the case of {@link com.morihacky.android.rxjava.SubjectDebounceSearchEmitterFragment}
+ */
 public class BufferDemoFragment
     extends Fragment {
 
     @InjectView(R.id.list_threading_log) ListView _logsList;
+    @InjectView(R.id.btn_start_operation) Button _tapBtn;
 
     private LogAdapter _adapter;
     private List<String> _logs;
     private int _tapCount = 0;
 
-    private Observable<List<Integer>> _bufferedObservable;
-    private Observer<List<Integer>> _observer;
+    private Subscription _subscription;
 
     @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-
-        _bufferedObservable = _getBufferedObservable();
-        _observer = _getObserver();
+    public void onResume() {
+        super.onResume();
+        _subscription = _getBufferedObservable().subscribe(_getObserver());
     }
 
-
-    @OnClick(R.id.btn_start_operation)
-    public void onButtonTapped() {
-        Timber.d("--------- GOT A TAP");
-        _tapCount += 1;
-        _log("GOT A TAP");
-        _bufferedObservable.subscribeOn(Schedulers.io())
-                         .observeOn(AndroidSchedulers.mainThread())
-                         .subscribe(_observer);
+    @Override
+    public void onPause() {
+        super.onPause();
+        _subscription.unsubscribe();
     }
 
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
     private Observable<List<Integer>> _getBufferedObservable() {
+
         return Observable.create(new Observable.OnSubscribe<Integer>() {
 
 
             @Override
             public void call(Subscriber<? super Integer> subscriber) {
-                subscriber.onNext(1);
-            }
+                _tapBtn.setOnClickListener(new View.OnClickListener() {
 
-        }).buffer(2, TimeUnit.SECONDS);
+
+                    @Override
+                    public void onClick(View v) {
+                        Timber.d("--------- GOT A TAP");
+                        _tapCount += 1;
+                        _log("GOT A TAP");
+                    }
+                });
+            }
+        })
+                         .buffer(2, TimeUnit.SECONDS)
+                         .subscribeOn(Schedulers.io())
+                         .observeOn(AndroidSchedulers.mainThread());
     }
 
     private Observer<List<Integer>> _getObserver() {
@@ -81,8 +93,10 @@ private Observer<List<Integer>> _getObserver() {
 
             @Override
             public void onCompleted() {
-                _log(String.format("%d taps", _tapCount));
-                _tapCount = 0;
+                if (_tapCount > 0) {
+                    _log(String.format("%d taps", _tapCount));
+                    _tapCount = 0;
+                }
             }
 
             @Override
@@ -94,15 +108,14 @@ public void onError(Throwable e) {
             @Override
             public void onNext(List<Integer> integers) {
                 Timber.d("--------- onNext");
-
                 if (integers.size() > 0) {
                     for (int i : integers) {
                         _tapCount += i;
                     }
-                    onCompleted();
                 } else {
                     Timber.d("--------- No taps received ");
                 }
+                onCompleted();
             }
         };
     }
@@ -110,6 +123,12 @@ public void onNext(List<Integer> integers) {
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,

From 9159200f2caada86afc3a94918aa35eb905f9a83 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 6 Aug 2014 08:59:01 -0700
Subject: [PATCH 002/260] fix: layout equal buttons

---
 app/src/main/res/layout/fragment_main.xml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 3ad346a4..c4e63087 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -13,19 +13,19 @@
     <Button
         android:id="@+id/btn_demo_schedulers"
         android:layout_height="wrap_content"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:text="@string/btn_demo_schedulers"/>
 
     <Button
         android:id="@+id/btn_demo_buffer"
         android:layout_height="wrap_content"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:text="@string/btn_demo_buffer"/>
 
     <Button
         android:id="@+id/btn_demo_subject_debounce"
         android:layout_height="wrap_content"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:text="@string/btn_demo_subject_debounce"/>
 
 </LinearLayout>

From b2b51f00cb880d207b488b01670db2253aa925b1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 6 Aug 2014 15:31:44 -0700
Subject: [PATCH 003/260] feat: add another usecase where RxJava kicks butt

---
 README.md | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 030bc3fd..7e39cc2b 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ The long operation is simulated by a blocking Thread.sleep call. But since it's
 To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background
 
 
-### 2. Accumulate calls using buffer (wip)
+### 2. Accumulate calls using buffer
 
 This is a demo of how events can be accumulated using the "buffer" operation.
 
@@ -24,16 +24,29 @@ A button is provided and we accumulate the number of clicks on that button, over
 
 If you hit the button once. you'll get message saying the button was hit once. If you hit it 5 times continuosly within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying Button hit once).
 
+Two implementations:
+
+2a. Using a traditional observable - but encompassing the OnClick within the observable
+2b. Using PublishSubject and sending single clicks to the Observable, which inturn then sends it to the Observer
+
+
 ### 3. Instant/Auto searching (using a subject and debounce)
 
 This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
 As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.
 
-### 4. Working examples of github from JakeWharton's Retrofit preso at Netflix (wip)
 
-https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
-https://speakerdeck.com/jakewharton/2014-1
+### 4. Orchestrating Observables  (flatmap + zip) (wip)
+
+If actions A and B depend on action X running; and action C depends on action Y running. What if you want to combine the result of all those calls and have a single output?
+
+                     ____________ A  ________________
+       (flatmap)    /                                |   (zip)
+    X  ------------/_____________ B  ________________| ----------- > Ouput
+                                                     |
+    Y  -------------------------  C  ________________|
+
 
 
 ### 5. Pagination (zip) (wip)
@@ -41,6 +54,13 @@ https://speakerdeck.com/jakewharton/2014-1
 a. Simple pagination
 b. Optimized pagination
 
-### 6. Replacing your event Bus (wip)
+
+### 6. Working examples of github from JakeWharton's Retrofit preso at Netflix (wip)
+
+https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
+https://speakerdeck.com/jakewharton/2014-1
+
+
+### 7. Replacing your event Bus (wip)
 
 http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android

From 7ebe755b3167afb3b7dafea278ef2b89dd0c4293 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 9 Aug 2014 15:34:29 -0700
Subject: [PATCH 004/260] feat: (wip) add timeout feature

---
 .../android/rxjava/DemoTimeoutFragment.java   | 199 ++++++++++++++++++
 .../android/rxjava/MainFragment.java          |  10 +
 app/src/main/res/layout/fragment_main.xml     |  60 +++---
 .../res/layout/fragment_subject_timeout.xml   |  40 ++++
 app/src/main/res/values/strings.xml           |   2 +
 5 files changed, 287 insertions(+), 24 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
 create mode 100644 app/src/main/res/layout/fragment_subject_timeout.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
new file mode 100644
index 00000000..10468edb
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
@@ -0,0 +1,199 @@
+package com.morihacky.android.rxjava;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import com.morihacky.android.rxjava.app.R;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import rx.Observable;
+import rx.Observer;
+import rx.Subscriber;
+import rx.Subscription;
+import rx.android.observables.AndroidObservable;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.schedulers.Schedulers;
+import timber.log.Timber;
+
+
+public class DemoTimeoutFragment
+    extends Fragment {
+
+    @InjectView(R.id.list_threading_log) ListView _logsList;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    private Subscription _subscription;
+
+    @OnClick(R.id.btn_demo_timeout_1_2s)
+    public void onStart2sTask() {
+        _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this,
+                                                       _getObservableTask_2sToComplete())
+                                         .observeOn(AndroidSchedulers.mainThread())
+                                         .subscribe(_getEventCompletionObserver());
+    }
+
+    @OnClick(R.id.btn_demo_timeout_1_5s)
+    public void onStart5sTask() {
+        _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this, _getObservableFor5sTask())
+                                         .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
+                                         .subscribeOn(Schedulers.computation())
+                                         .observeOn(AndroidSchedulers.mainThread())
+                                         .subscribe(_getEventCompletionObserver());
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Main Rx entities
+
+    private Observable<String> _getObservableFor5sTask() {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                _log(String.format("Starting a 5s task"));
+                subscriber.onNext("5 s");
+                try {
+                    Thread.sleep(1200);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                subscriber.onCompleted();
+            }
+        });
+    }
+
+    private Observable<String> _getObservableTask_2sToComplete() {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                _log(String.format("Starting a 2s task"));
+                subscriber.onNext("2 s");
+                try {
+                    Thread.sleep(2000);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                subscriber.onCompleted();
+            }
+        }).subscribeOn(Schedulers.computation()).timeout(3, TimeUnit.SECONDS);
+    }
+
+    private Observable<? extends String> _getTimeoutObservable() {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                _log("Timing out this task ...");
+                subscriber.onCompleted();
+            }
+        });
+    }
+
+    private Observer<String> _getEventCompletionObserver() {
+        return new Observer<String>() {
+
+
+            @Override
+            public void onCompleted() {
+                _log(String.format("task was completed"));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                _log(String.format("Dang a task timeout"));
+                onCompleted();
+                Timber.e(e, "Timeout Demo exception");
+            }
+
+            @Override
+            public void onNext(String taskType) {
+                _log(String.format("onNext %s task", taskType));
+            }
+        };
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _subscription.unsubscribe();
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    private void _setupLogger() {
+        _logs = new ArrayList<String>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
+
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
+        }
+    }
+
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
+
+    private class LogAdapter
+        extends ArrayAdapter<String> {
+
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 402a07da..ae2cbf5f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -57,4 +57,14 @@ public void demoThrottling() {
                      .commit();
     }
 
+    @OnClick(R.id.btn_demo_subject_timeout)
+    public void demoTimeout() {
+        getActivity().getSupportFragmentManager()
+                     .beginTransaction()
+                     .addToBackStack(this.toString())
+                     .replace(R.id.activity_main,
+                              new DemoTimeoutFragment(),
+                              this.toString())
+                     .commit();
+    }
 }
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index c4e63087..7d5817ff 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -1,31 +1,43 @@
-<LinearLayout
-    android:orientation="vertical"
+<ScrollView
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    android:paddingTop="@dimen/activity_vertical_margin"
-    android:paddingBottom="@dimen/activity_vertical_margin"
-    android:paddingLeft="@dimen/activity_horizontal_margin"
-    android:paddingRight="@dimen/activity_horizontal_margin"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:context=".DemoActivity">
+    xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <Button
-        android:id="@+id/btn_demo_schedulers"
-        android:layout_height="wrap_content"
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_height="match_parent"
         android:layout_width="match_parent"
-        android:text="@string/btn_demo_schedulers"/>
+        android:paddingTop="@dimen/activity_vertical_margin"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        android:paddingLeft="@dimen/activity_horizontal_margin"
+        android:paddingRight="@dimen/activity_horizontal_margin"
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        tools:context=".DemoActivity">
 
-    <Button
-        android:id="@+id/btn_demo_buffer"
-        android:layout_height="wrap_content"
-        android:layout_width="match_parent"
-        android:text="@string/btn_demo_buffer"/>
+        <Button
+            android:id="@+id/btn_demo_schedulers"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_schedulers"/>
 
-    <Button
-        android:id="@+id/btn_demo_subject_debounce"
-        android:layout_height="wrap_content"
-        android:layout_width="match_parent"
-        android:text="@string/btn_demo_subject_debounce"/>
+        <Button
+            android:id="@+id/btn_demo_buffer"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_buffer"/>
+
+        <Button
+            android:id="@+id/btn_demo_subject_debounce"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_subject_debounce"/>
+
+        <Button
+            android:id="@+id/btn_demo_subject_timeout"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_timeout"/>
+    </LinearLayout>
 
-</LinearLayout>
+</ScrollView>
diff --git a/app/src/main/res/layout/fragment_subject_timeout.xml b/app/src/main/res/layout/fragment_subject_timeout.xml
new file mode 100644
index 00000000..1a4e9cf8
--- /dev/null
+++ b/app/src/main/res/layout/fragment_subject_timeout.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_timeout"/>
+
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent">
+
+        <Button
+            android:id="@+id/btn_demo_timeout_1_2s"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:text="Button 1"/>
+
+        <Button
+            android:id="@+id/btn_demo_timeout_1_5s"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:text="Button 2"/>
+
+    </LinearLayout>
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 64d83384..1975a48f 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -8,9 +8,11 @@
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
     <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
+    <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
 
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
     <string name="btn_demo_subject_debounce">search text listener(subject debouncing)</string>
+    <string name="btn_demo_timeout">delayed jobs (timeout)</string>
 
 </resources>

From 52bc3bee378e6a0425412b870a7ec41a28f65b28 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 9 Aug 2014 23:41:21 -0700
Subject: [PATCH 005/260] feat: add internet permission

---
 app/src/main/AndroidManifest.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index dfddcbe4..f0b3253e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -17,5 +17,6 @@
             </intent-filter>
         </activity>
     </application>
+    <uses-permission android:name="android.permission.INTERNET" />
 
 </manifest>

From f0a73ece56c85fa404232b082e9e19c4a0de0439 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:06:14 -0700
Subject: [PATCH 006/260] fix: long operation fails on orientation changes in
 concurrency demo #2

---
 .../rxjava/ConcurrencyWithSchedulersDemoFragment.java       | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 2e4ef885..9ea17169 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -107,7 +107,9 @@ public void onNext(Boolean aBoolean) {
     @Override
     public void onDestroy() {
         super.onDestroy();
-        _subscription.unsubscribe();
+        if (_subscription != null) {
+          _subscription.unsubscribe();
+        }
     }
 
     private void _log(String logMsg) {
@@ -142,7 +144,7 @@ private void _doSomeLongOperation_thatBlocksCurrentThread() {
         try {
             Thread.sleep(3000);
         } catch (InterruptedException e) {
-            e.printStackTrace();
+          Timber.d("Operation was interrupted");
         }
     }
 

From 804f1570304822c91aaedfc807304d12cb0e6783 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:07:18 -0700
Subject: [PATCH 007/260] chore: updated upcoming examples

---
 README.md | 52 +++++++++++++++++++++++++++++++++-------------------
 1 file changed, 33 insertions(+), 19 deletions(-)

diff --git a/README.md b/README.md
index 7e39cc2b..52e9f11c 100644
--- a/README.md
+++ b/README.md
@@ -3,64 +3,78 @@ Learning RxJava for Android by example
 
 I've read and watched a lot on Rx. Most examples either use the J8 lambda notations/Scala/Groovy or some other awesome language that us Android developers are constantly envious of.
 
-Unfortunately i could never find real-world simple examples in Android, that could show me how to use RxJava in Android. This repo is a solution to that problem. Below are a list of examples with a little more deatils on the approach:
+Unfortunately i could never find real-world simple examples in Android, that could show me how to use RxJava in Android. This repo is a solution to that problem. Below are a list of examples with a little more details on the approach:
 
 ## Examples:
 
 ### 1. Concurrency using schedulers
 
-A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread), and feed the results onc ompletion, back into the UI/main thread. This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava!
+A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread), and feed the results back to the UI/main thread, on completion. This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this is as a replacement for AsyncTasks.
 
 The long operation is simulated by a blocking Thread.sleep call. But since it's in a background thread, our UI is never interrupted.
 
-To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background
+To really see this example shine. Hit the button multiple times and see how the button click (which is a ui operation) is never blocked because the long operation only runs in the background.
 
+### 1. Retrofit and RxJava (zip, flatmap) (wip)
 
-### 2. Accumulate calls using buffer
+Working examples of github from JakeWharton's Retrofit preso at Netflix
+https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
+https://speakerdeck.com/jakewharton/2014-1
+
+### 1. simpler operations: map/collect (wip)
+
+We have a list of three twitter handles. We wish to get the 3 latest tweets from each of these people, and print them out on our screen.
+
+### 1. First retrieve from cached data, then make a network call if you can't find your data (concat) (wip)
+
+[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
+
+### 1. Make two parallel network calls, then combine the result into a single data point (zip) (wip)
+
+[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
+http://www.programmableweb.com/category/all/apis?order=field_popularity
+
+
+### 1. Accumulate calls (buffer)
 
 This is a demo of how events can be accumulated using the "buffer" operation.
 
 A button is provided and we accumulate the number of clicks on that button, over a span of time and then spit out the final results.
 
-If you hit the button once. you'll get message saying the button was hit once. If you hit it 5 times continuosly within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying Button hit once).
+If you hit the button once. you'll get message saying the button was hit once. If you hit it 5 times continuosly within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying "Button hit once").
 
 Two implementations:
 
 2a. Using a traditional observable - but encompassing the OnClick within the observable
-2b. Using PublishSubject and sending single clicks to the Observable, which inturn then sends it to the Observer
+2b. Using PublishSubject and sending single clicks to the Observable, which in-turn then sends it to the Observer
 
-
-### 3. Instant/Auto searching (using a subject and debounce)
+### 1. Instant/Auto searching (subject + debounce)
 
 This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
-As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.
+As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that.
 
+This is the debounce/throttleWithTimeout method in RxJava.
 
-### 4. Orchestrating Observables  (flatmap + zip) (wip)
+### 1. Orchestrating Observables  (flatmap + zip) (wip)
 
 If actions A and B depend on action X running; and action C depends on action Y running. What if you want to combine the result of all those calls and have a single output?
 
                      ____________ A  ________________
-       (flatmap)    /                                |   (zip)
+       (flatmap)    /                                |   (zip all 3)
     X  ------------/_____________ B  ________________| ----------- > Ouput
                                                      |
     Y  -------------------------  C  ________________|
 
 
 
-### 5. Pagination (zip) (wip)
+### 1. Pagination (zip) (wip)
 
 a. Simple pagination
 b. Optimized pagination
 
 
-### 6. Working examples of github from JakeWharton's Retrofit preso at Netflix (wip)
-
-https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
-https://speakerdeck.com/jakewharton/2014-1
-
 
-### 7. Replacing your event Bus (wip)
+### 1. Replacing your event Bus (wip)
 
-http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
+http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
\ No newline at end of file

From 118c33002119bd04ce27e1972892e31b98a1dfd8 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:16:44 -0700
Subject: [PATCH 008/260] chore: cleanup readme

---
 README.md | 55 +++++++++++++++++++++++++------------------------------
 1 file changed, 25 insertions(+), 30 deletions(-)

diff --git a/README.md b/README.md
index 52e9f11c..2c2f0ebd 100644
--- a/README.md
+++ b/README.md
@@ -3,39 +3,27 @@ Learning RxJava for Android by example
 
 I've read and watched a lot on Rx. Most examples either use the J8 lambda notations/Scala/Groovy or some other awesome language that us Android developers are constantly envious of.
 
-Unfortunately i could never find real-world simple examples in Android, that could show me how to use RxJava in Android. This repo is a solution to that problem. Below are a list of examples with a little more details on the approach:
+Unfortunately i could never find real-world simple examples in Android, that could show me how to use RxJava in Android. This repo is a solution to that problem.
 
 ## Examples:
 
-### 1. Concurrency using schedulers
+### Concurrency using schedulers
 
-A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread), and feed the results back to the UI/main thread, on completion. This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this is as a replacement for AsyncTasks.
+A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread), and feed the results back to the UI/main thread, on completion. This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
-The long operation is simulated by a blocking Thread.sleep call. But since it's in a background thread, our UI is never interrupted.
+The long operation is simulated by a blocking Thread.sleep call (since this is done in a background thread, our UI is never interrupted).
 
 To really see this example shine. Hit the button multiple times and see how the button click (which is a ui operation) is never blocked because the long operation only runs in the background.
 
-### 1. Retrofit and RxJava (zip, flatmap) (wip)
+### Instant/Auto searching (subject + debounce)
 
-Working examples of github from JakeWharton's Retrofit preso at Netflix
-https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
-https://speakerdeck.com/jakewharton/2014-1
-
-### 1. simpler operations: map/collect (wip)
-
-We have a list of three twitter handles. We wish to get the 3 latest tweets from each of these people, and print them out on our screen.
-
-### 1. First retrieve from cached data, then make a network call if you can't find your data (concat) (wip)
-
-[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
-
-### 1. Make two parallel network calls, then combine the result into a single data point (zip) (wip)
+This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
-[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
-http://www.programmableweb.com/category/all/apis?order=field_popularity
+As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that.
 
+This is the debounce/throttleWithTimeout method in RxJava.
 
-### 1. Accumulate calls (buffer)
+### Accumulate calls (buffer)
 
 This is a demo of how events can be accumulated using the "buffer" operation.
 
@@ -48,15 +36,24 @@ Two implementations:
 2a. Using a traditional observable - but encompassing the OnClick within the observable
 2b. Using PublishSubject and sending single clicks to the Observable, which in-turn then sends it to the Observer
 
-### 1. Instant/Auto searching (subject + debounce)
+## Work in Progress:
 
-This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
+### Retrofit and RxJava (zip, flatmap) (wip)
 
-As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that.
+Working examples of github from JakeWharton's Retrofit preso at Netflix
+https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
+https://speakerdeck.com/jakewharton/2014-1
 
-This is the debounce/throttleWithTimeout method in RxJava.
+### First retrieve from cached data, then make a network call if you can't find your data (concat) (wip)
+
+[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
+
+### Make two parallel network calls, then combine the result into a single data point (zip) (wip)
 
-### 1. Orchestrating Observables  (flatmap + zip) (wip)
+[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
+http://www.programmableweb.com/category/all/apis?order=field_popularity
+
+### Orchestrating Observables  (flatmap + zip) (wip)
 
 If actions A and B depend on action X running; and action C depends on action Y running. What if you want to combine the result of all those calls and have a single output?
 
@@ -66,15 +63,13 @@ If actions A and B depend on action X running; and action C depends on action Y
                                                      |
     Y  -------------------------  C  ________________|
 
-
-
-### 1. Pagination (zip) (wip)
+### Pagination (zip) (wip)
 
 a. Simple pagination
 b. Optimized pagination
 
 
 
-### 1. Replacing your event Bus (wip)
+### Replacing your event Bus (wip)
 
 http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
\ No newline at end of file

From 6e8c367b5658d838ffbce93727ee63f2c40f57f3 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:19:19 -0700
Subject: [PATCH 009/260] chore: gitignore updates

---
 .gitignore | 47 +++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 43 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 0f885ac8..8aebcd57 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,44 @@
-.gradle
-/local.properties
-/.idea/workspace.xml
+# built application files
+*.ap_
+
+# files for the dex VM
+*.dex
+
+# Java class files
+*.class
+
+# generated files
+bin/
+gen/
+lint.xml
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Eclipse project files
+.classpath
+.project
+.settings
+.checkstyle
+
+# Mac-specific stuff
 .DS_Store
-/build
+
+#Maven
+target
+release.properties
+pom.xml.*
+
+#Ant
+build.xml
+ant.properties
+local.properties
+
+# Gradle
+.gradle
+
+# Intellij project files
+.idea
+.idea/workspace.xml
+gen-external-apklibs/
\ No newline at end of file

From 23f0720bc4bc6f1d136e0cb43a6c5fe70ca2fe92 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:19:51 -0700
Subject: [PATCH 010/260] chore:upgrade okhttp to 2

---
 app/build.gradle | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index fba2bd6e..397b08f5 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,9 +8,10 @@ dependencies {
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.2.2'
     compile 'com.netflix.rxjava:rxjava-android:0.17.+'
-    compile 'com.squareup.okhttp:okhttp:1.6.+'
-    compile 'com.squareup.okhttp:okhttp-urlconnection:1.6.+'
-    compile 'com.squareup.retrofit:retrofit:1.5.+'
+
+    compile 'com.squareup.retrofit:retrofit:1.6.+'
+    compile 'com.squareup.okhttp:okhttp:2.0.+'
+    compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.+'
 
 }
 

From 77ad5083327fd0d1a0d56bce34b80d0bbb05eb3a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:20:50 -0700
Subject: [PATCH 011/260] fix: wip use throttlefirst and timeout for simulating
 timeout operation

---
 .../android/rxjava/SubjectDebounceSearchEmitterFragment.java  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index a81d80ba..d4ccd0cf 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -68,7 +68,9 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         _searchTextEmitterSubject = PublishSubject.create();
         _subscription = AndroidObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
                                                        Observable.switchOnNext(_searchTextEmitterSubject))
-                                         .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
+//                                         .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
+                                         .throttleFirst(400, TimeUnit.MILLISECONDS, Schedulers.io())
+                                         .timeout(400, TimeUnit.MILLISECONDS, Schedulers.io())
                                          .observeOn(AndroidSchedulers.mainThread())
                                          .subscribe(_getSearchObserver());
     }

From 716e3084cc0a52ba8d082a5dad0e3e3b981458e1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 08:26:13 -0700
Subject: [PATCH 012/260] chore: reformat code to standard codestyle

---
 .../android/rxjava/BufferDemoFragment.java    | 267 +++++++--------
 ...ConcurrencyWithSchedulersDemoFragment.java | 267 +++++++--------
 .../android/rxjava/DemoTimeoutFragment.java   | 317 +++++++++---------
 .../android/rxjava/MainActivity.java          |  23 +-
 .../android/rxjava/MainFragment.java          | 100 +++---
 .../android/rxjava/RetrofitFragment.java      |  78 +++++
 .../SubjectDebounceSearchEmitterFragment.java | 259 +++++++-------
 7 files changed, 670 insertions(+), 641 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index a1f43ac6..fe8c0ac0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -12,15 +12,12 @@
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
 import com.morihacky.android.rxjava.app.R;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
@@ -39,144 +36,138 @@
 public class BufferDemoFragment
     extends Fragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-    @InjectView(R.id.btn_start_operation) Button _tapBtn;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-    private int _tapCount = 0;
-
-    private Subscription _subscription;
-
-    @Override
-    public void onResume() {
-        super.onResume();
-        _subscription = _getBufferedObservable().subscribe(_getObserver());
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        _subscription.unsubscribe();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    private Observable<List<Integer>> _getBufferedObservable() {
-
-        return Observable.create(new Observable.OnSubscribe<Integer>() {
-
-
-            @Override
-            public void call(Subscriber<? super Integer> subscriber) {
-                _tapBtn.setOnClickListener(new View.OnClickListener() {
-
-
-                    @Override
-                    public void onClick(View v) {
-                        Timber.d("--------- GOT A TAP");
-                        _tapCount += 1;
-                        _log("GOT A TAP");
-                    }
-                });
-            }
-        })
-                         .buffer(2, TimeUnit.SECONDS)
-                         .subscribeOn(Schedulers.io())
-                         .observeOn(AndroidSchedulers.mainThread());
-    }
-
-    private Observer<List<Integer>> _getObserver() {
-        return new Observer<List<Integer>>() {
-
-
-            @Override
-            public void onCompleted() {
-                if (_tapCount > 0) {
-                    _log(String.format("%d taps", _tapCount));
-                    _tapCount = 0;
-                }
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "--------- Woops on error!");
-                _log(String.format("Dang error. check your logs"));
-            }
-
-            @Override
-            public void onNext(List<Integer> integers) {
-                Timber.d("--------- onNext");
-                if (integers.size() > 0) {
-                    for (int i : integers) {
-                        _tapCount += i;
-                    }
-                } else {
-                    Timber.d("--------- No taps received ");
-                }
-                onCompleted();
-            }
-        };
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
-        ButterKnife.inject(this, layout);
-        return layout;
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<String>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-
+  @InjectView(R.id.list_threading_log) ListView _logsList;
+  @InjectView(R.id.btn_start_operation) Button _tapBtn;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+  private int _tapCount = 0;
+
+  private Subscription _subscription;
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    _subscription = _getBufferedObservable().subscribe(_getObserver());
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    _subscription.unsubscribe();
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Main Rx entities
+
+  private Observable<List<Integer>> _getBufferedObservable() {
+
+    return Observable.create(new Observable.OnSubscribe<Integer>() {
+
+      @Override
+      public void call(Subscriber<? super Integer> subscriber) {
+        _tapBtn.setOnClickListener(new View.OnClickListener() {
+
+          @Override
+          public void onClick(View v) {
+            Timber.d("--------- GOT A TAP");
+            _tapCount += 1;
+            _log("GOT A TAP");
+          }
+        });
+      }
+    })
+        .buffer(2, TimeUnit.SECONDS)
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread());
+  }
+
+  private Observer<List<Integer>> _getObserver() {
+    return new Observer<List<Integer>>() {
+
+      @Override
+      public void onCompleted() {
+        if (_tapCount > 0) {
+          _log(String.format("%d taps", _tapCount));
+          _tapCount = 0;
+        }
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        Timber.e(e, "--------- Woops on error!");
+        _log(String.format("Dang error. check your logs"));
+      }
+
+      @Override
+      public void onNext(List<Integer> integers) {
+        Timber.d("--------- onNext");
+        if (integers.size() > 0) {
+          for (int i : integers) {
+            _tapCount += i;
+          }
         } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
-            });
+          Timber.d("--------- No taps received ");
         }
+        onCompleted();
+      }
+    };
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Methods that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<String>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+        @Override
+        public void run() {
+          _adapter.clear();
+          _adapter.addAll(_logs);
+        }
+      });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
-
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-        extends ArrayAdapter<String> {
+  private class LogAdapter
+      extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 9ea17169..03611474 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -12,15 +12,12 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
-
-import com.morihacky.android.rxjava.app.R;
-
-import java.util.ArrayList;
-import java.util.List;
-
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.app.R;
+import java.util.ArrayList;
+import java.util.List;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
@@ -33,151 +30,143 @@
 public class ConcurrencyWithSchedulersDemoFragment
     extends Fragment {
 
+  @InjectView(R.id.progress_operation_running) ProgressBar _progress;
+  @InjectView(R.id.list_threading_log) ListView _logsList;
 
-    @InjectView(R.id.progress_operation_running) ProgressBar _progress;
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-    private Subscription _subscription;
+  private LogAdapter _adapter;
+  private List<String> _logs;
+  private Subscription _subscription;
 
-    @OnClick(R.id.btn_start_operation)
-    public void startLongOperation() {
-
-        _progress.setVisibility(View.VISIBLE);
-        _log("Button Clicked");
-
-        _subscription = AndroidObservable.bindFragment(this, _getObservable())      // Observable
-                            .subscribeOn(Schedulers.io())
-                            .observeOn(AndroidSchedulers.mainThread())
-                            .subscribe(_getObserver());                             // Observer
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    if (_subscription != null) {
+      _subscription.unsubscribe();
     }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    private Observable<Boolean> _getObservable() {
-        return Observable.create(new Observable.OnSubscribe<Boolean>() {
-
-
-            @Override
-            public void call(Subscriber<? super Boolean> observer) {
-
-                _log("Within Observable");
-
-                _doSomeLongOperation_thatBlocksCurrentThread();
-                observer.onNext(true);
-                observer.onCompleted();
-            }
-        });
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_start_operation)
+  public void startLongOperation() {
+
+    _progress.setVisibility(View.VISIBLE);
+    _log("Button Clicked");
+
+    _subscription = AndroidObservable.bindFragment(this, _getObservable())      // Observable
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_getObserver());                             // Observer
+  }
+
+  private Observable<Boolean> _getObservable() {
+    return Observable.create(new Observable.OnSubscribe<Boolean>() {
+
+      @Override
+      public void call(Subscriber<? super Boolean> observer) {
+
+        _log("Within Observable");
+
+        _doSomeLongOperation_thatBlocksCurrentThread();
+        observer.onNext(true);
+        observer.onCompleted();
+      }
+    });
+  }
+
+  /**
+   * Observer that handles the result List<Integer> from Observable
+   * through the 3 important actions:
+   *
+   * 1. onCompleted
+   * 2. onError
+   * 3. onNext
+   */
+  private Observer<Boolean> _getObserver() {
+    return new Observer<Boolean>() {
+
+      @Override
+      public void onCompleted() {
+        _log("On complete");
+        _progress.setVisibility(View.INVISIBLE);
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        Timber.e(e, "Error in RxJava Demo concurrency");
+        _log(String.format("Boo Error %s", e.getMessage()));
+        _progress.setVisibility(View.INVISIBLE);
+      }
+
+      @Override
+      public void onNext(Boolean aBoolean) {
+        _log(String.format("onNext with return value \"%b\"", aBoolean));
+      }
+    };
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _doSomeLongOperation_thatBlocksCurrentThread() {
+    _log("performing long operation");
+
+    try {
+      Thread.sleep(3000);
+    } catch (InterruptedException e) {
+      Timber.d("Operation was interrupted");
     }
+  }
 
-    /**
-     * Observer that handles the result List<Integer> from Observable
-     * through the 3 important actions:
-     *
-     * 1. onCompleted
-     * 2. onError
-     * 3. onNext
-     */
-    private Observer<Boolean> _getObserver() {
-        return new Observer<Boolean>() {
-
-
-            @Override
-            public void onCompleted() {
-                _log("On complete");
-                _progress.setVisibility(View.INVISIBLE);
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "Error in RxJava Demo concurrency");
-                _log(String.format("Boo Error %s", e.getMessage()));
-                _progress.setVisibility(View.INVISIBLE);
-            }
-
-            @Override
-            public void onNext(Boolean aBoolean) {
-                _log(String.format("onNext with return value \"%b\"", aBoolean));
-            }
-        };
-    }
+  private void _log(String logMsg) {
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        if (_subscription != null) {
-          _subscription.unsubscribe();
-        }
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
-            });
-        }
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
 
-    private void _doSomeLongOperation_thatBlocksCurrentThread() {
-        _log("performing long operation");
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper()).post(new Runnable() {
 
-        try {
-            Thread.sleep(3000);
-        } catch (InterruptedException e) {
-          Timber.d("Operation was interrupted");
+        @Override
+        public void run() {
+          _adapter.clear();
+          _adapter.addAll(_logs);
         }
+      });
     }
+  }
 
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
+  private void _setupLogger() {
+    _logs = new ArrayList<String>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+    _logsList.setAdapter(_adapter);
+  }
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        ButterKnife.inject(this, layout);
-        return layout;
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private void _setupLogger() {
-        _logs = new ArrayList<String>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-        _logsList.setAdapter(_adapter);
-    }
+  private class LogAdapter
+      extends ArrayAdapter<String> {
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
-
-    private class LogAdapter
-        extends ArrayAdapter<String> {
-
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
-}
+  }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
index 10468edb..8770dd63 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
@@ -11,16 +11,13 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.app.R;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
@@ -30,170 +27,164 @@
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
-
 public class DemoTimeoutFragment
     extends Fragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-
-    private Subscription _subscription;
-
-    @OnClick(R.id.btn_demo_timeout_1_2s)
-    public void onStart2sTask() {
-        _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this,
-                                                       _getObservableTask_2sToComplete())
-                                         .observeOn(AndroidSchedulers.mainThread())
-                                         .subscribe(_getEventCompletionObserver());
-    }
-
-    @OnClick(R.id.btn_demo_timeout_1_5s)
-    public void onStart5sTask() {
-        _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this, _getObservableFor5sTask())
-                                         .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
-                                         .subscribeOn(Schedulers.computation())
-                                         .observeOn(AndroidSchedulers.mainThread())
-                                         .subscribe(_getEventCompletionObserver());
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    private Observable<String> _getObservableFor5sTask() {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
-
-            @Override
-            public void call(Subscriber<? super String> subscriber) {
-                _log(String.format("Starting a 5s task"));
-                subscriber.onNext("5 s");
-                try {
-                    Thread.sleep(1200);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-                subscriber.onCompleted();
-            }
-        });
-    }
-
-    private Observable<String> _getObservableTask_2sToComplete() {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
-
-            @Override
-            public void call(Subscriber<? super String> subscriber) {
-                _log(String.format("Starting a 2s task"));
-                subscriber.onNext("2 s");
-                try {
-                    Thread.sleep(2000);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-                subscriber.onCompleted();
-            }
-        }).subscribeOn(Schedulers.computation()).timeout(3, TimeUnit.SECONDS);
-    }
-
-    private Observable<? extends String> _getTimeoutObservable() {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
-
-            @Override
-            public void call(Subscriber<? super String> subscriber) {
-                _log("Timing out this task ...");
-                subscriber.onCompleted();
-            }
-        });
-    }
-
-    private Observer<String> _getEventCompletionObserver() {
-        return new Observer<String>() {
-
-
-            @Override
-            public void onCompleted() {
-                _log(String.format("task was completed"));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                _log(String.format("Dang a task timeout"));
-                onCompleted();
-                Timber.e(e, "Timeout Demo exception");
-            }
-
-            @Override
-            public void onNext(String taskType) {
-                _log(String.format("onNext %s task", taskType));
-            }
-        };
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _subscription.unsubscribe();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
-        ButterKnife.inject(this, layout);
-        return layout;
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<String>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
-            });
+  @InjectView(R.id.list_threading_log) ListView _logsList;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+
+  private Subscription _subscription;
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _subscription.unsubscribe();
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_demo_timeout_1_2s)
+  public void onStart2sTask() {
+    _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this,
+                                                   _getObservableTask_2sToComplete())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_getEventCompletionObserver());
+  }
+
+  @OnClick(R.id.btn_demo_timeout_1_5s)
+  public void onStart5sTask() {
+    _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this,
+                                                   _getObservableFor5sTask())
+        .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
+        .subscribeOn(Schedulers.computation())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_getEventCompletionObserver());
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Main Rx entities
+
+  private Observable<String> _getObservableFor5sTask() {
+    return Observable.create(new Observable.OnSubscribe<String>() {
+
+      @Override
+      public void call(Subscriber<? super String> subscriber) {
+        _log(String.format("Starting a 5s task"));
+        subscriber.onNext("5 s");
+        try {
+          Thread.sleep(1200);
+        } catch (InterruptedException e) {
+          e.printStackTrace();
+        }
+        subscriber.onCompleted();
+      }
+    });
+  }
+
+  private Observable<String> _getObservableTask_2sToComplete() {
+    return Observable.create(new Observable.OnSubscribe<String>() {
+
+      @Override
+      public void call(Subscriber<? super String> subscriber) {
+        _log(String.format("Starting a 2s task"));
+        subscriber.onNext("2 s");
+        try {
+          Thread.sleep(2000);
+        } catch (InterruptedException e) {
+          e.printStackTrace();
         }
+        subscriber.onCompleted();
+      }
+    }).subscribeOn(Schedulers.computation()).timeout(3, TimeUnit.SECONDS);
+  }
+
+  private Observable<? extends String> _getTimeoutObservable() {
+    return Observable.create(new Observable.OnSubscribe<String>() {
+
+      @Override
+      public void call(Subscriber<? super String> subscriber) {
+        _log("Timing out this task ...");
+        subscriber.onCompleted();
+      }
+    });
+  }
+
+  private Observer<String> _getEventCompletionObserver() {
+    return new Observer<String>() {
+
+      @Override
+      public void onCompleted() {
+        _log(String.format("task was completed"));
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        _log(String.format("Dang a task timeout"));
+        onCompleted();
+        Timber.e(e, "Timeout Demo exception");
+      }
+
+      @Override
+      public void onNext(String taskType) {
+        _log(String.format("onNext %s task", taskType));
+      }
+    };
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<String>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+        @Override
+        public void run() {
+          _adapter.clear();
+          _adapter.addAll(_logs);
+        }
+      });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-        extends ArrayAdapter<String> {
+  private class LogAdapter
+      extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
+  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 1c509657..bb8cc537 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -2,25 +2,22 @@
 
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
-
 import com.morihacky.android.rxjava.app.R;
-
 import timber.log.Timber;
 
 public class MainActivity
     extends FragmentActivity {
 
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_main);
 
-        Timber.plant(new Timber.DebugTree());
+    Timber.plant(new Timber.DebugTree());
 
-        getSupportFragmentManager().beginTransaction()
-                                   .addToBackStack(this.toString())
-//                                   .replace(R.id.activity_main, new MainFragment(), this.toString())
-                                   .replace(R.id.activity_main, new SubjectDebounceSearchEmitterFragment(), this.toString())
-                                   .commit();
-    }
+    getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
+        .replace(R.id.activity_main, new MainFragment(), this.toString())
+        //.replace(R.id.activity_main, new SubjectDebounceSearchEmitterFragment(), this.toString())
+        .commit();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index ae2cbf5f..dc49147c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -6,65 +6,55 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-
-import com.morihacky.android.rxjava.app.R;
-
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.app.R;
 
 public class MainFragment
     extends Fragment {
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_main, container, false);
-        ButterKnife.inject(this, layout);
-        return layout;
-    }
-
-    @OnClick(R.id.btn_demo_schedulers)
-    public void demoConcurrencyWithSchedulers() {
-        getActivity().getSupportFragmentManager()
-                     .beginTransaction()
-                     .addToBackStack(this.toString())
-                     .replace(R.id.activity_main,
-                              new ConcurrencyWithSchedulersDemoFragment(),
-                              this.toString())
-                     .commit();
-    }
-
-    @OnClick(R.id.btn_demo_buffer)
-    public void demoBuffer() {
-        getActivity().getSupportFragmentManager()
-                     .beginTransaction()
-                     .addToBackStack(this.toString())
-                     .replace(R.id.activity_main,
-                              new BufferDemoFragment(),
-                              this.toString())
-                     .commit();
-    }
-
-    @OnClick(R.id.btn_demo_subject_debounce)
-    public void demoThrottling() {
-        getActivity().getSupportFragmentManager()
-                     .beginTransaction()
-                     .addToBackStack(this.toString())
-                     .replace(R.id.activity_main,
-                              new SubjectDebounceSearchEmitterFragment(),
-                              this.toString())
-                     .commit();
-    }
-
-    @OnClick(R.id.btn_demo_subject_timeout)
-    public void demoTimeout() {
-        getActivity().getSupportFragmentManager()
-                     .beginTransaction()
-                     .addToBackStack(this.toString())
-                     .replace(R.id.activity_main,
-                              new DemoTimeoutFragment(),
-                              this.toString())
-                     .commit();
-    }
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_main, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_demo_schedulers)
+  public void demoConcurrencyWithSchedulers() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new ConcurrencyWithSchedulersDemoFragment(), this.toString())
+        .commit();
+  }
+
+  @OnClick(R.id.btn_demo_buffer)
+  public void demoBuffer() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new BufferDemoFragment(), this.toString())
+        .commit();
+  }
+
+  @OnClick(R.id.btn_demo_subject_debounce)
+  public void demoThrottling() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new SubjectDebounceSearchEmitterFragment(), this.toString())
+        .commit();
+  }
+
+  @OnClick(R.id.btn_demo_subject_timeout)
+  public void demoTimeout() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new DemoTimeoutFragment(), this.toString())
+        .commit();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
new file mode 100644
index 00000000..936573da
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -0,0 +1,78 @@
+package com.morihacky.android.rxjava;
+
+import android.support.v4.app.Fragment;
+
+public class RetrofitFragment
+    extends Fragment {
+
+}
+
+
+
+
+/*
+interface Github {
+  @GET("/repos/{owner}/{repo}/contributors")
+  Observable<List<Contributor>> contributors (
+      @Path("owner") String owner,
+      @sPath("repo") String repo,
+    );
+
+  @GET("/users/{user}")
+  Observable<User> user(
+    @Path("user") String user);
+}
+
+
+    // Get Observable of List<Contributor>
+    // Then from each contributor object in that List
+      // print out the contributions and name
+
+    github.contributors("netflix", "rxjava")
+          .lift(flattenList())
+          .forEach(c -> println(c.contributions + '\t' + c.login));
+
+
+            1483 benjchritensen
+            225  zxswing
+
+
+    // Get Observable of List<Contributor>
+    // Then from each contributor object in that List
+    // emit stream of User Observables (by making retrofit call)  ---  1/2 flatmap
+    // combine into a single observable of User                   ---  2/2 flatmap
+    // print out the name of user
+
+
+    github.contributors("netflix", "rxjava")
+          .lift(flattenList())
+          .flatMap(c -> gitHub.user(c.login))
+          .forEach(user -> println(user.name));
+
+
+            Observable.range(0, n)
+                .flatMap({n -> doAsyncWorkThatReturnsObservable(n)})
+                .subscribe(
+                   { println(it); },                          // onNext
+                   { println("Error: " + it.getMessage()); }, // onError
+                   { println("Sequence complete"); }          // onCompleted
+                );
+
+            Ben Christensen
+            Shixong Zu
+
+
+    // Get Observable of List<Contributor>
+    // Then from each contributor object in that List
+    // emit stream of User Observables (by making retrofit call)  ---  1/2 flatmap
+    // combine into a single observable of User                   ---  2/2 flatmap
+    // filter only those users that have a name
+    // print out the name of user
+
+    github.contributors("netflix", "rxjava")
+          .lift(flattenList())
+          .flatMap(c -> gitHub.user(c.login))
+          .filter(user -> user.name != null)
+          .forEach(user -> println(user.name));
+}
+*/
diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index d4ccd0cf..0cd23db8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -11,16 +11,13 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnTextChanged;
 import com.morihacky.android.rxjava.app.R;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnTextChanged;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
@@ -31,7 +28,6 @@
 import rx.subjects.PublishSubject;
 import timber.log.Timber;
 
-
 /**
  * The reason we use a Subject for tracking the search query is because it emits observables.
  * Because a Subject subscribes to an Observable, it will trigger that Observable to begin emitting items
@@ -44,7 +40,7 @@
  * (unlike the way it's done in {@link com.morihacky.android.rxjava.ConcurrencyWithSchedulersDemoFragment#startLongOperation()})
  * where we create the subscription on every single event change (OnClick or OnTextchanged) which is
  *
- * wasteful!                : not really since we anyway unsubscribe in OnDestroyView)
+ * wasteful!                : not really since we anyway unsubscribe in OnDestroyView
  * less-elegant             : as a concept for sure
  * simpler actually         : adds one more step in the 3 step subscription process, where we create emitter, and then send observables to that emitter)
  * incapable of debounce    : this is the primary reason, since creating new observable everytime in subscription disregards debounce on subsequent calls
@@ -52,136 +48,133 @@
 public class SubjectDebounceSearchEmitterFragment
     extends Fragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-
-    private Subscription _subscription;
-    private PublishSubject<Observable<String>> _searchTextEmitterSubject;
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-
-        _searchTextEmitterSubject = PublishSubject.create();
-        _subscription = AndroidObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
-                                                       Observable.switchOnNext(_searchTextEmitterSubject))
-//                                         .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
-                                         .throttleFirst(400, TimeUnit.MILLISECONDS, Schedulers.io())
-                                         .timeout(400, TimeUnit.MILLISECONDS, Schedulers.io())
-                                         .observeOn(AndroidSchedulers.mainThread())
-                                         .subscribe(_getSearchObserver());
-    }
-
-    private Observer<String> _getSearchObserver() {
-        return new Observer<String>() {
-
-
-            @Override
-            public void onCompleted() {
-                Timber.d("--------- onComplete");
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "--------- Woops on error!");
-                _log(String.format("Dang error. check your logs"));
-            }
-
-            @Override
-            public void onNext(String searchText) {
-                _log(String.format("onNext You searched for %s", searchText));
-                onCompleted();
-            }
-        };
-    }
-
-    @OnTextChanged(R.id.input_txt_subject_debounce)
-    public void onTextEntered(CharSequence charsEntered) {
-        Timber.d("---------- text entered %s", charsEntered);
-        _searchTextEmitterSubject.onNext(_getASearchObservableFor(charsEntered.toString()));
+  @InjectView(R.id.list_threading_log) ListView _logsList;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+
+  private Subscription _subscription;
+  private PublishSubject<Observable<String>> _searchTextEmitterSubject;
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+
+    _searchTextEmitterSubject = PublishSubject.create();
+    _subscription = AndroidObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
+                                                   Observable.switchOnNext(_searchTextEmitterSubject))
+        // .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
+        .throttleFirst(400, TimeUnit.MILLISECONDS, Schedulers.io())
+        .timeout(400, TimeUnit.MILLISECONDS, Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_getSearchObserver());
+  }
+
+  @OnTextChanged(R.id.input_txt_subject_debounce)
+  public void onTextEntered(CharSequence charsEntered) {
+    Timber.d("---------- text entered %s", charsEntered);
+    _searchTextEmitterSubject.onNext(_getASearchObservableFor(charsEntered.toString()));
+  }
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    if (_subscription != null) {
+      _subscription.unsubscribe();
     }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    /**
-     * @param searchText search text entered onTextChange
-     *
-     * @return a new observable which searches for text searchText, explicitly say you want subscription to be done on a a non-UI thread, otherwise it'll default to the main thread.
-     */
-    private Observable<String> _getASearchObservableFor(final String searchText) {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
-
-            @Override
-            public void call(Subscriber<? super String> subscriber) {
-
-                Timber.d("----------- inside the search observable");
-                subscriber.onNext(searchText);
-                // subscriber.onCompleted(); This seems to have no effect.
-            }
-        }).subscribeOn(Schedulers.io());
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _subscription.unsubscribe();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_subject_debounce, container, false);
-        ButterKnife.inject(this, layout);
-        return layout;
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<String>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
-            });
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_subject_debounce, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Main Rx entities
+
+  private Observer<String> _getSearchObserver() {
+    return new Observer<String>() {
+
+      @Override
+      public void onCompleted() {
+        Timber.d("--------- onComplete");
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        Timber.e(e, "--------- Woops on error!");
+        _log(String.format("Dang error. check your logs"));
+      }
+
+      @Override
+      public void onNext(String searchText) {
+        _log(String.format("onNext You searched for %s", searchText));
+        onCompleted();
+      }
+    };
+  }
+
+  /**
+   * @param searchText search text entered onTextChange
+   * @return a new observable which searches for text searchText, explicitly say you want subscription to be done on a a non-UI thread, otherwise it'll default to the main thread.
+   */
+  private Observable<String> _getASearchObservableFor(final String searchText) {
+    return Observable.create(new Observable.OnSubscribe<String>() {
+
+      @Override
+      public void call(Subscriber<? super String> subscriber) {
+
+        Timber.d("----------- inside the search observable");
+        subscriber.onNext(searchText);
+        // subscriber.onCompleted(); This seems to have no effect.
+      }
+    }).subscribeOn(Schedulers.io());
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<String>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+        @Override
+        public void run() {
+          _adapter.clear();
+          _adapter.addAll(_logs);
         }
+      });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-        extends ArrayAdapter<String> {
+  private class LogAdapter
+      extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
+  }
 }
\ No newline at end of file

From a789b5f64dbb487a34cbfdb7c0c74d72f822c393 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 11 Sep 2014 12:23:21 -0700
Subject: [PATCH 013/260] fix: use debounce operator - was trying out something
 else and forgot to comment back to original

---
 .../SubjectDebounceSearchEmitterFragment.java | 28 +++++++++----------
 1 file changed, 13 insertions(+), 15 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 0cd23db8..793d0296 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -56,21 +56,6 @@ public class SubjectDebounceSearchEmitterFragment
   private Subscription _subscription;
   private PublishSubject<Observable<String>> _searchTextEmitterSubject;
 
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _setupLogger();
-
-    _searchTextEmitterSubject = PublishSubject.create();
-    _subscription = AndroidObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
-                                                   Observable.switchOnNext(_searchTextEmitterSubject))
-        // .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
-        .throttleFirst(400, TimeUnit.MILLISECONDS, Schedulers.io())
-        .timeout(400, TimeUnit.MILLISECONDS, Schedulers.io())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(_getSearchObserver());
-  }
-
   @OnTextChanged(R.id.input_txt_subject_debounce)
   public void onTextEntered(CharSequence charsEntered) {
     Timber.d("---------- text entered %s", charsEntered);
@@ -94,6 +79,19 @@ public View onCreateView(LayoutInflater inflater,
     return layout;
   }
 
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+
+    _searchTextEmitterSubject = PublishSubject.create();
+    _subscription = AndroidObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
+                                                   Observable.switchOnNext(_searchTextEmitterSubject))
+        .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_getSearchObserver());
+  }
+
   // -----------------------------------------------------------------------------------
   // Main Rx entities
 

From 31def9ffab460ac74c1ad726cfbdc55d2066f33a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 12 Sep 2014 12:07:27 -0700
Subject: [PATCH 014/260] feat: add examples from Retrofit similar to
 JakeWharton's examples

---
 README.md                                     |   7 +-
 app/app.iml                                   |  38 +++--
 app/build.gradle                              |   6 +-
 .../android/rxjava/MainFragment.java          |  11 +-
 .../android/rxjava/RetrofitFragment.java      | 149 +++++++++++++++---
 .../android/rxjava/retrofit/Contributor.java  |   6 +
 .../android/rxjava/retrofit/GithubApi.java    |  22 +++
 .../android/rxjava/retrofit/User.java         |   6 +
 app/src/main/res/layout/fragment_main.xml     |   5 +-
 app/src/main/res/layout/fragment_retrofit.xml |  77 +++++++++
 app/src/main/res/values/strings.xml           |   3 +-
 11 files changed, 291 insertions(+), 39 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
 create mode 100644 app/src/main/res/layout/fragment_retrofit.xml

diff --git a/README.md b/README.md
index 2c2f0ebd..1e61f3c7 100644
--- a/README.md
+++ b/README.md
@@ -40,9 +40,10 @@ Two implementations:
 
 ### Retrofit and RxJava (zip, flatmap) (wip)
 
-Working examples of github from JakeWharton's Retrofit preso at Netflix
-https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480
-https://speakerdeck.com/jakewharton/2014-1
+[Retrofit from Square](http://square.github.io/retrofit/) is an another amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples taken straight up from the android demigod developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motiviation to use RxJava was from attending this talk at Netflix.
+
+Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6.
+
 
 ### First retrieve from cached data, then make a network call if you can't find your data (concat) (wip)
 
diff --git a/app/app.iml b/app/app.iml
index ada02266..3cd4a48b 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -13,6 +13,7 @@
         <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugJava" />
         <option name="ASSEMBLE_TEST_TASK_NAME" value="assembleDebugTest" />
         <option name="SOURCE_GEN_TASK_NAME" value="generateDebugSources" />
+        <option name="TEST_SOURCE_GEN_TASK_NAME" value="generateDebugTestSources" />
         <option name="ALLOW_USER_CONFIGURATION" value="false" />
         <option name="MANIFEST_FILE_RELATIVE_PATH" value="/src/main/AndroidManifest.xml" />
         <option name="RES_FOLDER_RELATIVE_PATH" value="/src/main/res" />
@@ -37,41 +38,60 @@
       <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/test/debug" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/res" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/assets" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/aidl" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/assets" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/java" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/jni" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/rs" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/res" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/assets" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/aidl" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/assets" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/jni" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/rs" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/res" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/assets" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/aidl" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/assets" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/java" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/jni" isTestSource="true" />
       <sourceFolder url="file://$MODULE_DIR$/src/androidTest/rs" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/assets" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/bundles" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/classes" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/coverage-instrumented-classes" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dependency-cache" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dex" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dex-cache" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/jacoco" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/javaResources" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/libs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/lint" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/manifests" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/ndk" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/pre-dexed" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/proguard" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/res" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
     </content>
     <orderEntry type="jdk" jdkName="Android API 19 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" name="support-v13-20.0.0" level="project" />
     <orderEntry type="library" exported="" name="timber-2.2.2" level="project" />
+    <orderEntry type="library" exported="" name="okhttp-urlconnection-2.0.0" level="project" />
+    <orderEntry type="library" exported="" name="support-v13-20.0.0" level="project" />
     <orderEntry type="library" exported="" name="rxjava-core-0.17.6" level="project" />
     <orderEntry type="library" exported="" name="gson-2.2.4" level="project" />
-    <orderEntry type="library" exported="" name="okhttp-1.6.0" level="project" />
+    <orderEntry type="library" exported="" name="okio-1.0.0" level="project" />
+    <orderEntry type="library" exported="" name="support-v4-20.0.0" level="project" />
+    <orderEntry type="library" exported="" name="retrofit-1.6.1" level="project" />
     <orderEntry type="library" exported="" name="guava-17.0" level="project" />
     <orderEntry type="library" exported="" name="butterknife-5.1.1" level="project" />
-    <orderEntry type="library" exported="" name="okhttp-urlconnection-1.6.0" level="project" />
     <orderEntry type="library" exported="" name="support-annotations-20.0.0" level="project" />
-    <orderEntry type="library" exported="" name="support-v4-20.0.0" level="project" />
-    <orderEntry type="library" exported="" name="retrofit-1.5.1" level="project" />
+    <orderEntry type="library" exported="" name="okhttp-2.0.0" level="project" />
     <orderEntry type="library" exported="" name="rxjava-android-0.17.6" level="project" />
   </component>
 </module>
diff --git a/app/build.gradle b/app/build.gradle
index 397b08f5..84b9f40c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,9 +9,9 @@ dependencies {
     compile 'com.jakewharton.timber:timber:2.2.2'
     compile 'com.netflix.rxjava:rxjava-android:0.17.+'
 
-    compile 'com.squareup.retrofit:retrofit:1.6.+'
-    compile 'com.squareup.okhttp:okhttp:2.0.+'
-    compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.+'
+    compile 'com.squareup.retrofit:retrofit:1.6.1'
+    compile 'com.squareup.okhttp:okhttp:2.0.0'
+    compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
 
 }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index dc49147c..63c38638 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -49,7 +49,16 @@ public void demoThrottling() {
         .commit();
   }
 
-  @OnClick(R.id.btn_demo_subject_timeout)
+  @OnClick(R.id.btn_demo_retrofit)
+  public void demoRetrofitCalls() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new RetrofitFragment(), this.toString())
+        .commit();
+  }
+
+  //@OnClick(R.id.btn_demo_subject_timeout)
   public void demoTimeout() {
     getActivity().getSupportFragmentManager()
         .beginTransaction()
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 936573da..1fa6283a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -1,30 +1,141 @@
 package com.morihacky.android.rxjava;
 
+import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.EditText;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.google.common.base.Strings;
+import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.retrofit.Contributor;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.morihacky.android.rxjava.retrofit.User;
+import java.util.List;
+import retrofit.RestAdapter;
+import rx.Observable;
+import rx.Observer;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func1;
+import rx.functions.Func2;
+import rx.schedulers.Schedulers;
+import timber.log.Timber;
 
 public class RetrofitFragment
     extends Fragment {
 
-}
-
-
-
+  GithubApi api;
+
+  @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
+  @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    RestAdapter restAdapter = new RestAdapter.Builder().setEndpoint("https://api.github.com/")
+        .build();
+
+    api = restAdapter.create(GithubApi.class);
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_demo_retrofit_contributors)
+  public void onListContributorsClicked() {
+    api.contributors(_username.getText().toString(), _repo.getText().toString())
+        .subscribe(new Observer<List<Contributor>>() {
+          @Override
+          public void onCompleted() {
+            Timber.d("Retrofit call 1 completed");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "woops we got an error while getting the list of contributors");
+          }
+
+          @Override
+          public void onNext(List<Contributor> contributors) {
+            for (Contributor c : contributors) {
+              Timber.d("%s has made %d contributions to %s",
+                       c.login,
+                       c.contributions,
+                       _repo.getText().toString());
+            }
+          }
+        });
+  }
+
+  @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
+  public void onListContributorsWithFullUserInfoClicked() {
+    api.contributors(_username.getText().toString(), _repo.getText().toString())
+        .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+          @Override
+          public Observable<Contributor> call(List<Contributor> contributors) {
+            return Observable.from(contributors);
+          }
+        })
+        .flatMap(new Func1<Contributor, Observable<?>>() {
+          @Override
+          public Observable<?> call(Contributor contributor) {
+            Observable.zip(Observable.just(contributor),
+                           api.user(contributor.login).filter(new Func1<User, Boolean>() {
+                             @Override
+                             public Boolean call(User user) {
+                               return !Strings.isNullOrEmpty(user.name) && !Strings.isNullOrEmpty(user.email);
+                             }
+                           }),
+                           new Func2<Contributor, User, Object>() {
+                             @Override
+                             public Object call(Contributor contributor, User user) {
+                               Timber.d("%s(%s) has made %d contributions to %s",
+                                        user.name,
+                                        user.email,
+                                        contributor.contributions,
+                                        _repo.getText().toString());
+
+                               return Observable.empty();
+                             }
+                           }).subscribe();
+            return Observable.empty();
+          }
+        })
+        .subscribeOn(Schedulers.newThread())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(new Observer<Object>() {
+          @Override
+          public void onCompleted() {
+            Timber.d("Retrofit call 2 completed ");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e,
+                     "woops we got an error while getting the list of contributors along with full names");
+          }
+
+          @Override
+          public void onNext(Object o) {
+            Timber.d("hi! onNext");
+          }
+        });
+  }
 
 /*
-interface Github {
-  @GET("/repos/{owner}/{repo}/contributors")
-  Observable<List<Contributor>> contributors (
-      @Path("owner") String owner,
-      @sPath("repo") String repo,
-    );
-
-  @GET("/users/{user}")
-  Observable<User> user(
-    @Path("user") String user);
-}
 
-
-    // Get Observable of List<Contributor>
+   // Get Observable of List<Contributor>
     // Then from each contributor object in that List
       // print out the contributions and name
 
@@ -43,7 +154,6 @@ Observable<User> user(
     // combine into a single observable of User                   ---  2/2 flatmap
     // print out the name of user
 
-
     github.contributors("netflix", "rxjava")
           .lift(flattenList())
           .flatMap(c -> gitHub.user(c.login))
@@ -74,5 +184,6 @@ Observable<User> user(
           .flatMap(c -> gitHub.user(c.login))
           .filter(user -> user.name != null)
           .forEach(user -> println(user.name));
-}
+
 */
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
new file mode 100644
index 00000000..5bd61c7a
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
@@ -0,0 +1,6 @@
+package com.morihacky.android.rxjava.retrofit;
+
+public class Contributor {
+  public String login;
+  public long contributions;
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
new file mode 100644
index 00000000..d25a883d
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -0,0 +1,22 @@
+package com.morihacky.android.rxjava.retrofit;
+
+import java.util.List;
+import retrofit.http.GET;
+import retrofit.http.Path;
+import rx.Observable;
+
+public interface GithubApi {
+
+  /**
+   * See https://developer.github.com/v3/repos/#list-contributors
+   */
+  @GET("/repos/{owner}/{repo}/contributors")
+  Observable<List<Contributor>> contributors(@Path("owner") String owner,
+                                             @Path("repo") String repo);
+
+  /**
+   * See https://developer.github.com/v3/users/
+   */
+  @GET("/users/{user}")
+  Observable<User> user(@Path("user") String user);
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
new file mode 100644
index 00000000..90f7aa3d
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
@@ -0,0 +1,6 @@
+package com.morihacky.android.rxjava.retrofit;
+
+public class User {
+  public String name;
+  public String email;
+}
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 7d5817ff..d4d29ab3 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -34,10 +34,9 @@
             android:text="@string/btn_demo_subject_debounce"/>
 
         <Button
-            android:id="@+id/btn_demo_subject_timeout"
+            android:id="@+id/btn_demo_retrofit"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_timeout"/>
+            android:text="@string/btn_demo_retrofit"/>
     </LinearLayout>
-
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_retrofit.xml b/app/src/main/res/layout/fragment_retrofit.xml
new file mode 100644
index 00000000..17a67d2d
--- /dev/null
+++ b/app/src/main/res/layout/fragment_retrofit.xml
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_retrofit"/>
+
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent">
+
+        <Button
+            android:id="@+id/btn_demo_retrofit_contributors"
+            android:layout_weight="2"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="14sp"
+            android:text="Log contributors of:"/>
+
+        <EditText
+            android:id="@+id/demo_retrofit_contributors_username"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="12sp"
+            android:text="square"
+            android:hint="owner"/>
+
+        <EditText
+            android:id="@+id/demo_retrofit_contributors_repository"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="12sp"
+            android:text="retrofit"
+            android:hint="reponame"/>
+    </LinearLayout>
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent">
+
+        <Button
+            android:id="@+id/btn_demo_retrofit_contributors_with_user_info"
+            android:layout_weight="2"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="14sp"
+            android:text="Log with full User Info:"/>
+
+        <EditText
+            android:id="@+id/demo_retrofit_contributors_with_user_info_username"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="12sp"
+            android:text="square"
+            android:hint="owner"/>
+
+        <EditText
+            android:id="@+id/demo_retrofit_contributors_with_user_info_repository"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="12sp"
+            android:text="retrofit"
+            android:hint="reponame"/>
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1975a48f..5b4dee20 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -9,10 +9,11 @@
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
     <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
     <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
+    <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
 
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
     <string name="btn_demo_subject_debounce">search text listener(subject debouncing)</string>
     <string name="btn_demo_timeout">delayed jobs (timeout)</string>
-
+    <string name="btn_demo_retrofit">Retrofit + RxJava</string>
 </resources>

From ec617b2eeb75e1d1ffe9aaf4954bddb99c21fa62 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 12 Sep 2014 12:08:50 -0700
Subject: [PATCH 015/260] fix: moving from wip

---
 README.md | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 1e61f3c7..51c18352 100644
--- a/README.md
+++ b/README.md
@@ -36,14 +36,13 @@ Two implementations:
 2a. Using a traditional observable - but encompassing the OnClick within the observable
 2b. Using PublishSubject and sending single clicks to the Observable, which in-turn then sends it to the Observer
 
-## Work in Progress:
-
-### Retrofit and RxJava (zip, flatmap) (wip)
+### Retrofit and RxJava (zip, flatmap)
 
 [Retrofit from Square](http://square.github.io/retrofit/) is an another amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples taken straight up from the android demigod developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motiviation to use RxJava was from attending this talk at Netflix.
 
 Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6.
 
+## Work in Progress:
 
 ### First retrieve from cached data, then make a network call if you can't find your data (concat) (wip)
 

From eeb850d61163bb7de65f9b04098280b3f3f8eaf8 Mon Sep 17 00:00:00 2001
From: kaushikgopal <code@kaush.co>
Date: Fri, 12 Sep 2014 12:10:43 -0700
Subject: [PATCH 016/260] fix: remove commented out section

---
 .../android/rxjava/RetrofitFragment.java      | 56 +------------------
 1 file changed, 1 insertion(+), 55 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 1fa6283a..31d41fa1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -132,58 +132,4 @@ public void onNext(Object o) {
           }
         });
   }
-
-/*
-
-   // Get Observable of List<Contributor>
-    // Then from each contributor object in that List
-      // print out the contributions and name
-
-    github.contributors("netflix", "rxjava")
-          .lift(flattenList())
-          .forEach(c -> println(c.contributions + '\t' + c.login));
-
-
-            1483 benjchritensen
-            225  zxswing
-
-
-    // Get Observable of List<Contributor>
-    // Then from each contributor object in that List
-    // emit stream of User Observables (by making retrofit call)  ---  1/2 flatmap
-    // combine into a single observable of User                   ---  2/2 flatmap
-    // print out the name of user
-
-    github.contributors("netflix", "rxjava")
-          .lift(flattenList())
-          .flatMap(c -> gitHub.user(c.login))
-          .forEach(user -> println(user.name));
-
-
-            Observable.range(0, n)
-                .flatMap({n -> doAsyncWorkThatReturnsObservable(n)})
-                .subscribe(
-                   { println(it); },                          // onNext
-                   { println("Error: " + it.getMessage()); }, // onError
-                   { println("Sequence complete"); }          // onCompleted
-                );
-
-            Ben Christensen
-            Shixong Zu
-
-
-    // Get Observable of List<Contributor>
-    // Then from each contributor object in that List
-    // emit stream of User Observables (by making retrofit call)  ---  1/2 flatmap
-    // combine into a single observable of User                   ---  2/2 flatmap
-    // filter only those users that have a name
-    // print out the name of user
-
-    github.contributors("netflix", "rxjava")
-          .lift(flattenList())
-          .flatMap(c -> gitHub.user(c.login))
-          .filter(user -> user.name != null)
-          .forEach(user -> println(user.name));
-
-*/
-}
\ No newline at end of file
+}

From cd202c811db29b128e01d5f3ee0c4cf1d04dd17b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 15 Sep 2014 07:59:49 -0700
Subject: [PATCH 017/260] feat: add double binding text view example + cleanup
 README

---
 README.md                                     | 59 +++++++-------
 .../rxjava/DoubleBindingTextViewFragment.java | 76 +++++++++++++++++++
 .../android/rxjava/MainActivity.java          |  1 -
 .../android/rxjava/MainFragment.java          |  9 +++
 .../fragment_double_binding_textview.xml      | 56 ++++++++++++++
 app/src/main/res/layout/fragment_main.xml     |  6 ++
 app/src/main/res/values/strings.xml           |  2 +
 7 files changed, 179 insertions(+), 30 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
 create mode 100644 app/src/main/res/layout/fragment_double_binding_textview.xml

diff --git a/README.md b/README.md
index 51c18352..b3de3d5c 100644
--- a/README.md
+++ b/README.md
@@ -15,14 +15,6 @@ The long operation is simulated by a blocking Thread.sleep call (since this is d
 
 To really see this example shine. Hit the button multiple times and see how the button click (which is a ui operation) is never blocked because the long operation only runs in the background.
 
-### Instant/Auto searching (subject + debounce)
-
-This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
-
-As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that.
-
-This is the debounce/throttleWithTimeout method in RxJava.
-
 ### Accumulate calls (buffer)
 
 This is a demo of how events can be accumulated using the "buffer" operation.
@@ -31,45 +23,54 @@ A button is provided and we accumulate the number of clicks on that button, over
 
 If you hit the button once. you'll get message saying the button was hit once. If you hit it 5 times continuosly within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying "Button hit once").
 
-Two implementations:
+Two possible implementations:
 
-2a. Using a traditional observable - but encompassing the OnClick within the observable
+2a. Using a traditional observable - but encompassing the OnClick within the observable (as demoed here)
 2b. Using PublishSubject and sending single clicks to the Observable, which in-turn then sends it to the Observer
 
+### Instant/Auto searching (subject + debounce)
+
+This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
+
+As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that.
+
+This is the debounce/throttleWithTimeout method in RxJava.
+
 ### Retrofit and RxJava (zip, flatmap)
 
-[Retrofit from Square](http://square.github.io/retrofit/) is an another amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples taken straight up from the android demigod developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motiviation to use RxJava was from attending this talk at Netflix.
+[Retrofit from Square](http://square.github.io/retrofit/) is an amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples hitting the github api, taken straight up from the android demigod-developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motiviation to use RxJava was from attending this talk at Netflix.
 
-Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6.
+Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the github api quota pretty fast so send in an oauth-token as a parameter if you want to keep running these examples often).
 
-## Work in Progress:
+### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
-### First retrieve from cached data, then make a network call if you can't find your data (concat) (wip)
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,3,f4,f5 are essentially network calls that when made, give back a result that' needed for a future calculation.
 
-[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
 
-### Make two parallel network calls, then combine the result into a single data point (zip) (wip)
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
 
-[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
-http://www.programmableweb.com/category/all/apis?order=field_popularity
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits, and I find a lack of other compelling examples.
 
-### Orchestrating Observables  (flatmap + zip) (wip)
+### Double binding with TextViews ()
 
-If actions A and B depend on action X running; and action C depends on action Y running. What if you want to combine the result of all those calls and have a single output?
 
-                     ____________ A  ________________
-       (flatmap)    /                                |   (zip all 3)
-    X  ------------/_____________ B  ________________| ----------- > Ouput
-                                                     |
-    Y  -------------------------  C  ________________|
 
-### Pagination (zip) (wip)
 
-a. Simple pagination
-b. Optimized pagination
+## Work in Progress:
+
+### First retrieve from cached data, if no cache found make a network call if you can't find your data (concat) (wip)
+[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
 
+### Pagination (wip)
 
+a. Simple pagination
+b. Optimized pagination
 
-### Replacing your event Bus (wip)
+### Event Bus with RxJAva (wip)
 
 http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
new file mode 100644
index 00000000..551505c9
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
@@ -0,0 +1,76 @@
+package com.morihacky.android.rxjava;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+import android.widget.TextView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnTextChanged;
+import com.google.common.base.Strings;
+import com.morihacky.android.rxjava.app.R;
+import rx.Subscription;
+import rx.functions.Action1;
+import rx.subjects.PublishSubject;
+
+public class DoubleBindingTextViewFragment
+    extends Fragment {
+
+  @InjectView(R.id.double_binding_num1) EditText _number1;
+  @InjectView(R.id.double_binding_num2) EditText _number2;
+  @InjectView(R.id.double_binding_result) TextView _result;
+
+  Subscription _subscription;
+  PublishSubject<Float> _resultEmitterSubject;
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
+    ButterKnife.inject(this, layout);
+
+    _resultEmitterSubject = PublishSubject.create();
+    _subscription = _resultEmitterSubject.asObservable().subscribe(new Action1<Float>() {
+      @Override
+      public void call(Float aFloat) {
+        _result.setText(String.valueOf(aFloat));
+      }
+    });
+
+    onNumberChanged();
+    _number2.requestFocus();
+    
+    return layout;
+  }
+
+  @OnTextChanged({ R.id.double_binding_num1, R.id.double_binding_num2 })
+  public void onNumberChanged() {
+    float num1 = 0;
+    float num2 = 0;
+
+    if (!Strings.isNullOrEmpty(_number1.getText().toString())) {
+      num1 = Float.parseFloat(_number1.getText().toString());
+    }
+
+    if (!Strings.isNullOrEmpty(_number2.getText().toString())) {
+      num2 = Float.parseFloat(_number2.getText().toString());
+    }
+
+    _resultEmitterSubject.onNext(num1 + num2);
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    if (_subscription != null) {
+      _subscription.unsubscribe();
+    }
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index bb8cc537..26ac2fa7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -17,7 +17,6 @@ protected void onCreate(Bundle savedInstanceState) {
 
     getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
         .replace(R.id.activity_main, new MainFragment(), this.toString())
-        //.replace(R.id.activity_main, new SubjectDebounceSearchEmitterFragment(), this.toString())
         .commit();
   }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 63c38638..c7a661ed 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -58,6 +58,15 @@ public void demoRetrofitCalls() {
         .commit();
   }
 
+  @OnClick(R.id.btn_demo_double_binding_textview)
+  public void demoDoubleBindingWithPublishSubject() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new DoubleBindingTextViewFragment(), this.toString())
+        .commit();
+  }
+
   //@OnClick(R.id.btn_demo_subject_timeout)
   public void demoTimeout() {
     getActivity().getSupportFragmentManager()
diff --git a/app/src/main/res/layout/fragment_double_binding_textview.xml b/app/src/main/res/layout/fragment_double_binding_textview.xml
new file mode 100644
index 00000000..98fd8fee
--- /dev/null
+++ b/app/src/main/res/layout/fragment_double_binding_textview.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_doublebinding"/>
+
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:layout_marginTop="10dp">
+
+        <EditText
+            android:id="@+id/double_binding_num1"
+            android:layout_weight="1"
+            android:layout_height="50dp"
+            android:layout_width="0dp"
+            android:gravity="center"
+            android:inputType="numberDecimal"
+            android:text="100"/>
+
+        <TextView
+            android:layout_weight="1"
+            android:layout_height="50dp"
+            android:layout_width="0dp"
+            android:gravity="center"
+            android:text="+"/>
+
+        <EditText
+            android:id="@+id/double_binding_num2"
+            android:layout_weight="1"
+            android:layout_height="50dp"
+            android:layout_width="0dp"
+            android:inputType="numberDecimal"
+            android:gravity="center"
+            android:text="8"/>
+    </LinearLayout>
+
+    <TextView
+        android:id="@+id/double_binding_result"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:layout_marginTop="10dp"
+        android:gravity="center"
+        android:textSize="45sp"
+        android:text="0"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index d4d29ab3..1678e0d9 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -38,5 +38,11 @@
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_retrofit"/>
+
+        <Button
+            android:id="@+id/btn_demo_double_binding_textview"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_double_binding_textview"/>
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5b4dee20..869617f9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -16,4 +16,6 @@
     <string name="btn_demo_subject_debounce">search text listener(subject debouncing)</string>
     <string name="btn_demo_timeout">delayed jobs (timeout)</string>
     <string name="btn_demo_retrofit">Retrofit + RxJava</string>
+    <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
+    <string name="msg_demo_doublebinding">The "technique" used here is more useful than the wonderful calculation achieved below. Using this mechanism you can achieve something simliar to AngularJs or the ViewModel pattern pretty easily.</string>
 </resources>

From 92c0ea6fa58bc5f4394956382ae1e8363d4fda34 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 15 Sep 2014 08:49:23 -0700
Subject: [PATCH 018/260] chore: cleanup text

---
 README.md                                     | 39 +++++++++++++++----
 .../rxjava/DoubleBindingTextViewFragment.java |  2 +-
 app/src/main/res/values/strings.xml           |  2 +-
 3 files changed, 33 insertions(+), 10 deletions(-)

diff --git a/README.md b/README.md
index b3de3d5c..06eddf61 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,7 @@
 Learning RxJava for Android by example
 ==============
 
-I've read and watched a lot on Rx. Most examples either use the J8 lambda notations/Scala/Groovy or some other awesome language that us Android developers are constantly envious of.
-
-Unfortunately i could never find real-world simple examples in Android, that could show me how to use RxJava in Android. This repo is a solution to that problem.
+This is a repository with real-world useful examples of using RxJava with Android. It usually will be in a constant state of "Work in Progress" (WIP).
 
 ## Examples:
 
@@ -44,7 +42,7 @@ Since it was a presentation, Jake only put up the most important code snippets i
 
 ### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,3,f4,f5 are essentially network calls that when made, give back a result that' needed for a future calculation.
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
 
 
              (flatmap)
@@ -54,15 +52,18 @@ The below ascii diagram expresses the intention of our next example with panache
             \                        |
              \____________ f5 _______|
 
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits, and I find a lack of other compelling examples.
-
-### Double binding with TextViews ()
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
+### Double binding with TextViews
 
+Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two way data binding", where when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
 
+While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 
 ## Work in Progress:
 
+Examples that I would like to have here, but haven't found the time yet to flush out.
+
 ### First retrieve from cached data, if no cache found make a network call if you can't find your data (concat) (wip)
 [Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
 
@@ -73,4 +74,26 @@ b. Optimized pagination
 
 ### Event Bus with RxJAva (wip)
 
-http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
\ No newline at end of file
+http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
+
+
+## Contributing:
+
+I try to ensure the examples are not overly contrived but reflect a real-world usecase. If you have similar useful examples demonstrating the use of RxJava, feel free to send in a pull request.
+
+I'm wrapping my head around RxJava too so if you feel there's a better way of doing one of the examples mentioned above, open up an issue explaining how. Even better, send a pull request.
+
+## License
+
+Licensed under the Apache License, Version 2.0 (the "License").
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+You agree that all contributions to this repository, in the form of fixes, pull-requests, new examples etc. follow the above mentioned license.
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
index 551505c9..27feb253 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
@@ -46,7 +46,7 @@ public void call(Float aFloat) {
 
     onNumberChanged();
     _number2.requestFocus();
-    
+
     return layout;
   }
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 869617f9..b363f08c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -17,5 +17,5 @@
     <string name="btn_demo_timeout">delayed jobs (timeout)</string>
     <string name="btn_demo_retrofit">Retrofit + RxJava</string>
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
-    <string name="msg_demo_doublebinding">The "technique" used here is more useful than the wonderful calculation achieved below. Using this mechanism you can achieve something simliar to AngularJs or the ViewModel pattern pretty easily.</string>
+    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
 </resources>

From 0c92338f621a27b8f68c9e4351bea52649e88b34 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 21 Sep 2014 13:39:01 -0700
Subject: [PATCH 019/260] chore: add blog post pointing to intentions for
 starting of project

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 06eddf61..936a76b7 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Learning RxJava for Android by example
 ==============
 
-This is a repository with real-world useful examples of using RxJava with Android. It usually will be in a constant state of "Work in Progress" (WIP).
+This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://nerds.weddingpartyapp.com/tech/2014/09/15/learning-rxjava-with-android-by-example/).
 
 ## Examples:
 

From 4e6be4106d9c65c528c13c203ae2c1c94a2d7cc8 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 2 Oct 2014 11:51:22 -0700
Subject: [PATCH 020/260] chore: upgrade RxJava version from 0.17 -> 0.20.4

---
 app/app.iml      | 4 ++--
 app/build.gradle | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/app.iml b/app/app.iml
index 3cd4a48b..3306acd6 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -83,7 +83,6 @@
     <orderEntry type="library" exported="" name="timber-2.2.2" level="project" />
     <orderEntry type="library" exported="" name="okhttp-urlconnection-2.0.0" level="project" />
     <orderEntry type="library" exported="" name="support-v13-20.0.0" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-core-0.17.6" level="project" />
     <orderEntry type="library" exported="" name="gson-2.2.4" level="project" />
     <orderEntry type="library" exported="" name="okio-1.0.0" level="project" />
     <orderEntry type="library" exported="" name="support-v4-20.0.0" level="project" />
@@ -91,8 +90,9 @@
     <orderEntry type="library" exported="" name="guava-17.0" level="project" />
     <orderEntry type="library" exported="" name="butterknife-5.1.1" level="project" />
     <orderEntry type="library" exported="" name="support-annotations-20.0.0" level="project" />
+    <orderEntry type="library" exported="" name="rxjava-core-0.20.4" level="project" />
     <orderEntry type="library" exported="" name="okhttp-2.0.0" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-android-0.17.6" level="project" />
+    <orderEntry type="library" exported="" name="rxjava-android-0.20.4" level="project" />
   </component>
 </module>
 
diff --git a/app/build.gradle b/app/build.gradle
index 84b9f40c..2d319374 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ dependencies {
 
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.2.2'
-    compile 'com.netflix.rxjava:rxjava-android:0.17.+'
+    compile 'com.netflix.rxjava:rxjava-android:0.20.4'
 
     compile 'com.squareup.retrofit:retrofit:1.6.1'
     compile 'com.squareup.okhttp:okhttp:2.0.0'

From 66ceea9d06cf4be7c66c67c463e9264aec548e5e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 2 Oct 2014 12:01:20 -0700
Subject: [PATCH 021/260] feat: wiring up example for polling

---
 .../android/rxjava/MainFragment.java          |   9 ++
 .../android/rxjava/PollingFragment.java       | 111 ++++++++++++++++++
 app/src/main/res/layout/fragment_main.xml     |   6 +
 app/src/main/res/layout/fragment_polling.xml  |  34 ++++++
 app/src/main/res/values/strings.xml           |   4 +-
 5 files changed, 163 insertions(+), 1 deletion(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
 create mode 100644 app/src/main/res/layout/fragment_polling.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index c7a661ed..1598da77 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -67,6 +67,15 @@ public void demoDoubleBindingWithPublishSubject() {
         .commit();
   }
 
+  @OnClick(R.id.btn_demo_polling)
+  public void demoPolling() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new PollingFragment(), this.toString())
+        .commit();
+  }
+
   //@OnClick(R.id.btn_demo_subject_timeout)
   public void demoTimeout() {
     getActivity().getSupportFragmentManager()
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
new file mode 100644
index 00000000..535f4245
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
@@ -0,0 +1,111 @@
+package com.morihacky.android.rxjava;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.app.R;
+import java.util.ArrayList;
+import java.util.List;
+import rx.subscriptions.CompositeSubscription;
+import timber.log.Timber;
+
+public class PollingFragment
+    extends Fragment {
+
+  @InjectView(R.id.list_threading_log) ListView _logsList;
+  @InjectView(R.id.btn_start_simple_polling) Button _btnSimplePolling;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+  private CompositeSubscription _subscriptions;
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _subscriptions.unsubscribe();
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_polling, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_start_simple_polling)
+  public void onStartSimplePollingClicked() {
+    
+  }
+
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _doSomeLongOperation_thatBlocksCurrentThread() {
+    _log("performing long operation");
+
+    try {
+      Thread.sleep(3000);
+    } catch (InterruptedException e) {
+      Timber.d("Operation was interrupted");
+    }
+  }
+
+  private void _log(String logMsg) {
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+        @Override
+        public void run() {
+          _adapter.clear();
+          _adapter.addAll(_logs);
+        }
+      });
+    }
+  }
+
+  private void _setupLogger() {
+    _logs = new ArrayList<String>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
+
+  private class LogAdapter
+      extends ArrayAdapter<String> {
+
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
+    }
+  }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 1678e0d9..8e66e952 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -44,5 +44,11 @@
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_double_binding_textview"/>
+
+        <Button
+            android:id="@+id/btn_demo_polling"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_polling"/>
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_polling.xml b/app/src/main/res/layout/fragment_polling.xml
new file mode 100644
index 00000000..577d7120
--- /dev/null
+++ b/app/src/main/res/layout/fragment_polling.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_polling"/>
+
+
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent">
+
+        <Button
+            android:id="@+id/btn_start_simple_polling"
+            android:layout_height="wrap_content"
+            android:layout_width="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:textSize="16sp"
+            android:text="Start simple polling"/>
+    </LinearLayout>
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index b363f08c..06684990 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -10,6 +10,8 @@
     <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
     <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
+    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
+    <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background. \n\nExponential backoff polling: We start polling but in increasing time intervals depending on a provided condition.</string>
 
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
@@ -17,5 +19,5 @@
     <string name="btn_demo_timeout">delayed jobs (timeout)</string>
     <string name="btn_demo_retrofit">Retrofit + RxJava</string>
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
-    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
+    <string name="btn_demo_polling">Polling with RxJava</string>
 </resources>

From f3579c33ec2f88a5daa0eebffe9180d0a8622252 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 2 Oct 2014 15:36:38 -0700
Subject: [PATCH 022/260] feat: add example for polling a server constantly

---
 README.md                                     |  5 +++
 .../android/rxjava/PollingFragment.java       | 38 ++++++++++++++++---
 app/src/main/res/layout/fragment_polling.xml  |  8 ++++
 app/src/main/res/values/strings.xml           |  2 +-
 4 files changed, 46 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 936a76b7..649db72e 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,11 @@ Auto-updating views are a pretty cool thing. If you've dealt with Angular JS bef
 
 While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 
+### Polling with Schedulers
+
+This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
+
+
 ## Work in Progress:
 
 Examples that I would like to have here, but haven't found the time yet to flush out.
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
index 535f4245..50c20c90 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
@@ -10,7 +10,6 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
-import android.widget.Button;
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
@@ -18,18 +17,26 @@
 import com.morihacky.android.rxjava.app.R;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
+import rx.Observable;
+import rx.Subscriber;
+import rx.functions.Action0;
+import rx.functions.Action1;
+import rx.schedulers.Schedulers;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
 public class PollingFragment
     extends Fragment {
 
+  public static final int INITIAL_DELAY = 0;
+  public static final int POLLING_INTERVAL = 1000;
   @InjectView(R.id.list_threading_log) ListView _logsList;
-  @InjectView(R.id.btn_start_simple_polling) Button _btnSimplePolling;
 
   private LogAdapter _adapter;
   private List<String> _logs;
   private CompositeSubscription _subscriptions;
+  private int _counter = 0;
 
   @Override
   public void onDestroy() {
@@ -40,6 +47,7 @@ public void onDestroy() {
   @Override
   public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     super.onActivityCreated(savedInstanceState);
+    _subscriptions = new CompositeSubscription();
     _setupLogger();
   }
 
@@ -54,21 +62,39 @@ public View onCreateView(LayoutInflater inflater,
 
   @OnClick(R.id.btn_start_simple_polling)
   public void onStartSimplePollingClicked() {
-    
+    _subscriptions.add(Observable.create(new Observable.OnSubscribe<String>() {
+      @Override
+      public void call(final Subscriber<? super String> observer) {
+
+        Schedulers.newThread().createWorker() //
+            .schedulePeriodically(new Action0() {
+              @Override
+              public void call() {
+                observer.onNext(_doNetworkCallAndGetStringResult());
+              }
+            }, INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS);
+      }
+    }).take(10).subscribe(new Action1<String>() {
+      @Override
+      public void call(String s) {
+        _log(String.format("String polling - %s", s));
+      }
+    }));
   }
 
-
   // -----------------------------------------------------------------------------------
   // Method that help wiring up the example (irrelevant to RxJava)
 
-  private void _doSomeLongOperation_thatBlocksCurrentThread() {
-    _log("performing long operation");
+  private String _doNetworkCallAndGetStringResult() {
 
     try {
       Thread.sleep(3000);
     } catch (InterruptedException e) {
       Timber.d("Operation was interrupted");
     }
+    _counter++;
+
+    return String.valueOf(_counter);
   }
 
   private void _log(String logMsg) {
diff --git a/app/src/main/res/layout/fragment_polling.xml b/app/src/main/res/layout/fragment_polling.xml
index 577d7120..a79b2ebb 100644
--- a/app/src/main/res/layout/fragment_polling.xml
+++ b/app/src/main/res/layout/fragment_polling.xml
@@ -25,6 +25,14 @@
             android:layout_marginLeft="20dp"
             android:textSize="16sp"
             android:text="Start simple polling"/>
+
+        <Button
+            android:id="@+id/btn_start_increasingly_delayed_polling"
+            android:layout_height="wrap_content"
+            android:layout_width="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:textSize="16sp"
+            android:text="Start increasingly delayed polling"/>
     </LinearLayout>
 
     <ListView
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 06684990..4c20c795 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -11,7 +11,7 @@
     <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
-    <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background. \n\nExponential backoff polling: We start polling but in increasing time intervals depending on a provided condition.</string>
+    <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
 
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>

From 4d06add49b478064a1a13bac1253d088fad86f92 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 13:50:41 -0800
Subject: [PATCH 023/260] chore: upgradle gradle for Android Studio 1.0 updat

---
 Android-RxJava.iml                       |  4 +++-
 app/app.iml                              | 19 +++++++++++--------
 app/build.gradle                         | 15 ++++++++-------
 build.gradle                             |  2 +-
 gradle/wrapper/gradle-wrapper.properties |  4 ++--
 5 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/Android-RxJava.iml b/Android-RxJava.iml
index 0bb6048a..55503402 100644
--- a/Android-RxJava.iml
+++ b/Android-RxJava.iml
@@ -7,7 +7,9 @@
       </configuration>
     </facet>
   </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" inherit-compiler-output="false">
+    <output url="file://$MODULE_DIR$/build/classes/main" />
+    <output-test url="file://$MODULE_DIR$/build/classes/test" />
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/.gradle" />
diff --git a/app/app.iml b/app/app.iml
index 3306acd6..5f13451b 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -10,7 +10,7 @@
       <configuration>
         <option name="SELECTED_BUILD_VARIANT" value="debug" />
         <option name="ASSEMBLE_TASK_NAME" value="assembleDebug" />
-        <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugJava" />
+        <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugSources" />
         <option name="ASSEMBLE_TEST_TASK_NAME" value="assembleDebugTest" />
         <option name="SOURCE_GEN_TASK_NAME" value="generateDebugSources" />
         <option name="TEST_SOURCE_GEN_TASK_NAME" value="generateDebugTestSources" />
@@ -31,11 +31,13 @@
       <sourceFolder url="file://$MODULE_DIR$/build/generated/source/buildConfig/debug" isTestSource="false" generated="true" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/source/rs/debug" isTestSource="false" generated="true" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/debug" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/generated/debug" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/source/r/test/debug" isTestSource="true" generated="true" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/source/aidl/test/debug" isTestSource="true" generated="true" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/source/buildConfig/test/debug" isTestSource="true" generated="true" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/source/rs/test/debug" isTestSource="true" generated="true" />
       <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/test/debug" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/generated/test/debug" type="java-test-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/res" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/resources" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/debug/assets" type="java-resource" />
@@ -77,22 +79,23 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 19 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" name="timber-2.2.2" level="project" />
     <orderEntry type="library" exported="" name="okhttp-urlconnection-2.0.0" level="project" />
-    <orderEntry type="library" exported="" name="support-v13-20.0.0" level="project" />
     <orderEntry type="library" exported="" name="gson-2.2.4" level="project" />
+    <orderEntry type="library" exported="" name="support-v4-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="okio-1.0.0" level="project" />
-    <orderEntry type="library" exported="" name="support-v4-20.0.0" level="project" />
+    <orderEntry type="library" exported="" name="timber-2.4.2" level="project" />
+    <orderEntry type="library" exported="" name="support-v13-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="retrofit-1.6.1" level="project" />
+    <orderEntry type="library" exported="" name="support-annotations-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="guava-17.0" level="project" />
     <orderEntry type="library" exported="" name="butterknife-5.1.1" level="project" />
-    <orderEntry type="library" exported="" name="support-annotations-20.0.0" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-core-0.20.4" level="project" />
+    <orderEntry type="library" exported="" name="rxandroid-0.22.0" level="project" />
     <orderEntry type="library" exported="" name="okhttp-2.0.0" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-android-0.20.4" level="project" />
+    <orderEntry type="library" exported="" name="rxjava-1.0.0-rc.6" level="project" />
   </component>
 </module>
 
diff --git a/app/build.gradle b/app/build.gradle
index 2d319374..f34b8794 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,13 +1,14 @@
 apply plugin: 'com.android.application'
 
 dependencies {
-    compile 'com.android.support:support-v13:20.0.+'
+    compile  'com.android.support:support-v13:21.0.2'
 
     compile 'com.google.guava:guava:17.+'
 
     compile 'com.jakewharton:butterknife:5.1.1'
-    compile 'com.jakewharton.timber:timber:2.2.2'
-    compile 'com.netflix.rxjava:rxjava-android:0.20.4'
+    compile 'com.jakewharton.timber:timber:2.4.2'
+    compile 'io.reactivex:rxandroid:0.22.0'
+    //compile 'io.reactivex:rxjava-math:0.21.0'
 
     compile 'com.squareup.retrofit:retrofit:1.6.1'
     compile 'com.squareup.okhttp:okhttp:2.0.0'
@@ -16,19 +17,19 @@ dependencies {
 }
 
 android {
-    compileSdkVersion 19
-    buildToolsVersion '19.1.0'
+    compileSdkVersion 21
+    buildToolsVersion '21.1.2'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
         minSdkVersion 14
-        targetSdkVersion 19
+        targetSdkVersion 21
         versionCode 1
         versionName "1.0"
     }
     buildTypes {
         release {
-            runProguard false
+            minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
diff --git a/build.gradle b/build.gradle
index 7744ab79..b24a4434 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.12.+'
+        classpath 'com.android.tools.build:gradle:1.0.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 1e61d1fd..985d63d6 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Wed Dec 24 12:27:06 PST 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip

From 35939b8018a16e23b399a32de1bfabd3201bd51a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 14:20:35 -0800
Subject: [PATCH 024/260] feat: setup RxBus Demo fragments

---
 .../android/rxjava/MainFragment.java          | 10 ++++++
 .../rxjava/rxbus/RxBusDemoFragment.java       | 36 +++++++++++++++++++
 .../android/rxjava/rxbus/RxBusFrag1.java      | 23 ++++++++++++
 .../android/rxjava/rxbus/RxBusFrag2.java      | 23 ++++++++++++
 .../android/rxjava/rxbus/RxBusFrag3.java      | 23 ++++++++++++
 app/src/main/res/layout/fragment_main.xml     |  6 ++++
 .../main/res/layout/fragment_rxbus_demo.xml   | 33 +++++++++++++++++
 .../main/res/layout/fragment_rxbus_frag1.xml  | 11 ++++++
 .../main/res/layout/fragment_rxbus_frag2.xml  |  8 +++++
 .../main/res/layout/fragment_rxbus_frag3.xml  |  8 +++++
 app/src/main/res/values/colors.xml            |  6 ++++
 app/src/main/res/values/strings.xml           |  1 +
 12 files changed, 188 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
 create mode 100644 app/src/main/res/layout/fragment_rxbus_demo.xml
 create mode 100644 app/src/main/res/layout/fragment_rxbus_frag1.xml
 create mode 100644 app/src/main/res/layout/fragment_rxbus_frag2.xml
 create mode 100644 app/src/main/res/layout/fragment_rxbus_frag3.xml
 create mode 100644 app/src/main/res/values/colors.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 1598da77..ba7b8517 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -9,6 +9,7 @@
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
 public class MainFragment
     extends Fragment {
@@ -76,6 +77,15 @@ public void demoPolling() {
         .commit();
   }
 
+  @OnClick(R.id.btn_demo_rxbus)
+  public void demoRxBus() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString())
+        .commit();
+  }
+
   //@OnClick(R.id.btn_demo_subject_timeout)
   public void demoTimeout() {
     getActivity().getSupportFragmentManager()
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
new file mode 100644
index 00000000..8a41450e
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -0,0 +1,36 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.app.R;
+
+public class RxBusDemoFragment
+    extends Fragment {
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .replace(R.id.demo_rxbus_frag_1, new RxBusFrag1())
+        .replace(R.id.demo_rxbus_frag_2, new RxBusFrag2())
+        .replace(R.id.demo_rxbus_frag_3, new RxBusFrag3())
+        .commit();
+  }
+
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
new file mode 100644
index 00000000..29669374
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
@@ -0,0 +1,23 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.app.R;
+
+public class RxBusFrag1
+    extends Fragment {
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_frag1, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
new file mode 100644
index 00000000..14b73f9c
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -0,0 +1,23 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.app.R;
+
+public class RxBusFrag2
+    extends Fragment {
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_frag2, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
new file mode 100644
index 00000000..cabe6bae
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
@@ -0,0 +1,23 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.app.R;
+
+public class RxBusFrag3
+    extends Fragment {
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_frag3, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+}
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 8e66e952..eacafd6a 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -50,5 +50,11 @@
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_polling"/>
+
+        <Button
+            android:id="@+id/btn_demo_rxbus"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_rxbus"/>
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_rxbus_demo.xml b/app/src/main/res/layout/fragment_rxbus_demo.xml
new file mode 100644
index 00000000..44915554
--- /dev/null
+++ b/app/src/main/res/layout/fragment_rxbus_demo.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<RelativeLayout
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <LinearLayout
+        android:id="@+id/demo_rxbus_frag_12"
+        android:baselineAligned="false"
+        android:orientation="horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:minHeight="100dp">
+        <FrameLayout
+            android:id="@+id/demo_rxbus_frag_1"
+            android:layout_weight="1"
+            android:layout_height="match_parent"
+            android:layout_width="0dp"/>
+        <FrameLayout
+            android:id="@+id/demo_rxbus_frag_2"
+            android:layout_weight="1"
+            android:layout_height="match_parent"
+            android:layout_width="0dp"/>
+    </LinearLayout>
+
+
+    <FrameLayout
+        android:id="@+id/demo_rxbus_frag_3"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        android:layout_below="@id/demo_rxbus_frag_12"/>
+</RelativeLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_frag1.xml b/app/src/main/res/layout/fragment_rxbus_frag1.xml
new file mode 100644
index 00000000..f19b104e
--- /dev/null
+++ b/app/src/main/res/layout/fragment_rxbus_frag1.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    android:background="@color/green"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+
+
+
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_frag2.xml b/app/src/main/res/layout/fragment_rxbus_frag2.xml
new file mode 100644
index 00000000..320a1350
--- /dev/null
+++ b/app/src/main/res/layout/fragment_rxbus_frag2.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    android:background="@color/blue"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_frag3.xml b/app/src/main/res/layout/fragment_rxbus_frag3.xml
new file mode 100644
index 00000000..90cc0da8
--- /dev/null
+++ b/app/src/main/res/layout/fragment_rxbus_frag3.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    android:background="@color/red"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
new file mode 100644
index 00000000..caf6a7e8
--- /dev/null
+++ b/app/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="red">#eb676b</color>
+    <color name="blue">#488cef</color>
+    <color name="green">#3bc4a2</color>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 4c20c795..23c749a8 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -20,4 +20,5 @@
     <string name="btn_demo_retrofit">Retrofit + RxJava</string>
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
     <string name="btn_demo_polling">Polling with RxJava</string>
+    <string name="btn_demo_rxbus">Event Bus with RxJava</string>
 </resources>

From 6ee420d4163bf07f650867f575d0dee12b606320 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 14:38:09 -0800
Subject: [PATCH 025/260] feat: add ui components of RxBusdemo

---
 .../android/rxjava/MainActivity.java          |  4 +++-
 app/src/main/res/drawable/btn_round.xml       |  9 +++++++++
 .../main/res/layout/fragment_rxbus_demo.xml   |  2 +-
 .../main/res/layout/fragment_rxbus_frag1.xml  | 19 +++++++++++++++++++
 .../main/res/layout/fragment_rxbus_frag2.xml  | 10 +++++++++-
 .../main/res/layout/fragment_rxbus_frag3.xml  |  6 +++++-
 app/src/main/res/values/dimens.xml            |  9 +++++++++
 app/src/main/res/values/strings.xml           | 19 +++++++++++--------
 8 files changed, 66 insertions(+), 12 deletions(-)
 create mode 100644 app/src/main/res/drawable/btn_round.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 26ac2fa7..558ef948 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -3,6 +3,7 @@
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 import timber.log.Timber;
 
 public class MainActivity
@@ -16,7 +17,8 @@ protected void onCreate(Bundle savedInstanceState) {
     Timber.plant(new Timber.DebugTree());
 
     getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
-        .replace(R.id.activity_main, new MainFragment(), this.toString())
+        //.replace(R.id.activity_main, new MainFragment(), this.toString())
+        .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString())
         .commit();
   }
 }
diff --git a/app/src/main/res/drawable/btn_round.xml b/app/src/main/res/drawable/btn_round.xml
new file mode 100644
index 00000000..ac7ba8f8
--- /dev/null
+++ b/app/src/main/res/drawable/btn_round.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="rectangle">
+    <solid android:color="@color/red" />
+    <corners android:bottomRightRadius="100dp"
+             android:bottomLeftRadius="100dp"
+             android:topRightRadius="100dp"
+             android:topLeftRadius="100dp"/>
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_demo.xml b/app/src/main/res/layout/fragment_rxbus_demo.xml
index 44915554..08b235dd 100644
--- a/app/src/main/res/layout/fragment_rxbus_demo.xml
+++ b/app/src/main/res/layout/fragment_rxbus_demo.xml
@@ -11,7 +11,7 @@
         android:orientation="horizontal"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        android:minHeight="100dp">
+        android:minHeight="220dp">
         <FrameLayout
             android:id="@+id/demo_rxbus_frag_1"
             android:layout_weight="1"
diff --git a/app/src/main/res/layout/fragment_rxbus_frag1.xml b/app/src/main/res/layout/fragment_rxbus_frag1.xml
index f19b104e..e4da8093 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag1.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag1.xml
@@ -5,7 +5,26 @@
     android:layout_width="match_parent"
     xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <TextView
+        android:layout_gravity="center_horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:gravity="center"
+        android:text="@string/msg_demo_rxbus_1"/>
 
+    <Button
+        android:background="@drawable/btn_round"
+        android:layout_height="90dp"
+        android:layout_width="90dp"
+        android:textColor="@android:color/white"
+        android:layout_gravity="center"
+        android:textSize="@dimen/text_xlarge"
+        android:text="Tap"/>
 
+    <TextView
+        android:layout_gravity="center_horizontal|bottom"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+            android:text="@string/msg_demo_rxbus_2"/>
 
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_frag2.xml b/app/src/main/res/layout/fragment_rxbus_frag2.xml
index 320a1350..ee08e344 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag2.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag2.xml
@@ -1,8 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout
-    android:background="@color/blue"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
+    android:background="@color/blue"
     xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <TextView
+        android:id="@+id/demo_rxbus_tap_count"
+        android:layout_gravity="center"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:textSize="@dimen/text_xxlarge"
+        android:textColor="@android:color/white"
+        android:text="1"/>
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_frag3.xml b/app/src/main/res/layout/fragment_rxbus_frag3.xml
index 90cc0da8..29f8c8b6 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag3.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag3.xml
@@ -1,8 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout
-    android:background="@color/red"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
     xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"/>
+
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 47c82246..1fcc661d 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -2,4 +2,13 @@
     <!-- Default screen margins, per the Android Design guidelines. -->
     <dimen name="activity_horizontal_margin">16dp</dimen>
     <dimen name="activity_vertical_margin">16dp</dimen>
+
+    <dimen name="text_micro">10sp</dimen>
+    <dimen name="text_small">12sp</dimen>
+    <dimen name="text_medium">14sp</dimen>
+    <dimen name="text_regular">16sp</dimen>
+    <dimen name="text_large">20sp</dimen>
+    <dimen name="text_xlarge">24sp</dimen>
+    <dimen name="text_xxlarge">60sp</dimen>
+
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 23c749a8..f3128d86 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -5,14 +5,6 @@
     <string name="hello_world">Hello world!</string>
     <string name="action_settings">Settings</string>
 
-    <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
-    <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
-    <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
-    <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
-    <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
-    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
-    <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
-
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
     <string name="btn_demo_subject_debounce">search text listener(subject debouncing)</string>
@@ -21,4 +13,15 @@
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
     <string name="btn_demo_polling">Polling with RxJava</string>
     <string name="btn_demo_rxbus">Event Bus with RxJava</string>
+
+    <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
+    <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
+    <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
+    <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
+    <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
+    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
+    <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
+
+    <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
+    <string name="msg_demo_rxbus_2">Tap anywhere outside for \'dead events\'</string>
 </resources>

From 77a8537862b96674efcc09f90f5aa049bbeaf916 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 15:03:22 -0800
Subject: [PATCH 026/260] feat: add RxBus and singleton instantiation in all
 fragments

---
 .../android/rxjava/MainActivity.java          | 15 +++++++++--
 .../morihacky/android/rxjava/rxbus/RxBus.java | 27 +++++++++++++++++++
 .../android/rxjava/rxbus/RxBusFrag1.java      |  9 +++++++
 .../android/rxjava/rxbus/RxBusFrag2.java      |  9 +++++++
 .../android/rxjava/rxbus/RxBusFrag3.java      |  9 +++++++
 5 files changed, 67 insertions(+), 2 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 558ef948..7b7e5462 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -3,12 +3,15 @@
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.rxbus.RxBus;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 import timber.log.Timber;
 
 public class MainActivity
     extends FragmentActivity {
 
+  private RxBus _rxBus = null;
+
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
@@ -18,7 +21,15 @@ protected void onCreate(Bundle savedInstanceState) {
 
     getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
         //.replace(R.id.activity_main, new MainFragment(), this.toString())
-        .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString())
-        .commit();
+        .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString()).commit();
+  }
+
+  // This is better done with a DI Library like Dagger
+  public RxBus getRxBusSingleton() {
+    if (_rxBus == null) {
+      _rxBus = new RxBus();
+    }
+
+    return _rxBus;
   }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
new file mode 100644
index 00000000..e6dcb511
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -0,0 +1,27 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import rx.Observable;
+import rx.subjects.PublishSubject;
+import rx.subjects.SerializedSubject;
+import rx.subjects.Subject;
+
+/**
+ * courtesy: https://gist.github.com/benjchristensen/04eef9ca0851f3a5d7bf
+ */
+public class RxBus {
+
+  //private final PublishSubject<Object> _bus = PublishSubject.create();
+
+  // If multiple threads are going to emit events to this
+  // then it must be made thread-safe like this instead
+  private final Subject<Object, Object> _bus = new SerializedSubject<>(PublishSubject.create());
+
+  public void send(Object o) {
+    _bus.onNext(o);
+  }
+
+  public Observable<Object> toObserverable() {
+    return _bus;
+  }
+}
+
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
index 29669374..7521dd08 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
@@ -7,11 +7,14 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusFrag1
     extends Fragment {
 
+  private RxBus _rxBus;
+
   @Override
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
@@ -20,4 +23,10 @@ public View onCreateView(LayoutInflater inflater,
     ButterKnife.inject(this, layout);
     return layout;
   }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
index 14b73f9c..8cb19b53 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -7,11 +7,14 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusFrag2
     extends Fragment {
 
+  private RxBus _rxBus;
+
   @Override
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
@@ -20,4 +23,10 @@ public View onCreateView(LayoutInflater inflater,
     ButterKnife.inject(this, layout);
     return layout;
   }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
index cabe6bae..37cd7e50 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
@@ -7,11 +7,14 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusFrag3
     extends Fragment {
 
+  private RxBus _rxBus;
+
   @Override
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
@@ -20,4 +23,10 @@ public View onCreateView(LayoutInflater inflater,
     ButterKnife.inject(this, layout);
     return layout;
   }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
 }

From 3e0ec1b2701fa98f52acee5ed2cbf96d57908d8c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 15:30:25 -0800
Subject: [PATCH 027/260] feat: using RxBus listen to taps and show the tap
 text event

---
 .../android/rxjava/rxbus/RxBusFrag1.java      |  8 ++++
 .../android/rxjava/rxbus/RxBusFrag2.java      | 48 +++++++++++++++++++
 .../main/res/layout/fragment_rxbus_frag1.xml  |  1 +
 .../main/res/layout/fragment_rxbus_frag2.xml  | 12 ++++-
 4 files changed, 68 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
index 7521dd08..c224db3f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
@@ -7,6 +7,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
@@ -29,4 +30,11 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     super.onActivityCreated(savedInstanceState);
     _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
   }
+
+  @OnClick(R.id.btn_demo_rxbus_tap)
+  public void onTapButtonClicked() {
+    _rxBus.send(new TapEvent());
+  }
+
+  public static class TapEvent {}
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
index 8cb19b53..5012078d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -3,17 +3,28 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.support.v4.view.ViewCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 import butterknife.ButterKnife;
+import butterknife.InjectView;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
+import rx.Subscription;
+import rx.android.observables.AndroidObservable;
+import rx.functions.Action1;
+
+import static com.morihacky.android.rxjava.rxbus.RxBusFrag1.TapEvent;
 
 public class RxBusFrag2
     extends Fragment {
 
   private RxBus _rxBus;
+  private Subscription _subscription;
+
+  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
 
   @Override
   public View onCreateView(LayoutInflater inflater,
@@ -29,4 +40,41 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     super.onActivityCreated(savedInstanceState);
     _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
   }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    AndroidObservable.bindFragment(this, _rxBus.toObserverable()).subscribe(new Action1<Object>() {
+      @Override
+      public void call(Object event) {
+        if (event instanceof TapEvent) {
+          _showTapText();
+        }
+      }
+    });
+  }
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setScaleX(1f);
+    _tapEventTxtShow.setScaleY(1f);
+
+    ViewCompat.animate(_tapEventTxtShow)
+        .scaleX(0f)
+        .scaleY(0f)
+        .setDuration(400)
+        /*.withEndAction(new Runnable() {
+          @Override
+          public void run() {
+            _tapEventTxtShow.setVisibility(View.INVISIBLE);
+            _tapEventTxtShow.setAlpha(1f);
+          }
+        })*/;
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _subscription.unsubscribe();
+  }
 }
diff --git a/app/src/main/res/layout/fragment_rxbus_frag1.xml b/app/src/main/res/layout/fragment_rxbus_frag1.xml
index e4da8093..6d1fa65d 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag1.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag1.xml
@@ -13,6 +13,7 @@
         android:text="@string/msg_demo_rxbus_1"/>
 
     <Button
+        android:id="@+id/btn_demo_rxbus_tap"
         android:background="@drawable/btn_round"
         android:layout_height="90dp"
         android:layout_width="90dp"
diff --git a/app/src/main/res/layout/fragment_rxbus_frag2.xml b/app/src/main/res/layout/fragment_rxbus_frag2.xml
index ee08e344..7594d4db 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag2.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag2.xml
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout
+    android:background="@color/blue"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    android:background="@color/blue"
     xmlns:android="http://schemas.android.com/apk/res/android">
 
     <TextView
@@ -13,4 +13,14 @@
         android:textSize="@dimen/text_xxlarge"
         android:textColor="@android:color/white"
         android:text="1"/>
+
+    <TextView
+        android:id="@+id/demo_rxbus_tap_txt"
+        android:visibility="invisible"
+        android:layout_gravity="bottom|center_horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        android:textColor="@android:color/white"
+        android:text="tap!"/>
 </FrameLayout>
\ No newline at end of file

From 92c74b8ddc8d8591c34027a46c23a44016a1f626 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 15:56:26 -0800
Subject: [PATCH 028/260] fix: change tap text animation to simple alpha vs
 scaling

---
 .../android/rxjava/rxbus/RxBusFrag2.java         | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
index 5012078d..39ff3934 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -56,20 +56,8 @@ public void call(Object event) {
 
   private void _showTapText() {
     _tapEventTxtShow.setVisibility(View.VISIBLE);
-    _tapEventTxtShow.setScaleX(1f);
-    _tapEventTxtShow.setScaleY(1f);
-
-    ViewCompat.animate(_tapEventTxtShow)
-        .scaleX(0f)
-        .scaleY(0f)
-        .setDuration(400)
-        /*.withEndAction(new Runnable() {
-          @Override
-          public void run() {
-            _tapEventTxtShow.setVisibility(View.INVISIBLE);
-            _tapEventTxtShow.setAlpha(1f);
-          }
-        })*/;
+    _tapEventTxtShow.setAlpha(1f);
+    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
   }
 
   @Override

From 7aba29933c11181fa6475b6166872278ecaecfc1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 16:04:59 -0800
Subject: [PATCH 029/260] fix: assign subscription from AndroidObservable

---
 .../android/rxjava/rxbus/RxBusFrag2.java      | 27 ++++++++++++-------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
index 39ff3934..a11922eb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -12,9 +12,11 @@
 import butterknife.InjectView;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
+import java.util.concurrent.TimeUnit;
 import rx.Subscription;
 import rx.android.observables.AndroidObservable;
 import rx.functions.Action1;
+import rx.schedulers.Schedulers;
 
 import static com.morihacky.android.rxjava.rxbus.RxBusFrag1.TapEvent;
 
@@ -22,7 +24,7 @@ public class RxBusFrag2
     extends Fragment {
 
   private RxBus _rxBus;
-  private Subscription _subscription;
+  private Subscription _subscription1_tapListen;
 
   @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
 
@@ -44,14 +46,19 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
   @Override
   public void onStart() {
     super.onStart();
-    AndroidObservable.bindFragment(this, _rxBus.toObserverable()).subscribe(new Action1<Object>() {
-      @Override
-      public void call(Object event) {
-        if (event instanceof TapEvent) {
-          _showTapText();
-        }
-      }
-    });
+
+    _subscription1_tapListen = AndroidObservable.bindFragment(this, _rxBus.toObserverable())
+        .subscribe(new Action1<Object>() {
+          @Override
+          public void call(Object event) {
+            if (event instanceof TapEvent) {
+              _showTapText();
+            }
+          }
+        });
+
+    _rxBus.toObserverable().debounce(400, TimeUnit.MILLISECONDS, Schedulers.io()).subscribe();
+
   }
 
   private void _showTapText() {
@@ -63,6 +70,6 @@ private void _showTapText() {
   @Override
   public void onStop() {
     super.onStop();
-    _subscription.unsubscribe();
+    _subscription1_tapListen.unsubscribe();
   }
 }

From 6fceaf07301606631fb83be33d22880d4c248c38 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 22:16:38 -0800
Subject: [PATCH 030/260] feat: crude implementation of RxBus - uses buffer
 with tweaked settings

---
 .../android/rxjava/rxbus/RxBusFrag1.java      |  1 +
 .../android/rxjava/rxbus/RxBusFrag2.java      | 31 +++++++++++++++++--
 .../main/res/layout/fragment_rxbus_frag2.xml  |  1 +
 3 files changed, 30 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
index c224db3f..bcdc5409 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
@@ -34,6 +34,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
   @OnClick(R.id.btn_demo_rxbus_tap)
   public void onTapButtonClicked() {
     _rxBus.send(new TapEvent());
+
   }
 
   public static class TapEvent {}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
index a11922eb..2af7a47f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -12,11 +12,13 @@
 import butterknife.InjectView;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
+import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Subscription;
 import rx.android.observables.AndroidObservable;
+import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Action1;
-import rx.schedulers.Schedulers;
+import rx.functions.Func1;
 
 import static com.morihacky.android.rxjava.rxbus.RxBusFrag1.TapEvent;
 
@@ -25,8 +27,10 @@ public class RxBusFrag2
 
   private RxBus _rxBus;
   private Subscription _subscription1_tapListen;
+  private Subscription _subscription2_tapCollector;
 
   @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+  @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
 
   @Override
   public View onCreateView(LayoutInflater inflater,
@@ -57,8 +61,17 @@ public void call(Object event) {
           }
         });
 
-    _rxBus.toObserverable().debounce(400, TimeUnit.MILLISECONDS, Schedulers.io()).subscribe();
-
+    _rxBus.toObserverable().buffer(1, TimeUnit.SECONDS).filter(new Func1<List<Object>, Boolean>() {
+      @Override
+      public Boolean call(List<Object> objects) {
+        return objects != null && objects.size() > 0;
+      }
+    }).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<List<Object>>() {
+      @Override
+      public void call(List<Object> taps) {
+        _showTapCount(taps.size());
+      }
+    });
   }
 
   private void _showTapText() {
@@ -67,6 +80,18 @@ private void _showTapText() {
     ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
   }
 
+  private void _showTapCount(int size) {
+    _tapEventCountShow.setText(String.valueOf(size));
+    _tapEventCountShow.setVisibility(View.VISIBLE);
+    _tapEventCountShow.setScaleX(1f);
+    _tapEventCountShow.setScaleY(1f);
+    ViewCompat.animate(_tapEventCountShow)
+        .scaleXBy(-1f)
+        .scaleYBy(-1f)
+        .setDuration(400)
+        .setStartDelay(100);
+  }
+
   @Override
   public void onStop() {
     super.onStop();
diff --git a/app/src/main/res/layout/fragment_rxbus_frag2.xml b/app/src/main/res/layout/fragment_rxbus_frag2.xml
index 7594d4db..d4b73339 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag2.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag2.xml
@@ -7,6 +7,7 @@
 
     <TextView
         android:id="@+id/demo_rxbus_tap_count"
+        android:visibility="invisible"
         android:layout_gravity="center"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"

From 726a60f0c889a95c5b47882e1c6c5a1137e21b86 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 Dec 2014 23:34:29 -0800
Subject: [PATCH 031/260] fix: use a debounced Buffer

---
 .../android/rxjava/rxbus/RxBusFrag2.java      | 39 ++++++++++---------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
index 2af7a47f..886a4b12 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
@@ -14,11 +14,11 @@
 import com.morihacky.android.rxjava.app.R;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+import rx.Observable;
 import rx.Subscription;
 import rx.android.observables.AndroidObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Action1;
-import rx.functions.Func1;
 
 import static com.morihacky.android.rxjava.rxbus.RxBusFrag1.TapEvent;
 
@@ -51,27 +51,28 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
   public void onStart() {
     super.onStart();
 
-    _subscription1_tapListen = AndroidObservable.bindFragment(this, _rxBus.toObserverable())
-        .subscribe(new Action1<Object>() {
+    // .share = publish + refcount
+    Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
+
+    _subscription1_tapListen = AndroidObservable.bindFragment(this, tapEventEmitter)
+             .subscribe(new Action1<Object>() {
+               @Override
+               public void call(Object event) {
+                 if (event instanceof TapEvent) {
+                   _showTapText();
+                 }
+               }
+             });
+
+    Observable<Object> debouncedEventEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
+    tapEventEmitter.buffer(debouncedEventEmitter)
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(new Action1<List<Object>>() {
           @Override
-          public void call(Object event) {
-            if (event instanceof TapEvent) {
-              _showTapText();
-            }
+          public void call(List<Object> taps) {
+            _showTapCount(taps.size());
           }
         });
-
-    _rxBus.toObserverable().buffer(1, TimeUnit.SECONDS).filter(new Func1<List<Object>, Boolean>() {
-      @Override
-      public Boolean call(List<Object> objects) {
-        return objects != null && objects.size() > 0;
-      }
-    }).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<List<Object>>() {
-      @Override
-      public void call(List<Object> taps) {
-        _showTapCount(taps.size());
-      }
-    });
   }
 
   private void _showTapText() {

From 7d4ad73686e1fc733c064bf21852ad3788f7b52e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 01:15:58 -0800
Subject: [PATCH 032/260] feat: check for dead event condition before sending
 out bus events - hasObservers

---
 app/app.iml                                                  | 4 ++--
 app/build.gradle                                             | 2 +-
 .../main/java/com/morihacky/android/rxjava/rxbus/RxBus.java  | 5 ++++-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/app.iml b/app/app.iml
index 5f13451b..53174074 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -85,17 +85,17 @@
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" exported="" name="okhttp-urlconnection-2.0.0" level="project" />
     <orderEntry type="library" exported="" name="gson-2.2.4" level="project" />
+    <orderEntry type="library" exported="" name="rxandroid-0.23.0" level="project" />
     <orderEntry type="library" exported="" name="support-v4-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="okio-1.0.0" level="project" />
     <orderEntry type="library" exported="" name="timber-2.4.2" level="project" />
+    <orderEntry type="library" exported="" name="rxjava-1.0.0-rc.9" level="project" />
     <orderEntry type="library" exported="" name="support-v13-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="retrofit-1.6.1" level="project" />
     <orderEntry type="library" exported="" name="support-annotations-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="guava-17.0" level="project" />
     <orderEntry type="library" exported="" name="butterknife-5.1.1" level="project" />
-    <orderEntry type="library" exported="" name="rxandroid-0.22.0" level="project" />
     <orderEntry type="library" exported="" name="okhttp-2.0.0" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-1.0.0-rc.6" level="project" />
   </component>
 </module>
 
diff --git a/app/build.gradle b/app/build.gradle
index f34b8794..79f8a4ca 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ dependencies {
 
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'io.reactivex:rxandroid:0.22.0'
+    compile 'io.reactivex:rxandroid:0.23.0'
     //compile 'io.reactivex:rxjava-math:0.21.0'
 
     compile 'com.squareup.retrofit:retrofit:1.6.1'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index e6dcb511..afaa595c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -23,5 +23,8 @@ public void send(Object o) {
   public Observable<Object> toObserverable() {
     return _bus;
   }
-}
 
+  public boolean hasObservers() {
+    return _bus.hasObservers();
+  }
+}
\ No newline at end of file

From aa3e7e08b205a9bd7df459bf6e4d11f5bbb3d287 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 01:16:19 -0800
Subject: [PATCH 033/260] refactor: move fragments/classes to make structure
 simpler

---
 .../rxjava/rxbus/RxBusDemoFragment.java       |  7 +-
 ...ava => RxBusDemo_BottomFANCYFragment.java} | 70 +++++++++---------
 .../rxbus/RxBusDemo_BottomFragment.java       | 71 +++++++++++++++++++
 ...sFrag1.java => RxBusDemo_TopFragment.java} | 11 ++-
 .../android/rxjava/rxbus/RxBusFrag3.java      | 32 ---------
 ...us_frag2.xml => fragment_rxbus_bottom.xml} |  0
 .../main/res/layout/fragment_rxbus_demo.xml   | 41 +++++------
 ...rxbus_frag1.xml => fragment_rxbus_top.xml} |  0
 8 files changed, 133 insertions(+), 99 deletions(-)
 rename app/src/main/java/com/morihacky/android/rxjava/rxbus/{RxBusFrag2.java => RxBusDemo_BottomFANCYFragment.java} (58%)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java
 rename app/src/main/java/com/morihacky/android/rxjava/rxbus/{RxBusFrag1.java => RxBusDemo_TopFragment.java} (82%)
 delete mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
 rename app/src/main/res/layout/{fragment_rxbus_frag2.xml => fragment_rxbus_bottom.xml} (100%)
 rename app/src/main/res/layout/{fragment_rxbus_frag1.xml => fragment_rxbus_top.xml} (100%)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index 8a41450e..7c4ead83 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -27,10 +27,11 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 
     getActivity().getSupportFragmentManager()
         .beginTransaction()
-        .replace(R.id.demo_rxbus_frag_1, new RxBusFrag1())
-        .replace(R.id.demo_rxbus_frag_2, new RxBusFrag2())
-        .replace(R.id.demo_rxbus_frag_3, new RxBusFrag3())
+        .replace(R.id.demo_rxbus_frag_1, new RxBusDemo_TopFragment())
+        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFragment())
+        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFANCYFragment())
         .commit();
   }
 
+  public static class TapEvent {}
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFANCYFragment.java
similarity index 58%
rename from app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
rename to app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFANCYFragment.java
index 886a4b12..9d2d6f59 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag2.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFANCYFragment.java
@@ -15,19 +15,17 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
-import rx.Subscription;
-import rx.android.observables.AndroidObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Action1;
+import rx.subscriptions.CompositeSubscription;
 
-import static com.morihacky.android.rxjava.rxbus.RxBusFrag1.TapEvent;
+import static rx.android.observables.AndroidObservable.bindFragment;
 
-public class RxBusFrag2
+public class RxBusDemo_BottomFANCYFragment
     extends Fragment {
 
   private RxBus _rxBus;
-  private Subscription _subscription1_tapListen;
-  private Subscription _subscription2_tapCollector;
+  private CompositeSubscription _subscriptions;
 
   @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
   @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
@@ -36,7 +34,7 @@ public class RxBusFrag2
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
                            @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_frag2, container, false);
+    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
     ButterKnife.inject(this, layout);
     return layout;
   }
@@ -50,31 +48,43 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
   @Override
   public void onStart() {
     super.onStart();
+    _subscriptions = new CompositeSubscription();
 
-    // .share = publish + refcount
     Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
+    Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
+    Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
 
-    _subscription1_tapListen = AndroidObservable.bindFragment(this, tapEventEmitter)
-             .subscribe(new Action1<Object>() {
-               @Override
-               public void call(Object event) {
-                 if (event instanceof TapEvent) {
-                   _showTapText();
-                 }
-               }
-             });
+    _subscriptions//
+        .add(bindFragment(this, tapEventEmitter)//
+                 .subscribe(new Action1<Object>() {
+                   @Override
+                   public void call(Object event) {
+                     if (event instanceof RxBusDemoFragment.TapEvent) {
+                       _showTapText();
+                     }
+                   }
+                 }));
 
-    Observable<Object> debouncedEventEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
-    tapEventEmitter.buffer(debouncedEventEmitter)
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(new Action1<List<Object>>() {
-          @Override
-          public void call(List<Object> taps) {
-            _showTapCount(taps.size());
-          }
-        });
+    _subscriptions//
+        .add(debouncedBufferEmitter//
+                 .observeOn(AndroidSchedulers.mainThread())//
+                 .subscribe(new Action1<List<Object>>() {
+                   @Override
+                   public void call(List<Object> taps) {
+                     _showTapCount(taps.size());
+                   }
+                 }));
   }
 
+  @Override
+  public void onStop() {
+    super.onStop();
+    _subscriptions.unsubscribe();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Helper to show the text via an animation
+
   private void _showTapText() {
     _tapEventTxtShow.setVisibility(View.VISIBLE);
     _tapEventTxtShow.setAlpha(1f);
@@ -89,13 +99,7 @@ private void _showTapCount(int size) {
     ViewCompat.animate(_tapEventCountShow)
         .scaleXBy(-1f)
         .scaleYBy(-1f)
-        .setDuration(400)
+        .setDuration(800)
         .setStartDelay(100);
   }
-
-  @Override
-  public void onStop() {
-    super.onStop();
-    _subscription1_tapListen.unsubscribe();
-  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java
new file mode 100644
index 00000000..04fbc3b1
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java
@@ -0,0 +1,71 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.view.ViewCompat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import com.morihacky.android.rxjava.MainActivity;
+import com.morihacky.android.rxjava.app.R;
+import rx.functions.Action1;
+import rx.subscriptions.CompositeSubscription;
+
+import static rx.android.observables.AndroidObservable.bindFragment;
+
+public class RxBusDemo_BottomFragment
+    extends Fragment {
+
+  private RxBus _rxBus;
+  private CompositeSubscription _subscriptions;
+
+  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    _subscriptions = new CompositeSubscription();
+
+    _subscriptions//
+        .add(bindFragment(this, _rxBus.toObserverable())//
+                 .subscribe(new Action1<Object>() {
+                   @Override
+                   public void call(Object event) {
+                     if (event instanceof RxBusDemoFragment.TapEvent) {
+                       _showTapText();
+                     }
+                   }
+                 }));
+  }
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setAlpha(1f);
+    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _subscriptions.unsubscribe();
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
similarity index 82%
rename from app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
rename to app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index bcdc5409..53a70434 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag1.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -11,7 +11,7 @@
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
-public class RxBusFrag1
+public class RxBusDemo_TopFragment
     extends Fragment {
 
   private RxBus _rxBus;
@@ -20,7 +20,7 @@ public class RxBusFrag1
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
                            @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_frag1, container, false);
+    View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
     ButterKnife.inject(this, layout);
     return layout;
   }
@@ -33,9 +33,8 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 
   @OnClick(R.id.btn_demo_rxbus_tap)
   public void onTapButtonClicked() {
-    _rxBus.send(new TapEvent());
-
+    if (_rxBus.hasObservers()) {
+      _rxBus.send(new RxBusDemoFragment.TapEvent());
+    }
   }
-
-  public static class TapEvent {}
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
deleted file mode 100644
index 37cd7e50..00000000
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusFrag3.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.morihacky.android.rxjava.rxbus;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import butterknife.ButterKnife;
-import com.morihacky.android.rxjava.MainActivity;
-import com.morihacky.android.rxjava.app.R;
-
-public class RxBusFrag3
-    extends Fragment {
-
-  private RxBus _rxBus;
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_frag3, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-  }
-}
diff --git a/app/src/main/res/layout/fragment_rxbus_frag2.xml b/app/src/main/res/layout/fragment_rxbus_bottom.xml
similarity index 100%
rename from app/src/main/res/layout/fragment_rxbus_frag2.xml
rename to app/src/main/res/layout/fragment_rxbus_bottom.xml
diff --git a/app/src/main/res/layout/fragment_rxbus_demo.xml b/app/src/main/res/layout/fragment_rxbus_demo.xml
index 08b235dd..7e1d74c1 100644
--- a/app/src/main/res/layout/fragment_rxbus_demo.xml
+++ b/app/src/main/res/layout/fragment_rxbus_demo.xml
@@ -1,33 +1,24 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<RelativeLayout
+<LinearLayout
+    android:id="@+id/demo_rxbus_frag_12"
+    android:baselineAligned="false"
+    android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
+    android:minHeight="220dp"
     xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <LinearLayout
-        android:id="@+id/demo_rxbus_frag_12"
-        android:baselineAligned="false"
-        android:orientation="horizontal"
-        android:layout_height="wrap_content"
-        android:layout_width="match_parent"
-        android:minHeight="220dp">
-        <FrameLayout
-            android:id="@+id/demo_rxbus_frag_1"
-            android:layout_weight="1"
-            android:layout_height="match_parent"
-            android:layout_width="0dp"/>
-        <FrameLayout
-            android:id="@+id/demo_rxbus_frag_2"
-            android:layout_weight="1"
-            android:layout_height="match_parent"
-            android:layout_width="0dp"/>
-    </LinearLayout>
-
+    <FrameLayout
+        android:id="@+id/demo_rxbus_frag_1"
+        android:layout_weight="1"
+        android:layout_height="0dp"
+        android:layout_width="match_parent"/>
 
     <FrameLayout
-        android:id="@+id/demo_rxbus_frag_3"
-        android:layout_height="match_parent"
-        android:layout_width="match_parent"
-        android:layout_below="@id/demo_rxbus_frag_12"/>
-</RelativeLayout>
\ No newline at end of file
+        android:id="@+id/demo_rxbus_frag_2"
+        android:layout_weight="1"
+        android:layout_height="0dp"
+        android:layout_width="match_parent"/>
+
+</LinearLayout>
diff --git a/app/src/main/res/layout/fragment_rxbus_frag1.xml b/app/src/main/res/layout/fragment_rxbus_top.xml
similarity index 100%
rename from app/src/main/res/layout/fragment_rxbus_frag1.xml
rename to app/src/main/res/layout/fragment_rxbus_top.xml

From 385e6657e36009043cc82b7e6e2bce84a82216cc Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 01:17:17 -0800
Subject: [PATCH 034/260] fix: remove direct lauching to Bus demo for dev

---
 .../java/com/morihacky/android/rxjava/MainActivity.java   | 8 ++++----
 .../morihacky/android/rxjava/rxbus/RxBusDemoFragment.java | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 7b7e5462..07204647 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -4,7 +4,6 @@
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.app.R;
 import com.morihacky.android.rxjava.rxbus.RxBus;
-import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 import timber.log.Timber;
 
 public class MainActivity
@@ -19,9 +18,10 @@ protected void onCreate(Bundle savedInstanceState) {
 
     Timber.plant(new Timber.DebugTree());
 
-    getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
-        //.replace(R.id.activity_main, new MainFragment(), this.toString())
-        .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString()).commit();
+    getSupportFragmentManager().beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new MainFragment(), this.toString())
+        .commit();
   }
 
   // This is better done with a DI Library like Dagger
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index 7c4ead83..e84a7086 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -28,8 +28,8 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     getActivity().getSupportFragmentManager()
         .beginTransaction()
         .replace(R.id.demo_rxbus_frag_1, new RxBusDemo_TopFragment())
-        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFragment())
-        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFANCYFragment())
+        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFragment())
+        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFANCYFragment())
         .commit();
   }
 

From a228658b0912c781c2c199d9688ed6de5ebf7e21 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 01:18:15 -0800
Subject: [PATCH 035/260] fix: change tap text size

---
 app/src/main/res/layout/fragment_rxbus_bottom.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/res/layout/fragment_rxbus_bottom.xml b/app/src/main/res/layout/fragment_rxbus_bottom.xml
index d4b73339..e155c8c3 100644
--- a/app/src/main/res/layout/fragment_rxbus_bottom.xml
+++ b/app/src/main/res/layout/fragment_rxbus_bottom.xml
@@ -22,6 +22,7 @@
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:paddingBottom="@dimen/activity_vertical_margin"
+        android:textSize="@dimen/text_large"
         android:textColor="@android:color/white"
         android:text="tap!"/>
 </FrameLayout>
\ No newline at end of file

From 11744c9e2c854c62b37248fe034bdf8c649aa81f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 02:01:32 -0800
Subject: [PATCH 036/260] feat: added RxBus example

---
 README.md | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 649db72e..45136c06 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,14 @@ While the example here is pretty rudimentary, the technique used to achieve the
 
 This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
 
+### RxBus - An event bus using RxJAva
+
+Have a look at the accompanying blog posts for details on this demo:
+
+1. [Implementing an event bus with RxJava](http://nerds.weddingpartyapp.com/tech/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
+2. [DebouncedBuffer used for the fancier variant of the demo](http://nerds.weddingpartyapp.com/tech/2014/12/24/secret-bonus-part-debouncedbuffer-used-in-rxbus-example/)
+3. [share/publish/refcount](http://nerds.weddingpartyapp.com/tech/2014/12/24/rxjava-share-publish-refcount-and-all-that-jazz/)
+
 
 ## Work in Progress:
 
@@ -77,10 +85,6 @@ Examples that I would like to have here, but haven't found the time yet to flush
 a. Simple pagination
 b. Optimized pagination
 
-### Event Bus with RxJAva (wip)
-
-http://stackoverflow.com/questions/19266834/rxjava-and-random-sporadic-events-on-android
-
 
 ## Contributing:
 

From 01ee20e9d61ecb5a1a8c061ac54286c84cd0b53b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 02:08:15 -0800
Subject: [PATCH 037/260] fix: remove unnecessary tx

---
 app/src/main/res/layout/fragment_rxbus_top.xml | 10 ++--------
 app/src/main/res/values/strings.xml            |  2 --
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/app/src/main/res/layout/fragment_rxbus_top.xml b/app/src/main/res/layout/fragment_rxbus_top.xml
index 6d1fa65d..16352181 100644
--- a/app/src/main/res/layout/fragment_rxbus_top.xml
+++ b/app/src/main/res/layout/fragment_rxbus_top.xml
@@ -15,17 +15,11 @@
     <Button
         android:id="@+id/btn_demo_rxbus_tap"
         android:background="@drawable/btn_round"
+        android:layout_gravity="center"
         android:layout_height="90dp"
         android:layout_width="90dp"
-        android:textColor="@android:color/white"
-        android:layout_gravity="center"
         android:textSize="@dimen/text_xlarge"
+        android:textColor="@android:color/white"
         android:text="Tap"/>
 
-    <TextView
-        android:layout_gravity="center_horizontal|bottom"
-        android:layout_height="wrap_content"
-        android:layout_width="wrap_content"
-            android:text="@string/msg_demo_rxbus_2"/>
-
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f3128d86..4f65e9df 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -21,7 +21,5 @@
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
-
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
-    <string name="msg_demo_rxbus_2">Tap anywhere outside for \'dead events\'</string>
 </resources>

From 40e8b8df4980b594b14aa00fa14d4e37d0f2520c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Dec 2014 15:08:56 -0800
Subject: [PATCH 038/260] fix: pointed to debounced buffer usage in title

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 45136c06..7861d98a 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ While the example here is pretty rudimentary, the technique used to achieve the
 
 This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
 
-### RxBus - An event bus using RxJAva
+### RxBus - An event bus using RxJava + DebouncedBuffer
 
 Have a look at the accompanying blog posts for details on this demo:
 

From 1ccb0cfe370cb07b82774f138fc5711d4455f61f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 7 Jan 2015 12:31:37 -0800
Subject: [PATCH 039/260] refactor: rename bottom fragments for RxBus example
 and introduce a 3rd approach for debounced buffer

---
 .../rxjava/rxbus/RxBusDemoFragment.java       |   7 +-
 ...nt.java => RxBusDemo_Bottom1Fragment.java} |   2 +-
 ...nt.java => RxBusDemo_Bottom2Fragment.java} |   7 +-
 .../rxbus/RxBusDemo_Bottom3Fragment.java      | 110 ++++++++++++++++++
 4 files changed, 119 insertions(+), 7 deletions(-)
 rename app/src/main/java/com/morihacky/android/rxjava/rxbus/{RxBusDemo_BottomFragment.java => RxBusDemo_Bottom1Fragment.java} (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/rxbus/{RxBusDemo_BottomFANCYFragment.java => RxBusDemo_Bottom2Fragment.java} (98%)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index e84a7086..d9dd4c10 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -28,10 +28,11 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     getActivity().getSupportFragmentManager()
         .beginTransaction()
         .replace(R.id.demo_rxbus_frag_1, new RxBusDemo_TopFragment())
-        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFragment())
-        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_BottomFANCYFragment())
+        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom3Fragment())
+        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom2Fragment())
+        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom1Fragment())
         .commit();
   }
 
   public static class TapEvent {}
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 04fbc3b1..0cc5b5ea 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -17,7 +17,7 @@
 
 import static rx.android.observables.AndroidObservable.bindFragment;
 
-public class RxBusDemo_BottomFragment
+public class RxBusDemo_Bottom1Fragment
     extends Fragment {
 
   private RxBus _rxBus;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFANCYFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFANCYFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 9d2d6f59..3b159de0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_BottomFANCYFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -21,7 +21,7 @@
 
 import static rx.android.observables.AndroidObservable.bindFragment;
 
-public class RxBusDemo_BottomFANCYFragment
+public class RxBusDemo_Bottom2Fragment
     extends Fragment {
 
   private RxBus _rxBus;
@@ -51,8 +51,6 @@ public void onStart() {
     _subscriptions = new CompositeSubscription();
 
     Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
-    Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
-    Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
 
     _subscriptions//
         .add(bindFragment(this, tapEventEmitter)//
@@ -65,6 +63,9 @@ public void call(Object event) {
                    }
                  }));
 
+    Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
+    Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
+
     _subscriptions//
         .add(debouncedBufferEmitter//
                  .observeOn(AndroidSchedulers.mainThread())//
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
new file mode 100644
index 00000000..edad963d
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -0,0 +1,110 @@
+package com.morihacky.android.rxjava.rxbus;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.view.ViewCompat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import com.morihacky.android.rxjava.MainActivity;
+import com.morihacky.android.rxjava.app.R;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import rx.Observable;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Action1;
+import rx.functions.Func1;
+import rx.observables.ConnectableObservable;
+import rx.subscriptions.CompositeSubscription;
+
+import static rx.android.observables.AndroidObservable.bindFragment;
+
+public class RxBusDemo_Bottom3Fragment
+    extends Fragment {
+
+  private RxBus _rxBus;
+  private CompositeSubscription _subscriptions;
+
+  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+  @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    _subscriptions = new CompositeSubscription();
+
+    ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
+
+    _subscriptions//
+        .add(bindFragment(this, tapEventEmitter)//
+                 .subscribe(new Action1<Object>() {
+                   @Override
+                   public void call(Object event) {
+                     if (event instanceof RxBusDemoFragment.TapEvent) {
+                       _showTapText();
+                     }
+                   }
+                 }));
+
+    _subscriptions//
+        .add(tapEventEmitter.publish(new Func1<Observable<Object>, Observable<List<Object>>>() {
+          @Override
+          public Observable<List<Object>> call(Observable<Object> stream) {
+            return stream.buffer(stream.debounce(1, TimeUnit.SECONDS));
+          }
+        }).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<List<Object>>() {
+          @Override
+          public void call(List<Object> taps) {
+            _showTapCount(taps.size());
+          }
+        }));
+
+    _subscriptions.add(tapEventEmitter.connect());
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _subscriptions.clear();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Helper to show the text via an animation
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setAlpha(1f);
+    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+  }
+
+  private void _showTapCount(int size) {
+    _tapEventCountShow.setText(String.valueOf(size));
+    _tapEventCountShow.setVisibility(View.VISIBLE);
+    _tapEventCountShow.setScaleX(1f);
+    _tapEventCountShow.setScaleY(1f);
+    ViewCompat.animate(_tapEventCountShow)
+        .scaleXBy(-1f)
+        .scaleYBy(-1f)
+        .setDuration(800)
+        .setStartDelay(100);
+  }
+}

From d443f688c6798080f785d0bacf8c49965aee4f0b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 21 Jan 2015 11:02:24 +0300
Subject: [PATCH 040/260] chore: upgrade RxAndroid from 0.23 to 0.24

---
 app/app.iml                                   |  4 +-
 app/build.gradle                              |  2 +-
 ...ConcurrencyWithSchedulersDemoFragment.java |  4 +-
 .../android/rxjava/DemoTimeoutFragment.java   |  9 +--
 .../android/rxjava/MainActivity.java          |  1 +
 .../SubjectDebounceSearchEmitterFragment.java |  6 +-
 .../android/rxjava/TimingDemoFragment.java    | 74 +++++++++++++++++++
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  2 +-
 .../rxbus/RxBusDemo_Bottom2Fragment.java      |  2 +-
 .../rxbus/RxBusDemo_Bottom3Fragment.java      |  3 +-
 .../main/res/layout/fragment_timing_demo.xml  | 13 ++++
 11 files changed, 104 insertions(+), 16 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
 create mode 100644 app/src/main/res/layout/fragment_timing_demo.xml

diff --git a/app/app.iml b/app/app.iml
index 53174074..e02b1a40 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -83,13 +83,13 @@
     </content>
     <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" name="rxandroid-0.24.0" level="project" />
     <orderEntry type="library" exported="" name="okhttp-urlconnection-2.0.0" level="project" />
     <orderEntry type="library" exported="" name="gson-2.2.4" level="project" />
-    <orderEntry type="library" exported="" name="rxandroid-0.23.0" level="project" />
     <orderEntry type="library" exported="" name="support-v4-21.0.2" level="project" />
+    <orderEntry type="library" exported="" name="rxjava-1.0.4" level="project" />
     <orderEntry type="library" exported="" name="okio-1.0.0" level="project" />
     <orderEntry type="library" exported="" name="timber-2.4.2" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-1.0.0-rc.9" level="project" />
     <orderEntry type="library" exported="" name="support-v13-21.0.2" level="project" />
     <orderEntry type="library" exported="" name="retrofit-1.6.1" level="project" />
     <orderEntry type="library" exported="" name="support-annotations-21.0.2" level="project" />
diff --git a/app/build.gradle b/app/build.gradle
index 79f8a4ca..805e4007 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ dependencies {
 
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'io.reactivex:rxandroid:0.23.0'
+    compile 'io.reactivex:rxandroid:0.24.0'
     //compile 'io.reactivex:rxjava-math:0.21.0'
 
     compile 'com.squareup.retrofit:retrofit:1.6.1'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 03611474..0abf2a8e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -22,7 +22,7 @@
 import rx.Observer;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.observables.AndroidObservable;
+import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
@@ -66,7 +66,7 @@ public void startLongOperation() {
     _progress.setVisibility(View.VISIBLE);
     _log("Button Clicked");
 
-    _subscription = AndroidObservable.bindFragment(this, _getObservable())      // Observable
+    _subscription = AppObservable.bindFragment(this, _getObservable())      // Observable
         .subscribeOn(Schedulers.io())
         .observeOn(AndroidSchedulers.mainThread())
         .subscribe(_getObserver());                             // Observer
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
index 8770dd63..a4e48d85 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
@@ -22,7 +22,7 @@
 import rx.Observer;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.observables.AndroidObservable;
+import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
@@ -60,16 +60,15 @@ public View onCreateView(LayoutInflater inflater,
 
   @OnClick(R.id.btn_demo_timeout_1_2s)
   public void onStart2sTask() {
-    _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this,
-                                                   _getObservableTask_2sToComplete())
+    _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this,
+                                               _getObservableTask_2sToComplete())
         .observeOn(AndroidSchedulers.mainThread())
         .subscribe(_getEventCompletionObserver());
   }
 
   @OnClick(R.id.btn_demo_timeout_1_5s)
   public void onStart5sTask() {
-    _subscription = AndroidObservable.bindFragment(DemoTimeoutFragment.this,
-                                                   _getObservableFor5sTask())
+    _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this, _getObservableFor5sTask())
         .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
         .subscribeOn(Schedulers.computation())
         .observeOn(AndroidSchedulers.mainThread())
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 07204647..6b107805 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -21,6 +21,7 @@ protected void onCreate(Bundle savedInstanceState) {
     getSupportFragmentManager().beginTransaction()
         .addToBackStack(this.toString())
         .replace(R.id.activity_main, new MainFragment(), this.toString())
+        //.replace(R.id.activity_main, new TimingDemoFragment(), this.toString())
         .commit();
   }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 793d0296..311020ad 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -22,7 +22,7 @@
 import rx.Observer;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.observables.AndroidObservable;
+import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import rx.subjects.PublishSubject;
@@ -85,8 +85,8 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     _setupLogger();
 
     _searchTextEmitterSubject = PublishSubject.create();
-    _subscription = AndroidObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
-                                                   Observable.switchOnNext(_searchTextEmitterSubject))
+    _subscription = AppObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
+                                               Observable.switchOnNext(_searchTextEmitterSubject))
         .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
         .observeOn(AndroidSchedulers.mainThread())
         .subscribe(_getSearchObserver());
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
new file mode 100644
index 00000000..b1b84d10
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -0,0 +1,74 @@
+package com.morihacky.android.rxjava;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.app.R;
+import java.util.concurrent.TimeUnit;
+import rx.Notification;
+import rx.Observable;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Action0;
+import rx.functions.Action1;
+import rx.functions.Func1;
+import timber.log.Timber;
+
+public class TimingDemoFragment
+    extends Fragment {
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_timing_demo, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_start_demo)
+  public void onStartButtonClicked() {
+    Timber.d("-------------------- Shutter clicked");
+
+    Observable.just(1)
+        .flatMap(new Func1<Integer, Observable<Object>>() {
+          @Override
+          public Observable<Object> call(Integer integer) {
+            return _getCountdownFlashObservable();
+          }
+        })
+        .repeat(3)
+        .subscribe();
+  }
+
+  private Observable<Object> _getCountdownFlashObservable() {
+    return Observable.interval(1, TimeUnit.SECONDS)
+        .map(new Func1<Long, Object>() {
+          @Override
+          public Object call(Long aLong) {
+            Timber.d("-------------------- Number to show %s", String.valueOf(3l - aLong));
+            return 3l - aLong;
+          }
+        })
+        .take(3)
+        .observeOn(AndroidSchedulers.mainThread())
+        .doOnNext(new Action1<Object>() {
+          @Override
+          public void call(Object o) {
+            Timber.d("-------------------- %s", String.valueOf(o));
+          }
+        })
+        .delay(1, TimeUnit.SECONDS)
+        .observeOn(AndroidSchedulers.mainThread())
+        .doOnCompleted(new Action0() {
+          @Override
+          public void call() {
+            Timber.d("-------------------- FLASH!");
+          }
+        });
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 0cc5b5ea..b124d534 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -15,7 +15,7 @@
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.observables.AndroidObservable.bindFragment;
+import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom1Fragment
     extends Fragment {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 3b159de0..c37023a2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -19,7 +19,7 @@
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.observables.AndroidObservable.bindFragment;
+import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom2Fragment
     extends Fragment {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index edad963d..b04d84a6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -21,7 +21,7 @@
 import rx.observables.ConnectableObservable;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.observables.AndroidObservable.bindFragment;
+import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom3Fragment
     extends Fragment {
@@ -79,6 +79,7 @@ public void call(List<Object> taps) {
         }));
 
     _subscriptions.add(tapEventEmitter.connect());
+
   }
 
   @Override
diff --git a/app/src/main/res/layout/fragment_timing_demo.xml b/app/src/main/res/layout/fragment_timing_demo.xml
new file mode 100644
index 00000000..2e3c485d
--- /dev/null
+++ b/app/src/main/res/layout/fragment_timing_demo.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<FrameLayout
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <Button
+        android:id="@+id/btn_start_demo"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:text="Start"/>
+</FrameLayout>

From a25196ab471bfb9e4b1eac97ab90afbe8a67a5c8 Mon Sep 17 00:00:00 2001
From: alanwgeorge <ageorge@alan-george.com>
Date: Sun, 5 Apr 2015 13:28:35 -0700
Subject: [PATCH 041/260] added listview output to Retrofit example

---
 .../android/rxjava/RetrofitFragment.java      | 268 +++++++++++-------
 app/src/main/res/layout/fragment_retrofit.xml |   6 +
 app/src/main/res/values/strings.xml           |   4 +
 3 files changed, 168 insertions(+), 110 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 31d41fa1..603c69ec 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -3,19 +3,28 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.TextUtils;
+import android.util.Base64;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
 import android.widget.EditText;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+import android.widget.ListView;
+
 import com.google.common.base.Strings;
 import com.morihacky.android.rxjava.app.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
+
+import java.util.ArrayList;
 import java.util.List;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
 import rx.Observer;
@@ -25,111 +34,150 @@
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
-public class RetrofitFragment
-    extends Fragment {
-
-  GithubApi api;
-
-  @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
-  @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
-
-  @Override
-  public void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-
-    RestAdapter restAdapter = new RestAdapter.Builder().setEndpoint("https://api.github.com/")
-        .build();
-
-    api = restAdapter.create(GithubApi.class);
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @OnClick(R.id.btn_demo_retrofit_contributors)
-  public void onListContributorsClicked() {
-    api.contributors(_username.getText().toString(), _repo.getText().toString())
-        .subscribe(new Observer<List<Contributor>>() {
-          @Override
-          public void onCompleted() {
-            Timber.d("Retrofit call 1 completed");
-          }
-
-          @Override
-          public void onError(Throwable e) {
-            Timber.e(e, "woops we got an error while getting the list of contributors");
-          }
-
-          @Override
-          public void onNext(List<Contributor> contributors) {
-            for (Contributor c : contributors) {
-              Timber.d("%s has made %d contributions to %s",
-                       c.login,
-                       c.contributions,
-                       _repo.getText().toString());
-            }
-          }
-        });
-  }
-
-  @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
-  public void onListContributorsWithFullUserInfoClicked() {
-    api.contributors(_username.getText().toString(), _repo.getText().toString())
-        .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-          @Override
-          public Observable<Contributor> call(List<Contributor> contributors) {
-            return Observable.from(contributors);
-          }
-        })
-        .flatMap(new Func1<Contributor, Observable<?>>() {
-          @Override
-          public Observable<?> call(Contributor contributor) {
-            Observable.zip(Observable.just(contributor),
-                           api.user(contributor.login).filter(new Func1<User, Boolean>() {
-                             @Override
-                             public Boolean call(User user) {
-                               return !Strings.isNullOrEmpty(user.name) && !Strings.isNullOrEmpty(user.email);
-                             }
-                           }),
-                           new Func2<Contributor, User, Object>() {
-                             @Override
-                             public Object call(Contributor contributor, User user) {
-                               Timber.d("%s(%s) has made %d contributions to %s",
-                                        user.name,
-                                        user.email,
-                                        contributor.contributions,
-                                        _repo.getText().toString());
-
-                               return Observable.empty();
-                             }
-                           }).subscribe();
-            return Observable.empty();
-          }
-        })
-        .subscribeOn(Schedulers.newThread())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(new Observer<Object>() {
-          @Override
-          public void onCompleted() {
-            Timber.d("Retrofit call 2 completed ");
-          }
-
-          @Override
-          public void onError(Throwable e) {
-            Timber.e(e,
-                     "woops we got an error while getting the list of contributors along with full names");
-          }
-
-          @Override
-          public void onNext(Object o) {
-            Timber.d("hi! onNext");
-          }
-        });
-  }
+public class RetrofitFragment extends Fragment {
+
+    private ArrayAdapter<String> _adapter;
+
+    GithubApi api;
+
+    @InjectView(R.id.log_list) ListView _resultsListView;
+    @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
+    @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        final String githubUsernamePassword = getActivity().getString(R.string.github_username_password);
+
+        RestAdapter.Builder builder = new RestAdapter.Builder()
+                .setEndpoint("https://api.github.com/")
+                .setLogLevel(RestAdapter.LogLevel.FULL);
+
+        if (!TextUtils.isEmpty(githubUsernamePassword)) {
+            builder.setRequestInterceptor(new RequestInterceptor() {
+                @Override
+                public void intercept(RequestFacade request) {
+                    String string = "Basic " + Base64.encodeToString(githubUsernamePassword.getBytes(), Base64.NO_WRAP);
+                    request.addHeader("Accept", "application/json");
+                    request.addHeader("Authorization", string);
+                }
+            });
+        }
+
+        RestAdapter restAdapter = builder.build();
+
+        api = restAdapter.create(GithubApi.class);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
+        ButterKnife.inject(this, layout);
+
+
+
+        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
+        _adapter.setNotifyOnChange(true);
+        _resultsListView.setAdapter(_adapter);
+
+        return layout;
+    }
+
+    @OnClick(R.id.btn_demo_retrofit_contributors)
+    public void onListContributorsClicked() {
+        _adapter.clear();
+        api.contributors(_username.getText().toString(), _repo.getText().toString())
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(new Observer<List<Contributor>>() {
+                    @Override
+                    public void onCompleted() {
+                        Timber.d("Retrofit call 1 completed");
+                    }
+
+                    @Override
+                    public void onError(Throwable e) {
+                        Timber.e(e, "woops we got an error while getting the list of contributors");
+                    }
+
+                    @Override
+                    public void onNext(List<Contributor> contributors) {
+                        for (Contributor c : contributors) {
+                            _adapter.add(String.format("%s has made %d contributions to %s",
+                                    c.login,
+                                    c.contributions,
+                                    _repo.getText().toString()));
+                            Timber.d("%s has made %d contributions to %s",
+                                    c.login,
+                                    c.contributions,
+                                    _repo.getText().toString());
+                        }
+                    }
+                });
+    }
+
+    @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
+    public void onListContributorsWithFullUserInfoClicked() {
+        _adapter.clear();
+        api.contributors(_username.getText().toString(), _repo.getText().toString())
+                .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                    @Override
+                    public Observable<Contributor> call(List<Contributor> contributors) {
+                        return Observable.from(contributors);
+                    }
+                })
+                .flatMap(new Func1<Contributor, Observable<?>>() {
+                    @Override
+                    public Observable<?> call(Contributor contributor) {
+                        Observable.zip(Observable.just(contributor),
+                                api.user(contributor.login).filter(new Func1<User, Boolean>() {
+                                    @Override
+                                    public Boolean call(User user) {
+                                        return !Strings.isNullOrEmpty(user.name) && !Strings.isNullOrEmpty(user.email);
+                                    }
+                                }),
+                                new Func2<Contributor, User, Object>() {
+                                    @Override
+                                    public Object call(Contributor contributor, User user) {
+                                        _adapter.add(String.format("%s(%s) has made %d contributions to %s",
+                                                                                user.name,
+                                                                                user.email,
+                                                                                contributor.contributions,
+                                                                                _repo.getText().toString()));
+                                        _adapter.notifyDataSetChanged();
+                                        Timber.d("%s(%s) has made %d contributions to %s",
+                                                user.name,
+                                                user.email,
+                                                contributor.contributions,
+                                                _repo.getText().toString());
+
+                                        return Observable.empty();
+                                    }
+                                }).subscribe();
+                        return Observable.empty();
+                    }
+                })
+                .subscribeOn(Schedulers.newThread())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(new Observer<Object>() {
+                    @Override
+                    public void onCompleted() {
+                        Timber.d("Retrofit call 2 completed ");
+                    }
+
+                    @Override
+                    public void onError(Throwable e) {
+                        Timber.e(e,
+                                "woops we got an error while getting the list of contributors along with full names");
+                    }
+
+                    @Override
+                    public void onNext(Object o) {
+                        Timber.d("hi! onNext");
+                    }
+                });
+    }
 }
diff --git a/app/src/main/res/layout/fragment_retrofit.xml b/app/src/main/res/layout/fragment_retrofit.xml
index 17a67d2d..c121fe28 100644
--- a/app/src/main/res/layout/fragment_retrofit.xml
+++ b/app/src/main/res/layout/fragment_retrofit.xml
@@ -74,4 +74,10 @@
             android:hint="reponame"/>
     </LinearLayout>
 
+    <ListView
+        android:id="@+id/log_list"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+    </ListView>
+
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 4f65e9df..eba84d08 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -22,4 +22,8 @@
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
+
+    <!-- format username:password -->
+    <!--suppress CheckTagEmptyBody -->
+    <string name="github_username_password"></string>
 </resources>

From 1d3d5d76b7063d74e94af6d2f3646eeef4f8fe49 Mon Sep 17 00:00:00 2001
From: alanwgeorge <ageorge@alan-george.com>
Date: Sun, 5 Apr 2015 13:34:14 -0700
Subject: [PATCH 042/260] fix intents for better diff view

---
 .../android/rxjava/RetrofitFragment.java      | 270 +++++++++---------
 1 file changed, 135 insertions(+), 135 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 603c69ec..371f17bf 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -36,148 +36,148 @@
 
 public class RetrofitFragment extends Fragment {
 
-    private ArrayAdapter<String> _adapter;
+  private ArrayAdapter<String> _adapter;
 
-    GithubApi api;
+  GithubApi api;
 
-    @InjectView(R.id.log_list) ListView _resultsListView;
-    @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
-    @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
+  @InjectView(R.id.log_list) ListView _resultsListView;
+  @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
+  @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
 
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
 
-        final String githubUsernamePassword = getActivity().getString(R.string.github_username_password);
+    final String githubUsernamePassword = getActivity().getString(R.string.github_username_password);
 
-        RestAdapter.Builder builder = new RestAdapter.Builder()
-                .setEndpoint("https://api.github.com/")
-                .setLogLevel(RestAdapter.LogLevel.FULL);
+    RestAdapter.Builder builder = new RestAdapter.Builder()
+        .setEndpoint("https://api.github.com/")
+        .setLogLevel(RestAdapter.LogLevel.FULL);
 
-        if (!TextUtils.isEmpty(githubUsernamePassword)) {
-            builder.setRequestInterceptor(new RequestInterceptor() {
-                @Override
-                public void intercept(RequestFacade request) {
-                    String string = "Basic " + Base64.encodeToString(githubUsernamePassword.getBytes(), Base64.NO_WRAP);
-                    request.addHeader("Accept", "application/json");
-                    request.addHeader("Authorization", string);
-                }
-            });
+    if (!TextUtils.isEmpty(githubUsernamePassword)) {
+      builder.setRequestInterceptor(new RequestInterceptor() {
+        @Override
+        public void intercept(RequestFacade request) {
+          String string = "Basic " + Base64.encodeToString(githubUsernamePassword.getBytes(), Base64.NO_WRAP);
+          request.addHeader("Accept", "application/json");
+          request.addHeader("Authorization", string);
         }
-
-        RestAdapter restAdapter = builder.build();
-
-        api = restAdapter.create(GithubApi.class);
+      });
     }
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-        ButterKnife.inject(this, layout);
-
-
-
-        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
-        _adapter.setNotifyOnChange(true);
-        _resultsListView.setAdapter(_adapter);
-
-        return layout;
-    }
-
-    @OnClick(R.id.btn_demo_retrofit_contributors)
-    public void onListContributorsClicked() {
-        _adapter.clear();
-        api.contributors(_username.getText().toString(), _repo.getText().toString())
-                .subscribeOn(Schedulers.io())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<List<Contributor>>() {
-                    @Override
-                    public void onCompleted() {
-                        Timber.d("Retrofit call 1 completed");
-                    }
-
-                    @Override
-                    public void onError(Throwable e) {
-                        Timber.e(e, "woops we got an error while getting the list of contributors");
-                    }
-
-                    @Override
-                    public void onNext(List<Contributor> contributors) {
-                        for (Contributor c : contributors) {
-                            _adapter.add(String.format("%s has made %d contributions to %s",
-                                    c.login,
-                                    c.contributions,
-                                    _repo.getText().toString()));
-                            Timber.d("%s has made %d contributions to %s",
-                                    c.login,
-                                    c.contributions,
-                                    _repo.getText().toString());
-                        }
-                    }
-                });
-    }
-
-    @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
-    public void onListContributorsWithFullUserInfoClicked() {
-        _adapter.clear();
-        api.contributors(_username.getText().toString(), _repo.getText().toString())
-                .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                    @Override
-                    public Observable<Contributor> call(List<Contributor> contributors) {
-                        return Observable.from(contributors);
-                    }
-                })
-                .flatMap(new Func1<Contributor, Observable<?>>() {
-                    @Override
-                    public Observable<?> call(Contributor contributor) {
-                        Observable.zip(Observable.just(contributor),
-                                api.user(contributor.login).filter(new Func1<User, Boolean>() {
-                                    @Override
-                                    public Boolean call(User user) {
-                                        return !Strings.isNullOrEmpty(user.name) && !Strings.isNullOrEmpty(user.email);
-                                    }
-                                }),
-                                new Func2<Contributor, User, Object>() {
-                                    @Override
-                                    public Object call(Contributor contributor, User user) {
-                                        _adapter.add(String.format("%s(%s) has made %d contributions to %s",
-                                                                                user.name,
-                                                                                user.email,
-                                                                                contributor.contributions,
-                                                                                _repo.getText().toString()));
-                                        _adapter.notifyDataSetChanged();
-                                        Timber.d("%s(%s) has made %d contributions to %s",
-                                                user.name,
-                                                user.email,
-                                                contributor.contributions,
-                                                _repo.getText().toString());
-
-                                        return Observable.empty();
-                                    }
-                                }).subscribe();
-                        return Observable.empty();
-                    }
-                })
-                .subscribeOn(Schedulers.newThread())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<Object>() {
-                    @Override
-                    public void onCompleted() {
-                        Timber.d("Retrofit call 2 completed ");
-                    }
-
-                    @Override
-                    public void onError(Throwable e) {
-                        Timber.e(e,
-                                "woops we got an error while getting the list of contributors along with full names");
-                    }
-
-                    @Override
-                    public void onNext(Object o) {
-                        Timber.d("hi! onNext");
-                    }
-                });
-    }
+    RestAdapter restAdapter = builder.build();
+
+    api = restAdapter.create(GithubApi.class);
+  }
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
+    ButterKnife.inject(this, layout);
+
+
+
+    _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
+    _adapter.setNotifyOnChange(true);
+    _resultsListView.setAdapter(_adapter);
+
+    return layout;
+  }
+
+  @OnClick(R.id.btn_demo_retrofit_contributors)
+  public void onListContributorsClicked() {
+    _adapter.clear();
+    api.contributors(_username.getText().toString(), _repo.getText().toString())
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(new Observer<List<Contributor>>() {
+          @Override
+          public void onCompleted() {
+            Timber.d("Retrofit call 1 completed");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "woops we got an error while getting the list of contributors");
+          }
+
+          @Override
+          public void onNext(List<Contributor> contributors) {
+            for (Contributor c : contributors) {
+              _adapter.add(String.format("%s has made %d contributions to %s",
+                  c.login,
+                  c.contributions,
+                  _repo.getText().toString()));
+              Timber.d("%s has made %d contributions to %s",
+                  c.login,
+                  c.contributions,
+                  _repo.getText().toString());
+            }
+          }
+        });
+  }
+
+  @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
+  public void onListContributorsWithFullUserInfoClicked() {
+    _adapter.clear();
+    api.contributors(_username.getText().toString(), _repo.getText().toString())
+        .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+          @Override
+          public Observable<Contributor> call(List<Contributor> contributors) {
+            return Observable.from(contributors);
+          }
+        })
+        .flatMap(new Func1<Contributor, Observable<?>>() {
+          @Override
+          public Observable<?> call(Contributor contributor) {
+            Observable.zip(Observable.just(contributor),
+                api.user(contributor.login).filter(new Func1<User, Boolean>() {
+                  @Override
+                  public Boolean call(User user) {
+                    return !Strings.isNullOrEmpty(user.name) && !Strings.isNullOrEmpty(user.email);
+                  }
+                }),
+                new Func2<Contributor, User, Object>() {
+                  @Override
+                  public Object call(Contributor contributor, User user) {
+                    _adapter.add(String.format("%s(%s) has made %d contributions to %s",
+                        user.name,
+                        user.email,
+                        contributor.contributions,
+                        _repo.getText().toString()));
+                    _adapter.notifyDataSetChanged();
+                    Timber.d("%s(%s) has made %d contributions to %s",
+                        user.name,
+                        user.email,
+                        contributor.contributions,
+                        _repo.getText().toString());
+
+                    return Observable.empty();
+                  }
+                }).subscribe();
+            return Observable.empty();
+          }
+        })
+        .subscribeOn(Schedulers.newThread())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(new Observer<Object>() {
+          @Override
+          public void onCompleted() {
+            Timber.d("Retrofit call 2 completed ");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e,
+                "woops we got an error while getting the list of contributors along with full names");
+          }
+
+          @Override
+          public void onNext(Object o) {
+            Timber.d("hi! onNext");
+          }
+        });
+  }
 }

From 28c9fb74236b29219a61405cda4859248871f8d4 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 21 Apr 2015 23:43:07 -0700
Subject: [PATCH 043/260] feat: add new example that explains a good use case
 of .combineLatest (form validation

---
 .../FormValidationCombineLatestFragment.java  | 119 ++++++++++++++++++
 .../android/rxjava/MainActivity.java          |   1 -
 .../android/rxjava/MainFragment.java          |   9 ++
 .../fragment_form_validation_comb_latest.xml  |  97 ++++++++++++++
 app/src/main/res/layout/fragment_main.xml     |   6 +
 app/src/main/res/values/colors.xml            |   1 +
 app/src/main/res/values/strings.xml           |   3 +
 7 files changed, 235 insertions(+), 1 deletion(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
 create mode 100644 app/src/main/res/layout/fragment_form_validation_comb_latest.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
new file mode 100644
index 00000000..a7ede1fe
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -0,0 +1,119 @@
+package com.morihacky.android.rxjava;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.EditText;
+import android.widget.TextView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import com.morihacky.android.rxjava.app.R;
+import rx.Observable;
+import rx.Observer;
+import rx.Subscription;
+import rx.android.widget.OnTextChangeEvent;
+import rx.android.widget.WidgetObservable;
+import rx.functions.Func3;
+import timber.log.Timber;
+
+import static android.util.Patterns.EMAIL_ADDRESS;
+import static com.google.common.base.Strings.isNullOrEmpty;
+
+public class FormValidationCombineLatestFragment
+    extends Fragment {
+
+  @InjectView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
+  @InjectView(R.id.demo_combl_email) EditText _email;
+  @InjectView(R.id.demo_combl_password) EditText _password;
+  @InjectView(R.id.demo_combl_num) EditText _number;
+
+  private Observable<OnTextChangeEvent> _emailChangeObservable;
+  private Observable<OnTextChangeEvent> _passwordChangeObservable;
+  private Observable<OnTextChangeEvent> _numberChangeObservable;
+
+  private Subscription _subscription = null;
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
+    ButterKnife.inject(this, layout);
+
+    _emailChangeObservable = WidgetObservable.text(_email);
+    _passwordChangeObservable = WidgetObservable.text(_password);
+    _numberChangeObservable = WidgetObservable.text(_number);
+
+    _combineLatestEvents();
+
+    return layout;
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    if (_subscription != null) {
+      _subscription.unsubscribe();
+    }
+  }
+
+  private void _combineLatestEvents() {
+    _subscription = Observable.combineLatest(_emailChangeObservable,
+        _passwordChangeObservable,
+        _numberChangeObservable,
+        new Func3<OnTextChangeEvent, OnTextChangeEvent, OnTextChangeEvent, Boolean>() {
+          @Override
+          public Boolean call(OnTextChangeEvent onEmailChangeEvent,
+                              OnTextChangeEvent onPasswordChangeEvent,
+                              OnTextChangeEvent onNumberChangeEvent) {
+
+            boolean emailValid = !isNullOrEmpty(onEmailChangeEvent.text().toString()) &&
+                                 EMAIL_ADDRESS.matcher(onEmailChangeEvent.text()).matches();
+            if (!emailValid) {
+              _email.setError("Invalid Email!");
+            }
+
+            boolean passValid = !isNullOrEmpty(onPasswordChangeEvent.text().toString()) &&
+                                onPasswordChangeEvent.text().length() > 8;
+            if (!passValid) {
+              _password.setError("Invalid Password!");
+            }
+
+            boolean numValid = !isNullOrEmpty(onNumberChangeEvent.text().toString());
+            if (numValid) {
+              int num = Integer.parseInt(onNumberChangeEvent.text().toString());
+              numValid = num > 0 && num <= 100;
+            }
+            if (!numValid) {
+              _number.setError("Invalid Number!");
+            }
+
+            return emailValid && passValid && numValid;
+
+          }
+        })//
+        .subscribe(new Observer<Boolean>() {
+          @Override
+          public void onCompleted() {
+            Timber.d("completed");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "there was an eroor");
+          }
+
+          @Override
+          public void onNext(Boolean formValid) {
+            if (formValid) {
+              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
+            } else {
+              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
+            }
+          }
+        });
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 6b107805..07204647 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -21,7 +21,6 @@ protected void onCreate(Bundle savedInstanceState) {
     getSupportFragmentManager().beginTransaction()
         .addToBackStack(this.toString())
         .replace(R.id.activity_main, new MainFragment(), this.toString())
-        //.replace(R.id.activity_main, new TimingDemoFragment(), this.toString())
         .commit();
   }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index ba7b8517..0d5644ef 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -94,4 +94,13 @@ public void demoTimeout() {
         .replace(R.id.activity_main, new DemoTimeoutFragment(), this.toString())
         .commit();
   }
+
+  @OnClick(R.id.btn_demo_form_validation_combinel)
+  public void formValidation() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new FormValidationCombineLatestFragment(), this.toString())
+        .commit();
+  }
 }
diff --git a/app/src/main/res/layout/fragment_form_validation_comb_latest.xml b/app/src/main/res/layout/fragment_form_validation_comb_latest.xml
new file mode 100644
index 00000000..6065a998
--- /dev/null
+++ b/app/src/main/res/layout/fragment_form_validation_comb_latest.xml
@@ -0,0 +1,97 @@
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_form_comb_latest"
+        />
+
+
+    <LinearLayout
+        android:orientation="horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        >
+
+        <TextView
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:padding="10dp"
+            android:text="Enter a valid email below:"
+            />
+
+        <EditText
+            android:id="@+id/demo_combl_email"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:inputType="textEmailAddress"
+            />
+    </LinearLayout>
+
+    <LinearLayout
+        android:orientation="horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        >
+
+        <TextView
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:padding="10dp"
+            android:text="password (> than 8 chrs):"
+            />
+
+        <EditText
+            android:id="@+id/demo_combl_password"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            />
+    </LinearLayout>
+
+
+    <LinearLayout
+        android:orientation="horizontal"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        >
+
+        <TextView
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:padding="10dp"
+            android:text="number (between 1 &amp; 100):"
+            />
+
+        <EditText
+            android:id="@+id/demo_combl_num"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:inputType="number"
+            />
+    </LinearLayout>
+
+    <TextView
+        android:id="@+id/btn_demo_form_valid"
+        android:background="@color/gray"
+        android:layout_gravity="center"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:layout_marginTop="10dp"
+        android:padding="10dp"
+        android:text="Submit"
+        />
+
+</LinearLayout>
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index eacafd6a..8d59bce2 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -56,5 +56,11 @@
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_rxbus"/>
+
+        <Button
+            android:id="@+id/btn_demo_form_validation_combinel"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_form_validation_combinel"/>
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index caf6a7e8..c7cd3707 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -3,4 +3,5 @@
     <color name="red">#eb676b</color>
     <color name="blue">#488cef</color>
     <color name="green">#3bc4a2</color>
+    <color name="gray">#cfcfcf</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 4f65e9df..b6a154d5 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -13,6 +13,7 @@
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
     <string name="btn_demo_polling">Polling with RxJava</string>
     <string name="btn_demo_rxbus">Event Bus with RxJava</string>
+    <string name="btn_demo_form_validation_combinel">Form Validation with CombineLatest</string>
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
@@ -22,4 +23,6 @@
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
+    <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>
+
 </resources>

From 0b9c19b5db4f0333b2e8ed1d41890cbfa4b39bf1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 21 Apr 2015 23:46:02 -0700
Subject: [PATCH 044/260] fix: update gitignore file

---
 .gitignore | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/.gitignore b/.gitignore
index 8aebcd57..77e62b9f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 # built application files
+*.apk
 *.ap_
 
 # files for the dex VM
@@ -10,18 +11,27 @@
 # generated files
 bin/
 gen/
-lint.xml
 build/
 
+# Gradle files
+.gradle/
+build/
+subProjects/facebook/build
+
+# Intellij project files
+.idea/
+.idea/workspace.xml
+gen-external-apklibs/
+*.iml
+
+# Intellij
+.idea/
+*.iml
+*.iws
+
 # Local configuration file (sdk path, etc)
 local.properties
 
-# Eclipse project files
-.classpath
-.project
-.settings
-.checkstyle
-
 # Mac-specific stuff
 .DS_Store
 
@@ -33,12 +43,4 @@ pom.xml.*
 #Ant
 build.xml
 ant.properties
-local.properties
-
-# Gradle
-.gradle
-
-# Intellij project files
-.idea
-.idea/workspace.xml
-gen-external-apklibs/
\ No newline at end of file
+local.properties
\ No newline at end of file

From 575e0ee7036cabc8faedcc0b1e34799ca563bfc0 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 21 Apr 2015 23:46:22 -0700
Subject: [PATCH 045/260] chore: gitignore update

---
 Android-RxJava.iml |  21 ----------
 app/app.iml        | 101 ---------------------------------------------
 2 files changed, 122 deletions(-)
 delete mode 100644 Android-RxJava.iml
 delete mode 100644 app/app.iml

diff --git a/Android-RxJava.iml b/Android-RxJava.iml
deleted file mode 100644
index 55503402..00000000
--- a/Android-RxJava.iml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$" external.system.id="GRADLE" external.system.module.group="" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="java-gradle" name="Java-Gradle">
-      <configuration>
-        <option name="BUILD_FOLDER_PATH" value="$MODULE_DIR$/build" />
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/build/classes/main" />
-    <output-test url="file://$MODULE_DIR$/build/classes/test" />
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.gradle" />
-    </content>
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
-
diff --git a/app/app.iml b/app/app.iml
deleted file mode 100644
index e02b1a40..00000000
--- a/app/app.iml
+++ /dev/null
@@ -1,101 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/.." external.system.id="GRADLE" external.system.module.group="Android-RxJava" external.system.module.version="unspecified" type="JAVA_MODULE" version="4">
-  <component name="FacetManager">
-    <facet type="android-gradle" name="Android-Gradle">
-      <configuration>
-        <option name="GRADLE_PROJECT_PATH" value=":app" />
-      </configuration>
-    </facet>
-    <facet type="android" name="Android">
-      <configuration>
-        <option name="SELECTED_BUILD_VARIANT" value="debug" />
-        <option name="ASSEMBLE_TASK_NAME" value="assembleDebug" />
-        <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugSources" />
-        <option name="ASSEMBLE_TEST_TASK_NAME" value="assembleDebugTest" />
-        <option name="SOURCE_GEN_TASK_NAME" value="generateDebugSources" />
-        <option name="TEST_SOURCE_GEN_TASK_NAME" value="generateDebugTestSources" />
-        <option name="ALLOW_USER_CONFIGURATION" value="false" />
-        <option name="MANIFEST_FILE_RELATIVE_PATH" value="/src/main/AndroidManifest.xml" />
-        <option name="RES_FOLDER_RELATIVE_PATH" value="/src/main/res" />
-        <option name="RES_FOLDERS_RELATIVE_PATH" value="file://$MODULE_DIR$/src/main/res" />
-        <option name="ASSETS_FOLDER_RELATIVE_PATH" value="/src/main/assets" />
-      </configuration>
-    </facet>
-  </component>
-  <component name="NewModuleRootManager" inherit-compiler-output="false">
-    <output url="file://$MODULE_DIR$/build/intermediates/classes/debug" />
-    <exclude-output />
-    <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/r/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/aidl/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/buildConfig/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/rs/debug" isTestSource="false" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/debug" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/generated/debug" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/r/test/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/aidl/test/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/buildConfig/test/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/rs/test/debug" isTestSource="true" generated="true" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/test/debug" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/generated/test/debug" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/res" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/assets" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/aidl" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/jni" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/debug/rs" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/res" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/assets" type="java-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/aidl" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/jni" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/main/rs" isTestSource="false" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/res" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/resources" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/assets" type="java-test-resource" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/aidl" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/java" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/jni" isTestSource="true" />
-      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/rs" isTestSource="true" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/assets" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/bundles" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/classes" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/coverage-instrumented-classes" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dependency-cache" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dex" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/dex-cache" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/jacoco" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/javaResources" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/libs" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/lint" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/manifests" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/ndk" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/pre-dexed" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/proguard" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/res" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
-      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
-      <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
-      <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
-    </content>
-    <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" exported="" name="rxandroid-0.24.0" level="project" />
-    <orderEntry type="library" exported="" name="okhttp-urlconnection-2.0.0" level="project" />
-    <orderEntry type="library" exported="" name="gson-2.2.4" level="project" />
-    <orderEntry type="library" exported="" name="support-v4-21.0.2" level="project" />
-    <orderEntry type="library" exported="" name="rxjava-1.0.4" level="project" />
-    <orderEntry type="library" exported="" name="okio-1.0.0" level="project" />
-    <orderEntry type="library" exported="" name="timber-2.4.2" level="project" />
-    <orderEntry type="library" exported="" name="support-v13-21.0.2" level="project" />
-    <orderEntry type="library" exported="" name="retrofit-1.6.1" level="project" />
-    <orderEntry type="library" exported="" name="support-annotations-21.0.2" level="project" />
-    <orderEntry type="library" exported="" name="guava-17.0" level="project" />
-    <orderEntry type="library" exported="" name="butterknife-5.1.1" level="project" />
-    <orderEntry type="library" exported="" name="okhttp-2.0.0" level="project" />
-  </component>
-</module>
-

From 7d6a92c8137e060179d2bd14d4e37e391fc27b38 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 21 Apr 2015 23:56:54 -0700
Subject: [PATCH 046/260] feat: add info text on .combineLatest example

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index 7861d98a..5f1ae796 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,16 @@ Have a look at the accompanying blog posts for details on this demo:
 2. [DebouncedBuffer used for the fancier variant of the demo](http://nerds.weddingpartyapp.com/tech/2014/12/24/secret-bonus-part-debouncedbuffer-used-in-rxbus-example/)
 3. [share/publish/refcount](http://nerds.weddingpartyapp.com/tech/2014/12/24/rxjava-share-publish-refcount-and-all-that-jazz/)
 
+### Form validation using combineLatest
+
+courtesy Dan Lew for this idea that he gave me on the [fragmented podcast episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
+
+`.combineLatest` allows you to monitor the state of multiple observables at once compactly at a single location. The example demonstrated shows how you can use `.combineLatest` to validate a basic form. There are 3 primary inputs for this form to be considered "valid" (an email, a password and a number). The form will turn valid (the text below turns blue :P) once all the inputs are valid. If they are not, an error is shown against the invalid inputs.
+
+We have 3 independent observables that track the text/input changes for each of the form fields (RxAndroid's `WidgetObservable` comes in handy to monitor the text changes). After an event change is noticed from all 3 inputs, the result is "combined" and the form is evaluated for validity.
+
+The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
+
 
 ## Work in Progress:
 

From b68057d6e5e20b3e23725b0952aae96bdc489a19 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 22 Apr 2015 00:04:25 -0700
Subject: [PATCH 047/260] fix: readme language

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5f1ae796..19547456 100644
--- a/README.md
+++ b/README.md
@@ -74,7 +74,7 @@ Have a look at the accompanying blog posts for details on this demo:
 
 ### Form validation using combineLatest
 
-courtesy Dan Lew for this idea that he gave me on the [fragmented podcast episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
+Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
 
 `.combineLatest` allows you to monitor the state of multiple observables at once compactly at a single location. The example demonstrated shows how you can use `.combineLatest` to validate a basic form. There are 3 primary inputs for this form to be considered "valid" (an email, a password and a number). The form will turn valid (the text below turns blue :P) once all the inputs are valid. If they are not, an error is shown against the invalid inputs.
 

From d5828836ae4af61c3fa240ff54d57e864e92ac52 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 22 Apr 2015 00:13:36 -0700
Subject: [PATCH 048/260] fix: add note about .combineLatest kicking in only
 after all 3 observable produce an event change

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 19547456..1c476fe5 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,9 @@ Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #
 
 `.combineLatest` allows you to monitor the state of multiple observables at once compactly at a single location. The example demonstrated shows how you can use `.combineLatest` to validate a basic form. There are 3 primary inputs for this form to be considered "valid" (an email, a password and a number). The form will turn valid (the text below turns blue :P) once all the inputs are valid. If they are not, an error is shown against the invalid inputs.
 
-We have 3 independent observables that track the text/input changes for each of the form fields (RxAndroid's `WidgetObservable` comes in handy to monitor the text changes). After an event change is noticed from all 3 inputs, the result is "combined" and the form is evaluated for validity.
+We have 3 independent observables that track the text/input changes for each of the form fields (RxAndroid's `WidgetObservable` comes in handy to monitor the text changes). After an event change is noticed from **all** 3 inputs, the result is "combined" and the form is evaluated for validity.
+
+Note that the `Func3` function that checks for validity, kicks in only after ALL 3 inputs have received a text change event.
 
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 

From 736b1ac26755ec60e2545b7089dcef5782695f7e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 22 Apr 2015 22:51:19 -0700
Subject: [PATCH 049/260] feat: wip: write pseudo cache example using .concat

---
 README.md                                     | 11 ++++--
 .../android/rxjava/MainActivity.java          |  3 +-
 .../rxjava/PseudoCacheConcatFragment.java     | 34 +++++++++++++++++++
 .../layout/fragment_pseudo_cache_concat.xml   |  7 ++++
 4 files changed, 51 insertions(+), 4 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
 create mode 100644 app/src/main/res/layout/fragment_pseudo_cache_concat.xml

diff --git a/README.md b/README.md
index 1c476fe5..c3560253 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ Have a look at the accompanying blog posts for details on this demo:
 2. [DebouncedBuffer used for the fancier variant of the demo](http://nerds.weddingpartyapp.com/tech/2014/12/24/secret-bonus-part-debouncedbuffer-used-in-rxbus-example/)
 3. [share/publish/refcount](http://nerds.weddingpartyapp.com/tech/2014/12/24/rxjava-share-publish-refcount-and-all-that-jazz/)
 
-### Form validation using combineLatest
+### Form validation - using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
 
 Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
 
@@ -85,12 +85,17 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
 
+### Retrieve data first from a (pseudo) cache, then a network call - using [`.concat`](http://reactivex.io/documentation/operators/concat.html)
+
+Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieveing from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
+
+For the purposes of illustration i use an in-memory `List` (not an actual disk cache), but shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
+
+
 ## Work in Progress:
 
 Examples that I would like to have here, but haven't found the time yet to flush out.
 
-### First retrieve from cached data, if no cache found make a network call if you can't find your data (concat) (wip)
-[Courtesy: gist](https://gist.github.com/adelnizamutdinov/7483969)
 
 ### Pagination (wip)
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 07204647..2db63b59 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -20,7 +20,8 @@ protected void onCreate(Bundle savedInstanceState) {
 
     getSupportFragmentManager().beginTransaction()
         .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new MainFragment(), this.toString())
+        //.replace(R.id.activity_main, new MainFragment(), this.toString())
+        .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
         .commit();
   }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
new file mode 100644
index 00000000..3a560ad1
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
@@ -0,0 +1,34 @@
+package com.morihacky.android.rxjava;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.app.R;
+import rx.Subscription;
+
+public class PseudoCacheConcatFragment
+    extends Fragment {
+
+  private Subscription _subscription = null;
+
+  @Override
+  public View onCreateView(LayoutInflater inflater,
+                           @Nullable ViewGroup container,
+                           @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
+    ButterKnife.inject(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    if (_subscription != null) {
+      _subscription.unsubscribe();
+    }
+  }
+}
diff --git a/app/src/main/res/layout/fragment_pseudo_cache_concat.xml b/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
new file mode 100644
index 00000000..d16cf84d
--- /dev/null
+++ b/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
@@ -0,0 +1,7 @@
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+</LinearLayout>

From d5623aea5b04313bc8355520948d9bcd7833c717 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 22 Apr 2015 23:48:14 -0700
Subject: [PATCH 050/260] fix: cleanup list populating code

---
 .../android/rxjava/MainActivity.java          |   3 +-
 .../android/rxjava/RetrofitFragment.java      | 153 ++++++++++--------
 app/src/main/res/values/strings.xml           |   6 +-
 3 files changed, 84 insertions(+), 78 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 2db63b59..07204647 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -20,8 +20,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
     getSupportFragmentManager().beginTransaction()
         .addToBackStack(this.toString())
-        //.replace(R.id.activity_main, new MainFragment(), this.toString())
-        .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
+        .replace(R.id.activity_main, new MainFragment(), this.toString())
         .commit();
   }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 371f17bf..6e1d2dde 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -3,27 +3,22 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
-import android.text.TextUtils;
-import android.util.Base64;
+import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-
-import com.google.common.base.Strings;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.app.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
-
 import java.util.ArrayList;
 import java.util.List;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
@@ -34,54 +29,39 @@
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
-public class RetrofitFragment extends Fragment {
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static java.lang.String.format;
 
-  private ArrayAdapter<String> _adapter;
-
-  GithubApi api;
+public class RetrofitFragment
+    extends Fragment {
 
-  @InjectView(R.id.log_list) ListView _resultsListView;
   @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
   @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
+  @InjectView(R.id.log_list) ListView _resultList;
+
+  private GithubApi _api;
+  private ArrayAdapter<String> _adapter;
 
   @Override
   public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
-
-    final String githubUsernamePassword = getActivity().getString(R.string.github_username_password);
-
-    RestAdapter.Builder builder = new RestAdapter.Builder()
-        .setEndpoint("https://api.github.com/")
-        .setLogLevel(RestAdapter.LogLevel.FULL);
-
-    if (!TextUtils.isEmpty(githubUsernamePassword)) {
-      builder.setRequestInterceptor(new RequestInterceptor() {
-        @Override
-        public void intercept(RequestFacade request) {
-          String string = "Basic " + Base64.encodeToString(githubUsernamePassword.getBytes(), Base64.NO_WRAP);
-          request.addHeader("Accept", "application/json");
-          request.addHeader("Authorization", string);
-        }
-      });
-    }
-
-    RestAdapter restAdapter = builder.build();
-
-    api = restAdapter.create(GithubApi.class);
+    _api = _createGithubApi();
   }
 
   @Override
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
                            @Nullable Bundle savedInstanceState) {
+
     View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
     ButterKnife.inject(this, layout);
 
-
-
-    _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
-    _adapter.setNotifyOnChange(true);
-    _resultsListView.setAdapter(_adapter);
+    _adapter = new ArrayAdapter<>(getActivity(),
+        R.layout.item_log,
+        R.id.item_log,
+        new ArrayList<String>());
+    //_adapter.setNotifyOnChange(true);
+    _resultList.setAdapter(_adapter);
 
     return layout;
   }
@@ -89,7 +69,8 @@ public View onCreateView(LayoutInflater inflater,
   @OnClick(R.id.btn_demo_retrofit_contributors)
   public void onListContributorsClicked() {
     _adapter.clear();
-    api.contributors(_username.getText().toString(), _repo.getText().toString())
+
+    _api.contributors(_username.getText().toString(), _repo.getText().toString())
         .subscribeOn(Schedulers.io())
         .observeOn(AndroidSchedulers.mainThread())
         .subscribe(new Observer<List<Contributor>>() {
@@ -106,10 +87,11 @@ public void onError(Throwable e) {
           @Override
           public void onNext(List<Contributor> contributors) {
             for (Contributor c : contributors) {
-              _adapter.add(String.format("%s has made %d contributions to %s",
+              _adapter.add(format("%s has made %d contributions to %s",
                   c.login,
                   c.contributions,
                   _repo.getText().toString()));
+
               Timber.d("%s has made %d contributions to %s",
                   c.login,
                   c.contributions,
@@ -122,47 +104,38 @@ public void onNext(List<Contributor> contributors) {
   @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
   public void onListContributorsWithFullUserInfoClicked() {
     _adapter.clear();
-    api.contributors(_username.getText().toString(), _repo.getText().toString())
+
+    _api.contributors(_username.getText().toString(), _repo.getText().toString())
         .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
           @Override
           public Observable<Contributor> call(List<Contributor> contributors) {
             return Observable.from(contributors);
           }
         })
-        .flatMap(new Func1<Contributor, Observable<?>>() {
+        .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
           @Override
-          public Observable<?> call(Contributor contributor) {
-            Observable.zip(Observable.just(contributor),
-                api.user(contributor.login).filter(new Func1<User, Boolean>() {
+          public Observable<Pair<User, Contributor>> call(Contributor contributor) {
+            Observable<User> _userObservable = _api.user(contributor.login)
+                .filter(new Func1<User, Boolean>() {
                   @Override
                   public Boolean call(User user) {
-                    return !Strings.isNullOrEmpty(user.name) && !Strings.isNullOrEmpty(user.email);
+                    return !isNullOrEmpty(user.name) && !isNullOrEmpty(user.email);
                   }
-                }),
-                new Func2<Contributor, User, Object>() {
+                });
+
+            return Observable.zip(_userObservable,
+                Observable.just(contributor),
+                new Func2<User, Contributor, Pair<User, Contributor>>() {
                   @Override
-                  public Object call(Contributor contributor, User user) {
-                    _adapter.add(String.format("%s(%s) has made %d contributions to %s",
-                        user.name,
-                        user.email,
-                        contributor.contributions,
-                        _repo.getText().toString()));
-                    _adapter.notifyDataSetChanged();
-                    Timber.d("%s(%s) has made %d contributions to %s",
-                        user.name,
-                        user.email,
-                        contributor.contributions,
-                        _repo.getText().toString());
-
-                    return Observable.empty();
+                  public Pair<User, Contributor> call(User user, Contributor contributor) {
+                    return new Pair<>(user, contributor);
                   }
-                }).subscribe();
-            return Observable.empty();
+                });
           }
         })
         .subscribeOn(Schedulers.newThread())
         .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(new Observer<Object>() {
+        .subscribe(new Observer<Pair<User, Contributor>>() {
           @Override
           public void onCompleted() {
             Timber.d("Retrofit call 2 completed ");
@@ -170,14 +143,52 @@ public void onCompleted() {
 
           @Override
           public void onError(Throwable e) {
-            Timber.e(e,
-                "woops we got an error while getting the list of contributors along with full names");
+            Timber.e(e, "error while getting the list of contributors along with full names");
           }
 
           @Override
-          public void onNext(Object o) {
-            Timber.d("hi! onNext");
+          public void onNext(Pair<User, Contributor> pair) {
+            if (pair == null) {
+              return;
+            }
+
+            User user = pair.first;
+            Contributor contributor = pair.second;
+
+            _adapter.add(format("%s(%s) has made %d contributions to %s",
+                user.name,
+                user.email,
+                contributor.contributions,
+                _repo.getText().toString()));
+
+            _adapter.notifyDataSetChanged();
+
+            Timber.d("%s(%s) has made %d contributions to %s",
+                user.name,
+                user.email,
+                contributor.contributions,
+                _repo.getText().toString());
           }
         });
   }
+
+  // -----------------------------------------------------------------------------------
+
+  private GithubApi _createGithubApi() {
+
+    RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint("https://api.github.com/");
+    //.setLogLevel(RestAdapter.LogLevel.FULL);
+
+    final String githubToken = getResources().getString(R.string.github_oauth_token);
+    if (!isNullOrEmpty(githubToken)) {
+      builder.setRequestInterceptor(new RequestInterceptor() {
+        @Override
+        public void intercept(RequestFacade request) {
+          request.addHeader("Authorization", format("token %s", githubToken));
+        }
+      });
+    }
+
+    return builder.build().create(GithubApi.class);
+  }
 }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e2d02142..7bd3b5e2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -4,6 +4,7 @@
     <string name="app_name">Android-RxJava</string>
     <string name="hello_world">Hello world!</string>
     <string name="action_settings">Settings</string>
+    <string name="github_oauth_token"><!-- InsertYouroAuthTokenHere --></string>
 
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
@@ -24,9 +25,4 @@
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>
-
-
-    <!-- format username:password -->
-    <!--suppress CheckTagEmptyBody -->
-    <string name="github_username_password"></string>
 </resources>

From 6d0b0f3c8e11acfe94b0be958ffe857389c76d6a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 22 Apr 2015 23:50:36 -0700
Subject: [PATCH 051/260] wip: pseudo cache is still wip

---
 README.md | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index c3560253..583f48de 100644
--- a/README.md
+++ b/README.md
@@ -85,6 +85,10 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
 
+## Work in Progress:
+
+Examples that I would like to have here, but haven't found the time yet to flush out.
+
 ### Retrieve data first from a (pseudo) cache, then a network call - using [`.concat`](http://reactivex.io/documentation/operators/concat.html)
 
 Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieveing from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
@@ -92,11 +96,6 @@ Using concat, you can retrieve information from an observable first (presumably
 For the purposes of illustration i use an in-memory `List` (not an actual disk cache), but shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
 
 
-## Work in Progress:
-
-Examples that I would like to have here, but haven't found the time yet to flush out.
-
-
 ### Pagination (wip)
 
 a. Simple pagination

From 5a3ae78eb86d194aa67188bff2f97624eafd1c86 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 22 Apr 2015 23:57:57 -0700
Subject: [PATCH 052/260] fix: unncessary null check

---
 .../java/com/morihacky/android/rxjava/RetrofitFragment.java   | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 6e1d2dde..8f37a25d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -148,10 +148,6 @@ public void onError(Throwable e) {
 
           @Override
           public void onNext(Pair<User, Contributor> pair) {
-            if (pair == null) {
-              return;
-            }
-
             User user = pair.first;
             Contributor contributor = pair.second;
 

From 61e69ffdac4487688ce61e6bd04ebfc59842fa5b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 23 Apr 2015 09:00:08 -0700
Subject: [PATCH 053/260] feat: flush out pseudo cache example using .concat

---
 .../android/rxjava/MainFragment.java          |   9 ++
 .../rxjava/PseudoCacheConcatFragment.java     | 120 +++++++++++++++++-
 app/src/main/res/layout/fragment_main.xml     |   6 +
 .../layout/fragment_pseudo_cache_concat.xml   |  17 +++
 app/src/main/res/values/strings.xml           |   1 +
 5 files changed, 152 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 0d5644ef..7c944392 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -103,4 +103,13 @@ public void formValidation() {
         .replace(R.id.activity_main, new FormValidationCombineLatestFragment(), this.toString())
         .commit();
   }
+
+  @OnClick(R.id.btn_demo_pseudo_cache)
+  public void pseudoCacheDemo() {
+    getActivity().getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(this.toString())
+        .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
+        .commit();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
index 3a560ad1..d677e806 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
@@ -6,21 +6,45 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
 import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.retrofit.Contributor;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import retrofit.RequestInterceptor;
+import retrofit.RestAdapter;
+import rx.Observable;
+import rx.Subscriber;
 import rx.Subscription;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func1;
+import timber.log.Timber;
+
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static java.lang.String.format;
 
 public class PseudoCacheConcatFragment
     extends Fragment {
 
+  @InjectView(R.id.log_list) ListView _resultList;
+
   private Subscription _subscription = null;
+  private HashMap<String, Long> _contributionMap = null;
+  private ArrayAdapter<String> _adapter;
 
   @Override
   public View onCreateView(LayoutInflater inflater,
                            @Nullable ViewGroup container,
                            @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
+    View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
     ButterKnife.inject(this, layout);
+    _initializeCache();
     return layout;
   }
 
@@ -31,4 +55,98 @@ public void onPause() {
       _subscription.unsubscribe();
     }
   }
+
+  @OnClick(R.id.btn_start_pseudo_cache)
+  public void onDemoPseudoCacheClicked() {
+    _adapter = new ArrayAdapter<>(getActivity(),
+        R.layout.item_log,
+        R.id.item_log,
+        new ArrayList<String>());
+
+    _resultList.setAdapter(_adapter);
+    _initializeCache();
+
+    Observable.concat(_getCachedData(), _getFreshData())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(new Subscriber<Contributor>() {
+          @Override
+          public void onCompleted() {
+            Timber.d("done loading all data");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "arr something went wrong");
+          }
+
+          @Override
+          public void onNext(Contributor contributor) {
+            _contributionMap.put(contributor.login, contributor.contributions);
+            _adapter.clear();
+            _adapter.addAll(getListStringFromMap());
+          }
+        });
+  }
+
+  private List<String> getListStringFromMap() {
+    List<String> list = new ArrayList<>();
+
+    for (String username : _contributionMap.keySet()) {
+      String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
+      list.add(rowLog);
+    }
+
+    return list;
+  }
+
+  private Observable<Contributor> _getCachedData() {
+
+    List<Contributor> list = new ArrayList<>();
+
+    for (String username : _contributionMap.keySet()) {
+      Contributor c = new Contributor();
+      c.login = username;
+      c.contributions = _contributionMap.get(username);
+      list.add(c);
+    }
+
+    return Observable.from(list);
+  }
+
+  private Observable<Contributor> _getFreshData() {
+    return _createGithubApi().contributors("square", "retrofit")
+        .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+          @Override
+          public Observable<Contributor> call(List<Contributor> contributors) {
+            return Observable.from(contributors);
+          }
+        });
+  }
+
+  private GithubApi _createGithubApi() {
+
+    RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint("https://api.github.com/");
+    //.setLogLevel(RestAdapter.LogLevel.FULL);
+
+    final String githubToken = getResources().getString(R.string.github_oauth_token);
+    if (!isNullOrEmpty(githubToken)) {
+      builder.setRequestInterceptor(new RequestInterceptor() {
+        @Override
+        public void intercept(RequestFacade request) {
+          request.addHeader("Authorization", format("token %s", githubToken));
+        }
+      });
+    }
+
+    return builder.build().create(GithubApi.class);
+  }
+
+  private void _initializeCache() {
+    _contributionMap = new HashMap<>();
+    _contributionMap.put("JakeWharton", 0l);
+    _contributionMap.put("pforhan", 0l);
+    _contributionMap.put("edenman", 0l);
+    _contributionMap.put("swankjesse", 0l);
+    _contributionMap.put("bruceLee", 0l);
+  }
 }
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 8d59bce2..a130d795 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -62,5 +62,11 @@
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_form_validation_combinel"/>
+
+        <Button
+            android:id="@+id/btn_demo_pseudo_cache"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_pseudo_cache"/>
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_pseudo_cache_concat.xml b/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
index d16cf84d..2022f357 100644
--- a/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
+++ b/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
@@ -1,7 +1,24 @@
 <LinearLayout
+    android:baselineAligned="false"
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
     xmlns:android="http://schemas.android.com/apk/res/android"
     >
+
+    <Button
+        android:id="@+id/btn_start_pseudo_cache"
+        android:layout_gravity="center"
+        android:layout_height="wrap_content"
+        android:layout_width="wrap_content"
+        android:text="Start disk > network call"
+        android:layout_margin="30dp"
+        />
+
+    <ListView
+        android:id="@+id/log_list"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        />
+
 </LinearLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7bd3b5e2..7f917a33 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -15,6 +15,7 @@
     <string name="btn_demo_polling">Polling with RxJava</string>
     <string name="btn_demo_rxbus">Event Bus with RxJava</string>
     <string name="btn_demo_form_validation_combinel">Form Validation with CombineLatest</string>
+    <string name="btn_demo_pseudo_cache">Pseudo cache using concat</string>
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>

From d7c5f4e30ee1ebed18b09303166a78644544b86e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 23 Apr 2015 09:01:22 -0700
Subject: [PATCH 054/260] fix: cache example no longer wip fixes issue #6

---
 README.md | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 583f48de..f7a66d04 100644
--- a/README.md
+++ b/README.md
@@ -84,19 +84,19 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
+### Retrieve data first from a cache, then a network call - using [`.concat`](http://reactivex.io/documentation/operators/concat.html)
 
-## Work in Progress:
+Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieveing from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
 
-Examples that I would like to have here, but haven't found the time yet to flush out.
+For the purposes of illustration i use an in-memory `List` (not an actual disk cache), then shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
 
-### Retrieve data first from a (pseudo) cache, then a network call - using [`.concat`](http://reactivex.io/documentation/operators/concat.html)
 
-Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieveing from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
+## Work in Progress:
 
-For the purposes of illustration i use an in-memory `List` (not an actual disk cache), but shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
+Examples that I would like to have here, but haven't found the time yet to flush out.
 
 
-### Pagination (wip)
+### Pagination
 
 a. Simple pagination
 b. Optimized pagination

From abcb14e4d39dbdcdcec7810b966f0494103e50d1 Mon Sep 17 00:00:00 2001
From: "Sherif S. Makhlouf" <sherifmakhlouf91@gmail.com>
Date: Thu, 7 May 2015 09:57:24 +0300
Subject: [PATCH 055/260] Fixing the configuration changes issue in
 MainActivity

---
 .../com/morihacky/android/rxjava/MainActivity.java   | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 07204647..e81137d2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -17,11 +17,13 @@ protected void onCreate(Bundle savedInstanceState) {
     setContentView(R.layout.activity_main);
 
     Timber.plant(new Timber.DebugTree());
-
-    getSupportFragmentManager().beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new MainFragment(), this.toString())
-        .commit();
+      
+    if(savedInstanceState == null){
+      getSupportFragmentManager().beginTransaction()
+          .addToBackStack(this.toString())
+          .replace(R.id.activity_main, new MainFragment(), this.toString())
+          .commit();
+    }
   }
 
   // This is better done with a DI Library like Dagger

From bb90bb7fd2e3051b5d9fdbeb2ab26fca0eafee03 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 11:20:59 -0700
Subject: [PATCH 056/260] chore: Add LeakCanary to project

---
 app/build.gradle                              |  8 ++---
 app/src/main/AndroidManifest.xml              |  3 +-
 .../com/morihacky/android/rxjava/MyApp.java   | 29 +++++++++++++++++++
 .../rxjava/rxbus/RxBusDemo_TopFragment.java   |  3 +-
 4 files changed, 36 insertions(+), 7 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/MyApp.java

diff --git a/app/build.gradle b/app/build.gradle
index 805e4007..7ff86bf2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,6 +14,8 @@ dependencies {
     compile 'com.squareup.okhttp:okhttp:2.0.0'
     compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
 
+    debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
+    releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
 }
 
 android {
@@ -33,8 +35,4 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
-}
-
-dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-}
+}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f0b3253e..f8779a75 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,8 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.morihacky.android.rxjava.app" >
+    package="com.morihacky.android.rxjava" >
 
     <application
+        android:name=".MyApp"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
new file mode 100644
index 00000000..3a220768
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -0,0 +1,29 @@
+package com.morihacky.android.rxjava;
+
+import android.app.Application;
+import com.squareup.leakcanary.LeakCanary;
+import com.squareup.leakcanary.RefWatcher;
+import timber.log.Timber;
+
+public class MyApp
+      extends Application {
+
+    private static MyApp _instance;
+    private RefWatcher _refWatcher;
+
+    public static MyApp get() {
+        return _instance;
+    }
+
+    public static RefWatcher getRefWatcher() {
+        return MyApp.get()._refWatcher;
+    }
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+
+        _instance = (MyApp) getApplicationContext();
+        _refWatcher = LeakCanary.install(this);
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index 53a70434..b7c8eaf9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -8,11 +8,12 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusDemo_TopFragment
-    extends Fragment {
+    extends BaseFragment {
 
   private RxBus _rxBus;
 

From 835e28803b8dd5bd6d5f466974e5a3c26401eec4 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 11:21:17 -0700
Subject: [PATCH 057/260] refactor: use BaseFragment with LeakCanary RefWatcher

---
 .../morihacky/android/rxjava/BaseFragment.java    | 15 +++++++++++++++
 .../android/rxjava/BufferDemoFragment.java        |  2 +-
 .../ConcurrencyWithSchedulersDemoFragment.java    |  2 +-
 .../android/rxjava/DemoTimeoutFragment.java       |  2 +-
 .../rxjava/DoubleBindingTextViewFragment.java     |  2 +-
 .../FormValidationCombineLatestFragment.java      |  2 +-
 .../morihacky/android/rxjava/MainFragment.java    |  2 +-
 .../morihacky/android/rxjava/PollingFragment.java |  2 +-
 .../android/rxjava/PseudoCacheConcatFragment.java |  2 +-
 .../SubjectDebounceSearchEmitterFragment.java     |  2 +-
 .../android/rxjava/TimingDemoFragment.java        |  2 +-
 .../android/rxjava/rxbus/RxBusDemoFragment.java   |  3 ++-
 .../rxjava/rxbus/RxBusDemo_Bottom1Fragment.java   |  3 ++-
 .../rxjava/rxbus/RxBusDemo_Bottom2Fragment.java   |  3 ++-
 .../rxjava/rxbus/RxBusDemo_Bottom3Fragment.java   |  3 ++-
 15 files changed, 33 insertions(+), 14 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java
new file mode 100644
index 00000000..3d260adc
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java
@@ -0,0 +1,15 @@
+package com.morihacky.android.rxjava;
+
+import android.support.v4.app.Fragment;
+import com.squareup.leakcanary.RefWatcher;
+
+public class BaseFragment
+      extends Fragment {
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        RefWatcher refWatcher = MyApp.getRefWatcher();
+        refWatcher.watch(this);
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index fe8c0ac0..7506b2c0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -34,7 +34,7 @@
  * as demonstrated in the case of {@link com.morihacky.android.rxjava.SubjectDebounceSearchEmitterFragment}
  */
 public class BufferDemoFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.list_threading_log) ListView _logsList;
   @InjectView(R.id.btn_start_operation) Button _tapBtn;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 0abf2a8e..235964ae 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -28,7 +28,7 @@
 import timber.log.Timber;
 
 public class ConcurrencyWithSchedulersDemoFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.progress_operation_running) ProgressBar _progress;
   @InjectView(R.id.list_threading_log) ListView _logsList;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
index a4e48d85..ca438fbe 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
@@ -28,7 +28,7 @@
 import timber.log.Timber;
 
 public class DemoTimeoutFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.list_threading_log) ListView _logsList;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
index 27feb253..46788088 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
@@ -20,7 +20,7 @@
 import rx.subjects.PublishSubject;
 
 public class DoubleBindingTextViewFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.double_binding_num1) EditText _number1;
   @InjectView(R.id.double_binding_num2) EditText _number2;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
index a7ede1fe..923bac0e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -23,7 +23,7 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 
 public class FormValidationCombineLatestFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
   @InjectView(R.id.demo_combl_email) EditText _email;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 7c944392..fc1f916e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -12,7 +12,7 @@
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
 public class MainFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @Override
   public View onCreateView(LayoutInflater inflater,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
index 50c20c90..b91494c9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
@@ -27,7 +27,7 @@
 import timber.log.Timber;
 
 public class PollingFragment
-    extends Fragment {
+    extends BaseFragment {
 
   public static final int INITIAL_DELAY = 0;
   public static final int POLLING_INTERVAL = 1000;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
index d677e806..49274a0b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
@@ -30,7 +30,7 @@
 import static java.lang.String.format;
 
 public class PseudoCacheConcatFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.log_list) ListView _resultList;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 311020ad..777cd668 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -46,7 +46,7 @@
  * incapable of debounce    : this is the primary reason, since creating new observable everytime in subscription disregards debounce on subsequent calls
  */
 public class SubjectDebounceSearchEmitterFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @InjectView(R.id.list_threading_log) ListView _logsList;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index b1b84d10..8239c4b0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -19,7 +19,7 @@
 import timber.log.Timber;
 
 public class TimingDemoFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @Override
   public View onCreateView(LayoutInflater inflater,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index d9dd4c10..d8fd2b52 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -7,10 +7,11 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusDemoFragment
-    extends Fragment {
+    extends BaseFragment {
 
   @Override
   public View onCreateView(LayoutInflater inflater,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index b124d534..8e843c68 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -10,6 +10,7 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
+import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 import rx.functions.Action1;
@@ -18,7 +19,7 @@
 import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom1Fragment
-    extends Fragment {
+    extends BaseFragment {
 
   private RxBus _rxBus;
   private CompositeSubscription _subscriptions;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index c37023a2..375711c8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -10,6 +10,7 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
+import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 import java.util.List;
@@ -22,7 +23,7 @@
 import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom2Fragment
-    extends Fragment {
+    extends BaseFragment {
 
   private RxBus _rxBus;
   private CompositeSubscription _subscriptions;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index b04d84a6..ac3821f2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -10,6 +10,7 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
+import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.app.R;
 import java.util.List;
@@ -24,7 +25,7 @@
 import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom3Fragment
-    extends Fragment {
+    extends BaseFragment {
 
   private RxBus _rxBus;
   private CompositeSubscription _subscriptions;

From c905fc4b4d5b5935854b751d7bed332417135291 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 11:22:45 -0700
Subject: [PATCH 058/260] refactor: mass refactor exodus according to
 codestyles in kg's https://github.com/kaushikgopal/jetbrains_env repo

---
 .../android/rxjava/BufferDemoFragment.java    | 259 ++++++++-------
 ...ConcurrencyWithSchedulersDemoFragment.java | 251 +++++++-------
 .../android/rxjava/DemoTimeoutFragment.java   | 306 +++++++++---------
 .../rxjava/DoubleBindingTextViewFragment.java |  85 +++--
 .../FormValidationCombineLatestFragment.java  | 172 +++++-----
 .../android/rxjava/MainActivity.java          |  38 +--
 .../android/rxjava/MainFragment.java          | 185 +++++------
 .../com/morihacky/android/rxjava/MyApp.java   |   1 -
 .../android/rxjava/PollingFragment.java       | 199 ++++++------
 .../rxjava/PseudoCacheConcatFragment.java     | 218 ++++++-------
 .../android/rxjava/RetrofitFragment.java      | 297 ++++++++---------
 .../SubjectDebounceSearchEmitterFragment.java | 235 +++++++-------
 .../android/rxjava/TimingDemoFragment.java    |  96 +++---
 .../android/rxjava/retrofit/Contributor.java  |   4 +-
 .../android/rxjava/retrofit/GithubApi.java    |  22 +-
 .../android/rxjava/retrofit/User.java         |   4 +-
 .../morihacky/android/rxjava/rxbus/RxBus.java |  26 +-
 .../rxjava/rxbus/RxBusDemoFragment.java       |  44 +--
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  86 +++--
 .../rxbus/RxBusDemo_Bottom2Fragment.java      | 162 +++++-----
 .../rxbus/RxBusDemo_Bottom3Fragment.java      | 168 +++++-----
 .../rxjava/rxbus/RxBusDemo_TopFragment.java   |  41 ++-
 22 files changed, 1445 insertions(+), 1454 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index 7506b2c0..920896dd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -5,7 +5,6 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -34,140 +33,140 @@
  * as demonstrated in the case of {@link com.morihacky.android.rxjava.SubjectDebounceSearchEmitterFragment}
  */
 public class BufferDemoFragment
-    extends BaseFragment {
-
-  @InjectView(R.id.list_threading_log) ListView _logsList;
-  @InjectView(R.id.btn_start_operation) Button _tapBtn;
-
-  private LogAdapter _adapter;
-  private List<String> _logs;
-  private int _tapCount = 0;
-
-  private Subscription _subscription;
-
-  @Override
-  public void onResume() {
-    super.onResume();
-    _subscription = _getBufferedObservable().subscribe(_getObserver());
-  }
-
-  @Override
-  public void onPause() {
-    super.onPause();
-    _subscription.unsubscribe();
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _setupLogger();
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Main Rx entities
-
-  private Observable<List<Integer>> _getBufferedObservable() {
-
-    return Observable.create(new Observable.OnSubscribe<Integer>() {
-
-      @Override
-      public void call(Subscriber<? super Integer> subscriber) {
-        _tapBtn.setOnClickListener(new View.OnClickListener() {
-
-          @Override
-          public void onClick(View v) {
-            Timber.d("--------- GOT A TAP");
-            _tapCount += 1;
-            _log("GOT A TAP");
-          }
-        });
-      }
-    })
-        .buffer(2, TimeUnit.SECONDS)
-        .subscribeOn(Schedulers.io())
-        .observeOn(AndroidSchedulers.mainThread());
-  }
-
-  private Observer<List<Integer>> _getObserver() {
-    return new Observer<List<Integer>>() {
-
-      @Override
-      public void onCompleted() {
-        if (_tapCount > 0) {
-          _log(String.format("%d taps", _tapCount));
-          _tapCount = 0;
-        }
-      }
-
-      @Override
-      public void onError(Throwable e) {
-        Timber.e(e, "--------- Woops on error!");
-        _log(String.format("Dang error. check your logs"));
-      }
-
-      @Override
-      public void onNext(List<Integer> integers) {
-        Timber.d("--------- onNext");
-        if (integers.size() > 0) {
-          for (int i : integers) {
-            _tapCount += i;
-          }
+      extends BaseFragment {
+
+    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @InjectView(R.id.btn_start_operation) Button _tapBtn;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+    private int _tapCount = 0;
+
+    private Subscription _subscription;
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscription = _getBufferedObservable().subscribe(_getObserver());
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        _subscription.unsubscribe();
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Main Rx entities
+
+    private Observable<List<Integer>> _getBufferedObservable() {
+
+        return Observable.create(new Observable.OnSubscribe<Integer>() {
+
+            @Override
+            public void call(Subscriber<? super Integer> subscriber) {
+                _tapBtn.setOnClickListener(new View.OnClickListener() {
+
+                    @Override
+                    public void onClick(View v) {
+                        Timber.d("--------- GOT A TAP");
+                        _tapCount += 1;
+                        _log("GOT A TAP");
+                    }
+                });
+            }
+        })
+              .buffer(2, TimeUnit.SECONDS)
+              .subscribeOn(Schedulers.io())
+              .observeOn(AndroidSchedulers.mainThread());
+    }
+
+    private Observer<List<Integer>> _getObserver() {
+        return new Observer<List<Integer>>() {
+
+            @Override
+            public void onCompleted() {
+                if (_tapCount > 0) {
+                    _log(String.format("%d taps", _tapCount));
+                    _tapCount = 0;
+                }
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "--------- Woops on error!");
+                _log(String.format("Dang error. check your logs"));
+            }
+
+            @Override
+            public void onNext(List<Integer> integers) {
+                Timber.d("--------- onNext");
+                if (integers.size() > 0) {
+                    for (int i : integers) {
+                        _tapCount += i;
+                    }
+                } else {
+                    Timber.d("--------- No taps received ");
+                }
+                onCompleted();
+            }
+        };
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Methods that help wiring up the example (irrelevant to RxJava)
+
+    private void _setupLogger() {
+        _logs = new ArrayList<String>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
         } else {
-          Timber.d("--------- No taps received ");
-        }
-        onCompleted();
-      }
-    };
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Methods that help wiring up the example (irrelevant to RxJava)
-
-  private void _setupLogger() {
-    _logs = new ArrayList<String>();
-    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-    _logsList.setAdapter(_adapter);
-  }
-
-  private void _log(String logMsg) {
-
-    if (_isCurrentlyOnMainThread()) {
-      _logs.add(0, logMsg + " (main thread) ");
-      _adapter.clear();
-      _adapter.addAll(_logs);
-    } else {
-      _logs.add(0, logMsg + " (NOT main thread) ");
-
-      // You can only do below stuff on main thread.
-      new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-        @Override
-        public void run() {
-          _adapter.clear();
-          _adapter.addAll(_logs);
+            _logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
         }
-      });
     }
-  }
 
-  private boolean _isCurrentlyOnMainThread() {
-    return Looper.myLooper() == Looper.getMainLooper();
-  }
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
 
-  private class LogAdapter
-      extends ArrayAdapter<String> {
+    private class LogAdapter
+          extends ArrayAdapter<String> {
 
-    public LogAdapter(Context context, List<String> logs) {
-      super(context, R.layout.item_log, R.id.item_log, logs);
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
     }
-  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 235964ae..5e801079 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -5,7 +5,6 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -28,145 +27,145 @@
 import timber.log.Timber;
 
 public class ConcurrencyWithSchedulersDemoFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @InjectView(R.id.progress_operation_running) ProgressBar _progress;
-  @InjectView(R.id.list_threading_log) ListView _logsList;
+    @InjectView(R.id.progress_operation_running) ProgressBar _progress;
+    @InjectView(R.id.list_threading_log) ListView _logsList;
 
-  private LogAdapter _adapter;
-  private List<String> _logs;
-  private Subscription _subscription;
+    private LogAdapter _adapter;
+    private List<String> _logs;
+    private Subscription _subscription;
 
-  @Override
-  public void onDestroy() {
-    super.onDestroy();
-    if (_subscription != null) {
-      _subscription.unsubscribe();
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (_subscription != null) {
+            _subscription.unsubscribe();
+        }
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
     }
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _setupLogger();
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @OnClick(R.id.btn_start_operation)
-  public void startLongOperation() {
-
-    _progress.setVisibility(View.VISIBLE);
-    _log("Button Clicked");
-
-    _subscription = AppObservable.bindFragment(this, _getObservable())      // Observable
-        .subscribeOn(Schedulers.io())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(_getObserver());                             // Observer
-  }
-
-  private Observable<Boolean> _getObservable() {
-    return Observable.create(new Observable.OnSubscribe<Boolean>() {
-
-      @Override
-      public void call(Subscriber<? super Boolean> observer) {
-
-        _log("Within Observable");
-
-        _doSomeLongOperation_thatBlocksCurrentThread();
-        observer.onNext(true);
-        observer.onCompleted();
-      }
-    });
-  }
-
-  /**
-   * Observer that handles the result List<Integer> from Observable
-   * through the 3 important actions:
-   *
-   * 1. onCompleted
-   * 2. onError
-   * 3. onNext
-   */
-  private Observer<Boolean> _getObserver() {
-    return new Observer<Boolean>() {
-
-      @Override
-      public void onCompleted() {
-        _log("On complete");
-        _progress.setVisibility(View.INVISIBLE);
-      }
-
-      @Override
-      public void onError(Throwable e) {
-        Timber.e(e, "Error in RxJava Demo concurrency");
-        _log(String.format("Boo Error %s", e.getMessage()));
-        _progress.setVisibility(View.INVISIBLE);
-      }
-
-      @Override
-      public void onNext(Boolean aBoolean) {
-        _log(String.format("onNext with return value \"%b\"", aBoolean));
-      }
-    };
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Method that help wiring up the example (irrelevant to RxJava)
-
-  private void _doSomeLongOperation_thatBlocksCurrentThread() {
-    _log("performing long operation");
-
-    try {
-      Thread.sleep(3000);
-    } catch (InterruptedException e) {
-      Timber.d("Operation was interrupted");
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @OnClick(R.id.btn_start_operation)
+    public void startLongOperation() {
+
+        _progress.setVisibility(View.VISIBLE);
+        _log("Button Clicked");
+
+        _subscription = AppObservable.bindFragment(this, _getObservable())      // Observable
+              .subscribeOn(Schedulers.io())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(_getObserver());                             // Observer
     }
-  }
 
-  private void _log(String logMsg) {
+    private Observable<Boolean> _getObservable() {
+        return Observable.create(new Observable.OnSubscribe<Boolean>() {
+
+            @Override
+            public void call(Subscriber<? super Boolean> observer) {
 
-    if (_isCurrentlyOnMainThread()) {
-      _logs.add(0, logMsg + " (main thread) ");
-      _adapter.clear();
-      _adapter.addAll(_logs);
-    } else {
-      _logs.add(0, logMsg + " (NOT main thread) ");
+                _log("Within Observable");
 
-      // You can only do below stuff on main thread.
-      new Handler(Looper.getMainLooper()).post(new Runnable() {
+                _doSomeLongOperation_thatBlocksCurrentThread();
+                observer.onNext(true);
+                observer.onCompleted();
+            }
+        });
+    }
+
+    /**
+     * Observer that handles the result List<Integer> from Observable
+     * through the 3 important actions:
+     *
+     * 1. onCompleted
+     * 2. onError
+     * 3. onNext
+     */
+    private Observer<Boolean> _getObserver() {
+        return new Observer<Boolean>() {
+
+            @Override
+            public void onCompleted() {
+                _log("On complete");
+                _progress.setVisibility(View.INVISIBLE);
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "Error in RxJava Demo concurrency");
+                _log(String.format("Boo Error %s", e.getMessage()));
+                _progress.setVisibility(View.INVISIBLE);
+            }
+
+            @Override
+            public void onNext(Boolean aBoolean) {
+                _log(String.format("onNext with return value \"%b\"", aBoolean));
+            }
+        };
+    }
 
-        @Override
-        public void run() {
-          _adapter.clear();
-          _adapter.addAll(_logs);
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private void _doSomeLongOperation_thatBlocksCurrentThread() {
+        _log("performing long operation");
+
+        try {
+            Thread.sleep(3000);
+        } catch (InterruptedException e) {
+            Timber.d("Operation was interrupted");
         }
-      });
     }
-  }
 
-  private void _setupLogger() {
-    _logs = new ArrayList<String>();
-    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-    _logsList.setAdapter(_adapter);
-  }
+    private void _log(String logMsg) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ");
 
-  private boolean _isCurrentlyOnMainThread() {
-    return Looper.myLooper() == Looper.getMainLooper();
-  }
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
 
-  private class LogAdapter
-      extends ArrayAdapter<String> {
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
+        }
+    }
 
-    public LogAdapter(Context context, List<String> logs) {
-      super(context, R.layout.item_log, R.id.item_log, logs);
+    private void _setupLogger() {
+        _logs = new ArrayList<String>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
+
+    private class LogAdapter
+          extends ArrayAdapter<String> {
+
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
     }
-  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
index ca438fbe..ead3e0f4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
@@ -5,7 +5,6 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -28,162 +27,163 @@
 import timber.log.Timber;
 
 public class DemoTimeoutFragment
-    extends BaseFragment {
-
-  @InjectView(R.id.list_threading_log) ListView _logsList;
-
-  private LogAdapter _adapter;
-  private List<String> _logs;
-
-  private Subscription _subscription;
-
-  @Override
-  public void onDestroy() {
-    super.onDestroy();
-    _subscription.unsubscribe();
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _setupLogger();
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @OnClick(R.id.btn_demo_timeout_1_2s)
-  public void onStart2sTask() {
-    _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this,
-                                               _getObservableTask_2sToComplete())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(_getEventCompletionObserver());
-  }
-
-  @OnClick(R.id.btn_demo_timeout_1_5s)
-  public void onStart5sTask() {
-    _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this, _getObservableFor5sTask())
-        .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
-        .subscribeOn(Schedulers.computation())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(_getEventCompletionObserver());
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Main Rx entities
-
-  private Observable<String> _getObservableFor5sTask() {
-    return Observable.create(new Observable.OnSubscribe<String>() {
-
-      @Override
-      public void call(Subscriber<? super String> subscriber) {
-        _log(String.format("Starting a 5s task"));
-        subscriber.onNext("5 s");
-        try {
-          Thread.sleep(1200);
-        } catch (InterruptedException e) {
-          e.printStackTrace();
-        }
-        subscriber.onCompleted();
-      }
-    });
-  }
-
-  private Observable<String> _getObservableTask_2sToComplete() {
-    return Observable.create(new Observable.OnSubscribe<String>() {
-
-      @Override
-      public void call(Subscriber<? super String> subscriber) {
-        _log(String.format("Starting a 2s task"));
-        subscriber.onNext("2 s");
-        try {
-          Thread.sleep(2000);
-        } catch (InterruptedException e) {
-          e.printStackTrace();
-        }
-        subscriber.onCompleted();
-      }
-    }).subscribeOn(Schedulers.computation()).timeout(3, TimeUnit.SECONDS);
-  }
-
-  private Observable<? extends String> _getTimeoutObservable() {
-    return Observable.create(new Observable.OnSubscribe<String>() {
-
-      @Override
-      public void call(Subscriber<? super String> subscriber) {
-        _log("Timing out this task ...");
-        subscriber.onCompleted();
-      }
-    });
-  }
-
-  private Observer<String> _getEventCompletionObserver() {
-    return new Observer<String>() {
-
-      @Override
-      public void onCompleted() {
-        _log(String.format("task was completed"));
-      }
-
-      @Override
-      public void onError(Throwable e) {
-        _log(String.format("Dang a task timeout"));
-        onCompleted();
-        Timber.e(e, "Timeout Demo exception");
-      }
-
-      @Override
-      public void onNext(String taskType) {
-        _log(String.format("onNext %s task", taskType));
-      }
-    };
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Method that help wiring up the example (irrelevant to RxJava)
-
-  private void _setupLogger() {
-    _logs = new ArrayList<String>();
-    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-    _logsList.setAdapter(_adapter);
-  }
-
-  private void _log(String logMsg) {
-
-    if (_isCurrentlyOnMainThread()) {
-      _logs.add(0, logMsg + " (main thread) ");
-      _adapter.clear();
-      _adapter.addAll(_logs);
-    } else {
-      _logs.add(0, logMsg + " (NOT main thread) ");
-
-      // You can only do below stuff on main thread.
-      new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-        @Override
-        public void run() {
-          _adapter.clear();
-          _adapter.addAll(_logs);
+      extends BaseFragment {
+
+    @InjectView(R.id.list_threading_log) ListView _logsList;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    private Subscription _subscription;
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _subscription.unsubscribe();
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @OnClick(R.id.btn_demo_timeout_1_2s)
+    public void onStart2sTask() {
+        _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this,
+              _getObservableTask_2sToComplete())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(_getEventCompletionObserver());
+    }
+
+    @OnClick(R.id.btn_demo_timeout_1_5s)
+    public void onStart5sTask() {
+        _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this,
+              _getObservableFor5sTask())
+              .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
+              .subscribeOn(Schedulers.computation())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(_getEventCompletionObserver());
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Main Rx entities
+
+    private Observable<String> _getObservableFor5sTask() {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                _log(String.format("Starting a 5s task"));
+                subscriber.onNext("5 s");
+                try {
+                    Thread.sleep(1200);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                subscriber.onCompleted();
+            }
+        });
+    }
+
+    private Observable<String> _getObservableTask_2sToComplete() {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                _log(String.format("Starting a 2s task"));
+                subscriber.onNext("2 s");
+                try {
+                    Thread.sleep(2000);
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                subscriber.onCompleted();
+            }
+        }).subscribeOn(Schedulers.computation()).timeout(3, TimeUnit.SECONDS);
+    }
+
+    private Observable<? extends String> _getTimeoutObservable() {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+                _log("Timing out this task ...");
+                subscriber.onCompleted();
+            }
+        });
+    }
+
+    private Observer<String> _getEventCompletionObserver() {
+        return new Observer<String>() {
+
+            @Override
+            public void onCompleted() {
+                _log(String.format("task was completed"));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                _log(String.format("Dang a task timeout"));
+                onCompleted();
+                Timber.e(e, "Timeout Demo exception");
+            }
+
+            @Override
+            public void onNext(String taskType) {
+                _log(String.format("onNext %s task", taskType));
+            }
+        };
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private void _setupLogger() {
+        _logs = new ArrayList<String>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
         }
-      });
     }
-  }
 
-  private boolean _isCurrentlyOnMainThread() {
-    return Looper.myLooper() == Looper.getMainLooper();
-  }
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
 
-  private class LogAdapter
-      extends ArrayAdapter<String> {
+    private class LogAdapter
+          extends ArrayAdapter<String> {
 
-    public LogAdapter(Context context, List<String> logs) {
-      super(context, R.layout.item_log, R.id.item_log, logs);
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
     }
-  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
index 46788088..cd711470 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
@@ -1,13 +1,10 @@
 package com.morihacky.android.rxjava;
 
-import android.content.Context;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
 import android.widget.TextView;
 import butterknife.ButterKnife;
@@ -20,57 +17,57 @@
 import rx.subjects.PublishSubject;
 
 public class DoubleBindingTextViewFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @InjectView(R.id.double_binding_num1) EditText _number1;
-  @InjectView(R.id.double_binding_num2) EditText _number2;
-  @InjectView(R.id.double_binding_result) TextView _result;
+    @InjectView(R.id.double_binding_num1) EditText _number1;
+    @InjectView(R.id.double_binding_num2) EditText _number2;
+    @InjectView(R.id.double_binding_result) TextView _result;
 
-  Subscription _subscription;
-  PublishSubject<Float> _resultEmitterSubject;
+    Subscription _subscription;
+    PublishSubject<Float> _resultEmitterSubject;
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
-    ButterKnife.inject(this, layout);
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
+        ButterKnife.inject(this, layout);
 
-    _resultEmitterSubject = PublishSubject.create();
-    _subscription = _resultEmitterSubject.asObservable().subscribe(new Action1<Float>() {
-      @Override
-      public void call(Float aFloat) {
-        _result.setText(String.valueOf(aFloat));
-      }
-    });
+        _resultEmitterSubject = PublishSubject.create();
+        _subscription = _resultEmitterSubject.asObservable().subscribe(new Action1<Float>() {
+            @Override
+            public void call(Float aFloat) {
+                _result.setText(String.valueOf(aFloat));
+            }
+        });
 
-    onNumberChanged();
-    _number2.requestFocus();
+        onNumberChanged();
+        _number2.requestFocus();
 
-    return layout;
-  }
+        return layout;
+    }
 
-  @OnTextChanged({ R.id.double_binding_num1, R.id.double_binding_num2 })
-  public void onNumberChanged() {
-    float num1 = 0;
-    float num2 = 0;
+    @OnTextChanged({ R.id.double_binding_num1, R.id.double_binding_num2 })
+    public void onNumberChanged() {
+        float num1 = 0;
+        float num2 = 0;
 
-    if (!Strings.isNullOrEmpty(_number1.getText().toString())) {
-      num1 = Float.parseFloat(_number1.getText().toString());
-    }
+        if (!Strings.isNullOrEmpty(_number1.getText().toString())) {
+            num1 = Float.parseFloat(_number1.getText().toString());
+        }
 
-    if (!Strings.isNullOrEmpty(_number2.getText().toString())) {
-      num2 = Float.parseFloat(_number2.getText().toString());
-    }
+        if (!Strings.isNullOrEmpty(_number2.getText().toString())) {
+            num2 = Float.parseFloat(_number2.getText().toString());
+        }
 
-    _resultEmitterSubject.onNext(num1 + num2);
-  }
+        _resultEmitterSubject.onNext(num1 + num2);
+    }
 
-  @Override
-  public void onDestroyView() {
-    super.onDestroyView();
-    if (_subscription != null) {
-      _subscription.unsubscribe();
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        if (_subscription != null) {
+            _subscription.unsubscribe();
+        }
     }
-  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
index 923bac0e..0397dc50 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -23,97 +22,100 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 
 public class FormValidationCombineLatestFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @InjectView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
-  @InjectView(R.id.demo_combl_email) EditText _email;
-  @InjectView(R.id.demo_combl_password) EditText _password;
-  @InjectView(R.id.demo_combl_num) EditText _number;
+    @InjectView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
+    @InjectView(R.id.demo_combl_email) EditText _email;
+    @InjectView(R.id.demo_combl_password) EditText _password;
+    @InjectView(R.id.demo_combl_num) EditText _number;
 
-  private Observable<OnTextChangeEvent> _emailChangeObservable;
-  private Observable<OnTextChangeEvent> _passwordChangeObservable;
-  private Observable<OnTextChangeEvent> _numberChangeObservable;
+    private Observable<OnTextChangeEvent> _emailChangeObservable;
+    private Observable<OnTextChangeEvent> _passwordChangeObservable;
+    private Observable<OnTextChangeEvent> _numberChangeObservable;
 
-  private Subscription _subscription = null;
+    private Subscription _subscription = null;
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
-    ButterKnife.inject(this, layout);
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest,
+              container,
+              false);
+        ButterKnife.inject(this, layout);
 
-    _emailChangeObservable = WidgetObservable.text(_email);
-    _passwordChangeObservable = WidgetObservable.text(_password);
-    _numberChangeObservable = WidgetObservable.text(_number);
+        _emailChangeObservable = WidgetObservable.text(_email);
+        _passwordChangeObservable = WidgetObservable.text(_password);
+        _numberChangeObservable = WidgetObservable.text(_number);
 
-    _combineLatestEvents();
+        _combineLatestEvents();
 
-    return layout;
-  }
+        return layout;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        if (_subscription != null) {
+            _subscription.unsubscribe();
+        }
+    }
 
-  @Override
-  public void onPause() {
-    super.onPause();
-    if (_subscription != null) {
-      _subscription.unsubscribe();
+    private void _combineLatestEvents() {
+        _subscription = Observable.combineLatest(_emailChangeObservable,
+              _passwordChangeObservable,
+              _numberChangeObservable,
+              new Func3<OnTextChangeEvent, OnTextChangeEvent, OnTextChangeEvent, Boolean>() {
+                  @Override
+                  public Boolean call(OnTextChangeEvent onEmailChangeEvent,
+                                      OnTextChangeEvent onPasswordChangeEvent,
+                                      OnTextChangeEvent onNumberChangeEvent) {
+
+                      boolean emailValid = !isNullOrEmpty(onEmailChangeEvent.text().toString()) &&
+                                           EMAIL_ADDRESS.matcher(onEmailChangeEvent.text())
+                                                 .matches();
+                      if (!emailValid) {
+                          _email.setError("Invalid Email!");
+                      }
+
+                      boolean passValid = !isNullOrEmpty(onPasswordChangeEvent.text().toString()) &&
+                                          onPasswordChangeEvent.text().length() > 8;
+                      if (!passValid) {
+                          _password.setError("Invalid Password!");
+                      }
+
+                      boolean numValid = !isNullOrEmpty(onNumberChangeEvent.text().toString());
+                      if (numValid) {
+                          int num = Integer.parseInt(onNumberChangeEvent.text().toString());
+                          numValid = num > 0 && num <= 100;
+                      }
+                      if (!numValid) {
+                          _number.setError("Invalid Number!");
+                      }
+
+                      return emailValid && passValid && numValid;
+
+                  }
+              })//
+              .subscribe(new Observer<Boolean>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("completed");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "there was an eroor");
+                  }
+
+                  @Override
+                  public void onNext(Boolean formValid) {
+                      if (formValid) {
+                          _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
+                      } else {
+                          _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
+                      }
+                  }
+              });
     }
-  }
-
-  private void _combineLatestEvents() {
-    _subscription = Observable.combineLatest(_emailChangeObservable,
-        _passwordChangeObservable,
-        _numberChangeObservable,
-        new Func3<OnTextChangeEvent, OnTextChangeEvent, OnTextChangeEvent, Boolean>() {
-          @Override
-          public Boolean call(OnTextChangeEvent onEmailChangeEvent,
-                              OnTextChangeEvent onPasswordChangeEvent,
-                              OnTextChangeEvent onNumberChangeEvent) {
-
-            boolean emailValid = !isNullOrEmpty(onEmailChangeEvent.text().toString()) &&
-                                 EMAIL_ADDRESS.matcher(onEmailChangeEvent.text()).matches();
-            if (!emailValid) {
-              _email.setError("Invalid Email!");
-            }
-
-            boolean passValid = !isNullOrEmpty(onPasswordChangeEvent.text().toString()) &&
-                                onPasswordChangeEvent.text().length() > 8;
-            if (!passValid) {
-              _password.setError("Invalid Password!");
-            }
-
-            boolean numValid = !isNullOrEmpty(onNumberChangeEvent.text().toString());
-            if (numValid) {
-              int num = Integer.parseInt(onNumberChangeEvent.text().toString());
-              numValid = num > 0 && num <= 100;
-            }
-            if (!numValid) {
-              _number.setError("Invalid Number!");
-            }
-
-            return emailValid && passValid && numValid;
-
-          }
-        })//
-        .subscribe(new Observer<Boolean>() {
-          @Override
-          public void onCompleted() {
-            Timber.d("completed");
-          }
-
-          @Override
-          public void onError(Throwable e) {
-            Timber.e(e, "there was an eroor");
-          }
-
-          @Override
-          public void onNext(Boolean formValid) {
-            if (formValid) {
-              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
-            } else {
-              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
-            }
-          }
-        });
-  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 07204647..8ee623fe 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -7,29 +7,29 @@
 import timber.log.Timber;
 
 public class MainActivity
-    extends FragmentActivity {
+      extends FragmentActivity {
 
-  private RxBus _rxBus = null;
+    private RxBus _rxBus = null;
 
-  @Override
-  protected void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-    setContentView(R.layout.activity_main);
+    // This is better done with a DI Library like Dagger
+    public RxBus getRxBusSingleton() {
+        if (_rxBus == null) {
+            _rxBus = new RxBus();
+        }
 
-    Timber.plant(new Timber.DebugTree());
+        return _rxBus;
+    }
 
-    getSupportFragmentManager().beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new MainFragment(), this.toString())
-        .commit();
-  }
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
 
-  // This is better done with a DI Library like Dagger
-  public RxBus getRxBusSingleton() {
-    if (_rxBus == null) {
-      _rxBus = new RxBus();
-    }
+        Timber.plant(new Timber.DebugTree());
 
-    return _rxBus;
-  }
+        getSupportFragmentManager().beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new MainFragment(), this.toString())
+              .commit();
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index fc1f916e..ba0cdd9a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -12,104 +11,110 @@
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
 public class MainFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_main, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_main, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
 
-  @OnClick(R.id.btn_demo_schedulers)
-  public void demoConcurrencyWithSchedulers() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new ConcurrencyWithSchedulersDemoFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_schedulers)
+    public void demoConcurrencyWithSchedulers() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main,
+                    new ConcurrencyWithSchedulersDemoFragment(),
+                    this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_buffer)
-  public void demoBuffer() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new BufferDemoFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_buffer)
+    public void demoBuffer() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new BufferDemoFragment(), this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_subject_debounce)
-  public void demoThrottling() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new SubjectDebounceSearchEmitterFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_subject_debounce)
+    public void demoThrottling() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main,
+                    new SubjectDebounceSearchEmitterFragment(),
+                    this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_retrofit)
-  public void demoRetrofitCalls() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new RetrofitFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_retrofit)
+    public void demoRetrofitCalls() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new RetrofitFragment(), this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_double_binding_textview)
-  public void demoDoubleBindingWithPublishSubject() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new DoubleBindingTextViewFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_double_binding_textview)
+    public void demoDoubleBindingWithPublishSubject() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new DoubleBindingTextViewFragment(), this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_polling)
-  public void demoPolling() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new PollingFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_polling)
+    public void demoPolling() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new PollingFragment(), this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_rxbus)
-  public void demoRxBus() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_rxbus)
+    public void demoRxBus() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString())
+              .commit();
+    }
 
-  //@OnClick(R.id.btn_demo_subject_timeout)
-  public void demoTimeout() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new DemoTimeoutFragment(), this.toString())
-        .commit();
-  }
+    //@OnClick(R.id.btn_demo_subject_timeout)
+    public void demoTimeout() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new DemoTimeoutFragment(), this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_form_validation_combinel)
-  public void formValidation() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new FormValidationCombineLatestFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_form_validation_combinel)
+    public void formValidation() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main,
+                    new FormValidationCombineLatestFragment(),
+                    this.toString())
+              .commit();
+    }
 
-  @OnClick(R.id.btn_demo_pseudo_cache)
-  public void pseudoCacheDemo() {
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .addToBackStack(this.toString())
-        .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
-        .commit();
-  }
+    @OnClick(R.id.btn_demo_pseudo_cache)
+    public void pseudoCacheDemo() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
+              .commit();
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index 3a220768..4dad4cc7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -3,7 +3,6 @@
 import android.app.Application;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
-import timber.log.Timber;
 
 public class MyApp
       extends Application {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
index b91494c9..2dd7f7ae 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
@@ -5,7 +5,6 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -27,111 +26,111 @@
 import timber.log.Timber;
 
 public class PollingFragment
-    extends BaseFragment {
-
-  public static final int INITIAL_DELAY = 0;
-  public static final int POLLING_INTERVAL = 1000;
-  @InjectView(R.id.list_threading_log) ListView _logsList;
-
-  private LogAdapter _adapter;
-  private List<String> _logs;
-  private CompositeSubscription _subscriptions;
-  private int _counter = 0;
-
-  @Override
-  public void onDestroy() {
-    super.onDestroy();
-    _subscriptions.unsubscribe();
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _subscriptions = new CompositeSubscription();
-    _setupLogger();
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_polling, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @OnClick(R.id.btn_start_simple_polling)
-  public void onStartSimplePollingClicked() {
-    _subscriptions.add(Observable.create(new Observable.OnSubscribe<String>() {
-      @Override
-      public void call(final Subscriber<? super String> observer) {
-
-        Schedulers.newThread().createWorker() //
-            .schedulePeriodically(new Action0() {
-              @Override
-              public void call() {
-                observer.onNext(_doNetworkCallAndGetStringResult());
-              }
-            }, INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS);
-      }
-    }).take(10).subscribe(new Action1<String>() {
-      @Override
-      public void call(String s) {
-        _log(String.format("String polling - %s", s));
-      }
-    }));
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Method that help wiring up the example (irrelevant to RxJava)
-
-  private String _doNetworkCallAndGetStringResult() {
-
-    try {
-      Thread.sleep(3000);
-    } catch (InterruptedException e) {
-      Timber.d("Operation was interrupted");
+      extends BaseFragment {
+
+    public static final int INITIAL_DELAY = 0;
+    public static final int POLLING_INTERVAL = 1000;
+    @InjectView(R.id.list_threading_log) ListView _logsList;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+    private CompositeSubscription _subscriptions;
+    private int _counter = 0;
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _subscriptions.unsubscribe();
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _subscriptions = new CompositeSubscription();
+        _setupLogger();
     }
-    _counter++;
-
-    return String.valueOf(_counter);
-  }
-
-  private void _log(String logMsg) {
-    if (_isCurrentlyOnMainThread()) {
-      _logs.add(0, logMsg + " (main thread) ");
-      _adapter.clear();
-      _adapter.addAll(_logs);
-    } else {
-      _logs.add(0, logMsg + " (NOT main thread) ");
-
-      // You can only do below stuff on main thread.
-      new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-        @Override
-        public void run() {
-          _adapter.clear();
-          _adapter.addAll(_logs);
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_polling, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @OnClick(R.id.btn_start_simple_polling)
+    public void onStartSimplePollingClicked() {
+        _subscriptions.add(Observable.create(new Observable.OnSubscribe<String>() {
+            @Override
+            public void call(final Subscriber<? super String> observer) {
+
+                Schedulers.newThread().createWorker() //
+                      .schedulePeriodically(new Action0() {
+                          @Override
+                          public void call() {
+                              observer.onNext(_doNetworkCallAndGetStringResult());
+                          }
+                      }, INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS);
+            }
+        }).take(10).subscribe(new Action1<String>() {
+            @Override
+            public void call(String s) {
+                _log(String.format("String polling - %s", s));
+            }
+        }));
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private String _doNetworkCallAndGetStringResult() {
+
+        try {
+            Thread.sleep(3000);
+        } catch (InterruptedException e) {
+            Timber.d("Operation was interrupted");
         }
-      });
+        _counter++;
+
+        return String.valueOf(_counter);
     }
-  }
 
-  private void _setupLogger() {
-    _logs = new ArrayList<String>();
-    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-    _logsList.setAdapter(_adapter);
-  }
+    private void _log(String logMsg) {
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
+        }
+    }
 
-  private boolean _isCurrentlyOnMainThread() {
-    return Looper.myLooper() == Looper.getMainLooper();
-  }
+    private void _setupLogger() {
+        _logs = new ArrayList<String>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
 
-  private class LogAdapter
-      extends ArrayAdapter<String> {
+    private class LogAdapter
+          extends ArrayAdapter<String> {
 
-    public LogAdapter(Context context, List<String> logs) {
-      super(context, R.layout.item_log, R.id.item_log, logs);
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
     }
-  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
index 49274a0b..07e702d2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -30,123 +29,124 @@
 import static java.lang.String.format;
 
 public class PseudoCacheConcatFragment
-    extends BaseFragment {
-
-  @InjectView(R.id.log_list) ListView _resultList;
-
-  private Subscription _subscription = null;
-  private HashMap<String, Long> _contributionMap = null;
-  private ArrayAdapter<String> _adapter;
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-    ButterKnife.inject(this, layout);
-    _initializeCache();
-    return layout;
-  }
-
-  @Override
-  public void onPause() {
-    super.onPause();
-    if (_subscription != null) {
-      _subscription.unsubscribe();
+      extends BaseFragment {
+
+    @InjectView(R.id.log_list) ListView _resultList;
+
+    private Subscription _subscription = null;
+    private HashMap<String, Long> _contributionMap = null;
+    private ArrayAdapter<String> _adapter;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
+        ButterKnife.inject(this, layout);
+        _initializeCache();
+        return layout;
     }
-  }
-
-  @OnClick(R.id.btn_start_pseudo_cache)
-  public void onDemoPseudoCacheClicked() {
-    _adapter = new ArrayAdapter<>(getActivity(),
-        R.layout.item_log,
-        R.id.item_log,
-        new ArrayList<String>());
-
-    _resultList.setAdapter(_adapter);
-    _initializeCache();
-
-    Observable.concat(_getCachedData(), _getFreshData())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(new Subscriber<Contributor>() {
-          @Override
-          public void onCompleted() {
-            Timber.d("done loading all data");
-          }
-
-          @Override
-          public void onError(Throwable e) {
-            Timber.e(e, "arr something went wrong");
-          }
-
-          @Override
-          public void onNext(Contributor contributor) {
-            _contributionMap.put(contributor.login, contributor.contributions);
-            _adapter.clear();
-            _adapter.addAll(getListStringFromMap());
-          }
-        });
-  }
-
-  private List<String> getListStringFromMap() {
-    List<String> list = new ArrayList<>();
-
-    for (String username : _contributionMap.keySet()) {
-      String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
-      list.add(rowLog);
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        if (_subscription != null) {
+            _subscription.unsubscribe();
+        }
+    }
+
+    @OnClick(R.id.btn_start_pseudo_cache)
+    public void onDemoPseudoCacheClicked() {
+        _adapter = new ArrayAdapter<>(getActivity(),
+              R.layout.item_log,
+              R.id.item_log,
+              new ArrayList<String>());
+
+        _resultList.setAdapter(_adapter);
+        _initializeCache();
+
+        Observable.concat(_getCachedData(), _getFreshData())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      _contributionMap.put(contributor.login, contributor.contributions);
+                      _adapter.clear();
+                      _adapter.addAll(getListStringFromMap());
+                  }
+              });
+    }
+
+    private List<String> getListStringFromMap() {
+        List<String> list = new ArrayList<>();
+
+        for (String username : _contributionMap.keySet()) {
+            String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
+            list.add(rowLog);
+        }
+
+        return list;
     }
 
-    return list;
-  }
+    private Observable<Contributor> _getCachedData() {
+
+        List<Contributor> list = new ArrayList<>();
 
-  private Observable<Contributor> _getCachedData() {
+        for (String username : _contributionMap.keySet()) {
+            Contributor c = new Contributor();
+            c.login = username;
+            c.contributions = _contributionMap.get(username);
+            list.add(c);
+        }
 
-    List<Contributor> list = new ArrayList<>();
+        return Observable.from(list);
+    }
 
-    for (String username : _contributionMap.keySet()) {
-      Contributor c = new Contributor();
-      c.login = username;
-      c.contributions = _contributionMap.get(username);
-      list.add(c);
+    private Observable<Contributor> _getFreshData() {
+        return _createGithubApi().contributors("square", "retrofit")
+              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                  @Override
+                  public Observable<Contributor> call(List<Contributor> contributors) {
+                      return Observable.from(contributors);
+                  }
+              });
     }
 
-    return Observable.from(list);
-  }
-
-  private Observable<Contributor> _getFreshData() {
-    return _createGithubApi().contributors("square", "retrofit")
-        .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-          @Override
-          public Observable<Contributor> call(List<Contributor> contributors) {
-            return Observable.from(contributors);
-          }
-        });
-  }
-
-  private GithubApi _createGithubApi() {
-
-    RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint("https://api.github.com/");
-    //.setLogLevel(RestAdapter.LogLevel.FULL);
-
-    final String githubToken = getResources().getString(R.string.github_oauth_token);
-    if (!isNullOrEmpty(githubToken)) {
-      builder.setRequestInterceptor(new RequestInterceptor() {
-        @Override
-        public void intercept(RequestFacade request) {
-          request.addHeader("Authorization", format("token %s", githubToken));
+    private GithubApi _createGithubApi() {
+
+        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
+              "https://api.github.com/");
+        //.setLogLevel(RestAdapter.LogLevel.FULL);
+
+        final String githubToken = getResources().getString(R.string.github_oauth_token);
+        if (!isNullOrEmpty(githubToken)) {
+            builder.setRequestInterceptor(new RequestInterceptor() {
+                @Override
+                public void intercept(RequestFacade request) {
+                    request.addHeader("Authorization", format("token %s", githubToken));
+                }
+            });
         }
-      });
+
+        return builder.build().create(GithubApi.class);
     }
 
-    return builder.build().create(GithubApi.class);
-  }
-
-  private void _initializeCache() {
-    _contributionMap = new HashMap<>();
-    _contributionMap.put("JakeWharton", 0l);
-    _contributionMap.put("pforhan", 0l);
-    _contributionMap.put("edenman", 0l);
-    _contributionMap.put("swankjesse", 0l);
-    _contributionMap.put("bruceLee", 0l);
-  }
+    private void _initializeCache() {
+        _contributionMap = new HashMap<>();
+        _contributionMap.put("JakeWharton", 0l);
+        _contributionMap.put("pforhan", 0l);
+        _contributionMap.put("edenman", 0l);
+        _contributionMap.put("swankjesse", 0l);
+        _contributionMap.put("bruceLee", 0l);
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 8f37a25d..f282e1e1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -33,158 +33,161 @@
 import static java.lang.String.format;
 
 public class RetrofitFragment
-    extends Fragment {
-
-  @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
-  @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
-  @InjectView(R.id.log_list) ListView _resultList;
-
-  private GithubApi _api;
-  private ArrayAdapter<String> _adapter;
-
-  @Override
-  public void onCreate(Bundle savedInstanceState) {
-    super.onCreate(savedInstanceState);
-    _api = _createGithubApi();
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-
-    View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-    ButterKnife.inject(this, layout);
-
-    _adapter = new ArrayAdapter<>(getActivity(),
-        R.layout.item_log,
-        R.id.item_log,
-        new ArrayList<String>());
-    //_adapter.setNotifyOnChange(true);
-    _resultList.setAdapter(_adapter);
-
-    return layout;
-  }
-
-  @OnClick(R.id.btn_demo_retrofit_contributors)
-  public void onListContributorsClicked() {
-    _adapter.clear();
-
-    _api.contributors(_username.getText().toString(), _repo.getText().toString())
-        .subscribeOn(Schedulers.io())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(new Observer<List<Contributor>>() {
-          @Override
-          public void onCompleted() {
-            Timber.d("Retrofit call 1 completed");
-          }
-
-          @Override
-          public void onError(Throwable e) {
-            Timber.e(e, "woops we got an error while getting the list of contributors");
-          }
-
-          @Override
-          public void onNext(List<Contributor> contributors) {
-            for (Contributor c : contributors) {
-              _adapter.add(format("%s has made %d contributions to %s",
-                  c.login,
-                  c.contributions,
-                  _repo.getText().toString()));
-
-              Timber.d("%s has made %d contributions to %s",
-                  c.login,
-                  c.contributions,
-                  _repo.getText().toString());
-            }
-          }
-        });
-  }
-
-  @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
-  public void onListContributorsWithFullUserInfoClicked() {
-    _adapter.clear();
-
-    _api.contributors(_username.getText().toString(), _repo.getText().toString())
-        .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-          @Override
-          public Observable<Contributor> call(List<Contributor> contributors) {
-            return Observable.from(contributors);
-          }
-        })
-        .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
-          @Override
-          public Observable<Pair<User, Contributor>> call(Contributor contributor) {
-            Observable<User> _userObservable = _api.user(contributor.login)
-                .filter(new Func1<User, Boolean>() {
+      extends Fragment {
+
+    @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
+    @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
+    @InjectView(R.id.log_list) ListView _resultList;
+
+    private GithubApi _api;
+    private ArrayAdapter<String> _adapter;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        _api = _createGithubApi();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+
+        View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
+        ButterKnife.inject(this, layout);
+
+        _adapter = new ArrayAdapter<>(getActivity(),
+              R.layout.item_log,
+              R.id.item_log,
+              new ArrayList<String>());
+        //_adapter.setNotifyOnChange(true);
+        _resultList.setAdapter(_adapter);
+
+        return layout;
+    }
+
+    @OnClick(R.id.btn_demo_retrofit_contributors)
+    public void onListContributorsClicked() {
+        _adapter.clear();
+
+        _api.contributors(_username.getText().toString(), _repo.getText().toString())
+              .subscribeOn(Schedulers.io())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Observer<List<Contributor>>() {
                   @Override
-                  public Boolean call(User user) {
-                    return !isNullOrEmpty(user.name) && !isNullOrEmpty(user.email);
+                  public void onCompleted() {
+                      Timber.d("Retrofit call 1 completed");
                   }
-                });
 
-            return Observable.zip(_userObservable,
-                Observable.just(contributor),
-                new Func2<User, Contributor, Pair<User, Contributor>>() {
                   @Override
-                  public Pair<User, Contributor> call(User user, Contributor contributor) {
-                    return new Pair<>(user, contributor);
+                  public void onError(Throwable e) {
+                      Timber.e(e, "woops we got an error while getting the list of contributors");
                   }
-                });
-          }
-        })
-        .subscribeOn(Schedulers.newThread())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(new Observer<Pair<User, Contributor>>() {
-          @Override
-          public void onCompleted() {
-            Timber.d("Retrofit call 2 completed ");
-          }
-
-          @Override
-          public void onError(Throwable e) {
-            Timber.e(e, "error while getting the list of contributors along with full names");
-          }
-
-          @Override
-          public void onNext(Pair<User, Contributor> pair) {
-            User user = pair.first;
-            Contributor contributor = pair.second;
-
-            _adapter.add(format("%s(%s) has made %d contributions to %s",
-                user.name,
-                user.email,
-                contributor.contributions,
-                _repo.getText().toString()));
-
-            _adapter.notifyDataSetChanged();
-
-            Timber.d("%s(%s) has made %d contributions to %s",
-                user.name,
-                user.email,
-                contributor.contributions,
-                _repo.getText().toString());
-          }
-        });
-  }
-
-  // -----------------------------------------------------------------------------------
-
-  private GithubApi _createGithubApi() {
-
-    RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint("https://api.github.com/");
-    //.setLogLevel(RestAdapter.LogLevel.FULL);
-
-    final String githubToken = getResources().getString(R.string.github_oauth_token);
-    if (!isNullOrEmpty(githubToken)) {
-      builder.setRequestInterceptor(new RequestInterceptor() {
-        @Override
-        public void intercept(RequestFacade request) {
-          request.addHeader("Authorization", format("token %s", githubToken));
-        }
-      });
+
+                  @Override
+                  public void onNext(List<Contributor> contributors) {
+                      for (Contributor c : contributors) {
+                          _adapter.add(format("%s has made %d contributions to %s",
+                                c.login,
+                                c.contributions,
+                                _repo.getText().toString()));
+
+                          Timber.d("%s has made %d contributions to %s",
+                                c.login,
+                                c.contributions,
+                                _repo.getText().toString());
+                      }
+                  }
+              });
+    }
+
+    @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
+    public void onListContributorsWithFullUserInfoClicked() {
+        _adapter.clear();
+
+        _api.contributors(_username.getText().toString(), _repo.getText().toString())
+              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                  @Override
+                  public Observable<Contributor> call(List<Contributor> contributors) {
+                      return Observable.from(contributors);
+                  }
+              })
+              .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
+                  @Override
+                  public Observable<Pair<User, Contributor>> call(Contributor contributor) {
+                      Observable<User> _userObservable = _api.user(contributor.login)
+                            .filter(new Func1<User, Boolean>() {
+                                @Override
+                                public Boolean call(User user) {
+                                    return !isNullOrEmpty(user.name) && !isNullOrEmpty(user.email);
+                                }
+                            });
+
+                      return Observable.zip(_userObservable,
+                            Observable.just(contributor),
+                            new Func2<User, Contributor, Pair<User, Contributor>>() {
+                                @Override
+                                public Pair<User, Contributor> call(User user,
+                                                                    Contributor contributor) {
+                                    return new Pair<>(user, contributor);
+                                }
+                            });
+                  }
+              })
+              .subscribeOn(Schedulers.newThread())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Observer<Pair<User, Contributor>>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("Retrofit call 2 completed ");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e,
+                            "error while getting the list of contributors along with full names");
+                  }
+
+                  @Override
+                  public void onNext(Pair<User, Contributor> pair) {
+                      User user = pair.first;
+                      Contributor contributor = pair.second;
+
+                      _adapter.add(format("%s(%s) has made %d contributions to %s",
+                            user.name,
+                            user.email,
+                            contributor.contributions,
+                            _repo.getText().toString()));
+
+                      _adapter.notifyDataSetChanged();
+
+                      Timber.d("%s(%s) has made %d contributions to %s",
+                            user.name,
+                            user.email,
+                            contributor.contributions,
+                            _repo.getText().toString());
+                  }
+              });
     }
 
-    return builder.build().create(GithubApi.class);
-  }
+    // -----------------------------------------------------------------------------------
+
+    private GithubApi _createGithubApi() {
+
+        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
+              "https://api.github.com/");
+        //.setLogLevel(RestAdapter.LogLevel.FULL);
+
+        final String githubToken = getResources().getString(R.string.github_oauth_token);
+        if (!isNullOrEmpty(githubToken)) {
+            builder.setRequestInterceptor(new RequestInterceptor() {
+                @Override
+                public void intercept(RequestFacade request) {
+                    request.addHeader("Authorization", format("token %s", githubToken));
+                }
+            });
+        }
+
+        return builder.build().create(GithubApi.class);
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 777cd668..01dcbde4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -5,7 +5,6 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -46,133 +45,133 @@
  * incapable of debounce    : this is the primary reason, since creating new observable everytime in subscription disregards debounce on subsequent calls
  */
 public class SubjectDebounceSearchEmitterFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @InjectView(R.id.list_threading_log) ListView _logsList;
+    @InjectView(R.id.list_threading_log) ListView _logsList;
 
-  private LogAdapter _adapter;
-  private List<String> _logs;
+    private LogAdapter _adapter;
+    private List<String> _logs;
 
-  private Subscription _subscription;
-  private PublishSubject<Observable<String>> _searchTextEmitterSubject;
+    private Subscription _subscription;
+    private PublishSubject<Observable<String>> _searchTextEmitterSubject;
 
-  @OnTextChanged(R.id.input_txt_subject_debounce)
-  public void onTextEntered(CharSequence charsEntered) {
-    Timber.d("---------- text entered %s", charsEntered);
-    _searchTextEmitterSubject.onNext(_getASearchObservableFor(charsEntered.toString()));
-  }
+    @OnTextChanged(R.id.input_txt_subject_debounce)
+    public void onTextEntered(CharSequence charsEntered) {
+        Timber.d("---------- text entered %s", charsEntered);
+        _searchTextEmitterSubject.onNext(_getASearchObservableFor(charsEntered.toString()));
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (_subscription != null) {
+            _subscription.unsubscribe();
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_subject_debounce, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+
+        _searchTextEmitterSubject = PublishSubject.create();
+        _subscription = AppObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
+              Observable.switchOnNext(_searchTextEmitterSubject))
+              .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(_getSearchObserver());
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Main Rx entities
+
+    private Observer<String> _getSearchObserver() {
+        return new Observer<String>() {
+
+            @Override
+            public void onCompleted() {
+                Timber.d("--------- onComplete");
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "--------- Woops on error!");
+                _log(String.format("Dang error. check your logs"));
+            }
+
+            @Override
+            public void onNext(String searchText) {
+                _log(String.format("onNext You searched for %s", searchText));
+                onCompleted();
+            }
+        };
+    }
 
-  @Override
-  public void onDestroy() {
-    super.onDestroy();
-    if (_subscription != null) {
-      _subscription.unsubscribe();
+    /**
+     * @param searchText search text entered onTextChange
+     * @return a new observable which searches for text searchText, explicitly say you want subscription to be done on a a non-UI thread, otherwise it'll default to the main thread.
+     */
+    private Observable<String> _getASearchObservableFor(final String searchText) {
+        return Observable.create(new Observable.OnSubscribe<String>() {
+
+            @Override
+            public void call(Subscriber<? super String> subscriber) {
+
+                Timber.d("----------- inside the search observable");
+                subscriber.onNext(searchText);
+                // subscriber.onCompleted(); This seems to have no effect.
+            }
+        }).subscribeOn(Schedulers.io());
     }
-  }
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_subject_debounce, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _setupLogger();
-
-    _searchTextEmitterSubject = PublishSubject.create();
-    _subscription = AppObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
-                                               Observable.switchOnNext(_searchTextEmitterSubject))
-        .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
-        .observeOn(AndroidSchedulers.mainThread())
-        .subscribe(_getSearchObserver());
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Main Rx entities
-
-  private Observer<String> _getSearchObserver() {
-    return new Observer<String>() {
-
-      @Override
-      public void onCompleted() {
-        Timber.d("--------- onComplete");
-      }
-
-      @Override
-      public void onError(Throwable e) {
-        Timber.e(e, "--------- Woops on error!");
-        _log(String.format("Dang error. check your logs"));
-      }
-
-      @Override
-      public void onNext(String searchText) {
-        _log(String.format("onNext You searched for %s", searchText));
-        onCompleted();
-      }
-    };
-  }
-
-  /**
-   * @param searchText search text entered onTextChange
-   * @return a new observable which searches for text searchText, explicitly say you want subscription to be done on a a non-UI thread, otherwise it'll default to the main thread.
-   */
-  private Observable<String> _getASearchObservableFor(final String searchText) {
-    return Observable.create(new Observable.OnSubscribe<String>() {
-
-      @Override
-      public void call(Subscriber<? super String> subscriber) {
-
-        Timber.d("----------- inside the search observable");
-        subscriber.onNext(searchText);
-        // subscriber.onCompleted(); This seems to have no effect.
-      }
-    }).subscribeOn(Schedulers.io());
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Method that help wiring up the example (irrelevant to RxJava)
-
-  private void _setupLogger() {
-    _logs = new ArrayList<String>();
-    _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
-    _logsList.setAdapter(_adapter);
-  }
-
-  private void _log(String logMsg) {
-
-    if (_isCurrentlyOnMainThread()) {
-      _logs.add(0, logMsg + " (main thread) ");
-      _adapter.clear();
-      _adapter.addAll(_logs);
-    } else {
-      _logs.add(0, logMsg + " (NOT main thread) ");
-
-      // You can only do below stuff on main thread.
-      new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-        @Override
-        public void run() {
-          _adapter.clear();
-          _adapter.addAll(_logs);
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private void _setupLogger() {
+        _logs = new ArrayList<String>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
         }
-      });
     }
-  }
 
-  private boolean _isCurrentlyOnMainThread() {
-    return Looper.myLooper() == Looper.getMainLooper();
-  }
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
 
-  private class LogAdapter
-      extends ArrayAdapter<String> {
+    private class LogAdapter
+          extends ArrayAdapter<String> {
 
-    public LogAdapter(Context context, List<String> logs) {
-      super(context, R.layout.item_log, R.id.item_log, logs);
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
     }
-  }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index 8239c4b0..d070e75f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -10,7 +9,6 @@
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.app.R;
 import java.util.concurrent.TimeUnit;
-import rx.Notification;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Action0;
@@ -19,56 +17,54 @@
 import timber.log.Timber;
 
 public class TimingDemoFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_timing_demo, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_timing_demo, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
 
-  @OnClick(R.id.btn_start_demo)
-  public void onStartButtonClicked() {
-    Timber.d("-------------------- Shutter clicked");
+    @OnClick(R.id.btn_start_demo)
+    public void onStartButtonClicked() {
+        Timber.d("-------------------- Shutter clicked");
 
-    Observable.just(1)
-        .flatMap(new Func1<Integer, Observable<Object>>() {
-          @Override
-          public Observable<Object> call(Integer integer) {
-            return _getCountdownFlashObservable();
-          }
-        })
-        .repeat(3)
-        .subscribe();
-  }
+        Observable.just(1).flatMap(new Func1<Integer, Observable<Object>>() {
+            @Override
+            public Observable<Object> call(Integer integer) {
+                return _getCountdownFlashObservable();
+            }
+        }).repeat(3).subscribe();
+    }
 
-  private Observable<Object> _getCountdownFlashObservable() {
-    return Observable.interval(1, TimeUnit.SECONDS)
-        .map(new Func1<Long, Object>() {
-          @Override
-          public Object call(Long aLong) {
-            Timber.d("-------------------- Number to show %s", String.valueOf(3l - aLong));
-            return 3l - aLong;
-          }
-        })
-        .take(3)
-        .observeOn(AndroidSchedulers.mainThread())
-        .doOnNext(new Action1<Object>() {
-          @Override
-          public void call(Object o) {
-            Timber.d("-------------------- %s", String.valueOf(o));
-          }
-        })
-        .delay(1, TimeUnit.SECONDS)
-        .observeOn(AndroidSchedulers.mainThread())
-        .doOnCompleted(new Action0() {
-          @Override
-          public void call() {
-            Timber.d("-------------------- FLASH!");
-          }
-        });
-  }
+    private Observable<Object> _getCountdownFlashObservable() {
+        return Observable.interval(1, TimeUnit.SECONDS)
+              .map(new Func1<Long, Object>() {
+                  @Override
+                  public Object call(Long aLong) {
+                      Timber.d("-------------------- Number to show %s",
+                            String.valueOf(3l - aLong));
+                      return 3l - aLong;
+                  }
+              })
+              .take(3)
+              .observeOn(AndroidSchedulers.mainThread())
+              .doOnNext(new Action1<Object>() {
+                  @Override
+                  public void call(Object o) {
+                      Timber.d("-------------------- %s", String.valueOf(o));
+                  }
+              })
+              .delay(1, TimeUnit.SECONDS)
+              .observeOn(AndroidSchedulers.mainThread())
+              .doOnCompleted(new Action0() {
+                  @Override
+                  public void call() {
+                      Timber.d("-------------------- FLASH!");
+                  }
+              });
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
index 5bd61c7a..ad7760fc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
@@ -1,6 +1,6 @@
 package com.morihacky.android.rxjava.retrofit;
 
 public class Contributor {
-  public String login;
-  public long contributions;
+    public String login;
+    public long contributions;
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
index d25a883d..9b606382 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -7,16 +7,16 @@
 
 public interface GithubApi {
 
-  /**
-   * See https://developer.github.com/v3/repos/#list-contributors
-   */
-  @GET("/repos/{owner}/{repo}/contributors")
-  Observable<List<Contributor>> contributors(@Path("owner") String owner,
-                                             @Path("repo") String repo);
+    /**
+     * See https://developer.github.com/v3/repos/#list-contributors
+     */
+    @GET("/repos/{owner}/{repo}/contributors")
+    Observable<List<Contributor>> contributors(@Path("owner") String owner,
+                                               @Path("repo") String repo);
 
-  /**
-   * See https://developer.github.com/v3/users/
-   */
-  @GET("/users/{user}")
-  Observable<User> user(@Path("user") String user);
+    /**
+     * See https://developer.github.com/v3/users/
+     */
+    @GET("/users/{user}")
+    Observable<User> user(@Path("user") String user);
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
index 90f7aa3d..32fa1043 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
@@ -1,6 +1,6 @@
 package com.morihacky.android.rxjava.retrofit;
 
 public class User {
-  public String name;
-  public String email;
+    public String name;
+    public String email;
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index afaa595c..83f61f46 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -10,21 +10,21 @@
  */
 public class RxBus {
 
-  //private final PublishSubject<Object> _bus = PublishSubject.create();
+    //private final PublishSubject<Object> _bus = PublishSubject.create();
 
-  // If multiple threads are going to emit events to this
-  // then it must be made thread-safe like this instead
-  private final Subject<Object, Object> _bus = new SerializedSubject<>(PublishSubject.create());
+    // If multiple threads are going to emit events to this
+    // then it must be made thread-safe like this instead
+    private final Subject<Object, Object> _bus = new SerializedSubject<>(PublishSubject.create());
 
-  public void send(Object o) {
-    _bus.onNext(o);
-  }
+    public void send(Object o) {
+        _bus.onNext(o);
+    }
 
-  public Observable<Object> toObserverable() {
-    return _bus;
-  }
+    public Observable<Object> toObserverable() {
+        return _bus;
+    }
 
-  public boolean hasObservers() {
-    return _bus.hasObservers();
-  }
+    public boolean hasObservers() {
+        return _bus.hasObservers();
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index d8fd2b52..d1512d29 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -11,29 +10,30 @@
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusDemoFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
 
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
 
-    getActivity().getSupportFragmentManager()
-        .beginTransaction()
-        .replace(R.id.demo_rxbus_frag_1, new RxBusDemo_TopFragment())
-        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom3Fragment())
-        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom2Fragment())
-        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom1Fragment())
-        .commit();
-  }
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .replace(R.id.demo_rxbus_frag_1,
+                    new RxBusDemo_TopFragment()).replace(R.id.demo_rxbus_frag_2,
+              new RxBusDemo_Bottom3Fragment())
+              //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom2Fragment())
+              //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom1Fragment())
+              .commit();
+    }
 
-  public static class TapEvent {}
+    public static class TapEvent {}
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 8e843c68..365786ce 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v4.view.ViewCompat;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -19,54 +18,53 @@
 import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom1Fragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  private RxBus _rxBus;
-  private CompositeSubscription _subscriptions;
+    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    private RxBus _rxBus;
+    private CompositeSubscription _subscriptions;
 
-  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+    }
 
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-  }
+    @Override
+    public void onStart() {
+        super.onStart();
+        _subscriptions = new CompositeSubscription();
 
-  @Override
-  public void onStart() {
-    super.onStart();
-    _subscriptions = new CompositeSubscription();
+        _subscriptions//
+              .add(bindFragment(this, _rxBus.toObserverable())//
+                    .subscribe(new Action1<Object>() {
+                        @Override
+                        public void call(Object event) {
+                            if (event instanceof RxBusDemoFragment.TapEvent) {
+                                _showTapText();
+                            }
+                        }
+                    }));
+    }
 
-    _subscriptions//
-        .add(bindFragment(this, _rxBus.toObserverable())//
-                 .subscribe(new Action1<Object>() {
-                   @Override
-                   public void call(Object event) {
-                     if (event instanceof RxBusDemoFragment.TapEvent) {
-                       _showTapText();
-                     }
-                   }
-                 }));
-  }
+    @Override
+    public void onStop() {
+        super.onStop();
+        _subscriptions.unsubscribe();
+    }
 
-  private void _showTapText() {
-    _tapEventTxtShow.setVisibility(View.VISIBLE);
-    _tapEventTxtShow.setAlpha(1f);
-    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
-  }
-
-  @Override
-  public void onStop() {
-    super.onStop();
-    _subscriptions.unsubscribe();
-  }
+    private void _showTapText() {
+        _tapEventTxtShow.setVisibility(View.VISIBLE);
+        _tapEventTxtShow.setAlpha(1f);
+        ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 375711c8..4d7801b5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v4.view.ViewCompat;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -23,85 +22,84 @@
 import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom2Fragment
-    extends BaseFragment {
-
-  private RxBus _rxBus;
-  private CompositeSubscription _subscriptions;
-
-  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-  @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-  }
-
-  @Override
-  public void onStart() {
-    super.onStart();
-    _subscriptions = new CompositeSubscription();
-
-    Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
-
-    _subscriptions//
-        .add(bindFragment(this, tapEventEmitter)//
-                 .subscribe(new Action1<Object>() {
-                   @Override
-                   public void call(Object event) {
-                     if (event instanceof RxBusDemoFragment.TapEvent) {
-                       _showTapText();
-                     }
-                   }
-                 }));
-
-    Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
-    Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
-
-    _subscriptions//
-        .add(debouncedBufferEmitter//
-                 .observeOn(AndroidSchedulers.mainThread())//
-                 .subscribe(new Action1<List<Object>>() {
-                   @Override
-                   public void call(List<Object> taps) {
-                     _showTapCount(taps.size());
-                   }
-                 }));
-  }
-
-  @Override
-  public void onStop() {
-    super.onStop();
-    _subscriptions.unsubscribe();
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Helper to show the text via an animation
-
-  private void _showTapText() {
-    _tapEventTxtShow.setVisibility(View.VISIBLE);
-    _tapEventTxtShow.setAlpha(1f);
-    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
-  }
-
-  private void _showTapCount(int size) {
-    _tapEventCountShow.setText(String.valueOf(size));
-    _tapEventCountShow.setVisibility(View.VISIBLE);
-    _tapEventCountShow.setScaleX(1f);
-    _tapEventCountShow.setScaleY(1f);
-    ViewCompat.animate(_tapEventCountShow)
-        .scaleXBy(-1f)
-        .scaleYBy(-1f)
-        .setDuration(800)
-        .setStartDelay(100);
-  }
+      extends BaseFragment {
+
+    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    private RxBus _rxBus;
+    private CompositeSubscription _subscriptions;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        _subscriptions = new CompositeSubscription();
+
+        Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
+
+        _subscriptions//
+              .add(bindFragment(this, tapEventEmitter)//
+                    .subscribe(new Action1<Object>() {
+                        @Override
+                        public void call(Object event) {
+                            if (event instanceof RxBusDemoFragment.TapEvent) {
+                                _showTapText();
+                            }
+                        }
+                    }));
+
+        Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
+        Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
+
+        _subscriptions//
+              .add(debouncedBufferEmitter//
+                    .observeOn(AndroidSchedulers.mainThread())//
+                    .subscribe(new Action1<List<Object>>() {
+                        @Override
+                        public void call(List<Object> taps) {
+                            _showTapCount(taps.size());
+                        }
+                    }));
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        _subscriptions.unsubscribe();
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Helper to show the text via an animation
+
+    private void _showTapText() {
+        _tapEventTxtShow.setVisibility(View.VISIBLE);
+        _tapEventTxtShow.setAlpha(1f);
+        ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+    }
+
+    private void _showTapCount(int size) {
+        _tapEventCountShow.setText(String.valueOf(size));
+        _tapEventCountShow.setVisibility(View.VISIBLE);
+        _tapEventCountShow.setScaleX(1f);
+        _tapEventCountShow.setScaleY(1f);
+        ViewCompat.animate(_tapEventCountShow)
+              .scaleXBy(-1f)
+              .scaleYBy(-1f)
+              .setDuration(800)
+              .setStartDelay(100);
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index ac3821f2..703dd370 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v4.view.ViewCompat;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -25,88 +24,87 @@
 import static rx.android.app.AppObservable.bindFragment;
 
 public class RxBusDemo_Bottom3Fragment
-    extends BaseFragment {
-
-  private RxBus _rxBus;
-  private CompositeSubscription _subscriptions;
-
-  @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-  @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
-
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
-
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-  }
-
-  @Override
-  public void onStart() {
-    super.onStart();
-    _subscriptions = new CompositeSubscription();
-
-    ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
-
-    _subscriptions//
-        .add(bindFragment(this, tapEventEmitter)//
-                 .subscribe(new Action1<Object>() {
-                   @Override
-                   public void call(Object event) {
-                     if (event instanceof RxBusDemoFragment.TapEvent) {
-                       _showTapText();
-                     }
-                   }
-                 }));
-
-    _subscriptions//
-        .add(tapEventEmitter.publish(new Func1<Observable<Object>, Observable<List<Object>>>() {
-          @Override
-          public Observable<List<Object>> call(Observable<Object> stream) {
-            return stream.buffer(stream.debounce(1, TimeUnit.SECONDS));
-          }
-        }).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<List<Object>>() {
-          @Override
-          public void call(List<Object> taps) {
-            _showTapCount(taps.size());
-          }
-        }));
-
-    _subscriptions.add(tapEventEmitter.connect());
-
-  }
-
-  @Override
-  public void onStop() {
-    super.onStop();
-    _subscriptions.clear();
-  }
-
-  // -----------------------------------------------------------------------------------
-  // Helper to show the text via an animation
-
-  private void _showTapText() {
-    _tapEventTxtShow.setVisibility(View.VISIBLE);
-    _tapEventTxtShow.setAlpha(1f);
-    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
-  }
-
-  private void _showTapCount(int size) {
-    _tapEventCountShow.setText(String.valueOf(size));
-    _tapEventCountShow.setVisibility(View.VISIBLE);
-    _tapEventCountShow.setScaleX(1f);
-    _tapEventCountShow.setScaleY(1f);
-    ViewCompat.animate(_tapEventCountShow)
-        .scaleXBy(-1f)
-        .scaleYBy(-1f)
-        .setDuration(800)
-        .setStartDelay(100);
-  }
+      extends BaseFragment {
+
+    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    private RxBus _rxBus;
+    private CompositeSubscription _subscriptions;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        _subscriptions = new CompositeSubscription();
+
+        ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
+
+        _subscriptions//
+              .add(bindFragment(this, tapEventEmitter)//
+                    .subscribe(new Action1<Object>() {
+                        @Override
+                        public void call(Object event) {
+                            if (event instanceof RxBusDemoFragment.TapEvent) {
+                                _showTapText();
+                            }
+                        }
+                    }));
+
+        _subscriptions//
+              .add(tapEventEmitter.publish(new Func1<Observable<Object>, Observable<List<Object>>>() {
+                  @Override
+                  public Observable<List<Object>> call(Observable<Object> stream) {
+                      return stream.buffer(stream.debounce(1, TimeUnit.SECONDS));
+                  }
+              }).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<List<Object>>() {
+                  @Override
+                  public void call(List<Object> taps) {
+                      _showTapCount(taps.size());
+                  }
+              }));
+
+        _subscriptions.add(tapEventEmitter.connect());
+
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        _subscriptions.clear();
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Helper to show the text via an animation
+
+    private void _showTapText() {
+        _tapEventTxtShow.setVisibility(View.VISIBLE);
+        _tapEventTxtShow.setAlpha(1f);
+        ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+    }
+
+    private void _showTapCount(int size) {
+        _tapEventCountShow.setText(String.valueOf(size));
+        _tapEventCountShow.setVisibility(View.VISIBLE);
+        _tapEventCountShow.setScaleX(1f);
+        _tapEventCountShow.setScaleY(1f);
+        ViewCompat.animate(_tapEventCountShow)
+              .scaleXBy(-1f)
+              .scaleYBy(-1f)
+              .setDuration(800)
+              .setStartDelay(100);
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index b7c8eaf9..e846446e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -13,29 +12,29 @@
 import com.morihacky.android.rxjava.app.R;
 
 public class RxBusDemo_TopFragment
-    extends BaseFragment {
+      extends BaseFragment {
 
-  private RxBus _rxBus;
+    private RxBus _rxBus;
 
-  @Override
-  public View onCreateView(LayoutInflater inflater,
-                           @Nullable ViewGroup container,
-                           @Nullable Bundle savedInstanceState) {
-    View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
-    ButterKnife.inject(this, layout);
-    return layout;
-  }
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
 
-  @Override
-  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-    super.onActivityCreated(savedInstanceState);
-    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-  }
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+    }
 
-  @OnClick(R.id.btn_demo_rxbus_tap)
-  public void onTapButtonClicked() {
-    if (_rxBus.hasObservers()) {
-      _rxBus.send(new RxBusDemoFragment.TapEvent());
+    @OnClick(R.id.btn_demo_rxbus_tap)
+    public void onTapButtonClicked() {
+        if (_rxBus.hasObservers()) {
+            _rxBus.send(new RxBusDemoFragment.TapEvent());
+        }
     }
-  }
 }

From 1453c4ea50b02455112c76516f1b36ff8a2d1d30 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 11:34:43 -0700
Subject: [PATCH 059/260] fix: changed package name to remove app

---
 .../java/com/morihacky/android/rxjava/BufferDemoFragment.java   | 2 +-
 .../android/rxjava/ConcurrencyWithSchedulersDemoFragment.java   | 2 +-
 .../java/com/morihacky/android/rxjava/DemoTimeoutFragment.java  | 2 +-
 .../morihacky/android/rxjava/DoubleBindingTextViewFragment.java | 2 +-
 .../android/rxjava/FormValidationCombineLatestFragment.java     | 2 +-
 .../main/java/com/morihacky/android/rxjava/MainActivity.java    | 2 +-
 .../main/java/com/morihacky/android/rxjava/MainFragment.java    | 2 +-
 .../main/java/com/morihacky/android/rxjava/PollingFragment.java | 2 +-
 .../com/morihacky/android/rxjava/PseudoCacheConcatFragment.java | 2 +-
 .../java/com/morihacky/android/rxjava/RetrofitFragment.java     | 2 +-
 .../android/rxjava/SubjectDebounceSearchEmitterFragment.java    | 2 +-
 .../java/com/morihacky/android/rxjava/TimingDemoFragment.java   | 1 -
 .../com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java   | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java         | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java         | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java         | 2 +-
 .../morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java   | 2 +-
 17 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index 920896dd..16b177e7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -13,7 +13,7 @@
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 5e801079..15f33371 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -14,7 +14,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
index ead3e0f4..d5067356 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
@@ -13,7 +13,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
index cd711470..7a7ce56e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
@@ -11,7 +11,7 @@
 import butterknife.InjectView;
 import butterknife.OnTextChanged;
 import com.google.common.base.Strings;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import rx.Subscription;
 import rx.functions.Action1;
 import rx.subjects.PublishSubject;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
index 0397dc50..93bc7183 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -9,7 +9,7 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 8ee623fe..612a9444 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -2,7 +2,7 @@
 
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 import timber.log.Timber;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index ba0cdd9a..962b2699 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -7,7 +7,7 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
 public class MainFragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
index 2dd7f7ae..6f163e26 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
@@ -13,7 +13,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
index 07e702d2..623d9cdd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
@@ -10,7 +10,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import java.util.ArrayList;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index f282e1e1..04195e3b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -13,7 +13,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 01dcbde4..6e147698 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -13,7 +13,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnTextChanged;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index d070e75f..3fac0ad8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -7,7 +7,6 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.app.R;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index d1512d29..058fc66a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -7,7 +7,7 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.BaseFragment;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 
 public class RxBusDemoFragment
       extends BaseFragment {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 365786ce..332ad4dd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -11,7 +11,7 @@
 import butterknife.InjectView;
 import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 4d7801b5..9bc91364 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -11,7 +11,7 @@
 import butterknife.InjectView;
 import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index 703dd370..e3e144a8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -11,7 +11,7 @@
 import butterknife.InjectView;
 import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index e846446e..8686a161 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -9,7 +9,7 @@
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
-import com.morihacky.android.rxjava.app.R;
+import com.morihacky.android.rxjava.R;
 
 public class RxBusDemo_TopFragment
       extends BaseFragment {

From 141ae1740a4cdecb10cc193361032d0c32c57dca Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 11:38:45 -0700
Subject: [PATCH 060/260] refactor: mass reformat exodus as per new code style

---
 app/src/main/res/layout/activity_main.xml     |  3 +-
 app/src/main/res/layout/fragment_buffer.xml   | 12 ++++---
 .../fragment_concurrency_schedulers.xml       | 18 ++++++----
 .../fragment_double_binding_textview.xml      | 23 +++++++-----
 app/src/main/res/layout/fragment_main.xml     | 33 +++++++++++------
 app/src/main/res/layout/fragment_polling.xml  | 18 ++++++----
 app/src/main/res/layout/fragment_retrofit.xml | 35 ++++++++++++-------
 .../main/res/layout/fragment_rxbus_bottom.xml |  9 +++--
 .../main/res/layout/fragment_rxbus_demo.xml   |  9 +++--
 .../main/res/layout/fragment_rxbus_frag3.xml  |  6 ++--
 .../main/res/layout/fragment_rxbus_top.xml    |  9 +++--
 .../res/layout/fragment_subject_debounce.xml  | 12 ++++---
 .../res/layout/fragment_subject_timeout.xml   | 18 ++++++----
 .../main/res/layout/fragment_timing_demo.xml  |  6 ++--
 app/src/main/res/layout/item_log.xml          |  3 +-
 15 files changed, 142 insertions(+), 72 deletions(-)

diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 438a8d65..bcdf97bb 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -2,4 +2,5 @@
     android:id="@+id/activity_main"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android" />
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    />
diff --git a/app/src/main/res/layout/fragment_buffer.xml b/app/src/main/res/layout/fragment_buffer.xml
index 7839dacd..f2bbaadf 100644
--- a/app/src/main/res/layout/fragment_buffer.xml
+++ b/app/src/main/res/layout/fragment_buffer.xml
@@ -4,14 +4,16 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_buffer"/>
+        android:text="@string/msg_demo_buffer"
+        />
 
     <Button
         android:id="@+id/btn_start_operation"
@@ -20,11 +22,13 @@
         android:layout_marginLeft="90dp"
         android:layout_marginRight="90dp"
         android:textSize="16dp"
-        android:text="tap me"/>
+        android:text="tap me"
+        />
 
     <ListView
         android:id="@+id/list_threading_log"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_concurrency_schedulers.xml b/app/src/main/res/layout/fragment_concurrency_schedulers.xml
index 5d75665d..52656011 100644
--- a/app/src/main/res/layout/fragment_concurrency_schedulers.xml
+++ b/app/src/main/res/layout/fragment_concurrency_schedulers.xml
@@ -4,19 +4,22 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_concurrency_schedulers"/>
+        android:text="@string/msg_demo_concurrency_schedulers"
+        />
 
 
     <LinearLayout
         android:layout_height="wrap_content"
-        android:layout_width="match_parent">
+        android:layout_width="match_parent"
+        >
 
         <Button
             android:id="@+id/btn_start_operation"
@@ -24,18 +27,21 @@
             android:layout_width="wrap_content"
             android:layout_marginLeft="20dp"
             android:textSize="16sp"
-            android:text="Start long operation"/>
+            android:text="Start long operation"
+            />
 
         <ProgressBar
             android:id="@+id/progress_operation_running"
             android:visibility="invisible"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
-            android:layout_marginLeft="20dp"/>
+            android:layout_marginLeft="20dp"
+            />
     </LinearLayout>
 
     <ListView
         android:id="@+id/list_threading_log"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_double_binding_textview.xml b/app/src/main/res/layout/fragment_double_binding_textview.xml
index 98fd8fee..9681c441 100644
--- a/app/src/main/res/layout/fragment_double_binding_textview.xml
+++ b/app/src/main/res/layout/fragment_double_binding_textview.xml
@@ -4,19 +4,22 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_doublebinding"/>
+        android:text="@string/msg_demo_doublebinding"
+        />
 
     <LinearLayout
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        android:layout_marginTop="10dp">
+        android:layout_marginTop="10dp"
+        >
 
         <EditText
             android:id="@+id/double_binding_num1"
@@ -24,24 +27,27 @@
             android:layout_height="50dp"
             android:layout_width="0dp"
             android:gravity="center"
+            android:text="100"
             android:inputType="numberDecimal"
-            android:text="100"/>
+            />
 
         <TextView
             android:layout_weight="1"
             android:layout_height="50dp"
             android:layout_width="0dp"
             android:gravity="center"
-            android:text="+"/>
+            android:text="+"
+            />
 
         <EditText
             android:id="@+id/double_binding_num2"
             android:layout_weight="1"
             android:layout_height="50dp"
             android:layout_width="0dp"
-            android:inputType="numberDecimal"
             android:gravity="center"
-            android:text="8"/>
+            android:text="8"
+            android:inputType="numberDecimal"
+            />
     </LinearLayout>
 
     <TextView
@@ -51,6 +57,7 @@
         android:layout_marginTop="10dp"
         android:gravity="center"
         android:textSize="45sp"
-        android:text="0"/>
+        android:text="0"
+        />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index a130d795..db915ec2 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -1,7 +1,8 @@
 <ScrollView
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <LinearLayout
         android:orientation="vertical"
@@ -13,60 +14,70 @@
         android:paddingRight="@dimen/activity_horizontal_margin"
         xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:tools="http://schemas.android.com/tools"
-        tools:context=".DemoActivity">
+        tools:context=".DemoActivity"
+        >
 
         <Button
             android:id="@+id/btn_demo_schedulers"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_schedulers"/>
+            android:text="@string/btn_demo_schedulers"
+            />
 
         <Button
             android:id="@+id/btn_demo_buffer"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_buffer"/>
+            android:text="@string/btn_demo_buffer"
+            />
 
         <Button
             android:id="@+id/btn_demo_subject_debounce"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_subject_debounce"/>
+            android:text="@string/btn_demo_subject_debounce"
+            />
 
         <Button
             android:id="@+id/btn_demo_retrofit"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_retrofit"/>
+            android:text="@string/btn_demo_retrofit"
+            />
 
         <Button
             android:id="@+id/btn_demo_double_binding_textview"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_double_binding_textview"/>
+            android:text="@string/btn_demo_double_binding_textview"
+            />
 
         <Button
             android:id="@+id/btn_demo_polling"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_polling"/>
+            android:text="@string/btn_demo_polling"
+            />
 
         <Button
             android:id="@+id/btn_demo_rxbus"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_rxbus"/>
+            android:text="@string/btn_demo_rxbus"
+            />
 
         <Button
             android:id="@+id/btn_demo_form_validation_combinel"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_form_validation_combinel"/>
+            android:text="@string/btn_demo_form_validation_combinel"
+            />
 
         <Button
             android:id="@+id/btn_demo_pseudo_cache"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_pseudo_cache"/>
+            android:text="@string/btn_demo_pseudo_cache"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_polling.xml b/app/src/main/res/layout/fragment_polling.xml
index a79b2ebb..930c7e5a 100644
--- a/app/src/main/res/layout/fragment_polling.xml
+++ b/app/src/main/res/layout/fragment_polling.xml
@@ -4,19 +4,22 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_polling"/>
+        android:text="@string/msg_demo_polling"
+        />
 
 
     <LinearLayout
         android:layout_height="wrap_content"
-        android:layout_width="match_parent">
+        android:layout_width="match_parent"
+        >
 
         <Button
             android:id="@+id/btn_start_simple_polling"
@@ -24,7 +27,8 @@
             android:layout_width="wrap_content"
             android:layout_marginLeft="20dp"
             android:textSize="16sp"
-            android:text="Start simple polling"/>
+            android:text="Start simple polling"
+            />
 
         <Button
             android:id="@+id/btn_start_increasingly_delayed_polling"
@@ -32,11 +36,13 @@
             android:layout_width="wrap_content"
             android:layout_marginLeft="20dp"
             android:textSize="16sp"
-            android:text="Start increasingly delayed polling"/>
+            android:text="Start increasingly delayed polling"
+            />
     </LinearLayout>
 
     <ListView
         android:id="@+id/list_threading_log"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_retrofit.xml b/app/src/main/res/layout/fragment_retrofit.xml
index c121fe28..285a22a4 100644
--- a/app/src/main/res/layout/fragment_retrofit.xml
+++ b/app/src/main/res/layout/fragment_retrofit.xml
@@ -4,18 +4,21 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_retrofit"/>
+        android:text="@string/msg_demo_retrofit"
+        />
 
     <LinearLayout
         android:layout_height="wrap_content"
-        android:layout_width="match_parent">
+        android:layout_width="match_parent"
+        >
 
         <Button
             android:id="@+id/btn_demo_retrofit_contributors"
@@ -23,7 +26,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="14sp"
-            android:text="Log contributors of:"/>
+            android:text="Log contributors of:"
+            />
 
         <EditText
             android:id="@+id/demo_retrofit_contributors_username"
@@ -32,7 +36,8 @@
             android:layout_width="0dip"
             android:textSize="12sp"
             android:text="square"
-            android:hint="owner"/>
+            android:hint="owner"
+            />
 
         <EditText
             android:id="@+id/demo_retrofit_contributors_repository"
@@ -41,11 +46,14 @@
             android:layout_width="0dip"
             android:textSize="12sp"
             android:text="retrofit"
-            android:hint="reponame"/>
+            android:hint="reponame"
+            />
     </LinearLayout>
+
     <LinearLayout
         android:layout_height="wrap_content"
-        android:layout_width="match_parent">
+        android:layout_width="match_parent"
+        >
 
         <Button
             android:id="@+id/btn_demo_retrofit_contributors_with_user_info"
@@ -53,7 +61,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="14sp"
-            android:text="Log with full User Info:"/>
+            android:text="Log with full User Info:"
+            />
 
         <EditText
             android:id="@+id/demo_retrofit_contributors_with_user_info_username"
@@ -62,7 +71,8 @@
             android:layout_width="0dip"
             android:textSize="12sp"
             android:text="square"
-            android:hint="owner"/>
+            android:hint="owner"
+            />
 
         <EditText
             android:id="@+id/demo_retrofit_contributors_with_user_info_repository"
@@ -71,13 +81,14 @@
             android:layout_width="0dip"
             android:textSize="12sp"
             android:text="retrofit"
-            android:hint="reponame"/>
+            android:hint="reponame"
+            />
     </LinearLayout>
 
     <ListView
         android:id="@+id/log_list"
+        android:layout_height="match_parent"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
-    </ListView>
+        ></ListView>
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_bottom.xml b/app/src/main/res/layout/fragment_rxbus_bottom.xml
index e155c8c3..d309db86 100644
--- a/app/src/main/res/layout/fragment_rxbus_bottom.xml
+++ b/app/src/main/res/layout/fragment_rxbus_bottom.xml
@@ -3,7 +3,8 @@
     android:background="@color/blue"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:id="@+id/demo_rxbus_tap_count"
@@ -13,7 +14,8 @@
         android:layout_width="wrap_content"
         android:textSize="@dimen/text_xxlarge"
         android:textColor="@android:color/white"
-        android:text="1"/>
+        android:text="1"
+        />
 
     <TextView
         android:id="@+id/demo_rxbus_tap_txt"
@@ -24,5 +26,6 @@
         android:paddingBottom="@dimen/activity_vertical_margin"
         android:textSize="@dimen/text_large"
         android:textColor="@android:color/white"
-        android:text="tap!"/>
+        android:text="tap!"
+        />
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_demo.xml b/app/src/main/res/layout/fragment_rxbus_demo.xml
index 7e1d74c1..250c5391 100644
--- a/app/src/main/res/layout/fragment_rxbus_demo.xml
+++ b/app/src/main/res/layout/fragment_rxbus_demo.xml
@@ -7,18 +7,21 @@
     android:layout_height="match_parent"
     android:layout_width="match_parent"
     android:minHeight="220dp"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <FrameLayout
         android:id="@+id/demo_rxbus_frag_1"
         android:layout_weight="1"
         android:layout_height="0dp"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 
     <FrameLayout
         android:id="@+id/demo_rxbus_frag_2"
         android:layout_weight="1"
         android:layout_height="0dp"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 
 </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_rxbus_frag3.xml b/app/src/main/res/layout/fragment_rxbus_frag3.xml
index 29f8c8b6..5ba6621b 100644
--- a/app/src/main/res/layout/fragment_rxbus_frag3.xml
+++ b/app/src/main/res/layout/fragment_rxbus_frag3.xml
@@ -2,11 +2,13 @@
 <FrameLayout
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <ListView
         android:id="@+id/list_threading_log"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_top.xml b/app/src/main/res/layout/fragment_rxbus_top.xml
index 16352181..58a17ef5 100644
--- a/app/src/main/res/layout/fragment_rxbus_top.xml
+++ b/app/src/main/res/layout/fragment_rxbus_top.xml
@@ -3,14 +3,16 @@
     android:background="@color/green"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_gravity="center_horizontal"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:gravity="center"
-        android:text="@string/msg_demo_rxbus_1"/>
+        android:text="@string/msg_demo_rxbus_1"
+        />
 
     <Button
         android:id="@+id/btn_demo_rxbus_tap"
@@ -20,6 +22,7 @@
         android:layout_width="90dp"
         android:textSize="@dimen/text_xlarge"
         android:textColor="@android:color/white"
-        android:text="Tap"/>
+        android:text="Tap"
+        />
 
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_subject_debounce.xml b/app/src/main/res/layout/fragment_subject_debounce.xml
index 25485839..18ef8179 100644
--- a/app/src/main/res/layout/fragment_subject_debounce.xml
+++ b/app/src/main/res/layout/fragment_subject_debounce.xml
@@ -4,24 +4,28 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_subject"/>
+        android:text="@string/msg_demo_subject"
+        />
 
     <EditText
         android:id="@+id/input_txt_subject_debounce"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:textSize="16sp"
-        android:hint="Enter some search text"/>
+        android:hint="Enter some search text"
+        />
 
     <ListView
         android:id="@+id/list_threading_log"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_subject_timeout.xml b/app/src/main/res/layout/fragment_subject_timeout.xml
index 1a4e9cf8..237e6df2 100644
--- a/app/src/main/res/layout/fragment_subject_timeout.xml
+++ b/app/src/main/res/layout/fragment_subject_timeout.xml
@@ -4,37 +4,43 @@
     android:orientation="vertical"
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <TextView
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_timeout"/>
+        android:text="@string/msg_demo_timeout"
+        />
 
     <LinearLayout
         android:layout_height="wrap_content"
-        android:layout_width="match_parent">
+        android:layout_width="match_parent"
+        >
 
         <Button
             android:id="@+id/btn_demo_timeout_1_2s"
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="0dip"
-            android:text="Button 1"/>
+            android:text="Button 1"
+            />
 
         <Button
             android:id="@+id/btn_demo_timeout_1_5s"
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="0dip"
-            android:text="Button 2"/>
+            android:text="Button 2"
+            />
 
     </LinearLayout>
 
     <ListView
         android:id="@+id/list_threading_log"
         android:layout_height="match_parent"
-        android:layout_width="match_parent"/>
+        android:layout_width="match_parent"
+        />
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_timing_demo.xml b/app/src/main/res/layout/fragment_timing_demo.xml
index 2e3c485d..31a1d616 100644
--- a/app/src/main/res/layout/fragment_timing_demo.xml
+++ b/app/src/main/res/layout/fragment_timing_demo.xml
@@ -3,11 +3,13 @@
 <FrameLayout
     android:layout_height="match_parent"
     android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
 
     <Button
         android:id="@+id/btn_start_demo"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
-        android:text="Start"/>
+        android:text="Start"
+        />
 </FrameLayout>
diff --git a/app/src/main/res/layout/item_log.xml b/app/src/main/res/layout/item_log.xml
index e1e27d78..b21212b2 100644
--- a/app/src/main/res/layout/item_log.xml
+++ b/app/src/main/res/layout/item_log.xml
@@ -6,4 +6,5 @@
     android:layout_width="match_parent"
     android:textSize="12sp"
     android:text="Item Log goes here"
-    xmlns:android="http://schemas.android.com/apk/res/android"/>
\ No newline at end of file
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    />
\ No newline at end of file

From c7247cf164468f265c85ad1a6964fbc32dd3be0f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 11:54:54 -0700
Subject: [PATCH 061/260] refactor: change timer to timeout demo fragment

---
 .../java/com/morihacky/android/rxjava/MainFragment.java    | 3 +--
 .../{DemoTimeoutFragment.java => TimeoutDemoFragment.java} | 7 +++----
 .../{fragment_timing_demo.xml => fragment_timer_demo.xml}  | 0
 3 files changed, 4 insertions(+), 6 deletions(-)
 rename app/src/main/java/com/morihacky/android/rxjava/{DemoTimeoutFragment.java => TimeoutDemoFragment.java} (96%)
 rename app/src/main/res/layout/{fragment_timing_demo.xml => fragment_timer_demo.xml} (100%)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 962b2699..dc054b05 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -7,7 +7,6 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
 public class MainFragment
@@ -94,7 +93,7 @@ public void demoTimeout() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
               .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new DemoTimeoutFragment(), this.toString())
+              .replace(R.id.activity_main, new TimeoutDemoFragment(), this.toString())
               .commit();
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
similarity index 96%
rename from app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
index d5067356..69a39576 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DemoTimeoutFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
@@ -13,7 +13,6 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
@@ -26,7 +25,7 @@
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
-public class DemoTimeoutFragment
+public class TimeoutDemoFragment
       extends BaseFragment {
 
     @InjectView(R.id.list_threading_log) ListView _logsList;
@@ -59,7 +58,7 @@ public View onCreateView(LayoutInflater inflater,
 
     @OnClick(R.id.btn_demo_timeout_1_2s)
     public void onStart2sTask() {
-        _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this,
+        _subscription = AppObservable.bindFragment(TimeoutDemoFragment.this,
               _getObservableTask_2sToComplete())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_getEventCompletionObserver());
@@ -67,7 +66,7 @@ public void onStart2sTask() {
 
     @OnClick(R.id.btn_demo_timeout_1_5s)
     public void onStart5sTask() {
-        _subscription = AppObservable.bindFragment(DemoTimeoutFragment.this,
+        _subscription = AppObservable.bindFragment(TimeoutDemoFragment.this,
               _getObservableFor5sTask())
               .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
               .subscribeOn(Schedulers.computation())
diff --git a/app/src/main/res/layout/fragment_timing_demo.xml b/app/src/main/res/layout/fragment_timer_demo.xml
similarity index 100%
rename from app/src/main/res/layout/fragment_timing_demo.xml
rename to app/src/main/res/layout/fragment_timer_demo.xml

From fb503349696c591aeb49eb3a87ad5c591b087eab Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 12:04:23 -0700
Subject: [PATCH 062/260] feat: wip: add wiring for Timing demo

---
 .../android/rxjava/MainFragment.java          | 10 +++
 .../android/rxjava/TimingDemoFragment.java    |  2 +-
 .../main/res/layout/fragment_demo_timing.xml  | 67 +++++++++++++++++++
 app/src/main/res/layout/fragment_main.xml     | 11 ++-
 app/src/main/res/values/strings.xml           |  4 +-
 5 files changed, 90 insertions(+), 4 deletions(-)
 create mode 100644 app/src/main/res/layout/fragment_demo_timing.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index dc054b05..2ebf26ff 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -116,4 +116,14 @@ public void pseudoCacheDemo() {
               .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
               .commit();
     }
+
+    @OnClick(R.id.btn_demo_timing)
+    public void demoTimerIntervalDelays() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new TimingDemoFragment(), this.toString())
+              .commit();
+    }
+
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index 3fac0ad8..9391215b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -22,7 +22,7 @@ public class TimingDemoFragment
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_timing_demo, container, false);
+        View layout = inflater.inflate(R.layout.fragment_demo_timing, container, false);
         ButterKnife.inject(this, layout);
         return layout;
     }
diff --git a/app/src/main/res/layout/fragment_demo_timing.xml b/app/src/main/res/layout/fragment_demo_timing.xml
new file mode 100644
index 00000000..ce6c2ea7
--- /dev/null
+++ b/app/src/main/res/layout/fragment_demo_timing.xml
@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+
+    <TableLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        >
+
+        <TableRow
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            >
+
+            <Button
+                android:id="@+id/btn_demo_timing_1"
+                android:layout_weight="1"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:text="run once after a delay"
+                />
+
+            <Button
+                android:id="@+id/btn_demo_timing_3"
+                android:layout_weight="1"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:text="run at intervals (start with delay)"
+                />
+        </TableRow>
+
+        <TableRow
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            >
+
+            <Button
+                android:id="@+id/btn_demo_timing_2"
+                android:layout_weight="1"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:text="run 5 times at specific intervals"
+                />
+
+            <Button
+                android:id="@+id/btn_demo_timing_4"
+                android:layout_weight="1"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:text="intervals (but start immediately)"
+                />
+        </TableRow>
+    </TableLayout>
+
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index db915ec2..8c2b918b 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -6,7 +6,7 @@
 
     <LinearLayout
         android:orientation="vertical"
-        android:layout_height="match_parent"
+        android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:paddingTop="@dimen/activity_vertical_margin"
         android:paddingBottom="@dimen/activity_vertical_margin"
@@ -77,7 +77,14 @@
             android:id="@+id/btn_demo_pseudo_cache"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_pseudo_cache"
+            android:text="@string/btn_demo_pseudocache"
+            />
+
+        <Button
+            android:id="@+id/btn_demo_timing"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_timing"
             />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7f917a33..123ff9c9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -15,7 +15,8 @@
     <string name="btn_demo_polling">Polling with RxJava</string>
     <string name="btn_demo_rxbus">Event Bus with RxJava</string>
     <string name="btn_demo_form_validation_combinel">Form Validation with CombineLatest</string>
-    <string name="btn_demo_pseudo_cache">Pseudo cache using concat</string>
+    <string name="btn_demo_pseudocache">Pseudo cache using concat</string>
+    <string name="btn_demo_timing">Variations of timing/intervals/delays</string>
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
@@ -26,4 +27,5 @@
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>
+    <string name="msg_demo_timing">Demo of how you can use timing/interval/delay and play with the timings of when your events are emitted</string>
 </resources>

From 42570beab403832598ee06d17a146de5833ff79b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 14:07:27 -0700
Subject: [PATCH 063/260] feat: timing demo - run once with delay then complete

---
 .../android/rxjava/TimeoutDemoFragment.java   |  12 +-
 .../android/rxjava/TimingDemoFragment.java    | 105 ++++++++++++------
 .../android/rxjava/wiring/LogAdapter.java     |  14 +++
 .../main/res/layout/fragment_demo_timing.xml  |   8 +-
 4 files changed, 88 insertions(+), 51 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
index 69a39576..e70f6620 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
@@ -1,6 +1,5 @@
 package com.morihacky.android.rxjava;
 
-import android.content.Context;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -8,11 +7,11 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
@@ -148,7 +147,7 @@ public void onNext(String taskType) {
     // Method that help wiring up the example (irrelevant to RxJava)
 
     private void _setupLogger() {
-        _logs = new ArrayList<String>();
+        _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
         _logsList.setAdapter(_adapter);
     }
@@ -178,11 +177,4 @@ private boolean _isCurrentlyOnMainThread() {
         return Looper.myLooper() == Looper.getMainLooper();
     }
 
-    private class LogAdapter
-          extends ArrayAdapter<String> {
-
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
-    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index 9391215b..c14c1a3b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -1,23 +1,42 @@
 package com.morihacky.android.rxjava;
 
 import android.os.Bundle;
+import android.os.Handler;
 import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ListView;
 import butterknife.ButterKnife;
+import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Action0;
-import rx.functions.Action1;
-import rx.functions.Func1;
+import rx.Observer;
 import timber.log.Timber;
 
+import static android.os.Looper.getMainLooper;
+import static android.os.Looper.myLooper;
+
 public class TimingDemoFragment
       extends BaseFragment {
 
+    @InjectView(R.id.list_threading_log) ListView _logsList;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
@@ -27,43 +46,55 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
-    @OnClick(R.id.btn_start_demo)
-    public void onStartButtonClicked() {
-        Timber.d("-------------------- Shutter clicked");
+    // -----------------------------------------------------------------------------------
+
+    @OnClick(R.id.btn_demo_timing_1)
+    public void onRunOnceWithDelay() {
+        _log(String.format("C1 [%s] --- BTN click", _getCurrentTimestamp()));
+
+        Observable.just(1).delay(1, TimeUnit.SECONDS).subscribe(new Observer<Integer>() {
+            @Override
+            public void onCompleted() {
+                _log(String.format("C1 [%s] XX COMPLETE", _getCurrentTimestamp()));
+            }
 
-        Observable.just(1).flatMap(new Func1<Integer, Observable<Object>>() {
             @Override
-            public Observable<Object> call(Integer integer) {
-                return _getCountdownFlashObservable();
+            public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
             }
-        }).repeat(3).subscribe();
+
+            @Override
+            public void onNext(Integer integer) {
+                _log(String.format("C1 [%s]     NEXT", _getCurrentTimestamp()));
+            }
+        });
     }
 
-    private Observable<Object> _getCountdownFlashObservable() {
-        return Observable.interval(1, TimeUnit.SECONDS)
-              .map(new Func1<Long, Object>() {
-                  @Override
-                  public Object call(Long aLong) {
-                      Timber.d("-------------------- Number to show %s",
-                            String.valueOf(3l - aLong));
-                      return 3l - aLong;
-                  }
-              })
-              .take(3)
-              .observeOn(AndroidSchedulers.mainThread())
-              .doOnNext(new Action1<Object>() {
-                  @Override
-                  public void call(Object o) {
-                      Timber.d("-------------------- %s", String.valueOf(o));
-                  }
-              })
-              .delay(1, TimeUnit.SECONDS)
-              .observeOn(AndroidSchedulers.mainThread())
-              .doOnCompleted(new Action0() {
-                  @Override
-                  public void call() {
-                      Timber.d("-------------------- FLASH!");
-                  }
-              });
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private void _setupLogger() {
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
     }
+
+    private void _log(String logMsg) {
+        _logs.add(0, String.format(logMsg + " [MainThread: %b]", getMainLooper() == myLooper()));
+
+        // You can only do below stuff on main thread.
+        new Handler(getMainLooper()).post(new Runnable() {
+
+            @Override
+            public void run() {
+                _adapter.clear();
+                _adapter.addAll(_logs);
+            }
+        });
+    }
+
+    private String _getCurrentTimestamp() {
+        return new SimpleDateFormat("k:m:s:S a").format(new Date());
+    }
+
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java
new file mode 100644
index 00000000..0c0ea1e9
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java
@@ -0,0 +1,14 @@
+package com.morihacky.android.rxjava.wiring;
+
+import android.content.Context;
+import android.widget.ArrayAdapter;
+import com.morihacky.android.rxjava.R;
+import java.util.List;
+
+public class LogAdapter
+      extends ArrayAdapter<String> {
+
+    public LogAdapter(Context context, List<String> logs) {
+        super(context, R.layout.item_log, R.id.item_log, logs);
+    }
+}
diff --git a/app/src/main/res/layout/fragment_demo_timing.xml b/app/src/main/res/layout/fragment_demo_timing.xml
index ce6c2ea7..0a3399c9 100644
--- a/app/src/main/res/layout/fragment_demo_timing.xml
+++ b/app/src/main/res/layout/fragment_demo_timing.xml
@@ -22,7 +22,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="run once after a delay"
+                android:text="C1: run once after a delay"
                 />
 
             <Button
@@ -30,7 +30,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="run at intervals (start with delay)"
+                android:text="C3: run at intervals (start with delay)"
                 />
         </TableRow>
 
@@ -44,7 +44,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="run 5 times at specific intervals"
+                android:text="C2: run 5 times at specific intervals"
                 />
 
             <Button
@@ -52,7 +52,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="intervals (but start immediately)"
+                android:text="C4: intervals (but start immediately)"
                 />
         </TableRow>
     </TableLayout>

From 91cbb7cad630f5d751132c334883bf37c4906474 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 15:34:05 -0700
Subject: [PATCH 064/260] feat: run task 5 times with interval then complete +
 refactor: cleanup presentation

---
 .../android/rxjava/TimingDemoFragment.java    | 32 ++++++++++++++++---
 .../main/res/layout/fragment_demo_timing.xml  | 29 +++++++++++++----
 app/src/main/res/values/strings.xml           |  2 +-
 3 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index c14c1a3b..1ad768da 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -49,13 +49,13 @@ public View onCreateView(LayoutInflater inflater,
     // -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_demo_timing_1)
-    public void onRunOnceWithDelay() {
-        _log(String.format("C1 [%s] --- BTN click", _getCurrentTimestamp()));
+    public void Btn1_RunSingleTaskAfter2s() {
+        _log(String.format("B1 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        Observable.just(1).delay(1, TimeUnit.SECONDS).subscribe(new Observer<Integer>() {
+        Observable.just(1).delay(2, TimeUnit.SECONDS).subscribe(new Observer<Integer>() {
             @Override
             public void onCompleted() {
-                _log(String.format("C1 [%s] XX COMPLETE", _getCurrentTimestamp()));
+                _log(String.format("B1 [%s] XX COMPLETE", _getCurrentTimestamp()));
             }
 
             @Override
@@ -65,7 +65,29 @@ public void onError(Throwable e) {
 
             @Override
             public void onNext(Integer integer) {
-                _log(String.format("C1 [%s]     NEXT", _getCurrentTimestamp()));
+                _log(String.format("B1 [%s]     NEXT", _getCurrentTimestamp()));
+            }
+        });
+    }
+
+    @OnClick(R.id.btn_demo_timing_4)
+    public void Btn4_RunTask5Times_IntervalOf3s() {
+        _log(String.format("C2 [%s] --- BTN click", _getCurrentTimestamp()));
+
+        Observable.interval(3, TimeUnit.SECONDS).take(5).subscribe(new Observer<Long>() {
+            @Override
+            public void onCompleted() {
+                _log(String.format("C2 [%s] XX COMPLETE", _getCurrentTimestamp()));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+            }
+
+            @Override
+            public void onNext(Long number) {
+                _log(String.format("C2 [%s]     NEXT", _getCurrentTimestamp()));
             }
         });
     }
diff --git a/app/src/main/res/layout/fragment_demo_timing.xml b/app/src/main/res/layout/fragment_demo_timing.xml
index 0a3399c9..ee3884c1 100644
--- a/app/src/main/res/layout/fragment_demo_timing.xml
+++ b/app/src/main/res/layout/fragment_demo_timing.xml
@@ -12,6 +12,23 @@
         android:layout_width="match_parent"
         >
 
+        <TableRow
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            >
+
+            <TextView
+                android:layout_height="wrap_content"
+                android:layout_width="match_parent"
+                android:gravity="left"
+                android:layout_weight="1"
+                android:layout_span="2"
+                android:padding="@dimen/text_micro"
+                android:text="@string/msg_demo_timing"
+
+                />
+        </TableRow>
+
         <TableRow
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
@@ -22,15 +39,15 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="C1: run once after a delay"
+                android:text="BTN 1"
                 />
 
             <Button
-                android:id="@+id/btn_demo_timing_3"
+                android:id="@+id/btn_demo_timing_2"
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="C3: run at intervals (start with delay)"
+                android:text="BTN 2"
                 />
         </TableRow>
 
@@ -40,11 +57,11 @@
             >
 
             <Button
-                android:id="@+id/btn_demo_timing_2"
+                android:id="@+id/btn_demo_timing_3"
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="C2: run 5 times at specific intervals"
+                android:text="BTN 3"
                 />
 
             <Button
@@ -52,7 +69,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="C4: intervals (but start immediately)"
+                android:text="BTN 4"
                 />
         </TableRow>
     </TableLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 123ff9c9..0acf412c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -27,5 +27,5 @@
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>
-    <string name="msg_demo_timing">Demo of how you can use timing/interval/delay and play with the timings of when your events are emitted</string>
+    <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (starts with delay of 1s)\nBTN 3: run task every 1s (start immediately)\nBTN 4: run task 5 times every 3s (then complete)</string>
 </resources>

From 55f76175a04c5e115cd959a48855c26fd3d2ce6a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 15:44:11 -0700
Subject: [PATCH 065/260] feat: add button 2 non-stop interval

---
 .../android/rxjava/TimingDemoFragment.java    | 44 ++++++++++++++++---
 app/src/main/res/values/strings.xml           |  2 +-
 2 files changed, 39 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index 1ad768da..3a988023 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -18,6 +18,7 @@
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
 import rx.Observer;
+import rx.Subscription;
 import timber.log.Timber;
 
 import static android.os.Looper.getMainLooper;
@@ -31,6 +32,9 @@ public class TimingDemoFragment
     private LogAdapter _adapter;
     private List<String> _logs;
 
+    private Subscription _subscription1 = null;
+    private Subscription _subscription2 = null;
+
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
@@ -50,12 +54,12 @@ public View onCreateView(LayoutInflater inflater,
 
     @OnClick(R.id.btn_demo_timing_1)
     public void Btn1_RunSingleTaskAfter2s() {
-        _log(String.format("B1 [%s] --- BTN click", _getCurrentTimestamp()));
+        _log(String.format("A1 [%s] --- BTN click", _getCurrentTimestamp()));
 
         Observable.just(1).delay(2, TimeUnit.SECONDS).subscribe(new Observer<Integer>() {
             @Override
             public void onCompleted() {
-                _log(String.format("B1 [%s] XX COMPLETE", _getCurrentTimestamp()));
+                _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
             }
 
             @Override
@@ -65,19 +69,47 @@ public void onError(Throwable e) {
 
             @Override
             public void onNext(Integer integer) {
-                _log(String.format("B1 [%s]     NEXT", _getCurrentTimestamp()));
+                _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
+            }
+        });
+    }
+
+    @OnClick(R.id.btn_demo_timing_2)
+    public void Btn2_RunTask_IntervalOf1s() {
+        if (_subscription1 != null && !_subscription1.isUnsubscribed()) {
+            _subscription1.unsubscribe();
+            _log(String.format("B2 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
+            return;
+        }
+
+        _log(String.format("B2 [%s] --- BTN click", _getCurrentTimestamp()));
+
+        _subscription1 = Observable.interval(1, TimeUnit.SECONDS).subscribe(new Observer<Long>() {
+            @Override
+            public void onCompleted() {
+                _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+            }
+
+            @Override
+            public void onNext(Long number) {
+                _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
             }
         });
     }
 
     @OnClick(R.id.btn_demo_timing_4)
     public void Btn4_RunTask5Times_IntervalOf3s() {
-        _log(String.format("C2 [%s] --- BTN click", _getCurrentTimestamp()));
+        _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));
 
         Observable.interval(3, TimeUnit.SECONDS).take(5).subscribe(new Observer<Long>() {
             @Override
             public void onCompleted() {
-                _log(String.format("C2 [%s] XX COMPLETE", _getCurrentTimestamp()));
+                _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
             }
 
             @Override
@@ -87,7 +119,7 @@ public void onError(Throwable e) {
 
             @Override
             public void onNext(Long number) {
-                _log(String.format("C2 [%s]     NEXT", _getCurrentTimestamp()));
+                _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
             }
         });
     }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 0acf412c..5c561602 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -27,5 +27,5 @@
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>
-    <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (starts with delay of 1s)\nBTN 3: run task every 1s (start immediately)\nBTN 4: run task 5 times every 3s (then complete)</string>
+    <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete)</string>
 </resources>

From e1e6773beedc110469ed8937c6dfa92360a8c02e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 15:49:30 -0700
Subject: [PATCH 066/260] refactor: use timer for 1 time task with delay as
 more idiomatic

---
 .../android/rxjava/TimingDemoFragment.java    | 102 +++++++++---------
 1 file changed, 54 insertions(+), 48 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index 3a988023..9d97894d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -56,22 +56,24 @@ public View onCreateView(LayoutInflater inflater,
     public void Btn1_RunSingleTaskAfter2s() {
         _log(String.format("A1 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        Observable.just(1).delay(2, TimeUnit.SECONDS).subscribe(new Observer<Integer>() {
-            @Override
-            public void onCompleted() {
-                _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "something went wrong in TimingDemoFragment example");
-            }
-
-            @Override
-            public void onNext(Integer integer) {
-                _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
-            }
-        });
+        Observable.timer(2, TimeUnit.SECONDS)//
+              //.just(1).delay(2, TimeUnit.SECONDS)//
+              .subscribe(new Observer<Long>() {
+                  @Override
+                  public void onCompleted() {
+                      _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "something went wrong in TimingDemoFragment example");
+                  }
+
+                  @Override
+                  public void onNext(Long number) {
+                      _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
+                  }
+              });
     }
 
     @OnClick(R.id.btn_demo_timing_2)
@@ -84,44 +86,48 @@ public void Btn2_RunTask_IntervalOf1s() {
 
         _log(String.format("B2 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        _subscription1 = Observable.interval(1, TimeUnit.SECONDS).subscribe(new Observer<Long>() {
-            @Override
-            public void onCompleted() {
-                _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "something went wrong in TimingDemoFragment example");
-            }
-
-            @Override
-            public void onNext(Long number) {
-                _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
-            }
-        });
+        _subscription1 = Observable//
+              .interval(1, TimeUnit.SECONDS)//
+              .subscribe(new Observer<Long>() {
+                  @Override
+                  public void onCompleted() {
+                      _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "something went wrong in TimingDemoFragment example");
+                  }
+
+                  @Override
+                  public void onNext(Long number) {
+                      _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
+                  }
+              });
     }
 
     @OnClick(R.id.btn_demo_timing_4)
     public void Btn4_RunTask5Times_IntervalOf3s() {
         _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        Observable.interval(3, TimeUnit.SECONDS).take(5).subscribe(new Observer<Long>() {
-            @Override
-            public void onCompleted() {
-                _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "something went wrong in TimingDemoFragment example");
-            }
-
-            @Override
-            public void onNext(Long number) {
-                _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
-            }
-        });
+        Observable//
+              .interval(3, TimeUnit.SECONDS).take(5)//
+              .subscribe(new Observer<Long>() {
+                  @Override
+                  public void onCompleted() {
+                      _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "something went wrong in TimingDemoFragment example");
+                  }
+
+                  @Override
+                  public void onNext(Long number) {
+                      _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
+                  }
+              });
     }
 
     // -----------------------------------------------------------------------------------

From 4feeb5fe06ba52c42fe9533357948e83d1b21b06 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 15:51:44 -0700
Subject: [PATCH 067/260] feat: add button 3 example where you start
 immediately and then go on with intervals

---
 .../android/rxjava/TimingDemoFragment.java    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index 9d97894d..facc3c16 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -106,6 +106,36 @@ public void onNext(Long number) {
               });
     }
 
+    @OnClick(R.id.btn_demo_timing_3)
+    public void Btn3_RunTask_IntervalOf1s_StartImmediately() {
+        if (_subscription2 != null && !_subscription2.isUnsubscribed()) {
+            _subscription2.unsubscribe();
+            _log(String.format("C3 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
+            return;
+        }
+
+        _log(String.format("C3 [%s] --- BTN click", _getCurrentTimestamp()));
+
+        _subscription2 = Observable//
+              .timer(0, 1, TimeUnit.SECONDS)//
+              .subscribe(new Observer<Long>() {
+                  @Override
+                  public void onCompleted() {
+                      _log(String.format("C3 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "something went wrong in TimingDemoFragment example");
+                  }
+
+                  @Override
+                  public void onNext(Long number) {
+                      _log(String.format("C3 [%s]     NEXT", _getCurrentTimestamp()));
+                  }
+              });
+    }
+
     @OnClick(R.id.btn_demo_timing_4)
     public void Btn4_RunTask5Times_IntervalOf3s() {
         _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));

From 5d3b5e66da3810734799d50b7b0148677dd8bea6 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 16:10:19 -0700
Subject: [PATCH 068/260] feat: update README with timing demos

---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index f7a66d04..3091a8bf 100644
--- a/README.md
+++ b/README.md
@@ -90,6 +90,16 @@ Using concat, you can retrieve information from an observable first (presumably
 
 For the purposes of illustration i use an in-memory `List` (not an actual disk cache), then shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
 
+### Simple Timing demos using timer/interval/delay
+
+This is a super simple and straightforward example which shows you how to use RxJava's `timer`, `interval` and `delay` operators to handle a bunch of cases where you want to run a task at specific intervals. Basically say NO to Android `TimerTask`s.
+
+Cases demonstrated here:
+
+1. run a single task after a delay of 2s, then complete
+2. run a task constantly every 1s (there's a delay of 1s before the first task fires off)
+3. run a task constantly every 1s (same as above but there's no delay before the first task fires off)
+4. run a task constantly every 3s, but after running it 5 times, terminate automatically
 
 ## Work in Progress:
 

From fa10cdadecbaba7b5a838bea1263caec9df3565b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 12 May 2015 16:27:37 -0700
Subject: [PATCH 069/260] fix: spaces from PR

---
 .../com/morihacky/android/rxjava/MainActivity.java  | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index f6e1ea5c..69e9c6a3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
-import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 import timber.log.Timber;
 
@@ -27,11 +26,11 @@ protected void onCreate(Bundle savedInstanceState) {
 
         Timber.plant(new Timber.DebugTree());
 
-	    if(savedInstanceState == null){
-    	  getSupportFragmentManager().beginTransaction()
-        	  .addToBackStack(this.toString())
-	          .replace(R.id.activity_main, new MainFragment(), this.toString())
-   	       .commit();
-		}
+        if (savedInstanceState == null) {
+            getSupportFragmentManager().beginTransaction()
+                  .addToBackStack(this.toString())
+                  .replace(R.id.activity_main, new MainFragment(), this.toString())
+                  .commit();
+        }
     }
 }
\ No newline at end of file

From 605e493a68630d98df00453049f8566bb121a21c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 15 May 2015 22:07:24 -0700
Subject: [PATCH 070/260] fix: search debounce - what was i thinking with the
 previous code?

---
 .../SubjectDebounceSearchEmitterFragment.java | 46 ++++++-------------
 1 file changed, 14 insertions(+), 32 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 6e147698..3364cfdb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -13,20 +13,18 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnTextChanged;
-import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
 import rx.Observer;
-import rx.Subscriber;
 import rx.Subscription;
-import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import rx.subjects.PublishSubject;
 import timber.log.Timber;
 
+import static rx.android.app.AppObservable.bindFragment;
+
 /**
  * The reason we use a Subject for tracking the search query is because it emits observables.
  * Because a Subject subscribes to an Observable, it will trigger that Observable to begin emitting items
@@ -53,13 +51,7 @@ public class SubjectDebounceSearchEmitterFragment
     private List<String> _logs;
 
     private Subscription _subscription;
-    private PublishSubject<Observable<String>> _searchTextEmitterSubject;
-
-    @OnTextChanged(R.id.input_txt_subject_debounce)
-    public void onTextEntered(CharSequence charsEntered) {
-        Timber.d("---------- text entered %s", charsEntered);
-        _searchTextEmitterSubject.onNext(_getASearchObservableFor(charsEntered.toString()));
-    }
+    private PublishSubject<String> _searchTextEmitterSubject;
 
     @Override
     public void onDestroy() {
@@ -84,13 +76,20 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         _setupLogger();
 
         _searchTextEmitterSubject = PublishSubject.create();
-        _subscription = AppObservable.bindFragment(SubjectDebounceSearchEmitterFragment.this,
-              Observable.switchOnNext(_searchTextEmitterSubject))
-              .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
+
+        _subscription = bindFragment(this,//
+              _searchTextEmitterSubject//
+                    .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())//
+                    .observeOn(AndroidSchedulers.mainThread()))//
               .subscribe(_getSearchObserver());
     }
 
+    @OnTextChanged(R.id.input_txt_subject_debounce)
+    public void onTextEntered(CharSequence charsEntered) {
+        Timber.d("---------- text entered %s", charsEntered);
+        _searchTextEmitterSubject.onNext(charsEntered.toString());
+    }
+
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
@@ -116,23 +115,6 @@ public void onNext(String searchText) {
         };
     }
 
-    /**
-     * @param searchText search text entered onTextChange
-     * @return a new observable which searches for text searchText, explicitly say you want subscription to be done on a a non-UI thread, otherwise it'll default to the main thread.
-     */
-    private Observable<String> _getASearchObservableFor(final String searchText) {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
-            @Override
-            public void call(Subscriber<? super String> subscriber) {
-
-                Timber.d("----------- inside the search observable");
-                subscriber.onNext(searchText);
-                // subscriber.onCompleted(); This seems to have no effect.
-            }
-        }).subscribeOn(Schedulers.io());
-    }
-
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 

From 9f4f222a62cec6f1465f12137e63ddcb74817974 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 2 Jun 2015 11:20:35 -0700
Subject: [PATCH 071/260] refactor: .create() -> .just() : create is an
 overkill

---
 ...ConcurrencyWithSchedulersDemoFragment.java | 23 +++++++------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 15f33371..290ea2d7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -14,15 +14,14 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import rx.Observable;
 import rx.Observer;
-import rx.Subscriber;
 import rx.Subscription;
 import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func1;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
@@ -72,23 +71,17 @@ public void startLongOperation() {
     }
 
     private Observable<Boolean> _getObservable() {
-        return Observable.create(new Observable.OnSubscribe<Boolean>() {
-
+        return Observable.just(true).map(new Func1<Boolean, Boolean>() {
             @Override
-            public void call(Subscriber<? super Boolean> observer) {
-
-                _log("Within Observable");
-
+            public Boolean call(Boolean aBoolean) {
                 _doSomeLongOperation_thatBlocksCurrentThread();
-                observer.onNext(true);
-                observer.onCompleted();
+                return aBoolean;
             }
         });
     }
 
     /**
-     * Observer that handles the result List<Integer> from Observable
-     * through the 3 important actions:
+     * Observer that handles the result through the 3 important actions:
      *
      * 1. onCompleted
      * 2. onError
@@ -106,13 +99,13 @@ public void onCompleted() {
             @Override
             public void onError(Throwable e) {
                 Timber.e(e, "Error in RxJava Demo concurrency");
-                _log(String.format("Boo Error %s", e.getMessage()));
+                _log(String.format("Boo! Error %s", e.getMessage()));
                 _progress.setVisibility(View.INVISIBLE);
             }
 
             @Override
-            public void onNext(Boolean aBoolean) {
-                _log(String.format("onNext with return value \"%b\"", aBoolean));
+            public void onNext(Boolean bool) {
+                _log(String.format("onNext with return value \"%b\"", bool));
             }
         };
     }

From ff1ac9ade582434219c77eab34736769f15e7fa7 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 2 Jun 2015 11:20:45 -0700
Subject: [PATCH 072/260] bef

---
 .../android/rxjava/ConcurrencyWithSchedulersDemoFragment.java    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 290ea2d7..dac9749d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -74,6 +74,7 @@ private Observable<Boolean> _getObservable() {
         return Observable.just(true).map(new Func1<Boolean, Boolean>() {
             @Override
             public Boolean call(Boolean aBoolean) {
+                _log("Within Observable");
                 _doSomeLongOperation_thatBlocksCurrentThread();
                 return aBoolean;
             }

From 43c0ac3bab83fc68bcc4dad66b3954a47de7e70f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 2 Jun 2015 13:43:48 -0700
Subject: [PATCH 073/260] feat: add sample showing AsyncTask Vs RxJava
 equivalent

---
 .../android/rxjava/MainFragment.java          |   1 +
 .../RetrofitAsyncTaskDeathFragment.java       | 150 ++++++++++++++++++
 .../android/rxjava/retrofit/GithubApi.java    |   9 ++
 .../fragment_retrofit_async_task_death.xml    |  50 ++++++
 4 files changed, 210 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
 create mode 100644 app/src/main/res/layout/fragment_retrofit_async_task_death.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 2ebf26ff..4848a2cd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -57,6 +57,7 @@ public void demoRetrofitCalls() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
               .addToBackStack(this.toString())
+              //.replace(R.id.activity_main, new RetrofitAsyncTaskDeathFragment(), this.toString())
               .replace(R.id.activity_main, new RetrofitFragment(), this.toString())
               .commit();
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
new file mode 100644
index 00000000..fee6e8c8
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
@@ -0,0 +1,150 @@
+package com.morihacky.android.rxjava;
+
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.Looper;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.EditText;
+import android.widget.ListView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.morihacky.android.rxjava.retrofit.User;
+import java.util.ArrayList;
+import retrofit.RequestInterceptor;
+import retrofit.RestAdapter;
+import rx.Observable;
+import rx.Observer;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func1;
+import rx.schedulers.Schedulers;
+import timber.log.Timber;
+
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static java.lang.String.format;
+
+public class RetrofitAsyncTaskDeathFragment
+      extends Fragment {
+
+    @InjectView(R.id.btn_demo_retrofit_async_death_username) EditText _username;
+    @InjectView(R.id.log_list) ListView _resultList;
+
+    private GithubApi _api;
+    private ArrayAdapter<String> _adapter;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        _api = _createGithubApi();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+
+        View layout = inflater.inflate(R.layout.fragment_retrofit_async_task_death,
+              container,
+              false);
+        ButterKnife.inject(this, layout);
+
+        _adapter = new ArrayAdapter<>(getActivity(),
+              R.layout.item_log,
+              R.id.item_log,
+              new ArrayList<String>());
+        //_adapter.setNotifyOnChange(true);
+        _resultList.setAdapter(_adapter);
+
+        return layout;
+    }
+
+    @OnClick(R.id.btn_demo_retrofit_async_death)
+    public void onGetGithubUserClicked() {
+        _adapter.clear();
+
+        /*new AsyncTask<String, Void, User>() {
+
+            @Override
+            protected User doInBackground(String... params) {
+                return _api.getUser(params[0]);
+            }
+
+            @Override
+            protected void onPostExecute(User user) {
+                _adapter.add(format("%s  = [%s: %s]", _username.getText(), user.name, user.email));
+            }
+        }.execute(_username.getText().toString());*/
+
+
+        Observable.just(_username.getText().toString())
+              .subscribeOn(Schedulers.io())
+              .observeOn(AndroidSchedulers.mainThread())
+              .flatMap(new Func1<String, Observable<User>>() {
+                  @Override
+                  public Observable<User> call(String username) {
+                      return _api.user(username);
+                  }
+              })
+              .subscribe(new Observer<User>() {
+                  @Override
+                  public void onCompleted() {
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                  }
+
+                  @Override
+                  public void onNext(User user) {
+                      _adapter.add(format("%s  = [%s: %s]",
+                            _username.getText(),
+                            user.name,
+                            user.email));
+                  }
+              });
+
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    private GithubApi _createGithubApi() {
+
+        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
+              "https://api.github.com/");
+        //.setLogLevel(RestAdapter.LogLevel.FULL);
+
+        final String githubToken = getResources().getString(R.string.github_oauth_token);
+        if (!isNullOrEmpty(githubToken)) {
+            builder.setRequestInterceptor(new RequestInterceptor() {
+                @Override
+                public void intercept(RequestFacade request) {
+                    request.addHeader("Authorization", format("token %s", githubToken));
+                }
+            });
+        }
+
+        return builder.build().create(GithubApi.class);
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    private class GetGithubUser
+          extends AsyncTask<String, Void, User> {
+
+        @Override
+        protected User doInBackground(String... params) {
+            return _api.getUser(params[0]);
+        }
+
+        @Override
+        protected void onPostExecute(User user) {
+            _adapter.add(format("%s  = [%s: %s]", _username.getText(), user.name, user.email));
+        }
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
index 9b606382..28ce3011 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -14,9 +14,18 @@ public interface GithubApi {
     Observable<List<Contributor>> contributors(@Path("owner") String owner,
                                                @Path("repo") String repo);
 
+    @GET("/repos/{owner}/{repo}/contributors")
+    List<Contributor> getContributors(@Path("owner") String owner, @Path("repo") String repo);
+
     /**
      * See https://developer.github.com/v3/users/
      */
     @GET("/users/{user}")
     Observable<User> user(@Path("user") String user);
+
+    /**
+     * See https://developer.github.com/v3/users/
+     */
+    @GET("/users/{user}")
+    User getUser(@Path("user") String user);
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_retrofit_async_task_death.xml b/app/src/main/res/layout/fragment_retrofit_async_task_death.xml
new file mode 100644
index 00000000..ad4d565b
--- /dev/null
+++ b/app/src/main/res/layout/fragment_retrofit_async_task_death.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_retrofit_async_task_death"
+        />
+
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        >
+
+        <Button
+            android:id="@+id/btn_demo_retrofit_async_death"
+            android:layout_weight="2"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="14sp"
+            android:text="Log User Info:"
+            />
+
+        <EditText
+            android:id="@+id/btn_demo_retrofit_async_death_username"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dip"
+            android:textSize="12sp"
+            android:text="kaushikgopal"
+            android:hint="owner"
+            />
+
+    </LinearLayout>
+
+    <ListView
+        android:id="@+id/log_list"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        />
+
+</LinearLayout>
\ No newline at end of file

From e0e48708214ea01dbd8a638fb30f1edd10caed74 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 3 Jun 2015 22:52:00 -0700
Subject: [PATCH 074/260] refactor: use Retrofit Observable return type
 directly

---
 .../rxjava/RetrofitAsyncTaskDeathFragment.java        | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
index fee6e8c8..acf01b95 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
@@ -69,7 +69,6 @@ public void onGetGithubUserClicked() {
         _adapter.clear();
 
         /*new AsyncTask<String, Void, User>() {
-
             @Override
             protected User doInBackground(String... params) {
                 return _api.getUser(params[0]);
@@ -81,16 +80,9 @@ protected void onPostExecute(User user) {
             }
         }.execute(_username.getText().toString());*/
 
-
-        Observable.just(_username.getText().toString())
+        _api.user(_username.getText().toString())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .flatMap(new Func1<String, Observable<User>>() {
-                  @Override
-                  public Observable<User> call(String username) {
-                      return _api.user(username);
-                  }
-              })
               .subscribe(new Observer<User>() {
                   @Override
                   public void onCompleted() {
@@ -108,7 +100,6 @@ public void onNext(User user) {
                             user.email));
                   }
               });
-
     }
 
     // -----------------------------------------------------------------------------------

From 5c3c31c7fa1dba597b5d22f5cb58e3d3c8b5ca8c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 3 Jun 2015 22:52:57 -0700
Subject: [PATCH 075/260] chore: add retrofit message

---
 app/src/main/res/values/strings.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 5c561602..c51e84cf 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -23,6 +23,7 @@
     <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
     <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
+    <string name="msg_demo_retrofit_async_task_death">This shows how you can replace an AsyncTask with RxJava. The interesting parts are in the code.</string>
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>

From 517101ac651f3db6302208bc37bd5a32f1103898 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 3 Jun 2015 23:35:52 -0700
Subject: [PATCH 076/260] refactor: replace Subject with WidgetObservable

---
 .../SubjectDebounceSearchEmitterFragment.java | 31 ++++++++-----------
 1 file changed, 13 insertions(+), 18 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 3364cfdb..7a9a3fc8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -9,20 +9,23 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
+import android.widget.EditText;
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import butterknife.OnTextChanged;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
+import rx.android.widget.OnTextChangeEvent;
+import rx.android.widget.WidgetObservable;
 import rx.schedulers.Schedulers;
-import rx.subjects.PublishSubject;
 import timber.log.Timber;
 
+import static java.lang.String.format;
 import static rx.android.app.AppObservable.bindFragment;
 
 /**
@@ -46,12 +49,12 @@ public class SubjectDebounceSearchEmitterFragment
       extends BaseFragment {
 
     @InjectView(R.id.list_threading_log) ListView _logsList;
+    @InjectView(R.id.input_txt_subject_debounce) EditText _inputSearchText;
 
     private LogAdapter _adapter;
     private List<String> _logs;
 
     private Subscription _subscription;
-    private PublishSubject<String> _searchTextEmitterSubject;
 
     @Override
     public void onDestroy() {
@@ -75,27 +78,20 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         _setupLogger();
 
-        _searchTextEmitterSubject = PublishSubject.create();
+        Observable<OnTextChangeEvent> textChangeObservable = WidgetObservable.text(_inputSearchText);
 
         _subscription = bindFragment(this,//
-              _searchTextEmitterSubject//
+              textChangeObservable//
                     .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())//
                     .observeOn(AndroidSchedulers.mainThread()))//
               .subscribe(_getSearchObserver());
     }
 
-    @OnTextChanged(R.id.input_txt_subject_debounce)
-    public void onTextEntered(CharSequence charsEntered) {
-        Timber.d("---------- text entered %s", charsEntered);
-        _searchTextEmitterSubject.onNext(charsEntered.toString());
-    }
-
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
-    private Observer<String> _getSearchObserver() {
-        return new Observer<String>() {
-
+    private Observer<OnTextChangeEvent> _getSearchObserver() {
+        return new Observer<OnTextChangeEvent>() {
             @Override
             public void onCompleted() {
                 Timber.d("--------- onComplete");
@@ -104,13 +100,12 @@ public void onCompleted() {
             @Override
             public void onError(Throwable e) {
                 Timber.e(e, "--------- Woops on error!");
-                _log(String.format("Dang error. check your logs"));
+                _log("Dang error. check your logs");
             }
 
             @Override
-            public void onNext(String searchText) {
-                _log(String.format("onNext You searched for %s", searchText));
-                onCompleted();
+            public void onNext(OnTextChangeEvent onTextChangeEvent) {
+                _log(format("onNext You searched for %s", onTextChangeEvent.text().toString()));
             }
         };
     }

From db1a1fe492845ff1c1473effaaf93434d7af1a00 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 4 Jun 2015 10:22:21 -0700
Subject: [PATCH 077/260] bef

---
 .../android/rxjava/RetrofitAsyncTaskDeathFragment.java          | 2 --
 1 file changed, 2 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
index acf01b95..a883cbe2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.AsyncTask;
 import android.os.Bundle;
-import android.os.Looper;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
@@ -24,7 +23,6 @@
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Func1;
 import rx.schedulers.Schedulers;
-import timber.log.Timber;
 
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.lang.String.format;

From 63ddd0e78a59a6081b6823773db9ffc8070fb541 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 4 Jun 2015 10:37:56 -0700
Subject: [PATCH 078/260] fix: clean up text for demo

---
 .../SubjectDebounceSearchEmitterFragment.java | 10 ++++++-
 .../res/layout/fragment_subject_debounce.xml  | 28 +++++++++++++++----
 app/src/main/res/values/strings.xml           |  4 +--
 3 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 7a9a3fc8..5d3df994 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -13,6 +13,7 @@
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
+import butterknife.OnClick;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
@@ -73,8 +74,15 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @OnClick(R.id.clr_subject_debounce)
+    public void onClearLog() {
+        _logs = new ArrayList<>();
+        _adapter.clear();
+    }
+
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+
         super.onActivityCreated(savedInstanceState);
         _setupLogger();
 
@@ -105,7 +113,7 @@ public void onError(Throwable e) {
 
             @Override
             public void onNext(OnTextChangeEvent onTextChangeEvent) {
-                _log(format("onNext You searched for %s", onTextChangeEvent.text().toString()));
+                _log(format("Searching for %s", onTextChangeEvent.text().toString()));
             }
         };
     }
diff --git a/app/src/main/res/layout/fragment_subject_debounce.xml b/app/src/main/res/layout/fragment_subject_debounce.xml
index 18ef8179..85a6f8c1 100644
--- a/app/src/main/res/layout/fragment_subject_debounce.xml
+++ b/app/src/main/res/layout/fragment_subject_debounce.xml
@@ -15,13 +15,31 @@
         android:text="@string/msg_demo_subject"
         />
 
-    <EditText
-        android:id="@+id/input_txt_subject_debounce"
+    <LinearLayout
+        android:orientation="horizontal"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        android:textSize="16sp"
-        android:hint="Enter some search text"
-        />
+        >
+
+        <EditText
+            android:id="@+id/input_txt_subject_debounce"
+            android:layout_weight="7"
+            android:layout_height="match_parent"
+            android:layout_width="0dp"
+            android:inputType="textNoSuggestions"
+            android:textSize="16sp"
+            android:hint="Enter some search text"
+            />
+
+        <ImageButton
+            android:id="@+id/clr_subject_debounce"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="0dp"
+            android:src="@android:drawable/ic_menu_close_clear_cancel"
+            />
+
+    </LinearLayout>
 
     <ListView
         android:id="@+id/list_threading_log"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index c51e84cf..474ba1c7 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -20,11 +20,11 @@
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
-    <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that. \n\nThis is the debounce/throttleWithTimeout method in RxJava.</string>
+    <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the last one.</string>
     <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
     <string name="msg_demo_retrofit_async_task_death">This shows how you can replace an AsyncTask with RxJava. The interesting parts are in the code.</string>
-    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates based on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
+    <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates <ba></ba>sed on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>

From e1d5dbb785ec9bb67fb4caa3392ba18514e8209e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 4 Jun 2015 10:46:37 -0700
Subject: [PATCH 079/260] fix: add clear button to timing demo

---
 .../android/rxjava/TimingDemoFragment.java    |  6 ++++
 .../main/res/layout/fragment_demo_timing.xml  | 28 +++++++++++++++----
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
index facc3c16..791684b0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
@@ -163,6 +163,12 @@ public void onNext(Long number) {
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 
+    @OnClick(R.id.btn_clr)
+    public void OnClearLog() {
+        _logs = new ArrayList<>();
+        _adapter.clear();
+    }
+
     private void _setupLogger() {
         _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
diff --git a/app/src/main/res/layout/fragment_demo_timing.xml b/app/src/main/res/layout/fragment_demo_timing.xml
index ee3884c1..4129d5a7 100644
--- a/app/src/main/res/layout/fragment_demo_timing.xml
+++ b/app/src/main/res/layout/fragment_demo_timing.xml
@@ -18,13 +18,13 @@
             >
 
             <TextView
+                android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="match_parent"
-                android:gravity="left"
-                android:layout_weight="1"
-                android:layout_span="2"
                 android:padding="@dimen/text_micro"
+                android:gravity="left"
                 android:text="@string/msg_demo_timing"
+                android:layout_span="2"
 
                 />
         </TableRow>
@@ -75,10 +75,26 @@
     </TableLayout>
 
 
-    <ListView
-        android:id="@+id/list_threading_log"
+    <LinearLayout
+        android:orientation="horizontal"
         android:layout_height="match_parent"
         android:layout_width="match_parent"
-        />
+        >
+
+        <ListView
+            android:id="@+id/list_threading_log"
+            android:layout_weight="1"
+            android:layout_height="match_parent"
+            android:layout_width="0dp"
+            />
+
+        <ImageButton
+            android:id="@+id/btn_clr"
+            android:src="@android:drawable/ic_menu_close_clear_cancel"
+            android:layout_height="wrap_content"
+            android:layout_width="wrap_content"
+            />
+    </LinearLayout>
+
 
 </LinearLayout>
\ No newline at end of file

From 0707451adde4071d85a936be5fe368200c39a02b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 4 Jun 2015 11:04:56 -0700
Subject: [PATCH 080/260] fix: clean text on combinelatest demo

---
 app/src/main/res/values/strings.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 474ba1c7..0dd20ec6 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -27,6 +27,6 @@
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates <ba></ba>sed on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
-    <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. The submit button uses combineLatest to monitor validity of each of the 3 inputs. Only after the 3 inputs contain valid inputs will the submit button be enabled</string>
+    <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete)</string>
 </resources>

From 5ad3a19486c2d5cb99f7ad197e03e6f17a90db76 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 4 Jun 2015 11:05:38 -0700
Subject: [PATCH 081/260] wip: polling demo requires more cleanup - also i
 think the timing demo is a better example

---
 .../main/java/com/morihacky/android/rxjava/MainFragment.java  | 4 ++--
 app/src/main/res/layout/fragment_main.xml                     | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 4848a2cd..e5d40374 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -71,14 +71,14 @@ public void demoDoubleBindingWithPublishSubject() {
               .commit();
     }
 
-    @OnClick(R.id.btn_demo_polling)
+    /*@OnClick(R.id.btn_demo_polling)
     public void demoPolling() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
               .addToBackStack(this.toString())
               .replace(R.id.activity_main, new PollingFragment(), this.toString())
               .commit();
-    }
+    }*/
 
     @OnClick(R.id.btn_demo_rxbus)
     public void demoRxBus() {
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 8c2b918b..2e2537c8 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -52,12 +52,12 @@
             android:text="@string/btn_demo_double_binding_textview"
             />
 
-        <Button
+        <!--<Button
             android:id="@+id/btn_demo_polling"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_polling"
-            />
+            />-->
 
         <Button
             android:id="@+id/btn_demo_rxbus"

From 96ef2635585c4a893e0a88c3b69b0371e3164e64 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 4 Jun 2015 14:29:25 -0700
Subject: [PATCH 082/260] fix: don't need to explicitly point to a Scheduler.
 debounce default = computation

---
 .../android/rxjava/SubjectDebounceSearchEmitterFragment.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index 5d3df994..eef363de 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -90,7 +90,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 
         _subscription = bindFragment(this,//
               textChangeObservable//
-                    .debounce(400, TimeUnit.MILLISECONDS, Schedulers.io())//
+                    .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
                     .observeOn(AndroidSchedulers.mainThread()))//
               .subscribe(_getSearchObserver());
     }

From b99b513e1368a87fac8c287da7076cedad24f04e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 5 Jun 2015 11:21:16 -0700
Subject: [PATCH 083/260] 1. use ViewObservable for the clicks vs attaching a
 listener on the button 2. remove _tapCount as it's unnecessary since buffer
 does the accumulation for us already 3. add comment to indicate there's a
 much better way to do this as demonstrated in Event Bus 3 demo.

Thanks to @vanniktech for kickstarting these changes
https://github.com/kaushikgopal/Android-RxJava/pull/14/files
---
 .../android/rxjava/BufferDemoFragment.java    | 128 ++++++++----------
 1 file changed, 54 insertions(+), 74 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index 16b177e7..e0ee6152 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -1,6 +1,5 @@
 package com.morihacky.android.rxjava;
 
-import android.content.Context;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -8,29 +7,35 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
 import rx.Observer;
-import rx.Subscriber;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+import rx.android.view.OnClickEvent;
+import rx.android.view.ViewObservable;
+import rx.functions.Func1;
 import timber.log.Timber;
 
 /**
- * credit to @tomrozb for this implementation:
- * http://stackoverflow.com/questions/24922610/incorrect-understanding-of-buffer-in-rxjava
+ * This is a demonstration of the `buffer` Observable.
  *
- * An alternate mechanism of achieving the same result would be to use a {@link rx.subjects.PublishSubject}
- * as demonstrated in the case of {@link com.morihacky.android.rxjava.SubjectDebounceSearchEmitterFragment}
+ * The buffer observable allows taps to be collected only within a time span. So taps outside the
+ * 2s limit imposed by buffer will get accumulated in the next log statement.
+ *
+ * If you're looking for a more foolproof solution that accumulates "continuous" taps vs
+ * a more dumb solution as show below (i.e. number of taps within a timespan)
+ * look at {@link com.morihacky.android.rxjava.rxbus.RxBusDemo_Bottom3Fragment} where a combo
+ * of `publish` and `buffer` is used.
+ *
+ * Also http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/
+ * if you're looking for words instead of code
  */
 public class BufferDemoFragment
       extends BaseFragment {
@@ -40,14 +45,13 @@ public class BufferDemoFragment
 
     private LogAdapter _adapter;
     private List<String> _logs;
-    private int _tapCount = 0;
 
     private Subscription _subscription;
 
     @Override
-    public void onResume() {
-        super.onResume();
-        _subscription = _getBufferedObservable().subscribe(_getObserver());
+    public void onStart() {
+        super.onStart();
+        _subscription = _getBufferedSubscription();
     }
 
     @Override
@@ -74,65 +78,49 @@ public View onCreateView(LayoutInflater inflater,
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
-    private Observable<List<Integer>> _getBufferedObservable() {
-
-        return Observable.create(new Observable.OnSubscribe<Integer>() {
-
-            @Override
-            public void call(Subscriber<? super Integer> subscriber) {
-                _tapBtn.setOnClickListener(new View.OnClickListener() {
-
-                    @Override
-                    public void onClick(View v) {
-                        Timber.d("--------- GOT A TAP");
-                        _tapCount += 1;
-                        _log("GOT A TAP");
-                    }
-                });
-            }
-        })
+    private Subscription _getBufferedSubscription() {
+        return ViewObservable.clicks(_tapBtn)
+              .map(new Func1<OnClickEvent, Integer>() {
+                  @Override
+                  public Integer call(OnClickEvent onClickEvent) {
+                      Timber.d("--------- GOT A TAP");
+                      _log("GOT A TAP");
+                      return 1;
+                  }
+              })
               .buffer(2, TimeUnit.SECONDS)
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread());
-    }
-
-    private Observer<List<Integer>> _getObserver() {
-        return new Observer<List<Integer>>() {
-
-            @Override
-            public void onCompleted() {
-                if (_tapCount > 0) {
-                    _log(String.format("%d taps", _tapCount));
-                    _tapCount = 0;
-                }
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "--------- Woops on error!");
-                _log(String.format("Dang error. check your logs"));
-            }
-
-            @Override
-            public void onNext(List<Integer> integers) {
-                Timber.d("--------- onNext");
-                if (integers.size() > 0) {
-                    for (int i : integers) {
-                        _tapCount += i;
-                    }
-                } else {
-                    Timber.d("--------- No taps received ");
-                }
-                onCompleted();
-            }
-        };
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Observer<List<Integer>>() {
+
+                  @Override
+                  public void onCompleted() {
+                      // fyi: you'll never reach here
+                      Timber.d("----- onCompleted");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "--------- Woops on error!");
+                      _log("Dang error! check your logs");
+                  }
+
+                  @Override
+                  public void onNext(List<Integer> integers) {
+                      Timber.d("--------- onNext");
+                      if (integers.size() > 0) {
+                          _log(String.format("%d taps", integers.size()));
+                      } else {
+                          Timber.d("--------- No taps received ");
+                      }
+                  }
+              });
     }
 
     // -----------------------------------------------------------------------------------
     // Methods that help wiring up the example (irrelevant to RxJava)
 
     private void _setupLogger() {
-        _logs = new ArrayList<String>();
+        _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
         _logsList.setAdapter(_adapter);
     }
@@ -161,12 +149,4 @@ public void run() {
     private boolean _isCurrentlyOnMainThread() {
         return Looper.myLooper() == Looper.getMainLooper();
     }
-
-    private class LogAdapter
-          extends ArrayAdapter<String> {
-
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
-    }
 }

From e80566706ef373ee997a50c4e67beaa93930c93a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 5 Jun 2015 11:29:14 -0700
Subject: [PATCH 084/260] fix: correct readme doc for buffered demo

---
 README.md | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 3091a8bf..d403de60 100644
--- a/README.md
+++ b/README.md
@@ -21,10 +21,9 @@ A button is provided and we accumulate the number of clicks on that button, over
 
 If you hit the button once. you'll get message saying the button was hit once. If you hit it 5 times continuosly within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying "Button hit once").
 
-Two possible implementations:
+Note:
 
-2a. Using a traditional observable - but encompassing the OnClick within the observable (as demoed here)
-2b. Using PublishSubject and sending single clicks to the Observable, which in-turn then sends it to the Observer
+If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation you can also have a look at this [blog post](http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/).
 
 ### Instant/Auto searching (subject + debounce)
 

From eb1274843453a6c7b037fd1f562883a1f30bad6a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 7 Jun 2015 12:24:03 -0700
Subject: [PATCH 085/260] fix: comment no longer holds

---
 .../SubjectDebounceSearchEmitterFragment.java   | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
index eef363de..2dab00a8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
@@ -29,23 +29,6 @@
 import static java.lang.String.format;
 import static rx.android.app.AppObservable.bindFragment;
 
-/**
- * The reason we use a Subject for tracking the search query is because it emits observables.
- * Because a Subject subscribes to an Observable, it will trigger that Observable to begin emitting items
- * (if that Observable is "cold" — that is, if it waits for a subscription before it begins to emit items).
- * This can have the effect of making the resulting Subject a "hot" Observable variant of the original "cold" Observable.
- *
- * This allows us to create the subject and subscription one time onActivity creation
- * Subsequently we send in Observables to the Subject's subscriber onTextChanged
- *
- * (unlike the way it's done in {@link com.morihacky.android.rxjava.ConcurrencyWithSchedulersDemoFragment#startLongOperation()})
- * where we create the subscription on every single event change (OnClick or OnTextchanged) which is
- *
- * wasteful!                : not really since we anyway unsubscribe in OnDestroyView
- * less-elegant             : as a concept for sure
- * simpler actually         : adds one more step in the 3 step subscription process, where we create emitter, and then send observables to that emitter)
- * incapable of debounce    : this is the primary reason, since creating new observable everytime in subscription disregards debounce on subsequent calls
- */
 public class SubjectDebounceSearchEmitterFragment
       extends BaseFragment {
 

From d6566c969d864950d6c1b86879c321abccf54604 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 7 Jun 2015 12:25:35 -0700
Subject: [PATCH 086/260] refactor: rename SubjectDebounceSearchEmitter to just
 DebounceEmitter cause we're no longer using a Subject

---
 ...hEmitterFragment.java => DebounceSearchEmitterFragment.java} | 2 +-
 .../main/java/com/morihacky/android/rxjava/MainFragment.java    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
 rename app/src/main/java/com/morihacky/android/rxjava/{SubjectDebounceSearchEmitterFragment.java => DebounceSearchEmitterFragment.java} (98%)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
index 2dab00a8..3db01712 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/SubjectDebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
@@ -29,7 +29,7 @@
 import static java.lang.String.format;
 import static rx.android.app.AppObservable.bindFragment;
 
-public class SubjectDebounceSearchEmitterFragment
+public class DebounceSearchEmitterFragment
       extends BaseFragment {
 
     @InjectView(R.id.list_threading_log) ListView _logsList;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index e5d40374..b8a37ac2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -47,7 +47,7 @@ public void demoThrottling() {
               .beginTransaction()
               .addToBackStack(this.toString())
               .replace(R.id.activity_main,
-                    new SubjectDebounceSearchEmitterFragment(),
+                    new DebounceSearchEmitterFragment(),
                     this.toString())
               .commit();
     }

From befeb858506e3448567ad3040bfacb2cddde0a3f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 7 Jun 2015 12:28:20 -0700
Subject: [PATCH 087/260] bef

---
 .../android/rxjava/DebounceSearchEmitterFragment.java      | 7 +++----
 .../java/com/morihacky/android/rxjava/MainFragment.java    | 2 +-
 ...fragment_subject_debounce.xml => fragment_debounce.xml} | 6 +++---
 app/src/main/res/layout/fragment_main.xml                  | 4 ++--
 app/src/main/res/values/strings.xml                        | 4 ++--
 5 files changed, 11 insertions(+), 12 deletions(-)
 rename app/src/main/res/layout/{fragment_subject_debounce.xml => fragment_debounce.xml} (89%)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
index 3db01712..6a71d07c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
@@ -23,7 +23,6 @@
 import rx.android.schedulers.AndroidSchedulers;
 import rx.android.widget.OnTextChangeEvent;
 import rx.android.widget.WidgetObservable;
-import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
 import static java.lang.String.format;
@@ -33,7 +32,7 @@ public class DebounceSearchEmitterFragment
       extends BaseFragment {
 
     @InjectView(R.id.list_threading_log) ListView _logsList;
-    @InjectView(R.id.input_txt_subject_debounce) EditText _inputSearchText;
+    @InjectView(R.id.input_txt_debounce) EditText _inputSearchText;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -52,12 +51,12 @@ public void onDestroy() {
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_subject_debounce, container, false);
+        View layout = inflater.inflate(R.layout.fragment_debounce, container, false);
         ButterKnife.inject(this, layout);
         return layout;
     }
 
-    @OnClick(R.id.clr_subject_debounce)
+    @OnClick(R.id.clr_debounce)
     public void onClearLog() {
         _logs = new ArrayList<>();
         _adapter.clear();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index b8a37ac2..ce9b926f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -41,7 +41,7 @@ public void demoBuffer() {
               .commit();
     }
 
-    @OnClick(R.id.btn_demo_subject_debounce)
+    @OnClick(R.id.btn_demo_debounce)
     public void demoThrottling() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
diff --git a/app/src/main/res/layout/fragment_subject_debounce.xml b/app/src/main/res/layout/fragment_debounce.xml
similarity index 89%
rename from app/src/main/res/layout/fragment_subject_debounce.xml
rename to app/src/main/res/layout/fragment_debounce.xml
index 85a6f8c1..2dc599c6 100644
--- a/app/src/main/res/layout/fragment_subject_debounce.xml
+++ b/app/src/main/res/layout/fragment_debounce.xml
@@ -12,7 +12,7 @@
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
-        android:text="@string/msg_demo_subject"
+        android:text="@string/msg_demo_debounce"
         />
 
     <LinearLayout
@@ -22,7 +22,7 @@
         >
 
         <EditText
-            android:id="@+id/input_txt_subject_debounce"
+            android:id="@+id/input_txt_debounce"
             android:layout_weight="7"
             android:layout_height="match_parent"
             android:layout_width="0dp"
@@ -32,7 +32,7 @@
             />
 
         <ImageButton
-            android:id="@+id/clr_subject_debounce"
+            android:id="@+id/clr_debounce"
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="0dp"
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 2e2537c8..0f2bb363 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -32,10 +32,10 @@
             />
 
         <Button
-            android:id="@+id/btn_demo_subject_debounce"
+            android:id="@+id/btn_demo_debounce"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_subject_debounce"
+            android:text="@string/btn_demo_debounce"
             />
 
         <Button
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 0dd20ec6..d7323172 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -8,7 +8,7 @@
 
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
-    <string name="btn_demo_subject_debounce">search text listener(subject debouncing)</string>
+    <string name="btn_demo_debounce">search text listener(debounce)</string>
     <string name="btn_demo_timeout">delayed jobs (timeout)</string>
     <string name="btn_demo_retrofit">Retrofit + RxJava</string>
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
@@ -20,7 +20,7 @@
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
-    <string name="msg_demo_subject">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the last one.</string>
+    <string name="msg_demo_debounce">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the last one.</string>
     <string name="msg_demo_timeout">This is a demo of terminating events, that take too long to process. Events in this demo should timeout in 3 seconds. Button 1 is an event that takes 2s to process, and Button 2 is a n event that takes 5s to process. Hit Button 2, and see in the logs that it\'s been cancelled, while this is not the case for Button 1.</string>
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
     <string name="msg_demo_retrofit_async_task_death">This shows how you can replace an AsyncTask with RxJava. The interesting parts are in the code.</string>

From 89af9779c0c02811bf9a67c0681629257a37bc0c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 30 Jun 2015 15:14:58 -0700
Subject: [PATCH 088/260] feat: add my RxUtils class with CompositeSubscription
 helpers

---
 .../com/morihacky/android/rxjava/RxUtils.java | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/RxUtils.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java b/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
new file mode 100644
index 00000000..100b9aa0
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
@@ -0,0 +1,21 @@
+package com.morihacky.android.rxjava;
+
+import rx.Subscription;
+import rx.subscriptions.CompositeSubscription;
+
+public class RxUtils {
+
+    public static void unsubscribeIfNotNull(Subscription subscription) {
+        if (subscription != null) {
+            subscription.unsubscribe();
+        }
+    }
+
+    public static CompositeSubscription getNewCompositeSubIfUnsubscribed(CompositeSubscription subscription) {
+        if (subscription == null || subscription.isUnsubscribed()) {
+            return new CompositeSubscription();
+        }
+
+        return subscription;
+    }
+}

From 481e17519d808b2ac5a6c0e459881c7117572024 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 30 Jun 2015 15:15:51 -0700
Subject: [PATCH 089/260] fix: @mattlogan called me out for being lazy and not
 doing the right thing. unsubscribe responsibly so no mem leaking

---
 .../android/rxjava/RetrofitFragment.java      | 81 +++++++++++--------
 1 file changed, 49 insertions(+), 32 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 04195e3b..10bc0e05 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -13,7 +13,6 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
@@ -27,6 +26,7 @@
 import rx.functions.Func1;
 import rx.functions.Func2;
 import rx.schedulers.Schedulers;
+import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
 import static com.google.common.base.Strings.isNullOrEmpty;
@@ -41,6 +41,7 @@ public class RetrofitFragment
 
     private GithubApi _api;
     private ArrayAdapter<String> _adapter;
+    private CompositeSubscription _subscriptions = new CompositeSubscription();
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -48,6 +49,19 @@ public void onCreate(Bundle savedInstanceState) {
         _api = _createGithubApi();
     }
 
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
@@ -70,42 +84,45 @@ public View onCreateView(LayoutInflater inflater,
     public void onListContributorsClicked() {
         _adapter.clear();
 
-        _api.contributors(_username.getText().toString(), _repo.getText().toString())
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<List<Contributor>>() {
-                  @Override
-                  public void onCompleted() {
-                      Timber.d("Retrofit call 1 completed");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "woops we got an error while getting the list of contributors");
-                  }
-
-                  @Override
-                  public void onNext(List<Contributor> contributors) {
-                      for (Contributor c : contributors) {
-                          _adapter.add(format("%s has made %d contributions to %s",
-                                c.login,
-                                c.contributions,
-                                _repo.getText().toString()));
-
-                          Timber.d("%s has made %d contributions to %s",
-                                c.login,
-                                c.contributions,
-                                _repo.getText().toString());
-                      }
-                  }
-              });
+        _subscriptions.add(//
+              _api.contributors(_username.getText().toString(), _repo.getText().toString())
+                    .subscribeOn(Schedulers.io())
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .subscribe(new Observer<List<Contributor>>() {
+                        @Override
+                        public void onCompleted() {
+                            Timber.d("Retrofit call 1 completed");
+                        }
+
+                        @Override
+                        public void onError(Throwable e) {
+                            Timber.e(e,
+                                  "woops we got an error while getting the list of contributors");
+                        }
+
+                        @Override
+                        public void onNext(List<Contributor> contributors) {
+                            for (Contributor c : contributors) {
+                                _adapter.add(format("%s has made %d contributions to %s",
+                                      c.login,
+                                      c.contributions,
+                                      _repo.getText().toString()));
+
+                                Timber.d("%s has made %d contributions to %s",
+                                      c.login,
+                                      c.contributions,
+                                      _repo.getText().toString());
+                            }
+                        }
+                    }));
     }
 
     @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
     public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
-        _api.contributors(_username.getText().toString(), _repo.getText().toString())
+        _subscriptions.add(_api.contributors(_username.getText().toString(),
+              _repo.getText().toString())
               .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
                   @Override
                   public Observable<Contributor> call(List<Contributor> contributors) {
@@ -167,7 +184,7 @@ public void onNext(Pair<User, Contributor> pair) {
                             contributor.contributions,
                             _repo.getText().toString());
                   }
-              });
+              }));
     }
 
     // -----------------------------------------------------------------------------------

From 4b2180fe098cc477b701c5fdbf6eedfac8cef947 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 2 Jul 2015 22:17:01 -0700
Subject: [PATCH 090/260] feat: add explanation for exponential backoff
 strategy with intended examples

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index d403de60..f7cc9d49 100644
--- a/README.md
+++ b/README.md
@@ -100,11 +100,30 @@ Cases demonstrated here:
 3. run a task constantly every 1s (same as above but there's no delay before the first task fires off)
 4. run a task constantly every 3s, but after running it 5 times, terminate automatically
 
+### Exponential backoff
+
+[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output we alter the rate of a process (usually reduce the number of retries or increase the wait time before retrying or re-executing a cetain process).
+
+It makes far more sense with examples, and RxJava makes it (relatively) simple to achieve such a strategy.
+
+#### retry (if error) with exponential backoff
+
+Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+
+We simulate this behaviour using RxJava with the `retryWhen`
+
+#### "repeat" with exponential backoff
+
+Another variant of the exponential backoff strategy is to execute an operation repeatedly for a given number of times, but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
+
+Simulating this behavior is actually way more simpler than the retry mechanism. You can use a variant of the `delay` operator to achieve this.
+
 ## Work in Progress:
 
 Examples that I would like to have here, but haven't found the time yet to flush out.
 
 
+
 ### Pagination
 
 a. Simple pagination

From d610fe782628904f7570b6884789831a9b86b767 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 2 Jul 2015 23:40:08 -0700
Subject: [PATCH 091/260] feat: exponential backoff delay example

---
 app/build.gradle                              |   2 +-
 .../rxjava/ExponentialBackoffFragment.java    | 154 ++++++++++++++++++
 .../android/rxjava/MainFragment.java          |  19 ++-
 .../layout/fragment_exponential_backoff.xml   |  47 ++++++
 app/src/main/res/layout/fragment_main.xml     |   7 +
 app/src/main/res/values/strings.xml           |   2 +
 6 files changed, 222 insertions(+), 9 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
 create mode 100644 app/src/main/res/layout/fragment_exponential_backoff.xml

diff --git a/app/build.gradle b/app/build.gradle
index 7ff86bf2..3b59410e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,7 +8,7 @@ dependencies {
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile 'io.reactivex:rxandroid:0.24.0'
-    //compile 'io.reactivex:rxjava-math:0.21.0'
+    compile 'io.reactivex:rxjava-math:0.21.0'
 
     compile 'com.squareup.retrofit:retrofit:1.6.1'
     compile 'com.squareup.okhttp:okhttp:2.0.0'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
new file mode 100644
index 00000000..c9edc5e0
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
@@ -0,0 +1,154 @@
+package com.morihacky.android.rxjava;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ListView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import rx.Observable;
+import rx.Observer;
+import rx.functions.Action0;
+import rx.functions.Func1;
+import rx.observables.MathObservable;
+import rx.subscriptions.CompositeSubscription;
+import timber.log.Timber;
+
+import static android.os.Looper.getMainLooper;
+
+public class ExponentialBackoffFragment
+      extends BaseFragment {
+
+    @InjectView(R.id.list_threading_log) ListView _logList;
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    private CompositeSubscription _subscriptions = new CompositeSubscription();
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_exponential_backoff, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    @OnClick(R.id.btn_eb_retry)
+    public void startRetryingWithExponentialBackoffStrategy() {
+        _logs = new ArrayList<>();
+        _adapter.clear();
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    @OnClick(R.id.btn_eb_delay)
+    public void startExecutingWithExponentialBackoffDelay() {
+
+        _logs = new ArrayList<>();
+        _adapter.clear();
+
+        _subscriptions.add(//
+
+              Observable.range(1, 4)//
+                    .delay(new Func1<Integer, Observable<Integer>>() {
+                        @Override
+                        public Observable<Integer> call(final Integer integer) {
+                            // Rx-y way of doing the Fibonnaci :P
+                            return MathObservable//
+                                  .sumInteger(Observable.range(1, integer))
+                                  .flatMap(new Func1<Integer, Observable<Integer>>() {
+                                      @Override
+                                      public Observable<Integer> call(Integer targetSecondDelay) {
+                                          return Observable.just(integer)
+                                                .delay(targetSecondDelay, TimeUnit.SECONDS);
+                                      }
+                                  });
+                        }
+                    })//
+                    .doOnSubscribe(new Action0() {
+                        @Override
+                        public void call() {
+                            _log(String.format("Execute 4 tasks with delay - time now: [xx:%2d]",
+                                  _getSecondHand()));
+                        }
+                    })//
+                    .subscribe(new Observer<Integer>() {
+                        @Override
+                        public void onCompleted() {
+                            Timber.d("onCompleted");
+                            _log("Completed");
+                        }
+
+                        @Override
+                        public void onError(Throwable e) {
+                            Timber.d(e, "arrrr. Error");
+                            _log("Error");
+                        }
+
+                        @Override
+                        public void onNext(Integer integer) {
+                            Timber.d("emitting %d [xx:%2d]", integer, _getSecondHand());
+                            _log(String.format("emitting %d  [xx:%2d]", integer, _getSecondHand()));
+
+                        }
+                    }));
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    private int _getSecondHand() {
+        long millis = System.currentTimeMillis();
+        return (int) (TimeUnit.MILLISECONDS.toSeconds(millis) -
+                      TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
+    }
+
+    private void _setupLogger() {
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+        _logs.add(logMsg);
+
+        // You can only do below stuff on main thread.
+        new Handler(getMainLooper()).post(new Runnable() {
+
+            @Override
+            public void run() {
+                _adapter.clear();
+                _adapter.addAll(_logs);
+            }
+        });
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index ce9b926f..c80aa11b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -46,20 +46,15 @@ public void demoThrottling() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
               .addToBackStack(this.toString())
-              .replace(R.id.activity_main,
-                    new DebounceSearchEmitterFragment(),
-                    this.toString())
+              .replace(R.id.activity_main, new DebounceSearchEmitterFragment(), this.toString())
               .commit();
     }
 
     @OnClick(R.id.btn_demo_retrofit)
     public void demoRetrofitCalls() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(this.toString())
+        getActivity().getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
               //.replace(R.id.activity_main, new RetrofitAsyncTaskDeathFragment(), this.toString())
-              .replace(R.id.activity_main, new RetrofitFragment(), this.toString())
-              .commit();
+              .replace(R.id.activity_main, new RetrofitFragment(), this.toString()).commit();
     }
 
     @OnClick(R.id.btn_demo_double_binding_textview)
@@ -127,4 +122,12 @@ public void demoTimerIntervalDelays() {
               .commit();
     }
 
+    @OnClick(R.id.btn_demo_exponential_backoff)
+    public void demoExponentialBackoff() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(this.toString())
+              .replace(R.id.activity_main, new ExponentialBackoffFragment(), this.toString())
+              .commit();
+    }
 }
diff --git a/app/src/main/res/layout/fragment_exponential_backoff.xml b/app/src/main/res/layout/fragment_exponential_backoff.xml
new file mode 100644
index 00000000..10ac11d6
--- /dev/null
+++ b/app/src/main/res/layout/fragment_exponential_backoff.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_exponential_backoff"
+        />
+
+
+    <LinearLayout
+        android:layout_gravity="center"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        >
+
+        <Button
+            android:id="@+id/btn_eb_retry"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="wrap_content"
+            android:text="Retry"
+            />
+
+        <Button
+            android:id="@+id/btn_eb_delay"
+            android:layout_weight="1"
+            android:layout_height="wrap_content"
+            android:layout_width="wrap_content"
+            android:text="Delay"
+            />
+    </LinearLayout>
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 0f2bb363..6ca9b982 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -86,5 +86,12 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_timing"
             />
+
+        <Button
+            android:id="@+id/btn_demo_exponential_backoff"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_exponential_backoff"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d7323172..b103ce5e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -17,6 +17,7 @@
     <string name="btn_demo_form_validation_combinel">Form Validation with CombineLatest</string>
     <string name="btn_demo_pseudocache">Pseudo cache using concat</string>
     <string name="btn_demo_timing">Variations of timing/intervals/delays</string>
+    <string name="btn_demo_exponential_backoff">Exponential backoff</string>
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
@@ -26,6 +27,7 @@
     <string name="msg_demo_retrofit_async_task_death">This shows how you can replace an AsyncTask with RxJava. The interesting parts are in the code.</string>
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates <ba></ba>sed on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
     <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
+    <string name="msg_demo_exponential_backoff">These two examples demonstrate retrying and executing with a delay using an exponential backoff strategy.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete)</string>

From 6a8fea36dca37b78107ed84a486498b0d02e0856 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 3 Jul 2015 00:10:01 -0700
Subject: [PATCH 092/260] feat: flush out example that retries with an
 exponential backoff strategy

---
 README.md                                     |  5 ++
 .../rxjava/ExponentialBackoffFragment.java    | 86 +++++++++++++++++--
 2 files changed, 86 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index f7cc9d49..db7b9ec1 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,11 @@ Say you have a network failure. A sensible strategy would be to NOT keep retryin
 
 We simulate this behaviour using RxJava with the `retryWhen`
 
+`RetryWithDelay` code snippet courtesy:
+
+* http://stackoverflow.com/a/25292833/159825
+* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+
 #### "repeat" with exponential backoff
 
 Another variant of the exponential backoff strategy is to execute an operation repeatedly for a given number of times, but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
index c9edc5e0..6d254623 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
@@ -67,9 +67,34 @@ public void onPause() {
     public void startRetryingWithExponentialBackoffStrategy() {
         _logs = new ArrayList<>();
         _adapter.clear();
-    }
 
-    // -----------------------------------------------------------------------------------
+        _subscriptions.add(//
+              Observable//
+                    .error(new RuntimeException("testing")) // always fails
+                    .retryWhen(new RetryWithDelay(5, 1000))//
+                    .doOnSubscribe(new Action0() {
+                        @Override
+                        public void call() {
+                            _log("Attempting the impossible 5 times in intervals of 1s");
+                        }
+                    })//
+                    .subscribe(new Observer<Object>() {
+                        @Override
+                        public void onCompleted() {
+                            Timber.d("on Completed");
+                        }
+
+                        @Override
+                        public void onError(Throwable e) {
+                            _log("Error: I give up!");
+                        }
+
+                        @Override
+                        public void onNext(Object aVoid) {
+                            Timber.d("on Next");
+                        }
+                    }));
+    }
 
     @OnClick(R.id.btn_eb_delay)
     public void startExecutingWithExponentialBackoffDelay() {
@@ -98,7 +123,7 @@ public Observable<Integer> call(Integer targetSecondDelay) {
                     .doOnSubscribe(new Action0() {
                         @Override
                         public void call() {
-                            _log(String.format("Execute 4 tasks with delay - time now: [xx:%2d]",
+                            _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
                                   _getSecondHand()));
                         }
                     })//
@@ -117,8 +142,10 @@ public void onError(Throwable e) {
 
                         @Override
                         public void onNext(Integer integer) {
-                            Timber.d("emitting %d [xx:%2d]", integer, _getSecondHand());
-                            _log(String.format("emitting %d  [xx:%2d]", integer, _getSecondHand()));
+                            Timber.d("executing Task %d [xx:%02d]", integer, _getSecondHand());
+                            _log(String.format("executing Task %d  [xx:%02d]",
+                                  integer,
+                                  _getSecondHand()));
 
                         }
                     }));
@@ -132,6 +159,8 @@ private int _getSecondHand() {
                       TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
     }
 
+    // -----------------------------------------------------------------------------------
+
     private void _setupLogger() {
         _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
@@ -151,4 +180,51 @@ public void run() {
             }
         });
     }
+
+    // -----------------------------------------------------------------------------------
+
+    // CAUTION:
+    // --------------------------------------
+    // THIS class HAS NO BUSINESS BEING non-static
+    // I ONLY did this cause i wanted access to the `_log` method from inside here
+    // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
+
+    // It's 12am in the morning and i feel lazy dammit !!!
+
+    //public static class RetryWithDelay
+    public class RetryWithDelay
+          implements Func1<Observable<? extends Throwable>, Observable<?>> {
+
+        private final int _maxRetries;
+        private final int _retryDelayMillis;
+        private int _retryCount;
+
+        public RetryWithDelay(final int maxRetries, final int retryDelayMillis) {
+            _maxRetries = maxRetries;
+            _retryDelayMillis = retryDelayMillis;
+            _retryCount = 0;
+        }
+
+        @Override
+        public Observable<?> call(Observable<? extends Throwable> attempts) {
+            return attempts.flatMap(new Func1<Throwable, Observable<?>>() {
+                @Override
+                public Observable<?> call(Throwable throwable) {
+                    if (++_retryCount < _maxRetries) {
+                        // When this Observable calls onNext, the original
+                        // Observable will be retried (i.e. re-subscribed).
+                        Timber.d("Retrying in %d ms", _retryCount * _retryDelayMillis);
+                        _log(String.format("Retrying in %d ms", _retryCount * _retryDelayMillis));
+
+                        return Observable.timer(_retryCount * _retryDelayMillis,
+                              TimeUnit.MILLISECONDS);
+                    }
+
+                    Timber.d("Argh! i give up");
+                    // Max retries hit. Just pass the error along.
+                    return Observable.error(throwable);
+                }
+            });
+        }
+    }
 }
\ No newline at end of file

From 67be410d6b6016ee01e1ee289b1db79335602b0e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 3 Jul 2015 00:15:47 -0700
Subject: [PATCH 093/260] fix: typos

---
 README.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index db7b9ec1..acebd27c 100644
--- a/README.md
+++ b/README.md
@@ -102,26 +102,26 @@ Cases demonstrated here:
 
 ### Exponential backoff
 
-[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output we alter the rate of a process (usually reduce the number of retries or increase the wait time before retrying or re-executing a cetain process).
+[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
 
-It makes far more sense with examples, and RxJava makes it (relatively) simple to achieve such a strategy.
+The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy.
 
-#### retry (if error) with exponential backoff
+#### Retry (if error) with exponential backoff
 
 Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
 
-We simulate this behaviour using RxJava with the `retryWhen`
+We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
 
 `RetryWithDelay` code snippet courtesy:
 
 * http://stackoverflow.com/a/25292833/159825
 * Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
 
-#### "repeat" with exponential backoff
+#### "Repeat" with exponential backoff
 
-Another variant of the exponential backoff strategy is to execute an operation repeatedly for a given number of times, but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
+Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
 
-Simulating this behavior is actually way more simpler than the retry mechanism. You can use a variant of the `delay` operator to achieve this.
+Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
 
 ## Work in Progress:
 

From 0388c1e504cc8e83f07413a2d7f78c54891b1352 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 3 Jul 2015 10:30:04 -0700
Subject: [PATCH 094/260] give Mike credit for lighting fire under my butt and
 implementing example

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index acebd27c..af7b7b0b 100644
--- a/README.md
+++ b/README.md
@@ -104,7 +104,7 @@ Cases demonstrated here:
 
 [Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
 
-The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy.
+The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
 
 #### Retry (if error) with exponential backoff
 

From c7fafa8a01d99d333559b520eac78320b4da9d6e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 3 Jul 2015 11:38:17 -0700
Subject: [PATCH 095/260] fix: note on improvised pseudo caching example +
 typos,grammar:

---
 README.md | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index af7b7b0b..8d98d965 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,11 @@ This is a repository with real-world useful examples of using RxJava with Androi
 
 ### Concurrency using schedulers
 
-A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread), and feed the results back to the UI/main thread, on completion. This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
+A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
 The long operation is simulated by a blocking Thread.sleep call (since this is done in a background thread, our UI is never interrupted).
 
-To really see this example shine. Hit the button multiple times and see how the button click (which is a ui operation) is never blocked because the long operation only runs in the background.
+To really see this example shine. Hit the button multiple times and see how the button click (which is a UI operation) is never blocked because the long operation only runs in the background.
 
 ### Accumulate calls (buffer)
 
@@ -19,15 +19,15 @@ This is a demo of how events can be accumulated using the "buffer" operation.
 
 A button is provided and we accumulate the number of clicks on that button, over a span of time and then spit out the final results.
 
-If you hit the button once. you'll get message saying the button was hit once. If you hit it 5 times continuosly within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying "Button hit once").
+If you hit the button once, you'll get a message saying the button was hit once. If you hit it 5 times continuously within a span of 2 seconds, then you get a single log, saying you hit that button 5 times (vs 5 individual logs saying "Button hit once").
 
 Note:
 
-If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation you can also have a look at this [blog post](http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/).
+If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/).
 
 ### Instant/Auto searching (subject + debounce)
 
-This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce , Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
+This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce, Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
 As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the lastly emitted event (i.e. input) and log that.
 
@@ -35,9 +35,9 @@ This is the debounce/throttleWithTimeout method in RxJava.
 
 ### Retrofit and RxJava (zip, flatmap)
 
-[Retrofit from Square](http://square.github.io/retrofit/) is an amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples hitting the github api, taken straight up from the android demigod-developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motiviation to use RxJava was from attending this talk at Netflix.
+[Retrofit from Square](http://square.github.io/retrofit/) is an amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples hitting the GitHub API, taken straight up from the android demigod-developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motivation to use RxJava was from attending this talk at Netflix.
 
-Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the github api quota pretty fast so send in an oauth-token as a parameter if you want to keep running these examples often).
+Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
 
 ### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
@@ -55,7 +55,7 @@ The code for this example has already been written by one Mr.skehlet in the inte
 
 ### Double binding with TextViews
 
-Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two way data binding", where when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
+Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two-way data binding", where when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
 
 While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 
@@ -89,6 +89,14 @@ Using concat, you can retrieve information from an observable first (presumably
 
 For the purposes of illustration i use an in-memory `List` (not an actual disk cache), then shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
 
+**Update:**
+
+After a [conversation I had with @artem_zin](https://twitter.com/kaushikgopal/status/591271805211451392), we arrived at an alternative solution to the same problem. One that used the [`.merge`](http://reactivex.io/documentation/operators/merge.html) operator instead.
+
+The `concat` (and the equivalent [`startWith`](http://reactivex.io/documentation/operators/startwith.html)) opeartor is strictly sequential, meaning all of the items emitted by the first Observable are emitted strictly before any of the items from the second Observable are emitted. So assuming the first observable (for some strange reason) takes really long to run through all its items, even if the first few items from the second observable have come down the wire it will forcibly be queued.
+
+The `merge` operator on the other hand interleaves items as they are emitted. The problem though is for some strange reason the same item is emitted by the cache or slower observable, it will overwrite the newer content. To account for this you have to monitor the "resultAge" somehow. This is demonstrated in the updated solution `PseudoCacheMergeFragment`.
+
 ### Simple Timing demos using timer/interval/delay
 
 This is a super simple and straightforward example which shows you how to use RxJava's `timer`, `interval` and `delay` operators to handle a bunch of cases where you want to run a task at specific intervals. Basically say NO to Android `TimerTask`s.
@@ -154,4 +162,4 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
-You agree that all contributions to this repository, in the form of fixes, pull-requests, new examples etc. follow the above mentioned license.
\ No newline at end of file
+You agree that all contributions to this repository, in the form of fixes, pull-requests, new examples etc. follow the above-mentioned license.
\ No newline at end of file

From 7a96bf42b2793898f0d87d00448b6171fa0fb45c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 3 Jul 2015 11:39:08 -0700
Subject: [PATCH 096/260] feat: improvised pseudo cache after conversation with
 artem https://twitter.com/kaushikgopal/status/591271805211451392

---
 .../android/rxjava/MainFragment.java          |   3 +-
 .../rxjava/PseudoCacheMergeFragment.java      | 172 ++++++++++++++++++
 2 files changed, 174 insertions(+), 1 deletion(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index c80aa11b..1d1c236d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -109,7 +109,8 @@ public void pseudoCacheDemo() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
               .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
+              //.replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
+              .replace(R.id.activity_main, new PseudoCacheMergeFragment(), this.toString())
               .commit();
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
new file mode 100644
index 00000000..f2165950
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
@@ -0,0 +1,172 @@
+package com.morihacky.android.rxjava;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.util.Pair;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.retrofit.Contributor;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import retrofit.RequestInterceptor;
+import retrofit.RestAdapter;
+import rx.Observable;
+import rx.Subscriber;
+import rx.Subscription;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func1;
+import timber.log.Timber;
+
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static java.lang.String.format;
+
+public class PseudoCacheMergeFragment
+      extends BaseFragment {
+
+    @InjectView(R.id.log_list) ListView _resultList;
+
+    private Subscription _subscription = null;
+    private HashMap<String, Long> _contributionMap = null;
+    private HashMap<Contributor, Long> _resultAgeMap = new HashMap<>();
+    private ArrayAdapter<String> _adapter;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
+        ButterKnife.inject(this, layout);
+        _initializeCache();
+        return layout;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        if (_subscription != null) {
+            _subscription.unsubscribe();
+        }
+    }
+
+    @OnClick(R.id.btn_start_pseudo_cache)
+    public void onDemoPseudoCacheClicked() {
+        _adapter = new ArrayAdapter<>(getActivity(),
+              R.layout.item_log,
+              R.id.item_log,
+              new ArrayList<String>());
+
+        _resultList.setAdapter(_adapter);
+        _initializeCache();
+
+        Observable.merge(_getCachedData(), _getFreshData())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Pair<Contributor, Long>>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Pair<Contributor, Long> contributorAgePair) {
+                      Contributor contributor = contributorAgePair.first;
+
+                      if (_resultAgeMap.containsKey(contributor) &&
+                          _resultAgeMap.get(contributor) > contributorAgePair.second) {
+                          return;
+                      }
+
+                      _contributionMap.put(contributor.login, contributor.contributions);
+                      _resultAgeMap.put(contributor, contributorAgePair.second);
+
+                      _adapter.clear();
+                      _adapter.addAll(getListStringFromMap());
+                  }
+              });
+    }
+
+    private List<String> getListStringFromMap() {
+        List<String> list = new ArrayList<>();
+
+        for (String username : _contributionMap.keySet()) {
+            String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
+            list.add(rowLog);
+        }
+
+        return list;
+    }
+
+    private Observable<Pair<Contributor, Long>> _getCachedData() {
+
+        List<Pair<Contributor, Long>> list = new ArrayList<>();
+
+        Pair<Contributor, Long> dataWithAgePair;
+
+        for (String username : _contributionMap.keySet()) {
+            Contributor c = new Contributor();
+            c.login = username;
+            c.contributions = _contributionMap.get(username);
+
+            dataWithAgePair = new Pair<>(c, System.currentTimeMillis());
+            list.add(dataWithAgePair);
+        }
+
+        return Observable.from(list);
+    }
+
+    private Observable<Pair<Contributor, Long>> _getFreshData() {
+        return _createGithubApi().contributors("square", "retrofit")
+              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                  @Override
+                  public Observable<Contributor> call(List<Contributor> contributors) {
+                      return Observable.from(contributors);
+                  }
+              })
+              .map(new Func1<Contributor, Pair<Contributor, Long>>() {
+                  @Override
+                  public Pair<Contributor, Long> call(Contributor contributor) {
+                      return new Pair<>(contributor, System.currentTimeMillis());
+                  }
+              });
+    }
+
+    private GithubApi _createGithubApi() {
+
+        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
+              "https://api.github.com/");
+        //.setLogLevel(RestAdapter.LogLevel.FULL);
+
+        final String githubToken = getResources().getString(R.string.github_oauth_token);
+        if (!isNullOrEmpty(githubToken)) {
+            builder.setRequestInterceptor(new RequestInterceptor() {
+                @Override
+                public void intercept(RequestFacade request) {
+                    request.addHeader("Authorization", format("token %s", githubToken));
+                }
+            });
+        }
+
+        return builder.build().create(GithubApi.class);
+    }
+
+    private void _initializeCache() {
+        _contributionMap = new HashMap<>();
+        _contributionMap.put("JakeWharton", 0l);
+        _contributionMap.put("pforhan", 0l);
+        _contributionMap.put("edenman", 0l);
+        _contributionMap.put("swankjesse", 0l);
+        _contributionMap.put("bruceLee", 0l);
+    }
+}

From 8379b693701316cdb2939b2f2cad1e67e3621b0a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Fri, 3 Jul 2015 11:48:08 -0700
Subject: [PATCH 097/260] Update README.md

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 8d98d965..b5736813 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@ After a [conversation I had with @artem_zin](https://twitter.com/kaushikgopal/st
 
 The `concat` (and the equivalent [`startWith`](http://reactivex.io/documentation/operators/startwith.html)) opeartor is strictly sequential, meaning all of the items emitted by the first Observable are emitted strictly before any of the items from the second Observable are emitted. So assuming the first observable (for some strange reason) takes really long to run through all its items, even if the first few items from the second observable have come down the wire it will forcibly be queued.
 
-The `merge` operator on the other hand interleaves items as they are emitted. The problem though is for some strange reason the same item is emitted by the cache or slower observable, it will overwrite the newer content. To account for this you have to monitor the "resultAge" somehow. This is demonstrated in the updated solution `PseudoCacheMergeFragment`.
+The `merge` operator on the other hand interleaves items as they are emitted. The problem here though is if for some strange reason an item is emitted by the cache or slower observable *after* the newer/fresher observable, it will overwrite the newer content. To account for this you have to monitor the "resultAge" somehow. This is demonstrated in the updated solution `PseudoCacheMergeFragment`.
 
 ### Simple Timing demos using timer/interval/delay
 
@@ -162,4 +162,4 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
-You agree that all contributions to this repository, in the form of fixes, pull-requests, new examples etc. follow the above-mentioned license.
\ No newline at end of file
+You agree that all contributions to this repository, in the form of fixes, pull-requests, new examples etc. follow the above-mentioned license.

From a0b2e2d600ae23a58dd57e9247d4ccce3477bed5 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 6 Jul 2015 15:31:06 -0700
Subject: [PATCH 098/260] fix: memory leak issue #15 construct fragment +
 backstack properly

This was a red herring and not caused by the Rx activity.
Basic fragment construction + backstack was at fault
---
 .../android/rxjava/MainActivity.java          |  7 +-
 .../android/rxjava/MainFragment.java          | 79 +++++++++++--------
 .../com/morihacky/android/rxjava/MyApp.java   |  3 +
 app/src/main/res/layout/activity_main.xml     |  6 --
 4 files changed, 52 insertions(+), 43 deletions(-)
 delete mode 100644 app/src/main/res/layout/activity_main.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 69e9c6a3..a0c77692 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -3,7 +3,6 @@
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.rxbus.RxBus;
-import timber.log.Timber;
 
 public class MainActivity
       extends FragmentActivity {
@@ -22,14 +21,10 @@ public RxBus getRxBusSingleton() {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_main);
-
-        Timber.plant(new Timber.DebugTree());
 
         if (savedInstanceState == null) {
             getSupportFragmentManager().beginTransaction()
-                  .addToBackStack(this.toString())
-                  .replace(R.id.activity_main, new MainFragment(), this.toString())
+                  .replace(android.R.id.content, new MainFragment(), this.toString())
                   .commit();
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 1d1c236d..c0b0cc61 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -25,10 +25,10 @@ public View onCreateView(LayoutInflater inflater,
     public void demoConcurrencyWithSchedulers() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main,
+              .addToBackStack(ConcurrencyWithSchedulersDemoFragment.class.getName())
+              .replace(android.R.id.content,
                     new ConcurrencyWithSchedulersDemoFragment(),
-                    this.toString())
+                    ConcurrencyWithSchedulersDemoFragment.class.getName())
               .commit();
     }
 
@@ -36,8 +36,10 @@ public void demoConcurrencyWithSchedulers() {
     public void demoBuffer() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new BufferDemoFragment(), this.toString())
+              .addToBackStack(BufferDemoFragment.class.toString())
+              .replace(android.R.id.content,
+                    new BufferDemoFragment(),
+                    BufferDemoFragment.class.toString())
               .commit();
     }
 
@@ -45,24 +47,31 @@ public void demoBuffer() {
     public void demoThrottling() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new DebounceSearchEmitterFragment(), this.toString())
+              .addToBackStack(DebounceSearchEmitterFragment.class.toString())
+              .replace(android.R.id.content,
+                    new DebounceSearchEmitterFragment(),
+                    DebounceSearchEmitterFragment.class.toString())
               .commit();
     }
 
     @OnClick(R.id.btn_demo_retrofit)
     public void demoRetrofitCalls() {
-        getActivity().getSupportFragmentManager().beginTransaction().addToBackStack(this.toString())
-              //.replace(R.id.activity_main, new RetrofitAsyncTaskDeathFragment(), this.toString())
-              .replace(R.id.activity_main, new RetrofitFragment(), this.toString()).commit();
+        getActivity().getSupportFragmentManager()
+              .beginTransaction().addToBackStack(RetrofitFragment.class.toString())
+              //.replace(android.R.id.content, new RetrofitAsyncTaskDeathFragment(), RetrofitAsyncTaskDeathFragment.class.toString())
+              .replace(android.R.id.content,
+                    new RetrofitFragment(),
+                    RetrofitFragment.class.toString()).commit();
     }
 
     @OnClick(R.id.btn_demo_double_binding_textview)
     public void demoDoubleBindingWithPublishSubject() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new DoubleBindingTextViewFragment(), this.toString())
+              .addToBackStack(DoubleBindingTextViewFragment.class.toString())
+              .replace(android.R.id.content,
+                    new DoubleBindingTextViewFragment(),
+                    DoubleBindingTextViewFragment.class.toString())
               .commit();
     }
 
@@ -70,8 +79,8 @@ public void demoDoubleBindingWithPublishSubject() {
     public void demoPolling() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new PollingFragment(), this.toString())
+              .addToBackStack(PollingFragment.class.toString())
+              .replace(android.R.id.content, new PollingFragment(), PollingFragment.class.toString())
               .commit();
     }*/
 
@@ -79,8 +88,10 @@ public void demoPolling() {
     public void demoRxBus() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new RxBusDemoFragment(), this.toString())
+              .addToBackStack(RxBusDemoFragment.class.toString())
+              .replace(android.R.id.content,
+                    new RxBusDemoFragment(),
+                    RxBusDemoFragment.class.toString())
               .commit();
     }
 
@@ -88,8 +99,10 @@ public void demoRxBus() {
     public void demoTimeout() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new TimeoutDemoFragment(), this.toString())
+              .addToBackStack(TimeoutDemoFragment.class.toString())
+              .replace(android.R.id.content,
+                    new TimeoutDemoFragment(),
+                    TimeoutDemoFragment.class.toString())
               .commit();
     }
 
@@ -97,29 +110,31 @@ public void demoTimeout() {
     public void formValidation() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main,
+              .addToBackStack(FormValidationCombineLatestFragment.class.toString())
+              .replace(android.R.id.content,
                     new FormValidationCombineLatestFragment(),
-                    this.toString())
+                    FormValidationCombineLatestFragment.class.toString())
               .commit();
     }
 
     @OnClick(R.id.btn_demo_pseudo_cache)
     public void pseudoCacheDemo() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(this.toString())
-              //.replace(R.id.activity_main, new PseudoCacheConcatFragment(), this.toString())
-              .replace(R.id.activity_main, new PseudoCacheMergeFragment(), this.toString())
-              .commit();
+        getActivity().getSupportFragmentManager().beginTransaction().addToBackStack(
+              PseudoCacheMergeFragment.class.toString())
+              //.replace(android.R.id.content, new PseudoCacheConcatFragment(), PseudoCacheConcatFragment.class.toString())
+              .replace(android.R.id.content,
+                    new PseudoCacheMergeFragment(),
+                    PseudoCacheMergeFragment.class.toString()).commit();
     }
 
     @OnClick(R.id.btn_demo_timing)
     public void demoTimerIntervalDelays() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new TimingDemoFragment(), this.toString())
+              .addToBackStack(TimingDemoFragment.class.toString())
+              .replace(android.R.id.content,
+                    new TimingDemoFragment(),
+                    TimingDemoFragment.class.toString())
               .commit();
     }
 
@@ -127,8 +142,10 @@ public void demoTimerIntervalDelays() {
     public void demoExponentialBackoff() {
         getActivity().getSupportFragmentManager()
               .beginTransaction()
-              .addToBackStack(this.toString())
-              .replace(R.id.activity_main, new ExponentialBackoffFragment(), this.toString())
+              .addToBackStack(ExponentialBackoffFragment.class.toString())
+              .replace(android.R.id.content,
+                    new ExponentialBackoffFragment(),
+                    ExponentialBackoffFragment.class.toString())
               .commit();
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index 4dad4cc7..b66f855f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -3,6 +3,7 @@
 import android.app.Application;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
+import timber.log.Timber;
 
 public class MyApp
       extends Application {
@@ -24,5 +25,7 @@ public void onCreate() {
 
         _instance = (MyApp) getApplicationContext();
         _refWatcher = LeakCanary.install(this);
+
+        Timber.plant(new Timber.DebugTree());
     }
 }
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
deleted file mode 100644
index bcdf97bb..00000000
--- a/app/src/main/res/layout/activity_main.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<FrameLayout
-    android:id="@+id/activity_main"
-    android:layout_height="match_parent"
-    android:layout_width="match_parent"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    />

From ae93f349c2680dde6484f0b1c867b2a64ab61559 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 9 Jul 2015 13:49:28 -0700
Subject: [PATCH 099/260] feat: wip add a persist over rotation fragment

---
 .../android/rxjava/MainActivity.java          |   3 +-
 .../android/rxjava/MainFragment.java          |  11 ++
 .../rxjava/RotationPersistFragment.java       | 130 ++++++++++++++++++
 .../rxjava/RotationPersistWorkerFragment.java |  97 +++++++++++++
 app/src/main/res/layout/fragment_main.xml     |   6 +
 .../res/layout/fragment_rotation_persist.xml  |  30 ++++
 app/src/main/res/values/strings.xml           |   2 +
 7 files changed, 278 insertions(+), 1 deletion(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
 create mode 100644 app/src/main/res/layout/fragment_rotation_persist.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index a0c77692..84c38e28 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -24,7 +24,8 @@ protected void onCreate(Bundle savedInstanceState) {
 
         if (savedInstanceState == null) {
             getSupportFragmentManager().beginTransaction()
-                  .replace(android.R.id.content, new MainFragment(), this.toString())
+                  //.replace(android.R.id.content, new MainFragment(), this.toString())
+                  .replace(android.R.id.content, new RotationPersistFragment(), this.toString())
                   .commit();
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index c0b0cc61..4239bbad 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -148,4 +148,15 @@ public void demoExponentialBackoff() {
                     ExponentialBackoffFragment.class.toString())
               .commit();
     }
+
+    @OnClick(R.id.btn_demo_rotation_persist)
+    public void demoRotationPersist() {
+        getActivity().getSupportFragmentManager()
+              .beginTransaction()
+              .addToBackStack(RotationPersistFragment.class.toString())
+              .replace(android.R.id.content,
+                    new RotationPersistFragment(),
+                    RotationPersistFragment.class.toString())
+              .commit();
+    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
new file mode 100644
index 00000000..0a5d6fe4
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
@@ -0,0 +1,130 @@
+package com.morihacky.android.rxjava;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.annotation.Nullable;
+import android.support.v4.app.FragmentManager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ListView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
+import java.util.ArrayList;
+import java.util.List;
+import rx.Observable;
+import rx.Observer;
+import rx.subscriptions.CompositeSubscription;
+import timber.log.Timber;
+
+import static android.os.Looper.getMainLooper;
+
+public class RotationPersistFragment
+      extends BaseFragment
+      implements RotationPersistWorkerFragment.IAmYourMaster {
+
+    @InjectView(R.id.list_threading_log) ListView _logList;
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    private CompositeSubscription _subscriptions = new CompositeSubscription();
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    @OnClick(R.id.btn_rotate_persist)
+    public void startRetryingWithExponentialBackoffStrategy() {
+        _logs = new ArrayList<>();
+        _adapter.clear();
+
+        String FRAG_TAG = RotationPersistWorkerFragment.class.getName();
+        FragmentManager fm = getActivity().getSupportFragmentManager();
+        RotationPersistWorkerFragment frag =//
+              (RotationPersistWorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+
+        if (frag == null) {
+            Timber.d("---- never created frag before");
+
+            // we've never created the frag before
+            frag = new RotationPersistWorkerFragment();
+            fm.beginTransaction().add(frag, FRAG_TAG).commit();
+        } else {
+            Timber.d("---- Worker frag already spawned");
+        }
+    }
+
+    @Override
+    public void observeResults(Observable<Integer> ints) {
+        Timber.d("observable instance ints %s", ints.toString());
+
+        _subscriptions.add(ints.subscribe(new Observer<Integer>() {
+            @Override
+            public void onCompleted() {
+                _log("Observable is complete");
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "Error in worker demo frag observable");
+                _log("Dang! something went wrong.");
+            }
+
+            @Override
+            public void onNext(Integer integer) {
+                _log(String.format("Worker frag spits out - %d", integer));
+            }
+        }));
+    }
+
+    // -----------------------------------------------------------------------------------
+
+    private void _setupLogger() {
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+        _logs.add(0, logMsg);
+
+        // You can only do below stuff on main thread.
+        new Handler(getMainLooper()).post(new Runnable() {
+
+            @Override
+            public void run() {
+                _adapter.clear();
+                _adapter.addAll(_logs);
+            }
+        });
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
new file mode 100644
index 00000000..9af14341
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
@@ -0,0 +1,97 @@
+package com.morihacky.android.rxjava;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import rx.Observable;
+import rx.functions.Func1;
+import timber.log.Timber;
+
+public class RotationPersistWorkerFragment
+      extends Fragment {
+
+    private Observable<Integer> _intsObservable;
+    private IAmYourMaster _masterFrag;
+
+    /**
+     * hold a refernce to the activity -> caller fragment
+     * this way when the worker frag kicks off
+     * we can talk back to the master and send results
+     */
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+
+        _masterFrag = (RotationPersistFragment) getActivity().getSupportFragmentManager()
+              .findFragmentByTag(RotationPersistFragment.class.getName());
+
+        List<Fragment> frags = ((MainActivity) activity).getSupportFragmentManager().getFragments();
+
+        Timber.d("---- there are currently %d fragments attached", frags.size());
+
+        for (Fragment f : frags) {
+            if (f instanceof IAmYourMaster) {
+                _masterFrag = (IAmYourMaster) f;
+            }
+        }
+
+        if (_masterFrag == null) {
+            throw new ClassCastException("We did not find a master who can understand us :( !");
+        }
+    }
+
+    /**
+     * This method will only be called once when the retained
+     * Fragment is first created.
+     */
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Retain this fragment across configuration changes.
+        setRetainInstance(true);
+
+
+        if (_intsObservable != null) {
+            return;
+        }
+
+        // Create and execute the "Hot" observable
+        Timber.d("---- Creating a new ints observable");
+        _intsObservable =//
+              Observable.interval(1, TimeUnit.SECONDS)//
+                    .map(new Func1<Long, Integer>() {
+                        @Override
+                        public Integer call(Long aLong) {
+                            return aLong.intValue();
+                        }
+                    })//
+                    .take(20)// cause i don't want this thing to run indefinitely
+                    .share(); // we need a "hot" observable for demoing the example
+    }
+
+    /**
+     * The Worker fragment has started doing it's thing
+     */
+    @Override
+    public void onStart() {
+        super.onStart();
+        _masterFrag.observeResults(_intsObservable);
+    }
+
+    /**
+     * Set the callback to null so we don't accidentally leak the
+     * Activity instance.
+     */
+    @Override
+    public void onDetach() {
+        super.onDetach();
+        _masterFrag = null;
+    }
+
+    public interface IAmYourMaster {
+        void observeResults(Observable<Integer> ints);
+    }
+}
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 6ca9b982..73b3e120 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -93,5 +93,11 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_exponential_backoff"
             />
+        <Button
+            android:id="@+id/btn_demo_rotation_persist"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_rotation_persist"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_rotation_persist.xml b/app/src/main/res/layout/fragment_rotation_persist.xml
new file mode 100644
index 00000000..ab06e78b
--- /dev/null
+++ b/app/src/main/res/layout/fragment_rotation_persist.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_rotation_persist"
+        />
+
+    <Button
+        android:id="@+id/btn_rotate_persist"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:text="Start operation"
+        />
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index b103ce5e..463b79d9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -18,6 +18,7 @@
     <string name="btn_demo_pseudocache">Pseudo cache using concat</string>
     <string name="btn_demo_timing">Variations of timing/intervals/delays</string>
     <string name="btn_demo_exponential_backoff">Exponential backoff</string>
+    <string name="btn_demo_rotation_persist">Rotation persist</string>
 
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
@@ -31,4 +32,5 @@
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete)</string>
+    <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
 </resources>

From 6be2ceae2da67b721e8a191872af180867a7b896 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 9 Jul 2015 14:03:57 -0700
Subject: [PATCH 100/260] chore: upgrade to rx android 0.25.0

---
 app/build.gradle                                              | 2 +-
 .../android/rxjava/ConcurrencyWithSchedulersDemoFragment.java | 2 +-
 .../android/rxjava/DebounceSearchEmitterFragment.java         | 3 ++-
 .../com/morihacky/android/rxjava/TimeoutDemoFragment.java     | 4 ++--
 .../android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java       | 3 ++-
 .../android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java       | 3 ++-
 .../android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java       | 3 ++-
 7 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 3b59410e..af1c76a2 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ dependencies {
 
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'io.reactivex:rxandroid:0.24.0'
+    compile 'io.reactivex:rxandroid:0.25.0'
     compile 'io.reactivex:rxjava-math:0.21.0'
 
     compile 'com.squareup.retrofit:retrofit:1.6.1'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index dac9749d..83f0f0ca 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -64,7 +64,7 @@ public void startLongOperation() {
         _progress.setVisibility(View.VISIBLE);
         _log("Button Clicked");
 
-        _subscription = AppObservable.bindFragment(this, _getObservable())      // Observable
+        _subscription = AppObservable.bindSupportFragment(this, _getObservable())      // Observable
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_getObserver());                             // Observer
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
index 6a71d07c..3c3c857d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
@@ -27,6 +27,7 @@
 
 import static java.lang.String.format;
 import static rx.android.app.AppObservable.bindFragment;
+import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class DebounceSearchEmitterFragment
       extends BaseFragment {
@@ -70,7 +71,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 
         Observable<OnTextChangeEvent> textChangeObservable = WidgetObservable.text(_inputSearchText);
 
-        _subscription = bindFragment(this,//
+        _subscription = bindSupportFragment(this,//
               textChangeObservable//
                     .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
                     .observeOn(AndroidSchedulers.mainThread()))//
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
index e70f6620..9a517d5e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
@@ -57,7 +57,7 @@ public View onCreateView(LayoutInflater inflater,
 
     @OnClick(R.id.btn_demo_timeout_1_2s)
     public void onStart2sTask() {
-        _subscription = AppObservable.bindFragment(TimeoutDemoFragment.this,
+        _subscription = AppObservable.bindSupportFragment(TimeoutDemoFragment.this,
               _getObservableTask_2sToComplete())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_getEventCompletionObserver());
@@ -65,7 +65,7 @@ public void onStart2sTask() {
 
     @OnClick(R.id.btn_demo_timeout_1_5s)
     public void onStart5sTask() {
-        _subscription = AppObservable.bindFragment(TimeoutDemoFragment.this,
+        _subscription = AppObservable.bindSupportFragment(TimeoutDemoFragment.this,
               _getObservableFor5sTask())
               .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
               .subscribeOn(Schedulers.computation())
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 332ad4dd..6aa39583 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -16,6 +16,7 @@
 import rx.subscriptions.CompositeSubscription;
 
 import static rx.android.app.AppObservable.bindFragment;
+import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class RxBusDemo_Bottom1Fragment
       extends BaseFragment {
@@ -45,7 +46,7 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         _subscriptions//
-              .add(bindFragment(this, _rxBus.toObserverable())//
+              .add(bindSupportFragment(this, _rxBus.toObserverable())//
                     .subscribe(new Action1<Object>() {
                         @Override
                         public void call(Object event) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 9bc91364..7f5cabcf 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -20,6 +20,7 @@
 import rx.subscriptions.CompositeSubscription;
 
 import static rx.android.app.AppObservable.bindFragment;
+import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class RxBusDemo_Bottom2Fragment
       extends BaseFragment {
@@ -52,7 +53,7 @@ public void onStart() {
         Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
 
         _subscriptions//
-              .add(bindFragment(this, tapEventEmitter)//
+              .add(bindSupportFragment(this, tapEventEmitter)//
                     .subscribe(new Action1<Object>() {
                         @Override
                         public void call(Object event) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index e3e144a8..a1fa81fc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -22,6 +22,7 @@
 import rx.subscriptions.CompositeSubscription;
 
 import static rx.android.app.AppObservable.bindFragment;
+import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class RxBusDemo_Bottom3Fragment
       extends BaseFragment {
@@ -54,7 +55,7 @@ public void onStart() {
         ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
 
         _subscriptions//
-              .add(bindFragment(this, tapEventEmitter)//
+              .add(bindSupportFragment(this, tapEventEmitter)//
                     .subscribe(new Action1<Object>() {
                         @Override
                         public void call(Object event) {

From ac58b96d2d5ba6492a9304c654a1cf84b7db79b1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 9 Jul 2015 14:04:25 -0700
Subject: [PATCH 101/260] feat: add a notification when observer subscribes for
 better feedback

---
 .../android/rxjava/RotationPersistFragment.java        | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
index 0a5d6fe4..2edb0616 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
@@ -16,6 +16,7 @@
 import java.util.List;
 import rx.Observable;
 import rx.Observer;
+import rx.functions.Action0;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
@@ -84,9 +85,14 @@ public void startRetryingWithExponentialBackoffStrategy() {
 
     @Override
     public void observeResults(Observable<Integer> ints) {
-        Timber.d("observable instance ints %s", ints.toString());
+        Timber.d("---- observable instance ints %s", ints.toString());
 
-        _subscriptions.add(ints.subscribe(new Observer<Integer>() {
+        _subscriptions.add(ints.doOnSubscribe(new Action0() {
+            @Override
+            public void call() {
+                _log("Subscribing to ints");
+            }
+        }).subscribe(new Observer<Integer>() {
             @Override
             public void onCompleted() {
                 _log("Observable is complete");

From b4cc9f1fb546c9035353711fd9684e688ef6cb07 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 11 Jul 2015 13:19:45 -0700
Subject: [PATCH 102/260] fix:  makes the observable warm, not hot. so this is
 a hack to simulate heat

---
 .../rxjava/RotationPersistWorkerFragment.java       | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
index 9af14341..a2df0025 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
@@ -16,7 +16,7 @@ public class RotationPersistWorkerFragment
     private IAmYourMaster _masterFrag;
 
     /**
-     * hold a refernce to the activity -> caller fragment
+     * hold a reference to the activity -> caller fragment
      * this way when the worker frag kicks off
      * we can talk back to the master and send results
      */
@@ -53,7 +53,6 @@ public void onCreate(Bundle savedInstanceState) {
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-
         if (_intsObservable != null) {
             return;
         }
@@ -68,8 +67,14 @@ public Integer call(Long aLong) {
                             return aLong.intValue();
                         }
                     })//
-                    .take(20)// cause i don't want this thing to run indefinitely
-                    .share(); // we need a "hot" observable for demoing the example
+                    .take(20);// cause i don't want this thing to run indefinitely
+
+        // -----------------------------------------------------------------------------------
+        // Making our observable "HOT" for the purpose of the demo.
+
+        _intsObservable = _intsObservable.share();
+        // Do not do this in production! (i blame Jake Wharton for giving me this clever idea)
+        _intsObservable.subscribe();
     }
 
     /**

From 1770d856404b4dde8861539dacc5acf74c0337f1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 11 Jul 2015 13:29:00 -0700
Subject: [PATCH 103/260] fix: cleanup

---
 README.md                                     | 10 ++++
 .../android/rxjava/MainActivity.java          |  3 +-
 .../rxjava/RotationPersistFragment.java       | 56 +++++++++----------
 .../rxjava/RotationPersistWorkerFragment.java | 23 +++-----
 4 files changed, 46 insertions(+), 46 deletions(-)

diff --git a/README.md b/README.md
index b5736813..9ea5d2b1 100644
--- a/README.md
+++ b/README.md
@@ -131,6 +131,16 @@ Another variant of the exponential backoff strategy is to execute an operation f
 
 Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
 
+### Rotation Persist
+
+A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
+
+This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
+
+Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left out.
+
+*There are certain quirks about the source "hot" observable used in this example. Watch out for a blog post where i explain the specifics. I would NOT suggest using this strategy for intentionally making your observables hot.*
+
 ## Work in Progress:
 
 Examples that I would like to have here, but haven't found the time yet to flush out.
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 84c38e28..a0c77692 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -24,8 +24,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         if (savedInstanceState == null) {
             getSupportFragmentManager().beginTransaction()
-                  //.replace(android.R.id.content, new MainFragment(), this.toString())
-                  .replace(android.R.id.content, new RotationPersistFragment(), this.toString())
+                  .replace(android.R.id.content, new MainFragment(), this.toString())
                   .commit();
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
index 2edb0616..d6257a99 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
@@ -26,7 +26,10 @@ public class RotationPersistFragment
       extends BaseFragment
       implements RotationPersistWorkerFragment.IAmYourMaster {
 
+    public static final String FRAG_TAG = RotationPersistWorkerFragment.class.getName();
+
     @InjectView(R.id.list_threading_log) ListView _logList;
+
     private LogAdapter _adapter;
     private List<String> _logs;
 
@@ -56,7 +59,6 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-
         RxUtils.unsubscribeIfNotNull(_subscriptions);
     }
 
@@ -67,48 +69,44 @@ public void startRetryingWithExponentialBackoffStrategy() {
         _logs = new ArrayList<>();
         _adapter.clear();
 
-        String FRAG_TAG = RotationPersistWorkerFragment.class.getName();
         FragmentManager fm = getActivity().getSupportFragmentManager();
         RotationPersistWorkerFragment frag =//
               (RotationPersistWorkerFragment) fm.findFragmentByTag(FRAG_TAG);
 
         if (frag == null) {
-            Timber.d("---- never created frag before");
-
-            // we've never created the frag before
             frag = new RotationPersistWorkerFragment();
             fm.beginTransaction().add(frag, FRAG_TAG).commit();
         } else {
-            Timber.d("---- Worker frag already spawned");
+            Timber.d("Worker frag already spawned");
         }
     }
 
     @Override
     public void observeResults(Observable<Integer> ints) {
-        Timber.d("---- observable instance ints %s", ints.toString());
-
-        _subscriptions.add(ints.doOnSubscribe(new Action0() {
-            @Override
-            public void call() {
-                _log("Subscribing to ints");
-            }
-        }).subscribe(new Observer<Integer>() {
-            @Override
-            public void onCompleted() {
-                _log("Observable is complete");
-            }
 
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "Error in worker demo frag observable");
-                _log("Dang! something went wrong.");
-            }
-
-            @Override
-            public void onNext(Integer integer) {
-                _log(String.format("Worker frag spits out - %d", integer));
-            }
-        }));
+        _subscriptions.add(//
+              ints.doOnSubscribe(new Action0() {
+                  @Override
+                  public void call() {
+                      _log("Subscribing to ints");
+                  }
+              }).subscribe(new Observer<Integer>() {
+                  @Override
+                  public void onCompleted() {
+                      _log("Observable is complete");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "Error in worker demo frag observable");
+                      _log("Dang! something went wrong.");
+                  }
+
+                  @Override
+                  public void onNext(Integer integer) {
+                      _log(String.format("Worker frag spits out - %d", integer));
+                  }
+              }));
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
index a2df0025..83f6b6ed 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
@@ -7,7 +7,6 @@
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
 import rx.functions.Func1;
-import timber.log.Timber;
 
 public class RotationPersistWorkerFragment
       extends Fragment {
@@ -16,7 +15,7 @@ public class RotationPersistWorkerFragment
     private IAmYourMaster _masterFrag;
 
     /**
-     * hold a reference to the activity -> caller fragment
+     * Hold a reference to the activity -> caller fragment
      * this way when the worker frag kicks off
      * we can talk back to the master and send results
      */
@@ -24,13 +23,7 @@ public class RotationPersistWorkerFragment
     public void onAttach(Activity activity) {
         super.onAttach(activity);
 
-        _masterFrag = (RotationPersistFragment) getActivity().getSupportFragmentManager()
-              .findFragmentByTag(RotationPersistFragment.class.getName());
-
         List<Fragment> frags = ((MainActivity) activity).getSupportFragmentManager().getFragments();
-
-        Timber.d("---- there are currently %d fragments attached", frags.size());
-
         for (Fragment f : frags) {
             if (f instanceof IAmYourMaster) {
                 _masterFrag = (IAmYourMaster) f;
@@ -38,13 +31,12 @@ public void onAttach(Activity activity) {
         }
 
         if (_masterFrag == null) {
-            throw new ClassCastException("We did not find a master who can understand us :( !");
+            throw new ClassCastException("We did not find a master who can understand us :(");
         }
     }
 
     /**
-     * This method will only be called once when the retained
-     * Fragment is first created.
+     * This method will only be called once when the retained Fragment is first created.
      */
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -57,8 +49,6 @@ public void onCreate(Bundle savedInstanceState) {
             return;
         }
 
-        // Create and execute the "Hot" observable
-        Timber.d("---- Creating a new ints observable");
         _intsObservable =//
               Observable.interval(1, TimeUnit.SECONDS)//
                     .map(new Func1<Long, Integer>() {
@@ -67,13 +57,16 @@ public Integer call(Long aLong) {
                             return aLong.intValue();
                         }
                     })//
-                    .take(20);// cause i don't want this thing to run indefinitely
+                    .take(20);
 
         // -----------------------------------------------------------------------------------
         // Making our observable "HOT" for the purpose of the demo.
 
         _intsObservable = _intsObservable.share();
-        // Do not do this in production! (i blame Jake Wharton for giving me this clever idea)
+
+        // Do not do this in production!
+        // `.share` is "warm" not "hot"
+        // the below forceful subscription fakes the heat
         _intsObservable.subscribe();
     }
 

From 4506ec13de37d58bccda989d9c6a4755a59e8b0f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 11 Jul 2015 18:00:29 -0700
Subject: [PATCH 104/260] fix: added link to blog post
 http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/

---
 README.md | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 9ea5d2b1..b748d037 100644
--- a/README.md
+++ b/README.md
@@ -139,14 +139,13 @@ This example shows you one strategy viz. using retained Fragments. I started usi
 
 Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left out.
 
-*There are certain quirks about the source "hot" observable used in this example. Watch out for a blog post where i explain the specifics. I would NOT suggest using this strategy for intentionally making your observables hot.*
+*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
 ## Work in Progress:
 
 Examples that I would like to have here, but haven't found the time yet to flush out.
 
 
-
 ### Pagination
 
 a. Simple pagination

From 9aaa14fc3c4f2f3b2b9c18ec320f84ae28c23715 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sat, 11 Jul 2015 18:11:34 -0700
Subject: [PATCH 105/260] fix: yet another typo

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index b748d037..92192979 100644
--- a/README.md
+++ b/README.md
@@ -137,7 +137,7 @@ A common question that's asked when using RxJava in Android is, "how do i resume
 
 This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
 
-Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left out.
+Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
 
 *There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 

From 1812c18064a1a508b3d704be21137b1e3ab868f0 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 13 Jul 2015 13:04:47 -0700
Subject: [PATCH 106/260] fix: use a connectable observable instead of share

---
 .../android/rxjava/RotationPersistFragment.java  | 10 ++++++----
 .../rxjava/RotationPersistWorkerFragment.java    | 16 +++++++++-------
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
index d6257a99..ecc92196 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
@@ -14,9 +14,9 @@
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
-import rx.Observable;
 import rx.Observer;
 import rx.functions.Action0;
+import rx.observables.ConnectableObservable;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
@@ -82,13 +82,13 @@ public void startRetryingWithExponentialBackoffStrategy() {
     }
 
     @Override
-    public void observeResults(Observable<Integer> ints) {
+    public void observeResults(ConnectableObservable<Integer> intsObservable) {
 
         _subscriptions.add(//
-              ints.doOnSubscribe(new Action0() {
+              intsObservable.doOnSubscribe(new Action0() {
                   @Override
                   public void call() {
-                      _log("Subscribing to ints");
+                      _log("Subscribing to intsObservable");
                   }
               }).subscribe(new Observer<Integer>() {
                   @Override
@@ -107,6 +107,8 @@ public void onNext(Integer integer) {
                       _log(String.format("Worker frag spits out - %d", integer));
                   }
               }));
+
+        intsObservable.connect();
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
index 83f6b6ed..bca944ee 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
@@ -7,11 +7,12 @@
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
 import rx.functions.Func1;
+import rx.observables.ConnectableObservable;
 
 public class RotationPersistWorkerFragment
       extends Fragment {
 
-    private Observable<Integer> _intsObservable;
+    private ConnectableObservable<Integer> storedIntsObservable;
     private IAmYourMaster _masterFrag;
 
     /**
@@ -45,11 +46,11 @@ public void onCreate(Bundle savedInstanceState) {
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-        if (_intsObservable != null) {
+        if (storedIntsObservable != null) {
             return;
         }
 
-        _intsObservable =//
+        Observable<Integer> intsObservable =//
               Observable.interval(1, TimeUnit.SECONDS)//
                     .map(new Func1<Long, Integer>() {
                         @Override
@@ -62,12 +63,13 @@ public Integer call(Long aLong) {
         // -----------------------------------------------------------------------------------
         // Making our observable "HOT" for the purpose of the demo.
 
-        _intsObservable = _intsObservable.share();
+        //_intsObservable = _intsObservable.share();
+        storedIntsObservable = intsObservable.replay();
 
         // Do not do this in production!
         // `.share` is "warm" not "hot"
         // the below forceful subscription fakes the heat
-        _intsObservable.subscribe();
+        //_intsObservable.subscribe();
     }
 
     /**
@@ -76,7 +78,7 @@ public Integer call(Long aLong) {
     @Override
     public void onStart() {
         super.onStart();
-        _masterFrag.observeResults(_intsObservable);
+        _masterFrag.observeResults(storedIntsObservable);
     }
 
     /**
@@ -90,6 +92,6 @@ public void onDetach() {
     }
 
     public interface IAmYourMaster {
-        void observeResults(Observable<Integer> ints);
+        void observeResults(ConnectableObservable<Integer> intsObservable);
     }
 }

From 1e51d4337b4dc8ac2578243f1356789b5116ee51 Mon Sep 17 00:00:00 2001
From: Fabio Collini <fabio.collini@gmail.com>
Date: Tue, 14 Jul 2015 22:09:38 +0200
Subject: [PATCH 107/260] Fix for resume after background

---
 .../android/rxjava/RotationPersistWorkerFragment.java         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
index bca944ee..1afee4eb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
@@ -76,8 +76,8 @@ public Integer call(Long aLong) {
      * The Worker fragment has started doing it's thing
      */
     @Override
-    public void onStart() {
-        super.onStart();
+    public void onResume() {
+        super.onResume();
         _masterFrag.observeResults(storedIntsObservable);
     }
 

From 29475834e768e3a5d89008448984f4efbcd32f03 Mon Sep 17 00:00:00 2001
From: Fabio Collini <fabio.collini@gmail.com>
Date: Tue, 14 Jul 2015 22:24:39 +0200
Subject: [PATCH 108/260] Cancel Observable subscription when the Activity is
 "really" destroyed

---
 .../android/rxjava/RotationPersistFragment.java          | 1 -
 .../android/rxjava/RotationPersistWorkerFragment.java    | 9 +++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
index ecc92196..f4036ec1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
@@ -108,7 +108,6 @@ public void onNext(Integer integer) {
                   }
               }));
 
-        intsObservable.connect();
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
index 1afee4eb..828868f1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
@@ -6,6 +6,7 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
+import rx.Subscription;
 import rx.functions.Func1;
 import rx.observables.ConnectableObservable;
 
@@ -14,6 +15,7 @@ public class RotationPersistWorkerFragment
 
     private ConnectableObservable<Integer> storedIntsObservable;
     private IAmYourMaster _masterFrag;
+    private Subscription storedIntsSubscription;
 
     /**
      * Hold a reference to the activity -> caller fragment
@@ -66,6 +68,8 @@ public Integer call(Long aLong) {
         //_intsObservable = _intsObservable.share();
         storedIntsObservable = intsObservable.replay();
 
+        storedIntsSubscription = storedIntsObservable.connect();
+
         // Do not do this in production!
         // `.share` is "warm" not "hot"
         // the below forceful subscription fakes the heat
@@ -91,6 +95,11 @@ public void onDetach() {
         _masterFrag = null;
     }
 
+    @Override public void onDestroy() {
+        super.onDestroy();
+        storedIntsSubscription.unsubscribe();
+    }
+
     public interface IAmYourMaster {
         void observeResults(ConnectableObservable<Integer> intsObservable);
     }

From d7f4b0d763a835bce7176a67f8152f5cb6efd4f6 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 14 Jul 2015 22:23:17 -0700
Subject: [PATCH 109/260] fix: rename copy paster error

---
 .../com/morihacky/android/rxjava/RotationPersistFragment.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
index f4036ec1..435c47f8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
@@ -65,7 +65,7 @@ public void onPause() {
     // -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_rotate_persist)
-    public void startRetryingWithExponentialBackoffStrategy() {
+    public void startOperationFromWorkerFrag() {
         _logs = new ArrayList<>();
         _adapter.clear();
 

From 0c9aa402054e8649639ecce87073cea74dbe220f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 14 Jul 2015 22:24:25 -0700
Subject: [PATCH 110/260] fix: memory leak caused by not destroying worker frag

---
 .../com/morihacky/android/rxjava/MainActivity.java  | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index a0c77692..4d03411a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -1,6 +1,7 @@
 package com.morihacky.android.rxjava;
 
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
@@ -18,6 +19,18 @@ public RxBus getRxBusSingleton() {
         return _rxBus;
     }
 
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+
+        Fragment frag = getSupportFragmentManager()//
+              .findFragmentByTag(RotationPersistWorkerFragment.class.getName());
+
+        if (frag != null) {
+            getSupportFragmentManager().beginTransaction().remove(frag).commit();
+        }
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

From 3061deaa758c5fe68d4877db475fede9deedab26 Mon Sep 17 00:00:00 2001
From: DmitriyZaitsev <zaitsev.dl@gmail.com>
Date: Sat, 8 Aug 2015 01:31:07 +0300
Subject: [PATCH 111/260] Update MainFragment.java

refactor(MainFragment) remove code duplication; send code execution through a single entry point;
---
 .../android/rxjava/MainFragment.java          | 144 +++++-------------
 1 file changed, 34 insertions(+), 110 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
index 4239bbad..4a62274e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
@@ -1,7 +1,9 @@
 package com.morihacky.android.rxjava;
 
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -9,154 +11,76 @@
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
-public class MainFragment
-      extends BaseFragment {
+public class MainFragment extends BaseFragment {
 
     @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_main, container, false);
         ButterKnife.inject(this, layout);
         return layout;
     }
 
     @OnClick(R.id.btn_demo_schedulers)
-    public void demoConcurrencyWithSchedulers() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(ConcurrencyWithSchedulersDemoFragment.class.getName())
-              .replace(android.R.id.content,
-                    new ConcurrencyWithSchedulersDemoFragment(),
-                    ConcurrencyWithSchedulersDemoFragment.class.getName())
-              .commit();
+    void demoConcurrencyWithSchedulers() {
+        clickedOn(new ConcurrencyWithSchedulersDemoFragment());
     }
 
     @OnClick(R.id.btn_demo_buffer)
-    public void demoBuffer() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(BufferDemoFragment.class.toString())
-              .replace(android.R.id.content,
-                    new BufferDemoFragment(),
-                    BufferDemoFragment.class.toString())
-              .commit();
+    void demoBuffer() {
+        clickedOn(new BufferDemoFragment());
     }
 
     @OnClick(R.id.btn_demo_debounce)
-    public void demoThrottling() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(DebounceSearchEmitterFragment.class.toString())
-              .replace(android.R.id.content,
-                    new DebounceSearchEmitterFragment(),
-                    DebounceSearchEmitterFragment.class.toString())
-              .commit();
+    void demoThrottling() {
+        clickedOn(new DebounceSearchEmitterFragment());
     }
 
     @OnClick(R.id.btn_demo_retrofit)
-    public void demoRetrofitCalls() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction().addToBackStack(RetrofitFragment.class.toString())
-              //.replace(android.R.id.content, new RetrofitAsyncTaskDeathFragment(), RetrofitAsyncTaskDeathFragment.class.toString())
-              .replace(android.R.id.content,
-                    new RetrofitFragment(),
-                    RetrofitFragment.class.toString()).commit();
+    void demoRetrofitCalls() {
+        clickedOn(new RetrofitFragment());
     }
 
     @OnClick(R.id.btn_demo_double_binding_textview)
-    public void demoDoubleBindingWithPublishSubject() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(DoubleBindingTextViewFragment.class.toString())
-              .replace(android.R.id.content,
-                    new DoubleBindingTextViewFragment(),
-                    DoubleBindingTextViewFragment.class.toString())
-              .commit();
+    void demoDoubleBindingWithPublishSubject() {
+        clickedOn(new DoubleBindingTextViewFragment());
     }
 
-    /*@OnClick(R.id.btn_demo_polling)
-    public void demoPolling() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(PollingFragment.class.toString())
-              .replace(android.R.id.content, new PollingFragment(), PollingFragment.class.toString())
-              .commit();
-    }*/
-
     @OnClick(R.id.btn_demo_rxbus)
-    public void demoRxBus() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(RxBusDemoFragment.class.toString())
-              .replace(android.R.id.content,
-                    new RxBusDemoFragment(),
-                    RxBusDemoFragment.class.toString())
-              .commit();
-    }
-
-    //@OnClick(R.id.btn_demo_subject_timeout)
-    public void demoTimeout() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(TimeoutDemoFragment.class.toString())
-              .replace(android.R.id.content,
-                    new TimeoutDemoFragment(),
-                    TimeoutDemoFragment.class.toString())
-              .commit();
+    void demoRxBus() {
+        clickedOn(new RxBusDemoFragment());
     }
 
     @OnClick(R.id.btn_demo_form_validation_combinel)
-    public void formValidation() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(FormValidationCombineLatestFragment.class.toString())
-              .replace(android.R.id.content,
-                    new FormValidationCombineLatestFragment(),
-                    FormValidationCombineLatestFragment.class.toString())
-              .commit();
+    void formValidation() {
+        clickedOn(new FormValidationCombineLatestFragment());
     }
 
     @OnClick(R.id.btn_demo_pseudo_cache)
-    public void pseudoCacheDemo() {
-        getActivity().getSupportFragmentManager().beginTransaction().addToBackStack(
-              PseudoCacheMergeFragment.class.toString())
-              //.replace(android.R.id.content, new PseudoCacheConcatFragment(), PseudoCacheConcatFragment.class.toString())
-              .replace(android.R.id.content,
-                    new PseudoCacheMergeFragment(),
-                    PseudoCacheMergeFragment.class.toString()).commit();
+    void pseudoCacheDemo() {
+        clickedOn(new PseudoCacheMergeFragment());
     }
 
     @OnClick(R.id.btn_demo_timing)
-    public void demoTimerIntervalDelays() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(TimingDemoFragment.class.toString())
-              .replace(android.R.id.content,
-                    new TimingDemoFragment(),
-                    TimingDemoFragment.class.toString())
-              .commit();
+    void demoTimerIntervalDelays() {
+        clickedOn(new TimingDemoFragment());
     }
 
     @OnClick(R.id.btn_demo_exponential_backoff)
-    public void demoExponentialBackoff() {
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(ExponentialBackoffFragment.class.toString())
-              .replace(android.R.id.content,
-                    new ExponentialBackoffFragment(),
-                    ExponentialBackoffFragment.class.toString())
-              .commit();
+    void demoExponentialBackoff() {
+        clickedOn(new ExponentialBackoffFragment());
     }
 
     @OnClick(R.id.btn_demo_rotation_persist)
-    public void demoRotationPersist() {
+    void demoRotationPersist() {
+        clickedOn(new RotationPersistFragment());
+    }
+
+    private void clickedOn(@NonNull Fragment fragment) {
+        final String tag = fragment.getClass().toString();
         getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(RotationPersistFragment.class.toString())
-              .replace(android.R.id.content,
-                    new RotationPersistFragment(),
-                    RotationPersistFragment.class.toString())
-              .commit();
+            .beginTransaction()
+            .addToBackStack(tag)
+            .replace(android.R.id.content, fragment, tag)
+            .commit();
     }
 }

From b10368024b06318dff8f90345362ea94986f4854 Mon Sep 17 00:00:00 2001
From: Dmitriy Zaitsev <zaitsev.dl@gmail.com>
Date: Sat, 8 Aug 2015 02:09:04 +0300
Subject: [PATCH 112/260] refactor(fragments) gather all fragments in one
 package;

---
 .../main/java/com/morihacky/android/rxjava/MainActivity.java | 2 ++
 .../android/rxjava/{ => fragments}/BaseFragment.java         | 3 ++-
 .../android/rxjava/{ => fragments}/BufferDemoFragment.java   | 3 ++-
 .../ConcurrencyWithSchedulersDemoFragment.java               | 4 +++-
 .../{ => fragments}/DebounceSearchEmitterFragment.java       | 5 +++--
 .../{ => fragments}/DoubleBindingTextViewFragment.java       | 2 +-
 .../rxjava/{ => fragments}/ExponentialBackoffFragment.java   | 4 +++-
 .../{ => fragments}/FormValidationCombineLatestFragment.java | 2 +-
 .../android/rxjava/{ => fragments}/MainFragment.java         | 3 ++-
 .../android/rxjava/{ => fragments}/PollingFragment.java      | 2 +-
 .../rxjava/{ => fragments}/PseudoCacheConcatFragment.java    | 2 +-
 .../rxjava/{ => fragments}/PseudoCacheMergeFragment.java     | 3 ++-
 .../{ => fragments}/RetrofitAsyncTaskDeathFragment.java      | 3 ++-
 .../android/rxjava/{ => fragments}/RetrofitFragment.java     | 4 +++-
 .../rxjava/{ => fragments}/RotationPersistFragment.java      | 4 +++-
 .../{ => fragments}/RotationPersistWorkerFragment.java       | 4 +++-
 .../android/rxjava/{ => fragments}/TimeoutDemoFragment.java  | 3 ++-
 .../android/rxjava/{ => fragments}/TimingDemoFragment.java   | 3 ++-
 .../morihacky/android/rxjava/rxbus/RxBusDemoFragment.java    | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java      | 3 +--
 .../android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java      | 3 +--
 .../android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java      | 3 +--
 .../android/rxjava/rxbus/RxBusDemo_TopFragment.java          | 2 +-
 23 files changed, 43 insertions(+), 26 deletions(-)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/BaseFragment.java (76%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/BufferDemoFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/ConcurrencyWithSchedulersDemoFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/DebounceSearchEmitterFragment.java (97%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/DoubleBindingTextViewFragment.java (97%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/ExponentialBackoffFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/FormValidationCombineLatestFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/MainFragment.java (96%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/PollingFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/PseudoCacheConcatFragment.java (99%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/PseudoCacheMergeFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/RetrofitAsyncTaskDeathFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/RetrofitFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/RotationPersistFragment.java (96%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/RotationPersistWorkerFragment.java (96%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/TimeoutDemoFragment.java (98%)
 rename app/src/main/java/com/morihacky/android/rxjava/{ => fragments}/TimingDemoFragment.java (98%)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 4d03411a..4da21a0e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -3,6 +3,8 @@
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
+import com.morihacky.android.rxjava.fragments.MainFragment;
+import com.morihacky.android.rxjava.fragments.RotationPersistWorkerFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
 public class MainActivity
diff --git a/app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java
similarity index 76%
rename from app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java
index 3d260adc..429f8ba0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BaseFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java
@@ -1,6 +1,7 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.support.v4.app.Fragment;
+import com.morihacky.android.rxjava.MyApp;
 import com.squareup.leakcanary.RefWatcher;
 
 public class BaseFragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index e0ee6152..a5d21af2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.os.Handler;
@@ -11,6 +11,7 @@
 import android.widget.ListView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index 83f0f0ca..1ed1771d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.content.Context;
 import android.os.Bundle;
@@ -16,6 +16,8 @@
 import butterknife.OnClick;
 import java.util.ArrayList;
 import java.util.List;
+
+import com.morihacky.android.rxjava.R;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
similarity index 97%
rename from app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 3c3c857d..744c7e5e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.content.Context;
 import android.os.Bundle;
@@ -17,6 +17,8 @@
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import com.morihacky.android.rxjava.R;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
@@ -26,7 +28,6 @@
 import timber.log.Timber;
 
 import static java.lang.String.format;
-import static rx.android.app.AppObservable.bindFragment;
 import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class DebounceSearchEmitterFragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
similarity index 97%
rename from app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index 7a7ce56e..f0027bdd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index 6d254623..df860315 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.os.Handler;
@@ -10,6 +10,8 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 93bc7183..426adc6a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
similarity index 96%
rename from app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 4a62274e..2b8d27fb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.NonNull;
@@ -9,6 +9,7 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
 public class MainFragment extends BaseFragment {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 6f163e26..fc52780a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.content.Context;
 import android.os.Bundle;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
similarity index 99%
rename from app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index 623d9cdd..56777a52 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index f2165950..248e61c5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -11,6 +11,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import java.util.ArrayList;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index a883cbe2..25a01229 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.AsyncTask;
 import android.os.Bundle;
@@ -13,6 +13,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
 import java.util.ArrayList;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 10bc0e05..ae3ea1eb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
@@ -13,6 +13,8 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistFragment.java
similarity index 96%
rename from app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistFragment.java
index 435c47f8..55175a44 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.os.Handler;
@@ -11,6 +11,8 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
similarity index 96%
rename from app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
index 828868f1..9e8f6b46 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
@@ -1,10 +1,12 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import com.morihacky.android.rxjava.MainActivity;
 import rx.Observable;
 import rx.Subscription;
 import rx.functions.Func1;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index 9a517d5e..057dd8dc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.os.Handler;
@@ -11,6 +11,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
similarity index 98%
rename from app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 791684b0..68d3b16c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava;
+package com.morihacky.android.rxjava.fragments;
 
 import android.os.Bundle;
 import android.os.Handler;
@@ -10,6 +10,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index 058fc66a..66052e0a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -6,7 +6,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
-import com.morihacky.android.rxjava.BaseFragment;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.R;
 
 public class RxBusDemoFragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 6aa39583..8c2907a3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -9,13 +9,12 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.BaseFragment;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.app.AppObservable.bindFragment;
 import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class RxBusDemo_Bottom1Fragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 7f5cabcf..3ec7560b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -9,7 +9,7 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.BaseFragment;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import java.util.List;
@@ -19,7 +19,6 @@
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.app.AppObservable.bindFragment;
 import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class RxBusDemo_Bottom2Fragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index a1fa81fc..69170872 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -9,7 +9,7 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.BaseFragment;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import java.util.List;
@@ -21,7 +21,6 @@
 import rx.observables.ConnectableObservable;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.app.AppObservable.bindFragment;
 import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class RxBusDemo_Bottom3Fragment
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index 8686a161..3754ed0c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -7,7 +7,7 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.BaseFragment;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 

From 019527c1878c64dc7e5955bcd78372ed8094260c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 2 Sep 2015 18:55:27 -0700
Subject: [PATCH 113/260] chore: bump up gradle and andoroid plugin versions

---
 build.gradle                             | 2 +-
 gradle/wrapper/gradle-wrapper.properties | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/build.gradle b/build.gradle
index b24a4434..8d6e1303 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.0.0'
+        classpath 'com.android.tools.build:gradle:1.3.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 985d63d6..4bc23594 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Dec 24 12:27:06 PST 2014
+#Wed Sep 02 11:33:19 PDT 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip

From 03e880044c9ef741cbe76ea48b288534c9966244 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 2 Sep 2015 19:05:39 -0700
Subject: [PATCH 114/260] refactor: remove Guava dependency and reaplce Strings
 util check with native android #22

---
 app/build.gradle                                 |  8 +++-----
 .../rxjava/DoubleBindingTextViewFragment.java    |  9 +++++----
 .../FormValidationCombineLatestFragment.java     | 11 ++++++-----
 .../rxjava/PseudoCacheConcatFragment.java        | 14 ++++++++------
 .../android/rxjava/PseudoCacheMergeFragment.java | 13 ++++++++-----
 .../rxjava/RetrofitAsyncTaskDeathFragment.java   | 16 +++++++++-------
 .../android/rxjava/RetrofitFragment.java         | 15 +++++++++------
 7 files changed, 48 insertions(+), 38 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index af1c76a2..1b9eb001 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,8 +3,6 @@ apply plugin: 'com.android.application'
 dependencies {
     compile  'com.android.support:support-v13:21.0.2'
 
-    compile 'com.google.guava:guava:17.+'
-
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile 'io.reactivex:rxandroid:0.25.0'
@@ -19,13 +17,13 @@ dependencies {
 }
 
 android {
-    compileSdkVersion 21
-    buildToolsVersion '21.1.2'
+    compileSdkVersion 23
+    buildToolsVersion '23'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
         minSdkVersion 14
-        targetSdkVersion 21
+        targetSdkVersion 22
         versionCode 1
         versionName "1.0"
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
index 7a7ce56e..8e3caac8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DoubleBindingTextViewFragment.java
@@ -7,15 +7,16 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
+
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnTextChanged;
-import com.google.common.base.Strings;
-import com.morihacky.android.rxjava.R;
 import rx.Subscription;
 import rx.functions.Action1;
 import rx.subjects.PublishSubject;
 
+import static android.text.TextUtils.isEmpty;
+
 public class DoubleBindingTextViewFragment
       extends BaseFragment {
 
@@ -52,11 +53,11 @@ public void onNumberChanged() {
         float num1 = 0;
         float num2 = 0;
 
-        if (!Strings.isNullOrEmpty(_number1.getText().toString())) {
+        if (!isEmpty(_number1.getText().toString())) {
             num1 = Float.parseFloat(_number1.getText().toString());
         }
 
-        if (!Strings.isNullOrEmpty(_number2.getText().toString())) {
+        if (!isEmpty(_number2.getText().toString())) {
             num2 = Float.parseFloat(_number2.getText().toString());
         }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
index 93bc7183..2bb02b12 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -7,9 +7,9 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
+
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.R;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
@@ -18,8 +18,9 @@
 import rx.functions.Func3;
 import timber.log.Timber;
 
+import static android.text.TextUtils.isEmpty;
 import static android.util.Patterns.EMAIL_ADDRESS;
-import static com.google.common.base.Strings.isNullOrEmpty;
+
 
 public class FormValidationCombineLatestFragment
       extends BaseFragment {
@@ -71,20 +72,20 @@ public Boolean call(OnTextChangeEvent onEmailChangeEvent,
                                       OnTextChangeEvent onPasswordChangeEvent,
                                       OnTextChangeEvent onNumberChangeEvent) {
 
-                      boolean emailValid = !isNullOrEmpty(onEmailChangeEvent.text().toString()) &&
+                      boolean emailValid = !isEmpty(onEmailChangeEvent.text().toString()) &&
                                            EMAIL_ADDRESS.matcher(onEmailChangeEvent.text())
                                                  .matches();
                       if (!emailValid) {
                           _email.setError("Invalid Email!");
                       }
 
-                      boolean passValid = !isNullOrEmpty(onPasswordChangeEvent.text().toString()) &&
+                      boolean passValid = !isEmpty(onPasswordChangeEvent.text().toString()) &&
                                           onPasswordChangeEvent.text().length() > 8;
                       if (!passValid) {
                           _password.setError("Invalid Password!");
                       }
 
-                      boolean numValid = !isNullOrEmpty(onNumberChangeEvent.text().toString());
+                      boolean numValid = !isEmpty(onNumberChangeEvent.text().toString());
                       if (numValid) {
                           int num = Integer.parseInt(onNumberChangeEvent.text().toString());
                           numValid = num > 0 && num <= 100;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
index 623d9cdd..ea1207d1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheConcatFragment.java
@@ -2,20 +2,23 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
+
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
@@ -25,7 +28,6 @@
 import rx.functions.Func1;
 import timber.log.Timber;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.lang.String.format;
 
 public class PseudoCacheConcatFragment
@@ -129,7 +131,7 @@ private GithubApi _createGithubApi() {
         //.setLogLevel(RestAdapter.LogLevel.FULL);
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isNullOrEmpty(githubToken)) {
+        if (!TextUtils.isEmpty(githubToken)) {
             builder.setRequestInterceptor(new RequestInterceptor() {
                 @Override
                 public void intercept(RequestFacade request) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
index f2165950..58d7e09c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/PseudoCacheMergeFragment.java
@@ -8,14 +8,17 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
@@ -25,7 +28,7 @@
 import rx.functions.Func1;
 import timber.log.Timber;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
+import static android.text.TextUtils.isEmpty;
 import static java.lang.String.format;
 
 public class PseudoCacheMergeFragment
@@ -149,7 +152,7 @@ private GithubApi _createGithubApi() {
         //.setLogLevel(RestAdapter.LogLevel.FULL);
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isNullOrEmpty(githubToken)) {
+        if (!isEmpty(githubToken)) {
             builder.setRequestInterceptor(new RequestInterceptor() {
                 @Override
                 public void intercept(RequestFacade request) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
index a883cbe2..36030cd3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitAsyncTaskDeathFragment.java
@@ -4,27 +4,29 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
+
 import java.util.ArrayList;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
-import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
 import rx.schedulers.Schedulers;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
+import static android.text.TextUtils.isEmpty;
 import static java.lang.String.format;
 
 public class RetrofitAsyncTaskDeathFragment
@@ -109,7 +111,7 @@ private GithubApi _createGithubApi() {
         //.setLogLevel(RestAdapter.LogLevel.FULL);
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isNullOrEmpty(githubToken)) {
+        if (!isEmpty(githubToken)) {
             builder.setRequestInterceptor(new RequestInterceptor() {
                 @Override
                 public void intercept(RequestFacade request) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
index 10bc0e05..c40c2430 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RetrofitFragment.java
@@ -10,14 +10,17 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
+
 import java.util.ArrayList;
 import java.util.List;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
@@ -29,7 +32,7 @@
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
+import static android.text.TextUtils.isEmpty;
 import static java.lang.String.format;
 
 public class RetrofitFragment
@@ -136,7 +139,7 @@ public Observable<Pair<User, Contributor>> call(Contributor contributor) {
                             .filter(new Func1<User, Boolean>() {
                                 @Override
                                 public Boolean call(User user) {
-                                    return !isNullOrEmpty(user.name) && !isNullOrEmpty(user.email);
+                                    return !isEmpty(user.name) && !isEmpty(user.email);
                                 }
                             });
 
@@ -196,7 +199,7 @@ private GithubApi _createGithubApi() {
         //.setLogLevel(RestAdapter.LogLevel.FULL);
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isNullOrEmpty(githubToken)) {
+        if (!isEmpty(githubToken)) {
             builder.setRequestInterceptor(new RequestInterceptor() {
                 @Override
                 public void intercept(RequestFacade request) {

From 3d224e7279b0e36432112090cfc9a6856b44c1e0 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 2 Sep 2015 19:31:56 -0700
Subject: [PATCH 115/260] fix: bump up rxandroid to 1.0.1 and pull in
 RxBindings fixes #21

---
 app/build.gradle                              | 10 +++--
 .../android/rxjava/BufferDemoFragment.java    | 27 +++++++-------
 ...ConcurrencyWithSchedulersDemoFragment.java |  3 +-
 .../rxjava/DebounceSearchEmitterFragment.java | 22 ++++-------
 .../FormValidationCombineLatestFragment.java  | 37 ++++++++-----------
 .../android/rxjava/TimeoutDemoFragment.java   | 10 ++---
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  5 +--
 .../rxbus/RxBusDemo_Bottom2Fragment.java      | 20 ++++------
 .../rxbus/RxBusDemo_Bottom3Fragment.java      | 20 ++++------
 9 files changed, 65 insertions(+), 89 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 1b9eb001..8fedb1bc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,11 +3,15 @@ apply plugin: 'com.android.application'
 dependencies {
     compile  'com.android.support:support-v13:21.0.2'
 
+    compile 'io.reactivex:rxandroid:1.0.1'
+    // Because RxAndroid releases are few and far between, it is recommended you also
+    // explicitly depend on RxJava's latest version for bug fixes and new features.
+    compile 'io.reactivex:rxjava:1.0.14'
+    compile 'io.reactivex:rxjava-math:1.0.0'
+    compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
+
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'io.reactivex:rxandroid:0.25.0'
-    compile 'io.reactivex:rxjava-math:0.21.0'
-
     compile 'com.squareup.retrofit:retrofit:1.6.1'
     compile 'com.squareup.okhttp:okhttp:2.0.0'
     compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
index e0ee6152..d544f980 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/BufferDemoFragment.java
@@ -9,17 +9,20 @@
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
+
+import com.jakewharton.rxbinding.view.RxView;
+import com.jakewharton.rxbinding.view.ViewClickEvent;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.ButterKnife;
+import butterknife.InjectView;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.android.view.OnClickEvent;
-import rx.android.view.ViewObservable;
 import rx.functions.Func1;
 import timber.log.Timber;
 
@@ -79,10 +82,9 @@ public View onCreateView(LayoutInflater inflater,
     // Main Rx entities
 
     private Subscription _getBufferedSubscription() {
-        return ViewObservable.clicks(_tapBtn)
-              .map(new Func1<OnClickEvent, Integer>() {
-                  @Override
-                  public Integer call(OnClickEvent onClickEvent) {
+        return RxView.clickEvents(_tapBtn)
+              .map(new Func1<ViewClickEvent, Integer>() {
+                  @Override public Integer call(ViewClickEvent onClickEvent) {
                       Timber.d("--------- GOT A TAP");
                       _log("GOT A TAP");
                       return 1;
@@ -92,20 +94,17 @@ public Integer call(OnClickEvent onClickEvent) {
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Observer<List<Integer>>() {
 
-                  @Override
-                  public void onCompleted() {
+                  @Override public void onCompleted() {
                       // fyi: you'll never reach here
                       Timber.d("----- onCompleted");
                   }
 
-                  @Override
-                  public void onError(Throwable e) {
+                  @Override public void onError(Throwable e) {
                       Timber.e(e, "--------- Woops on error!");
                       _log("Dang error! check your logs");
                   }
 
-                  @Override
-                  public void onNext(List<Integer> integers) {
+                  @Override public void onNext(List<Integer> integers) {
                       Timber.d("--------- onNext");
                       if (integers.size() > 0) {
                           _log(String.format("%d taps", integers.size()));
diff --git a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
index 83f0f0ca..2dd1304a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/ConcurrencyWithSchedulersDemoFragment.java
@@ -19,7 +19,6 @@
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
-import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Func1;
 import rx.schedulers.Schedulers;
@@ -64,7 +63,7 @@ public void startLongOperation() {
         _progress.setVisibility(View.VISIBLE);
         _log("Button Clicked");
 
-        _subscription = AppObservable.bindSupportFragment(this, _getObservable())      // Observable
+        _subscription = _getObservable()//
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_getObserver());                             // Observer
diff --git a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
index 3c3c857d..0e6d9dec 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/DebounceSearchEmitterFragment.java
@@ -14,20 +14,17 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.jakewharton.rxbinding.widget.RxTextView;
+import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.android.widget.OnTextChangeEvent;
-import rx.android.widget.WidgetObservable;
 import timber.log.Timber;
 
 import static java.lang.String.format;
-import static rx.android.app.AppObservable.bindFragment;
-import static rx.android.app.AppObservable.bindSupportFragment;
 
 public class DebounceSearchEmitterFragment
       extends BaseFragment {
@@ -69,20 +66,17 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         _setupLogger();
 
-        Observable<OnTextChangeEvent> textChangeObservable = WidgetObservable.text(_inputSearchText);
-
-        _subscription = bindSupportFragment(this,//
-              textChangeObservable//
-                    .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
-                    .observeOn(AndroidSchedulers.mainThread()))//
+        _subscription = RxTextView.textChangeEvents(_inputSearchText)//
+              .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
+              .observeOn(AndroidSchedulers.mainThread())//
               .subscribe(_getSearchObserver());
     }
 
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
-    private Observer<OnTextChangeEvent> _getSearchObserver() {
-        return new Observer<OnTextChangeEvent>() {
+    private Observer<TextViewTextChangeEvent> _getSearchObserver() {
+        return new Observer<TextViewTextChangeEvent>() {
             @Override
             public void onCompleted() {
                 Timber.d("--------- onComplete");
@@ -95,7 +89,7 @@ public void onError(Throwable e) {
             }
 
             @Override
-            public void onNext(OnTextChangeEvent onTextChangeEvent) {
+            public void onNext(TextViewTextChangeEvent onTextChangeEvent) {
                 _log(format("Searching for %s", onTextChangeEvent.text().toString()));
             }
         };
diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
index 2bb02b12..16360bc0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -7,21 +7,18 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-
 import butterknife.ButterKnife;
 import butterknife.InjectView;
+import com.jakewharton.rxbinding.widget.RxTextView;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
-import rx.android.widget.OnTextChangeEvent;
-import rx.android.widget.WidgetObservable;
 import rx.functions.Func3;
 import timber.log.Timber;
 
 import static android.text.TextUtils.isEmpty;
 import static android.util.Patterns.EMAIL_ADDRESS;
 
-
 public class FormValidationCombineLatestFragment
       extends BaseFragment {
 
@@ -30,9 +27,9 @@ public class FormValidationCombineLatestFragment
     @InjectView(R.id.demo_combl_password) EditText _password;
     @InjectView(R.id.demo_combl_num) EditText _number;
 
-    private Observable<OnTextChangeEvent> _emailChangeObservable;
-    private Observable<OnTextChangeEvent> _passwordChangeObservable;
-    private Observable<OnTextChangeEvent> _numberChangeObservable;
+    private Observable<CharSequence> _emailChangeObservable;
+    private Observable<CharSequence> _passwordChangeObservable;
+    private Observable<CharSequence> _numberChangeObservable;
 
     private Subscription _subscription = null;
 
@@ -45,9 +42,9 @@ public View onCreateView(LayoutInflater inflater,
               false);
         ButterKnife.inject(this, layout);
 
-        _emailChangeObservable = WidgetObservable.text(_email);
-        _passwordChangeObservable = WidgetObservable.text(_password);
-        _numberChangeObservable = WidgetObservable.text(_number);
+        _emailChangeObservable = RxTextView.textChanges(_email);
+        _passwordChangeObservable = RxTextView.textChanges(_password);
+        _numberChangeObservable = RxTextView.textChanges(_number);
 
         _combineLatestEvents();
 
@@ -66,28 +63,26 @@ private void _combineLatestEvents() {
         _subscription = Observable.combineLatest(_emailChangeObservable,
               _passwordChangeObservable,
               _numberChangeObservable,
-              new Func3<OnTextChangeEvent, OnTextChangeEvent, OnTextChangeEvent, Boolean>() {
+              new Func3<CharSequence, CharSequence, CharSequence, Boolean>() {
                   @Override
-                  public Boolean call(OnTextChangeEvent onEmailChangeEvent,
-                                      OnTextChangeEvent onPasswordChangeEvent,
-                                      OnTextChangeEvent onNumberChangeEvent) {
+                  public Boolean call(CharSequence newEmail,
+                                      CharSequence newPassword,
+                                      CharSequence newNumber) {
 
-                      boolean emailValid = !isEmpty(onEmailChangeEvent.text().toString()) &&
-                                           EMAIL_ADDRESS.matcher(onEmailChangeEvent.text())
-                                                 .matches();
+                      boolean emailValid = !isEmpty(newEmail) &&
+                                           EMAIL_ADDRESS.matcher(newEmail).matches();
                       if (!emailValid) {
                           _email.setError("Invalid Email!");
                       }
 
-                      boolean passValid = !isEmpty(onPasswordChangeEvent.text().toString()) &&
-                                          onPasswordChangeEvent.text().length() > 8;
+                      boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
                       if (!passValid) {
                           _password.setError("Invalid Password!");
                       }
 
-                      boolean numValid = !isEmpty(onNumberChangeEvent.text().toString());
+                      boolean numValid = !isEmpty(newNumber);
                       if (numValid) {
-                          int num = Integer.parseInt(onNumberChangeEvent.text().toString());
+                          int num = Integer.parseInt(newNumber.toString());
                           numValid = num > 0 && num <= 100;
                       }
                       if (!numValid) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
index 9a517d5e..4267fb01 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/TimeoutDemoFragment.java
@@ -19,7 +19,6 @@
 import rx.Observer;
 import rx.Subscriber;
 import rx.Subscription;
-import rx.android.app.AppObservable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
@@ -57,16 +56,14 @@ public View onCreateView(LayoutInflater inflater,
 
     @OnClick(R.id.btn_demo_timeout_1_2s)
     public void onStart2sTask() {
-        _subscription = AppObservable.bindSupportFragment(TimeoutDemoFragment.this,
-              _getObservableTask_2sToComplete())
-              .observeOn(AndroidSchedulers.mainThread())
+        _subscription = _getObservableTask_2sToComplete()//
+              .observeOn(AndroidSchedulers.mainThread())//
               .subscribe(_getEventCompletionObserver());
     }
 
     @OnClick(R.id.btn_demo_timeout_1_5s)
     public void onStart5sTask() {
-        _subscription = AppObservable.bindSupportFragment(TimeoutDemoFragment.this,
-              _getObservableFor5sTask())
+        _subscription = _getObservableFor5sTask()//
               .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
               .subscribeOn(Schedulers.computation())
               .observeOn(AndroidSchedulers.mainThread())
@@ -176,5 +173,4 @@ public void run() {
     private boolean _isCurrentlyOnMainThread() {
         return Looper.myLooper() == Looper.getMainLooper();
     }
-
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 6aa39583..7e5dede0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -15,9 +15,6 @@
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.app.AppObservable.bindFragment;
-import static rx.android.app.AppObservable.bindSupportFragment;
-
 public class RxBusDemo_Bottom1Fragment
       extends BaseFragment {
 
@@ -46,7 +43,7 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         _subscriptions//
-              .add(bindSupportFragment(this, _rxBus.toObserverable())//
+              .add(_rxBus.toObserverable()//
                     .subscribe(new Action1<Object>() {
                         @Override
                         public void call(Object event) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 7f5cabcf..7ff3edbe 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -19,9 +19,6 @@
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.app.AppObservable.bindFragment;
-import static rx.android.app.AppObservable.bindSupportFragment;
-
 public class RxBusDemo_Bottom2Fragment
       extends BaseFragment {
 
@@ -53,15 +50,14 @@ public void onStart() {
         Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
 
         _subscriptions//
-              .add(bindSupportFragment(this, tapEventEmitter)//
-                    .subscribe(new Action1<Object>() {
-                        @Override
-                        public void call(Object event) {
-                            if (event instanceof RxBusDemoFragment.TapEvent) {
-                                _showTapText();
-                            }
-                        }
-                    }));
+              .add(tapEventEmitter.subscribe(new Action1<Object>() {
+                  @Override
+                  public void call(Object event) {
+                      if (event instanceof RxBusDemoFragment.TapEvent) {
+                          _showTapText();
+                      }
+                  }
+              }));
 
         Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
         Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index a1fa81fc..e7ff15b9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -21,9 +21,6 @@
 import rx.observables.ConnectableObservable;
 import rx.subscriptions.CompositeSubscription;
 
-import static rx.android.app.AppObservable.bindFragment;
-import static rx.android.app.AppObservable.bindSupportFragment;
-
 public class RxBusDemo_Bottom3Fragment
       extends BaseFragment {
 
@@ -55,15 +52,14 @@ public void onStart() {
         ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
 
         _subscriptions//
-              .add(bindSupportFragment(this, tapEventEmitter)//
-                    .subscribe(new Action1<Object>() {
-                        @Override
-                        public void call(Object event) {
-                            if (event instanceof RxBusDemoFragment.TapEvent) {
-                                _showTapText();
-                            }
-                        }
-                    }));
+              .add(tapEventEmitter.subscribe(new Action1<Object>() {
+                  @Override
+                  public void call(Object event) {
+                      if (event instanceof RxBusDemoFragment.TapEvent) {
+                          _showTapText();
+                      }
+                  }
+              }));
 
         _subscriptions//
               .add(tapEventEmitter.publish(new Func1<Observable<Object>, Observable<List<Object>>>() {

From 7c634bf43162ad4a038387f148510b63cc50e3d6 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 2 Sep 2015 23:21:25 -0700
Subject: [PATCH 116/260] fix: skip first item emitted, so it doesn't show all
 red until all inputs received

---
 .../android/rxjava/FormValidationCombineLatestFragment.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
index 16360bc0..970a4bc9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/FormValidationCombineLatestFragment.java
@@ -42,9 +42,9 @@ public View onCreateView(LayoutInflater inflater,
               false);
         ButterKnife.inject(this, layout);
 
-        _emailChangeObservable = RxTextView.textChanges(_email);
-        _passwordChangeObservable = RxTextView.textChanges(_password);
-        _numberChangeObservable = RxTextView.textChanges(_number);
+        _emailChangeObservable = RxTextView.textChanges(_email).skip(1);
+        _passwordChangeObservable = RxTextView.textChanges(_password).skip(1);
+        _numberChangeObservable = RxTextView.textChanges(_number).skip(1);
 
         _combineLatestEvents();
 

From 1f593cd01ad31e55f84fff712db2aee28e825962 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 2 Sep 2015 23:38:01 -0700
Subject: [PATCH 117/260] chore: mass reformat of code

---
 app/src/main/AndroidManifest.xml                  | 15 +++++++++------
 .../rxjava/fragments/BufferDemoFragment.java      | 12 +++++-------
 .../ConcurrencyWithSchedulersDemoFragment.java    |  3 +--
 .../fragments/DebounceSearchEmitterFragment.java  |  4 +---
 .../fragments/DoubleBindingTextViewFragment.java  |  1 -
 .../android/rxjava/fragments/MainFragment.java    | 15 +++++++++------
 .../fragments/PseudoCacheConcatFragment.java      |  9 +++------
 .../fragments/PseudoCacheMergeFragment.java       |  9 +++------
 .../fragments/RetrofitAsyncTaskDeathFragment.java | 10 +++-------
 .../rxjava/fragments/RetrofitFragment.java        |  9 +++------
 .../fragments/RotationPersistWorkerFragment.java  |  6 +++---
 .../android/rxjava/rxbus/RxBusDemoFragment.java   |  2 +-
 .../rxjava/rxbus/RxBusDemo_Bottom1Fragment.java   |  2 +-
 .../rxjava/rxbus/RxBusDemo_Bottom2Fragment.java   |  2 +-
 .../rxjava/rxbus/RxBusDemo_Bottom3Fragment.java   |  2 +-
 .../rxjava/rxbus/RxBusDemo_TopFragment.java       |  2 +-
 app/src/main/res/drawable/btn_round.xml           | 15 +++++++++------
 app/src/main/res/layout/fragment_debounce.xml     |  4 ++--
 app/src/main/res/layout/fragment_main.xml         |  1 +
 app/src/main/res/menu/demo.xml                    | 11 +++++++----
 app/src/main/res/values/styles.xml                |  3 ++-
 21 files changed, 66 insertions(+), 71 deletions(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index f8779a75..7466dc56 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,23 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.morihacky.android.rxjava" >
+          package="com.morihacky.android.rxjava"
+    >
 
     <application
         android:name=".MyApp"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/AppTheme"
+        >
         <activity
             android:name="com.morihacky.android.rxjava.MainActivity"
-            android:label="@string/app_name" >
+            android:label="@string/app_name"
+            >
             <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.MAIN"/>
 
-                <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
     </application>
-    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.INTERNET"/>
 
 </manifest>
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index bf99d53e..6a91aec5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -9,18 +9,15 @@
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
 import com.jakewharton.rxbinding.view.RxView;
 import com.jakewharton.rxbinding.view.ViewClickEvent;
-import com.morihacky.android.rxjava.wiring.LogAdapter;
 import com.morihacky.android.rxjava.R;
-
+import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
@@ -85,7 +82,8 @@ public View onCreateView(LayoutInflater inflater,
     private Subscription _getBufferedSubscription() {
         return RxView.clickEvents(_tapBtn)
               .map(new Func1<ViewClickEvent, Integer>() {
-                  @Override public Integer call(ViewClickEvent onClickEvent) {
+                  @Override
+                  public Integer call(ViewClickEvent onClickEvent) {
                       Timber.d("--------- GOT A TAP");
                       _log("GOT A TAP");
                       return 1;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index cbe2560c..292827ca 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -14,10 +14,9 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
-
-import com.morihacky.android.rxjava.R;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 24d047d1..139a654d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -16,12 +16,10 @@
 import butterknife.OnClick;
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
+import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import com.morihacky.android.rxjava.R;
-import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index f76e6cba..8c810049 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -7,7 +7,6 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnTextChanged;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 2b8d27fb..0ec6c01d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -12,10 +12,13 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
-public class MainFragment extends BaseFragment {
+public class MainFragment
+      extends BaseFragment {
 
     @Override
-    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_main, container, false);
         ButterKnife.inject(this, layout);
         return layout;
@@ -79,9 +82,9 @@ void demoRotationPersist() {
     private void clickedOn(@NonNull Fragment fragment) {
         final String tag = fragment.getClass().toString();
         getActivity().getSupportFragmentManager()
-            .beginTransaction()
-            .addToBackStack(tag)
-            .replace(android.R.id.content, fragment, tag)
-            .commit();
+              .beginTransaction()
+              .addToBackStack(tag)
+              .replace(android.R.id.content, fragment, tag)
+              .commit();
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index de14ef15..d3b4a405 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -8,17 +8,14 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
-
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 5f4da8a9..17c6a6d5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -8,18 +8,15 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
-
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 62dd5e47..5e6a48c1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -4,23 +4,19 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
-import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
-
 import java.util.ArrayList;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observer;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index cd8067fa..13e53c89 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -10,19 +10,16 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
-
 import java.util.ArrayList;
 import java.util.List;
-
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
 import retrofit.RequestInterceptor;
 import retrofit.RestAdapter;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
index 9e8f6b46..92126687 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
@@ -3,10 +3,9 @@
 import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
+import com.morihacky.android.rxjava.MainActivity;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import com.morihacky.android.rxjava.MainActivity;
 import rx.Observable;
 import rx.Subscription;
 import rx.functions.Func1;
@@ -97,7 +96,8 @@ public void onDetach() {
         _masterFrag = null;
     }
 
-    @Override public void onDestroy() {
+    @Override
+    public void onDestroy() {
         super.onDestroy();
         storedIntsSubscription.unsubscribe();
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index 66052e0a..ad1ad6ff 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -6,8 +6,8 @@
 import android.view.View;
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
-import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 
 public class RxBusDemoFragment
       extends BaseFragment {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index c49b3c51..7b7308fc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -9,9 +9,9 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 9b07e071..3098ecc3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -9,9 +9,9 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index d7ff7811..2f75f165 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -9,9 +9,9 @@
 import android.widget.TextView;
 import butterknife.ButterKnife;
 import butterknife.InjectView;
-import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import rx.Observable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index 3754ed0c..568244ca 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -7,9 +7,9 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 
 public class RxBusDemo_TopFragment
       extends BaseFragment {
diff --git a/app/src/main/res/drawable/btn_round.xml b/app/src/main/res/drawable/btn_round.xml
index ac7ba8f8..55ff6d2b 100644
--- a/app/src/main/res/drawable/btn_round.xml
+++ b/app/src/main/res/drawable/btn_round.xml
@@ -1,9 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android"
-       android:shape="rectangle">
-    <solid android:color="@color/red" />
-    <corners android:bottomRightRadius="100dp"
-             android:bottomLeftRadius="100dp"
-             android:topRightRadius="100dp"
-             android:topLeftRadius="100dp"/>
+       android:shape="rectangle"
+    >
+    <solid android:color="@color/red"/>
+    <corners
+        android:bottomRightRadius="100dp"
+        android:bottomLeftRadius="100dp"
+        android:topRightRadius="100dp"
+        android:topLeftRadius="100dp"
+        />
 </shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_debounce.xml b/app/src/main/res/layout/fragment_debounce.xml
index 2dc599c6..4fadbfbb 100644
--- a/app/src/main/res/layout/fragment_debounce.xml
+++ b/app/src/main/res/layout/fragment_debounce.xml
@@ -26,17 +26,17 @@
             android:layout_weight="7"
             android:layout_height="match_parent"
             android:layout_width="0dp"
-            android:inputType="textNoSuggestions"
             android:textSize="16sp"
             android:hint="Enter some search text"
+            android:inputType="textNoSuggestions"
             />
 
         <ImageButton
             android:id="@+id/clr_debounce"
+            android:src="@android:drawable/ic_menu_close_clear_cancel"
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="0dp"
-            android:src="@android:drawable/ic_menu_close_clear_cancel"
             />
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 73b3e120..0f06a098 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -93,6 +93,7 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_exponential_backoff"
             />
+
         <Button
             android:id="@+id/btn_demo_rotation_persist"
             android:layout_height="wrap_content"
diff --git a/app/src/main/res/menu/demo.xml b/app/src/main/res/menu/demo.xml
index dd9b16cd..d5726166 100644
--- a/app/src/main/res/menu/demo.xml
+++ b/app/src/main/res/menu/demo.xml
@@ -1,8 +1,11 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    tools:context=".DemoActivity" >
-    <item android:id="@+id/action_settings"
+      xmlns:tools="http://schemas.android.com/tools"
+      tools:context=".DemoActivity"
+    >
+    <item
+        android:id="@+id/action_settings"
         android:title="@string/action_settings"
         android:orderInCategory="100"
-        android:showAsAction="never" />
+        android:showAsAction="never"
+        />
 </menu>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index ff6c9d2c..0810d6e8 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,7 +1,8 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+    <style name="AppTheme"
+           parent="android:Theme.Holo.Light.DarkActionBar">
         <!-- Customize your theme here. -->
     </style>
 

From 0b171e527ec5351c2f4b47758c0061383b2a4f00 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 3 Sep 2015 18:14:55 -0700
Subject: [PATCH 118/260] ref: rename persist worker example to 1 (cause
 there's a 2 coming up)

---
 .../android/rxjava/MainActivity.java          |  4 +-
 .../rxjava/fragments/MainFragment.java        |  2 +-
 ...ent.java => RotationPersist1Fragment.java} | 68 ++++++++++---------
 ...va => RotationPersist1WorkerFragment.java} | 16 ++---
 4 files changed, 46 insertions(+), 44 deletions(-)
 rename app/src/main/java/com/morihacky/android/rxjava/fragments/{RotationPersistFragment.java => RotationPersist1Fragment.java} (89%)
 rename app/src/main/java/com/morihacky/android/rxjava/fragments/{RotationPersistWorkerFragment.java => RotationPersist1WorkerFragment.java} (86%)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 4da21a0e..89a9ec3d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -4,7 +4,7 @@
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.fragments.MainFragment;
-import com.morihacky.android.rxjava.fragments.RotationPersistWorkerFragment;
+import com.morihacky.android.rxjava.fragments.RotationPersist1WorkerFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
 public class MainActivity
@@ -26,7 +26,7 @@ public void onBackPressed() {
         super.onBackPressed();
 
         Fragment frag = getSupportFragmentManager()//
-              .findFragmentByTag(RotationPersistWorkerFragment.class.getName());
+              .findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
 
         if (frag != null) {
             getSupportFragmentManager().beginTransaction().remove(frag).commit();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 0ec6c01d..f72c6cd7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -76,7 +76,7 @@ void demoExponentialBackoff() {
 
     @OnClick(R.id.btn_demo_rotation_persist)
     void demoRotationPersist() {
-        clickedOn(new RotationPersistFragment());
+        clickedOn(new RotationPersist1Fragment());
     }
 
     private void clickedOn(@NonNull Fragment fragment) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
similarity index 89%
rename from app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 55175a44..54a7d14c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -24,11 +24,11 @@
 
 import static android.os.Looper.getMainLooper;
 
-public class RotationPersistFragment
+public class RotationPersist1Fragment
       extends BaseFragment
-      implements RotationPersistWorkerFragment.IAmYourMaster {
+      implements RotationPersist1WorkerFragment.IAmYourMaster {
 
-    public static final String FRAG_TAG = RotationPersistWorkerFragment.class.getName();
+    public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
 
     @InjectView(R.id.list_threading_log) ListView _logList;
 
@@ -37,33 +37,6 @@ public class RotationPersistFragment
 
     private CompositeSubscription _subscriptions = new CompositeSubscription();
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.inject(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
-    }
-
     // -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_rotate_persist)
@@ -72,11 +45,11 @@ public void startOperationFromWorkerFrag() {
         _adapter.clear();
 
         FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersistWorkerFragment frag =//
-              (RotationPersistWorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+        RotationPersist1WorkerFragment frag =//
+              (RotationPersist1WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
 
         if (frag == null) {
-            frag = new RotationPersistWorkerFragment();
+            frag = new RotationPersist1WorkerFragment();
             fm.beginTransaction().add(frag, FRAG_TAG).commit();
         } else {
             Timber.d("Worker frag already spawned");
@@ -113,6 +86,35 @@ public void onNext(Integer integer) {
     }
 
     // -----------------------------------------------------------------------------------
+    // Boilerplate
+    // -----------------------------------------------------------------------------------
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+    }
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
similarity index 86%
rename from app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
index 92126687..58bdede1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersistWorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
@@ -11,12 +11,12 @@
 import rx.functions.Func1;
 import rx.observables.ConnectableObservable;
 
-public class RotationPersistWorkerFragment
+public class RotationPersist1WorkerFragment
       extends Fragment {
 
-    private ConnectableObservable<Integer> storedIntsObservable;
     private IAmYourMaster _masterFrag;
-    private Subscription storedIntsSubscription;
+    private ConnectableObservable<Integer> _storedIntsObservable;
+    private Subscription _storedIntsSubscription;
 
     /**
      * Hold a reference to the activity -> caller fragment
@@ -49,7 +49,7 @@ public void onCreate(Bundle savedInstanceState) {
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-        if (storedIntsObservable != null) {
+        if (_storedIntsObservable != null) {
             return;
         }
 
@@ -67,9 +67,9 @@ public Integer call(Long aLong) {
         // Making our observable "HOT" for the purpose of the demo.
 
         //_intsObservable = _intsObservable.share();
-        storedIntsObservable = intsObservable.replay();
+        _storedIntsObservable = intsObservable.replay();
 
-        storedIntsSubscription = storedIntsObservable.connect();
+        _storedIntsSubscription = _storedIntsObservable.connect();
 
         // Do not do this in production!
         // `.share` is "warm" not "hot"
@@ -83,7 +83,7 @@ public Integer call(Long aLong) {
     @Override
     public void onResume() {
         super.onResume();
-        _masterFrag.observeResults(storedIntsObservable);
+        _masterFrag.observeResults(_storedIntsObservable);
     }
 
     /**
@@ -99,7 +99,7 @@ public void onDetach() {
     @Override
     public void onDestroy() {
         super.onDestroy();
-        storedIntsSubscription.unsubscribe();
+        _storedIntsSubscription.unsubscribe();
     }
 
     public interface IAmYourMaster {

From 98a6841f2cdcc958364fdca13735f9dcb34ef334 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 3 Sep 2015 18:16:16 -0700
Subject: [PATCH 119/260] feat: wip create a worker 2 fragment (use Eric's
 advice and refactor)

---
 .../fragments/RotationPersist2Fragment.java   | 138 ++++++++++++++++++
 .../RotationPersist2WorkerFragment.java       | 116 +++++++++++++++
 2 files changed, 254 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
new file mode 100644
index 00000000..aa7eeb99
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -0,0 +1,138 @@
+package com.morihacky.android.rxjava.fragments;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.annotation.Nullable;
+import android.support.v4.app.FragmentManager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ListView;
+import butterknife.ButterKnife;
+import butterknife.InjectView;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
+import java.util.ArrayList;
+import java.util.List;
+import rx.Observer;
+import rx.functions.Action0;
+import rx.observables.ConnectableObservable;
+import rx.subscriptions.CompositeSubscription;
+import timber.log.Timber;
+
+import static android.os.Looper.getMainLooper;
+
+public class RotationPersist2Fragment
+      extends BaseFragment
+      implements RotationPersist1WorkerFragment.IAmYourMaster {
+
+    public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
+
+    @InjectView(R.id.list_threading_log) ListView _logList;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    private CompositeSubscription _subscriptions = new CompositeSubscription();
+
+    // -----------------------------------------------------------------------------------
+
+    @OnClick(R.id.btn_rotate_persist)
+    public void startOperationFromWorkerFrag() {
+        _logs = new ArrayList<>();
+        _adapter.clear();
+
+        FragmentManager fm = getActivity().getSupportFragmentManager();
+        RotationPersist1WorkerFragment frag =//
+              (RotationPersist1WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+
+        if (frag == null) {
+            frag = new RotationPersist1WorkerFragment();
+            fm.beginTransaction().add(frag, FRAG_TAG).commit();
+        } else {
+            Timber.d("Worker frag already spawned");
+        }
+    }
+
+    @Override
+    public void observeResults(ConnectableObservable<Integer> intsObservable) {
+
+        _subscriptions.add(//
+              intsObservable.doOnSubscribe(new Action0() {
+                  @Override
+                  public void call() {
+                      _log("Subscribing to intsObservable");
+                  }
+              }).subscribe(new Observer<Integer>() {
+                  @Override
+                  public void onCompleted() {
+                      _log("Observable is complete");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "Error in worker demo frag observable");
+                      _log("Dang! something went wrong.");
+                  }
+
+                  @Override
+                  public void onNext(Integer integer) {
+                      _log(String.format("Worker frag spits out - %d", integer));
+                  }
+              }));
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Boilerplate
+    // -----------------------------------------------------------------------------------
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
+        ButterKnife.inject(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+    }
+
+    private void _setupLogger() {
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+        _logs.add(0, logMsg);
+
+        // You can only do below stuff on main thread.
+        new Handler(getMainLooper()).post(new Runnable() {
+
+            @Override
+            public void run() {
+                _adapter.clear();
+                _adapter.addAll(_logs);
+            }
+        });
+    }
+
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
new file mode 100644
index 00000000..0e5609ae
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
@@ -0,0 +1,116 @@
+package com.morihacky.android.rxjava.fragments;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import com.morihacky.android.rxjava.MainActivity;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import rx.Observable;
+import rx.Subscription;
+import rx.functions.Func1;
+import rx.observables.ConnectableObservable;
+
+public class RotationPersist2WorkerFragment
+      extends Fragment {
+
+    private IAmYourMaster _masterFrag;
+    private ConnectableObservable<Integer> _storedIntsObservable;
+    private Subscription _storedIntsSubscription;
+
+    /**
+     * FIXME:
+     *
+     * 1. dangerous techniques such as replay and connectable observables (both code smells in Rx).
+     * 2. you terminate the interval in a non-Rx manner using a global subscription variable  instead of using takeUntil
+     * 3. ? you use the technique of making the parent implement a callback interface where it is possible to also do that in an Rx-based manner.
+     */
+
+    /**
+     * Hold a reference to the activity -> caller fragment
+     * this way when the worker frag kicks off
+     * we can talk back to the master and send results
+     */
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+
+        List<Fragment> frags = ((MainActivity) activity).getSupportFragmentManager().getFragments();
+        for (Fragment f : frags) {
+            if (f instanceof IAmYourMaster) {
+                _masterFrag = (IAmYourMaster) f;
+            }
+        }
+
+        if (_masterFrag == null) {
+            throw new ClassCastException("We did not find a master who can understand us :(");
+        }
+    }
+
+    /**
+     * This method will only be called once when the retained Fragment is first created.
+     */
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Retain this fragment across configuration changes.
+        setRetainInstance(true);
+
+        if (_storedIntsObservable != null) {
+            return;
+        }
+
+        Observable<Integer> intsObservable =//
+              Observable.interval(1, TimeUnit.SECONDS)//
+                    .map(new Func1<Long, Integer>() {
+                        @Override
+                        public Integer call(Long aLong) {
+                            return aLong.intValue();
+                        }
+                    })//
+                    .take(20);
+
+        // -----------------------------------------------------------------------------------
+        // Making our observable "HOT" for the purpose of the demo.
+        // we can simply use subjects for this.
+        // Connecteable Observables are messy and a code smell
+
+        //_intsObservable = _intsObservable.share();
+        _storedIntsObservable = intsObservable.replay();
+        // we use replay to turn the observable "hot"
+
+        _storedIntsSubscription = _storedIntsObservable.connect();
+
+
+    }
+
+    /**
+     * The Worker fragment has started doing it's thing
+     */
+    @Override
+    public void onResume() {
+        super.onResume();
+        _masterFrag.observeResults(_storedIntsObservable);
+    }
+
+    /**
+     * Set the callback to null so we don't accidentally leak the
+     * Activity instance.
+     */
+    @Override
+    public void onDetach() {
+        super.onDetach();
+        _masterFrag = null;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _storedIntsSubscription.unsubscribe();
+    }
+
+    public interface IAmYourMaster {
+        void observeResults(ConnectableObservable<Integer> intsObservable);
+    }
+}

From e6158c07e0647dff3bb087372e0c886223fc6b72 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 3 Sep 2015 18:45:45 -0700
Subject: [PATCH 120/260] fix: add missing imports for R

---
 .../android/rxjava/fragments/DoubleBindingTextViewFragment.java  | 1 +
 .../rxjava/fragments/FormValidationCombineLatestFragment.java    | 1 +
 .../android/rxjava/fragments/PseudoCacheConcatFragment.java      | 1 +
 3 files changed, 3 insertions(+)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index 8c810049..fe305d77 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -10,6 +10,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnTextChanged;
+import com.morihacky.android.rxjava.R;
 import rx.Subscription;
 import rx.functions.Action1;
 import rx.subjects.PublishSubject;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 7fdb2de2..d8d609f0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -10,6 +10,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import com.jakewharton.rxbinding.widget.RxTextView;
+import com.morihacky.android.rxjava.R;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index d3b4a405..c7496074 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -11,6 +11,7 @@
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import java.util.ArrayList;

From 9cd4779dee677350a27fc28324ea6e74e33c0d50 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 4 Sep 2015 13:44:02 -0700
Subject: [PATCH 121/260] refactor: ConnectableObservable and replay are code
 smells in Rx - use a Subject instead

---
 .../android/rxjava/MainActivity.java          | 25 ++++++++---
 .../rxjava/fragments/MainFragment.java        |  3 +-
 .../fragments/RotationPersist2Fragment.java   | 17 ++++---
 .../RotationPersist2WorkerFragment.java       | 44 +++++--------------
 4 files changed, 39 insertions(+), 50 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 89a9ec3d..41bc79ae 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -5,6 +5,7 @@
 import android.support.v4.app.FragmentActivity;
 import com.morihacky.android.rxjava.fragments.MainFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist1WorkerFragment;
+import com.morihacky.android.rxjava.fragments.RotationPersist2WorkerFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
 public class MainActivity
@@ -24,13 +25,7 @@ public RxBus getRxBusSingleton() {
     @Override
     public void onBackPressed() {
         super.onBackPressed();
-
-        Fragment frag = getSupportFragmentManager()//
-              .findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
-
-        if (frag != null) {
-            getSupportFragmentManager().beginTransaction().remove(frag).commit();
-        }
+        _removeWorkerFragments();
     }
 
     @Override
@@ -43,4 +38,20 @@ protected void onCreate(Bundle savedInstanceState) {
                   .commit();
         }
     }
+
+    private void _removeWorkerFragments() {
+        Fragment frag = getSupportFragmentManager()//
+              .findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
+
+        if (frag != null) {
+            getSupportFragmentManager().beginTransaction().remove(frag).commit();
+        }
+
+        frag = getSupportFragmentManager()//
+              .findFragmentByTag(RotationPersist2WorkerFragment.class.getName());
+
+        if (frag != null) {
+            getSupportFragmentManager().beginTransaction().remove(frag).commit();
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index f72c6cd7..d271bc3b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -76,7 +76,8 @@ void demoExponentialBackoff() {
 
     @OnClick(R.id.btn_demo_rotation_persist)
     void demoRotationPersist() {
-        clickedOn(new RotationPersist1Fragment());
+        clickedOn(new RotationPersist2Fragment());
+        //clickedOn(new RotationPersist1Fragment());
     }
 
     private void clickedOn(@NonNull Fragment fragment) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index aa7eeb99..49e7128e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -16,9 +16,9 @@
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import java.util.ArrayList;
 import java.util.List;
+import rx.Observable;
 import rx.Observer;
 import rx.functions.Action0;
-import rx.observables.ConnectableObservable;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
@@ -26,9 +26,9 @@
 
 public class RotationPersist2Fragment
       extends BaseFragment
-      implements RotationPersist1WorkerFragment.IAmYourMaster {
+      implements RotationPersist2WorkerFragment.IAmYourMaster {
 
-    public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
+    public static final String FRAG_TAG = RotationPersist2WorkerFragment.class.getName();
 
     @InjectView(R.id.list_threading_log) ListView _logList;
 
@@ -45,11 +45,11 @@ public void startOperationFromWorkerFrag() {
         _adapter.clear();
 
         FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersist1WorkerFragment frag =//
-              (RotationPersist1WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+        RotationPersist2WorkerFragment frag =//
+              (RotationPersist2WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
 
         if (frag == null) {
-            frag = new RotationPersist1WorkerFragment();
+            frag = new RotationPersist2WorkerFragment();
             fm.beginTransaction().add(frag, FRAG_TAG).commit();
         } else {
             Timber.d("Worker frag already spawned");
@@ -57,10 +57,10 @@ public void startOperationFromWorkerFrag() {
     }
 
     @Override
-    public void observeResults(ConnectableObservable<Integer> intsObservable) {
+    public void setStream(Observable<Integer> intStream) {
 
         _subscriptions.add(//
-              intsObservable.doOnSubscribe(new Action0() {
+              intStream.doOnSubscribe(new Action0() {
                   @Override
                   public void call() {
                       _log("Subscribing to intsObservable");
@@ -134,5 +134,4 @@ public void run() {
             }
         });
     }
-
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
index 0e5609ae..313d7467 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
@@ -9,27 +9,21 @@
 import rx.Observable;
 import rx.Subscription;
 import rx.functions.Func1;
-import rx.observables.ConnectableObservable;
+import rx.subjects.PublishSubject;
+import rx.subjects.Subject;
 
 public class RotationPersist2WorkerFragment
       extends Fragment {
 
     private IAmYourMaster _masterFrag;
-    private ConnectableObservable<Integer> _storedIntsObservable;
     private Subscription _storedIntsSubscription;
+    private Subject<Integer, Integer> _intStream = PublishSubject.create();
 
     /**
-     * FIXME:
+     * Since we're holding a reference to the Master a.k.a Activity/Master Frag
+     * remember to explicitly remove the worker fragment or you'll have a mem leak in your hands.
      *
-     * 1. dangerous techniques such as replay and connectable observables (both code smells in Rx).
-     * 2. you terminate the interval in a non-Rx manner using a global subscription variable  instead of using takeUntil
-     * 3. ? you use the technique of making the parent implement a callback interface where it is possible to also do that in an Rx-based manner.
-     */
-
-    /**
-     * Hold a reference to the activity -> caller fragment
-     * this way when the worker frag kicks off
-     * we can talk back to the master and send results
+     * See {@link MainActivity#onBackPressed()}
      */
     @Override
     public void onAttach(Activity activity) {
@@ -57,11 +51,7 @@ public void onCreate(Bundle savedInstanceState) {
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-        if (_storedIntsObservable != null) {
-            return;
-        }
-
-        Observable<Integer> intsObservable =//
+        _storedIntsSubscription =//
               Observable.interval(1, TimeUnit.SECONDS)//
                     .map(new Func1<Long, Integer>() {
                         @Override
@@ -69,20 +59,8 @@ public Integer call(Long aLong) {
                             return aLong.intValue();
                         }
                     })//
-                    .take(20);
-
-        // -----------------------------------------------------------------------------------
-        // Making our observable "HOT" for the purpose of the demo.
-        // we can simply use subjects for this.
-        // Connecteable Observables are messy and a code smell
-
-        //_intsObservable = _intsObservable.share();
-        _storedIntsObservable = intsObservable.replay();
-        // we use replay to turn the observable "hot"
-
-        _storedIntsSubscription = _storedIntsObservable.connect();
-
-
+                    .take(20)//
+                    .subscribe(_intStream);
     }
 
     /**
@@ -91,7 +69,7 @@ public Integer call(Long aLong) {
     @Override
     public void onResume() {
         super.onResume();
-        _masterFrag.observeResults(_storedIntsObservable);
+        _masterFrag.setStream(_intStream.asObservable());
     }
 
     /**
@@ -111,6 +89,6 @@ public void onDestroy() {
     }
 
     public interface IAmYourMaster {
-        void observeResults(ConnectableObservable<Integer> intsObservable);
+        void setStream(Observable<Integer> intStream);
     }
 }

From 358a1b3e07f87545c06f9a6d5f47be9e44f0bd7d Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Fri, 11 Sep 2015 15:19:18 -0700
Subject: [PATCH 122/260] fix: broken link to blog post

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 92192979..f5ddabf0 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ This is a repository with real-world useful examples of using RxJava with Androi
 
 ### Concurrency using schedulers
 
-A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
+A common requirement is to offload lengthy heavy I/O intensive operationsacc to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
 The long operation is simulated by a blocking Thread.sleep call (since this is done in a background thread, our UI is never interrupted).
 
@@ -69,7 +69,7 @@ Have a look at the accompanying blog posts for details on this demo:
 
 1. [Implementing an event bus with RxJava](http://nerds.weddingpartyapp.com/tech/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
 2. [DebouncedBuffer used for the fancier variant of the demo](http://nerds.weddingpartyapp.com/tech/2014/12/24/secret-bonus-part-debouncedbuffer-used-in-rxbus-example/)
-3. [share/publish/refcount](http://nerds.weddingpartyapp.com/tech/2014/12/24/rxjava-share-publish-refcount-and-all-that-jazz/)
+3. [share/publish/refcount](http://nerds.weddingpartyapp.com/tech/2015/01/21/rxjava-share-publish-refcount-and-all-that-jazz/)
 
 ### Form validation - using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
 

From 8f23a6e11707a468193056face4b104a21b58436 Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Wed, 16 Sep 2015 13:08:38 +1000
Subject: [PATCH 123/260] fix: typo

---
 .../rxjava/fragments/FormValidationCombineLatestFragment.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index d8d609f0..fa389b25 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -102,7 +102,7 @@ public void onCompleted() {
 
                   @Override
                   public void onError(Throwable e) {
-                      Timber.e(e, "there was an eroor");
+                      Timber.e(e, "there was an error");
                   }
 
                   @Override

From 37efbdf4b6f597fbfd4857fb1e3d6eb85e1c2d9d Mon Sep 17 00:00:00 2001
From: Igor Ganapolsky <igor.ganapolsky@chaione.com>
Date: Fri, 18 Sep 2015 11:42:42 -0400
Subject: [PATCH 124/260] Update gradle version. Update android library
 version.

---
 app/build.gradle                         | 4 ++--
 build.gradle                             | 2 +-
 gradle/wrapper/gradle-wrapper.properties | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 8fedb1bc..66a94372 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,7 +1,7 @@
 apply plugin: 'com.android.application'
 
 dependencies {
-    compile  'com.android.support:support-v13:21.0.2'
+    compile 'com.android.support:support-v13:23.0.1'
 
     compile 'io.reactivex:rxandroid:1.0.1'
     // Because RxAndroid releases are few and far between, it is recommended you also
@@ -22,7 +22,7 @@ dependencies {
 
 android {
     compileSdkVersion 23
-    buildToolsVersion '23'
+    buildToolsVersion '23.0.1'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
diff --git a/build.gradle b/build.gradle
index 8d6e1303..ae7242c0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.0'
+        classpath 'com.android.tools.build:gradle:1.3.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 4bc23594..67db8c56 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.7-all.zip

From 3ed00ff05897a855dab4a5d6a77a85a18ab54022 Mon Sep 17 00:00:00 2001
From: Prat <banqfirn@gmail.com>
Date: Wed, 16 Sep 2015 20:20:13 -0400
Subject: [PATCH 125/260] Update to Retrofit 2

---
 app/build.gradle                              |  4 +-
 .../fragments/PseudoCacheConcatFragment.java  | 33 ++++++++----
 .../fragments/PseudoCacheMergeFragment.java   | 36 +++++++++----
 .../RetrofitAsyncTaskDeathFragment.java       | 36 +++++++++----
 .../rxjava/fragments/RetrofitFragment.java    | 51 ++++++++++++-------
 5 files changed, 113 insertions(+), 47 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 8fedb1bc..6aef59f5 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,7 +12,9 @@ dependencies {
 
     compile 'com.jakewharton:butterknife:5.1.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'com.squareup.retrofit:retrofit:1.6.1'
+    compile 'com.squareup.retrofit:retrofit:2.0.0-beta1'
+    compile 'com.squareup.retrofit:adapter-rxjava:2.0.0-beta1'
+    compile 'com.squareup.retrofit:converter-gson:2.0.0-beta1'
     compile 'com.squareup.okhttp:okhttp:2.0.0'
     compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index c7496074..d06a8236 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -14,11 +14,19 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.squareup.okhttp.Interceptor;
+import com.squareup.okhttp.OkHttpClient;
+import com.squareup.okhttp.Request;
+import com.squareup.okhttp.Response;
+
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-import retrofit.RequestInterceptor;
-import retrofit.RestAdapter;
+
+import retrofit.GsonConverterFactory;
+import retrofit.Retrofit;
+import retrofit.RxJavaCallAdapterFactory;
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
@@ -123,19 +131,26 @@ public Observable<Contributor> call(List<Contributor> contributors) {
     }
 
     private GithubApi _createGithubApi() {
-
-        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
-              "https://api.github.com/");
-        //.setLogLevel(RestAdapter.LogLevel.FULL);
+        Retrofit.Builder builder =new Retrofit.Builder()
+                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .baseUrl("https://api.github.com");
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
+
         if (!TextUtils.isEmpty(githubToken)) {
-            builder.setRequestInterceptor(new RequestInterceptor() {
+            OkHttpClient client = new OkHttpClient();
+            client.interceptors().add(new Interceptor() {
                 @Override
-                public void intercept(RequestFacade request) {
-                    request.addHeader("Authorization", format("token %s", githubToken));
+                public Response intercept(Chain chain) throws IOException {
+                    Request request = chain.request();
+                    Request newReq = request.newBuilder()
+                            .addHeader("Authorization", format("token %s", githubToken))
+                            .build();
+                    return chain.proceed(newReq);
                 }
             });
+            builder.client(client);
         }
 
         return builder.build().create(GithubApi.class);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 17c6a6d5..720261ae 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -2,6 +2,7 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.text.TextUtils;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -14,11 +15,19 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.squareup.okhttp.Interceptor;
+import com.squareup.okhttp.OkHttpClient;
+import com.squareup.okhttp.Request;
+import com.squareup.okhttp.Response;
+
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-import retrofit.RequestInterceptor;
-import retrofit.RestAdapter;
+
+import retrofit.GsonConverterFactory;
+import retrofit.Retrofit;
+import retrofit.RxJavaCallAdapterFactory;
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
@@ -144,19 +153,26 @@ public Pair<Contributor, Long> call(Contributor contributor) {
     }
 
     private GithubApi _createGithubApi() {
-
-        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
-              "https://api.github.com/");
-        //.setLogLevel(RestAdapter.LogLevel.FULL);
+        Retrofit.Builder builder = new Retrofit.Builder()
+                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .baseUrl("https://api.github.com");
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isEmpty(githubToken)) {
-            builder.setRequestInterceptor(new RequestInterceptor() {
+
+        if (!TextUtils.isEmpty(githubToken)) {
+            OkHttpClient client = new OkHttpClient();
+            client.interceptors().add(new Interceptor() {
                 @Override
-                public void intercept(RequestFacade request) {
-                    request.addHeader("Authorization", format("token %s", githubToken));
+                public Response intercept(Chain chain) throws IOException {
+                    Request request = chain.request();
+                    Request newReq = request.newBuilder()
+                            .addHeader("Authorization", format("token %s", githubToken))
+                            .build();
+                    return chain.proceed(newReq);
                 }
             });
+            builder.client(client);
         }
 
         return builder.build().create(GithubApi.class);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 5e6a48c1..75b909ab 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -4,6 +4,7 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -16,9 +17,17 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
+import com.squareup.okhttp.Interceptor;
+import com.squareup.okhttp.OkHttpClient;
+import com.squareup.okhttp.Request;
+import com.squareup.okhttp.Response;
+
+import java.io.IOException;
 import java.util.ArrayList;
-import retrofit.RequestInterceptor;
-import retrofit.RestAdapter;
+
+import retrofit.GsonConverterFactory;
+import retrofit.Retrofit;
+import retrofit.RxJavaCallAdapterFactory;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
@@ -102,19 +111,26 @@ public void onNext(User user) {
     // -----------------------------------------------------------------------------------
 
     private GithubApi _createGithubApi() {
-
-        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
-              "https://api.github.com/");
-        //.setLogLevel(RestAdapter.LogLevel.FULL);
+        Retrofit.Builder builder = new Retrofit.Builder()
+                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .baseUrl("https://api.github.com");
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isEmpty(githubToken)) {
-            builder.setRequestInterceptor(new RequestInterceptor() {
+
+        if (!TextUtils.isEmpty(githubToken)) {
+            OkHttpClient client = new OkHttpClient();
+            client.interceptors().add(new Interceptor() {
                 @Override
-                public void intercept(RequestFacade request) {
-                    request.addHeader("Authorization", format("token %s", githubToken));
+                public Response intercept(Chain chain) throws IOException {
+                    Request request = chain.request();
+                    Request newReq = request.newBuilder()
+                            .addHeader("Authorization", format("token %s", githubToken))
+                            .build();
+                    return chain.proceed(newReq);
                 }
             });
+            builder.client(client);
         }
 
         return builder.build().create(GithubApi.class);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 13e53c89..6727654a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -1,8 +1,19 @@
 package com.morihacky.android.rxjava.fragments;
 
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
+import com.morihacky.android.rxjava.retrofit.Contributor;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.morihacky.android.rxjava.retrofit.User;
+import com.squareup.okhttp.Interceptor;
+import com.squareup.okhttp.OkHttpClient;
+import com.squareup.okhttp.Request;
+import com.squareup.okhttp.Response;
+
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.TextUtils;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -10,18 +21,17 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
 import butterknife.ButterKnife;
 import butterknife.InjectView;
 import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
-import com.morihacky.android.rxjava.retrofit.Contributor;
-import com.morihacky.android.rxjava.retrofit.GithubApi;
-import com.morihacky.android.rxjava.retrofit.User;
-import java.util.ArrayList;
-import java.util.List;
-import retrofit.RequestInterceptor;
-import retrofit.RestAdapter;
+import retrofit.GsonConverterFactory;
+import retrofit.Retrofit;
+import retrofit.RxJavaCallAdapterFactory;
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
@@ -192,19 +202,26 @@ public void onNext(Pair<User, Contributor> pair) {
     // -----------------------------------------------------------------------------------
 
     private GithubApi _createGithubApi() {
-
-        RestAdapter.Builder builder = new RestAdapter.Builder().setEndpoint(
-              "https://api.github.com/");
-        //.setLogLevel(RestAdapter.LogLevel.FULL);
+        Retrofit.Builder builder = new Retrofit.Builder()
+                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .baseUrl("https://api.github.com");
 
         final String githubToken = getResources().getString(R.string.github_oauth_token);
-        if (!isEmpty(githubToken)) {
-            builder.setRequestInterceptor(new RequestInterceptor() {
+
+        if (!TextUtils.isEmpty(githubToken)) {
+            OkHttpClient client = new OkHttpClient();
+            client.interceptors().add(new Interceptor() {
                 @Override
-                public void intercept(RequestFacade request) {
-                    request.addHeader("Authorization", format("token %s", githubToken));
+                public Response intercept(Chain chain) throws IOException {
+                    Request request = chain.request();
+                    Request newReq = request.newBuilder()
+                            .addHeader("Authorization", format("token %s", githubToken))
+                            .build();
+                    return chain.proceed(newReq);
                 }
             });
+            builder.client(client);
         }
 
         return builder.build().create(GithubApi.class);

From aa9699976eca6770db73a93a4a4dd7d235768033 Mon Sep 17 00:00:00 2001
From: Santiago Castro <bryant@montevideo.com.uy>
Date: Wed, 30 Sep 2015 01:18:48 -0300
Subject: [PATCH 126/260] Change "where when" for "so when"

So it sounds better :smiley_face:
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index f5ddabf0..0cee2ed3 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ The code for this example has already been written by one Mr.skehlet in the inte
 
 ### Double binding with TextViews
 
-Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two-way data binding", where when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
+Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two-way data binding", so when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
 
 While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 

From 3515c6ae741736b5fc581bcc47293915de44aca5 Mon Sep 17 00:00:00 2001
From: Mitchell <marukami.kaito@gmail.com>
Date: Sun, 25 Oct 2015 14:12:22 +1100
Subject: [PATCH 127/260] update ButterKnife 5.1.1 -> 7.0.1

---
 app/build.gradle                                     |  2 +-
 .../android/rxjava/fragments/BufferDemoFragment.java |  8 ++++----
 .../ConcurrencyWithSchedulersDemoFragment.java       |  8 ++++----
 .../fragments/DebounceSearchEmitterFragment.java     |  8 ++++----
 .../fragments/DoubleBindingTextViewFragment.java     | 10 +++++-----
 .../rxjava/fragments/ExponentialBackoffFragment.java |  6 +++---
 .../FormValidationCombineLatestFragment.java         | 12 ++++++------
 .../android/rxjava/fragments/MainFragment.java       |  2 +-
 .../android/rxjava/fragments/PollingFragment.java    |  6 +++---
 .../rxjava/fragments/PseudoCacheConcatFragment.java  |  6 +++---
 .../rxjava/fragments/PseudoCacheMergeFragment.java   |  6 +++---
 .../fragments/RetrofitAsyncTaskDeathFragment.java    |  8 ++++----
 .../android/rxjava/fragments/RetrofitFragment.java   | 10 +++++-----
 .../rxjava/fragments/RotationPersist1Fragment.java   |  6 +++---
 .../rxjava/fragments/RotationPersist2Fragment.java   |  6 +++---
 .../rxjava/fragments/TimeoutDemoFragment.java        |  6 +++---
 .../android/rxjava/fragments/TimingDemoFragment.java |  6 +++---
 .../android/rxjava/rxbus/RxBusDemoFragment.java      |  2 +-
 .../rxjava/rxbus/RxBusDemo_Bottom1Fragment.java      |  6 +++---
 .../rxjava/rxbus/RxBusDemo_Bottom2Fragment.java      |  8 ++++----
 .../rxjava/rxbus/RxBusDemo_Bottom3Fragment.java      |  8 ++++----
 .../android/rxjava/rxbus/RxBusDemo_TopFragment.java  |  2 +-
 22 files changed, 71 insertions(+), 71 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 66a94372..d11bcaa8 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,7 +10,7 @@ dependencies {
     compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
 
-    compile 'com.jakewharton:butterknife:5.1.1'
+    compile 'com.jakewharton:butterknife:7.0.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile 'com.squareup.retrofit:retrofit:1.6.1'
     compile 'com.squareup.okhttp:okhttp:2.0.0'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 6a91aec5..35447497 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -10,7 +10,7 @@
 import android.widget.Button;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import com.jakewharton.rxbinding.view.RxView;
 import com.jakewharton.rxbinding.view.ViewClickEvent;
 import com.morihacky.android.rxjava.R;
@@ -41,8 +41,8 @@
 public class BufferDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-    @InjectView(R.id.btn_start_operation) Button _tapBtn;
+    @Bind(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.btn_start_operation) Button _tapBtn;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -72,7 +72,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index 292827ca..314e3af0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -12,7 +12,7 @@
 import android.widget.ListView;
 import android.widget.ProgressBar;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
@@ -28,8 +28,8 @@
 public class ConcurrencyWithSchedulersDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.progress_operation_running) ProgressBar _progress;
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.progress_operation_running) ProgressBar _progress;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -54,7 +54,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 139a654d..e6090dd8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -12,7 +12,7 @@
 import android.widget.EditText;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
@@ -30,8 +30,8 @@
 public class DebounceSearchEmitterFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-    @InjectView(R.id.input_txt_debounce) EditText _inputSearchText;
+    @Bind(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.input_txt_debounce) EditText _inputSearchText;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -51,7 +51,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_debounce, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index fe305d77..df6e1c7f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -8,7 +8,7 @@
 import android.widget.EditText;
 import android.widget.TextView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnTextChanged;
 import com.morihacky.android.rxjava.R;
 import rx.Subscription;
@@ -20,9 +20,9 @@
 public class DoubleBindingTextViewFragment
       extends BaseFragment {
 
-    @InjectView(R.id.double_binding_num1) EditText _number1;
-    @InjectView(R.id.double_binding_num2) EditText _number2;
-    @InjectView(R.id.double_binding_result) TextView _result;
+    @Bind(R.id.double_binding_num1) EditText _number1;
+    @Bind(R.id.double_binding_num2) EditText _number2;
+    @Bind(R.id.double_binding_result) TextView _result;
 
     Subscription _subscription;
     PublishSubject<Float> _resultEmitterSubject;
@@ -32,7 +32,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _resultEmitterSubject = PublishSubject.create();
         _subscription = _resultEmitterSubject.asObservable().subscribe(new Action1<Float>() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index df860315..e8f74361 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -8,7 +8,7 @@
 import android.view.ViewGroup;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
@@ -29,7 +29,7 @@
 public class ExponentialBackoffFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logList;
+    @Bind(R.id.list_threading_log) ListView _logList;
     private LogAdapter _adapter;
     private List<String> _logs;
 
@@ -52,7 +52,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_exponential_backoff, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index fa389b25..acc8d964 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -8,7 +8,7 @@
 import android.widget.EditText;
 import android.widget.TextView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
 import rx.Observable;
@@ -23,10 +23,10 @@
 public class FormValidationCombineLatestFragment
       extends BaseFragment {
 
-    @InjectView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
-    @InjectView(R.id.demo_combl_email) EditText _email;
-    @InjectView(R.id.demo_combl_password) EditText _password;
-    @InjectView(R.id.demo_combl_num) EditText _number;
+    @Bind(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
+    @Bind(R.id.demo_combl_email) EditText _email;
+    @Bind(R.id.demo_combl_password) EditText _password;
+    @Bind(R.id.demo_combl_num) EditText _number;
 
     private Observable<CharSequence> _emailChangeObservable;
     private Observable<CharSequence> _passwordChangeObservable;
@@ -41,7 +41,7 @@ public View onCreateView(LayoutInflater inflater,
         View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest,
               container,
               false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _emailChangeObservable = RxTextView.textChanges(_email).skip(1);
         _passwordChangeObservable = RxTextView.textChanges(_password).skip(1);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index d271bc3b..030e9503 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -20,7 +20,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_main, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index fc52780a..f3c36d2b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -11,7 +11,7 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import java.util.ArrayList;
@@ -30,7 +30,7 @@ public class PollingFragment
 
     public static final int INITIAL_DELAY = 0;
     public static final int POLLING_INTERVAL = 1000;
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -55,7 +55,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_polling, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index c7496074..34a1a9a6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -9,7 +9,7 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
@@ -31,7 +31,7 @@
 public class PseudoCacheConcatFragment
       extends BaseFragment {
 
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private Subscription _subscription = null;
     private HashMap<String, Long> _contributionMap = null;
@@ -42,7 +42,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         _initializeCache();
         return layout;
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 17c6a6d5..43344775 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -9,7 +9,7 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
@@ -32,7 +32,7 @@
 public class PseudoCacheMergeFragment
       extends BaseFragment {
 
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private Subscription _subscription = null;
     private HashMap<String, Long> _contributionMap = null;
@@ -44,7 +44,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         _initializeCache();
         return layout;
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 5e6a48c1..a5008019 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -11,7 +11,7 @@
 import android.widget.EditText;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
@@ -29,8 +29,8 @@
 public class RetrofitAsyncTaskDeathFragment
       extends Fragment {
 
-    @InjectView(R.id.btn_demo_retrofit_async_death_username) EditText _username;
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.btn_demo_retrofit_async_death_username) EditText _username;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private GithubApi _api;
     private ArrayAdapter<String> _adapter;
@@ -49,7 +49,7 @@ public View onCreateView(LayoutInflater inflater,
         View layout = inflater.inflate(R.layout.fragment_retrofit_async_task_death,
               container,
               false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 13e53c89..6092db92 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -11,7 +11,7 @@
 import android.widget.EditText;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
@@ -37,9 +37,9 @@
 public class RetrofitFragment
       extends Fragment {
 
-    @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
-    @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.demo_retrofit_contributors_username) EditText _username;
+    @Bind(R.id.demo_retrofit_contributors_repository) EditText _repo;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private GithubApi _api;
     private ArrayAdapter<String> _adapter;
@@ -70,7 +70,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable Bundle savedInstanceState) {
 
         View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 54a7d14c..36fa72d2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -9,7 +9,7 @@
 import android.view.ViewGroup;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
@@ -30,7 +30,7 @@ public class RotationPersist1Fragment
 
     public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
 
-    @InjectView(R.id.list_threading_log) ListView _logList;
+    @Bind(R.id.list_threading_log) ListView _logList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -106,7 +106,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index 49e7128e..6be49d52 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -9,7 +9,7 @@
 import android.view.ViewGroup;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
@@ -30,7 +30,7 @@ public class RotationPersist2Fragment
 
     public static final String FRAG_TAG = RotationPersist2WorkerFragment.class.getName();
 
-    @InjectView(R.id.list_threading_log) ListView _logList;
+    @Bind(R.id.list_threading_log) ListView _logList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -105,7 +105,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index bebfbe16..b7a587c0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -9,7 +9,7 @@
 import android.view.ViewGroup;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
@@ -27,7 +27,7 @@
 public class TimeoutDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -51,7 +51,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 68d3b16c..cd0ae184 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -8,7 +8,7 @@
 import android.view.ViewGroup;
 import android.widget.ListView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
@@ -28,7 +28,7 @@
 public class TimingDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -47,7 +47,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_demo_timing, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index ad1ad6ff..8eac88b7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -17,7 +17,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 7b7308fc..338443c6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -8,7 +8,7 @@
 import android.view.ViewGroup;
 import android.widget.TextView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
@@ -18,7 +18,7 @@
 public class RxBusDemo_Bottom1Fragment
       extends BaseFragment {
 
-    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
     private RxBus _rxBus;
     private CompositeSubscription _subscriptions;
 
@@ -27,7 +27,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 3098ecc3..5d66ec51 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -8,7 +8,7 @@
 import android.view.ViewGroup;
 import android.widget.TextView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
@@ -22,8 +22,8 @@
 public class RxBusDemo_Bottom2Fragment
       extends BaseFragment {
 
-    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
     private RxBus _rxBus;
     private CompositeSubscription _subscriptions;
 
@@ -32,7 +32,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index 2f75f165..775f5d1d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -8,7 +8,7 @@
 import android.view.ViewGroup;
 import android.widget.TextView;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
+import butterknife.Bind;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
@@ -24,8 +24,8 @@
 public class RxBusDemo_Bottom3Fragment
       extends BaseFragment {
 
-    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
     private RxBus _rxBus;
     private CompositeSubscription _subscriptions;
 
@@ -34,7 +34,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index 568244ca..bab619fd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -21,7 +21,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 

From 51acf73f4c1c9f4c989eaa22f1f2225104700665 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Fri, 20 Nov 2015 20:22:25 -0800
Subject: [PATCH 128/260] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 0cee2ed3..5ffe76ee 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@ Learning RxJava for Android by example
 
 This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://nerds.weddingpartyapp.com/tech/2014/09/15/learning-rxjava-with-android-by-example/).
 
+I also gave a talk at a local meetup about warming up to RxJava here. Here's a link to the [video and slides](https://newcircle.com/s/post/1744/2015/06/29/learning-rxjava-for-android-by-example).
+
 ## Examples:
 
 ### Concurrency using schedulers

From ddcbefc198f95696f50df6d5614b7513e29b5925 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E8=A5=BF=E6=B6=9B?= <zhangxitao@qianmi.com>
Date: Wed, 30 Dec 2015 15:44:47 +0800
Subject: [PATCH 129/260] volley rx demo

---
 app/build.gradle                              |   4 +-
 .../com/morihacky/android/rxjava/MyApp.java   |   5 +
 .../rxjava/fragments/MainFragment.java        |  11 +-
 .../rxjava/fragments/VolleyDemoFragment.java  | 189 ++++++++++++++++++
 .../android/rxjava/wiring/MyVolley.java       |  63 ++++++
 app/src/main/res/layout/fragment_main.xml     |   6 +
 app/src/main/res/layout/fragment_volley.xml   |  34 ++++
 app/src/main/res/values/strings.xml           |   3 +-
 8 files changed, 311 insertions(+), 4 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java
 create mode 100644 app/src/main/res/layout/fragment_volley.xml

diff --git a/app/build.gradle b/app/build.gradle
index d11bcaa8..164fdf86 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -18,6 +18,8 @@ dependencies {
 
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
     releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
+    compile 'com.mcxiaoke.volley:library:1.0.19'
+
 }
 
 android {
@@ -37,4 +39,4 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
-}
\ No newline at end of file
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index b66f855f..f6f18c97 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -1,6 +1,8 @@
 package com.morihacky.android.rxjava;
 
 import android.app.Application;
+
+import com.morihacky.android.rxjava.wiring.MyVolley;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
 import timber.log.Timber;
@@ -27,5 +29,8 @@ public void onCreate() {
         _refWatcher = LeakCanary.install(this);
 
         Timber.plant(new Timber.DebugTree());
+
+        //volley init
+        MyVolley.init(this);
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 030e9503..05efda07 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -7,11 +7,13 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
 public class MainFragment
       extends BaseFragment {
 
@@ -80,6 +82,11 @@ void demoRotationPersist() {
         //clickedOn(new RotationPersist1Fragment());
     }
 
+    @OnClick(R.id.btn_demo_volley)
+    void demoVolleyRequest() {
+        clickedOn(new VolleyDemoFragment());
+    }
+
     private void clickedOn(@NonNull Fragment fragment) {
         final String tag = fragment.getClass().toString();
         getActivity().getSupportFragmentManager()
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java
new file mode 100644
index 00000000..a37f1810
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java
@@ -0,0 +1,189 @@
+package com.morihacky.android.rxjava.fragments;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.support.annotation.Nullable;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ListView;
+
+import com.android.volley.Request;
+import com.android.volley.VolleyError;
+import com.android.volley.toolbox.JsonObjectRequest;
+import com.android.volley.toolbox.RequestFuture;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.wiring.LogAdapter;
+import com.morihacky.android.rxjava.wiring.MyVolley;
+
+import org.json.JSONObject;
+
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import rx.Observable;
+import rx.Observer;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func0;
+import rx.schedulers.Schedulers;
+import rx.subscriptions.CompositeSubscription;
+import timber.log.Timber;
+
+/**
+ * Created by zhangxitao on 15/12/30.
+ */
+
+public class VolleyDemoFragment
+        extends BaseFragment {
+    public static final String TAG = "VolleyDemoFragment";
+
+    @Bind(R.id.list_threading_log)
+    ListView _logsList;
+    @Bind(R.id.btn_start_operation)
+    Button _tapBtn;
+
+    private LogAdapter _adapter;
+    private List<String> _logs;
+
+    private CompositeSubscription mCompositeSubscription = new CompositeSubscription();
+
+    @OnClick(R.id.btn_start_operation)
+    void startRequest() {
+        startVolleyRequest();
+    }
+
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        /**
+         * @condition: RxJava future request with volley
+         */
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        mCompositeSubscription.unsubscribe();
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_volley, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
+    }
+
+    private void startVolleyRequest() {
+        mCompositeSubscription.add(newGetRouteData()
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(new Observer<JSONObject>() {
+                    @Override
+                    public void onCompleted() {
+                        Log.e(TAG, "onCompleted");
+                        Timber.d("----- onCompleted");
+                        _log("onCompleted ");
+                    }
+
+                    @Override
+                    public void onError(Throwable e) {
+                        VolleyError cause = (VolleyError) e.getCause();
+                        String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
+                        Log.e(TAG, s);
+                        Log.e(TAG, cause.toString());
+                        _log("onError " + s);
+
+                    }
+
+                    @Override
+                    public void onNext(JSONObject jsonObject) {
+                        Log.e(TAG, "onNext " + jsonObject.toString());
+                        _log("onNext " + jsonObject.toString());
+
+                    }
+                }));
+    }
+
+
+    /**
+     * @use handle response from future request, in my case JsonObject.
+     */
+    private JSONObject getRouteData() throws ExecutionException, InterruptedException {
+        RequestFuture<JSONObject> future = RequestFuture.newFuture();
+        String url = "http://www.weather.com.cn/adat/sk/101010100.html";
+        final Request.Priority priority = Request.Priority.IMMEDIATE;
+        JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, url, future, future);
+        MyVolley.getRequestQueue().add(req);
+        return future.get();
+    }
+
+    /**
+     * @use the observable, same type data Jsob Object
+     */
+    public Observable<JSONObject> newGetRouteData() {
+        return Observable.defer(new Func0<Observable<JSONObject>>() {
+            @Override
+            public Observable<JSONObject> call() {
+                Exception exception;
+                try {
+                    return Observable.just(getRouteData());
+                } catch (InterruptedException | ExecutionException e) {
+                    Log.e("routes", e.getMessage());
+                    return Observable.error(e);
+                }
+            }
+        });
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Methods that help wiring up the example (irrelevant to RxJava)
+
+    private void _setupLogger() {
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logsList.setAdapter(_adapter);
+    }
+
+    private void _log(String logMsg) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ");
+            _adapter.clear();
+            _adapter.addAll(_logs);
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(new Runnable() {
+
+                @Override
+                public void run() {
+                    _adapter.clear();
+                    _adapter.addAll(_logs);
+                }
+            });
+        }
+    }
+
+    private boolean _isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java b/app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java
new file mode 100644
index 00000000..9f2a2534
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java
@@ -0,0 +1,63 @@
+package com.morihacky.android.rxjava.wiring;
+
+/**
+ * Created by zhangxitao on 15/9/7.
+ */
+
+import android.app.ActivityManager;
+import android.content.Context;
+
+import com.android.volley.RequestQueue;
+import com.android.volley.toolbox.ImageLoader;
+import com.android.volley.toolbox.Volley;
+
+/**
+ * Helper class that is used to provide references to initialized RequestQueue(s) and ImageLoader(s)
+ *
+ * @author Ognyan Bankov
+ */
+public class MyVolley {
+    private static RequestQueue mRequestQueue;
+    private static ImageLoader mImageLoader;
+
+
+    private MyVolley() {
+        // no instances
+    }
+
+
+    public static void init(Context context) {
+        mRequestQueue = Volley.newRequestQueue(context);
+
+        int memClass = ((ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE))
+                .getMemoryClass();
+        // Use 1/8th of the available memory for this memory cache.
+        int cacheSize = 1024 * 1024 * memClass / 8;
+//        mImageLoader = new ImageLoader(mRequestQueue, new BitmapLruCache(cacheSize));
+    }
+
+
+    public static RequestQueue getRequestQueue() {
+        if (mRequestQueue != null) {
+            return mRequestQueue;
+        } else {
+            throw new IllegalStateException("RequestQueue not initialized");
+        }
+    }
+
+
+    /**
+     * Returns instance of ImageLoader initialized with {@see FakeImageCache} which effectively means
+     * that no memory caching is used. This is useful for images that you know that will be show
+     * only once.
+     *
+     * @return
+     */
+    public static ImageLoader getImageLoader() {
+        if (mImageLoader != null) {
+            return mImageLoader;
+        } else {
+            throw new IllegalStateException("ImageLoader not initialized");
+        }
+    }
+}
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 0f06a098..aba0cd1d 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -100,5 +100,11 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_rotation_persist"
             />
+        <Button
+            android:id="@+id/btn_demo_volley"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_volley"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_volley.xml b/app/src/main/res/layout/fragment_volley.xml
new file mode 100644
index 00000000..299d973c
--- /dev/null
+++ b/app/src/main/res/layout/fragment_volley.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    android:orientation="vertical"
+    android:layout_height="match_parent"
+    android:layout_width="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    >
+
+    <TextView
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:gravity="center"
+        android:text="@string/msg_demo_volley"
+        />
+
+    <Button
+        android:id="@+id/btn_start_operation"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:layout_marginLeft="90dp"
+        android:layout_marginRight="90dp"
+        android:textSize="16dp"
+        android:text="tap me"
+        />
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        />
+
+</LinearLayout>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 463b79d9..e3dda17b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -19,7 +19,8 @@
     <string name="btn_demo_timing">Variations of timing/intervals/delays</string>
     <string name="btn_demo_exponential_backoff">Exponential backoff</string>
     <string name="btn_demo_rotation_persist">Rotation persist</string>
-
+    <string name="btn_demo_volley">Volley request demo</string>
+    <string name="msg_demo_volley">This is a Volley request demo</string>
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>
     <string name="msg_demo_debounce">As you type in the input box, it will not shoot out log messages at every single input character change, but rather only pick the last one.</string>

From 1844f724c72bffc9c22ed219ccb71bf28f83e633 Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Sat, 2 Jan 2016 18:16:44 +1100
Subject: [PATCH 130/260] fix: RetrofitFragment "Log with User Info:" button
 uses correct editText's

---
 .../rxjava/fragments/RetrofitFragment.java    | 191 +++++++++---------
 1 file changed, 96 insertions(+), 95 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 6092db92..31e1c129 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -37,8 +37,10 @@
 public class RetrofitFragment
       extends Fragment {
 
-    @Bind(R.id.demo_retrofit_contributors_username) EditText _username;
-    @Bind(R.id.demo_retrofit_contributors_repository) EditText _repo;
+    @Bind(R.id.demo_retrofit_contributors_username) EditText _contributorsUsername;
+    @Bind(R.id.demo_retrofit_contributors_repository) EditText _contributorsRepo;
+    @Bind(R.id.demo_retrofit_contributors_with_user_info_username) EditText _userInfoUsername;
+    @Bind(R.id.demo_retrofit_contributors_with_user_info_repository) EditText _userInfoRepo;
     @Bind(R.id.log_list) ListView _resultList;
 
     private GithubApi _api;
@@ -87,106 +89,105 @@ public void onListContributorsClicked() {
         _adapter.clear();
 
         _subscriptions.add(//
-              _api.contributors(_username.getText().toString(), _repo.getText().toString())
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe(new Observer<List<Contributor>>() {
-                        @Override
-                        public void onCompleted() {
-                            Timber.d("Retrofit call 1 completed");
-                        }
-
-                        @Override
-                        public void onError(Throwable e) {
-                            Timber.e(e,
-                                  "woops we got an error while getting the list of contributors");
-                        }
-
-                        @Override
-                        public void onNext(List<Contributor> contributors) {
-                            for (Contributor c : contributors) {
-                                _adapter.add(format("%s has made %d contributions to %s",
-                                      c.login,
-                                      c.contributions,
-                                      _repo.getText().toString()));
-
-                                Timber.d("%s has made %d contributions to %s",
-                                      c.login,
-                                      c.contributions,
-                                      _repo.getText().toString());
+                _api.contributors(_contributorsUsername.getText().toString(), _contributorsRepo.getText().toString())
+                        .subscribeOn(Schedulers.io())
+                        .observeOn(AndroidSchedulers.mainThread())
+                        .subscribe(new Observer<List<Contributor>>() {
+                            @Override
+                            public void onCompleted() {
+                                Timber.d("Retrofit call 1 completed");
                             }
-                        }
-                    }));
+
+                            @Override
+                            public void onError(Throwable e) {
+                                Timber.e(e,
+                                        "woops we got an error while getting the list of contributors");
+                            }
+
+                            @Override
+                            public void onNext(List<Contributor> contributors) {
+                                for (Contributor c : contributors) {
+                                    _adapter.add(format("%s has made %d contributions to %s",
+                                            c.login,
+                                            c.contributions,
+                                            _contributorsRepo.getText().toString()));
+
+                                    Timber.d("%s has made %d contributions to %s",
+                                            c.login,
+                                            c.contributions,
+                                            _contributorsRepo.getText().toString());
+                                }
+                            }
+                        }));
     }
 
     @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
     public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
-        _subscriptions.add(_api.contributors(_username.getText().toString(),
-              _repo.getText().toString())
-              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                  @Override
-                  public Observable<Contributor> call(List<Contributor> contributors) {
-                      return Observable.from(contributors);
-                  }
-              })
-              .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
-                  @Override
-                  public Observable<Pair<User, Contributor>> call(Contributor contributor) {
-                      Observable<User> _userObservable = _api.user(contributor.login)
-                            .filter(new Func1<User, Boolean>() {
-                                @Override
-                                public Boolean call(User user) {
-                                    return !isEmpty(user.name) && !isEmpty(user.email);
-                                }
-                            });
-
-                      return Observable.zip(_userObservable,
-                            Observable.just(contributor),
-                            new Func2<User, Contributor, Pair<User, Contributor>>() {
-                                @Override
-                                public Pair<User, Contributor> call(User user,
-                                                                    Contributor contributor) {
-                                    return new Pair<>(user, contributor);
-                                }
-                            });
-                  }
-              })
-              .subscribeOn(Schedulers.newThread())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<Pair<User, Contributor>>() {
-                  @Override
-                  public void onCompleted() {
-                      Timber.d("Retrofit call 2 completed ");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e,
-                            "error while getting the list of contributors along with full names");
-                  }
-
-                  @Override
-                  public void onNext(Pair<User, Contributor> pair) {
-                      User user = pair.first;
-                      Contributor contributor = pair.second;
-
-                      _adapter.add(format("%s(%s) has made %d contributions to %s",
-                            user.name,
-                            user.email,
-                            contributor.contributions,
-                            _repo.getText().toString()));
-
-                      _adapter.notifyDataSetChanged();
-
-                      Timber.d("%s(%s) has made %d contributions to %s",
-                            user.name,
-                            user.email,
-                            contributor.contributions,
-                            _repo.getText().toString());
-                  }
-              }));
+        _subscriptions.add(_api.contributors(_userInfoUsername.getText().toString(), _userInfoRepo.getText().toString())
+                .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                    @Override
+                    public Observable<Contributor> call(List<Contributor> contributors) {
+                        return Observable.from(contributors);
+                    }
+                })
+                .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
+                    @Override
+                    public Observable<Pair<User, Contributor>> call(Contributor contributor) {
+                        Observable<User> _userObservable = _api.user(contributor.login)
+                                .filter(new Func1<User, Boolean>() {
+                                    @Override
+                                    public Boolean call(User user) {
+                                        return !isEmpty(user.name) && !isEmpty(user.email);
+                                    }
+                                });
+
+                        return Observable.zip(_userObservable,
+                                Observable.just(contributor),
+                                new Func2<User, Contributor, Pair<User, Contributor>>() {
+                                    @Override
+                                    public Pair<User, Contributor> call(User user,
+                                                                        Contributor contributor) {
+                                        return new Pair<>(user, contributor);
+                                    }
+                                });
+                    }
+                })
+                .subscribeOn(Schedulers.newThread())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(new Observer<Pair<User, Contributor>>() {
+                    @Override
+                    public void onCompleted() {
+                        Timber.d("Retrofit call 2 completed ");
+                    }
+
+                    @Override
+                    public void onError(Throwable e) {
+                        Timber.e(e,
+                                "error while getting the list of contributors along with full names");
+                    }
+
+                    @Override
+                    public void onNext(Pair<User, Contributor> pair) {
+                        User user = pair.first;
+                        Contributor contributor = pair.second;
+
+                        _adapter.add(format("%s(%s) has made %d contributions to %s",
+                                user.name,
+                                user.email,
+                                contributor.contributions,
+                                _contributorsRepo.getText().toString()));
+
+                        _adapter.notifyDataSetChanged();
+
+                        Timber.d("%s(%s) has made %d contributions to %s",
+                                user.name,
+                                user.email,
+                                contributor.contributions,
+                                _contributorsRepo.getText().toString());
+                    }
+                }));
     }
 
     // -----------------------------------------------------------------------------------

From a0c5f1323ac3662bd2cbb7d0f022aa9ae821c17b Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Mon, 4 Jan 2016 00:42:28 +1100
Subject: [PATCH 131/260] fix: PseudoCacheMergeFragment _subscription was never
 been assigned

---
 .../android/rxjava/fragments/PseudoCacheMergeFragment.java      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 43344775..3e95bc8b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -67,7 +67,7 @@ public void onDemoPseudoCacheClicked() {
         _resultList.setAdapter(_adapter);
         _initializeCache();
 
-        Observable.merge(_getCachedData(), _getFreshData())
+        _subscription = Observable.merge(_getCachedData(), _getFreshData())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Subscriber<Pair<Contributor, Long>>() {
                   @Override

From b77433fcfa7e713baa6332014545c3f5dda3619a Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Tue, 5 Jan 2016 09:09:10 +1100
Subject: [PATCH 132/260] fix: replaced deprecated timer call with interval

---
 .../morihacky/android/rxjava/fragments/TimingDemoFragment.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index cd0ae184..35a52aaa 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -118,7 +118,7 @@ public void Btn3_RunTask_IntervalOf1s_StartImmediately() {
         _log(String.format("C3 [%s] --- BTN click", _getCurrentTimestamp()));
 
         _subscription2 = Observable//
-              .timer(0, 1, TimeUnit.SECONDS)//
+              .interval(0, 1, TimeUnit.SECONDS)//
               .subscribe(new Observer<Long>() {
                   @Override
                   public void onCompleted() {

From e42ee1e82538be06d2fbd83baf1ca4dced850d2b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 17 Jan 2016 12:11:48 -0800
Subject: [PATCH 133/260] chore: upgrade ButterKnife 5.1.1 -> 7.0.1

cause why not.
---
 app/build.gradle                                 |  2 +-
 .../rxjava/fragments/BufferDemoFragment.java     | 13 ++++++++-----
 .../ConcurrencyWithSchedulersDemoFragment.java   | 15 +++++++++------
 .../fragments/DebounceSearchEmitterFragment.java | 15 +++++++++------
 .../fragments/DoubleBindingTextViewFragment.java | 14 ++++++++------
 .../fragments/ExponentialBackoffFragment.java    | 13 ++++++++-----
 .../FormValidationCombineLatestFragment.java     | 16 +++++++++-------
 .../android/rxjava/fragments/MainFragment.java   |  8 +++++---
 .../rxjava/fragments/PollingFragment.java        | 13 ++++++++-----
 .../fragments/PseudoCacheConcatFragment.java     | 11 ++++++-----
 .../fragments/PseudoCacheMergeFragment.java      | 11 ++++++-----
 .../RetrofitAsyncTaskDeathFragment.java          | 13 +++++++------
 .../rxjava/fragments/RetrofitFragment.java       | 10 +++++-----
 .../fragments/RotationPersist1Fragment.java      | 13 ++++++++-----
 .../fragments/RotationPersist2Fragment.java      | 13 ++++++++-----
 .../rxjava/fragments/TimeoutDemoFragment.java    | 13 ++++++++-----
 .../rxjava/fragments/TimingDemoFragment.java     | 13 ++++++++-----
 .../android/rxjava/rxbus/RxBusDemoFragment.java  |  2 +-
 .../rxjava/rxbus/RxBusDemo_Bottom1Fragment.java  | 10 ++++++----
 .../rxjava/rxbus/RxBusDemo_Bottom2Fragment.java  | 13 ++++++++-----
 .../rxjava/rxbus/RxBusDemo_Bottom3Fragment.java  | 13 ++++++++-----
 .../rxjava/rxbus/RxBusDemo_TopFragment.java      |  2 +-
 22 files changed, 145 insertions(+), 101 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index f1ec5bd0..b0fe7b27 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,7 +10,7 @@ dependencies {
     compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
 
-    compile 'com.jakewharton:butterknife:5.1.1'
+    compile 'com.jakewharton:butterknife:7.0.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile 'com.squareup.retrofit:retrofit:2.0.0-beta1'
     compile 'com.squareup.retrofit:adapter-rxjava:2.0.0-beta1'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 6a91aec5..04df144d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -9,15 +9,18 @@
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
+
 import com.jakewharton.rxbinding.view.RxView;
 import com.jakewharton.rxbinding.view.ViewClickEvent;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
@@ -41,8 +44,8 @@
 public class BufferDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-    @InjectView(R.id.btn_start_operation) Button _tapBtn;
+    @Bind(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.btn_start_operation) Button _tapBtn;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -72,7 +75,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index 292827ca..9d630603 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -11,12 +11,15 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
+
 import java.util.ArrayList;
 import java.util.List;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
@@ -28,8 +31,8 @@
 public class ConcurrencyWithSchedulersDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.progress_operation_running) ProgressBar _progress;
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.progress_operation_running) ProgressBar _progress;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -54,7 +57,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 139a654d..4967364f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -11,15 +11,18 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
 import com.morihacky.android.rxjava.R;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
@@ -30,8 +33,8 @@
 public class DebounceSearchEmitterFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
-    @InjectView(R.id.input_txt_debounce) EditText _inputSearchText;
+    @Bind(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.input_txt_debounce) EditText _inputSearchText;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -51,7 +54,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_debounce, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index fe305d77..25b491a4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -7,10 +7,12 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
+
+import com.morihacky.android.rxjava.R;
+
+import butterknife.Bind;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
 import butterknife.OnTextChanged;
-import com.morihacky.android.rxjava.R;
 import rx.Subscription;
 import rx.functions.Action1;
 import rx.subjects.PublishSubject;
@@ -20,9 +22,9 @@
 public class DoubleBindingTextViewFragment
       extends BaseFragment {
 
-    @InjectView(R.id.double_binding_num1) EditText _number1;
-    @InjectView(R.id.double_binding_num2) EditText _number2;
-    @InjectView(R.id.double_binding_result) TextView _result;
+    @Bind(R.id.double_binding_num1) EditText _number1;
+    @Bind(R.id.double_binding_num2) EditText _number2;
+    @Bind(R.id.double_binding_result) TextView _result;
 
     Subscription _subscription;
     PublishSubject<Float> _resultEmitterSubject;
@@ -32,7 +34,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _resultEmitterSubject = PublishSubject.create();
         _subscription = _resultEmitterSubject.asObservable().subscribe(new Action1<Float>() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index df860315..a9e9a194 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -7,15 +7,18 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.functions.Action0;
@@ -29,7 +32,7 @@
 public class ExponentialBackoffFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logList;
+    @Bind(R.id.list_threading_log) ListView _logList;
     private LogAdapter _adapter;
     private List<String> _logs;
 
@@ -52,7 +55,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_exponential_backoff, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index fa389b25..3a655888 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -7,10 +7,12 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
+
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
@@ -23,10 +25,10 @@
 public class FormValidationCombineLatestFragment
       extends BaseFragment {
 
-    @InjectView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
-    @InjectView(R.id.demo_combl_email) EditText _email;
-    @InjectView(R.id.demo_combl_password) EditText _password;
-    @InjectView(R.id.demo_combl_num) EditText _number;
+    @Bind(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
+    @Bind(R.id.demo_combl_email) EditText _email;
+    @Bind(R.id.demo_combl_password) EditText _password;
+    @Bind(R.id.demo_combl_num) EditText _number;
 
     private Observable<CharSequence> _emailChangeObservable;
     private Observable<CharSequence> _passwordChangeObservable;
@@ -41,7 +43,7 @@ public View onCreateView(LayoutInflater inflater,
         View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest,
               container,
               false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _emailChangeObservable = RxTextView.textChanges(_email).skip(1);
         _passwordChangeObservable = RxTextView.textChanges(_password).skip(1);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index d271bc3b..d729d793 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -7,11 +7,13 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
 public class MainFragment
       extends BaseFragment {
 
@@ -20,7 +22,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_main, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index fc52780a..c0a44571 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -10,13 +10,16 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
 import rx.functions.Action0;
@@ -30,7 +33,7 @@ public class PollingFragment
 
     public static final int INITIAL_DELAY = 0;
     public static final int POLLING_INTERVAL = 1000;
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -55,7 +58,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_polling, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index d06a8236..ba749f01 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -8,9 +8,7 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
@@ -27,6 +25,9 @@
 import retrofit.GsonConverterFactory;
 import retrofit.Retrofit;
 import retrofit.RxJavaCallAdapterFactory;
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
@@ -39,7 +40,7 @@
 public class PseudoCacheConcatFragment
       extends BaseFragment {
 
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private Subscription _subscription = null;
     private HashMap<String, Long> _contributionMap = null;
@@ -50,7 +51,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         _initializeCache();
         return layout;
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 720261ae..76940a75 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -9,9 +9,7 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
@@ -28,6 +26,9 @@
 import retrofit.GsonConverterFactory;
 import retrofit.Retrofit;
 import retrofit.RxJavaCallAdapterFactory;
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
@@ -41,7 +42,7 @@
 public class PseudoCacheMergeFragment
       extends BaseFragment {
 
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private Subscription _subscription = null;
     private HashMap<String, Long> _contributionMap = null;
@@ -53,7 +54,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         _initializeCache();
         return layout;
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 75b909ab..62dde562 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -11,9 +11,7 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.User;
@@ -28,6 +26,9 @@
 import retrofit.GsonConverterFactory;
 import retrofit.Retrofit;
 import retrofit.RxJavaCallAdapterFactory;
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
@@ -38,8 +39,8 @@
 public class RetrofitAsyncTaskDeathFragment
       extends Fragment {
 
-    @InjectView(R.id.btn_demo_retrofit_async_death_username) EditText _username;
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.btn_demo_retrofit_async_death_username) EditText _username;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private GithubApi _api;
     private ArrayAdapter<String> _adapter;
@@ -58,7 +59,7 @@ public View onCreateView(LayoutInflater inflater,
         View layout = inflater.inflate(R.layout.fragment_retrofit_async_task_death,
               container,
               false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 6727654a..eafa3b03 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -26,8 +26,8 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import butterknife.Bind;
 import butterknife.ButterKnife;
-import butterknife.InjectView;
 import butterknife.OnClick;
 import retrofit.GsonConverterFactory;
 import retrofit.Retrofit;
@@ -47,9 +47,9 @@
 public class RetrofitFragment
       extends Fragment {
 
-    @InjectView(R.id.demo_retrofit_contributors_username) EditText _username;
-    @InjectView(R.id.demo_retrofit_contributors_repository) EditText _repo;
-    @InjectView(R.id.log_list) ListView _resultList;
+    @Bind(R.id.demo_retrofit_contributors_username) EditText _username;
+    @Bind(R.id.demo_retrofit_contributors_repository) EditText _repo;
+    @Bind(R.id.log_list) ListView _resultList;
 
     private GithubApi _api;
     private ArrayAdapter<String> _adapter;
@@ -80,7 +80,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable Bundle savedInstanceState) {
 
         View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
 
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 54a7d14c..31344672 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -8,14 +8,17 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observer;
 import rx.functions.Action0;
 import rx.observables.ConnectableObservable;
@@ -30,7 +33,7 @@ public class RotationPersist1Fragment
 
     public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
 
-    @InjectView(R.id.list_threading_log) ListView _logList;
+    @Bind(R.id.list_threading_log) ListView _logList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -106,7 +109,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index 49e7128e..6c84392d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -8,14 +8,17 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.functions.Action0;
@@ -30,7 +33,7 @@ public class RotationPersist2Fragment
 
     public static final String FRAG_TAG = RotationPersist2WorkerFragment.class.getName();
 
-    @InjectView(R.id.list_threading_log) ListView _logList;
+    @Bind(R.id.list_threading_log) ListView _logList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -105,7 +108,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index bebfbe16..1c526595 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -8,14 +8,17 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscriber;
@@ -27,7 +30,7 @@
 public class TimeoutDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -51,7 +54,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 68d3b16c..0a5075d0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -7,16 +7,19 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
@@ -28,7 +31,7 @@
 public class TimingDemoFragment
       extends BaseFragment {
 
-    @InjectView(R.id.list_threading_log) ListView _logsList;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
@@ -47,7 +50,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_demo_timing, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index ad1ad6ff..8eac88b7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -17,7 +17,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 7b7308fc..975f8ce7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -7,18 +7,20 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
+
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
 public class RxBusDemo_Bottom1Fragment
       extends BaseFragment {
 
-    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
     private RxBus _rxBus;
     private CompositeSubscription _subscriptions;
 
@@ -27,7 +29,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 3098ecc3..b84a6328 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -7,13 +7,16 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
+
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
+
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Action1;
@@ -22,8 +25,8 @@
 public class RxBusDemo_Bottom2Fragment
       extends BaseFragment {
 
-    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
     private RxBus _rxBus;
     private CompositeSubscription _subscriptions;
 
@@ -32,7 +35,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index 2f75f165..b956d58b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -7,13 +7,16 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-import butterknife.ButterKnife;
-import butterknife.InjectView;
+
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
+
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Action1;
@@ -24,8 +27,8 @@
 public class RxBusDemo_Bottom3Fragment
       extends BaseFragment {
 
-    @InjectView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @InjectView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
     private RxBus _rxBus;
     private CompositeSubscription _subscriptions;
 
@@ -34,7 +37,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index 568244ca..bab619fd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -21,7 +21,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
-        ButterKnife.inject(this, layout);
+        ButterKnife.bind(this, layout);
         return layout;
     }
 

From 4da0d72c09ad889d935816fcfbb5747ecf76f9c3 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 17 Jan 2016 12:24:51 -0800
Subject: [PATCH 134/260] chore: upgrade to retrofit 2.beta 3 + okhttp 3.0.1
 while we're at it

---
 app/build.gradle | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b0fe7b27..3bde6c9b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -12,11 +12,11 @@ dependencies {
 
     compile 'com.jakewharton:butterknife:7.0.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'com.squareup.retrofit:retrofit:2.0.0-beta1'
-    compile 'com.squareup.retrofit:adapter-rxjava:2.0.0-beta1'
-    compile 'com.squareup.retrofit:converter-gson:2.0.0-beta1'
-    compile 'com.squareup.okhttp:okhttp:2.0.0'
-    compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
+    compile 'com.squareup.retrofit2:retrofit:2.0.0-beta3'
+    compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta3'
+    compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta3'
+    compile 'com.squareup.okhttp3:okhttp:3.0.1'
+    compile 'com.squareup.okhttp3:okhttp-urlconnection:3.0.1'
 
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
     releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'

From 0b8efacefbc117510711a3255fae9c4b12f72932 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 17 Jan 2016 12:25:17 -0800
Subject: [PATCH 135/260] ref: abstract creation of GithubService

cause we're doing this in more than one place now
---
 .../rxjava/retrofit/GithubService.java        | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
new file mode 100644
index 00000000..021faa07
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
@@ -0,0 +1,43 @@
+package com.morihacky.android.rxjava.retrofit;
+
+import android.text.TextUtils;
+
+import java.io.IOException;
+
+import okhttp3.Interceptor;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import retrofit2.GsonConverterFactory;
+import retrofit2.Retrofit;
+import retrofit2.RxJavaCallAdapterFactory;
+
+import static java.lang.String.format;
+
+public class GithubService {
+
+    private GithubService() { }
+
+    public static GithubApi createGithubService(final String githubToken) {
+        Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .baseUrl("https://api.github.com");
+
+        if (!TextUtils.isEmpty(githubToken)) {
+
+            OkHttpClient client = new OkHttpClient.Builder().addInterceptor(new Interceptor() {
+                @Override public Response intercept(Chain chain) throws IOException {
+                    Request request = chain.request();
+                    Request newReq = request.newBuilder()
+                            .addHeader("Authorization", format("token %s", githubToken))
+                            .build();
+                    return chain.proceed(newReq);
+                }
+            }).build();
+
+            builder.client(client);
+        }
+
+        return builder.build().create(GithubApi.class);
+    }
+}

From d21e1cfaf85a40d3a7e3923fc3c7c0b7e598cf8a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 17 Jan 2016 12:26:03 -0800
Subject: [PATCH 136/260] fix: api changes due to upgrade + abstraction of
 github service

---
 .../fragments/PseudoCacheConcatFragment.java  |  42 +--
 .../fragments/PseudoCacheMergeFragment.java   |  69 +----
 .../RetrofitAsyncTaskDeathFragment.java       |  51 +---
 .../rxjava/fragments/RetrofitFragment.java    | 262 ++++++++----------
 .../android/rxjava/retrofit/GithubApi.java    |   5 +-
 5 files changed, 138 insertions(+), 291 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index ba749f01..7e460a44 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -2,7 +2,6 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -12,19 +11,12 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
-import com.squareup.okhttp.Interceptor;
-import com.squareup.okhttp.OkHttpClient;
-import com.squareup.okhttp.Request;
-import com.squareup.okhttp.Response;
+import com.morihacky.android.rxjava.retrofit.GithubService;
 
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 
-import retrofit.GsonConverterFactory;
-import retrofit.Retrofit;
-import retrofit.RxJavaCallAdapterFactory;
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
@@ -35,8 +27,6 @@
 import rx.functions.Func1;
 import timber.log.Timber;
 
-import static java.lang.String.format;
-
 public class PseudoCacheConcatFragment
       extends BaseFragment {
 
@@ -122,7 +112,9 @@ private Observable<Contributor> _getCachedData() {
     }
 
     private Observable<Contributor> _getFreshData() {
-        return _createGithubApi().contributors("square", "retrofit")
+        String githubToken = getResources().getString(R.string.github_oauth_token);
+        GithubApi githubService = GithubService.createGithubService(githubToken);
+        return githubService.contributors("square", "retrofit")
               .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
                   @Override
                   public Observable<Contributor> call(List<Contributor> contributors) {
@@ -131,32 +123,6 @@ public Observable<Contributor> call(List<Contributor> contributors) {
               });
     }
 
-    private GithubApi _createGithubApi() {
-        Retrofit.Builder builder =new Retrofit.Builder()
-                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
-                .addConverterFactory(GsonConverterFactory.create())
-                .baseUrl("https://api.github.com");
-
-        final String githubToken = getResources().getString(R.string.github_oauth_token);
-
-        if (!TextUtils.isEmpty(githubToken)) {
-            OkHttpClient client = new OkHttpClient();
-            client.interceptors().add(new Interceptor() {
-                @Override
-                public Response intercept(Chain chain) throws IOException {
-                    Request request = chain.request();
-                    Request newReq = request.newBuilder()
-                            .addHeader("Authorization", format("token %s", githubToken))
-                            .build();
-                    return chain.proceed(newReq);
-                }
-            });
-            builder.client(client);
-        }
-
-        return builder.build().create(GithubApi.class);
-    }
-
     private void _initializeCache() {
         _contributionMap = new HashMap<>();
         _contributionMap.put("JakeWharton", 0l);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 76940a75..777ff3ae 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -2,57 +2,43 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.text.TextUtils;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
-import com.squareup.okhttp.Interceptor;
-import com.squareup.okhttp.OkHttpClient;
-import com.squareup.okhttp.Request;
-import com.squareup.okhttp.Response;
-
-import java.io.IOException;
+import com.morihacky.android.rxjava.retrofit.GithubService;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-
-import retrofit.GsonConverterFactory;
-import retrofit.Retrofit;
-import retrofit.RxJavaCallAdapterFactory;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Func1;
+import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
-import static android.text.TextUtils.isEmpty;
-import static java.lang.String.format;
-
 public class PseudoCacheMergeFragment
       extends BaseFragment {
 
     @Bind(R.id.log_list) ListView _resultList;
-
-    private Subscription _subscription = null;
+    private ArrayAdapter<String> _adapter;
     private HashMap<String, Long> _contributionMap = null;
     private HashMap<Contributor, Long> _resultAgeMap = new HashMap<>();
-    private ArrayAdapter<String> _adapter;
+    private Subscription _subscription = null;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
+          @Nullable ViewGroup container,
+          @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
         ButterKnife.bind(this, layout);
         _initializeCache();
@@ -69,15 +55,13 @@ public void onPause() {
 
     @OnClick(R.id.btn_start_pseudo_cache)
     public void onDemoPseudoCacheClicked() {
-        _adapter = new ArrayAdapter<>(getActivity(),
-              R.layout.item_log,
-              R.id.item_log,
-              new ArrayList<String>());
+        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
 
         _resultList.setAdapter(_adapter);
         _initializeCache();
 
         Observable.merge(_getCachedData(), _getFreshData())
+              .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Subscriber<Pair<Contributor, Long>>() {
                   @Override
@@ -138,7 +122,10 @@ private Observable<Pair<Contributor, Long>> _getCachedData() {
     }
 
     private Observable<Pair<Contributor, Long>> _getFreshData() {
-        return _createGithubApi().contributors("square", "retrofit")
+        String githubToken = getResources().getString(R.string.github_oauth_token);
+        GithubApi githubService = GithubService.createGithubService(githubToken);
+
+        return githubService.contributors("square", "retrofit")
               .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
                   @Override
                   public Observable<Contributor> call(List<Contributor> contributors) {
@@ -153,32 +140,6 @@ public Pair<Contributor, Long> call(Contributor contributor) {
               });
     }
 
-    private GithubApi _createGithubApi() {
-        Retrofit.Builder builder = new Retrofit.Builder()
-                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
-                .addConverterFactory(GsonConverterFactory.create())
-                .baseUrl("https://api.github.com");
-
-        final String githubToken = getResources().getString(R.string.github_oauth_token);
-
-        if (!TextUtils.isEmpty(githubToken)) {
-            OkHttpClient client = new OkHttpClient();
-            client.interceptors().add(new Interceptor() {
-                @Override
-                public Response intercept(Chain chain) throws IOException {
-                    Request request = chain.request();
-                    Request newReq = request.newBuilder()
-                            .addHeader("Authorization", format("token %s", githubToken))
-                            .build();
-                    return chain.proceed(newReq);
-                }
-            });
-            builder.client(client);
-        }
-
-        return builder.build().create(GithubApi.class);
-    }
-
     private void _initializeCache() {
         _contributionMap = new HashMap<>();
         _contributionMap.put("JakeWharton", 0l);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 62dde562..a8ff66a1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -4,7 +4,6 @@
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
-import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -14,18 +13,11 @@
 
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.morihacky.android.rxjava.retrofit.GithubService;
 import com.morihacky.android.rxjava.retrofit.User;
-import com.squareup.okhttp.Interceptor;
-import com.squareup.okhttp.OkHttpClient;
-import com.squareup.okhttp.Request;
-import com.squareup.okhttp.Response;
 
-import java.io.IOException;
 import java.util.ArrayList;
 
-import retrofit.GsonConverterFactory;
-import retrofit.Retrofit;
-import retrofit.RxJavaCallAdapterFactory;
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
@@ -33,7 +25,6 @@
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 
-import static android.text.TextUtils.isEmpty;
 import static java.lang.String.format;
 
 public class RetrofitAsyncTaskDeathFragment
@@ -42,13 +33,15 @@ public class RetrofitAsyncTaskDeathFragment
     @Bind(R.id.btn_demo_retrofit_async_death_username) EditText _username;
     @Bind(R.id.log_list) ListView _resultList;
 
-    private GithubApi _api;
+    private GithubApi _githubService;
     private ArrayAdapter<String> _adapter;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        _api = _createGithubApi();
+
+        String githubToken = getResources().getString(R.string.github_oauth_token);
+        _githubService = GithubService.createGithubService(githubToken);
     }
 
     @Override
@@ -78,7 +71,7 @@ public void onGetGithubUserClicked() {
         /*new AsyncTask<String, Void, User>() {
             @Override
             protected User doInBackground(String... params) {
-                return _api.getUser(params[0]);
+                return _githubService.getUser(params[0]);
             }
 
             @Override
@@ -87,7 +80,7 @@ protected void onPostExecute(User user) {
             }
         }.execute(_username.getText().toString());*/
 
-        _api.user(_username.getText().toString())
+        _githubService.user(_username.getText().toString())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Observer<User>() {
@@ -111,40 +104,12 @@ public void onNext(User user) {
 
     // -----------------------------------------------------------------------------------
 
-    private GithubApi _createGithubApi() {
-        Retrofit.Builder builder = new Retrofit.Builder()
-                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
-                .addConverterFactory(GsonConverterFactory.create())
-                .baseUrl("https://api.github.com");
-
-        final String githubToken = getResources().getString(R.string.github_oauth_token);
-
-        if (!TextUtils.isEmpty(githubToken)) {
-            OkHttpClient client = new OkHttpClient();
-            client.interceptors().add(new Interceptor() {
-                @Override
-                public Response intercept(Chain chain) throws IOException {
-                    Request request = chain.request();
-                    Request newReq = request.newBuilder()
-                            .addHeader("Authorization", format("token %s", githubToken))
-                            .build();
-                    return chain.proceed(newReq);
-                }
-            });
-            builder.client(client);
-        }
-
-        return builder.build().create(GithubApi.class);
-    }
-
-    // -----------------------------------------------------------------------------------
-
     private class GetGithubUser
           extends AsyncTask<String, Void, User> {
 
         @Override
         protected User doInBackground(String... params) {
-            return _api.getUser(params[0]);
+            return _githubService.getUser(params[0]);
         }
 
         @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index eafa3b03..d06048de 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -1,19 +1,8 @@
 package com.morihacky.android.rxjava.fragments;
 
-import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
-import com.morihacky.android.rxjava.retrofit.Contributor;
-import com.morihacky.android.rxjava.retrofit.GithubApi;
-import com.morihacky.android.rxjava.retrofit.User;
-import com.squareup.okhttp.Interceptor;
-import com.squareup.okhttp.OkHttpClient;
-import com.squareup.okhttp.Request;
-import com.squareup.okhttp.Response;
-
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
-import android.text.TextUtils;
 import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -22,16 +11,19 @@
 import android.widget.EditText;
 import android.widget.ListView;
 
-import java.io.IOException;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
+import com.morihacky.android.rxjava.retrofit.Contributor;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.morihacky.android.rxjava.retrofit.GithubService;
+import com.morihacky.android.rxjava.retrofit.User;
+
 import java.util.ArrayList;
 import java.util.List;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import retrofit.GsonConverterFactory;
-import retrofit.Retrofit;
-import retrofit.RxJavaCallAdapterFactory;
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
@@ -45,30 +37,28 @@
 import static java.lang.String.format;
 
 public class RetrofitFragment
-      extends Fragment {
+        extends Fragment {
 
     @Bind(R.id.demo_retrofit_contributors_username) EditText _username;
     @Bind(R.id.demo_retrofit_contributors_repository) EditText _repo;
     @Bind(R.id.log_list) ListView _resultList;
 
-    private GithubApi _api;
+    private GithubApi _githubService;
     private ArrayAdapter<String> _adapter;
     private CompositeSubscription _subscriptions = new CompositeSubscription();
 
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
+    @Override public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        _api = _createGithubApi();
+        String githubToken = getResources().getString(R.string.github_oauth_token);
+        _githubService = GithubService.createGithubService(githubToken);
     }
 
-    @Override
-    public void onResume() {
+    @Override public void onResume() {
         super.onResume();
         _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
     }
 
-    @Override
-    public void onPause() {
+    @Override public void onPause() {
         super.onPause();
 
         RxUtils.unsubscribeIfNotNull(_subscriptions);
@@ -76,154 +66,118 @@ public void onPause() {
 
     @Override
     public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
+            @Nullable ViewGroup container,
+            @Nullable Bundle savedInstanceState) {
 
         View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
         ButterKnife.bind(this, layout);
 
-        _adapter = new ArrayAdapter<>(getActivity(),
-              R.layout.item_log,
-              R.id.item_log,
-              new ArrayList<String>());
+        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
         //_adapter.setNotifyOnChange(true);
         _resultList.setAdapter(_adapter);
 
         return layout;
     }
 
-    @OnClick(R.id.btn_demo_retrofit_contributors)
-    public void onListContributorsClicked() {
+    @OnClick(R.id.btn_demo_retrofit_contributors) public void onListContributorsClicked() {
         _adapter.clear();
 
         _subscriptions.add(//
-              _api.contributors(_username.getText().toString(), _repo.getText().toString())
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe(new Observer<List<Contributor>>() {
-                        @Override
-                        public void onCompleted() {
-                            Timber.d("Retrofit call 1 completed");
-                        }
-
-                        @Override
-                        public void onError(Throwable e) {
-                            Timber.e(e,
-                                  "woops we got an error while getting the list of contributors");
-                        }
-
-                        @Override
-                        public void onNext(List<Contributor> contributors) {
-                            for (Contributor c : contributors) {
-                                _adapter.add(format("%s has made %d contributions to %s",
-                                      c.login,
-                                      c.contributions,
-                                      _repo.getText().toString()));
-
-                                Timber.d("%s has made %d contributions to %s",
-                                      c.login,
-                                      c.contributions,
-                                      _repo.getText().toString());
-                            }
-                        }
-                    }));
+                           _githubService.contributors(_username.getText().toString(), _repo.getText().toString())
+                                   .subscribeOn(Schedulers.io())
+                                   .observeOn(AndroidSchedulers.mainThread())
+//                                   .unsubscribeOn(Schedulers.io())
+                                   // TODO: remove when https://github.com/square/okhttp/issues/1592 is fixed
+                                   .subscribe(new Observer<List<Contributor>>() {
+                                       @Override public void onCompleted() {
+                                           Timber.d("Retrofit call 1 completed");
+                                       }
+
+                                       @Override public void onError(Throwable e) {
+                                           Timber.e(e, "woops we got an error while getting the list of contributors");
+                                       }
+
+                                       @Override public void onNext(List<Contributor> contributors) {
+                                           for (Contributor c : contributors) {
+                                               _adapter.add(format("%s has made %d contributions to %s",
+                                                                   c.login,
+                                                                   c.contributions,
+                                                                   _repo.getText().toString()));
+
+                                               Timber.d("%s has made %d contributions to %s",
+                                                        c.login,
+                                                        c.contributions,
+                                                        _repo.getText().toString());
+                                           }
+                                       }
+                                   }));
     }
 
     @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
     public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
-        _subscriptions.add(_api.contributors(_username.getText().toString(),
-              _repo.getText().toString())
-              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                  @Override
-                  public Observable<Contributor> call(List<Contributor> contributors) {
-                      return Observable.from(contributors);
-                  }
-              })
-              .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
-                  @Override
-                  public Observable<Pair<User, Contributor>> call(Contributor contributor) {
-                      Observable<User> _userObservable = _api.user(contributor.login)
-                            .filter(new Func1<User, Boolean>() {
-                                @Override
-                                public Boolean call(User user) {
-                                    return !isEmpty(user.name) && !isEmpty(user.email);
-                                }
-                            });
-
-                      return Observable.zip(_userObservable,
-                            Observable.just(contributor),
-                            new Func2<User, Contributor, Pair<User, Contributor>>() {
-                                @Override
-                                public Pair<User, Contributor> call(User user,
-                                                                    Contributor contributor) {
-                                    return new Pair<>(user, contributor);
-                                }
-                            });
-                  }
-              })
-              .subscribeOn(Schedulers.newThread())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<Pair<User, Contributor>>() {
-                  @Override
-                  public void onCompleted() {
-                      Timber.d("Retrofit call 2 completed ");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e,
-                            "error while getting the list of contributors along with full names");
-                  }
-
-                  @Override
-                  public void onNext(Pair<User, Contributor> pair) {
-                      User user = pair.first;
-                      Contributor contributor = pair.second;
-
-                      _adapter.add(format("%s(%s) has made %d contributions to %s",
-                            user.name,
-                            user.email,
-                            contributor.contributions,
-                            _repo.getText().toString()));
-
-                      _adapter.notifyDataSetChanged();
-
-                      Timber.d("%s(%s) has made %d contributions to %s",
-                            user.name,
-                            user.email,
-                            contributor.contributions,
-                            _repo.getText().toString());
-                  }
-              }));
-    }
-
-    // -----------------------------------------------------------------------------------
-
-    private GithubApi _createGithubApi() {
-        Retrofit.Builder builder = new Retrofit.Builder()
-                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
-                .addConverterFactory(GsonConverterFactory.create())
-                .baseUrl("https://api.github.com");
-
-        final String githubToken = getResources().getString(R.string.github_oauth_token);
-
-        if (!TextUtils.isEmpty(githubToken)) {
-            OkHttpClient client = new OkHttpClient();
-            client.interceptors().add(new Interceptor() {
-                @Override
-                public Response intercept(Chain chain) throws IOException {
-                    Request request = chain.request();
-                    Request newReq = request.newBuilder()
-                            .addHeader("Authorization", format("token %s", githubToken))
-                            .build();
-                    return chain.proceed(newReq);
-                }
-            });
-            builder.client(client);
-        }
-
-        return builder.build().create(GithubApi.class);
+        _subscriptions.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
+                                   .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                                       @Override public Observable<Contributor> call(List<Contributor> contributors) {
+                                           return Observable.from(contributors);
+                                       }
+                                   })
+                                   .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
+                                       @Override
+                                       public Observable<Pair<User, Contributor>> call(Contributor contributor) {
+                                           Observable<User> _userObservable = _githubService.user(contributor.login)
+                                                   .filter(new Func1<User, Boolean>() {
+                                                       @Override public Boolean call(User user) {
+                                                           return !isEmpty(user.name) && !isEmpty(user.email);
+                                                       }
+                                                   });
+
+                                           return Observable.zip(_userObservable,
+                                                                 Observable.just(contributor),
+                                                                 new Func2<User, Contributor, Pair<User,
+                                                                         Contributor>>() {
+                                                                     @Override
+                                                                     public Pair<User, Contributor> call(User user,
+                                                                             Contributor contributor) {
+                                                                         return new Pair<>(user, contributor);
+                                                                     }
+                                                                 });
+                                       }
+                                   })
+                                   .subscribeOn(Schedulers.newThread())
+                                   .observeOn(AndroidSchedulers.mainThread())
+//                                   .unsubscribeOn(Schedulers.newThread())
+                                   // TODO: remove when https://github.com/square/okhttp/issues/1592 is fixed
+                                   .subscribe(new Observer<Pair<User, Contributor>>() {
+                                       @Override public void onCompleted() {
+                                           Timber.d("Retrofit call 2 completed ");
+                                       }
+
+                                       @Override public void onError(Throwable e) {
+                                           Timber.e(e,
+                                                    "error while getting the list of contributors along with full "
+                                                    + "names");
+                                       }
+
+                                       @Override public void onNext(Pair<User, Contributor> pair) {
+                                           User user = pair.first;
+                                           Contributor contributor = pair.second;
+
+                                           _adapter.add(format("%s(%s) has made %d contributions to %s",
+                                                               user.name,
+                                                               user.email,
+                                                               contributor.contributions,
+                                                               _repo.getText().toString()));
+
+                                           _adapter.notifyDataSetChanged();
+
+                                           Timber.d("%s(%s) has made %d contributions to %s",
+                                                    user.name,
+                                                    user.email,
+                                                    contributor.contributions,
+                                                    _repo.getText().toString());
+                                       }
+                                   }));
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
index 28ce3011..d65cd92a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -1,8 +1,9 @@
 package com.morihacky.android.rxjava.retrofit;
 
 import java.util.List;
-import retrofit.http.GET;
-import retrofit.http.Path;
+
+import retrofit2.http.GET;
+import retrofit2.http.Path;
 import rx.Observable;
 
 public interface GithubApi {

From ecbcd0e86146691e9d537bbc29391d4830c463ed Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 17 Jan 2016 12:39:29 -0800
Subject: [PATCH 137/260] fix: remove dead code/comment + reformat

---
 .../rxjava/fragments/RetrofitFragment.java    | 225 +++++++++---------
 1 file changed, 113 insertions(+), 112 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index d06048de..daf9a811 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -10,20 +10,17 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
 import com.morihacky.android.rxjava.retrofit.User;
-
 import java.util.ArrayList;
 import java.util.List;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
@@ -37,37 +34,27 @@
 import static java.lang.String.format;
 
 public class RetrofitFragment
-        extends Fragment {
+      extends Fragment {
 
     @Bind(R.id.demo_retrofit_contributors_username) EditText _username;
     @Bind(R.id.demo_retrofit_contributors_repository) EditText _repo;
     @Bind(R.id.log_list) ListView _resultList;
 
-    private GithubApi _githubService;
     private ArrayAdapter<String> _adapter;
+    private GithubApi _githubService;
     private CompositeSubscription _subscriptions = new CompositeSubscription();
 
-    @Override public void onCreate(Bundle savedInstanceState) {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         String githubToken = getResources().getString(R.string.github_oauth_token);
         _githubService = GithubService.createGithubService(githubToken);
     }
 
-    @Override public void onResume() {
-        super.onResume();
-        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
-    }
-
-    @Override public void onPause() {
-        super.onPause();
-
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
-    }
-
     @Override
     public View onCreateView(LayoutInflater inflater,
-            @Nullable ViewGroup container,
-            @Nullable Bundle savedInstanceState) {
+          @Nullable ViewGroup container,
+          @Nullable Bundle savedInstanceState) {
 
         View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
         ButterKnife.bind(this, layout);
@@ -79,38 +66,53 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
-    @OnClick(R.id.btn_demo_retrofit_contributors) public void onListContributorsClicked() {
+    @Override
+    public void onResume() {
+        super.onResume();
+        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+    }
+
+    @OnClick(R.id.btn_demo_retrofit_contributors)
+    public void onListContributorsClicked() {
         _adapter.clear();
 
         _subscriptions.add(//
-                           _githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-                                   .subscribeOn(Schedulers.io())
-                                   .observeOn(AndroidSchedulers.mainThread())
-//                                   .unsubscribeOn(Schedulers.io())
-                                   // TODO: remove when https://github.com/square/okhttp/issues/1592 is fixed
-                                   .subscribe(new Observer<List<Contributor>>() {
-                                       @Override public void onCompleted() {
-                                           Timber.d("Retrofit call 1 completed");
-                                       }
-
-                                       @Override public void onError(Throwable e) {
-                                           Timber.e(e, "woops we got an error while getting the list of contributors");
-                                       }
-
-                                       @Override public void onNext(List<Contributor> contributors) {
-                                           for (Contributor c : contributors) {
-                                               _adapter.add(format("%s has made %d contributions to %s",
-                                                                   c.login,
-                                                                   c.contributions,
-                                                                   _repo.getText().toString()));
-
-                                               Timber.d("%s has made %d contributions to %s",
-                                                        c.login,
-                                                        c.contributions,
-                                                        _repo.getText().toString());
-                                           }
-                                       }
-                                   }));
+              _githubService.contributors(_username.getText().toString(), _repo.getText().toString())
+                    .subscribeOn(Schedulers.io())
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .subscribe(new Observer<List<Contributor>>() {
+                        @Override
+                        public void onCompleted() {
+                            Timber.d("Retrofit call 1 completed");
+                        }
+
+                        @Override
+                        public void onError(Throwable e) {
+                            Timber.e(e, "woops we got an error while getting the list of contributors");
+                        }
+
+                        @Override
+                        public void onNext(List<Contributor> contributors) {
+                            for (Contributor c : contributors) {
+                                _adapter.add(format("%s has made %d contributions to %s",
+                                      c.login,
+                                      c.contributions,
+                                      _repo.getText().toString()));
+
+                                Timber.d("%s has made %d contributions to %s",
+                                      c.login,
+                                      c.contributions,
+                                      _repo.getText().toString());
+                            }
+                        }
+                    }));
     }
 
     @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
@@ -118,66 +120,65 @@ public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
         _subscriptions.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-                                   .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                                       @Override public Observable<Contributor> call(List<Contributor> contributors) {
-                                           return Observable.from(contributors);
-                                       }
-                                   })
-                                   .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
-                                       @Override
-                                       public Observable<Pair<User, Contributor>> call(Contributor contributor) {
-                                           Observable<User> _userObservable = _githubService.user(contributor.login)
-                                                   .filter(new Func1<User, Boolean>() {
-                                                       @Override public Boolean call(User user) {
-                                                           return !isEmpty(user.name) && !isEmpty(user.email);
-                                                       }
-                                                   });
-
-                                           return Observable.zip(_userObservable,
-                                                                 Observable.just(contributor),
-                                                                 new Func2<User, Contributor, Pair<User,
-                                                                         Contributor>>() {
-                                                                     @Override
-                                                                     public Pair<User, Contributor> call(User user,
-                                                                             Contributor contributor) {
-                                                                         return new Pair<>(user, contributor);
-                                                                     }
-                                                                 });
-                                       }
-                                   })
-                                   .subscribeOn(Schedulers.newThread())
-                                   .observeOn(AndroidSchedulers.mainThread())
-//                                   .unsubscribeOn(Schedulers.newThread())
-                                   // TODO: remove when https://github.com/square/okhttp/issues/1592 is fixed
-                                   .subscribe(new Observer<Pair<User, Contributor>>() {
-                                       @Override public void onCompleted() {
-                                           Timber.d("Retrofit call 2 completed ");
-                                       }
-
-                                       @Override public void onError(Throwable e) {
-                                           Timber.e(e,
-                                                    "error while getting the list of contributors along with full "
-                                                    + "names");
-                                       }
-
-                                       @Override public void onNext(Pair<User, Contributor> pair) {
-                                           User user = pair.first;
-                                           Contributor contributor = pair.second;
-
-                                           _adapter.add(format("%s(%s) has made %d contributions to %s",
-                                                               user.name,
-                                                               user.email,
-                                                               contributor.contributions,
-                                                               _repo.getText().toString()));
-
-                                           _adapter.notifyDataSetChanged();
-
-                                           Timber.d("%s(%s) has made %d contributions to %s",
-                                                    user.name,
-                                                    user.email,
-                                                    contributor.contributions,
-                                                    _repo.getText().toString());
-                                       }
-                                   }));
+              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
+                  @Override
+                  public Observable<Contributor> call(List<Contributor> contributors) {
+                      return Observable.from(contributors);
+                  }
+              })
+              .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
+                  @Override
+                  public Observable<Pair<User, Contributor>> call(Contributor contributor) {
+                      Observable<User> _userObservable = _githubService.user(contributor.login)
+                            .filter(new Func1<User, Boolean>() {
+                                @Override
+                                public Boolean call(User user) {
+                                    return !isEmpty(user.name) && !isEmpty(user.email);
+                                }
+                            });
+
+                      return Observable.zip(_userObservable,
+                            Observable.just(contributor),
+                            new Func2<User, Contributor, Pair<User, Contributor>>() {
+                                @Override
+                                public Pair<User, Contributor> call(User user, Contributor contributor) {
+                                    return new Pair<>(user, contributor);
+                                }
+                            });
+                  }
+              })
+              .subscribeOn(Schedulers.newThread())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Observer<Pair<User, Contributor>>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("Retrofit call 2 completed ");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "error while getting the list of contributors along with full " + "names");
+                  }
+
+                  @Override
+                  public void onNext(Pair<User, Contributor> pair) {
+                      User user = pair.first;
+                      Contributor contributor = pair.second;
+
+                      _adapter.add(format("%s(%s) has made %d contributions to %s",
+                            user.name,
+                            user.email,
+                            contributor.contributions,
+                            _repo.getText().toString()));
+
+                      _adapter.notifyDataSetChanged();
+
+                      Timber.d("%s(%s) has made %d contributions to %s",
+                            user.name,
+                            user.email,
+                            contributor.contributions,
+                            _repo.getText().toString());
+                  }
+              }));
     }
 }

From f7c38d9f10195fab647cb2acbf2f5fbafc87a5e4 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 17 Jan 2016 12:56:20 -0800
Subject: [PATCH 138/260] fix: move to independent package + remove dead code +
 add readme

---
 README.md                                     |   5 +
 app/build.gradle                              |  16 +-
 .../com/morihacky/android/rxjava/MyApp.java   |   8 +-
 .../rxjava/fragments/MainFragment.java        |   1 +
 .../android/rxjava/volley/MyVolley.java       |  30 ++++
 .../VolleyDemoFragment.java                   | 158 +++++++-----------
 .../android/rxjava/wiring/MyVolley.java       |  63 -------
 7 files changed, 112 insertions(+), 169 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
 rename app/src/main/java/com/morihacky/android/rxjava/{fragments => volley}/VolleyDemoFragment.java (65%)
 delete mode 100644 app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java

diff --git a/README.md b/README.md
index 5ffe76ee..bdb5490d 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,11 @@ This is the debounce/throttleWithTimeout method in RxJava.
 
 Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
 
+### Volley Demo
+
+[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
+
+
 ### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
 The below ascii diagram expresses the intention of our next example with panache. f1,f2,3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
diff --git a/app/build.gradle b/app/build.gradle
index 164fdf86..e28d433e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,28 +3,28 @@ apply plugin: 'com.android.application'
 dependencies {
     compile 'com.android.support:support-v13:23.0.1'
 
+
     compile 'io.reactivex:rxandroid:1.0.1'
+    compile 'io.reactivex:rxjava-math:1.0.0'
+    compile 'io.reactivex:rxjava:1.0.14'
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
-    compile 'io.reactivex:rxjava:1.0.14'
-    compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
 
-    compile 'com.jakewharton:butterknife:7.0.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'com.squareup.retrofit:retrofit:1.6.1'
-    compile 'com.squareup.okhttp:okhttp:2.0.0'
+    compile 'com.jakewharton:butterknife:7.0.1'
+    compile 'com.mcxiaoke.volley:library:1.0.19'
     compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'
+    compile 'com.squareup.okhttp:okhttp:2.0.0'
+    compile 'com.squareup.retrofit:retrofit:1.6.1'
 
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
     releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
-    compile 'com.mcxiaoke.volley:library:1.0.19'
-
 }
 
 android {
     compileSdkVersion 23
-    buildToolsVersion '23.0.1'
+    buildToolsVersion '23.0.2'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index f6f18c97..2a8fdc17 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -2,7 +2,7 @@
 
 import android.app.Application;
 
-import com.morihacky.android.rxjava.wiring.MyVolley;
+import com.morihacky.android.rxjava.volley.MyVolley;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
 import timber.log.Timber;
@@ -28,9 +28,9 @@ public void onCreate() {
         _instance = (MyApp) getApplicationContext();
         _refWatcher = LeakCanary.install(this);
 
-        Timber.plant(new Timber.DebugTree());
-
-        //volley init
+        // Initialize Volley
         MyVolley.init(this);
+
+        Timber.plant(new Timber.DebugTree());
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 05efda07..dd3953b0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -13,6 +13,7 @@
 
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.volley.VolleyDemoFragment;
 
 public class MainFragment
       extends BaseFragment {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java b/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
new file mode 100644
index 00000000..d67b9433
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
@@ -0,0 +1,30 @@
+package com.morihacky.android.rxjava.volley;
+
+import android.content.Context;
+import com.android.volley.RequestQueue;
+import com.android.volley.toolbox.Volley;
+
+/**
+ * Helper class that is used to provide references to initialized RequestQueue(s) and ImageLoader(s)
+ *
+ * @author Ognyan Bankov
+ */
+public class MyVolley {
+    private static RequestQueue mRequestQueue;
+
+    private MyVolley() {
+        // no instances
+    }
+
+    public static void init(Context context) {
+        mRequestQueue = Volley.newRequestQueue(context);
+    }
+
+    public static RequestQueue getRequestQueue() {
+        if (mRequestQueue != null) {
+            return mRequestQueue;
+        } else {
+            throw new IllegalStateException("RequestQueue not initialized");
+        }
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
similarity index 65%
rename from app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java
rename to app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index a37f1810..6d67d8d8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -1,4 +1,4 @@
-package com.morihacky.android.rxjava.fragments;
+package com.morihacky.android.rxjava.volley;
 
 import android.os.Bundle;
 import android.os.Handler;
@@ -8,27 +8,22 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.android.volley.Request;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.JsonObjectRequest;
 import com.android.volley.toolbox.RequestFuture;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-import com.morihacky.android.rxjava.wiring.MyVolley;
-
-import org.json.JSONObject;
-
 import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+import org.json.JSONObject;
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
@@ -37,43 +32,25 @@
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
-/**
- * Created by zhangxitao on 15/12/30.
- */
-
 public class VolleyDemoFragment
-        extends BaseFragment {
+      extends BaseFragment {
+
     public static final String TAG = "VolleyDemoFragment";
 
-    @Bind(R.id.list_threading_log)
-    ListView _logsList;
-    @Bind(R.id.btn_start_operation)
-    Button _tapBtn;
+    @Bind(R.id.list_threading_log) ListView _logsList;
 
-    private LogAdapter _adapter;
     private List<String> _logs;
+    private LogAdapter _adapter;
 
-    private CompositeSubscription mCompositeSubscription = new CompositeSubscription();
-
-    @OnClick(R.id.btn_start_operation)
-    void startRequest() {
-        startVolleyRequest();
-    }
-
-
-    @Override
-    public void onStart() {
-        super.onStart();
-
-        /**
-         * @condition: RxJava future request with volley
-         */
-    }
+    private CompositeSubscription _compositeSubscription = new CompositeSubscription();
 
     @Override
-    public void onPause() {
-        super.onPause();
-        mCompositeSubscription.unsubscribe();
+    public View onCreateView(LayoutInflater inflater,
+          @Nullable ViewGroup container,
+          @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_volley, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
     }
 
     @Override
@@ -83,66 +60,15 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     }
 
     @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_volley, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    private void startVolleyRequest() {
-        mCompositeSubscription.add(newGetRouteData()
-                .subscribeOn(Schedulers.io())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(new Observer<JSONObject>() {
-                    @Override
-                    public void onCompleted() {
-                        Log.e(TAG, "onCompleted");
-                        Timber.d("----- onCompleted");
-                        _log("onCompleted ");
-                    }
-
-                    @Override
-                    public void onError(Throwable e) {
-                        VolleyError cause = (VolleyError) e.getCause();
-                        String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
-                        Log.e(TAG, s);
-                        Log.e(TAG, cause.toString());
-                        _log("onError " + s);
-
-                    }
-
-                    @Override
-                    public void onNext(JSONObject jsonObject) {
-                        Log.e(TAG, "onNext " + jsonObject.toString());
-                        _log("onNext " + jsonObject.toString());
-
-                    }
-                }));
-    }
-
-
-    /**
-     * @use handle response from future request, in my case JsonObject.
-     */
-    private JSONObject getRouteData() throws ExecutionException, InterruptedException {
-        RequestFuture<JSONObject> future = RequestFuture.newFuture();
-        String url = "http://www.weather.com.cn/adat/sk/101010100.html";
-        final Request.Priority priority = Request.Priority.IMMEDIATE;
-        JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, url, future, future);
-        MyVolley.getRequestQueue().add(req);
-        return future.get();
+    public void onPause() {
+        super.onPause();
+        _compositeSubscription.unsubscribe();
     }
 
-    /**
-     * @use the observable, same type data Jsob Object
-     */
     public Observable<JSONObject> newGetRouteData() {
         return Observable.defer(new Func0<Observable<JSONObject>>() {
             @Override
             public Observable<JSONObject> call() {
-                Exception exception;
                 try {
                     return Observable.just(getRouteData());
                 } catch (InterruptedException | ExecutionException e) {
@@ -153,6 +79,50 @@ public Observable<JSONObject> call() {
         });
     }
 
+    @OnClick(R.id.btn_start_operation)
+    void startRequest() {
+        startVolleyRequest();
+    }
+
+    private void startVolleyRequest() {
+        _compositeSubscription.add(newGetRouteData().subscribeOn(Schedulers.io())
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Observer<JSONObject>() {
+                  @Override
+                  public void onCompleted() {
+                      Log.e(TAG, "onCompleted");
+                      Timber.d("----- onCompleted");
+                      _log("onCompleted ");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      VolleyError cause = (VolleyError) e.getCause();
+                      String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
+                      Log.e(TAG, s);
+                      Log.e(TAG, cause.toString());
+                      _log("onError " + s);
+
+                  }
+
+                  @Override
+                  public void onNext(JSONObject jsonObject) {
+                      Log.e(TAG, "onNext " + jsonObject.toString());
+                      _log("onNext " + jsonObject.toString());
+
+                  }
+              }));
+    }
+
+    private JSONObject getRouteData() throws ExecutionException, InterruptedException {
+        RequestFuture<JSONObject> future = RequestFuture.newFuture();
+        String url = "http://www.weather.com.cn/adat/sk/101010100.html";
+        final Request.Priority priority = Request.Priority.IMMEDIATE;
+        JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, url, future, future);
+        MyVolley.getRequestQueue().add(req);
+        return future.get();
+    }
+
     // -----------------------------------------------------------------------------------
     // Methods that help wiring up the example (irrelevant to RxJava)
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java b/app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java
deleted file mode 100644
index 9f2a2534..00000000
--- a/app/src/main/java/com/morihacky/android/rxjava/wiring/MyVolley.java
+++ /dev/null
@@ -1,63 +0,0 @@
-package com.morihacky.android.rxjava.wiring;
-
-/**
- * Created by zhangxitao on 15/9/7.
- */
-
-import android.app.ActivityManager;
-import android.content.Context;
-
-import com.android.volley.RequestQueue;
-import com.android.volley.toolbox.ImageLoader;
-import com.android.volley.toolbox.Volley;
-
-/**
- * Helper class that is used to provide references to initialized RequestQueue(s) and ImageLoader(s)
- *
- * @author Ognyan Bankov
- */
-public class MyVolley {
-    private static RequestQueue mRequestQueue;
-    private static ImageLoader mImageLoader;
-
-
-    private MyVolley() {
-        // no instances
-    }
-
-
-    public static void init(Context context) {
-        mRequestQueue = Volley.newRequestQueue(context);
-
-        int memClass = ((ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE))
-                .getMemoryClass();
-        // Use 1/8th of the available memory for this memory cache.
-        int cacheSize = 1024 * 1024 * memClass / 8;
-//        mImageLoader = new ImageLoader(mRequestQueue, new BitmapLruCache(cacheSize));
-    }
-
-
-    public static RequestQueue getRequestQueue() {
-        if (mRequestQueue != null) {
-            return mRequestQueue;
-        } else {
-            throw new IllegalStateException("RequestQueue not initialized");
-        }
-    }
-
-
-    /**
-     * Returns instance of ImageLoader initialized with {@see FakeImageCache} which effectively means
-     * that no memory caching is used. This is useful for images that you know that will be show
-     * only once.
-     *
-     * @return
-     */
-    public static ImageLoader getImageLoader() {
-        if (mImageLoader != null) {
-            return mImageLoader;
-        } else {
-            throw new IllegalStateException("ImageLoader not initialized");
-        }
-    }
-}

From 605ecdfd56af2b45edc200aedc49629168231cc4 Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Thu, 28 Jan 2016 08:22:00 +1100
Subject: [PATCH 139/260] fix: added ButterKnife unbind s, and cleaned up if
 not null unsubscribe

---
 .../rxjava/fragments/BufferDemoFragment.java  |  5 +++++
 ...ConcurrencyWithSchedulersDemoFragment.java |  6 +++---
 .../DebounceSearchEmitterFragment.java        |  6 +++---
 .../DoubleBindingTextViewFragment.java        |  6 +++---
 .../fragments/ExponentialBackoffFragment.java |  6 ++++++
 .../FormValidationCombineLatestFragment.java  | 11 +++++++---
 .../rxjava/fragments/MainFragment.java        |  6 ++++++
 .../fragments/PseudoCacheConcatFragment.java  | 11 +++++++---
 .../fragments/PseudoCacheMergeFragment.java   | 20 +++++++++++++------
 .../RetrofitAsyncTaskDeathFragment.java       |  6 ++++++
 .../rxjava/fragments/RetrofitFragment.java    |  7 ++++++-
 .../fragments/RotationPersist1Fragment.java   |  6 ++++++
 .../rxjava/fragments/TimingDemoFragment.java  |  6 ++++++
 .../rxjava/volley/VolleyDemoFragment.java     |  6 ++++++
 14 files changed, 86 insertions(+), 22 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 04df144d..f6e10a24 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -79,6 +79,11 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index 9d630603..e97e0b62 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -13,6 +13,7 @@
 import android.widget.ProgressBar;
 
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -41,9 +42,8 @@ public class ConcurrencyWithSchedulersDemoFragment
     @Override
     public void onDestroy() {
         super.onDestroy();
-        if (_subscription != null) {
-            _subscription.unsubscribe();
-        }
+        RxUtils.unsubscribeIfNotNull(_subscription);
+        ButterKnife.unbind(this);
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 4967364f..86ebe05e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -15,6 +15,7 @@
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -44,9 +45,8 @@ public class DebounceSearchEmitterFragment
     @Override
     public void onDestroy() {
         super.onDestroy();
-        if (_subscription != null) {
-            _subscription.unsubscribe();
-        }
+        RxUtils.unsubscribeIfNotNull(_subscription);
+        ButterKnife.unbind(this);
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index 25b491a4..e3891c4a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -9,6 +9,7 @@
 import android.widget.TextView;
 
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
@@ -69,8 +70,7 @@ public void onNumberChanged() {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        if (_subscription != null) {
-            _subscription.unsubscribe();
-        }
+        RxUtils.unsubscribeIfNotNull(_subscription);
+        ButterKnife.unbind(this);
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index a9e9a194..c6bf8397 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -66,6 +66,12 @@ public void onPause() {
         RxUtils.unsubscribeIfNotNull(_subscriptions);
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     // -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_eb_retry)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 3a655888..b3301c4c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -10,6 +10,7 @@
 
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
@@ -57,9 +58,13 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        if (_subscription != null) {
-            _subscription.unsubscribe();
-        }
+        RxUtils.unsubscribeIfNotNull(_subscription);
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
     }
 
     private void _combineLatestEvents() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index fbf68624..1313f604 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -27,6 +27,12 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     @OnClick(R.id.btn_demo_schedulers)
     void demoConcurrencyWithSchedulers() {
         clickedOn(new ConcurrencyWithSchedulersDemoFragment());
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index 7e460a44..f4affcbc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -9,6 +9,7 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
@@ -49,9 +50,13 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        if (_subscription != null) {
-            _subscription.unsubscribe();
-        }
+        RxUtils.unsubscribeIfNotNull(_subscription);
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
     }
 
     @OnClick(R.id.btn_start_pseudo_cache)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 777ff3ae..cd27c8ed 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -8,16 +8,20 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
 import rx.Subscription;
@@ -48,9 +52,13 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        if (_subscription != null) {
-            _subscription.unsubscribe();
-        }
+        RxUtils.unsubscribeIfNotNull(_subscription);
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
     }
 
     @OnClick(R.id.btn_start_pseudo_cache)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index a8ff66a1..718d9601 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -64,6 +64,12 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     @OnClick(R.id.btn_demo_retrofit_async_death)
     public void onGetGithubUserClicked() {
         _adapter.clear();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index daf9a811..32ee5208 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -75,10 +75,15 @@ public void onResume() {
     @Override
     public void onPause() {
         super.onPause();
-
         RxUtils.unsubscribeIfNotNull(_subscriptions);
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     @OnClick(R.id.btn_demo_retrofit_contributors)
     public void onListContributorsClicked() {
         _adapter.clear();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 31344672..9a6afd77 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -119,6 +119,12 @@ public void onPause() {
         RxUtils.unsubscribeIfNotNull(_subscriptions);
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     private void _setupLogger() {
         _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index c59605c6..1a5767b8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -54,6 +54,12 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     // -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_demo_timing_1)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index 6d67d8d8..44a7c4da 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -65,6 +65,12 @@ public void onPause() {
         _compositeSubscription.unsubscribe();
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
     public Observable<JSONObject> newGetRouteData() {
         return Observable.defer(new Func0<Observable<JSONObject>>() {
             @Override

From b6ee8d903b8ff57fb025454766b021d56c70549f Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Thu, 28 Jan 2016 08:27:31 +1100
Subject: [PATCH 140/260] fix: replaced deprecated onAttach with correct
 override

---
 .../fragments/RotationPersist1WorkerFragment.java     | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
index 58bdede1..4c727e1c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
@@ -1,11 +1,14 @@
 package com.morihacky.android.rxjava.fragments;
 
-import android.app.Activity;
+import android.content.Context;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
+
 import com.morihacky.android.rxjava.MainActivity;
+
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
 import rx.Observable;
 import rx.Subscription;
 import rx.functions.Func1;
@@ -24,10 +27,10 @@ public class RotationPersist1WorkerFragment
      * we can talk back to the master and send results
      */
     @Override
-    public void onAttach(Activity activity) {
-        super.onAttach(activity);
+    public void onAttach(Context context) {
+        super.onAttach(context);
 
-        List<Fragment> frags = ((MainActivity) activity).getSupportFragmentManager().getFragments();
+        List<Fragment> frags = ((MainActivity) context).getSupportFragmentManager().getFragments();
         for (Fragment f : frags) {
             if (f instanceof IAmYourMaster) {
                 _masterFrag = (IAmYourMaster) f;

From 85979da659184f6ac7d48d4038699ac3c07fca27 Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Thu, 4 Feb 2016 10:22:02 +1100
Subject: [PATCH 141/260] update theme to be more material

---
 app/build.gradle                   | 3 ++-
 app/src/main/res/values/colors.xml | 4 ++++
 app/src/main/res/values/styles.xml | 8 +++++---
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 8db2ecbf..209d4a41 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,7 +1,8 @@
 apply plugin: 'com.android.application'
 
 dependencies {
-    compile 'com.android.support:support-v13:23.0.1'
+    compile 'com.android.support:support-v13:23.1.1'
+    compile 'com.android.support:appcompat-v7:23.1.1'
 
     compile 'io.reactivex:rxandroid:1.0.1'
     // Because RxAndroid releases are few and far between, it is recommended you also
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index c7cd3707..432d108f 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+
     <color name="red">#eb676b</color>
     <color name="blue">#488cef</color>
     <color name="green">#3bc4a2</color>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 0810d6e8..a11c0b30 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -1,9 +1,11 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme"
-           parent="android:Theme.Holo.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
     </style>
 
 </resources>

From b661f0f3e5efa58f5a6838a9183f5b7d8712a38d Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Mon, 25 Jan 2016 00:09:31 +1100
Subject: [PATCH 142/260] fix: finished polling demo

---
 .../rxjava/fragments/MainFragment.java        |   5 +
 .../rxjava/fragments/PollingFragment.java     | 105 +++++++++++++-----
 app/src/main/res/layout/fragment_main.xml     |   5 +-
 3 files changed, 86 insertions(+), 29 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 1313f604..b8df6c3e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -53,6 +53,11 @@ void demoRetrofitCalls() {
         clickedOn(new RetrofitFragment());
     }
 
+    @OnClick(R.id.btn_demo_polling)
+    void demoPolling() {
+        clickedOn(new PollingFragment());
+    }
+
     @OnClick(R.id.btn_demo_double_binding_textview)
     void demoDoubleBindingWithPublishSubject() {
         clickedOn(new DoubleBindingTextViewFragment());
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index c0a44571..1a588d01 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -12,6 +12,7 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -21,7 +22,9 @@
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import rx.Observable;
+import rx.Scheduler;
 import rx.Subscriber;
+import rx.Subscription;
 import rx.functions.Action0;
 import rx.functions.Action1;
 import rx.schedulers.Schedulers;
@@ -39,17 +42,14 @@ public class PollingFragment
     private List<String> _logs;
     private CompositeSubscription _subscriptions;
     private int _counter = 0;
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _subscriptions.unsubscribe();
-    }
+    private Scheduler.Worker _worker;
 
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         _subscriptions = new CompositeSubscription();
+        _worker = Schedulers.newThread()
+                .createWorker();
         _setupLogger();
     }
 
@@ -62,31 +62,82 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        RxUtils.unsubscribeIfNotNull(_subscriptions);
+        ButterKnife.unbind(this);
+    }
+
     @OnClick(R.id.btn_start_simple_polling)
     public void onStartSimplePollingClicked() {
-        _subscriptions.add(Observable.create(new Observable.OnSubscribe<String>() {
-            @Override
-            public void call(final Subscriber<? super String> observer) {
-
-                Schedulers.newThread().createWorker() //
-                      .schedulePeriodically(new Action0() {
-                          @Override
-                          public void call() {
-                              observer.onNext(_doNetworkCallAndGetStringResult());
-                          }
-                      }, INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS);
-            }
-        }).take(10).subscribe(new Action1<String>() {
-            @Override
-            public void call(String s) {
-                _log(String.format("String polling - %s", s));
-            }
-        }));
+        _setupLogger();
+        _log(String.format("Simple String polling - %s", _counter));
+        _subscriptions.add(Observable.create(
+                        new Observable.OnSubscribe<String>() {
+                            @Override
+                            public void call(final Subscriber<? super String> subscriber) {
+                                Subscription subscription = _worker
+                                        .schedulePeriodically(new Action0() {
+                                            @Override
+                                            public void call() {
+                                                subscriber.onNext(_doNetworkCallAndGetStringResult());
+                                            }
+                                        }, INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS);
+                                subscriber.add(subscription);
+                            }
+                        })
+                        .take(10)
+                        .subscribe(new Action1<String>() {
+                            @Override
+                            public void call(String s) {
+                                _log(String.format("String polling - %s", s));
+                            }
+                        })
+        );
+    }
+
+    @OnClick(R.id.btn_start_increasingly_delayed_polling)
+    public void onStartIncreasinglyDelayedPolling() {
+        _setupLogger();
+        _log(String.format("Increasingly delayed String polling - %s", _counter));
+        continueIncreasinglyDelayedPolling(1000, 10);
     }
 
+    private void continueIncreasinglyDelayedPolling(final int delay, final int limit) {
+        _subscriptions = _unsubscribeAndGetNewCompositeSub(_subscriptions);
+         Observable.create(
+                new Observable.OnSubscribe<String>() {
+                    @Override
+                    public void call(final Subscriber<? super String> subscriber) {
+
+                        Subscription subscription = _worker.schedule(new Action0() {
+                                    @Override
+                                    public void call() {
+                                        subscriber.onNext(_doNetworkCallAndGetStringResult());
+                                    }
+                        }, delay, TimeUnit.MILLISECONDS);
+                        subscriber.add(subscription);
+                    }
+                })
+                .take(limit)
+                .subscribe(new Action1<String>() {
+                    @Override
+                    public void call(String s) {
+                        continueIncreasinglyDelayedPolling(delay + 1000, limit - 1);
+                        Timber.d("delay of %d", delay);
+                        _log(String.format("String polling - %s", s));
+                    }
+                });
+    }
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 
+    private static CompositeSubscription _unsubscribeAndGetNewCompositeSub(CompositeSubscription subscription){
+        RxUtils.unsubscribeIfNotNull(subscription);
+        return  RxUtils.getNewCompositeSubIfUnsubscribed(subscription);
+    }
+
     private String _doNetworkCallAndGetStringResult() {
 
         try {
@@ -120,9 +171,11 @@ public void run() {
     }
 
     private void _setupLogger() {
-        _logs = new ArrayList<String>();
+        _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
         _logsList.setAdapter(_adapter);
+        _subscriptions = _unsubscribeAndGetNewCompositeSub(_subscriptions);
+        _counter = 0;
     }
 
     private boolean _isCurrentlyOnMainThread() {
@@ -130,7 +183,7 @@ private boolean _isCurrentlyOnMainThread() {
     }
 
     private class LogAdapter
-          extends ArrayAdapter<String> {
+            extends ArrayAdapter<String> {
 
         public LogAdapter(Context context, List<String> logs) {
             super(context, R.layout.item_log, R.id.item_log, logs);
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index aba0cd1d..66fc53f4 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -52,12 +52,11 @@
             android:text="@string/btn_demo_double_binding_textview"
             />
 
-        <!--<Button
+        <Button
             android:id="@+id/btn_demo_polling"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
-            android:text="@string/btn_demo_polling"
-            />-->
+            android:text="@string/btn_demo_polling" />
 
         <Button
             android:id="@+id/btn_demo_rxbus"

From cbe676f50a8c1db965ff63dfe1fc7ff975a2c3de Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Thu, 11 Feb 2016 06:44:34 +1100
Subject: [PATCH 143/260] added project code style and cleaned up ignores

---
 .gitignore                  |  16 +--
 .idea/codeStyleSettings.xml | 236 ++++++++++++++++++++++++++++++++++++
 2 files changed, 245 insertions(+), 7 deletions(-)
 create mode 100644 .idea/codeStyleSettings.xml

diff --git a/.gitignore b/.gitignore
index 77e62b9f..26aca80c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,18 +15,20 @@ build/
 
 # Gradle files
 .gradle/
-build/
 subProjects/facebook/build
 
 # Intellij project files
-.idea/
+.idea/libraries
+.idea/.name
+.idea/compiler.xml
+.idea/gradle.xml
+.idea/modules.xml
+.idea/runConfigurations.xml
+.idea/vcs.xml
 .idea/workspace.xml
+.idea/misc.xml
 gen-external-apklibs/
 *.iml
-
-# Intellij
-.idea/
-*.iml
 *.iws
 
 # Local configuration file (sdk path, etc)
@@ -43,4 +45,4 @@ pom.xml.*
 #Ant
 build.xml
 ant.properties
-local.properties
\ No newline at end of file
+profiles_settings.xml
diff --git a/.idea/codeStyleSettings.xml b/.idea/codeStyleSettings.xml
new file mode 100644
index 00000000..4abac691
--- /dev/null
+++ b/.idea/codeStyleSettings.xml
@@ -0,0 +1,236 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectCodeStyleSettingsManager">
+    <option name="PER_PROJECT_SETTINGS">
+      <value>
+        <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
+        <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
+        <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
+          <value />
+        </option>
+        <option name="IMPORT_LAYOUT_TABLE">
+          <value>
+            <package name="android" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="com" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="junit" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="net" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="org" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="java" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="javax" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="" withSubpackages="true" static="false" />
+            <emptyLine />
+            <package name="" withSubpackages="true" static="true" />
+            <emptyLine />
+          </value>
+        </option>
+        <option name="RIGHT_MARGIN" value="100" />
+        <AndroidXmlCodeStyleSettings>
+          <option name="USE_CUSTOM_SETTINGS" value="true" />
+        </AndroidXmlCodeStyleSettings>
+        <Objective-C-extensions>
+          <option name="GENERATE_INSTANCE_VARIABLES_FOR_PROPERTIES" value="ASK" />
+          <option name="RELEASE_STYLE" value="IVAR" />
+          <option name="TYPE_QUALIFIERS_PLACEMENT" value="BEFORE" />
+          <file>
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
+          </file>
+          <class>
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
+            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
+          </class>
+          <extensions>
+            <pair source="cpp" header="h" />
+            <pair source="c" header="h" />
+          </extensions>
+        </Objective-C-extensions>
+        <XML>
+          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
+        </XML>
+        <codeStyleSettings language="JAVA">
+          <option name="ALIGN_MULTILINE_BINARY_OPERATION" value="true" />
+          <option name="FIELD_ANNOTATION_WRAP" value="0" />
+          <indentOptions>
+            <option name="CONTINUATION_INDENT_SIZE" value="6" />
+          </indentOptions>
+        </codeStyleSettings>
+        <codeStyleSettings language="XML">
+          <option name="FORCE_REARRANGE_MODE" value="1" />
+          <indentOptions>
+            <option name="CONTINUATION_INDENT_SIZE" value="4" />
+          </indentOptions>
+          <arrangement>
+            <rules>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>xmlns:android</NAME>
+                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>xmlns:.*</NAME>
+                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:id</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:name</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>name</NAME>
+                      <XML_NAMESPACE>^$</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>style</NAME>
+                      <XML_NAMESPACE>^$</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*</NAME>
+                      <XML_NAMESPACE>^$</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:layout_width</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:layout_height</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:layout_.*</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:width</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*:height</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*</NAME>
+                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+              <section>
+                <rule>
+                  <match>
+                    <AND>
+                      <NAME>.*</NAME>
+                      <XML_NAMESPACE>.*</XML_NAMESPACE>
+                    </AND>
+                  </match>
+                  <order>BY_NAME</order>
+                </rule>
+              </section>
+            </rules>
+          </arrangement>
+        </codeStyleSettings>
+      </value>
+    </option>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </component>
+</project>
\ No newline at end of file

From b9449425d1861def6b3ac875fd6627fb419b92b7 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Feb 2016 15:56:53 -0800
Subject: [PATCH 144/260] chore: upgrade gradle wrapper version

---
 gradle/wrapper/gradle-wrapper.properties | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 67db8c56..6d8cccc2 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Wed Sep 02 11:33:19 PDT 2015
+#Thu Feb 25 15:10:50 PST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.7-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2-all.zip

From 337f53c3a3427dbe1f196e469798053612906619 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Feb 2016 16:03:45 -0800
Subject: [PATCH 145/260] fix: styling + text on help

---
 app/src/main/res/layout/fragment_polling.xml | 25 ++++++++++----------
 app/src/main/res/values/strings.xml          |  2 +-
 2 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/app/src/main/res/layout/fragment_polling.xml b/app/src/main/res/layout/fragment_polling.xml
index 930c7e5a..c10c3a10 100644
--- a/app/src/main/res/layout/fragment_polling.xml
+++ b/app/src/main/res/layout/fragment_polling.xml
@@ -1,48 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
 
 <LinearLayout
-    android:orientation="vertical"
-    android:layout_height="match_parent"
-    android:layout_width="match_parent"
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
     >
 
     <TextView
-        android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        android:padding="10dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
+        android:padding="10dp"
         android:text="@string/msg_demo_polling"
         />
 
 
     <LinearLayout
-        android:layout_height="wrap_content"
         android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
         >
 
         <Button
             android:id="@+id/btn_start_simple_polling"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_width="wrap_content"
-            android:layout_marginLeft="20dp"
-            android:textSize="16sp"
             android:text="Start simple polling"
+            android:textSize="16sp"
             />
 
         <Button
             android:id="@+id/btn_start_increasingly_delayed_polling"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_width="wrap_content"
-            android:layout_marginLeft="20dp"
-            android:textSize="16sp"
             android:text="Start increasingly delayed polling"
+            android:textSize="16sp"
             />
     </LinearLayout>
 
     <ListView
         android:id="@+id/list_threading_log"
-        android:layout_height="match_parent"
         android:layout_width="match_parent"
+        android:layout_height="match_parent"
         />
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e3dda17b..f4b54a64 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -28,7 +28,7 @@
     <string name="msg_demo_retrofit">Retrofit from Square is a super easy networking helper library. It works really well with RxJava and these are examples taken from Jake Wharton\'s talk at Netflix (see README). Really the only interesting bits here are in the code and logs.</string>
     <string name="msg_demo_retrofit_async_task_death">This shows how you can replace an AsyncTask with RxJava. The interesting parts are in the code.</string>
     <string name="msg_demo_doublebinding">Watch how the result gloriously auto-updates <ba></ba>sed on your changing inputs. Using a technique like this, you could achieve the two-way binding in Angular Js, or more efficiently use a pattern like the Presentation View Model.</string>
-    <string name="msg_demo_polling">This is demo of polling or making a call repeatedly with RxJava. \n\nSimple polling: Notice in the logs how a network call (simulated) is repeatedly made in the background.</string>
+    <string name="msg_demo_polling">Demo polling or making a call repeatedly with RxJava.\n\nSimple polling: Notice in the logs how a (simulated) network call is repeatedly made in the background.</string>
     <string name="msg_demo_exponential_backoff">These two examples demonstrate retrying and executing with a delay using an exponential backoff strategy.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>

From 588df66094f2b2e0272397817fc2f77e499a27be Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Feb 2016 16:12:35 -0800
Subject: [PATCH 146/260] fix: use  for a simpler solution to the polling
 problem (thanks @mandybess for hitting me up on this)

---
 .../rxjava/fragments/PollingFragment.java     | 46 +++++++++----------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 1a588d01..939a0f6c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -27,6 +27,7 @@
 import rx.Subscription;
 import rx.functions.Action0;
 import rx.functions.Action1;
+import rx.functions.Func1;
 import rx.schedulers.Schedulers;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
@@ -35,7 +36,7 @@ public class PollingFragment
       extends BaseFragment {
 
     public static final int INITIAL_DELAY = 0;
-    public static final int POLLING_INTERVAL = 1000;
+    public static final int POLLING_INTERVAL = 500;
     @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
@@ -72,28 +73,27 @@ public void onDestroy() {
     @OnClick(R.id.btn_start_simple_polling)
     public void onStartSimplePollingClicked() {
         _setupLogger();
-        _log(String.format("Simple String polling - %s", _counter));
-        _subscriptions.add(Observable.create(
-                        new Observable.OnSubscribe<String>() {
-                            @Override
-                            public void call(final Subscriber<? super String> subscriber) {
-                                Subscription subscription = _worker
-                                        .schedulePeriodically(new Action0() {
-                                            @Override
-                                            public void call() {
-                                                subscriber.onNext(_doNetworkCallAndGetStringResult());
-                                            }
-                                        }, INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS);
-                                subscriber.add(subscription);
-                            }
-                        })
-                        .take(10)
-                        .subscribe(new Action1<String>() {
-                            @Override
-                            public void call(String s) {
-                                _log(String.format("String polling - %s", s));
-                            }
-                        })
+
+        _subscriptions.add(//
+              Observable.interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
+                    .map(new Func1<Long, String>() {
+                        @Override
+                        public String call(Long heartBeat) {
+                            return _doNetworkCallAndGetStringResult();
+                        }
+                    }).take(5)
+                    .doOnSubscribe(new Action0() {
+                        @Override
+                        public void call() {
+                            _log(String.format("Simple String polling - %s", _counter));
+                        }
+                    })
+                    .subscribe(new Action1<String>() {
+                        @Override
+                        public void call(String s) {
+                            _log(String.format("Start simple polling - %s", s));
+                        }
+                    })
         );
     }
 

From 5557c04874ffc70411c7583e783294e693531494 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Feb 2016 18:23:19 -0800
Subject: [PATCH 147/260] feat: add comments for in-depth explanation of the
 working

doing this as we update the polling example to do something similar.
---
 .../fragments/ExponentialBackoffFragment.java | 24 ++++++++++++++-----
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index c6bf8397..1450de2c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -82,7 +82,7 @@ public void startRetryingWithExponentialBackoffStrategy() {
         _subscriptions.add(//
               Observable//
                     .error(new RuntimeException("testing")) // always fails
-                    .retryWhen(new RetryWithDelay(5, 1000))//
+                    .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext values sent are ignored)
                     .doOnSubscribe(new Action0() {
                         @Override
                         public void call() {
@@ -196,7 +196,7 @@ public void run() {
 
     // CAUTION:
     // --------------------------------------
-    // THIS class HAS NO BUSINESS BEING non-static
+    // THIS notificationHandler class HAS NO BUSINESS BEING non-static
     // I ONLY did this cause i wanted access to the `_log` method from inside here
     // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
 
@@ -216,14 +216,24 @@ public RetryWithDelay(final int maxRetries, final int retryDelayMillis) {
             _retryCount = 0;
         }
 
+        // this is a notificationhandler, all that is cared about here
+        // is the emission "type" not emission "content"
+        // only onNext triggers a re-subscription (onError + onComplete kills it)
+
         @Override
-        public Observable<?> call(Observable<? extends Throwable> attempts) {
-            return attempts.flatMap(new Func1<Throwable, Observable<?>>() {
+        public Observable<?> call(Observable<? extends Throwable> inputObservable) {
+
+            // it is critical to use inputObservable in the chain for the result
+            // ignoring it and doing your own thing will break the sequence
+
+            return inputObservable.flatMap(new Func1<Throwable, Observable<?>>() {
                 @Override
                 public Observable<?> call(Throwable throwable) {
                     if (++_retryCount < _maxRetries) {
+
                         // When this Observable calls onNext, the original
-                        // Observable will be retried (i.e. re-subscribed).
+                        // Observable will be retried (i.e. re-subscribed)
+
                         Timber.d("Retrying in %d ms", _retryCount * _retryDelayMillis);
                         _log(String.format("Retrying in %d ms", _retryCount * _retryDelayMillis));
 
@@ -232,7 +242,9 @@ public Observable<?> call(Throwable throwable) {
                     }
 
                     Timber.d("Argh! i give up");
-                    // Max retries hit. Just pass the error along.
+
+                    // Max retries hit. Pass an error so the chain is forcibly completed
+                    // only onNext triggers a re-subscription (onError + onComplete kills it)
                     return Observable.error(throwable);
                 }
             });

From 87124aac43e223a27a687940d1f8f0eb985a47de Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Feb 2016 18:27:51 -0800
Subject: [PATCH 148/260] ref: use RepeatWhen approach for increasingly delayed
 polling

---
 README.md                                     |  13 ++
 .../rxjava/fragments/PollingFragment.java     | 134 ++++++++++++------
 2 files changed, 101 insertions(+), 46 deletions(-)

diff --git a/README.md b/README.md
index bdb5490d..1bc599dc 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,17 @@ While the example here is pretty rudimentary, the technique used to achieve the
 
 This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
 
+There are two variants for this:
+
+1. Simple Polling: say when you want to execute a certain task every 5 seconds
+2. Increasing Delayed Polling: say when you want to execute a task first in 1 second, then in 2 seconds, then 3 and so on.
+
+The second example is basically a variant of [Exponential Backoff](https://github.com/kaushikgopal/RxJava-Android-Samples#exponential-backoff).
+
+Instead of using a RetryWithDelay, we use a RepeatWithDelay here. To understand the difference between Retry(When) and Repeat(When) I wouuld suggest Dan's [fantastic post on the subject](http://blog.danlew.net/2016/01/25/rxjavas-repeatwhen-and-retrywhen-explained/).
+
+An alternative approach to delayed polling without the use of `repeatWhen` would be using chained nested delay observables. See [startExecutingWithExponentialBackoffDelay in the ExponentialBackOffFragment example](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java#L111).
+
 ### RxBus - An event bus using RxJava + DebouncedBuffer
 
 Have a look at the accompanying blog posts for details on this demo:
@@ -132,6 +143,8 @@ We simulate this behaviour using RxJava with the [`retryWhen` operator](http://r
 * http://stackoverflow.com/a/25292833/159825
 * Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
 
+Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+
 #### "Repeat" with exponential backoff
 
 Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 939a0f6c..8d7d9933 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -16,41 +16,35 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 import java.util.concurrent.TimeUnit;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import rx.Observable;
-import rx.Scheduler;
-import rx.Subscriber;
-import rx.Subscription;
 import rx.functions.Action0;
 import rx.functions.Action1;
 import rx.functions.Func1;
-import rx.schedulers.Schedulers;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
 public class PollingFragment
       extends BaseFragment {
 
-    public static final int INITIAL_DELAY = 0;
-    public static final int POLLING_INTERVAL = 500;
+    private static final int INITIAL_DELAY = 0;
+    private static final int POLLING_INTERVAL = 1000;
+
     @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
-    private CompositeSubscription _subscriptions;
+    private CompositeSubscription _subscriptions = new CompositeSubscription();
     private int _counter = 0;
-    private Scheduler.Worker _worker;
 
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
-        _subscriptions = new CompositeSubscription();
-        _worker = Schedulers.newThread()
-                .createWorker();
         _setupLogger();
     }
 
@@ -72,8 +66,6 @@ public void onDestroy() {
 
     @OnClick(R.id.btn_start_simple_polling)
     public void onStartSimplePollingClicked() {
-        _setupLogger();
-
         _subscriptions.add(//
               Observable.interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
                     .map(new Func1<Long, String>() {
@@ -100,44 +92,89 @@ public void call(String s) {
     @OnClick(R.id.btn_start_increasingly_delayed_polling)
     public void onStartIncreasinglyDelayedPolling() {
         _setupLogger();
-        _log(String.format("Increasingly delayed String polling - %s", _counter));
-        continueIncreasinglyDelayedPolling(1000, 10);
+
+        final int pollingInterval = POLLING_INTERVAL;
+        final int repeatLimit = 5;
+
+        _log(String.format(Locale.US, "Start increasingly delayed polling now time: [xx:%02d]",
+              _getSecondHand()));
+
+        _subscriptions.add(//
+              Observable.just(1)
+                    .repeatWhen(new RepeatWithDelay(repeatLimit, pollingInterval))
+                    .subscribe(new Action1<Object>() {
+                        @Override
+                        public void call(Object o) {
+                            _log(String.format(Locale.US, "Executing polled task now time : [xx:%02d]",
+                                  _getSecondHand()));
+                        }
+                    }, new Action1<Throwable>() {
+                        @Override
+                        public void call(Throwable e) {
+                            Timber.d(e, "arrrr. Error");
+                        }
+                    })
+        );
     }
 
-    private void continueIncreasinglyDelayedPolling(final int delay, final int limit) {
-        _subscriptions = _unsubscribeAndGetNewCompositeSub(_subscriptions);
-         Observable.create(
-                new Observable.OnSubscribe<String>() {
-                    @Override
-                    public void call(final Subscriber<? super String> subscriber) {
-
-                        Subscription subscription = _worker.schedule(new Action0() {
-                                    @Override
-                                    public void call() {
-                                        subscriber.onNext(_doNetworkCallAndGetStringResult());
-                                    }
-                        }, delay, TimeUnit.MILLISECONDS);
-                        subscriber.add(subscription);
-                    }
-                })
-                .take(limit)
-                .subscribe(new Action1<String>() {
-                    @Override
-                    public void call(String s) {
-                        continueIncreasinglyDelayedPolling(delay + 1000, limit - 1);
-                        Timber.d("delay of %d", delay);
-                        _log(String.format("String polling - %s", s));
+    // -----------------------------------------------------------------------------------
+
+    // CAUTION:
+    // --------------------------------------
+    // THIS notificationHandler class HAS NO BUSINESS BEING non-static
+    // I ONLY did this cause i wanted access to the `_log` method from inside here
+    // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
+
+    // It's 12am in the morning and i feel lazy dammit !!!
+
+    //public static class RepeatWithDelay
+    public class RepeatWithDelay
+          implements Func1<Observable<? extends Void>, Observable<?>> {
+
+        private final int _repeatLimit;
+        private final int _pollingInterval;
+        private int _repeatCount = 1;
+
+        RepeatWithDelay(int repeatLimit, int pollingInterval) {
+            _pollingInterval = pollingInterval;
+            _repeatLimit = repeatLimit;
+        }
+
+        // this is a notificationhandler, all we care about is
+        // the emission "type" not emission "content"
+        // only onNext triggers a re-subscription
+
+        @Override
+        public Observable<?> call(Observable<? extends Void> inputObservable) {
+
+            // it is critical to use inputObservable in the chain for the result
+            // ignoring it and doing your own thing will break the sequence
+
+            return inputObservable.flatMap(new Func1<Void, Observable<?>>() {
+                @Override
+                public Observable<?> call(Void blah) {
+
+
+                    if (_repeatCount >= _repeatLimit) {
+                        // terminate the sequence cause we reached the limit
+                        _log("Completing sequence");
+                        return Observable.empty();
                     }
-                });
+
+                    // since we don't get an input
+                    // we store state in this handler to tell us the point of time we're firing
+                    _repeatCount++;
+
+                    return Observable.timer(_repeatCount * _pollingInterval,
+                          TimeUnit.MILLISECONDS);
+                }
+            });
+        }
     }
+
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 
-    private static CompositeSubscription _unsubscribeAndGetNewCompositeSub(CompositeSubscription subscription){
-        RxUtils.unsubscribeIfNotNull(subscription);
-        return  RxUtils.getNewCompositeSubIfUnsubscribed(subscription);
-    }
-
     private String _doNetworkCallAndGetStringResult() {
 
         try {
@@ -150,6 +187,12 @@ private String _doNetworkCallAndGetStringResult() {
         return String.valueOf(_counter);
     }
 
+    private int _getSecondHand() {
+        long millis = System.currentTimeMillis();
+        return (int) (TimeUnit.MILLISECONDS.toSeconds(millis) -
+                      TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
+    }
+
     private void _log(String logMsg) {
         if (_isCurrentlyOnMainThread()) {
             _logs.add(0, logMsg + " (main thread) ");
@@ -174,7 +217,6 @@ private void _setupLogger() {
         _logs = new ArrayList<>();
         _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
         _logsList.setAdapter(_adapter);
-        _subscriptions = _unsubscribeAndGetNewCompositeSub(_subscriptions);
         _counter = 0;
     }
 
@@ -183,7 +225,7 @@ private boolean _isCurrentlyOnMainThread() {
     }
 
     private class LogAdapter
-            extends ArrayAdapter<String> {
+          extends ArrayAdapter<String> {
 
         public LogAdapter(Context context, List<String> logs) {
             super(context, R.layout.item_log, R.id.item_log, logs);

From 1efd68d284b3e079b35bfcaa2e874f72a78cdfbc Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 25 Feb 2016 18:49:13 -0800
Subject: [PATCH 149/260] feat: add a randomly long task to check poll is
 respected

---
 .../rxjava/fragments/PollingFragment.java     | 31 +++++++++++++------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 8d7d9933..51982d3a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -34,6 +34,7 @@ public class PollingFragment
 
     private static final int INITIAL_DELAY = 0;
     private static final int POLLING_INTERVAL = 1000;
+    private static final int POLL_COUNT = 8;
 
     @Bind(R.id.list_threading_log) ListView _logsList;
 
@@ -66,24 +67,28 @@ public void onDestroy() {
 
     @OnClick(R.id.btn_start_simple_polling)
     public void onStartSimplePollingClicked() {
+
+        final int pollCount = POLL_COUNT;
+
         _subscriptions.add(//
               Observable.interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
                     .map(new Func1<Long, String>() {
                         @Override
                         public String call(Long heartBeat) {
-                            return _doNetworkCallAndGetStringResult();
+                            return _doNetworkCallAndGetStringResult(heartBeat);
                         }
-                    }).take(5)
+                    }).take(pollCount)
                     .doOnSubscribe(new Action0() {
                         @Override
                         public void call() {
-                            _log(String.format("Simple String polling - %s", _counter));
+                            _log(String.format("Start simple polling - %s", _counter));
                         }
                     })
                     .subscribe(new Action1<String>() {
                         @Override
-                        public void call(String s) {
-                            _log(String.format("Start simple polling - %s", s));
+                        public void call(String taskName) {
+                            _log(String.format(Locale.US, "Executing polled task [%s] now time : [xx:%02d]",
+                                  taskName, _getSecondHand()));
                         }
                     })
         );
@@ -94,14 +99,14 @@ public void onStartIncreasinglyDelayedPolling() {
         _setupLogger();
 
         final int pollingInterval = POLLING_INTERVAL;
-        final int repeatLimit = 5;
+        final int pollCount = POLL_COUNT;
 
         _log(String.format(Locale.US, "Start increasingly delayed polling now time: [xx:%02d]",
               _getSecondHand()));
 
         _subscriptions.add(//
               Observable.just(1)
-                    .repeatWhen(new RepeatWithDelay(repeatLimit, pollingInterval))
+                    .repeatWhen(new RepeatWithDelay(pollCount, pollingInterval))
                     .subscribe(new Action1<Object>() {
                         @Override
                         public void call(Object o) {
@@ -175,10 +180,16 @@ public Observable<?> call(Void blah) {
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 
-    private String _doNetworkCallAndGetStringResult() {
-
+    private String _doNetworkCallAndGetStringResult(long attempt) {
         try {
-            Thread.sleep(3000);
+            if (attempt == 4) {
+                // randomly make one event super long so we test that the repeat logic waits
+                // and accounts for this.
+                Thread.sleep(9000);
+            } else {
+                Thread.sleep(3000);
+            }
+
         } catch (InterruptedException e) {
             Timber.d("Operation was interrupted");
         }

From 718493d4928b192119cc443622c796b516d4a5da Mon Sep 17 00:00:00 2001
From: Fabin Paul <fabinpaul92@gmail.com>
Date: Wed, 16 Mar 2016 15:32:45 +0530
Subject: [PATCH 150/260] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 1bc599dc..58a774e8 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Since it was a presentation, Jake only put up the most important code snippets i
 
 ### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
 
 
              (flatmap)

From d15f57c1c41167b65672224da3f2a1ed7bb92406 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 7 Apr 2016 22:48:05 -0700
Subject: [PATCH 151/260] chore: add simple core helper utils

---
 app/build.gradle | 9 +++++----
 build.gradle     | 3 +++
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 209d4a41..b4654798 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,16 +1,17 @@
 apply plugin: 'com.android.application'
 
 dependencies {
-    compile 'com.android.support:support-v13:23.1.1'
-    compile 'com.android.support:appcompat-v7:23.1.1'
+    compile 'com.android.support:support-v13:23.2.1'
+    compile 'com.android.support:appcompat-v7:23.2.1'
 
     compile 'io.reactivex:rxandroid:1.0.1'
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
     compile 'io.reactivex:rxjava:1.0.14'
     compile 'io.reactivex:rxjava-math:1.0.0'
+    compile 'io.reactivex:rxjava-math:1.0.0'
+    compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
-
     compile 'com.jakewharton:butterknife:7.0.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile 'com.squareup.retrofit2:retrofit:2.0.0-beta3'
@@ -30,7 +31,7 @@ android {
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
-        minSdkVersion 14
+        minSdkVersion 15
         targetSdkVersion 22
         versionCode 1
         versionName "1.0"
diff --git a/build.gradle b/build.gradle
index ae7242c0..69e94a11 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,5 +16,8 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven {
+            url "https://jitpack.io"
+        }
     }
 }

From e526882a1be3c29b0baf46bf8d3c697d7434095e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 7 Apr 2016 22:49:39 -0700
Subject: [PATCH 152/260] fix: filter empty texts in search debouncer

---
 .../rxjava/fragments/DebounceSearchEmitterFragment.java     | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 86ebe05e..88aa11b5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -72,6 +72,12 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 
         _subscription = RxTextView.textChangeEvents(_inputSearchText)//
               .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
+              .filter(new Func1<TextViewTextChangeEvent, Boolean>() {
+                  @Override
+                  public Boolean call(TextViewTextChangeEvent changes) {
+                      return CoreNullnessUtils.isNotNullOrEmpty(_inputSearchText.getText().toString());
+                  }
+              })
               .observeOn(AndroidSchedulers.mainThread())//
               .subscribe(_getSearchObserver());
     }

From 1e7d4b2f867a97b32a0cde81cb488c3d17d4952f Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 7 Apr 2016 23:14:57 -0700
Subject: [PATCH 153/260] fix: use unsubscriptions.clear instead of unsubscribe

See Dan's point in this:
https://speakerdeck.com/dlew/common-rxjava-mistakes

unsubscribe terminates future subscriptions
---
 .../com/morihacky/android/rxjava/RxUtils.java |  9 ------
 .../rxjava/fragments/BufferDemoFragment.java  |  4 +--
 ...ConcurrencyWithSchedulersDemoFragment.java |  2 +-
 .../DebounceSearchEmitterFragment.java        |  5 +--
 .../DoubleBindingTextViewFragment.java        |  3 +-
 .../fragments/ExponentialBackoffFragment.java |  9 +-----
 .../FormValidationCombineLatestFragment.java  |  8 +----
 .../rxjava/fragments/PollingFragment.java     | 14 ++++++--
 .../fragments/PseudoCacheConcatFragment.java  |  8 -----
 .../fragments/PseudoCacheMergeFragment.java   | 14 ++------
 .../rxjava/fragments/RetrofitFragment.java    | 32 +++++++++----------
 .../fragments/RotationPersist1Fragment.java   |  9 +-----
 .../fragments/RotationPersist2Fragment.java   |  9 +-----
 .../rxjava/fragments/TimeoutDemoFragment.java |  3 +-
 .../rxjava/fragments/TimingDemoFragment.java  |  7 ++--
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  2 +-
 .../rxbus/RxBusDemo_Bottom2Fragment.java      |  2 +-
 .../rxjava/volley/VolleyDemoFragment.java     | 14 +++++---
 18 files changed, 58 insertions(+), 96 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java b/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
index 100b9aa0..c32d0537 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
@@ -1,7 +1,6 @@
 package com.morihacky.android.rxjava;
 
 import rx.Subscription;
-import rx.subscriptions.CompositeSubscription;
 
 public class RxUtils {
 
@@ -10,12 +9,4 @@ public static void unsubscribeIfNotNull(Subscription subscription) {
             subscription.unsubscribe();
         }
     }
-
-    public static CompositeSubscription getNewCompositeSubIfUnsubscribed(CompositeSubscription subscription) {
-        if (subscription == null || subscription.isUnsubscribed()) {
-            return new CompositeSubscription();
-        }
-
-        return subscription;
-    }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index f6e10a24..79262789 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -53,8 +53,8 @@ public class BufferDemoFragment
     private Subscription _subscription;
 
     @Override
-    public void onStart() {
-        super.onStart();
+    public void onResume() {
+        super.onResume();
         _subscription = _getBufferedSubscription();
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index e97e0b62..dec37204 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -42,8 +42,8 @@ public class ConcurrencyWithSchedulersDemoFragment
     @Override
     public void onDestroy() {
         super.onDestroy();
-        RxUtils.unsubscribeIfNotNull(_subscription);
         ButterKnife.unbind(this);
+        RxUtils.unsubscribeIfNotNull(_subscription);
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 88aa11b5..791fad24 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -15,7 +15,6 @@
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -24,9 +23,11 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import co.kaush.core.util.CoreNullnessUtils;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
+import rx.functions.Func1;
 import timber.log.Timber;
 
 import static java.lang.String.format;
@@ -45,7 +46,7 @@ public class DebounceSearchEmitterFragment
     @Override
     public void onDestroy() {
         super.onDestroy();
-        RxUtils.unsubscribeIfNotNull(_subscription);
+        _subscription.unsubscribe();
         ButterKnife.unbind(this);
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index e3891c4a..fa4e4601 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -9,7 +9,6 @@
 import android.widget.TextView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
@@ -70,7 +69,7 @@ public void onNumberChanged() {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        RxUtils.unsubscribeIfNotNull(_subscription);
+        _subscription.unsubscribe();
         ButterKnife.unbind(this);
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index 1450de2c..e3facad5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -9,7 +9,6 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
 import java.util.ArrayList;
@@ -38,12 +37,6 @@ public class ExponentialBackoffFragment
 
     private CompositeSubscription _subscriptions = new CompositeSubscription();
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
-    }
-
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
@@ -63,7 +56,7 @@ public View onCreateView(LayoutInflater inflater,
     public void onPause() {
         super.onPause();
 
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
+        _subscriptions.clear();
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index b3301c4c..c7841dd7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -10,7 +10,6 @@
 
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
@@ -55,16 +54,11 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscription);
-    }
-
     @Override
     public void onDestroyView() {
         super.onDestroyView();
         ButterKnife.unbind(this);
+        _subscription.unsubscribe();
     }
 
     private void _combineLatestEvents() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 51982d3a..fedc9cd6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -12,7 +12,6 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -40,9 +39,18 @@ public class PollingFragment
 
     private LogAdapter _adapter;
     private List<String> _logs;
-    private CompositeSubscription _subscriptions = new CompositeSubscription();
+
+    private CompositeSubscription _subscriptions;
     private int _counter = 0;
 
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        _subscriptions = new CompositeSubscription();
+    }
+
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
@@ -61,7 +69,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onDestroy() {
         super.onDestroy();
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
+        _subscriptions.unsubscribe();
         ButterKnife.unbind(this);
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index f4affcbc..fbd6f179 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -9,7 +9,6 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
@@ -33,7 +32,6 @@ public class PseudoCacheConcatFragment
 
     @Bind(R.id.log_list) ListView _resultList;
 
-    private Subscription _subscription = null;
     private HashMap<String, Long> _contributionMap = null;
     private ArrayAdapter<String> _adapter;
 
@@ -47,12 +45,6 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscription);
-    }
-
     @Override
     public void onDestroyView() {
         super.onDestroyView();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index cd27c8ed..6c4a6fc6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -10,7 +10,6 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
@@ -24,7 +23,6 @@
 import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
-import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.functions.Func1;
 import rx.schedulers.Schedulers;
@@ -34,27 +32,21 @@ public class PseudoCacheMergeFragment
       extends BaseFragment {
 
     @Bind(R.id.log_list) ListView _resultList;
+
     private ArrayAdapter<String> _adapter;
     private HashMap<String, Long> _contributionMap = null;
     private HashMap<Contributor, Long> _resultAgeMap = new HashMap<>();
-    private Subscription _subscription = null;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
-          @Nullable ViewGroup container,
-          @Nullable Bundle savedInstanceState) {
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
         ButterKnife.bind(this, layout);
         _initializeCache();
         return layout;
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscription);
-    }
-
     @Override
     public void onDestroyView() {
         super.onDestroyView();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 32ee5208..04c1dde2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -10,17 +10,19 @@
 import android.widget.ArrayAdapter;
 import android.widget.EditText;
 import android.widget.ListView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
 import com.morihacky.android.rxjava.retrofit.User;
+
 import java.util.ArrayList;
 import java.util.List;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
@@ -42,13 +44,15 @@ public class RetrofitFragment
 
     private ArrayAdapter<String> _adapter;
     private GithubApi _githubService;
-    private CompositeSubscription _subscriptions = new CompositeSubscription();
+    private CompositeSubscription _subscriptions;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         String githubToken = getResources().getString(R.string.github_oauth_token);
         _githubService = GithubService.createGithubService(githubToken);
+
+        _subscriptions = new CompositeSubscription();
     }
 
     @Override
@@ -66,24 +70,18 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
-    }
-
     @Override
     public void onDestroyView() {
         super.onDestroyView();
         ButterKnife.unbind(this);
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _subscriptions.unsubscribe();
+    }
+
     @OnClick(R.id.btn_demo_retrofit_contributors)
     public void onListContributorsClicked() {
         _adapter.clear();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 9a6afd77..6cde3680 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -10,7 +10,6 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
 import java.util.ArrayList;
@@ -92,12 +91,6 @@ public void onNext(Integer integer) {
     // Boilerplate
     // -----------------------------------------------------------------------------------
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
-    }
-
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
@@ -116,7 +109,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
+        _subscriptions.clear();
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index 6c84392d..aadeabb2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -10,7 +10,6 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
 import java.util.ArrayList;
@@ -91,12 +90,6 @@ public void onNext(Integer integer) {
     // Boilerplate
     // -----------------------------------------------------------------------------------
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        _subscriptions = RxUtils.getNewCompositeSubIfUnsubscribed(_subscriptions);
-    }
-
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
@@ -115,7 +108,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        RxUtils.unsubscribeIfNotNull(_subscriptions);
+        _subscriptions.clear();
     }
 
     private void _setupLogger() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index 1c526595..480a6e20 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -10,6 +10,7 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
 import java.util.ArrayList;
@@ -40,7 +41,7 @@ public class TimeoutDemoFragment
     @Override
     public void onDestroy() {
         super.onDestroy();
-        _subscription.unsubscribe();
+        RxUtils.unsubscribeIfNotNull(_subscription);
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 1a5767b8..92556f0e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -9,6 +9,7 @@
 import android.widget.ListView;
 
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
 import java.text.SimpleDateFormat;
@@ -58,9 +59,11 @@ public View onCreateView(LayoutInflater inflater,
     public void onDestroyView() {
         super.onDestroyView();
         ButterKnife.unbind(this);
-    }
 
-    // -----------------------------------------------------------------------------------
+        RxUtils.unsubscribeIfNotNull(_subscription1);
+        RxUtils.unsubscribeIfNotNull(_subscription2);
+    }
+// -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_demo_timing_1)
     public void Btn1_RunSingleTaskAfter2s() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 975f8ce7..c46fb544 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -59,7 +59,7 @@ public void call(Object event) {
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.unsubscribe();
+        _subscriptions.clear();
     }
 
     private void _showTapText() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index b84a6328..d5beaae2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -79,7 +79,7 @@ public void call(List<Object> taps) {
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.unsubscribe();
+        _subscriptions.clear();
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index 44a7c4da..2860a85e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -9,9 +9,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.android.volley.Request;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.JsonObjectRequest;
@@ -19,11 +17,17 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
+import org.json.JSONObject;
+
 import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
-import org.json.JSONObject;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
@@ -62,7 +66,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     @Override
     public void onPause() {
         super.onPause();
-        _compositeSubscription.unsubscribe();
+        _compositeSubscription.clear();
     }
 
     @Override

From 6a7f657285cf04b413ef4d7ec88eceec849540c4 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 7 Apr 2016 23:35:21 -0700
Subject: [PATCH 154/260] --wip--

---
 app/build.gradle                         | 15 +++++++++++----
 build.gradle                             |  2 +-
 gradle/wrapper/gradle-wrapper.properties |  4 ++--
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b4654798..39713e83 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,15 +26,18 @@ dependencies {
 }
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion '23.0.2'
+    compileSdkVersion 'android-N'
+    buildToolsVersion '24.0.0-rc1'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
-        minSdkVersion 15
-        targetSdkVersion 22
+        minSdkVersion 'N'
+        targetSdkVersion 'N'
         versionCode 1
         versionName "1.0"
+        jackOptions {
+            enabled true
+        }
     }
     buildTypes {
         release {
@@ -42,4 +45,8 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 69e94a11..93757fe5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.1'
+        classpath 'com.android.tools.build:gradle:2.1.0-alpha5'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 6d8cccc2..8b688c92 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Feb 25 15:10:50 PST 2016
+#Thu Apr 07 23:27:28 PDT 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip

From a1cd646cf546e9ea773882c9af2f16886641cc30 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 8 Apr 2016 00:04:52 -0700
Subject: [PATCH 155/260] chore: upgrade to jack compiler + ref: to lambdas and
 meth refs

---
 .../rxjava/fragments/BufferDemoFragment.java  |  25 +--
 ...ConcurrencyWithSchedulersDemoFragment.java |  26 ++-
 .../DebounceSearchEmitterFragment.java        |  28 ++--
 .../DoubleBindingTextViewFragment.java        |  14 +-
 .../fragments/ExponentialBackoffFragment.java |  51 ++----
 .../FormValidationCombineLatestFragment.java  |  46 +++---
 .../rxjava/fragments/PollingFragment.java     | 151 ++++++++----------
 .../fragments/PseudoCacheConcatFragment.java  |  11 +-
 .../fragments/PseudoCacheMergeFragment.java   |  17 +-
 .../RetrofitAsyncTaskDeathFragment.java       |   2 +-
 .../rxjava/fragments/RetrofitFragment.java    |  42 ++---
 .../fragments/RotationPersist1Fragment.java   |  12 +-
 .../RotationPersist1WorkerFragment.java       |   8 +-
 .../fragments/RotationPersist2Fragment.java   |  53 +++---
 .../RotationPersist2WorkerFragment.java       |  19 +--
 .../rxjava/fragments/TimeoutDemoFragment.java |  12 +-
 .../rxjava/fragments/TimingDemoFragment.java  |  12 +-
 .../rxjava/retrofit/GithubService.java        |  25 ++-
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  10 +-
 .../rxbus/RxBusDemo_Bottom2Fragment.java      |  17 +-
 .../rxbus/RxBusDemo_Bottom3Fragment.java      |  31 ++--
 .../rxjava/volley/VolleyDemoFragment.java     |  32 ++--
 22 files changed, 230 insertions(+), 414 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 79262789..d52e3571 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -11,7 +11,6 @@
 import android.widget.ListView;
 
 import com.jakewharton.rxbinding.view.RxView;
-import com.jakewharton.rxbinding.view.ViewClickEvent;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
@@ -24,7 +23,6 @@
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
 import timber.log.Timber;
 
 /**
@@ -89,13 +87,10 @@ public View onCreateView(LayoutInflater inflater,
 
     private Subscription _getBufferedSubscription() {
         return RxView.clickEvents(_tapBtn)
-              .map(new Func1<ViewClickEvent, Integer>() {
-                  @Override
-                  public Integer call(ViewClickEvent onClickEvent) {
-                      Timber.d("--------- GOT A TAP");
-                      _log("GOT A TAP");
-                      return 1;
-                  }
+              .map(onClickEvent -> {
+                  Timber.d("--------- GOT A TAP");
+                  _log("GOT A TAP");
+                  return 1;
               })
               .buffer(2, TimeUnit.SECONDS)
               .observeOn(AndroidSchedulers.mainThread())
@@ -130,7 +125,7 @@ public void onNext(List<Integer> integers) {
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
     }
 
@@ -144,13 +139,9 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
+            new Handler(Looper.getMainLooper()).post(() -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
             });
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index dec37204..41d2c9d8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -25,7 +25,6 @@
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
@@ -74,13 +73,10 @@ public void startLongOperation() {
     }
 
     private Observable<Boolean> _getObservable() {
-        return Observable.just(true).map(new Func1<Boolean, Boolean>() {
-            @Override
-            public Boolean call(Boolean aBoolean) {
-                _log("Within Observable");
-                _doSomeLongOperation_thatBlocksCurrentThread();
-                return aBoolean;
-            }
+        return Observable.just(true).map(aBoolean -> {
+            _log("Within Observable");
+            _doSomeLongOperation_thatBlocksCurrentThread();
+            return aBoolean;
         });
     }
 
@@ -137,20 +133,16 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
+            new Handler(Looper.getMainLooper()).post(() -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
             });
         }
     }
 
     private void _setupLogger() {
-        _logs = new ArrayList<String>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 791fad24..aa105020 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -23,13 +23,12 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import co.kaush.core.util.CoreNullnessUtils;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
 import timber.log.Timber;
 
+import static co.kaush.core.util.CoreNullnessUtils.isNotNullOrEmpty;
 import static java.lang.String.format;
 
 public class DebounceSearchEmitterFragment
@@ -71,15 +70,10 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         _setupLogger();
 
-        _subscription = RxTextView.textChangeEvents(_inputSearchText)//
+        _subscription = RxTextView.textChangeEvents(_inputSearchText)
               .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
-              .filter(new Func1<TextViewTextChangeEvent, Boolean>() {
-                  @Override
-                  public Boolean call(TextViewTextChangeEvent changes) {
-                      return CoreNullnessUtils.isNotNullOrEmpty(_inputSearchText.getText().toString());
-                  }
-              })
-              .observeOn(AndroidSchedulers.mainThread())//
+              .filter(changes -> isNotNullOrEmpty(_inputSearchText.getText().toString()))
+              .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_getSearchObserver());
     }
 
@@ -110,8 +104,8 @@ public void onNext(TextViewTextChangeEvent onTextChangeEvent) {
     // Method that help wiring up the example (irrelevant to RxJava)
 
     private void _setupLogger() {
-        _logs = new ArrayList<String>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _logs = new ArrayList<>();
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
     }
 
@@ -125,13 +119,9 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
+            new Handler(Looper.getMainLooper()).post(() -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
             });
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index fa4e4601..a79fb2b5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -14,7 +14,6 @@
 import butterknife.ButterKnife;
 import butterknife.OnTextChanged;
 import rx.Subscription;
-import rx.functions.Action1;
 import rx.subjects.PublishSubject;
 
 import static android.text.TextUtils.isEmpty;
@@ -37,12 +36,11 @@ public View onCreateView(LayoutInflater inflater,
         ButterKnife.bind(this, layout);
 
         _resultEmitterSubject = PublishSubject.create();
-        _subscription = _resultEmitterSubject.asObservable().subscribe(new Action1<Float>() {
-            @Override
-            public void call(Float aFloat) {
-                _result.setText(String.valueOf(aFloat));
-            }
-        });
+        _subscription = _resultEmitterSubject//
+              .asObservable()//
+              .subscribe(aFloat -> {
+                  _result.setText(String.valueOf(aFloat));
+              });
 
         onNumberChanged();
         _number2.requestFocus();
@@ -50,7 +48,7 @@ public void call(Float aFloat) {
         return layout;
     }
 
-    @OnTextChanged({ R.id.double_binding_num1, R.id.double_binding_num2 })
+    @OnTextChanged({R.id.double_binding_num1, R.id.double_binding_num2})
     public void onNumberChanged() {
         float num1 = 0;
         float num2 = 0;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index e3facad5..a1a6374a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -20,7 +20,6 @@
 import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
-import rx.functions.Action0;
 import rx.functions.Func1;
 import rx.observables.MathObservable;
 import rx.subscriptions.CompositeSubscription;
@@ -76,12 +75,8 @@ public void startRetryingWithExponentialBackoffStrategy() {
               Observable//
                     .error(new RuntimeException("testing")) // always fails
                     .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext values sent are ignored)
-                    .doOnSubscribe(new Action0() {
-                        @Override
-                        public void call() {
-                            _log("Attempting the impossible 5 times in intervals of 1s");
-                        }
-                    })//
+                    .doOnSubscribe(() ->
+                          _log("Attempting the impossible 5 times in intervals of 1s"))//
                     .subscribe(new Observer<Object>() {
                         @Override
                         public void onCompleted() {
@@ -109,28 +104,16 @@ public void startExecutingWithExponentialBackoffDelay() {
         _subscriptions.add(//
 
               Observable.range(1, 4)//
-                    .delay(new Func1<Integer, Observable<Integer>>() {
-                        @Override
-                        public Observable<Integer> call(final Integer integer) {
-                            // Rx-y way of doing the Fibonnaci :P
-                            return MathObservable//
-                                  .sumInteger(Observable.range(1, integer))
-                                  .flatMap(new Func1<Integer, Observable<Integer>>() {
-                                      @Override
-                                      public Observable<Integer> call(Integer targetSecondDelay) {
-                                          return Observable.just(integer)
-                                                .delay(targetSecondDelay, TimeUnit.SECONDS);
-                                      }
-                                  });
-                        }
-                    })//
-                    .doOnSubscribe(new Action0() {
-                        @Override
-                        public void call() {
-                            _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
-                                  _getSecondHand()));
-                        }
+                    .delay(integer -> {
+                        // Rx-y way of doing the Fibonnaci :P
+                        return MathObservable//
+                              .sumInteger(Observable.range(1, integer))
+                              .flatMap(targetSecondDelay -> Observable.just(integer)
+                                    .delay(targetSecondDelay, TimeUnit.SECONDS));
                     })//
+                    .doOnSubscribe(() ->
+                          _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
+                                _getSecondHand())))//
                     .subscribe(new Observer<Integer>() {
                         @Override
                         public void onCompleted() {
@@ -167,7 +150,7 @@ private int _getSecondHand() {
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logList.setAdapter(_adapter);
     }
 
@@ -175,13 +158,9 @@ private void _log(String logMsg) {
         _logs.add(logMsg);
 
         // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(new Runnable() {
-
-            @Override
-            public void run() {
-                _adapter.clear();
-                _adapter.addAll(_logs);
-            }
+        new Handler(getMainLooper()).post(() -> {
+            _adapter.clear();
+            _adapter.addAll(_logs);
         });
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index c7841dd7..1a3157bf 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -16,7 +16,6 @@
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
-import rx.functions.Func3;
 import timber.log.Timber;
 
 import static android.text.TextUtils.isEmpty;
@@ -65,35 +64,30 @@ private void _combineLatestEvents() {
         _subscription = Observable.combineLatest(_emailChangeObservable,
               _passwordChangeObservable,
               _numberChangeObservable,
-              new Func3<CharSequence, CharSequence, CharSequence, Boolean>() {
-                  @Override
-                  public Boolean call(CharSequence newEmail,
-                                      CharSequence newPassword,
-                                      CharSequence newNumber) {
-
-                      boolean emailValid = !isEmpty(newEmail) &&
-                                           EMAIL_ADDRESS.matcher(newEmail).matches();
-                      if (!emailValid) {
-                          _email.setError("Invalid Email!");
-                      }
-
-                      boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
-                      if (!passValid) {
-                          _password.setError("Invalid Password!");
-                      }
+              (newEmail, newPassword, newNumber) -> {
 
-                      boolean numValid = !isEmpty(newNumber);
-                      if (numValid) {
-                          int num = Integer.parseInt(newNumber.toString());
-                          numValid = num > 0 && num <= 100;
-                      }
-                      if (!numValid) {
-                          _number.setError("Invalid Number!");
-                      }
+                  boolean emailValid = !isEmpty(newEmail) &&
+                                       EMAIL_ADDRESS.matcher(newEmail).matches();
+                  if (!emailValid) {
+                      _email.setError("Invalid Email!");
+                  }
 
-                      return emailValid && passValid && numValid;
+                  boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
+                  if (!passValid) {
+                      _password.setError("Invalid Password!");
+                  }
 
+                  boolean numValid = !isEmpty(newNumber);
+                  if (numValid) {
+                      int num = Integer.parseInt(newNumber.toString());
+                      numValid = num > 0 && num <= 100;
+                  }
+                  if (!numValid) {
+                      _number.setError("Invalid Number!");
                   }
+
+                  return emailValid && passValid && numValid;
+
               })//
               .subscribe(new Observer<Boolean>() {
                   @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index fedc9cd6..3f4bb82a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -22,8 +22,6 @@
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import rx.Observable;
-import rx.functions.Action0;
-import rx.functions.Action1;
 import rx.functions.Func1;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
@@ -80,24 +78,13 @@ public void onStartSimplePollingClicked() {
 
         _subscriptions.add(//
               Observable.interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
-                    .map(new Func1<Long, String>() {
-                        @Override
-                        public String call(Long heartBeat) {
-                            return _doNetworkCallAndGetStringResult(heartBeat);
-                        }
-                    }).take(pollCount)
-                    .doOnSubscribe(new Action0() {
-                        @Override
-                        public void call() {
-                            _log(String.format("Start simple polling - %s", _counter));
-                        }
-                    })
-                    .subscribe(new Action1<String>() {
-                        @Override
-                        public void call(String taskName) {
-                            _log(String.format(Locale.US, "Executing polled task [%s] now time : [xx:%02d]",
-                                  taskName, _getSecondHand()));
-                        }
+                    .map(this::_doNetworkCallAndGetStringResult)//
+                    .take(pollCount)
+                    .doOnSubscribe(() ->
+                          _log(String.format("Start simple polling - %s", _counter)))
+                    .subscribe(taskName -> {
+                        _log(String.format(Locale.US, "Executing polled task [%s] now time : [xx:%02d]",
+                              taskName, _getSecondHand()));
                     })
         );
     }
@@ -115,17 +102,11 @@ public void onStartIncreasinglyDelayedPolling() {
         _subscriptions.add(//
               Observable.just(1)
                     .repeatWhen(new RepeatWithDelay(pollCount, pollingInterval))
-                    .subscribe(new Action1<Object>() {
-                        @Override
-                        public void call(Object o) {
-                            _log(String.format(Locale.US, "Executing polled task now time : [xx:%02d]",
-                                  _getSecondHand()));
-                        }
-                    }, new Action1<Throwable>() {
-                        @Override
-                        public void call(Throwable e) {
-                            Timber.d(e, "arrrr. Error");
-                        }
+                    .subscribe(o -> {
+                        _log(String.format(Locale.US, "Executing polled task now time : [xx:%02d]",
+                              _getSecondHand()));
+                    }, e -> {
+                        Timber.d(e, "arrrr. Error");
                     })
         );
     }
@@ -140,54 +121,6 @@ public void call(Throwable e) {
 
     // It's 12am in the morning and i feel lazy dammit !!!
 
-    //public static class RepeatWithDelay
-    public class RepeatWithDelay
-          implements Func1<Observable<? extends Void>, Observable<?>> {
-
-        private final int _repeatLimit;
-        private final int _pollingInterval;
-        private int _repeatCount = 1;
-
-        RepeatWithDelay(int repeatLimit, int pollingInterval) {
-            _pollingInterval = pollingInterval;
-            _repeatLimit = repeatLimit;
-        }
-
-        // this is a notificationhandler, all we care about is
-        // the emission "type" not emission "content"
-        // only onNext triggers a re-subscription
-
-        @Override
-        public Observable<?> call(Observable<? extends Void> inputObservable) {
-
-            // it is critical to use inputObservable in the chain for the result
-            // ignoring it and doing your own thing will break the sequence
-
-            return inputObservable.flatMap(new Func1<Void, Observable<?>>() {
-                @Override
-                public Observable<?> call(Void blah) {
-
-
-                    if (_repeatCount >= _repeatLimit) {
-                        // terminate the sequence cause we reached the limit
-                        _log("Completing sequence");
-                        return Observable.empty();
-                    }
-
-                    // since we don't get an input
-                    // we store state in this handler to tell us the point of time we're firing
-                    _repeatCount++;
-
-                    return Observable.timer(_repeatCount * _pollingInterval,
-                          TimeUnit.MILLISECONDS);
-                }
-            });
-        }
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
     private String _doNetworkCallAndGetStringResult(long attempt) {
         try {
             if (attempt == 4) {
@@ -206,6 +139,9 @@ private String _doNetworkCallAndGetStringResult(long attempt) {
         return String.valueOf(_counter);
     }
 
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
     private int _getSecondHand() {
         long millis = System.currentTimeMillis();
         return (int) (TimeUnit.MILLISECONDS.toSeconds(millis) -
@@ -221,20 +157,16 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
+            new Handler(Looper.getMainLooper()).post(() -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
             });
         }
     }
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
         _counter = 0;
     }
@@ -243,6 +175,51 @@ private boolean _isCurrentlyOnMainThread() {
         return Looper.myLooper() == Looper.getMainLooper();
     }
 
+    //public static class RepeatWithDelay
+    public class RepeatWithDelay
+          implements Func1<Observable<? extends Void>, Observable<?>> {
+
+        private final int _repeatLimit;
+        private final int _pollingInterval;
+        private int _repeatCount = 1;
+
+        RepeatWithDelay(int repeatLimit, int pollingInterval) {
+            _pollingInterval = pollingInterval;
+            _repeatLimit = repeatLimit;
+        }
+
+        // this is a notificationhandler, all we care about is
+        // the emission "type" not emission "content"
+        // only onNext triggers a re-subscription
+
+        @Override
+        public Observable<?> call(Observable<? extends Void> inputObservable) {
+
+            // it is critical to use inputObservable in the chain for the result
+            // ignoring it and doing your own thing will break the sequence
+
+            return inputObservable.flatMap(new Func1<Void, Observable<?>>() {
+                @Override
+                public Observable<?> call(Void blah) {
+
+
+                    if (_repeatCount >= _repeatLimit) {
+                        // terminate the sequence cause we reached the limit
+                        _log("Completing sequence");
+                        return Observable.empty();
+                    }
+
+                    // since we don't get an input
+                    // we store state in this handler to tell us the point of time we're firing
+                    _repeatCount++;
+
+                    return Observable.timer(_repeatCount * _pollingInterval,
+                          TimeUnit.MILLISECONDS);
+                }
+            });
+        }
+    }
+
     private class LogAdapter
           extends ArrayAdapter<String> {
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index fbd6f179..e9f85d85 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -22,9 +22,7 @@
 import butterknife.OnClick;
 import rx.Observable;
 import rx.Subscriber;
-import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
 import timber.log.Timber;
 
 public class PseudoCacheConcatFragment
@@ -56,7 +54,7 @@ public void onDemoPseudoCacheClicked() {
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
               R.id.item_log,
-              new ArrayList<String>());
+              new ArrayList<>());
 
         _resultList.setAdapter(_adapter);
         _initializeCache();
@@ -112,12 +110,7 @@ private Observable<Contributor> _getFreshData() {
         String githubToken = getResources().getString(R.string.github_oauth_token);
         GithubApi githubService = GithubService.createGithubService(githubToken);
         return githubService.contributors("square", "retrofit")
-              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                  @Override
-                  public Observable<Contributor> call(List<Contributor> contributors) {
-                      return Observable.from(contributors);
-                  }
-              });
+              .flatMap(Observable::from);
     }
 
     private void _initializeCache() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 6c4a6fc6..fc21f5b8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -24,7 +24,6 @@
 import rx.Observable;
 import rx.Subscriber;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
@@ -55,7 +54,7 @@ public void onDestroyView() {
 
     @OnClick(R.id.btn_start_pseudo_cache)
     public void onDemoPseudoCacheClicked() {
-        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
+        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
 
         _resultList.setAdapter(_adapter);
         _initializeCache();
@@ -126,18 +125,8 @@ private Observable<Pair<Contributor, Long>> _getFreshData() {
         GithubApi githubService = GithubService.createGithubService(githubToken);
 
         return githubService.contributors("square", "retrofit")
-              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                  @Override
-                  public Observable<Contributor> call(List<Contributor> contributors) {
-                      return Observable.from(contributors);
-                  }
-              })
-              .map(new Func1<Contributor, Pair<Contributor, Long>>() {
-                  @Override
-                  public Pair<Contributor, Long> call(Contributor contributor) {
-                      return new Pair<>(contributor, System.currentTimeMillis());
-                  }
-              });
+              .flatMap(Observable::from)
+              .map(contributor -> new Pair<>(contributor, System.currentTimeMillis()));
     }
 
     private void _initializeCache() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 718d9601..5b42e099 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -57,7 +57,7 @@ public View onCreateView(LayoutInflater inflater,
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
               R.id.item_log,
-              new ArrayList<String>());
+              new ArrayList<>());
         //_adapter.setNotifyOnChange(true);
         _resultList.setAdapter(_adapter);
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 04c1dde2..e67695aa 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -26,8 +26,6 @@
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func1;
-import rx.functions.Func2;
 import rx.schedulers.Schedulers;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
@@ -57,13 +55,13 @@ public void onCreate(Bundle savedInstanceState) {
 
     @Override
     public View onCreateView(LayoutInflater inflater,
-          @Nullable ViewGroup container,
-          @Nullable Bundle savedInstanceState) {
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
 
         View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
         ButterKnife.bind(this, layout);
 
-        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<String>());
+        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
         //_adapter.setNotifyOnChange(true);
         _resultList.setAdapter(_adapter);
 
@@ -123,32 +121,14 @@ public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
         _subscriptions.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-              .flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
-                  @Override
-                  public Observable<Contributor> call(List<Contributor> contributors) {
-                      return Observable.from(contributors);
-                  }
-              })
-              .flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
-                  @Override
-                  public Observable<Pair<User, Contributor>> call(Contributor contributor) {
-                      Observable<User> _userObservable = _githubService.user(contributor.login)
-                            .filter(new Func1<User, Boolean>() {
-                                @Override
-                                public Boolean call(User user) {
-                                    return !isEmpty(user.name) && !isEmpty(user.email);
-                                }
-                            });
-
-                      return Observable.zip(_userObservable,
-                            Observable.just(contributor),
-                            new Func2<User, Contributor, Pair<User, Contributor>>() {
-                                @Override
-                                public Pair<User, Contributor> call(User user, Contributor contributor) {
-                                    return new Pair<>(user, contributor);
-                                }
-                            });
-                  }
+              .flatMap(Observable::from)
+              .flatMap(contributor -> {
+                  Observable<User> _userObservable = _githubService.user(contributor.login)
+                        .filter(user -> !isEmpty(user.name) && !isEmpty(user.email));
+
+                  return Observable.zip(_userObservable,
+                        Observable.just(contributor),
+                        Pair::new);
               })
               .subscribeOn(Schedulers.newThread())
               .observeOn(AndroidSchedulers.mainThread())
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 6cde3680..dd48d1b8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -120,7 +120,7 @@ public void onDestroyView() {
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logList.setAdapter(_adapter);
     }
 
@@ -128,13 +128,9 @@ private void _log(String logMsg) {
         _logs.add(0, logMsg);
 
         // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(new Runnable() {
-
-            @Override
-            public void run() {
-                _adapter.clear();
-                _adapter.addAll(_logs);
-            }
+        new Handler(getMainLooper()).post(() -> {
+            _adapter.clear();
+            _adapter.addAll(_logs);
         });
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
index 4c727e1c..2d3ad1b0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
@@ -11,7 +11,6 @@
 
 import rx.Observable;
 import rx.Subscription;
-import rx.functions.Func1;
 import rx.observables.ConnectableObservable;
 
 public class RotationPersist1WorkerFragment
@@ -58,12 +57,7 @@ public void onCreate(Bundle savedInstanceState) {
 
         Observable<Integer> intsObservable =//
               Observable.interval(1, TimeUnit.SECONDS)//
-                    .map(new Func1<Long, Integer>() {
-                        @Override
-                        public Integer call(Long aLong) {
-                            return aLong.intValue();
-                        }
-                    })//
+                    .map(Long::intValue)//
                     .take(20);
 
         // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index aadeabb2..ebbd88fc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -20,7 +20,6 @@
 import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
-import rx.functions.Action0;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
@@ -62,28 +61,24 @@ public void startOperationFromWorkerFrag() {
     public void setStream(Observable<Integer> intStream) {
 
         _subscriptions.add(//
-              intStream.doOnSubscribe(new Action0() {
-                  @Override
-                  public void call() {
-                      _log("Subscribing to intsObservable");
-                  }
-              }).subscribe(new Observer<Integer>() {
-                  @Override
-                  public void onCompleted() {
-                      _log("Observable is complete");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "Error in worker demo frag observable");
-                      _log("Dang! something went wrong.");
-                  }
-
-                  @Override
-                  public void onNext(Integer integer) {
-                      _log(String.format("Worker frag spits out - %d", integer));
-                  }
-              }));
+              intStream.doOnSubscribe(() -> _log("Subscribing to intsObservable"))
+                    .subscribe(new Observer<Integer>() {
+                        @Override
+                        public void onCompleted() {
+                            _log("Observable is complete");
+                        }
+
+                        @Override
+                        public void onError(Throwable e) {
+                            Timber.e(e, "Error in worker demo frag observable");
+                            _log("Dang! something went wrong.");
+                        }
+
+                        @Override
+                        public void onNext(Integer integer) {
+                            _log(String.format("Worker frag spits out - %d", integer));
+                        }
+                    }));
     }
 
     // -----------------------------------------------------------------------------------
@@ -113,7 +108,7 @@ public void onPause() {
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logList.setAdapter(_adapter);
     }
 
@@ -121,13 +116,9 @@ private void _log(String logMsg) {
         _logs.add(0, logMsg);
 
         // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(new Runnable() {
-
-            @Override
-            public void run() {
-                _adapter.clear();
-                _adapter.addAll(_logs);
-            }
+        new Handler(getMainLooper()).post(() -> {
+            _adapter.clear();
+            _adapter.addAll(_logs);
         });
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
index 313d7467..9b82f881 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
@@ -3,12 +3,14 @@
 import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
+
 import com.morihacky.android.rxjava.MainActivity;
+
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+
 import rx.Observable;
 import rx.Subscription;
-import rx.functions.Func1;
 import rx.subjects.PublishSubject;
 import rx.subjects.Subject;
 
@@ -22,7 +24,7 @@ public class RotationPersist2WorkerFragment
     /**
      * Since we're holding a reference to the Master a.k.a Activity/Master Frag
      * remember to explicitly remove the worker fragment or you'll have a mem leak in your hands.
-     *
+     * <p>
      * See {@link MainActivity#onBackPressed()}
      */
     @Override
@@ -51,15 +53,10 @@ public void onCreate(Bundle savedInstanceState) {
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-        _storedIntsSubscription =//
-              Observable.interval(1, TimeUnit.SECONDS)//
-                    .map(new Func1<Long, Integer>() {
-                        @Override
-                        public Integer call(Long aLong) {
-                            return aLong.intValue();
-                        }
-                    })//
-                    .take(20)//
+        _storedIntsSubscription =
+              Observable.interval(1, TimeUnit.SECONDS)
+                    .map(Long::intValue)
+                    .take(20)
                     .subscribe(_intStream);
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index 480a6e20..03e86031 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -150,7 +150,7 @@ public void onNext(String taskType) {
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
     }
 
@@ -164,13 +164,9 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
+            new Handler(Looper.getMainLooper()).post(() -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
             });
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 92556f0e..b34f6f15 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -184,7 +184,7 @@ public void OnClearLog() {
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
     }
 
@@ -192,13 +192,9 @@ private void _log(String logMsg) {
         _logs.add(0, String.format(logMsg + " [MainThread: %b]", getMainLooper() == myLooper()));
 
         // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(new Runnable() {
-
-            @Override
-            public void run() {
-                _adapter.clear();
-                _adapter.addAll(_logs);
-            }
+        new Handler(getMainLooper()).post(() -> {
+            _adapter.clear();
+            _adapter.addAll(_logs);
         });
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
index 021faa07..de14d432 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
@@ -2,12 +2,8 @@
 
 import android.text.TextUtils;
 
-import java.io.IOException;
-
-import okhttp3.Interceptor;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
-import okhttp3.Response;
 import retrofit2.GsonConverterFactory;
 import retrofit2.Retrofit;
 import retrofit2.RxJavaCallAdapterFactory;
@@ -16,23 +12,22 @@
 
 public class GithubService {
 
-    private GithubService() { }
+    private GithubService() {
+    }
 
     public static GithubApi createGithubService(final String githubToken) {
         Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJavaCallAdapterFactory.create())
-                .addConverterFactory(GsonConverterFactory.create())
-                .baseUrl("https://api.github.com");
+              .addConverterFactory(GsonConverterFactory.create())
+              .baseUrl("https://api.github.com");
 
         if (!TextUtils.isEmpty(githubToken)) {
 
-            OkHttpClient client = new OkHttpClient.Builder().addInterceptor(new Interceptor() {
-                @Override public Response intercept(Chain chain) throws IOException {
-                    Request request = chain.request();
-                    Request newReq = request.newBuilder()
-                            .addHeader("Authorization", format("token %s", githubToken))
-                            .build();
-                    return chain.proceed(newReq);
-                }
+            OkHttpClient client = new OkHttpClient.Builder().addInterceptor(chain -> {
+                Request request = chain.request();
+                Request newReq = request.newBuilder()
+                      .addHeader("Authorization", format("token %s", githubToken))
+                      .build();
+                return chain.proceed(newReq);
             }).build();
 
             builder.client(client);
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index c46fb544..6fbbfd3e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -14,7 +14,6 @@
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
-import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
 public class RxBusDemo_Bottom1Fragment
@@ -46,12 +45,9 @@ public void onStart() {
 
         _subscriptions//
               .add(_rxBus.toObserverable()//
-                    .subscribe(new Action1<Object>() {
-                        @Override
-                        public void call(Object event) {
-                            if (event instanceof RxBusDemoFragment.TapEvent) {
-                                _showTapText();
-                            }
+                    .subscribe(event -> {
+                        if (event instanceof RxBusDemoFragment.TapEvent) {
+                            _showTapText();
                         }
                     }));
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index d5beaae2..68570e1e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -19,7 +19,6 @@
 import butterknife.ButterKnife;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Action1;
 import rx.subscriptions.CompositeSubscription;
 
 public class RxBusDemo_Bottom2Fragment
@@ -53,12 +52,9 @@ public void onStart() {
         Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
 
         _subscriptions//
-              .add(tapEventEmitter.subscribe(new Action1<Object>() {
-                  @Override
-                  public void call(Object event) {
-                      if (event instanceof RxBusDemoFragment.TapEvent) {
-                          _showTapText();
-                      }
+              .add(tapEventEmitter.subscribe(event -> {
+                  if (event instanceof RxBusDemoFragment.TapEvent) {
+                      _showTapText();
                   }
               }));
 
@@ -68,11 +64,8 @@ public void call(Object event) {
         _subscriptions//
               .add(debouncedBufferEmitter//
                     .observeOn(AndroidSchedulers.mainThread())//
-                    .subscribe(new Action1<List<Object>>() {
-                        @Override
-                        public void call(List<Object> taps) {
-                            _showTapCount(taps.size());
-                        }
+                    .subscribe(taps -> {
+                        _showTapCount(taps.size());
                     }));
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index b956d58b..6eb189d1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -12,15 +12,11 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 
-import java.util.List;
 import java.util.concurrent.TimeUnit;
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
-import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Action1;
-import rx.functions.Func1;
 import rx.observables.ConnectableObservable;
 import rx.subscriptions.CompositeSubscription;
 
@@ -55,27 +51,18 @@ public void onStart() {
         ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
 
         _subscriptions//
-              .add(tapEventEmitter.subscribe(new Action1<Object>() {
-                  @Override
-                  public void call(Object event) {
-                      if (event instanceof RxBusDemoFragment.TapEvent) {
-                          _showTapText();
-                      }
+              .add(tapEventEmitter.subscribe(event -> {
+                  if (event instanceof RxBusDemoFragment.TapEvent) {
+                      _showTapText();
                   }
               }));
 
-        _subscriptions//
-              .add(tapEventEmitter.publish(new Func1<Observable<Object>, Observable<List<Object>>>() {
-                  @Override
-                  public Observable<List<Object>> call(Observable<Object> stream) {
-                      return stream.buffer(stream.debounce(1, TimeUnit.SECONDS));
-                  }
-              }).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<List<Object>>() {
-                  @Override
-                  public void call(List<Object> taps) {
-                      _showTapCount(taps.size());
-                  }
-              }));
+        _subscriptions
+              .add(tapEventEmitter.publish(stream ->
+                    stream.buffer(stream.debounce(1, TimeUnit.SECONDS)))
+                    .observeOn(AndroidSchedulers.mainThread()).subscribe(taps -> {
+                        _showTapCount(taps.size());
+                    }));
 
         _subscriptions.add(tapEventEmitter.connect());
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index 2860a85e..7e00d4e5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -31,7 +31,6 @@
 import rx.Observable;
 import rx.Observer;
 import rx.android.schedulers.AndroidSchedulers;
-import rx.functions.Func0;
 import rx.schedulers.Schedulers;
 import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
@@ -50,8 +49,8 @@ public class VolleyDemoFragment
 
     @Override
     public View onCreateView(LayoutInflater inflater,
-          @Nullable ViewGroup container,
-          @Nullable Bundle savedInstanceState) {
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_volley, container, false);
         ButterKnife.bind(this, layout);
         return layout;
@@ -76,15 +75,12 @@ public void onDestroyView() {
     }
 
     public Observable<JSONObject> newGetRouteData() {
-        return Observable.defer(new Func0<Observable<JSONObject>>() {
-            @Override
-            public Observable<JSONObject> call() {
-                try {
-                    return Observable.just(getRouteData());
-                } catch (InterruptedException | ExecutionException e) {
-                    Log.e("routes", e.getMessage());
-                    return Observable.error(e);
-                }
+        return Observable.defer(() -> {
+            try {
+                return Observable.just(getRouteData());
+            } catch (InterruptedException | ExecutionException e) {
+                Log.e("routes", e.getMessage());
+                return Observable.error(e);
             }
         });
     }
@@ -138,7 +134,7 @@ private JSONObject getRouteData() throws ExecutionException, InterruptedExceptio
 
     private void _setupLogger() {
         _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<String>());
+        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
         _logsList.setAdapter(_adapter);
     }
 
@@ -152,13 +148,9 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(new Runnable() {
-
-                @Override
-                public void run() {
-                    _adapter.clear();
-                    _adapter.addAll(_logs);
-                }
+            new Handler(Looper.getMainLooper()).post(() -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
             });
         }
     }

From a89840c1954f2f701bdc16a64033882abba4c18f Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Fri, 15 Apr 2016 16:30:56 +1000
Subject: [PATCH 156/260] upgrade: retrofit 2.0.0-beta3 -> 2.0.0

---
 app/build.gradle                                            | 6 +++---
 .../morihacky/android/rxjava/retrofit/GithubService.java    | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b4654798..bad891a1 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -14,9 +14,9 @@ dependencies {
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
     compile 'com.jakewharton:butterknife:7.0.1'
     compile 'com.jakewharton.timber:timber:2.4.2'
-    compile 'com.squareup.retrofit2:retrofit:2.0.0-beta3'
-    compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta3'
-    compile 'com.squareup.retrofit2:converter-gson:2.0.0-beta3'
+    compile 'com.squareup.retrofit2:retrofit:2.0.0'
+    compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0'
+    compile 'com.squareup.retrofit2:converter-gson:2.0.0'
     compile 'com.squareup.okhttp3:okhttp:3.0.1'
     compile 'com.squareup.okhttp3:okhttp-urlconnection:3.0.1'
     compile 'com.mcxiaoke.volley:library:1.0.19'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
index 021faa07..82de2f5b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
@@ -8,9 +8,9 @@
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
-import retrofit2.GsonConverterFactory;
 import retrofit2.Retrofit;
-import retrofit2.RxJavaCallAdapterFactory;
+import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
+import retrofit2.converter.gson.GsonConverterFactory;
 
 import static java.lang.String.format;
 

From 2056294cd485c5804478fed2fb58c80553326dc9 Mon Sep 17 00:00:00 2001
From: Mitchell Tilbrook <marukami.kaito@gmail.com>
Date: Fri, 15 Apr 2016 17:09:01 +1000
Subject: [PATCH 157/260] upgrade: build tools, support library, and target api

---
 app/build.gradle | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b4654798..e12abb50 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,8 +1,12 @@
 apply plugin: 'com.android.application'
 
+buildscript {
+    ext.android_support = '23.3.0'
+}
+
 dependencies {
-    compile 'com.android.support:support-v13:23.2.1'
-    compile 'com.android.support:appcompat-v7:23.2.1'
+    compile "com.android.support:support-v13:$android_support"
+    compile "com.android.support:appcompat-v7:$android_support"
 
     compile 'io.reactivex:rxandroid:1.0.1'
     // Because RxAndroid releases are few and far between, it is recommended you also
@@ -27,12 +31,12 @@ dependencies {
 
 android {
     compileSdkVersion 23
-    buildToolsVersion '23.0.2'
+    buildToolsVersion '23.0.3'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
         minSdkVersion 15
-        targetSdkVersion 22
+        targetSdkVersion 23
         versionCode 1
         versionName "1.0"
     }

From d3ac5512ea271aa4b427f1d1349e5492bd32cdf2 Mon Sep 17 00:00:00 2001
From: Jose Miguel Mendez <miguel@objectivetruth.ca>
Date: Sun, 24 Apr 2016 01:07:13 -0400
Subject: [PATCH 158/260] Removed unused priority variable, was causing
 confusion

If you need to set priority, you have to extend the Request class and override the `getPriority()` function. This seems outside of the scope of this example
---
 .../com/morihacky/android/rxjava/volley/VolleyDemoFragment.java  | 1 -
 1 file changed, 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index 2860a85e..bb9beaf5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -127,7 +127,6 @@ public void onNext(JSONObject jsonObject) {
     private JSONObject getRouteData() throws ExecutionException, InterruptedException {
         RequestFuture<JSONObject> future = RequestFuture.newFuture();
         String url = "http://www.weather.com.cn/adat/sk/101010100.html";
-        final Request.Priority priority = Request.Priority.IMMEDIATE;
         JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, url, future, future);
         MyVolley.getRequestQueue().add(req);
         return future.get();

From c2124daa1c89c0d295e332e0f63bcef7c0c63e0f Mon Sep 17 00:00:00 2001
From: Jose Miguel Mendez <miguel@objectivetruth.ca>
Date: Sun, 24 Apr 2016 01:18:08 -0400
Subject: [PATCH 159/260] Added Javadoc to give more context

Found it a bit confusing trying to wrangle through the code
---
 .../android/rxjava/volley/VolleyDemoFragment.java  | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index bb9beaf5..95304c15 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -75,6 +75,12 @@ public void onDestroyView() {
         ButterKnife.unbind(this);
     }
 
+    /**
+     * Creates and returns an observable generated from the Future returned from 
+     * {@code getRouteData()}. The observable can then be subscribed to as shown in
+     * {@code startVolleyRequest()}
+     * @return Observable<JSONObject>
+     */
     public Observable<JSONObject> newGetRouteData() {
         return Observable.defer(new Func0<Observable<JSONObject>>() {
             @Override
@@ -123,7 +129,13 @@ public void onNext(JSONObject jsonObject) {
                   }
               }));
     }
-
+    /**
+     * Converts the Asynchronous Request into a Synchronous Future that can be used to
+     * block via {@code Future.get()}. Observables require blocking/synchronous functions
+     * @return JSONObject 
+     * @throws ExecutionException
+     * @throws InterruptedException
+     */
     private JSONObject getRouteData() throws ExecutionException, InterruptedException {
         RequestFuture<JSONObject> future = RequestFuture.newFuture();
         String url = "http://www.weather.com.cn/adat/sk/101010100.html";

From a65412698d7b0c283fb16112db8818d0b3f0cffb Mon Sep 17 00:00:00 2001
From: Rashiq <rashiq.z@gmail.com>
Date: Sun, 1 May 2016 14:47:26 +0200
Subject: [PATCH 160/260] Fix typo

---
 app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java         | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java         | 2 +-
 .../android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java         | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index 83f61f46..a324b065 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -20,7 +20,7 @@ public void send(Object o) {
         _bus.onNext(o);
     }
 
-    public Observable<Object> toObserverable() {
+    public Observable<Object> toObservable() {
         return _bus;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index c46fb544..7718fce7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -45,7 +45,7 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         _subscriptions//
-              .add(_rxBus.toObserverable()//
+              .add(_rxBus.toObservable()//
                     .subscribe(new Action1<Object>() {
                         @Override
                         public void call(Object event) {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index d5beaae2..738b4636 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -50,7 +50,7 @@ public void onStart() {
         super.onStart();
         _subscriptions = new CompositeSubscription();
 
-        Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
+        Observable<Object> tapEventEmitter = _rxBus.toObservable().share();
 
         _subscriptions//
               .add(tapEventEmitter.subscribe(new Action1<Object>() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index b956d58b..ad3593da 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -52,7 +52,7 @@ public void onStart() {
         super.onStart();
         _subscriptions = new CompositeSubscription();
 
-        ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
+        ConnectableObservable<Object> tapEventEmitter = _rxBus.toObservable().publish();
 
         _subscriptions//
               .add(tapEventEmitter.subscribe(new Action1<Object>() {

From c29a5d703098b5a8a705e379f4c0721bfb60e753 Mon Sep 17 00:00:00 2001
From: Craig Russell <craig.russell.1986@gmail.com>
Date: Tue, 3 May 2016 14:05:55 +0100
Subject: [PATCH 161/260] remove duplicate

`compile 'io.reactivex:rxjava-math:1.0.0'` was defined twice
---
 app/build.gradle | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b4654798..ab0bd652 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,7 +9,6 @@ dependencies {
     // explicitly depend on RxJava's latest version for bug fixes and new features.
     compile 'io.reactivex:rxjava:1.0.14'
     compile 'io.reactivex:rxjava-math:1.0.0'
-    compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
     compile 'com.jakewharton:butterknife:7.0.1'
@@ -42,4 +41,4 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
-}
\ No newline at end of file
+}

From b83abd13e20e397035dc4a24eb4a1105ee6bf418 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 17 May 2016 07:54:02 -0700
Subject: [PATCH 162/260] fix: upgrade gradle plugin

---
 build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.gradle b/build.gradle
index 93757fe5..3a089e4b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.0-alpha5'
+        classpath 'com.android.tools.build:gradle:2.1.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

From 97721da4b13a028b5b7b29fec8db4eb15b5e6ad0 Mon Sep 17 00:00:00 2001
From: Zhangchong <287424013@qq.com>
Date: Fri, 17 Jun 2016 00:13:42 +0800
Subject: [PATCH 163/260] Update PseudoCacheConcatFragment.java

set correct scheduler for network request.
---
 .../android/rxjava/fragments/PseudoCacheConcatFragment.java      | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index fbd6f179..fd282918 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -62,6 +62,7 @@ public void onDemoPseudoCacheClicked() {
         _initializeCache();
 
         Observable.concat(_getCachedData(), _getFreshData())
+              .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Subscriber<Contributor>() {
                   @Override

From 543e933e851d045e95f6bb6519657c7d029c0a88 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 30 Jun 2016 17:18:19 -0700
Subject: [PATCH 164/260] chore: upgrade libs

---
 app/build.gradle                         | 4 ++--
 build.gradle                             | 2 +-
 gradle/wrapper/gradle-wrapper.properties | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b4654798..015b4791 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,10 +4,10 @@ dependencies {
     compile 'com.android.support:support-v13:23.2.1'
     compile 'com.android.support:appcompat-v7:23.2.1'
 
-    compile 'io.reactivex:rxandroid:1.0.1'
+    compile 'io.reactivex:rxandroid:1.2.0'
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
-    compile 'io.reactivex:rxjava:1.0.14'
+    compile 'io.reactivex:rxjava:1.1.4'
     compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
diff --git a/build.gradle b/build.gradle
index 69e94a11..facb0aa2 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.3.1'
+        classpath 'com.android.tools.build:gradle:2.1.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 6d8cccc2..ed1a3ada 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Feb 25 15:10:50 PST 2016
+#Tue May 17 07:54:26 PDT 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip

From f3d8a23e6f2f6e55adfb650fadbe856381474b64 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 30 Jun 2016 17:24:02 -0700
Subject: [PATCH 165/260] feat: add example for executing task, then with delay

---
 README.md                                     |  1 +
 .../rxjava/fragments/TimingDemoFragment.java  | 45 +++++++++++++++++--
 .../main/res/layout/fragment_demo_timing.xml  | 31 +++++++++----
 app/src/main/res/values/strings.xml           |  2 +-
 4 files changed, 66 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index 1bc599dc..2e15bac4 100644
--- a/README.md
+++ b/README.md
@@ -125,6 +125,7 @@ Cases demonstrated here:
 2. run a task constantly every 1s (there's a delay of 1s before the first task fires off)
 3. run a task constantly every 1s (same as above but there's no delay before the first task fires off)
 4. run a task constantly every 3s, but after running it 5 times, terminate automatically
+5. run a task A, pause for sometime, then execute Task B, then terminate
 
 ### Exponential backoff
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 92556f0e..3e05b06e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -24,6 +24,7 @@
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
+import rx.functions.Action1;
 import timber.log.Timber;
 
 import static android.os.Looper.getMainLooper;
@@ -66,7 +67,7 @@ public void onDestroyView() {
 // -----------------------------------------------------------------------------------
 
     @OnClick(R.id.btn_demo_timing_1)
-    public void Btn1_RunSingleTaskAfter2s() {
+    public void btn1_RunSingleTaskAfter2s() {
         _log(String.format("A1 [%s] --- BTN click", _getCurrentTimestamp()));
 
         Observable.timer(2, TimeUnit.SECONDS)//
@@ -90,7 +91,7 @@ public void onNext(Long number) {
     }
 
     @OnClick(R.id.btn_demo_timing_2)
-    public void Btn2_RunTask_IntervalOf1s() {
+    public void btn2_RunTask_IntervalOf1s() {
         if (_subscription1 != null && !_subscription1.isUnsubscribed()) {
             _subscription1.unsubscribe();
             _log(String.format("B2 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
@@ -120,7 +121,7 @@ public void onNext(Long number) {
     }
 
     @OnClick(R.id.btn_demo_timing_3)
-    public void Btn3_RunTask_IntervalOf1s_StartImmediately() {
+    public void btn3_RunTask_IntervalOf1s_StartImmediately() {
         if (_subscription2 != null && !_subscription2.isUnsubscribed()) {
             _subscription2.unsubscribe();
             _log(String.format("C3 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
@@ -150,7 +151,7 @@ public void onNext(Long number) {
     }
 
     @OnClick(R.id.btn_demo_timing_4)
-    public void Btn4_RunTask5Times_IntervalOf3s() {
+    public void btn4_RunTask5Times_IntervalOf3s() {
         _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));
 
         Observable//
@@ -173,6 +174,42 @@ public void onNext(Long number) {
               });
     }
 
+    @OnClick(R.id.btn_demo_timing_5)
+    public void btn5_RunTask5Times_IntervalOf3s() {
+        _log(String.format("D5 [%s] --- BTN click", _getCurrentTimestamp()));
+
+        Observable.just("Do task A right away")
+              .doOnNext(new Action1<String>() {
+                  @Override
+                  public void call(String input) {
+                      _log(String.format("D5 %s [%s]", input, _getCurrentTimestamp()));
+                  }
+              })
+              .delay(1, TimeUnit.SECONDS)
+              .doOnNext(new Action1<String>() {
+                  @Override
+                  public void call(String oldInput) {
+                      _log(String.format("D5 %s [%s]", "Doing Task B after a delay", _getCurrentTimestamp()));
+                  }
+              })
+              .subscribe(new Observer<String>() {
+                  @Override
+                  public void onCompleted() {
+                      _log(String.format("D5 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "something went wrong in TimingDemoFragment example");
+                  }
+
+                  @Override
+                  public void onNext(String number) {
+                      _log(String.format("D5 [%s]     NEXT", _getCurrentTimestamp()));
+                  }
+              });
+    }
+
     // -----------------------------------------------------------------------------------
     // Method that help wiring up the example (irrelevant to RxJava)
 
diff --git a/app/src/main/res/layout/fragment_demo_timing.xml b/app/src/main/res/layout/fragment_demo_timing.xml
index 4129d5a7..e83be2be 100644
--- a/app/src/main/res/layout/fragment_demo_timing.xml
+++ b/app/src/main/res/layout/fragment_demo_timing.xml
@@ -25,7 +25,6 @@
                 android:gravity="left"
                 android:text="@string/msg_demo_timing"
                 android:layout_span="2"
-
                 />
         </TableRow>
 
@@ -72,6 +71,29 @@
                 android:text="BTN 4"
                 />
         </TableRow>
+
+        <TableRow
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            >
+
+            <Button
+                android:id="@+id/btn_demo_timing_5"
+                android:layout_weight="1"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:text="BTN 5"
+                />
+
+            <Button
+                android:id="@+id/btn_clr"
+                android:src="@android:drawable/ic_menu_close_clear_cancel"
+                android:layout_weight="1"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:text="CLEAR LOG"
+                />
+        </TableRow>
     </TableLayout>
 
 
@@ -87,13 +109,6 @@
             android:layout_height="match_parent"
             android:layout_width="0dp"
             />
-
-        <ImageButton
-            android:id="@+id/btn_clr"
-            android:src="@android:drawable/ic_menu_close_clear_cancel"
-            android:layout_height="wrap_content"
-            android:layout_width="wrap_content"
-            />
     </LinearLayout>
 
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f4b54a64..852444cc 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -32,6 +32,6 @@
     <string name="msg_demo_exponential_backoff">These two examples demonstrate retrying and executing with a delay using an exponential backoff strategy.</string>
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
-    <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete)</string>
+    <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete) \nBTN 5: run task A, pause for sometime, then proceed with Task B</string>
     <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
 </resources>

From d938197dea5636ea8e61d4de71397ce56d53a71d Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 30 Jun 2016 17:44:28 -0700
Subject: [PATCH 166/260] fix: point to self hosted versions of blog post

---
 README.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 2e15bac4..d85e4780 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Learning RxJava for Android by example
 ==============
 
-This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://nerds.weddingpartyapp.com/tech/2014/09/15/learning-rxjava-with-android-by-example/).
+This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://blog.kaush.co/2014/09/15/learning-rxjava-with-android-by-example/).
 
 I also gave a talk at a local meetup about warming up to RxJava here. Here's a link to the [video and slides](https://newcircle.com/s/post/1744/2015/06/29/learning-rxjava-for-android-by-example).
 
@@ -25,7 +25,7 @@ If you hit the button once, you'll get a message saying the button was hit once.
 
 Note:
 
-If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/).
+If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/).
 
 ### Instant/Auto searching (subject + debounce)
 
@@ -85,9 +85,9 @@ An alternative approach to delayed polling without the use of `repeatWhen` would
 
 Have a look at the accompanying blog posts for details on this demo:
 
-1. [Implementing an event bus with RxJava](http://nerds.weddingpartyapp.com/tech/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
-2. [DebouncedBuffer used for the fancier variant of the demo](http://nerds.weddingpartyapp.com/tech/2014/12/24/secret-bonus-part-debouncedbuffer-used-in-rxbus-example/)
-3. [share/publish/refcount](http://nerds.weddingpartyapp.com/tech/2015/01/21/rxjava-share-publish-refcount-and-all-that-jazz/)
+1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
+2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
+3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
 
 ### Form validation - using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
 

From 2efb58ac7aeaad6776e3c035b8e9176aaae1635c Mon Sep 17 00:00:00 2001
From: KG <code@kaush.co>
Date: Sun, 21 Aug 2016 12:52:12 -0700
Subject: [PATCH 167/260] fix: casting

---
 .../android/rxjava/fragments/RetrofitFragment.java       | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index e67695aa..4a0a31bb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -25,6 +25,7 @@
 import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
+import rx.Subscriber;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import rx.subscriptions.CompositeSubscription;
@@ -132,7 +133,7 @@ public void onListContributorsWithFullUserInfoClicked() {
               })
               .subscribeOn(Schedulers.newThread())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<Pair<User, Contributor>>() {
+              .subscribe(new Subscriber<Pair>() {
                   @Override
                   public void onCompleted() {
                       Timber.d("Retrofit call 2 completed ");
@@ -144,9 +145,9 @@ public void onError(Throwable e) {
                   }
 
                   @Override
-                  public void onNext(Pair<User, Contributor> pair) {
-                      User user = pair.first;
-                      Contributor contributor = pair.second;
+                  public void onNext(Pair pair) {
+                      User user = ((Pair<User, Contributor>)pair).first;
+                      Contributor contributor = ((Pair<User, Contributor>)pair).second;
 
                       _adapter.add(format("%s(%s) has made %d contributions to %s",
                             user.name,

From c66b826c389253a2dc80d4a16b592db7a127c42b Mon Sep 17 00:00:00 2001
From: KG <code@kaush.co>
Date: Sun, 21 Aug 2016 13:07:31 -0700
Subject: [PATCH 168/260] chore: update bulid.gradle

---
 app/build.gradle | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 39713e83..31d2329e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,13 +26,13 @@ dependencies {
 }
 
 android {
-    compileSdkVersion 'android-N'
-    buildToolsVersion '24.0.0-rc1'
+    compileSdkVersion 23
+    buildToolsVersion  '24rc4'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
-        minSdkVersion 'N'
-        targetSdkVersion 'N'
+        minSdkVersion 15
+        targetSdkVersion 24
         versionCode 1
         versionName "1.0"
         jackOptions {

From c370300bc77875d51c27e6bb6989a1faeec76312 Mon Sep 17 00:00:00 2001
From: KG <code@kaush.co>
Date: Sun, 21 Aug 2016 13:39:56 -0700
Subject: [PATCH 169/260] chore: jack -> retrolambda

---
 app/build.gradle                              | 28 ++++++++++++++-----
 .../fragments/ExponentialBackoffFragment.java |  6 ++--
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 31d2329e..70e0ed80 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,4 +1,21 @@
+buildscript {
+    repositories {
+//        mavenCentral()
+        jcenter()
+    }
+    dependencies {
+        classpath 'me.tatarka:gradle-retrolambda:3.2.5'
+        // can be removed with android-gradle plugin is upgraded to 2.2
+        // https://twitter.com/JakeWharton/status/760836175586267136
+        classpath 'me.tatarka.retrolambda.projectlombok:lombok.ast:0.2.3.a2'
+    }
+
+    // Exclude the lombok version that the android plugin depends on.
+    configurations.classpath.exclude group: 'com.android.tools.external.lombok'
+}
+
 apply plugin: 'com.android.application'
+apply plugin: 'me.tatarka.retrolambda'
 
 dependencies {
     compile 'com.android.support:support-v13:23.2.1'
@@ -27,17 +44,14 @@ dependencies {
 
 android {
     compileSdkVersion 23
-    buildToolsVersion  '24rc4'
+    buildToolsVersion '23.0.3'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
         minSdkVersion 15
-        targetSdkVersion 24
-        versionCode 1
-        versionName "1.0"
-        jackOptions {
-            enabled true
-        }
+        targetSdkVersion 23
+        versionCode 2
+        versionName "1.2"
     }
     buildTypes {
         release {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index a1a6374a..8d60342b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -20,6 +20,7 @@
 import butterknife.OnClick;
 import rx.Observable;
 import rx.Observer;
+import rx.Subscriber;
 import rx.functions.Func1;
 import rx.observables.MathObservable;
 import rx.subscriptions.CompositeSubscription;
@@ -75,8 +76,7 @@ public void startRetryingWithExponentialBackoffStrategy() {
               Observable//
                     .error(new RuntimeException("testing")) // always fails
                     .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext values sent are ignored)
-                    .doOnSubscribe(() ->
-                          _log("Attempting the impossible 5 times in intervals of 1s"))//
+                    .doOnSubscribe(() -> _log("Attempting the impossible 5 times in intervals of 1s"))//
                     .subscribe(new Observer<Object>() {
                         @Override
                         public void onCompleted() {
@@ -114,7 +114,7 @@ public void startExecutingWithExponentialBackoffDelay() {
                     .doOnSubscribe(() ->
                           _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
                                 _getSecondHand())))//
-                    .subscribe(new Observer<Integer>() {
+                    .subscribe(new Subscriber<Integer>() {
                         @Override
                         public void onCompleted() {
                             Timber.d("onCompleted");

From ebf16cddd218ac6fb5c62e585edca6a11d400420 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 1 Oct 2016 19:12:25 -0700
Subject: [PATCH 170/260] chore: bump up AS versions

---
 build.gradle                             | 2 +-
 gradle/wrapper/gradle-wrapper.properties | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/build.gradle b/build.gradle
index 3a089e4b..a06fef3a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.0'
+        classpath 'com.android.tools.build:gradle:2.2.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 8b688c92..a0a2dce4 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Apr 07 23:27:28 PDT 2016
+#Sat Oct 01 19:11:24 PDT 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip

From aa77a492eff4dfffb1b1c79724b6ea682788275a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 7 Oct 2016 18:17:43 -0700
Subject: [PATCH 171/260] chore: add design support library

---
 app/build.gradle | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 76827558..41e1c44f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -17,9 +17,14 @@ buildscript {
 apply plugin: 'com.android.application'
 apply plugin: 'me.tatarka.retrolambda'
 
+ext {
+    supportLibVersion = "24.2.1"
+}
+
 dependencies {
-    compile 'com.android.support:support-v13:23.2.1'
-    compile 'com.android.support:appcompat-v7:23.2.1'
+    compile "com.android.support:support-v13:${supportLibVersion}"
+    compile "com.android.support:appcompat-v7:${supportLibVersion}"
+    compile "com.android.support:recyclerview-v7:${supportLibVersion}"
 
     compile 'io.reactivex:rxandroid:1.2.0'
     // Because RxAndroid releases are few and far between, it is recommended you also

From c847664e83acd5635bf8fd1747cda167ba0c7422 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 7 Oct 2016 18:25:28 -0700
Subject: [PATCH 172/260] feat: add a simple pagination example

drop dead simple pagination example using the power of Subjects

addresses #8 (and a closed #6)
---
 .../rxjava/fragments/MainFragment.java        |  10 +-
 .../rxjava/pagination/PaginationFragment.java | 215 ++++++++++++++++++
 app/src/main/res/layout/fragment_main.xml     |   8 +
 .../main/res/layout/fragment_pagination.xml   |  32 +++
 app/src/main/res/layout/item_btn.xml          |  12 +
 app/src/main/res/layout/item_log.xml          |  11 +-
 app/src/main/res/values/strings.xml           |   3 +
 7 files changed, 286 insertions(+), 5 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
 create mode 100644 app/src/main/res/layout/fragment_pagination.xml
 create mode 100644 app/src/main/res/layout/item_btn.xml

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index b8df6c3e..cb48e4ef 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -7,14 +7,15 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+
 import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.pagination.PaginationFragment;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
+import com.morihacky.android.rxjava.volley.VolleyDemoFragment;
 
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 
-import com.morihacky.android.rxjava.volley.VolleyDemoFragment;
-
 public class MainFragment
       extends BaseFragment {
 
@@ -94,6 +95,11 @@ void demoRotationPersist() {
         //clickedOn(new RotationPersist1Fragment());
     }
 
+    @OnClick(R.id.btn_demo_pagination)
+    void demoPaging() {
+        clickedOn(new PaginationFragment());
+    }
+
     @OnClick(R.id.btn_demo_volley)
     void demoVolleyRequest() {
         clickedOn(new VolleyDemoFragment());
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
new file mode 100644
index 00000000..38aa9220
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -0,0 +1,215 @@
+package com.morihacky.android.rxjava.pagination;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.morihacky.android.rxjava.MainActivity;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
+import com.morihacky.android.rxjava.rxbus.RxBus;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import rx.Observable;
+import rx.Subscription;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.subjects.PublishSubject;
+import rx.subscriptions.CompositeSubscription;
+
+public class PaginationFragment extends BaseFragment {
+
+    @Bind(R.id.list_paging) RecyclerView _pagingList;
+    @Bind(R.id.progress_paging) ProgressBar _progressBar;
+
+    private CompositeSubscription _subscriptions;
+    private TestAdapter _adapter;
+    private RxBus _bus;
+    private PublishSubject<Integer> _paginator;
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        _bus = ((MainActivity) getActivity()).getRxBusSingleton();
+
+        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
+        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
+        _pagingList.setLayoutManager(layoutManager);
+
+        _adapter = new TestAdapter(_bus);
+        _pagingList.setAdapter(_adapter);
+
+        _paginator = PublishSubject.create();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        _subscriptions = new CompositeSubscription();
+
+        Subscription s2 =//
+              _paginator//
+                    .flatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .map(items -> {
+                        int start = _adapter.getItemCount() - 1;
+
+                        _adapter.addItems(items);
+                        _adapter.notifyItemRangeInserted(start, 10);
+
+                        _progressBar.setVisibility(View.INVISIBLE);
+                        return null;
+                    })//
+                    .subscribe();
+
+        // I'm using an Rxbus purely to hear from a nested button click
+        // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
+        Subscription s1 = _bus.toObserverable().subscribe(event -> {
+            if (event instanceof ItemBtnViewHolder.PageEvent) {
+
+                // trigger the paginator for the next event
+                int nextPage = _adapter.getItemCount() - 1;
+                _paginator.onNext(nextPage);
+
+            }
+        });
+
+        _subscriptions.add(s1);
+        _subscriptions.add(s2);
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        _subscriptions.clear();
+    }
+
+    /**
+     * Fake Observable that simulates a network call and then sends down a list of items
+     */
+    private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
+        return Observable.just(true)
+              .observeOn(AndroidSchedulers.mainThread())
+              .doOnNext(dummy -> _progressBar.setVisibility(View.VISIBLE))
+              .delay(2, TimeUnit.SECONDS)
+              .map(dummy -> {
+                  List<String> items = new ArrayList<>();
+                  for (int i = 0; i < count; i++) {
+                      items.add("Item " + (start + i));
+                  }
+                  return items;
+              });
+    }
+
+
+    // -----------------------------------------------------------------------------------
+    // WIRING up the views required for this example
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
+    }
+
+
+    private static class TestAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+
+        static final int ITEM_LOG = 0;
+        static final int ITEM_BTN = 1;
+
+        final List<String> _items = new ArrayList<>();
+        final RxBus _bus;
+
+        TestAdapter(RxBus bus) {
+            _bus = bus;
+        }
+
+        void addItems(List<String> items) {
+            _items.addAll(items);
+        }
+
+        @Override
+        public int getItemViewType(int position) {
+            if (position == _items.size()) {
+                return ITEM_BTN;
+            }
+
+            return ITEM_LOG;
+        }
+
+        @Override
+        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            switch (viewType) {
+                case ITEM_BTN:
+                    return ItemBtnViewHolder.create(parent);
+                default:
+                    return ItemLogViewHolder.create(parent);
+            }
+        }
+
+        @Override
+        public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+            switch (getItemViewType(position)) {
+                case ITEM_LOG:
+                    ((ItemLogViewHolder) holder).bindContent(_items.get(position));
+                    return;
+                case ITEM_BTN:
+                    ((ItemBtnViewHolder) holder).bindContent(_bus);
+            }
+        }
+
+        @Override
+        public int getItemCount() {
+            return _items.size() + 1; // add 1 for paging button
+        }
+    }
+
+    private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
+        ItemLogViewHolder(View itemView) {
+            super(itemView);
+        }
+
+        static ItemLogViewHolder create(ViewGroup parent) {
+            return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
+                  .inflate(R.layout.item_log, parent, false));
+        }
+
+        void bindContent(String content) {
+            ((TextView) itemView).setText(content);
+        }
+    }
+
+    private static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
+        ItemBtnViewHolder(View itemView) {
+            super(itemView);
+        }
+
+        static ItemBtnViewHolder create(ViewGroup parent) {
+            return new ItemBtnViewHolder(LayoutInflater.from(parent.getContext())
+                  .inflate(R.layout.item_btn, parent, false));
+        }
+
+        void bindContent(RxBus bus) {
+            ((Button) itemView).setText(R.string.btn_demo_pagination_more);
+            itemView.setOnClickListener(v -> bus.send(new PageEvent()));
+        }
+
+        static class PageEvent {
+        }
+    }
+}
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 66fc53f4..96aa931a 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -99,11 +99,19 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_rotation_persist"
             />
+
         <Button
             android:id="@+id/btn_demo_volley"
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:text="@string/btn_demo_volley"
             />
+
+        <Button
+            android:id="@+id/btn_demo_pagination"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_pagination"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_pagination.xml b/app/src/main/res/layout/fragment_pagination.xml
new file mode 100644
index 00000000..2302145c
--- /dev/null
+++ b/app/src/main/res/layout/fragment_pagination.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    >
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="@dimen/activity_horizontal_margin"
+        android:text="@string/msg_demo_pagination"
+        />
+
+    <ProgressBar
+        android:id="@+id/progress_paging"
+        style="@style/Widget.AppCompat.ProgressBar.Horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:indeterminate="true"
+        android:visibility="invisible"
+        />
+
+    <android.support.v7.widget.RecyclerView
+        android:id="@+id/list_paging"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_btn.xml b/app/src/main/res/layout/item_btn.xml
new file mode 100644
index 00000000..a922a39f
--- /dev/null
+++ b/app/src/main/res/layout/item_btn.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<Button
+    android:id="@+id/item_btn"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="@dimen/activity_horizontal_margin"
+
+    android:text="I AMZ BTN"
+    />
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_log.xml b/app/src/main/res/layout/item_log.xml
index b21212b2..97a3ab6a 100644
--- a/app/src/main/res/layout/item_log.xml
+++ b/app/src/main/res/layout/item_log.xml
@@ -2,9 +2,14 @@
 
 <TextView
     android:id="@+id/item_log"
-    android:layout_height="match_parent"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+
     android:layout_width="match_parent"
-    android:textSize="12sp"
+    android:layout_height="wrap_content"
+    android:paddingEnd="@dimen/activity_horizontal_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingStart="@dimen/activity_horizontal_margin"
     android:text="Item Log goes here"
-    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:textSize="@dimen/text_medium"
     />
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 852444cc..d9ff692e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -20,6 +20,9 @@
     <string name="btn_demo_exponential_backoff">Exponential backoff</string>
     <string name="btn_demo_rotation_persist">Rotation persist</string>
     <string name="btn_demo_volley">Volley request demo</string>
+    <string name="btn_demo_pagination">Paging example</string>
+    <string name="btn_demo_pagination_more">MOAR</string>
+    <string name="msg_demo_pagination">This is a demo of how you can do a list pagination with Rx. We page 10 items at a time and there are 55 items altogether</string>
     <string name="msg_demo_volley">This is a Volley request demo</string>
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
     <string name="msg_demo_buffer">This is a demo of how events can be accumulated using the "buffer" operation. Tap the button below repetitively and you will notice in the logs that button taps are collected over a span of 2s and printed below.</string>

From 6fd11b4c681c0eb4cfefab8e20e09a8e096647c2 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 7 Oct 2016 18:38:47 -0700
Subject: [PATCH 173/260] fix: update README and concatMap

---
 README.md                                          | 14 +++++++++-----
 .../rxjava/pagination/PaginationFragment.java      |  2 +-
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index d85e4780..2cc3b666 100644
--- a/README.md
+++ b/README.md
@@ -162,16 +162,20 @@ Hit the start button and rotate the screen to your heart's content; you'll see t
 
 *There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-## Work in Progress:
+### Pagination
 
-Examples that I would like to have here, but haven't found the time yet to flush out.
+I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
 
+This example basically sends the page number to a Subject, and the subject handles adding the items. Notice the use of `concatMap` and the return of an `Observable<List>` from `_itemsFromNetworkCall`.
 
-### Pagination
+Here are some other fancy implementations (while i enjoyed reading them, i didn't land up using them for my real world app cause personally i don't think it's necessary):
 
-a. Simple pagination
-b. Optimized pagination
+* [Matthias example of an Rx based pager](https://gist.github.com/mttkay/24881a0ce986f6ec4b4d)
+* [Recursive Paging example](http://stackoverflow.com/questions/28047272/handle-paging-with-rxjava)
 
+## Work in Progress:
+
+Examples that I would like to have here, but haven't found the time yet to flush out.
 
 ## Contributing:
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index 38aa9220..0540971e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -61,7 +61,7 @@ public void onStart() {
 
         Subscription s2 =//
               _paginator//
-                    .flatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
+                    .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
                     .observeOn(AndroidSchedulers.mainThread())
                     .map(items -> {
                         int start = _adapter.getItemCount() - 1;

From dedadafd88cd3a5a926d4a7f2761822a43121569 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Fri, 7 Oct 2016 18:49:51 -0700
Subject: [PATCH 174/260] fix: upgrade RxBus -> Relay

* change from a regular Subject -> Relay (thanks Jake!) cause we don't
want that subject terminating in between
* change signature to asObjservable to mirror the Subject apis
---
 app/build.gradle                               |  1 +
 .../rxjava/pagination/PaginationFragment.java  |  2 +-
 .../morihacky/android/rxjava/rxbus/RxBus.java  | 18 +++++++-----------
 .../rxbus/RxBusDemo_Bottom1Fragment.java       |  2 +-
 .../rxbus/RxBusDemo_Bottom2Fragment.java       |  2 +-
 .../rxbus/RxBusDemo_Bottom3Fragment.java       |  2 +-
 6 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 41e1c44f..c3c80865 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -35,6 +35,7 @@ dependencies {
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
     compile 'com.jakewharton:butterknife:7.0.1'
+    compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile 'com.squareup.retrofit2:retrofit:2.0.0-beta3'
     compile 'com.squareup.retrofit2:adapter-rxjava:2.0.0-beta3'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index 0540971e..f4988f97 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -76,7 +76,7 @@ public void onStart() {
 
         // I'm using an Rxbus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
-        Subscription s1 = _bus.toObserverable().subscribe(event -> {
+        Subscription s1 = _bus.asObserverable().subscribe(event -> {
             if (event instanceof ItemBtnViewHolder.PageEvent) {
 
                 // trigger the paginator for the next event
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index 83f61f46..9d58d1b0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -1,27 +1,23 @@
 package com.morihacky.android.rxjava.rxbus;
 
+import com.jakewharton.rxrelay.PublishRelay;
+import com.jakewharton.rxrelay.Relay;
+
 import rx.Observable;
-import rx.subjects.PublishSubject;
-import rx.subjects.SerializedSubject;
-import rx.subjects.Subject;
 
 /**
  * courtesy: https://gist.github.com/benjchristensen/04eef9ca0851f3a5d7bf
  */
 public class RxBus {
 
-    //private final PublishSubject<Object> _bus = PublishSubject.create();
-
-    // If multiple threads are going to emit events to this
-    // then it must be made thread-safe like this instead
-    private final Subject<Object, Object> _bus = new SerializedSubject<>(PublishSubject.create());
+    private final Relay<Object, Object> _bus = PublishRelay.create().toSerialized();
 
     public void send(Object o) {
-        _bus.onNext(o);
+        _bus.call(o);
     }
 
-    public Observable<Object> toObserverable() {
-        return _bus;
+    public Observable<Object> asObserverable() {
+        return _bus.asObservable();
     }
 
     public boolean hasObservers() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 6fbbfd3e..a039fdc4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -44,7 +44,7 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         _subscriptions//
-              .add(_rxBus.toObserverable()//
+              .add(_rxBus.asObserverable()//
                     .subscribe(event -> {
                         if (event instanceof RxBusDemoFragment.TapEvent) {
                             _showTapText();
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 68570e1e..18cb8268 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -49,7 +49,7 @@ public void onStart() {
         super.onStart();
         _subscriptions = new CompositeSubscription();
 
-        Observable<Object> tapEventEmitter = _rxBus.toObserverable().share();
+        Observable<Object> tapEventEmitter = _rxBus.asObserverable().share();
 
         _subscriptions//
               .add(tapEventEmitter.subscribe(event -> {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index 6eb189d1..de4d8f33 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -48,7 +48,7 @@ public void onStart() {
         super.onStart();
         _subscriptions = new CompositeSubscription();
 
-        ConnectableObservable<Object> tapEventEmitter = _rxBus.toObserverable().publish();
+        ConnectableObservable<Object> tapEventEmitter = _rxBus.asObserverable().publish();
 
         _subscriptions//
               .add(tapEventEmitter.subscribe(event -> {

From eefa39db6a1c3f8ae5849b0214ac4c852aa80e91 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 13:54:23 -0700
Subject: [PATCH 175/260] fix: import + api correction from merge

---
 .../rxjava/rxbus/RxBusDemo_Bottom1Fragment.java       | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 722bb190..439888f4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -44,13 +44,10 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         _subscriptions//
-              .add(_rxBus.toObserverable()//
-                    .subscribe(new Action1<Object>() {
-                        @Override
-                        public void call(Object event) {
-                            if (event instanceof RxBusDemoFragment.TapEvent) {
-                                _showTapText();
-                            }
+              .add(_rxBus.asObservable()//
+                    .subscribe(event -> {
+                        if (event instanceof RxBusDemoFragment.TapEvent) {
+                            _showTapText();
                         }
                     }));
     }

From e54e88186eab66dbb28a75486088ef45d8871493 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 13:58:54 -0700
Subject: [PATCH 176/260] ref: move pagination adapter to independent class

---
 .../rxjava/pagination/PaginationAdapter.java  | 100 ++++++++++++++++++
 .../rxjava/pagination/PaginationFragment.java |  93 +---------------
 2 files changed, 103 insertions(+), 90 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
new file mode 100644
index 00000000..fcfa922b
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
@@ -0,0 +1,100 @@
+package com.morihacky.android.rxjava.pagination;
+
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.rxbus.RxBus;
+
+import java.util.ArrayList;
+import java.util.List;
+
+class PaginationAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+
+    private static final int ITEM_LOG = 0;
+    private static final int ITEM_BTN = 1;
+
+    private final List<String> _items = new ArrayList<>();
+    private final RxBus _bus;
+
+    PaginationAdapter(RxBus bus) {
+        _bus = bus;
+    }
+
+    void addItems(List<String> items) {
+        _items.addAll(items);
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        if (position == _items.size()) {
+            return ITEM_BTN;
+        }
+
+        return ITEM_LOG;
+    }
+
+    @Override
+    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        switch (viewType) {
+            case ITEM_BTN:
+                return ItemBtnViewHolder.create(parent);
+            default:
+                return ItemLogViewHolder.create(parent);
+        }
+    }
+
+    @Override
+    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+        switch (getItemViewType(position)) {
+            case ITEM_LOG:
+                ((ItemLogViewHolder) holder).bindContent(_items.get(position));
+                return;
+            case ITEM_BTN:
+                ((ItemBtnViewHolder) holder).bindContent(_bus);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return _items.size() + 1; // add 1 for paging button
+    }
+
+    private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
+        ItemLogViewHolder(View itemView) {
+            super(itemView);
+        }
+
+        static ItemLogViewHolder create(ViewGroup parent) {
+            return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
+                  .inflate(R.layout.item_log, parent, false));
+        }
+
+        void bindContent(String content) {
+            ((TextView) itemView).setText(content);
+        }
+    }
+
+    static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
+        ItemBtnViewHolder(View itemView) {
+            super(itemView);
+        }
+
+        static ItemBtnViewHolder create(ViewGroup parent) {
+            return new ItemBtnViewHolder(LayoutInflater.from(parent.getContext())
+                  .inflate(R.layout.item_btn, parent, false));
+        }
+
+        void bindContent(RxBus bus) {
+            ((Button) itemView).setText(R.string.btn_demo_pagination_more);
+            itemView.setOnClickListener(v -> bus.send(new ItemBtnViewHolder.PageEvent()));
+        }
+
+        static class PageEvent {
+        }
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index 80ca2222..88e9ceea 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -7,9 +7,7 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
 import android.widget.ProgressBar;
-import android.widget.TextView;
 
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
@@ -34,7 +32,7 @@ public class PaginationFragment extends BaseFragment {
     @Bind(R.id.progress_paging) ProgressBar _progressBar;
 
     private CompositeSubscription _subscriptions;
-    private TestAdapter _adapter;
+    private PaginationAdapter _adapter;
     private RxBus _bus;
     private PublishSubject<Integer> _paginator;
 
@@ -48,7 +46,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
         _pagingList.setLayoutManager(layoutManager);
 
-        _adapter = new TestAdapter(_bus);
+        _adapter = new PaginationAdapter(_bus);
         _pagingList.setAdapter(_adapter);
 
         _paginator = PublishSubject.create();
@@ -77,7 +75,7 @@ public void onStart() {
         // I'm using an Rxbus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
         Subscription s1 = _bus.asObservable().subscribe(event -> {
-            if (event instanceof ItemBtnViewHolder.PageEvent) {
+            if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
 
                 // trigger the paginator for the next event
                 int nextPage = _adapter.getItemCount() - 1;
@@ -127,89 +125,4 @@ public View onCreateView(LayoutInflater inflater,
     }
 
 
-    private static class TestAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
-
-        static final int ITEM_LOG = 0;
-        static final int ITEM_BTN = 1;
-
-        final List<String> _items = new ArrayList<>();
-        final RxBus _bus;
-
-        TestAdapter(RxBus bus) {
-            _bus = bus;
-        }
-
-        void addItems(List<String> items) {
-            _items.addAll(items);
-        }
-
-        @Override
-        public int getItemViewType(int position) {
-            if (position == _items.size()) {
-                return ITEM_BTN;
-            }
-
-            return ITEM_LOG;
-        }
-
-        @Override
-        public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-            switch (viewType) {
-                case ITEM_BTN:
-                    return ItemBtnViewHolder.create(parent);
-                default:
-                    return ItemLogViewHolder.create(parent);
-            }
-        }
-
-        @Override
-        public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
-            switch (getItemViewType(position)) {
-                case ITEM_LOG:
-                    ((ItemLogViewHolder) holder).bindContent(_items.get(position));
-                    return;
-                case ITEM_BTN:
-                    ((ItemBtnViewHolder) holder).bindContent(_bus);
-            }
-        }
-
-        @Override
-        public int getItemCount() {
-            return _items.size() + 1; // add 1 for paging button
-        }
-    }
-
-    private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
-        ItemLogViewHolder(View itemView) {
-            super(itemView);
-        }
-
-        static ItemLogViewHolder create(ViewGroup parent) {
-            return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
-                  .inflate(R.layout.item_log, parent, false));
-        }
-
-        void bindContent(String content) {
-            ((TextView) itemView).setText(content);
-        }
-    }
-
-    private static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
-        ItemBtnViewHolder(View itemView) {
-            super(itemView);
-        }
-
-        static ItemBtnViewHolder create(ViewGroup parent) {
-            return new ItemBtnViewHolder(LayoutInflater.from(parent.getContext())
-                  .inflate(R.layout.item_btn, parent, false));
-        }
-
-        void bindContent(RxBus bus) {
-            ((Button) itemView).setText(R.string.btn_demo_pagination_more);
-            itemView.setOnClickListener(v -> bus.send(new PageEvent()));
-        }
-
-        static class PageEvent {
-        }
-    }
 }

From 658a08e30eca99ff8f95b9ec225b726a103d297c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 14:08:45 -0700
Subject: [PATCH 177/260] feat: wip: create new pagination auto fragment

---
 .../pagination/PaginationAutoFragment.java    | 128 ++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
new file mode 100644
index 00000000..c3483fad
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -0,0 +1,128 @@
+package com.morihacky.android.rxjava.pagination;
+
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ProgressBar;
+
+import com.morihacky.android.rxjava.MainActivity;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.fragments.BaseFragment;
+import com.morihacky.android.rxjava.rxbus.RxBus;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import rx.Observable;
+import rx.Subscription;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.subjects.PublishSubject;
+import rx.subscriptions.CompositeSubscription;
+
+public class PaginationAutoFragment extends BaseFragment {
+
+    @Bind(R.id.list_paging) RecyclerView _pagingList;
+    @Bind(R.id.progress_paging) ProgressBar _progressBar;
+
+    private CompositeSubscription _subscriptions;
+    private PaginationAdapter _adapter;
+    private RxBus _bus;
+    private PublishSubject<Integer> _paginator;
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        _bus = ((MainActivity) getActivity()).getRxBusSingleton();
+
+        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
+        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
+        _pagingList.setLayoutManager(layoutManager);
+
+        _adapter = new PaginationAdapter(_bus);
+        _pagingList.setAdapter(_adapter);
+
+        _paginator = PublishSubject.create();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+        _subscriptions = new CompositeSubscription();
+
+        Subscription s2 =//
+              _paginator//
+                    .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .map(items -> {
+                        int start = _adapter.getItemCount() - 1;
+
+                        _adapter.addItems(items);
+                        _adapter.notifyItemRangeInserted(start, 10);
+
+                        _progressBar.setVisibility(View.INVISIBLE);
+                        return null;
+                    })//
+                    .subscribe();
+
+        // I'm using an Rxbus purely to hear from a nested button click
+        // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
+        Subscription s1 = _bus.asObservable().subscribe(event -> {
+            if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
+
+                // trigger the paginator for the next event
+                int nextPage = _adapter.getItemCount() - 1;
+                _paginator.onNext(nextPage);
+
+            }
+        });
+
+        _subscriptions.add(s1);
+        _subscriptions.add(s2);
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        _subscriptions.clear();
+    }
+
+    /**
+     * Fake Observable that simulates a network call and then sends down a list of items
+     */
+    private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
+        return Observable.just(true)
+              .observeOn(AndroidSchedulers.mainThread())
+              .doOnNext(dummy -> _progressBar.setVisibility(View.VISIBLE))
+              .delay(2, TimeUnit.SECONDS)
+              .map(dummy -> {
+                  List<String> items = new ArrayList<>();
+                  for (int i = 0; i < count; i++) {
+                      items.add("Item " + (start + i));
+                  }
+                  return items;
+              });
+    }
+
+
+    // -----------------------------------------------------------------------------------
+    // WIRING up the views required for this example
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
+    }
+
+
+}

From c2ce9914691ade843945a53f71b62e95afea5323 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 14:40:39 -0700
Subject: [PATCH 178/260] fix: block duplicate calls + back pressure protect

---
 .../pagination/PaginationAutoFragment.java    | 30 +++++++++++--------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index c3483fad..a9c83469 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -35,6 +35,7 @@ public class PaginationAutoFragment extends BaseFragment {
     private PaginationAdapter _adapter;
     private RxBus _bus;
     private PublishSubject<Integer> _paginator;
+    private boolean _requestUnderWay = false;
 
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
@@ -58,8 +59,10 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         Subscription s2 =//
-              _paginator//
-                    .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
+              _paginator
+                    .onBackpressureDrop()
+                    .doOnNext(i -> _requestUnderWay = true)
+                    .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))
                     .observeOn(AndroidSchedulers.mainThread())
                     .map(items -> {
                         int start = _adapter.getItemCount() - 1;
@@ -67,22 +70,25 @@ public void onStart() {
                         _adapter.addItems(items);
                         _adapter.notifyItemRangeInserted(start, 10);
 
+                        _requestUnderWay = false;
                         _progressBar.setVisibility(View.INVISIBLE);
                         return null;
-                    })//
+                    })
                     .subscribe();
 
         // I'm using an Rxbus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
-        Subscription s1 = _bus.asObservable().subscribe(event -> {
-            if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
-
-                // trigger the paginator for the next event
-                int nextPage = _adapter.getItemCount() - 1;
-                _paginator.onNext(nextPage);
-
-            }
-        });
+        Subscription s1 =//
+              _bus.asObservable()
+                    .filter(o -> !_requestUnderWay)
+                    .subscribe(event -> {
+                        if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
+
+                            // trigger the paginator for the next event
+                            int nextPage = _adapter.getItemCount() - 1;
+                            _paginator.onNext(nextPage);
+                        }
+                    });
 
         _subscriptions.add(s1);
         _subscriptions.add(s2);

From 2f5f4417425f278161cda160bf58eeb2ba4e6b8b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 14:45:36 -0700
Subject: [PATCH 179/260] fix: add project settings + handle progress
 explicitly in funcsionts

---
 .idea/codeStyleSettings.xml                   |  2 +-
 .../pagination/PaginationAutoFragment.java    | 62 +++++++++----------
 2 files changed, 29 insertions(+), 35 deletions(-)

diff --git a/.idea/codeStyleSettings.xml b/.idea/codeStyleSettings.xml
index 4abac691..3682ebc2 100644
--- a/.idea/codeStyleSettings.xml
+++ b/.idea/codeStyleSettings.xml
@@ -231,6 +231,6 @@
         </codeStyleSettings>
       </value>
     </option>
-    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="codestyle_android_kg" />
   </component>
 </project>
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index a9c83469..2bd0575d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -8,34 +8,41 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ProgressBar;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
-
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
 import rx.Observable;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.subjects.PublishSubject;
 import rx.subscriptions.CompositeSubscription;
 
-public class PaginationAutoFragment extends BaseFragment {
+public class PaginationAutoFragment
+      extends BaseFragment {
 
     @Bind(R.id.list_paging) RecyclerView _pagingList;
     @Bind(R.id.progress_paging) ProgressBar _progressBar;
 
-    private CompositeSubscription _subscriptions;
     private PaginationAdapter _adapter;
     private RxBus _bus;
     private PublishSubject<Integer> _paginator;
     private boolean _requestUnderWay = false;
+    private CompositeSubscription _subscriptions;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
+    }
 
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
@@ -59,9 +66,11 @@ public void onStart() {
         _subscriptions = new CompositeSubscription();
 
         Subscription s2 =//
-              _paginator
-                    .onBackpressureDrop()
-                    .doOnNext(i -> _requestUnderWay = true)
+              _paginator.onBackpressureDrop()
+                    .doOnNext(i -> {
+                        _requestUnderWay = true;
+                        _progressBar.setVisibility(View.VISIBLE);
+                    })
                     .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))
                     .observeOn(AndroidSchedulers.mainThread())
                     .map(items -> {
@@ -69,18 +78,19 @@ public void onStart() {
 
                         _adapter.addItems(items);
                         _adapter.notifyItemRangeInserted(start, 10);
-
+                        return null;
+                    })
+                    .doOnNext(i -> {
                         _requestUnderWay = false;
                         _progressBar.setVisibility(View.INVISIBLE);
-                        return null;
                     })
                     .subscribe();
 
-        // I'm using an Rxbus purely to hear from a nested button click
+        // I'm using an RxBus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
         Subscription s1 =//
-              _bus.asObservable()
-                    .filter(o -> !_requestUnderWay)
+              _bus.asObservable()//
+                    .filter(o -> !_requestUnderWay)//
                     .subscribe(event -> {
                         if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
 
@@ -104,10 +114,9 @@ public void onStop() {
      * Fake Observable that simulates a network call and then sends down a list of items
      */
     private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
-        return Observable.just(true)
-              .observeOn(AndroidSchedulers.mainThread())
-              .doOnNext(dummy -> _progressBar.setVisibility(View.VISIBLE))
-              .delay(2, TimeUnit.SECONDS)
+        return Observable.just(true)//
+              .observeOn(AndroidSchedulers.mainThread())//
+              .delay(2, TimeUnit.SECONDS)//
               .map(dummy -> {
                   List<String> items = new ArrayList<>();
                   for (int i = 0; i < count; i++) {
@@ -116,19 +125,4 @@ private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
                   return items;
               });
     }
-
-
-    // -----------------------------------------------------------------------------------
-    // WIRING up the views required for this example
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-
 }

From 8be76386ecb2b29f654f240caa3e5197f49974ea Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 14:49:00 -0700
Subject: [PATCH 180/260] fix: create pagination auto adapter

---
 .../pagination/PaginationAutoAdapter.java     | 99 +++++++++++++++++++
 .../pagination/PaginationAutoFragment.java    |  6 +-
 2 files changed, 102 insertions(+), 3 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
new file mode 100644
index 00000000..140774f4
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
@@ -0,0 +1,99 @@
+package com.morihacky.android.rxjava.pagination;
+
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.rxbus.RxBus;
+import java.util.ArrayList;
+import java.util.List;
+
+class PaginationAutoAdapter
+      extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+
+    private static final int ITEM_LOG = 0;
+    private static final int ITEM_BTN = 1;
+
+    private final List<String> _items = new ArrayList<>();
+    private final RxBus _bus;
+
+    PaginationAutoAdapter(RxBus bus) {
+        _bus = bus;
+    }
+
+    void addItems(List<String> items) {
+        _items.addAll(items);
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        if (position == _items.size()) {
+            return ITEM_BTN;
+        }
+
+        return ITEM_LOG;
+    }
+
+    @Override
+    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        switch (viewType) {
+            case ITEM_BTN:
+                return ItemBtnViewHolder.create(parent);
+            default:
+                return ItemLogViewHolder.create(parent);
+        }
+    }
+
+    @Override
+    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+        switch (getItemViewType(position)) {
+            case ITEM_LOG:
+                ((ItemLogViewHolder) holder).bindContent(_items.get(position));
+                return;
+            case ITEM_BTN:
+                ((ItemBtnViewHolder) holder).bindContent(_bus);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return _items.size() + 1; // add 1 for paging button
+    }
+
+    private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
+        ItemLogViewHolder(View itemView) {
+            super(itemView);
+        }
+
+        static ItemLogViewHolder create(ViewGroup parent) {
+            return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
+                  .inflate(R.layout.item_log, parent, false));
+        }
+
+        void bindContent(String content) {
+            ((TextView) itemView).setText(content);
+        }
+    }
+
+    static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
+        ItemBtnViewHolder(View itemView) {
+            super(itemView);
+        }
+
+        static ItemBtnViewHolder create(ViewGroup parent) {
+            return new ItemBtnViewHolder(LayoutInflater.from(parent.getContext())
+                  .inflate(R.layout.item_btn, parent, false));
+        }
+
+        void bindContent(RxBus bus) {
+            ((Button) itemView).setText(R.string.btn_demo_pagination_more);
+            itemView.setOnClickListener(v -> bus.send(new ItemBtnViewHolder.PageEvent()));
+        }
+
+        static class PageEvent {
+        }
+    }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index 2bd0575d..0be9e56e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -29,7 +29,7 @@ public class PaginationAutoFragment
     @Bind(R.id.list_paging) RecyclerView _pagingList;
     @Bind(R.id.progress_paging) ProgressBar _progressBar;
 
-    private PaginationAdapter _adapter;
+    private PaginationAutoAdapter _adapter;
     private RxBus _bus;
     private PublishSubject<Integer> _paginator;
     private boolean _requestUnderWay = false;
@@ -54,7 +54,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
         _pagingList.setLayoutManager(layoutManager);
 
-        _adapter = new PaginationAdapter(_bus);
+        _adapter = new PaginationAutoAdapter(_bus);
         _pagingList.setAdapter(_adapter);
 
         _paginator = PublishSubject.create();
@@ -116,7 +116,7 @@ public void onStop() {
     private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
         return Observable.just(true)//
               .observeOn(AndroidSchedulers.mainThread())//
-              .delay(2, TimeUnit.SECONDS)//
+              .delay(2, TimeUnit.SECONDS)
               .map(dummy -> {
                   List<String> items = new ArrayList<>();
                   for (int i = 0; i < count; i++) {

From b86d4056ab530df482b5dd700af41a82a45c8709 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 14:51:02 -0700
Subject: [PATCH 181/260] fix: remove moar btn

---
 .../pagination/PaginationAutoAdapter.java     | 63 +++++--------------
 1 file changed, 14 insertions(+), 49 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
index 140774f4..df28d792 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
@@ -4,7 +4,6 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
 import android.widget.TextView;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.rxbus.RxBus;
@@ -15,7 +14,6 @@ class PaginationAutoAdapter
       extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
     private static final int ITEM_LOG = 0;
-    private static final int ITEM_BTN = 1;
 
     private final List<String> _items = new ArrayList<>();
     private final RxBus _bus;
@@ -24,76 +22,43 @@ class PaginationAutoAdapter
         _bus = bus;
     }
 
-    void addItems(List<String> items) {
-        _items.addAll(items);
-    }
-
     @Override
-    public int getItemViewType(int position) {
-        if (position == _items.size()) {
-            return ITEM_BTN;
-        }
-
-        return ITEM_LOG;
+    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        return ItemLogViewHolder.create(parent);
     }
 
     @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        switch (viewType) {
-            case ITEM_BTN:
-                return ItemBtnViewHolder.create(parent);
-            default:
-                return ItemLogViewHolder.create(parent);
-        }
+    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+        ((ItemLogViewHolder) holder).bindContent(_items.get(position));
     }
 
     @Override
-    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
-        switch (getItemViewType(position)) {
-            case ITEM_LOG:
-                ((ItemLogViewHolder) holder).bindContent(_items.get(position));
-                return;
-            case ITEM_BTN:
-                ((ItemBtnViewHolder) holder).bindContent(_bus);
-        }
+    public int getItemViewType(int position) {
+        return ITEM_LOG;
     }
 
     @Override
     public int getItemCount() {
-        return _items.size() + 1; // add 1 for paging button
+        return _items.size();
+    }
+
+    void addItems(List<String> items) {
+        _items.addAll(items);
     }
 
-    private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
+    private static class ItemLogViewHolder
+          extends RecyclerView.ViewHolder {
         ItemLogViewHolder(View itemView) {
             super(itemView);
         }
 
         static ItemLogViewHolder create(ViewGroup parent) {
             return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
-                  .inflate(R.layout.item_log, parent, false));
+                                               .inflate(R.layout.item_log, parent, false));
         }
 
         void bindContent(String content) {
             ((TextView) itemView).setText(content);
         }
     }
-
-    static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
-        ItemBtnViewHolder(View itemView) {
-            super(itemView);
-        }
-
-        static ItemBtnViewHolder create(ViewGroup parent) {
-            return new ItemBtnViewHolder(LayoutInflater.from(parent.getContext())
-                  .inflate(R.layout.item_btn, parent, false));
-        }
-
-        void bindContent(RxBus bus) {
-            ((Button) itemView).setText(R.string.btn_demo_pagination_more);
-            itemView.setOnClickListener(v -> bus.send(new ItemBtnViewHolder.PageEvent()));
-        }
-
-        static class PageEvent {
-        }
-    }
 }

From 38288ba1dccd42b0d778f8d240e28e2ba2e5aba5 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 15:20:54 -0700
Subject: [PATCH 182/260] feat: auto paginate the list

---
 .../pagination/PaginationAutoAdapter.java      |  7 +++++++
 .../pagination/PaginationAutoFragment.java     | 18 +++++++++---------
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
index df28d792..ece28f76 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
@@ -30,6 +30,11 @@ public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType
     @Override
     public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
         ((ItemLogViewHolder) holder).bindContent(_items.get(position));
+
+        boolean lastPositionReached = position == _items.size() - 1;
+        if (lastPositionReached) {
+            _bus.send(new PageEvent());
+        }
     }
 
     @Override
@@ -61,4 +66,6 @@ void bindContent(String content) {
             ((TextView) itemView).setText(content);
         }
     }
+
+    static class PageEvent { }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index 0be9e56e..17ee72f2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -71,13 +71,11 @@ public void onStart() {
                         _requestUnderWay = true;
                         _progressBar.setVisibility(View.VISIBLE);
                     })
-                    .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))
+                    .concatMap(this::_itemsFromNetworkCall)
                     .observeOn(AndroidSchedulers.mainThread())
                     .map(items -> {
-                        int start = _adapter.getItemCount() - 1;
-
                         _adapter.addItems(items);
-                        _adapter.notifyItemRangeInserted(start, 10);
+                        _adapter.notifyDataSetChanged();
                         return null;
                     })
                     .doOnNext(i -> {
@@ -92,16 +90,18 @@ public void onStart() {
               _bus.asObservable()//
                     .filter(o -> !_requestUnderWay)//
                     .subscribe(event -> {
-                        if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
+                        if (event instanceof PaginationAutoAdapter.PageEvent) {
 
                             // trigger the paginator for the next event
-                            int nextPage = _adapter.getItemCount() - 1;
+                            int nextPage = _adapter.getItemCount();
                             _paginator.onNext(nextPage);
                         }
                     });
 
         _subscriptions.add(s1);
         _subscriptions.add(s2);
+
+        _paginator.onNext(0);
     }
 
     @Override
@@ -113,14 +113,14 @@ public void onStop() {
     /**
      * Fake Observable that simulates a network call and then sends down a list of items
      */
-    private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
+    private Observable<List<String>> _itemsFromNetworkCall(int pageStart) {
         return Observable.just(true)//
               .observeOn(AndroidSchedulers.mainThread())//
               .delay(2, TimeUnit.SECONDS)
               .map(dummy -> {
                   List<String> items = new ArrayList<>();
-                  for (int i = 0; i < count; i++) {
-                      items.add("Item " + (start + i));
+                  for (int i = 0; i < 10; i++) {
+                      items.add("Item " + (pageStart + i));
                   }
                   return items;
               });

From 225ee9a10e65f2f794db69d22b58009383566064 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 15:22:30 -0700
Subject: [PATCH 183/260] feat: update README

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index f0010cd3..e1016eba 100644
--- a/README.md
+++ b/README.md
@@ -168,6 +168,8 @@ I leverage the simple use of a Subject here. Honestly, if you don't have your it
 
 This example basically sends the page number to a Subject, and the subject handles adding the items. Notice the use of `concatMap` and the return of an `Observable<List>` from `_itemsFromNetworkCall`.
 
+For kicks, I've also included a `PaginationAutoFragment` example, this "auto-paginates" without us requiring to hit a button. It should be simple to follow if you got how the previous example works.
+
 Here are some other fancy implementations (while i enjoyed reading them, i didn't land up using them for my real world app cause personally i don't think it's necessary):
 
 * [Matthias example of an Rx based pager](https://gist.github.com/mttkay/24881a0ce986f6ec4b4d)

From ee1f028091ecd102c31b6ac840a5ee1d7b592042 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sat, 8 Oct 2016 16:06:22 -0700
Subject: [PATCH 184/260] fix: observable leak.

issue #65 explains how to reproduce this and @marukami explains the
reason for this happening beautifully.

given that we want to allow multiple clicks of the button, i think the
right away to address this is just by using `CompositeSubscription`s.
In general, for android this also seems like the way to go.

#67 is also a good potential fix, but i prefer going the CS route.
Seems more "semantic".
---
 ...ConcurrencyWithSchedulersDemoFragment.java | 21 +++++++++----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index 41d2c9d8..dacfaa0b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -11,21 +11,18 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
-
-import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
-
-import java.util.ArrayList;
-import java.util.List;
-
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
+import java.util.ArrayList;
+import java.util.List;
 import rx.Observable;
 import rx.Observer;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
+import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
 public class ConcurrencyWithSchedulersDemoFragment
@@ -36,13 +33,13 @@ public class ConcurrencyWithSchedulersDemoFragment
 
     private LogAdapter _adapter;
     private List<String> _logs;
-    private Subscription _subscription;
+    private CompositeSubscription _subscriptions = new CompositeSubscription();
 
     @Override
     public void onDestroy() {
         super.onDestroy();
         ButterKnife.unbind(this);
-        RxUtils.unsubscribeIfNotNull(_subscription);
+        _subscriptions.clear();
     }
 
     @Override
@@ -66,10 +63,12 @@ public void startLongOperation() {
         _progress.setVisibility(View.VISIBLE);
         _log("Button Clicked");
 
-        _subscription = _getObservable()//
+        Subscription s = _getObservable()//
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(_getObserver());                             // Observer
+              .subscribe(_getObserver()); // Observer
+
+        _subscriptions.add(s);
     }
 
     private Observable<Boolean> _getObservable() {

From dd8e1176ac4fd107afc4b1202dd136bc71d45714 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 11 Oct 2016 22:25:36 -0700
Subject: [PATCH 185/260] fix: back pressure protection

if you go berzerk on the MOAR button would crash preivously
---
 .../rxjava/pagination/PaginationFragment.java    | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index 88e9ceea..5973e024 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -59,17 +59,17 @@ public void onStart() {
 
         Subscription s2 =//
               _paginator//
+                    .onBackpressureDrop()//
                     .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .map(items -> {
-                        int start = _adapter.getItemCount() - 1;
+                    .observeOn(AndroidSchedulers.mainThread()).map(items -> {
+                  int start = _adapter.getItemCount() - 1;
 
-                        _adapter.addItems(items);
-                        _adapter.notifyItemRangeInserted(start, 10);
+                  _adapter.addItems(items);
+                  _adapter.notifyItemRangeInserted(start, 10);
 
-                        _progressBar.setVisibility(View.INVISIBLE);
-                        return null;
-                    })//
+                  _progressBar.setVisibility(View.INVISIBLE);
+                  return null;
+              })//
                     .subscribe();
 
         // I'm using an Rxbus purely to hear from a nested button click

From 466baca835ed45bb1ef0c4499d175a0bf7906337 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 11 Oct 2016 22:25:48 -0700
Subject: [PATCH 186/260] chore: cause AS saying i have to bump version

---
 build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.gradle b/build.gradle
index a06fef3a..e5434889 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.0'
+        classpath 'com.android.tools.build:gradle:2.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

From 4ead12d953172628b902f2ee963da6fc2e8287b2 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 11 Oct 2016 22:25:58 -0700
Subject: [PATCH 187/260] fix: use auto paging example by default

---
 .../android/rxjava/fragments/MainFragment.java        | 11 +++++------
 .../android/rxjava/pagination/PaginationAdapter.java  |  4 ++++
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index cb48e4ef..9d542493 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -7,15 +7,13 @@
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.pagination.PaginationFragment;
+import com.morihacky.android.rxjava.pagination.PaginationAutoFragment;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 import com.morihacky.android.rxjava.volley.VolleyDemoFragment;
 
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-
 public class MainFragment
       extends BaseFragment {
 
@@ -97,7 +95,8 @@ void demoRotationPersist() {
 
     @OnClick(R.id.btn_demo_pagination)
     void demoPaging() {
-        clickedOn(new PaginationFragment());
+        clickedOn(new PaginationAutoFragment());
+        //clickedOn(new PaginationFragment());
     }
 
     @OnClick(R.id.btn_demo_volley)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
index fcfa922b..5de559f9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
@@ -13,6 +13,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * There isn't anything specific to Pagination here.
+ * Just wiring for the example
+ */
 class PaginationAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
     private static final int ITEM_LOG = 0;

From 0ddb61a454ce362bfc19c56587da92459b409d36 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Wed, 12 Oct 2016 09:07:13 -0700
Subject: [PATCH 188/260] chore: update readme with another pagination example

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index e1016eba..b5d1a64d 100644
--- a/README.md
+++ b/README.md
@@ -173,8 +173,10 @@ For kicks, I've also included a `PaginationAutoFragment` example, this "auto-pag
 Here are some other fancy implementations (while i enjoyed reading them, i didn't land up using them for my real world app cause personally i don't think it's necessary):
 
 * [Matthias example of an Rx based pager](https://gist.github.com/mttkay/24881a0ce986f6ec4b4d)
+* [Eugene's very comprehensive Pagination sample](https://github.com/matzuk/PaginationSample)
 * [Recursive Paging example](http://stackoverflow.com/questions/28047272/handle-paging-with-rxjava)
 
+
 ## Work in Progress:
 
 Examples that I would like to have here, but haven't found the time yet to flush out.

From 035836185f60faa62427742a96f692bad8d35e99 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 12 Oct 2016 22:55:08 -0700
Subject: [PATCH 189/260] fix: use concatEager vs concat courtesy Jake's
 suggestion
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

 🙏 [Jedi
Jake](https://twitter.com/JakeWharton/status/786362280535592961).
---
 README.md                                                     | 4 +++-
 .../android/rxjava/fragments/PseudoCacheConcatFragment.java   | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index e1016eba..df8c3f4c 100644
--- a/README.md
+++ b/README.md
@@ -103,10 +103,12 @@ The value of this technique becomes more apparent when you have more number of i
 
 ### Retrieve data first from a cache, then a network call - using [`.concat`](http://reactivex.io/documentation/operators/concat.html)
 
-Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieveing from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
+Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieving from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
 
 For the purposes of illustration i use an in-memory `List` (not an actual disk cache), then shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
 
+Note the use of `concatEager` here over the traditional `concat` operator. Both show the results from the `Observables` in a sequential manner (so disk first and then network). The `concat` operator however would not even begin the subscription on subsequent Observables unless the first one is complete whereas `concatEager` kicks off all Observables at the time of Subscription in parallel, but still preserves order.
+
 **Update:**
 
 After a [conversation I had with @artem_zin](https://twitter.com/kaushikgopal/status/591271805211451392), we arrived at an alternative solution to the same problem. One that used the [`.merge`](http://reactivex.io/documentation/operators/merge.html) operator instead.
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
index b895e0c8..98972ed7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
@@ -57,7 +57,7 @@ public void onDemoPseudoCacheClicked() {
         _resultList.setAdapter(_adapter);
         _initializeCache();
 
-        Observable.concat(_getCachedData(), _getFreshData())
+        Observable.concatEager(_getCachedData(), _getFreshData())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Subscriber<Contributor>() {

From 02e34617a23e4a23a6aa64cbacd9295599bebcaf Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Thu, 13 Oct 2016 06:53:18 -0700
Subject: [PATCH 190/260] --wip--

---
 .../android/rxjava/fragments/MainFragment.java |  1 +
 .../fragments/PseudoCacheMergeFragment.java    | 18 +++++++++++-------
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 9d542493..9730607a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -74,6 +74,7 @@ void formValidation() {
 
     @OnClick(R.id.btn_demo_pseudo_cache)
     void pseudoCacheDemo() {
+        //clickedOn(new PseudoCacheConcatFragment());
         clickedOn(new PseudoCacheMergeFragment());
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index fc21f5b8..79c762b8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -21,6 +21,7 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import java.util.concurrent.TimeUnit;
 import rx.Observable;
 import rx.Subscriber;
 import rx.android.schedulers.AndroidSchedulers;
@@ -59,7 +60,10 @@ public void onDemoPseudoCacheClicked() {
         _resultList.setAdapter(_adapter);
         _initializeCache();
 
-        Observable.merge(_getCachedData(), _getFreshData())
+
+        _getFreshData()//
+              .publish(fd -> Observable.merge(fd, _getCachedData().takeUntil(fd)))
+              //Observable.merge(_getCachedData(), _getFreshData())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Subscriber<Pair<Contributor, Long>>() {
@@ -77,13 +81,13 @@ public void onError(Throwable e) {
                   public void onNext(Pair<Contributor, Long> contributorAgePair) {
                       Contributor contributor = contributorAgePair.first;
 
-                      if (_resultAgeMap.containsKey(contributor) &&
-                          _resultAgeMap.get(contributor) > contributorAgePair.second) {
-                          return;
-                      }
+                      //if (_resultAgeMap.containsKey(contributor) &&
+                      //    _resultAgeMap.get(contributor) > contributorAgePair.second) {
+                      //    return;
+                      //}
 
                       _contributionMap.put(contributor.login, contributor.contributions);
-                      _resultAgeMap.put(contributor, contributorAgePair.second);
+                      //_resultAgeMap.put(contributor, contributorAgePair.second);
 
                       _adapter.clear();
                       _adapter.addAll(getListStringFromMap());
@@ -117,7 +121,7 @@ private Observable<Pair<Contributor, Long>> _getCachedData() {
             list.add(dataWithAgePair);
         }
 
-        return Observable.from(list);
+        return Observable.from(list).delay(5, TimeUnit.SECONDS);
     }
 
     private Observable<Pair<Contributor, Long>> _getFreshData() {

From 614c8b1348984b166c3b837f1640d03f69e9bfed Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 18 Oct 2016 22:42:05 -0700
Subject: [PATCH 191/260] fix: revert pseudo cache merge fragment to old code

---
 .../fragments/PseudoCacheMergeFragment.java   | 27 +++++++------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 79c762b8..6fbaca18 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -8,20 +8,16 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
-
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import java.util.concurrent.TimeUnit;
 import rx.Observable;
 import rx.Subscriber;
 import rx.android.schedulers.AndroidSchedulers;
@@ -60,10 +56,7 @@ public void onDemoPseudoCacheClicked() {
         _resultList.setAdapter(_adapter);
         _initializeCache();
 
-
-        _getFreshData()//
-              .publish(fd -> Observable.merge(fd, _getCachedData().takeUntil(fd)))
-              //Observable.merge(_getCachedData(), _getFreshData())
+        Observable.merge(_getCachedData(), _getFreshData())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(new Subscriber<Pair<Contributor, Long>>() {
@@ -81,13 +74,13 @@ public void onError(Throwable e) {
                   public void onNext(Pair<Contributor, Long> contributorAgePair) {
                       Contributor contributor = contributorAgePair.first;
 
-                      //if (_resultAgeMap.containsKey(contributor) &&
-                      //    _resultAgeMap.get(contributor) > contributorAgePair.second) {
-                      //    return;
-                      //}
+                      if (_resultAgeMap.containsKey(contributor) &&
+                          _resultAgeMap.get(contributor) > contributorAgePair.second) {
+                          return;
+                      }
 
                       _contributionMap.put(contributor.login, contributor.contributions);
-                      //_resultAgeMap.put(contributor, contributorAgePair.second);
+                      _resultAgeMap.put(contributor, contributorAgePair.second);
 
                       _adapter.clear();
                       _adapter.addAll(getListStringFromMap());
@@ -121,7 +114,7 @@ private Observable<Pair<Contributor, Long>> _getCachedData() {
             list.add(dataWithAgePair);
         }
 
-        return Observable.from(list).delay(5, TimeUnit.SECONDS);
+        return Observable.from(list);
     }
 
     private Observable<Pair<Contributor, Long>> _getFreshData() {

From 605dc13e1e60ec45343c342f20d57a9e69edade5 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 18 Oct 2016 22:43:15 -0700
Subject: [PATCH 192/260] feat: update disk + network cache example

inspiration from JW's twitter comment -
https://twitter.com/JakeWharton/status/786363146990649345
---
 README.md                                     |  27 +-
 .../rxjava/fragments/MainFragment.java        |   3 +-
 .../rxjava/fragments/PseudoCacheFragment.java | 301 ++++++++++++++++++
 .../main/res/layout/fragment_pseudo_cache.xml | 112 +++++++
 app/src/main/res/layout/item_log_white.xml    |  16 +
 app/src/main/res/values/colors.xml            |   1 +
 app/src/main/res/values/strings.xml           |   9 +
 7 files changed, 458 insertions(+), 11 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
 create mode 100644 app/src/main/res/layout/fragment_pseudo_cache.xml
 create mode 100644 app/src/main/res/layout/item_log_white.xml

diff --git a/README.md b/README.md
index 63682d06..a77dcf41 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ I also gave a talk at a local meetup about warming up to RxJava here. Here's a l
 
 ### Concurrency using schedulers
 
-A common requirement is to offload lengthy heavy I/O intensive operationsacc to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
+A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
 The long operation is simulated by a blocking Thread.sleep call (since this is done in a background thread, our UI is never interrupted).
 
@@ -101,21 +101,30 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
-### Retrieve data first from a cache, then a network call - using [`.concat`](http://reactivex.io/documentation/operators/concat.html)
+### Retrieve data first from a cache, then a network call
 
-Using concat, you can retrieve information from an observable first (presumably this one is fast like retrieving from a disk cache) and show preliminary data to a user. Subsequently, when the longer running 2nd observable is complete (say a network call), you can update the results on the interface using the latest information.
+We have two source (Observables): a disk (fast) cache and a network (fresh) call. The disk cache is much faster than the network Observable. But in order to demonstrate the working, I've also used a "slower" fake disk cache in order to demonstrate the working of the operators.
 
-For the purposes of illustration i use an in-memory `List` (not an actual disk cache), then shoot out a real network call to the github api so it gives you a feel of how this can really be applied in production apps.
+This is demonstrated using 4 techniques:
 
-Note the use of `concatEager` here over the traditional `concat` operator. Both show the results from the `Observables` in a sequential manner (so disk first and then network). The `concat` operator however would not even begin the subscription on subsequent Observables unless the first one is complete whereas `concatEager` kicks off all Observables at the time of Subscription in parallel, but still preserves order.
+1. [`.concat`](http://reactivex.io/documentation/operators/concat.html)
+2. [`.concatEager`](http://reactivex.io/RxJava/javadoc/rx/Observable.html#concatEager(java.lang.Iterable))
+3. [`.merge`](http://reactivex.io/documentation/operators/merge.html)
+4. [`.publish`](http://reactivex.io/RxJava/javadoc/rx/Observable.html#publish(rx.functions.Func1)) selector + merge + takeUntil
 
-**Update:**
+The 4th technique [courtesy Jedi JW](https://twitter.com/JakeWharton/status/786363146990649345) is probably what you want to use. But in order to understand why it's interested to go through the progression of techniques.
 
-After a [conversation I had with @artem_zin](https://twitter.com/kaushikgopal/status/591271805211451392), we arrived at an alternative solution to the same problem. One that used the [`.merge`](http://reactivex.io/documentation/operators/merge.html) operator instead.
+`concat` is great. It retrieves information from the first Observable (disk cache in our case) and then the subsequent network Observable. Since the disk cache is presumably faster, all appears well and the disk cache is loaded up fast, and once the network call finishes we swap out the "fresh" results.
 
-The `concat` (and the equivalent [`startWith`](http://reactivex.io/documentation/operators/startwith.html)) opeartor is strictly sequential, meaning all of the items emitted by the first Observable are emitted strictly before any of the items from the second Observable are emitted. So assuming the first observable (for some strange reason) takes really long to run through all its items, even if the first few items from the second observable have come down the wire it will forcibly be queued.
+The problem with `concat` is that the subsequent observable doesn't even start until the first Observable completes. That can be a problem. We want all observables to start simultaneously but produce the results in a way we expect. Thankfully RxJava introduced `concatEager` which does exactly that. It starts both observables but buffers the result from the latter one until the former Observable finishes. This is a completely viable option.
 
-The `merge` operator on the other hand interleaves items as they are emitted. The problem here though is if for some strange reason an item is emitted by the cache or slower observable *after* the newer/fresher observable, it will overwrite the newer content. To account for this you have to monitor the "resultAge" somehow. This is demonstrated in the updated solution `PseudoCacheMergeFragment`.
+Sometimes though, you just want to start showing the results immediately. Assuming the first observable (for some strange reason) takes really long to run through all its items, even if the first few items from the second observable have come down the wire it will forcibly be queued. You don't necessarily want to "wait" on any Observable. In these situations, we could use the `merge` operator. It interleaves items as they are emitted. This works great and starts to spit out the results as soon as they're shown.
+
+Similar to the `concat` operator, if your first Observable is always faster than the second Observable you won't run into any problems. However the problem with `merge` is: if for some strange reason an item is emitted by the cache or slower observable *after* the newer/fresher observable, it will overwrite the newer content. Click the "MERGE (SLOWER DISK)" button in the example to see this problem in action. @JakeWharton and @swankjesse contributions go to 0! In the real world this could be bad, as it would mean the fresh data would get overridden by stale disk data.
+
+To solve this problem you can use merge in combination with the super nifty `publish` operator which takes in a "selector". I wrote about this usage in a [blog post](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/) but I have [Jedi JW](https://twitter.com/JakeWharton/status/786363146990649345) to thank for reminding of this technique. We `publish` the network observable and provide it a selector which starts emitting from the disk cache, up until the point that the network observable starts emitting. Once the network observable starts emitting, it ignores all results from the disk observable. This is perfect and handles any problems we might have.
+
+Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this.
 
 ### Simple Timing demos using timer/interval/delay
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 9730607a..02ed2046 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -74,8 +74,7 @@ void formValidation() {
 
     @OnClick(R.id.btn_demo_pseudo_cache)
     void pseudoCacheDemo() {
-        //clickedOn(new PseudoCacheConcatFragment());
-        clickedOn(new PseudoCacheMergeFragment());
+        clickedOn(new PseudoCacheFragment());
     }
 
     @OnClick(R.id.btn_demo_timing)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
new file mode 100644
index 00000000..9049d3f3
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
@@ -0,0 +1,301 @@
+package com.morihacky.android.rxjava.fragments;
+
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import com.morihacky.android.rxjava.R;
+import com.morihacky.android.rxjava.retrofit.Contributor;
+import com.morihacky.android.rxjava.retrofit.GithubApi;
+import com.morihacky.android.rxjava.retrofit.GithubService;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import rx.Observable;
+import rx.Subscriber;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.schedulers.Schedulers;
+import timber.log.Timber;
+
+public class PseudoCacheFragment
+      extends BaseFragment {
+
+    @Bind(R.id.info_pseudoCache_demo) TextView infoText;
+    @Bind(R.id.info_pseudoCache_listSubscription) ListView listSubscriptionInfo;
+    @Bind(R.id.info_pseudoCache_listDtl) ListView listDetail;
+
+    private ArrayAdapter<String> adapterDetail, adapterSubscriptionInfo;
+    private HashMap<String, Long> contributionMap = null;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_pseudo_cache, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        ButterKnife.unbind(this);
+    }
+
+    @OnClick(R.id.btn_pseudoCache_concat)
+    public void onConcatBtnClicked() {
+        infoText.setText(R.string.msg_pseudoCache_demoInfo_concat);
+        wireupDemo();
+
+        Observable.concat(getSlowCachedDiskData(), getFreshNetworkData())
+              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      contributionMap.put(contributor.login, contributor.contributions);
+                      adapterDetail.clear();
+                      adapterDetail.addAll(mapAsList(contributionMap));
+                  }
+              });
+    }
+
+    @OnClick(R.id.btn_pseudoCache_concatEager)
+    public void onConcatEagerBtnClicked() {
+        infoText.setText(R.string.msg_pseudoCache_demoInfo_concatEager);
+        wireupDemo();
+
+        Observable.concatEager(getSlowCachedDiskData(), getFreshNetworkData())
+              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      contributionMap.put(contributor.login, contributor.contributions);
+                      adapterDetail.clear();
+                      adapterDetail.addAll(mapAsList(contributionMap));
+                  }
+              });
+
+    }
+
+    @OnClick(R.id.btn_pseudoCache_merge)
+    public void onMergeBtnClicked() {
+        infoText.setText(R.string.msg_pseudoCache_demoInfo_merge);
+        wireupDemo();
+
+        Observable.merge(getCachedDiskData(), getFreshNetworkData())
+              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      contributionMap.put(contributor.login, contributor.contributions);
+                      adapterDetail.clear();
+                      adapterDetail.addAll(mapAsList(contributionMap));
+                  }
+              });
+    }
+
+    @OnClick(R.id.btn_pseudoCache_mergeSlowDisk)
+    public void onMergeSlowBtnClicked() {
+        infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeSlowDisk);
+        wireupDemo();
+
+        Observable.merge(getSlowCachedDiskData(), getFreshNetworkData())
+              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      contributionMap.put(contributor.login, contributor.contributions);
+                      adapterDetail.clear();
+                      adapterDetail.addAll(mapAsList(contributionMap));
+                  }
+              });
+    }
+
+    @OnClick(R.id.btn_pseudoCache_mergeOptimized)
+    public void onMergeOptimizedBtnClicked() {
+        infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeOptimized);
+        wireupDemo();
+
+        getFreshNetworkData()//
+              .publish(network ->//
+                             Observable.merge(network,//
+                                              getCachedDiskData().takeUntil(network)))
+              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      contributionMap.put(contributor.login, contributor.contributions);
+                      adapterDetail.clear();
+                      adapterDetail.addAll(mapAsList(contributionMap));
+                  }
+              });
+    }
+
+    @OnClick(R.id.btn_pseudoCache_mergeOptimizedSlowDisk)
+    public void onMergeOptimizedWithSlowDiskBtnClicked() {
+        infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeOptimizedSlowDisk);
+        wireupDemo();
+
+        getFreshNetworkData()//
+              .publish(network ->//
+                             Observable.merge(network,//
+                                              getSlowCachedDiskData().takeUntil(network)))
+              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(new Subscriber<Contributor>() {
+                  @Override
+                  public void onCompleted() {
+                      Timber.d("done loading all data");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                      Timber.e(e, "arr something went wrong");
+                  }
+
+                  @Override
+                  public void onNext(Contributor contributor) {
+                      contributionMap.put(contributor.login, contributor.contributions);
+                      adapterDetail.clear();
+                      adapterDetail.addAll(mapAsList(contributionMap));
+                  }
+              });
+    }
+
+    // -----------------------------------------------------------------------------------
+    // WIRING for example
+
+    private void wireupDemo() {
+        contributionMap = new HashMap<>();
+
+        adapterDetail = new ArrayAdapter<>(getActivity(), R.layout.item_log_white, R.id.item_log, new ArrayList<>());
+        listDetail.setAdapter(adapterDetail);
+
+        adapterSubscriptionInfo = new ArrayAdapter<>(getActivity(),
+                                                     R.layout.item_log_white,
+                                                     R.id.item_log,
+                                                     new ArrayList<>());
+        listSubscriptionInfo.setAdapter(adapterSubscriptionInfo);
+    }
+
+    private Observable<Contributor> getSlowCachedDiskData() {
+        return Observable.timer(1, TimeUnit.SECONDS).flatMap(dummy -> getCachedDiskData());
+    }
+
+    private Observable<Contributor> getCachedDiskData() {
+        List<Contributor> list = new ArrayList<>();
+        Map<String, Long> map = dummyDiskData();
+
+        for (String username : map.keySet()) {
+            Contributor c = new Contributor();
+            c.login = username;
+            c.contributions = map.get(username);
+            list.add(c);
+        }
+
+        return Observable.from(list)//
+              .doOnSubscribe(() -> new Handler(Looper.getMainLooper())//
+                    .post(() -> adapterSubscriptionInfo.add("(disk) cache subscribed")))//
+              .doOnCompleted(() -> new Handler(Looper.getMainLooper())//
+                    .post(() -> adapterSubscriptionInfo.add("(disk) cache completed")));
+    }
+
+    private Observable<Contributor> getFreshNetworkData() {
+        String githubToken = getResources().getString(R.string.github_oauth_token);
+        GithubApi githubService = GithubService.createGithubService(githubToken);
+
+        return githubService.contributors("square", "retrofit")
+              .flatMap(Observable::from)
+              .doOnSubscribe(() -> new Handler(Looper.getMainLooper())//
+                    .post(() -> adapterSubscriptionInfo.add("(network) subscribed")))//
+              .doOnCompleted(() -> new Handler(Looper.getMainLooper())//
+                    .post(() -> adapterSubscriptionInfo.add("(network) completed")));
+    }
+
+    private List<String> mapAsList(HashMap<String, Long> map) {
+        List<String> list = new ArrayList<>();
+
+        for (String username : map.keySet()) {
+            String rowLog = String.format("%s [%d]", username, contributionMap.get(username));
+            list.add(rowLog);
+        }
+
+        return list;
+    }
+
+    private Map<String, Long> dummyDiskData() {
+        Map<String, Long> map = new HashMap<>();
+        map.put("JakeWharton", 0L);
+        map.put("pforhan", 0L);
+        map.put("edenman", 0L);
+        map.put("swankjesse", 0L);
+        map.put("bruceLee", 0L);
+        return map;
+    }
+}
diff --git a/app/src/main/res/layout/fragment_pseudo_cache.xml b/app/src/main/res/layout/fragment_pseudo_cache.xml
new file mode 100644
index 00000000..34ab83f5
--- /dev/null
+++ b/app/src/main/res/layout/fragment_pseudo_cache.xml
@@ -0,0 +1,112 @@
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:baselineAligned="false"
+    android:orientation="horizontal">
+
+
+    <LinearLayout
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_gravity="center_vertical"
+        android:layout_weight="1"
+        android:orientation="vertical"
+        >
+
+
+        <TextView
+            android:id="@+id/info_pseudoCache_demo"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="2"
+            android:background="@color/colorPrimary"
+            android:gravity="center"
+            android:padding="@dimen/text_micro"
+            android:text="Info about the demo will show up here"
+            android:textColor="@color/white"
+            />
+
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:background="@color/colorPrimaryDark"
+            android:gravity="center_vertical"
+            android:orientation="vertical"
+            android:padding="@dimen/activity_horizontal_margin"
+            >
+
+            <Button
+                android:id="@+id/btn_pseudoCache_concat"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:text="concat"
+                />
+
+
+            <Button
+                android:id="@+id/btn_pseudoCache_concatEager"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:text="concat (eager)"
+                />
+
+
+            <Button
+                android:id="@+id/btn_pseudoCache_merge"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:text="merge"
+                />
+
+
+            <Button
+                android:id="@+id/btn_pseudoCache_mergeSlowDisk"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:text="merge\n(slower disk)"
+                />
+
+            <Button
+                android:id="@+id/btn_pseudoCache_mergeOptimized"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:text="merge\n(optimized)"
+                />
+
+            <Button
+                android:id="@+id/btn_pseudoCache_mergeOptimizedSlowDisk"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:text="merge\n(optimized) slow disk"
+                />
+
+        </LinearLayout>
+
+
+        <ListView
+            android:id="@+id/info_pseudoCache_listSubscription"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:background="@color/colorPrimary"
+            />
+
+
+    </LinearLayout>
+
+    <ListView
+        android:id="@+id/info_pseudoCache_listDtl"
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"
+        android:background="@color/colorPrimaryDark"
+        />
+</LinearLayout>
diff --git a/app/src/main/res/layout/item_log_white.xml b/app/src/main/res/layout/item_log_white.xml
new file mode 100644
index 00000000..f5d4f463
--- /dev/null
+++ b/app/src/main/res/layout/item_log_white.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<TextView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/item_log"
+
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingEnd="@dimen/activity_horizontal_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingStart="@dimen/activity_horizontal_margin"
+    android:text="Item Log goes here"
+    android:textColor="@color/white"
+    android:textSize="@dimen/text_medium"
+    />
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 432d108f..c70a932a 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -8,4 +8,5 @@
     <color name="blue">#488cef</color>
     <color name="green">#3bc4a2</color>
     <color name="gray">#cfcfcf</color>
+    <color name="white">#fff</color>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index d9ff692e..db9cb310 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -22,6 +22,7 @@
     <string name="btn_demo_volley">Volley request demo</string>
     <string name="btn_demo_pagination">Paging example</string>
     <string name="btn_demo_pagination_more">MOAR</string>
+
     <string name="msg_demo_pagination">This is a demo of how you can do a list pagination with Rx. We page 10 items at a time and there are 55 items altogether</string>
     <string name="msg_demo_volley">This is a Volley request demo</string>
     <string name="msg_demo_concurrency_schedulers">This is a demo of how long running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! \n\n To really see this shine. Hit the button multiple times and see how the button click which is a ui operation is never blocked because the long operation only runs in the background</string>
@@ -37,4 +38,12 @@
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete) \nBTN 5: run task A, pause for sometime, then proceed with Task B</string>
     <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
+
+    <string name="msg_pseudoCache_demoInfo_concat">Concat merges the results sequentially. But notice that the latter subscription starts only AFTER the first one completes. Some unnecessary waiting there.</string>
+    <string name="msg_pseudoCache_demoInfo_concatEager">Concat eager is cooler. Both subscriptions start at the same time (parallely) but the order of emission is respected.</string>
+    <string name="msg_pseudoCache_demoInfo_merge">Merge presents the result as they come in which is great if the disk is *always* faster. If not, you have problems.</string>
+    <string name="msg_pseudoCache_demoInfo_mergeSlowDisk">Here\'s a fake example where the disk is made slower than the network call. You can see the results are whack.</string>
+    <string name="msg_pseudoCache_demoInfo_mergeOptimized">This is an optimized merge and probably want to use. Notice subscriptions happen immediately and network results are respected regardless of when they come in. So if the disk is slower, it is discarded.</string>
+    <string name="msg_pseudoCache_demoInfo_mergeOptimizedSlowDisk">Similar to optimized merge (same code). Notice though that if the disk is slower it\'s discarded in favor of the "fresh" network data which in this case happens to be faster.</string>
+
 </resources>

From 229feadd08b4623345ff418b79c4df667ffd666b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Tue, 18 Oct 2016 22:53:03 -0700
Subject: [PATCH 193/260] chore: fix language in README for caching example

---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index a77dcf41..b2998284 100644
--- a/README.md
+++ b/README.md
@@ -103,7 +103,7 @@ The value of this technique becomes more apparent when you have more number of i
 
 ### Retrieve data first from a cache, then a network call
 
-We have two source (Observables): a disk (fast) cache and a network (fresh) call. The disk cache is much faster than the network Observable. But in order to demonstrate the working, I've also used a "slower" fake disk cache in order to demonstrate the working of the operators.
+We have two source Observables: a disk (fast) cache and a network (fresh) call. Typically the disk Observable is much faster than the network Observable. But in order to demonstrate the working, we've also used a fake "slower" disk cache just to see how the operators behave.
 
 This is demonstrated using 4 techniques:
 
@@ -112,7 +112,7 @@ This is demonstrated using 4 techniques:
 3. [`.merge`](http://reactivex.io/documentation/operators/merge.html)
 4. [`.publish`](http://reactivex.io/RxJava/javadoc/rx/Observable.html#publish(rx.functions.Func1)) selector + merge + takeUntil
 
-The 4th technique [courtesy Jedi JW](https://twitter.com/JakeWharton/status/786363146990649345) is probably what you want to use. But in order to understand why it's interested to go through the progression of techniques.
+The 4th technique is probably what you want to use eventually but it's interesting to go through the progression of techniques, to understand why.
 
 `concat` is great. It retrieves information from the first Observable (disk cache in our case) and then the subsequent network Observable. Since the disk cache is presumably faster, all appears well and the disk cache is loaded up fast, and once the network call finishes we swap out the "fresh" results.
 
@@ -124,7 +124,7 @@ Similar to the `concat` operator, if your first Observable is always faster than
 
 To solve this problem you can use merge in combination with the super nifty `publish` operator which takes in a "selector". I wrote about this usage in a [blog post](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/) but I have [Jedi JW](https://twitter.com/JakeWharton/status/786363146990649345) to thank for reminding of this technique. We `publish` the network observable and provide it a selector which starts emitting from the disk cache, up until the point that the network observable starts emitting. Once the network observable starts emitting, it ignores all results from the disk observable. This is perfect and handles any problems we might have.
 
-Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this.
+Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this old implementation.
 
 ### Simple Timing demos using timer/interval/delay
 

From ac14b1f8ac5bf559cc1d999828664294986d55c3 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 23 Oct 2016 21:23:25 -0700
Subject: [PATCH 194/260] chore: update README for Rotation Persist eg

courtesy: #80
---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index b2998284..cc6bb040 100644
--- a/README.md
+++ b/README.md
@@ -173,6 +173,10 @@ Hit the start button and rotate the screen to your heart's content; you'll see t
 
 *There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
+I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
+
+I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
+
 ### Pagination
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.

From e200ab55004bec36fcff9751e7c8cfb826401699 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 11:51:29 -0800
Subject: [PATCH 195/260] chore: update android gradle plugin

---
 build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.gradle b/build.gradle
index e5434889..85ab3d95 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.1'
+        classpath 'com.android.tools.build:gradle:2.2.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

From f4a5cc2f110120011418b65576cd1a43ad3b77f9 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 11:52:07 -0800
Subject: [PATCH 196/260] being rxjava 2 migration. see #82


From e0b80f34b418bc8f05adea3536b1eeec638f6c07 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:42:01 -0800
Subject: [PATCH 197/260] chore: update README + table of contents for e.g.s

---
 README.md | 143 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 86 insertions(+), 57 deletions(-)

diff --git a/README.md b/README.md
index cc6bb040..a424b64b 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,33 @@ Learning RxJava for Android by example
 
 This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://blog.kaush.co/2014/09/15/learning-rxjava-with-android-by-example/).
 
-I also gave a talk at a local meetup about warming up to RxJava here. Here's a link to the [video and slides](https://newcircle.com/s/post/1744/2015/06/29/learning-rxjava-for-android-by-example).
+I've also been giving talks about Learning Rx using many of the examples listed in this repo.
+
+* [Learning RxJava For Android by Example : Part 1](https://www.youtube.com/watch?v=k3D0cWyNno4) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rxjava-for-android-by-example)\] (SF Android Meetup 2015)
+* [Learning Rx by Example : Part 2](https://vimeo.com/190922794) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rx-by-example-2)\] (Øredev 2016)
+
 
 ## Examples:
 
-### Concurrency using schedulers
+1. [Background work & concurrency (using Schedulers)]()
+2. [Accumulate calls (using buffer)]()
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)]()
+5. [Two-way data binding for TextViews (using PublishSubject)]()
+6. [Simple and Advanced polling (using interval and repeatWhen)]()
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)]()
+8. [Form validation (using combineLatest)]()
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)]()
+10. [Simple timing demos (using timer, interval or delay)]()
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)]()
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)]()
+13. [Networking with Volley]()
+14. [Pagination with Rx (using Subjects)]()
+
+
+## Description
+
+### 1. Background work & concurrency (using Schedulers)
 
 A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
@@ -15,7 +37,7 @@ The long operation is simulated by a blocking Thread.sleep call (since this is d
 
 To really see this example shine. Hit the button multiple times and see how the button click (which is a UI operation) is never blocked because the long operation only runs in the background.
 
-### Accumulate calls (buffer)
+### 2. Accumulate calls (using buffer)
 
 This is a demo of how events can be accumulated using the "buffer" operation.
 
@@ -27,7 +49,7 @@ Note:
 
 If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/).
 
-### Instant/Auto searching (subject + debounce)
+### 3. Instant/Auto searching text listeners (using Subjects & debounce)
 
 This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce, Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
@@ -35,38 +57,19 @@ As you type in the input box, it will not shoot out log messages at every single
 
 This is the debounce/throttleWithTimeout method in RxJava.
 
-### Retrofit and RxJava (zip, flatmap)
+### 4. Networking with Retrofit & RxJava (using zip, flatmap)
 
 [Retrofit from Square](http://square.github.io/retrofit/) is an amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples hitting the GitHub API, taken straight up from the android demigod-developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motivation to use RxJava was from attending this talk at Netflix.
 
-Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
-
-### Volley Demo
-
-[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
-
-
-### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
-
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
-
-
-             (flatmap)
-    f1 ___________________ f3 _______
-             (flatmap)               |    (zip)
-    f2 ___________________ f4 _______| ___________  final output
-            \                        |
-             \____________ f5 _______|
-
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
+(Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
 
-### Double binding with TextViews
+### 5. Two-way data binding for TextViews (using PublishSubject)
 
 Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two-way data binding", so when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
 
 While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 
-### Polling with Schedulers
+### 6. Simple and Advanced polling (using interval and repeatWhen)
 
 This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
 
@@ -81,15 +84,33 @@ Instead of using a RetryWithDelay, we use a RepeatWithDelay here. To understand
 
 An alternative approach to delayed polling without the use of `repeatWhen` would be using chained nested delay observables. See [startExecutingWithExponentialBackoffDelay in the ExponentialBackOffFragment example](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java#L111).
 
-### RxBus - An event bus using RxJava + DebouncedBuffer
+### 7. Simple and Advanced exponential backoff (using delay and retryWhen)
 
-Have a look at the accompanying blog posts for details on this demo:
+[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
 
-1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
-2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
-3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
+The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
+
+#### Retry (if error) with exponential backoff
+
+Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+
+We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
 
-### Form validation - using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
+`RetryWithDelay` code snippet courtesy:
+
+* http://stackoverflow.com/a/25292833/159825
+* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+
+Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+
+#### "Repeat" with exponential backoff
+
+Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
+
+Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
+
+
+### 8. Form validation (using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html))
 
 Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
 
@@ -101,7 +122,8 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
-### Retrieve data first from a cache, then a network call
+
+### 9. Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)
 
 We have two source Observables: a disk (fast) cache and a network (fresh) call. Typically the disk Observable is much faster than the network Observable. But in order to demonstrate the working, we've also used a fake "slower" disk cache just to see how the operators behave.
 
@@ -126,7 +148,7 @@ To solve this problem you can use merge in combination with the super nifty `pub
 
 Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this old implementation.
 
-### Simple Timing demos using timer/interval/delay
+### 10. Simple timing demos (using timer, interval and delay)
 
 This is a super simple and straightforward example which shows you how to use RxJava's `timer`, `interval` and `delay` operators to handle a bunch of cases where you want to run a task at specific intervals. Basically say NO to Android `TimerTask`s.
 
@@ -138,46 +160,50 @@ Cases demonstrated here:
 4. run a task constantly every 3s, but after running it 5 times, terminate automatically
 5. run a task A, pause for sometime, then execute Task B, then terminate
 
-### Exponential backoff
+### 11. RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)  
 
-[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
+There are accompanying blog posts that do a much better job of explaining the details on this demo:
 
-The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
+1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
+2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
+3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
 
-#### Retry (if error) with exponential backoff
+### 12. Persist data on Activity rotations (using Subjects and retained Fragments)
 
-Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
 
-We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
+This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
 
-`RetryWithDelay` code snippet courtesy:
+Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
 
-* http://stackoverflow.com/a/25292833/159825
-* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
 
-#### "Repeat" with exponential backoff
+I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
 
-Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
 
-Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
+### 13. Networking with Volley
 
-### Rotation Persist
+[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
 
-A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
 
-This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
+### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
-Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
 
-*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
+
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
-I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
 
-### Pagination
+### 14. Pagination with Rx (using Subjects)
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
 
@@ -194,7 +220,10 @@ Here are some other fancy implementations (while i enjoyed reading them, i didn'
 
 ## Work in Progress:
 
-Examples that I would like to have here, but haven't found the time yet to flush out.
+_Examples that I would like to have here, but haven't found the time yet to flush out_
+
+(queue is empty) 
+
 
 ## Contributing:
 

From a11d5fdabe8fc37bac0d8d75e9c48c4080c227c7 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:45:34 -0800
Subject: [PATCH 198/260] fix: readme update links

---
 README.md | 59 ++++++++++++++++++++++++++-----------------------------
 1 file changed, 28 insertions(+), 31 deletions(-)

diff --git a/README.md b/README.md
index a424b64b..ad2f8f65 100644
--- a/README.md
+++ b/README.md
@@ -11,21 +11,21 @@ I've also been giving talks about Learning Rx using many of the examples listed
 
 ## Examples:
 
-1. [Background work & concurrency (using Schedulers)]()
-2. [Accumulate calls (using buffer)]()
-3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java)
-4. [Networking with Retrofit & RxJava (using zip, flatmap)]()
-5. [Two-way data binding for TextViews (using PublishSubject)]()
-6. [Simple and Advanced polling (using interval and repeatWhen)]()
-7. [Simple and Advanced exponential backoff (using delay and retryWhen)]()
-8. [Form validation (using combineLatest)]()
-9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)]()
-10. [Simple timing demos (using timer, interval or delay)]()
-11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)]()
-12. [Persist data on Activity rotations (using Subjects and retained Fragments)]()
-13. [Networking with Volley]()
-14. [Pagination with Rx (using Subjects)]()
-
+1. [Background work & concurrency (using Schedulers)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#1-background-work--concurrency-using-schedulers)
+2. [Accumulate calls (using buffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#2-accumulate-calls-using-buffer)
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#3-instantauto-searching-text-listeners-using-subjects--debounce)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#4-networking-with-retrofit--rxjava-using-zip-flatmap)
+5. [Two-way data binding for TextViews (using PublishSubject)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#5-two-way-data-binding-for-textviews-using-publishsubject)
+6. [Simple and Advanced polling (using interval and repeatWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#6-simple-and-advanced-polling-using-interval-and-repeatwhen)
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#7-simple-and-advanced-exponential-backoff-using-delay-and-retrywhen)
+8. [Form validation (using combineLatest)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#8-form-validation-using-combinelatest)
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#9-pseudo-caching--retrieve-data-first-from-a-cache-then-a-network-call-using-concat-concateager-merge-or-publish)
+10. [Simple timing demos (using timer, interval or delay)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#10-simple-timing-demos-using-timer-interval-and-delay)
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#11-rxbus--event-bus-using-rxjava-using-rxrelay-never-terminating-subjects-and-debouncedbuffer)
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
+13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
+14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)]()
 
 ## Description
 
@@ -187,22 +187,6 @@ I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjec
 
 [Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
 
-
-### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
-
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
-
-
-             (flatmap)
-    f1 ___________________ f3 _______
-             (flatmap)               |    (zip)
-    f2 ___________________ f4 _______| ___________  final output
-            \                        |
-             \____________ f5 _______|
-
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
-
-
 ### 14. Pagination with Rx (using Subjects)
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
@@ -217,6 +201,19 @@ Here are some other fancy implementations (while i enjoyed reading them, i didn'
 * [Eugene's very comprehensive Pagination sample](https://github.com/matzuk/PaginationSample)
 * [Recursive Paging example](http://stackoverflow.com/questions/28047272/handle-paging-with-rxjava)
 
+### 15. Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)
+
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
+
+
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
+
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
 ## Work in Progress:
 

From 4e4bf2422a250acc193a26b81cc73a3788673668 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:46:20 -0800
Subject: [PATCH 199/260] fix: link for orchestrating observables

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ad2f8f65..6fa4e271 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ I've also been giving talks about Learning Rx using many of the examples listed
 12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
 13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
 14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
-15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)]()
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
 
 ## Description
 

From 1a574ace2c6d5dc46f67fe558d25ee7f19937ff1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 13:27:44 -0800
Subject: [PATCH 200/260] fix: delete pseudo concat fragment (already covered)

---
 .../fragments/PseudoCacheConcatFragment.java  | 123 ------------------
 1 file changed, 123 deletions(-)
 delete mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
deleted file mode 100644
index 98972ed7..00000000
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheConcatFragment.java
+++ /dev/null
@@ -1,123 +0,0 @@
-package com.morihacky.android.rxjava.fragments;
-
-import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
-import android.widget.ListView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.retrofit.Contributor;
-import com.morihacky.android.rxjava.retrofit.GithubApi;
-import com.morihacky.android.rxjava.retrofit.GithubService;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import rx.Observable;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
-import timber.log.Timber;
-
-public class PseudoCacheConcatFragment
-      extends BaseFragment {
-
-    @Bind(R.id.log_list) ListView _resultList;
-
-    private HashMap<String, Long> _contributionMap = null;
-    private ArrayAdapter<String> _adapter;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        ButterKnife.bind(this, layout);
-        _initializeCache();
-        return layout;
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        ButterKnife.unbind(this);
-    }
-
-    @OnClick(R.id.btn_start_pseudo_cache)
-    public void onDemoPseudoCacheClicked() {
-        _adapter = new ArrayAdapter<>(getActivity(),
-              R.layout.item_log,
-              R.id.item_log,
-              new ArrayList<>());
-
-        _resultList.setAdapter(_adapter);
-        _initializeCache();
-
-        Observable.concatEager(_getCachedData(), _getFreshData())
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
-                  @Override
-                  public void onCompleted() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      _contributionMap.put(contributor.login, contributor.contributions);
-                      _adapter.clear();
-                      _adapter.addAll(getListStringFromMap());
-                  }
-              });
-    }
-
-    private List<String> getListStringFromMap() {
-        List<String> list = new ArrayList<>();
-
-        for (String username : _contributionMap.keySet()) {
-            String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
-            list.add(rowLog);
-        }
-
-        return list;
-    }
-
-    private Observable<Contributor> _getCachedData() {
-
-        List<Contributor> list = new ArrayList<>();
-
-        for (String username : _contributionMap.keySet()) {
-            Contributor c = new Contributor();
-            c.login = username;
-            c.contributions = _contributionMap.get(username);
-            list.add(c);
-        }
-
-        return Observable.from(list);
-    }
-
-    private Observable<Contributor> _getFreshData() {
-        String githubToken = getResources().getString(R.string.github_oauth_token);
-        GithubApi githubService = GithubService.createGithubService(githubToken);
-        return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::from);
-    }
-
-    private void _initializeCache() {
-        _contributionMap = new HashMap<>();
-        _contributionMap.put("JakeWharton", 0l);
-        _contributionMap.put("pforhan", 0l);
-        _contributionMap.put("edenman", 0l);
-        _contributionMap.put("swankjesse", 0l);
-        _contributionMap.put("bruceLee", 0l);
-    }
-}

From 88da53cac6739e7fc478293f8fa1530b1d6b2bb6 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 13:27:56 -0800
Subject: [PATCH 201/260] chore: add required 2.x dependencies

---
 app/build.gradle | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 23136ce0..ca06bdee 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -29,23 +29,34 @@ dependencies {
     compile "com.android.support:appcompat-v7:${supportLibVersion}"
     compile "com.android.support:recyclerview-v7:${supportLibVersion}"
 
-    compile 'io.reactivex:rxandroid:1.2.0'
-    // Because RxAndroid releases are few and far between, it is recommended you also
-    // explicitly depend on RxJava's latest version for bug fixes and new features.
-    compile 'io.reactivex:rxjava:1.1.4'
-    compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
-    compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
     compile 'com.jakewharton:butterknife:7.0.1'
-    compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile "com.squareup.retrofit2:retrofit:${retrofitVersion}"
-    compile "com.squareup.retrofit2:adapter-rxjava:${retrofitVersion}"
     compile "com.squareup.retrofit2:converter-gson:${retrofitVersion}"
     compile "com.squareup.okhttp3:okhttp:${okhttpVersion}"
     compile "com.squareup.okhttp3:okhttp-urlconnection:${okhttpVersion}"
     compile 'com.mcxiaoke.volley:library:1.0.19'
 
+    // ----------- Rx dependencies
+
+    compile 'io.reactivex:rxjava:1.1.4'
+    compile 'io.reactivex.rxjava2:rxjava:2.0.0'
+
+    // Because RxAndroid releases are few and far between, it is recommended you also
+    // explicitly depend on RxJava's latest version for bug fixes and new features.
+    compile 'io.reactivex:rxandroid:1.2.0'
+    compile 'io.reactivex.rxjava2:rxandroid:2.0.0'
+
+    // libs like rxbinding + rxjava-math haven't been ported to RxJava 2.x yet, so this helps
+    compile "com.github.akarnokd:rxjava2-interop:0.6.1"
+
+    compile 'io.reactivex:rxjava-math:1.0.0'
+    compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
+    compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
+    compile "com.squareup.retrofit2:adapter-rxjava:${retrofitVersion}"
+
+
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
     releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
 }

From f45864c36381d8bcff1174b4f501ba9fa38ae80b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:42:01 -0800
Subject: [PATCH 202/260] chore: update README + table of contents for e.g.s

---
 README.md | 143 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 86 insertions(+), 57 deletions(-)

diff --git a/README.md b/README.md
index cc6bb040..a424b64b 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,33 @@ Learning RxJava for Android by example
 
 This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://blog.kaush.co/2014/09/15/learning-rxjava-with-android-by-example/).
 
-I also gave a talk at a local meetup about warming up to RxJava here. Here's a link to the [video and slides](https://newcircle.com/s/post/1744/2015/06/29/learning-rxjava-for-android-by-example).
+I've also been giving talks about Learning Rx using many of the examples listed in this repo.
+
+* [Learning RxJava For Android by Example : Part 1](https://www.youtube.com/watch?v=k3D0cWyNno4) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rxjava-for-android-by-example)\] (SF Android Meetup 2015)
+* [Learning Rx by Example : Part 2](https://vimeo.com/190922794) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rx-by-example-2)\] (Øredev 2016)
+
 
 ## Examples:
 
-### Concurrency using schedulers
+1. [Background work & concurrency (using Schedulers)]()
+2. [Accumulate calls (using buffer)]()
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)]()
+5. [Two-way data binding for TextViews (using PublishSubject)]()
+6. [Simple and Advanced polling (using interval and repeatWhen)]()
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)]()
+8. [Form validation (using combineLatest)]()
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)]()
+10. [Simple timing demos (using timer, interval or delay)]()
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)]()
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)]()
+13. [Networking with Volley]()
+14. [Pagination with Rx (using Subjects)]()
+
+
+## Description
+
+### 1. Background work & concurrency (using Schedulers)
 
 A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
@@ -15,7 +37,7 @@ The long operation is simulated by a blocking Thread.sleep call (since this is d
 
 To really see this example shine. Hit the button multiple times and see how the button click (which is a UI operation) is never blocked because the long operation only runs in the background.
 
-### Accumulate calls (buffer)
+### 2. Accumulate calls (using buffer)
 
 This is a demo of how events can be accumulated using the "buffer" operation.
 
@@ -27,7 +49,7 @@ Note:
 
 If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/).
 
-### Instant/Auto searching (subject + debounce)
+### 3. Instant/Auto searching text listeners (using Subjects & debounce)
 
 This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce, Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
@@ -35,38 +57,19 @@ As you type in the input box, it will not shoot out log messages at every single
 
 This is the debounce/throttleWithTimeout method in RxJava.
 
-### Retrofit and RxJava (zip, flatmap)
+### 4. Networking with Retrofit & RxJava (using zip, flatmap)
 
 [Retrofit from Square](http://square.github.io/retrofit/) is an amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples hitting the GitHub API, taken straight up from the android demigod-developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motivation to use RxJava was from attending this talk at Netflix.
 
-Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
-
-### Volley Demo
-
-[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
-
-
-### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
-
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
-
-
-             (flatmap)
-    f1 ___________________ f3 _______
-             (flatmap)               |    (zip)
-    f2 ___________________ f4 _______| ___________  final output
-            \                        |
-             \____________ f5 _______|
-
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
+(Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
 
-### Double binding with TextViews
+### 5. Two-way data binding for TextViews (using PublishSubject)
 
 Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two-way data binding", so when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
 
 While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 
-### Polling with Schedulers
+### 6. Simple and Advanced polling (using interval and repeatWhen)
 
 This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
 
@@ -81,15 +84,33 @@ Instead of using a RetryWithDelay, we use a RepeatWithDelay here. To understand
 
 An alternative approach to delayed polling without the use of `repeatWhen` would be using chained nested delay observables. See [startExecutingWithExponentialBackoffDelay in the ExponentialBackOffFragment example](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java#L111).
 
-### RxBus - An event bus using RxJava + DebouncedBuffer
+### 7. Simple and Advanced exponential backoff (using delay and retryWhen)
 
-Have a look at the accompanying blog posts for details on this demo:
+[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
 
-1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
-2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
-3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
+The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
+
+#### Retry (if error) with exponential backoff
+
+Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+
+We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
 
-### Form validation - using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
+`RetryWithDelay` code snippet courtesy:
+
+* http://stackoverflow.com/a/25292833/159825
+* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+
+Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+
+#### "Repeat" with exponential backoff
+
+Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
+
+Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
+
+
+### 8. Form validation (using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html))
 
 Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
 
@@ -101,7 +122,8 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
-### Retrieve data first from a cache, then a network call
+
+### 9. Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)
 
 We have two source Observables: a disk (fast) cache and a network (fresh) call. Typically the disk Observable is much faster than the network Observable. But in order to demonstrate the working, we've also used a fake "slower" disk cache just to see how the operators behave.
 
@@ -126,7 +148,7 @@ To solve this problem you can use merge in combination with the super nifty `pub
 
 Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this old implementation.
 
-### Simple Timing demos using timer/interval/delay
+### 10. Simple timing demos (using timer, interval and delay)
 
 This is a super simple and straightforward example which shows you how to use RxJava's `timer`, `interval` and `delay` operators to handle a bunch of cases where you want to run a task at specific intervals. Basically say NO to Android `TimerTask`s.
 
@@ -138,46 +160,50 @@ Cases demonstrated here:
 4. run a task constantly every 3s, but after running it 5 times, terminate automatically
 5. run a task A, pause for sometime, then execute Task B, then terminate
 
-### Exponential backoff
+### 11. RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)  
 
-[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
+There are accompanying blog posts that do a much better job of explaining the details on this demo:
 
-The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
+1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
+2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
+3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
 
-#### Retry (if error) with exponential backoff
+### 12. Persist data on Activity rotations (using Subjects and retained Fragments)
 
-Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
 
-We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
+This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
 
-`RetryWithDelay` code snippet courtesy:
+Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
 
-* http://stackoverflow.com/a/25292833/159825
-* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
 
-#### "Repeat" with exponential backoff
+I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
 
-Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
 
-Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
+### 13. Networking with Volley
 
-### Rotation Persist
+[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
 
-A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
 
-This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
+### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
-Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
 
-*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
+
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
-I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
 
-### Pagination
+### 14. Pagination with Rx (using Subjects)
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
 
@@ -194,7 +220,10 @@ Here are some other fancy implementations (while i enjoyed reading them, i didn'
 
 ## Work in Progress:
 
-Examples that I would like to have here, but haven't found the time yet to flush out.
+_Examples that I would like to have here, but haven't found the time yet to flush out_
+
+(queue is empty) 
+
 
 ## Contributing:
 

From a7add45e4c66beba0ab9c20c37f30e9f5c0a25a6 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:45:34 -0800
Subject: [PATCH 203/260] fix: readme update links

---
 README.md | 59 ++++++++++++++++++++++++++-----------------------------
 1 file changed, 28 insertions(+), 31 deletions(-)

diff --git a/README.md b/README.md
index a424b64b..ad2f8f65 100644
--- a/README.md
+++ b/README.md
@@ -11,21 +11,21 @@ I've also been giving talks about Learning Rx using many of the examples listed
 
 ## Examples:
 
-1. [Background work & concurrency (using Schedulers)]()
-2. [Accumulate calls (using buffer)]()
-3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java)
-4. [Networking with Retrofit & RxJava (using zip, flatmap)]()
-5. [Two-way data binding for TextViews (using PublishSubject)]()
-6. [Simple and Advanced polling (using interval and repeatWhen)]()
-7. [Simple and Advanced exponential backoff (using delay and retryWhen)]()
-8. [Form validation (using combineLatest)]()
-9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)]()
-10. [Simple timing demos (using timer, interval or delay)]()
-11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)]()
-12. [Persist data on Activity rotations (using Subjects and retained Fragments)]()
-13. [Networking with Volley]()
-14. [Pagination with Rx (using Subjects)]()
-
+1. [Background work & concurrency (using Schedulers)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#1-background-work--concurrency-using-schedulers)
+2. [Accumulate calls (using buffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#2-accumulate-calls-using-buffer)
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#3-instantauto-searching-text-listeners-using-subjects--debounce)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#4-networking-with-retrofit--rxjava-using-zip-flatmap)
+5. [Two-way data binding for TextViews (using PublishSubject)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#5-two-way-data-binding-for-textviews-using-publishsubject)
+6. [Simple and Advanced polling (using interval and repeatWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#6-simple-and-advanced-polling-using-interval-and-repeatwhen)
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#7-simple-and-advanced-exponential-backoff-using-delay-and-retrywhen)
+8. [Form validation (using combineLatest)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#8-form-validation-using-combinelatest)
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#9-pseudo-caching--retrieve-data-first-from-a-cache-then-a-network-call-using-concat-concateager-merge-or-publish)
+10. [Simple timing demos (using timer, interval or delay)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#10-simple-timing-demos-using-timer-interval-and-delay)
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#11-rxbus--event-bus-using-rxjava-using-rxrelay-never-terminating-subjects-and-debouncedbuffer)
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
+13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
+14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)]()
 
 ## Description
 
@@ -187,22 +187,6 @@ I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjec
 
 [Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
 
-
-### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
-
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
-
-
-             (flatmap)
-    f1 ___________________ f3 _______
-             (flatmap)               |    (zip)
-    f2 ___________________ f4 _______| ___________  final output
-            \                        |
-             \____________ f5 _______|
-
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
-
-
 ### 14. Pagination with Rx (using Subjects)
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
@@ -217,6 +201,19 @@ Here are some other fancy implementations (while i enjoyed reading them, i didn'
 * [Eugene's very comprehensive Pagination sample](https://github.com/matzuk/PaginationSample)
 * [Recursive Paging example](http://stackoverflow.com/questions/28047272/handle-paging-with-rxjava)
 
+### 15. Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)
+
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
+
+
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
+
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
 ## Work in Progress:
 

From cdea8e55dec84e91ff2791507f78fd468f35432a Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:46:20 -0800
Subject: [PATCH 204/260] fix: link for orchestrating observables

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ad2f8f65..6fa4e271 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ I've also been giving talks about Learning Rx using many of the examples listed
 12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
 13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
 14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
-15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)]()
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
 
 ## Description
 

From 5351e76e410311430f123c2baf2f1ce4ac072742 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 21:28:02 +0100
Subject: [PATCH 205/260] Updated retrofit setup to return RxJava2 observables.

---
 .../com/morihacky/android/rxjava/retrofit/GithubApi.java    | 2 +-
 .../morihacky/android/rxjava/retrofit/GithubService.java    | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
index d65cd92a..d42c2ef9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -2,9 +2,9 @@
 
 import java.util.List;
 
+import io.reactivex.Observable;
 import retrofit2.http.GET;
 import retrofit2.http.Path;
-import rx.Observable;
 
 public interface GithubApi {
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
index 0a8d33d6..d7f24a88 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
@@ -2,11 +2,11 @@
 
 import android.text.TextUtils;
 
+import com.jakewharton.retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
+
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
-import okhttp3.Response;
 import retrofit2.Retrofit;
-import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
 import retrofit2.converter.gson.GsonConverterFactory;
 
 import static java.lang.String.format;
@@ -17,7 +17,7 @@ private GithubService() {
     }
 
     public static GithubApi createGithubService(final String githubToken) {
-        Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+        Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJava2CallAdapterFactory.create())
               .addConverterFactory(GsonConverterFactory.create())
               .baseUrl("https://api.github.com");
 

From 3cff7c43ca132cdf45f5559c75f1bcbfb5b11618 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:43:02 +0100
Subject: [PATCH 206/260] Adjusted retrofit related examples

---
 .../rxjava/fragments/PseudoCacheFragment.java | 59 +++++++++++--------
 .../fragments/PseudoCacheMergeFragment.java   | 25 ++++----
 .../RetrofitAsyncTaskDeathFragment.java       | 10 ++--
 .../rxjava/fragments/RetrofitFragment.java    | 32 +++++-----
 4 files changed, 68 insertions(+), 58 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
index 9049d3f3..e4d3de1a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
@@ -10,22 +10,25 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.TextView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
 public class PseudoCacheFragment
@@ -61,9 +64,9 @@ public void onConcatBtnClicked() {
         Observable.concat(getSlowCachedDiskData(), getFreshNetworkData())
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -86,12 +89,16 @@ public void onConcatEagerBtnClicked() {
         infoText.setText(R.string.msg_pseudoCache_demoInfo_concatEager);
         wireupDemo();
 
-        Observable.concatEager(getSlowCachedDiskData(), getFreshNetworkData())
+        List<Observable<Contributor>> observables = new ArrayList<>(2);
+        observables.add(getSlowCachedDiskData());
+        observables.add(getFreshNetworkData());
+
+        Observable.concatEager(observables)
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -118,9 +125,9 @@ public void onMergeBtnClicked() {
         Observable.merge(getCachedDiskData(), getFreshNetworkData())
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -146,9 +153,9 @@ public void onMergeSlowBtnClicked() {
         Observable.merge(getSlowCachedDiskData(), getFreshNetworkData())
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -177,9 +184,9 @@ public void onMergeOptimizedBtnClicked() {
                                               getCachedDiskData().takeUntil(network)))
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -208,9 +215,9 @@ public void onMergeOptimizedWithSlowDiskBtnClicked() {
                                               getSlowCachedDiskData().takeUntil(network)))
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -259,10 +266,10 @@ private Observable<Contributor> getCachedDiskData() {
             list.add(c);
         }
 
-        return Observable.from(list)//
-              .doOnSubscribe(() -> new Handler(Looper.getMainLooper())//
+        return Observable.fromIterable(list)//
+              .doOnSubscribe((data) -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(disk) cache subscribed")))//
-              .doOnCompleted(() -> new Handler(Looper.getMainLooper())//
+              .doOnComplete(() -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(disk) cache completed")));
     }
 
@@ -271,10 +278,10 @@ private Observable<Contributor> getFreshNetworkData() {
         GithubApi githubService = GithubService.createGithubService(githubToken);
 
         return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::from)
-              .doOnSubscribe(() -> new Handler(Looper.getMainLooper())//
+              .flatMap(Observable::fromIterable)
+              .doOnSubscribe((data) -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(network) subscribed")))//
-              .doOnCompleted(() -> new Handler(Looper.getMainLooper())//
+              .doOnComplete(() -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(network) completed")));
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 6fbaca18..ec2d49e5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -8,20 +8,23 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-import rx.Observable;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
 public class PseudoCacheMergeFragment
@@ -59,9 +62,9 @@ public void onDemoPseudoCacheClicked() {
         Observable.merge(_getCachedData(), _getFreshData())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Pair<Contributor, Long>>() {
+              .subscribe(new DisposableObserver<Pair<Contributor,Long>>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -114,7 +117,7 @@ private Observable<Pair<Contributor, Long>> _getCachedData() {
             list.add(dataWithAgePair);
         }
 
-        return Observable.from(list);
+        return Observable.fromIterable(list);
     }
 
     private Observable<Pair<Contributor, Long>> _getFreshData() {
@@ -122,7 +125,7 @@ private Observable<Pair<Contributor, Long>> _getFreshData() {
         GithubApi githubService = GithubService.createGithubService(githubToken);
 
         return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::from)
+              .flatMap(Observable::fromIterable)
               .map(contributor -> new Pair<>(contributor, System.currentTimeMillis()));
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 5b42e099..180462c9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -21,9 +21,9 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import rx.Observer;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 
 import static java.lang.String.format;
 
@@ -89,9 +89,9 @@ protected void onPostExecute(User user) {
         _githubService.user(_username.getText().toString())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<User>() {
+              .subscribe(new DisposableObserver<User>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                   }
 
                   @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 4a0a31bb..96875d60 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -23,12 +23,11 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
-import rx.subscriptions.CompositeSubscription;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
 import static android.text.TextUtils.isEmpty;
@@ -43,7 +42,7 @@ public class RetrofitFragment
 
     private ArrayAdapter<String> _adapter;
     private GithubApi _githubService;
-    private CompositeSubscription _subscriptions;
+    private CompositeDisposable _disposables;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -51,7 +50,7 @@ public void onCreate(Bundle savedInstanceState) {
         String githubToken = getResources().getString(R.string.github_oauth_token);
         _githubService = GithubService.createGithubService(githubToken);
 
-        _subscriptions = new CompositeSubscription();
+        _disposables = new CompositeDisposable();
     }
 
     @Override
@@ -78,20 +77,21 @@ public void onDestroyView() {
     @Override
     public void onDestroy() {
         super.onDestroy();
-        _subscriptions.unsubscribe();
+        _disposables.dispose();
     }
 
     @OnClick(R.id.btn_demo_retrofit_contributors)
     public void onListContributorsClicked() {
         _adapter.clear();
 
-        _subscriptions.add(//
+        _disposables.add(//
               _githubService.contributors(_username.getText().toString(), _repo.getText().toString())
                     .subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe(new Observer<List<Contributor>>() {
+                    .subscribeWith(new DisposableObserver<List<Contributor>>() {
+
                         @Override
-                        public void onCompleted() {
+                        public void onComplete() {
                             Timber.d("Retrofit call 1 completed");
                         }
 
@@ -121,8 +121,8 @@ public void onNext(List<Contributor> contributors) {
     public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
-        _subscriptions.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-              .flatMap(Observable::from)
+        _disposables.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
+              .flatMap(Observable::fromIterable)
               .flatMap(contributor -> {
                   Observable<User> _userObservable = _githubService.user(contributor.login)
                         .filter(user -> !isEmpty(user.name) && !isEmpty(user.email));
@@ -133,9 +133,9 @@ public void onListContributorsWithFullUserInfoClicked() {
               })
               .subscribeOn(Schedulers.newThread())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Pair>() {
+              .subscribeWith(new DisposableObserver<Pair<User,Contributor>>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("Retrofit call 2 completed ");
                   }
 

From abcb4179e42b6d8a7b5b9f873ef12d8566f16159 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:43:30 +0100
Subject: [PATCH 207/260] Added packagingOptions so RxJava 1 and RxJava 2 can
 work on the same project

---
 app/build.gradle | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/build.gradle b/app/build.gradle
index ca06bdee..a23afb16 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -82,4 +82,8 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
-}
\ No newline at end of file
+
+    packagingOptions {
+        pickFirst  'META-INF/rxjava.properties'
+    }
+}

From 6b05d3c3661bff9c08a9a1252e7ebd11651399f7 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:46:09 +0100
Subject: [PATCH 208/260] Updated RxJava to 2.0.1

---
 app/build.gradle | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index a23afb16..c159a91a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -41,12 +41,12 @@ dependencies {
     // ----------- Rx dependencies
 
     compile 'io.reactivex:rxjava:1.1.4'
-    compile 'io.reactivex.rxjava2:rxjava:2.0.0'
+    compile 'io.reactivex.rxjava2:rxjava:2.0.1'
 
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
     compile 'io.reactivex:rxandroid:1.2.0'
-    compile 'io.reactivex.rxjava2:rxandroid:2.0.0'
+    compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
     // libs like rxbinding + rxjava-math haven't been ported to RxJava 2.x yet, so this helps
     compile "com.github.akarnokd:rxjava2-interop:0.6.1"

From e3a0abbe190556d5303824d84f981968e1125b6d Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:51:45 +0100
Subject: [PATCH 209/260] Replaced RxJava1 retrofit adapter with the RxJava2
 version

---
 app/build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/build.gradle b/app/build.gradle
index c159a91a..9858de8a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -54,7 +54,7 @@ dependencies {
     compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
-    compile "com.squareup.retrofit2:adapter-rxjava:${retrofitVersion}"
+    compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
 
 
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'

From 0f6dd0c92fbcaa070a136cbc9f5a46d3b5db7ebb Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 23:18:32 +0100
Subject: [PATCH 210/260] Updated buffer demo to RxJava2

---
 .../rxjava/fragments/BufferDemoFragment.java  | 21 ++++++++++---------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index d52e3571..445aa735 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -20,9 +20,10 @@
 
 import butterknife.Bind;
 import butterknife.ButterKnife;
-import rx.Observer;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
+import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.observers.DisposableObserver;
 import timber.log.Timber;
 
 /**
@@ -48,18 +49,18 @@ public class BufferDemoFragment
     private LogAdapter _adapter;
     private List<String> _logs;
 
-    private Subscription _subscription;
+    private Disposable _disposable;
 
     @Override
     public void onResume() {
         super.onResume();
-        _subscription = _getBufferedSubscription();
+        _disposable = _getBufferedDisposable();
     }
 
     @Override
     public void onPause() {
         super.onPause();
-        _subscription.unsubscribe();
+        _disposable.dispose();
     }
 
     @Override
@@ -85,8 +86,8 @@ public View onCreateView(LayoutInflater inflater,
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
-    private Subscription _getBufferedSubscription() {
-        return RxView.clickEvents(_tapBtn)
+    private Disposable _getBufferedDisposable() {
+        return  RxJavaInterop.toV2Observable(RxView.clickEvents(_tapBtn))
               .map(onClickEvent -> {
                   Timber.d("--------- GOT A TAP");
                   _log("GOT A TAP");
@@ -94,10 +95,10 @@ private Subscription _getBufferedSubscription() {
               })
               .buffer(2, TimeUnit.SECONDS)
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<List<Integer>>() {
+              .subscribeWith(new DisposableObserver<List<Integer>>() {
 
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       // fyi: you'll never reach here
                       Timber.d("----- onCompleted");
                   }

From b855d0f8c59f031ccea623d9523658c869838e65 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 23:23:59 +0100
Subject: [PATCH 211/260] Updated debounce demo to RxJava2

---
 .../DebounceSearchEmitterFragment.java        | 21 ++++++++++---------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index aa105020..9d2a3ba6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -23,9 +23,10 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import rx.Observer;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
+import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.observers.DisposableObserver;
 import timber.log.Timber;
 
 import static co.kaush.core.util.CoreNullnessUtils.isNotNullOrEmpty;
@@ -40,12 +41,12 @@ public class DebounceSearchEmitterFragment
     private LogAdapter _adapter;
     private List<String> _logs;
 
-    private Subscription _subscription;
+    private Disposable _disposable;
 
     @Override
     public void onDestroy() {
         super.onDestroy();
-        _subscription.unsubscribe();
+        _disposable.dispose();
         ButterKnife.unbind(this);
     }
 
@@ -70,20 +71,20 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         _setupLogger();
 
-        _subscription = RxTextView.textChangeEvents(_inputSearchText)
+        _disposable = RxJavaInterop.toV2Observable(RxTextView.textChangeEvents(_inputSearchText))
               .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
               .filter(changes -> isNotNullOrEmpty(_inputSearchText.getText().toString()))
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(_getSearchObserver());
+              .subscribeWith(_getSearchObserver());
     }
 
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
-    private Observer<TextViewTextChangeEvent> _getSearchObserver() {
-        return new Observer<TextViewTextChangeEvent>() {
+    private DisposableObserver<TextViewTextChangeEvent> _getSearchObserver() {
+        return new DisposableObserver<TextViewTextChangeEvent>() {
             @Override
-            public void onCompleted() {
+            public void onComplete() {
                 Timber.d("--------- onComplete");
             }
 

From 9b2a17abc890ae5733c53f8ee08897981e2f472e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 14:46:13 -0800
Subject: [PATCH 212/260] feat: port example Simple timing demos (using timer,
 interval or delay)

---
 app/build.gradle                              |   4 +
 .../rxjava/fragments/TimingDemoFragment.java  | 195 +++++++++---------
 2 files changed, 98 insertions(+), 101 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index ca06bdee..87f405ff 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -82,4 +82,8 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+
+    packagingOptions {
+        pickFirst  'META-INF/rxjava.properties'
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 649c5f77..8e8458b7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -7,26 +7,23 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
+import io.reactivex.Flowable;
+import io.reactivex.subscribers.DefaultSubscriber;
+import io.reactivex.subscribers.DisposableSubscriber;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import java.util.Locale;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscription;
-import rx.functions.Action1;
 import timber.log.Timber;
 
+
 import static android.os.Looper.getMainLooper;
 import static android.os.Looper.myLooper;
 
@@ -38,14 +35,8 @@ public class TimingDemoFragment
     private LogAdapter _adapter;
     private List<String> _logs;
 
-    private Subscription _subscription1 = null;
-    private Subscription _subscription2 = null;
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
+    private DisposableSubscriber<Long> _subscriber1;
+    private DisposableSubscriber<Long> _subscriber2;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -56,13 +47,17 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @Override
     public void onDestroyView() {
         super.onDestroyView();
         ButterKnife.unbind(this);
 
-        RxUtils.unsubscribeIfNotNull(_subscription1);
-        RxUtils.unsubscribeIfNotNull(_subscription2);
     }
 // -----------------------------------------------------------------------------------
 
@@ -70,96 +65,101 @@ public void onDestroyView() {
     public void btn1_RunSingleTaskAfter2s() {
         _log(String.format("A1 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        Observable.timer(2, TimeUnit.SECONDS)//
-              //.just(1).delay(2, TimeUnit.SECONDS)//
-              .subscribe(new Observer<Long>() {
-                  @Override
-                  public void onCompleted() {
-                      _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "something went wrong in TimingDemoFragment example");
-                  }
-
-                  @Override
-                  public void onNext(Long number) {
-                      _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
-                  }
-              });
+        Flowable.timer(2, TimeUnit.SECONDS)//
+                .subscribe(new DefaultSubscriber<Long>() {
+                    @Override
+                    public void onNext(Long number) {
+                        _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
+                    }
+
+                    @Override
+                    public void onError(Throwable e) {
+                        Timber.e(e, "something went wrong in TimingDemoFragment example");
+                    }
+
+                    @Override
+                    public void onComplete() {
+                        _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+                    }
+                });
     }
 
     @OnClick(R.id.btn_demo_timing_2)
     public void btn2_RunTask_IntervalOf1s() {
-        if (_subscription1 != null && !_subscription1.isUnsubscribed()) {
-            _subscription1.unsubscribe();
+        if (_subscriber1 != null && !_subscriber1.isDisposed()) {
+            _subscriber1.dispose();
             _log(String.format("B2 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
             return;
         }
 
         _log(String.format("B2 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        _subscription1 = Observable//
-              .interval(1, TimeUnit.SECONDS)//
-              .subscribe(new Observer<Long>() {
-                  @Override
-                  public void onCompleted() {
-                      _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "something went wrong in TimingDemoFragment example");
-                  }
-
-                  @Override
-                  public void onNext(Long number) {
-                      _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
-                  }
-              });
+        _subscriber1 = new DisposableSubscriber<Long>() {
+            @Override
+            public void onComplete() {
+                _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+            }
+
+            @Override
+            public void onNext(Long number) {
+                _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
+            }
+        };
+
+        Flowable
+              .interval(1, TimeUnit.SECONDS)
+              .subscribe(_subscriber1);
     }
 
     @OnClick(R.id.btn_demo_timing_3)
     public void btn3_RunTask_IntervalOf1s_StartImmediately() {
-        if (_subscription2 != null && !_subscription2.isUnsubscribed()) {
-            _subscription2.unsubscribe();
+        if (_subscriber2 != null && !_subscriber2.isDisposed()) {
+            _subscriber2.dispose();
             _log(String.format("C3 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
             return;
         }
 
         _log(String.format("C3 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        _subscription2 = Observable//
-              .interval(0, 1, TimeUnit.SECONDS)//
-              .subscribe(new Observer<Long>() {
-                  @Override
-                  public void onCompleted() {
-                      _log(String.format("C3 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
-                  }
+        _subscriber2 = new DisposableSubscriber<Long>() {
+            @Override
+            public void onNext(Long number) {
+                _log(String.format("C3 [%s]     NEXT", _getCurrentTimestamp()));
+            }
 
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "something went wrong in TimingDemoFragment example");
-                  }
+            @Override
+            public void onComplete() {
+                _log(String.format("C3 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+            }
 
-                  @Override
-                  public void onNext(Long number) {
-                      _log(String.format("C3 [%s]     NEXT", _getCurrentTimestamp()));
-                  }
-              });
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+            }
+
+        };
+
+        Flowable
+              .interval(0, 1, TimeUnit.SECONDS)
+              .subscribe(_subscriber2);
     }
 
     @OnClick(R.id.btn_demo_timing_4)
     public void btn4_RunTask5Times_IntervalOf3s() {
         _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        Observable//
-              .interval(3, TimeUnit.SECONDS).take(5)//
-              .subscribe(new Observer<Long>() {
+        Flowable
+              .interval(3, TimeUnit.SECONDS)
+              .take(5)
+              .subscribe(new DefaultSubscriber<Long>() {
                   @Override
-                  public void onCompleted() {
-                      _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+                  public void onNext(Long number) {
+                      _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
                   }
 
                   @Override
@@ -168,9 +168,10 @@ public void onError(Throwable e) {
                   }
 
                   @Override
-                  public void onNext(Long number) {
-                      _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
+                  public void onComplete() {
+                      _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
                   }
+
               });
     }
 
@@ -178,23 +179,16 @@ public void onNext(Long number) {
     public void btn5_RunTask5Times_IntervalOf3s() {
         _log(String.format("D5 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        Observable.just("Do task A right away")
-              .doOnNext(new Action1<String>() {
-                  @Override
-                  public void call(String input) {
-                      _log(String.format("D5 %s [%s]", input, _getCurrentTimestamp()));
-                  }
-              })
+        Flowable
+              .just("Do task A right away")
+              .doOnNext(input -> _log(String.format("D5 %s [%s]", input, _getCurrentTimestamp())))
               .delay(1, TimeUnit.SECONDS)
-              .doOnNext(new Action1<String>() {
-                  @Override
-                  public void call(String oldInput) {
-                      _log(String.format("D5 %s [%s]", "Doing Task B after a delay", _getCurrentTimestamp()));
-                  }
-              })
-              .subscribe(new Observer<String>() {
+              .doOnNext(oldInput -> _log(String.format("D5 %s [%s]",
+                                                       "Doing Task B after a delay",
+                                                       _getCurrentTimestamp())))
+              .subscribe(new DefaultSubscriber<String>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       _log(String.format("D5 [%s] XXX COMPLETE", _getCurrentTimestamp()));
                   }
 
@@ -236,7 +230,6 @@ private void _log(String logMsg) {
     }
 
     private String _getCurrentTimestamp() {
-        return new SimpleDateFormat("k:m:s:S a").format(new Date());
+        return new SimpleDateFormat("k:m:s:S a", Locale.getDefault()).format(new Date());
     }
-
 }

From 76032a9fb9ef7e59e046afbc22d336885e21ed7c Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:42:01 -0800
Subject: [PATCH 213/260] chore: update README + table of contents for e.g.s

---
 README.md | 143 ++++++++++++++++++++++++++++++++----------------------
 1 file changed, 86 insertions(+), 57 deletions(-)

diff --git a/README.md b/README.md
index cc6bb040..a424b64b 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,33 @@ Learning RxJava for Android by example
 
 This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://blog.kaush.co/2014/09/15/learning-rxjava-with-android-by-example/).
 
-I also gave a talk at a local meetup about warming up to RxJava here. Here's a link to the [video and slides](https://newcircle.com/s/post/1744/2015/06/29/learning-rxjava-for-android-by-example).
+I've also been giving talks about Learning Rx using many of the examples listed in this repo.
+
+* [Learning RxJava For Android by Example : Part 1](https://www.youtube.com/watch?v=k3D0cWyNno4) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rxjava-for-android-by-example)\] (SF Android Meetup 2015)
+* [Learning Rx by Example : Part 2](https://vimeo.com/190922794) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rx-by-example-2)\] (Øredev 2016)
+
 
 ## Examples:
 
-### Concurrency using schedulers
+1. [Background work & concurrency (using Schedulers)]()
+2. [Accumulate calls (using buffer)]()
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)]()
+5. [Two-way data binding for TextViews (using PublishSubject)]()
+6. [Simple and Advanced polling (using interval and repeatWhen)]()
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)]()
+8. [Form validation (using combineLatest)]()
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)]()
+10. [Simple timing demos (using timer, interval or delay)]()
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)]()
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)]()
+13. [Networking with Volley]()
+14. [Pagination with Rx (using Subjects)]()
+
+
+## Description
+
+### 1. Background work & concurrency (using Schedulers)
 
 A common requirement is to offload lengthy heavy I/O intensive operations to a background thread (non-UI thread) and feed the results back to the UI/main thread, on completion. This is a demo of how long-running operations can be offloaded to a background thread. After the operation is done, we resume back on the main thread. All using RxJava! Think of this as a replacement to AsyncTasks.
 
@@ -15,7 +37,7 @@ The long operation is simulated by a blocking Thread.sleep call (since this is d
 
 To really see this example shine. Hit the button multiple times and see how the button click (which is a UI operation) is never blocked because the long operation only runs in the background.
 
-### Accumulate calls (buffer)
+### 2. Accumulate calls (using buffer)
 
 This is a demo of how events can be accumulated using the "buffer" operation.
 
@@ -27,7 +49,7 @@ Note:
 
 If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/).
 
-### Instant/Auto searching (subject + debounce)
+### 3. Instant/Auto searching text listeners (using Subjects & debounce)
 
 This is a demo of how events can be swallowed in a way that only the last one is respected. A typical example of this is instant search result boxes. As you type the word "Bruce Lee", you don't want to execute searches for B, Br, Bru, Bruce, Bruce, Bruce L ... etc. But rather intelligently wait for a couple of moments, make sure the user has finished typing the whole word, and then shoot out a single call for "Bruce Lee".
 
@@ -35,38 +57,19 @@ As you type in the input box, it will not shoot out log messages at every single
 
 This is the debounce/throttleWithTimeout method in RxJava.
 
-### Retrofit and RxJava (zip, flatmap)
+### 4. Networking with Retrofit & RxJava (using zip, flatmap)
 
 [Retrofit from Square](http://square.github.io/retrofit/) is an amazing library that helps with easy networking (even if you haven't made the jump to RxJava just yet, you really should check it out). It works even better with RxJava and these are examples hitting the GitHub API, taken straight up from the android demigod-developer Jake Wharton's talk at Netflix. You can [watch the talk](https://www.youtube.com/watch?v=aEuNBk1b5OE#t=2480) at this link. Incidentally, my motivation to use RxJava was from attending this talk at Netflix.
 
-Since it was a presentation, Jake only put up the most important code snippets in [his slides](https://speakerdeck.com/jakewharton/2014-1). Also he uses Java 8 in them, so I flushed those examples out in ~~good~~ old Java 6. (Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
-
-### Volley Demo
-
-[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
-
-
-### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
-
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
-
-
-             (flatmap)
-    f1 ___________________ f3 _______
-             (flatmap)               |    (zip)
-    f2 ___________________ f4 _______| ___________  final output
-            \                        |
-             \____________ f5 _______|
-
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
+(Note: you're most likely to hit the GitHub API quota pretty fast so send in an OAuth-token as a parameter if you want to keep running these examples often).
 
-### Double binding with TextViews
+### 5. Two-way data binding for TextViews (using PublishSubject)
 
 Auto-updating views are a pretty cool thing. If you've dealt with Angular JS before, they have a pretty nifty concept called "two-way data binding", so when an HTML element is bound to a model/entity object, it constantly "listens" to changes on that entity and auto-updates its state based on the model. Using the technique in this example, you could potentially use a pattern like the [Presentation View Model pattern](http://martinfowler.com/eaaDev/PresentationModel.html) with great ease.
 
 While the example here is pretty rudimentary, the technique used to achieve the double binding using a `Publish Subject` is much more interesting.
 
-### Polling with Schedulers
+### 6. Simple and Advanced polling (using interval and repeatWhen)
 
 This is an example of polling using RxJava Schedulers. This is useful in cases, where you want to constantly poll a server and possibly get new data. The network call is "simulated" so it forces a delay before return a resultant string.
 
@@ -81,15 +84,33 @@ Instead of using a RetryWithDelay, we use a RepeatWithDelay here. To understand
 
 An alternative approach to delayed polling without the use of `repeatWhen` would be using chained nested delay observables. See [startExecutingWithExponentialBackoffDelay in the ExponentialBackOffFragment example](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java#L111).
 
-### RxBus - An event bus using RxJava + DebouncedBuffer
+### 7. Simple and Advanced exponential backoff (using delay and retryWhen)
 
-Have a look at the accompanying blog posts for details on this demo:
+[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
 
-1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
-2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
-3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
+The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
+
+#### Retry (if error) with exponential backoff
+
+Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+
+We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
 
-### Form validation - using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html)
+`RetryWithDelay` code snippet courtesy:
+
+* http://stackoverflow.com/a/25292833/159825
+* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+
+Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+
+#### "Repeat" with exponential backoff
+
+Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
+
+Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
+
+
+### 8. Form validation (using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html))
 
 Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
 
@@ -101,7 +122,8 @@ Note that the `Func3` function that checks for validity, kicks in only after ALL
 
 The value of this technique becomes more apparent when you have more number of input fields in a form. Handling it otherwise with a bunch of booleans makes the code cluttered and kind of difficult to follow. But using `.combineLatest` all that logic is concentrated in a nice compact block of code (I still use booleans but that was to make the example more readable).
 
-### Retrieve data first from a cache, then a network call
+
+### 9. Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)
 
 We have two source Observables: a disk (fast) cache and a network (fresh) call. Typically the disk Observable is much faster than the network Observable. But in order to demonstrate the working, we've also used a fake "slower" disk cache just to see how the operators behave.
 
@@ -126,7 +148,7 @@ To solve this problem you can use merge in combination with the super nifty `pub
 
 Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this old implementation.
 
-### Simple Timing demos using timer/interval/delay
+### 10. Simple timing demos (using timer, interval and delay)
 
 This is a super simple and straightforward example which shows you how to use RxJava's `timer`, `interval` and `delay` operators to handle a bunch of cases where you want to run a task at specific intervals. Basically say NO to Android `TimerTask`s.
 
@@ -138,46 +160,50 @@ Cases demonstrated here:
 4. run a task constantly every 3s, but after running it 5 times, terminate automatically
 5. run a task A, pause for sometime, then execute Task B, then terminate
 
-### Exponential backoff
+### 11. RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)  
 
-[Exponential backoff](https://en.wikipedia.org/wiki/Exponential_backoff) is a strategy where based on feedback from a certain output, we alter the rate of a process (usually reducing the number of retries or increasing the wait time before retrying or re-executing a certain process).
+There are accompanying blog posts that do a much better job of explaining the details on this demo:
 
-The concept makes more sense with examples. RxJava makes it (relatively) simple to implement such a strategy. My thanks to [Mike](https://twitter.com/m_evans10) for suggesting the idea.
+1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
+2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
+3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
 
-#### Retry (if error) with exponential backoff
+### 12. Persist data on Activity rotations (using Subjects and retained Fragments)
 
-Say you have a network failure. A sensible strategy would be to NOT keep retrying your network call every 1 second. It would be smart instead (nay... elegant!) to retry with increasing delays. So you try at second 1 to execute the network call, no dice? try after 10 seconds... negatory? try after 20 seconds, no cookie? try after 1 minute. If this thing is still failing, you got to give up on the network yo!
+A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
 
-We simulate this behaviour using RxJava with the [`retryWhen` operator](http://reactivex.io/documentation/operators/retry.html).
+This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
 
-`RetryWithDelay` code snippet courtesy:
+Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
 
-* http://stackoverflow.com/a/25292833/159825
-* Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
+I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
 
-#### "Repeat" with exponential backoff
+I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
 
-Another variant of the exponential backoff strategy is to execute an operation for a given number of times but with delayed intervals. So you execute a certain operation 1 second from now, then you execute it again 10 seconds from now, then you execute the operation 20 seconds from now. After a grand total of 3 times you stop executing.
 
-Simulating this behavior is actually way more simpler than the prevoius retry mechanism. You can use a variant of the `delay` operator to achieve this.
+### 13. Networking with Volley
 
-### Rotation Persist
+[Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
 
-A common question that's asked when using RxJava in Android is, "how do i resume the work of an observable if a configuration change occurs (activity rotation, language locale change etc.)?".
 
-This example shows you one strategy viz. using retained Fragments. I started using retained fragments as "worker fragments" after reading this [fantastic post by Alex Lockwood](http://www.androiddesignpatterns.com/2013/04/retaining-objects-across-config-changes.html) quite sometime back.
+### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
 
-Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
 
-*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
-I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
+
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
-I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjects-part-1/) on how to think about Subjects where I go into some specifics.
 
-### Pagination
+### 14. Pagination with Rx (using Subjects)
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
 
@@ -194,7 +220,10 @@ Here are some other fancy implementations (while i enjoyed reading them, i didn'
 
 ## Work in Progress:
 
-Examples that I would like to have here, but haven't found the time yet to flush out.
+_Examples that I would like to have here, but haven't found the time yet to flush out_
+
+(queue is empty) 
+
 
 ## Contributing:
 

From 922b9813a6dad1c2baa116231e2f7ad8222d3449 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:45:34 -0800
Subject: [PATCH 214/260] fix: readme update links

---
 README.md | 59 ++++++++++++++++++++++++++-----------------------------
 1 file changed, 28 insertions(+), 31 deletions(-)

diff --git a/README.md b/README.md
index a424b64b..ad2f8f65 100644
--- a/README.md
+++ b/README.md
@@ -11,21 +11,21 @@ I've also been giving talks about Learning Rx using many of the examples listed
 
 ## Examples:
 
-1. [Background work & concurrency (using Schedulers)]()
-2. [Accumulate calls (using buffer)]()
-3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java)
-4. [Networking with Retrofit & RxJava (using zip, flatmap)]()
-5. [Two-way data binding for TextViews (using PublishSubject)]()
-6. [Simple and Advanced polling (using interval and repeatWhen)]()
-7. [Simple and Advanced exponential backoff (using delay and retryWhen)]()
-8. [Form validation (using combineLatest)]()
-9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)]()
-10. [Simple timing demos (using timer, interval or delay)]()
-11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)]()
-12. [Persist data on Activity rotations (using Subjects and retained Fragments)]()
-13. [Networking with Volley]()
-14. [Pagination with Rx (using Subjects)]()
-
+1. [Background work & concurrency (using Schedulers)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#1-background-work--concurrency-using-schedulers)
+2. [Accumulate calls (using buffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#2-accumulate-calls-using-buffer)
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#3-instantauto-searching-text-listeners-using-subjects--debounce)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#4-networking-with-retrofit--rxjava-using-zip-flatmap)
+5. [Two-way data binding for TextViews (using PublishSubject)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#5-two-way-data-binding-for-textviews-using-publishsubject)
+6. [Simple and Advanced polling (using interval and repeatWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#6-simple-and-advanced-polling-using-interval-and-repeatwhen)
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#7-simple-and-advanced-exponential-backoff-using-delay-and-retrywhen)
+8. [Form validation (using combineLatest)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#8-form-validation-using-combinelatest)
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#9-pseudo-caching--retrieve-data-first-from-a-cache-then-a-network-call-using-concat-concateager-merge-or-publish)
+10. [Simple timing demos (using timer, interval or delay)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#10-simple-timing-demos-using-timer-interval-and-delay)
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#11-rxbus--event-bus-using-rxjava-using-rxrelay-never-terminating-subjects-and-debouncedbuffer)
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
+13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
+14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)]()
 
 ## Description
 
@@ -187,22 +187,6 @@ I wrote [another blog post](https://tech.instacart.com/how-to-think-about-subjec
 
 [Volley](http://developer.android.com/training/volley/index.html) is another networking library introduced by [Google at IO '13](https://www.youtube.com/watch?v=yhv8l9F44qo). A kind citizen of github contributed this example so we know how to integrate Volley with RxJava.
 
-
-### Orchestrating Observables. Make parallel network calls, then combine the result into a single data point  (flatmap + zip)
-
-The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
-
-
-             (flatmap)
-    f1 ___________________ f3 _______
-             (flatmap)               |    (zip)
-    f2 ___________________ f4 _______| ___________  final output
-            \                        |
-             \____________ f5 _______|
-
-The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
-
-
 ### 14. Pagination with Rx (using Subjects)
 
 I leverage the simple use of a Subject here. Honestly, if you don't have your items coming down via an `Observable` already (like through Retrofit or a network request), there's no good reason to use Rx and complicate things.
@@ -217,6 +201,19 @@ Here are some other fancy implementations (while i enjoyed reading them, i didn'
 * [Eugene's very comprehensive Pagination sample](https://github.com/matzuk/PaginationSample)
 * [Recursive Paging example](http://stackoverflow.com/questions/28047272/handle-paging-with-rxjava)
 
+### 15. Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)
+
+The below ascii diagram expresses the intention of our next example with panache. f1,f2,f3,f4,f5 are essentially network calls that when made, give back a result that's needed for a future calculation.
+
+
+             (flatmap)
+    f1 ___________________ f3 _______
+             (flatmap)               |    (zip)
+    f2 ___________________ f4 _______| ___________  final output
+            \                        |
+             \____________ f5 _______|
+
+The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
 ## Work in Progress:
 

From 3353483e83d28fe0361b8a9208544c5490015400 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <kaushikgopal@users.noreply.github.com>
Date: Sun, 27 Nov 2016 12:46:20 -0800
Subject: [PATCH 215/260] fix: link for orchestrating observables

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ad2f8f65..6fa4e271 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ I've also been giving talks about Learning Rx using many of the examples listed
 12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
 13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
 14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
-15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)]()
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
 
 ## Description
 

From bdcd334333494760da7da8ba8915089fe845ed47 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 21:28:02 +0100
Subject: [PATCH 216/260] Updated retrofit setup to return RxJava2 observables.

---
 .../com/morihacky/android/rxjava/retrofit/GithubApi.java    | 2 +-
 .../morihacky/android/rxjava/retrofit/GithubService.java    | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
index d65cd92a..d42c2ef9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -2,9 +2,9 @@
 
 import java.util.List;
 
+import io.reactivex.Observable;
 import retrofit2.http.GET;
 import retrofit2.http.Path;
-import rx.Observable;
 
 public interface GithubApi {
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
index 0a8d33d6..d7f24a88 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
@@ -2,11 +2,11 @@
 
 import android.text.TextUtils;
 
+import com.jakewharton.retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
+
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
-import okhttp3.Response;
 import retrofit2.Retrofit;
-import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
 import retrofit2.converter.gson.GsonConverterFactory;
 
 import static java.lang.String.format;
@@ -17,7 +17,7 @@ private GithubService() {
     }
 
     public static GithubApi createGithubService(final String githubToken) {
-        Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJavaCallAdapterFactory.create())
+        Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJava2CallAdapterFactory.create())
               .addConverterFactory(GsonConverterFactory.create())
               .baseUrl("https://api.github.com");
 

From ecdb7ff60ea380eb9f5b4b4ad0d220ca37c10d31 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:43:02 +0100
Subject: [PATCH 217/260] Adjusted retrofit related examples

---
 .../rxjava/fragments/PseudoCacheFragment.java | 59 +++++++++++--------
 .../fragments/PseudoCacheMergeFragment.java   | 25 ++++----
 .../RetrofitAsyncTaskDeathFragment.java       | 10 ++--
 .../rxjava/fragments/RetrofitFragment.java    | 32 +++++-----
 4 files changed, 68 insertions(+), 58 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
index 9049d3f3..e4d3de1a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
@@ -10,22 +10,25 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.TextView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
 public class PseudoCacheFragment
@@ -61,9 +64,9 @@ public void onConcatBtnClicked() {
         Observable.concat(getSlowCachedDiskData(), getFreshNetworkData())
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -86,12 +89,16 @@ public void onConcatEagerBtnClicked() {
         infoText.setText(R.string.msg_pseudoCache_demoInfo_concatEager);
         wireupDemo();
 
-        Observable.concatEager(getSlowCachedDiskData(), getFreshNetworkData())
+        List<Observable<Contributor>> observables = new ArrayList<>(2);
+        observables.add(getSlowCachedDiskData());
+        observables.add(getFreshNetworkData());
+
+        Observable.concatEager(observables)
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -118,9 +125,9 @@ public void onMergeBtnClicked() {
         Observable.merge(getCachedDiskData(), getFreshNetworkData())
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -146,9 +153,9 @@ public void onMergeSlowBtnClicked() {
         Observable.merge(getSlowCachedDiskData(), getFreshNetworkData())
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -177,9 +184,9 @@ public void onMergeOptimizedBtnClicked() {
                                               getCachedDiskData().takeUntil(network)))
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -208,9 +215,9 @@ public void onMergeOptimizedWithSlowDiskBtnClicked() {
                                               getSlowCachedDiskData().takeUntil(network)))
               .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Contributor>() {
+              .subscribe(new DisposableObserver<Contributor>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -259,10 +266,10 @@ private Observable<Contributor> getCachedDiskData() {
             list.add(c);
         }
 
-        return Observable.from(list)//
-              .doOnSubscribe(() -> new Handler(Looper.getMainLooper())//
+        return Observable.fromIterable(list)//
+              .doOnSubscribe((data) -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(disk) cache subscribed")))//
-              .doOnCompleted(() -> new Handler(Looper.getMainLooper())//
+              .doOnComplete(() -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(disk) cache completed")));
     }
 
@@ -271,10 +278,10 @@ private Observable<Contributor> getFreshNetworkData() {
         GithubApi githubService = GithubService.createGithubService(githubToken);
 
         return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::from)
-              .doOnSubscribe(() -> new Handler(Looper.getMainLooper())//
+              .flatMap(Observable::fromIterable)
+              .doOnSubscribe((data) -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(network) subscribed")))//
-              .doOnCompleted(() -> new Handler(Looper.getMainLooper())//
+              .doOnComplete(() -> new Handler(Looper.getMainLooper())//
                     .post(() -> adapterSubscriptionInfo.add("(network) completed")));
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 6fbaca18..ec2d49e5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -8,20 +8,23 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.retrofit.Contributor;
 import com.morihacky.android.rxjava.retrofit.GithubApi;
 import com.morihacky.android.rxjava.retrofit.GithubService;
+
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-import rx.Observable;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
 public class PseudoCacheMergeFragment
@@ -59,9 +62,9 @@ public void onDemoPseudoCacheClicked() {
         Observable.merge(_getCachedData(), _getFreshData())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Pair<Contributor, Long>>() {
+              .subscribe(new DisposableObserver<Pair<Contributor,Long>>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("done loading all data");
                   }
 
@@ -114,7 +117,7 @@ private Observable<Pair<Contributor, Long>> _getCachedData() {
             list.add(dataWithAgePair);
         }
 
-        return Observable.from(list);
+        return Observable.fromIterable(list);
     }
 
     private Observable<Pair<Contributor, Long>> _getFreshData() {
@@ -122,7 +125,7 @@ private Observable<Pair<Contributor, Long>> _getFreshData() {
         GithubApi githubService = GithubService.createGithubService(githubToken);
 
         return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::from)
+              .flatMap(Observable::fromIterable)
               .map(contributor -> new Pair<>(contributor, System.currentTimeMillis()));
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 5b42e099..180462c9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -21,9 +21,9 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import rx.Observer;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 
 import static java.lang.String.format;
 
@@ -89,9 +89,9 @@ protected void onPostExecute(User user) {
         _githubService.user(_username.getText().toString())
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<User>() {
+              .subscribe(new DisposableObserver<User>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                   }
 
                   @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 4a0a31bb..96875d60 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -23,12 +23,11 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscriber;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
-import rx.subscriptions.CompositeSubscription;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
 import static android.text.TextUtils.isEmpty;
@@ -43,7 +42,7 @@ public class RetrofitFragment
 
     private ArrayAdapter<String> _adapter;
     private GithubApi _githubService;
-    private CompositeSubscription _subscriptions;
+    private CompositeDisposable _disposables;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -51,7 +50,7 @@ public void onCreate(Bundle savedInstanceState) {
         String githubToken = getResources().getString(R.string.github_oauth_token);
         _githubService = GithubService.createGithubService(githubToken);
 
-        _subscriptions = new CompositeSubscription();
+        _disposables = new CompositeDisposable();
     }
 
     @Override
@@ -78,20 +77,21 @@ public void onDestroyView() {
     @Override
     public void onDestroy() {
         super.onDestroy();
-        _subscriptions.unsubscribe();
+        _disposables.dispose();
     }
 
     @OnClick(R.id.btn_demo_retrofit_contributors)
     public void onListContributorsClicked() {
         _adapter.clear();
 
-        _subscriptions.add(//
+        _disposables.add(//
               _githubService.contributors(_username.getText().toString(), _repo.getText().toString())
                     .subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe(new Observer<List<Contributor>>() {
+                    .subscribeWith(new DisposableObserver<List<Contributor>>() {
+
                         @Override
-                        public void onCompleted() {
+                        public void onComplete() {
                             Timber.d("Retrofit call 1 completed");
                         }
 
@@ -121,8 +121,8 @@ public void onNext(List<Contributor> contributors) {
     public void onListContributorsWithFullUserInfoClicked() {
         _adapter.clear();
 
-        _subscriptions.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-              .flatMap(Observable::from)
+        _disposables.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
+              .flatMap(Observable::fromIterable)
               .flatMap(contributor -> {
                   Observable<User> _userObservable = _githubService.user(contributor.login)
                         .filter(user -> !isEmpty(user.name) && !isEmpty(user.email));
@@ -133,9 +133,9 @@ public void onListContributorsWithFullUserInfoClicked() {
               })
               .subscribeOn(Schedulers.newThread())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Subscriber<Pair>() {
+              .subscribeWith(new DisposableObserver<Pair<User,Contributor>>() {
                   @Override
-                  public void onCompleted() {
+                  public void onComplete() {
                       Timber.d("Retrofit call 2 completed ");
                   }
 

From ae5ce9f2891acf52d31692757ab43ff9829728e3 Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:46:09 +0100
Subject: [PATCH 218/260] Updated RxJava to 2.0.1

---
 app/build.gradle | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 87f405ff..aba456c3 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -41,12 +41,12 @@ dependencies {
     // ----------- Rx dependencies
 
     compile 'io.reactivex:rxjava:1.1.4'
-    compile 'io.reactivex.rxjava2:rxjava:2.0.0'
+    compile 'io.reactivex.rxjava2:rxjava:2.0.1'
 
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
     compile 'io.reactivex:rxandroid:1.2.0'
-    compile 'io.reactivex.rxjava2:rxandroid:2.0.0'
+    compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
     // libs like rxbinding + rxjava-math haven't been ported to RxJava 2.x yet, so this helps
     compile "com.github.akarnokd:rxjava2-interop:0.6.1"

From 8e197da573c379c9f296a6ee2468c1c45f9e361d Mon Sep 17 00:00:00 2001
From: Marcin Kunert <the.martines@gmail.com>
Date: Sun, 27 Nov 2016 22:51:45 +0100
Subject: [PATCH 219/260] Replaced RxJava1 retrofit adapter with the RxJava2
 version

---
 app/build.gradle | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/build.gradle b/app/build.gradle
index aba456c3..fc42adfc 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -54,7 +54,7 @@ dependencies {
     compile 'io.reactivex:rxjava-math:1.0.0'
     compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
-    compile "com.squareup.retrofit2:adapter-rxjava:${retrofitVersion}"
+    compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
 
 
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'

From 5585bbad7e4f9d574a42aa7f6da5fc7c0691df3d Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 15:07:49 -0800
Subject: [PATCH 220/260] fix: remove silly comment style helpers

---
 .../pagination/PaginationAutoFragment.java    | 63 ++++++++++---------
 1 file changed, 32 insertions(+), 31 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index 17ee72f2..c6aefde6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -65,38 +65,38 @@ public void onStart() {
         super.onStart();
         _subscriptions = new CompositeSubscription();
 
-        Subscription s2 =//
-              _paginator.onBackpressureDrop()
-                    .doOnNext(i -> {
-                        _requestUnderWay = true;
-                        _progressBar.setVisibility(View.VISIBLE);
-                    })
-                    .concatMap(this::_itemsFromNetworkCall)
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .map(items -> {
-                        _adapter.addItems(items);
-                        _adapter.notifyDataSetChanged();
-                        return null;
-                    })
-                    .doOnNext(i -> {
-                        _requestUnderWay = false;
-                        _progressBar.setVisibility(View.INVISIBLE);
-                    })
-                    .subscribe();
+        Subscription s2 = _paginator
+              .onBackpressureDrop()
+              .doOnNext(i -> {
+                  _requestUnderWay = true;
+                  _progressBar.setVisibility(View.VISIBLE);
+              })
+              .concatMap(this::_itemsFromNetworkCall)
+              .observeOn(AndroidSchedulers.mainThread())
+              .map(items -> {
+                  _adapter.addItems(items);
+                  _adapter.notifyDataSetChanged();
+                  return null;
+              })
+              .doOnNext(i -> {
+                  _requestUnderWay = false;
+                  _progressBar.setVisibility(View.INVISIBLE);
+              })
+              .subscribe();
 
         // I'm using an RxBus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
-        Subscription s1 =//
-              _bus.asObservable()//
-                    .filter(o -> !_requestUnderWay)//
-                    .subscribe(event -> {
-                        if (event instanceof PaginationAutoAdapter.PageEvent) {
-
-                            // trigger the paginator for the next event
-                            int nextPage = _adapter.getItemCount();
-                            _paginator.onNext(nextPage);
-                        }
-                    });
+        Subscription s1 = _bus
+              .asObservable()
+              .filter(o -> !_requestUnderWay)
+              .subscribe(event -> {
+                  if (event instanceof PaginationAutoAdapter.PageEvent) {
+
+                      // trigger the paginator for the next event
+                      int nextPage = _adapter.getItemCount();
+                      _paginator.onNext(nextPage);
+                  }
+              });
 
         _subscriptions.add(s1);
         _subscriptions.add(s2);
@@ -114,8 +114,9 @@ public void onStop() {
      * Fake Observable that simulates a network call and then sends down a list of items
      */
     private Observable<List<String>> _itemsFromNetworkCall(int pageStart) {
-        return Observable.just(true)//
-              .observeOn(AndroidSchedulers.mainThread())//
+        return Observable
+              .just(true)
+              .observeOn(AndroidSchedulers.mainThread())
               .delay(2, TimeUnit.SECONDS)
               .map(dummy -> {
                   List<String> items = new ArrayList<>();

From c240b93357647a4c51df7e8775c2252426480aa9 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 16:24:47 -0800
Subject: [PATCH 221/260] feat: port pagination + bus examples fix: no null
 returns

* port example Pagination with Rx (using Subjects)
* port example RxBus : event bus using RxJava (using RxRelay (never
terminating Subjects) and debouncedBuffer)
* Observables don't allow returning null anymore
---
 .../com/morihacky/android/rxjava/MyApp.java   |  4 +-
 .../pagination/PaginationAutoFragment.java    | 38 +++++-----
 .../rxjava/pagination/PaginationFragment.java | 76 +++++++++----------
 .../morihacky/android/rxjava/rxbus/RxBus.java |  9 ++-
 .../rxbus/RxBusDemo_Bottom1Fragment.java      | 33 ++++----
 .../rxbus/RxBusDemo_Bottom2Fragment.java      | 58 +++++++-------
 .../rxbus/RxBusDemo_Bottom3Fragment.java      | 31 ++++----
 7 files changed, 124 insertions(+), 125 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index 2a8fdc17..899b56d6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -1,7 +1,6 @@
 package com.morihacky.android.rxjava;
 
 import android.app.Application;
-
 import com.morihacky.android.rxjava.volley.MyVolley;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
@@ -28,6 +27,9 @@ public void onCreate() {
         _instance = (MyApp) getApplicationContext();
         _refWatcher = LeakCanary.install(this);
 
+        // for better RxJava debugging
+        //RxJavaHooks.enableAssemblyTracking();
+
         // Initialize Volley
         MyVolley.init(this);
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index c6aefde6..a506c629 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -14,14 +14,14 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
+import io.reactivex.Flowable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.processors.PublishProcessor;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.subjects.PublishSubject;
-import rx.subscriptions.CompositeSubscription;
 
 public class PaginationAutoFragment
       extends BaseFragment {
@@ -31,9 +31,9 @@ public class PaginationAutoFragment
 
     private PaginationAutoAdapter _adapter;
     private RxBus _bus;
-    private PublishSubject<Integer> _paginator;
+    private CompositeDisposable _disposables;
+    private PublishProcessor<Integer> _paginator;
     private boolean _requestUnderWay = false;
-    private CompositeSubscription _subscriptions;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -57,15 +57,15 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         _adapter = new PaginationAutoAdapter(_bus);
         _pagingList.setAdapter(_adapter);
 
-        _paginator = PublishSubject.create();
+        _paginator = PublishProcessor.create();
     }
 
     @Override
     public void onStart() {
         super.onStart();
-        _subscriptions = new CompositeSubscription();
+        _disposables = new CompositeDisposable();
 
-        Subscription s2 = _paginator
+        Disposable d2 = _paginator
               .onBackpressureDrop()
               .doOnNext(i -> {
                   _requestUnderWay = true;
@@ -76,7 +76,8 @@ public void onStart() {
               .map(items -> {
                   _adapter.addItems(items);
                   _adapter.notifyDataSetChanged();
-                  return null;
+
+                  return items;
               })
               .doOnNext(i -> {
                   _requestUnderWay = false;
@@ -86,8 +87,9 @@ public void onStart() {
 
         // I'm using an RxBus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
-        Subscription s1 = _bus
-              .asObservable()
+
+        Disposable d1 = _bus
+              .asFlowable()
               .filter(o -> !_requestUnderWay)
               .subscribe(event -> {
                   if (event instanceof PaginationAutoAdapter.PageEvent) {
@@ -98,8 +100,8 @@ public void onStart() {
                   }
               });
 
-        _subscriptions.add(s1);
-        _subscriptions.add(s2);
+        _disposables.add(d1);
+        _disposables.add(d2);
 
         _paginator.onNext(0);
     }
@@ -107,14 +109,14 @@ public void onStart() {
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     /**
      * Fake Observable that simulates a network call and then sends down a list of items
      */
-    private Observable<List<String>> _itemsFromNetworkCall(int pageStart) {
-        return Observable
+    private Flowable<List<String>> _itemsFromNetworkCall(int pageStart) {
+        return Flowable
               .just(true)
               .observeOn(AndroidSchedulers.mainThread())
               .delay(2, TimeUnit.SECONDS)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index 5973e024..7569b3c9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -8,33 +8,30 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ProgressBar;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
-
+import io.reactivex.Flowable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.processors.PublishProcessor;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import rx.Observable;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.subjects.PublishSubject;
-import rx.subscriptions.CompositeSubscription;
-
-public class PaginationFragment extends BaseFragment {
+public class PaginationFragment
+      extends BaseFragment {
 
     @Bind(R.id.list_paging) RecyclerView _pagingList;
     @Bind(R.id.progress_paging) ProgressBar _progressBar;
-
-    private CompositeSubscription _subscriptions;
     private PaginationAdapter _adapter;
     private RxBus _bus;
-    private PublishSubject<Integer> _paginator;
+    private CompositeDisposable _disposables;
+    private PublishProcessor<Integer> _paginator;
 
     @Override
     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
@@ -49,56 +46,60 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
         _adapter = new PaginationAdapter(_bus);
         _pagingList.setAdapter(_adapter);
 
-        _paginator = PublishSubject.create();
+        _paginator = PublishProcessor.create();
     }
 
     @Override
     public void onStart() {
         super.onStart();
-        _subscriptions = new CompositeSubscription();
+        _disposables = new CompositeDisposable();
 
-        Subscription s2 =//
-              _paginator//
-                    .onBackpressureDrop()//
-                    .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))//
-                    .observeOn(AndroidSchedulers.mainThread()).map(items -> {
+        Disposable d2 = _paginator
+              .onBackpressureDrop()
+              .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))
+              .observeOn(AndroidSchedulers.mainThread())
+              .map(items -> {
                   int start = _adapter.getItemCount() - 1;
 
                   _adapter.addItems(items);
                   _adapter.notifyItemRangeInserted(start, 10);
 
                   _progressBar.setVisibility(View.INVISIBLE);
-                  return null;
-              })//
-                    .subscribe();
+
+                  return items;
+              })
+              .subscribe();
 
         // I'm using an Rxbus purely to hear from a nested button click
         // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
-        Subscription s1 = _bus.asObservable().subscribe(event -> {
-            if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
+        Disposable d1 = _bus
+              .asFlowable()
+              .subscribe(event -> {
+                  if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
 
-                // trigger the paginator for the next event
-                int nextPage = _adapter.getItemCount() - 1;
-                _paginator.onNext(nextPage);
+                      // trigger the paginator for the next event
+                      int nextPage = _adapter.getItemCount() - 1;
+                      _paginator.onNext(nextPage);
 
-            }
-        });
+                  }
+              });
 
-        _subscriptions.add(s1);
-        _subscriptions.add(s2);
+        _disposables.add(d1);
+        _disposables.add(d2);
     }
 
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     /**
      * Fake Observable that simulates a network call and then sends down a list of items
      */
-    private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
-        return Observable.just(true)
+    private Flowable<List<String>> _itemsFromNetworkCall(int start, int count) {
+        return Flowable
+              .just(true)
               .observeOn(AndroidSchedulers.mainThread())
               .doOnNext(dummy -> _progressBar.setVisibility(View.VISIBLE))
               .delay(2, TimeUnit.SECONDS)
@@ -111,7 +112,6 @@ private Observable<List<String>> _itemsFromNetworkCall(int start, int count) {
               });
     }
 
-
     // -----------------------------------------------------------------------------------
     // WIRING up the views required for this example
 
@@ -123,6 +123,4 @@ public View onCreateView(LayoutInflater inflater,
         ButterKnife.bind(this, layout);
         return layout;
     }
-
-
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index 545239e6..a953e20f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -2,8 +2,8 @@
 
 import com.jakewharton.rxrelay.PublishRelay;
 import com.jakewharton.rxrelay.Relay;
-
-import rx.Observable;
+import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import io.reactivex.Flowable;
 
 /**
  * courtesy: https://gist.github.com/benjchristensen/04eef9ca0851f3a5d7bf
@@ -16,8 +16,9 @@ public void send(Object o) {
         _bus.call(o);
     }
 
-    public Observable<Object> asObservable() {
-        return _bus.asObservable();
+    public Flowable<Object> asFlowable() {
+        // this won't be necessary after https://github.com/JakeWharton/RxRelay/pull/20 is complete
+        return RxJavaInterop.toV2Flowable(_bus.asObservable());
     }
 
     public boolean hasObservers() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 439888f4..4ebb3200 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -7,21 +7,19 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import rx.subscriptions.CompositeSubscription;
+import io.reactivex.disposables.CompositeDisposable;
 
 public class RxBusDemo_Bottom1Fragment
       extends BaseFragment {
 
     @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    private CompositeDisposable _disposables;
     private RxBus _rxBus;
-    private CompositeSubscription _subscriptions;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -41,26 +39,29 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     @Override
     public void onStart() {
         super.onStart();
-        _subscriptions = new CompositeSubscription();
+        _disposables = new CompositeDisposable();
 
-        _subscriptions//
-              .add(_rxBus.asObservable()//
-                    .subscribe(event -> {
-                        if (event instanceof RxBusDemoFragment.TapEvent) {
-                            _showTapText();
-                        }
-                    }));
+        _disposables.add(_rxBus
+                               .asFlowable()
+                               .subscribe(event -> {
+                                   if (event instanceof RxBusDemoFragment.TapEvent) {
+                                       _showTapText();
+                                   }
+                               }));
     }
 
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     private void _showTapText() {
         _tapEventTxtShow.setVisibility(View.VISIBLE);
         _tapEventTxtShow.setAlpha(1f);
-        ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+        ViewCompat
+              .animate(_tapEventTxtShow)
+              .alphaBy(-1f)
+              .setDuration(400);
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 5fd50e3b..a2a99587 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -7,27 +7,25 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
-
+import io.reactivex.Flowable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import rx.Observable;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.subscriptions.CompositeSubscription;
-
 public class RxBusDemo_Bottom2Fragment
       extends BaseFragment {
 
     @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
     @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+
     private RxBus _rxBus;
-    private CompositeSubscription _subscriptions;
+    private CompositeDisposable _disposables;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -47,32 +45,32 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     @Override
     public void onStart() {
         super.onStart();
-        _subscriptions = new CompositeSubscription();
-
-        Observable<Object> tapEventEmitter = _rxBus.asObservable().share();
-
-        _subscriptions//
-              .add(tapEventEmitter.subscribe(event -> {
-                  if (event instanceof RxBusDemoFragment.TapEvent) {
-                      _showTapText();
-                  }
-              }));
-
-        Observable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
-        Observable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
-
-        _subscriptions//
-              .add(debouncedBufferEmitter//
-                    .observeOn(AndroidSchedulers.mainThread())//
-                    .subscribe(taps -> {
-                        _showTapCount(taps.size());
-                    }));
+        _disposables = new CompositeDisposable();
+
+        Flowable<Object> tapEventEmitter = _rxBus
+              .asFlowable()
+              .share();
+
+        _disposables.add(tapEventEmitter.subscribe(event -> {
+            if (event instanceof RxBusDemoFragment.TapEvent) {
+                _showTapText();
+            }
+        }));
+
+        Flowable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
+        Flowable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
+
+        _disposables.add(debouncedBufferEmitter
+                               .observeOn(AndroidSchedulers.mainThread())
+                               .subscribe(taps -> {
+                                   _showTapCount(taps.size());
+                               }));
     }
 
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index 80ee38fb..d4125f0a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -7,26 +7,23 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
-
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.flowables.ConnectableFlowable;
 import java.util.concurrent.TimeUnit;
 
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.observables.ConnectableObservable;
-import rx.subscriptions.CompositeSubscription;
-
 public class RxBusDemo_Bottom3Fragment
       extends BaseFragment {
 
     @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
     @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
     private RxBus _rxBus;
-    private CompositeSubscription _subscriptions;
+    private CompositeDisposable _disposables;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -46,32 +43,32 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     @Override
     public void onStart() {
         super.onStart();
-        _subscriptions = new CompositeSubscription();
+        _disposables = new CompositeDisposable();
 
-        ConnectableObservable<Object> tapEventEmitter = _rxBus.asObservable().publish();
+        ConnectableFlowable<Object> tapEventEmitter = _rxBus.asFlowable().publish();
 
-        _subscriptions//
-              .add(tapEventEmitter.subscribe(event -> {
+        _disposables//
+                    .add(tapEventEmitter.subscribe(event -> {
                   if (event instanceof RxBusDemoFragment.TapEvent) {
                       _showTapText();
                   }
               }));
 
-        _subscriptions
+        _disposables
               .add(tapEventEmitter.publish(stream ->
                     stream.buffer(stream.debounce(1, TimeUnit.SECONDS)))
-                    .observeOn(AndroidSchedulers.mainThread()).subscribe(taps -> {
+                                  .observeOn(AndroidSchedulers.mainThread()).subscribe(taps -> {
                         _showTapCount(taps.size());
                     }));
 
-        _subscriptions.add(tapEventEmitter.connect());
+        _disposables.add(tapEventEmitter.connect());
 
     }
 
     @Override
     public void onStop() {
         super.onStop();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     // -----------------------------------------------------------------------------------

From 669613506b8d5ed1b375213122c85845326327a9 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 16:40:05 -0800
Subject: [PATCH 222/260] feat: port example Background work & concurrency
 (using Schedulers)

---
 ...ConcurrencyWithSchedulersDemoFragment.java | 29 ++++++++++---------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index dacfaa0b..f97194d8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -15,14 +15,13 @@
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import java.util.ArrayList;
 import java.util.List;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
-import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
 public class ConcurrencyWithSchedulersDemoFragment
@@ -33,13 +32,13 @@ public class ConcurrencyWithSchedulersDemoFragment
 
     private LogAdapter _adapter;
     private List<String> _logs;
-    private CompositeSubscription _subscriptions = new CompositeSubscription();
+    private CompositeDisposable _disposables = new CompositeDisposable();
 
     @Override
     public void onDestroy() {
         super.onDestroy();
         ButterKnife.unbind(this);
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     @Override
@@ -63,12 +62,14 @@ public void startLongOperation() {
         _progress.setVisibility(View.VISIBLE);
         _log("Button Clicked");
 
-        Subscription s = _getObservable()//
+        DisposableObserver<Boolean> d = _getDisposableObserver();
+
+        _getObservable()
               .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(_getObserver()); // Observer
+              .subscribe(d);
 
-        _subscriptions.add(s);
+        _disposables.add(d);
     }
 
     private Observable<Boolean> _getObservable() {
@@ -86,11 +87,11 @@ private Observable<Boolean> _getObservable() {
      * 2. onError
      * 3. onNext
      */
-    private Observer<Boolean> _getObserver() {
-        return new Observer<Boolean>() {
+    private DisposableObserver<Boolean> _getDisposableObserver() {
+        return new DisposableObserver<Boolean>() {
 
             @Override
-            public void onCompleted() {
+            public void onComplete() {
                 _log("On complete");
                 _progress.setVisibility(View.INVISIBLE);
             }

From ca56b5a0f95b4a37685fdced0c971a0db0176c7e Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 16:43:22 -0800
Subject: [PATCH 223/260] feat:  port example Two-way data binding for
 TextViews (using PublishSubject)

---
 .../DoubleBindingTextViewFragment.java        | 26 +++++++++----------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index a79fb2b5..d17b1e3c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -7,14 +7,13 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-
-import com.morihacky.android.rxjava.R;
-
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import butterknife.OnTextChanged;
-import rx.Subscription;
-import rx.subjects.PublishSubject;
+import com.morihacky.android.rxjava.R;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.processors.PublishProcessor;
+
 
 import static android.text.TextUtils.isEmpty;
 
@@ -25,8 +24,8 @@ public class DoubleBindingTextViewFragment
     @Bind(R.id.double_binding_num2) EditText _number2;
     @Bind(R.id.double_binding_result) TextView _result;
 
-    Subscription _subscription;
-    PublishSubject<Float> _resultEmitterSubject;
+    Disposable _disposable;
+    PublishProcessor<Float> _resultEmitterSubject;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -35,12 +34,11 @@ public View onCreateView(LayoutInflater inflater,
         View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
         ButterKnife.bind(this, layout);
 
-        _resultEmitterSubject = PublishSubject.create();
-        _subscription = _resultEmitterSubject//
-              .asObservable()//
-              .subscribe(aFloat -> {
-                  _result.setText(String.valueOf(aFloat));
-              });
+        _resultEmitterSubject = PublishProcessor.create();
+
+        _disposable = _resultEmitterSubject.subscribe(aFloat -> {
+            _result.setText(String.valueOf(aFloat));
+        });
 
         onNumberChanged();
         _number2.requestFocus();
@@ -67,7 +65,7 @@ public void onNumberChanged() {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        _subscription.unsubscribe();
+        _disposable.dispose();
         ButterKnife.unbind(this);
     }
 }

From 74ece665de794d819d7884dcf5962e60332774e4 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 17:02:44 -0800
Subject: [PATCH 224/260] feat: port example Simple and Advanced polling (using
 interval and repeatWhen)

---
 .../rxjava/fragments/PollingFragment.java     | 109 +++++++++---------
 1 file changed, 52 insertions(+), 57 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 3f4bb82a..9f4398a9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -10,20 +10,19 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
-
+import io.reactivex.Flowable;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.functions.Function;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observable;
-import rx.functions.Func1;
-import rx.subscriptions.CompositeSubscription;
+import org.reactivestreams.Publisher;
 import timber.log.Timber;
 
 public class PollingFragment
@@ -36,23 +35,15 @@ public class PollingFragment
     @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
-    private List<String> _logs;
-
-    private CompositeSubscription _subscriptions;
     private int _counter = 0;
-
+    private CompositeDisposable _disposables;
+    private List<String> _logs;
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        _subscriptions = new CompositeSubscription();
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
+        _disposables = new CompositeDisposable();
     }
 
     @Override
@@ -64,10 +55,16 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @Override
     public void onDestroy() {
         super.onDestroy();
-        _subscriptions.unsubscribe();
+        _disposables.clear();
         ButterKnife.unbind(this);
     }
 
@@ -76,17 +73,21 @@ public void onStartSimplePollingClicked() {
 
         final int pollCount = POLL_COUNT;
 
-        _subscriptions.add(//
-              Observable.interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
-                    .map(this::_doNetworkCallAndGetStringResult)//
-                    .take(pollCount)
-                    .doOnSubscribe(() ->
-                          _log(String.format("Start simple polling - %s", _counter)))
-                    .subscribe(taskName -> {
-                        _log(String.format(Locale.US, "Executing polled task [%s] now time : [xx:%02d]",
-                              taskName, _getSecondHand()));
-                    })
-        );
+        Disposable d = Flowable
+              .interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
+              .map(this::_doNetworkCallAndGetStringResult)
+              .take(pollCount)
+              .doOnSubscribe(subscription -> {
+                  _log(String.format("Start simple polling - %s", _counter));
+              })
+              .subscribe(taskName -> {
+                  _log(String.format(Locale.US,
+                                     "Executing polled task [%s] now time : [xx:%02d]",
+                                     taskName,
+                                     _getSecondHand()));
+              });
+
+        _disposables.add(d);
     }
 
     @OnClick(R.id.btn_start_increasingly_delayed_polling)
@@ -96,19 +97,15 @@ public void onStartIncreasinglyDelayedPolling() {
         final int pollingInterval = POLLING_INTERVAL;
         final int pollCount = POLL_COUNT;
 
-        _log(String.format(Locale.US, "Start increasingly delayed polling now time: [xx:%02d]",
-              _getSecondHand()));
-
-        _subscriptions.add(//
-              Observable.just(1)
-                    .repeatWhen(new RepeatWithDelay(pollCount, pollingInterval))
-                    .subscribe(o -> {
-                        _log(String.format(Locale.US, "Executing polled task now time : [xx:%02d]",
-                              _getSecondHand()));
-                    }, e -> {
-                        Timber.d(e, "arrrr. Error");
-                    })
-        );
+        _log(String.format(Locale.US, "Start increasingly delayed polling now time: [xx:%02d]", _getSecondHand()));
+
+        _disposables.add(Flowable
+                               .just(1L)
+                               .repeatWhen(new RepeatWithDelay(pollCount, pollingInterval))
+                               .subscribe(o -> _log(String.format(Locale.US,
+                                                                  "Executing polled task now time : [xx:%02d]",
+                                                                  _getSecondHand())),
+                                          e -> Timber.d(e, "arrrr. Error")));
     }
 
     // -----------------------------------------------------------------------------------
@@ -127,7 +124,8 @@ private String _doNetworkCallAndGetStringResult(long attempt) {
                 // randomly make one event super long so we test that the repeat logic waits
                 // and accounts for this.
                 Thread.sleep(9000);
-            } else {
+            }
+            else {
                 Thread.sleep(3000);
             }
 
@@ -153,7 +151,8 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (main thread) ");
             _adapter.clear();
             _adapter.addAll(_logs);
-        } else {
+        }
+        else {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
@@ -177,7 +176,7 @@ private boolean _isCurrentlyOnMainThread() {
 
     //public static class RepeatWithDelay
     public class RepeatWithDelay
-          implements Func1<Observable<? extends Void>, Observable<?>> {
+          implements Function<Flowable<Object>, Publisher<Long>> {
 
         private final int _repeatLimit;
         private final int _pollingInterval;
@@ -193,28 +192,24 @@ public class RepeatWithDelay
         // only onNext triggers a re-subscription
 
         @Override
-        public Observable<?> call(Observable<? extends Void> inputObservable) {
-
+        public Publisher<Long> apply(Flowable<Object> inputFlowable) throws Exception {
             // it is critical to use inputObservable in the chain for the result
             // ignoring it and doing your own thing will break the sequence
 
-            return inputObservable.flatMap(new Func1<Void, Observable<?>>() {
+            return inputFlowable.flatMap(new Function<Object, Publisher<Long>>() {
                 @Override
-                public Observable<?> call(Void blah) {
-
-
+                public Publisher<Long> apply(Object o) throws Exception {
                     if (_repeatCount >= _repeatLimit) {
                         // terminate the sequence cause we reached the limit
                         _log("Completing sequence");
-                        return Observable.empty();
+                        return Flowable.empty();
                     }
 
                     // since we don't get an input
                     // we store state in this handler to tell us the point of time we're firing
                     _repeatCount++;
 
-                    return Observable.timer(_repeatCount * _pollingInterval,
-                          TimeUnit.MILLISECONDS);
+                    return Flowable.timer(_repeatCount * _pollingInterval, TimeUnit.MILLISECONDS);
                 }
             });
         }

From 96aff2713f16e5b816e97dddfde8f1b807e742e1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 17:19:30 -0800
Subject: [PATCH 225/260] feat: port example Simple and Advanced exponential
 backoff (using delay and retryWhen)

---
 .../fragments/ExponentialBackoffFragment.java | 166 +++++++++---------
 1 file changed, 83 insertions(+), 83 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index 8d60342b..9b6de603 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -7,25 +7,24 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
+import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import io.reactivex.Flowable;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.functions.Function;
+import io.reactivex.subscribers.DisposableSubscriber;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscriber;
-import rx.functions.Func1;
+import org.reactivestreams.Publisher;
 import rx.observables.MathObservable;
-import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
+
 import static android.os.Looper.getMainLooper;
 
 public class ExponentialBackoffFragment
@@ -33,16 +32,9 @@ public class ExponentialBackoffFragment
 
     @Bind(R.id.list_threading_log) ListView _logList;
     private LogAdapter _adapter;
+    private CompositeDisposable _disposables = new CompositeDisposable();
     private List<String> _logs;
 
-    private CompositeSubscription _subscriptions = new CompositeSubscription();
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
@@ -52,11 +44,17 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @Override
     public void onPause() {
         super.onPause();
 
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     @Override
@@ -72,27 +70,30 @@ public void startRetryingWithExponentialBackoffStrategy() {
         _logs = new ArrayList<>();
         _adapter.clear();
 
-        _subscriptions.add(//
-              Observable//
-                    .error(new RuntimeException("testing")) // always fails
-                    .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext values sent are ignored)
-                    .doOnSubscribe(() -> _log("Attempting the impossible 5 times in intervals of 1s"))//
-                    .subscribe(new Observer<Object>() {
-                        @Override
-                        public void onCompleted() {
-                            Timber.d("on Completed");
-                        }
-
-                        @Override
-                        public void onError(Throwable e) {
-                            _log("Error: I give up!");
-                        }
-
-                        @Override
-                        public void onNext(Object aVoid) {
-                            Timber.d("on Next");
-                        }
-                    }));
+        DisposableSubscriber<Object> disposableSubscriber = new DisposableSubscriber<Object>() {
+            @Override
+            public void onNext(Object aVoid) {
+                Timber.d("on Next");
+            }
+
+            @Override
+            public void onComplete() {
+                Timber.d("on Completed");
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                _log("Error: I give up!");
+            }
+        };
+
+        Flowable.error(new RuntimeException("testing")) // always fails
+                .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext
+                // values sent are ignored)
+                .doOnSubscribe(subscription -> _log("Attempting the impossible 5 times in intervals of 1s"))
+                .subscribe(disposableSubscriber);
+
+        _disposables.add(disposableSubscriber);
     }
 
     @OnClick(R.id.btn_eb_delay)
@@ -101,41 +102,41 @@ public void startExecutingWithExponentialBackoffDelay() {
         _logs = new ArrayList<>();
         _adapter.clear();
 
-        _subscriptions.add(//
-
-              Observable.range(1, 4)//
-                    .delay(integer -> {
-                        // Rx-y way of doing the Fibonnaci :P
-                        return MathObservable//
-                              .sumInteger(Observable.range(1, integer))
-                              .flatMap(targetSecondDelay -> Observable.just(integer)
-                                    .delay(targetSecondDelay, TimeUnit.SECONDS));
-                    })//
-                    .doOnSubscribe(() ->
-                          _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
-                                _getSecondHand())))//
-                    .subscribe(new Subscriber<Integer>() {
-                        @Override
-                        public void onCompleted() {
-                            Timber.d("onCompleted");
-                            _log("Completed");
-                        }
-
-                        @Override
-                        public void onError(Throwable e) {
-                            Timber.d(e, "arrrr. Error");
-                            _log("Error");
-                        }
-
-                        @Override
-                        public void onNext(Integer integer) {
-                            Timber.d("executing Task %d [xx:%02d]", integer, _getSecondHand());
-                            _log(String.format("executing Task %d  [xx:%02d]",
-                                  integer,
-                                  _getSecondHand()));
-
-                        }
-                    }));
+        DisposableSubscriber<Integer> disposableSubscriber = new DisposableSubscriber<Integer>() {
+            @Override
+            public void onNext(Integer integer) {
+                Timber.d("executing Task %d [xx:%02d]", integer, _getSecondHand());
+                _log(String.format("executing Task %d  [xx:%02d]", integer, _getSecondHand()));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.d(e, "arrrr. Error");
+                _log("Error");
+            }
+
+            @Override
+            public void onComplete() {
+                Timber.d("onCompleted");
+                _log("Completed");
+            }
+        };
+
+        Flowable
+              .range(1, 4)
+              .delay(integer -> {
+                  // Rx-y way of doing the Fibonnaci :P
+                  return RxJavaInterop
+                        .toV2Flowable(MathObservable.sumInteger(rx.Observable.range(1, integer)))
+                        .flatMap(targetSecondDelay -> Flowable
+                              .just(integer)
+                              .delay(targetSecondDelay, TimeUnit.SECONDS));
+              })
+              .doOnSubscribe(s -> _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
+                                                     _getSecondHand())))
+              .subscribe(disposableSubscriber);
+
+        _disposables.add(disposableSubscriber);
     }
 
     // -----------------------------------------------------------------------------------
@@ -176,7 +177,7 @@ private void _log(String logMsg) {
 
     //public static class RetryWithDelay
     public class RetryWithDelay
-          implements Func1<Observable<? extends Throwable>, Observable<?>> {
+          implements Function<Flowable<? extends Throwable>, Publisher<?>> {
 
         private final int _maxRetries;
         private final int _retryDelayMillis;
@@ -193,14 +194,14 @@ public RetryWithDelay(final int maxRetries, final int retryDelayMillis) {
         // only onNext triggers a re-subscription (onError + onComplete kills it)
 
         @Override
-        public Observable<?> call(Observable<? extends Throwable> inputObservable) {
+        public Publisher<?> apply(Flowable<? extends Throwable> inputObservable) {
 
             // it is critical to use inputObservable in the chain for the result
             // ignoring it and doing your own thing will break the sequence
 
-            return inputObservable.flatMap(new Func1<Throwable, Observable<?>>() {
+            return inputObservable.flatMap(new Function<Throwable, Publisher<?>>() {
                 @Override
-                public Observable<?> call(Throwable throwable) {
+                public Publisher<?> apply(Throwable throwable) {
                     if (++_retryCount < _maxRetries) {
 
                         // When this Observable calls onNext, the original
@@ -209,15 +210,14 @@ public Observable<?> call(Throwable throwable) {
                         Timber.d("Retrying in %d ms", _retryCount * _retryDelayMillis);
                         _log(String.format("Retrying in %d ms", _retryCount * _retryDelayMillis));
 
-                        return Observable.timer(_retryCount * _retryDelayMillis,
-                              TimeUnit.MILLISECONDS);
+                        return Flowable.timer(_retryCount * _retryDelayMillis, TimeUnit.MILLISECONDS);
                     }
 
                     Timber.d("Argh! i give up");
 
                     // Max retries hit. Pass an error so the chain is forcibly completed
                     // only onNext triggers a re-subscription (onError + onComplete kills it)
-                    return Observable.error(throwable);
+                    return Flowable.error(throwable);
                 }
             });
         }

From d83a66659511df8d977db6f11c4cac3b01707397 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 17:32:32 -0800
Subject: [PATCH 226/260] feat: port timeout + playground

* port example Timeout
* port PlaygroundFragment
---
 .../android/rxjava/MainActivity.java          |  41 ++++---
 .../com/morihacky/android/rxjava/RxUtils.java |  12 --
 .../rxjava/fragments/PlaygroundFragment.java  |  83 ++++++-------
 .../rxjava/fragments/TimeoutDemoFragment.java | 116 +++++++++---------
 4 files changed, 119 insertions(+), 133 deletions(-)
 delete mode 100644 app/src/main/java/com/morihacky/android/rxjava/RxUtils.java

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 41bc79ae..644ad777 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -3,9 +3,9 @@
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
-import com.morihacky.android.rxjava.fragments.MainFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist1WorkerFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist2WorkerFragment;
+import com.morihacky.android.rxjava.fragments.TimeoutDemoFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
 public class MainActivity
@@ -13,15 +13,6 @@ public class MainActivity
 
     private RxBus _rxBus = null;
 
-    // This is better done with a DI Library like Dagger
-    public RxBus getRxBusSingleton() {
-        if (_rxBus == null) {
-            _rxBus = new RxBus();
-        }
-
-        return _rxBus;
-    }
-
     @Override
     public void onBackPressed() {
         super.onBackPressed();
@@ -34,24 +25,38 @@ protected void onCreate(Bundle savedInstanceState) {
 
         if (savedInstanceState == null) {
             getSupportFragmentManager().beginTransaction()
-                  .replace(android.R.id.content, new MainFragment(), this.toString())
-                  .commit();
+                                       //.replace(android.R.id.content, new MainFragment(), this.toString())
+                                       .replace(android.R.id.content, new TimeoutDemoFragment(), this.toString())
+                                       .commit();
         }
     }
 
+    // This is better done with a DI Library like Dagger
+    public RxBus getRxBusSingleton() {
+        if (_rxBus == null) {
+            _rxBus = new RxBus();
+        }
+
+        return _rxBus;
+    }
+
     private void _removeWorkerFragments() {
-        Fragment frag = getSupportFragmentManager()//
-              .findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
+        Fragment frag = getSupportFragmentManager().findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
 
         if (frag != null) {
-            getSupportFragmentManager().beginTransaction().remove(frag).commit();
+            getSupportFragmentManager()
+                  .beginTransaction()
+                  .remove(frag)
+                  .commit();
         }
 
-        frag = getSupportFragmentManager()//
-              .findFragmentByTag(RotationPersist2WorkerFragment.class.getName());
+        frag = getSupportFragmentManager().findFragmentByTag(RotationPersist2WorkerFragment.class.getName());
 
         if (frag != null) {
-            getSupportFragmentManager().beginTransaction().remove(frag).commit();
+            getSupportFragmentManager()
+                  .beginTransaction()
+                  .remove(frag)
+                  .commit();
         }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java b/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
deleted file mode 100644
index c32d0537..00000000
--- a/app/src/main/java/com/morihacky/android/rxjava/RxUtils.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.morihacky.android.rxjava;
-
-import rx.Subscription;
-
-public class RxUtils {
-
-    public static void unsubscribeIfNotNull(Subscription subscription) {
-        if (subscription != null) {
-            subscription.unsubscribe();
-        }
-    }
-}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
index 730b3e01..8ceebd85 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
@@ -11,20 +11,15 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
 import rx.Observable;
-import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 import timber.log.Timber;
@@ -36,21 +31,13 @@ public class PlaygroundFragment
     @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
-    private List<String> _logs;
-    private Subscription _subscription;
     private int _attempt = 0;
+    private List<String> _logs;
 
     @Override
     public void onDestroy() {
         super.onDestroy();
         ButterKnife.unbind(this);
-        RxUtils.unsubscribeIfNotNull(_subscription);
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
     }
 
     @Override
@@ -62,41 +49,42 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @OnClick(R.id.btn_start_operation)
     public void startOperation() {
 
         _logs.clear();
         _log("Button Clicked");
 
-        _subscription =//
-              Observable//
-                    .from(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"))//
-//                    .from(Arrays.asList("a", "b", "c", "d"))//
-                    .flatMap(s ->//
-                                Observable//
-                                      .just(s)//
-                                      .onBackpressureBuffer(3)
-                                      .flatMap(s1 -> {
-
-                                          _log(s1 + "start");
-
-                                          if (s1.equalsIgnoreCase("b") && _attempt < 5) {
-                                              _attempt++;
-                                              return Observable.error(new Throwable("b can't be processed ("+(_attempt - 1)+")"));
-                                          }
-
-                                          if (s1.equalsIgnoreCase("c") || s1.equalsIgnoreCase("f")) {
-                                              return Observable.just(s1);
-                                          } else {
-                                              return Observable.timer(2, TimeUnit.SECONDS).map(l -> s1);
-                                          }
-                                      })
-                                      .retryWhen(source -> source.delay(8, TimeUnit.SECONDS))
-                          /*, 3*/)
-                    .doOnNext(s -> _log(s + "stop"))
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe();
+        Observable.from(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"))//
+                  .flatMap(s1 -> {
+
+                      _log(s1 + "start");
+
+                      if (s1.equalsIgnoreCase("b") && _attempt < 5) {
+                          _attempt++;
+                          return Observable.error(new Throwable("b can't be processed (" + (_attempt - 1) + ")"));
+                      }
+
+                      if (s1.equalsIgnoreCase("c") || s1.equalsIgnoreCase("f")) {
+                          return Observable.just(s1);
+                      }
+                      else {
+                          return Observable
+                                .timer(2, TimeUnit.SECONDS)
+                                .map(l -> s1);
+                      }
+                  })
+                  .retryWhen(source -> source.delay(8, TimeUnit.SECONDS))
+                  .doOnNext(s -> _log(s + "stop"))
+                  .subscribeOn(Schedulers.io())
+                  .observeOn(AndroidSchedulers.mainThread())
+                  .subscribe();
     }
 
     // -----------------------------------------------------------------------------------
@@ -118,7 +106,8 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (main thread) ");
             _adapter.clear();
             _adapter.addAll(_logs);
-        } else {
+        }
+        else {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index 03e86031..b45f02cb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -8,24 +8,20 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
-import com.morihacky.android.rxjava.RxUtils;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
+import io.reactivex.Observable;
+import io.reactivex.ObservableEmitter;
+import io.reactivex.ObservableOnSubscribe;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.observers.DisposableObserver;
+import io.reactivex.schedulers.Schedulers;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscriber;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
 public class TimeoutDemoFragment
@@ -34,20 +30,18 @@ public class TimeoutDemoFragment
     @Bind(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
+    private DisposableObserver<String> _disposable;
     private List<String> _logs;
 
-    private Subscription _subscription;
-
     @Override
     public void onDestroy() {
         super.onDestroy();
-        RxUtils.unsubscribeIfNotNull(_subscription);
-    }
 
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
+        if (_disposable == null) {
+            return;
+        }
+
+        _disposable.dispose();
     }
 
     @Override
@@ -59,30 +53,39 @@ public View onCreateView(LayoutInflater inflater,
         return layout;
     }
 
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        _setupLogger();
+    }
+
     @OnClick(R.id.btn_demo_timeout_1_2s)
     public void onStart2sTask() {
-        _subscription = _getObservableTask_2sToComplete()//
-              .observeOn(AndroidSchedulers.mainThread())//
-              .subscribe(_getEventCompletionObserver());
+        _disposable = _getEventCompletionObserver();
+
+        _getObservableTask_2sToComplete()
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(_disposable);
     }
 
     @OnClick(R.id.btn_demo_timeout_1_5s)
     public void onStart5sTask() {
-        _subscription = _getObservableFor5sTask()//
+        _disposable = _getEventCompletionObserver();
+
+        _getObservableFor5sTask()
               .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
               .subscribeOn(Schedulers.computation())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(_getEventCompletionObserver());
+              .subscribe(_disposable);
     }
 
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
     private Observable<String> _getObservableFor5sTask() {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
+        return Observable.create(new ObservableOnSubscribe<String>() {
             @Override
-            public void call(Subscriber<? super String> subscriber) {
+            public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
                 _log(String.format("Starting a 5s task"));
                 subscriber.onNext("5 s");
                 try {
@@ -90,57 +93,57 @@ public void call(Subscriber<? super String> subscriber) {
                 } catch (InterruptedException e) {
                     e.printStackTrace();
                 }
-                subscriber.onCompleted();
+                subscriber.onComplete();
             }
         });
     }
 
     private Observable<String> _getObservableTask_2sToComplete() {
-        return Observable.create(new Observable.OnSubscribe<String>() {
-
-            @Override
-            public void call(Subscriber<? super String> subscriber) {
-                _log(String.format("Starting a 2s task"));
-                subscriber.onNext("2 s");
-                try {
-                    Thread.sleep(2000);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-                subscriber.onCompleted();
-            }
-        }).subscribeOn(Schedulers.computation()).timeout(3, TimeUnit.SECONDS);
+        return Observable
+              .create(new ObservableOnSubscribe<String>() {
+                  @Override
+                  public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
+                      _log(String.format("Starting a 2s task"));
+                      subscriber.onNext("2 s");
+                      try {
+                          Thread.sleep(2000);
+                      } catch (InterruptedException e) {
+                          e.printStackTrace();
+                      }
+                      subscriber.onComplete();
+                  }
+              })
+              .subscribeOn(Schedulers.computation())
+              .timeout(3, TimeUnit.SECONDS);
     }
 
     private Observable<? extends String> _getTimeoutObservable() {
-        return Observable.create(new Observable.OnSubscribe<String>() {
+        return Observable.create(new ObservableOnSubscribe<String>() {
 
             @Override
-            public void call(Subscriber<? super String> subscriber) {
+            public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
                 _log("Timing out this task ...");
-                subscriber.onCompleted();
+                subscriber.onComplete();
             }
         });
     }
 
-    private Observer<String> _getEventCompletionObserver() {
-        return new Observer<String>() {
-
+    private DisposableObserver<String> _getEventCompletionObserver() {
+        return new DisposableObserver<String>() {
             @Override
-            public void onCompleted() {
-                _log(String.format("task was completed"));
+            public void onNext(String taskType) {
+                _log(String.format("onNext %s task", taskType));
             }
 
             @Override
             public void onError(Throwable e) {
                 _log(String.format("Dang a task timeout"));
-                onCompleted();
                 Timber.e(e, "Timeout Demo exception");
             }
 
             @Override
-            public void onNext(String taskType) {
-                _log(String.format("onNext %s task", taskType));
+            public void onComplete() {
+                _log(String.format("task was completed"));
             }
         };
     }
@@ -160,7 +163,8 @@ private void _log(String logMsg) {
             _logs.add(0, logMsg + " (main thread) ");
             _adapter.clear();
             _adapter.addAll(_logs);
-        } else {
+        }
+        else {
             _logs.add(0, logMsg + " (NOT main thread) ");
 
             // You can only do below stuff on main thread.

From 59b81952093343c30be12100d3aca0bb8efe64d2 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 17:44:45 -0800
Subject: [PATCH 227/260] feat: port example Form validation (using
 combineLatest)

---
 .../android/rxjava/MainActivity.java          |   5 +-
 .../FormValidationCombineLatestFragment.java  | 142 +++++++++---------
 2 files changed, 77 insertions(+), 70 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 644ad777..59715261 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -3,9 +3,9 @@
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
+import com.morihacky.android.rxjava.fragments.MainFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist1WorkerFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist2WorkerFragment;
-import com.morihacky.android.rxjava.fragments.TimeoutDemoFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
 public class MainActivity
@@ -25,8 +25,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         if (savedInstanceState == null) {
             getSupportFragmentManager().beginTransaction()
-                                       //.replace(android.R.id.content, new MainFragment(), this.toString())
-                                       .replace(android.R.id.content, new TimeoutDemoFragment(), this.toString())
+                                       .replace(android.R.id.content, new MainFragment(), this.toString())
                                        .commit();
         }
     }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 1a3157bf..3a985fcc 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -7,17 +7,16 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-
-import com.jakewharton.rxbinding.widget.RxTextView;
-import com.morihacky.android.rxjava.R;
-
 import butterknife.Bind;
 import butterknife.ButterKnife;
-import rx.Observable;
-import rx.Observer;
-import rx.Subscription;
+import com.jakewharton.rxbinding.widget.RxTextView;
+import com.morihacky.android.rxjava.R;
+import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import io.reactivex.Flowable;
+import io.reactivex.subscribers.DisposableSubscriber;
 import timber.log.Timber;
 
+
 import static android.text.TextUtils.isEmpty;
 import static android.util.Patterns.EMAIL_ADDRESS;
 
@@ -29,24 +28,27 @@ public class FormValidationCombineLatestFragment
     @Bind(R.id.demo_combl_password) EditText _password;
     @Bind(R.id.demo_combl_num) EditText _number;
 
-    private Observable<CharSequence> _emailChangeObservable;
-    private Observable<CharSequence> _passwordChangeObservable;
-    private Observable<CharSequence> _numberChangeObservable;
-
-    private Subscription _subscription = null;
+    private DisposableSubscriber<Boolean> _disposableObserver = null;
+    private Flowable<CharSequence> _emailChangeObservable;
+    private Flowable<CharSequence> _numberChangeObservable;
+    private Flowable<CharSequence> _passwordChangeObservable;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest,
-              container,
-              false);
+        View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
         ButterKnife.bind(this, layout);
 
-        _emailChangeObservable = RxTextView.textChanges(_email).skip(1);
-        _passwordChangeObservable = RxTextView.textChanges(_password).skip(1);
-        _numberChangeObservable = RxTextView.textChanges(_number).skip(1);
+        _emailChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
+                                                                  .textChanges(_email)
+                                                                  .skip(1));
+        _passwordChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
+                                                                     .textChanges(_password)
+                                                                     .skip(1));
+        _numberChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
+                                                                   .textChanges(_number)
+                                                                   .skip(1));
 
         _combineLatestEvents();
 
@@ -57,57 +59,63 @@ public View onCreateView(LayoutInflater inflater,
     public void onDestroyView() {
         super.onDestroyView();
         ButterKnife.unbind(this);
-        _subscription.unsubscribe();
+        _disposableObserver.dispose();
     }
 
     private void _combineLatestEvents() {
-        _subscription = Observable.combineLatest(_emailChangeObservable,
-              _passwordChangeObservable,
-              _numberChangeObservable,
-              (newEmail, newPassword, newNumber) -> {
-
-                  boolean emailValid = !isEmpty(newEmail) &&
-                                       EMAIL_ADDRESS.matcher(newEmail).matches();
-                  if (!emailValid) {
-                      _email.setError("Invalid Email!");
-                  }
-
-                  boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
-                  if (!passValid) {
-                      _password.setError("Invalid Password!");
-                  }
-
-                  boolean numValid = !isEmpty(newNumber);
-                  if (numValid) {
-                      int num = Integer.parseInt(newNumber.toString());
-                      numValid = num > 0 && num <= 100;
-                  }
-                  if (!numValid) {
-                      _number.setError("Invalid Number!");
-                  }
-
-                  return emailValid && passValid && numValid;
-
-              })//
-              .subscribe(new Observer<Boolean>() {
-                  @Override
-                  public void onCompleted() {
-                      Timber.d("completed");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "there was an error");
-                  }
-
-                  @Override
-                  public void onNext(Boolean formValid) {
-                      if (formValid) {
-                          _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
-                      } else {
-                          _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
-                      }
-                  }
-              });
+
+        _disposableObserver = new DisposableSubscriber<Boolean>() {
+            @Override
+            public void onNext(Boolean formValid) {
+                if (formValid) {
+                    _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
+                }
+                else {
+                    _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
+                }
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "there was an error");
+            }
+
+            @Override
+            public void onComplete() {
+                Timber.d("completed");
+            }
+        };
+
+        Flowable
+              .combineLatest(_emailChangeObservable,
+                             _passwordChangeObservable,
+                             _numberChangeObservable,
+                             (newEmail, newPassword, newNumber) -> {
+
+                                 boolean emailValid = !isEmpty(newEmail) &&
+                                                      EMAIL_ADDRESS
+                                                            .matcher(newEmail)
+                                                            .matches();
+                                 if (!emailValid) {
+                                     _email.setError("Invalid Email!");
+                                 }
+
+                                 boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
+                                 if (!passValid) {
+                                     _password.setError("Invalid Password!");
+                                 }
+
+                                 boolean numValid = !isEmpty(newNumber);
+                                 if (numValid) {
+                                     int num = Integer.parseInt(newNumber.toString());
+                                     numValid = num > 0 && num <= 100;
+                                 }
+                                 if (!numValid) {
+                                     _number.setError("Invalid Number!");
+                                 }
+
+                                 return emailValid && passValid && numValid;
+                             })
+              .subscribe(_disposableObserver);
     }
 }

From 897ea7345940cbc72ee7758152dc89bce6e3d718 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 20:21:25 -0800
Subject: [PATCH 228/260] feat: port Activity rotation examples

* port example Persist data on Activity rotations (using Subjects and
retained Fragments)
*  port example Persist data on Activity rotations (using Subjects and
retained Fragments) old variant

we no longer have a subscription coming out, so use another subject
---
 .../fragments/RotationPersist1Fragment.java   | 76 +++++++++---------
 .../RotationPersist1WorkerFragment.java       | 57 ++++++-------
 .../fragments/RotationPersist2Fragment.java   | 79 ++++++++++---------
 .../RotationPersist2WorkerFragment.java       | 56 +++++++------
 4 files changed, 132 insertions(+), 136 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index dd48d1b8..ec990a13 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -8,22 +8,19 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
+import io.reactivex.Flowable;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.subscribers.DisposableSubscriber;
 import java.util.ArrayList;
 import java.util.List;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observer;
-import rx.functions.Action0;
-import rx.observables.ConnectableObservable;
-import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
+
 import static android.os.Looper.getMainLooper;
 
 public class RotationPersist1Fragment
@@ -37,7 +34,7 @@ public class RotationPersist1Fragment
     private LogAdapter _adapter;
     private List<String> _logs;
 
-    private CompositeSubscription _subscriptions = new CompositeSubscription();
+    private CompositeDisposable _disposables = new CompositeDisposable();
 
     // -----------------------------------------------------------------------------------
 
@@ -47,7 +44,7 @@ public void startOperationFromWorkerFrag() {
         _adapter.clear();
 
         FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersist1WorkerFragment frag =//
+        RotationPersist1WorkerFragment frag =
               (RotationPersist1WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
 
         if (frag == null) {
@@ -59,32 +56,33 @@ public void startOperationFromWorkerFrag() {
     }
 
     @Override
-    public void observeResults(ConnectableObservable<Integer> intsObservable) {
-
-        _subscriptions.add(//
-              intsObservable.doOnSubscribe(new Action0() {
-                  @Override
-                  public void call() {
-                      _log("Subscribing to intsObservable");
-                  }
-              }).subscribe(new Observer<Integer>() {
-                  @Override
-                  public void onCompleted() {
-                      _log("Observable is complete");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "Error in worker demo frag observable");
-                      _log("Dang! something went wrong.");
-                  }
-
-                  @Override
-                  public void onNext(Integer integer) {
-                      _log(String.format("Worker frag spits out - %d", integer));
-                  }
-              }));
-
+    public void observeResults(Flowable<Integer> intsFlowable) {
+
+        DisposableSubscriber<Integer> d = new DisposableSubscriber<Integer>() {
+            @Override
+            public void onNext(Integer integer) {
+                _log(String.format("Worker frag spits out - %d", integer));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "Error in worker demo frag observable");
+                _log("Dang! something went wrong.");
+            }
+
+            @Override
+            public void onComplete() {
+                _log("Observable is complete");
+            }
+        };
+
+        intsFlowable
+              .doOnSubscribe(subscription -> {
+                  _log("Subscribing to intsObservable");
+              })
+              .subscribe(d);
+
+        _disposables.add(d);
     }
 
     // -----------------------------------------------------------------------------------
@@ -109,7 +107,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
index 2d3ad1b0..34b479fa 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
@@ -3,22 +3,19 @@
 import android.content.Context;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
-
 import com.morihacky.android.rxjava.MainActivity;
-
+import io.reactivex.Flowable;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.flowables.ConnectableFlowable;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-import rx.Observable;
-import rx.Subscription;
-import rx.observables.ConnectableObservable;
-
 public class RotationPersist1WorkerFragment
       extends Fragment {
 
     private IAmYourMaster _masterFrag;
-    private ConnectableObservable<Integer> _storedIntsObservable;
-    private Subscription _storedIntsSubscription;
+    private ConnectableFlowable<Integer> _storedIntsFlowable;
+    private Disposable _storedIntsDisposable;
 
     /**
      * Hold a reference to the activity -> caller fragment
@@ -29,7 +26,9 @@ public class RotationPersist1WorkerFragment
     public void onAttach(Context context) {
         super.onAttach(context);
 
-        List<Fragment> frags = ((MainActivity) context).getSupportFragmentManager().getFragments();
+        List<Fragment> frags = ((MainActivity) context)
+              .getSupportFragmentManager()
+              .getFragments();
         for (Fragment f : frags) {
             if (f instanceof IAmYourMaster) {
                 _masterFrag = (IAmYourMaster) f;
@@ -51,27 +50,17 @@ public void onCreate(Bundle savedInstanceState) {
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-        if (_storedIntsObservable != null) {
+        if (_storedIntsFlowable != null) {
             return;
         }
 
-        Observable<Integer> intsObservable =//
-              Observable.interval(1, TimeUnit.SECONDS)//
-                    .map(Long::intValue)//
-                    .take(20);
-
-        // -----------------------------------------------------------------------------------
-        // Making our observable "HOT" for the purpose of the demo.
+        Flowable<Integer> intsObservable = Flowable
+              .interval(1, TimeUnit.SECONDS)
+              .map(Long::intValue)
+              .take(20);
 
-        //_intsObservable = _intsObservable.share();
-        _storedIntsObservable = intsObservable.replay();
-
-        _storedIntsSubscription = _storedIntsObservable.connect();
-
-        // Do not do this in production!
-        // `.share` is "warm" not "hot"
-        // the below forceful subscription fakes the heat
-        //_intsObservable.subscribe();
+        _storedIntsFlowable = intsObservable.publish();
+        _storedIntsDisposable = _storedIntsFlowable.connect();
     }
 
     /**
@@ -80,7 +69,13 @@ public void onCreate(Bundle savedInstanceState) {
     @Override
     public void onResume() {
         super.onResume();
-        _masterFrag.observeResults(_storedIntsObservable);
+        _masterFrag.observeResults(_storedIntsFlowable);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _storedIntsDisposable.dispose();
     }
 
     /**
@@ -93,13 +88,7 @@ public void onDetach() {
         _masterFrag = null;
     }
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _storedIntsSubscription.unsubscribe();
-    }
-
     public interface IAmYourMaster {
-        void observeResults(ConnectableObservable<Integer> intsObservable);
+        void observeResults(Flowable<Integer> intsObservable);
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index ebbd88fc..cdf5d244 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -8,21 +8,19 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
+import io.reactivex.Flowable;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.subscribers.DisposableSubscriber;
 import java.util.ArrayList;
 import java.util.List;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.subscriptions.CompositeSubscription;
 import timber.log.Timber;
 
+
 import static android.os.Looper.getMainLooper;
 
 public class RotationPersist2Fragment
@@ -36,7 +34,7 @@ public class RotationPersist2Fragment
     private LogAdapter _adapter;
     private List<String> _logs;
 
-    private CompositeSubscription _subscriptions = new CompositeSubscription();
+    private CompositeDisposable _disposables = new CompositeDisposable();
 
     // -----------------------------------------------------------------------------------
 
@@ -46,42 +44,49 @@ public void startOperationFromWorkerFrag() {
         _adapter.clear();
 
         FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersist2WorkerFragment frag =//
-              (RotationPersist2WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+        RotationPersist2WorkerFragment frag = (RotationPersist2WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
 
         if (frag == null) {
             frag = new RotationPersist2WorkerFragment();
-            fm.beginTransaction().add(frag, FRAG_TAG).commit();
-        } else {
+            fm
+                  .beginTransaction()
+                  .add(frag, FRAG_TAG)
+                  .commit();
+        }
+        else {
             Timber.d("Worker frag already spawned");
         }
     }
 
     @Override
-    public void setStream(Observable<Integer> intStream) {
-
-        _subscriptions.add(//
-              intStream.doOnSubscribe(() -> _log("Subscribing to intsObservable"))
-                    .subscribe(new Observer<Integer>() {
-                        @Override
-                        public void onCompleted() {
-                            _log("Observable is complete");
-                        }
-
-                        @Override
-                        public void onError(Throwable e) {
-                            Timber.e(e, "Error in worker demo frag observable");
-                            _log("Dang! something went wrong.");
-                        }
-
-                        @Override
-                        public void onNext(Integer integer) {
-                            _log(String.format("Worker frag spits out - %d", integer));
-                        }
-                    }));
+    public void setStream(Flowable<Integer> intStream) {
+        DisposableSubscriber<Integer> d = new DisposableSubscriber<Integer>() {
+            @Override
+            public void onNext(Integer integer) {
+                _log(String.format("Worker frag spits out - %d", integer));
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                Timber.e(e, "Error in worker demo frag observable");
+                _log("Dang! something went wrong.");
+            }
+
+            @Override
+            public void onComplete() {
+                _log("Observable is complete");
+            }
+        };
+
+        intStream
+              .doOnSubscribe(subscription -> _log("Subscribing to intsObservable"))
+              .subscribe(d);
+
+        _disposables.add(d);
+
     }
 
-    // -----------------------------------------------------------------------------------
+// -----------------------------------------------------------------------------------
     // Boilerplate
     // -----------------------------------------------------------------------------------
 
@@ -103,7 +108,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onPause() {
         super.onPause();
-        _subscriptions.clear();
+        _disposables.clear();
     }
 
     private void _setupLogger() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
index 9b82f881..353a8faa 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
@@ -1,25 +1,21 @@
 package com.morihacky.android.rxjava.fragments;
 
-import android.app.Activity;
+import android.content.Context;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
-
 import com.morihacky.android.rxjava.MainActivity;
-
+import io.reactivex.Flowable;
+import io.reactivex.processors.PublishProcessor;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-import rx.Observable;
-import rx.Subscription;
-import rx.subjects.PublishSubject;
-import rx.subjects.Subject;
-
 public class RotationPersist2WorkerFragment
       extends Fragment {
 
+    private PublishProcessor<Integer> _intStream;
+    private PublishProcessor<Boolean> _lifeCycleStream;
+
     private IAmYourMaster _masterFrag;
-    private Subscription _storedIntsSubscription;
-    private Subject<Integer, Integer> _intStream = PublishSubject.create();
 
     /**
      * Since we're holding a reference to the Master a.k.a Activity/Master Frag
@@ -28,10 +24,12 @@ public class RotationPersist2WorkerFragment
      * See {@link MainActivity#onBackPressed()}
      */
     @Override
-    public void onAttach(Activity activity) {
-        super.onAttach(activity);
+    public void onAttach(Context context) {
+        super.onAttach(context);
 
-        List<Fragment> frags = ((MainActivity) activity).getSupportFragmentManager().getFragments();
+        List<Fragment> frags = ((MainActivity) context)
+              .getSupportFragmentManager()
+              .getFragments();
         for (Fragment f : frags) {
             if (f instanceof IAmYourMaster) {
                 _masterFrag = (IAmYourMaster) f;
@@ -50,14 +48,20 @@ public void onAttach(Activity activity) {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        _intStream = PublishProcessor.create();
+        _lifeCycleStream = PublishProcessor.create();
+
         // Retain this fragment across configuration changes.
         setRetainInstance(true);
 
-        _storedIntsSubscription =
-              Observable.interval(1, TimeUnit.SECONDS)
-                    .map(Long::intValue)
-                    .take(20)
-                    .subscribe(_intStream);
+        _intStream.takeUntil(_lifeCycleStream);
+
+        Flowable
+              .interval(1, TimeUnit.SECONDS)
+              .map(Long::intValue)
+              .take(20)
+              .subscribe(_intStream);
+
     }
 
     /**
@@ -66,7 +70,13 @@ public void onCreate(Bundle savedInstanceState) {
     @Override
     public void onResume() {
         super.onResume();
-        _masterFrag.setStream(_intStream.asObservable());
+        _masterFrag.setStream(_intStream);
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        _lifeCycleStream.onComplete();
     }
 
     /**
@@ -79,13 +89,7 @@ public void onDetach() {
         _masterFrag = null;
     }
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _storedIntsSubscription.unsubscribe();
-    }
-
     public interface IAmYourMaster {
-        void setStream(Observable<Integer> intStream);
+        void setStream(Flowable<Integer> intStream);
     }
 }

From 23f1fbf7aa4f3a46ddb84fc3a6886208bc6725b8 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 20:24:21 -0800
Subject: [PATCH 229/260] feat: port volley example

 port example Networking with Volley
---
 .../android/rxjava/volley/MyVolley.java       |  4 +-
 .../rxjava/volley/VolleyDemoFragment.java     | 96 ++++++++++---------
 2 files changed, 50 insertions(+), 50 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java b/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
index d67b9433..835a0287 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
@@ -6,8 +6,6 @@
 
 /**
  * Helper class that is used to provide references to initialized RequestQueue(s) and ImageLoader(s)
- *
- * @author Ognyan Bankov
  */
 public class MyVolley {
     private static RequestQueue mRequestQueue;
@@ -20,7 +18,7 @@ public static void init(Context context) {
         mRequestQueue = Volley.newRequestQueue(context);
     }
 
-    public static RequestQueue getRequestQueue() {
+    static RequestQueue getRequestQueue() {
         if (mRequestQueue != null) {
             return mRequestQueue;
         } else {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index 57dda54d..c357e536 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -9,7 +9,9 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
 import com.android.volley.Request;
 import com.android.volley.VolleyError;
 import com.android.volley.toolbox.JsonObjectRequest;
@@ -17,22 +19,16 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
-import org.json.JSONObject;
-
+import io.reactivex.Flowable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.schedulers.Schedulers;
+import io.reactivex.subscribers.DisposableSubscriber;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
-
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import rx.Observable;
-import rx.Observer;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
-import rx.subscriptions.CompositeSubscription;
+import org.json.JSONObject;
 import timber.log.Timber;
 
 public class VolleyDemoFragment
@@ -45,7 +41,7 @@ public class VolleyDemoFragment
     private List<String> _logs;
     private LogAdapter _adapter;
 
-    private CompositeSubscription _compositeSubscription = new CompositeSubscription();
+    private CompositeDisposable _disposables = new CompositeDisposable();
 
     @Override
     public View onCreateView(LayoutInflater inflater,
@@ -65,7 +61,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     @Override
     public void onPause() {
         super.onPause();
-        _compositeSubscription.clear();
+        _disposables.clear();
     }
 
     @Override
@@ -75,18 +71,18 @@ public void onDestroyView() {
     }
 
     /**
-     * Creates and returns an observable generated from the Future returned from 
+     * Creates and returns an observable generated from the Future returned from
      * {@code getRouteData()}. The observable can then be subscribed to as shown in
      * {@code startVolleyRequest()}
      * @return Observable<JSONObject>
      */
-    public Observable<JSONObject> newGetRouteData() {
-        return Observable.defer(() -> {
+    public Flowable<JSONObject> newGetRouteData() {
+        return Flowable.defer(() -> {
             try {
-                return Observable.just(getRouteData());
+                return Flowable.just(getRouteData());
             } catch (InterruptedException | ExecutionException e) {
                 Log.e("routes", e.getMessage());
-                return Observable.error(e);
+                return Flowable.error(e);
             }
         });
     }
@@ -97,38 +93,44 @@ void startRequest() {
     }
 
     private void startVolleyRequest() {
-        _compositeSubscription.add(newGetRouteData().subscribeOn(Schedulers.io())
+        DisposableSubscriber<JSONObject> d = new DisposableSubscriber<JSONObject>() {
+            @Override
+            public void onNext(JSONObject jsonObject) {
+                Log.e(TAG, "onNext " + jsonObject.toString());
+                _log("onNext " + jsonObject.toString());
+
+            }
+
+            @Override
+            public void onError(Throwable e) {
+                VolleyError cause = (VolleyError) e.getCause();
+                String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
+                Log.e(TAG, s);
+                Log.e(TAG, cause.toString());
+                _log("onError " + s);
+
+            }
+
+            @Override
+            public void onComplete() {
+                Log.e(TAG, "onCompleted");
+                Timber.d("----- onCompleted");
+                _log("onCompleted ");
+            }
+        };
+
+        newGetRouteData()
+              .subscribeOn(Schedulers.io())
               .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new Observer<JSONObject>() {
-                  @Override
-                  public void onCompleted() {
-                      Log.e(TAG, "onCompleted");
-                      Timber.d("----- onCompleted");
-                      _log("onCompleted ");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      VolleyError cause = (VolleyError) e.getCause();
-                      String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
-                      Log.e(TAG, s);
-                      Log.e(TAG, cause.toString());
-                      _log("onError " + s);
-
-                  }
-
-                  @Override
-                  public void onNext(JSONObject jsonObject) {
-                      Log.e(TAG, "onNext " + jsonObject.toString());
-                      _log("onNext " + jsonObject.toString());
-
-                  }
-              }));
+              .subscribe(d);
+
+        _disposables.add(d);
     }
+
     /**
      * Converts the Asynchronous Request into a Synchronous Future that can be used to
      * block via {@code Future.get()}. Observables require blocking/synchronous functions
-     * @return JSONObject 
+     * @return JSONObject
      * @throws ExecutionException
      * @throws InterruptedException
      */

From 9a5f53b73b4aa57295bf6d221b8879ea609c9126 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 20:32:08 -0800
Subject: [PATCH 230/260] feat: remove direct Rx 1.X dependencies

---
 app/build.gradle                                          | 6 +++---
 .../android/rxjava/fragments/PlaygroundFragment.java      | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index fc42adfc..9d4306aa 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -38,14 +38,13 @@ dependencies {
     compile "com.squareup.okhttp3:okhttp-urlconnection:${okhttpVersion}"
     compile 'com.mcxiaoke.volley:library:1.0.19'
 
-    // ----------- Rx dependencies
+    // ----------------------------------
+    //  Rx dependencies
 
-    compile 'io.reactivex:rxjava:1.1.4'
     compile 'io.reactivex.rxjava2:rxjava:2.0.1'
 
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
-    compile 'io.reactivex:rxandroid:1.2.0'
     compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
     // libs like rxbinding + rxjava-math haven't been ported to RxJava 2.x yet, so this helps
@@ -56,6 +55,7 @@ dependencies {
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
     compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
 
+    // ----------------------------------
 
     debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
     releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
index 8ceebd85..21f61fe5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
@@ -15,13 +15,13 @@
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
+import io.reactivex.Observable;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.schedulers.Schedulers;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
-import rx.Observable;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
 import timber.log.Timber;
 
 public class PlaygroundFragment
@@ -61,7 +61,7 @@ public void startOperation() {
         _logs.clear();
         _log("Button Clicked");
 
-        Observable.from(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"))//
+        Observable.fromIterable(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"))//
                   .flatMap(s1 -> {
 
                       _log(s1 + "start");

From 41516468d8ccf9f87f3bba6adb9858c9c4e0b941 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 20:45:05 -0800
Subject: [PATCH 231/260] feat:  add Timeout example to README

---
 README.md                                     |  7 +++++++
 .../rxjava/fragments/MainFragment.java        |  5 +++++
 .../rxjava/fragments/TimeoutDemoFragment.java | 20 +++++++++----------
 app/src/main/res/layout/fragment_main.xml     |  7 +++++++
 app/src/main/res/values/strings.xml           |  2 +-
 5 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index 6fa4e271..2436efdd 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ I've also been giving talks about Learning Rx using many of the examples listed
 13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
 14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
 15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
+16. [Simple Timeout example (using timeout)]()
 
 ## Description
 
@@ -215,6 +216,12 @@ The below ascii diagram expresses the intention of our next example with panache
 
 The code for this example has already been written by one Mr.skehlet in the interwebs. Head over to [the gist](https://gist.github.com/skehlet/9418379) for the code. It's written in pure Java (6) so it's pretty comprehensible if you've understood the previous examples. I'll flush it out here again when time permits or I've run out of other compelling examples.
 
+### 16. Simple Timeout example (using timeout)
+
+This is a simple example demonstrating the use of the `.timeout` operator. Button 1 will complete the task before the timeout constraint, while Button 2 will force a timeout error.
+
+Notice how we can provide a custom Observable that indicates how to react under a timeout Exception.
+
 ## Work in Progress:
 
 _Examples that I would like to have here, but haven't found the time yet to flush out_
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 02ed2046..07b974a2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -82,6 +82,11 @@ void demoTimerIntervalDelays() {
         clickedOn(new TimingDemoFragment());
     }
 
+    @OnClick(R.id.btn_demo_timeout)
+    void demoTimeout() {
+        clickedOn(new TimeoutDemoFragment());
+    }
+
     @OnClick(R.id.btn_demo_exponential_backoff)
     void demoExponentialBackoff() {
         clickedOn(new ExponentialBackoffFragment());
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index b45f02cb..d70dd669 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -64,6 +64,8 @@ public void onStart2sTask() {
         _disposable = _getEventCompletionObserver();
 
         _getObservableTask_2sToComplete()
+              .timeout(3, TimeUnit.SECONDS)
+              .subscribeOn(Schedulers.computation())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_disposable);
     }
@@ -72,8 +74,8 @@ public void onStart2sTask() {
     public void onStart5sTask() {
         _disposable = _getEventCompletionObserver();
 
-        _getObservableFor5sTask()
-              .timeout(2, TimeUnit.SECONDS, _getTimeoutObservable())
+        _getObservableTask_5sToComplete()
+              .timeout(3, TimeUnit.SECONDS, _onTimeoutObservable())
               .subscribeOn(Schedulers.computation())
               .observeOn(AndroidSchedulers.mainThread())
               .subscribe(_disposable);
@@ -82,14 +84,14 @@ public void onStart5sTask() {
     // -----------------------------------------------------------------------------------
     // Main Rx entities
 
-    private Observable<String> _getObservableFor5sTask() {
+    private Observable<String> _getObservableTask_5sToComplete() {
         return Observable.create(new ObservableOnSubscribe<String>() {
             @Override
             public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
                 _log(String.format("Starting a 5s task"));
                 subscriber.onNext("5 s");
                 try {
-                    Thread.sleep(1200);
+                    Thread.sleep(5_000);
                 } catch (InterruptedException e) {
                     e.printStackTrace();
                 }
@@ -106,24 +108,22 @@ public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
                       _log(String.format("Starting a 2s task"));
                       subscriber.onNext("2 s");
                       try {
-                          Thread.sleep(2000);
+                          Thread.sleep(2_000);
                       } catch (InterruptedException e) {
                           e.printStackTrace();
                       }
                       subscriber.onComplete();
                   }
-              })
-              .subscribeOn(Schedulers.computation())
-              .timeout(3, TimeUnit.SECONDS);
+              });
     }
 
-    private Observable<? extends String> _getTimeoutObservable() {
+    private Observable<? extends String> _onTimeoutObservable() {
         return Observable.create(new ObservableOnSubscribe<String>() {
 
             @Override
             public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
                 _log("Timing out this task ...");
-                subscriber.onComplete();
+                subscriber.onError(new Throwable("Timeout Error"));
             }
         });
     }
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 96aa931a..322c2923 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -86,6 +86,13 @@
             android:text="@string/btn_demo_timing"
             />
 
+        <Button
+            android:id="@+id/btn_demo_timeout"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_timeout"
+            />
+
         <Button
             android:id="@+id/btn_demo_exponential_backoff"
             android:layout_height="wrap_content"
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index db9cb310..17f7feee 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -9,7 +9,7 @@
     <string name="btn_demo_schedulers">bg work (schedulers &amp; concurrency)</string>
     <string name="btn_demo_buffer">accumulate calls (buffer)</string>
     <string name="btn_demo_debounce">search text listener(debounce)</string>
-    <string name="btn_demo_timeout">delayed jobs (timeout)</string>
+    <string name="btn_demo_timeout">Timeout long running jobs</string>
     <string name="btn_demo_retrofit">Retrofit + RxJava</string>
     <string name="btn_demo_double_binding_textview">Double binding (PublishSubject)</string>
     <string name="btn_demo_polling">Polling with RxJava</string>

From 4a1c9457aa21108626b230fd2b7e506134830ae1 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Sun, 27 Nov 2016 20:49:49 -0800
Subject: [PATCH 232/260] feat: point to PR

---
 README.md | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 2436efdd..c4c35eab 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,6 @@ I've also been giving talks about Learning Rx using many of the examples listed
 * [Learning RxJava For Android by Example : Part 1](https://www.youtube.com/watch?v=k3D0cWyNno4) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rxjava-for-android-by-example)\] (SF Android Meetup 2015)
 * [Learning Rx by Example : Part 2](https://vimeo.com/190922794) \[[slides](https://speakerdeck.com/kaushikgopal/learning-rx-by-example-2)\] (Øredev 2016)
 
-
 ## Examples:
 
 1. [Background work & concurrency (using Schedulers)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#1-background-work--concurrency-using-schedulers)
@@ -222,12 +221,14 @@ This is a simple example demonstrating the use of the `.timeout` operator. Butto
 
 Notice how we can provide a custom Observable that indicates how to react under a timeout Exception.
 
-## Work in Progress:
+## Rx 2.x
 
-_Examples that I would like to have here, but haven't found the time yet to flush out_
+All the examples here have been migrated to use RxJava 2.X.
 
-(queue is empty) 
+* Have a look at [PR #83 to see the diff of changes between RxJava 1 and 2](https://github.com/kaushikgopal/RxJava-Android-Samples/pull/83/files)
+* [What's different in Rx 2.x](https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0)
 
+We use [David Karnok's Interop library](https://github.com/akarnokd/RxJava2Interop) in some cases as certain libraries like RxBindings, RxRelays, RxJava-Math etc. have not been ported yet to 2.x.
 
 ## Contributing:
 

From 3d4d18ccfa193cbf43666eacf917b35e51bef2e7 Mon Sep 17 00:00:00 2001
From: Ivan Markusi <ivan.markusi@infinum.hr>
Date: Tue, 6 Dec 2016 11:52:18 +0100
Subject: [PATCH 233/260] Update README.md

Found a tiny typo while reading this awesome list of examples!
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index c4c35eab..d616cbc4 100644
--- a/README.md
+++ b/README.md
@@ -112,7 +112,7 @@ Simulating this behavior is actually way more simpler than the prevoius retry me
 
 ### 8. Form validation (using [`.combineLatest`](http://reactivex.io/documentation/operators/combinelatest.html))
 
-Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #5](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
+Thanks to Dan Lew for giving me this idea in the [fragmented podcast - episode #4](http://fragmentedpodcast.com/episodes/4/) (around the 4:30 mark).
 
 `.combineLatest` allows you to monitor the state of multiple observables at once compactly at a single location. The example demonstrated shows how you can use `.combineLatest` to validate a basic form. There are 3 primary inputs for this form to be considered "valid" (an email, a password and a number). The form will turn valid (the text below turns blue :P) once all the inputs are valid. If they are not, an error is shown against the invalid inputs.
 

From 9877c7fe2abf207b142c30aa15a35a3fca6daffa Mon Sep 17 00:00:00 2001
From: "Ravikumar.N" <nravikumar89@gmail.com>
Date: Tue, 29 Nov 2016 23:32:31 +0530
Subject: [PATCH 234/260] Replaced RxJava1 RxRelay with RxJava2 version

---
 app/build.gradle                                   |  2 +-
 .../com/morihacky/android/rxjava/rxbus/RxBus.java  | 14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 9d4306aa..99e29a4a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -51,7 +51,7 @@ dependencies {
     compile "com.github.akarnokd:rxjava2-interop:0.6.1"
 
     compile 'io.reactivex:rxjava-math:1.0.0'
-    compile 'com.jakewharton.rxrelay:rxrelay:1.2.0'
+    compile 'com.jakewharton.rxrelay2:rxrelay:2.0.0'
     compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
     compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index a953e20f..12f97b9d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -1,8 +1,9 @@
 package com.morihacky.android.rxjava.rxbus;
 
-import com.jakewharton.rxrelay.PublishRelay;
-import com.jakewharton.rxrelay.Relay;
-import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import com.jakewharton.rxrelay2.PublishRelay;
+import com.jakewharton.rxrelay2.Relay;
+
+import io.reactivex.BackpressureStrategy;
 import io.reactivex.Flowable;
 
 /**
@@ -10,15 +11,14 @@
  */
 public class RxBus {
 
-    private final Relay<Object, Object> _bus = PublishRelay.create().toSerialized();
+    private final Relay<Object> _bus = PublishRelay.create().toSerialized();
 
     public void send(Object o) {
-        _bus.call(o);
+        _bus.accept(o);
     }
 
     public Flowable<Object> asFlowable() {
-        // this won't be necessary after https://github.com/JakeWharton/RxRelay/pull/20 is complete
-        return RxJavaInterop.toV2Flowable(_bus.asObservable());
+        return _bus.toFlowable(BackpressureStrategy.LATEST);
     }
 
     public boolean hasObservers() {

From 9610af6b972a4394d87aeb6208db8d72aac87d3a Mon Sep 17 00:00:00 2001
From: TMTron <martin.trummer@tmtron.com>
Date: Tue, 24 Jan 2017 09:31:55 +0100
Subject: [PATCH 235/260] Now the EditText _inputSearchText is not accessed
 anymore from a non-UI thread by the filter() operator: instead we use the
 text-change event. This fixes #94

---
 .../android/rxjava/fragments/DebounceSearchEmitterFragment.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 9d2a3ba6..224bbc94 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -73,7 +73,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 
         _disposable = RxJavaInterop.toV2Observable(RxTextView.textChangeEvents(_inputSearchText))
               .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
-              .filter(changes -> isNotNullOrEmpty(_inputSearchText.getText().toString()))
+              .filter(changes -> isNotNullOrEmpty(changes.text().toString()))
               .observeOn(AndroidSchedulers.mainThread())
               .subscribeWith(_getSearchObserver());
     }

From c864c8f195fe0260f7058416924ac7250f8c9d85 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 31 Jan 2017 13:29:06 -0800
Subject: [PATCH 236/260] chore: ignore buck gen files

---
 .gitignore | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.gitignore b/.gitignore
index 26aca80c..01696e00 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,10 @@ build/
 .gradle/
 subProjects/facebook/build
 
+# Buck files
+buck-out/
+.buckd/
+
 # Intellij project files
 .idea/libraries
 .idea/.name

From 0cd4b682a30d50a7ca082974c189620e81e36e80 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 25 Oct 2016 20:36:54 -0700
Subject: [PATCH 237/260] feat: add example for network connectivity detection

---
 app/src/main/AndroidManifest.xml              |   2 +
 .../rxjava/fragments/MainFragment.java        |   5 +
 .../fragments/NetworkDetectorFragment.java    | 142 ++++++++++++++++++
 app/src/main/res/layout/fragment_main.xml     |   7 +
 .../res/layout/fragment_network_detector.xml  |  23 +++
 app/src/main/res/values/strings.xml           |   2 +
 6 files changed, 181 insertions(+)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
 create mode 100644 app/src/main/res/layout/fragment_network_detector.xml

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 7466dc56..3b469d7c 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,6 +21,8 @@
             </intent-filter>
         </activity>
     </application>
+
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
 
 </manifest>
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 07b974a2..725407f6 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -109,6 +109,11 @@ void demoVolleyRequest() {
         clickedOn(new VolleyDemoFragment());
     }
 
+    @OnClick(R.id.btn_demo_networkDetector)
+    void demoNetworkDetector() {
+        clickedOn(new NetworkDetectorFragment());
+    }
+
     private void clickedOn(@NonNull Fragment fragment) {
         final String tag = fragment.getClass().toString();
         getActivity().getSupportFragmentManager()
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
new file mode 100644
index 00000000..4d4a7d78
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
@@ -0,0 +1,142 @@
+package com.morihacky.android.rxjava.fragments;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.support.annotation.Nullable;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import com.morihacky.android.rxjava.R;
+import java.util.ArrayList;
+import java.util.List;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.subjects.PublishSubject;
+
+public class NetworkDetectorFragment
+      extends BaseFragment {
+
+    @Bind(R.id.list_threading_log) ListView logsList;
+
+    private LogAdapter adapter;
+    private BroadcastReceiver broadcastReceiver;
+    private List<String> logs;
+    private PublishSubject<Boolean> publishSubject;
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        ButterKnife.unbind(this);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        View layout = inflater.inflate(R.layout.fragment_network_detector, container, false);
+        ButterKnife.bind(this, layout);
+        return layout;
+    }
+
+    @Override
+    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        setupLogger();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        publishSubject = PublishSubject.create();
+
+        publishSubject
+              .startWith(getConnectivityStatus(getActivity()))
+              .distinctUntilChanged()
+              .observeOn(AndroidSchedulers.mainThread())
+              .subscribe(online -> {
+                  if (online) {
+                      log("You are online");
+                  }
+                  else {
+                      log("You are offline");
+                  }
+              });
+
+        listenToNetworkConnectivity();
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        getActivity().unregisterReceiver(broadcastReceiver);
+    }
+
+    private void listenToNetworkConnectivity() {
+
+        broadcastReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                publishSubject.onNext(getConnectivityStatus(context));
+            }
+        };
+
+        final IntentFilter intentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
+        getActivity().registerReceiver(broadcastReceiver, intentFilter);
+    }
+
+    private boolean getConnectivityStatus(Context context) {
+        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+        NetworkInfo networkInfo = cm.getActiveNetworkInfo();
+        return networkInfo != null && networkInfo.isConnected();
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private void log(String logMsg) {
+
+        if (isCurrentlyOnMainThread()) {
+            logs.add(0, logMsg + " (main thread) ");
+            adapter.clear();
+            adapter.addAll(logs);
+        }
+        else {
+            logs.add(0, logMsg + " (NOT main thread) ");
+
+            // You can only do below stuff on main thread.
+            new Handler(Looper.getMainLooper()).post(() -> {
+                adapter.clear();
+                adapter.addAll(logs);
+            });
+        }
+    }
+
+    private void setupLogger() {
+        logs = new ArrayList<>();
+        adapter = new LogAdapter(getActivity(), new ArrayList<>());
+        logsList.setAdapter(adapter);
+    }
+
+    private boolean isCurrentlyOnMainThread() {
+        return Looper.myLooper() == Looper.getMainLooper();
+    }
+
+    private class LogAdapter
+          extends ArrayAdapter<String> {
+
+        public LogAdapter(Context context, List<String> logs) {
+            super(context, R.layout.item_log, R.id.item_log, logs);
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 322c2923..9de55c7c 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -120,5 +120,12 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_pagination"
             />
+
+        <Button
+            android:id="@+id/btn_demo_networkDetector"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_networkDetector"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_network_detector.xml b/app/src/main/res/layout/fragment_network_detector.xml
new file mode 100644
index 00000000..00fae860
--- /dev/null
+++ b/app/src/main/res/layout/fragment_network_detector.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    >
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:padding="10dp"
+        android:text="@string/msg_demo_network_detector"
+        />
+
+    <ListView
+        android:id="@+id/list_threading_log"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 17f7feee..f3ee7640 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -22,6 +22,7 @@
     <string name="btn_demo_volley">Volley request demo</string>
     <string name="btn_demo_pagination">Paging example</string>
     <string name="btn_demo_pagination_more">MOAR</string>
+    <string name="btn_demo_networkDetector">Network Detector (Subject)</string>
 
     <string name="msg_demo_pagination">This is a demo of how you can do a list pagination with Rx. We page 10 items at a time and there are 55 items altogether</string>
     <string name="msg_demo_volley">This is a Volley request demo</string>
@@ -38,6 +39,7 @@
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete) \nBTN 5: run task A, pause for sometime, then proceed with Task B</string>
     <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
+    <string name="msg_demo_network_detector">This is a demo of how to use Subjects to detect Network connectivity\nToggle your Wifi/Network on or off and notice the logs</string>
 
     <string name="msg_pseudoCache_demoInfo_concat">Concat merges the results sequentially. But notice that the latter subscription starts only AFTER the first one completes. Some unnecessary waiting there.</string>
     <string name="msg_pseudoCache_demoInfo_concatEager">Concat eager is cooler. Both subscriptions start at the same time (parallely) but the order of emission is respected.</string>

From 54891b96b73662c21dbd927e239fec5f8e6ee83b Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Tue, 31 Jan 2017 13:40:16 -0800
Subject: [PATCH 238/260] ref: change network detector to Rx 2

---
 .../fragments/NetworkDetectorFragment.java       | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
index 4d4a7d78..9ee6f81b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
@@ -18,10 +18,11 @@
 import butterknife.Bind;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.R;
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.Disposable;
+import io.reactivex.processors.PublishProcessor;
 import java.util.ArrayList;
 import java.util.List;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.subjects.PublishSubject;
 
 public class NetworkDetectorFragment
       extends BaseFragment {
@@ -31,7 +32,8 @@ public class NetworkDetectorFragment
     private LogAdapter adapter;
     private BroadcastReceiver broadcastReceiver;
     private List<String> logs;
-    private PublishSubject<Boolean> publishSubject;
+    private Disposable disposable;
+    private PublishProcessor<Boolean> publishProcessor;
 
     @Override
     public void onDestroy() {
@@ -58,9 +60,9 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     public void onStart() {
         super.onStart();
 
-        publishSubject = PublishSubject.create();
+        publishProcessor = PublishProcessor.create();
 
-        publishSubject
+        disposable = publishProcessor
               .startWith(getConnectivityStatus(getActivity()))
               .distinctUntilChanged()
               .observeOn(AndroidSchedulers.mainThread())
@@ -79,6 +81,8 @@ public void onStart() {
     @Override
     public void onStop() {
         super.onStop();
+
+        disposable.dispose();
         getActivity().unregisterReceiver(broadcastReceiver);
     }
 
@@ -87,7 +91,7 @@ private void listenToNetworkConnectivity() {
         broadcastReceiver = new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
-                publishSubject.onNext(getConnectivityStatus(context));
+                publishProcessor.onNext(getConnectivityStatus(context));
             }
         };
 

From cd9e16a26b75b731c07080f28bec0114b02a24e3 Mon Sep 17 00:00:00 2001
From: Jonathan Caryl <github@jonathancaryl.co.uk>
Date: Wed, 15 Mar 2017 09:09:58 +0000
Subject: [PATCH 239/260] Update build tools

---
 app/build.gradle                         |   2 +-
 build.gradle                             |   2 +-
 gradle/wrapper/gradle-wrapper.jar        | Bin 49896 -> 54208 bytes
 gradle/wrapper/gradle-wrapper.properties |   4 +-
 gradlew                                  |  74 +++++++++++++----------
 gradlew.bat                              |  14 ++---
 6 files changed, 49 insertions(+), 47 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 99e29a4a..70474071 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -63,7 +63,7 @@ dependencies {
 
 android {
     compileSdkVersion sdkVersion
-    buildToolsVersion '23.0.3'
+    buildToolsVersion '25.0.2'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
diff --git a/build.gradle b/build.gradle
index 85ab3d95..2735236d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.2'
+        classpath 'com.android.tools.build:gradle:2.3.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 8c0fb64a8698b08ecc4158d828ca593c4928e9dd..2f220caedff2788de4bf62f2c784391386e6b72b 100644
GIT binary patch
delta 48186
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diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a0a2dce4..7ff88c47 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Oct 01 19:11:24 PDT 2016
+#Wed Mar 15 09:09:23 GMT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
diff --git a/gradlew b/gradlew
index 91a7e269..4453ccea 100755
--- a/gradlew
+++ b/gradlew
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 ##############################################################################
 ##
@@ -6,12 +6,30 @@
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
 
 APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
@@ -30,6 +48,7 @@ die ( ) {
 cygwin=false
 msys=false
 darwin=false
+nonstop=false
 case "`uname`" in
   CYGWIN* )
     cygwin=true
@@ -40,31 +59,11 @@ case "`uname`" in
   MINGW* )
     msys=true
     ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
 esac
 
-# For Cygwin, ensure paths are in UNIX format before anything is touched.
-if $cygwin ; then
-    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-fi
-
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
-done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
-APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
-
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 # Determine the Java command to use to start the JVM.
@@ -90,7 +89,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
     MAX_FD_LIMIT=`ulimit -H -n`
     if [ $? -eq 0 ] ; then
         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -114,6 +113,7 @@ fi
 if $cygwin ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
@@ -154,11 +154,19 @@ if $cygwin ; then
     esac
 fi
 
-# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
-function splitJvmOpts() {
-    JVM_OPTS=("$@")
+# Escape application args
+save ( ) {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
 }
-eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
-JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
 
-exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
index aec99730..e95643d6 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -8,14 +8,14 @@
 @rem Set local scope for the variables with windows NT shell
 if "%OS%"=="Windows_NT" setlocal
 
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
 set DIRNAME=%~dp0
 if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
@@ -46,10 +46,9 @@ echo location of your Java installation.
 goto fail
 
 :init
-@rem Get command-line arguments, handling Windowz variants
+@rem Get command-line arguments, handling Windows variants
 
 if not "%OS%" == "Windows_NT" goto win9xME_args
-if "%@eval[2+2]" == "4" goto 4NT_args
 
 :win9xME_args
 @rem Slurp the command line arguments.
@@ -60,11 +59,6 @@ set _SKIP=2
 if "x%~1" == "x" goto execute
 
 set CMD_LINE_ARGS=%*
-goto execute
-
-:4NT_args
-@rem Get arguments from the 4NT Shell from JP Software
-set CMD_LINE_ARGS=%$
 
 :execute
 @rem Setup the command line

From c42b46dad87e9e1216fe76d581ff0d177f2feae3 Mon Sep 17 00:00:00 2001
From: Jonathan Caryl <github@jonathancaryl.co.uk>
Date: Wed, 15 Mar 2017 09:10:05 +0000
Subject: [PATCH 240/260] Update butterknife

---
 app/build.gradle                              |  4 ++-
 .../rxjava/fragments/BufferDemoFragment.java  | 12 ++++----
 ...ConcurrencyWithSchedulersDemoFragment.java | 13 +++++----
 .../DebounceSearchEmitterFragment.java        | 12 ++++----
 .../DoubleBindingTextViewFragment.java        | 15 ++++++----
 .../fragments/ExponentialBackoffFragment.java | 12 +++++---
 .../FormValidationCombineLatestFragment.java  | 29 ++++++++++---------
 .../rxjava/fragments/MainFragment.java        |  7 +++--
 .../fragments/NetworkDetectorFragment.java    | 11 ++++---
 .../rxjava/fragments/PlaygroundFragment.java  | 13 +++++----
 .../rxjava/fragments/PollingFragment.java     | 11 ++++---
 .../rxjava/fragments/PseudoCacheFragment.java | 14 +++++----
 .../fragments/PseudoCacheMergeFragment.java   | 10 ++++---
 .../RetrofitAsyncTaskDeathFragment.java       | 12 ++++----
 .../rxjava/fragments/RetrofitFragment.java    | 14 +++++----
 .../fragments/RotationPersist1Fragment.java   | 11 ++++---
 .../fragments/RotationPersist2Fragment.java   |  4 +--
 .../rxjava/fragments/TimeoutDemoFragment.java |  4 +--
 .../rxjava/fragments/TimingDemoFragment.java  | 11 ++++---
 .../pagination/PaginationAutoFragment.java    |  6 ++--
 .../rxjava/pagination/PaginationFragment.java |  6 ++--
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  4 +--
 .../rxbus/RxBusDemo_Bottom2Fragment.java      |  6 ++--
 .../rxbus/RxBusDemo_Bottom3Fragment.java      |  6 ++--
 .../rxjava/volley/VolleyDemoFragment.java     | 11 ++++---
 25 files changed, 153 insertions(+), 105 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 70474071..8d5dcaad 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,6 +22,7 @@ ext {
     retrofitVersion = "2.0.0"
     sdkVersion = 24
     supportLibVersion = "24.2.1"
+    butterKnifeVersion = '8.5.1'
 }
 
 dependencies {
@@ -30,7 +31,8 @@ dependencies {
     compile "com.android.support:recyclerview-v7:${supportLibVersion}"
 
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
-    compile 'com.jakewharton:butterknife:7.0.1'
+    compile "com.jakewharton:butterknife:$butterKnifeVersion"
+    annotationProcessor "com.jakewharton:butterknife-compiler:$butterKnifeVersion"
     compile 'com.jakewharton.timber:timber:2.4.2'
     compile "com.squareup.retrofit2:retrofit:${retrofitVersion}"
     compile "com.squareup.retrofit2:converter-gson:${retrofitVersion}"
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 445aa735..60fa6131 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -18,9 +18,10 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import butterknife.Unbinder;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.observers.DisposableObserver;
@@ -43,13 +44,14 @@
 public class BufferDemoFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_threading_log) ListView _logsList;
-    @Bind(R.id.btn_start_operation) Button _tapBtn;
+    @BindView(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.btn_start_operation) Button _tapBtn;
 
     private LogAdapter _adapter;
     private List<String> _logs;
 
     private Disposable _disposable;
+    private Unbinder unbinder;
 
     @Override
     public void onResume() {
@@ -74,13 +76,13 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
     @Override public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index f97194d8..f374ed3b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -11,10 +11,12 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Unbinder;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
@@ -27,17 +29,18 @@
 public class ConcurrencyWithSchedulersDemoFragment
       extends BaseFragment {
 
-    @Bind(R.id.progress_operation_running) ProgressBar _progress;
-    @Bind(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.progress_operation_running) ProgressBar _progress;
+    @BindView(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
     private CompositeDisposable _disposables = new CompositeDisposable();
+    private Unbinder unbinder;
 
     @Override
     public void onDestroy() {
         super.onDestroy();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
         _disposables.clear();
     }
 
@@ -52,7 +55,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 224bbc94..b7a36987 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -20,10 +20,11 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import butterknife.Unbinder;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.observers.DisposableObserver;
@@ -35,19 +36,20 @@
 public class DebounceSearchEmitterFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_threading_log) ListView _logsList;
-    @Bind(R.id.input_txt_debounce) EditText _inputSearchText;
+    @BindView(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.input_txt_debounce) EditText _inputSearchText;
 
     private LogAdapter _adapter;
     private List<String> _logs;
 
     private Disposable _disposable;
+    private Unbinder unbinder;
 
     @Override
     public void onDestroy() {
         super.onDestroy();
         _disposable.dispose();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @Override
@@ -55,7 +57,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_debounce, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index d17b1e3c..63f8dab7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -7,10 +7,12 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnTextChanged;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Unbinder;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.processors.PublishProcessor;
 
@@ -20,19 +22,20 @@
 public class DoubleBindingTextViewFragment
       extends BaseFragment {
 
-    @Bind(R.id.double_binding_num1) EditText _number1;
-    @Bind(R.id.double_binding_num2) EditText _number2;
-    @Bind(R.id.double_binding_result) TextView _result;
+    @BindView(R.id.double_binding_num1) EditText _number1;
+    @BindView(R.id.double_binding_num2) EditText _number2;
+    @BindView(R.id.double_binding_result) TextView _result;
 
     Disposable _disposable;
     PublishProcessor<Float> _resultEmitterSubject;
+    private Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
 
         _resultEmitterSubject = PublishProcessor.create();
 
@@ -66,6 +69,6 @@ public void onNumberChanged() {
     public void onDestroyView() {
         super.onDestroyView();
         _disposable.dispose();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index 9b6de603..89d7a0f8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -7,12 +7,15 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
+
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 import hu.akarnokd.rxjava.interop.RxJavaInterop;
+
+import butterknife.Unbinder;
 import io.reactivex.Flowable;
 import io.reactivex.disposables.CompositeDisposable;
 import io.reactivex.functions.Function;
@@ -30,17 +33,18 @@
 public class ExponentialBackoffFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_threading_log) ListView _logList;
+    @BindView(R.id.list_threading_log) ListView _logList;
     private LogAdapter _adapter;
     private CompositeDisposable _disposables = new CompositeDisposable();
     private List<String> _logs;
+    Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_exponential_backoff, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
@@ -60,7 +64,7 @@ public void onPause() {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 3a985fcc..61c1d17e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -7,10 +7,12 @@
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.jakewharton.rxbinding.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Unbinder;
 import hu.akarnokd.rxjava.interop.RxJavaInterop;
 import io.reactivex.Flowable;
 import io.reactivex.subscribers.DisposableSubscriber;
@@ -23,32 +25,33 @@
 public class FormValidationCombineLatestFragment
       extends BaseFragment {
 
-    @Bind(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
-    @Bind(R.id.demo_combl_email) EditText _email;
-    @Bind(R.id.demo_combl_password) EditText _password;
-    @Bind(R.id.demo_combl_num) EditText _number;
+    @BindView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
+    @BindView(R.id.demo_combl_email) EditText _email;
+    @BindView(R.id.demo_combl_password) EditText _password;
+    @BindView(R.id.demo_combl_num) EditText _number;
 
     private DisposableSubscriber<Boolean> _disposableObserver = null;
     private Flowable<CharSequence> _emailChangeObservable;
     private Flowable<CharSequence> _numberChangeObservable;
     private Flowable<CharSequence> _passwordChangeObservable;
+    private Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
 
         _emailChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
-                                                                  .textChanges(_email)
-                                                                  .skip(1));
+                .textChanges(_email)
+                .skip(1));
         _passwordChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
-                                                                     .textChanges(_password)
-                                                                     .skip(1));
+                .textChanges(_password)
+                .skip(1));
         _numberChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
-                                                                   .textChanges(_number)
-                                                                   .skip(1));
+                .textChanges(_number)
+                .skip(1));
 
         _combineLatestEvents();
 
@@ -58,7 +61,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
         _disposableObserver.dispose();
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 725407f6..99cb52af 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -9,6 +9,8 @@
 import android.view.ViewGroup;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.Unbinder;
+
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.pagination.PaginationAutoFragment;
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
@@ -17,19 +19,20 @@
 public class MainFragment
       extends BaseFragment {
 
+    private Unbinder unbinder;
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_main, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @OnClick(R.id.btn_demo_schedulers)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
index 9ee6f81b..6ed8ee77 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
@@ -15,9 +15,11 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Unbinder;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.processors.PublishProcessor;
@@ -27,18 +29,19 @@
 public class NetworkDetectorFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_threading_log) ListView logsList;
+    @BindView(R.id.list_threading_log) ListView logsList;
 
     private LogAdapter adapter;
     private BroadcastReceiver broadcastReceiver;
     private List<String> logs;
     private Disposable disposable;
     private PublishProcessor<Boolean> publishProcessor;
+    private Unbinder unbinder;
 
     @Override
     public void onDestroy() {
         super.onDestroy();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @Override
@@ -46,7 +49,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_network_detector, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
index 21f61fe5..2cac3942 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
@@ -11,10 +11,12 @@
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Unbinder;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.schedulers.Schedulers;
@@ -27,17 +29,18 @@
 public class PlaygroundFragment
       extends BaseFragment {
 
-    @Bind(R.id.progress_operation_running) ProgressBar _progress;
-    @Bind(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.progress_operation_running) ProgressBar _progress;
+    @BindView(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private int _attempt = 0;
     private List<String> _logs;
+    private Unbinder unbinder;
 
     @Override
     public void onDestroy() {
         super.onDestroy();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @Override
@@ -45,7 +48,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 9f4398a9..1d320fa9 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -10,10 +10,12 @@
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
+
+import butterknife.Unbinder;
 import io.reactivex.Flowable;
 import io.reactivex.disposables.CompositeDisposable;
 import io.reactivex.disposables.Disposable;
@@ -32,12 +34,13 @@ public class PollingFragment
     private static final int POLLING_INTERVAL = 1000;
     private static final int POLL_COUNT = 8;
 
-    @Bind(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private int _counter = 0;
     private CompositeDisposable _disposables;
     private List<String> _logs;
+    private Unbinder unbinder;
 
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
@@ -51,7 +54,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_polling, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
@@ -65,7 +68,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     public void onDestroy() {
         super.onDestroy();
         _disposables.clear();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @OnClick(R.id.btn_start_simple_polling)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
index e4d3de1a..873794d1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
@@ -22,9 +22,10 @@
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.Unbinder;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.observers.DisposableObserver;
@@ -34,26 +35,27 @@
 public class PseudoCacheFragment
       extends BaseFragment {
 
-    @Bind(R.id.info_pseudoCache_demo) TextView infoText;
-    @Bind(R.id.info_pseudoCache_listSubscription) ListView listSubscriptionInfo;
-    @Bind(R.id.info_pseudoCache_listDtl) ListView listDetail;
+    @BindView(R.id.info_pseudoCache_demo) TextView infoText;
+    @BindView(R.id.info_pseudoCache_listSubscription) ListView listSubscriptionInfo;
+    @BindView(R.id.info_pseudoCache_listDtl) ListView listDetail;
 
     private ArrayAdapter<String> adapterDetail, adapterSubscriptionInfo;
     private HashMap<String, Long> contributionMap = null;
+    private Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @OnClick(R.id.btn_pseudoCache_concat)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index ec2d49e5..9c8d79bf 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -18,9 +18,10 @@
 import java.util.HashMap;
 import java.util.List;
 
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.Unbinder;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.observers.DisposableObserver;
@@ -30,18 +31,19 @@
 public class PseudoCacheMergeFragment
       extends BaseFragment {
 
-    @Bind(R.id.log_list) ListView _resultList;
+    @BindView(R.id.log_list) ListView _resultList;
 
     private ArrayAdapter<String> _adapter;
     private HashMap<String, Long> _contributionMap = null;
     private HashMap<Contributor, Long> _resultAgeMap = new HashMap<>();
+    private Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         _initializeCache();
         return layout;
     }
@@ -49,7 +51,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @OnClick(R.id.btn_start_pseudo_cache)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 180462c9..9da8535e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -18,9 +18,10 @@
 
 import java.util.ArrayList;
 
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.Unbinder;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.observers.DisposableObserver;
 import io.reactivex.schedulers.Schedulers;
@@ -30,11 +31,12 @@
 public class RetrofitAsyncTaskDeathFragment
       extends Fragment {
 
-    @Bind(R.id.btn_demo_retrofit_async_death_username) EditText _username;
-    @Bind(R.id.log_list) ListView _resultList;
+    @BindView(R.id.btn_demo_retrofit_async_death_username) EditText _username;
+    @BindView(R.id.log_list) ListView _resultList;
 
     private GithubApi _githubService;
     private ArrayAdapter<String> _adapter;
+    private Unbinder unbinder;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -52,7 +54,7 @@ public View onCreateView(LayoutInflater inflater,
         View layout = inflater.inflate(R.layout.fragment_retrofit_async_task_death,
               container,
               false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
 
         _adapter = new ArrayAdapter<>(getActivity(),
               R.layout.item_log,
@@ -67,7 +69,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @OnClick(R.id.btn_demo_retrofit_async_death)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 96875d60..540f3bf5 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -20,9 +20,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.Unbinder;
 import io.reactivex.Observable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
@@ -36,13 +37,14 @@
 public class RetrofitFragment
       extends Fragment {
 
-    @Bind(R.id.demo_retrofit_contributors_username) EditText _username;
-    @Bind(R.id.demo_retrofit_contributors_repository) EditText _repo;
-    @Bind(R.id.log_list) ListView _resultList;
+    @BindView(R.id.demo_retrofit_contributors_username) EditText _username;
+    @BindView(R.id.demo_retrofit_contributors_repository) EditText _repo;
+    @BindView(R.id.log_list) ListView _resultList;
 
     private ArrayAdapter<String> _adapter;
     private GithubApi _githubService;
     private CompositeDisposable _disposables;
+    private Unbinder unbinder;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -59,7 +61,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable Bundle savedInstanceState) {
 
         View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
 
         _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
         //_adapter.setNotifyOnChange(true);
@@ -71,7 +73,7 @@ public View onCreateView(LayoutInflater inflater,
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     @Override
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index ec990a13..9ee37153 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -8,11 +8,13 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
+import butterknife.Unbinder;
 import io.reactivex.Flowable;
 import io.reactivex.disposables.CompositeDisposable;
 import io.reactivex.subscribers.DisposableSubscriber;
@@ -29,10 +31,11 @@ public class RotationPersist1Fragment
 
     public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
 
-    @Bind(R.id.list_threading_log) ListView _logList;
+    @BindView(R.id.list_threading_log) ListView _logList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
+    private Unbinder unbinder;
 
     private CompositeDisposable _disposables = new CompositeDisposable();
 
@@ -100,7 +103,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
@@ -113,7 +116,7 @@ public void onPause() {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     private void _setupLogger() {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index cdf5d244..d9597478 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -8,7 +8,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
@@ -29,7 +29,7 @@ public class RotationPersist2Fragment
 
     public static final String FRAG_TAG = RotationPersist2WorkerFragment.class.getName();
 
-    @Bind(R.id.list_threading_log) ListView _logList;
+    @BindView(R.id.list_threading_log) ListView _logList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index d70dd669..2cda5f2a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -8,7 +8,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
@@ -27,7 +27,7 @@
 public class TimeoutDemoFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private DisposableObserver<String> _disposable;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 8e8458b7..7bcc9147 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -7,11 +7,13 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
+import butterknife.Unbinder;
 import io.reactivex.Flowable;
 import io.reactivex.subscribers.DefaultSubscriber;
 import io.reactivex.subscribers.DisposableSubscriber;
@@ -30,20 +32,21 @@
 public class TimingDemoFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.list_threading_log) ListView _logsList;
 
     private LogAdapter _adapter;
     private List<String> _logs;
 
     private DisposableSubscriber<Long> _subscriber1;
     private DisposableSubscriber<Long> _subscriber2;
+    private Unbinder unbinder;
 
     @Override
     public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_demo_timing, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
@@ -56,7 +59,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
 
     }
 // -----------------------------------------------------------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index a506c629..607a38d0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -8,7 +8,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ProgressBar;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
@@ -26,8 +26,8 @@
 public class PaginationAutoFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_paging) RecyclerView _pagingList;
-    @Bind(R.id.progress_paging) ProgressBar _progressBar;
+    @BindView(R.id.list_paging) RecyclerView _pagingList;
+    @BindView(R.id.progress_paging) ProgressBar _progressBar;
 
     private PaginationAutoAdapter _adapter;
     private RxBus _bus;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index 7569b3c9..c7042d99 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -8,7 +8,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ProgressBar;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
@@ -26,8 +26,8 @@
 public class PaginationFragment
       extends BaseFragment {
 
-    @Bind(R.id.list_paging) RecyclerView _pagingList;
-    @Bind(R.id.progress_paging) ProgressBar _progressBar;
+    @BindView(R.id.list_paging) RecyclerView _pagingList;
+    @BindView(R.id.progress_paging) ProgressBar _progressBar;
     private PaginationAdapter _adapter;
     private RxBus _bus;
     private CompositeDisposable _disposables;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 4ebb3200..91bc5cdb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -7,7 +7,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
@@ -17,7 +17,7 @@
 public class RxBusDemo_Bottom1Fragment
       extends BaseFragment {
 
-    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @BindView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
     private CompositeDisposable _disposables;
     private RxBus _rxBus;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index a2a99587..51e2e3c1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -7,7 +7,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
@@ -21,8 +21,8 @@
 public class RxBusDemo_Bottom2Fragment
       extends BaseFragment {
 
-    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    @BindView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @BindView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
 
     private RxBus _rxBus;
     private CompositeDisposable _disposables;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index d4125f0a..ec5ea58a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -7,7 +7,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.TextView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import com.morihacky.android.rxjava.MainActivity;
 import com.morihacky.android.rxjava.R;
@@ -20,8 +20,8 @@
 public class RxBusDemo_Bottom3Fragment
       extends BaseFragment {
 
-    @Bind(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @Bind(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
+    @BindView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
+    @BindView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
     private RxBus _rxBus;
     private CompositeDisposable _disposables;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index c357e536..9a8e9d2f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -9,7 +9,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
-import butterknife.Bind;
+import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
 import com.android.volley.Request;
@@ -19,6 +19,8 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
+
+import butterknife.Unbinder;
 import io.reactivex.Flowable;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.CompositeDisposable;
@@ -36,10 +38,11 @@ public class VolleyDemoFragment
 
     public static final String TAG = "VolleyDemoFragment";
 
-    @Bind(R.id.list_threading_log) ListView _logsList;
+    @BindView(R.id.list_threading_log) ListView _logsList;
 
     private List<String> _logs;
     private LogAdapter _adapter;
+    private Unbinder unbinder;
 
     private CompositeDisposable _disposables = new CompositeDisposable();
 
@@ -48,7 +51,7 @@ public View onCreateView(LayoutInflater inflater,
                              @Nullable ViewGroup container,
                              @Nullable Bundle savedInstanceState) {
         View layout = inflater.inflate(R.layout.fragment_volley, container, false);
-        ButterKnife.bind(this, layout);
+        unbinder = ButterKnife.bind(this, layout);
         return layout;
     }
 
@@ -67,7 +70,7 @@ public void onPause() {
     @Override
     public void onDestroyView() {
         super.onDestroyView();
-        ButterKnife.unbind(this);
+        unbinder.unbind();
     }
 
     /**

From cbd585b30844e4e96c9333026cc221b69cb45012 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 15 Mar 2017 06:09:01 -0700
Subject: [PATCH 241/260] chore: ignore idea files

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 01696e00..74c05caa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@ buck-out/
 .buckd/
 
 # Intellij project files
+.idea/
 .idea/libraries
 .idea/.name
 .idea/compiler.xml

From 06f8bd3350900c078b2b51a61cc2cae7d259c920 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 15 Mar 2017 06:23:13 -0700
Subject: [PATCH 242/260] fix: avoid use of private api getFragments

Closes #97
---
 app/build.gradle                                  |  2 +-
 .../fragments/RotationPersist1Fragment.java       | 15 +++++++--------
 .../fragments/RotationPersist1WorkerFragment.java | 14 +++++---------
 .../fragments/RotationPersist2Fragment.java       | 12 ++++++------
 .../fragments/RotationPersist2WorkerFragment.java | 14 +++++---------
 5 files changed, 24 insertions(+), 33 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 8d5dcaad..7ec46136 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -21,7 +21,7 @@ ext {
     okhttpVersion = "3.0.1"
     retrofitVersion = "2.0.0"
     sdkVersion = 24
-    supportLibVersion = "24.2.1"
+    supportLibVersion = "25.2.0"
     butterKnifeVersion = '8.5.1'
 }
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index 9ee37153..e1b4ac53 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -1,5 +1,7 @@
 package com.morihacky.android.rxjava.fragments;
 
+import static android.os.Looper.getMainLooper;
+
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.annotation.Nullable;
@@ -11,10 +13,9 @@
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
+import butterknife.Unbinder;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-
-import butterknife.Unbinder;
 import io.reactivex.Flowable;
 import io.reactivex.disposables.CompositeDisposable;
 import io.reactivex.subscribers.DisposableSubscriber;
@@ -22,14 +23,11 @@
 import java.util.List;
 import timber.log.Timber;
 
-
-import static android.os.Looper.getMainLooper;
-
 public class RotationPersist1Fragment
       extends BaseFragment
       implements RotationPersist1WorkerFragment.IAmYourMaster {
 
-    public static final String FRAG_TAG = RotationPersist1WorkerFragment.class.getName();
+    public static final String TAG = RotationPersist1Fragment.class.toString();
 
     @BindView(R.id.list_threading_log) ListView _logList;
 
@@ -48,11 +46,12 @@ public void startOperationFromWorkerFrag() {
 
         FragmentManager fm = getActivity().getSupportFragmentManager();
         RotationPersist1WorkerFragment frag =
-              (RotationPersist1WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+              (RotationPersist1WorkerFragment) fm.findFragmentByTag(
+                  RotationPersist1WorkerFragment.TAG);
 
         if (frag == null) {
             frag = new RotationPersist1WorkerFragment();
-            fm.beginTransaction().add(frag, FRAG_TAG).commit();
+            fm.beginTransaction().add(frag, RotationPersist1WorkerFragment.TAG).commit();
         } else {
             Timber.d("Worker frag already spawned");
         }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
index 34b479fa..69b18027 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
@@ -7,13 +7,14 @@
 import io.reactivex.Flowable;
 import io.reactivex.disposables.Disposable;
 import io.reactivex.flowables.ConnectableFlowable;
-import java.util.List;
 import java.util.concurrent.TimeUnit;
 
 public class RotationPersist1WorkerFragment
       extends Fragment {
 
-    private IAmYourMaster _masterFrag;
+  public static final String TAG = RotationPersist1WorkerFragment.class.toString();
+
+  private IAmYourMaster _masterFrag;
     private ConnectableFlowable<Integer> _storedIntsFlowable;
     private Disposable _storedIntsDisposable;
 
@@ -26,14 +27,9 @@ public class RotationPersist1WorkerFragment
     public void onAttach(Context context) {
         super.onAttach(context);
 
-        List<Fragment> frags = ((MainActivity) context)
+      _masterFrag = (RotationPersist1Fragment) ((MainActivity) context)
               .getSupportFragmentManager()
-              .getFragments();
-        for (Fragment f : frags) {
-            if (f instanceof IAmYourMaster) {
-                _masterFrag = (IAmYourMaster) f;
-            }
-        }
+              .findFragmentByTag(RotationPersist1Fragment.TAG);
 
         if (_masterFrag == null) {
             throw new ClassCastException("We did not find a master who can understand us :(");
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index d9597478..3308bf7c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -1,5 +1,7 @@
 package com.morihacky.android.rxjava.fragments;
 
+import static android.os.Looper.getMainLooper;
+
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.annotation.Nullable;
@@ -20,14 +22,11 @@
 import java.util.List;
 import timber.log.Timber;
 
-
-import static android.os.Looper.getMainLooper;
-
 public class RotationPersist2Fragment
       extends BaseFragment
       implements RotationPersist2WorkerFragment.IAmYourMaster {
 
-    public static final String FRAG_TAG = RotationPersist2WorkerFragment.class.getName();
+    public static final String TAG = RotationPersist2Fragment.class.toString();
 
     @BindView(R.id.list_threading_log) ListView _logList;
 
@@ -44,13 +43,14 @@ public void startOperationFromWorkerFrag() {
         _adapter.clear();
 
         FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersist2WorkerFragment frag = (RotationPersist2WorkerFragment) fm.findFragmentByTag(FRAG_TAG);
+        RotationPersist2WorkerFragment frag = (RotationPersist2WorkerFragment) fm.findFragmentByTag(
+            RotationPersist2WorkerFragment.TAG);
 
         if (frag == null) {
             frag = new RotationPersist2WorkerFragment();
             fm
                   .beginTransaction()
-                  .add(frag, FRAG_TAG)
+                  .add(frag, RotationPersist2WorkerFragment.TAG)
                   .commit();
         }
         else {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
index 353a8faa..bc6ca287 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
@@ -6,12 +6,13 @@
 import com.morihacky.android.rxjava.MainActivity;
 import io.reactivex.Flowable;
 import io.reactivex.processors.PublishProcessor;
-import java.util.List;
 import java.util.concurrent.TimeUnit;
 
 public class RotationPersist2WorkerFragment
       extends Fragment {
 
+    public static final String TAG = RotationPersist2WorkerFragment.class.toString();
+
     private PublishProcessor<Integer> _intStream;
     private PublishProcessor<Boolean> _lifeCycleStream;
 
@@ -27,14 +28,9 @@ public class RotationPersist2WorkerFragment
     public void onAttach(Context context) {
         super.onAttach(context);
 
-        List<Fragment> frags = ((MainActivity) context)
-              .getSupportFragmentManager()
-              .getFragments();
-        for (Fragment f : frags) {
-            if (f instanceof IAmYourMaster) {
-                _masterFrag = (IAmYourMaster) f;
-            }
-        }
+        _masterFrag = (RotationPersist2Fragment) ((MainActivity) context)
+            .getSupportFragmentManager().findFragmentByTag(RotationPersist2Fragment.TAG);
+
 
         if (_masterFrag == null) {
             throw new ClassCastException("We did not find a master who can understand us :(");

From 21eac522aa4931e93cfe4c91fab3d0884c4f714d Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 15 Mar 2017 06:28:55 -0700
Subject: [PATCH 243/260] chore: add javafmt plugin dep

---
 app/build.gradle | 1 +
 build.gradle     | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/app/build.gradle b/app/build.gradle
index 7ec46136..3472af89 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,6 +16,7 @@ buildscript {
 
 apply plugin: 'com.android.application'
 apply plugin: 'me.tatarka.retrolambda'
+apply plugin: 'com.f2prateek.javafmt'
 
 ext {
     okhttpVersion = "3.0.1"
diff --git a/build.gradle b/build.gradle
index 2735236d..09bf45bb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,9 +7,11 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath 'com.f2prateek.javafmt:javafmt:0.1.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
+
     }
 }
 

From 59e31d1732eb94e597d5c04724685126f0712d21 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 15 Mar 2017 06:29:14 -0700
Subject: [PATCH 244/260] fix: cleaup formatting to google-java-fmt

---
 .../android/rxjava/MainActivity.java          |  76 ++-
 .../com/morihacky/android/rxjava/MyApp.java   |  41 +-
 .../rxjava/fragments/BaseFragment.java        |  15 +-
 .../rxjava/fragments/BufferDemoFragment.java  | 232 ++++----
 ...ConcurrencyWithSchedulersDemoFragment.java | 248 ++++----
 .../DebounceSearchEmitterFragment.java        | 205 +++----
 .../DoubleBindingTextViewFragment.java        |  82 +--
 .../fragments/ExponentialBackoffFragment.java | 361 ++++++------
 .../FormValidationCombineLatestFragment.java  | 185 +++---
 .../rxjava/fragments/MainFragment.java        | 218 +++----
 .../fragments/NetworkDetectorFragment.java    | 210 +++----
 .../rxjava/fragments/PlaygroundFragment.java  | 202 +++----
 .../rxjava/fragments/PollingFragment.java     | 377 ++++++------
 .../rxjava/fragments/PseudoCacheFragment.java | 556 +++++++++---------
 .../fragments/PseudoCacheMergeFragment.java   | 206 +++----
 .../RetrofitAsyncTaskDeathFragment.java       | 143 +++--
 .../rxjava/fragments/RetrofitFragment.java    | 244 ++++----
 .../fragments/RotationPersist1Fragment.java   | 203 +++----
 .../RotationPersist1WorkerFragment.java       | 127 ++--
 .../fragments/RotationPersist2Fragment.java   | 183 +++---
 .../RotationPersist2WorkerFragment.java       | 135 ++---
 .../rxjava/fragments/TimeoutDemoFragment.java | 280 ++++-----
 .../rxjava/fragments/TimingDemoFragment.java  | 378 ++++++------
 .../rxjava/pagination/PaginationAdapter.java  | 132 ++---
 .../pagination/PaginationAutoAdapter.java     |  84 ++-
 .../pagination/PaginationAutoFragment.java    | 188 +++---
 .../rxjava/pagination/PaginationFragment.java | 180 +++---
 .../android/rxjava/retrofit/Contributor.java  |   4 +-
 .../android/rxjava/retrofit/GithubApi.java    |  32 +-
 .../rxjava/retrofit/GithubService.java        |  49 +-
 .../android/rxjava/retrofit/User.java         |   4 +-
 .../morihacky/android/rxjava/rxbus/RxBus.java |  26 +-
 .../rxjava/rxbus/RxBusDemoFragment.java       |  46 +-
 .../rxbus/RxBusDemo_Bottom1Fragment.java      |  85 ++-
 .../rxbus/RxBusDemo_Bottom2Fragment.java      | 151 ++---
 .../rxbus/RxBusDemo_Bottom3Fragment.java      | 153 ++---
 .../rxjava/rxbus/RxBusDemo_TopFragment.java   |  40 +-
 .../android/rxjava/volley/MyVolley.java       |  26 +-
 .../rxjava/volley/VolleyDemoFragment.java     | 271 ++++-----
 .../android/rxjava/wiring/LogAdapter.java     |   9 +-
 40 files changed, 3211 insertions(+), 3176 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 59715261..8c5df2f4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -8,54 +8,52 @@
 import com.morihacky.android.rxjava.fragments.RotationPersist2WorkerFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
-public class MainActivity
-      extends FragmentActivity {
+public class MainActivity extends FragmentActivity {
 
-    private RxBus _rxBus = null;
+  private RxBus _rxBus = null;
 
-    @Override
-    public void onBackPressed() {
-        super.onBackPressed();
-        _removeWorkerFragments();
-    }
+  @Override
+  public void onBackPressed() {
+    super.onBackPressed();
+    _removeWorkerFragments();
+  }
 
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
 
-        if (savedInstanceState == null) {
-            getSupportFragmentManager().beginTransaction()
-                                       .replace(android.R.id.content, new MainFragment(), this.toString())
-                                       .commit();
-        }
+    if (savedInstanceState == null) {
+      getSupportFragmentManager()
+          .beginTransaction()
+          .replace(android.R.id.content, new MainFragment(), this.toString())
+          .commit();
     }
+  }
 
-    // This is better done with a DI Library like Dagger
-    public RxBus getRxBusSingleton() {
-        if (_rxBus == null) {
-            _rxBus = new RxBus();
-        }
-
-        return _rxBus;
+  // This is better done with a DI Library like Dagger
+  public RxBus getRxBusSingleton() {
+    if (_rxBus == null) {
+      _rxBus = new RxBus();
     }
 
-    private void _removeWorkerFragments() {
-        Fragment frag = getSupportFragmentManager().findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
+    return _rxBus;
+  }
 
-        if (frag != null) {
-            getSupportFragmentManager()
-                  .beginTransaction()
-                  .remove(frag)
-                  .commit();
-        }
+  private void _removeWorkerFragments() {
+    Fragment frag =
+        getSupportFragmentManager()
+            .findFragmentByTag(RotationPersist1WorkerFragment.class.getName());
+
+    if (frag != null) {
+      getSupportFragmentManager().beginTransaction().remove(frag).commit();
+    }
 
-        frag = getSupportFragmentManager().findFragmentByTag(RotationPersist2WorkerFragment.class.getName());
+    frag =
+        getSupportFragmentManager()
+            .findFragmentByTag(RotationPersist2WorkerFragment.class.getName());
 
-        if (frag != null) {
-            getSupportFragmentManager()
-                  .beginTransaction()
-                  .remove(frag)
-                  .commit();
-        }
+    if (frag != null) {
+      getSupportFragmentManager().beginTransaction().remove(frag).commit();
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index 899b56d6..99adc071 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -6,33 +6,32 @@
 import com.squareup.leakcanary.RefWatcher;
 import timber.log.Timber;
 
-public class MyApp
-      extends Application {
+public class MyApp extends Application {
 
-    private static MyApp _instance;
-    private RefWatcher _refWatcher;
+  private static MyApp _instance;
+  private RefWatcher _refWatcher;
 
-    public static MyApp get() {
-        return _instance;
-    }
+  public static MyApp get() {
+    return _instance;
+  }
 
-    public static RefWatcher getRefWatcher() {
-        return MyApp.get()._refWatcher;
-    }
+  public static RefWatcher getRefWatcher() {
+    return MyApp.get()._refWatcher;
+  }
 
-    @Override
-    public void onCreate() {
-        super.onCreate();
+  @Override
+  public void onCreate() {
+    super.onCreate();
 
-        _instance = (MyApp) getApplicationContext();
-        _refWatcher = LeakCanary.install(this);
+    _instance = (MyApp) getApplicationContext();
+    _refWatcher = LeakCanary.install(this);
 
-        // for better RxJava debugging
-        //RxJavaHooks.enableAssemblyTracking();
+    // for better RxJava debugging
+    //RxJavaHooks.enableAssemblyTracking();
 
-        // Initialize Volley
-        MyVolley.init(this);
+    // Initialize Volley
+    MyVolley.init(this);
 
-        Timber.plant(new Timber.DebugTree());
-    }
+    Timber.plant(new Timber.DebugTree());
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java
index 429f8ba0..4ce242f3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BaseFragment.java
@@ -4,13 +4,12 @@
 import com.morihacky.android.rxjava.MyApp;
 import com.squareup.leakcanary.RefWatcher;
 
-public class BaseFragment
-      extends Fragment {
+public class BaseFragment extends Fragment {
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        RefWatcher refWatcher = MyApp.getRefWatcher();
-        refWatcher.watch(this);
-    }
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    RefWatcher refWatcher = MyApp.getRefWatcher();
+    refWatcher.watch(this);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 60fa6131..85f618ef 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -30,126 +30,132 @@
 /**
  * This is a demonstration of the `buffer` Observable.
  *
- * The buffer observable allows taps to be collected only within a time span. So taps outside the
+ * <p>The buffer observable allows taps to be collected only within a time span. So taps outside the
  * 2s limit imposed by buffer will get accumulated in the next log statement.
  *
- * If you're looking for a more foolproof solution that accumulates "continuous" taps vs
- * a more dumb solution as show below (i.e. number of taps within a timespan)
- * look at {@link com.morihacky.android.rxjava.rxbus.RxBusDemo_Bottom3Fragment} where a combo
- * of `publish` and `buffer` is used.
+ * <p>If you're looking for a more foolproof solution that accumulates "continuous" taps vs a more
+ * dumb solution as show below (i.e. number of taps within a timespan) look at {@link
+ * com.morihacky.android.rxjava.rxbus.RxBusDemo_Bottom3Fragment} where a combo of `publish` and
+ * `buffer` is used.
  *
- * Also http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/
+ * <p>Also http://nerds.weddingpartyapp.com/tech/2015/01/05/debouncedbuffer-used-in-rxbus-example/
  * if you're looking for words instead of code
  */
-public class BufferDemoFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_threading_log) ListView _logsList;
-    @BindView(R.id.btn_start_operation) Button _tapBtn;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-
-    private Disposable _disposable;
-    private Unbinder unbinder;
-
-    @Override
-    public void onResume() {
-        super.onResume();
-        _disposable = _getBufferedDisposable();
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        _disposable.dispose();
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    private Disposable _getBufferedDisposable() {
-        return  RxJavaInterop.toV2Observable(RxView.clickEvents(_tapBtn))
-              .map(onClickEvent -> {
-                  Timber.d("--------- GOT A TAP");
-                  _log("GOT A TAP");
-                  return 1;
-              })
-              .buffer(2, TimeUnit.SECONDS)
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribeWith(new DisposableObserver<List<Integer>>() {
-
-                  @Override
-                  public void onComplete() {
-                      // fyi: you'll never reach here
-                      Timber.d("----- onCompleted");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "--------- Woops on error!");
-                      _log("Dang error! check your logs");
-                  }
-
-                  @Override
-                  public void onNext(List<Integer> integers) {
-                      Timber.d("--------- onNext");
-                      if (integers.size() > 0) {
-                          _log(String.format("%d taps", integers.size()));
-                      } else {
-                          Timber.d("--------- No taps received ");
-                      }
-                  }
-              });
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Methods that help wiring up the example (irrelevant to RxJava)
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+public class BufferDemoFragment extends BaseFragment {
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  @BindView(R.id.btn_start_operation)
+  Button _tapBtn;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+
+  private Disposable _disposable;
+  private Unbinder unbinder;
+
+  @Override
+  public void onResume() {
+    super.onResume();
+    _disposable = _getBufferedDisposable();
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    _disposable.dispose();
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_buffer, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Main Rx entities
+
+  private Disposable _getBufferedDisposable() {
+    return RxJavaInterop.toV2Observable(RxView.clickEvents(_tapBtn))
+        .map(
+            onClickEvent -> {
+              Timber.d("--------- GOT A TAP");
+              _log("GOT A TAP");
+              return 1;
+            })
+        .buffer(2, TimeUnit.SECONDS)
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribeWith(
+            new DisposableObserver<List<Integer>>() {
+
+              @Override
+              public void onComplete() {
+                // fyi: you'll never reach here
+                Timber.d("----- onCompleted");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "--------- Woops on error!");
+                _log("Dang error! check your logs");
+              }
+
+              @Override
+              public void onNext(List<Integer> integers) {
+                Timber.d("--------- onNext");
+                if (integers.size() > 0) {
+                  _log(String.format("%d taps", integers.size()));
+                } else {
+                  Timber.d("--------- No taps received ");
+                }
+              }
+            });
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Methods that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 _adapter.clear();
                 _adapter.addAll(_logs);
-            });
-        }
+              });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
index f374ed3b..9a9a61ea 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ConcurrencyWithSchedulersDemoFragment.java
@@ -26,138 +26,140 @@
 import java.util.List;
 import timber.log.Timber;
 
-public class ConcurrencyWithSchedulersDemoFragment
-      extends BaseFragment {
-
-    @BindView(R.id.progress_operation_running) ProgressBar _progress;
-    @BindView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-    private CompositeDisposable _disposables = new CompositeDisposable();
-    private Unbinder unbinder;
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        unbinder.unbind();
-        _disposables.clear();
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @OnClick(R.id.btn_start_operation)
-    public void startLongOperation() {
-
-        _progress.setVisibility(View.VISIBLE);
-        _log("Button Clicked");
-
-        DisposableObserver<Boolean> d = _getDisposableObserver();
-
-        _getObservable()
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(d);
-
-        _disposables.add(d);
-    }
-
-    private Observable<Boolean> _getObservable() {
-        return Observable.just(true).map(aBoolean -> {
-            _log("Within Observable");
-            _doSomeLongOperation_thatBlocksCurrentThread();
-            return aBoolean;
-        });
-    }
-
-    /**
-     * Observer that handles the result through the 3 important actions:
-     *
-     * 1. onCompleted
-     * 2. onError
-     * 3. onNext
-     */
-    private DisposableObserver<Boolean> _getDisposableObserver() {
-        return new DisposableObserver<Boolean>() {
-
-            @Override
-            public void onComplete() {
-                _log("On complete");
-                _progress.setVisibility(View.INVISIBLE);
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "Error in RxJava Demo concurrency");
-                _log(String.format("Boo! Error %s", e.getMessage()));
-                _progress.setVisibility(View.INVISIBLE);
-            }
-
-            @Override
-            public void onNext(Boolean bool) {
-                _log(String.format("onNext with return value \"%b\"", bool));
-            }
-        };
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    private void _doSomeLongOperation_thatBlocksCurrentThread() {
-        _log("performing long operation");
-
-        try {
-            Thread.sleep(3000);
-        } catch (InterruptedException e) {
-            Timber.d("Operation was interrupted");
-        }
+public class ConcurrencyWithSchedulersDemoFragment extends BaseFragment {
+
+  @BindView(R.id.progress_operation_running)
+  ProgressBar _progress;
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+  private CompositeDisposable _disposables = new CompositeDisposable();
+  private Unbinder unbinder;
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    unbinder.unbind();
+    _disposables.clear();
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.btn_start_operation)
+  public void startLongOperation() {
+
+    _progress.setVisibility(View.VISIBLE);
+    _log("Button Clicked");
+
+    DisposableObserver<Boolean> d = _getDisposableObserver();
+
+    _getObservable()
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(d);
+
+    _disposables.add(d);
+  }
+
+  private Observable<Boolean> _getObservable() {
+    return Observable.just(true)
+        .map(
+            aBoolean -> {
+              _log("Within Observable");
+              _doSomeLongOperation_thatBlocksCurrentThread();
+              return aBoolean;
+            });
+  }
+
+  /**
+   * Observer that handles the result through the 3 important actions:
+   *
+   * <p>1. onCompleted 2. onError 3. onNext
+   */
+  private DisposableObserver<Boolean> _getDisposableObserver() {
+    return new DisposableObserver<Boolean>() {
+
+      @Override
+      public void onComplete() {
+        _log("On complete");
+        _progress.setVisibility(View.INVISIBLE);
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        Timber.e(e, "Error in RxJava Demo concurrency");
+        _log(String.format("Boo! Error %s", e.getMessage()));
+        _progress.setVisibility(View.INVISIBLE);
+      }
+
+      @Override
+      public void onNext(Boolean bool) {
+        _log(String.format("onNext with return value \"%b\"", bool));
+      }
+    };
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _doSomeLongOperation_thatBlocksCurrentThread() {
+    _log("performing long operation");
+
+    try {
+      Thread.sleep(3000);
+    } catch (InterruptedException e) {
+      Timber.d("Operation was interrupted");
     }
+  }
 
-    private void _log(String logMsg) {
+  private void _log(String logMsg) {
 
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
 
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 _adapter.clear();
                 _adapter.addAll(_logs);
-            });
-        }
+              });
     }
+  }
 
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-          extends ArrayAdapter<String> {
+  private class LogAdapter extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index b7a36987..129f7b11 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -33,111 +33,114 @@
 import static co.kaush.core.util.CoreNullnessUtils.isNotNullOrEmpty;
 import static java.lang.String.format;
 
-public class DebounceSearchEmitterFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_threading_log) ListView _logsList;
-    @BindView(R.id.input_txt_debounce) EditText _inputSearchText;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-
-    private Disposable _disposable;
-    private Unbinder unbinder;
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _disposable.dispose();
-        unbinder.unbind();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_debounce, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @OnClick(R.id.clr_debounce)
-    public void onClearLog() {
-        _logs = new ArrayList<>();
-        _adapter.clear();
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-
-        _disposable = RxJavaInterop.toV2Observable(RxTextView.textChangeEvents(_inputSearchText))
-              .debounce(400, TimeUnit.MILLISECONDS)// default Scheduler is Computation
-              .filter(changes -> isNotNullOrEmpty(changes.text().toString()))
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribeWith(_getSearchObserver());
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    private DisposableObserver<TextViewTextChangeEvent> _getSearchObserver() {
-        return new DisposableObserver<TextViewTextChangeEvent>() {
-            @Override
-            public void onComplete() {
-                Timber.d("--------- onComplete");
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "--------- Woops on error!");
-                _log("Dang error. check your logs");
-            }
-
-            @Override
-            public void onNext(TextViewTextChangeEvent onTextChangeEvent) {
-                _log(format("Searching for %s", onTextChangeEvent.text().toString()));
-            }
-        };
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+public class DebounceSearchEmitterFragment extends BaseFragment {
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  @BindView(R.id.input_txt_debounce)
+  EditText _inputSearchText;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+
+  private Disposable _disposable;
+  private Unbinder unbinder;
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _disposable.dispose();
+    unbinder.unbind();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_debounce, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @OnClick(R.id.clr_debounce)
+  public void onClearLog() {
+    _logs = new ArrayList<>();
+    _adapter.clear();
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+
+    _disposable =
+        RxJavaInterop.toV2Observable(RxTextView.textChangeEvents(_inputSearchText))
+            .debounce(400, TimeUnit.MILLISECONDS) // default Scheduler is Computation
+            .filter(changes -> isNotNullOrEmpty(changes.text().toString()))
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribeWith(_getSearchObserver());
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Main Rx entities
+
+  private DisposableObserver<TextViewTextChangeEvent> _getSearchObserver() {
+    return new DisposableObserver<TextViewTextChangeEvent>() {
+      @Override
+      public void onComplete() {
+        Timber.d("--------- onComplete");
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        Timber.e(e, "--------- Woops on error!");
+        _log("Dang error. check your logs");
+      }
+
+      @Override
+      public void onNext(TextViewTextChangeEvent onTextChangeEvent) {
+        _log(format("Searching for %s", onTextChangeEvent.text().toString()));
+      }
+    };
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 _adapter.clear();
                 _adapter.addAll(_logs);
-            });
-        }
+              });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-          extends ArrayAdapter<String> {
+  private class LogAdapter extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
index 63f8dab7..883f043e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DoubleBindingTextViewFragment.java
@@ -16,59 +16,63 @@
 import io.reactivex.disposables.Disposable;
 import io.reactivex.processors.PublishProcessor;
 
-
 import static android.text.TextUtils.isEmpty;
 
-public class DoubleBindingTextViewFragment
-      extends BaseFragment {
+public class DoubleBindingTextViewFragment extends BaseFragment {
 
-    @BindView(R.id.double_binding_num1) EditText _number1;
-    @BindView(R.id.double_binding_num2) EditText _number2;
-    @BindView(R.id.double_binding_result) TextView _result;
+  @BindView(R.id.double_binding_num1)
+  EditText _number1;
 
-    Disposable _disposable;
-    PublishProcessor<Float> _resultEmitterSubject;
-    private Unbinder unbinder;
+  @BindView(R.id.double_binding_num2)
+  EditText _number2;
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
-        unbinder = ButterKnife.bind(this, layout);
+  @BindView(R.id.double_binding_result)
+  TextView _result;
 
-        _resultEmitterSubject = PublishProcessor.create();
+  Disposable _disposable;
+  PublishProcessor<Float> _resultEmitterSubject;
+  private Unbinder unbinder;
 
-        _disposable = _resultEmitterSubject.subscribe(aFloat -> {
-            _result.setText(String.valueOf(aFloat));
-        });
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_double_binding_textview, container, false);
+    unbinder = ButterKnife.bind(this, layout);
 
-        onNumberChanged();
-        _number2.requestFocus();
+    _resultEmitterSubject = PublishProcessor.create();
 
-        return layout;
-    }
+    _disposable =
+        _resultEmitterSubject.subscribe(
+            aFloat -> {
+              _result.setText(String.valueOf(aFloat));
+            });
 
-    @OnTextChanged({R.id.double_binding_num1, R.id.double_binding_num2})
-    public void onNumberChanged() {
-        float num1 = 0;
-        float num2 = 0;
+    onNumberChanged();
+    _number2.requestFocus();
 
-        if (!isEmpty(_number1.getText().toString())) {
-            num1 = Float.parseFloat(_number1.getText().toString());
-        }
+    return layout;
+  }
 
-        if (!isEmpty(_number2.getText().toString())) {
-            num2 = Float.parseFloat(_number2.getText().toString());
-        }
+  @OnTextChanged({R.id.double_binding_num1, R.id.double_binding_num2})
+  public void onNumberChanged() {
+    float num1 = 0;
+    float num2 = 0;
 
-        _resultEmitterSubject.onNext(num1 + num2);
+    if (!isEmpty(_number1.getText().toString())) {
+      num1 = Float.parseFloat(_number1.getText().toString());
     }
 
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        _disposable.dispose();
-        unbinder.unbind();
+    if (!isEmpty(_number2.getText().toString())) {
+      num2 = Float.parseFloat(_number2.getText().toString());
     }
+
+    _resultEmitterSubject.onNext(num1 + num2);
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    _disposable.dispose();
+    unbinder.unbind();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index 89d7a0f8..0516b934 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -27,203 +27,210 @@
 import rx.observables.MathObservable;
 import timber.log.Timber;
 
-
 import static android.os.Looper.getMainLooper;
 
-public class ExponentialBackoffFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_threading_log) ListView _logList;
-    private LogAdapter _adapter;
-    private CompositeDisposable _disposables = new CompositeDisposable();
-    private List<String> _logs;
-    Unbinder unbinder;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_exponential_backoff, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-
-        _disposables.clear();
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    // -----------------------------------------------------------------------------------
-
-    @OnClick(R.id.btn_eb_retry)
-    public void startRetryingWithExponentialBackoffStrategy() {
-        _logs = new ArrayList<>();
-        _adapter.clear();
-
-        DisposableSubscriber<Object> disposableSubscriber = new DisposableSubscriber<Object>() {
-            @Override
-            public void onNext(Object aVoid) {
-                Timber.d("on Next");
-            }
-
-            @Override
-            public void onComplete() {
-                Timber.d("on Completed");
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                _log("Error: I give up!");
-            }
+public class ExponentialBackoffFragment extends BaseFragment {
+
+  @BindView(R.id.list_threading_log)
+  ListView _logList;
+
+  private LogAdapter _adapter;
+  private CompositeDisposable _disposables = new CompositeDisposable();
+  private List<String> _logs;
+  Unbinder unbinder;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_exponential_backoff, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+
+    _disposables.clear();
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  // -----------------------------------------------------------------------------------
+
+  @OnClick(R.id.btn_eb_retry)
+  public void startRetryingWithExponentialBackoffStrategy() {
+    _logs = new ArrayList<>();
+    _adapter.clear();
+
+    DisposableSubscriber<Object> disposableSubscriber =
+        new DisposableSubscriber<Object>() {
+          @Override
+          public void onNext(Object aVoid) {
+            Timber.d("on Next");
+          }
+
+          @Override
+          public void onComplete() {
+            Timber.d("on Completed");
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            _log("Error: I give up!");
+          }
         };
 
-        Flowable.error(new RuntimeException("testing")) // always fails
-                .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext
-                // values sent are ignored)
-                .doOnSubscribe(subscription -> _log("Attempting the impossible 5 times in intervals of 1s"))
-                .subscribe(disposableSubscriber);
-
-        _disposables.add(disposableSubscriber);
-    }
-
-    @OnClick(R.id.btn_eb_delay)
-    public void startExecutingWithExponentialBackoffDelay() {
-
-        _logs = new ArrayList<>();
-        _adapter.clear();
-
-        DisposableSubscriber<Integer> disposableSubscriber = new DisposableSubscriber<Integer>() {
-            @Override
-            public void onNext(Integer integer) {
-                Timber.d("executing Task %d [xx:%02d]", integer, _getSecondHand());
-                _log(String.format("executing Task %d  [xx:%02d]", integer, _getSecondHand()));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.d(e, "arrrr. Error");
-                _log("Error");
-            }
-
-            @Override
-            public void onComplete() {
-                Timber.d("onCompleted");
-                _log("Completed");
-            }
+    Flowable.error(new RuntimeException("testing")) // always fails
+        .retryWhen(new RetryWithDelay(5, 1000)) // notice this is called only onError (onNext
+        // values sent are ignored)
+        .doOnSubscribe(subscription -> _log("Attempting the impossible 5 times in intervals of 1s"))
+        .subscribe(disposableSubscriber);
+
+    _disposables.add(disposableSubscriber);
+  }
+
+  @OnClick(R.id.btn_eb_delay)
+  public void startExecutingWithExponentialBackoffDelay() {
+
+    _logs = new ArrayList<>();
+    _adapter.clear();
+
+    DisposableSubscriber<Integer> disposableSubscriber =
+        new DisposableSubscriber<Integer>() {
+          @Override
+          public void onNext(Integer integer) {
+            Timber.d("executing Task %d [xx:%02d]", integer, _getSecondHand());
+            _log(String.format("executing Task %d  [xx:%02d]", integer, _getSecondHand()));
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.d(e, "arrrr. Error");
+            _log("Error");
+          }
+
+          @Override
+          public void onComplete() {
+            Timber.d("onCompleted");
+            _log("Completed");
+          }
         };
 
-        Flowable
-              .range(1, 4)
-              .delay(integer -> {
-                  // Rx-y way of doing the Fibonnaci :P
-                  return RxJavaInterop
-                        .toV2Flowable(MathObservable.sumInteger(rx.Observable.range(1, integer)))
-                        .flatMap(targetSecondDelay -> Flowable
-                              .just(integer)
-                              .delay(targetSecondDelay, TimeUnit.SECONDS));
-              })
-              .doOnSubscribe(s -> _log(String.format("Execute 4 tasks with delay - time now: [xx:%02d]",
-                                                     _getSecondHand())))
-              .subscribe(disposableSubscriber);
-
-        _disposables.add(disposableSubscriber);
-    }
+    Flowable.range(1, 4)
+        .delay(
+            integer -> {
+              // Rx-y way of doing the Fibonnaci :P
+              return RxJavaInterop.toV2Flowable(
+                      MathObservable.sumInteger(rx.Observable.range(1, integer)))
+                  .flatMap(
+                      targetSecondDelay ->
+                          Flowable.just(integer).delay(targetSecondDelay, TimeUnit.SECONDS));
+            })
+        .doOnSubscribe(
+            s ->
+                _log(
+                    String.format(
+                        "Execute 4 tasks with delay - time now: [xx:%02d]", _getSecondHand())))
+        .subscribe(disposableSubscriber);
+
+    _disposables.add(disposableSubscriber);
+  }
+
+  // -----------------------------------------------------------------------------------
+
+  private int _getSecondHand() {
+    long millis = System.currentTimeMillis();
+    return (int)
+        (TimeUnit.MILLISECONDS.toSeconds(millis)
+            - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
+  }
+
+  // -----------------------------------------------------------------------------------
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+    _logs.add(logMsg);
+
+    // You can only do below stuff on main thread.
+    new Handler(getMainLooper())
+        .post(
+            () -> {
+              _adapter.clear();
+              _adapter.addAll(_logs);
+            });
+  }
 
-    // -----------------------------------------------------------------------------------
+  // -----------------------------------------------------------------------------------
 
-    private int _getSecondHand() {
-        long millis = System.currentTimeMillis();
-        return (int) (TimeUnit.MILLISECONDS.toSeconds(millis) -
-                      TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
-    }
+  // CAUTION:
+  // --------------------------------------
+  // THIS notificationHandler class HAS NO BUSINESS BEING non-static
+  // I ONLY did this cause i wanted access to the `_log` method from inside here
+  // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
 
-    // -----------------------------------------------------------------------------------
+  // It's 12am in the morning and i feel lazy dammit !!!
 
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logList.setAdapter(_adapter);
-    }
+  //public static class RetryWithDelay
+  public class RetryWithDelay implements Function<Flowable<? extends Throwable>, Publisher<?>> {
 
-    private void _log(String logMsg) {
-        _logs.add(logMsg);
+    private final int _maxRetries;
+    private final int _retryDelayMillis;
+    private int _retryCount;
 
-        // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(() -> {
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        });
+    public RetryWithDelay(final int maxRetries, final int retryDelayMillis) {
+      _maxRetries = maxRetries;
+      _retryDelayMillis = retryDelayMillis;
+      _retryCount = 0;
     }
 
-    // -----------------------------------------------------------------------------------
-
-    // CAUTION:
-    // --------------------------------------
-    // THIS notificationHandler class HAS NO BUSINESS BEING non-static
-    // I ONLY did this cause i wanted access to the `_log` method from inside here
-    // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
-
-    // It's 12am in the morning and i feel lazy dammit !!!
-
-    //public static class RetryWithDelay
-    public class RetryWithDelay
-          implements Function<Flowable<? extends Throwable>, Publisher<?>> {
-
-        private final int _maxRetries;
-        private final int _retryDelayMillis;
-        private int _retryCount;
+    // this is a notificationhandler, all that is cared about here
+    // is the emission "type" not emission "content"
+    // only onNext triggers a re-subscription (onError + onComplete kills it)
 
-        public RetryWithDelay(final int maxRetries, final int retryDelayMillis) {
-            _maxRetries = maxRetries;
-            _retryDelayMillis = retryDelayMillis;
-            _retryCount = 0;
-        }
-
-        // this is a notificationhandler, all that is cared about here
-        // is the emission "type" not emission "content"
-        // only onNext triggers a re-subscription (onError + onComplete kills it)
-
-        @Override
-        public Publisher<?> apply(Flowable<? extends Throwable> inputObservable) {
+    @Override
+    public Publisher<?> apply(Flowable<? extends Throwable> inputObservable) {
 
-            // it is critical to use inputObservable in the chain for the result
-            // ignoring it and doing your own thing will break the sequence
+      // it is critical to use inputObservable in the chain for the result
+      // ignoring it and doing your own thing will break the sequence
 
-            return inputObservable.flatMap(new Function<Throwable, Publisher<?>>() {
-                @Override
-                public Publisher<?> apply(Throwable throwable) {
-                    if (++_retryCount < _maxRetries) {
+      return inputObservable.flatMap(
+          new Function<Throwable, Publisher<?>>() {
+            @Override
+            public Publisher<?> apply(Throwable throwable) {
+              if (++_retryCount < _maxRetries) {
 
-                        // When this Observable calls onNext, the original
-                        // Observable will be retried (i.e. re-subscribed)
+                // When this Observable calls onNext, the original
+                // Observable will be retried (i.e. re-subscribed)
 
-                        Timber.d("Retrying in %d ms", _retryCount * _retryDelayMillis);
-                        _log(String.format("Retrying in %d ms", _retryCount * _retryDelayMillis));
+                Timber.d("Retrying in %d ms", _retryCount * _retryDelayMillis);
+                _log(String.format("Retrying in %d ms", _retryCount * _retryDelayMillis));
 
-                        return Flowable.timer(_retryCount * _retryDelayMillis, TimeUnit.MILLISECONDS);
-                    }
+                return Flowable.timer(_retryCount * _retryDelayMillis, TimeUnit.MILLISECONDS);
+              }
 
-                    Timber.d("Argh! i give up");
+              Timber.d("Argh! i give up");
 
-                    // Max retries hit. Pass an error so the chain is forcibly completed
-                    // only onNext triggers a re-subscription (onError + onComplete kills it)
-                    return Flowable.error(throwable);
-                }
-            });
-        }
+              // Max retries hit. Pass an error so the chain is forcibly completed
+              // only onNext triggers a re-subscription (onError + onComplete kills it)
+              return Flowable.error(throwable);
+            }
+          });
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 61c1d17e..07f8972d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -18,107 +18,102 @@
 import io.reactivex.subscribers.DisposableSubscriber;
 import timber.log.Timber;
 
-
 import static android.text.TextUtils.isEmpty;
 import static android.util.Patterns.EMAIL_ADDRESS;
 
-public class FormValidationCombineLatestFragment
-      extends BaseFragment {
-
-    @BindView(R.id.btn_demo_form_valid) TextView _btnValidIndicator;
-    @BindView(R.id.demo_combl_email) EditText _email;
-    @BindView(R.id.demo_combl_password) EditText _password;
-    @BindView(R.id.demo_combl_num) EditText _number;
-
-    private DisposableSubscriber<Boolean> _disposableObserver = null;
-    private Flowable<CharSequence> _emailChangeObservable;
-    private Flowable<CharSequence> _numberChangeObservable;
-    private Flowable<CharSequence> _passwordChangeObservable;
-    private Unbinder unbinder;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-
-        _emailChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
-                .textChanges(_email)
-                .skip(1));
-        _passwordChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
-                .textChanges(_password)
-                .skip(1));
-        _numberChangeObservable = RxJavaInterop.toV2Flowable(RxTextView
-                .textChanges(_number)
-                .skip(1));
-
-        _combineLatestEvents();
-
-        return layout;
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-        _disposableObserver.dispose();
-    }
-
-    private void _combineLatestEvents() {
-
-        _disposableObserver = new DisposableSubscriber<Boolean>() {
-            @Override
-            public void onNext(Boolean formValid) {
-                if (formValid) {
-                    _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
-                }
-                else {
-                    _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
-                }
-            }
+public class FormValidationCombineLatestFragment extends BaseFragment {
 
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "there was an error");
-            }
+  @BindView(R.id.btn_demo_form_valid)
+  TextView _btnValidIndicator;
+
+  @BindView(R.id.demo_combl_email)
+  EditText _email;
+
+  @BindView(R.id.demo_combl_password)
+  EditText _password;
+
+  @BindView(R.id.demo_combl_num)
+  EditText _number;
+
+  private DisposableSubscriber<Boolean> _disposableObserver = null;
+  private Flowable<CharSequence> _emailChangeObservable;
+  private Flowable<CharSequence> _numberChangeObservable;
+  private Flowable<CharSequence> _passwordChangeObservable;
+  private Unbinder unbinder;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
+    unbinder = ButterKnife.bind(this, layout);
 
-            @Override
-            public void onComplete() {
-                Timber.d("completed");
+    _emailChangeObservable = RxJavaInterop.toV2Flowable(RxTextView.textChanges(_email).skip(1));
+    _passwordChangeObservable =
+        RxJavaInterop.toV2Flowable(RxTextView.textChanges(_password).skip(1));
+    _numberChangeObservable = RxJavaInterop.toV2Flowable(RxTextView.textChanges(_number).skip(1));
+
+    _combineLatestEvents();
+
+    return layout;
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+    _disposableObserver.dispose();
+  }
+
+  private void _combineLatestEvents() {
+
+    _disposableObserver =
+        new DisposableSubscriber<Boolean>() {
+          @Override
+          public void onNext(Boolean formValid) {
+            if (formValid) {
+              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
+            } else {
+              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
             }
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "there was an error");
+          }
+
+          @Override
+          public void onComplete() {
+            Timber.d("completed");
+          }
         };
 
-        Flowable
-              .combineLatest(_emailChangeObservable,
-                             _passwordChangeObservable,
-                             _numberChangeObservable,
-                             (newEmail, newPassword, newNumber) -> {
-
-                                 boolean emailValid = !isEmpty(newEmail) &&
-                                                      EMAIL_ADDRESS
-                                                            .matcher(newEmail)
-                                                            .matches();
-                                 if (!emailValid) {
-                                     _email.setError("Invalid Email!");
-                                 }
-
-                                 boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
-                                 if (!passValid) {
-                                     _password.setError("Invalid Password!");
-                                 }
-
-                                 boolean numValid = !isEmpty(newNumber);
-                                 if (numValid) {
-                                     int num = Integer.parseInt(newNumber.toString());
-                                     numValid = num > 0 && num <= 100;
-                                 }
-                                 if (!numValid) {
-                                     _number.setError("Invalid Number!");
-                                 }
-
-                                 return emailValid && passValid && numValid;
-                             })
-              .subscribe(_disposableObserver);
-    }
+    Flowable.combineLatest(
+            _emailChangeObservable,
+            _passwordChangeObservable,
+            _numberChangeObservable,
+            (newEmail, newPassword, newNumber) -> {
+              boolean emailValid = !isEmpty(newEmail) && EMAIL_ADDRESS.matcher(newEmail).matches();
+              if (!emailValid) {
+                _email.setError("Invalid Email!");
+              }
+
+              boolean passValid = !isEmpty(newPassword) && newPassword.length() > 8;
+              if (!passValid) {
+                _password.setError("Invalid Password!");
+              }
+
+              boolean numValid = !isEmpty(newNumber);
+              if (numValid) {
+                int num = Integer.parseInt(newNumber.toString());
+                numValid = num > 0 && num <= 100;
+              }
+              if (!numValid) {
+                _number.setError("Invalid Number!");
+              }
+
+              return emailValid && passValid && numValid;
+            })
+        .subscribe(_disposableObserver);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index 99cb52af..c09925be 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -16,113 +16,113 @@
 import com.morihacky.android.rxjava.rxbus.RxBusDemoFragment;
 import com.morihacky.android.rxjava.volley.VolleyDemoFragment;
 
-public class MainFragment
-      extends BaseFragment {
-
-    private Unbinder unbinder;
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_main, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    @OnClick(R.id.btn_demo_schedulers)
-    void demoConcurrencyWithSchedulers() {
-        clickedOn(new ConcurrencyWithSchedulersDemoFragment());
-    }
-
-    @OnClick(R.id.btn_demo_buffer)
-    void demoBuffer() {
-        clickedOn(new BufferDemoFragment());
-    }
-
-    @OnClick(R.id.btn_demo_debounce)
-    void demoThrottling() {
-        clickedOn(new DebounceSearchEmitterFragment());
-    }
-
-    @OnClick(R.id.btn_demo_retrofit)
-    void demoRetrofitCalls() {
-        clickedOn(new RetrofitFragment());
-    }
-
-    @OnClick(R.id.btn_demo_polling)
-    void demoPolling() {
-        clickedOn(new PollingFragment());
-    }
-
-    @OnClick(R.id.btn_demo_double_binding_textview)
-    void demoDoubleBindingWithPublishSubject() {
-        clickedOn(new DoubleBindingTextViewFragment());
-    }
-
-    @OnClick(R.id.btn_demo_rxbus)
-    void demoRxBus() {
-        clickedOn(new RxBusDemoFragment());
-    }
-
-    @OnClick(R.id.btn_demo_form_validation_combinel)
-    void formValidation() {
-        clickedOn(new FormValidationCombineLatestFragment());
-    }
-
-    @OnClick(R.id.btn_demo_pseudo_cache)
-    void pseudoCacheDemo() {
-        clickedOn(new PseudoCacheFragment());
-    }
-
-    @OnClick(R.id.btn_demo_timing)
-    void demoTimerIntervalDelays() {
-        clickedOn(new TimingDemoFragment());
-    }
-
-    @OnClick(R.id.btn_demo_timeout)
-    void demoTimeout() {
-        clickedOn(new TimeoutDemoFragment());
-    }
-
-    @OnClick(R.id.btn_demo_exponential_backoff)
-    void demoExponentialBackoff() {
-        clickedOn(new ExponentialBackoffFragment());
-    }
-
-    @OnClick(R.id.btn_demo_rotation_persist)
-    void demoRotationPersist() {
-        clickedOn(new RotationPersist2Fragment());
-        //clickedOn(new RotationPersist1Fragment());
-    }
-
-    @OnClick(R.id.btn_demo_pagination)
-    void demoPaging() {
-        clickedOn(new PaginationAutoFragment());
-        //clickedOn(new PaginationFragment());
-    }
-
-    @OnClick(R.id.btn_demo_volley)
-    void demoVolleyRequest() {
-        clickedOn(new VolleyDemoFragment());
-    }
-
-    @OnClick(R.id.btn_demo_networkDetector)
-    void demoNetworkDetector() {
-        clickedOn(new NetworkDetectorFragment());
-    }
-
-    private void clickedOn(@NonNull Fragment fragment) {
-        final String tag = fragment.getClass().toString();
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .addToBackStack(tag)
-              .replace(android.R.id.content, fragment, tag)
-              .commit();
-    }
+public class MainFragment extends BaseFragment {
+
+  private Unbinder unbinder;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_main, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  @OnClick(R.id.btn_demo_schedulers)
+  void demoConcurrencyWithSchedulers() {
+    clickedOn(new ConcurrencyWithSchedulersDemoFragment());
+  }
+
+  @OnClick(R.id.btn_demo_buffer)
+  void demoBuffer() {
+    clickedOn(new BufferDemoFragment());
+  }
+
+  @OnClick(R.id.btn_demo_debounce)
+  void demoThrottling() {
+    clickedOn(new DebounceSearchEmitterFragment());
+  }
+
+  @OnClick(R.id.btn_demo_retrofit)
+  void demoRetrofitCalls() {
+    clickedOn(new RetrofitFragment());
+  }
+
+  @OnClick(R.id.btn_demo_polling)
+  void demoPolling() {
+    clickedOn(new PollingFragment());
+  }
+
+  @OnClick(R.id.btn_demo_double_binding_textview)
+  void demoDoubleBindingWithPublishSubject() {
+    clickedOn(new DoubleBindingTextViewFragment());
+  }
+
+  @OnClick(R.id.btn_demo_rxbus)
+  void demoRxBus() {
+    clickedOn(new RxBusDemoFragment());
+  }
+
+  @OnClick(R.id.btn_demo_form_validation_combinel)
+  void formValidation() {
+    clickedOn(new FormValidationCombineLatestFragment());
+  }
+
+  @OnClick(R.id.btn_demo_pseudo_cache)
+  void pseudoCacheDemo() {
+    clickedOn(new PseudoCacheFragment());
+  }
+
+  @OnClick(R.id.btn_demo_timing)
+  void demoTimerIntervalDelays() {
+    clickedOn(new TimingDemoFragment());
+  }
+
+  @OnClick(R.id.btn_demo_timeout)
+  void demoTimeout() {
+    clickedOn(new TimeoutDemoFragment());
+  }
+
+  @OnClick(R.id.btn_demo_exponential_backoff)
+  void demoExponentialBackoff() {
+    clickedOn(new ExponentialBackoffFragment());
+  }
+
+  @OnClick(R.id.btn_demo_rotation_persist)
+  void demoRotationPersist() {
+    clickedOn(new RotationPersist2Fragment());
+    //clickedOn(new RotationPersist1Fragment());
+  }
+
+  @OnClick(R.id.btn_demo_pagination)
+  void demoPaging() {
+    clickedOn(new PaginationAutoFragment());
+    //clickedOn(new PaginationFragment());
+  }
+
+  @OnClick(R.id.btn_demo_volley)
+  void demoVolleyRequest() {
+    clickedOn(new VolleyDemoFragment());
+  }
+
+  @OnClick(R.id.btn_demo_networkDetector)
+  void demoNetworkDetector() {
+    clickedOn(new NetworkDetectorFragment());
+  }
+
+  private void clickedOn(@NonNull Fragment fragment) {
+    final String tag = fragment.getClass().toString();
+    getActivity()
+        .getSupportFragmentManager()
+        .beginTransaction()
+        .addToBackStack(tag)
+        .replace(android.R.id.content, fragment, tag)
+        .commit();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
index 6ed8ee77..af1392d4 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/NetworkDetectorFragment.java
@@ -26,124 +26,126 @@
 import java.util.ArrayList;
 import java.util.List;
 
-public class NetworkDetectorFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_threading_log) ListView logsList;
-
-    private LogAdapter adapter;
-    private BroadcastReceiver broadcastReceiver;
-    private List<String> logs;
-    private Disposable disposable;
-    private PublishProcessor<Boolean> publishProcessor;
-    private Unbinder unbinder;
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        unbinder.unbind();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_network_detector, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        setupLogger();
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-
-        publishProcessor = PublishProcessor.create();
-
-        disposable = publishProcessor
-              .startWith(getConnectivityStatus(getActivity()))
-              .distinctUntilChanged()
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(online -> {
+public class NetworkDetectorFragment extends BaseFragment {
+
+  @BindView(R.id.list_threading_log)
+  ListView logsList;
+
+  private LogAdapter adapter;
+  private BroadcastReceiver broadcastReceiver;
+  private List<String> logs;
+  private Disposable disposable;
+  private PublishProcessor<Boolean> publishProcessor;
+  private Unbinder unbinder;
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    unbinder.unbind();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_network_detector, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    setupLogger();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+
+    publishProcessor = PublishProcessor.create();
+
+    disposable =
+        publishProcessor
+            .startWith(getConnectivityStatus(getActivity()))
+            .distinctUntilChanged()
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe(
+                online -> {
                   if (online) {
-                      log("You are online");
-                  }
-                  else {
-                      log("You are offline");
+                    log("You are online");
+                  } else {
+                    log("You are offline");
                   }
-              });
+                });
 
-        listenToNetworkConnectivity();
-    }
+    listenToNetworkConnectivity();
+  }
 
-    @Override
-    public void onStop() {
-        super.onStop();
+  @Override
+  public void onStop() {
+    super.onStop();
 
-        disposable.dispose();
-        getActivity().unregisterReceiver(broadcastReceiver);
-    }
+    disposable.dispose();
+    getActivity().unregisterReceiver(broadcastReceiver);
+  }
 
-    private void listenToNetworkConnectivity() {
+  private void listenToNetworkConnectivity() {
 
-        broadcastReceiver = new BroadcastReceiver() {
-            @Override
-            public void onReceive(Context context, Intent intent) {
-                publishProcessor.onNext(getConnectivityStatus(context));
-            }
+    broadcastReceiver =
+        new BroadcastReceiver() {
+          @Override
+          public void onReceive(Context context, Intent intent) {
+            publishProcessor.onNext(getConnectivityStatus(context));
+          }
         };
 
-        final IntentFilter intentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
-        getActivity().registerReceiver(broadcastReceiver, intentFilter);
-    }
-
-    private boolean getConnectivityStatus(Context context) {
-        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
-        NetworkInfo networkInfo = cm.getActiveNetworkInfo();
-        return networkInfo != null && networkInfo.isConnected();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    private void log(String logMsg) {
-
-        if (isCurrentlyOnMainThread()) {
-            logs.add(0, logMsg + " (main thread) ");
-            adapter.clear();
-            adapter.addAll(logs);
-        }
-        else {
-            logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+    final IntentFilter intentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
+    getActivity().registerReceiver(broadcastReceiver, intentFilter);
+  }
+
+  private boolean getConnectivityStatus(Context context) {
+    ConnectivityManager cm =
+        (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+    NetworkInfo networkInfo = cm.getActiveNetworkInfo();
+    return networkInfo != null && networkInfo.isConnected();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void log(String logMsg) {
+
+    if (isCurrentlyOnMainThread()) {
+      logs.add(0, logMsg + " (main thread) ");
+      adapter.clear();
+      adapter.addAll(logs);
+    } else {
+      logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 adapter.clear();
                 adapter.addAll(logs);
-            });
-        }
+              });
     }
+  }
 
-    private void setupLogger() {
-        logs = new ArrayList<>();
-        adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        logsList.setAdapter(adapter);
-    }
+  private void setupLogger() {
+    logs = new ArrayList<>();
+    adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    logsList.setAdapter(adapter);
+  }
 
-    private boolean isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-          extends ArrayAdapter<String> {
+  private class LogAdapter extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
index 2cac3942..6af2f8a0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
@@ -26,116 +26,116 @@
 import java.util.concurrent.TimeUnit;
 import timber.log.Timber;
 
-public class PlaygroundFragment
-      extends BaseFragment {
-
-    @BindView(R.id.progress_operation_running) ProgressBar _progress;
-    @BindView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private int _attempt = 0;
-    private List<String> _logs;
-    private Unbinder unbinder;
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        unbinder.unbind();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
+public class PlaygroundFragment extends BaseFragment {
+
+  @BindView(R.id.progress_operation_running)
+  ProgressBar _progress;
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  private LogAdapter _adapter;
+  private int _attempt = 0;
+  private List<String> _logs;
+  private Unbinder unbinder;
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    unbinder.unbind();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @OnClick(R.id.btn_start_operation)
+  public void startOperation() {
+
+    _logs.clear();
+    _log("Button Clicked");
+
+    Observable.fromIterable(
+            Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l")) //
+        .flatMap(
+            s1 -> {
+              _log(s1 + "start");
+
+              if (s1.equalsIgnoreCase("b") && _attempt < 5) {
+                _attempt++;
+                return Observable.error(
+                    new Throwable("b can't be processed (" + (_attempt - 1) + ")"));
+              }
+
+              if (s1.equalsIgnoreCase("c") || s1.equalsIgnoreCase("f")) {
+                return Observable.just(s1);
+              } else {
+                return Observable.timer(2, TimeUnit.SECONDS).map(l -> s1);
+              }
+            })
+        .retryWhen(source -> source.delay(8, TimeUnit.SECONDS))
+        .doOnNext(s -> _log(s + "stop"))
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _doSomeLongOperation_thatBlocksCurrentThread() {
+    _log("performing long operation");
+
+    try {
+      Thread.sleep(3000);
+    } catch (InterruptedException e) {
+      Timber.d("Operation was interrupted");
     }
+  }
 
-    @OnClick(R.id.btn_start_operation)
-    public void startOperation() {
-
-        _logs.clear();
-        _log("Button Clicked");
-
-        Observable.fromIterable(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"))//
-                  .flatMap(s1 -> {
-
-                      _log(s1 + "start");
-
-                      if (s1.equalsIgnoreCase("b") && _attempt < 5) {
-                          _attempt++;
-                          return Observable.error(new Throwable("b can't be processed (" + (_attempt - 1) + ")"));
-                      }
-
-                      if (s1.equalsIgnoreCase("c") || s1.equalsIgnoreCase("f")) {
-                          return Observable.just(s1);
-                      }
-                      else {
-                          return Observable
-                                .timer(2, TimeUnit.SECONDS)
-                                .map(l -> s1);
-                      }
-                  })
-                  .retryWhen(source -> source.delay(8, TimeUnit.SECONDS))
-                  .doOnNext(s -> _log(s + "stop"))
-                  .subscribeOn(Schedulers.io())
-                  .observeOn(AndroidSchedulers.mainThread())
-                  .subscribe();
-    }
+  private void _log(String logMsg) {
 
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
 
-    private void _doSomeLongOperation_thatBlocksCurrentThread() {
-        _log("performing long operation");
-
-        try {
-            Thread.sleep(3000);
-        } catch (InterruptedException e) {
-            Timber.d("Operation was interrupted");
-        }
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        }
-        else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 _adapter.clear();
                 _adapter.addAll(_logs);
-            });
-        }
+              });
     }
+  }
 
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    private class LogAdapter
-          extends ArrayAdapter<String> {
+  private class LogAdapter extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
index 1d320fa9..5eb8b187 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PollingFragment.java
@@ -27,202 +27,211 @@
 import org.reactivestreams.Publisher;
 import timber.log.Timber;
 
-public class PollingFragment
-      extends BaseFragment {
-
-    private static final int INITIAL_DELAY = 0;
-    private static final int POLLING_INTERVAL = 1000;
-    private static final int POLL_COUNT = 8;
-
-    @BindView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private int _counter = 0;
-    private CompositeDisposable _disposables;
-    private List<String> _logs;
-    private Unbinder unbinder;
-
-    @Override
-    public void onCreate(@Nullable Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        _disposables = new CompositeDisposable();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_polling, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _disposables.clear();
-        unbinder.unbind();
-    }
-
-    @OnClick(R.id.btn_start_simple_polling)
-    public void onStartSimplePollingClicked() {
-
-        final int pollCount = POLL_COUNT;
-
-        Disposable d = Flowable
-              .interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
-              .map(this::_doNetworkCallAndGetStringResult)
-              .take(pollCount)
-              .doOnSubscribe(subscription -> {
+public class PollingFragment extends BaseFragment {
+
+  private static final int INITIAL_DELAY = 0;
+  private static final int POLLING_INTERVAL = 1000;
+  private static final int POLL_COUNT = 8;
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  private LogAdapter _adapter;
+  private int _counter = 0;
+  private CompositeDisposable _disposables;
+  private List<String> _logs;
+  private Unbinder unbinder;
+
+  @Override
+  public void onCreate(@Nullable Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    _disposables = new CompositeDisposable();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_polling, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _disposables.clear();
+    unbinder.unbind();
+  }
+
+  @OnClick(R.id.btn_start_simple_polling)
+  public void onStartSimplePollingClicked() {
+
+    final int pollCount = POLL_COUNT;
+
+    Disposable d =
+        Flowable.interval(INITIAL_DELAY, POLLING_INTERVAL, TimeUnit.MILLISECONDS)
+            .map(this::_doNetworkCallAndGetStringResult)
+            .take(pollCount)
+            .doOnSubscribe(
+                subscription -> {
                   _log(String.format("Start simple polling - %s", _counter));
-              })
-              .subscribe(taskName -> {
-                  _log(String.format(Locale.US,
-                                     "Executing polled task [%s] now time : [xx:%02d]",
-                                     taskName,
-                                     _getSecondHand()));
-              });
-
-        _disposables.add(d);
+                })
+            .subscribe(
+                taskName -> {
+                  _log(
+                      String.format(
+                          Locale.US,
+                          "Executing polled task [%s] now time : [xx:%02d]",
+                          taskName,
+                          _getSecondHand()));
+                });
+
+    _disposables.add(d);
+  }
+
+  @OnClick(R.id.btn_start_increasingly_delayed_polling)
+  public void onStartIncreasinglyDelayedPolling() {
+    _setupLogger();
+
+    final int pollingInterval = POLLING_INTERVAL;
+    final int pollCount = POLL_COUNT;
+
+    _log(
+        String.format(
+            Locale.US, "Start increasingly delayed polling now time: [xx:%02d]", _getSecondHand()));
+
+    _disposables.add(
+        Flowable.just(1L)
+            .repeatWhen(new RepeatWithDelay(pollCount, pollingInterval))
+            .subscribe(
+                o ->
+                    _log(
+                        String.format(
+                            Locale.US,
+                            "Executing polled task now time : [xx:%02d]",
+                            _getSecondHand())),
+                e -> Timber.d(e, "arrrr. Error")));
+  }
+
+  // -----------------------------------------------------------------------------------
+
+  // CAUTION:
+  // --------------------------------------
+  // THIS notificationHandler class HAS NO BUSINESS BEING non-static
+  // I ONLY did this cause i wanted access to the `_log` method from inside here
+  // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
+
+  // It's 12am in the morning and i feel lazy dammit !!!
+
+  private String _doNetworkCallAndGetStringResult(long attempt) {
+    try {
+      if (attempt == 4) {
+        // randomly make one event super long so we test that the repeat logic waits
+        // and accounts for this.
+        Thread.sleep(9000);
+      } else {
+        Thread.sleep(3000);
+      }
+
+    } catch (InterruptedException e) {
+      Timber.d("Operation was interrupted");
     }
-
-    @OnClick(R.id.btn_start_increasingly_delayed_polling)
-    public void onStartIncreasinglyDelayedPolling() {
-        _setupLogger();
-
-        final int pollingInterval = POLLING_INTERVAL;
-        final int pollCount = POLL_COUNT;
-
-        _log(String.format(Locale.US, "Start increasingly delayed polling now time: [xx:%02d]", _getSecondHand()));
-
-        _disposables.add(Flowable
-                               .just(1L)
-                               .repeatWhen(new RepeatWithDelay(pollCount, pollingInterval))
-                               .subscribe(o -> _log(String.format(Locale.US,
-                                                                  "Executing polled task now time : [xx:%02d]",
-                                                                  _getSecondHand())),
-                                          e -> Timber.d(e, "arrrr. Error")));
+    _counter++;
+
+    return String.valueOf(_counter);
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private int _getSecondHand() {
+    long millis = System.currentTimeMillis();
+    return (int)
+        (TimeUnit.MILLISECONDS.toSeconds(millis)
+            - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
+  }
+
+  private void _log(String logMsg) {
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
+                _adapter.clear();
+                _adapter.addAll(_logs);
+              });
     }
+  }
 
-    // -----------------------------------------------------------------------------------
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+    _counter = 0;
+  }
 
-    // CAUTION:
-    // --------------------------------------
-    // THIS notificationHandler class HAS NO BUSINESS BEING non-static
-    // I ONLY did this cause i wanted access to the `_log` method from inside here
-    // for the purpose of demonstration. In the real world, make it static and LET IT BE!!
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 
-    // It's 12am in the morning and i feel lazy dammit !!!
+  //public static class RepeatWithDelay
+  public class RepeatWithDelay implements Function<Flowable<Object>, Publisher<Long>> {
 
-    private String _doNetworkCallAndGetStringResult(long attempt) {
-        try {
-            if (attempt == 4) {
-                // randomly make one event super long so we test that the repeat logic waits
-                // and accounts for this.
-                Thread.sleep(9000);
-            }
-            else {
-                Thread.sleep(3000);
-            }
-
-        } catch (InterruptedException e) {
-            Timber.d("Operation was interrupted");
-        }
-        _counter++;
+    private final int _repeatLimit;
+    private final int _pollingInterval;
+    private int _repeatCount = 1;
 
-        return String.valueOf(_counter);
+    RepeatWithDelay(int repeatLimit, int pollingInterval) {
+      _pollingInterval = pollingInterval;
+      _repeatLimit = repeatLimit;
     }
 
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    private int _getSecondHand() {
-        long millis = System.currentTimeMillis();
-        return (int) (TimeUnit.MILLISECONDS.toSeconds(millis) -
-                      TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
-    }
+    // this is a notificationhandler, all we care about is
+    // the emission "type" not emission "content"
+    // only onNext triggers a re-subscription
 
-    private void _log(String logMsg) {
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        }
-        else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
-                _adapter.clear();
-                _adapter.addAll(_logs);
-            });
-        }
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-        _counter = 0;
-    }
-
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
-
-    //public static class RepeatWithDelay
-    public class RepeatWithDelay
-          implements Function<Flowable<Object>, Publisher<Long>> {
-
-        private final int _repeatLimit;
-        private final int _pollingInterval;
-        private int _repeatCount = 1;
-
-        RepeatWithDelay(int repeatLimit, int pollingInterval) {
-            _pollingInterval = pollingInterval;
-            _repeatLimit = repeatLimit;
-        }
-
-        // this is a notificationhandler, all we care about is
-        // the emission "type" not emission "content"
-        // only onNext triggers a re-subscription
-
-        @Override
-        public Publisher<Long> apply(Flowable<Object> inputFlowable) throws Exception {
-            // it is critical to use inputObservable in the chain for the result
-            // ignoring it and doing your own thing will break the sequence
-
-            return inputFlowable.flatMap(new Function<Object, Publisher<Long>>() {
-                @Override
-                public Publisher<Long> apply(Object o) throws Exception {
-                    if (_repeatCount >= _repeatLimit) {
-                        // terminate the sequence cause we reached the limit
-                        _log("Completing sequence");
-                        return Flowable.empty();
-                    }
-
-                    // since we don't get an input
-                    // we store state in this handler to tell us the point of time we're firing
-                    _repeatCount++;
-
-                    return Flowable.timer(_repeatCount * _pollingInterval, TimeUnit.MILLISECONDS);
-                }
-            });
-        }
+    @Override
+    public Publisher<Long> apply(Flowable<Object> inputFlowable) throws Exception {
+      // it is critical to use inputObservable in the chain for the result
+      // ignoring it and doing your own thing will break the sequence
+
+      return inputFlowable.flatMap(
+          new Function<Object, Publisher<Long>>() {
+            @Override
+            public Publisher<Long> apply(Object o) throws Exception {
+              if (_repeatCount >= _repeatLimit) {
+                // terminate the sequence cause we reached the limit
+                _log("Completing sequence");
+                return Flowable.empty();
+              }
+
+              // since we don't get an input
+              // we store state in this handler to tell us the point of time we're firing
+              _repeatCount++;
+
+              return Flowable.timer(_repeatCount * _pollingInterval, TimeUnit.MILLISECONDS);
+            }
+          });
     }
+  }
 
-    private class LogAdapter
-          extends ArrayAdapter<String> {
+  private class LogAdapter extends ArrayAdapter<String> {
 
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
+    public LogAdapter(Context context, List<String> logs) {
+      super(context, R.layout.item_log, R.id.item_log, logs);
     }
-}
\ No newline at end of file
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
index 873794d1..a214ce41 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheFragment.java
@@ -32,279 +32,301 @@
 import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
-public class PseudoCacheFragment
-      extends BaseFragment {
-
-    @BindView(R.id.info_pseudoCache_demo) TextView infoText;
-    @BindView(R.id.info_pseudoCache_listSubscription) ListView listSubscriptionInfo;
-    @BindView(R.id.info_pseudoCache_listDtl) ListView listDetail;
-
-    private ArrayAdapter<String> adapterDetail, adapterSubscriptionInfo;
-    private HashMap<String, Long> contributionMap = null;
-    private Unbinder unbinder;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_pseudo_cache, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
+public class PseudoCacheFragment extends BaseFragment {
+
+  @BindView(R.id.info_pseudoCache_demo)
+  TextView infoText;
+
+  @BindView(R.id.info_pseudoCache_listSubscription)
+  ListView listSubscriptionInfo;
+
+  @BindView(R.id.info_pseudoCache_listDtl)
+  ListView listDetail;
+
+  private ArrayAdapter<String> adapterDetail, adapterSubscriptionInfo;
+  private HashMap<String, Long> contributionMap = null;
+  private Unbinder unbinder;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_pseudo_cache, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  @OnClick(R.id.btn_pseudoCache_concat)
+  public void onConcatBtnClicked() {
+    infoText.setText(R.string.msg_pseudoCache_demoInfo_concat);
+    wireupDemo();
+
+    Observable.concat(getSlowCachedDiskData(), getFreshNetworkData())
+        .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Contributor>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Contributor contributor) {
+                contributionMap.put(contributor.login, contributor.contributions);
+                adapterDetail.clear();
+                adapterDetail.addAll(mapAsList(contributionMap));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_pseudoCache_concatEager)
+  public void onConcatEagerBtnClicked() {
+    infoText.setText(R.string.msg_pseudoCache_demoInfo_concatEager);
+    wireupDemo();
+
+    List<Observable<Contributor>> observables = new ArrayList<>(2);
+    observables.add(getSlowCachedDiskData());
+    observables.add(getFreshNetworkData());
+
+    Observable.concatEager(observables)
+        .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Contributor>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Contributor contributor) {
+                contributionMap.put(contributor.login, contributor.contributions);
+                adapterDetail.clear();
+                adapterDetail.addAll(mapAsList(contributionMap));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_pseudoCache_merge)
+  public void onMergeBtnClicked() {
+    infoText.setText(R.string.msg_pseudoCache_demoInfo_merge);
+    wireupDemo();
+
+    Observable.merge(getCachedDiskData(), getFreshNetworkData())
+        .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Contributor>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Contributor contributor) {
+                contributionMap.put(contributor.login, contributor.contributions);
+                adapterDetail.clear();
+                adapterDetail.addAll(mapAsList(contributionMap));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_pseudoCache_mergeSlowDisk)
+  public void onMergeSlowBtnClicked() {
+    infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeSlowDisk);
+    wireupDemo();
+
+    Observable.merge(getSlowCachedDiskData(), getFreshNetworkData())
+        .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Contributor>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Contributor contributor) {
+                contributionMap.put(contributor.login, contributor.contributions);
+                adapterDetail.clear();
+                adapterDetail.addAll(mapAsList(contributionMap));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_pseudoCache_mergeOptimized)
+  public void onMergeOptimizedBtnClicked() {
+    infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeOptimized);
+    wireupDemo();
+
+    getFreshNetworkData() //
+        .publish(
+            network -> //
+            Observable.merge(
+                    network, //
+                    getCachedDiskData().takeUntil(network)))
+        .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Contributor>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Contributor contributor) {
+                contributionMap.put(contributor.login, contributor.contributions);
+                adapterDetail.clear();
+                adapterDetail.addAll(mapAsList(contributionMap));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_pseudoCache_mergeOptimizedSlowDisk)
+  public void onMergeOptimizedWithSlowDiskBtnClicked() {
+    infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeOptimizedSlowDisk);
+    wireupDemo();
+
+    getFreshNetworkData() //
+        .publish(
+            network -> //
+            Observable.merge(
+                    network, //
+                    getSlowCachedDiskData().takeUntil(network)))
+        .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Contributor>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Contributor contributor) {
+                contributionMap.put(contributor.login, contributor.contributions);
+                adapterDetail.clear();
+                adapterDetail.addAll(mapAsList(contributionMap));
+              }
+            });
+  }
+
+  // -----------------------------------------------------------------------------------
+  // WIRING for example
+
+  private void wireupDemo() {
+    contributionMap = new HashMap<>();
+
+    adapterDetail =
+        new ArrayAdapter<>(
+            getActivity(), R.layout.item_log_white, R.id.item_log, new ArrayList<>());
+    listDetail.setAdapter(adapterDetail);
+
+    adapterSubscriptionInfo =
+        new ArrayAdapter<>(
+            getActivity(), R.layout.item_log_white, R.id.item_log, new ArrayList<>());
+    listSubscriptionInfo.setAdapter(adapterSubscriptionInfo);
+  }
+
+  private Observable<Contributor> getSlowCachedDiskData() {
+    return Observable.timer(1, TimeUnit.SECONDS).flatMap(dummy -> getCachedDiskData());
+  }
+
+  private Observable<Contributor> getCachedDiskData() {
+    List<Contributor> list = new ArrayList<>();
+    Map<String, Long> map = dummyDiskData();
+
+    for (String username : map.keySet()) {
+      Contributor c = new Contributor();
+      c.login = username;
+      c.contributions = map.get(username);
+      list.add(c);
     }
 
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    @OnClick(R.id.btn_pseudoCache_concat)
-    public void onConcatBtnClicked() {
-        infoText.setText(R.string.msg_pseudoCache_demoInfo_concat);
-        wireupDemo();
-
-        Observable.concat(getSlowCachedDiskData(), getFreshNetworkData())
-              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Contributor>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      contributionMap.put(contributor.login, contributor.contributions);
-                      adapterDetail.clear();
-                      adapterDetail.addAll(mapAsList(contributionMap));
-                  }
-              });
-    }
-
-    @OnClick(R.id.btn_pseudoCache_concatEager)
-    public void onConcatEagerBtnClicked() {
-        infoText.setText(R.string.msg_pseudoCache_demoInfo_concatEager);
-        wireupDemo();
-
-        List<Observable<Contributor>> observables = new ArrayList<>(2);
-        observables.add(getSlowCachedDiskData());
-        observables.add(getFreshNetworkData());
-
-        Observable.concatEager(observables)
-              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Contributor>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      contributionMap.put(contributor.login, contributor.contributions);
-                      adapterDetail.clear();
-                      adapterDetail.addAll(mapAsList(contributionMap));
-                  }
-              });
-
-    }
-
-    @OnClick(R.id.btn_pseudoCache_merge)
-    public void onMergeBtnClicked() {
-        infoText.setText(R.string.msg_pseudoCache_demoInfo_merge);
-        wireupDemo();
-
-        Observable.merge(getCachedDiskData(), getFreshNetworkData())
-              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Contributor>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      contributionMap.put(contributor.login, contributor.contributions);
-                      adapterDetail.clear();
-                      adapterDetail.addAll(mapAsList(contributionMap));
-                  }
-              });
-    }
-
-    @OnClick(R.id.btn_pseudoCache_mergeSlowDisk)
-    public void onMergeSlowBtnClicked() {
-        infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeSlowDisk);
-        wireupDemo();
-
-        Observable.merge(getSlowCachedDiskData(), getFreshNetworkData())
-              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Contributor>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      contributionMap.put(contributor.login, contributor.contributions);
-                      adapterDetail.clear();
-                      adapterDetail.addAll(mapAsList(contributionMap));
-                  }
-              });
-    }
-
-    @OnClick(R.id.btn_pseudoCache_mergeOptimized)
-    public void onMergeOptimizedBtnClicked() {
-        infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeOptimized);
-        wireupDemo();
-
-        getFreshNetworkData()//
-              .publish(network ->//
-                             Observable.merge(network,//
-                                              getCachedDiskData().takeUntil(network)))
-              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Contributor>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      contributionMap.put(contributor.login, contributor.contributions);
-                      adapterDetail.clear();
-                      adapterDetail.addAll(mapAsList(contributionMap));
-                  }
-              });
-    }
-
-    @OnClick(R.id.btn_pseudoCache_mergeOptimizedSlowDisk)
-    public void onMergeOptimizedWithSlowDiskBtnClicked() {
-        infoText.setText(R.string.msg_pseudoCache_demoInfo_mergeOptimizedSlowDisk);
-        wireupDemo();
-
-        getFreshNetworkData()//
-              .publish(network ->//
-                             Observable.merge(network,//
-                                              getSlowCachedDiskData().takeUntil(network)))
-              .subscribeOn(Schedulers.io()) // we want to add a list item at time of subscription
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Contributor>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Contributor contributor) {
-                      contributionMap.put(contributor.login, contributor.contributions);
-                      adapterDetail.clear();
-                      adapterDetail.addAll(mapAsList(contributionMap));
-                  }
-              });
-    }
-
-    // -----------------------------------------------------------------------------------
-    // WIRING for example
-
-    private void wireupDemo() {
-        contributionMap = new HashMap<>();
-
-        adapterDetail = new ArrayAdapter<>(getActivity(), R.layout.item_log_white, R.id.item_log, new ArrayList<>());
-        listDetail.setAdapter(adapterDetail);
-
-        adapterSubscriptionInfo = new ArrayAdapter<>(getActivity(),
-                                                     R.layout.item_log_white,
-                                                     R.id.item_log,
-                                                     new ArrayList<>());
-        listSubscriptionInfo.setAdapter(adapterSubscriptionInfo);
-    }
-
-    private Observable<Contributor> getSlowCachedDiskData() {
-        return Observable.timer(1, TimeUnit.SECONDS).flatMap(dummy -> getCachedDiskData());
-    }
-
-    private Observable<Contributor> getCachedDiskData() {
-        List<Contributor> list = new ArrayList<>();
-        Map<String, Long> map = dummyDiskData();
-
-        for (String username : map.keySet()) {
-            Contributor c = new Contributor();
-            c.login = username;
-            c.contributions = map.get(username);
-            list.add(c);
-        }
-
-        return Observable.fromIterable(list)//
-              .doOnSubscribe((data) -> new Handler(Looper.getMainLooper())//
-                    .post(() -> adapterSubscriptionInfo.add("(disk) cache subscribed")))//
-              .doOnComplete(() -> new Handler(Looper.getMainLooper())//
+    return Observable.fromIterable(list) //
+        .doOnSubscribe(
+            (data) ->
+                new Handler(Looper.getMainLooper()) //
+                    .post(() -> adapterSubscriptionInfo.add("(disk) cache subscribed"))) //
+        .doOnComplete(
+            () ->
+                new Handler(Looper.getMainLooper()) //
                     .post(() -> adapterSubscriptionInfo.add("(disk) cache completed")));
-    }
-
-    private Observable<Contributor> getFreshNetworkData() {
-        String githubToken = getResources().getString(R.string.github_oauth_token);
-        GithubApi githubService = GithubService.createGithubService(githubToken);
-
-        return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::fromIterable)
-              .doOnSubscribe((data) -> new Handler(Looper.getMainLooper())//
-                    .post(() -> adapterSubscriptionInfo.add("(network) subscribed")))//
-              .doOnComplete(() -> new Handler(Looper.getMainLooper())//
+  }
+
+  private Observable<Contributor> getFreshNetworkData() {
+    String githubToken = getResources().getString(R.string.github_oauth_token);
+    GithubApi githubService = GithubService.createGithubService(githubToken);
+
+    return githubService
+        .contributors("square", "retrofit")
+        .flatMap(Observable::fromIterable)
+        .doOnSubscribe(
+            (data) ->
+                new Handler(Looper.getMainLooper()) //
+                    .post(() -> adapterSubscriptionInfo.add("(network) subscribed"))) //
+        .doOnComplete(
+            () ->
+                new Handler(Looper.getMainLooper()) //
                     .post(() -> adapterSubscriptionInfo.add("(network) completed")));
-    }
-
-    private List<String> mapAsList(HashMap<String, Long> map) {
-        List<String> list = new ArrayList<>();
+  }
 
-        for (String username : map.keySet()) {
-            String rowLog = String.format("%s [%d]", username, contributionMap.get(username));
-            list.add(rowLog);
-        }
+  private List<String> mapAsList(HashMap<String, Long> map) {
+    List<String> list = new ArrayList<>();
 
-        return list;
+    for (String username : map.keySet()) {
+      String rowLog = String.format("%s [%d]", username, contributionMap.get(username));
+      list.add(rowLog);
     }
 
-    private Map<String, Long> dummyDiskData() {
-        Map<String, Long> map = new HashMap<>();
-        map.put("JakeWharton", 0L);
-        map.put("pforhan", 0L);
-        map.put("edenman", 0L);
-        map.put("swankjesse", 0L);
-        map.put("bruceLee", 0L);
-        return map;
-    }
+    return list;
+  }
+
+  private Map<String, Long> dummyDiskData() {
+    Map<String, Long> map = new HashMap<>();
+    map.put("JakeWharton", 0L);
+    map.put("pforhan", 0L);
+    map.put("edenman", 0L);
+    map.put("swankjesse", 0L);
+    map.put("bruceLee", 0L);
+    return map;
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
index 9c8d79bf..3871437d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PseudoCacheMergeFragment.java
@@ -28,115 +28,117 @@
 import io.reactivex.schedulers.Schedulers;
 import timber.log.Timber;
 
-public class PseudoCacheMergeFragment
-      extends BaseFragment {
-
-    @BindView(R.id.log_list) ListView _resultList;
-
-    private ArrayAdapter<String> _adapter;
-    private HashMap<String, Long> _contributionMap = null;
-    private HashMap<Contributor, Long> _resultAgeMap = new HashMap<>();
-    private Unbinder unbinder;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        _initializeCache();
-        return layout;
+public class PseudoCacheMergeFragment extends BaseFragment {
+
+  @BindView(R.id.log_list)
+  ListView _resultList;
+
+  private ArrayAdapter<String> _adapter;
+  private HashMap<String, Long> _contributionMap = null;
+  private HashMap<Contributor, Long> _resultAgeMap = new HashMap<>();
+  private Unbinder unbinder;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_pseudo_cache_concat, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    _initializeCache();
+    return layout;
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  @OnClick(R.id.btn_start_pseudo_cache)
+  public void onDemoPseudoCacheClicked() {
+    _adapter =
+        new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
+
+    _resultList.setAdapter(_adapter);
+    _initializeCache();
+
+    Observable.merge(_getCachedData(), _getFreshData())
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<Pair<Contributor, Long>>() {
+              @Override
+              public void onComplete() {
+                Timber.d("done loading all data");
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "arr something went wrong");
+              }
+
+              @Override
+              public void onNext(Pair<Contributor, Long> contributorAgePair) {
+                Contributor contributor = contributorAgePair.first;
+
+                if (_resultAgeMap.containsKey(contributor)
+                    && _resultAgeMap.get(contributor) > contributorAgePair.second) {
+                  return;
+                }
+
+                _contributionMap.put(contributor.login, contributor.contributions);
+                _resultAgeMap.put(contributor, contributorAgePair.second);
+
+                _adapter.clear();
+                _adapter.addAll(getListStringFromMap());
+              }
+            });
+  }
+
+  private List<String> getListStringFromMap() {
+    List<String> list = new ArrayList<>();
+
+    for (String username : _contributionMap.keySet()) {
+      String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
+      list.add(rowLog);
     }
 
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    @OnClick(R.id.btn_start_pseudo_cache)
-    public void onDemoPseudoCacheClicked() {
-        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
-
-        _resultList.setAdapter(_adapter);
-        _initializeCache();
-
-        Observable.merge(_getCachedData(), _getFreshData())
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<Pair<Contributor,Long>>() {
-                  @Override
-                  public void onComplete() {
-                      Timber.d("done loading all data");
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "arr something went wrong");
-                  }
-
-                  @Override
-                  public void onNext(Pair<Contributor, Long> contributorAgePair) {
-                      Contributor contributor = contributorAgePair.first;
-
-                      if (_resultAgeMap.containsKey(contributor) &&
-                          _resultAgeMap.get(contributor) > contributorAgePair.second) {
-                          return;
-                      }
-
-                      _contributionMap.put(contributor.login, contributor.contributions);
-                      _resultAgeMap.put(contributor, contributorAgePair.second);
-
-                      _adapter.clear();
-                      _adapter.addAll(getListStringFromMap());
-                  }
-              });
-    }
-
-    private List<String> getListStringFromMap() {
-        List<String> list = new ArrayList<>();
-
-        for (String username : _contributionMap.keySet()) {
-            String rowLog = String.format("%s [%d]", username, _contributionMap.get(username));
-            list.add(rowLog);
-        }
-
-        return list;
-    }
-
-    private Observable<Pair<Contributor, Long>> _getCachedData() {
-
-        List<Pair<Contributor, Long>> list = new ArrayList<>();
+    return list;
+  }
 
-        Pair<Contributor, Long> dataWithAgePair;
+  private Observable<Pair<Contributor, Long>> _getCachedData() {
 
-        for (String username : _contributionMap.keySet()) {
-            Contributor c = new Contributor();
-            c.login = username;
-            c.contributions = _contributionMap.get(username);
+    List<Pair<Contributor, Long>> list = new ArrayList<>();
 
-            dataWithAgePair = new Pair<>(c, System.currentTimeMillis());
-            list.add(dataWithAgePair);
-        }
+    Pair<Contributor, Long> dataWithAgePair;
 
-        return Observable.fromIterable(list);
-    }
-
-    private Observable<Pair<Contributor, Long>> _getFreshData() {
-        String githubToken = getResources().getString(R.string.github_oauth_token);
-        GithubApi githubService = GithubService.createGithubService(githubToken);
+    for (String username : _contributionMap.keySet()) {
+      Contributor c = new Contributor();
+      c.login = username;
+      c.contributions = _contributionMap.get(username);
 
-        return githubService.contributors("square", "retrofit")
-              .flatMap(Observable::fromIterable)
-              .map(contributor -> new Pair<>(contributor, System.currentTimeMillis()));
+      dataWithAgePair = new Pair<>(c, System.currentTimeMillis());
+      list.add(dataWithAgePair);
     }
 
-    private void _initializeCache() {
-        _contributionMap = new HashMap<>();
-        _contributionMap.put("JakeWharton", 0l);
-        _contributionMap.put("pforhan", 0l);
-        _contributionMap.put("edenman", 0l);
-        _contributionMap.put("swankjesse", 0l);
-        _contributionMap.put("bruceLee", 0l);
-    }
+    return Observable.fromIterable(list);
+  }
+
+  private Observable<Pair<Contributor, Long>> _getFreshData() {
+    String githubToken = getResources().getString(R.string.github_oauth_token);
+    GithubApi githubService = GithubService.createGithubService(githubToken);
+
+    return githubService
+        .contributors("square", "retrofit")
+        .flatMap(Observable::fromIterable)
+        .map(contributor -> new Pair<>(contributor, System.currentTimeMillis()));
+  }
+
+  private void _initializeCache() {
+    _contributionMap = new HashMap<>();
+    _contributionMap.put("JakeWharton", 0l);
+    _contributionMap.put("pforhan", 0l);
+    _contributionMap.put("edenman", 0l);
+    _contributionMap.put("swankjesse", 0l);
+    _contributionMap.put("bruceLee", 0l);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
index 9da8535e..baa391ed 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitAsyncTaskDeathFragment.java
@@ -28,93 +28,52 @@
 
 import static java.lang.String.format;
 
-public class RetrofitAsyncTaskDeathFragment
-      extends Fragment {
+public class RetrofitAsyncTaskDeathFragment extends Fragment {
 
-    @BindView(R.id.btn_demo_retrofit_async_death_username) EditText _username;
-    @BindView(R.id.log_list) ListView _resultList;
+  @BindView(R.id.btn_demo_retrofit_async_death_username)
+  EditText _username;
 
-    private GithubApi _githubService;
-    private ArrayAdapter<String> _adapter;
-    private Unbinder unbinder;
+  @BindView(R.id.log_list)
+  ListView _resultList;
 
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+  private GithubApi _githubService;
+  private ArrayAdapter<String> _adapter;
+  private Unbinder unbinder;
 
-        String githubToken = getResources().getString(R.string.github_oauth_token);
-        _githubService = GithubService.createGithubService(githubToken);
-    }
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-
-        View layout = inflater.inflate(R.layout.fragment_retrofit_async_task_death,
-              container,
-              false);
-        unbinder = ButterKnife.bind(this, layout);
-
-        _adapter = new ArrayAdapter<>(getActivity(),
-              R.layout.item_log,
-              R.id.item_log,
-              new ArrayList<>());
-        //_adapter.setNotifyOnChange(true);
-        _resultList.setAdapter(_adapter);
-
-        return layout;
-    }
+    String githubToken = getResources().getString(R.string.github_oauth_token);
+    _githubService = GithubService.createGithubService(githubToken);
+  }
 
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
 
-    @OnClick(R.id.btn_demo_retrofit_async_death)
-    public void onGetGithubUserClicked() {
-        _adapter.clear();
+    View layout = inflater.inflate(R.layout.fragment_retrofit_async_task_death, container, false);
+    unbinder = ButterKnife.bind(this, layout);
 
-        /*new AsyncTask<String, Void, User>() {
-            @Override
-            protected User doInBackground(String... params) {
-                return _githubService.getUser(params[0]);
-            }
+    _adapter =
+        new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
+    //_adapter.setNotifyOnChange(true);
+    _resultList.setAdapter(_adapter);
 
-            @Override
-            protected void onPostExecute(User user) {
-                _adapter.add(format("%s  = [%s: %s]", _username.getText(), user.name, user.email));
-            }
-        }.execute(_username.getText().toString());*/
-
-        _githubService.user(_username.getText().toString())
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(new DisposableObserver<User>() {
-                  @Override
-                  public void onComplete() {
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                  }
-
-                  @Override
-                  public void onNext(User user) {
-                      _adapter.add(format("%s  = [%s: %s]",
-                            _username.getText(),
-                            user.name,
-                            user.email));
-                  }
-              });
-    }
+    return layout;
+  }
 
-    // -----------------------------------------------------------------------------------
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
 
-    private class GetGithubUser
-          extends AsyncTask<String, Void, User> {
+  @OnClick(R.id.btn_demo_retrofit_async_death)
+  public void onGetGithubUserClicked() {
+    _adapter.clear();
 
+    /*new AsyncTask<String, Void, User>() {
         @Override
         protected User doInBackground(String... params) {
             return _githubService.getUser(params[0]);
@@ -124,5 +83,39 @@ protected User doInBackground(String... params) {
         protected void onPostExecute(User user) {
             _adapter.add(format("%s  = [%s: %s]", _username.getText(), user.name, user.email));
         }
+    }.execute(_username.getText().toString());*/
+
+    _githubService
+        .user(_username.getText().toString())
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(
+            new DisposableObserver<User>() {
+              @Override
+              public void onComplete() {}
+
+              @Override
+              public void onError(Throwable e) {}
+
+              @Override
+              public void onNext(User user) {
+                _adapter.add(format("%s  = [%s: %s]", _username.getText(), user.name, user.email));
+              }
+            });
+  }
+
+  // -----------------------------------------------------------------------------------
+
+  private class GetGithubUser extends AsyncTask<String, Void, User> {
+
+    @Override
+    protected User doInBackground(String... params) {
+      return _githubService.getUser(params[0]);
+    }
+
+    @Override
+    protected void onPostExecute(User user) {
+      _adapter.add(format("%s  = [%s: %s]", _username.getText(), user.name, user.email));
     }
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index 540f3bf5..cb9eeb38 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -34,137 +34,151 @@
 import static android.text.TextUtils.isEmpty;
 import static java.lang.String.format;
 
-public class RetrofitFragment
-      extends Fragment {
-
-    @BindView(R.id.demo_retrofit_contributors_username) EditText _username;
-    @BindView(R.id.demo_retrofit_contributors_repository) EditText _repo;
-    @BindView(R.id.log_list) ListView _resultList;
-
-    private ArrayAdapter<String> _adapter;
-    private GithubApi _githubService;
-    private CompositeDisposable _disposables;
-    private Unbinder unbinder;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        String githubToken = getResources().getString(R.string.github_oauth_token);
-        _githubService = GithubService.createGithubService(githubToken);
-
-        _disposables = new CompositeDisposable();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-
-        View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-
-        _adapter = new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
-        //_adapter.setNotifyOnChange(true);
-        _resultList.setAdapter(_adapter);
-
-        return layout;
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _disposables.dispose();
-    }
-
-    @OnClick(R.id.btn_demo_retrofit_contributors)
-    public void onListContributorsClicked() {
-        _adapter.clear();
-
-        _disposables.add(//
-              _githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-                    .subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribeWith(new DisposableObserver<List<Contributor>>() {
-
-                        @Override
-                        public void onComplete() {
-                            Timber.d("Retrofit call 1 completed");
-                        }
-
-                        @Override
-                        public void onError(Throwable e) {
-                            Timber.e(e, "woops we got an error while getting the list of contributors");
-                        }
-
-                        @Override
-                        public void onNext(List<Contributor> contributors) {
-                            for (Contributor c : contributors) {
-                                _adapter.add(format("%s has made %d contributions to %s",
-                                      c.login,
-                                      c.contributions,
-                                      _repo.getText().toString()));
-
-                                Timber.d("%s has made %d contributions to %s",
-                                      c.login,
-                                      c.contributions,
-                                      _repo.getText().toString());
-                            }
-                        }
-                    }));
-    }
-
-    @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
-    public void onListContributorsWithFullUserInfoClicked() {
-        _adapter.clear();
-
-        _disposables.add(_githubService.contributors(_username.getText().toString(), _repo.getText().toString())
-              .flatMap(Observable::fromIterable)
-              .flatMap(contributor -> {
-                  Observable<User> _userObservable = _githubService.user(contributor.login)
-                        .filter(user -> !isEmpty(user.name) && !isEmpty(user.email));
-
-                  return Observable.zip(_userObservable,
-                        Observable.just(contributor),
-                        Pair::new);
-              })
-              .subscribeOn(Schedulers.newThread())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribeWith(new DisposableObserver<Pair<User,Contributor>>() {
+public class RetrofitFragment extends Fragment {
+
+  @BindView(R.id.demo_retrofit_contributors_username)
+  EditText _username;
+
+  @BindView(R.id.demo_retrofit_contributors_repository)
+  EditText _repo;
+
+  @BindView(R.id.log_list)
+  ListView _resultList;
+
+  private ArrayAdapter<String> _adapter;
+  private GithubApi _githubService;
+  private CompositeDisposable _disposables;
+  private Unbinder unbinder;
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    String githubToken = getResources().getString(R.string.github_oauth_token);
+    _githubService = GithubService.createGithubService(githubToken);
+
+    _disposables = new CompositeDisposable();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+
+    View layout = inflater.inflate(R.layout.fragment_retrofit, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+
+    _adapter =
+        new ArrayAdapter<>(getActivity(), R.layout.item_log, R.id.item_log, new ArrayList<>());
+    //_adapter.setNotifyOnChange(true);
+    _resultList.setAdapter(_adapter);
+
+    return layout;
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _disposables.dispose();
+  }
+
+  @OnClick(R.id.btn_demo_retrofit_contributors)
+  public void onListContributorsClicked() {
+    _adapter.clear();
+
+    _disposables.add( //
+        _githubService
+            .contributors(_username.getText().toString(), _repo.getText().toString())
+            .subscribeOn(Schedulers.io())
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribeWith(
+                new DisposableObserver<List<Contributor>>() {
+
+                  @Override
+                  public void onComplete() {
+                    Timber.d("Retrofit call 1 completed");
+                  }
+
+                  @Override
+                  public void onError(Throwable e) {
+                    Timber.e(e, "woops we got an error while getting the list of contributors");
+                  }
+
+                  @Override
+                  public void onNext(List<Contributor> contributors) {
+                    for (Contributor c : contributors) {
+                      _adapter.add(
+                          format(
+                              "%s has made %d contributions to %s",
+                              c.login, c.contributions, _repo.getText().toString()));
+
+                      Timber.d(
+                          "%s has made %d contributions to %s",
+                          c.login, c.contributions, _repo.getText().toString());
+                    }
+                  }
+                }));
+  }
+
+  @OnClick(R.id.btn_demo_retrofit_contributors_with_user_info)
+  public void onListContributorsWithFullUserInfoClicked() {
+    _adapter.clear();
+
+    _disposables.add(
+        _githubService
+            .contributors(_username.getText().toString(), _repo.getText().toString())
+            .flatMap(Observable::fromIterable)
+            .flatMap(
+                contributor -> {
+                  Observable<User> _userObservable =
+                      _githubService
+                          .user(contributor.login)
+                          .filter(user -> !isEmpty(user.name) && !isEmpty(user.email));
+
+                  return Observable.zip(_userObservable, Observable.just(contributor), Pair::new);
+                })
+            .subscribeOn(Schedulers.newThread())
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribeWith(
+                new DisposableObserver<Pair<User, Contributor>>() {
                   @Override
                   public void onComplete() {
-                      Timber.d("Retrofit call 2 completed ");
+                    Timber.d("Retrofit call 2 completed ");
                   }
 
                   @Override
                   public void onError(Throwable e) {
-                      Timber.e(e, "error while getting the list of contributors along with full " + "names");
+                    Timber.e(
+                        e,
+                        "error while getting the list of contributors along with full " + "names");
                   }
 
                   @Override
                   public void onNext(Pair pair) {
-                      User user = ((Pair<User, Contributor>)pair).first;
-                      Contributor contributor = ((Pair<User, Contributor>)pair).second;
+                    User user = ((Pair<User, Contributor>) pair).first;
+                    Contributor contributor = ((Pair<User, Contributor>) pair).second;
 
-                      _adapter.add(format("%s(%s) has made %d contributions to %s",
+                    _adapter.add(
+                        format(
+                            "%s(%s) has made %d contributions to %s",
                             user.name,
                             user.email,
                             contributor.contributions,
                             _repo.getText().toString()));
 
-                      _adapter.notifyDataSetChanged();
+                    _adapter.notifyDataSetChanged();
 
-                      Timber.d("%s(%s) has made %d contributions to %s",
-                            user.name,
-                            user.email,
-                            contributor.contributions,
-                            _repo.getText().toString());
+                    Timber.d(
+                        "%s(%s) has made %d contributions to %s",
+                        user.name,
+                        user.email,
+                        contributor.contributions,
+                        _repo.getText().toString());
                   }
-              }));
-    }
+                }));
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
index e1b4ac53..00882958 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1Fragment.java
@@ -23,115 +23,116 @@
 import java.util.List;
 import timber.log.Timber;
 
-public class RotationPersist1Fragment
-      extends BaseFragment
-      implements RotationPersist1WorkerFragment.IAmYourMaster {
+public class RotationPersist1Fragment extends BaseFragment
+    implements RotationPersist1WorkerFragment.IAmYourMaster {
 
-    public static final String TAG = RotationPersist1Fragment.class.toString();
+  public static final String TAG = RotationPersist1Fragment.class.toString();
 
-    @BindView(R.id.list_threading_log) ListView _logList;
+  @BindView(R.id.list_threading_log)
+  ListView _logList;
 
-    private LogAdapter _adapter;
-    private List<String> _logs;
-    private Unbinder unbinder;
+  private LogAdapter _adapter;
+  private List<String> _logs;
+  private Unbinder unbinder;
 
-    private CompositeDisposable _disposables = new CompositeDisposable();
+  private CompositeDisposable _disposables = new CompositeDisposable();
 
-    // -----------------------------------------------------------------------------------
+  // -----------------------------------------------------------------------------------
 
-    @OnClick(R.id.btn_rotate_persist)
-    public void startOperationFromWorkerFrag() {
-        _logs = new ArrayList<>();
-        _adapter.clear();
+  @OnClick(R.id.btn_rotate_persist)
+  public void startOperationFromWorkerFrag() {
+    _logs = new ArrayList<>();
+    _adapter.clear();
 
-        FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersist1WorkerFragment frag =
-              (RotationPersist1WorkerFragment) fm.findFragmentByTag(
-                  RotationPersist1WorkerFragment.TAG);
+    FragmentManager fm = getActivity().getSupportFragmentManager();
+    RotationPersist1WorkerFragment frag =
+        (RotationPersist1WorkerFragment) fm.findFragmentByTag(RotationPersist1WorkerFragment.TAG);
 
-        if (frag == null) {
-            frag = new RotationPersist1WorkerFragment();
-            fm.beginTransaction().add(frag, RotationPersist1WorkerFragment.TAG).commit();
-        } else {
-            Timber.d("Worker frag already spawned");
-        }
+    if (frag == null) {
+      frag = new RotationPersist1WorkerFragment();
+      fm.beginTransaction().add(frag, RotationPersist1WorkerFragment.TAG).commit();
+    } else {
+      Timber.d("Worker frag already spawned");
     }
-
-    @Override
-    public void observeResults(Flowable<Integer> intsFlowable) {
-
-        DisposableSubscriber<Integer> d = new DisposableSubscriber<Integer>() {
-            @Override
-            public void onNext(Integer integer) {
-                _log(String.format("Worker frag spits out - %d", integer));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "Error in worker demo frag observable");
-                _log("Dang! something went wrong.");
-            }
-
-            @Override
-            public void onComplete() {
-                _log("Observable is complete");
-            }
+  }
+
+  @Override
+  public void observeResults(Flowable<Integer> intsFlowable) {
+
+    DisposableSubscriber<Integer> d =
+        new DisposableSubscriber<Integer>() {
+          @Override
+          public void onNext(Integer integer) {
+            _log(String.format("Worker frag spits out - %d", integer));
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "Error in worker demo frag observable");
+            _log("Dang! something went wrong.");
+          }
+
+          @Override
+          public void onComplete() {
+            _log("Observable is complete");
+          }
         };
 
-        intsFlowable
-              .doOnSubscribe(subscription -> {
-                  _log("Subscribing to intsObservable");
-              })
-              .subscribe(d);
-
-        _disposables.add(d);
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Boilerplate
-    // -----------------------------------------------------------------------------------
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        _disposables.clear();
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-        _logs.add(0, logMsg);
-
-        // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(() -> {
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        });
-    }
-
-}
\ No newline at end of file
+    intsFlowable
+        .doOnSubscribe(
+            subscription -> {
+              _log("Subscribing to intsObservable");
+            })
+        .subscribe(d);
+
+    _disposables.add(d);
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Boilerplate
+  // -----------------------------------------------------------------------------------
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    _disposables.clear();
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+    _logs.add(0, logMsg);
+
+    // You can only do below stuff on main thread.
+    new Handler(getMainLooper())
+        .post(
+            () -> {
+              _adapter.clear();
+              _adapter.addAll(_logs);
+            });
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
index 69b18027..d16adc14 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java
@@ -9,82 +9,73 @@
 import io.reactivex.flowables.ConnectableFlowable;
 import java.util.concurrent.TimeUnit;
 
-public class RotationPersist1WorkerFragment
-      extends Fragment {
+public class RotationPersist1WorkerFragment extends Fragment {
 
   public static final String TAG = RotationPersist1WorkerFragment.class.toString();
 
   private IAmYourMaster _masterFrag;
-    private ConnectableFlowable<Integer> _storedIntsFlowable;
-    private Disposable _storedIntsDisposable;
-
-    /**
-     * Hold a reference to the activity -> caller fragment
-     * this way when the worker frag kicks off
-     * we can talk back to the master and send results
-     */
-    @Override
-    public void onAttach(Context context) {
-        super.onAttach(context);
-
-      _masterFrag = (RotationPersist1Fragment) ((MainActivity) context)
-              .getSupportFragmentManager()
-              .findFragmentByTag(RotationPersist1Fragment.TAG);
-
-        if (_masterFrag == null) {
-            throw new ClassCastException("We did not find a master who can understand us :(");
-        }
+  private ConnectableFlowable<Integer> _storedIntsFlowable;
+  private Disposable _storedIntsDisposable;
+
+  /**
+   * Hold a reference to the activity -> caller fragment this way when the worker frag kicks off we
+   * can talk back to the master and send results
+   */
+  @Override
+  public void onAttach(Context context) {
+    super.onAttach(context);
+
+    _masterFrag =
+        (RotationPersist1Fragment)
+            ((MainActivity) context)
+                .getSupportFragmentManager()
+                .findFragmentByTag(RotationPersist1Fragment.TAG);
+
+    if (_masterFrag == null) {
+      throw new ClassCastException("We did not find a master who can understand us :(");
     }
+  }
 
-    /**
-     * This method will only be called once when the retained Fragment is first created.
-     */
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+  /** This method will only be called once when the retained Fragment is first created. */
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
 
-        // Retain this fragment across configuration changes.
-        setRetainInstance(true);
+    // Retain this fragment across configuration changes.
+    setRetainInstance(true);
 
-        if (_storedIntsFlowable != null) {
-            return;
-        }
-
-        Flowable<Integer> intsObservable = Flowable
-              .interval(1, TimeUnit.SECONDS)
-              .map(Long::intValue)
-              .take(20);
-
-        _storedIntsFlowable = intsObservable.publish();
-        _storedIntsDisposable = _storedIntsFlowable.connect();
+    if (_storedIntsFlowable != null) {
+      return;
     }
 
-    /**
-     * The Worker fragment has started doing it's thing
-     */
-    @Override
-    public void onResume() {
-        super.onResume();
-        _masterFrag.observeResults(_storedIntsFlowable);
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _storedIntsDisposable.dispose();
-    }
-
-    /**
-     * Set the callback to null so we don't accidentally leak the
-     * Activity instance.
-     */
-    @Override
-    public void onDetach() {
-        super.onDetach();
-        _masterFrag = null;
-    }
-
-    public interface IAmYourMaster {
-        void observeResults(Flowable<Integer> intsObservable);
-    }
+    Flowable<Integer> intsObservable =
+        Flowable.interval(1, TimeUnit.SECONDS).map(Long::intValue).take(20);
+
+    _storedIntsFlowable = intsObservable.publish();
+    _storedIntsDisposable = _storedIntsFlowable.connect();
+  }
+
+  /** The Worker fragment has started doing it's thing */
+  @Override
+  public void onResume() {
+    super.onResume();
+    _masterFrag.observeResults(_storedIntsFlowable);
+  }
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _storedIntsDisposable.dispose();
+  }
+
+  /** Set the callback to null so we don't accidentally leak the Activity instance. */
+  @Override
+  public void onDetach() {
+    super.onDetach();
+    _masterFrag = null;
+  }
+
+  public interface IAmYourMaster {
+    void observeResults(Flowable<Integer> intsObservable);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
index 3308bf7c..6e523013 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2Fragment.java
@@ -22,108 +22,103 @@
 import java.util.List;
 import timber.log.Timber;
 
-public class RotationPersist2Fragment
-      extends BaseFragment
-      implements RotationPersist2WorkerFragment.IAmYourMaster {
+public class RotationPersist2Fragment extends BaseFragment
+    implements RotationPersist2WorkerFragment.IAmYourMaster {
 
-    public static final String TAG = RotationPersist2Fragment.class.toString();
+  public static final String TAG = RotationPersist2Fragment.class.toString();
 
-    @BindView(R.id.list_threading_log) ListView _logList;
+  @BindView(R.id.list_threading_log)
+  ListView _logList;
 
-    private LogAdapter _adapter;
-    private List<String> _logs;
+  private LogAdapter _adapter;
+  private List<String> _logs;
 
-    private CompositeDisposable _disposables = new CompositeDisposable();
+  private CompositeDisposable _disposables = new CompositeDisposable();
 
-    // -----------------------------------------------------------------------------------
+  // -----------------------------------------------------------------------------------
 
-    @OnClick(R.id.btn_rotate_persist)
-    public void startOperationFromWorkerFrag() {
-        _logs = new ArrayList<>();
-        _adapter.clear();
+  @OnClick(R.id.btn_rotate_persist)
+  public void startOperationFromWorkerFrag() {
+    _logs = new ArrayList<>();
+    _adapter.clear();
 
-        FragmentManager fm = getActivity().getSupportFragmentManager();
-        RotationPersist2WorkerFragment frag = (RotationPersist2WorkerFragment) fm.findFragmentByTag(
-            RotationPersist2WorkerFragment.TAG);
+    FragmentManager fm = getActivity().getSupportFragmentManager();
+    RotationPersist2WorkerFragment frag =
+        (RotationPersist2WorkerFragment) fm.findFragmentByTag(RotationPersist2WorkerFragment.TAG);
 
-        if (frag == null) {
-            frag = new RotationPersist2WorkerFragment();
-            fm
-                  .beginTransaction()
-                  .add(frag, RotationPersist2WorkerFragment.TAG)
-                  .commit();
-        }
-        else {
-            Timber.d("Worker frag already spawned");
-        }
+    if (frag == null) {
+      frag = new RotationPersist2WorkerFragment();
+      fm.beginTransaction().add(frag, RotationPersist2WorkerFragment.TAG).commit();
+    } else {
+      Timber.d("Worker frag already spawned");
     }
-
-    @Override
-    public void setStream(Flowable<Integer> intStream) {
-        DisposableSubscriber<Integer> d = new DisposableSubscriber<Integer>() {
-            @Override
-            public void onNext(Integer integer) {
-                _log(String.format("Worker frag spits out - %d", integer));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "Error in worker demo frag observable");
-                _log("Dang! something went wrong.");
-            }
-
-            @Override
-            public void onComplete() {
-                _log("Observable is complete");
-            }
+  }
+
+  @Override
+  public void setStream(Flowable<Integer> intStream) {
+    DisposableSubscriber<Integer> d =
+        new DisposableSubscriber<Integer>() {
+          @Override
+          public void onNext(Integer integer) {
+            _log(String.format("Worker frag spits out - %d", integer));
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "Error in worker demo frag observable");
+            _log("Dang! something went wrong.");
+          }
+
+          @Override
+          public void onComplete() {
+            _log("Observable is complete");
+          }
         };
 
-        intStream
-              .doOnSubscribe(subscription -> _log("Subscribing to intsObservable"))
-              .subscribe(d);
-
-        _disposables.add(d);
-
-    }
-
-// -----------------------------------------------------------------------------------
-    // Boilerplate
-    // -----------------------------------------------------------------------------------
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        _disposables.clear();
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-        _logs.add(0, logMsg);
-
-        // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(() -> {
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        });
-    }
-}
\ No newline at end of file
+    intStream.doOnSubscribe(subscription -> _log("Subscribing to intsObservable")).subscribe(d);
+
+    _disposables.add(d);
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Boilerplate
+  // -----------------------------------------------------------------------------------
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rotation_persist, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    _disposables.clear();
+  }
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+    _logs.add(0, logMsg);
+
+    // You can only do below stuff on main thread.
+    new Handler(getMainLooper())
+        .post(
+            () -> {
+              _adapter.clear();
+              _adapter.addAll(_logs);
+            });
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
index bc6ca287..cdbe6cd3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java
@@ -8,84 +8,73 @@
 import io.reactivex.processors.PublishProcessor;
 import java.util.concurrent.TimeUnit;
 
-public class RotationPersist2WorkerFragment
-      extends Fragment {
+public class RotationPersist2WorkerFragment extends Fragment {
 
-    public static final String TAG = RotationPersist2WorkerFragment.class.toString();
+  public static final String TAG = RotationPersist2WorkerFragment.class.toString();
 
-    private PublishProcessor<Integer> _intStream;
-    private PublishProcessor<Boolean> _lifeCycleStream;
+  private PublishProcessor<Integer> _intStream;
+  private PublishProcessor<Boolean> _lifeCycleStream;
 
-    private IAmYourMaster _masterFrag;
+  private IAmYourMaster _masterFrag;
 
-    /**
-     * Since we're holding a reference to the Master a.k.a Activity/Master Frag
-     * remember to explicitly remove the worker fragment or you'll have a mem leak in your hands.
-     * <p>
-     * See {@link MainActivity#onBackPressed()}
-     */
-    @Override
-    public void onAttach(Context context) {
-        super.onAttach(context);
+  /**
+   * Since we're holding a reference to the Master a.k.a Activity/Master Frag remember to explicitly
+   * remove the worker fragment or you'll have a mem leak in your hands.
+   *
+   * <p>See {@link MainActivity#onBackPressed()}
+   */
+  @Override
+  public void onAttach(Context context) {
+    super.onAttach(context);
 
-        _masterFrag = (RotationPersist2Fragment) ((MainActivity) context)
-            .getSupportFragmentManager().findFragmentByTag(RotationPersist2Fragment.TAG);
+    _masterFrag =
+        (RotationPersist2Fragment)
+            ((MainActivity) context)
+                .getSupportFragmentManager()
+                .findFragmentByTag(RotationPersist2Fragment.TAG);
 
-
-        if (_masterFrag == null) {
-            throw new ClassCastException("We did not find a master who can understand us :(");
-        }
-    }
-
-    /**
-     * This method will only be called once when the retained Fragment is first created.
-     */
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        _intStream = PublishProcessor.create();
-        _lifeCycleStream = PublishProcessor.create();
-
-        // Retain this fragment across configuration changes.
-        setRetainInstance(true);
-
-        _intStream.takeUntil(_lifeCycleStream);
-
-        Flowable
-              .interval(1, TimeUnit.SECONDS)
-              .map(Long::intValue)
-              .take(20)
-              .subscribe(_intStream);
-
-    }
-
-    /**
-     * The Worker fragment has started doing it's thing
-     */
-    @Override
-    public void onResume() {
-        super.onResume();
-        _masterFrag.setStream(_intStream);
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        _lifeCycleStream.onComplete();
-    }
-
-    /**
-     * Set the callback to null so we don't accidentally leak the
-     * Activity instance.
-     */
-    @Override
-    public void onDetach() {
-        super.onDetach();
-        _masterFrag = null;
-    }
-
-    public interface IAmYourMaster {
-        void setStream(Flowable<Integer> intStream);
+    if (_masterFrag == null) {
+      throw new ClassCastException("We did not find a master who can understand us :(");
     }
+  }
+
+  /** This method will only be called once when the retained Fragment is first created. */
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    _intStream = PublishProcessor.create();
+    _lifeCycleStream = PublishProcessor.create();
+
+    // Retain this fragment across configuration changes.
+    setRetainInstance(true);
+
+    _intStream.takeUntil(_lifeCycleStream);
+
+    Flowable.interval(1, TimeUnit.SECONDS).map(Long::intValue).take(20).subscribe(_intStream);
+  }
+
+  /** The Worker fragment has started doing it's thing */
+  @Override
+  public void onResume() {
+    super.onResume();
+    _masterFrag.setStream(_intStream);
+  }
+
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
+    _lifeCycleStream.onComplete();
+  }
+
+  /** Set the callback to null so we don't accidentally leak the Activity instance. */
+  @Override
+  public void onDetach() {
+    super.onDetach();
+    _masterFrag = null;
+  }
+
+  public interface IAmYourMaster {
+    void setStream(Flowable<Integer> intStream);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
index 2cda5f2a..abeace6b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimeoutDemoFragment.java
@@ -24,158 +24,160 @@
 import java.util.concurrent.TimeUnit;
 import timber.log.Timber;
 
-public class TimeoutDemoFragment
-      extends BaseFragment {
+public class TimeoutDemoFragment extends BaseFragment {
 
-    @BindView(R.id.list_threading_log) ListView _logsList;
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
 
-    private LogAdapter _adapter;
-    private DisposableObserver<String> _disposable;
-    private List<String> _logs;
+  private LogAdapter _adapter;
+  private DisposableObserver<String> _disposable;
+  private List<String> _logs;
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
+  @Override
+  public void onDestroy() {
+    super.onDestroy();
 
-        if (_disposable == null) {
-            return;
-        }
-
-        _disposable.dispose();
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @OnClick(R.id.btn_demo_timeout_1_2s)
-    public void onStart2sTask() {
-        _disposable = _getEventCompletionObserver();
-
-        _getObservableTask_2sToComplete()
-              .timeout(3, TimeUnit.SECONDS)
-              .subscribeOn(Schedulers.computation())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(_disposable);
+    if (_disposable == null) {
+      return;
     }
 
-    @OnClick(R.id.btn_demo_timeout_1_5s)
-    public void onStart5sTask() {
-        _disposable = _getEventCompletionObserver();
-
-        _getObservableTask_5sToComplete()
-              .timeout(3, TimeUnit.SECONDS, _onTimeoutObservable())
-              .subscribeOn(Schedulers.computation())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(_disposable);
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Main Rx entities
-
-    private Observable<String> _getObservableTask_5sToComplete() {
-        return Observable.create(new ObservableOnSubscribe<String>() {
-            @Override
-            public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
-                _log(String.format("Starting a 5s task"));
-                subscriber.onNext("5 s");
-                try {
-                    Thread.sleep(5_000);
-                } catch (InterruptedException e) {
-                    e.printStackTrace();
-                }
-                subscriber.onComplete();
+    _disposable.dispose();
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_subject_timeout, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @OnClick(R.id.btn_demo_timeout_1_2s)
+  public void onStart2sTask() {
+    _disposable = _getEventCompletionObserver();
+
+    _getObservableTask_2sToComplete()
+        .timeout(3, TimeUnit.SECONDS)
+        .subscribeOn(Schedulers.computation())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_disposable);
+  }
+
+  @OnClick(R.id.btn_demo_timeout_1_5s)
+  public void onStart5sTask() {
+    _disposable = _getEventCompletionObserver();
+
+    _getObservableTask_5sToComplete()
+        .timeout(3, TimeUnit.SECONDS, _onTimeoutObservable())
+        .subscribeOn(Schedulers.computation())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(_disposable);
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Main Rx entities
+
+  private Observable<String> _getObservableTask_5sToComplete() {
+    return Observable.create(
+        new ObservableOnSubscribe<String>() {
+          @Override
+          public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
+            _log(String.format("Starting a 5s task"));
+            subscriber.onNext("5 s");
+            try {
+              Thread.sleep(5_000);
+            } catch (InterruptedException e) {
+              e.printStackTrace();
             }
+            subscriber.onComplete();
+          }
         });
-    }
-
-    private Observable<String> _getObservableTask_2sToComplete() {
-        return Observable
-              .create(new ObservableOnSubscribe<String>() {
-                  @Override
-                  public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
-                      _log(String.format("Starting a 2s task"));
-                      subscriber.onNext("2 s");
-                      try {
-                          Thread.sleep(2_000);
-                      } catch (InterruptedException e) {
-                          e.printStackTrace();
-                      }
-                      subscriber.onComplete();
-                  }
-              });
-    }
-
-    private Observable<? extends String> _onTimeoutObservable() {
-        return Observable.create(new ObservableOnSubscribe<String>() {
-
-            @Override
-            public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
-                _log("Timing out this task ...");
-                subscriber.onError(new Throwable("Timeout Error"));
+  }
+
+  private Observable<String> _getObservableTask_2sToComplete() {
+    return Observable.create(
+        new ObservableOnSubscribe<String>() {
+          @Override
+          public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
+            _log(String.format("Starting a 2s task"));
+            subscriber.onNext("2 s");
+            try {
+              Thread.sleep(2_000);
+            } catch (InterruptedException e) {
+              e.printStackTrace();
             }
+            subscriber.onComplete();
+          }
         });
-    }
-
-    private DisposableObserver<String> _getEventCompletionObserver() {
-        return new DisposableObserver<String>() {
-            @Override
-            public void onNext(String taskType) {
-                _log(String.format("onNext %s task", taskType));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                _log(String.format("Dang a task timeout"));
-                Timber.e(e, "Timeout Demo exception");
-            }
-
-            @Override
-            public void onComplete() {
-                _log(String.format("task was completed"));
-            }
-        };
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
+  }
 
-    private void _log(String logMsg) {
+  private Observable<? extends String> _onTimeoutObservable() {
+    return Observable.create(
+        new ObservableOnSubscribe<String>() {
 
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        }
-        else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+          @Override
+          public void subscribe(ObservableEmitter<String> subscriber) throws Exception {
+            _log("Timing out this task ...");
+            subscriber.onError(new Throwable("Timeout Error"));
+          }
+        });
+  }
+
+  private DisposableObserver<String> _getEventCompletionObserver() {
+    return new DisposableObserver<String>() {
+      @Override
+      public void onNext(String taskType) {
+        _log(String.format("onNext %s task", taskType));
+      }
+
+      @Override
+      public void onError(Throwable e) {
+        _log(String.format("Dang a task timeout"));
+        Timber.e(e, "Timeout Demo exception");
+      }
+
+      @Override
+      public void onComplete() {
+        _log(String.format("task was completed"));
+      }
+    };
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 _adapter.clear();
                 _adapter.addAll(_logs);
-            });
-        }
+              });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
-}
\ No newline at end of file
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
index 7bcc9147..55fb027c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/TimingDemoFragment.java
@@ -25,214 +25,212 @@
 import java.util.concurrent.TimeUnit;
 import timber.log.Timber;
 
-
 import static android.os.Looper.getMainLooper;
 import static android.os.Looper.myLooper;
 
-public class TimingDemoFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private List<String> _logs;
-
-    private DisposableSubscriber<Long> _subscriber1;
-    private DisposableSubscriber<Long> _subscriber2;
-    private Unbinder unbinder;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_demo_timing, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-
-    }
-// -----------------------------------------------------------------------------------
-
-    @OnClick(R.id.btn_demo_timing_1)
-    public void btn1_RunSingleTaskAfter2s() {
-        _log(String.format("A1 [%s] --- BTN click", _getCurrentTimestamp()));
-
-        Flowable.timer(2, TimeUnit.SECONDS)//
-                .subscribe(new DefaultSubscriber<Long>() {
-                    @Override
-                    public void onNext(Long number) {
-                        _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
-                    }
-
-                    @Override
-                    public void onError(Throwable e) {
-                        Timber.e(e, "something went wrong in TimingDemoFragment example");
-                    }
-
-                    @Override
-                    public void onComplete() {
-                        _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
-                    }
-                });
+public class TimingDemoFragment extends BaseFragment {
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  private LogAdapter _adapter;
+  private List<String> _logs;
+
+  private DisposableSubscriber<Long> _subscriber1;
+  private DisposableSubscriber<Long> _subscriber2;
+  private Unbinder unbinder;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_demo_timing, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+  // -----------------------------------------------------------------------------------
+
+  @OnClick(R.id.btn_demo_timing_1)
+  public void btn1_RunSingleTaskAfter2s() {
+    _log(String.format("A1 [%s] --- BTN click", _getCurrentTimestamp()));
+
+    Flowable.timer(2, TimeUnit.SECONDS) //
+        .subscribe(
+            new DefaultSubscriber<Long>() {
+              @Override
+              public void onNext(Long number) {
+                _log(String.format("A1 [%s]     NEXT", _getCurrentTimestamp()));
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+              }
+
+              @Override
+              public void onComplete() {
+                _log(String.format("A1 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_demo_timing_2)
+  public void btn2_RunTask_IntervalOf1s() {
+    if (_subscriber1 != null && !_subscriber1.isDisposed()) {
+      _subscriber1.dispose();
+      _log(String.format("B2 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
+      return;
     }
 
-    @OnClick(R.id.btn_demo_timing_2)
-    public void btn2_RunTask_IntervalOf1s() {
-        if (_subscriber1 != null && !_subscriber1.isDisposed()) {
-            _subscriber1.dispose();
-            _log(String.format("B2 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
-            return;
-        }
-
-        _log(String.format("B2 [%s] --- BTN click", _getCurrentTimestamp()));
+    _log(String.format("B2 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        _subscriber1 = new DisposableSubscriber<Long>() {
-            @Override
-            public void onComplete() {
-                _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
-            }
+    _subscriber1 =
+        new DisposableSubscriber<Long>() {
+          @Override
+          public void onComplete() {
+            _log(String.format("B2 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+          }
 
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "something went wrong in TimingDemoFragment example");
-            }
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "something went wrong in TimingDemoFragment example");
+          }
 
-            @Override
-            public void onNext(Long number) {
-                _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
-            }
+          @Override
+          public void onNext(Long number) {
+            _log(String.format("B2 [%s]     NEXT", _getCurrentTimestamp()));
+          }
         };
 
-        Flowable
-              .interval(1, TimeUnit.SECONDS)
-              .subscribe(_subscriber1);
-    }
-
-    @OnClick(R.id.btn_demo_timing_3)
-    public void btn3_RunTask_IntervalOf1s_StartImmediately() {
-        if (_subscriber2 != null && !_subscriber2.isDisposed()) {
-            _subscriber2.dispose();
-            _log(String.format("C3 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
-            return;
-        }
-
-        _log(String.format("C3 [%s] --- BTN click", _getCurrentTimestamp()));
-
-        _subscriber2 = new DisposableSubscriber<Long>() {
-            @Override
-            public void onNext(Long number) {
-                _log(String.format("C3 [%s]     NEXT", _getCurrentTimestamp()));
-            }
-
-            @Override
-            public void onComplete() {
-                _log(String.format("C3 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                Timber.e(e, "something went wrong in TimingDemoFragment example");
-            }
+    Flowable.interval(1, TimeUnit.SECONDS).subscribe(_subscriber1);
+  }
 
-        };
-
-        Flowable
-              .interval(0, 1, TimeUnit.SECONDS)
-              .subscribe(_subscriber2);
+  @OnClick(R.id.btn_demo_timing_3)
+  public void btn3_RunTask_IntervalOf1s_StartImmediately() {
+    if (_subscriber2 != null && !_subscriber2.isDisposed()) {
+      _subscriber2.dispose();
+      _log(String.format("C3 [%s] XXX BTN KILLED", _getCurrentTimestamp()));
+      return;
     }
 
-    @OnClick(R.id.btn_demo_timing_4)
-    public void btn4_RunTask5Times_IntervalOf3s() {
-        _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));
-
-        Flowable
-              .interval(3, TimeUnit.SECONDS)
-              .take(5)
-              .subscribe(new DefaultSubscriber<Long>() {
-                  @Override
-                  public void onNext(Long number) {
-                      _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "something went wrong in TimingDemoFragment example");
-                  }
-
-                  @Override
-                  public void onComplete() {
-                      _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
-                  }
-
-              });
-    }
+    _log(String.format("C3 [%s] --- BTN click", _getCurrentTimestamp()));
 
-    @OnClick(R.id.btn_demo_timing_5)
-    public void btn5_RunTask5Times_IntervalOf3s() {
-        _log(String.format("D5 [%s] --- BTN click", _getCurrentTimestamp()));
-
-        Flowable
-              .just("Do task A right away")
-              .doOnNext(input -> _log(String.format("D5 %s [%s]", input, _getCurrentTimestamp())))
-              .delay(1, TimeUnit.SECONDS)
-              .doOnNext(oldInput -> _log(String.format("D5 %s [%s]",
-                                                       "Doing Task B after a delay",
-                                                       _getCurrentTimestamp())))
-              .subscribe(new DefaultSubscriber<String>() {
-                  @Override
-                  public void onComplete() {
-                      _log(String.format("D5 [%s] XXX COMPLETE", _getCurrentTimestamp()));
-                  }
-
-                  @Override
-                  public void onError(Throwable e) {
-                      Timber.e(e, "something went wrong in TimingDemoFragment example");
-                  }
-
-                  @Override
-                  public void onNext(String number) {
-                      _log(String.format("D5 [%s]     NEXT", _getCurrentTimestamp()));
-                  }
-              });
-    }
+    _subscriber2 =
+        new DisposableSubscriber<Long>() {
+          @Override
+          public void onNext(Long number) {
+            _log(String.format("C3 [%s]     NEXT", _getCurrentTimestamp()));
+          }
 
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
+          @Override
+          public void onComplete() {
+            _log(String.format("C3 [%s] XXXX COMPLETE", _getCurrentTimestamp()));
+          }
 
-    @OnClick(R.id.btn_clr)
-    public void OnClearLog() {
-        _logs = new ArrayList<>();
-        _adapter.clear();
-    }
+          @Override
+          public void onError(Throwable e) {
+            Timber.e(e, "something went wrong in TimingDemoFragment example");
+          }
+        };
 
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
+    Flowable.interval(0, 1, TimeUnit.SECONDS).subscribe(_subscriber2);
+  }
 
-    private void _log(String logMsg) {
-        _logs.add(0, String.format(logMsg + " [MainThread: %b]", getMainLooper() == myLooper()));
+  @OnClick(R.id.btn_demo_timing_4)
+  public void btn4_RunTask5Times_IntervalOf3s() {
+    _log(String.format("D4 [%s] --- BTN click", _getCurrentTimestamp()));
 
-        // You can only do below stuff on main thread.
-        new Handler(getMainLooper()).post(() -> {
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        });
-    }
+    Flowable.interval(3, TimeUnit.SECONDS)
+        .take(5)
+        .subscribe(
+            new DefaultSubscriber<Long>() {
+              @Override
+              public void onNext(Long number) {
+                _log(String.format("D4 [%s]     NEXT", _getCurrentTimestamp()));
+              }
 
-    private String _getCurrentTimestamp() {
-        return new SimpleDateFormat("k:m:s:S a", Locale.getDefault()).format(new Date());
-    }
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+              }
+
+              @Override
+              public void onComplete() {
+                _log(String.format("D4 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+              }
+            });
+  }
+
+  @OnClick(R.id.btn_demo_timing_5)
+  public void btn5_RunTask5Times_IntervalOf3s() {
+    _log(String.format("D5 [%s] --- BTN click", _getCurrentTimestamp()));
+
+    Flowable.just("Do task A right away")
+        .doOnNext(input -> _log(String.format("D5 %s [%s]", input, _getCurrentTimestamp())))
+        .delay(1, TimeUnit.SECONDS)
+        .doOnNext(
+            oldInput ->
+                _log(
+                    String.format(
+                        "D5 %s [%s]", "Doing Task B after a delay", _getCurrentTimestamp())))
+        .subscribe(
+            new DefaultSubscriber<String>() {
+              @Override
+              public void onComplete() {
+                _log(String.format("D5 [%s] XXX COMPLETE", _getCurrentTimestamp()));
+              }
+
+              @Override
+              public void onError(Throwable e) {
+                Timber.e(e, "something went wrong in TimingDemoFragment example");
+              }
+
+              @Override
+              public void onNext(String number) {
+                _log(String.format("D5 [%s]     NEXT", _getCurrentTimestamp()));
+              }
+            });
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Method that help wiring up the example (irrelevant to RxJava)
+
+  @OnClick(R.id.btn_clr)
+  public void OnClearLog() {
+    _logs = new ArrayList<>();
+    _adapter.clear();
+  }
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+    _logs.add(0, String.format(logMsg + " [MainThread: %b]", getMainLooper() == myLooper()));
+
+    // You can only do below stuff on main thread.
+    new Handler(getMainLooper())
+        .post(
+            () -> {
+              _adapter.clear();
+              _adapter.addAll(_logs);
+            });
+  }
+
+  private String _getCurrentTimestamp() {
+    return new SimpleDateFormat("k:m:s:S a", Locale.getDefault()).format(new Date());
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
index 5de559f9..48cc49fd 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAdapter.java
@@ -13,92 +13,88 @@
 import java.util.ArrayList;
 import java.util.List;
 
-/**
- * There isn't anything specific to Pagination here.
- * Just wiring for the example
- */
+/** There isn't anything specific to Pagination here. Just wiring for the example */
 class PaginationAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
-    private static final int ITEM_LOG = 0;
-    private static final int ITEM_BTN = 1;
+  private static final int ITEM_LOG = 0;
+  private static final int ITEM_BTN = 1;
 
-    private final List<String> _items = new ArrayList<>();
-    private final RxBus _bus;
+  private final List<String> _items = new ArrayList<>();
+  private final RxBus _bus;
 
-    PaginationAdapter(RxBus bus) {
-        _bus = bus;
-    }
-
-    void addItems(List<String> items) {
-        _items.addAll(items);
-    }
+  PaginationAdapter(RxBus bus) {
+    _bus = bus;
+  }
 
-    @Override
-    public int getItemViewType(int position) {
-        if (position == _items.size()) {
-            return ITEM_BTN;
-        }
+  void addItems(List<String> items) {
+    _items.addAll(items);
+  }
 
-        return ITEM_LOG;
+  @Override
+  public int getItemViewType(int position) {
+    if (position == _items.size()) {
+      return ITEM_BTN;
     }
 
-    @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        switch (viewType) {
-            case ITEM_BTN:
-                return ItemBtnViewHolder.create(parent);
-            default:
-                return ItemLogViewHolder.create(parent);
-        }
-    }
+    return ITEM_LOG;
+  }
 
-    @Override
-    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
-        switch (getItemViewType(position)) {
-            case ITEM_LOG:
-                ((ItemLogViewHolder) holder).bindContent(_items.get(position));
-                return;
-            case ITEM_BTN:
-                ((ItemBtnViewHolder) holder).bindContent(_bus);
-        }
+  @Override
+  public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+    switch (viewType) {
+      case ITEM_BTN:
+        return ItemBtnViewHolder.create(parent);
+      default:
+        return ItemLogViewHolder.create(parent);
     }
-
-    @Override
-    public int getItemCount() {
-        return _items.size() + 1; // add 1 for paging button
+  }
+
+  @Override
+  public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+    switch (getItemViewType(position)) {
+      case ITEM_LOG:
+        ((ItemLogViewHolder) holder).bindContent(_items.get(position));
+        return;
+      case ITEM_BTN:
+        ((ItemBtnViewHolder) holder).bindContent(_bus);
     }
+  }
 
-    private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
-        ItemLogViewHolder(View itemView) {
-            super(itemView);
-        }
+  @Override
+  public int getItemCount() {
+    return _items.size() + 1; // add 1 for paging button
+  }
 
-        static ItemLogViewHolder create(ViewGroup parent) {
-            return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
-                  .inflate(R.layout.item_log, parent, false));
-        }
+  private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
+    ItemLogViewHolder(View itemView) {
+      super(itemView);
+    }
 
-        void bindContent(String content) {
-            ((TextView) itemView).setText(content);
-        }
+    static ItemLogViewHolder create(ViewGroup parent) {
+      return new ItemLogViewHolder(
+          LayoutInflater.from(parent.getContext()).inflate(R.layout.item_log, parent, false));
     }
 
-    static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
-        ItemBtnViewHolder(View itemView) {
-            super(itemView);
-        }
+    void bindContent(String content) {
+      ((TextView) itemView).setText(content);
+    }
+  }
 
-        static ItemBtnViewHolder create(ViewGroup parent) {
-            return new ItemBtnViewHolder(LayoutInflater.from(parent.getContext())
-                  .inflate(R.layout.item_btn, parent, false));
-        }
+  static class ItemBtnViewHolder extends RecyclerView.ViewHolder {
+    ItemBtnViewHolder(View itemView) {
+      super(itemView);
+    }
 
-        void bindContent(RxBus bus) {
-            ((Button) itemView).setText(R.string.btn_demo_pagination_more);
-            itemView.setOnClickListener(v -> bus.send(new ItemBtnViewHolder.PageEvent()));
-        }
+    static ItemBtnViewHolder create(ViewGroup parent) {
+      return new ItemBtnViewHolder(
+          LayoutInflater.from(parent.getContext()).inflate(R.layout.item_btn, parent, false));
+    }
 
-        static class PageEvent {
-        }
+    void bindContent(RxBus bus) {
+      ((Button) itemView).setText(R.string.btn_demo_pagination_more);
+      itemView.setOnClickListener(v -> bus.send(new ItemBtnViewHolder.PageEvent()));
     }
+
+    static class PageEvent {}
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
index ece28f76..75d8adeb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoAdapter.java
@@ -10,62 +10,60 @@
 import java.util.ArrayList;
 import java.util.List;
 
-class PaginationAutoAdapter
-      extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
+class PaginationAutoAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
 
-    private static final int ITEM_LOG = 0;
+  private static final int ITEM_LOG = 0;
 
-    private final List<String> _items = new ArrayList<>();
-    private final RxBus _bus;
+  private final List<String> _items = new ArrayList<>();
+  private final RxBus _bus;
 
-    PaginationAutoAdapter(RxBus bus) {
-        _bus = bus;
-    }
+  PaginationAutoAdapter(RxBus bus) {
+    _bus = bus;
+  }
 
-    @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        return ItemLogViewHolder.create(parent);
-    }
+  @Override
+  public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+    return ItemLogViewHolder.create(parent);
+  }
 
-    @Override
-    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
-        ((ItemLogViewHolder) holder).bindContent(_items.get(position));
+  @Override
+  public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
+    ((ItemLogViewHolder) holder).bindContent(_items.get(position));
 
-        boolean lastPositionReached = position == _items.size() - 1;
-        if (lastPositionReached) {
-            _bus.send(new PageEvent());
-        }
+    boolean lastPositionReached = position == _items.size() - 1;
+    if (lastPositionReached) {
+      _bus.send(new PageEvent());
     }
+  }
 
-    @Override
-    public int getItemViewType(int position) {
-        return ITEM_LOG;
-    }
+  @Override
+  public int getItemViewType(int position) {
+    return ITEM_LOG;
+  }
 
-    @Override
-    public int getItemCount() {
-        return _items.size();
-    }
+  @Override
+  public int getItemCount() {
+    return _items.size();
+  }
 
-    void addItems(List<String> items) {
-        _items.addAll(items);
-    }
+  void addItems(List<String> items) {
+    _items.addAll(items);
+  }
 
-    private static class ItemLogViewHolder
-          extends RecyclerView.ViewHolder {
-        ItemLogViewHolder(View itemView) {
-            super(itemView);
-        }
+  private static class ItemLogViewHolder extends RecyclerView.ViewHolder {
+    ItemLogViewHolder(View itemView) {
+      super(itemView);
+    }
 
-        static ItemLogViewHolder create(ViewGroup parent) {
-            return new ItemLogViewHolder(LayoutInflater.from(parent.getContext())
-                                               .inflate(R.layout.item_log, parent, false));
-        }
+    static ItemLogViewHolder create(ViewGroup parent) {
+      return new ItemLogViewHolder(
+          LayoutInflater.from(parent.getContext()).inflate(R.layout.item_log, parent, false));
+    }
 
-        void bindContent(String content) {
-            ((TextView) itemView).setText(content);
-        }
+    void bindContent(String content) {
+      ((TextView) itemView).setText(content);
     }
+  }
 
-    static class PageEvent { }
+  static class PageEvent {}
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
index 607a38d0..e90d923b 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationAutoFragment.java
@@ -23,109 +23,113 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-public class PaginationAutoFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_paging) RecyclerView _pagingList;
-    @BindView(R.id.progress_paging) ProgressBar _progressBar;
-
-    private PaginationAutoAdapter _adapter;
-    private RxBus _bus;
-    private CompositeDisposable _disposables;
-    private PublishProcessor<Integer> _paginator;
-    private boolean _requestUnderWay = false;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-
-        _bus = ((MainActivity) getActivity()).getRxBusSingleton();
-
-        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
-        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
-        _pagingList.setLayoutManager(layoutManager);
-
-        _adapter = new PaginationAutoAdapter(_bus);
-        _pagingList.setAdapter(_adapter);
-
-        _paginator = PublishProcessor.create();
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-        _disposables = new CompositeDisposable();
-
-        Disposable d2 = _paginator
-              .onBackpressureDrop()
-              .doOnNext(i -> {
+public class PaginationAutoFragment extends BaseFragment {
+
+  @BindView(R.id.list_paging)
+  RecyclerView _pagingList;
+
+  @BindView(R.id.progress_paging)
+  ProgressBar _progressBar;
+
+  private PaginationAutoAdapter _adapter;
+  private RxBus _bus;
+  private CompositeDisposable _disposables;
+  private PublishProcessor<Integer> _paginator;
+  private boolean _requestUnderWay = false;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+
+    _bus = ((MainActivity) getActivity()).getRxBusSingleton();
+
+    LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
+    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
+    _pagingList.setLayoutManager(layoutManager);
+
+    _adapter = new PaginationAutoAdapter(_bus);
+    _pagingList.setAdapter(_adapter);
+
+    _paginator = PublishProcessor.create();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    _disposables = new CompositeDisposable();
+
+    Disposable d2 =
+        _paginator
+            .onBackpressureDrop()
+            .doOnNext(
+                i -> {
                   _requestUnderWay = true;
                   _progressBar.setVisibility(View.VISIBLE);
-              })
-              .concatMap(this::_itemsFromNetworkCall)
-              .observeOn(AndroidSchedulers.mainThread())
-              .map(items -> {
+                })
+            .concatMap(this::_itemsFromNetworkCall)
+            .observeOn(AndroidSchedulers.mainThread())
+            .map(
+                items -> {
                   _adapter.addItems(items);
                   _adapter.notifyDataSetChanged();
 
                   return items;
-              })
-              .doOnNext(i -> {
+                })
+            .doOnNext(
+                i -> {
                   _requestUnderWay = false;
                   _progressBar.setVisibility(View.INVISIBLE);
-              })
-              .subscribe();
+                })
+            .subscribe();
 
-        // I'm using an RxBus purely to hear from a nested button click
-        // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
+    // I'm using an RxBus purely to hear from a nested button click
+    // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
 
-        Disposable d1 = _bus
-              .asFlowable()
-              .filter(o -> !_requestUnderWay)
-              .subscribe(event -> {
+    Disposable d1 =
+        _bus.asFlowable()
+            .filter(o -> !_requestUnderWay)
+            .subscribe(
+                event -> {
                   if (event instanceof PaginationAutoAdapter.PageEvent) {
 
-                      // trigger the paginator for the next event
-                      int nextPage = _adapter.getItemCount();
-                      _paginator.onNext(nextPage);
+                    // trigger the paginator for the next event
+                    int nextPage = _adapter.getItemCount();
+                    _paginator.onNext(nextPage);
                   }
-              });
-
-        _disposables.add(d1);
-        _disposables.add(d2);
-
-        _paginator.onNext(0);
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-        _disposables.clear();
-    }
-
-    /**
-     * Fake Observable that simulates a network call and then sends down a list of items
-     */
-    private Flowable<List<String>> _itemsFromNetworkCall(int pageStart) {
-        return Flowable
-              .just(true)
-              .observeOn(AndroidSchedulers.mainThread())
-              .delay(2, TimeUnit.SECONDS)
-              .map(dummy -> {
-                  List<String> items = new ArrayList<>();
-                  for (int i = 0; i < 10; i++) {
-                      items.add("Item " + (pageStart + i));
-                  }
-                  return items;
-              });
-    }
+                });
+
+    _disposables.add(d1);
+    _disposables.add(d2);
+
+    _paginator.onNext(0);
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _disposables.clear();
+  }
+
+  /** Fake Observable that simulates a network call and then sends down a list of items */
+  private Flowable<List<String>> _itemsFromNetworkCall(int pageStart) {
+    return Flowable.just(true)
+        .observeOn(AndroidSchedulers.mainThread())
+        .delay(2, TimeUnit.SECONDS)
+        .map(
+            dummy -> {
+              List<String> items = new ArrayList<>();
+              for (int i = 0; i < 10; i++) {
+                items.add("Item " + (pageStart + i));
+              }
+              return items;
+            });
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
index c7042d99..bfe727f1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/pagination/PaginationFragment.java
@@ -23,42 +23,47 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-public class PaginationFragment
-      extends BaseFragment {
-
-    @BindView(R.id.list_paging) RecyclerView _pagingList;
-    @BindView(R.id.progress_paging) ProgressBar _progressBar;
-    private PaginationAdapter _adapter;
-    private RxBus _bus;
-    private CompositeDisposable _disposables;
-    private PublishProcessor<Integer> _paginator;
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-
-        _bus = ((MainActivity) getActivity()).getRxBusSingleton();
-
-        LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
-        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
-        _pagingList.setLayoutManager(layoutManager);
-
-        _adapter = new PaginationAdapter(_bus);
-        _pagingList.setAdapter(_adapter);
-
-        _paginator = PublishProcessor.create();
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-        _disposables = new CompositeDisposable();
-
-        Disposable d2 = _paginator
-              .onBackpressureDrop()
-              .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))
-              .observeOn(AndroidSchedulers.mainThread())
-              .map(items -> {
+public class PaginationFragment extends BaseFragment {
+
+  @BindView(R.id.list_paging)
+  RecyclerView _pagingList;
+
+  @BindView(R.id.progress_paging)
+  ProgressBar _progressBar;
+
+  private PaginationAdapter _adapter;
+  private RxBus _bus;
+  private CompositeDisposable _disposables;
+  private PublishProcessor<Integer> _paginator;
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+
+    _bus = ((MainActivity) getActivity()).getRxBusSingleton();
+
+    LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
+    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
+    _pagingList.setLayoutManager(layoutManager);
+
+    _adapter = new PaginationAdapter(_bus);
+    _pagingList.setAdapter(_adapter);
+
+    _paginator = PublishProcessor.create();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    _disposables = new CompositeDisposable();
+
+    Disposable d2 =
+        _paginator
+            .onBackpressureDrop()
+            .concatMap(nextPage -> _itemsFromNetworkCall(nextPage + 1, 10))
+            .observeOn(AndroidSchedulers.mainThread())
+            .map(
+                items -> {
                   int start = _adapter.getItemCount() - 1;
 
                   _adapter.addItems(items);
@@ -67,60 +72,57 @@ public void onStart() {
                   _progressBar.setVisibility(View.INVISIBLE);
 
                   return items;
-              })
-              .subscribe();
-
-        // I'm using an Rxbus purely to hear from a nested button click
-        // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
-        Disposable d1 = _bus
-              .asFlowable()
-              .subscribe(event -> {
+                })
+            .subscribe();
+
+    // I'm using an Rxbus purely to hear from a nested button click
+    // we don't really need Rx for this part. it's just easy ¯\_(ツ)_/¯
+    Disposable d1 =
+        _bus.asFlowable()
+            .subscribe(
+                event -> {
                   if (event instanceof PaginationAdapter.ItemBtnViewHolder.PageEvent) {
 
-                      // trigger the paginator for the next event
-                      int nextPage = _adapter.getItemCount() - 1;
-                      _paginator.onNext(nextPage);
-
-                  }
-              });
-
-        _disposables.add(d1);
-        _disposables.add(d2);
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-        _disposables.clear();
-    }
-
-    /**
-     * Fake Observable that simulates a network call and then sends down a list of items
-     */
-    private Flowable<List<String>> _itemsFromNetworkCall(int start, int count) {
-        return Flowable
-              .just(true)
-              .observeOn(AndroidSchedulers.mainThread())
-              .doOnNext(dummy -> _progressBar.setVisibility(View.VISIBLE))
-              .delay(2, TimeUnit.SECONDS)
-              .map(dummy -> {
-                  List<String> items = new ArrayList<>();
-                  for (int i = 0; i < count; i++) {
-                      items.add("Item " + (start + i));
+                    // trigger the paginator for the next event
+                    int nextPage = _adapter.getItemCount() - 1;
+                    _paginator.onNext(nextPage);
                   }
-                  return items;
-              });
-    }
-
-    // -----------------------------------------------------------------------------------
-    // WIRING up the views required for this example
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
+                });
+
+    _disposables.add(d1);
+    _disposables.add(d2);
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _disposables.clear();
+  }
+
+  /** Fake Observable that simulates a network call and then sends down a list of items */
+  private Flowable<List<String>> _itemsFromNetworkCall(int start, int count) {
+    return Flowable.just(true)
+        .observeOn(AndroidSchedulers.mainThread())
+        .doOnNext(dummy -> _progressBar.setVisibility(View.VISIBLE))
+        .delay(2, TimeUnit.SECONDS)
+        .map(
+            dummy -> {
+              List<String> items = new ArrayList<>();
+              for (int i = 0; i < count; i++) {
+                items.add("Item " + (start + i));
+              }
+              return items;
+            });
+  }
+
+  // -----------------------------------------------------------------------------------
+  // WIRING up the views required for this example
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_pagination, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
index ad7760fc..5bd61c7a 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/Contributor.java
@@ -1,6 +1,6 @@
 package com.morihacky.android.rxjava.retrofit;
 
 public class Contributor {
-    public String login;
-    public long contributions;
+  public String login;
+  public long contributions;
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
index d42c2ef9..21e32e8e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubApi.java
@@ -8,25 +8,19 @@
 
 public interface GithubApi {
 
-    /**
-     * See https://developer.github.com/v3/repos/#list-contributors
-     */
-    @GET("/repos/{owner}/{repo}/contributors")
-    Observable<List<Contributor>> contributors(@Path("owner") String owner,
-                                               @Path("repo") String repo);
+  /** See https://developer.github.com/v3/repos/#list-contributors */
+  @GET("/repos/{owner}/{repo}/contributors")
+  Observable<List<Contributor>> contributors(
+      @Path("owner") String owner, @Path("repo") String repo);
 
-    @GET("/repos/{owner}/{repo}/contributors")
-    List<Contributor> getContributors(@Path("owner") String owner, @Path("repo") String repo);
+  @GET("/repos/{owner}/{repo}/contributors")
+  List<Contributor> getContributors(@Path("owner") String owner, @Path("repo") String repo);
 
-    /**
-     * See https://developer.github.com/v3/users/
-     */
-    @GET("/users/{user}")
-    Observable<User> user(@Path("user") String user);
+  /** See https://developer.github.com/v3/users/ */
+  @GET("/users/{user}")
+  Observable<User> user(@Path("user") String user);
 
-    /**
-     * See https://developer.github.com/v3/users/
-     */
-    @GET("/users/{user}")
-    User getUser(@Path("user") String user);
-}
\ No newline at end of file
+  /** See https://developer.github.com/v3/users/ */
+  @GET("/users/{user}")
+  User getUser(@Path("user") String user);
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
index d7f24a88..3ab57571 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/GithubService.java
@@ -13,27 +13,34 @@
 
 public class GithubService {
 
-    private GithubService() {
+  private GithubService() {}
+
+  public static GithubApi createGithubService(final String githubToken) {
+    Retrofit.Builder builder =
+        new Retrofit.Builder()
+            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
+            .addConverterFactory(GsonConverterFactory.create())
+            .baseUrl("https://api.github.com");
+
+    if (!TextUtils.isEmpty(githubToken)) {
+
+      OkHttpClient client =
+          new OkHttpClient.Builder()
+              .addInterceptor(
+                  chain -> {
+                    Request request = chain.request();
+                    Request newReq =
+                        request
+                            .newBuilder()
+                            .addHeader("Authorization", format("token %s", githubToken))
+                            .build();
+                    return chain.proceed(newReq);
+                  })
+              .build();
+
+      builder.client(client);
     }
 
-    public static GithubApi createGithubService(final String githubToken) {
-        Retrofit.Builder builder = new Retrofit.Builder().addCallAdapterFactory(RxJava2CallAdapterFactory.create())
-              .addConverterFactory(GsonConverterFactory.create())
-              .baseUrl("https://api.github.com");
-
-        if (!TextUtils.isEmpty(githubToken)) {
-
-            OkHttpClient client = new OkHttpClient.Builder().addInterceptor(chain -> {
-                Request request = chain.request();
-                Request newReq = request.newBuilder()
-                      .addHeader("Authorization", format("token %s", githubToken))
-                      .build();
-                return chain.proceed(newReq);
-            }).build();
-
-            builder.client(client);
-        }
-
-        return builder.build().create(GithubApi.class);
-    }
+    return builder.build().create(GithubApi.class);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java b/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
index 32fa1043..90f7aa3d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/retrofit/User.java
@@ -1,6 +1,6 @@
 package com.morihacky.android.rxjava.retrofit;
 
 public class User {
-    public String name;
-    public String email;
+  public String name;
+  public String email;
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
index 12f97b9d..0e8f4fed 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBus.java
@@ -6,22 +6,20 @@
 import io.reactivex.BackpressureStrategy;
 import io.reactivex.Flowable;
 
-/**
- * courtesy: https://gist.github.com/benjchristensen/04eef9ca0851f3a5d7bf
- */
+/** courtesy: https://gist.github.com/benjchristensen/04eef9ca0851f3a5d7bf */
 public class RxBus {
 
-    private final Relay<Object> _bus = PublishRelay.create().toSerialized();
+  private final Relay<Object> _bus = PublishRelay.create().toSerialized();
 
-    public void send(Object o) {
-        _bus.accept(o);
-    }
+  public void send(Object o) {
+    _bus.accept(o);
+  }
 
-    public Flowable<Object> asFlowable() {
-        return _bus.toFlowable(BackpressureStrategy.LATEST);
-    }
+  public Flowable<Object> asFlowable() {
+    return _bus.toFlowable(BackpressureStrategy.LATEST);
+  }
 
-    public boolean hasObservers() {
-        return _bus.hasObservers();
-    }
-}
\ No newline at end of file
+  public boolean hasObservers() {
+    return _bus.hasObservers();
+  }
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
index 8eac88b7..f08ea85c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemoFragment.java
@@ -9,31 +9,29 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 
-public class RxBusDemoFragment
-      extends BaseFragment {
+public class RxBusDemoFragment extends BaseFragment {
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_demo, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
 
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
 
-        getActivity().getSupportFragmentManager()
-              .beginTransaction()
-              .replace(R.id.demo_rxbus_frag_1,
-                    new RxBusDemo_TopFragment()).replace(R.id.demo_rxbus_frag_2,
-              new RxBusDemo_Bottom3Fragment())
-              //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom2Fragment())
-              //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom1Fragment())
-              .commit();
-    }
+    getActivity()
+        .getSupportFragmentManager()
+        .beginTransaction()
+        .replace(R.id.demo_rxbus_frag_1, new RxBusDemo_TopFragment())
+        .replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom3Fragment())
+        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom2Fragment())
+        //.replace(R.id.demo_rxbus_frag_2, new RxBusDemo_Bottom1Fragment())
+        .commit();
+  }
 
-    public static class TapEvent {}
-}
\ No newline at end of file
+  public static class TapEvent {}
+}
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
index 91bc5cdb..1eb1e2ec 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom1Fragment.java
@@ -14,54 +14,53 @@
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 import io.reactivex.disposables.CompositeDisposable;
 
-public class RxBusDemo_Bottom1Fragment
-      extends BaseFragment {
+public class RxBusDemo_Bottom1Fragment extends BaseFragment {
 
-    @BindView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    private CompositeDisposable _disposables;
-    private RxBus _rxBus;
+  @BindView(R.id.demo_rxbus_tap_txt)
+  TextView _tapEventTxtShow;
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
+  private CompositeDisposable _disposables;
+  private RxBus _rxBus;
 
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-    }
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
 
-    @Override
-    public void onStart() {
-        super.onStart();
-        _disposables = new CompositeDisposable();
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
 
-        _disposables.add(_rxBus
-                               .asFlowable()
-                               .subscribe(event -> {
-                                   if (event instanceof RxBusDemoFragment.TapEvent) {
-                                       _showTapText();
-                                   }
-                               }));
-    }
+  @Override
+  public void onStart() {
+    super.onStart();
+    _disposables = new CompositeDisposable();
 
-    @Override
-    public void onStop() {
-        super.onStop();
-        _disposables.clear();
-    }
+    _disposables.add(
+        _rxBus
+            .asFlowable()
+            .subscribe(
+                event -> {
+                  if (event instanceof RxBusDemoFragment.TapEvent) {
+                    _showTapText();
+                  }
+                }));
+  }
 
-    private void _showTapText() {
-        _tapEventTxtShow.setVisibility(View.VISIBLE);
-        _tapEventTxtShow.setAlpha(1f);
-        ViewCompat
-              .animate(_tapEventTxtShow)
-              .alphaBy(-1f)
-              .setDuration(400);
-    }
+  @Override
+  public void onStop() {
+    super.onStop();
+    _disposables.clear();
+  }
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setAlpha(1f);
+    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
index 51e2e3c1..7cb08f4d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom2Fragment.java
@@ -18,79 +18,82 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
-public class RxBusDemo_Bottom2Fragment
-      extends BaseFragment {
-
-    @BindView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @BindView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
-
-    private RxBus _rxBus;
-    private CompositeDisposable _disposables;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-        _disposables = new CompositeDisposable();
-
-        Flowable<Object> tapEventEmitter = _rxBus
-              .asFlowable()
-              .share();
-
-        _disposables.add(tapEventEmitter.subscribe(event -> {
-            if (event instanceof RxBusDemoFragment.TapEvent) {
+public class RxBusDemo_Bottom2Fragment extends BaseFragment {
+
+  @BindView(R.id.demo_rxbus_tap_txt)
+  TextView _tapEventTxtShow;
+
+  @BindView(R.id.demo_rxbus_tap_count)
+  TextView _tapEventCountShow;
+
+  private RxBus _rxBus;
+  private CompositeDisposable _disposables;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    _disposables = new CompositeDisposable();
+
+    Flowable<Object> tapEventEmitter = _rxBus.asFlowable().share();
+
+    _disposables.add(
+        tapEventEmitter.subscribe(
+            event -> {
+              if (event instanceof RxBusDemoFragment.TapEvent) {
                 _showTapText();
-            }
-        }));
-
-        Flowable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
-        Flowable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
-
-        _disposables.add(debouncedBufferEmitter
-                               .observeOn(AndroidSchedulers.mainThread())
-                               .subscribe(taps -> {
-                                   _showTapCount(taps.size());
-                               }));
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-        _disposables.clear();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Helper to show the text via an animation
-
-    private void _showTapText() {
-        _tapEventTxtShow.setVisibility(View.VISIBLE);
-        _tapEventTxtShow.setAlpha(1f);
-        ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
-    }
-
-    private void _showTapCount(int size) {
-        _tapEventCountShow.setText(String.valueOf(size));
-        _tapEventCountShow.setVisibility(View.VISIBLE);
-        _tapEventCountShow.setScaleX(1f);
-        _tapEventCountShow.setScaleY(1f);
-        ViewCompat.animate(_tapEventCountShow)
-              .scaleXBy(-1f)
-              .scaleYBy(-1f)
-              .setDuration(800)
-              .setStartDelay(100);
-    }
+              }
+            }));
+
+    Flowable<Object> debouncedEmitter = tapEventEmitter.debounce(1, TimeUnit.SECONDS);
+    Flowable<List<Object>> debouncedBufferEmitter = tapEventEmitter.buffer(debouncedEmitter);
+
+    _disposables.add(
+        debouncedBufferEmitter
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe(
+                taps -> {
+                  _showTapCount(taps.size());
+                }));
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _disposables.clear();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Helper to show the text via an animation
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setAlpha(1f);
+    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+  }
+
+  private void _showTapCount(int size) {
+    _tapEventCountShow.setText(String.valueOf(size));
+    _tapEventCountShow.setVisibility(View.VISIBLE);
+    _tapEventCountShow.setScaleX(1f);
+    _tapEventCountShow.setScaleY(1f);
+    ViewCompat.animate(_tapEventCountShow)
+        .scaleXBy(-1f)
+        .scaleYBy(-1f)
+        .setDuration(800)
+        .setStartDelay(100);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
index ec5ea58a..d45ec46e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java
@@ -17,78 +17,83 @@
 import io.reactivex.flowables.ConnectableFlowable;
 import java.util.concurrent.TimeUnit;
 
-public class RxBusDemo_Bottom3Fragment
-      extends BaseFragment {
-
-    @BindView(R.id.demo_rxbus_tap_txt) TextView _tapEventTxtShow;
-    @BindView(R.id.demo_rxbus_tap_count) TextView _tapEventCountShow;
-    private RxBus _rxBus;
-    private CompositeDisposable _disposables;
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-    }
-
-    @Override
-    public void onStart() {
-        super.onStart();
-        _disposables = new CompositeDisposable();
-
-        ConnectableFlowable<Object> tapEventEmitter = _rxBus.asFlowable().publish();
-
-        _disposables//
-                    .add(tapEventEmitter.subscribe(event -> {
-                  if (event instanceof RxBusDemoFragment.TapEvent) {
-                      _showTapText();
-                  }
-              }));
-
-        _disposables
-              .add(tapEventEmitter.publish(stream ->
-                    stream.buffer(stream.debounce(1, TimeUnit.SECONDS)))
-                                  .observeOn(AndroidSchedulers.mainThread()).subscribe(taps -> {
-                        _showTapCount(taps.size());
-                    }));
-
-        _disposables.add(tapEventEmitter.connect());
-
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-        _disposables.clear();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Helper to show the text via an animation
-
-    private void _showTapText() {
-        _tapEventTxtShow.setVisibility(View.VISIBLE);
-        _tapEventTxtShow.setAlpha(1f);
-        ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
-    }
-
-    private void _showTapCount(int size) {
-        _tapEventCountShow.setText(String.valueOf(size));
-        _tapEventCountShow.setVisibility(View.VISIBLE);
-        _tapEventCountShow.setScaleX(1f);
-        _tapEventCountShow.setScaleY(1f);
-        ViewCompat.animate(_tapEventCountShow)
-              .scaleXBy(-1f)
-              .scaleYBy(-1f)
-              .setDuration(800)
-              .setStartDelay(100);
-    }
+public class RxBusDemo_Bottom3Fragment extends BaseFragment {
+
+  @BindView(R.id.demo_rxbus_tap_txt)
+  TextView _tapEventTxtShow;
+
+  @BindView(R.id.demo_rxbus_tap_count)
+  TextView _tapEventCountShow;
+
+  private RxBus _rxBus;
+  private CompositeDisposable _disposables;
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_bottom, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
+
+  @Override
+  public void onStart() {
+    super.onStart();
+    _disposables = new CompositeDisposable();
+
+    ConnectableFlowable<Object> tapEventEmitter = _rxBus.asFlowable().publish();
+
+    _disposables //
+        .add(
+        tapEventEmitter.subscribe(
+            event -> {
+              if (event instanceof RxBusDemoFragment.TapEvent) {
+                _showTapText();
+              }
+            }));
+
+    _disposables.add(
+        tapEventEmitter
+            .publish(stream -> stream.buffer(stream.debounce(1, TimeUnit.SECONDS)))
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe(
+                taps -> {
+                  _showTapCount(taps.size());
+                }));
+
+    _disposables.add(tapEventEmitter.connect());
+  }
+
+  @Override
+  public void onStop() {
+    super.onStop();
+    _disposables.clear();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Helper to show the text via an animation
+
+  private void _showTapText() {
+    _tapEventTxtShow.setVisibility(View.VISIBLE);
+    _tapEventTxtShow.setAlpha(1f);
+    ViewCompat.animate(_tapEventTxtShow).alphaBy(-1f).setDuration(400);
+  }
+
+  private void _showTapCount(int size) {
+    _tapEventCountShow.setText(String.valueOf(size));
+    _tapEventCountShow.setVisibility(View.VISIBLE);
+    _tapEventCountShow.setScaleX(1f);
+    _tapEventCountShow.setScaleY(1f);
+    ViewCompat.animate(_tapEventCountShow)
+        .scaleXBy(-1f)
+        .scaleYBy(-1f)
+        .setDuration(800)
+        .setStartDelay(100);
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
index bab619fd..7d6c58fb 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_TopFragment.java
@@ -11,30 +11,28 @@
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.fragments.BaseFragment;
 
-public class RxBusDemo_TopFragment
-      extends BaseFragment {
+public class RxBusDemo_TopFragment extends BaseFragment {
 
-    private RxBus _rxBus;
+  private RxBus _rxBus;
 
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_rxbus_top, container, false);
+    ButterKnife.bind(this, layout);
+    return layout;
+  }
 
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
-    }
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _rxBus = ((MainActivity) getActivity()).getRxBusSingleton();
+  }
 
-    @OnClick(R.id.btn_demo_rxbus_tap)
-    public void onTapButtonClicked() {
-        if (_rxBus.hasObservers()) {
-            _rxBus.send(new RxBusDemoFragment.TapEvent());
-        }
+  @OnClick(R.id.btn_demo_rxbus_tap)
+  public void onTapButtonClicked() {
+    if (_rxBus.hasObservers()) {
+      _rxBus.send(new RxBusDemoFragment.TapEvent());
     }
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java b/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
index 835a0287..a6ec55cf 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/MyVolley.java
@@ -8,21 +8,21 @@
  * Helper class that is used to provide references to initialized RequestQueue(s) and ImageLoader(s)
  */
 public class MyVolley {
-    private static RequestQueue mRequestQueue;
+  private static RequestQueue mRequestQueue;
 
-    private MyVolley() {
-        // no instances
-    }
+  private MyVolley() {
+    // no instances
+  }
 
-    public static void init(Context context) {
-        mRequestQueue = Volley.newRequestQueue(context);
-    }
+  public static void init(Context context) {
+    mRequestQueue = Volley.newRequestQueue(context);
+  }
 
-    static RequestQueue getRequestQueue() {
-        if (mRequestQueue != null) {
-            return mRequestQueue;
-        } else {
-            throw new IllegalStateException("RequestQueue not initialized");
-        }
+  static RequestQueue getRequestQueue() {
+    if (mRequestQueue != null) {
+      return mRequestQueue;
+    } else {
+      throw new IllegalStateException("RequestQueue not initialized");
     }
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
index 9a8e9d2f..aaa55d08 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/volley/VolleyDemoFragment.java
@@ -33,145 +33,148 @@
 import org.json.JSONObject;
 import timber.log.Timber;
 
-public class VolleyDemoFragment
-      extends BaseFragment {
-
-    public static final String TAG = "VolleyDemoFragment";
-
-    @BindView(R.id.list_threading_log) ListView _logsList;
-
-    private List<String> _logs;
-    private LogAdapter _adapter;
-    private Unbinder unbinder;
-
-    private CompositeDisposable _disposables = new CompositeDisposable();
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_volley, container, false);
-        unbinder = ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-        _disposables.clear();
-    }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        unbinder.unbind();
-    }
-
-    /**
-     * Creates and returns an observable generated from the Future returned from
-     * {@code getRouteData()}. The observable can then be subscribed to as shown in
-     * {@code startVolleyRequest()}
-     * @return Observable<JSONObject>
-     */
-    public Flowable<JSONObject> newGetRouteData() {
-        return Flowable.defer(() -> {
-            try {
-                return Flowable.just(getRouteData());
-            } catch (InterruptedException | ExecutionException e) {
-                Log.e("routes", e.getMessage());
-                return Flowable.error(e);
-            }
+public class VolleyDemoFragment extends BaseFragment {
+
+  public static final String TAG = "VolleyDemoFragment";
+
+  @BindView(R.id.list_threading_log)
+  ListView _logsList;
+
+  private List<String> _logs;
+  private LogAdapter _adapter;
+  private Unbinder unbinder;
+
+  private CompositeDisposable _disposables = new CompositeDisposable();
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+    View layout = inflater.inflate(R.layout.fragment_volley, container, false);
+    unbinder = ButterKnife.bind(this, layout);
+    return layout;
+  }
+
+  @Override
+  public void onActivityCreated(@Nullable Bundle savedInstanceState) {
+    super.onActivityCreated(savedInstanceState);
+    _setupLogger();
+  }
+
+  @Override
+  public void onPause() {
+    super.onPause();
+    _disposables.clear();
+  }
+
+  @Override
+  public void onDestroyView() {
+    super.onDestroyView();
+    unbinder.unbind();
+  }
+
+  /**
+   * Creates and returns an observable generated from the Future returned from {@code
+   * getRouteData()}. The observable can then be subscribed to as shown in {@code
+   * startVolleyRequest()}
+   *
+   * @return Observable<JSONObject>
+   */
+  public Flowable<JSONObject> newGetRouteData() {
+    return Flowable.defer(
+        () -> {
+          try {
+            return Flowable.just(getRouteData());
+          } catch (InterruptedException | ExecutionException e) {
+            Log.e("routes", e.getMessage());
+            return Flowable.error(e);
+          }
         });
-    }
-
-    @OnClick(R.id.btn_start_operation)
-    void startRequest() {
-        startVolleyRequest();
-    }
-
-    private void startVolleyRequest() {
-        DisposableSubscriber<JSONObject> d = new DisposableSubscriber<JSONObject>() {
-            @Override
-            public void onNext(JSONObject jsonObject) {
-                Log.e(TAG, "onNext " + jsonObject.toString());
-                _log("onNext " + jsonObject.toString());
-
-            }
-
-            @Override
-            public void onError(Throwable e) {
-                VolleyError cause = (VolleyError) e.getCause();
-                String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
-                Log.e(TAG, s);
-                Log.e(TAG, cause.toString());
-                _log("onError " + s);
-
-            }
-
-            @Override
-            public void onComplete() {
-                Log.e(TAG, "onCompleted");
-                Timber.d("----- onCompleted");
-                _log("onCompleted ");
-            }
+  }
+
+  @OnClick(R.id.btn_start_operation)
+  void startRequest() {
+    startVolleyRequest();
+  }
+
+  private void startVolleyRequest() {
+    DisposableSubscriber<JSONObject> d =
+        new DisposableSubscriber<JSONObject>() {
+          @Override
+          public void onNext(JSONObject jsonObject) {
+            Log.e(TAG, "onNext " + jsonObject.toString());
+            _log("onNext " + jsonObject.toString());
+          }
+
+          @Override
+          public void onError(Throwable e) {
+            VolleyError cause = (VolleyError) e.getCause();
+            String s = new String(cause.networkResponse.data, Charset.forName("UTF-8"));
+            Log.e(TAG, s);
+            Log.e(TAG, cause.toString());
+            _log("onError " + s);
+          }
+
+          @Override
+          public void onComplete() {
+            Log.e(TAG, "onCompleted");
+            Timber.d("----- onCompleted");
+            _log("onCompleted ");
+          }
         };
 
-        newGetRouteData()
-              .subscribeOn(Schedulers.io())
-              .observeOn(AndroidSchedulers.mainThread())
-              .subscribe(d);
-
-        _disposables.add(d);
-    }
-
-    /**
-     * Converts the Asynchronous Request into a Synchronous Future that can be used to
-     * block via {@code Future.get()}. Observables require blocking/synchronous functions
-     * @return JSONObject
-     * @throws ExecutionException
-     * @throws InterruptedException
-     */
-    private JSONObject getRouteData() throws ExecutionException, InterruptedException {
-        RequestFuture<JSONObject> future = RequestFuture.newFuture();
-        String url = "http://www.weather.com.cn/adat/sk/101010100.html";
-        JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, url, future, future);
-        MyVolley.getRequestQueue().add(req);
-        return future.get();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Methods that help wiring up the example (irrelevant to RxJava)
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        } else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
+    newGetRouteData()
+        .subscribeOn(Schedulers.io())
+        .observeOn(AndroidSchedulers.mainThread())
+        .subscribe(d);
+
+    _disposables.add(d);
+  }
+
+  /**
+   * Converts the Asynchronous Request into a Synchronous Future that can be used to block via
+   * {@code Future.get()}. Observables require blocking/synchronous functions
+   *
+   * @return JSONObject
+   * @throws ExecutionException
+   * @throws InterruptedException
+   */
+  private JSONObject getRouteData() throws ExecutionException, InterruptedException {
+    RequestFuture<JSONObject> future = RequestFuture.newFuture();
+    String url = "http://www.weather.com.cn/adat/sk/101010100.html";
+    JsonObjectRequest req = new JsonObjectRequest(Request.Method.GET, url, future, future);
+    MyVolley.getRequestQueue().add(req);
+    return future.get();
+  }
+
+  // -----------------------------------------------------------------------------------
+  // Methods that help wiring up the example (irrelevant to RxJava)
+
+  private void _setupLogger() {
+    _logs = new ArrayList<>();
+    _adapter = new LogAdapter(getActivity(), new ArrayList<>());
+    _logsList.setAdapter(_adapter);
+  }
+
+  private void _log(String logMsg) {
+
+    if (_isCurrentlyOnMainThread()) {
+      _logs.add(0, logMsg + " (main thread) ");
+      _adapter.clear();
+      _adapter.addAll(_logs);
+    } else {
+      _logs.add(0, logMsg + " (NOT main thread) ");
+
+      // You can only do below stuff on main thread.
+      new Handler(Looper.getMainLooper())
+          .post(
+              () -> {
                 _adapter.clear();
                 _adapter.addAll(_logs);
-            });
-        }
+              });
     }
+  }
 
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
+  private boolean _isCurrentlyOnMainThread() {
+    return Looper.myLooper() == Looper.getMainLooper();
+  }
 }
diff --git a/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java b/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java
index 0c0ea1e9..cfa108f1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/wiring/LogAdapter.java
@@ -5,10 +5,9 @@
 import com.morihacky.android.rxjava.R;
 import java.util.List;
 
-public class LogAdapter
-      extends ArrayAdapter<String> {
+public class LogAdapter extends ArrayAdapter<String> {
 
-    public LogAdapter(Context context, List<String> logs) {
-        super(context, R.layout.item_log, R.id.item_log, logs);
-    }
+  public LogAdapter(Context context, List<String> logs) {
+    super(context, R.layout.item_log, R.id.item_log, logs);
+  }
 }

From 3fd2dfbfe807fc772589c401be6dd346cd49c5c7 Mon Sep 17 00:00:00 2001
From: Jonathan Caryl <github@jonathancaryl.co.uk>
Date: Wed, 15 Mar 2017 15:04:36 +0000
Subject: [PATCH 245/260] further changes

---
 app/build.gradle                              | 25 +++++------
 .../android/rxjava/MainActivity.java          |  4 +-
 .../com/morihacky/android/rxjava/MyApp.java   |  6 +++
 .../rxjava/fragments/BufferDemoFragment.java  |  5 +--
 .../DebounceSearchEmitterFragment.java        |  7 ++-
 .../fragments/ExponentialBackoffFragment.java |  6 +--
 .../FormValidationCombineLatestFragment.java  | 12 ++---
 .../rxjava/fragments/RetrofitFragment.java    |  6 +--
 app/src/main/res/layout/fragment_buffer.xml   |  5 +--
 .../fragment_concurrency_schedulers.xml       |  3 +-
 app/src/main/res/layout/fragment_debounce.xml |  3 +-
 .../main/res/layout/fragment_demo_timing.xml  | 13 +++---
 .../fragment_double_binding_textview.xml      |  9 ++--
 .../layout/fragment_exponential_backoff.xml   |  5 +--
 .../fragment_form_validation_comb_latest.xml  |  9 ++--
 app/src/main/res/layout/fragment_main.xml     |  2 +-
 .../res/layout/fragment_network_detector.xml  |  1 -
 .../main/res/layout/fragment_pagination.xml   |  1 -
 app/src/main/res/layout/fragment_polling.xml  |  5 +--
 .../main/res/layout/fragment_pseudo_cache.xml | 15 ++++---
 .../layout/fragment_pseudo_cache_concat.xml   |  3 +-
 app/src/main/res/layout/fragment_retrofit.xml | 21 +++++----
 .../fragment_retrofit_async_task_death.xml    |  7 ++-
 .../res/layout/fragment_rotation_persist.xml  |  3 +-
 .../main/res/layout/fragment_rxbus_bottom.xml |  4 +-
 .../main/res/layout/fragment_rxbus_demo.xml   |  1 -
 .../res/layout/fragment_subject_timeout.xml   |  5 +--
 .../main/res/layout/fragment_timer_demo.xml   |  3 +-
 app/src/main/res/layout/fragment_volley.xml   |  5 +--
 app/src/main/res/layout/item_btn.xml          |  3 +-
 app/src/main/res/layout/item_log.xml          |  8 ++--
 app/src/main/res/layout/item_log_white.xml    |  5 +--
 app/src/main/res/values/strings.xml           | 44 +++++++++++++++++++
 33 files changed, 139 insertions(+), 115 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 3472af89..b17fcd0b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,10 +4,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'me.tatarka:gradle-retrolambda:3.2.5'
-        // can be removed with android-gradle plugin is upgraded to 2.2
-        // https://twitter.com/JakeWharton/status/760836175586267136
-        classpath 'me.tatarka.retrolambda.projectlombok:lombok.ast:0.2.3.a2'
+        classpath 'me.tatarka:gradle-retrolambda:3.6.0'
     }
 
     // Exclude the lombok version that the android plugin depends on.
@@ -19,10 +16,11 @@ apply plugin: 'me.tatarka.retrolambda'
 apply plugin: 'com.f2prateek.javafmt'
 
 ext {
-    okhttpVersion = "3.0.1"
-    retrofitVersion = "2.0.0"
-    sdkVersion = 24
-    supportLibVersion = "25.2.0"
+    okhttpVersion = '3.6.0'
+    retrofitVersion = "2.2.0"
+    sdkVersion = 25
+    supportLibVersion = '25.3.0'
+    leakCanaryVersion = '1.5'
     butterKnifeVersion = '8.5.1'
 }
 
@@ -34,7 +32,7 @@ dependencies {
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
     compile "com.jakewharton:butterknife:$butterKnifeVersion"
     annotationProcessor "com.jakewharton:butterknife-compiler:$butterKnifeVersion"
-    compile 'com.jakewharton.timber:timber:2.4.2'
+    compile 'com.jakewharton.timber:timber:4.5.1'
     compile "com.squareup.retrofit2:retrofit:${retrofitVersion}"
     compile "com.squareup.retrofit2:converter-gson:${retrofitVersion}"
     compile "com.squareup.okhttp3:okhttp:${okhttpVersion}"
@@ -44,18 +42,15 @@ dependencies {
     // ----------------------------------
     //  Rx dependencies
 
-    compile 'io.reactivex.rxjava2:rxjava:2.0.1'
+    compile 'io.reactivex.rxjava2:rxjava:2.0.7'
 
     // Because RxAndroid releases are few and far between, it is recommended you also
     // explicitly depend on RxJava's latest version for bug fixes and new features.
     compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
-    // libs like rxbinding + rxjava-math haven't been ported to RxJava 2.x yet, so this helps
-    compile "com.github.akarnokd:rxjava2-interop:0.6.1"
-
-    compile 'io.reactivex:rxjava-math:1.0.0'
+    compile "com.github.akarnokd:rxjava2-extensions:0.16.0"
     compile 'com.jakewharton.rxrelay2:rxrelay:2.0.0'
-    compile 'com.jakewharton.rxbinding:rxbinding:0.2.0'
+    compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
     compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
 
     // ----------------------------------
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
index 8c5df2f4..068a393d 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MainActivity.java
@@ -2,13 +2,13 @@
 
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentActivity;
+import android.support.v7.app.AppCompatActivity;
 import com.morihacky.android.rxjava.fragments.MainFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist1WorkerFragment;
 import com.morihacky.android.rxjava.fragments.RotationPersist2WorkerFragment;
 import com.morihacky.android.rxjava.rxbus.RxBus;
 
-public class MainActivity extends FragmentActivity {
+public class MainActivity extends AppCompatActivity {
 
   private RxBus _rxBus = null;
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index 99adc071..a3b025ac 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -23,6 +23,12 @@ public static RefWatcher getRefWatcher() {
   public void onCreate() {
     super.onCreate();
 
+    if (LeakCanary.isInAnalyzerProcess(this)) {
+      // This process is dedicated to LeakCanary for heap analysis.
+      // You should not init your app in this process.
+      return;
+    }
+
     _instance = (MyApp) getApplicationContext();
     _refWatcher = LeakCanary.install(this);
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
index 85f618ef..bf51b85c 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/BufferDemoFragment.java
@@ -10,7 +10,7 @@
 import android.widget.Button;
 import android.widget.ListView;
 
-import com.jakewharton.rxbinding.view.RxView;
+import com.jakewharton.rxbinding2.view.RxView;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
 
@@ -20,7 +20,6 @@
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
-import hu.akarnokd.rxjava.interop.RxJavaInterop;
 import butterknife.Unbinder;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
@@ -91,7 +90,7 @@ public void onDestroyView() {
   // Main Rx entities
 
   private Disposable _getBufferedDisposable() {
-    return RxJavaInterop.toV2Observable(RxView.clickEvents(_tapBtn))
+    return RxView.clicks(_tapBtn)
         .map(
             onClickEvent -> {
               Timber.d("--------- GOT A TAP");
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
index 129f7b11..2d62cff7 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/DebounceSearchEmitterFragment.java
@@ -12,8 +12,8 @@
 import android.widget.EditText;
 import android.widget.ListView;
 
-import com.jakewharton.rxbinding.widget.RxTextView;
-import com.jakewharton.rxbinding.widget.TextViewTextChangeEvent;
+import com.jakewharton.rxbinding2.widget.RxTextView;
+import com.jakewharton.rxbinding2.widget.TextViewTextChangeEvent;
 import com.morihacky.android.rxjava.R;
 
 import java.util.ArrayList;
@@ -23,7 +23,6 @@
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.OnClick;
-import hu.akarnokd.rxjava.interop.RxJavaInterop;
 import butterknife.Unbinder;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
@@ -75,7 +74,7 @@ public void onActivityCreated(@Nullable Bundle savedInstanceState) {
     _setupLogger();
 
     _disposable =
-        RxJavaInterop.toV2Observable(RxTextView.textChangeEvents(_inputSearchText))
+        RxTextView.textChangeEvents(_inputSearchText)
             .debounce(400, TimeUnit.MILLISECONDS) // default Scheduler is Computation
             .filter(changes -> isNotNullOrEmpty(changes.text().toString()))
             .observeOn(AndroidSchedulers.mainThread())
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
index 0516b934..775feaef 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/ExponentialBackoffFragment.java
@@ -13,9 +13,9 @@
 import butterknife.OnClick;
 import com.morihacky.android.rxjava.R;
 import com.morihacky.android.rxjava.wiring.LogAdapter;
-import hu.akarnokd.rxjava.interop.RxJavaInterop;
 
 import butterknife.Unbinder;
+import hu.akarnokd.rxjava2.math.MathFlowable;
 import io.reactivex.Flowable;
 import io.reactivex.disposables.CompositeDisposable;
 import io.reactivex.functions.Function;
@@ -24,7 +24,6 @@
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import org.reactivestreams.Publisher;
-import rx.observables.MathObservable;
 import timber.log.Timber;
 
 import static android.os.Looper.getMainLooper;
@@ -131,8 +130,7 @@ public void onComplete() {
         .delay(
             integer -> {
               // Rx-y way of doing the Fibonnaci :P
-              return RxJavaInterop.toV2Flowable(
-                      MathObservable.sumInteger(rx.Observable.range(1, integer)))
+              return MathFlowable.sumInt(Flowable.range(1, integer))
                   .flatMap(
                       targetSecondDelay ->
                           Flowable.just(integer).delay(targetSecondDelay, TimeUnit.SECONDS));
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 07f8972d..48ac13f3 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -9,11 +9,12 @@
 import android.widget.TextView;
 import butterknife.BindView;
 import butterknife.ButterKnife;
-import com.jakewharton.rxbinding.widget.RxTextView;
+
+import com.jakewharton.rxbinding2.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
 
 import butterknife.Unbinder;
-import hu.akarnokd.rxjava.interop.RxJavaInterop;
+import io.reactivex.BackpressureStrategy;
 import io.reactivex.Flowable;
 import io.reactivex.subscribers.DisposableSubscriber;
 import timber.log.Timber;
@@ -47,10 +48,9 @@ public View onCreateView(
     View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
     unbinder = ButterKnife.bind(this, layout);
 
-    _emailChangeObservable = RxJavaInterop.toV2Flowable(RxTextView.textChanges(_email).skip(1));
-    _passwordChangeObservable =
-        RxJavaInterop.toV2Flowable(RxTextView.textChanges(_password).skip(1));
-    _numberChangeObservable = RxJavaInterop.toV2Flowable(RxTextView.textChanges(_number).skip(1));
+    _emailChangeObservable = RxTextView.textChanges(_email).skip(1).toFlowable(BackpressureStrategy.LATEST);
+    _passwordChangeObservable = RxTextView.textChanges(_password).skip(1).toFlowable(BackpressureStrategy.LATEST);
+    _numberChangeObservable = RxTextView.textChanges(_number).skip(1).toFlowable(BackpressureStrategy.LATEST);
 
     _combineLatestEvents();
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
index cb9eeb38..0626e5b0 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RetrofitFragment.java
@@ -158,9 +158,9 @@ public void onError(Throwable e) {
                   }
 
                   @Override
-                  public void onNext(Pair pair) {
-                    User user = ((Pair<User, Contributor>) pair).first;
-                    Contributor contributor = ((Pair<User, Contributor>) pair).second;
+                  public void onNext(Pair<User, Contributor> pair) {
+                    User user = pair.first;
+                    Contributor contributor = pair.second;
 
                     _adapter.add(
                         format(
diff --git a/app/src/main/res/layout/fragment_buffer.xml b/app/src/main/res/layout/fragment_buffer.xml
index f2bbaadf..86d70150 100644
--- a/app/src/main/res/layout/fragment_buffer.xml
+++ b/app/src/main/res/layout/fragment_buffer.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -21,8 +20,8 @@
         android:layout_width="match_parent"
         android:layout_marginLeft="90dp"
         android:layout_marginRight="90dp"
-        android:textSize="16dp"
-        android:text="tap me"
+        android:textSize="16sp"
+        android:text="@string/tap_me"
         />
 
     <ListView
diff --git a/app/src/main/res/layout/fragment_concurrency_schedulers.xml b/app/src/main/res/layout/fragment_concurrency_schedulers.xml
index 52656011..9b53fb99 100644
--- a/app/src/main/res/layout/fragment_concurrency_schedulers.xml
+++ b/app/src/main/res/layout/fragment_concurrency_schedulers.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -27,7 +26,7 @@
             android:layout_width="wrap_content"
             android:layout_marginLeft="20dp"
             android:textSize="16sp"
-            android:text="Start long operation"
+            android:text="@string/start_long_operation"
             />
 
         <ProgressBar
diff --git a/app/src/main/res/layout/fragment_debounce.xml b/app/src/main/res/layout/fragment_debounce.xml
index 4fadbfbb..e70a44cf 100644
--- a/app/src/main/res/layout/fragment_debounce.xml
+++ b/app/src/main/res/layout/fragment_debounce.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -27,7 +26,7 @@
             android:layout_height="match_parent"
             android:layout_width="0dp"
             android:textSize="16sp"
-            android:hint="Enter some search text"
+            android:hint="@string/enter_some_search_text"
             android:inputType="textNoSuggestions"
             />
 
diff --git a/app/src/main/res/layout/fragment_demo_timing.xml b/app/src/main/res/layout/fragment_demo_timing.xml
index e83be2be..0cb4286e 100644
--- a/app/src/main/res/layout/fragment_demo_timing.xml
+++ b/app/src/main/res/layout/fragment_demo_timing.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -38,7 +37,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="BTN 1"
+                android:text="@string/btn_1"
                 />
 
             <Button
@@ -46,7 +45,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="BTN 2"
+                android:text="@string/btn_2"
                 />
         </TableRow>
 
@@ -60,7 +59,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="BTN 3"
+                android:text="@string/btn_3"
                 />
 
             <Button
@@ -68,7 +67,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="BTN 4"
+                android:text="@string/btn_4"
                 />
         </TableRow>
 
@@ -82,7 +81,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="BTN 5"
+                android:text="@string/btn_5"
                 />
 
             <Button
@@ -91,7 +90,7 @@
                 android:layout_weight="1"
                 android:layout_height="wrap_content"
                 android:layout_width="wrap_content"
-                android:text="CLEAR LOG"
+                android:text="@string/clear_log"
                 />
         </TableRow>
     </TableLayout>
diff --git a/app/src/main/res/layout/fragment_double_binding_textview.xml b/app/src/main/res/layout/fragment_double_binding_textview.xml
index 9681c441..4d31e90d 100644
--- a/app/src/main/res/layout/fragment_double_binding_textview.xml
+++ b/app/src/main/res/layout/fragment_double_binding_textview.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -27,7 +26,7 @@
             android:layout_height="50dp"
             android:layout_width="0dp"
             android:gravity="center"
-            android:text="100"
+            android:text="@string/one_hundred"
             android:inputType="numberDecimal"
             />
 
@@ -36,7 +35,7 @@
             android:layout_height="50dp"
             android:layout_width="0dp"
             android:gravity="center"
-            android:text="+"
+            android:text="@string/plus"
             />
 
         <EditText
@@ -45,7 +44,7 @@
             android:layout_height="50dp"
             android:layout_width="0dp"
             android:gravity="center"
-            android:text="8"
+            android:text="@string/eight"
             android:inputType="numberDecimal"
             />
     </LinearLayout>
@@ -57,7 +56,7 @@
         android:layout_marginTop="10dp"
         android:gravity="center"
         android:textSize="45sp"
-        android:text="0"
+        android:text="@string/zero"
         />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_exponential_backoff.xml b/app/src/main/res/layout/fragment_exponential_backoff.xml
index 10ac11d6..2ac1e4fc 100644
--- a/app/src/main/res/layout/fragment_exponential_backoff.xml
+++ b/app/src/main/res/layout/fragment_exponential_backoff.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -27,7 +26,7 @@
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
-            android:text="Retry"
+            android:text="@string/retry"
             />
 
         <Button
@@ -35,7 +34,7 @@
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
-            android:text="Delay"
+            android:text="@string/delay"
             />
     </LinearLayout>
 
diff --git a/app/src/main/res/layout/fragment_form_validation_comb_latest.xml b/app/src/main/res/layout/fragment_form_validation_comb_latest.xml
index 6065a998..c30e7fd3 100644
--- a/app/src/main/res/layout/fragment_form_validation_comb_latest.xml
+++ b/app/src/main/res/layout/fragment_form_validation_comb_latest.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -25,7 +26,7 @@
             android:layout_height="wrap_content"
             android:layout_width="0dp"
             android:padding="10dp"
-            android:text="Enter a valid email below:"
+            android:text="@string/enter_a_valid_email_below"
             />
 
         <EditText
@@ -48,7 +49,7 @@
             android:layout_height="wrap_content"
             android:layout_width="0dp"
             android:padding="10dp"
-            android:text="password (> than 8 chrs):"
+            android:text="@string/password_than_8_chrs"
             />
 
         <EditText
@@ -71,7 +72,7 @@
             android:layout_height="wrap_content"
             android:layout_width="0dp"
             android:padding="10dp"
-            android:text="number (between 1 &amp; 100):"
+            android:text="@string/number_between_1_amp_100"
             />
 
         <EditText
@@ -91,7 +92,7 @@
         android:layout_width="wrap_content"
         android:layout_marginTop="10dp"
         android:padding="10dp"
-        android:text="Submit"
+        android:text="@string/submit"
         />
 
 </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 9de55c7c..51f0a694 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -1,4 +1,4 @@
-<ScrollView
+<?xml version="1.0" encoding="utf-8"?><ScrollView
     android:layout_height="match_parent"
     android:layout_width="match_parent"
     xmlns:android="http://schemas.android.com/apk/res/android"
diff --git a/app/src/main/res/layout/fragment_network_detector.xml b/app/src/main/res/layout/fragment_network_detector.xml
index 00fae860..b825cbf6 100644
--- a/app/src/main/res/layout/fragment_network_detector.xml
+++ b/app/src/main/res/layout/fragment_network_detector.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/fragment_pagination.xml b/app/src/main/res/layout/fragment_pagination.xml
index 2302145c..3e449c62 100644
--- a/app/src/main/res/layout/fragment_pagination.xml
+++ b/app/src/main/res/layout/fragment_pagination.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/fragment_polling.xml b/app/src/main/res/layout/fragment_polling.xml
index c10c3a10..9417b8a3 100644
--- a/app/src/main/res/layout/fragment_polling.xml
+++ b/app/src/main/res/layout/fragment_polling.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
@@ -26,7 +25,7 @@
             android:id="@+id/btn_start_simple_polling"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:text="Start simple polling"
+            android:text="@string/start_simple_polling"
             android:textSize="16sp"
             />
 
@@ -34,7 +33,7 @@
             android:id="@+id/btn_start_increasingly_delayed_polling"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:text="Start increasingly delayed polling"
+            android:text="@string/start_increasingly_delayed_polling"
             android:textSize="16sp"
             />
     </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_pseudo_cache.xml b/app/src/main/res/layout/fragment_pseudo_cache.xml
index 34ab83f5..ed7de8ee 100644
--- a/app/src/main/res/layout/fragment_pseudo_cache.xml
+++ b/app/src/main/res/layout/fragment_pseudo_cache.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
@@ -23,7 +24,7 @@
             android:background="@color/colorPrimary"
             android:gravity="center"
             android:padding="@dimen/text_micro"
-            android:text="Info about the demo will show up here"
+            android:text="@string/info_about_the_demo_will_show_up_here"
             android:textColor="@color/white"
             />
 
@@ -42,7 +43,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:text="concat"
+                android:text="@string/concat"
                 />
 
 
@@ -51,7 +52,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:text="concat (eager)"
+                android:text="@string/concat_eager"
                 />
 
 
@@ -60,7 +61,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:text="merge"
+                android:text="@string/merge"
                 />
 
 
@@ -69,7 +70,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:text="merge\n(slower disk)"
+                android:text="@string/merge_n_slower_disk"
                 />
 
             <Button
@@ -77,7 +78,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:text="merge\n(optimized)"
+                android:text="@string/merge_n_optimized"
                 />
 
             <Button
@@ -85,7 +86,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:text="merge\n(optimized) slow disk"
+                android:text="@string/merge_n_optimized_slow_disk"
                 />
 
         </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_pseudo_cache_concat.xml b/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
index 2022f357..e5f39896 100644
--- a/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
+++ b/app/src/main/res/layout/fragment_pseudo_cache_concat.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
 <LinearLayout
     android:baselineAligned="false"
     android:orientation="vertical"
@@ -11,7 +12,7 @@
         android:layout_gravity="center"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
-        android:text="Start disk > network call"
+        android:text="@string/start_disk_network_call"
         android:layout_margin="30dp"
         />
 
diff --git a/app/src/main/res/layout/fragment_retrofit.xml b/app/src/main/res/layout/fragment_retrofit.xml
index 285a22a4..557cc6ae 100644
--- a/app/src/main/res/layout/fragment_retrofit.xml
+++ b/app/src/main/res/layout/fragment_retrofit.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -26,7 +25,7 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="14sp"
-            android:text="Log contributors of:"
+            android:text="@string/log_contributors_of"
             />
 
         <EditText
@@ -35,8 +34,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="12sp"
-            android:text="square"
-            android:hint="owner"
+            android:text="@string/square"
+            android:hint="@string/owner"
             />
 
         <EditText
@@ -45,8 +44,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="12sp"
-            android:text="retrofit"
-            android:hint="reponame"
+            android:text="@string/retrofit"
+            android:hint="@string/reponame"
             />
     </LinearLayout>
 
@@ -61,7 +60,7 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="14sp"
-            android:text="Log with full User Info:"
+            android:text="@string/log_with_full_user_info"
             />
 
         <EditText
@@ -70,8 +69,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="12sp"
-            android:text="square"
-            android:hint="owner"
+            android:text="@string/square"
+            android:hint="@string/owner"
             />
 
         <EditText
@@ -80,8 +79,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="12sp"
-            android:text="retrofit"
-            android:hint="reponame"
+            android:text="@string/retrofit"
+            android:hint="@string/reponame"
             />
     </LinearLayout>
 
diff --git a/app/src/main/res/layout/fragment_retrofit_async_task_death.xml b/app/src/main/res/layout/fragment_retrofit_async_task_death.xml
index ad4d565b..8fd1ffe6 100644
--- a/app/src/main/res/layout/fragment_retrofit_async_task_death.xml
+++ b/app/src/main/res/layout/fragment_retrofit_async_task_death.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -26,7 +25,7 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="14sp"
-            android:text="Log User Info:"
+            android:text="@string/log_user_info"
             />
 
         <EditText
@@ -35,8 +34,8 @@
             android:layout_height="wrap_content"
             android:layout_width="0dip"
             android:textSize="12sp"
-            android:text="kaushikgopal"
-            android:hint="owner"
+            android:text="@string/kaushikgopal"
+            android:hint="@string/owner"
             />
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_rotation_persist.xml b/app/src/main/res/layout/fragment_rotation_persist.xml
index ab06e78b..67bc0c67 100644
--- a/app/src/main/res/layout/fragment_rotation_persist.xml
+++ b/app/src/main/res/layout/fragment_rotation_persist.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -19,7 +18,7 @@
         android:id="@+id/btn_rotate_persist"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        android:text="Start operation"
+        android:text="@string/start_operation"
         />
 
     <ListView
diff --git a/app/src/main/res/layout/fragment_rxbus_bottom.xml b/app/src/main/res/layout/fragment_rxbus_bottom.xml
index d309db86..9bdbdea8 100644
--- a/app/src/main/res/layout/fragment_rxbus_bottom.xml
+++ b/app/src/main/res/layout/fragment_rxbus_bottom.xml
@@ -14,7 +14,7 @@
         android:layout_width="wrap_content"
         android:textSize="@dimen/text_xxlarge"
         android:textColor="@android:color/white"
-        android:text="1"
+        android:text="@string/one"
         />
 
     <TextView
@@ -26,6 +26,6 @@
         android:paddingBottom="@dimen/activity_vertical_margin"
         android:textSize="@dimen/text_large"
         android:textColor="@android:color/white"
-        android:text="tap!"
+        android:text="@string/tap"
         />
 </FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_rxbus_demo.xml b/app/src/main/res/layout/fragment_rxbus_demo.xml
index 250c5391..80df9875 100644
--- a/app/src/main/res/layout/fragment_rxbus_demo.xml
+++ b/app/src/main/res/layout/fragment_rxbus_demo.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:id="@+id/demo_rxbus_frag_12"
     android:baselineAligned="false"
diff --git a/app/src/main/res/layout/fragment_subject_timeout.xml b/app/src/main/res/layout/fragment_subject_timeout.xml
index 237e6df2..3d4c6d0b 100644
--- a/app/src/main/res/layout/fragment_subject_timeout.xml
+++ b/app/src/main/res/layout/fragment_subject_timeout.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -25,7 +24,7 @@
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="0dip"
-            android:text="Button 1"
+            android:text="@string/button_1"
             />
 
         <Button
@@ -33,7 +32,7 @@
             android:layout_weight="1"
             android:layout_height="wrap_content"
             android:layout_width="0dip"
-            android:text="Button 2"
+            android:text="@string/button_2"
             />
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/fragment_timer_demo.xml b/app/src/main/res/layout/fragment_timer_demo.xml
index 31a1d616..feadc0f3 100644
--- a/app/src/main/res/layout/fragment_timer_demo.xml
+++ b/app/src/main/res/layout/fragment_timer_demo.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <FrameLayout
     android:layout_height="match_parent"
     android:layout_width="match_parent"
@@ -10,6 +9,6 @@
         android:id="@+id/btn_start_demo"
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
-        android:text="Start"
+        android:text="@string/start"
         />
 </FrameLayout>
diff --git a/app/src/main/res/layout/fragment_volley.xml b/app/src/main/res/layout/fragment_volley.xml
index 299d973c..fb2aea9e 100644
--- a/app/src/main/res/layout/fragment_volley.xml
+++ b/app/src/main/res/layout/fragment_volley.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <LinearLayout
     android:orientation="vertical"
     android:layout_height="match_parent"
@@ -21,8 +20,8 @@
         android:layout_width="match_parent"
         android:layout_marginLeft="90dp"
         android:layout_marginRight="90dp"
-        android:textSize="16dp"
-        android:text="tap me"
+        android:textSize="16sp"
+        android:text="@string/tap_me"
         />
 
     <ListView
diff --git a/app/src/main/res/layout/item_btn.xml b/app/src/main/res/layout/item_btn.xml
index a922a39f..a7a03b36 100644
--- a/app/src/main/res/layout/item_btn.xml
+++ b/app/src/main/res/layout/item_btn.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <Button
     android:id="@+id/item_btn"
     xmlns:android="http://schemas.android.com/apk/res/android"
@@ -8,5 +7,5 @@
     android:layout_height="wrap_content"
     android:layout_margin="@dimen/activity_horizontal_margin"
 
-    android:text="I AMZ BTN"
+    android:text="@string/i_amz_btn"
     />
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_log.xml b/app/src/main/res/layout/item_log.xml
index 97a3ab6a..d0128694 100644
--- a/app/src/main/res/layout/item_log.xml
+++ b/app/src/main/res/layout/item_log.xml
@@ -1,15 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <TextView
-    android:id="@+id/item_log"
     xmlns:android="http://schemas.android.com/apk/res/android"
-
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/item_log"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:paddingEnd="@dimen/activity_horizontal_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingStart="@dimen/activity_horizontal_margin"
-    android:text="Item Log goes here"
     android:textSize="@dimen/text_medium"
-    />
\ No newline at end of file
+    tools:text="Item Log goes here"/>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_log_white.xml b/app/src/main/res/layout/item_log_white.xml
index f5d4f463..08bebb01 100644
--- a/app/src/main/res/layout/item_log_white.xml
+++ b/app/src/main/res/layout/item_log_white.xml
@@ -1,16 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
-
 <TextView
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/item_log"
-
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:paddingEnd="@dimen/activity_horizontal_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingStart="@dimen/activity_horizontal_margin"
-    android:text="Item Log goes here"
     android:textColor="@color/white"
     android:textSize="@dimen/text_medium"
+    tools:text="Item Log goes here"
     />
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f3ee7640..a3831a0c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -47,5 +47,49 @@
     <string name="msg_pseudoCache_demoInfo_mergeSlowDisk">Here\'s a fake example where the disk is made slower than the network call. You can see the results are whack.</string>
     <string name="msg_pseudoCache_demoInfo_mergeOptimized">This is an optimized merge and probably want to use. Notice subscriptions happen immediately and network results are respected regardless of when they come in. So if the disk is slower, it is discarded.</string>
     <string name="msg_pseudoCache_demoInfo_mergeOptimizedSlowDisk">Similar to optimized merge (same code). Notice though that if the disk is slower it\'s discarded in favor of the "fresh" network data which in this case happens to be faster.</string>
+    <string name="tap_me">tap me</string>
+    <string name="start_long_operation">Start long operation</string>
+    <string name="enter_some_search_text">Enter some search text</string>
+    <string name="btn_1">BTN 1</string>
+    <string name="btn_2">BTN 2</string>
+    <string name="btn_3">BTN 3</string>
+    <string name="btn_4">BTN 4</string>
+    <string name="btn_5">BTN 5</string>
+    <string name="clear_log">CLEAR LOG</string>
+    <string name="one_hundred">100</string>
+    <string name="plus">+</string>
+    <string name="eight">8</string>
+    <string name="zero">0</string>
+    <string name="retry">Retry</string>
+    <string name="delay">Delay</string>
+    <string name="enter_a_valid_email_below">Enter a valid email below:</string>
+    <string name="password_than_8_chrs"><![CDATA[password (> than 8 chrs):]]></string>
+    <string name="number_between_1_amp_100"><![CDATA[number (between 1 & 100):]]></string>
+    <string name="submit">Submit</string>
+    <string name="start_simple_polling">Start simple polling</string>
+    <string name="start_increasingly_delayed_polling">Start increasingly delayed polling</string>
+    <string name="info_about_the_demo_will_show_up_here">Info about the demo will show up here</string>
+    <string name="concat">concat</string>
+    <string name="concat_eager">concat (eager)</string>
+    <string name="merge">merge</string>
+    <string name="merge_n_slower_disk">merge (slower disk)</string>
+    <string name="merge_n_optimized">merge (optimized)</string>
+    <string name="merge_n_optimized_slow_disk">merge (optimized) slow disk</string>
+    <string name="start_disk_network_call"><![CDATA[Start disk > network call]]></string>
+    <string name="log_contributors_of">Log contributors of:</string>
+    <string name="square">square</string>
+    <string name="owner">owner</string>
+    <string name="retrofit">retrofit</string>
+    <string name="reponame">reponame</string>
+    <string name="log_with_full_user_info">Log with full User Info:</string>
+    <string name="log_user_info">Log User Info:</string>
+    <string name="kaushikgopal">kaushikgopal</string>
+    <string name="start_operation">Start operation</string>
+    <string name="one">1</string>
+    <string name="tap">tap!</string>
+    <string name="button_1">Button 1</string>
+    <string name="button_2">Button 2</string>
+    <string name="start">Start</string>
+    <string name="i_amz_btn">I AMZ BTN</string>
 
 </resources>

From 1014e5e50fe588d9511db6f659adce088d698aea Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 15 Mar 2017 10:45:06 -0700
Subject: [PATCH 246/260] chore: reformat to google-java-fmt

---
 .../FormValidationCombineLatestFragment.java  | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 48ac13f3..9bac505f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -1,5 +1,8 @@
 package com.morihacky.android.rxjava.fragments;
 
+import static android.text.TextUtils.isEmpty;
+import static android.util.Patterns.EMAIL_ADDRESS;
+
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
@@ -9,19 +12,14 @@
 import android.widget.TextView;
 import butterknife.BindView;
 import butterknife.ButterKnife;
-
+import butterknife.Unbinder;
 import com.jakewharton.rxbinding2.widget.RxTextView;
 import com.morihacky.android.rxjava.R;
-
-import butterknife.Unbinder;
 import io.reactivex.BackpressureStrategy;
 import io.reactivex.Flowable;
 import io.reactivex.subscribers.DisposableSubscriber;
 import timber.log.Timber;
 
-import static android.text.TextUtils.isEmpty;
-import static android.util.Patterns.EMAIL_ADDRESS;
-
 public class FormValidationCombineLatestFragment extends BaseFragment {
 
   @BindView(R.id.btn_demo_form_valid)
@@ -48,9 +46,12 @@ public View onCreateView(
     View layout = inflater.inflate(R.layout.fragment_form_validation_comb_latest, container, false);
     unbinder = ButterKnife.bind(this, layout);
 
-    _emailChangeObservable = RxTextView.textChanges(_email).skip(1).toFlowable(BackpressureStrategy.LATEST);
-    _passwordChangeObservable = RxTextView.textChanges(_password).skip(1).toFlowable(BackpressureStrategy.LATEST);
-    _numberChangeObservable = RxTextView.textChanges(_number).skip(1).toFlowable(BackpressureStrategy.LATEST);
+    _emailChangeObservable =
+        RxTextView.textChanges(_email).skip(1).toFlowable(BackpressureStrategy.LATEST);
+    _passwordChangeObservable =
+        RxTextView.textChanges(_password).skip(1).toFlowable(BackpressureStrategy.LATEST);
+    _numberChangeObservable =
+        RxTextView.textChanges(_number).skip(1).toFlowable(BackpressureStrategy.LATEST);
 
     _combineLatestEvents();
 

From 04577e4d0cd52d0600775cb7a80d2e3c395e9775 Mon Sep 17 00:00:00 2001
From: Leandro Favarin <lfavarin@gmail.com>
Date: Sun, 19 Mar 2017 19:21:51 +0100
Subject: [PATCH 247/260] Add link for Exp. Backoff with Jitter (#1) (#101)

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index d616cbc4..350170fa 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,7 @@ We simulate this behaviour using RxJava with the [`retryWhen` operator](http://r
 
 * http://stackoverflow.com/a/25292833/159825
 * Another excellent implementation via @[sddamico](https://github.com/sddamico) : https://gist.github.com/sddamico/c45d7cdabc41e663bea1
+* This one includes support for jittering, by @[leandrofavarin](https://github.com/leandrofavarin) : http://leandrofavarin.com/exponential-backoff-rxjava-operator-with-jitter
 
 Also look at the [Polling example](https://github.com/kaushikgopal/RxJava-Android-Samples#polling-with-schedulers) where we use a very similar Exponential backoff mechanism.
 

From 859218ad659d68eb8fafa13dea193f590813ae0e Mon Sep 17 00:00:00 2001
From: Theo <ramones.teo@gmail.com>
Date: Thu, 20 Apr 2017 08:36:21 +0300
Subject: [PATCH 248/260] Add missing link to README for timeout example (#102)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 350170fa..0b85e1ee 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ I've also been giving talks about Learning Rx using many of the examples listed
 13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
 14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
 15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
-16. [Simple Timeout example (using timeout)]()
+16. [Simple Timeout example (using timeout)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#16-simple-timeout-example-using-timeout)
 
 ## Description
 

From 371524294b156b7f2a22c968bbcf998916946248 Mon Sep 17 00:00:00 2001
From: Quang Nguyen <quang.bme.hust.55@gmail.com>
Date: Tue, 16 May 2017 00:43:59 +0900
Subject: [PATCH 249/260] Use relative links for inner headers. (#103)

---
 README.md | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/README.md b/README.md
index 0b85e1ee..fa0e39b0 100644
--- a/README.md
+++ b/README.md
@@ -10,22 +10,22 @@ I've also been giving talks about Learning Rx using many of the examples listed
 
 ## Examples:
 
-1. [Background work & concurrency (using Schedulers)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#1-background-work--concurrency-using-schedulers)
-2. [Accumulate calls (using buffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#2-accumulate-calls-using-buffer)
-3. [Instant/Auto searching text listeners (using Subjects & debounce)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#3-instantauto-searching-text-listeners-using-subjects--debounce)
-4. [Networking with Retrofit & RxJava (using zip, flatmap)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#4-networking-with-retrofit--rxjava-using-zip-flatmap)
-5. [Two-way data binding for TextViews (using PublishSubject)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#5-two-way-data-binding-for-textviews-using-publishsubject)
-6. [Simple and Advanced polling (using interval and repeatWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#6-simple-and-advanced-polling-using-interval-and-repeatwhen)
-7. [Simple and Advanced exponential backoff (using delay and retryWhen)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#7-simple-and-advanced-exponential-backoff-using-delay-and-retrywhen)
-8. [Form validation (using combineLatest)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#8-form-validation-using-combinelatest)
-9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#9-pseudo-caching--retrieve-data-first-from-a-cache-then-a-network-call-using-concat-concateager-merge-or-publish)
-10. [Simple timing demos (using timer, interval or delay)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#10-simple-timing-demos-using-timer-interval-and-delay)
-11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#11-rxbus--event-bus-using-rxjava-using-rxrelay-never-terminating-subjects-and-debouncedbuffer)
-12. [Persist data on Activity rotations (using Subjects and retained Fragments)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
-13. [Networking with Volley](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#13-networking-with-volley)
-14. [Pagination with Rx (using Subjects)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#14-pagination-with-rx-using-subjects)
-15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
-16. [Simple Timeout example (using timeout)](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/README.md#16-simple-timeout-example-using-timeout)
+1. [Background work & concurrency (using Schedulers)](#1-background-work--concurrency-using-schedulers)
+2. [Accumulate calls (using buffer)](#2-accumulate-calls-using-buffer)
+3. [Instant/Auto searching text listeners (using Subjects & debounce)](#3-instantauto-searching-text-listeners-using-subjects--debounce)
+4. [Networking with Retrofit & RxJava (using zip, flatmap)](#4-networking-with-retrofit--rxjava-using-zip-flatmap)
+5. [Two-way data binding for TextViews (using PublishSubject)](#5-two-way-data-binding-for-textviews-using-publishsubject)
+6. [Simple and Advanced polling (using interval and repeatWhen)](#6-simple-and-advanced-polling-using-interval-and-repeatwhen)
+7. [Simple and Advanced exponential backoff (using delay and retryWhen)](#7-simple-and-advanced-exponential-backoff-using-delay-and-retrywhen)
+8. [Form validation (using combineLatest)](#8-form-validation-using-combinelatest)
+9. [Pseudo caching : retrieve data first from a cache, then a network call (using concat, concatEager, merge or publish)](#9-pseudo-caching--retrieve-data-first-from-a-cache-then-a-network-call-using-concat-concateager-merge-or-publish)
+10. [Simple timing demos (using timer, interval or delay)](#10-simple-timing-demos-using-timer-interval-and-delay)
+11. [RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)](#11-rxbus--event-bus-using-rxjava-using-rxrelay-never-terminating-subjects-and-debouncedbuffer)
+12. [Persist data on Activity rotations (using Subjects and retained Fragments)](#12-persist-data-on-activity-rotations-using-subjects-and-retained-fragments)
+13. [Networking with Volley](#13-networking-with-volley)
+14. [Pagination with Rx (using Subjects)](#14-pagination-with-rx-using-subjects)
+15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
+16. [Simple Timeout example (using timeout)](#16-simple-timeout-example-using-timeout)
 
 ## Description
 

From bab7abd5b446c959d303ae5e2e93a1771ca252b3 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 May 2017 09:30:30 -0700
Subject: [PATCH 250/260] chore: update dependencies

---
 app/build.gradle                         | 2 +-
 build.gradle                             | 2 +-
 gradle/wrapper/gradle-wrapper.properties | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 99e29a4a..63cddc68 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -63,7 +63,7 @@ dependencies {
 
 android {
     compileSdkVersion sdkVersion
-    buildToolsVersion '23.0.3'
+    buildToolsVersion '25.0.0'
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
diff --git a/build.gradle b/build.gradle
index 85ab3d95..fc2e126d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.2'
+        classpath 'com.android.tools.build:gradle:2.3.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a0a2dce4..21b8e308 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat Oct 01 19:11:24 PDT 2016
+#Wed May 24 09:29:38 PDT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip

From 743f24cd0a7ddb37a5806707f9abc8514c3293df Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 May 2017 09:44:19 -0700
Subject: [PATCH 251/260] chore: add kotlin dependencies

---
 app/build.gradle | 20 ++++++++++++--------
 build.gradle     | 10 ++++++++++
 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 63cddc68..4ba57064 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,6 +8,7 @@ buildscript {
         // can be removed with android-gradle plugin is upgraded to 2.2
         // https://twitter.com/JakeWharton/status/760836175586267136
         classpath 'me.tatarka.retrolambda.projectlombok:lombok.ast:0.2.3.a2'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}"
     }
 
     // Exclude the lombok version that the android plugin depends on.
@@ -16,13 +17,7 @@ buildscript {
 
 apply plugin: 'com.android.application'
 apply plugin: 'me.tatarka.retrolambda'
-
-ext {
-    okhttpVersion = "3.0.1"
-    retrofitVersion = "2.0.0"
-    sdkVersion = 24
-    supportLibVersion = "24.2.1"
-}
+apply plugin: 'kotlin-android'
 
 dependencies {
     compile "com.android.support:support-v13:${supportLibVersion}"
@@ -38,6 +33,9 @@ dependencies {
     compile "com.squareup.okhttp3:okhttp-urlconnection:${okhttpVersion}"
     compile 'com.mcxiaoke.volley:library:1.0.19'
 
+    compile "org.jetbrains.kotlin:kotlin-stdlib:${kotlinVersion}"
+    compile "com.nhaarman:mockito-kotlin:${mockitoKotlinVersion}"
+
     // ----------------------------------
     //  Rx dependencies
 
@@ -63,7 +61,7 @@ dependencies {
 
 android {
     compileSdkVersion sdkVersion
-    buildToolsVersion '25.0.0'
+    buildToolsVersion buildToolsVrs
 
     defaultConfig {
         applicationId "com.morihacky.android.rxjava"
@@ -72,12 +70,18 @@ android {
         versionCode 2
         versionName "1.2"
     }
+
     buildTypes {
         release {
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
diff --git a/build.gradle b/build.gradle
index fc2e126d..1fc3bccb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,4 +20,14 @@ allprojects {
             url "https://jitpack.io"
         }
     }
+
+    ext {
+        okhttpVersion = "3.0.1"
+        retrofitVersion = "2.0.0"
+        sdkVersion = 24
+        buildToolsVrs = "25.0.0"
+        supportLibVersion = "25.3.1"
+        kotlinVersion = "1.1.2-4"
+        mockitoKotlinVersion = "1.4.0"
+    }
 }

From 278547d1b061c24cfcb92f81883706dab59329de Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 May 2017 10:30:38 -0700
Subject: [PATCH 252/260] feat: refactor playground fragment to kotlin

---
 .../rxjava/fragments/PlaygroundFragment.java  | 138 ------------------
 .../rxjava/fragments/PlaygroundFragment.kt    |  77 ++++++++++
 2 files changed, 77 insertions(+), 138 deletions(-)
 delete mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
deleted file mode 100644
index 21f61fe5..00000000
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.java
+++ /dev/null
@@ -1,138 +0,0 @@
-package com.morihacky.android.rxjava.fragments;
-
-import android.content.Context;
-import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
-import android.support.annotation.Nullable;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
-import android.widget.ListView;
-import android.widget.ProgressBar;
-import butterknife.Bind;
-import butterknife.ButterKnife;
-import butterknife.OnClick;
-import com.morihacky.android.rxjava.R;
-import io.reactivex.Observable;
-import io.reactivex.android.schedulers.AndroidSchedulers;
-import io.reactivex.schedulers.Schedulers;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-import timber.log.Timber;
-
-public class PlaygroundFragment
-      extends BaseFragment {
-
-    @Bind(R.id.progress_operation_running) ProgressBar _progress;
-    @Bind(R.id.list_threading_log) ListView _logsList;
-
-    private LogAdapter _adapter;
-    private int _attempt = 0;
-    private List<String> _logs;
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        ButterKnife.unbind(this);
-    }
-
-    @Override
-    public View onCreateView(LayoutInflater inflater,
-                             @Nullable ViewGroup container,
-                             @Nullable Bundle savedInstanceState) {
-        View layout = inflater.inflate(R.layout.fragment_concurrency_schedulers, container, false);
-        ButterKnife.bind(this, layout);
-        return layout;
-    }
-
-    @Override
-    public void onActivityCreated(@Nullable Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-        _setupLogger();
-    }
-
-    @OnClick(R.id.btn_start_operation)
-    public void startOperation() {
-
-        _logs.clear();
-        _log("Button Clicked");
-
-        Observable.fromIterable(Arrays.asList("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"))//
-                  .flatMap(s1 -> {
-
-                      _log(s1 + "start");
-
-                      if (s1.equalsIgnoreCase("b") && _attempt < 5) {
-                          _attempt++;
-                          return Observable.error(new Throwable("b can't be processed (" + (_attempt - 1) + ")"));
-                      }
-
-                      if (s1.equalsIgnoreCase("c") || s1.equalsIgnoreCase("f")) {
-                          return Observable.just(s1);
-                      }
-                      else {
-                          return Observable
-                                .timer(2, TimeUnit.SECONDS)
-                                .map(l -> s1);
-                      }
-                  })
-                  .retryWhen(source -> source.delay(8, TimeUnit.SECONDS))
-                  .doOnNext(s -> _log(s + "stop"))
-                  .subscribeOn(Schedulers.io())
-                  .observeOn(AndroidSchedulers.mainThread())
-                  .subscribe();
-    }
-
-    // -----------------------------------------------------------------------------------
-    // Method that help wiring up the example (irrelevant to RxJava)
-
-    private void _doSomeLongOperation_thatBlocksCurrentThread() {
-        _log("performing long operation");
-
-        try {
-            Thread.sleep(3000);
-        } catch (InterruptedException e) {
-            Timber.d("Operation was interrupted");
-        }
-    }
-
-    private void _log(String logMsg) {
-
-        if (_isCurrentlyOnMainThread()) {
-            _logs.add(0, logMsg + " (main thread) ");
-            _adapter.clear();
-            _adapter.addAll(_logs);
-        }
-        else {
-            _logs.add(0, logMsg + " (NOT main thread) ");
-
-            // You can only do below stuff on main thread.
-            new Handler(Looper.getMainLooper()).post(() -> {
-                _adapter.clear();
-                _adapter.addAll(_logs);
-            });
-        }
-    }
-
-    private void _setupLogger() {
-        _logs = new ArrayList<>();
-        _adapter = new LogAdapter(getActivity(), new ArrayList<>());
-        _logsList.setAdapter(_adapter);
-    }
-
-    private boolean _isCurrentlyOnMainThread() {
-        return Looper.myLooper() == Looper.getMainLooper();
-    }
-
-    private class LogAdapter
-          extends ArrayAdapter<String> {
-
-        public LogAdapter(Context context, List<String> logs) {
-            super(context, R.layout.item_log, R.id.item_log, logs);
-        }
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
new file mode 100644
index 00000000..d61ba9c7
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
@@ -0,0 +1,77 @@
+package com.morihacky.android.rxjava.fragments
+
+import android.content.Context
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ArrayAdapter
+import android.widget.ListView
+import butterknife.ButterKnife
+import com.morihacky.android.rxjava.R
+
+class PlaygroundFragment : BaseFragment() {
+
+    private var _logsList: ListView? = null
+    private var _adapter: LogAdapter? = null
+
+    private var _attempt = 0
+    private var _logs: MutableList<String> = ArrayList()
+
+    override fun onDestroy() {
+        super.onDestroy()
+        ButterKnife.unbind(this)
+    }
+
+    override fun onCreateView(inflater: LayoutInflater?,
+                              container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+        return inflater!!.inflate(R.layout.fragment_concurrency_schedulers, container, false)
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+
+        _logsList = activity.findViewById(R.id.list_threading_log) as ListView
+
+        activity.findViewById(R.id.btn_start_operation).setOnClickListener { _ ->
+            _log("Button clicked")
+        }
+
+        _setupLogger()
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private fun _log(logMsg: String) {
+
+        if (_isCurrentlyOnMainThread()) {
+            _logs.add(0, logMsg + " (main thread) ")
+            _adapter!!.clear()
+            _adapter!!.addAll(_logs)
+        } else {
+            _logs.add(0, logMsg + " (NOT main thread) ")
+
+            // You can only do below stuff on main thread.
+            Handler(Looper.getMainLooper()).post {
+                _adapter!!.clear()
+                _adapter!!.addAll(_logs)
+            }
+        }
+    }
+
+    private fun _setupLogger() {
+        _logs = ArrayList<String>()
+        _adapter = LogAdapter(activity, ArrayList<String>())
+        _logsList!!.adapter = _adapter
+    }
+
+    private fun _isCurrentlyOnMainThread(): Boolean {
+        return Looper.myLooper() == Looper.getMainLooper()
+    }
+
+    private inner class LogAdapter(context: Context, logs: List<String>) : ArrayAdapter<String>(context, R.layout.item_log, R.id.item_log, logs)
+}
\ No newline at end of file

From 29b081f903858bca6877900df6ae5b446aaa7ca7 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 May 2017 10:41:09 -0700
Subject: [PATCH 253/260] fix: remove BK unbind from Kotlin example

---
 .../android/rxjava/fragments/PlaygroundFragment.kt          | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
index d61ba9c7..37f76532 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
@@ -9,7 +9,6 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.ArrayAdapter
 import android.widget.ListView
-import butterknife.ButterKnife
 import com.morihacky.android.rxjava.R
 
 class PlaygroundFragment : BaseFragment() {
@@ -20,11 +19,6 @@ class PlaygroundFragment : BaseFragment() {
     private var _attempt = 0
     private var _logs: MutableList<String> = ArrayList()
 
-    override fun onDestroy() {
-        super.onDestroy()
-        ButterKnife.unbind(this)
-    }
-
     override fun onCreateView(inflater: LayoutInflater?,
                               container: ViewGroup?,
                               savedInstanceState: Bundle?): View? {

From 1e88b58d5b7b04d6f1acd0a2216c8a605925b325 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Wed, 24 May 2017 10:44:43 -0700
Subject: [PATCH 254/260] fix: update LeakCanary + use ContextCompat color

---
 app/build.gradle                                           | 4 ++--
 .../fragments/FormValidationCombineLatestFragment.java     | 7 +++++--
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index b81a6017..74a7d975 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -51,8 +51,8 @@ dependencies {
 
     // ----------------------------------
 
-    debugCompile 'com.squareup.leakcanary:leakcanary-android:1.3'
-    releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.3'
+    debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5.1'
+    releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.1'
 }
 
 android {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
index 9bac505f..efc4c2f8 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/FormValidationCombineLatestFragment.java
@@ -5,6 +5,7 @@
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.v4.content.ContextCompat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -72,9 +73,11 @@ private void _combineLatestEvents() {
           @Override
           public void onNext(Boolean formValid) {
             if (formValid) {
-              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.blue));
+              _btnValidIndicator.setBackgroundColor(
+                  ContextCompat.getColor(getContext(), R.color.blue));
             } else {
-              _btnValidIndicator.setBackgroundColor(getResources().getColor(R.color.gray));
+              _btnValidIndicator.setBackgroundColor(
+                  ContextCompat.getColor(getContext(), R.color.gray));
             }
           }
 

From c8f7d796d7957c2fca391aa6ed7f1f77e95d1ddc Mon Sep 17 00:00:00 2001
From: Kishore Babu <kishore.babu@gmx.com>
Date: Tue, 4 Jul 2017 21:23:05 +0530
Subject: [PATCH 255/260] feat: enable multi-dexing (#109)

---
 app/build.gradle                                          | 3 +++
 app/src/main/java/com/morihacky/android/rxjava/MyApp.java | 5 +++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/app/build.gradle b/app/build.gradle
index 74a7d975..ac1f4021 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -18,6 +18,7 @@ apply plugin: 'com.f2prateek.javafmt'
 apply plugin: 'kotlin-android'
 
 dependencies {
+    compile 'com.android.support:multidex:1.0.1'
     compile "com.android.support:support-v13:${supportLibVersion}"
     compile "com.android.support:appcompat-v7:${supportLibVersion}"
     compile "com.android.support:recyclerview-v7:${supportLibVersion}"
@@ -65,6 +66,8 @@ android {
         targetSdkVersion sdkVersion
         versionCode 2
         versionName "1.2"
+
+        multiDexEnabled true
     }
     buildTypes {
         release {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index a3b025ac..0b9f1c9e 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -1,12 +1,13 @@
 package com.morihacky.android.rxjava;
 
-import android.app.Application;
+import android.support.multidex.MultiDexApplication;
+
 import com.morihacky.android.rxjava.volley.MyVolley;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
 import timber.log.Timber;
 
-public class MyApp extends Application {
+public class MyApp extends MultiDexApplication {
 
   private static MyApp _instance;
   private RefWatcher _refWatcher;

From dfb7b0a0374612c93f830dc783e9a8cba227c248 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 17 Jul 2017 10:18:12 -0700
Subject: [PATCH 256/260] fix: merge conflict

---
 README.md                                     |  18 +-
 app/build.gradle                              |   4 +-
 .../com/morihacky/android/rxjava/MyApp.java   |   1 -
 .../rxjava/fragments/MainFragment.java        |  10 ++
 .../com/morihacky/android/rxjava/ext/RxExt.kt |  11 ++
 .../fragments/MulticastPlaygroundFragment.kt  | 166 ++++++++++++++++++
 .../rxjava/fragments/PlaygroundFragment.kt    |  24 ++-
 .../android/rxjava/fragments/UsingFragment.kt |  94 ++++++++++
 app/src/main/res/layout/fragment_buffer.xml   |   3 +-
 app/src/main/res/layout/fragment_main.xml     |  14 ++
 .../layout/fragment_multicast_playground.xml  |  72 ++++++++
 app/src/main/res/values/strings.xml           |   8 +
 build.gradle                                  |   4 +-
 gradle/wrapper/gradle-wrapper.properties      |   2 +-
 14 files changed, 409 insertions(+), 22 deletions(-)
 create mode 100644 app/src/main/kotlin/com/morihacky/android/rxjava/ext/RxExt.kt
 create mode 100644 app/src/main/kotlin/com/morihacky/android/rxjava/fragments/MulticastPlaygroundFragment.kt
 rename app/src/main/{java => kotlin}/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt (74%)
 create mode 100644 app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt
 create mode 100644 app/src/main/res/layout/fragment_multicast_playground.xml

diff --git a/README.md b/README.md
index fa0e39b0..36c7903d 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,8 @@ I've also been giving talks about Learning Rx using many of the examples listed
 14. [Pagination with Rx (using Subjects)](#14-pagination-with-rx-using-subjects)
 15. [Orchestrating Observable: make parallel network calls, then combine the result into a single data point (using flatmap & zip)](#15-orchestrating-observable-make-parallel-network-calls-then-combine-the-result-into-a-single-data-point-using-flatmap--zip)
 16. [Simple Timeout example (using timeout)](#16-simple-timeout-example-using-timeout)
+17. [Setup and teardown resources (using `using`)](#17-setup-and-teardown-resources-using-using)
+18. [Multicast playground](#18-multicast-playground)
 
 ## Description
 
@@ -161,7 +163,7 @@ Cases demonstrated here:
 4. run a task constantly every 3s, but after running it 5 times, terminate automatically
 5. run a task A, pause for sometime, then execute Task B, then terminate
 
-### 11. RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)  
+### 11. RxBus : event bus using RxJava (using RxRelay (never terminating Subjects) and debouncedBuffer)
 
 There are accompanying blog posts that do a much better job of explaining the details on this demo:
 
@@ -222,6 +224,20 @@ This is a simple example demonstrating the use of the `.timeout` operator. Butto
 
 Notice how we can provide a custom Observable that indicates how to react under a timeout Exception.
 
+### 17. Setup and teardown resources (using `using`)
+
+The [operator `using`](http://reactivex.io/documentation/operators/using.html) is relatively less known and notoriously hard to Google. It's a beautiful API that helps to setup a (costly) resource, use it and then dispose off in a clean way.
+
+The nice thing about this operator is that it provides a mechansim to use potentially costly resources in a tightly scoped manner. using -> setup, use and dispose. Think DB connections (like Realm instances), socket connections, thread locks etc.
+
+### 18. Multicast Playground
+
+Multicasting in Rx is like a dark art. Not too many folks know how to pull it off without concern. This example condiers two subscribers (in the forms of buttons) and allows you to add/remove subscribers at different points of time and see how the different operators behave under those circumstances.
+
+The source observale is a timer (`interval`) observable and the reason this was chosen was to intentionally pick a non-terminating observable, so you can test/confirm if your multicast experiment will leak.
+
+_I also gave a talk about [Multicasting in detail at 360|Andev](https://speakerdeck.com/kaushikgopal/rx-by-example-volume-3-the-multicast-edition). If you have the inclination and time, I highly suggest watching that talk first (specifically the Multicast operator permutation segment) and then messing around with the example here._
+
 ## Rx 2.x
 
 All the examples here have been migrated to use RxJava 2.X.
diff --git a/app/build.gradle b/app/build.gradle
index ac1f4021..c4e0b461 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -25,7 +25,7 @@ dependencies {
 
     compile 'com.github.kaushikgopal:CoreTextUtils:c703fa12b6'
     compile "com.jakewharton:butterknife:${butterKnifeVersion}"
-    annotationProcessor "com.jakewharton:butterknife-compiler:${butterKnifeVersion}"
+    kapt "com.jakewharton:butterknife-compiler:${butterKnifeVersion}"
     compile 'com.jakewharton.timber:timber:4.5.1'
     compile "com.squareup.retrofit2:retrofit:${retrofitVersion}"
     compile "com.squareup.retrofit2:converter-gson:${retrofitVersion}"
@@ -45,6 +45,7 @@ dependencies {
     // explicitly depend on RxJava's latest version for bug fixes and new features.
     compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
+    compile 'com.jakewharton.rx:replaying-share-kotlin:2.0.0'
     compile "com.github.akarnokd:rxjava2-extensions:0.16.0"
     compile 'com.jakewharton.rxrelay2:rxrelay:2.0.0'
     compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
@@ -66,7 +67,6 @@ android {
         targetSdkVersion sdkVersion
         versionCode 2
         versionName "1.2"
-
         multiDexEnabled true
     }
     buildTypes {
diff --git a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
index 0b9f1c9e..23a90b23 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/MyApp.java
@@ -1,7 +1,6 @@
 package com.morihacky.android.rxjava;
 
 import android.support.multidex.MultiDexApplication;
-
 import com.morihacky.android.rxjava.volley.MyVolley;
 import com.squareup.leakcanary.LeakCanary;
 import com.squareup.leakcanary.RefWatcher;
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index c09925be..dd5709e1 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -116,6 +116,16 @@ void demoNetworkDetector() {
     clickedOn(new NetworkDetectorFragment());
   }
 
+  @OnClick(R.id.btn_demo_using)
+  void demoUsing() {
+    clickedOn(new UsingFragment());
+  }
+
+  @OnClick(R.id.btn_demo_multicastPlayground)
+  void demoMulticastPlayground() {
+    clickedOn(new MulticastPlaygroundFragment());
+  }
+
   private void clickedOn(@NonNull Fragment fragment) {
     final String tag = fragment.getClass().toString();
     getActivity()
diff --git a/app/src/main/kotlin/com/morihacky/android/rxjava/ext/RxExt.kt b/app/src/main/kotlin/com/morihacky/android/rxjava/ext/RxExt.kt
new file mode 100644
index 00000000..9c99ed69
--- /dev/null
+++ b/app/src/main/kotlin/com/morihacky/android/rxjava/ext/RxExt.kt
@@ -0,0 +1,11 @@
+package com.morihacky.android.rxjava.ext
+
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
+
+operator fun CompositeDisposable.plus(disposable: Disposable): CompositeDisposable {
+    add(disposable)
+    return this
+}
+
+
diff --git a/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/MulticastPlaygroundFragment.kt b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/MulticastPlaygroundFragment.kt
new file mode 100644
index 00000000..5ece0e32
--- /dev/null
+++ b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/MulticastPlaygroundFragment.kt
@@ -0,0 +1,166 @@
+package com.morihacky.android.rxjava.fragments
+
+import android.content.Context
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.*
+import butterknife.BindView
+import butterknife.ButterKnife
+import butterknife.OnClick
+import com.jakewharton.rx.replayingShare
+import com.morihacky.android.rxjava.R
+import io.reactivex.Observable
+import io.reactivex.disposables.Disposable
+import java.util.concurrent.TimeUnit
+
+class MulticastPlaygroundFragment : BaseFragment() {
+
+    @BindView(R.id.list_threading_log) lateinit var logList: ListView
+    @BindView(R.id.dropdown) lateinit var pickOperatorDD: Spinner
+    @BindView(R.id.msg_text) lateinit var messageText: TextView
+
+    private lateinit var sharedObservable: Observable<Long>
+    private lateinit var adapter: LogAdapter
+
+    private var logs: MutableList<String> = ArrayList()
+    private var disposable1: Disposable? = null
+    private var disposable2: Disposable? = null
+
+    override fun onCreateView(inflater: LayoutInflater?,
+                              container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+        val layout = inflater!!.inflate(R.layout.fragment_multicast_playground, container, false)
+        ButterKnife.bind(this, layout)
+
+        _setupLogger()
+        _setupDropdown()
+
+        return layout
+    }
+
+    @OnClick(R.id.btn_1)
+    fun onBtn1Click() {
+
+        disposable1?.let {
+            it.dispose()
+            _log("subscriber 1 disposed")
+            disposable1 = null
+            return
+        }
+
+        disposable1 =
+                sharedObservable
+                        .doOnSubscribe { _log("subscriber 1 (subscribed)") }
+                        .subscribe({ long -> _log("subscriber 1: onNext $long") })
+
+    }
+
+    @OnClick(R.id.btn_2)
+    fun onBtn2Click() {
+        disposable2?.let {
+            it.dispose()
+            _log("subscriber 2 disposed")
+            disposable2 = null
+            return
+        }
+
+        disposable2 =
+                sharedObservable
+                        .doOnSubscribe { _log("subscriber 2 (subscribed)") }
+                        .subscribe({ long -> _log("subscriber 2: onNext $long") })
+    }
+
+    @OnClick(R.id.btn_3)
+    fun onBtn3Click() {
+        logs = ArrayList<String>()
+        adapter.clear()
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private fun _log(logMsg: String) {
+
+        if (_isCurrentlyOnMainThread()) {
+            logs.add(0, logMsg + " (main thread) ")
+            adapter.clear()
+            adapter.addAll(logs)
+        } else {
+            logs.add(0, logMsg + " (NOT main thread) ")
+
+            // You can only do below stuff on main thread.
+            Handler(Looper.getMainLooper()).post {
+                adapter.clear()
+                adapter.addAll(logs)
+            }
+        }
+    }
+
+    private fun _setupLogger() {
+        logs = ArrayList<String>()
+        adapter = LogAdapter(activity, ArrayList<String>())
+        logList.adapter = adapter
+    }
+
+    private fun _setupDropdown() {
+        pickOperatorDD.adapter = ArrayAdapter<String>(context,
+                android.R.layout.simple_spinner_dropdown_item,
+                arrayOf(".publish().refCount()",
+                        ".publish().autoConnect(2)",
+                        ".replay(1).autoConnect(2)",
+                        ".replay(1).refCount()",
+                        ".replayingShare()"))
+
+
+        pickOperatorDD.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+
+            override fun onItemSelected(p0: AdapterView<*>?, p1: View?, index: Int, p3: Long) {
+
+                val sourceObservable = Observable.interval(0L, 3, TimeUnit.SECONDS)
+                        .doOnSubscribe { _log("observer (subscribed)") }
+                        .doOnDispose { _log("observer (disposed)") }
+                        .doOnTerminate { _log("observer (terminated)") }
+
+                sharedObservable =
+                        when (index) {
+                            0 -> {
+                                messageText.setText(R.string.msg_demo_multicast_publishRefCount)
+                                sourceObservable.publish().refCount()
+                            }
+                            1 -> {
+                                messageText.setText(R.string.msg_demo_multicast_publishAutoConnect)
+                                sourceObservable.publish().autoConnect(2)
+                            }
+                            2 -> {
+                                messageText.setText(R.string.msg_demo_multicast_replayAutoConnect)
+                                sourceObservable.replay(1).autoConnect(2)
+                            }
+                            3 -> {
+                                messageText.setText(R.string.msg_demo_multicast_replayRefCount)
+                                sourceObservable.replay(1).refCount()
+                            }
+                            4 -> {
+                                messageText.setText(R.string.msg_demo_multicast_replayingShare)
+                                sourceObservable.replayingShare()
+                            }
+                            else -> throw RuntimeException("got to pick an op yo!")
+                        }
+            }
+
+            override fun onNothingSelected(p0: AdapterView<*>?) {}
+        }
+    }
+
+    private fun _isCurrentlyOnMainThread(): Boolean {
+        return Looper.myLooper() == Looper.getMainLooper()
+    }
+
+    private inner class LogAdapter(context: Context, logs: List<String>) :
+            ArrayAdapter<String>(context, R.layout.item_log, R.id.item_log, logs)
+
+}
+
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
similarity index 74%
rename from app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
rename to app/src/main/kotlin/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
index 37f76532..cf77e04f 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
+++ b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/PlaygroundFragment.kt
@@ -16,25 +16,21 @@ class PlaygroundFragment : BaseFragment() {
     private var _logsList: ListView? = null
     private var _adapter: LogAdapter? = null
 
-    private var _attempt = 0
     private var _logs: MutableList<String> = ArrayList()
 
     override fun onCreateView(inflater: LayoutInflater?,
                               container: ViewGroup?,
                               savedInstanceState: Bundle?): View? {
-        return inflater!!.inflate(R.layout.fragment_concurrency_schedulers, container, false)
-    }
-
-    override fun onActivityCreated(savedInstanceState: Bundle?) {
-        super.onActivityCreated(savedInstanceState)
+        val view = inflater?.inflate(R.layout.fragment_concurrency_schedulers, container, false)
 
-        _logsList = activity.findViewById(R.id.list_threading_log) as ListView
+        _logsList = view?.findViewById(R.id.list_threading_log) as ListView
+        _setupLogger()
 
-        activity.findViewById(R.id.btn_start_operation).setOnClickListener { _ ->
+        view.findViewById(R.id.btn_start_operation).setOnClickListener { _ ->
             _log("Button clicked")
         }
 
-        _setupLogger()
+        return view
     }
 
     // -----------------------------------------------------------------------------------
@@ -44,15 +40,15 @@ class PlaygroundFragment : BaseFragment() {
 
         if (_isCurrentlyOnMainThread()) {
             _logs.add(0, logMsg + " (main thread) ")
-            _adapter!!.clear()
-            _adapter!!.addAll(_logs)
+            _adapter?.clear()
+            _adapter?.addAll(_logs)
         } else {
             _logs.add(0, logMsg + " (NOT main thread) ")
 
             // You can only do below stuff on main thread.
             Handler(Looper.getMainLooper()).post {
-                _adapter!!.clear()
-                _adapter!!.addAll(_logs)
+                _adapter?.clear()
+                _adapter?.addAll(_logs)
             }
         }
     }
@@ -60,7 +56,7 @@ class PlaygroundFragment : BaseFragment() {
     private fun _setupLogger() {
         _logs = ArrayList<String>()
         _adapter = LogAdapter(activity, ArrayList<String>())
-        _logsList!!.adapter = _adapter
+        _logsList?.adapter = _adapter
     }
 
     private fun _isCurrentlyOnMainThread(): Boolean {
diff --git a/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt
new file mode 100644
index 00000000..1b9ee372
--- /dev/null
+++ b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt
@@ -0,0 +1,94 @@
+package com.morihacky.android.rxjava.fragments
+
+import android.content.Context
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ArrayAdapter
+import android.widget.ListView
+import android.widget.TextView
+import com.morihacky.android.rxjava.R
+import io.reactivex.Flowable
+import io.reactivex.functions.Consumer
+import io.reactivex.functions.Function
+import org.reactivestreams.Publisher
+import timber.log.Timber
+import java.util.*
+import java.util.concurrent.Callable
+
+class UsingFragment : BaseFragment() {
+
+    private lateinit var _logs: MutableList<String>
+    private lateinit var _logsList: ListView
+    private lateinit var _adapter: UsingFragment.LogAdapter
+
+    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        val view = inflater?.inflate(R.layout.fragment_buffer, container, false)
+        _logsList = view?.findViewById(R.id.list_threading_log) as ListView
+
+        (view.findViewById(R.id.text_description) as TextView).setText(R.string.msg_demo_using)
+
+        _setupLogger()
+        view.findViewById(R.id.btn_start_operation).setOnClickListener { executeUsingOperation() }
+        return view
+    }
+
+    private fun executeUsingOperation() {
+        val resourceSupplier = Callable<Realm> { Realm() }
+        val sourceSupplier = Function<Realm, Publisher<Int>> { realm ->
+            Flowable.just(true)
+                    .map {
+                        realm.doSomething()
+                        // i would use the copyFromRealm and change it to a POJO
+                        Random().nextInt(50)
+                    }
+        }
+        val disposer = Consumer<Realm> { realm ->
+            realm.clear()
+        }
+
+        Flowable.using(resourceSupplier, sourceSupplier, disposer)
+                .subscribe({ i ->
+                    _log("got a value $i - (look at the logs)")
+                })
+    }
+
+    inner class Realm {
+        init {
+            Timber.d("--- initializing Realm instance")
+        }
+
+        fun doSomething() {
+            Timber.d("--- do something with Realm instance")
+        }
+
+        fun clear() {
+            // notice how this is called even before you manually "dispose"
+            Timber.d("--- cleaning up the resources (happens before a manual 'dispose'")
+        }
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Method that help wiring up the example (irrelevant to RxJava)
+
+    private fun _log(logMsg: String) {
+        _logs.add(0, logMsg)
+
+        // You can only do below stuff on main thread.
+        Handler(Looper.getMainLooper()).post {
+            _adapter.clear()
+            _adapter.addAll(_logs)
+        }
+    }
+
+    private fun _setupLogger() {
+        _logs = ArrayList<String>()
+        _adapter = LogAdapter(activity, ArrayList<String>())
+        _logsList.adapter = _adapter
+    }
+
+    private class LogAdapter(context: Context, logs: List<String>) : ArrayAdapter<String>(context, R.layout.item_log, R.id.item_log, logs)
+}
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_buffer.xml b/app/src/main/res/layout/fragment_buffer.xml
index 86d70150..3464ac5b 100644
--- a/app/src/main/res/layout/fragment_buffer.xml
+++ b/app/src/main/res/layout/fragment_buffer.xml
@@ -7,7 +7,8 @@
     >
 
     <TextView
-        android:layout_height="wrap_content"
+      android:id="@+id/text_description"
+      android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:padding="10dp"
         android:gravity="center"
diff --git a/app/src/main/res/layout/fragment_main.xml b/app/src/main/res/layout/fragment_main.xml
index 51f0a694..6b29ee24 100644
--- a/app/src/main/res/layout/fragment_main.xml
+++ b/app/src/main/res/layout/fragment_main.xml
@@ -127,5 +127,19 @@
             android:layout_width="match_parent"
             android:text="@string/btn_demo_networkDetector"
             />
+
+        <Button
+            android:id="@+id/btn_demo_using"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_using"
+            />
+
+        <Button
+            android:id="@+id/btn_demo_multicastPlayground"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:text="@string/btn_demo_multicastPlayground"
+            />
     </LinearLayout>
 </ScrollView>
diff --git a/app/src/main/res/layout/fragment_multicast_playground.xml b/app/src/main/res/layout/fragment_multicast_playground.xml
new file mode 100644
index 00000000..9e5d025e
--- /dev/null
+++ b/app/src/main/res/layout/fragment_multicast_playground.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+  android:layout_width="match_parent"
+  android:layout_height="match_parent"
+  android:orientation="vertical">
+
+
+  <TableLayout
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <TableRow
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:gravity="center">
+
+      <Spinner
+        android:id="@+id/dropdown"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_span="3"/>
+
+    </TableRow>
+
+    <TableRow
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content">
+
+      <TextView
+        android:id="@+id/msg_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_span="3"
+        android:padding="@dimen/text_micro"
+        android:text="@string/msg_demo_multicast_publishRefCount"/>
+    </TableRow>
+
+    <TableRow
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content">
+
+      <Button
+        android:id="@+id/btn_1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:text="Subscribe 1"/>
+
+      <Button
+        android:id="@+id/btn_2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:text="Subscribe 2"/>
+
+      <Button
+        android:id="@+id/btn_3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:text="Clear log"/>
+    </TableRow>
+
+  </TableLayout>
+
+
+  <ListView
+    android:id="@+id/list_threading_log"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"/>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a3831a0c..8242d0c6 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -23,6 +23,8 @@
     <string name="btn_demo_pagination">Paging example</string>
     <string name="btn_demo_pagination_more">MOAR</string>
     <string name="btn_demo_networkDetector">Network Detector (Subject)</string>
+    <string name="btn_demo_using">Setup &amp; teardown resources (using)</string>
+    <string name="btn_demo_multicastPlayground">MultiConnect operator playground</string>
 
     <string name="msg_demo_pagination">This is a demo of how you can do a list pagination with Rx. We page 10 items at a time and there are 55 items altogether</string>
     <string name="msg_demo_volley">This is a Volley request demo</string>
@@ -40,6 +42,12 @@
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete) \nBTN 5: run task A, pause for sometime, then proceed with Task B</string>
     <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
     <string name="msg_demo_network_detector">This is a demo of how to use Subjects to detect Network connectivity\nToggle your Wifi/Network on or off and notice the logs</string>
+    <string name="msg_demo_using">This is a demo of the somewhat unknown operator "using".\n\nmsg_demo_usingYou typically use it for managing setup/teardown of resources. Classic cases are DB connections (like Realm), sockets, locks etc.\n\nTap the button and look at the logcat. Particularly notice how the Realm instance is self-contained. That is, it is auto-disposed right after use.</string>
+    <string name="msg_demo_multicast_publishRefCount">RefCount starts the upstream right away and gets disposed off, when all subscribers stop. Hit S1, Hit S2, Hit S1, Hit S2. Hit S1/S2 now and notice the stream starts all over.</string>
+    <string name="msg_demo_multicast_publishAutoConnect">AutoConnect(2) waits for a min. subscriber count, before starting the upstream. Hit S1 (notice events don\'t start), Hit S2 (notice events now start), Hit S1 (notice that unsubscribing doesn\'t affect upstream), Hit S2, wait for sometime and hit S1 again (notice source stream doesn\'t restart)</string>
+    <string name="msg_demo_multicast_replayAutoConnect">Replay caches the last item. Hit S1, Hit S2, event starts, Hit S2, wait a bit, Hit S2 again (notice it starts with the last item that S1 saw - courtesy Replay). Hit S2, Hit S1, wait a bit. Hit S1 again (notice event upstream continues and doesn\'t restart)</string>
+    <string name="msg_demo_multicast_replayRefCount">Replay caches the last item. Hit S1, wait a bit, then hit S2 (notice S2 starts immediately with last item that S1 saw), Hit S2, Hit S1. Hit S1/S2 again (notice the stream restarts all over. Interestingly cached last item also removed when both subscribers released)</string>
+    <string name="msg_demo_multicast_replayingShare">Courtesy: new #AndroidDev on the block - JakeWharton. exactly like replay(1).refCount(), but caches the last item even when upstream has been disposed off/released. Hit S1, Hit S2, Hit S1, Hit S2 (notice observable is disposed). Hit S1/S2 again (notice we start with last item emitted)</string>
 
     <string name="msg_pseudoCache_demoInfo_concat">Concat merges the results sequentially. But notice that the latter subscription starts only AFTER the first one completes. Some unnecessary waiting there.</string>
     <string name="msg_pseudoCache_demoInfo_concatEager">Concat eager is cooler. Both subscriptions start at the same time (parallely) but the order of emission is respected.</string>
diff --git a/build.gradle b/build.gradle
index 4ec27655..9a955883 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.2'
+        classpath 'com.android.tools.build:gradle:2.3.3'
         classpath 'com.f2prateek.javafmt:javafmt:0.1.2'
 
         // NOTE: Do not place your application dependencies here; they belong
@@ -26,7 +26,7 @@ allprojects {
         sdkVersion = 24
         buildToolsVrs = "25.0.0"
 
-        kotlinVersion = "1.1.2-4"
+        kotlinVersion = "1.1.3-2"
 
         butterKnifeVersion = '8.5.1'
         mockitoKotlinVersion = "1.4.0"
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 36a044e4..391ac683 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-all.zip

From 86c834015c6e0fac009d132666ede8fbe73b93da Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 17 Jul 2017 10:33:46 -0700
Subject: [PATCH 257/260] fix: using example

---
 .../morihacky/android/rxjava/fragments/UsingFragment.kt    | 7 +++----
 app/src/main/res/values/strings.xml                        | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt
index 1b9ee372..d268609d 100644
--- a/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt
+++ b/app/src/main/kotlin/com/morihacky/android/rxjava/fragments/UsingFragment.kt
@@ -15,7 +15,6 @@ import io.reactivex.Flowable
 import io.reactivex.functions.Consumer
 import io.reactivex.functions.Function
 import org.reactivestreams.Publisher
-import timber.log.Timber
 import java.util.*
 import java.util.concurrent.Callable
 
@@ -58,16 +57,16 @@ class UsingFragment : BaseFragment() {
 
     inner class Realm {
         init {
-            Timber.d("--- initializing Realm instance")
+            _log("initializing Realm instance")
         }
 
         fun doSomething() {
-            Timber.d("--- do something with Realm instance")
+            _log("do something with Realm instance")
         }
 
         fun clear() {
             // notice how this is called even before you manually "dispose"
-            Timber.d("--- cleaning up the resources (happens before a manual 'dispose'")
+            _log("cleaning up the resources (happens before a manual 'dispose'")
         }
     }
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 8242d0c6..955f511f 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -42,7 +42,7 @@
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete) \nBTN 5: run task A, pause for sometime, then proceed with Task B</string>
     <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
     <string name="msg_demo_network_detector">This is a demo of how to use Subjects to detect Network connectivity\nToggle your Wifi/Network on or off and notice the logs</string>
-    <string name="msg_demo_using">This is a demo of the somewhat unknown operator "using".\n\nmsg_demo_usingYou typically use it for managing setup/teardown of resources. Classic cases are DB connections (like Realm), sockets, locks etc.\n\nTap the button and look at the logcat. Particularly notice how the Realm instance is self-contained. That is, it is auto-disposed right after use.</string>
+    <string name="msg_demo_using">This is a demo of the somewhat unknown operator "using".\n\nYou typically use it for managing setup/teardown of resources. Classic cases are DB connections (like Realm), sockets, locks etc.\n\nTap the button and look at the logcat. Particularly notice how the Realm instance is self-contained. That is, it is auto-disposed right after use.</string>
     <string name="msg_demo_multicast_publishRefCount">RefCount starts the upstream right away and gets disposed off, when all subscribers stop. Hit S1, Hit S2, Hit S1, Hit S2. Hit S1/S2 now and notice the stream starts all over.</string>
     <string name="msg_demo_multicast_publishAutoConnect">AutoConnect(2) waits for a min. subscriber count, before starting the upstream. Hit S1 (notice events don\'t start), Hit S2 (notice events now start), Hit S1 (notice that unsubscribing doesn\'t affect upstream), Hit S2, wait for sometime and hit S1 again (notice source stream doesn\'t restart)</string>
     <string name="msg_demo_multicast_replayAutoConnect">Replay caches the last item. Hit S1, Hit S2, event starts, Hit S2, wait a bit, Hit S2 again (notice it starts with the last item that S1 saw - courtesy Replay). Hit S2, Hit S1, wait a bit. Hit S1 again (notice event upstream continues and doesn\'t restart)</string>

From e83b02e1cf3b068f4095c90c5ff978aaa3b7e1a3 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <code@kaush.co>
Date: Mon, 17 Jul 2017 10:40:52 -0700
Subject: [PATCH 258/260] fix: update rotation persist changes

---
 app/build.gradle                              |   5 +
 .../rxjava/fragments/MainFragment.java        |   5 +-
 .../fragments/RotationPersist3Fragment.kt     | 116 ++++++++++++++++++
 app/src/main/res/values/strings.xml           |   2 +-
 build.gradle                                  |   2 +
 5 files changed, 127 insertions(+), 3 deletions(-)
 create mode 100644 app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist3Fragment.kt

diff --git a/app/build.gradle b/app/build.gradle
index c4e0b461..edbcd31c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -36,6 +36,10 @@ dependencies {
     compile "org.jetbrains.kotlin:kotlin-stdlib:${kotlinVersion}"
     compile "com.nhaarman:mockito-kotlin:${mockitoKotlinVersion}"
 
+    compile "android.arch.lifecycle:runtime:${archComponentsVersion}"
+    compile "android.arch.lifecycle:extensions:${archComponentsVersion}"
+    kapt  "android.arch.lifecycle:compiler:${archComponentsVersion}"
+
     // ----------------------------------
     //  Rx dependencies
 
@@ -48,6 +52,7 @@ dependencies {
     compile 'com.jakewharton.rx:replaying-share-kotlin:2.0.0'
     compile "com.github.akarnokd:rxjava2-extensions:0.16.0"
     compile 'com.jakewharton.rxrelay2:rxrelay:2.0.0'
+
     compile 'com.jakewharton.rxbinding2:rxbinding:2.0.0'
     compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
 
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
index dd5709e1..75f68fa2 100644
--- a/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/MainFragment.java
@@ -96,8 +96,9 @@ void demoExponentialBackoff() {
 
   @OnClick(R.id.btn_demo_rotation_persist)
   void demoRotationPersist() {
-    clickedOn(new RotationPersist2Fragment());
-    //clickedOn(new RotationPersist1Fragment());
+    clickedOn(new RotationPersist3Fragment());
+    // clickedOn(new RotationPersist2Fragment());
+    // clickedOn(new RotationPersist1Fragment());
   }
 
   @OnClick(R.id.btn_demo_pagination)
diff --git a/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist3Fragment.kt b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist3Fragment.kt
new file mode 100644
index 00000000..a69e0426
--- /dev/null
+++ b/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist3Fragment.kt
@@ -0,0 +1,116 @@
+package com.morihacky.android.rxjava.fragments
+
+import android.arch.lifecycle.ViewModel
+import android.arch.lifecycle.ViewModelProviders
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper.getMainLooper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ListView
+import butterknife.BindView
+import butterknife.ButterKnife
+import butterknife.OnClick
+import com.morihacky.android.rxjava.MyApp
+import com.morihacky.android.rxjava.R
+import com.morihacky.android.rxjava.ext.plus
+import com.morihacky.android.rxjava.wiring.LogAdapter
+import io.reactivex.Flowable
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
+import timber.log.Timber
+import java.util.concurrent.TimeUnit
+
+class RotationPersist3Fragment : BaseFragment() {
+
+    @BindView(R.id.list_threading_log)
+    lateinit var logList: ListView
+    lateinit var adapter: LogAdapter
+    lateinit var sharedViewModel: SharedViewModel
+
+    private var logs: MutableList<String> = ArrayList()
+    private var disposables = CompositeDisposable()
+
+    // -----------------------------------------------------------------------------------
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        sharedViewModel = ViewModelProviders.of(activity).get(SharedViewModel::class.java)
+    }
+
+    override fun onCreateView(
+            inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        val layout = inflater!!.inflate(R.layout.fragment_rotation_persist, container, false)
+        ButterKnife.bind(this, layout)
+        return layout
+    }
+
+    @OnClick(R.id.btn_rotate_persist)
+    fun startOperationFromWorkerFrag() {
+        logs = ArrayList<String>()
+        adapter.clear()
+
+        disposables +=
+                sharedViewModel
+                        .sourceStream()
+                        .subscribe({ l ->
+                            _log("Received element $l")
+                        })
+    }
+
+    // -----------------------------------------------------------------------------------
+    // Boilerplate
+    // -----------------------------------------------------------------------------------
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        _setupLogger()
+    }
+
+    override fun onPause() {
+        super.onPause()
+        disposables.clear()
+    }
+
+    private fun _setupLogger() {
+        logs = ArrayList<String>()
+        adapter = LogAdapter(activity, ArrayList<String>())
+        logList.adapter = adapter
+    }
+
+    private fun _log(logMsg: String) {
+        logs.add(0, logMsg)
+
+        // You can only do below stuff on main thread.
+        Handler(getMainLooper())
+                .post {
+                    adapter.clear()
+                    adapter.addAll(logs)
+                }
+    }
+}
+
+class SharedViewModel : ViewModel() {
+    var disposable: Disposable? = null
+
+    var sharedObservable: Flowable<Long> =
+            Flowable.interval(1, TimeUnit.SECONDS)
+                    .take(20)
+                    .doOnNext { l -> Timber.tag("KG").d("onNext $l") }
+                    // .replayingShare()
+                    .replay(1)
+                    .autoConnect(1) { t -> disposable = t }
+
+    fun sourceStream(): Flowable<Long> {
+        return sharedObservable
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+        Timber.tag("KG").d("Clearing ViewModel")
+        disposable?.dispose()
+        MyApp.getRefWatcher().watch(this)
+    }
+}
+
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 955f511f..6fabe007 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -40,7 +40,7 @@
     <string name="msg_demo_rxbus_1">Tap on the below button and RxBus will listen to the events</string>
     <string name="msg_demo_form_comb_latest">Monitor the state of multiple observables with the combineLatest operator. Only after all the 3 inputs contain valid entries will the submit button light up</string>
     <string name="msg_demo_timing">BTN 1: run single task once (after 2s complete)\nBTN 2: run task every 1s (start delay of 1s) toggle \nBTN 3: run task every 1s (start immediately) toggle \nBTN 4: run task 5 times every 3s (then complete) \nBTN 5: run task A, pause for sometime, then proceed with Task B</string>
-    <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use a retained fragment in this example</string>
+    <string name="msg_demo_rotation_persist">This is an example of starting an Observable and using the result across rotations. There are many ways to do this, we use ViewModels from architecture components</string>
     <string name="msg_demo_network_detector">This is a demo of how to use Subjects to detect Network connectivity\nToggle your Wifi/Network on or off and notice the logs</string>
     <string name="msg_demo_using">This is a demo of the somewhat unknown operator "using".\n\nYou typically use it for managing setup/teardown of resources. Classic cases are DB connections (like Realm), sockets, locks etc.\n\nTap the button and look at the logcat. Particularly notice how the Realm instance is self-contained. That is, it is auto-disposed right after use.</string>
     <string name="msg_demo_multicast_publishRefCount">RefCount starts the upstream right away and gets disposed off, when all subscribers stop. Hit S1, Hit S2, Hit S1, Hit S2. Hit S1/S2 now and notice the stream starts all over.</string>
diff --git a/build.gradle b/build.gradle
index 9a955883..b8b0e3dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,6 +17,7 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        maven { url 'https://maven.google.com' }
         maven {
             url "https://jitpack.io"
         }
@@ -28,6 +29,7 @@ allprojects {
 
         kotlinVersion = "1.1.3-2"
 
+        archComponentsVersion = "1.0.0-alpha3"
         butterKnifeVersion = '8.5.1'
         mockitoKotlinVersion = "1.4.0"
         okhttpVersion = "3.0.1"

From dee30b187ca6f33c490e4a4124604bb8a56960db Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <1042037+kaushikgopal@users.noreply.github.com>
Date: Sat, 17 Sep 2022 21:34:50 -0700
Subject: [PATCH 259/260] update readme blog links

---
 README.md | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 36c7903d..b5f8f159 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Learning RxJava for Android by example
 ==============
 
-This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](http://blog.kaush.co/2014/09/15/learning-rxjava-with-android-by-example/).
+This is a repository with real-world useful examples of using RxJava with Android. [It usually will be in a constant state of "Work in Progress" (WIP)](https://kau.sh/blog/learning-rxjava-with-android-by-example/).
 
 I've also been giving talks about Learning Rx using many of the examples listed in this repo.
 
@@ -49,7 +49,7 @@ If you hit the button once, you'll get a message saying the button was hit once.
 
 Note:
 
-If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/).
+If you're looking for a more foolproof solution that accumulates "continuous" taps vs just the number of taps within a time span, look at the [EventBus Demo](https://github.com/kaushikgopal/Android-RxJava/blob/master/app/src/main/java/com/morihacky/android/rxjava/rxbus/RxBusDemo_Bottom3Fragment.java) where a combo of the `publish` and `buffer` operators is used. For a more detailed explanation, you can also have a look at this [blog post](https://kau.sh/blog/debouncedbuffer-with-rxjava/).
 
 ### 3. Instant/Auto searching text listeners (using Subjects & debounce)
 
@@ -147,7 +147,7 @@ Sometimes though, you just want to start showing the results immediately. Assumi
 
 Similar to the `concat` operator, if your first Observable is always faster than the second Observable you won't run into any problems. However the problem with `merge` is: if for some strange reason an item is emitted by the cache or slower observable *after* the newer/fresher observable, it will overwrite the newer content. Click the "MERGE (SLOWER DISK)" button in the example to see this problem in action. @JakeWharton and @swankjesse contributions go to 0! In the real world this could be bad, as it would mean the fresh data would get overridden by stale disk data.
 
-To solve this problem you can use merge in combination with the super nifty `publish` operator which takes in a "selector". I wrote about this usage in a [blog post](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/) but I have [Jedi JW](https://twitter.com/JakeWharton/status/786363146990649345) to thank for reminding of this technique. We `publish` the network observable and provide it a selector which starts emitting from the disk cache, up until the point that the network observable starts emitting. Once the network observable starts emitting, it ignores all results from the disk observable. This is perfect and handles any problems we might have.
+To solve this problem you can use merge in combination with the super nifty `publish` operator which takes in a "selector". I wrote about this usage in a [blog post](https://kau.sh/blog/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/) but I have [Jedi JW](https://twitter.com/JakeWharton/status/786363146990649345) to thank for reminding of this technique. We `publish` the network observable and provide it a selector which starts emitting from the disk cache, up until the point that the network observable starts emitting. Once the network observable starts emitting, it ignores all results from the disk observable. This is perfect and handles any problems we might have.
 
 Previously, I was using the `merge` operator but overcoming the problem of results being overwritten by monitoring the "resultAge". See the old `PseudoCacheMergeFragment` example if you're curious to see this old implementation.
 
@@ -167,9 +167,9 @@ Cases demonstrated here:
 
 There are accompanying blog posts that do a much better job of explaining the details on this demo:
 
-1. [Implementing an event bus with RxJava](http://blog.kaush.co/2014/12/24/implementing-an-event-bus-with-rxjava-rxbus/)
-2. [DebouncedBuffer used for the fancier variant of the demo](http://blog.kaush.co/2015/01/05/debouncedbuffer-with-rxjava/)
-3. [share/publish/refcount](http://blog.kaush.co/2015/01/21/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
+1. [Implementing an event bus with RxJava](https://kau.sh/blog/implementing-an-event-bus-with-rxjava-rxbus/)
+2. [DebouncedBuffer used for the fancier variant of the demo](https://kau.sh/blog/debouncedbuffer-with-rxjava/)
+3. [share/publish/refcount](https://kau.sh/blog/rxjava-tip-for-the-day-share-publish-refcount-and-all-that-jazz/)
 
 ### 12. Persist data on Activity rotations (using Subjects and retained Fragments)
 
@@ -179,7 +179,7 @@ This example shows you one strategy viz. using retained Fragments. I started usi
 
 Hit the start button and rotate the screen to your heart's content; you'll see the observable continue from where it left off.
 
-*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](http://blog.kaush.co/2015/07/11/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
+*There are certain quirks about the "hotness" of the source observable used in this example. Check [my blog post](https://kau.sh/blog/a-note-about-the-warmth-share-operator/) out where I explain the specifics.*
 
 I have since rewritten this example using an alternative approach. While the [`ConnectedObservable` approach worked](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist1WorkerFragment.java#L20) it enters the lands of "multicasting" which can be tricky (thread-safety, .refcount etc.). Subjects on the other hand are far more simple.  You can see it rewritten [using a `Subject` here](https://github.com/kaushikgopal/RxJava-Android-Samples/blob/master/app/src/main/java/com/morihacky/android/rxjava/fragments/RotationPersist2WorkerFragment.java#L22).
 

From b84865252c203498c1f0a2fa0f751f3c9127a781 Mon Sep 17 00:00:00 2001
From: Kaushik Gopal <1042037+kaushikgopal@users.noreply.github.com>
Date: Mon, 7 Aug 2023 19:18:56 -0700
Subject: [PATCH 260/260] Update README.md

adding gracious sponsorship from YourKit for use of their tools
---
 README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/README.md b/README.md
index b5f8f159..0f796a1a 100644
--- a/README.md
+++ b/README.md
@@ -253,6 +253,18 @@ I try to ensure the examples are not overly contrived but reflect a real-world u
 
 I'm wrapping my head around RxJava too so if you feel there's a better way of doing one of the examples mentioned above, open up an issue explaining how. Even better, send a pull request.
 
+
+## Sponsorship (Memory Management/Profiling)
+
+Rx threading is messy business. To help, this project uses YourKit tools for analysis.
+
+![Yourkit](https://www.yourkit.com/images/yklogo.png)
+
+
+YourKit supports open source projects with innovative and intelligent tools
+for monitoring and profiling Java applications. YourKit is the creator of <a href="https://www.yourkit.com/java/profiler/">YourKit Java Profiler</a>.
+
+
 ## License
 
 Licensed under the Apache License, Version 2.0 (the "License").