Add PaintWidget demo

Author: bmeike

AndroidUIDemo/AndroidManifest.xml

@@ -1,15 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-      android:versionCode="1"
-      android:versionName="1.0.0" package="com.oreilly.demo.android.pa.uidemo">
-    <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="14" />
-    <application android:icon="@drawable/icon" android:label="@string/app_name">
-        <activity android:name=".TouchMe"
-                  android:label="@string/app_name">
+    package="com.oreilly.demo.android.pa.uidemo"
+    android:versionCode="1"
+    android:versionName="1.0.0" >
+
+    <uses-sdk
+        android:minSdkVersion="8"
+        android:targetSdkVersion="14" />
+
+    <application
+        android:icon="@drawable/icon"
+        android:label="@string/app_name" >
+        <activity
+            android:name=".TouchMe"
+            android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>
-</manifest> 
+
+</manifest>

AndroidViewDemo/AndroidManifest.xml

@@ -1,18 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-      android:versionCode="1"
-      android:versionName="1.0.0" package="com.oreilly.demo.android.pa.viewdemo">
-    <uses-sdk android:targetSdkVersion="14"></uses-sdk>
+    package="com.oreilly.demo.android.pa.viewdemo"
+    android:versionCode="1"
+    android:versionName="1.0.0" >
+
+    <uses-sdk
+        android:minSdkVersion="10"
+        android:targetSdkVersion="14" />
+
     <application
+        android:hardwareAccelerated="false"
         android:icon="@drawable/icon"
-        android:label="@string/app_name"
-        android:hardwareAccelerated="true">
-        <activity android:name=".TransformIt"
-                  android:label="@string/app_name">
+        android:label="@string/app_name" >
+        <activity
+            android:name=".TransformIt"
+            android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>
-</manifest> 
+
+</manifest>

AndroidViewDemo/res/layout/paint.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" >
+
+    <com.oreilly.demo.android.pa.viewdemo.widget.PaintWidget
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+</FrameLayout>

AndroidViewDemo/src/com/oreilly/demo/android/pa/viewdemo/PaintActivity.java

@@ -0,0 +1,13 @@
+package com.oreilly.demo.android.pa.viewdemo;
+
+import android.app.Activity;
+import android.os.Bundle;
+
+public class PaintActivity extends Activity {
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+        setContentView(R.layout.paint);
+	}
+}

AndroidViewDemo/src/com/oreilly/demo/android/pa/viewdemo/widget/PaintWidget.java

@@ -0,0 +1,44 @@
+package com.oreilly.demo.android.pa.viewdemo.widget;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.util.AttributeSet;
+import android.view.View;
+
+public class PaintWidget extends View {
+
+	public PaintWidget(Context context, AttributeSet attrs, int defStyle) {
+		this(context);
+	}
+
+	public PaintWidget(Context context, AttributeSet attrs) {
+		this(context);
+	}
+
+	public PaintWidget(Context context) { super(context); }
+
+	@Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+		setMeasuredDimension(100, 100);
+	}
+
+	@Override protected void onDraw(Canvas canvas) {
+		canvas.drawColor(Color.WHITE);
+
+		Paint paint = new Paint();
+		canvas.drawLine(33, 0, 33, 100, paint);
+
+		paint.setColor(Color.RED);
+		paint.setStrokeWidth(10);
+		canvas.drawLine(56, 0, 56, 100, paint);
+
+		paint.setColor(Color.GREEN);
+		paint.setStrokeWidth(5);
+
+		for (int y = 30, alpha = 255; alpha > 2; alpha >>= 1, y += 10) {
+			paint.setAlpha(alpha);
+			canvas.drawLine(0, y, 100, y, paint);
+		}
+	}
+}