Updated to Swift 4

Author: burczyk

Readme.md

@@ -1,8 +1,8 @@
 # Xcode Swift Code Snippets
 
-I want to present you some convenient code snippets I gathered for [Swift](https://developer.apple.com/swift/).
+I want to present some convenient code snippets I gathered for [Swift](https://developer.apple.com/swift/).
 
-### All snippets are updated to **Swift 3** ❤️
+### All snippets are updated to **Swift 4** ❤️
 
 ## Inspiration
 I was inspired by Matt Thompson's [Xcode-Snippets](https://github.com/mattt/Xcode-Snippets) article and GitHub repo but I haven't found anything similar for Swift.
@@ -16,15 +16,15 @@ You can simply copy all code snippets (`.codesnippet`) into this folder, restart
 Note: Create the folder if it doesn't exist already. It is created by Xcode when user adds his first custom snippet.
 
 ## Usage
-I named all of snippets using scheme `Swift ...` and set all Completion Shortcuts to `swift-...` so each time you type `swift` in code editor you should see all snippets you can use in that place.
+I named all snippets using scheme `Swift ...` and set all Completion Shortcuts to `swift-...` so each time you type `swift` in code editor you should see all snippets you can use in that place.
 
-![Xcode use Swift code snippets](https://raw.githubusercontent.com/burczyk/XcodeSwiftSnippets/master/assets/xcode-use-code-snippet-2.gif)
+![Xcode use Swift code snippets](https://raw.githubusercontent.com/burczyk/XcodeSwiftSnippets/master/assets/use.gif)
 
 ## How to create your own snippets
 To add code snippet to Xcode expand **Utilities** right panel and press `{}` button (*Show the Code Snippet library*) in lower panel.
-Then select a code you would like to treat as a snippet, press and hold a left mouse button for a while and drag whole selection to the right panel (if you drag to early you'll probably only deselect text; you can also try dragging from a whitespace instead of the letter).
+Then select a code you would like to treat as a snippet, press and hold a left mouse button for a while and drag whole selection to the right panel (if you drag too early you'll probably only deselect text; you can also try dragging from a whitespace instead of the letter).
 
-![Xcode create code snippet](https://raw.githubusercontent.com/burczyk/XcodeSwiftSnippets/master/assets/xcode-add-code-snippet-2.gif)
+![Xcode create code snippet](https://raw.githubusercontent.com/burczyk/XcodeSwiftSnippets/master/assets/create.gif)
 
 ### Placeholder tokens
 If you want to add this nice placeholder in rounded blue rect simply put it between `<#` and `#>` and it will be transformed in both editor and final snippet.
@@ -33,30 +33,33 @@ If you want to add this nice placeholder in rounded blue rect simply put it betw
 Currently existing snippets (I hope they will be updated on a regular basis with your help :) ):
 
 ```
-swift-closureoptionaltypealias       Optional closure typealiast with arguments and return value snippet for Swift
-swift-closuretypealias               Closure typealias with arguments and return value snippet for Swift
-swift-prop                           Auto-Create property stub
-swift-didbecomeactive                UIApplicationDidBecomeActiveNotification observer snippet for Swift
+swift-documentdirectory              Document directory path snippet for Swift
 swift-dispatchafter                  GCD dispatch_after snippet for Swift
+
 swift-dispatchasync                  GCD dispatch_async snippet for Swift
+swift-nslocalizedstring              NSLocalizedString function snippet for Swift
 swift-dispatchmain                   GCD dispatch_async on main queue snippet for Swift
-swift-documentdirectory              Document directory path snippet for Swift
+swift-closuretypealias               Closure typealias with arguments and return value snippet for Swift
+swift-weak                           weakify self in closure
+swift-uitableviewdelegate            UITableViewDelegate snippet for Swift
 swift-forin                          for-in loop that casts objects inline
-swift-iba                            Create IBAction method stub
 swift-ibo                            Stub out IBOutlet
-swift-mail                           MFMailComposeViewController snippet for Swift
-swift-mark                           Divider label for separating code into sections
-swift-message                        MFMessageComposeViewController snippet for Swift
-swift-nslocalizedstring              NSLocalizedString function snippet for Swift
-swift-singleton                      Singleton pattern for Swift
 swift-sortarrayofstrings             Swift String Array locale-aware sorting
-swift-uicollectionviewdatasource     UICollectionViewDataSource snippet for Swift
+swift-prop                           Auto-Create property stub
+swift-closureoptionaltypealias       Optional closure typealiast with arguments and return value snippet for Swift
+swift-urlsession-delegate            Swift HTTP Request With Delegate set
+swift-message                        MFMessageComposeViewController snippet for Swift
+swift-uiviewcontrollerlifecycle      UIViewController lifecycle snippet for Swift
 swift-uicollectionviewdelegate       UICollectionViewDelegate snippet for Swift
 swift-uiremotenotification           UIRemoteNotification registration and handling snippet for Swift
+swift-mark                           Divider label for separating code into sections
+swift-didbecomeactive                UIApplicationDidBecomeActiveNotification observer snippet for Swift
+swift-urlsession-datatask            Swift Simple HTTP Request
+swift-mail                           MFMailComposeViewController snippet for Swift
+swift-iba                            Create IBAction method stub
+swift-uicollectionviewdatasource     UICollectionViewDataSource snippet for Swift
+swift-singleton                      Singleton pattern for Swift
 swift-uitableviewdatasource          UITableViewDataSource snippet for Swift
-swift-uitableviewdelegate            UITableViewDelegate snippet for Swift
-swift-uiviewcontrollerlifecycle      UIViewController lifecycle snippet for Swift
-swift-weak                           weakify self in closure
 ```
 
 

assets/.DS_Store

@@ -9,7 +9,7 @@
 		<string>ClassImplementation</string>
 	</array>
 	<key>IDECodeSnippetContents</key>
-	<string>typealias &lt;#ClosureName#&gt; = ((_ &lt;#arguments#&gt;) -&gt; &lt;#return value#&gt;)?</string>
+	<string>typealias &lt;#ClosureName#&gt; = ((_ &lt;#arguments#&gt;: &lt;#type#&gt;) -&gt; &lt;#return value#&gt;)?</string>
 	<key>IDECodeSnippetIdentifier</key>
 	<string>1528A53D-69CA-4A12-908A-1F85A47A8644</string>
 	<key>IDECodeSnippetLanguage</key>

assets/.xcode-add-code-snippet.gif.icloud

@@ -9,7 +9,7 @@
 		<string>ClassImplementation</string>
 	</array>
 	<key>IDECodeSnippetContents</key>
-	<string>typealias &lt;#ClosureName#&gt; = (_ &lt;#arguments#&gt;) -&gt; &lt;#return value#&gt;</string>
+	<string>typealias &lt;#ClosureName#&gt; = (_ &lt;#arguments#&gt;: &lt;#type#&gt;) -&gt; &lt;#return value#&gt;</string>
 	<key>IDECodeSnippetIdentifier</key>
 	<string>42AA2BDB-AA64-4260-9726-A72C20E79FBB</string>
 	<key>IDECodeSnippetLanguage</key>

assets/.xcode-use-code-snippet.gif.icloud

@@ -23,6 +23,6 @@
 	<key>IDECodeSnippetUserSnippet</key>
 	<true/>
 	<key>IDECodeSnippetVersion</key>
-	<integer>0</integer>
+	<integer>2</integer>
 </dict>
 </plist>

assets/create.gif

@@ -21,6 +21,6 @@
 	<key>IDECodeSnippetUserSnippet</key>
 	<true/>
 	<key>IDECodeSnippetVersion</key>
-	<integer>0</integer>
+	<integer>2</integer>
 </dict>
 </plist>

assets/create.mov

@@ -14,15 +14,19 @@
     func presentModalMailComposerViewController(animated: Bool) {
         if MFMailComposeViewController.canSendMail() {
             let mailComposeVC = MFMailComposeViewController()
-            mailComposeVC.delegate = self
+            mailComposeVC.delegate = <#delegate#>
 
             mailComposeVC.setSubject(<#subject#>)
             mailComposeVC.setMessageBody(<#body#>, isHTML: true)
             mailComposeVC.setToRecipients([<#recipients#>])
 
             present(mailComposeVC, animated: animated, completion: nil)
         } else {
-            UIAlertView(title: NSLocalizedString("Error", value: "Error", comment: ""), message: NSLocalizedString("Your device doesn't support Mail messaging", value: "Your device doesn't support Mail messaging", comment: ""), delegate: nil, cancelButtonTitle: NSLocalizedString("OK", value: "OK", comment: "")).show()
+            let alert = UIAlertController(title: NSLocalizedString("Error", value: "Error", comment: ""),
+                              message: NSLocalizedString("Your device doesn't support Mail messaging", value: "Your device doesn't support Mail messaging", comment: ""),
+                              preferredStyle: .alert)
+            alert.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: "Cancel"), style: .cancel, handler: nil))
+            present(alert, animated: true, completion: nil)
         }
     }
 

assets/use.gif

@@ -15,14 +15,18 @@
         if MFMessageComposeViewController.canSendText() {
             let messageComposeVC = MFMessageComposeViewController()
 
-            messageComposeVC.messageComposeDelegate = self
+            messageComposeVC.messageComposeDelegate = <#delegate#>
             messageComposeVC.body = "<#body#>"
             messageComposeVC.recipients = [<#recipients#>]
 
             present(messageComposeVC, animated: animated, completion: nil)
 
         } else {
-            UIAlertView(title: NSLocalizedString("Error", value: "Error", comment: ""), message: NSLocalizedString("Your device doesn't support messaging", value: "Your device doesn't support messaging", comment: ""), delegate: nil, cancelButtonTitle: NSLocalizedString("OK", value: "OK", comment: "")).show()
+            let alert = UIAlertController(title: NSLocalizedString("Error", value: "Error", comment: ""),
+                              message: NSLocalizedString("Your device doesn't support messaging", value: "Your device doesn't support  messaging", comment: ""),
+                              preferredStyle: .alert)
+            alert.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: "Cancel"), style: .cancel, handler: nil))
+            present(alert, animated: true, completion: nil)
         }
     }
 

assets/use.mov

@@ -32,7 +32,7 @@
         }
 
         func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView {
-            let view = collectionView.dequeueReusableSupplementaryView(ofKind: UICollectionElementKindSectionHeader, withReuseIdentifier: <#identifier#>, for: indexPath) as UIView
+            let view = collectionView.dequeueReusableSupplementaryView(ofKind: UICollectionElementKindSectionHeader, withReuseIdentifier: <#identifier#>, for: indexPath)
             return view
         }</string>
 	<key>IDECodeSnippetIdentifier</key>

assets/xcode-add-code-snippet-2.gif

@@ -18,19 +18,15 @@
 //	  let settings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
 //	  UIApplication.shared.registerUserNotificationSettings(settings)
 
-    func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
+    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
         print("Successfully egistered for Remote Notifications with token: \(deviceToken)")
     }
 
-    func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
+    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
         print("Registration for Remote Notifications failed with error: \(error)")
     }
 
-    func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
-        
-    }
-    
-    public func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
+    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
 
     }</string>
 	<key>IDECodeSnippetIdentifier</key>

assets/xcode-add-code-snippet.mov

@@ -22,6 +22,6 @@
 	<key>IDECodeSnippetUserSnippet</key>
 	<true/>
 	<key>IDECodeSnippetVersion</key>
-	<integer>0</integer>
+	<integer>2</integer>
 </dict>
 </plist>