Update Swift Example to Swift 3.0

Ref #51.

.swiftlint.yml

@@ -1,4 +1,5 @@
 disabled_rules:
   - line_length
 force_cast: warning
+trailing_semicolon: error
 

Example/SKYKit.xcodeproj/project.pbxproj

@@ -540,6 +540,7 @@
 				TargetAttributes = {
 					3813B6A41D35E62C004F4E14 = {
 						CreatedOnToolsVersion = 7.3;
+						LastSwiftMigration = 0830;
 					};
 					38A48B3F1D34E41800988B84 = {
 						CreatedOnToolsVersion = 7.3;
@@ -1049,7 +1050,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "io.skygear.skykit.Swift-Example";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 2.3;
+				SWIFT_VERSION = 3.0;
 			};
 			name = Debug;
 		};
@@ -1071,7 +1072,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = "io.skygear.skykit.Swift-Example";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 2.3;
+				SWIFT_VERSION = 3.0;
 			};
 			name = Release;
 		};

Example/Swift Example/AppDelegate.swift

@@ -25,27 +25,27 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     var window: UIWindow?
 
-    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.
-        let endpoint = NSUserDefaults.standardUserDefaults().stringForKey("SkygearEndpoint")
+        let endpoint = UserDefaults.standard.string(forKey: "SkygearEndpoint")
         if let endpointValue = endpoint {
-            SKYContainer.defaultContainer().configAddress(endpointValue)
+            SKYContainer.default().configAddress(endpointValue)
         }
 
-        let apiKey = NSUserDefaults.standardUserDefaults().stringForKey("SkygearApiKey")
+        let apiKey = UserDefaults.standard.string(forKey: "SkygearApiKey")
         if let apiKeyValue = apiKey {
-            SKYContainer.defaultContainer().configureWithAPIKey(apiKeyValue)
+            SKYContainer.default().configure(withAPIKey: apiKeyValue)
         }
 
         application.registerUserNotificationSettings(UIUserNotificationSettings(
-            forTypes: [.Alert, .Badge, .Sound],
+            types: [.alert, .badge, .sound],
             categories: nil
         ))
 
         return true
     }
 
-    func application(application: UIApplication, didRegisterUserNotificationSettings notificationSettings: UIUserNotificationSettings) {
+    func application(_ application: UIApplication, didRegister notificationSettings: UIUserNotificationSettings) {
         guard !notificationSettings.types.isEmpty else {
             print("User does not allow notification")
             return
@@ -54,18 +54,18 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         application.registerForRemoteNotifications()
     }
 
-    func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
+    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
         print("Successfully registered remote notification")
 
-        let skygear = SKYContainer.defaultContainer()
+        let skygear = SKYContainer.default()
         guard skygear.currentUser != nil else {
             print("User not yet login, abort registering device")
             return
         }
 
-        skygear.registerDeviceWithDeviceToken(deviceToken) { (deviceID, error) in
+        skygear.registerDevice(withDeviceToken: deviceToken) { (deviceID, error) in
             guard error == nil else {
-                print("Failed to register device: \(error.localizedDescription)")
+                print("Failed to register device: \(error?.localizedDescription)")
                 return
             }
 
@@ -77,7 +77,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         }
     }
 
-    func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
+    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
         print("Failed to register remote notification: \(error.localizedDescription)")
     }
 }

Example/Swift Example/Predicate/PickerTableViewCell.swift

@@ -28,7 +28,7 @@ class PickerTableViewCell: UITableViewCell {
         // Initialization code
     }
 
-    override func setSelected(selected: Bool, animated: Bool) {
+    override func setSelected(_ selected: Bool, animated: Bool) {
         super.setSelected(selected, animated: animated)
 
         // Configure the view for the selected state

Example/Swift Example/Predicate/TextFieldTableViewCell.swift

@@ -28,7 +28,7 @@ class TextFieldTableViewCell: UITableViewCell {
         // Initialization code
     }
 
-    override func setSelected(selected: Bool, animated: Bool) {
+    override func setSelected(_ selected: Bool, animated: Bool) {
         super.setSelected(selected, animated: animated)
 
         // Configure the view for the selected state

Example/Swift Example/View Controllers/MainViewController.swift

@@ -23,11 +23,11 @@ class MainViewController: UITableViewController {
 
     var hasPromptedForConfiguration: Bool {
         get {
-            return NSUserDefaults.standardUserDefaults().boolForKey("HasPromptedForConfiguration")
+            return UserDefaults.standard.bool(forKey: "HasPromptedForConfiguration")
         }
         set {
-            NSUserDefaults.standardUserDefaults().setBool(newValue, forKey: "HasPromptedForConfiguration")
-            NSUserDefaults.standardUserDefaults().synchronize()
+            UserDefaults.standard.set(newValue, forKey: "HasPromptedForConfiguration")
+            UserDefaults.standard.synchronize()
         }
     }
 
@@ -39,16 +39,16 @@ class MainViewController: UITableViewController {
         if !self.hasPromptedForConfiguration {
             let alert = UIAlertController(title: "Configuration Required",
                                           message: "The app does not know how to connect to your Skygear Server. Configure the app now?",
-                                          preferredStyle: .Alert)
-            alert.addAction(UIAlertAction(title: "Ignore", style: .Cancel, handler: { (action) in
+                                          preferredStyle: .alert)
+            alert.addAction(UIAlertAction(title: "Ignore", style: .cancel, handler: { (_) in
                 self.hasPromptedForConfiguration = true
             }))
-            alert.addAction(UIAlertAction(title: "Configure", style: .Default, handler: { (action) in
+            alert.addAction(UIAlertAction(title: "Configure", style: .default, handler: { (_) in
                 self.hasPromptedForConfiguration = true
-                self.performSegueWithIdentifier("server_configuration", sender: self)
+                self.performSegue(withIdentifier: "server_configuration", sender: self)
             }))
             alert.preferredAction = alert.actions.last
-            self.presentViewController(alert, animated: true, completion: nil)
+            self.present(alert, animated: true, completion: nil)
         }
 
     }
@@ -60,9 +60,9 @@ class MainViewController: UITableViewController {
 
     // MARK: - Navigation
 
-    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
+    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
         if segue.identifier == "create_record" {
-            let controller = segue.destinationViewController as! RecordViewController
+            let controller = segue.destination as! RecordViewController
             controller.creatingNewRecord = true
         }
     }