app-service-mobile-add-push-notifications-to-ios-app.md

Objective-C:

1. In QSAppDelegate.m, import the iOS SDK and QSTodoService.h:

    #import <MicrosoftAzureMobile/MicrosoftAzureMobile.h>
    #import "QSTodoService.h"
   

2. In didFinishLaunchingWithOptions in QSAppDelegate.m, insert the following lines right before return YES;:

    UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
   

3. In QSAppDelegate.m, add the following handler methods. Your app is now updated to support push notifications.

    // Registration with APNs is successful
    - (void)application:(UIApplication *)application
    didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
   
        QSTodoService *todoService = [QSTodoService defaultService];
        MSClient *client = todoService.client;
   
        [client.push registerDeviceToken:deviceToken completion:^(NSError *error) {
            if (error != nil) {
                NSLog(@"Error registering for notifications: %@", error);
            }
        }];
    }
   
    // Handle any failure to register
    - (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:
    (NSError *)error {
        NSLog(@"Failed to register for remote notifications: %@", error);
    }
   
    // Use userInfo in the payload to display an alert.
    - (void)application:(UIApplication *)application
          didReceiveRemoteNotification:(NSDictionary *)userInfo {
        NSLog(@"%@", userInfo);
   
        NSDictionary *apsPayload = userInfo[@"aps"];
        NSString *alertString = apsPayload[@"alert"];
   
        // Create alert with notification content.
        UIAlertController *alertController = [UIAlertController
                                      alertControllerWithTitle:@"Notification"
                                      message:alertString
                                      preferredStyle:UIAlertControllerStyleAlert];
   
        UIAlertAction *cancelAction = [UIAlertAction
                                       actionWithTitle:NSLocalizedString(@"Cancel", @"Cancel")
                                       style:UIAlertActionStyleCancel
                                       handler:^(UIAlertAction *action)
                                       {
                                           NSLog(@"Cancel");
                                       }];
   
        UIAlertAction *okAction = [UIAlertAction
                                   actionWithTitle:NSLocalizedString(@"OK", @"OK")
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction *action)
                                   {
                                       NSLog(@"OK");
                                   }];
   
        [alertController addAction:cancelAction];
        [alertController addAction:okAction];
   
        // Get current view controller.
        UIViewController *currentViewController = [[[[UIApplication sharedApplication] delegate] window] rootViewController];
        while (currentViewController.presentedViewController)
        {
            currentViewController = currentViewController.presentedViewController;
        }
   
        // Display alert.
        [currentViewController presentViewController:alertController animated:YES completion:nil];
   
    }
   

Swift:

1. Add file ClientManager.swift with the following contents. Replace %AppUrl% with the URL of the Azure Mobile App backend.

    class ClientManager {
        static let sharedClient = MSClient(applicationURLString: "%AppUrl%")
    }
   

2. In ToDoTableViewController.swift, replace the let client line that initializes an MSClient with this line:

    let client = ClientManager.sharedClient
   

3. In AppDelegate.swift, replace the body of func application as follows:

    func application(application: UIApplication,
      didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
       application.registerUserNotificationSettings(
           UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound],
               categories: nil))
       application.registerForRemoteNotifications()
       return true
    }
   

4. In AppDelegate.swift, add the following handler methods. Your app is now updated to support push notifications.

    func application(application: UIApplication,
       didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
        ClientManager.sharedClient.push?.registerDeviceToken(deviceToken) { error in
            print("Error registering for notifications: ", error?.description)
        }
    }
   
    func application(application: UIApplication,
       didFailToRegisterForRemoteNotificationsWithError error: NSError) {
        print("Failed to register for remote notifications: ", error.description)
    }
   
    func application(application: UIApplication,
       didReceiveRemoteNotification userInfo: [NSObject: AnyObject]) {
   
        print(userInfo)
   
        let apsNotification = userInfo["aps"] as? NSDictionary
        let apsString       = apsNotification?["alert"] as? String
   
        let alert = UIAlertController(title: "Alert", message: apsString, preferredStyle: .Alert)
        let okAction = UIAlertAction(title: "OK", style: .Default) { _ in
            print("OK")
        }
        let cancelAction = UIAlertAction(title: "Cancel", style: .Default) { _ in
            print("Cancel")
        }
   
        alert.addAction(okAction)
        alert.addAction(cancelAction)
   
        var currentViewController = self.window?.rootViewController
        while currentViewController?.presentedViewController != nil {
            currentViewController = currentViewController?.presentedViewController
        }
   
        currentViewController?.presentViewController(alert, animated: true) {}
   
    }