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

author	ms.author	ms.service	ms.topic	ms.date
conceptdev	crdun	app-service-mobile	include	08/23/2018

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) {}
   
   }