Push Notification -didFinishLaunchingWithOptions

问题:

When I send a push notification and my app is open or in the background and I click on the push notification, my application redirects to PushMessagesVc viewController (as intended)

I use the code as below for this:

-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {     UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];     PushMessagesVc *pvc = [mainstoryboard instantiateViewControllerWithIdentifier:@"PushMessagesVc"];      [self.window.rootViewController presentViewController:pvc                                                  animated:YES                                                completion:NULL]; } 

There is no problem in the code/scenario above but if the application is closed and I click on a push notification, the application does not redirect my PushMessagesVc viewController in this case & the application stays on the main screen.

For the 2nd scenario, I use the following code:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {     sleep(1);     [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeNone)];     [UIApplication sharedApplication].applicationIconBadgeNumber = 1;      NSDictionary *userInfo = [launchOptions valueForKey:@"UIApplicationLaunchOptionsRemoteNotificationKey"];     NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];      if(apsInfo) {         UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];         PushMessagesVc* pvc = [mainstoryboard instantiateViewControllerWithIdentifier:@"PushMessagesVc"];         [self.window.rootViewController presentViewController:pvc animated:YES completion:NULL];         return YES;     }     return YES; } 

But in this case, the PushMessagesVc does not appear.

回答1:

Since you only want to present a viewController when you get a Push Notification, you may try utilizing NSNotificationCenter for your purposes:

Part 1: Set up a class (in your case, the rootViewController) to listen/respond to a NSNotification

Suppose, MainMenuViewController is the rootViewController of your navigationController.
Set up this class to listen to a NSNotification:

- (void)viewDidLoad {     //...     [[NSNotificationCenter defaultCenter] addObserver:self                                              selector:@selector(presentMyViewOnPushNotification)                                                  name:@"HAS_PUSH_NOTIFICATION"                                                object:nil]; }  -(void)presentMyViewOnPushNotification {     //The following code is no longer in AppDelegate     //it should be in the rootViewController class (or wherever you want)      UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];     PushMessagesVc *pvc = [mainstoryboard instantiateViewControllerWithIdentifier:@"PushMessagesVc"];      [self presentViewController:pvc animated:YES completion:nil];     //either presentViewController (above) or pushViewController (below)     //[self.navigationController pushViewController:pvc animated:YES]; } 

---

Part 2: Post Notification (possible from anywhere in your code)

In your case, AppDelegate.m methods should look like:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {     //firstly, don't sleep the thread, it's pointless     //sleep(1); //remove this line      if (launchOptions) { //launchOptions is not nil         NSDictionary *userInfo = [launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey];         NSDictionary *apsInfo = [userInfo objectForKey:@"aps"];          if (apsInfo) { //apsInfo is not nil             [self performSelector:@selector(postNotificationToPresentPushMessagesVC)                         withObject:nil                        afterDelay:1];         }     }     return YES; }  -(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {     //this method can be done using the notification as well     [self postNotificationToPresentPushMessagesVC]; }  -(void)postNotificationToPresentPushMessagesVC {     [[NSNotificationCenter defaultCenter] postNotificationName:@"HAS_PUSH_NOTIFICATION" object:nil]; } 

---

PS: I haven't done this for my projects (yet) but it works and is the best way i could think of doing this kinda stuff (for the moment)

回答2:

Swift 2.0 For 'Not Running' State (Local & Remote Notification)

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {   // Handle notification if (launchOptions != nil) {      // For local Notification     if let localNotificationInfo = launchOptions?[UIApplicationLaunchOptionsLocalNotificationKey] as? UILocalNotification {          if let something = localNotificationInfo.userInfo!["yourKey"] as? String {              self.window!.rootViewController = UINavigationController(rootViewController: YourController(yourMember: something))         }       } else      // For remote Notification     if let remoteNotification = launchOptions?[UIApplicationLaunchOptionsRemoteNotificationKey] as! [NSObject : AnyObject]? {          if let something = remoteNotification["yourKey"] as? String {             self.window!.rootViewController = UINavigationController(rootViewController: YourController(yourMember: something))         }     }  }   return true 

}

回答3:

Swift 3 To get push notification Dictionary in didFinishLaunchingWithOptions when app is kill and push notification receive and user click on that

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {     if let userInfo = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [String: AnyObject] {         if let aps1 = userInfo["aps"] as? NSDictionary {             print(aps1)         }     }     return true } 

Push notification Dictionary will display in alert.

回答4:

Swift version:

   if let localNotification: UILocalNotification = launchOptions?[UIApplicationLaunchOptionsLocalNotificationKey] as? UILocalNotification { //launchOptions is not nil         self.application(application, didReceiveLocalNotification: localNotification)     } 

文章来源: Push Notification -didFinishLaunchingWithOptions