iPhone registerForRemoteNotificationTypes does not generate an error but does not fire delegate that gives device token

user_389040 0
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I am developing an iPhone app that needs push notification. I followed the instructions for creating the certifications and modifying the app ID. I am not totally sure I did this correctly, but I did follow the directions. Any idea how I can check to see if this is OK?

When I ran in the emulator I did get an error message saying that the emulator did not support push notifications. This was somewhat expected.

BTW: I have seem this question out there a few times. It always seems to be with a jail-broken phone. My phone is NOT jail-broken.

But when I debug on the iPhone the didRegisterForRemoteNotificationsWithDeviceToken method is never fired off. I will really appreciate some help. My code follows.

-(void)applicationDidFinishLaunching:(UIApplication *)application 
{    
   rootController.delegate = self;
   [window addSubview:rootController.view];
   [window makeKeyAndVisible];

   [[UIApplication sharedApplication] 
   registerForRemoteNotificationTypes:
   (UIRemoteNotificationTypeAlert | 
     UIRemoteNotificationTypeBadge | 
     UIRemoteNotificationTypeSound)];
}

- (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken 
{ 
   NSString *str = 
    [NSString stringWithFormat:@"%@",deviceToken];
    NSLog(str);
}

- (void)application:(UIApplication *)app didFailToRegisterForRemoteNotificationsWithError:(NSError *)err 
{ 
    NSString *str = [NSString stringWithFormat: @"Error: %@", err];
    NSLog(str);    
}
devicetoken appdelegate apple-push-notifications iphone ios
7 Answers

I had the same issue.

For me, it was the notification setting for the App had everything turned off.

If in the iOS settings app notifications are disabled, that method will not get called.

Once I turned on a notification type it started to work.

Settings App->Notification Settings->[My App]

user_10526160

I faced the same issue in iOS 11.3 device where none of the delegate methods were getting called. So, according to Apple documentation :-

https://developer.apple.com/library/content/technotes/tn2265/_index.html

When the first push-capable app is installed, iOS or OS X attempts to establish a persistent network connection to the push service that will be shared by all push-capable apps on the system. If neither delegate callback application:didRegisterForRemoteNotificationsWithDeviceToken: nor application:didFailToRegisterForRemoteNotificationsWithError: is called, that means that this connection has not yet been established.

Further on,

This is not necessarily an error condition. The system may not have Internet connectivity at all because it is out of range of any cell towers or Wi-Fi access points, or it may be in airplane mode. Instead of treating this as an error, your app should continue normally, disabling only that functionality that relies on push notifications.

I tried connecting to other network and again start performing register notification operation and Voila!, it worked like a charm. So, I guess there was a problem in registering for notification which was calling neither of the delegate methods.

user_77780040
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