Bug 8695 - Add Events for methods in UIApplication.SharedApplication
Summary: Add Events for methods in UIApplication.SharedApplication
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 6.1.x
Hardware: PC All
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-11-30 14:02 UTC by Redth
Modified: 2017-01-05 04:42 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Redth 2012-11-30 14:02:22 UTC
It would be extremely useful if there were some events that can currently be overridden in the UIApplicationDelegate as methods.

Here's the additions I'd like to see:

UIApplication.SharedApplication.OnRegisteredForRemoteNotifications(UIApplication app, NSData deviceToken);
UIApplication.SharedApplication.OnFailedToRegisterForRemoteNotifications(UIApplication app, NSError error);
UIApplication.SharedApplication.ReceivedRemoteNotification(UIApplication app, NSDictionary userInfo);

These events should be fired whether or not the methods have been overridden in the AppDelegate.  

SharedApplication might not be the right spot for this, but what I'm getting at is needing a way to know these things have happened without being the delegate.

The main use case I have for this right now is trying to make an abstract 'client' library for PushSharp.  Currently, it would require users of the library to use my own implementation of UIApplicationDelegate.  This may be ok for some, but once you start using things like MvvmCross, etc., you would be competing for which implementation of UIApplicationDelegate to use...

Is this a possibility, or anything similar?
Comment 1 Redth 2012-11-30 14:23:16 UTC
Not sure why I didn't think of this earlier, but perhaps an easier way would be for MonoTouch to under the hood post a notification to the NSNotificationCenter.DefaultCenter with a particular name... eg:

NSNotificationCenter.DefaultCenter.PostNotificationName("UIApplicationDelegate.RegisteredForRemoteNotifications", deviceToken);

NSNotificationCenter.DefaultCenter.PostNotificationName("UIApplicationDelegate.FailedToRegisterForRemoteNotifications", error);

NSNotificationCenter.DefaultCenter.PostNotificationName("UIApplicationDelegate.ReceivedRemoteNotification", userInfo);

This way the notifications could be easily consumed by any library, including a PushSharp client...
Comment 2 Alex Soto [MSFT] 2017-01-05 04:42:58 UTC
The way this works is to subscribe to the notification you want to hear about, but we "Xamarin.iOS" have no reason to fire these events ourselves so we can't really bake this on our side