ios - FBLikeControl callback

Question

is there any way I can get some kind of feedback from the new FBLikeControl if the user liked the page? Or at least to know somehow, that he returned back to the app from the Facebook app?

Answer 1

Update:

Since Facebook apparently made this header private, you now have to subscribe directly to the notification using a raw string:

[[NSNotificationCenter defaultCenter] addObserver:myObject selector:@selector(myCallback:) name:@"FBLikeActionControllerDidUpdateNotification"];

Old answer for reference:

For anyone in the future looking for this: I ended up subscribing myself to FBLikeActionControllerDidUpdateNotification notifications. Once the notification is received you can do the following:

if ([notification.object isKindOfClass:[FBLikeActionController class]]) {
    if ([(FBLikeActionController*)notification.object objectIsLiked]) {
       // do your stuff here, user liked!
    }
}