How to support airplay in the background in iOS6

Question

My app should stream video's to an AppleTV via Airplay, even when the app is in the background.

Under iOS5 it worked perfectly. In iOS6 it does not.

Xcode gives me a deprecated warning on this line of code:

moviePlayerViewController.moviePlayer.useApplicationAudioSession = NO;

Is this the reason why my app isn't functioning correctly anymore. What is the equivalent of this piece of code in iOS6?

Answer 1

Found the solution: this problem can be solved by setting the right AVAudioSessionCategory

NSError *setCategoryError = nil;
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error: &setCategoryError];

Answer 2

Besides @murze's solution you should also set value App plays audio for Required background modes key in infoPlist file like @ACBurk suggested: https://stackoverflow.com/a/8807958/384864