Play sound with screen turned off / don't let iPhone go to sleep

Question

So I have an application and I want to keep it working even if the screen is turned off. Previously when I wanted to do that I used this hack/trick - I play a silent/empty s

Answer 1

I don't know about Apple fixing stuff, but in iOS 4 there are now official ways to continue doing things in the background which you should take advantage of.

Answer 2

So the answer is to set session category. Some categories just turn off sound when the device is being locked. For me the best option was AVAudioSessionCategoryPlayback

[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: nil];