Question

I am using the AVFoundation framework to play a sound. At the beginning of the file, I have:

#import <AVFoundation/AVAudioPlayer.h>

And the AVFoundation framework is properly added to my project. However, when I use this code to play a sound, the app crashes:

NSString *pathForBgMusicFile = [[NSBundle mainBundle] pathForResource:@"ClenchedTeeth" ofType:@"mp3"];
NSURL *bgMusicFile = [[NSURL alloc] initFileURLWithPath:pathForBgMusicFile];
AVAudioPlayer *bgMusic = [[AVAudioPlayer alloc] initWithContentsOfURL:bgMusicFile error:NULL];
[bgMusic play];

Does anyone know how to fix this? Thanks in advance!

Answer 1

Try setting up the AVAudioSession as well before you attempt playback. Like this:

  AVAudioSession *audioSession = [AVAudioSession sharedInstance];
  audioSession.delegate = self;
  [audioSession setActive:YES error:nil];
  [audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];

Remember to import it, and make sure your class implements both AVAudioPlayerDelegate and AVAudioSessionDelegate.