AVAudioPlayer: Simple sound not playing

Question

I'm trying to figure out why sounds aren't playing in my app, so I created what I think is as simple an implementation as possible:

  NSError *error;
   NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"canary-trills" ofType:@"wav"];
  NSLog(@"string=%@", soundFilePath);
  NSURL *url = [[NSURL alloc] initFileURLWithPath:soundFilePath];
  NSLog(@"URL=%@", url);
  AVAudioPlayer *avPlayer = [[AVAudioPlayer alloc]
                            initWithContentsOfURL:url error:&error];
  [avPlayer prepareToPlay];
  BOOL success = [avPlayer play];
  NSLog(@"The sound %@ play", success ? @"did" : @"didn't");

Per the console, it looks like it finds the resource, creates the URL correctly. Even the play call indicates success. However, no sound play in the simulator nor the device.

Answer 1

AVAudioPlayer wasn't being retained & was going out of scope.

Adding: @property (strong, nonatomic) AVAudioPlayer *audioPlayer;

to the class & using that member solved the issue.