Play a sound file in ObjC

playSound.m

// from http://codewithchris.com/avaudioplayer-tutorial/
@interface ViewController ()
{
    AVAudioPlayer *_audioPlayer;
}
@end



// Construct URL to sound file
- (void)viewDidLoad
{
    [super viewDidLoad];
	
    // Construct URL to sound file
    NSString *path = [NSString stringWithFormat:@"%@/drum01.mp3", [[NSBundle mainBundle] resourcePath]];
    NSURL *soundUrl = [NSURL fileURLWithPath:path];
    
    // Create audio player object and initialize with URL to sound
    _audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:soundUrl error:nil];
}