sound for control event

// cant remember where i got this from, not my code though


- (void)setSoundNamed:(NSString *)name forControlEvent:(UIControlEvents)controlEvent
{
	// Remove the old UI sound.
	NSString *oldSoundKey = [NSString stringWithFormat:@"%lu", (unsigned long)controlEvent];
	AVAudioPlayer *oldSound = [self sounds][oldSoundKey];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wselector"
	[self removeTarget:oldSound action:@selector(play) forControlEvents:controlEvent];
#pragma clang diagnostic pop
	// Set appropriate category for UI sounds.
	// Do not mute other playing audio.
    [[AVAudioSession sharedInstance] setCategory:@"AVAudioSessionCategoryAmbient" error:nil];
	
	// Find the sound file.
    NSString *file = [name stringByDeletingPathExtension];
    NSString *extension = [name pathExtension];
    NSURL *soundFileURL = [[NSBundle mainBundle] URLForResource:file withExtension:extension];
	
    NSError *error = nil;
	
	// Create and prepare the sound.
	AVAudioPlayer *tapSound = [[AVAudioPlayer alloc] initWithContentsOfURL:soundFileURL error:&error];
    [tapSound setVolume:0.8f];
	NSString *controlEventKey = [NSString stringWithFormat:@"%lu", (unsigned long)controlEvent];
	NSMutableDictionary *sounds = [self sounds];
	[sounds setObject:tapSound forKey:controlEventKey];
	[tapSound prepareToPlay];
	if (!tapSound) {
		DLog(@"Couldn't add sound - error: %@", error);
		return;
	}
	
	// Play the sound for the control event.
	[self addTarget:tapSound action:@selector((play)) forControlEvents:controlEvent];
}