사운드

#import <AudioToolbox/AudioToolbox.h>

- (void)playClick
{
    NSString *sndpath = [[NSBundle mainBundle] pathForResource:@"click" ofType:@"wav"];
    CFURLRef baseURL = (CFURLRef)CFBridgingRetain([NSURL fileURLWithPath:sndpath]);
   
    SystemSoundID sysSound;
    AudioServicesCreateSystemSoundID(baseURL, &sysSound);
    CFRelease(baseURL);
   
    AudioServicesAddSystemSoundCompletion(sysSound, NULL, NULL, _systemSoundDidComplete, NULL);

    AudioServicesPlaySystemSound(sysSound);
}

void _systemSoundDidComplete(SystemSoundID ssID, void *clientData)
{
    AudioServicesDisposeSystemSoundID(ssID);
}