音效SystemSoundID

音效的播放

1.获得音效文件的路径

　　NSURL *url = [[NSBundle mainBundle] URLForResource:@"m_03.wav" withExtension:nil];

2.加载音效文件，得到对应的音效ID

　　SystemSoundID soundID = 0;

　　AudioServicesCreateSystemSoundID((__bridge CFURLRef)(url), &soundID);

3.播放音效

　　AudioServicesPlaySystemSound(soundID);

 

- (void)playSound:(NSString *)soundName

{

    SystemSoundID soundID;

    NSURL* sample = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:soundName ofType:@"m4a"]];

    

    OSStatus err = AudioServicesCreateSystemSoundID((__bridge CFURLRef)(sample), &soundID);

    if (err)

    {

        NSLog(@"Error occurred assigning system sound!");

        return;

    }

    

    AudioServicesAddSystemSoundCompletion(soundID, NULL, NULL, SoundFinished,(__bridge void *)(sample));

    AudioServicesPlaySystemSound(soundID);

    CFRunLoopRun();

}