关于iOS音效问题

1、播放音效

需要导入AVFoundation库 导入头文件

<AVFoundation/AVFoundation.h>
具体方法：

NSURL *url = [[NSBundle mainBundle] URLForResource:@"activity_yao_2.caf" withExtension:nil];
SystemSoundID soundID = 0;
AudioServicesCreateSystemSoundID((__bridge CFURLRef)(url), &soundID);
AudioServicesPlaySystemSound(soundID);