IOS基础知识记录二

1.提醒用户信息, 铃声提醒或者震动提示
SystemSoundID soundID;
    NSString *url = [[NSBundle mainBundle] pathForResource: @"sound" ofType: @"wav"];
    
    AudioServicesCreateSystemSoundID((__bridge CFURLRef)[NSURL fileURLWithPath:url], &soundID);
    AudioServicesPlaySystemSound(soundID);
   //AudioServicesPlayAlertSound(soundID)


AudioServicesPlaySystemSound如果系统静音, 则用户提示就没有什么效果
AudioServicesPlayAlertSound如果静音会震动,否则声音提示
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);单一的震动

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