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>      if (*iShouldKeepBuzzing) {        AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);        } else {             //Unregister, so we don't get called again...             AudioServicesRemoveSystemSoundCompletion(kSystemSoundID_Vibrate);        }   }     以下为调用的代码:  BOOL iShouldKeepBuzzing = YES;  AudioServicesAddSystemSoundCompletion (    kSystemSoundID_Vibrate,                                                                          NULL,                                                                                                       NULL,                                                      上一页  [1] [2] [3] [4] [5] [6] 下一页  
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