iPhone SDK - 线程触发振动

发布于 2024-08-31 04:56:50 字数 642 浏览 14 评论 0原文

我目前正在开发一个 iPhone 应用程序，如果发生特殊事件，它应该使手机振动。

触发警报的检查是在线程中完成的。

拨打电话，手机不会振动

 AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

不幸的是，如果我从线程内部。（如果我在“viewDidAppear”方法中调用它，效果很好）。

我什至尝试从 thead 内部进行回调，如下所示：

 inside Thread:
 [self performSelectorOnMainThread:@selector(doAlarm) 
                                               withObject:nil 
                                            waitUntilDone:true];    

 -(void)doAlarm {
   AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);            
 }

其结果相同：手机没有振动。

如何使手机从线程内部振动？

提前致谢

原文

I'm currently working on an IPhone App that should make the phone vibrate if a special event occurs.

The checks to trigger the alert is done in a thread.

Unfortunately the phone won't vibrate if I call

 AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

from inside the thread. (It works fine if I call this in my "viewDidAppear" method).

I even tried to do a callback from inside the thead like this:

 inside Thread:
 [self performSelectorOnMainThread:@selector(doAlarm) 
                                               withObject:nil 
                                            waitUntilDone:true];    

 -(void)doAlarm {
   AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);            
 }

which has the same result: No vibration on the phone.

How do I make the phone vibrate from inside a thread ??

Thanks in advance

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