iOS：如何实现“摇动设备”事件？ [英] iOS: How to Implement a "Shake Device" event?

问题描述

我想向我的应用程序发送摇动设备事件 - 即，当用户摇动设备时会发生某些事情。
我尝试实现：

I want to a "Shake Device" event to my app - i.e., when the user shakes the device something happens. I tried implementing:

-(void) motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {
    if (event.subtype == UIEventSubtypeMotionShake) {
        //something happens
    }
}

它似乎不起作用.......

有谁知道我应该使用哪种方法？

It doesn't seem to work.......
Does anyone knows which method I should use?

推荐答案

尝试使用下面的代码，它对我来说很好。

Try using the below code, it worked fine for me.

- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    if ( event.subtype == UIEventSubtypeMotionShake )
       {
          //your code
       }

    if ( [super respondsToSelector:@selector(motionEnded:withEvent:)] )
                [super motionEnded:motion withEvent:event];
}
- (BOOL)canBecomeFirstResponder
{
    return YES;
}

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