UIResponder中存在這麼一套方法
- (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent*)event__OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent*)event__OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);
- (void)motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent*)event__OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0);
這就是執行搖一搖的方法。那麼怎麼用這些方法呢？
很簡單，你只需要讓這個Controller本身支持搖動
同時讓他成為第一相應者：
- (void)viewDidLoad
{
    [superviewDidLoad];
 [[UIApplication sharedApplication]setApplicationSupportsShakeToEdit:YES];
[self becomeFirstResponder];
}
然後去實現那幾個方法就可以了
- (void) motionBegan:(UIEventSubtype)motionwithEvent:(UIEvent
*)event
{
    //檢測到搖動
}
- (void) motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent*)event
{
    //搖動取消
}
- (void) motionEnded:(UIEventSubtype)motion withEvent:(UIEvent*)event
{
    //搖動結束
    if(event.subtype == UIEventSubtypeMotionShake) {
        //somethinghappens
    }
}