iOS摇一摇功能方法实现

//只需要让这个Controller本身支持摇动 //同时让他成为第一相应者： - (void)viewDidLoad {    [super viewDidLoad];     [[UIApplicationsharedApplication] setApplicationSupportsShakeToEdit:YES];     [selfbecomeFirstResponder];}    //然后去实现那几个方法 - (void) motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event {     //检测到摇动 }    - (void) motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event {     //摇动取消 }    - (void) motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {     //摇动结束     if (event.subtype == UIEventSubtypeMotionShake) {         //something happens     } }