shake me 摇一摇

gistfile1.txt

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{    
    application.applicationSupportsShakeToEdit = YES;
}
shakeViewController.m
-(BOOL)canBecomeFirstResponder {
    return YES;
}

-(void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    [self becomeFirstResponder];
}

- (void)viewWillDisappear:(BOOL)animated {
    [self resignFirstResponder];
    [super viewWillDisappear:animated];
}


- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event
{
    if (motion == UIEventSubtypeMotionShake)
    {
        // play sound
        NSURL *audioPath = [[NSBundle mainBundle] URLForResource:@"message_3" withExtension:@"wav"];
        AudioServicesCreateSystemSoundID((__bridge CFURLRef)audioPath, &completeSound);
        AudioServicesPlaySystemSound (completeSound);
        
        [UIView animateWithDuration:0.7f animations:^
         {
             [self.shakeImageView setAlpha:0];
         }
                         completion:^(BOOL finished)
         {
             [self.shakeImageView removeFromSuperview];
             [self.view addSubview:self.afterView];

         }
        ];
                
    }
}