实现类似iphone手机删除应用程序的抖动效果

其实原理很简单，让图片向左，再向右旋转一定角度就可以啦

static BOOL wobblesLeft = NO;

    UIButton * button=[UIButton buttonWithType:UIButtonTypeCustom];

    [button setImage:[UIImage imageNamed:@"宝宝日记_1.png"] forState:UIControlStateNormal];

    button.frame=CGRectMake(10, 10, 40, 40);

    CGFloat rotation=(3*M_PI)/180;

    CGAffineTransform wobbleLeft=CGAffineTransformMakeRotation(rotation);

    CGAffineTransform wobbleRight=CGAffineTransformMakeRotation(-rotation);

    [UIView beginAnimations:nil context:nil];

    [UIView setAnimationDuration:0.2];

    [UIView setAnimationDelegate:self];

    [UIView setAnimationRepeatCount:999999999];

    button.transform = wobblesLeft ? wobbleRight : wobbleLeft;

    wobblesLeft = !wobblesLeft;

    [UIView commitAnimations];

    [self.view addSubview:button];