view抖动

#pragma mark -水平左右画面抖动效果
+ (void)shakeViewHorizontal:(UIView*)viewToShake
{
    CGFloat t =2.0;
    //左右抖动效果
    CGAffineTransform translateRight  =CGAffineTransformTranslate(CGAffineTransformIdentity, t,0.0);
    CGAffineTransform translateLeft =CGAffineTransformTranslate(CGAffineTransformIdentity,-t,0.0);
    
    viewToShake.transform = translateLeft;
    
    [UIView animateWithDuration:0.07 delay:0.0 options:UIViewAnimationOptionAutoreverse|UIViewAnimationOptionRepeat animations:^{
        [UIView setAnimationRepeatCount:2.0];
        viewToShake.transform = translateRight;
    } completion:^(BOOL finished){
        if(finished){
            [UIView animateWithDuration:0.5 delay:0.0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
                viewToShake.transform =CGAffineTransformIdentity;
            } completion:NULL];
        }
    }];
}

#pragma mark - 垂直上下画面抖动效果
+ (void)shakeViewVertical:(UIView*)viewToShake
{
    CGFloat t =2.0;
    
    //上下抖动效果
    CGAffineTransform translateMiddle  =CGAffineTransformTranslate(CGAffineTransformIdentity, 0.0,t);
    CGAffineTransform translateTop =CGAffineTransformTranslate(CGAffineTransformIdentity,0.0,-t);
    
    viewToShake.transform = translateMiddle;
    
    [UIView animateWithDuration:0.1 delay:0.0 options:UIViewAnimationOptionAutoreverse|UIViewAnimationOptionRepeat animations:^{
        
        [UIView setAnimationRepeatCount:1.0];
        viewToShake.transform = translateTop;
        
    } completion:^(BOOL finished){
        if(finished){
            
            [UIView animateWithDuration:0.5 delay:0.0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
                viewToShake.transform =CGAffineTransformIdentity;
                
            } completion:NULL];
        }
    }];

}

调用：

[Utility shakeViewHorizontal:self.drawSignView];