在玩UIPanGestureRecognizer时做UIAnimation

Question

我在做平移对象后设置动画效果

-(void)panView:(UIPanGestureRecognizer*)recognizer{
    //do sth...

    if(recogizer.state==UIGestureRecognizerStateEnded){
        [UIView animateWithDuration:1 delay:0 options:UIViewAnimationOptionCurveEaseOut animation^{
            //do sth2...
        }completion:^(BOOL finished){
            //do sth3...
        }];
    }

}

问题是当动画播放的时候，我又把那个物体移过来了。新的摇摄是不会发生的，我应该等到动画完成，这样我可以再次进行摇摄。

我怎么能中断动画突然做新的摇摄？

溶液

将UIViewAnimationOptionAllowUserInteraction添加到选项中。并且可以在重做pan之前设置self.layer removeAllAnimations。

Answer 1

试试下面的代码

-(void)panView:(UIPanGestureRecognizer*)recognizer
{

    //do sth...

    [animatingView.layer removeAllAnimations];

    if(recogizer.state==UIGestureRecognizerStateEnded)
    {
        [UIView animateWithDuration:1 delay:0 options:UIViewAnimationOptionCurveEaseOut | UIViewAnimationOptionAllowUserInteraction animation^{

            //do sth2...

        }completion:^(BOOL finished){

            //do sth3...

        }];
    }

}