DownloadButton 动画问题

[1xiaocainiao]

您好，感谢分享这么好的demo，发现一个问题，当开始进度条动画的时候，快速点击触发tap事件，会报错: Error: this application, or a library it uses, has passed an invalid numeric value (NaN, or not-a-number) to CoreGraphics API and this value is being ignored.Please fix this problem.
然后动画就彻底失效了，原demo也有这个问题，不知道怎么回事，望解答

[liwenDeng]

@1xiaocainiao 我也遇到这个问题，问题出在 -(void)tapped:(UITapGestureRecognizer *)tapped 中，需要将 originframe 的赋值顺序改为

 -(void)tapped:(UITapGestureRecognizer *)tapped {
  //originframe = self.frame;
  if (animating == YES) {
        return;
    }
   originframe = self.frame;
  ....
}