用的UIView和动画完成阻止用户交互 [英] User interaction with uiview and animation completion blocks

问题描述

我有以下的code：

[UIView animateWithDuration:2.0 delay:0.0 options:UIViewAnimationOptionAllowUserInteraction
     animations:^{
         imageView.bounds = endBounds;
     }
     completion:^(BOOL finished) {
         [UIView animateWithDuration:2.0 delay:0.5 options:UIViewAnimationOptionAllowUserInteraction
              animations:^{
                  imageView.bounds = startBounds;
              }
              completion:^(BOOL finished) {
                      [imageView removeFromSuperview];
              }];
     }];

此外我有：​​

[imageView setUserInteractionEnabled:YES];

和一个水龙头手势识别组将处理用户敲击ImageView的。虽然第一动画正在发生的事情，对手势识别的火灾，因为我期望的那样。但是，如果我尝试从完成块链式动画过程中自来水ImageView的，即使我已经设置了相应的选项没有任何反应。

and a tap gesture recognizer set that will handle the user tapping on imageView. While the first animation is happening, the gesture recognizer fires as I would expect. But if I try and tap imageView during the chained animation from the completion block, nothing happens even though I have set the appropriate option.

任何人有什么想法？我一派，并不能找到答案。

Anyone have any thoughts? I've googled and can't find an answer.

推荐答案

我想出了一个解决方案：

I came up with a solution:

我用同样的边界/中心点作为形象包装在一个UIView的UIImageView的（我UIView的子类）。然后，我附上手势识别到包装，而不是图像。因为包装的边界矩形/中心点从不为动画的持续时间的变化，它总是可以作为一种姿态的目标。

I wrap the UIImageView in a UIView (I subclass UIView) with the same bounds/center point as the image. Then I attach the gesture recognizer to the wrapper, instead of the image. Because the wrapper's bounds rectangle/center point never change for the duration of the animation, it's always available as the target of a gesture.

这工作得很好。

-j

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