UIScrollView：单击可将其滚动到顶部 [英] UIScrollView: single tap scrolls it to top

问题描述

我将UIScrollView的pagingEnabled设置为YES，并以编程方式将其内容滚动到底部：

I have the UIScrollView with pagingEnabled set to YES, and programmatically scroll its content to bottom:

CGPoint contentOffset = scrollView.contentOffset;
contentOffset.y = scrollView.contentSize.height - scrollView.frame.size.height;
[scrollView setContentOffset:contentOffset animated:YES];

它成功滚动，但在此之后，单击它的内容向上滚动以抵消它刚才在它向下滚动之前。只有当我将scrollView的内容滚动到底部然后点击时，才会发生这种情况。当我滚动到任何其他偏移然后点击时，没有发生任何事情。

it scrolls successfully, but after that, on single tap its content scrolls up to offset that it has just before it scrolls down. That happens only when I programmaticaly scroll scrollView's content to bottom and then tap. When I scroll to any other offset and then tap, nothing is happened.

这绝对不是我想要的。应如何修复？

That's definitely not what I'd like to get. How that should be fixed?

提前多多谢谢！

帖木儿。

推荐答案

这似乎是一个错误：

UIScrollView不记得位置

我在iOS上测试了这个4.2（模拟器），问题仍然存在。

I have tested this on iOS 4.2 (Simulator) and the issue remains.

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