有没有办法取消动画UITableView / UIScrollView setContentOffset：动画：？ [英] Is there a way to cancel an animated UITableView/UIScrollView setContentOffset:animated:?

问题描述

我的应用程序在动画时释放我的 UITableView 时崩溃。只要动画完成，应用程序就可以正常运行。下面是点击 UIButton 的结果，它调用 [tableView setContentOffset：offset animated：YES]; 然后快速点击 backBarButtonItem ，弹出 UITableViewController ：

My app is crashing when my UITableView is released whilst animating. The app functions without issue so long as the animation completes. Below is the result of a tap on the UIButton which calls [tableView setContentOffset:offset animated:YES]; and then a lightning quick tap on the backBarButtonItem which pops the UITableViewController:

#0  0x31ec3ebc in objc_msgSend
#1  0x33690248 in -[UIScrollView(UIScrollViewInternal) _scrollViewAnimationEnded]
#2  0x30defa14 in -[NSObject performSelector:withObject:]
#3  0x33690098 in -[UIAnimator stopAnimation:]
#4  0x3368fb7c in -[UIAnimator(Static) _advance:]
...

我从未见过 _scrollViewAnimationEnded 的崩溃，显然谷歌也没有。我试过从 UITableViewController 的 [tableView setContentOffset：offset animated：NO]; > - （void）viewWillDisappear：（BOOL）动画方法，但这并没有解决问题。

I've never seen a crash on _scrollViewAnimationEnded and apparently neither has Google. I have tried calling [tableView setContentOffset:offset animated:NO]; from the UITableViewController's - (void)viewWillDisappear:(BOOL)animated method, but this did not solve the issue.

任何停止<$的想法动画中的c $ c> UITableView 或 UIScrollView ？

推荐答案

这看起来可能是委托问题。你是否有一个表的委托，如果是，那么当表是dealloc'd？在释放tableView的委托之前尝试nil'ing。

This looks like it might be a delegate issue. Do you have a delegate for the table, and, if so, is it dealloc'd when the table is? Try nil'ing out your tableView's delegate before releasing it.

[表格由CoreAnimation保留，同时它是动画，所以这可能不是问题。]

[The tableView is retained by CoreAnimation while it's animating, so that's probably not the problem.]

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