objective-c - iOS程序在ios8的系统下页面跳转后闪退，ios9的系统下不会闪退

Question

1、app在ios8的机子上真机调试，在页面跳转后，在返回到上级界面，再次点击屏幕，就出现闪退.
开启僵尸对象，打印信息如下：* -[_UIWebViewScrollView _systemGestureStateChanged:]: message sent to deallocated instance 0x3183a00
2、app在ios9 的机子上真机调试一切正常。

Answer 1

Owner, I have also encountered this problem, but it has not been solved yet. Have you solved it now? Can you communicate with me?

Answer 2

Be extra careful when using delegate and datasource on iOS8.

Some delegate and datasource on iOS8 are declared using assign. If not released in time, it is easy to cause a crash.

It is recommended that wherever delegate is used, its display location should be set to nil in dealloc.

as

- (void)dealloc
{
    _tableView.delegate = nil;
    _tableView.datasource = nil;
    _scrollView.delegate = nil;
    _gesture.delegate = nil;
}

Answer 3

• (void)dealloc
  {

  _webView.delegate = nil;

  }

Answer 4

viewWillDisappear 里写一句 [self.webView stopLoading];

Answer 5

The problem was found because I referenced a third-party buckle and used the swizzle method to cause a memory leak.

Answer 6

Which third party does the poster use? Do you mind disclosing it? I have the same problem here...

Answer 7

After searching for 6 hours, I finally found which library caused it. . . UIScrollView+HeaderScaleImage! ! ! ! !

Answer 8

Check whether the UIScrollView category in your project has overridden the dealloc method

Answer 9

Using this UIScrollView+HeaderScaleImage, how to solve it