viewDidDisappear没有在UINavigationController上调用 [英] viewDidDisappear not getting called on a UINavigationController

问题描述

我的导航控制器出了问题。如果我将视图控制器添加到堆栈：

I'm having a problem with my navigation controller. If I add a view controller to the stack:

- (void) tui_ToggleListStudy:(id)sender
{
    listVC = [[ListViewController alloc] init];
    [self.navigationController pushViewController:listVC animated:NO];
    [listVC release];
}

我有以下视图控制器的NSLog消息，对于 viewWillDisappear：和 viewDidDisappear - 但只有 viewWillDisappear：被调用。

I have NSLog messages for the view controller beneath, for both viewWillDisappear: and viewDidDisappear - but only viewWillDisappear: is getting called.

不仅如此，视图控制器也不会收到任何其他委托消息：否 viewDidUnload ，或者 dealloc ...

Not only that, but the view controller doesn't receive any other delegate messages either: No viewDidUnload, or dealloc...

我能做些什么吗？

我很难过！有什么想法吗？

I'm stumped! Any thoughts?

谢谢！

推荐答案

我知道答案你在你的问题代码中犯了同样的错误：方法签名是 viewDidDisappear：（动画参数），而不是 viewDidDisappear 。

I know the answer if you made the same typo in your code that you made in your question: the method signature is viewDidDisappear: (with the animated argument), not viewDidDisappear.

不仅如此，还有视图控制器也没有收到任何其他委托消息：没有viewDidUnload，或dealloc ...

Not only that, but the view controller doesn't receive any other delegate messages either: No viewDidUnload, or dealloc...

当你使用视图控制器时不会被释放将另一个控制器推入堆栈。除非内存不足，否则不会调用 viewDidUnload 。

A view controller will not be deallocated when you push another controller onto the stack. And viewDidUnload won't be called unless you run out of memory.

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