隐藏导航栏，但是当我转换到上一个视图（弹出）时，它会暂时显示旧的后退按钮。为什么？ [英] Hide navigation bar, but when I transition to the previous view (popped) it shows the old back button temporarily. Why?

问题描述

我在导航控制器中有视图控制器（root： RootViewController ，第二个： ReadingViewController ），但在第二个视图控制器我想禁用 UIToolBar 的导航栏（因为我不需要标题，想要更多按钮，比如在iBooks或Facebook应用程序中）。问题是，当我在第二个视图中隐藏导航栏时，当我弹出视图控制器（返回）时，它会再次随机出现一秒钟。

I have view controllers in a navigation controller (root: RootViewController, second: ReadingViewController), but in the second view controller I want to disable the navigation bar for a UIToolBar (as I don't need the title and want more buttons, like in iBooks or the Facebook app). Problem is, when I hide the navigation bar in the second view, it appears randomly for a second again when I pop the view controller (go back).

当我弹出时视图控制器后退按钮出现一秒钟：

When I pop the view controller the back button appears for a second:

在第二个视图控制器中，我隐藏中的导航栏viewWillAppear：：

In the second view controller I hide the nav bar in viewWillAppear::

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    [self.navigationController setNavigationBarHidden:YES animated:YES];
}

同样在第二个视图控制器中，我恢复<$ c中的导航栏$ c> viewWillDisappear：：

Also in the second view controller, I restore the nav bar in viewWillDisappear::

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];

    // ... other stuff

    [self.navigationController setNavigationBarHidden:NO animated:YES];
}

我想知道如何解决这个问题，以便视图控制器无缝过渡。

I'm wondering how I combat this issue so that the view controllers transition seamlessly.

推荐答案

嘿，为什么不使用导航栏作为 UIToolbar 。

Hey why don't you use navigation bar as a UIToolbar.

您可以将导航控制器模仿到 UITootlbar 通过向其添加按钮。

Instead Of hiding UINavigation you can mimic navigation controller to UITootlbar by adding buttons to it.

隐藏取消隐藏 UINavigation 将会很复杂。

hiding unhiding UINavigation would be complex.

我上传了Dropbox 链接。

I am Uploaded the dropbox link.

这篇关于隐藏导航栏，但是当我转换到上一个视图（弹出）时，它会暂时显示旧的后退按钮。为什么？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！