hidesBottomBarWhenPushed但弹出时 [英] hidesBottomBarWhenPushed but when popped

问题描述

我有一个问题，似乎很简单。
我的应用程序有一个视图层次结构，包含一个UITabBarController包含UINavigationControllers。当我从根导航到第二级
我设置hidesBottomBarWhenPushed为true，以便标签栏隐藏

在我的firstLevelController：

  [secondLevelController setHidesBottomBarWhenPushed：YES]; 
 
 [self.navigationController pushViewController：secondLevelController animated：YES]; 
 

之后，当我推到第三级时，我再次通过在secondLevelController ：

  [self setHidesBottomBarWhenPushed：NO]; 
 
 [thirdLevelController setHidesBottomBarWhenPushed：NO]; 
 
 [self.navigationController pushViewController：thirdLevelController animated：YES]; 
  

（我知道，我不喜欢 [self setHidesBottomBarWhenPushed：NO ] ，但它没有工作否则...）

所以，这里是问题：

<$>

解决方案

p $ p> [self setHidesBottomBarWhenPushed：NO];
[thirdLevelController setHidesBottomBarWhenPushed：NO];
[self.navigationController pushViewController：thirdLevelController animated：YES];
[self setHidesBottomBarWhenPushed：YES];


thirdlevelController显示tabbar，而secondLevelController在弹出thirdLevelController时不显示tabbar。

I've a problem with something that seems to be very simple. My app has a view hierarchy consisting in a UITabBarController containing UINavigationControllers. When I navigate from the root to the second level I set the hidesBottomBarWhenPushed on true so that the tab bar is hidden

On my firstLevelController:

[secondLevelController setHidesBottomBarWhenPushed:YES];

[self.navigationController pushViewController:secondLevelController animated:YES];

After that when I push to the third level, I bring the tab bar again by doing in the secondLevelController:

[self setHidesBottomBarWhenPushed:NO];

[thirdLevelController setHidesBottomBarWhenPushed:NO];

[self.navigationController pushViewController:thirdLevelController animated:YES];

(I know, I didn't like the [self setHidesBottomBarWhenPushed:NO] either, but it didn´t work otherwise...)

So, here is the problem: when I push the back button in the third level and the second view appears, I need to hide the tabbar again but I couldn´t find the way of doing this.

Any help is appreciated

解决方案

This is what works for me.

[self setHidesBottomBarWhenPushed:NO];
[thirdLevelController setHidesBottomBarWhenPushed:NO];
[self.navigationController pushViewController:thirdLevelController animated:YES];
[self setHidesBottomBarWhenPushed:YES];

The thirdlevelController shows the tabbar and secondLevelController does not show the tabbar when you pop the thirdLevelController.

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