UINavigation控制器根视图更改 [英] UINavigation Controller Root View Change

问题描述

我最近遇到了Storyboard的一个小问题。我有一个 UINavigationController 而不是与MainView的关系 RootViewController （这个按钮的所有按钮都通向其余的我的应用）。但是，我尝试更改 RootViewController ，以便我可以启用持久登录而不是UIWebview登录。当我将新的Logon Form ViewController 作为Root时，我的MainView上的按钮就会停止工作。

I recently encountered a small problem with Storyboards. I have a UINavigationController than has a relationship with the MainView RootViewController(This one has all the buttons leading to the rest of my app). However, I tried to change the RootViewController so that I could enable persistent login rather than a UIWebview Login. When I made the new Logon Form ViewController as the Root, the buttons on my MainView simply stop working.

I还将 UINavigationController 设置为初始视图控制器。
关于这里必须做什么的任何想法？

I also have set the UINavigationController as the initial View Controller. Any ideas on what has to be done here?

我知道我可以在故事板中简单地使用登录屏幕并以编程方式调用它，将其设置为在布尔条件（loginDidSucceed）上前进。但是，我很困惑为什么在StoryBoard中会发生这种行为。

I do know that I can simply have the logon screen in the storyboard and call it programmatically, set it to advance on a boolean condition(loginDidSucceed). However, I am confused on why this behavior happens in StoryBoard.

解决方案来自：使用StoryBoard呈现启动/登录ViewController

感谢您的帮助和努力！

推荐答案

我认为这里的主要问题是你的butttons的目标是旧的视图控制器实例;当它超出范围时，它们的目标不再存在。

I think the principal problem here is that the target of your butttons is the old view controller instance; when it goes out of scope their target no longer exists.

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