从App Delegate中的Storyboard获取初始视图控制器 [英] Getting Initial View Controller from Storyboard inside the App Delegate

问题描述

我正在尝试访问我的故事板的初始viewcontroller。它是一个导航控制器，通过seque连接到第二个视图控制器。所以在我的应用程序完成启动后，我想直接显示通过segue连接的viewController。我尝试使用这样的代码，但它不起作用...

I am trying to access the initial viewcontroller of my storyboard. It is a navigation controller which is wired up to a second viewcontroller via a seque. So after my application did finish launching I want to directly show the viewController that is connected through the segue. I tried it out with code like this but it doesn't work ...

UINavigationController *navController = (UINavigationController*)self.window.rootViewController;
[navController.topViewController performSegueWithIdentifier:@"showLoginScreen" sender:self];

我做错了什么？

4年后 ：

4 years later:

如果我在4年后再次查看我的问题，我真的不知道是什么我真正的问题是。

If I look at my question again after 4 years, I honestly have no idea what my real problem was.

推荐答案

请确保刻度标记为

是初始ViewController

选项 storyBoard中的UINavigationController

UIStoryboard* storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UINavigationController * myStoryBoardInitialViewController = [storyboard instantiateInitialViewController];

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