导航控制器标题未显示 [英] Navigation Controller Header is not showing

问题描述

所以，这里我基本上有这个布局

So, here I basically have this layout

但是当我成功构建时，我看不到导航控制器的标题.

but when I build successfully I am not able to see the title of the navigation controller.

我能做什么?

推荐答案

这是你想要效仿的:

• 将UITabBarController 设置为是初始视图控制器
• 为每个场景添加一个关系，不管它是不是UINavigationController
• 如果一个场景是一个 UINavigationController，它的行为就像任何根导航控制器一样，有自己的视图堆栈、后退按钮等等.

• Set the UITabBarController as is Initial View Controller
• add a relationship to each scene, whether it is a UINavigationController or not
• If a scene is a UINavigationController, it will behave like any root navigation controller, with its own view stack, back button, an so forth.

运行上面的应用程序，然后点击项目 2 将显示此导航控制器:

Running the app above, then tapping on Item 2 will present this navigation controller:

如果您无法在启动时将 UITabBarController 设为初始视图控制器，您可以稍后使用此技术使其成为 root:

If you cannot make the UITabBarController the initial View Controller at launch, you can make it become root later on using this technique:

let newViewController = self.storyboard?.instantiateViewControllerWithIdentifier("id")
                        as? UIViewController
self.view.window?.rootViewController = newViewController

这将展示上面的架构，尽管没有动画(也没有任何导航方式).非常适合入职或登录屏幕.

This will present the architecture above, albeit without animation (nor any way to navigate back). Perfect for onboarding or login screens.

在 Xcode 7+、iOS 9+

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