向导航控制器添加按钮 [英] Adding buttons to navigation controllers

问题描述

我正在 swift 3 xcode 8 项目中工作，但我遇到了一个问题.

I am working in a swift 3 xcode 8 project, and I have an issue.

我有一些视图控制器.在第一个中，我插入了一个导航控制器，当我在另一个视图控制器中时，它给了我后退"按钮.所以我可以继续回到第一个视图控制器.

I have some view controllers. In the first one I've inserted a navigation controller, which gives me the "back" button when I am in another view controller. So I can go on and back to the first viewcontroller.

问题是，让我们说，当我在第三个视图控制器中时，我想插入一个按钮，但只出现在导航控制器的这个视图控制器中.

The thing is, lets say, when I am in the third view controller I'd like to insert a button, but appearing just in this viewcontroller in the navigation controller.

我已经尝试添加一个条形按钮项，但它不起作用，因为导航控制器只出现在故事​​板中，在我的第一个视图控制器中.

I've tried adding a bar button item but it doesnt work because the navigation controller only appears, in the storyboard, in my first viewcontroller.

那么如何在另一个 viewcontrollerS 中向导航控制器添加按钮?

So how can I add buttons to the navigation controller, in another viewcontrollerS?

推荐答案

那么如何在另一个 viewcontrollerS 中向导航控制器添加按钮

So how can I add buttons to the navigation controller, in another viewcontrollerS

将导航项拖到您的第三个视图控制器中.现在您可以向其中添加栏按钮项目.

Drag a Navigation Item into your third view controller. Now you can add bar button items to that.

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