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
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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