我正在try 将导航添加到我的iOS应用程序中.我正在模拟iPhone 15,在Xcode 15上运行iOS 17,在Swift 5.8上运行.
I have seen in several tutorials that when Navigation Controller is added to storyboard via Editor -> Embed in -> Navigation Controller a Navigation Bar should be immediately visible on the preview, like this:
But instead I cannot see anything:
我没有更改导航栏的任何属性(顺便说一句,它实际上出现在视图层次 struct 中). 我做错什么了?