如何更改导航栏的高度 - Swift 3 [英] How can I change height of Navigation Bar - Swift 3

问题描述

我很确定这不是重复的，因为我查看了其他答案，它们都过时了，并且没有提供确切的答案.

I'm pretty sure this is not duplicate because I looked at other answers and they all outdated and do not provide exact answer.

我有导航控制器和几个视图控制器.我想让导航栏高一点，以便它适合我需要的文本大小.我怎样才能做到这一点 ?

I have Navigation Controller and several view controllers. I want to make Navigation Bar a bit taller so it would fit text size that I need. How can I do that ?

我试过了:

UINavigationBar.appearance().frame = CGRect(x: 0.0, y: 0.0, width: 320.0, height: 210.0) 

但是什么都没发生...

but nothing happens...

此外，我无法使用 Xcode 布局按钮向导航栏添加任何约束.

Also, I wasn't able to add any constraints to the Nav Bar using Xcode layout buttons.

希望有人能帮我解决这个问题.提前致谢！

Hope somebody can help me to fix this issue. Thanks in advance!

推荐答案

UPDATE 8/3/20:我在 2016 年发布了这个.很多人表示这不再有效，所以请自担风险使用.我目前不在 iOS 中工作，所以我手边没有更新.祝你好运！

这是一种方法:

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    let height: CGFloat = 50 //whatever height you want to add to the existing height
    let bounds = self.navigationController!.navigationBar.bounds
    self.navigationController?.navigationBar.frame = CGRect(x: 0, y: 0, width: bounds.width, height: bounds.height + height)
    
}

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