设置 UINavigationbar 的标题不起作用 [英] Setting title of UINavigationbar not working

问题描述

我浏览了一些在线教程，但没有任何效果.

I've looked through a few online tutorials, but nothing is working.

这是我的 viewController 的代码:

That's the code of my viewController:

import UIKit

class ViewController: UINavigationController {

    let textView = UITextView()

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        // tried this
        self.navigationItem.title = "AAA"

        // and this
        self.title = "AAA"

        // and finally this
        self.parent?.title = "AAA"
    }
}

我不明白为什么这不起作用(我以前没有使用过导航栏)

I don't understand why this isn't working (I haven't used a navigation bar before)

我没有更改 main.storyboard 中的任何内容.

I didn't change anything in the main.storyboard.

感谢您的回答.

推荐答案

首先在你的故事板中选择你的视图控制器，然后

First of all in your storyboard select your view controller and then

编辑器 -> 嵌入 -> 导航控制器

Editor -> Embed In -> Navigation Controller

然后在你的 ViewController 类中添加

then in your ViewController class add

self.title = "AAA"

在您的 viewDidLoad 方法中，您的代码将如下所示:

in your viewDidLoad method and your code will look like:

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        self.title = "AAA"
    }
}

您需要将 UINavigationController 替换为 UIViewController

这篇关于设置 UINavigationbar 的标题不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！