如何在 Swift 中设置右侧 UIBarButtonItem 的色调颜色? [英] how can I set the tint color of right UIBarButtonItem in Swift?

问题描述

我正在使用 viewDidLoad 中的以下代码向我的导航控制器添加一个右栏按钮:

I'm adding a right bar button to my navigation controller with the following code in viewDidLoad:

var b = UIBarButtonItem(
        image: UIImage(named: "settings"),
        style: .plain,
        target: self,
        action: #selector(sayHello(sender:))
    )

    self.navigationItem.rightBarButtonItem = b

我的 settings png 文件是白色的，但是当我运行应用程序时，我看到它是默认的 blue 颜色.不管怎样，我想把它改成红色.我该怎么做?

my settings png file is white, but when I run the app, I see it in default blue color. Anyway, I want to change it to red. How can I do it?

我试过了:

let navigationBarAppearnce = UINavigationBar.appearance()
navigationBarAppearnce.tintColor = UIColor.red

但是没有用.这样做的正确方法是什么?

but it didn't work. What's the proper way of doing that?

推荐答案

您是否尝试过:

let navigationController = UINavigationController() //not how you should actually get it, but just for purpose of example
navigationController.navigationBar.tintColor = UIColor.red

我实际上使用以下内容:

I actually use the following:

navigationController.navigationBar.barTintColor = UIColor.red

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