如何在 Swift 中更改 backBarButtonItem 颜色? [英] How can I change the backBarButtonItem colour in Swift?

问题描述

我正在尝试将默认的 backBarButtonItem 颜色更改为白色，

我的代码如下

self.navigationItem.backBarButtonItem?.tintColor = UIColor.whiteColor()

但这对我不起作用，有什么想法吗?

解决方案

如果你想改变 backBarButton 这样做:

override func viewDidLoad() {super.viewDidLoad()让 newBackButton = UIBarButtonItem(title: "B",样式:UIBarButtonItem.Style.plain，目标:自我，动作:backAction")navigationController?.navigationBar.topItem?.backBarButtonItem = newBackButtonnewBackButton.tintColor = .red//加载视图后进行任何其他设置.}func backAction() ->空白 {self.navigationController?.popViewController(动画:真)}

I am trying to change the default backBarButtonItem colour to white colour,

my codes look like below

self.navigationItem.backBarButtonItem?.tintColor = UIColor.whiteColor()

But It is not working for me, any ideas?

解决方案

If you want to change the backBarButton do this :

override func viewDidLoad() {

    super.viewDidLoad()

    let newBackButton = UIBarButtonItem(title: "B",
    style: UIBarButtonItem.Style.plain, target: self, action: "backAction")
        navigationController?.navigationBar.topItem?.backBarButtonItem = newBackButton
    newBackButton.tintColor = .red
    // Do any additional setup after loading the view.
}

func backAction() -> Void {
    self.navigationController?.popViewController(animated: true)
}

image of code

See the result:

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