如何更改Swift中的backBarButtonItem颜色？

Question

我正在尝试将默认的backBarButtonItem颜色更改为白色，

我的代码如下所示

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

但它不适合我，任何想法？

Answer 1

试试这个：

self.navigationController?.navigationBar.tintColor = UIColor.whiteColor()

Answer 2

尝试一下：

self.navigationController?.navigationItem.backBarButtonItem?.tintColor = UIColor.red

Answer 3

如果要更改backBarButton，请执行以下操作：

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

查看结果：