Question

我有2个视图控制器。查看控制器A **和查看控制器B

我想实现一个非常简单的事情。在按下 B 时，在 View Controller A 上设置左右导航栏按钮，并在 View Controller B 上更改标题和左导航栏按钮。

我可以根据需要设计 View Controller A ，但是我不能更改 push View Controller B 上的标题。

这是我实现的代码；

在viewdid中的A：

    title = "Satışlarını Hızlandır!"
    let leftBarButtonItem = UIBarButtonItem(image: UIImage(named: "boostCloseIcon"), style: .plain, target: self, action: #selector(closeButtonTapped))
    leftBarButtonItem.tintColor = .black
    navigationItem.leftBarButtonItem = leftBarButtonItem

    let rightBarButtonItem = UIBarButtonItem(image: UIImage(named: "infoIcon"), style: .plain, target: self, action: #selector(infoButtonTapped))
    rightBarButtonItem.tintColor = .black
    navigationItem.rightBarButtonItem = rightBarButtonItem

    self.navigationController?.navigationBar.barTintColor = .white
    self.navigationController?.navigationBar.isTranslucent = false
    self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: UIBarMetrics.default)
    self.navigationController?.navigationBar.shadowImage = UIImage()

B的viewDidLoad中的

：

    title = "Confirmation"
    let backBarButtonItem = UIBarButtonItem(image: UIImage(named: "infoIcon"), style: .plain, target: self, action: #selector(backButtonTapped))
    backBarButtonItem.tintColor = .black
    navigationItem.setLeftBarButton(backBarButtonItem, animated: false)

iOS 11+导航栏的按钮和标题在推送视图控制器上未更改？

0 个答案: