ios - 返回上一个 VC 后导航栏会发生变化

Question

我的导航栏样式存在一些问题。假设我有两个 View Controller 。

VC 1 有一个带有白色文本的橙色条，我的设置如下:

   func stylingStuffs(){
    self.navigationController?.navigationBar.barTintColor = UIColor(red: 0.94, green: 0.38, blue: 0.24, alpha: 1)
    self.navigationController?.navigationBar.backgroundColor = UIColor(red: 0.94, green: 0.38, blue: 0.24, alpha: 1)
    self.navigationController?.navigationBar.tintColor = UIColor.white
    self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName : UIColor.white]
    self.navigationController?.navigationBar.isTranslucent = false
    UIApplication.shared.statusBarStyle = .lightContent
}

VC 2 有一个透明的导航栏，其代码是:

func stylingStuffs(){
    navigationController?.setNavigationBarHidden(false, animated: true)
    navigationController?.navigationBar.setBackgroundImage(UIImage(), for: UIBarMetrics.default)
    self.navigationController?.navigationBar.barTintColor = UIColor(red: 0.94, green: 0.38, blue: 0.24, alpha: 0)
    self.navigationController?.navigationBar.backgroundColor = UIColor(red: 0.94, green: 0.38, blue: 0.24, alpha: 0)
    navigationController?.navigationBar.shadowImage = UIImage()
    navigationController?.navigationBar.isTranslucent = true
    navigationController?.navigationBar.tintColor = UIColor.white
    self.navigationController?.navigationBar.barStyle = .default
    UIApplication.shared.statusBarStyle = .lightContent
}

当我从 VC1 导航到 VC2 时，一切正常，当我从 VC2 导航到 VC1 时，VC1 的导航栏以及状态栏现在都是白色/透明的。

我该如何解决这个问题，或者我想在返回 VC1 后重置样式？

Answer 1

第一个 View VC 1 Controller viewDidAppear调用stylingStuffs()

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated: animated)

    stylingStuffs()
}

@rmaddy评论

You are confused because there is actually only one navigation bar. It is part of the one navigation controller that both view controllers are in

所以需要重置VC 1的导航栏样式