移动回另一个视图时，标签栏控制器消失

3 回答

• 0

  经过几天试图找出答案后，我已经解决了我的问题 . 您需要将其添加到任何视图控制器 .

  @IBAction func unwindToViewController (sender: UIStoryboardSegue){
  
      }
  

  然后，您可以将条形按钮项目中的segue添加到视图控制器上的退出图标 .

  You can view an image of the VC scene here.

  回复于 2024-05-03T02:02:24+08:00
• 0

  首先创建 UITabBarController 的子类，然后将属性添加到 AppDelegate

  var navController: UINavigationController?
  var tabController: MyTabController?
  

  如果您想在应用启动时显示标签栏控制器，请将这些代码放在 AppDelegate 中 didFinishLaunchingWithOptions

  self.window = UIWindow(frame: UIScreen.main.bounds)
   let myStoryboard = UIStoryboard(name: "Main", bundle: nil) as UIStoryboard
   self.tabController = myStoryboard.instantiateViewController(withIdentifier: "MyTabController") as? MyTabController
  //self.navController = UINavigationController(rootViewController: self.tabController!)
  //self.window?.rootViewController = self.navController
   self.window?.rootViewController = self.tabController
   self.window?.makeKeyAndVisible()
   return true
  

  如果要在登录后跳转标签栏或其他内容，请将属性添加到该控制器

  var appDelegate: AppDelegate!
  

  在 viewDidLoad

  appDelegate = UIApplication.shared.delegate as? AppDelegate
  

  方法应该如此

  func logIntoApp() {
  
      appDelegate.tabController = self.storyboard?.instantiateViewController(withIdentifier: "MyTabController") as? MyTabController
      appDelegate.window?.rootViewController = appDelegate.tabController
   }
  

  然后在选项卡视图控制器中，创建 AppDelegate 的属性并按上述方式分配委托 .

  方法应该是这样的：

  @IBAction func showWithTab(_sender: AnyObject) {
  
        let DefaultVC = self.storyboard?.instantiateViewController(withIdentifier: "DefaultViewController") as! DefaultViewController
        self.navigationController?.pushViewController(DefaultVC, animated: true)
  }
  
  @IBAction func showWithoutTab(_sender: AnyObject) {
  
        let DefaultVC = self.storyboard?.instantiateViewController(withIdentifier: "DefaultViewController") as! DefaultViewController
  
      // You can create your own animation
        UIView.transition(from: (appDelegate.tabController?.view)!, to: (appDelegate.navController?.view)!, duration: 0.3, options: UIViewAnimationOptions.curveEaseIn) { (finished) in
  
        self.appDelegate.window?.rootViewController = self.appDelegate.navController
      }
  
      // OR you can use like this way
        UIView.transition(from: self.view, to: DefaultVC.view, duration: 0.3, options: UIViewAnimationOptions.curveEaseIn) { (finished) in
  
        self.appDelegate.window?.rootViewController = self.appDelegate.navController
      }
  }
  

  回复于 2024-05-03T02:02:24+08:00
• 0

  为什么不使用简单的Tab Bar？像这样的东西：

  

  在VC1中：

  override func viewWillDisappear(_ animated: Bool) {
      super.viewWillDisappear(animated)
  
      myTab.removeFromSuperview()
  }
  

  回复于 2024-05-03T02:02:24+08:00