註銷從應用程序中的應用程序設置

Question

我想使用設置包從應用程序註銷。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 

//enable_logout key for logout switch identifire in setting budle plist. 
     let userLogout = UserDefaults.standard.bool(forKey: "enabled_logout") 
     print(userLogout) 

      let userLogin = UserDefaults.standard.bool(forKey: "isUserLogin") 
      if userLogin { 

       let homeController = HomeController() 
       let homeNav = UINavigationController.init(rootViewController: homeController) 


       let aboutController = AboutController() 
       let aboutNav = UINavigationController.init(rootViewController: aboutController) 

       let userBaseController = UserBaseInfoController() 
       let userBaseNav = UINavigationController.init(rootViewController: userBaseController) 

       tabbarController.viewControllers =[homeNav,userBaseNav,aboutNav] 

       self.window?.rootViewController = tabbarController 

      } 
      else { 

       let login = LoginController() 
       self.window?.rootViewController = login 


      } 



     return true 
    } 

我加入的appDelegate這個代碼，我想，當用戶啓用在設置註銷開關，然後返回到應用程序顯示登錄視圖，但是當使開關和迴應用的appDelegate沒有告訴我的鑰匙不變。

還有就是我設置的觀點：

Answer 1

我解決這個問題，而不是檢查enable_logout鍵didFinishLaunchingWithOptions方法，我在applicationWillEnterForeground方法檢查。

這裏是我的代碼：

func applicationWillEnterForeground(_ application: UIApplication) { 

     let userLogout = UserDefaults.standard.bool(forKey: "enable_logout") 
     print(userLogout) 


     if !userLogout { 

      let homeController = HomeController() 
      let homeNav = UINavigationController.init(rootViewController: homeController) 


      let aboutController = AboutController() 
      let aboutNav = UINavigationController.init(rootViewController: aboutController) 

      let userBaseController = UserBaseInfoController() 
      let userBaseNav = UINavigationController.init(rootViewController: userBaseController) 

      tabbarController.viewControllers = [homeNav,userBaseNav,aboutNav] 

      self.window?.rootViewController = tabbarController 

     } 
     else { 

      let login = LoginController() 
      self.window?.rootViewController = login 

     } 

    }