ios - 登录后主页上不显示选项卡栏

Question

我已经实现了 Firebase 登录，并且想要使用功能显示我的主页，我的问题是，当显示主页时，它不会显示选项卡栏，当将选项卡栏显示为初始 VC 时，它显示空白，但是当我在设置中将选项卡栏 Controller 设置为初始 VC，它将显示选项卡栏但绕过登录，如何让我的主页在我的函数中显示选项卡栏？

          @IBAction func LoginButtonTapped(_ sender: Any) {

            // validate feilds still to impliment


                //if all feilds valid do below
                let email = EmailFeild.text!.trimmingCharacters(in: .whitespacesAndNewlines)
                let password = PasswordFeild.text!.trimmingCharacters(in: .whitespacesAndNewlines)

                // sign in user
                Auth.auth().signIn(withEmail: email, password: password) { (result, error) in
                    if error != nil{
                        // sign in error
                        self.ErrorMsg.text = error!.localizedDescription
                        self.ErrorMsg.alpha = 1
                    }else{
                        // go to home screen
                        self.transitionHome()
                    }
                }
        }

        func transitionHome(){   
            let homeViewController =
            storyboard?.instantiateViewController(identifier: Constants.Storyboards.homeViewContrl) as? HomeViewController
            view.window?.rootViewController = homeViewController
            view.window?.makeKeyAndVisible()

我尝试将选项卡栏设置为根 VC 会导致黑屏，但是当我将其设置为初始 VC 并双向登录时，主页 View 会显示选项卡栏

// let tabViewController =
// storyboard?.instantiateViewController(identifier: Constants.Storyboards.homeNav) as? 
        //MainTabBarController 
        //view.window?.rootViewController = tabViewController
        //view.window?.makeKeyAndVisible()
        } 
    }

Answer 1

您只需在其间添加UITabBarController，将其分配给 Storyboard中TabController的Class属性，并将其设置为根状态直接使用UIViewController。引用下面的代码片段:

let tabViewController =
storyboard?.instantiateViewController(withIdentifier: "TabController") as? TabController
view.window?.rootViewController = tabViewController
view.window?.makeKeyAndVisible()

它将按预期工作!!