概述

我有不同的故事板叫做Main,tabBar,home,map等.在tabBar的故事栏中,我使用了SWRevealViewController视图并作为初始视图启动. 在主要的Storyboard中,只有两个用于登录和注册控制器. 这是tabBar storyBoard 的截图我的问题是当用户注销并返回时它自动进入主屏幕而不是登录屏幕[此问题是由于SWRevealViewController是初

@H_801_18@ 我有不同的故事板叫做Main,tabBar,home,map等.在tabBar的故事栏中,我使用了SWRevealViewController视图并作为初始视图启动.
在主要的Storyboard中,只有两个用于登录和注册控制器.

这是tabBar storyBoard

的截图

我的问题是当用户注销并返回时它自动进入主屏幕而不是登录屏幕[此问题是由于SWRevealViewController是初始视图控制器].

我试过这里的代码：在符号视图控制器中

在viewDidAppear中检查firebase中是否有可用的用户

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

    if API.User.CURRENT_USER != nil {
        // segue to the Tab Bar Controller
        self.performSegue(withIdentifier: "signIn@R_823_10586@bBar",sender: nil)

    }
}

登录动作：

@IBACtion func SignInButton(_ sender: Any) {

    view.endEdiTing(true)

    guard
        let email = emailTextField.text,!email.isEmpty,let password = passwordTextField.text,!password.isEmpty
        else {

            self.showErrorAlert(message: "Username or email or passowrd should not be empty")
            return
    }
    // show the progress to the user
    ProgressHUD.show("StarTing sign-in...",interaction: falsE)

    // use the signIn class method of the Authservice class
    Authservice.signIn(email: emailTextField.text!,password: passwordTextField.text!,onsuccess: {
        // on success segue to the Tab Bar Controller
        API.User.observeCurrentUser { user in

            guard let currentUser = Auth.auth().currentUser else {
                return
            }

            Prefsmanager.sharedinstance.UIDfirebase = currentUser.uid
            Prefsmanager.sharedinstance.username  = user.username!
            Prefsmanager.sharedinstance.userEmail = user.email!
            Prefsmanager.sharedinstance.imageURL  = user.profileImageURL!

            ProgressHUD.showsuccess("Sucessfully signed in.")
            self.performSegue(withIdentifier: "signIn@R_823_10586@bBar",sender: nil)

        }

    },onError: { errorString in
        ProgressHUD.dismiss()
        self.showErrorAlert(message: errorString ?? "Server error")
    })

}

}

SWRevealViewController菜单表我列出了菜单,如家,预订,个人资料,注销：

func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell
{


    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as! MenuTableViewCell

    cell.menuName.text = menuName[indexPath.row]
    cell.menuIcon.image = UIImage(named: menuImage[indexPath.row])


    return cell

}

func tableView(_ tableView: UITableView,didSELEctRowAt indexPath: IndexPath) {

  //        tableView.deSELEctRow(at: indexPath,animated: truE)

    let row = indexPath.row

    if row == 0{

        let storyboard = UIStoryboard(name: "Home",bundle: nil)

        let obj = storyboard.instantiateViewController(withIdentifier: "HomeViewController") as! HomeViewController
        let navController = UINavigationController(rootViewController: obj)
        navController.setViewControllers([obj],animated:truE)
        navController.tabBarController?.tabBar.isHidden = false
        self.revealViewController().setFront(navController,animated: truE)
        self.revealViewController().setFrontViewPosition(FrontViewPosition.left,animated: truE)

    } else if row == 1{

        let storyboard = UIStoryboard(name: "Bookings",bundle: nil)
        let obj = storyboard.instantiateViewController(withIdentifier: "BookingsViewController") as! BookingsViewController
        let navController = UINavigationController(rootViewController: obj)
        navController.setViewControllers([obj],animated:truE)
        self.revealViewController().setFront(navController,animated: truE)


    } else if row == 2 {

        let storyboard = UIStoryboard(name: "Profile",bundle: nil)
        let obj = storyboard.instantiateViewController(withIdentifier: "profileViewController") as! profileViewController
        let navController = UINavigationController(rootViewController: obj)
        navController.setViewControllers([obj],animated: truE)

    } else if row == 3 {
        print(indexPath)
        // Log out user from Firebase
        Authservice.signOut(onsuccess: {
            // Present the Sign In VC
    //                Prefsmanager.sharedinstance.logoutprefences()
            let storyboard = UIStoryboard(name: "Main",bundle: nil)
            let signInVC = storyboard.instantiateViewController(withIdentifier: "signInViewController")
                        self.present(signInVC,animated: truE)

  //                self.navigationController?.pushViewController(signInVC,animated: truE)

        }) { (errormessagE) in

            ProgressHUD.showError(errormessagE)

        }



    }


}

在家庭视图控制器中,检查用户是否可用：

override func viewDidAppear(_ animated: Bool) {

    if API.User.CURRENT_USER != nil {
        // segue to the Tab Bar Controller
        self.performSegue(withIdentifier: "signIn@R_823_10586@bBar",sender: nil)

    }

    super.viewDidAppear(true)
    self.tabBarController?.tabBar.isHidden = false

}

解决方法

当您从应用程序注销时,您必须将signIn视图控制器设置为这样的根视图控制器.

Authservice.signOut(onsuccess: {
       // Present the Sign In VC
       let storyboard = UIStoryboard(name: "Main",bundle: nil)
       let signInVC = storyboard.instantiateViewController(withIdentifier: "signInViewController") as! signInViewController
       let nav = UINavigationController(rootViewController:signInVC)
       let application = UIApplication.shared.delegate as! AppDelegate
       application.window!.rootViewController = nav

}) { (errormessagE) in
        ProgressHUD.showError(errormessagE)
 }

现在在AppDelegate.swift文件中,在application(_：didFinishLaunchingWithOptions :)方法中,你必须检查用户是否为nil.

if API.User.CURRENT_USER != nil {
       let mainNav = self.window?.rootViewController as! UINavigationController
       let storyBoard = UIStoryboard(name: "tabBar",bundle:nil)
       let sWRevealViewController = storyBoard.instantiateViewController(withIdentifier: "SWRevealViewController") as! SWRevealViewController
       mainNav.pushViewController(sWRevealViewController,animated: falsE)
 }

注意：请在标识符名称和视图控制器名称中添加故事板ID和视图控制器名称.