卸载应用程序然后重新安装并转到主页时，如何纠正错误

Question

如果我先卸载应用程序，然后重新安装应用程序，则它会直接转到应用程序的主页。它不要求用户登录。

我为当前用户编写了authStateListener，以监视在后台删除该应用程序然后重新安装该应用程序的时间，该应用程序将显示登录页面而不是主页。当用户注销时，该应用程序将显示登录页面，否则该应用程序将转到主页。因此，当用户从应用程序注销后再卸载并重新安装该应用程序时，它可以正常工作。

但是我的问题是，如果用户没有注销，然后卸载并重新安装该应用程序，那么它将显示该应用程序的主页而不是登录页面。我该如何解决？

代码是：

class ViewController: UIViewController {
    var db : Firestore!
    var handle:AuthStateDidChangeListenerHandle?
    @IBOutlet weak var email: UITextField!

    @IBOutlet weak var pswd: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()
         db=Firestore.firestore()

        print(currentReachabilityStatus != .notReachable)
        let token = Messaging.messaging().fcmToken
        let authid = Auth.auth().currentUser?.uid
        print("token\(String(describing: token))")
        let docRef = self.db.collection("deyaPayUsers").document(authid!)
        docRef.setData(["FCMToken":token as Any],options:SetOptions.merge())

        self.handle = Auth.auth().addStateDidChangeListener { auth, user in
            if user != nil {
                if (user?.isEmailVerified)!{



                    let myVC = self.storyboard?.instantiateViewController(withIdentifier: "deyaPay") as!deyaPay
                    self.navigationController?.pushViewController(myVC, animated:true)



                }

                else{
                    let alertVC = UIAlertController(title: "Error", message: "Sorry. Your email address has not yet been verified. Do you want us to send another verification email to \(String(describing: self.email.text!)).", preferredStyle: .alert)
                    let alertActionCancel = UIAlertAction(title: "Cancel", style: .default, handler: nil)
                    //alertVC.addAction(alertActionOkay)
                    alertVC.addAction(alertActionCancel)
                    self.present(alertVC, animated: true, completion: nil)
                }
            }
        }

    }


    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    override func viewDidAppear(_ animated: Bool) {
        if currentReachabilityStatus != .notReachable
        {
            print("Connected")
        }
        else
        {
            let controller = UIAlertController(title: "No Internet Detected", message: "This app requires an Internet connection", preferredStyle: .alert)
            let ok = UIAlertAction(title: "OK", style: .default, handler: nil)
            let cancel = UIAlertAction(title: "Cancel", style: .cancel, handler: nil)

            controller.addAction(ok)
            controller.addAction(cancel)

            present(controller, animated: true, completion: nil)
        }

        Auth.auth().addStateDidChangeListener{ auth, user in
            if Auth.auth().currentUser != nil {

                let vc = self.storyboard?.instantiateViewController(withIdentifier: "deyaPay")as!deyaPay
                //self.present(vc, animated: true, completion: nil)
                let navigationController = UINavigationController(rootViewController: vc)
                self.present(navigationController, animated: true, completion: nil)
            } else {
                print("signout")
            }
        }


    }
}