Question

我在Xcode模拟器中运行应用程序并使用用户和密码登录然后我退出，logOutOutlet和bookingsOutlet被隐藏，logInOutlet按钮显示。到目前为止，它的行为符合预期。
- 2

接下来，从Xcode停止应用程序并再次运行它，但现在它的行为就好像我已经登录：显示logOutOutlet，bookingsOutlet，隐藏logInOutlet。当应用程序被暂停，终止或删除时，它的行为相同。（即，在Xcode或cmd + H * 2中停止并向上滑动。）现在，假设我在下一个ViewController中有一个活动的logIn会话，我尝试从FireBase实时数据库中检索数据，但是我收到了这个错误。 Error Domain=com.firebase Code=1 "Permission Denied" UserInfo={NSLocalizedDescription=Permission Denied}. Why can I not log out completely?

@IBAction func logOut(sender: AnyObject) {
    // if the current user is logged in, try to log out and if logout is successful:
    // hide: logOut button & bookings button
    // show: logIn button
  if FIRAuth.auth() != nil {

        do {
            try FIRAuth.auth()?.signOut()

            print("the user is logged out")
        } catch let error as NSError {
            print(error.localizedDescription)
             print("the current user id is \(FIRAuth.auth()?.currentUser?.uid)")
        }

        self.logInOutlet.hidden = false
        self.logOutOutlet.hidden = true
        self.bookingsOutlet.hidden = true
    } // end of if.. FIRAuth.auth()
}

override func viewDidLoad() {
    super.viewDidLoad()

    // if the user is logged out
    // hide: logOut button & bookings button
    // show: logIn button
     // if FIRAuth.auth()?.currentUser?.uid == nil {
    if FIRAuth.auth() == nil {

        self.logInOutlet.hidden = false
        self.logOutOutlet.hidden = true
        self.bookingsOutlet.hidden = true

// it still prints the user id, why?
 if let userNOTLogged = FIRAuth.auth()?.currentUser?.uid {
            print("User should NOT be logged \(userNOTLogged)")

        }



        // if the user is logged in
        // hide: logIn Button
        // show: logOut button & bookings button
    } else if

   FIRAuth.auth() != nil {
        self.logInOutlet.hidden = true
        self.logOutOutlet.hidden = false
        self.bookingsOutlet.hidden = false
    }
}



   // Log in code


    FIRAuth.auth()?.signInWithEmail(email.text!, password: password.text!, completion: { (authData, error) in

        let customError = error?.localizedDescription
        if error != nil {
            print(customError)

            // display an alert with the error
            self.displayAlert()

        } else {
            print("The user has been logged in")


    //if signIn was successful, instantiate the view controller with identifier SWrevelViewidentifier
         let toMenuOptions = self.storyboard?.instantiateViewControllerWithIdentifier("SWrevelViewidentifier")
            self.presentViewController(toMenuOptions!, animated: true, completion: nil)

        }
    })
 }

Answer 1

我有同样的问题。由于重新启动时会发生这种情况，请尝试将此代码放入app.delegate。

FIRAuth.auth()?.addAuthStateDidChangeListener { auth, user in
  if let user = user {
    // User is signed in.
  } else {
    // No user is signed in.
  }
}

Firebase用户无法注销 - Swift

1 个答案: