CODEWITHSUNDEEP
iosswiftfirebasefirebase-authentication
Yardi
Yardi

Reputation: 463

iOS Firebase - how to check if user not logged in

I wan't to check if the user is't logged into my app. If that happend, i wan't to redirect him to notLoggedView or verifyAccuontView.

At this moment code looks like this and if user not created i can't get into notLoggedView.

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

        let user = Auth.auth().currentUser;

        if (user == nil) {
            self.performSegue(withIdentifier: "notLoggedView", sender: self);
        }
    }

This code works same as above (like user exist, but firebase accounts is empty)

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

        if let user = Auth.auth().currentUser {
            // action when account exist
        } else {
            self.performSegue(withIdentifier: "notLoggedView", sender: self);
        }
    }

Upvotes: 4

Views: 4991

Answers (2)

Jawad Ali
Jawad Ali

Reputation: 14397

override func viewDidLoad() {
    super.viewDidLoad()

    Auth.auth()!.addStateDidChangeListener() { auth, user in
        if user != nil {
            self.switchStoryboard()
        }
    }
}

or You can check directly

if Auth.auth().currentUser?.uid != nil {

   //user is logged in

    }else{
     //user is not logged in
    }

for Signup you use 

Auth.auth().createUser(withEmail: emailField.text!, password: passwordField.text!) { user, error in
  if error == nil {
    // 3
    Auth.auth().signIn(withEmail: self.textFieldLoginEmail.text!,
                       password: self.textFieldLoginPassword.text!)
  }
}

Upvotes: 7

Doug Stevenson
Doug Stevenson

Reputation: 317362

If you want to check if there is no user logged in, check currentUser directly.

let user = Auth.auth().currentUser;
if (user == nil) {
    // there is no user signed in when user is nil
}

Also be sure see the documentation for more information.

Upvotes: 2

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