Flutter Firebase signout

Question

I am trying to return the user to the login page once they sign out from the app but goodness,nothing is working. I am getting exceptions like Bad state: Future already completed or the app returns to the login screen but the previous screen still exists in the stack when I hit back.

Here is my code:

_logOut() async{
    await _auth.signOut().then((value){
      print("***** log out");
      //Navigator.pop(context);
      //Navigator.popUntil(context, ModalRoute.withName("/login"));
      Navigator.pushReplacement(context, new MaterialPageRoute(builder: (context)=>new MyApp()));
    });
   // Navigator.popUntil(context, ModalRoute.withName("/login"));
  }

You should use Navigator.push and Navigator.pop for this. – Bostrot Jun 21 '18 at 09:31 — Bostrot, Jun 21 '18 at 09:31

Javid Noutash · Answer 1 · 2021-02-17T20:44:05.317

4

You should not manually send user to login page after they sign out. Instead you should listen to the user's authentication state change and choose the page that you should show to your user based on their authentication state.

Checkout my answer here for more details: Firebase Login with Flutter using onAuthStateChanged

edited Feb 17 '21 at 20:44

answered Jun 22 '18 at 00:21

Javid Noutash

2,142
17
19

score 2 · Accepted Answer · answered Jun 21 '18 at 18:11

2

After trying out every function from Navigator, this worked finally:

_logOut() async{
    await _auth.signOut().then((_){
      Navigator.of(context).pushNamedAndRemoveUntil("/login", ModalRoute.withName("/home"));
    });
  }

answered Jun 21 '18 at 18:11

spongyboss

8,016
15
48
65

score 0 · Answer 3 · answered Jun 21 '18 at 10:04

0

Try to use following code

Navigator.pushReplacementNamed(context, routeName)

answered Jun 21 '18 at 10:04

Santosh Anand

1,230
8
13

Flutter Firebase signout

3 Answers3