Firebase Android onAuthStateChanged called twice

Question

I\'ve start working with new Firebase SDK.

When I\'m doing user login, I\'m onAuthStateChanged method is being called twice with same state (etc. user sign in).

Answer 1

  try{
       FirebaseAuth.getInstance().signOut();
       FirebaseInstanceId.getInstance().deleteInstanceId();
   }catch (Exception ex){
       ex.printStackTrace();
   }

When user logout from gmail then the user should also be logout from firebase. This is how I resolved this issue.