Google+ sign out from a different activity

Question

I have started using the Google+ API for android, and I have created a sign-in application following this tutorial:

https://developers.google.com/+/mobi

Answer 1

Here's my solution. I have made a Utils singleton class. In my LoginActivity, I have a GoogleSignInClient object. So just before starting the DashboardActivity after login, I save the instance of googleSignInClient object by calling Utils.getInstance().setGoogleSignInClient(googleSignInClient). Now anywhere else, if I want to logout I have this method in Utils ready:

public void signOut() {
    googleSignInClient.signOut();
    FirebaseAuth.getInstance().signOut();
}

So now, I can do this from any other activity:

else if (id == R.id.action_logout) {
    Utils.getInstance().signOut();
    Intent intent = new Intent(this, LoginActivity.class);
    startActivity(intent);
}

Yes, you need to log out from both of them, otherwise, you might not see the account chooser the next time you tap the login button.