flutter_auth_tut

.\lib\scr\home.dart

class _Home extends State<StatefulWidget> {
  var mUser;
  var mUserName;
  var isLoggingIn = false;

  Future clickLogin() async {
    //Set isLoggingIn to true at the start of clicking Login
    setState(() {
      isLoggingIn = true;
    });

    mUser = await loginWithGoogle().catchError((e) => setState(() {
          isLoggingIn = false;
        }));
    assert(mUser != null);

    setState(() {
      isLoggingIn = false;
      mUserName = mUser.displayName;
    });
  }

  @override
  Widget build(BuildContext context) {
  //...
  }
}