dart - Is there a way to load async data on InitState method?

Question

I'm a looking for a way to load async data on InitState method, I need some data before build method runs. I'm using a GoogleAuth code, and I need to execute build method 'till a Stream runs.

My initState method is:

 @override
  void initState () {
    super.initState();
    _googleSignIn.onCurrentUserChanged.listen((GoogleSignInAccount account)     {
      setState(() {
        _currentUser = account;
      });
    });
    _googleSignIn.signInSilently();
  }

I will appreciate any feedback.

Answer 1

You can create an async method and call it inside your initState

       @override
        void initState () {
          super.initState();
          WidgetsBinding.instance.addPostFrameCallback((_){
            _asyncMethod();
          });

        }

        _asyncMethod() async {
         _googleSignIn.onCurrentUserChanged.listen((GoogleSignInAccount account)     {
            setState(() {
              _currentUser = account;
            });
          });
          _googleSignIn.signInSilently();
        }