title: Is there a way to load async data on InitState method?
body: <p>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.</p>
  
  <p>My initState method is:</p>
  
  <pre><code> @override
    void initState () {
      super.initState();
      _googleSignIn.onCurrentUserChanged.listen((GoogleSignInAccount account)     {
        setState(() {
          _currentUser = account;
        });
      });
      _googleSignIn.signInSilently();
    }
  </code></pre>
  
  <p>I will appreciate any feedback.</p>