Flutter showDialog(context) in initState method

Question

I\'m trying to use the showDialog(context, builder) to display a greeting message when the user navigates to a certain page.

I tried this by calling the

Answer 1

@override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addPostFrameCallback((_) async {
      await showDialog(
        context: context,
        builder: (BuildContext context) => new showDialog(
           context: context, 
           builder: (BuildContext context) {
              return new Container(child: new Text('foo'));
          });
      );
    });
  }