Custom Dialog Flutter with many buttons

Question

What I'm trying to do is create a custom dialog with many buttons in flutter, When user press a button, my goal is to close custom dialog and know which button is pressed (in order to refresh my homepage by using of provider)

I define custom dialog with 2 button (for example). How I can achieve my goal?

That is the code:

CustomDialog.dart

import 'package:flutter/material.dart';
class CustomDialog extends StatelessWidget {

  dialogContent(BuildContext context) {
    return Container(
      decoration: new BoxDecoration(
        color: Colors.white,
        shape: BoxShape.rectangle,
        borderRadius: BorderRadius.circular(10),
        boxShadow: [
          BoxShadow(
            color: Colors.black26,
            blurRadius: 10.0,
            offset: const Offset(0.0, 10.0),
          ),
        ],
      ),
      child: Column(
        mainAxisSize: MainAxisSize.min, // To make the card compact
        children: <Widget>[
          RaisedButton(
            onPressed: (){},
            child: Text("Button 1"),
          ),

          RaisedButton(
            onPressed: (){},
            child: Text("Button 2"),
          ),
        ],
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Dialog(
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(10),
      ),
      elevation: 0.0,
      backgroundColor: Colors.transparent,
      child: dialogContent(context),
    );
  }
}

In main.dart I call it:

Container(
              child: Center(
                child: RaisedButton(
                  onPressed: (){
                    showDialog(context: context,
                        builder: (BuildContext context){
                          return CustomDialog(

                          );
                        }
                    );
                  },
                  child: Text("Custom Dialog"),
                ),
              ),
            ),

Answer 1

I solved in this way:

showDialog(context: context,
                    builder: (BuildContext context){
                      return CustomDialog(

                      );
                    }
                ).then((value) {

                });

And in CustomDialog:

Navigator.pop(context, //** RETURNED VALUE**//);