Membuat Menu Pada flutter

import 'package:flutter/material.dart';

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      child: SingleChildScrollView(
        child: Column(
          children: [
            Container(
              width: MediaQuery.of(context).size.width,
              height: 300,
              child: Center(
                child: ClipRRect(
                  borderRadius: BorderRadius.circular(50.0),
                  child: Image(
                    image: AssetImage("images/download.png"),
                  ),
                ),
              ),
              decoration: new BoxDecoration(
                  color: Colors.red[300],
                  borderRadius:...