如何在flutter draggablescrollablesheet中创建堆栈垂直列表视图和水平列表视图？

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter DraggableScrollableSheet',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter DraggableScrollableSheet'),
      ),
      body: Stack(
        children: [
          ListView.builder(
            itemCount: 20,
            itemBuilder: (BuildContext context, int index) {
              return ListTile(
                title: Text('Item $index'),
              );
            },
          ),
          DraggableScrollableSheet(
            initialChildSize: 0.2,
            minChildSize: 0.1,
            maxChildSize: 0.8,
            builder: (BuildContext context, ScrollController scrollController) {
              return SingleChildScrollView(
                controller: scrollController,
                child: Container(
                  color: Colors.grey[200],
                  child: Column(
                    children: [
                      SizedBox(height: 20),
                      Text(
                        'Stacked Horizontal List View',
                        style: TextStyle(
                          fontWeight: FontWeight.bold,
                          fontSize: 20,
                        ),
                      ),
                      SizedBox(height: 10),
                      SizedBox(
                        height: 200,
                        child: ListView.builder(
                          scrollDirection: Axis.horizontal,
                          itemCount: 10,
                          itemBuilder: (BuildContext context, int index) {
                            return Container(
                              width: 150,
                              margin: EdgeInsets.all(10),
                              color: Colors.blue,
                              child: Center(
                                child: Text(
                                  'Item $index',
                                  style: TextStyle(
                                    color: Colors.white,
                                    fontWeight: FontWeight.bold,
                                    fontSize: 16,
                                  ),
                                ),
                              ),
                            );
                          },
                        ),
                      ),
                      SizedBox(height: 20),
                      Text(
                        'Stacked Vertical List View',
                        style: TextStyle(
                          fontWeight: FontWeight.bold,
                          fontSize: 20,
                        ),
                      ),
                      SizedBox(height: 10),
                      ListView.builder(
                        shrinkWrap: true,
                        physics: NeverScrollableScrollPhysics(),
                        itemCount: 10,
                        itemBuilder: (BuildContext context, int index) {
                          return Container(
                            height: 60,
                            margin: EdgeInsets.all(10),
                            color: Colors.green,
                            child: Center(
                              child: Text(
                                'Item $index',
                                style: TextStyle(
                                  color: Colors.white,
                                  fontWeight: FontWeight.bold,
                                  fontSize: 16,
                                ),
                              ),
                            ),
                          );
                        },
                      ),
                    ],
                  ),
                ),
              );
            },
          ),
        ],
      ),
    );
  }
}