如何在列表视图中将数据从Firebase实时检索到flutter应用程序

import 'package:flutter/material.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_database/firebase_database.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

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

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

class _MyHomePageState extends State<MyHomePage> {
  List<String> dataList = [];

  @override
  void initState() {
    super.initState();
    DatabaseReference reference =
        FirebaseDatabase.instance.reference().child('data');
    reference.onValue.listen((event) {
      setState(() {
        dataList.clear();
        Map<dynamic, dynamic> values = event.snapshot.value;
        values.forEach((key, value) {
          dataList.add(value);
        });
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Firebase List View'),
      ),
      body: ListView.builder(
        itemCount: dataList.length,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text(dataList[index]),
          );
        },
      ),
    );
  }
}