将list<string>从Firestore检索到flutter页面

Firestore.instance.collection('users').getDocuments();

import 'package:flutter/material.dart';
import 'package:cloud_firestore/cloud_firestore.dart';

class MyFirestoreListPage extends StatefulWidget {
  @override
  _MyFirestoreListPageState createState() => _MyFirestoreListPageState();
}

class _MyFirestoreListPageState extends State<MyFirestoreListPage> {
  List<String> stringList = [];

  @override
  void initState() {
    super.initState();
    fetchDataFromFirestore();
  }

  Future<void> fetchDataFromFirestore() async {
    QuerySnapshot querySnapshot =
        await Firestore.instance.collection('your_collection').getDocuments();
    List<String> tempList = [];

    querySnapshot.documents.forEach((doc) {
      tempList.addAll(List.from(doc.data['your_list_field']));
    });

    setState(() {
      stringList = tempList;
    });
  }

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

void main() {
  runApp(MaterialApp(
    home: MyFirestoreListPage(),
  ));
}