Flutter :如何在List<String>中从firestore中获取数据？

import 'package:firebase_core/firebase_core.dart';
import 'package:cloud_firestore/cloud_firestore.dart';

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

Future<List<String>> getDataFromFirestore() async {
  List<String> dataList = [];

  // 获取Firestore实例
  FirebaseFirestore firestore = FirebaseFirestore.instance;

  // 获取数据集合的引用
  CollectionReference collectionRef = firestore.collection('your_collection');

  // 获取数据快照
  QuerySnapshot querySnapshot = await collectionRef.get();

  // 遍历快照中的文档并将数据添加到List<String>中
  querySnapshot.docs.forEach((doc) {
    dataList.add(doc.data()['your_field']);
  });

  return dataList;
}

List<String> dataList = await getDataFromFirestore();