Cloud Firestore查询以获取文档ID，Flutter

dependencies:
  flutter:
    sdk: flutter
  firebase_core: latest_version
  cloud_firestore: latest_version

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

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Firestore Query Example'),
        ),
        body: FirestoreQueryExample(),
      ),
    );
  }
}

class FirestoreQueryExample extends StatefulWidget {
  @override
  _FirestoreQueryExampleState createState() => _FirestoreQueryExampleState();
}

class _FirestoreQueryExampleState extends State<FirestoreQueryExample> {
  List<String> documentIds = [];

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

  Future<void> fetchDocumentIds() async {
    CollectionReference collectionRef = FirebaseFirestore.instance.collection('your_collection_name');
    QuerySnapshot querySnapshot = await collectionRef.get();

    querySnapshot.docs.forEach((doc) {
      setState(() {
        documentIds.add(doc.id);
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemCount: documentIds.length,
      itemBuilder: (context, index) {
        return ListTile(
          title: Text(documentIds[index]),
        );
      },
    );
  }
}

service cloud.firestore {
  match /databases/{database}/documents {
    match /{document=**} {
      allow read, write: if request.auth != null;
    }
  }
}

dependencies:
  firebase_core: ^2.10.3
  cloud_firestore: ^3.1.7