在Flutter上限制从Firebase中检索文档

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<DocumentSnapshot>> getLimitedDocuments() async {
  QuerySnapshot querySnapshot = await FirebaseFirestore.instance
      .collection('your_collection') // 替换为你的集合名称
      .where('your_field', isEqualTo: 'your_value') // 替换为你的限制条件
      .limit(10) // 替换为你想要限制的文档数量
      .get();

  return querySnapshot.docs;
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Limited Documents'),
        ),
        body: FutureBuilder<List<DocumentSnapshot>>(
          future: getLimitedDocuments(),
          builder: (context, snapshot) {
            if (snapshot.connectionState == ConnectionState.waiting) {
              return CircularProgressIndicator();
            } else if (snapshot.hasError) {
              return Text('Error: ${snapshot.error}');
            } else {
              List<DocumentSnapshot> documents = snapshot.data;
              return ListView.builder(
                itemCount: documents.length,
                itemBuilder: (context, index) {
                  return ListTile(
                    title: Text(documents[index].data()['your_field']),
                  );
                },
              );
            }
          },
        ),
      ),
    );
  }
}