从Firestore向StreamBuilder读取添加SearchField

dependencies:
  cloud_firestore: ^2.5.3

import 'package:cloud_firestore/cloud_firestore.dart';

final FirebaseFirestore firestore = FirebaseFirestore.instance;
final CollectionReference collection = firestore.collection('your_collection');

StreamBuilder<QuerySnapshot>(
  stream: collection.snapshots(),
  builder: (BuildContext context, AsyncSnapshot<QuerySnapshot> snapshot) {
    if (snapshot.hasError) {
      return Text('Error: ${snapshot.error}');
    }

    if (snapshot.connectionState == ConnectionState.waiting) {
      return Text('Loading...');
    }

    final List<DocumentSnapshot> documents = snapshot.data!.docs;
    final List<DocumentSnapshot> filteredDocuments = documents.where((doc) {
      final String searchField = doc['searchField'];
      // 进行搜索过滤逻辑，可以使用正则表达式或其他方式
      return searchField.contains('your_search_query');
    }).toList();

    return ListView.builder(
      itemCount: filteredDocuments.length,
      itemBuilder: (BuildContext context, int index) {
        final DocumentSnapshot document = filteredDocuments[index];
        // 根据需要显示数据
        return ListTile(
          title: Text(document['title']),
          subtitle: Text(document['subtitle']),
        );
      },
    );
  },
);