在Flutter中创建搜索栏而不需要调用Cloud Firestore的正确方法是什么？

import 'package:flutter/material.dart';

class SearchScreen extends StatefulWidget {
  @override
  _SearchScreenState createState() => _SearchScreenState();
}

class _SearchScreenState extends State<SearchScreen> {
  String _searchText = '';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: TextField(
          onChanged: (value) {
            setState(() {
              _searchText = value;
            });
          },
          decoration: InputDecoration(
            hintText: 'Search...',
          ),
        ),
      ),
      body: ListView.builder(
        itemCount: _searchText.isEmpty ? 0 : 10, // 假设搜索结果为10个
        itemBuilder: (context, index) {
          return ListTile(
            title: Text('Search Result ${index + 1}'),
          );
        },
      ),
    );
  }
}