Flutter:通过http请求使用Firebase实时数据库实现分页

dependencies:
  http: ^0.13.3

import 'package:http/http.dart' as http;

Future<List<dynamic>> fetchData(int pageSize, String lastKey) async {
  final response = await http.get(
    Uri.parse('https://your-firebase-database-url/data.json?orderBy=\$key&limitToFirst=$pageSize&startAt="$lastKey"'),
  );

  if (response.statusCode == 200) {
    final data = jsonDecode(response.body);
    return data.values.toList();
  } else {
    throw Exception('Failed to fetch data');
  }
}

class MyPage extends StatefulWidget {
  @override
  _MyPageState createState() => _MyPageState();
}

class _MyPageState extends State<MyPage> {
  List<dynamic> items = [];
  String lastKey = '';

  @override
  void initState() {
    super.initState();
    fetchData(10, lastKey).then((data) {
      setState(() {
        items = data;
        lastKey = data.last['key'];
      });
    });
  }

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