如何在Flutter DataTable中进行无限滚动？

import 'package:flutter/material.dart';

class InfiniteDataTable extends StatefulWidget {
  @override
  _InfiniteDataTableState createState() => _InfiniteDataTableState();
}

class _InfiniteDataTableState extends State<InfiniteDataTable> {
  List<DataRow> _dataRows = [];
  ScrollController _scrollController = ScrollController();
  bool _isLoading = false;
  int _currentPage = 1;

  @override
  void initState() {
    super.initState();
    _loadData();
    _scrollController.addListener(_scrollListener);
  }

  @override
  void dispose() {
    _scrollController.dispose();
    super.dispose();
  }

  void _scrollListener() {
    if (_scrollController.position.pixels ==
        _scrollController.position.maxScrollExtent) {
      _loadData();
    }
  }

  Future<void> _loadData() async {
    if (!_isLoading) {
      setState(() {
        _isLoading = true;
      });

      // 模拟异步加载数据
      await Future.delayed(Duration(seconds: 2));

      List<DataRow> newDataRows = [];

      // 加载新数据
      for (int i = 0; i < 10; i++) {
        newDataRows.add(DataRow(cells: [
          DataCell(Text('Row ${_dataRows.length + i} - Column 1')),
          DataCell(Text('Row ${_dataRows.length + i} - Column 2')),
          DataCell(Text('Row ${_dataRows.length + i} - Column 3')),
        ]));
      }

      setState(() {
        _dataRows.addAll(newDataRows);
        _isLoading = false;
        _currentPage++;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      controller: _scrollController,
      itemCount: _dataRows.length + 1,
      itemBuilder: (context, index) {
        if (index < _dataRows.length) {
          return _dataRows[index];
        } else {
          return _isLoading
              ? Center(child: CircularProgressIndicator())
              : Container();
        }
      },
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: Scaffold(
      appBar: AppBar(title: Text('Infinite DataTable')),
      body: InfiniteDataTable(),
    ),
  ));
}