如何在flutter中为从mysql/php获取的每个数据设置变量？

import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';

class DataScreen extends StatefulWidget {
  @override
  _DataScreenState createState() => _DataScreenState();
}

class _DataScreenState extends State<DataScreen> {
  List<String> dataList = [];

  @override
  void initState() {
    super.initState();
    fetchData();
  }

  Future<void> fetchData() async {
    final response = await http.get('http://your-php-api-url');
    if (response.statusCode == 200) {
      final data = json.decode(response.body);
      setState(() {
        dataList = List<String>.from(data);
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Data Screen'),
      ),
      body: ListView.builder(
        itemCount: dataList.length,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text(dataList[index]),
          );
        },
      ),
    );
  }
}