Flutter如何获取json的数据

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

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  List<dynamic> data = [];

  Future<void> fetchData() async {
    final response =
        await http.get(Uri.parse('https://example.com/api/data'));

    if (response.statusCode == 200) {
      setState(() {
        data = json.decode(response.body);
      });
    }
  }

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

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

void main() {
  runApp(const MaterialApp(
    home: MyHomePage(),
  ));
}