Flutter:如何显示来自包含对象列表的已解析json对象的数据

import 'dart:convert';

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'JSON Data Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  final jsonData = '''
    [
      {"name": "John", "age": 25},
      {"name": "Jane", "age": 30},
      {"name": "Bob", "age": 35}
    ]
  ''';

  @override
  Widget build(BuildContext context) {
    List<Person> persons = List<Person>.from(json.decode(jsonData).map((x) => Person.fromJson(x)));

    return Scaffold(
      appBar: AppBar(
        title: Text('JSON Data Example'),
      ),
      body: ListView.builder(
        itemCount: persons.length,
        itemBuilder: (context, index) {
          return ListTile(
            title: Text(persons[index].name),
            subtitle: Text('Age: ${persons[index].age}'),
          );
        },
      ),
    );
  }
}

class Person {
  final String name;
  final int age;

  Person({this.name, this.age});

  factory Person.fromJson(Map<String, dynamic> json) {
    return Person(
      name: json['name'],
      age: json['age'],
    );
  }
}