如何从API中获取对象并在flutter中更新它

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

Future<dynamic> fetchData() async {
  final response = await http.get(Uri.parse('API的URL'));
  if (response.statusCode == 200) {
    return jsonDecode(response.body);
  } else {
    throw Exception('Failed to fetch data');
  }
}

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  dynamic myObject;

  @override
  void initState() {
    super.initState();
    fetchData().then((data) {
      setState(() {
        myObject = data;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    if (myObject == null) {
      return CircularProgressIndicator(); // 显示加载指示器
    } else {
      return Text(myObject.toString()); // 根据需要显示对象的信息
    }
  }
}