import 'dart:async';
import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
Future<Album> fetchAlbum() async {
final response = await http.get(
Uri.parse('https://jsonplaceholder.typicode.com/albums/1'),
);
if (response.statusCode == 200) {
return Album.fromJson(jsonDecode(response.body));
} else {
throw Exception('Failed to load album');
}
}
Future<Album> deleteAlbum(String id) async {
final http.Response response = await http.delete(
Uri.parse('https://jsonplaceholder.typicode.com/albums/$id'),
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
},
);
if (response.statusCode == 200) {
return Album.fromJson(jsonDecode(response.body));
} else {
throw Exception('Failed to delete album.');
}
}
class Album {
final int? id;
final String? title;
const Album({this.id, this.title});
factory Album.fromJson(Map<String, dynamic> json) {
return Album(
id: json['id'],
title: json['title'],
);
}
}
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() {
return _MyAppState();
}
}
class _MyAppState extends State<MyApp> {
late Future<Album> _futureAlbum;
@override
void initState() {
super.initState();
_futureAlbum = fetchAlbum();
}
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Delete Data Example',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: Scaffold(
appBar: AppBar(
title: const Text('Delete Data Example'),
),
body: Center(
child: FutureBuilder<Album>(
future: _futureAlbum,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.done) {
if (snapshot.hasData) {
return Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(snapshot.data?.title ?? 'Deleted'),
ElevatedButton(
child: const Text('Delete Data'),
onPressed: () {
setState(() {
_futureAlbum =
deleteAlbum(snapshot.data!.id.toString());
});
},
),
],
);
} else if (snapshot.hasError) {
return Text('${snapshot.error}');
}
}
return const CircularProgressIndicator();
},
),
),
),
);
}
}