feat: implement todo list fetching with provider

task_manager_app/lib/Todo.dart

@@ -0,0 +1,17 @@
+class Todo {
+  final int id;
+  final int userId;
+  final String title;
+  final bool completed;
+
+  Todo({required this.id, required this.userId, required this.title, required this.completed});
+
+  factory Todo.fromJson(Map<String, dynamic> json) {
+    return Todo(
+      id: json['id'],
+      userId: json['userId'],
+      title: json['title'],
+      completed: json['completed'],
+    );
+  }
+}

task_manager_app/lib/TodoProvider.dart

@@ -0,0 +1,43 @@
+import 'package:flutter/material.dart';
+import 'package:http/http.dart' as http;
+import 'package:task_manager_app/Todo.dart';
+import 'dart:convert';
+
+
+class TodoProvider with ChangeNotifier {
+  List<Todo> _items = [];
+  bool _isLoading = false;
+  String? _errorMessage;
+
+  List<Todo> get items => _items;
+  bool get isLoading => _isLoading;
+  String? get errorMessage => _errorMessage;
+
+  Future<void> fetchTodos() async {
+    _isLoading = true;
+    _errorMessage = null;
+    notifyListeners();
+
+    final stopwatch = Stopwatch()..start();
+
+    try {
+      final response = await http.get(
+        Uri.parse('https://jsonplaceholder.typicode.com/todos?_limit=20'),
+      );
+
+      if (response.statusCode == 200) {
+        List<dynamic> data = json.decode(response.body);
+        _items = data.map((item) => Todo.fromJson(item)).toList();
+      } else {
+        _errorMessage = "Server Error: ${response.statusCode}";
+      }
+    } catch (e) {
+      _errorMessage = "Failed to load data. Please check your connection.";
+    } finally {
+      _isLoading = false;
+      stopwatch.stop();
+      print("Fetch took: ${stopwatch.elapsedMilliseconds}ms"); // Performance log
+      notifyListeners();
+    }
+  }
+}

task_manager_app/lib/main.dart

@@ -1,24 +1,79 @@
 import 'package:flutter/material.dart';
-import 'student_registration_screen.dart';
-import 'home_page.dart';
+import 'package:provider/provider.dart';
+import 'package:task_manager_app/TodoProvider.dart';
+
 
 void main() {
-  runApp(const TaskManagerApp());
+  runApp(
+    ChangeNotifierProvider(
+      create: (context) => TodoProvider()..fetchTodos(),
+      child: const MyApp(),
+    ),
+  );
 }
 
-class TaskManagerApp extends StatelessWidget {
-  const TaskManagerApp({super.key});
+class MyApp extends StatelessWidget {
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      title: 'Task Manager',
-      theme: ThemeData(
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
-        useMaterial3: true,
-      ),
-      home: const HomePage(),
-      // home: const StudentRegistrationScreen(),
+      home: const TodoListScreen(),
     );
   }
 }
+
+class TodoListScreen extends StatelessWidget {
+  const TodoListScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final provider = Provider.of<TodoProvider>(context);
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('Group 1 - Todos')),
+      body: RefreshIndicator(
+        onRefresh: () => provider.fetchTodos(),
+        child: _buildBody(provider),
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: () => provider.fetchTodos(),
+        child: const Icon(Icons.refresh),
+      ),
+    );
+  }
+
+  Widget _buildBody(TodoProvider provider) {
+    if (provider.isLoading) {
+      return const Center(child: CircularProgressIndicator());
+    }
+
+    if (provider.errorMessage != null) {
+      return Center(child: Text(provider.errorMessage!, style: const TextStyle(color: Colors.red)));
+    }
+
+    if (provider.items.isEmpty) {
+      return const Center(child: Text("No items"));
+    }
+
+    return ListView.builder(
+      itemCount: provider.items.length,
+      itemBuilder: (context, index) {
+        final todo = provider.items[index];
+        return ListTile(
+          leading: CircleAvatar(child: Text(todo.id.toString())),
+          title: Text(
+            todo.title,
+            style: TextStyle(
+              decoration: todo.completed ? TextDecoration.lineThrough : null,
+            ),
+          ),
+          trailing: Icon(
+            todo.completed ? Icons.check_circle : Icons.radio_button_unchecked,
+            color: todo.completed ? Colors.green : Colors.grey,
+          ),
+        );
+      },
+    );
+  }
+}

task_manager_app/pubspec.lock

@@ -75,6 +75,22 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      sha256: "87721a4a50b19c7f1d49001e51409bddc46303966ce89a65af4f4e6004896412"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.6.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.2"
   leak_tracker:
     dependency: transitive
     description:
@@ -131,6 +147,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.17.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   path:
     dependency: transitive
     description:
@@ -139,6 +163,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      sha256: "4e82183fa20e5ca25703ead7e05de9e4cceed1fbd1eadc1ac3cb6f565a09f272"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.5+1"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -192,6 +224,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.10"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
   vector_math:
     dependency: transitive
     description:
@@ -208,6 +248,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "15.0.2"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
 sdks:
   dart: ">=3.9.0-0 <4.0.0"
   flutter: ">=3.18.0-18.0.pre.54"

task_manager_app/pubspec.yaml

@@ -9,6 +9,8 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
+  http: ^1.2.0
+  provider: ^6.1.1 
   cupertino_icons: ^1.0.6
 
 dev_dependencies:
@@ -18,3 +20,5 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+
+

task_manager_app/test/widget_test.dart

@@ -10,10 +10,11 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:flutter/material.dart';
 import 'package:task_manager_app/main.dart';
 
+
 void main() {
   testWidgets('App shows Task Manager title and welcome message',
       (WidgetTester tester) async {
-    await tester.pumpWidget(const TaskManagerApp());
+    await tester.pumpWidget(const MyApp());
 
     // AppBar title from HomePage.
     expect(find.textContaining('Week 2'), findsOneWidget);