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Update README.md
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‎README.md‎

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@@ -14,3 +14,6 @@ A few resources to get you started if this is your first Flutter project:
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For help getting started with Flutter development, view the
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[online documentation](https://docs.flutter.dev/), which offers tutorials,
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samples, guidance on mobile development, and a full API reference.
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![Screenshot (706)](https://user-images.githubusercontent.com/38869235/170762317-cf3028f6-37f0-45ed-be33-4b48321de123.png)

‎android/app/build.gradle‎

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@@ -51,6 +51,7 @@ android {
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targetSdkVersion flutter.targetSdkVersion
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versionCode flutterVersionCode.toInteger()
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versionName flutterVersionName
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multiDexEnabled true
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}
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buildTypes {

‎lib/Screens/add_task_screen.dart‎

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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:todolistapp_updates/models/task_data.dart';
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class AddTaskScreen extends StatelessWidget {
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final Function addTaskCallback;
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const AddTaskScreen ({Key? key, required this.addTaskCallback}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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String newTaskTitle='';
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return Container(
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color:const Color(0xff757575),
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child: Container(
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padding: const EdgeInsets.all(20.0),
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decoration: const BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(20.0),
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topRight: Radius.circular(20.0),
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),
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: <Widget>[
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const Center(
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child: Text(
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'Add Text',
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style: TextStyle(
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fontSize: 30.0,
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color:Colors.lightBlueAccent
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),
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),
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),
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TextField(
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autofocus: true,
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textAlign: TextAlign.center,
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onChanged: (newValue){
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newTaskTitle = newValue;
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},
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),
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FlatButton(
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onPressed: (){
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Provider.of<TaskData>(context, listen: false).addTask(newTaskTitle);
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Navigator.pop(context);
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},
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color: Colors.lightBlueAccent,
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child: const Text('Add'),
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),
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],
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),
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),
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);
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}
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}

‎lib/Screens/tasks_screen.dart‎

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@@ -1,63 +1,87 @@
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import 'package:flutter/material.dart';
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import 'package:todolistapp_updates/widgets/TasksList.dart';
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import 'add_task_screen.dart';
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import 'package:todolistapp_updates/models/task_data.dart';
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import 'package:provider/provider.dart';
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class TasksScreen extends StatelessWidget {
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class TasksScreen extends StatelessWidget{
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const TasksScreen({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: Colors.lightBlueAccent,
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floatingActionButton: FloatingActionButton(
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onPressed: (){},
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onPressed: () {
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showModalBottomSheet(
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context: context,
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builder: (context) => SingleChildScrollView(
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child:Container(
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padding: EdgeInsets.only(bottom: MediaQuery.of(context).viewInsets.bottom),
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child: AddTaskScreen(
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addTaskCallback: (newValue){
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// setState((){
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// tasks.add(Task(name: newValue));
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// });
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Navigator.pop(context);
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},
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),
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)
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),
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isScrollControlled: true,
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); //return a widget
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},
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backgroundColor: Colors.lightBlueAccent,
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child: const Icon(Icons.add),
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),
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body: Column(
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children: <Widget>[
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Container(
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padding:
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const EdgeInsets.only(top: 60.0, left: 30.0, right: 30.0, bottom: 30.0),
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padding: const EdgeInsets.only(
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top: 60.0, left: 30.0, right: 30.0, bottom: 30.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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CircleAvatar(
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backgroundColor: Colors.white,
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radius: 30.0,
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child: Icon(Icons.list),
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backgroundColor: Colors.white,
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radius: 30.0,
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child: Icon(Icons.list),
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),
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SizedBox(
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height: 10.0,
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),
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Text('Todoey',
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Text(
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'Todoey',
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style: TextStyle(
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color: Colors.white,
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fontSize: 50.0,
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fontWeight: FontWeight.w700,
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),
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),
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Text(
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'12 Tasks',
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'${Provider.of<TaskData>(context).taskCount} Tasks',
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style: TextStyle(
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fontSize: 18,
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color: Colors.white,
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),
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),
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],
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),
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),
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Expanded(
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child: Container(
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decoration: const BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(20.0),
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topRight: Radius.circular(20.0),
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padding: const EdgeInsets.symmetric(horizontal: 20.0),
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decoration: const BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.only(
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topLeft: Radius.circular(20.0),
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topRight: Radius.circular(20.0),
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),
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),
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),
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),
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child: TasksList()),
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),
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],
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),

‎lib/main.dart‎

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@@ -1,4 +1,6 @@
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:todolistapp_updates/models/task_data.dart';
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import 'Screens/tasks_screen.dart';
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@override
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Widget build(BuildContext context) {
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return const MaterialApp(
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home: TasksScreen(),
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return ChangeNotifierProvider(
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create: (BuildContext context) =>TaskData(),
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child: const MaterialApp(
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home: TasksScreen(),
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),
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);
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}
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}

‎lib/models/task.dart‎

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class Task{
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final String? name ;
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bool? isDone;
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Task({this.name, this.isDone= false});
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void toggleDone(){
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isDone = !isDone!;
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}
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}

‎lib/models/task_data.dart‎

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import 'dart:collection';
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import 'package:flutter/material.dart';
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import 'package:todolistapp_updates/models/task.dart';
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class TaskData extends ChangeNotifier{
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final List<Task> _tasks = [
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Task(name: 'Buy milk'),
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Task(name: 'Buy eggs'),
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Task(name: 'Buy breads'),
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];
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// List<Task> get tasks {
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// return _tasks;
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// }
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UnmodifiableListView <Task> get tasks{
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return UnmodifiableListView(_tasks);
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}
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int get taskCount{
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return _tasks.length;
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}
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void addTask(String newTaskTitle){
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final task = Task(name: newTaskTitle);
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_tasks.add(task);
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notifyListeners();
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}
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void updateTask(Task task){
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task.toggleDone();
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notifyListeners();
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}
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void deleteTask(Task task){
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_tasks.remove(task);
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notifyListeners();
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}
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}

‎lib/widgets/TasksList.dart‎

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import 'package:flutter/material.dart';
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import 'package:todolistapp_updates/widgets/TasksTile.dart';
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import 'package:provider/provider.dart';
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import 'package:todolistapp_updates/models/task_data.dart';
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class TasksList extends StatelessWidget {
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const TasksList({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Consumer<TaskData>(
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builder: (context, taskData, child) {
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return ListView.builder(
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itemBuilder: (context, index) {
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final task = taskData.tasks[index];
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return TaskTile(
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taskTitle: Provider.of<TaskData>(context).tasks[index].name,
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isChecked: Provider.of<TaskData>(context).tasks[index].isDone,
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checkboxCallback: (bool checkboxState) {
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taskData.updateTask(task);
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},
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longPressCallback: (){
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taskData.deleteTask(task);
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},
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);
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},
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itemCount:taskData.taskCount,
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);
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},
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);
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}
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}

‎lib/widgets/TasksTile.dart‎

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import 'package:flutter/material.dart';
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class TaskTile extends StatelessWidget {
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final bool? isChecked ;
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final String? taskTitle;
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final Function checkboxCallback;
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final Function longPressCallback;
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const TaskTile({Key? key, this.isChecked , this.taskTitle, required this.checkboxCallback, required this.longPressCallback}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return ListTile(
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onLongPress: (){
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longPressCallback();
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} ,
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title: Text(
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taskTitle!,
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style: TextStyle(
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decoration: isChecked! ? TextDecoration.lineThrough : null,
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fontSize: 20,
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),
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),
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trailing: Checkbox(
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activeColor: Colors.lightBlueAccent,
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value: isChecked,
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onChanged: (newValue){
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checkboxCallback(newValue);
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},
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),
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);
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}
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}
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‎pubspec.lock‎

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url: "https://pub.dartlang.org"
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source: hosted
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version: "1.7.0"
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nested:
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dependency: transitive
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description:
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name: nested
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url: "https://pub.dartlang.org"
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source: hosted
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version: "1.0.0"
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path:
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dependency: transitive
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description:
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name: path
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url: "https://pub.dartlang.org"
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source: hosted
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version: "1.8.1"
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provider:
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dependency: "direct main"
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description:
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name: provider
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url: "https://pub.dartlang.org"
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source: hosted
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version: "6.0.3"
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sky_engine:
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dependency: transitive
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description: flutter
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version: "2.1.2"
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sdks:
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dart: ">=2.17.0 <3.0.0"
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flutter: ">=1.16.0"

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