Created
August 28, 2019 07:03
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Todo app main.dart
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| import 'package:flutter/material.dart'; | |
| void main() { | |
| runApp(MyApp()); | |
| } | |
| class MyApp extends StatelessWidget { | |
| // This widget is the root of your application. | |
| @override | |
| Widget build(BuildContext context) { | |
| return MaterialApp( | |
| title: 'Todo App', | |
| theme: ThemeData( | |
| primarySwatch: Colors.red, | |
| ), | |
| home: TodoWidget(), | |
| ); | |
| } | |
| } | |
| // My todo model | |
| class TodoItem { | |
| TodoItem(this.done, this.text); | |
| final bool done; | |
| final String text; | |
| } | |
| class TodoWidget extends StatefulWidget { | |
| @override | |
| _TodoWidgetState createState() => _TodoWidgetState(); | |
| } | |
| class _TodoWidgetState extends State<TodoWidget> { | |
| List<TodoItem> todos = []; | |
| int currentCount = 0; | |
| Future<String> _showTodoDialog() async { | |
| String todoText; | |
| return showDialog<String>( | |
| context: context, | |
| barrierDismissible: false, // user must tap button! | |
| builder: (BuildContext context) { | |
| return AlertDialog( | |
| title: Text('Add todo'), | |
| content: SingleChildScrollView( | |
| child: ListBody( | |
| children: <Widget>[ | |
| TextField(onChanged: (value) { | |
| todoText = value; | |
| print(value); | |
| }), | |
| ], | |
| ), | |
| ), | |
| actions: <Widget>[ | |
| FlatButton( | |
| child: Text('Add'), | |
| onPressed: () { | |
| Navigator.of(context).pop(todoText); | |
| }, | |
| ), | |
| ], | |
| ); | |
| }, | |
| ); | |
| } | |
| @override | |
| Widget build(BuildContext context) { | |
| return Scaffold( | |
| appBar: AppBar(title: Text('Todo App')), | |
| floatingActionButton: FloatingActionButton( | |
| onPressed: () async { | |
| String todoText = await _showTodoDialog(); | |
| setState(() { | |
| todos.add(new TodoItem(false, todoText)); | |
| }); | |
| }, | |
| child: Icon(Icons.add), | |
| ), | |
| body: Container( | |
| child: ListView.builder( | |
| padding: const EdgeInsets.all(8.0), | |
| itemCount: todos.length, | |
| itemBuilder: (BuildContext context, int index) { | |
| return TodoItemWidget( | |
| item: todos[index], | |
| onChangedCallback: (value) { | |
| setState(() { | |
| todos[index] = new TodoItem(value, todos[index].text); | |
| }); | |
| }); | |
| }), | |
| ), | |
| ); | |
| } | |
| } | |
| class TodoItemWidget extends StatelessWidget { | |
| final TodoItem item; | |
| final Function(bool) onChangedCallback; | |
| const TodoItemWidget({Key key, this.item, this.onChangedCallback}) | |
| : super(key: key); | |
| @override | |
| Widget build(BuildContext context) { | |
| return CheckboxListTile( | |
| key: Key(item.text), | |
| title: Text(item.text, | |
| style: | |
| TextStyle(color: item.done ? Colors.lightGreen : Colors.black)), | |
| value: item.done, | |
| onChanged: onChangedCallback); | |
| } | |
| } |
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