gdg-devfest-final.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

import 'package:flutter/foundation.dart'
    show debugDefaultTargetPlatformOverride;


class TodoModel {

  String title;
  String date;
  bool done;

  TodoModel({
    @required this.title,
    @required this.date,
    @required this.done
  });
}


void main() {

  debugDefaultTargetPlatformOverride = TargetPlatform.fuchsia;
  runApp(MyApp());
}


class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: new ThemeData(
        primarySwatch: Colors.orange,
      ),
      home: new MyHomePage(),
    );
  }
}


class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

  List<TodoModel> models = [
    TodoModel(
      done: false,
      title: "Some title",
      date: "Some date"
    ),
    TodoModel(
        done: false,
        title: "Some title",
        date: "Some date"
    ),
    TodoModel(
        done: true,
        title: "other stuff",
        date: "Some date"
    ),
    TodoModel(
        done: false,
        title: "Some title",
        date: "Some date"
    ),
  ];





  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("GDG-Devfest super ToDo App"),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () async {
          TodoModel model = await showDialog<TodoModel>(context: context,
            builder: (context) {
              return CreateTodoItemDialog();
            },
          );
          if(model != null) {
            setState(() {
              models.add(model);
            });
          }
        },
        child: Icon(Icons.add,color: Colors.white,),
      ),
      body: ListView.builder(
        itemCount: models.length,
        itemBuilder: (context, index) {
          return TodoItem(
            todoModel: models[index],
            onChanged: (done) {
              setState(() {
                models[index].done = done;
              });
            },
          );
        },
      ),
    );
  }
}

class TodoItem extends StatelessWidget {

  final TodoModel todoModel;
  final ValueChanged<bool> onChanged;

  const TodoItem({
    Key key,
    @required this.todoModel,
    @required this.onChanged
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return ListTile(
      title: Text(todoModel.title,
      style: TextStyle(
        color: todoModel.done? Colors.red : Colors.black,
        decoration: todoModel.done? TextDecoration.lineThrough : null
      ),
      ),
      subtitle: Text(todoModel.date),
      trailing: Checkbox(
        value: todoModel.done,
        onChanged: onChanged,
      ),
    );
  }
}


class CreateTodoItemDialog extends StatelessWidget {

  final TextEditingController controller = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return SimpleDialog(
      title: Text("Create new item"),
      contentPadding: const EdgeInsets.all(16),
      children: <Widget>[
        TextField(
          controller: controller,
          decoration: InputDecoration(
            hintText: "Todo task item"
          ),
        ),
        SizedBox(height: 16,),
        Row(
          mainAxisAlignment: MainAxisAlignment.end,
          children: <Widget>[
            MaterialButton(
              onPressed: () {
                Navigator.of(context).pop(null);
              },
              child: Text("Cancle"),
            ),
            RaisedButton(
              color: Theme.of(context).primaryColor,
              onPressed: () {
                Navigator.of(context).pop(TodoModel(
                  done: false,
                  date: DateTime.now().toIso8601String(),
                  title: controller.text,

                ));
              },
              child: Text("Create Task"),
            ),
          ],
        ),
      ],

    );
  }
}