Last active
April 13, 2018 09:41
-
-
Save andrewpmoore/2a69fe144a065b927ec64f641e9452d4 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import 'package:flutter/material.dart'; | |
import 'package:scoped_model/scoped_model.dart'; | |
class AppModel extends Model { | |
int _count = 0; | |
int get count => _count; | |
void increment() { | |
_count++; | |
notifyListeners(); | |
} | |
void decrement() { | |
_count--; | |
notifyListeners(); | |
} | |
} | |
void main() => runApp(new MyApp()); | |
class MyApp extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return new MaterialApp( | |
title: 'Counter Example', | |
theme: ThemeData.dark(), | |
home: new ScopedModel<AppModel>( | |
model: new AppModel(), | |
child: new FirstScreen(), | |
), | |
); | |
} | |
} | |
class FirstScreen extends StatelessWidget { | |
@override | |
Widget build(BuildContext context) { | |
return new Scaffold( | |
appBar: new AppBar( | |
title: new Text('First Screen'), | |
), | |
body: new Center( | |
child: new RaisedButton( | |
child: new Text('Launch new screen'), | |
onPressed: () { | |
Navigator.push( | |
context, | |
new MaterialPageRoute(builder: (context) => new Home()), | |
); | |
}), | |
), | |
); | |
} | |
} | |
class Home extends StatelessWidget { | |
final AppModel appModelOne = new AppModel(); | |
final AppModel appModelTwo = new AppModel(); | |
@override | |
Widget build(BuildContext context) { | |
return Scaffold( | |
appBar: new AppBar( | |
title: new Text('Basic Counter'), | |
), | |
body: Center( | |
child: Row( | |
mainAxisAlignment: MainAxisAlignment.spaceEvenly, | |
children: <Widget>[ | |
ScopedModel<AppModel>( | |
model: appModelOne, | |
child: new Counter( | |
counterName: 'App Model One', | |
), | |
), | |
ScopedModel<AppModel>( | |
model: appModelTwo, | |
child: Counter( | |
counterName: 'App Model Two', | |
), | |
), | |
], | |
), | |
)); | |
} | |
} | |
class Counter extends StatelessWidget { | |
final String counterName; | |
Counter({Key key, this.counterName}); | |
@override | |
Widget build(BuildContext context) { | |
return ScopedModelDescendant<AppModel>( | |
builder: (context, child, model) => Column( | |
mainAxisAlignment: MainAxisAlignment.center, | |
children: <Widget>[ | |
new Text("$counterName:"), | |
new Text( | |
model.count.toString(), | |
style: Theme.of(context).textTheme.display1, | |
), | |
new ButtonBar( | |
children: <Widget>[ | |
new IconButton( | |
icon: new Icon(Icons.add), | |
onPressed: model.increment, | |
), | |
new IconButton( | |
icon: new Icon(Icons.minimize), | |
onPressed: model.decrement, | |
) | |
], | |
) | |
], | |
), | |
); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment