65 lines
1.6 KiB
Dart
65 lines
1.6 KiB
Dart
part of 'main.dart';
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class EntityViewPage extends StatefulWidget {
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EntityViewPage({Key key, this.entity}) : super(key: key);
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Entity entity;
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@override
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_EntityViewPageState createState() => new _EntityViewPageState();
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}
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class _EntityViewPageState extends State<EntityViewPage> {
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String _title;
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Entity _entity;
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String _lastState;
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StreamSubscription _stateSubscription;
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@override
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void initState() {
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super.initState();
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_entity = widget.entity;
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_lastState = _entity.state;
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if (_stateSubscription != null) _stateSubscription.cancel();
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_stateSubscription = eventBus.on<StateChangedEvent>().listen((event) {
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setState(() {
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if (event.entityId == _entity.entityId) {
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_lastState = event.newState ?? _entity.state;
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}
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});
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});
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_prepareData();
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}
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_prepareData() async {
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_title = _entity.displayName;
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}
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@override
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Widget build(BuildContext context) {
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return new Scaffold(
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appBar: new AppBar(
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leading: IconButton(icon: Icon(Icons.arrow_back), onPressed: (){
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Navigator.pop(context);
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}),
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: new Text(_title),
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),
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body: Padding(
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padding: EdgeInsets.all(10.0),
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child: ListView(
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children: <Widget>[
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_entity.buildExtendedWidget(context, _lastState)
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],
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),
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),
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);
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}
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@override
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void dispose(){
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if (_stateSubscription != null) _stateSubscription.cancel();
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super.dispose();
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}
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} |