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22 changes: 17 additions & 5 deletions lib/full_version/main.dart
Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,12 @@ class _MyHomePageState extends State<MyHomePage> {
stream.listen((place) => setState(() => placeList.add(place)));
}

_removePlace(places.Place place) {
if(placeList.contains(place)) {
setState(() => placeList.remove(place));
}
}

@override
initState() {
super.initState();
Expand All @@ -53,15 +59,18 @@ class _MyHomePageState extends State<MyHomePage> {
title: new Text(widget.title),
),
body: new ListView(
children: placeList.map((place) => new PlaceWidget(place)).toList(),
children: placeList.map((place) => new PlaceWidget(place, _removePlace)).toList(),
),
);
}
}

typedef PlaceRemover(places.Place place);

class PlaceWidget extends StatelessWidget {
PlaceWidget(this.place);
PlaceWidget(this.place, this.removePlace);
final places.Place place;
final PlaceRemover removePlace;

@override
Widget build(BuildContext context) {
Expand All @@ -80,9 +89,12 @@ class PlaceWidget extends StatelessWidget {

return new Dismissible(
key: new Key(place.name),
onDismissed: (dir) => dir == DismissDirection.startToEnd
? print('You favorited ${place.name}!')
: print('You dismissed ${place.name} ...'),
onDismissed: (dir) {
dir == DismissDirection.startToEnd
? print('You favorited ${place.name}!')
: print('You dismissed ${place.name} ...');
removePlace(place);
},
background: new Container(
color: Colors.green,
),
Expand Down