新しい要素（場所）がデータベースに追加されるたびに以下のlistViewを更新しようとしていますが、アプリを閉じて再度開いたときにのみ更新されますが、ユーザーがLocationHistoryページに移動したときは更新されません
class LocationHistory extends StatefulWidget {
@override
_LocationHistoryState createState() => _LocationHistoryState();
}
class _LocationHistoryState extends State<LocationHistory> {
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
leading: new IconButton(
icon: Icon(Icons.arrow_back),
onPressed: () => Navigator.of(context).pop(),
),
title: Text("Saved Locations"),
),
body: Consumer<LocationHistoryModel>(
builder: (context, locationHistoryModel, child){
return ListView.builder(
itemCount: locationHistoryModel.currentUserLocations.length,
itemBuilder: (context, index) =>
Column(
children: <Widget>[
buildListTile(
address: locationHistoryModel
.currentUserLocations[index].address,
createdAt: locationHistoryModel
.currentUserLocations[index].createdAt,
inOut: locationHistoryModel
.currentUserLocations[index].inOut,
),
],
)
);}
),);
}
}
私がnotifyListenersを使用してリストを再構築するように通知するlocationHistoryModel
class LocationHistoryModel extends ChangeNotifier{
final locationHistory = LocationHistoryRep();
List currentUserLocations =[];
User _user;
set user(User value) {
_user = value;
}
User get user => _user;
LocationHistoryModel () {
getLocationHistory();
}
getLocationHistory() async{
var locationsHistory = await locationHistory.getAllSavedLocations();
List allUsersLocations = locationsHistory["data"] ;
for(int i =0; i<allUsersLocations.length;i++){
if(allUsersLocations[i]["userId"]==_user.id){
currentUserLocations.add(LocationElement.fromJson(allUsersLocations[i]));
}
}
notifyListeners();
return currentUserLocations;
}
setLocation({String address, String inOut}) async{
await locationHistory.addCurrentLocation(address: address,inOut: inOut,userId: _user.id);
notifyListeners();
}
リストに移動したときにここでリストを更新しようとするウィジェットから変更が見つかりません
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
GoogleMapController mapController;
void _onMapCreated(GoogleMapController controller) {
mapController = controller;
}
@override
void initState() {
super.initState();
Provider.of<AuthModel>(context, listen: false).getUser();
}
@override
Widget build(BuildContext context) {
Size size = MediaQuery.of(context).size;
final location = Provider.of<Location>(context);
final locationHistory = Provider.of<LocationHistoryModel>(context);
return location.currentLocation == null ? Scaffold(body: CircularIndicator()): Scaffold(
appBar: AppBar(
centerTitle: true,
backgroundColor: Colors.orange,
title: Center(child: Text('Remote Tracker')),
),
),
floatingActionButton: new FloatingActionButton(
backgroundColor: Colors.orange,
child: const Icon(Icons.location_on),
onPressed: () async{
showDialog(context: context,
builder: (BuildContext context){
return AdvanceCustomAlert(
location.address,
() async{
await locationHistory.setLocation(address: location.address,inOut: "out");
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => LocationHistory(),
// here when navigating to LocationHistory the list is not updating
));
},
() async{
await locationHistory.setLocation(address: location.address,inOut: "in");
Navigator.of(context).pop();
},
);
}
);// Add your onPressed code here!
},
),
floatingActionButtonLocation:
FloatingActionButtonLocation.centerFloat,
bottomNavigationBar: new BottomAppBar(
color: Colors.white,
),
body: Container(
width: size.width,
height: size.height,
child: Stack(
alignment: Alignment.centerRight,
children: <Widget>[
GoogleMap(
onMapCreated: _onMapCreated,
myLocationEnabled: true,
initialCameraPosition: CameraPosition(
target: LatLng(location.currentLocation.latitude,location.currentLocation.longitude),
zoom: 14.0,
),
),
],
),
),
);
}
}