code added to get the location for gms hms and iphone. fallback added if the last known location is null.

lib/core/app_state.dart

@@ -133,5 +133,10 @@ class AppState {
     _userRegistrationPayload = value;
   }
 
+  ///this will be called if there is any problem in getting the user location
+  void resetLocation(){
+    userLong = 0.0;
+    userLong = 0.0;
+  }
 
 }

lib/core/dependencies.dart

@@ -158,7 +158,8 @@ class AppDependencies {
         bookAppointmentsRepo: getIt(),
         errorHandlerService: getIt(),
         navigationService: getIt(),
-        myAppointmentsViewModel: getIt()
+        myAppointmentsViewModel: getIt(),
+        locationUtils: getIt()
       ),
     );
 

lib/core/location_util.dart

@@ -1,12 +1,23 @@
 import 'dart:io';
+import 'dart:ui';
 
 import 'package:geolocator/geolocator.dart';
+import 'package:gms_check/gms_check.dart';
 import 'package:google_maps_flutter/google_maps_flutter.dart';
 import 'package:hmg_patient_app_new/core/app_state.dart';
 import 'package:hmg_patient_app_new/core/cache_consts.dart';
 import 'package:hmg_patient_app_new/core/utils/utils.dart';
 import 'package:hmg_patient_app_new/services/navigation_service.dart';
-import 'package:permission_handler/permission_handler.dart';
+import 'package:huawei_location/huawei_location.dart' as HmsLocation
+    show
+        FusedLocationProviderClient,
+        Location,
+        LocationSettingsRequest,
+        LocationRequest;
+import 'package:location/location.dart'
+    show Location, PermissionStatus, LocationData;
+import 'package:permission_handler/permission_handler.dart'
+    show Permission, PermissionListActions, PermissionStatusGetters;
 
 class LocationUtils {
   NavigationService navigationService;
@@ -16,6 +27,7 @@ class LocationUtils {
   bool isShowLocationTimeoutDialog;
   bool isHuawei;
   final GeolocatorPlatform _geolocatorPlatform = GeolocatorPlatform.instance;
+  Future<bool?>? isGMSDevice;
 
   LocationUtils({
     required this.isShowConfirmDialog,
@@ -23,49 +35,62 @@ class LocationUtils {
     required this.appState,
     this.isHuawei = false,
     this.isShowLocationTimeoutDialog = true,
-  });
+  }) {
-
+    isGMSDevice = GmsCheck().checkGmsAvailability();
-  void getCurrentLocation({Function(LatLng)? callBack}) async {
+  }
-    Geolocator.isLocationServiceEnabled().then((value) async {
-      if (value) {
-        await Geolocator.checkPermission().then((permission) async {
-          if (permission == LocationPermission.always || permission == LocationPermission.whileInUse) {
-            Geolocator.getLastKnownPosition().then((value) {
-              setLocation(value);
-              if (callBack != null) callBack(LatLng(value?.latitude ?? 24.7101433, value?.longitude ?? 46.6757709));
-            }).catchError((err) {
-              if (isShowConfirmDialog && isShowLocationTimeoutDialog) {}
-            });
-          }
 
-          if (permission == LocationPermission.denied || permission == LocationPermission.deniedForever) {
+  void getLocation(
-            if (Platform.isAndroid) {
+      {Function(LatLng)? onSuccess, VoidCallback? onFailure}) async {
-              // Utils.showPermissionConsentDialog(context, TranslationBase.of(context).locationPermissionDialog, () async {
+    if (Platform.isIOS) {
-              final hasPermission = await _handlePermission();
+      getCurrentLocation(onFailure: onFailure, onSuccess: onSuccess);
-              if (hasPermission) {
+      return;
-                // Geolocator.getCurrentPosition(locationSettings: LocationSettings(accuracy: LocationAccuracy.medium, timeLimit: Duration(seconds: 5))).then((value) {
+    }
-                Geolocator.getLastKnownPosition().then((value) {
+
-                  setLocation(value);
+    if (await isGMSDevice ?? true) {
-                  if (callBack != null) callBack(LatLng(value?.latitude ?? 24.7101433, value?.longitude ?? 46.6757709));
+      getCurrentLocation(onFailure: onFailure, onSuccess: onSuccess);
-                });
+      return;
-              } else {
+    }
-                // if (isShowConfirmDialog) showErrorLocationDialog(false, failureCallBack: () {});
+
-              }
+    getHMSLocation(onFailure: onFailure, onSuccess: onSuccess);
-              // });
+  }
-            } else {
+
-              if (await Permission.location.request().isGranted) {
+  void getCurrentLocation(
-                getCurrentLocation(callBack: callBack);
+      {Function(LatLng)? onSuccess, VoidCallback? onFailure}) async {
-              } else {
+    var location = Location();
-                setZeroLocation();
+
-                if (isShowConfirmDialog) showErrorLocationDialog(false, failureCallBack: () {});
+    bool isLocationEnabled = await location.serviceEnabled();
-              }
+    //if the location service is not enabled, ask the user to enable it
-            }
+    if (!isLocationEnabled) {
-          }
+      isLocationEnabled = await location.requestService();
-        }).catchError((err) {});
+      if (!isLocationEnabled) {
-      } else {
+        appState.resetLocation();
-        if (isShowConfirmDialog) showErrorLocationDialog(false, failureCallBack: () {});
+        onFailure?.call();
+        return;
+      }
+    }
+
+    LocationPermission permissionGranted = await Geolocator.checkPermission();
+    if (permissionGranted == LocationPermission.denied) {
+      permissionGranted = await Geolocator.requestPermission();
+      if (permissionGranted != LocationPermission.whileInUse &&
+          permissionGranted != LocationPermission.always) {
+        appState.resetLocation();
+        onFailure?.call();
+        return;
       }
-    }).catchError((err) {});
+    }
+
+    Position? currentLocation = await Geolocator.getLastKnownPosition();
+
+    if(currentLocation?.latitude == null || currentLocation?.longitude == null){
+      currentLocation = await Geolocator.getCurrentPosition(
+          desiredAccuracy: LocationAccuracy.low);
+    }
+
+    LatLng locationData = LatLng(
+        currentLocation?.latitude ?? 0.0, currentLocation?.longitude ?? 0.0);
+    saveLatLngToAppState(locationData);
+    onSuccess?.call(locationData);
   }
 
   Future<bool> checkIfGPSIsEnabled() async {
@@ -166,4 +191,69 @@ class LocationUtils {
     ].request();
     return (result[Permission.location]!.isGranted || result[Permission.locationAlways]!.isGranted);
   }
+
+  void saveLatLngToAppState(LatLng locationData) {
+    appState.userLat = locationData.latitude;
+    appState.userLong = locationData.longitude;
+  }
+
+  void getHMSLocation(
+      {VoidCallback? onFailure, Function(LatLng p1)? onSuccess}) async {
+    try {
+      var location = Location();
+      HmsLocation.FusedLocationProviderClient locationService =
+          HmsLocation.FusedLocationProviderClient()..initFusedLocationService();
+
+      bool isLocationEnabled = await Geolocator.isLocationServiceEnabled();
+      //if the location service is not enabled, ask the user to enable it
+      if (!isLocationEnabled) {
+        HmsLocation.LocationRequest locationRequest =
+            HmsLocation.LocationRequest()
+              ..priority = HmsLocation.LocationRequest.PRIORITY_HIGH_ACCURACY;
+
+        HmsLocation.LocationSettingsRequest request =
+            HmsLocation.LocationSettingsRequest(
+          alwaysShow: true,
+          needBle: false,
+          requests: [locationRequest],
+        );
+
+        await locationService.checkLocationSettings(request);
+      }
+      LocationPermission permissionGranted = await Geolocator.checkPermission();
+      if (permissionGranted == LocationPermission.denied) {
+        permissionGranted = await Geolocator.requestPermission();
+        if (permissionGranted != LocationPermission.whileInUse &&
+            permissionGranted != LocationPermission.always) {
+          appState.resetLocation();
+          onFailure?.call();
+          return;
+        }
+      }
+
+      HmsLocation.Location data = await locationService.getLastLocation();
+      if (data.latitude == null || data.longitude == null) {
+        appState.resetLocation();
+        HmsLocation.LocationRequest request = HmsLocation.LocationRequest()
+          ..priority = HmsLocation.LocationRequest.PRIORITY_HIGH_ACCURACY
+          ..interval = 1000 // 1 second
+          ..numUpdates = 1;
+        locationService.requestLocationUpdates(request);
+        locationService.onLocationData?.listen((location) {
+          data = location;
+          if (data.latitude == null || data.longitude == null) {
+            appState.resetLocation();
+            onFailure?.call();
+            return;
+          }
+          saveLatLngToAppState(
+              LatLng(data.latitude ?? 0.0, data.longitude ?? 0.0));
+        });
+      }
+      saveLatLngToAppState(LatLng(data.latitude ?? 0.0, data.longitude ?? 0.0));
+    } catch (e) {
+      appState.resetLocation();
+      onFailure?.call();
+    }
+  }
 }

lib/features/book_appointments/book_appointments_view_model.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:hmg_patient_app_new/core/app_state.dart';
 import 'package:hmg_patient_app_new/core/cache_consts.dart';
 import 'package:hmg_patient_app_new/core/dependencies.dart';
+import 'package:hmg_patient_app_new/core/location_util.dart';
 import 'package:hmg_patient_app_new/core/utils/date_util.dart';
 import 'package:hmg_patient_app_new/core/utils/doctor_response_mapper.dart';
 import 'package:hmg_patient_app_new/core/utils/loading_utils.dart';
@@ -37,6 +38,8 @@ class BookAppointmentsViewModel extends ChangeNotifier {
 
   int initialSlotDuration = 0;
 
+  LocationUtils locationUtils;
+
   List<GetClinicsListResponseModel> clinicsList = [];
   List<GetClinicsListResponseModel> _filteredClinicsList = [];
 
@@ -74,7 +77,9 @@ class BookAppointmentsViewModel extends ChangeNotifier {
   bool shouldLoadSpecificClinic = false;
   String? currentlySelectedHospitalFromRegionFlow;
 
-  BookAppointmentsViewModel({required this.bookAppointmentsRepo, required this.errorHandlerService, required this.navigationService, required this.myAppointmentsViewModel});
+  BookAppointmentsViewModel({required this.bookAppointmentsRepo, required this.errorHandlerService, required this.navigationService, required this.myAppointmentsViewModel, required this.locationUtils}) {;
+    initBookAppointmentViewModel();
+  }
 
   void initializeFilteredList() {
     _filteredClinicsList = List.from(clinicsList);
@@ -97,6 +102,7 @@ class BookAppointmentsViewModel extends ChangeNotifier {
     isDoctorProfileLoading = true;
     clinicsList.clear();
     doctorsList.clear();
+    // getLocation();
     notifyListeners();
   }
 
@@ -408,10 +414,10 @@ class BookAppointmentsViewModel extends ChangeNotifier {
 
   Future<void> getRegionMappedProjectList() async {
     //todo handle the case in the location is switch on
-    if(hospitalList != null && hospitalList!.registeredDoctorMap != null && hospitalList!.registeredDoctorMap!.isNotEmpty){
+    // if(hospitalList != null && hospitalList!.registeredDoctorMap != null && hospitalList!.registeredDoctorMap!.isNotEmpty){
-      filteredHospitalList = hospitalList;
+    //   filteredHospitalList = hospitalList;
-      return;
+    //   return;
-    }
+    // }
     isRegionListLoading = true;
     notifyListeners();
     final result = await bookAppointmentsRepo.getProjectList();
@@ -429,10 +435,8 @@ class BookAppointmentsViewModel extends ChangeNotifier {
             lat: _appState.userLat,
             lng: _appState.userLong,
           );
-          var lat = await Utils.getNumFromPrefs(CacheConst.userLat);
 
-          var lng = await Utils.getNumFromPrefs(CacheConst.userLong);
+          var isLocationEnabled = (_appState.userLat != 0) && (_appState.userLong != 0);
-          var isLocationEnabled = (lat != 0) && (lng != 0);
           hospitalList =
           await DoctorMapper.sortList(isLocationEnabled, hospitalList!);
 
@@ -480,15 +484,15 @@ class BookAppointmentsViewModel extends ChangeNotifier {
     notifyListeners();
   }
 
-  Future<bool> isLocationEnabled() async{
+  bool isLocationEnabled() {
-    return await Location().serviceEnabled();
+    return _appState.userLong != 0.0 && _appState.userLong != 0.0;
   }
 
-  bool getLocationStatus() {
+  // bool getLocationStatus() {
-    bool isLocationAvaiable =  false;
+  //   bool isLocationAvaiable =  false;
-    isLocationEnabled().then((value) => isLocationAvaiable = value);
+  //   isLocationEnabled().then((value) => isLocationAvaiable = value);
-    return isLocationAvaiable;
+  //   return isLocationAvaiable;
-  }
+  // }
 
   void setLoadSpecificClinic(bool status) {
     shouldLoadSpecificClinic = status;
@@ -518,4 +522,9 @@ class BookAppointmentsViewModel extends ChangeNotifier {
   void resetFilterList(){
     filteredHospitalList = hospitalList;
   }
+
+
+  void getLocation(){
+    locationUtils.getLocation();
+  }
 }

lib/main.dart

@@ -132,6 +132,7 @@ void main() async {
             errorHandlerService: getIt(),
             navigationService: getIt(),
             myAppointmentsViewModel: getIt(),
+            locationUtils: getIt(),
           ),
         ),
         ChangeNotifierProvider<AuthenticationViewModel>(

lib/presentation/appointments/widgets/appointment_checkin_bottom_sheet.dart

@@ -51,7 +51,7 @@ class AppointmentCheckinBottomSheet extends StatelessWidget {
           //   navigationService: myAppointmentsViewModel.navigationService,
           //   appState: myAppointmentsViewModel.appState,
           // );
-          locationUtils.getCurrentLocation(callBack: (value) {
+          locationUtils.getCurrentLocation(onSuccess: (value) {
             projectDetailListModel = Utils.getProjectDetailObj(_appState, patientAppointmentHistoryResponseModel.projectID);
             double dist = Utils.distance(value.latitude, value.longitude, double.parse(projectDetailListModel.latitude!), double.parse(projectDetailListModel.longitude!)).ceilToDouble() * 1000;
             print(dist);

lib/presentation/appointments/widgets/hospital_bottom_sheet/hospital_bottom_sheet_body.dart

@@ -93,7 +93,7 @@ class HospitalBottomSheetBody extends StatelessWidget {
                     ?.hmcDoctorList?[index];
                 return HospitalListItem(
                 hospitalData: hospital,
-                isLocationEnabled: appointmentsViewModel.getLocationStatus(),
+                isLocationEnabled: appointmentsViewModel.isLocationEnabled(),
               ).onPress(() {
                 regionalViewModel.setHospitalModel(hospital);
                 regionalViewModel.setBottomSheetState(AppointmentViaRegionState.CLINIC_SELECTION);

lib/presentation/book_appointment/book_appointment_page.dart

@@ -44,6 +44,7 @@ class _BookAppointmentPageState extends State<BookAppointmentPage> {
   void initState() {
     scheduleMicrotask(() {
       bookAppointmentsViewModel.initBookAppointmentViewModel();
+      bookAppointmentsViewModel.getLocation();
     });
     super.initState();
   }

pubspec.yaml

@@ -83,6 +83,8 @@ dependencies:
   family_bottom_sheet: ^0.1.0
 
   location: ^8.0.1
+  gms_check: ^1.0.4
+  huawei_location: ^6.14.2+301
 
 dev_dependencies:
   flutter_test: