I am trying to load a Google Map widget to coordinates whose latitude and longitude are saved as double variables in a custom object called AddressObject. In the edit_address.dart I want to initState call the camera position to the saved location's coordinates. Here, editingAddress is an instance of AddressObject. I am calling the getSavedLocation method in initState but the camera would be stuck at (0,0).

Relevant Codes:

class AddressObject {
  String personName;
  //String? type;
  String addressLine1;
  String addressLine2;
  String? landmark;
  String city;
  String state;
  String pinCode;
  bool isCurrentAddress;
  double latitude;
  double longitude;
  AddressObject({
    required this.personName,
    //this.type,
    required this.addressLine1,
    required this.addressLine2,
    this.landmark,
    required this.city,
    required this.state,
    required this.pinCode,
    required this.isCurrentAddress,
    required this.latitude,
    required this.longitude,
  });
}

edit_address.dart

GoogleMapController? _googleMapController;
CameraPosition _cameraPosition = CameraPosition(target: LatLng(0, 0));
LatLng _latlong = LatLng(0, 0);

Future<void> getSavedLocation() async {
    bool serviceEnabled;
    LocationPermission permission;

    serviceEnabled =
        await GeolocatorPlatform.instance.isLocationServiceEnabled();
    if (!serviceEnabled) {
      await GeolocatorPlatform.instance.openLocationSettings();
      return Future.error('Location services are disabled.');
    }

    permission = await GeolocatorPlatform.instance.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await GeolocatorPlatform.instance.requestPermission();
      if (permission == LocationPermission.denied) {
        return Future.error('Location permissions are denied');
      }
    }
    if (permission == LocationPermission.deniedForever) {
      return Future.error(
          'Location permissions are permanently denied, we cannot request permissions.');
    }

    // position = await GeolocatorPlatform.instance.getCurrentPosition(
    //     locationSettings:
    //         const LocationSettings(accuracy: LocationAccuracy.high));

    _latlong =
        LatLng(widget.editingAddress.latitude, widget.editingAddress.longitude);

    setState(() {
      _googleMapController!.animateCamera(CameraUpdate.newCameraPosition(
          CameraPosition(target: _latlong, zoom: 15)));
      getAddress();
      print(
          "${widget.editingAddress.latitude}, ${widget.editingAddress.longitude}");
      print("${_latlong.latitude}, ${_latlong.longitude}");
    });

    //return position;
  }

List<Placemark>? placeMarks;

  getAddress() async {
    placeMarks =
        await placemarkFromCoordinates(_latlong.latitude, _latlong.longitude);
    Placemark placemark = placeMarks![0];
    // _addressController.text =
    //     "${placemark.street}, ${placemark.subLocality}, ${placemark.locality}, ${placemark.subAdministrativeArea}, ${placemark.postalCode}, ${placemark.country}";
    _addressLine1Controller.text =
        "${placemark.street}, ${placemark.subThoroughfare}";
    _addressLine2Controller.text = "${placemark.thoroughfare}";
    _landmarkController.text = "${placemark.subThoroughfare}";
    _cityController.text = "${placemark.subLocality}";
    _stateController.text = "${placemark.administrativeArea}";
    _pinCodeController.text = "${placemark.postalCode}";
  }

@override
  void initState() {
    super.initState();
    getSavedLocation();
    _personNameController.text = widget.editingAddress.personName;
    _addressLine1Controller.text = widget.editingAddress.addressLine1;
    _addressLine2Controller.text = widget.editingAddress.addressLine2;
    _landmarkController.text = widget.editingAddress.landmark!;
    _cityController.text = widget.editingAddress.city;
    _stateController.text = widget.editingAddress.state;
    _pinCodeController.text = widget.editingAddress.pinCode;
  }

I'm having the following code inside Widget build:

SizedBox(
                    width: screenWidth,
                    height: screenHeight * 0.225,
                    child: GoogleMap(
                      initialCameraPosition: _cameraPosition,
                      onMapCreated: (controller) {
                        setState(() {
                          _googleMapController = controller;
                        });
                      },
                      markers: Set<Marker>.of(<Marker>[
                        Marker(
                          markerId: MarkerId("1"),
                          position: _latlong,
                          icon: BitmapDescriptor.defaultMarkerWithHue(
                              BitmapDescriptor.hueRed),
                        ),
                      ]),
                      onCameraMove: (CameraPosition cameraposition) async {
                        _cameraPosition = cameraposition;
                        _latlong = LatLng(cameraposition.target.latitude,
                            cameraposition.target.longitude);
                        getAddress();
                      },
                    ),
                  ),

What is wrong with my code that is preventing the google maps camera to load to the saved location coordinates and how to solve the problem?

CodePudding user response：

Issue resolved when I uncommented the following lines in the getSavedAddress method:

// position = await GeolocatorPlatform.instance.getCurrentPosition(
    //     locationSettings:
    //         const LocationSettings(accuracy: LocationAccuracy.high));