Current Location is Lagging on Google Map

Questions/Help
,
#1

I am trying to show Google Map in my application but when the current location is shown the current location pin is lagging on the map.

So what happens it, I am sitting in one place and when I open the app it shows my current location but after 2-3 seconds the current location pin moves by itself on the map, and as a result my track breaks.

  • The goal is to draw a track from my current location and it should not break due to the lagging of my current location.

Can anyone help me for this issue. I am using location package to get the current location.

My Code:

void initState() {
    // TODO: implement initState
    super.initState();

    Future.delayed(new Duration(seconds: 2), () {
      initPlatformState();
    });
  }

initPlatformState() async {
    print('TRACK initPlatformState clled');
    if (Platform.isIOS) {
      if (await Globals.checkLocationPermission(context: context)) {
        _locationService = new Location();
        await _locationService.changeSettings(
            accuracy: LocationAccuracy.HIGH,
            interval: 1000,
            distanceFilter: 10);
        locationSubscription = await _locationService
            .onLocationChanged()
            .listen((LocationData result) async {
          print('result.latitude is ${result.latitude}');
          final GoogleMapController controller = await mapController;
          print('controller is $controller');
          controller.moveCamera(CameraUpdate.newCameraPosition(CameraPosition(
            target: LatLng(result.latitude, result.longitude) == null
                ? LatLng(0, 0)
                : LatLng(result.latitude, result.longitude),
            zoom: mapController.cameraPosition.zoom,
          )));

          if (mounted) {
            setState(() {
              currentLocation = result;
              retriveLocation = true;
            });
          }
        });
      } else {
        retriveLocation = true;
      }
    } else {
      bool _permission = false;
      _locationService = new Location();
      await _locationService.changeSettings(
          accuracy: LocationAccuracy.HIGH, interval: 1000, distanceFilter: 10);
      try {
        bool serviceStatus = await _locationService.serviceEnabled();
        print("Service status: $serviceStatus");
        if (serviceStatus) {
          print("Permission: $_permission");
          locationSubscription = await _locationService
              .onLocationChanged()
              .listen((LocationData result) async {
            final GoogleMapController controller = await mapController;
            controller.moveCamera(CameraUpdate.newCameraPosition(CameraPosition(
              target: LatLng(result.latitude, result.longitude) == null
                  ? LatLng(0, 0)
                  : LatLng(result.latitude, result.longitude),
              zoom: mapController.cameraPosition.zoom,
            )));

            if (mounted) {
              setState(() {
                currentLocation = result;
                retriveLocation = true;
              });
            }
          });
        } else {
          bool serviceStatusResult = await _locationService.requestService();
          print("Service status activated after request: $serviceStatusResult");
          if (serviceStatusResult) {
            await initPlatformState();
          }
        }
      } on PlatformException catch (e) {
        print(e);
        if (e.code == 'PERMISSION_DENIED') {
          error = e.message;
        } else if (e.code == 'SERVICE_STATUS_ERROR') {
          error = e.message;
        }
      }
    }
    setState(() {});
  }
#2

Hello and welcome.

If you could show your code it would be easier to inspect your problem and maybe help in solving it.

Please remember to properly format it, pasting it between two triple back-tips lines, like:

```dart
< your code here >
```