flutter/lib/location/current_location.dart

import 'package:geolocator/geolocator.dart';
import 'package:latlong2/latlong.dart';

class CurrentLocation {
  Future<LatLng?> resolve() async {
    final serviceEnabled = await Geolocator.isLocationServiceEnabled();
    if (!serviceEnabled) {
      return null;
    }

    final permission = await _resolvePermission();
    if (permission != LocationPermission.whileInUse &&
        permission != LocationPermission.always) {
      return null;
    }

    final position = await Geolocator.getCurrentPosition(
      locationSettings: const LocationSettings(accuracy: LocationAccuracy.high),
    );

    return LatLng(position.latitude, position.longitude);
  }

  Future<LocationPermission> _resolvePermission() async {
    final permission = await Geolocator.checkPermission();
    if (permission != LocationPermission.denied) {
      return permission;
    }

    return Geolocator.requestPermission();
  }
}