在Android Studio中使用Java实现后台服务获取当前位置

此前已在MapsActivity中成功实现获取当前位置并在地图上显示的功能，但将位置获取代码迁移至后台服务MyService后，功能无法正常运行。以下是之前可用的MapsActivity代码：

public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

private GoogleMap mMap;

private LocationManager manager;

private LocationListener listener;

private static final int LOCATION_PERMISSIONS_REQUEST_CODE = 3;

private MyService myService;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    binding = ActivityMapsBinding.inflate(getLayoutInflater());
    setContentView(binding.getRoot());
   

    // Obtain the SupportMapFragment and get notified when the map is ready to be used.
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.GoogleMap);
    mapFragment.getMapAsync(this);


    manager = (LocationManager) getSystemService(LOCATION_SERVICE);
    listener = new LocationListener() {
        @Override
        public void onLocationChanged(@NonNull Location location) {
            if(mMap!=null) {
                LatLng currentLocation = new LatLng(location.getLatitude(), location.getLongitude());
                mMap.addMarker(new MarkerOptions().position(currentLocation));
                mMap.moveCamera(CameraUpdateFactory.newLatLng(currentLocation));

            }

        }
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {
        }
        @Override
        public void onProviderEnabled(String provider) {
        }
        @Override
        public void onProviderDisabled(String provider) {
        }

    };
    getLocation();

    //initialize start and cancel button
    findViewById(R.id.startButton).setOnClickListener(view -> {
        
        Intent intent = new Intent();
        intent.setClass(getApplicationContext(), MyService.class);
        //startService(intent);
       

    });

    findViewById(R.id.cancelButton).setOnClickListener(view -> {
       
        Intent serviceIntent = new Intent(this, MyService.class);
        //stopService(serviceIntent);

        //return back to main activity
        Intent mainActivity = new Intent(this, MainActivity.class);
        startActivity(mainActivity);
    });
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (requestCode==LOCATION_PERMISSIONS_REQUEST_CODE) {
        int count =0;
        for(String permission: permissions) {
            if(permission==android.Manifest.permission.ACCESS_FINE_LOCATION){
                if(grantResults[count]==PackageManager.PERMISSION_GRANTED){
                    getLocation();
                }
            }
            count++;
        }
    }
}



private void getLocation() {
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
        manager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 50, listener);
    } else {
        Toast.makeText(this, "Location permission is denied, please allow the permission", Toast.LENGTH_LONG).show();
        requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION},LOCATION_PERMISSIONS_REQUEST_CODE);

    }
}

@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    getLocation();     
     
}

内容的提问来源于stack exchange，提问作者Nafsika