问如何在Android中使用后台服务为网络提供商获取更新位置？

EN

LocationManager locationManager; 

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

        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);     
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, this);
    }

    @Override
    public void onLocationChanged(Location location) {

        Log.i("location...","...latt"+location.getLatitude()+"longg..."+location.getLongitude());
        String my_latitude = String.valueOf(location.getLatitude());
        String my_longitude = String.valueOf(location.getLongitude());
    }