code: public static void load(String imageUrl, ImageView imageView, int dummyDrawable, int errorDrawable) {
          Drawable dummy = QuickUtils.getContext().getResources().getDrawable(dummyDrawable);
          Drawable error = QuickUtils.getContext().getResources().getDrawable(errorDrawable);
  
          load(imageUrl, imageView, new ImageLoaderHandler(imageView, imageUrl, error), dummy, error);
      }
docs: Triggers the image loader for the given image and view and sets a dummy image while waiting
  for the download to finish. The image loading will be performed concurrently to the UI main
  thread, using a fixed size thread pool. The loaded image will be posted back to the given
  ImageView upon completion.
  
  @param imageUrl      the URL of the image to download
  @param imageView     the ImageView which should be updated with the new image
  @param dummyDrawable the Drawable set to the ImageView while waiting for the image to be downloaded
  @param errorDrawable the Drawable set to the ImageView if a download error occurs