private class FetchDrawableTask extends AsyncTask<Void, Void, Void> {
        private ImageView imageView;
        private Image image;
        private boolean isQueued = false;

        public FetchDrawableTask(final ImageView imageView, final Image image) {
            Log.v("DEBUG", "call from: FetchDrawableTask()");
            this.imageView = imageView;
            this.image = image;
        }

        @Override
        protected Void doInBackground(Void... voids) {
            if (!isQueued) {
                isQueued = true;
                final ImagesDownloadHelper.Callback callback = new ImagesDownloadHelper.Callback() {
                    @Override
                    public void onLoad(final Image image, final Drawable drawable) {
                        if (null != drawable) {
                            imageView.setImageDrawable(drawable);
                        }
                    }

                    @Override
                    public void onFailure(final Image image) {

                    }
                };
                AltMedsXL.mImagesDownloadHelper.fetchDrawable(image, callback);
            }
            return null;
        }
    }