code: public static void getBitmapByImageURL(String imageURL, final OnEventListener callback) {
  
          new DownloadImageTask<Bitmap>(imageURL, new OnEventListener<Bitmap>() {
  
              @Override
              public void onSuccess(Bitmap bitmap) {
                  callback.onSuccess(bitmap);
              }
  
              @Override
              public void onFailure(Exception e) {
                  callback.onFailure(e);
              }
          }).execute();
  
      }
docs: Get a bitmap by a given URL
  
  @param imageURL given URL
  @param callback callback