code: public boolean queryCache(ImageTask imageTask, CubeImageView imageView) {
          if (null == mImageProvider) {
              return false;
          }
          BitmapDrawable drawable = mImageProvider.getBitmapFromMemCache(imageTask);
  
          if (imageTask.getStatistics() != null) {
              imageTask.getStatistics().s0_afterCheckMemoryCache(drawable != null);
          }
          if (drawable == null) {
              return false;
          }
  
          if (DEBUG) {
              CLog.d(LOG_TAG, MSG_HIT_CACHE, imageTask, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
          }
          imageTask.addImageView(imageView);
          imageTask.onLoadTaskFinish(drawable, mImageLoadHandler);
          return true;
      }
docs: Check weather this imageTask has cache Drawable data.