docs: private static void setImageViewScaleTypeMatrix(ImageView imageView) {
          /**
           * PhotoView sets its own ScaleType to Matrix, then diverts all calls
           * setScaleType to this.setScaleType automatically.
           */
          if (null != imageView && !(imageView instanceof IPhotoView)) {
              if (!ScaleType.MATRIX.equals(imageView.getScaleType())) {
                  imageView.setScaleType(ScaleType.MATRIX);
              }
          }
      }