code: public void getIntersectingSprites (List<Sprite> list, Shape shape)
      {
          int size = _sprites.size();
          for (int ii = 0; ii < size; ii++) {
              Sprite sprite = _sprites.get(ii);
              if (sprite.intersects(shape)) {
                  list.add(sprite);
              }
          }
      }
docs: When an animated view processes its dirty rectangles, it may require an expansion of the
  dirty region which may in turn require the invalidation of more sprites than were originally
  invalid. In such cases, the animated view can call back to the sprite manager, asking it to
  append the sprites that intersect a particular region to the given list.
  
  @param list the list to fill with any intersecting sprites.
  @param shape the shape in which we have interest.