This is the example of https://github.com/PG-MANA/TilePhotoView
Please see the above link to know how to use TilePhotoView.
You can see how this works at https://soft.taprix.org/web/tile_photo_view/
This software is released under the MIT License, see LICENSE.
This project includes PhotoSwipe, Please See https://github.com/dimsemenov/PhotoSwipe/blob/master/LICENSE