Android -- Dynamically Adding Items to Gallery Adapter

I've seen the use of media scanners to dynamically add items from the sd card to a gallery but I'm in need of adding content from the web.

I have a large quantity of images to di开发者_Python百科splay and I want to load 5 to start with and have a "load more" button at the end. This button will add 5 more images to the end of the gallery and keep the original 5 as well as keep the "load more" button at the end.