This is a demonstration of the MIT Mobile Experience Lab's AndroidImageCache library.

This is an image download-and-cacher that also knows how to efficiently generate and retrieve thumbnails of various sizes.

Features

easily integrates into content-provider backed applications, providing an adapter that can read local and web URLs from a cursor
automatic generation and caching of multiple sizes of images based on one downloaded asset
provides a disk cache as well as a memory cache
designed to work with your existing setup: no extending a custom application or activity needed
cursor adapter supports multiple image fields for each ImageView; skips fields that are null or empty
cursor adapter has an automatic progress bar when loading the cursor