Looking for a simple open source non-copyleft caching for Android (SDK 7+) class.

The purpose is primary to store the `Bitmap`s fetched asynchronously (so i don't need this functionality to be included in the cache class).

I was using a weakList for this purpose, that was naturally a bad solution, with Guava cache that is a little better but still not fine.

It's preferred that the cache is able to store any serializable `Object`, not just a `Bitmap`, and that i could easily purge the objects of certain tag used while the object is added to cache.

The best option would be to get the filesystem cache like wrapping the sqlite database.
It would be great if the cache would be cleared by `Settings >Manage Application > Clear Cache`