I want an image loading and caching library for iOS that
- loads images asynchronously,
- caches images, with a configurable cache size and LRU behaviour,
- checks to see if images have been updated, using HTTP HEAD,
- doesn't cache anything in the event of an error code or an invalid image.
I've looked at HJCache, but it only satisfies the first two of these criteria. Is there something better?
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