How to configure the cache when using AFNetworking's setImageWithURL

Question

I\'m using setImageWithURL to download some images in my app. Is it possible:

1. to specify how long this image must be held in cache (eg 1 week)?
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Answer 1

The UIImageView category uses an internal, ephemeral cache for high performance in things like UITableView. For longer-term cache, use the system-level cacheing system--namely Peter Steinberger's fork of SDURLCache, a subclass of NSURLCache.

Set it up with the following code in the application delegate applicationDidFinishLaunching:withOptions::

SDURLCache *URLCache = [[SDURLCache alloc] initWithMemoryCapacity:1024*1024*2 diskCapacity:1024*1024*20 diskPath:[SDURLCache defaultCachePath]];
[URLCache setIgnoreMemoryOnlyStoragePolicy:YES];
[NSURLCache setSharedURLCache:URLCache];
[URLCache release];