Does NSURLConnection take advantage of NSURLCache?

Question

I\'m trying to figure out how to use the URL loading framework to load URLs taking advantage of caching.

I am using NSURLConnections and feeding them NSURLRequests.

Answer 1

NOTE iOS 5 onwards provide a sharedURLCache that has both memory and disk capacity.

Nothing will cache unless you set the NSURLCache to have some capacity:

// A 10MB cache. This a good avatar-image-cache size but might be too 
// large for your app's memory requirements. YMMV.
[[NSURLCache sharedURLCache] setMemoryCapacity:1024*1024*10];

The default iPhone NSURLCache instance refuses to ever cache to disk. if you need this behaviour you must sub-class NSURLCache and implement your own disk cache. I have found numerous examples of disk caches on GitHub, though none of them do the entirely necessary "prune" step satisfactorily IMHO.