Question

I’m looking into a fairly simple mechanism for caching and and currently using NSCache (for the reason of memory management). Question is – does the cache persist between launches? It seems like no to me.

I get objects put in cache just fine and can take them out of the cache while the app is running no problem. But once I relaunch, seems like the cache is gone.

So is there a way to make the cache persist between launches? If so, how would you re-sync the cache from previous session to the current?

Answer 1

NSCache does not persist between launches- if you’d like to save the cache, I’d recommend simply saving the data using CoreData– although if memory management is an issue, then perhaps you’d be saving too much. It truly depends on what you’re developing.