I have an app that downloads and displays a lot of images from parse. An image is added to the database almost every minute. Since PFFile is automatically cached with no expiration date, even though I only need to display recent images, the older images still stay in cache thus occupying a lot of storage space. Because of this now the app takes about 5GB of storage on my iPhone. I have been doing a lot of research on this issue and found out that Parse does not have a public api for cleaning up PFFile Cache and also it doesn't allow setting expiration date on the cached files. Is there a workaround on this where I could manually delete older cache data?
Thank you in advance.
Per this answer from Hector: https://www.parse.com/questions/pffile-cache-size you can manually clear your applications ~/Library/Caches folder if you are insistent upon it. However, I'm fairly certain this will also impact things like NSURL/AFNetworking caches, amongst others.
My suggestion? Don't use PFFile to download the file. PFFile gives you back the remote URL to where it's hosted on Parse's site, so you can pass that to something like AFNetworking or NSURLSession to actually download the image for you, and then you can then assign cache lifetimes (or manage it yourself) since those systems actually support that, unlike PFFile.