You can watch this episode by subscribing to Cocoacasts Plus.

Image Caching in Swift

Limiting the Cache on Disk

Earlier in this series, you learned that a cache on disk has a number of benefits. It persists the cache across launches and it can be used to seed a cache in memory. Even though modern devices have plenty of disk space, we need to be mindful of the space the cache on disk takes up on the user's device. Applications like Twitter and Instagram fetch hundreds if not thousands of images. Even if those images are optimized and small in size, the cache on disk can grow quickly, taking up a non-trivial amount of space on the user's device. In this episode, we add the ability to limit the size of the cache on disk, similar to how the image service limits the size of the cache in memory.

Instant and Unlimited Access
to 500+ Cocoacasts Tutorials

Monthly

$19 / month

Pay Once a Month
30 Day Money Back Guarantee

Yearly

$8.25 / month (billed annually)

Pay Once a Year and Save $129
30 Day Money Back Guarantee