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Our iOS developer, use a custom cache for HTTP image request.
But as I know that HTTP protocol has it own cache control. But I can’t convince the client team, they said the network transfer is too much.
So, does iOS http layer support HTTP cache headers?
No, you can’t rely directly on this for images, especially if you want your cache to persist over app launches, etc. You’d have better to use a networking framework which offers both caching options and image additions :
AFNetworking offers both with a convenient UIImageView additions (setImageURL: on UIImageView, with placeholder support, etc).
MKNetworkKit