Is there a way to clear the cache used by UIImage class?

Question

It is well known that UIImage caches its image data when the image is loaded using the imageNamed: method.

From apple documentation: https://developer.a

Answer 1

There is no way I know of to manually clear this iOS managed cache. In general, this is a red herring. When the os manages something for you, you don't need to worry about it. As long as you are correctly releasing anything you alloc/retain and handling memory warnings appropriately you're doing your part.

Answer 2

Maybe we have more then one methods for delete cached images, but i think you can used self.cache.removeAllObjects() which is one of the more methods if you use Cache() object.If i am wrong everybody can corrected me

Answer 3

The cache will be emptied when it needs to be, i.e. when the application receives a Low Memory Warning. There is no reason for you to do this yourself, and there is no public API available.

Answer 4

Answer taken from Kevin Low comment

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If you can use private APIs (as in an AdHoc only app, for example) use this UIImage method to remove all images from cache

[UIImage _flushSharedImageCache];