How To Clear Image cache or any cache in AFNetworking?

Question

Hi All can any one help me out how to clear the cache in AFNetworking.

I used to have old version of AFNetworking and i see that it has been updated, Can any body help m

Answer 1

If you're using AFNetworking, I recently implemented a little workaround to remove the image from the cache.

Look in the file "UIImageView+AFNetworking.h"

Under @interface UIImageView (AFNetworking), add the following:

- (void)clearImageCacheForURL:(NSURL *)url;

And Under @protocol AFImageCache, add:

- (void)clearCachedRequest:(NSURLRequest *)request;

Next, open "UIImageView+AFNetworking.m"

Under @implementation UIImageView (AFNetworking), add the following:

- (void)clearImageCacheForURL:(NSURL *)url {
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    [request addValue:@"image/*" forHTTPHeaderField:@"Accept"];

    UIImage *cachedImage = [[[self class] sharedImageCache] cachedImageForRequest:request];
    if (cachedImage) {
        [[[self class] sharedImageCache] clearCachedRequest:request];
    }
}

Almost done! Now just add the following below @implementation AFImageCache:

- (void)clearCachedRequest:(NSURLRequest *)request {
    if (request) {
        [self removeObjectForKey:AFImageCacheKeyFromURLRequest(request)];
    }
}

And you're good to go! Now when you need to clear a particular image url from the cache, just call [imageView clearImageCacheForURL:imgURL];