How to implement offline reading in my app
I would like to implement offline reading for a news application I have been developing on the iphone. I currently use SDURLCache and I can see the con开发者_Go百科tent is loaded from the disk but how can I find if there is already something in the cache for the given url without starting a new url connection?
or if there is some other way to do that please let me know.
thx
You might be able to do this:
NSData* cacheForUrl(NSString *aUrl) {
SDURLCache *cache = [[SDURLCache alloc] init];
NSCachedURLResponse *response = [cache cachedResponseForRequest:[NSUrlRequest requestWithURL:aUrl];
if(!response) {
return @"URL not in cache";
} //implicit else
return [response data];
}
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