Does NSURLConnection take advantage of NSURLCache?

Question

I\'m trying to figure out how to use the URL loading framework to load URLs taking advantage of caching.

I am using NSURLConnections and feeding them NSURLRequests.

Answer 1

It will indeed use NSURLCache automatically, at least in some circumstances. Certainly it does in the following code:

EDIT - works in a OS X 10.6 Cocoa app, not iPhone (misread question)

#import 

int main (int argc, const char * argv[]) {

    // run request with default cache policy
 NSMutableURLRequest *req=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://en.wikipedia.org/"]];
 NSData *data=[NSURLConnection sendSynchronousRequest:req returningResponse:nil error:nil];
 NSLog(@"Received %d bytes", [data length]);

 sleep(10);

    // now run it asking it to use the cache
 [req setCachePolicy:NSURLRequestReturnCacheDataElseLoad];
 data=[NSURLConnection sendSynchronousRequest:req returningResponse:nil error:nil];
 NSLog(@"Received %d bytes", [data length]);

    return 0;
}