iOS, NSURLConnection: Delegate Callbacks on Different Thread?

Question

How can I get NSURLConnection to call it\'s delegate methods from a different thread instead of the main thread. I\'m trying to mess around with the scheduleInRunLoop:forMod

Answer 1

If you truly need to do the download in a new thread, it may be easier to detachNewThreadSelector:toTarget:withObject:, setup (and destroy) an NSAutoreleasePool, and then use one of the synchronous selectors like NSData's dataWithContentsOfURL:. This will not make use of the asynchronous NSURLConnectionDelegate.

Because this call is synchronous, it will not return until the file has been downloaded, which will block the main thread, but because you're in a new thread, it won't. Please note that this is typically discouraged behavior. Is there other code happening in the main thread that can be optimized?