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 want to perform downloads on a separate thread, I'm pretty sure these are the droids you're looking for...

- (void) dispatchRequest{
    self->finished = NO;
    NSMutableURLRequest* request = //Formulate your request
    NSThread* download_thread = [[NSThread alloc] initWithTarget:self selector:@selector(downloadThreadLoop:) object:request];
    [download_thread start];
}
- (void) downloadThreadLoop:(NSMutableURLRequest*) request{

    NSURLConnection* connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

    while(!self->finished]){
        //This line below is the magic!
        [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
    }
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
    //...
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
    //...
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{
    //...   
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
    //...   
    self->finished = YES;
}