I saw there are several apps on App Store that allow other computers to make a http connection to the iPhone/iPad devices to transfer files. It seemed like a web service is running on the iOS device. Just curious how is it done /what class was used?
Thanks.
Just display the devices IP address, open a socket for listening in an app running on the iOS device, and implement the http protocol. There are several 3rd party libraries that can do most of the heavy lifting for you:
CocoaHTTPServer or iPhoneHTTPServer3, or SimpleWebSocketServer, or MultithreadedHTTPServer3