How To Play Streaming Remote Video

Hello. I'm Tatsuya.We're developing an app which is based on the VideoPlayback. We're now trying to add a function to display a remote video(on a web server) on the marker through streaming techniques. We've already made a simply function to play a remote video on the marker.It simply downloads the video file to the local strage and plays the video. However, it takes a lot of time to finish downloading. So we'd like to implement a streaming downloading process such as the Videoplayback of Android version. The way of using streaming techniques is pretty difficult to us. Could you give me some advises?Thank you.