import com.myflashlab.air.extensions.player.surface.SurfacePlayer;
     import com.myflashlab.air.extensions.player.surface.SurfacePlayerEvent;
     import com.myflashlab.air.extensions.player.surface.SurfaceVideoLocation;
     
     var _ex:SurfacePlayer = new SurfacePlayer(stage);
     
     // on Android, when the surface player is availble, it will hijack the device back button clicks! with the folloiwng listener you can listen to device's back button clicks
     _ex.addEventListener(SurfacePlayerEvent.ON_BACK_CLICKED, onBackClickedWhenSurfacePlayerIsAvailable);
     
     // dispatches when the video has reached end
     _ex.addEventListener(SurfacePlayerEvent.ON_COMPLETION_LISTENER, onVideoPlaybackCompleted);
     
     // when you attach a video file _ex.attachVideo(file); this listener will tell you if this file is availble or not. play your video only if it is availble
     _ex.addEventListener(SurfacePlayerEvent.ON_FILE_AVAILABILITY, onTargetVideoAvailability);
     
     // this listener will tell you different states that your Media is in. "STARTED", "PAUSED", "STOPPED"
     _ex.addEventListener(SurfacePlayerEvent.ON_MEDIA_STATUS_CHANGED, onMediaStatusChanged);
     
     // the first thing you should do is to initialize the extension with its initial parameters
     _ex.init(x, y, width, height, true); // the last parameter is the ratio for your video clip if false, the video will be stretched to fit your specified width and height
     
     // after initializing the extension, you need to attach a new video file to it
     _ex.attachVideo(File.applicationStorageDirectory.resolvePath("testVideoPlayerSurface.mp4"), SurfaceVideoLocation.ON_APP);
     
     // and finally play it! (it's a good idea to always check for SurfacePlayerEvent.ON_FILE_AVAILABILITY before playing the file)
     _ex.play();
     
     // there are many other methods for you to control the video playback like pause, seek, fullscreen, set volume, etc. please study the sample demo project
     // coming with this extension to know how you can work with the other methods and when/how to dispose the extension properly.