ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with video
nc = new NetConnection();
nc.connect(null);
ns = new NetStream(nc);
ns.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);
ns.client = client;
The netStatusHandler() method is called whenever the status of the video is changed. This includes when a video
starts or stops playback, is buffering or if a video stream cannot be found. The following code lists the
netStatusHandler() event:
private function netStatusHandler(event:NetStatusEvent):void
{
try
{
switch (event.info.code)
{
case "NetStream.Play.Start":
t.start();
break;
case "NetStream.Play.StreamNotFound":
case "NetStream.Play.Stop":
t.stop();
playNextVideo();
break;
}
}
catch (error:TypeError)
{
// Ignore any errors.
}
}
The previous code evaluates the code property of the info object and filters whether the code is “NetStream.Play.Start”,
“NetStream.Play.StreamNotFound”, or “NetStream.Play.Stop”. All other codes will be ignored. If the net stream is
starting the code starts the Timer instance which updates the playhead. If the net stream cannot be found or is stopped,
the Timer instance is stopped and the application attempts to play the next video in the playlist.
Every time the Timer executes, the positionBar progress bar instance updates its current position by calling the
setProgress() method of the ProgressBar class and the positionLabel Label instance is updated with the time
elapsed and total time of the current video.
private function timerHandler(event:TimerEvent):void
{
try
{
positionBar.setProgress(ns.time, meta.duration);
positionLabel.text = ns.time.toFixed(1) + " of " meta.duration.toFixed(1) + " seconds";
}
catch (error:Error)
{
// Ignore this error.
}
}
Last updated 6/6/2012
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