MACROMEDIA FLEX-FLEX ACTIONSCRIPT LANGUAGE Reference page 653

Example
The following example creates a progress bar using the Drawing API and the
properties that displays the loading progress of video1.flv into the video object
bytesTotal
instance called
my_video
information about the loading progress as well.
var connection_nc:NetConnection = new NetConnection();
connection_nc.connect(null);
var stream_ns:NetStream = new NetStream(connection_nc);
my_video.attachVideo(stream_ns);
stream_ns.play("video1.flv");
this.createTextField("loaded_txt", this.getNextHighestDepth(), 10, 10, 160,
22);
this.createEmptyMovieClip("progressBar_mc", this.getNextHighestDepth());
progressBar_mc.createEmptyMovieClip("bar_mc",
progressBar_mc.getNextHighestDepth());
with (progressBar_mc.bar_mc) {
beginFill(0xFF0000);
moveTo(0, 0);
lineTo(100, 0);
lineTo(100, 10);
lineTo(0, 10);
lineTo(0, 0);
endFill();
_xscale = 0;
}
progressBar_mc.createEmptyMovieClip("stroke_mc",
progressBar_mc.getNextHighestDepth());
with (progressBar_mc.stroke_mc) {
lineStyle(0, 0x000000);
moveTo(0, 0);
lineTo(100, 0);
lineTo(100, 10);
lineTo(0, 10);
lineTo(0, 0);
}
var loaded_interval:Number = setInterval(checkBytesLoaded, 500, stream_ns);
function checkBytesLoaded(my_ns:NetStream) {
var pctLoaded:Number = Math.round(my_ns.bytesLoaded/my_ns.bytesTotal*100);
loaded_txt.text = Math.round(my_ns.bytesLoaded/1000)+" of
"+Math.round(my_ns.bytesTotal/1000)+" KB loaded ("+pctLoaded+"%)";
progressBar_mc.bar_mc._xscale = pctLoaded;
if (pctLoaded>=100) {
clearInterval(loaded_interval);
}
}
See also
NetStream.bufferLength
. A text field called
loaded_txt
bytesLoaded
is dynamically created to display
NetStream.bytesLoaded
and
653