ProgressBarMode  - AS3 Flash

import fl.containers.UILoader;
import fl.controls.Label;
import fl.controls.ProgressBar;
import fl.controls.ProgressBarMode;
import fl.events.ComponentEvent;

var url:String = "http://www.helpexamples.com/flash/images/image2.jpg";

var myUILoader:UILoader = new UILoader();
myUILoader.visible = false;
myUILoader.scaleContent = false;
myUILoader.autoLoad = false;
myUILoader.source = url;
myUILoader.addEventListener(ComponentEvent.RESIZE, resizeHandler);
myUILoader.load();

var myProgressBar:ProgressBar = new ProgressBar();
myProgressBar.mode = ProgressBarMode.EVENT;
myProgressBar.indeterminate = false;
myProgressBar.source = myUILoader;
myProgressBar.setSize(320, 12);
myProgressBar.move((stage.stageWidth - myProgressBar.width) / 2, (stage.stageHeight - myProgressBar.height) / 2);
myProgressBar.addEventListener(Event.COMPLETE, completeHandler);
myProgressBar.addEventListener(ProgressEvent.PROGRESS, progressHandler);
addChild(myProgressBar);

var myLabel:Label = new Label();
myLabel.text = "";
myLabel.autoSize = TextFieldAutoSize.LEFT;
myLabel.move(myProgressBar.x, myProgressBar.y + myProgressBar.height);
addChild(myLabel);

function progressHandler(event:ProgressEvent):void {
    trace("progress:", event.bytesLoaded, "of", event.bytesTotal, "bytes");
    myLabel.text = event.bytesLoaded + " of " + event.bytesTotal + " (" + event.currentTarget.percentComplete.toFixed(1) + "%)";
}

function completeHandler(event:Event):void {
    trace("complete:");
    removeChild(myLabel);
    removeChild(myProgressBar);
    myProgressBar.removeEventListener(ProgressEvent.PROGRESS, progressHandler);
    myProgressBar.removeEventListener(Event.COMPLETE, completeHandler);
    addChild(myUILoader);
}

function resizeHandler(event:ComponentEvent):void {
    trace("resize:");
    var myUILdr:UILoader = event.currentTarget as UILoader;
    myUILdr.move((stage.stageWidth - myUILdr.width) / 2, (stage.stageHeight - myUILdr.height) / 2);
    myUILdr.visible = true;
}

import fl.controls.Label;
import fl.controls.ProgressBar;
import fl.controls.ProgressBarMode;

var myProgressBar:ProgressBar = new ProgressBar();
myProgressBar.indeterminate = false;
myProgressBar.mode = ProgressBarMode.MANUAL;
myProgressBar.maximum = 256;
myProgressBar.setSize(320, 16);
myProgressBar.move(10, 10)
addChild(myProgressBar);

var myLabel:Label = new Label();
myLabel.text = "";
myLabel.autoSize = TextFieldAutoSize.LEFT;
myLabel.move(myProgressBar.x, myProgressBar.y + myProgressBar.height);
addChild(myLabel);

var t:Timer = new Timer(150);
t.addEventListener(TimerEvent.TIMER, timerHandler);
t.start();

function timerHandler(event:TimerEvent):void {
    myProgressBar.setProgress(myProgressBar.value + 1, myProgressBar.maximum);
    if (myProgressBar.percentComplete == 100) {
        myProgressBar.setProgress(0, myProgressBar.maximum);
    }
    myLabel.text = int(myProgressBar.value) + " of " + int(myProgressBar.maximum) + " (" + int(myProgressBar.percentComplete) + "%)";
}

import fl.controls.ProgressBar;
import fl.controls.ProgressBarMode;

var url:String = "http://www.helpexamples.com/flash/video/cuepoints.flv";

var nc:NetConnection = new NetConnection();
nc.connect(null);

var ns:NetStream = new NetStream(nc);
ns.client = {onMetaData:metaDataHandler};
ns.play(url);

var vid:Video = new Video();
vid.attachNetStream(ns);
vid.x = (stage.stageWidth - vid.width) / 2;
vid.y = (stage.stageHeight - vid.height) / 2;
addChild(vid);

var myProgressBar:ProgressBar = new ProgressBar();
myProgressBar.mode = ProgressBarMode.POLLED;
myProgressBar.indeterminate = false;
myProgressBar.source = ns;
myProgressBar.setSize(vid.width, myProgressBar.height);
myProgressBar.move(vid.x, vid.y + vid.height);
addChild(myProgressBar);

function metaDataHandler(meta:Object):void {
    try {
        trace("w:" + meta.width, "h:" + meta.height);
        vid.width = meta.width;
        vid.height = meta.height;
        vid.x = (stage.stageWidth - vid.width) / 2;
        vid.y = (stage.stageHeight - vid.height) / 2;
        myProgressBar.width = vid.width;
        myProgressBar.move(vid.x, vid.y + vid.height);
    } catch (error:*) {
        // 
    }
}