User Guide

1004 ProgressBar component

The second usage example uses an on() handler and must be attached directly to a

ProgressBar instance. The keyword

this, used inside an on() handler attached to a

component, refers to the component instance. For example, the following code, attached

to the instance

progressBarInstance, sends “_level0.progressBarInstance” to the

Output panel:

on (complete) {

trace(this);

}

Example

This example creates a Loader component, a ProgressBar (my_pb) for it, and a listener that

makes the progress bar invisible when the

complete event occurs. The example loads an

image into the loader

my_ldr.

You must first drag a Loader component and a ProgressBar component from the Components

panel to the current document’s library; then add the following code to Frame 1 of the main

timeline:

/**

Requires:

- ProgressBar component in library

- Loader component in library

System.security.allowDomain("http://www.helpexamples.com");

this.createClassObject(mx.controls.Loader, "my_ldr", 10, {autoLoad:false});

this.createClassObject(mx.controls.ProgressBar, "my_pb", 20,

{indeterminate:true, source:my_ldr, mode:"polled"});

// Create Listener Object

var pbListener:Object = new Object();

pbListener.complete = function(evt_obj:Object) {

my_pb.visible = false;

};

// Add Listener

my_pb.addEventListener("complete", pbListener);

my_ldr.load("http://www.helpexamples.com/flash/images/image2.jpg");