Code to fit Adobe AIR application in the desktop window

To fit the Adobe Window Application in the desktop you need to call the below script in the applicationComplete event.
ie
In mxml file
applicationComplete="init()"

In the script add the below function
private function init():void
{
this.nativeWindow.maximize();
}

Calculate Audio play progressing time

private var sound:Sound = new Sound()
private var channel:SoundChannel = new SoundChannel();

sound.addEventListener(ProgressEvent.PROGRESS, onProgress);

private function onProgress(event:ProgressEvent):void{
var percentLoaded:Number = event.bytesLoaded / event.bytesTotal;
var approxProgress:Number
= channel.position / sound.length * percentLoaded;
// Update your progress bar based on approxProgress
}

How to add Browser window page title in Flex

mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" pageTitle="MyFirstPageTitle"

How to check whether the flex array is not empty

We can check by using array length.
ie. array.length > 0