Flex Download

No Flex, como criar uma tela de download, no exemplo acima:


<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" 
backgroundColor="#ffffff">

<mx:Style source="styles/styles.css" />

<mx:HRule x="10" y="37" width="90%"/>
<mx:Text x="10" y="10" text="Downloading a File" styleName="headerStyle" id="label1"/>

<mx:Button x="10" y="75" label="Download HTML Component" click="{download()}"/>

<mx:Script>
<![CDATA[
public function download():void {
// pass in url to file or php proxy
// create a new file reference instance
var request:URLRequest = new URLRequest("http://www.drumbeatinsight.com/examples/html/HTMLComponent1.0.0.zip");
var fileRef:FileReference = new FileReference();
fileRef.download(request);
}
]]>
</mx:Script>
</mx:Application>