AIR中打开PDF

?<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx=" http://ns.adobe.com/mxml/2009" ??????? xmlns:s="library://ns.adobe.com/flex/spark" ??????? xmlns:mx="library://ns.adobe.com/flex/mx" ??????? creationComplete="creationCompleteHandler()" ??????? resize="onResize()"> ?<fx:Script> ??<![CDATA[ ???import mx.core.UIComponent; ???private var htmlWin:HTMLLoader; ???protected function creationCompleteHandler():void ???{ ????var ref:UIComponent = new UIComponent(); ????htmlWin = new HTMLLoader(); ????htmlWin.width = width; ????htmlWin.height = height; ????ref.addChild( htmlWin ); ????addElement( ref ); ????htmlWin.load( new URLRequest( 'Flex 4 in Action.pdf' ) ); ???} ???private function onResize():void ???{ ????if ( htmlWin ) ????{ ?????htmlWin.width = width; ?????htmlWin.height = height; ????} ???} ??]]> ?</fx:Script> </s:WindowedApplication>