让Adobe AIR 程序离线运行(翻译)

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication    xmlns:mx="http://www.adobe.com/2006/mxml"
                  layout="absolute" creationComplete="init()"
                  currentState="{isOnline ? 'Online' : 'Offline'}"
                  closing="applicationClosingHandler(event)">
   <mx:Script>
      <![CDATA[
         import flash.filesystem.*;
        
         private var localFile:File = File.appStorageDirectory.resolve("AIROffline/rooms.xml");
         private var localFileStream:FileStream;
        
         [Bindable]
         private var isOnline:Boolean = false;
         private var request:URLRequest = new URLRequest("http://blogs.katapultmedia.com/jb2/_dev/onlineoffline/data/rooms.xml");
         private var requestLoader:URLLoader = new URLLoader();
         [Bindable]
         private var roomsXML:XML = new XML();
        
         private function init():void{
            requestLoader.addEventListener(Event.COMPLETE, requestCompleteHandler);
            requestLoader.addEventListener(IOErrorEvent.IO_ERROR, requestErrorHandler);
            
            Shell.shell.addEventListener(Event.NETWORK_CHANGE, onNetworkChange);