glllxml.as

flex开发的音乐播放程序程序。带歌词功能

package com.ll19.xml {
	import flash.events.Event;
	import flash.events.IEventDispatcher;
	import flash.events.IOErrorEvent;
	import flash.events.ProgressEvent;
	import flash.net.URLLoader;
	import flash.net.URLRequest;	

	/**
	 * - GL'LL. - 
	 * 
	 * 用来加载XML类
	 * 
	 * @author <a href="http://www.LL19.com/">LL19.com</a>
	 * 
	 */
	public class GlllXML {

		public var myXML:XML;

		public var myXMLURL:URLRequest;

		public var myLoader:URLLoader;

		public var XMLState:String = "";

		/**
		 * @param xmlurl XML地址
		 */
		public function loadGlllXML(XMLUrl:String):void {
			myXML = new XML();
			myLoader = new URLLoader();
			configureListeners(myLoader);
			myXMLURL = new URLRequest(XMLUrl);
			try {
				myLoader.load(myXMLURL);
			} catch (error:Error) {
				trace("Unable to load requested XMLURL." + XMLUrl);
				myLoader.close();
				myLoader = null;
				myXMLURL = null;
			}finally {
				//myLoader.close();
			}
		}

		private function configureListeners(dispatcher:IEventDispatcher):void {
			dispatcher.addEventListener(Event.COMPLETE, completeHandler);
			dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
			dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler);
		}

		private function progressHandler(event:ProgressEvent):void {
			trace("XML progressHandler loaded:" + event.bytesLoaded + " total: " + event.bytesTotal);
		}

		public function completeHandler(event:Event):void {
			myXML.ignoreWhitespace = true;
			myXML = XML(myLoader.data);
			myLoader.close();
			myXMLURL = null;
			myLoader = null;
			trace("XML load complete.");
			XMLState = "complete";
		}

		public function ioErrorHandler(event:Event):void {
			trace("Unable to load requested XMLURL.");
			myLoader.close();
			myXMLURL = null;
			myLoader = null;
			XMLState = "error";
		}
	}
}