怎么去掉Flex4生成的SWF加载时的进度条

　　汗~AJAX感太强了 但我要一下子加载 坛子里说了
　　方法1：  flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" usePreloader="false">  方法二:
　　重写Preload的进度条类 package com.haso.flex4SH.component { import flash.display.Sprite; import flash.events.Event; import flash.events.ProgressEvent; import mx.events.FlexEvent; import mx.preloaders.DownloadProgressBar; public class pbarunsee extends DownloadProgressBar { public function pbarunsee() { super(); } override public function set preloader( preloader:Sprite ):void { preloader.addEventListener( ProgressEvent.PROGRESS , SWFDownloadProgress ); preloader.addEventListener( Event.COMPLETE , SWFDownloadComplete ); preloader.addEventListener( FlexEvent.INIT_PROGRESS , FlexInitProgress ); preloader.addEventListener( FlexEvent.INIT_COMPLETE , FlexInitComplete ); } private function SWFDownloadProgress( event:ProgressEvent ):void { this.visible=false; } private function SWFDownloadComplete( event:Event ):void {this.visible=false;} private function FlexInitProgress( event:Event ):void { this.visible=false; } private function FlexInitComplete( event:Event ):void { dispatchEvent(new Event(Event.COMPLETE)); } } }  flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" preloader="com.haso.flex4SH.component.pbarunsee">