去掉Flex4生成的SWF加载时的进度条

方法一：

<?xml version="1.0" encoding="utf-8"?>    
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"     
xmlns:s="library://ns.adobe.com/flex/spark"     
xmlns:mx="library://ns.adobe.com/flex/mx" usePreloader="false">

方法二：

pbarunsee

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));     
        }     
    }    
}

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"    
               xmlns:s="library://ns.adobe.com/flex/spark"    
               xmlns:mx="library://ns.adobe.com/flex/mx"    
               minWidth="955" minHeight="600"  preloader="com.haso.flex4SH.component.pbarunsee">