flex 组件的布局 隐藏组件

<?xml version="1.0" encoding="utf-8"?>
<mx:Application fontSize="12" xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">
 <mx:Script>
  <![CDATA[
   public var treeXml: XML = <nodes name="所有">
 &n ......

 Flex Builder 3.0正式版：
http://download.macromedia.com/pub/flex/flex_builder/FB3_win.exe
或
http://www.adobe.com/cfusion/tdrc/index.cfm?product=flex
或
http://trials.adobe.com/Applications/Flex/FlexBuilder/3/FB3_WWEJ_Plugin.exe
AIR1.0 正式版：
http://airdownload.adobe.com/air ... ob ......

自定义类(BroadCastMarquee.as)：
package marquee
{
    import flash.events.MouseEvent;
    import flash.events.TimerEvent;
    import flash.geom.Rectangle;
    import flash.text.TextField;
    import flash.text.TextFiel ......

<?xml version=
"1.0"
 encoding=
"utf-8"
?>   
<mx:Application xmlns:mx=
"http://www.adobe.com/2006/mxml"
  
        xmlns:assql=
"com.maclema.mysql.mxml.*"
  & ......

本例中将实现当应用运行时不进行任何操作就先弹出窗口，点击关闭/点击窗口任一位置 时将关闭窗口
1）创建Component—DefaultWin.mxml （目录结构src/components/DefaultWin.mxml）
<?xml version="1.0" encoding="utf-8"?>
<mx:TitleWindow xmlns:mx="http://www.adobe.com/2006/mxml"
    ......