flex（air for android ）操作menu

<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
  xmlns:s="library://ns.adobe.com/flex/spark"
  title="View Menu Example">
 <fx:Script>
  <![CDATA[
   import mx.core.FlexGlobals;
   private function onClick (e:Event ) :void
   {
    FlexGlobals.topLevelApplication.viewMenuOpen=true;
   }
   private function onSelected (e:Event ) :void
   {
    myLabel.text = e.currentTarget.label + " selected";
   }
  ]]>
 </fx:Script>
 <s:VGroup>
  <s:Label id="myLabel"/>
  <s:Button id="myButton"
      label="Open Menu!"
      click="onClick (event )"/>
 </s:VGroup>
 <s:viewMenuItems>
  <s:ViewMenuItem label="Add"
      click="onSelected (event )"/>
  <s:ViewMenuItem label="Update"
      click="onSelected (event )"/>
  <s:ViewMenuItem label="Delete"
      click="onSelected (event )"/>
  
 </s:viewMenuItems>
 
</s:View>