flex as3 单击与双击的判断

<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

<mx:Button x="506" y="162" label="Button" click="onClick(event)" doubleClickEnabled="true" doubleClick="onDoubleClick(event)"/>

<mx:Script>

<![CDATA[

import mx.controls.Alert;

var isDoubleClick:Boolean=false;

private function onDoubleClick(event:MouseEvent):void { 

              isDoubleClick  =  true ; 

              result.text=new String(isDoubleClick);

    } 

 

   private function onClick(event:MouseEvent):void { 

       isDoubleClick  =  false ; 

      var timer:Timer  =  new  Timer(300,1); 

      timer.start();

      timer.addEventListener(TimerEvent.TIMER, clickOrDouble);

  } 

  private function clickOrDouble(e:TimerEvent):void { 

     if(isDoubleClick){ 

Alert.show("dbclick");

     }else{ 

       Alert.show("click");

      } 

  } 

]]>

</mx:Script>

<mx:TextInput id="result" x="506" y="221"/>

</mx:Application>