The following example shows how you can use the static
UIDUtil.getUID() method to generate and retreive a unique identifier for an Object. The first time you click the Display UID button, an Alert control displays the generated UID and a string representation of the Object (yay
ObjectUtil.toString()!). The second time you click the Display UID button, you’ll notice that a new parameter is added to the Object, mx_internal_uid
<?
xml version="1.0" encoding="utf-8"
?>
<!--
http://blog.flexexamples.com/2007/11/01/creating-unique-identifiers-for-objects-using-the-getuid-method/
-->
<
mx:Application
xmlns:mx
="http://www.adobe.com/2006/mxml"
layout
="vertical"
verticalAlign
="middle"
backgroundColor
="white"
>
<
mx:Script
>
<![CDATA[
import mx.controls.Alert; import mx.utils.ObjectUtil; import mx.utils.UIDUtil; private function displayUID():void { var text:String = ObjectUtil.toString(myObj); var title:String = UIDUtil.getUID(myObj); Alert.show(text, title); }
]]>
</
mx:Script
>
<
mx:Object
id
="myObj"
name
="peter"
site
="flexexamples.com"
/>
<
mx:ApplicationControlBar
dock
="true"
>
<
mx:Button
label
="Display UID"
click
="displayUID();"
/>
</
mx:ApplicationControlBar
>
</
mx:Application
>
转载于:https://www.cnblogs.com/wuhenke/archive/2010/01/09/1642793.html
