1：tourdeflex快速熟悉各种组件用法的参考
http://www.adobe.com/devnet/flex/tourdeflex.html
在线：http://www.adobe.com/devnet-apps/flex/tourdeflex/web/
Tree
flex tree更换图标：iconFunction属性
<mx:Tree id="resTree" labelField="@name" showRoot="false" iconFunction="setIcon"/>
[Bindable]
[Embed(source="assetes/icon/comp/HScrollBar.png")]
private var HScrollBarCls:Class
[Bindable]
[Embed(source="assetes/icon/comp/assetsPack.png")]
private var assPackCls:Class
private function setIcon(item:Object):*
{
var xml:XML = item as XML;
if (xml.hasComplexContent())
{
//如果是包 返回文件夹的图片
return assPackCls;
}
else
{
var key:String = xml. @ name;
var vo:ExtendFileVO = ExtendsNameParse.getExtendVOByName(key);
var cls:Class = _map.getValue(vo.icon);
return cls;
} }