给LIST控件添加投影效果.

LIST控件的dropShadowEnabled样式.

示例:

代码：

 

<? xml version="1.0" encoding="utf-8" ?>
<!--  http://blog.flexexamples.com/2008/07/22/toggling-a-drop-shadow-on-the-list-control-in-flex/  -->
< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"
        layout ="vertical"
        verticalAlign ="middle"
        backgroundColor ="white" >

     < mx:Array  id ="arr" >
         < mx:Object  label ="One"   />
         < mx:Object  label ="Two"   />
         < mx:Object  label ="Three"   />
         < mx:Object  label ="Four"   />
         < mx:Object  label ="Five"   />
         < mx:Object  label ="Six"   />
         < mx:Object  label ="Seven"   />
         < mx:Object  label ="Eight"   />
         < mx:Object  label ="Nine"   />
         < mx:Object  label ="Ten"   />
     </ mx:Array >

     < mx:ApplicationControlBar  dock ="true" >
         < mx:Form  styleName ="plain" >
             < mx:FormItem  label ="dropShadowEnabled:" >
                 < mx:CheckBox  id ="checkBox"   />
             </ mx:FormItem >
         </ mx:Form >
     </ mx:ApplicationControlBar >

     < mx:List  id ="list"
            dataProvider =" {arr} "
            dropShadowEnabled =" {checkBox.selected} "
            width ="100"   />

</ mx:Application >

 

也可以通过CSS来设置：

 

 

 

<? xml version="1.0" encoding="utf-8" ?>
<!--  http://blog.flexexamples.com/2008/07/22/toggling-a-drop-shadow-on-the-list-control-in-flex/  -->
< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"
        layout ="vertical"
        verticalAlign ="middle"
        backgroundColor ="white" >

     < mx:Style >
        List {
            dropShadowEnabled: true;
        }
     </ mx:Style >

     < mx:Array  id ="arr" >
         < mx:Object  label ="One"   />
         < mx:Object  label ="Two"   />
         < mx:Object  label ="Three"   />
         < mx:Object  label ="Four"   />
         < mx:Object  label ="Five"   />
         < mx:Object  label ="Six"   />
         < mx:Object  label ="Seven"   />
         < mx:Object  label ="Eight"   />
         < mx:Object  label ="Nine"   />
         < mx:Object  label ="Ten"   />
     </ mx:Array >

     < mx:List  id ="list"
            dataProvider =" {arr} "
            width ="100"   />

</ mx:Application >

 

也可以通过AS的函数实现：

 

 

 

<? xml version="1.0" encoding="utf-8" ?>
<!--  http://blog.flexexamples.com/2008/07/22/toggling-a-drop-shadow-on-the-list-control-in-flex/  -->
< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"
        layout ="vertical"
        verticalAlign ="middle"
        backgroundColor ="white" >

     < mx:Script >
         <![CDATA[
            private function checkBox_change(evt:Event):void {
                list.setStyle("dropShadowEnabled", checkBox.selected);
            }
         ]]>
     </ mx:Script >

     < mx:Array  id ="arr" >
         < mx:Object  label ="One"   />
         < mx:Object  label ="Two"   />
         < mx:Object  label ="Three"   />
         < mx:Object  label ="Four"   />
         < mx:Object  label ="Five"   />
         < mx:Object  label ="Six"   />
         < mx:Object  label ="Seven"   />
         < mx:Object  label ="Eight"   />
         < mx:Object  label ="Nine"   />
         < mx:Object  label ="Ten"   />
     </ mx:Array >

     < mx:ApplicationControlBar  dock ="true" >
         < mx:Form  styleName ="plain" >
             < mx:FormItem  label ="dropShadowEnabled:" >
                 < mx:CheckBox  id ="checkBox"
                        change ="checkBox_change(event);"   />
             </ mx:FormItem >
         </ mx:Form >
     </ mx:ApplicationControlBar >

     < mx:List  id ="list"
            dataProvider =" {arr} "
            width ="100"   />

</ mx:Application >

 

 

 

源文件： http://blog.flexexamples.com/wp-content/uploads/List_dropShadowEnabled_test/bin/srcview/index.html

 

 

来自：http://blog.flexexamples.com/2008/07/22/toggling-a-drop-shadow-on-the-list-control-in-flex/