设置RadioButton控件中文本的位置.

RadioButton控件的labelPlacement属性.
 示例：

代码：

<? xml version="1.0" encoding="utf-8" ?>
<!--  http://blog.flexexamples.com/2008/06/19/setting-the-label-placement-on-a-radiobuttongroup-in-flex/  -->
< mx:Application  xmlns:mx ="http://www.adobe.com/2006/mxml"
        layout ="vertical"
        verticalAlign ="middle"
        backgroundColor ="white" >

     < mx:ApplicationControlBar  dock ="true" >
         < mx:Form  styleName ="plain" >
             < mx:FormItem  label ="labelPlacement:" >
                 < mx:ComboBox  id ="comboBox"
                        dataProvider ="[left, right, top, bottom]"
                        selectedIndex ="1"   />
             </ mx:FormItem >
         </ mx:Form >
     </ mx:ApplicationControlBar >

     < mx:RadioButtonGroup  id ="radioGroup"
            labelPlacement =" {comboBox.selectedItem} "   />

     < mx:HBox  horizontalAlign ="left"  verticalGap ="15" >
         < mx:RadioButton  id ="radioButton1"
                label ="Red"
                group =" {radioGroup} "
                opaqueBackground ="0xFF00FF"   />
         < mx:RadioButton  id ="radioButton2"
                label ="Orange"
                group =" {radioGroup} "
                opaqueBackground ="0xFF00FF"   />
         < mx:RadioButton  id ="radioButton3"
                label ="Yellow"
                group =" {radioGroup} "
                opaqueBackground ="0xFF00FF"   />
         < mx:RadioButton  id ="radioButton4"
                label ="Green"
                group =" {radioGroup} "
                opaqueBackground ="0xFF00FF"   />
         < mx:RadioButton  id ="radioButton5"
                label ="Blue"
                group =" {radioGroup} "
                opaqueBackground ="0xFF00FF"   />
     </ mx:HBox >

</ mx:Application >