?flex 单选框，复选框 下拉框，及颜色选择框。
现在的版本已经升级到flex4 了，我在网上找的部分代码还是flex 3 的，因为代码升级的原因，大部分的flex3代码是可以运行的，还有一部分内容不能运行了，还要做一些改动或升级。最主要的区别是flex 3 默认主题是halo,而flex4 已经升级为spark,相应的标记也由mx升级为s.详细的区别还要再查找资料。
本系列的源码主要来自于网上，同时，还有来自于《自学flex》一书中。
<?xml version="1.0" encoding="utf-8"?>
<!--转：http://blog.sina.com.cn/s/blog_6dd3fe2e0100pa6v.html-->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
????? xmlns:s="library://ns.adobe.com/flex/spark"
????? xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
?<fx:Declarations>
??<!-- 将非可视元素（例如服务、值对象）放在此处 -->
??
?</fx:Declarations>
?<!--flex3 中的script 要用mx? flex4中要用到fx-->
?<fx:Script>
??
??
??<![CDATA[
???protected function button1_clickHandler(event:MouseEvent):void
???{
????// TODO Auto-generated method stub
??????????????? var s :String;
????s="";
????if(cbVideoGames.selected)
????{
?????s = s + cbVideoGames.label;
????}
????if(cbFishing.selected)
????{
?????s = s + cbFishing.label;
????}
????mx.controls.Alert.show(s);
???}
???
???public function showMsg(msg:String):void
????? {
????? mx.controls.Alert.show(msg);
????? }
??]]>
??
?</fx:Script>
?
?<mx:Panel width="400" height="150" title="Profile">
??
??<!-- *** CHECKBOX EXAMPLE *** -->
??<mx:HBox>
???<mx:Label text="Your hobbies:"/>
???<mx:CheckBox id="cbVideoGames" label="Video Games"
?????? click="showMsg('Video Games is ' + cbVideoGames.selected)"/>
???<mx:CheckBox id="cbFishing" label="Fishing"
?????? click="showMsg('Fishing is ' + cbFishing.selected)"/>
??</mx:HBox>
??
??<!-- *** RADIO BUTTON EXAMPLE *** -->
??<mx:HBox>
???<mx:Label text="Do you like spam:"/>
???<!-- This is going to cause two popups occur. -->
???<!-- The click event on the radiobutton will fire -->
???<!-- And then the itemClick on the radio button group will fire -->
???<!-- The RadioButtonGroup is optional. -->
???<!-- Use it when you need to call a single function regardless -->
???<!-- of radio button -->
???<mx:RadioButtonGroup id="Spam"
???????? itemClick="showMsg('User picked ' + event.currentTarget.selectedValue)"/>
???<mx:RadioButton id="rbYes" value="Yes" groupName="Spam"
???????click="showMsg('Yes')" label="Yes"/>
???<mx:RadioButton id="rbNo" value="No" groupName="Spam"
???????click="showMsg('No')" label="No"/>
??</mx:HBox>
??
??<!-- *** COMBOBOX AND COLORPICKER EXAMPLE *** -->
??<mx:HBox>
???<mx:Label text="Favorite car maker:"/>
???<mx:ComboBox id="combo"
?????? change="showMsg('Favorite car is ' + event.currentTarget.selectedItem)">
????<!--flex3 中的array 要用mx? flex4中要用到fx-->
????<fx:Array>
?????<fx:String>Ferrari</fx:String>
?????<fx:String>Porsche</fx:String>???????
?????<fx:String>Hyundai</fx:String>????????
????</fx:Array>
???</mx:ComboBox>
???<mx:Label text="With the color of:"/>
???<mx:ColorPicker id="clr"
???????change="showMsg('Color ' + event.currentTarget.selectedColor)"/>
??</mx:HBox>
??<s:Button label="按钮" click="button1_clickHandler(event)"/>
??
?</mx:Panel>
?
</s:Application>
