自定义Flex组件的两种方法

<?xml version="1.0"?>
<mx:ComboBox xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:dataProvider>
<mx:String>AK</mx:String>
<mx:String>AL</mx:String>
</mx:dataProvider>
</mx:ComboBox>

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:MyComp="*" >
<MyComp:StateComboBox/>
</mx:Application>

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:MyComp="*" >
<mx:Script>
<![CDATA[
import flash.events.Event;
private function handleCloseEvent(eventObj:Event):void {
// ...
}
]]>
</mx:Script>
<MyComp:StateComboBox rowCount="5" close="handleCloseEvent(event);"/>
</mx:Application>

package myComponents {

import mx.controls.Button;

public class MyButton extends Button {

public function MyButton() {

super();

label="Submit";

}

}

}

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
xmlns:MyComp="myComponents.*" >
<MyComp:MyButton/>
</mx:Application>