| <?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="top"
backgroundColor="white">
<mx:Style>
PopUpButton {
popUpStyleName: myCustomPopUpStyleName;
}
.myCustomPopUpStyleName {
fontWeight: normal;
textAlign: left;
leftIconGap: 0;
}
</mx:Style>
<mx:Script>
<![CDATA[
import mx.controls.Menu;
private function init():void {
var menu:Menu = new Menu();
menu.dataProvider = arr;
popUpButton.popUp = menu;
}
private function resizePopUp():void {
popUpButton.popUp.width = popUpButton.width;
}
]]>
</mx:Script>
<mx:Array id="arr">
<mx:Object label="Alert" />
<mx:Object label="Button" />
<mx:Object label="ButtonBar" />
<mx:Object type="separator" />
<mx:Object label="CheckBox" />
<mx:Object label="ColorPicker" />
<mx:Object label="ComboBox" />
</mx:Array>
<mx:ApplicationControlBar dock="true">
<mx:Form styleName="plain">
<mx:FormItem label="cornerRadius:">
<mx:HSlider id="slider"
minimum="0"
maximum="{popUpButton.height / 2}"
value="0"
liveDragging="true"
snapInterval="1"
tickInterval="1" />
</mx:FormItem>
</mx:Form>
</mx:ApplicationControlBar>
<mx:PopUpButton id="popUpButton"
label="Please select an item..."
cornerRadius="{slider.value}"
arrowButtonWidth="{popUpButton.height}"
openAlways="true"
initialize="init();"
creationComplete="resizePopUp();" />
</mx:Application>
| 
