NumericStepper控件的
backgroundColor 和
backgroundAlpha 样式学习。
示例：
代码：
<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/05/23/setting-the-background-color-and-background-alpha-for-a-numericstepper-control-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="backgroundAlpha:">
<mx:HSlider id="slider"
minimum="0.0"
maximum="1.0"
value="1.0"
snapInterval="0.1"
tickInterval="0.1"
liveDragging="true" />
</mx:FormItem>
<mx:FormItem label="backgroundColor:">
<mx:ColorPicker id="colorPicker"
selectedColor="white" />
</mx:FormItem>
</mx:Form>
</mx:ApplicationControlBar>
<mx:NumericStepper id="numericStepper"
backgroundAlpha="{slider.value}"
backgroundColor="{colorPicker.selectedColor}" />
</mx:Application>
你也可以把样式写在CSS中.
<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/05/23/setting-the-background-color-and-background-alpha-for-a-numericstepper-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
<mx:Style>
NumericStepper {
backgroundAlpha: 0.5;
backgroundColor: red;
}
</mx:Style>
<mx:NumericStepper id="numericStepper" />
</mx:Application>
你也可以使用AS的setStyle()方法：
<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/05/23/setting-the-background-color-and-background-alpha-for-a-numericstepper-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
<mx:Script>
<![CDATA[
private function init():void {
numericStepper.setStyle("backgroundAlpha", 0.5);
numericStepper.setStyle("backgroundColor", "red");
}
]]>
</mx:Script>
<mx:NumericStepper id="numericStepper"
creationComplete="init();" />
</mx:Application>