Flex中如何改变TextInput输入框得到焦点时边框颜色的例子

themeColor属性，改变TextInput输入框得到焦点时边框的颜色。

让我们先来看一下Demo（

）：

Download: main.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">

<mx:Script>
<![CDATA[
import mx.events.DropdownEvent;
import mx.events.ColorPickerEvent;

private function colorPicker_change(evt:ColorPickerEvent):void {
textInput.setStyle("themeColor", evt.color);
}

private function colorPicker_close(evt:DropdownEvent):void {
focusManager.setFocus(textInput);
}
]]>
</mx:Script>

<mx:ApplicationControlBar dock="true">
<mx:Form styleName="plain">
<mx:FormItem label="themeColor:">
<mx:ColorPicker id="colorPicker"
change="colorPicker_change(event);"
close="colorPicker_close(event);" />
</mx:FormItem>
</mx:Form>
</mx:ApplicationControlBar>

<mx:TextInput id="textInput" />

</mx:Application>