Flex中如何让TextInput被选中文本保持选中状态而不管控件是否获得焦点的例子

下面是完整代码(或点击这里察看)：

下面是main.mxml：

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/04/30/always-displaying-the-selected-text-in-a-textinput-in-flex/ -->
<mx:Application name="TextInput_getTextField_alwaysShowSelection_test"
xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">

<mx:Script>
<![CDATA[
import mx.core.UITextField;
import mx.controls.TextInput;

private function init(evt:Event):void {
var ti:TextInput = evt.currentTarget as TextInput;
var tf:UITextField = ti.mx_internal::getTextField();
tf.alwaysShowSelection = true;
}
]]>
</mx:Script>

<mx:TextInput id="textInput"
text="The quick brown fox jumps over the lazy dog."
selectionBeginIndex="4" selectionEndIndex="9"
initialize="init(event);" />
<mx:Button label="Submit" />

</mx:Application>

本文转自：http://blog.minidx.com/2009/08/27/2870.html