Setting the selection highlight color on a Spark RichEditableText control in Flex 4

The following example shows how you can set the text selection highlight color on a Spark RichEditableText control in Flex 4 by setting the focusedTextSelectionColor style.

Full code after the jump.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see www.adobe.com/products/flex/. To download the latest nightly build of the Flex 4 SDK, see opensource.adobe.com/wiki/display/flexsdk/Download+Flex+4.

For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/11/07/setting-the-selection-highlight-color-on-a-spark-richeditabletext-control-in-flex-4/ -->
<s:Application name="Spark_RichEditableText_focusedTextSelectionColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:mx="library://ns.adobe.com/flex/halo">
    <s:controlBarContent>
        <s:Label text="focusedTextSelectionColor:"
                height="100%" verticalAlign="middle" />
        <mx:ColorPicker id="colorPickr"
                selectedColor="haloBlue"
                change="callLater(richEdTxt.setFocus);" />
    </s:controlBarContent>
 
    <s:RichEditableText id="richEdTxt"
            text="The quick brown fox jumps over the lazy dog."
            focusedTextSelectionColor="{colorPickr.selectedColor}"
            selectionHighlighting="always"
            width="100"
            horizontalCenter="0" verticalCenter="0"
            creationComplete="richEdTxt.selectRange(2, 16);"/>
 
</s:Application>

You can also set the focusedTextSelectionColor style in an external .CSS file or <Style/> block, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/11/07/setting-the-selection-highlight-color-on-a-spark-richeditabletext-control-in-flex-4/ -->
<s:Application name="Spark_RichEditableText_focusedTextSelectionColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009" 
        xmlns:s="library://ns.adobe.com/flex/spark" 
        xmlns:mx="library://ns.adobe.com/flex/halo">
 
    <fx:Style>
        @namespace s "library://ns.adobe.com/flex/spark";
        @namespace mx "library://ns.adobe.com/flex/halo";
 
        s|RichEditableText {
            focusedTextSelectionColor: yellow;
        }
    </fx:Style>
 
    <s:RichEditableText id="richEdTxt"
            text="The quick brown fox jumps over the lazy dog."
            selectionHighlighting="always"
            width="100"
            horizontalCenter="0" verticalCenter="0"
            creationComplete="richEdTxt.selectRange(2, 16);"/>
 
</s:Application>

Or, you can set the focusedTextSelectionColor style using ActionScript, as seen in the following example:

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2009/11/07/setting-the-selection-highlight-color-on-a-spark-richeditabletext-control-in-flex-4/ -->
<s:Application name="Spark_RichEditableText_focusedTextSelectionColor_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/halo">
    <s:controlBarContent>
        <s:Label text="focusedTextSelectionColor:"
                height="100%" verticalAlign="middle" />
        <mx:ColorPicker id="colorPickr"
                selectedColor="haloBlue"
                change="colorPickr_changeHandler(event);" />
    </s:controlBarContent>
 
    <fx:Script>
        <![CDATA[
            import mx.events.ColorPickerEvent;
 
            protected function colorPickr_changeHandler(evt:ColorPickerEvent):void {
                richEdTxt.setStyle("focusedTextSelectionColor", evt.color);
                callLater(richEdTxt.setFocus);
            }
        ]]>
    </fx:Script>
 
    <s:RichEditableText id="richEdTxt"
            text="The quick brown fox jumps over the lazy dog."
            selectionHighlighting="always"
            width="100"
            horizontalCenter="0" verticalCenter="0"
            creationComplete="richEdTxt.selectRange(2, 16);"/>
 
</s:Application>

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

2 thoughts on “Setting the selection highlight color on a Spark RichEditableText control in Flex 4

  1. This only changes the highlight background. How do i change the text color itself. For example i have black text on a white background and i want to make my selection black with white colored text. how do i do that?

Comments are closed.