Getting the current value on a Spark Spinner control in Flex 4

The following example shows how you can get the currently selected value from a Spark Spinner control in Flex 4 by getting the value property.

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/2010/02/09/getting-the-current-value-on-a-spark-spinner-control-in-flex-4/ -->
<s:Application name="Spark_Spinner_value_test"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">
    <s:layout>
        <s:VerticalLayout paddingLeft="20" paddingRight="20"
                          paddingTop="20" paddingBottom="20" />
    </s:layout>
    <s:controlBarContent>
        <mx:Form>
            <mx:FormItem label="percentWidth:" direction="horizontal">
                <s:Spinner id="sp" minimum="0" maximum="100" />
                <s:Label text="{sp.value}" />
            </mx:FormItem>
        </mx:Form>
    </s:controlBarContent>
 
    <s:Rect id="rect" percentWidth="{sp.value}" height="100%">
        <s:fill>
            <s:LinearGradient rotation="45">
                <s:entries>
                    <s:GradientEntry color="red" />
                    <s:GradientEntry color="haloOrange" />
                    <s:GradientEntry color="yellow" />
                    <s:GradientEntry color="haloGreen" />
                    <s:GradientEntry color="haloBlue" />
                </s:entries>
            </s:LinearGradient>
        </s:fill>
    </s:Rect>
 
</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.