Creating an emphasized Spark Button control in Flex 4

The following example shows how you can set the emphasized button state on a Flex 4 Spark Button control by setting the Boolean emphasized property.

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 To download the latest nightly build of the Flex 4 SDK, see

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"?>
<!-- -->
<s:Application name="Spark_Button_emphasized_test"
        <s:CheckBox id="checkBox" label="emphasized" />
    <s:Button label="Spark Button"
            verticalCenter="0" />

For an example of styling the emphasized state, see “Styling an emphasized Spark Button control in Flex 4”.

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.