ABSTRACT

This is a Flex application that features only mx components. The main tag belongs to this family, and the defined namespace refers only to components included in the Flex 3 library.

<s:WindowedApplication xmlns:fx=“https://ns.adobe.com/mxml/2009” xmlns:s=“library://ns.adobe.com/flex/spark” xmlns:mx=“library://ns.adobe.com/flex/mx”>

</s:WindowedApplication>

Don't get confused by the name, WindowedApplication. It is the same as above but the package is different (s and not mx). This means we are in the “realm” of spark, where we can use both spark and mx components.