MXML

MXML
Filename extension	.mxml
Developed by	Adobe Systems
Initial release	March 2004
Type of format	User interface markup language
Extended from	XML

MXML is an

rich web applications, with products such as Apache Flex

.

Adobe Systems, which acquired Macromedia in December 2005, gives no official meaning for the acronym MXML. Some developers suggest it should stand for "Magic eXtensible Markup Language" (which is a backronym

). It is likely that the name comes from the MX suffix given to Macromedia Studio products released in 2002 and 2004, or simply "Macromedia eXtensible Markup Language".

MXML is used mainly to declaratively lay out the interface of applications and can also be used to implement business logic and internet application behaviors. It can contain chunks of ActionScript code, either when creating the body of an event handler function, or with data binding where the curly braces ({) syntax is used.

MXML is often used with Flex Server, which dynamically compiles it into standard binary

Flash Builder

IDE (formerly Adobe Flex Builder) and free Flex SDK can also compile MXML into SWF files without the use of a Flex Server.

There is also a

PEAR package called XML_MXML

, which is a framework to build Adobe Flex applications.

MXML is considered a proprietary standard due to its tight integration with Adobe technologies. It is like

SVG

. However, there do exist third party vendor plugins for Flex Builder that are capable of generating a result other than a SWF file from Flex applications, for instance native mobile applications.

Example source code

A

Hello World

example:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
                layout="absolute" backgroundGradientColors="[#000011, #333333]">
   <mx:Label text="Hello World!" verticalCenter="0" horizontalCenter="0" fontSize="48" letterSpacing="1">
      <mx:filters>
         <mx:GlowFilter color="#ffffdd"/>
      </mx:filters>
   </mx:Label>
</mx:Application>

Example source code

References