Learn Flex 4 new features and find tutorials on Flex 4.

Flex 4

The Flex 4 is open source framework for building Rich Internet (RI) Application. In this section we will see the features of Flex 4.

The Flex 4 is open source framework which allows the developers to write applications which runs in Flash enabled browsers. The Flash player is available for almost all the browsers. So, if you develop your application in Flex 4, your user's should be able to run the application in almost all the major browser. The Flex 4 applications are compiled into .swf file and then distributed. It then runs on Flash enabled browsers.

Here are the major features and changes in Flex 4

1. Integration with adobe Catalyst
2. Spark component architecture is major enhancement. It includes all the libraries to build user interface for the applications. It includes data grids, buttons, layouts etc.
3. MXML 2009: The Flex 4 components are included in new package, so it has got a new name space. So, you can use Flex 3 components along with Flex 4 components. Following example defines both MXML 2009 and Halo component:
   <s:Application
     xmlns:fx="http://ns.adobe.com/mxml/2009"
     xmlns:s="library://ns.adobe.com/flex/spark"
     xmlns:mx="library://ns.adobe.com/flex/halo">
   
4. Improved view stack
5. FXG Support
6. Skinning Enhancements - Major enhancement is added into Flex 4 Skinning. It is much easy to use.
7. Updated Layout Model
8. Flash Builder 4 - Commercial IDE for easy and fast development of Flex 4 based applications.
9. Compiler Performance
10. New Text Capabilities

More Tutorials on Flex 4

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Flex ArrayCollection
ArrayCollection provides more functionalities than an Array.

 

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