Posted by VitaminB | Posted in ActionScript 3.0 | Posted on 01-04-2009
Tags: ActionScrip 3, Classes
For ActionScript 3, the Flash Player has a collection of built-in classes that are hard coded into the Flash Player itself. These are located in the ‘flash’ package and are always available to any AVM2 (AS3) SWF running in Flash Player 9 or greater.
Flex 2 is built on the mx framework or the collecton of classes that belong in the ‘mx’ package. In ActionScript 2, both Flex (1) and Flash used the mx collection for things like components, transitions and animations, etc. For ActionScript 3, only Flex uses the mx framework and the classes defined within (which are separate though ofen similar to the respective AS2 version).
Flash, on the otherhand, has a new collection of classes defined in the ‘fl’ package. These classes contain the Flash Authoring components and other classes used to work with AS3 in the Flash IDE. Note that the components used in Flash and those used in Flex are not the same.
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