| When Flash Player 9 released in June 2006, it introduced the new scripting language, ActionScript 3, which has already taken hold in the Adobe Flex application development community. ActionScript 3 provides not only a significant enhancement in performance, but also a more robust programming model that lends itself to complex Rich Internet Application development. For web designers and developers who need to make the move to ActionScript 3 from the previous version, ActionScript 2, the learning curve has proven to be significant.
In this guide, ActionScript expert Kris Hadlock speaks squarely to the many thousands of ActionScript 2 users who need to make the leap right away. The ActionScript Migration Guide covers all of the major changes in ActionScript from version 2 to 3. The book explains the most important and fundamental changes in ActionScript drawing comparisons between the two languages both visually & contextually. With a comprehensive index and robust table of contents designers & developers will easily be able to locate the old and/or new codes with side-by-side comparisons of how to program both and the explanation of the concepts behind them.
In these pages, you'll learn how to:
- Update your code from AS2 to AS3 with step-by-step code comparisons;
- Understand the display architecture and new concepts of scope;
- Handle events using the AS3 event model;
- Create classes & packages and utilize enhanced object-oriented principles;
- Load and parse XML with E4X;
- Understand sound enhancements;
- Use some entirely new AS3 functionality, including namespace definitions, motion XML, label statements, and more. | |
