Comparing iOS and Flash development.

1. 5 Ways iOS is better and worse than Flash Arpit Mathur Philadelphia Flex User Group

2. Some introductions… Software Engineer at Comcast Innovation Labs Flash/Flex developer for 5 years Experience with very different UI technologies including Java Swing/AWT, SWT, JavaScript/DHTML, etc Developer on the XfinityTV Application

3. Setting the stage Xcode ~ Flex Builder Interface Builder ~ Flash IDE Objective C ~ ActionScript Core Graphics ~ flash.graphics.* Core Animation ~ TweenLite / fl.transitions.* XIBs ~ Flash Symbols UIKit ~ Flex / Fl Component Framework

4. iOS Application Architecture Application (UIApplicationDelegate) XIBs View Controllers (UIViewController) Models Views (UIViews)

5. Quick Example

6. The Good

7. #1: Enforced MVC

8. UIView

9. UIViewController

10. #2: NSNotificationCenter

11. #2: NSNotificationCenter

12. BEWARE OVERUSE !!!

13. #3 User Interface Experience Framework

14. #3 User Interface Experience Framework

15. “Make Designing the right way the path of least resistance.”

16. #4 Animation Blocks and Core Animation

17. Core Animation Layer Backed (cache’s the last appearance of the view) Potentially thousands of layers Filters, Transitions OpenGL backed Don’t clip to bounds by default! While animating, it’s the cached image that’s moving around. So unlike Flash, you cant interact with it.

18. #5 Objective C Gravy Class + Interface Declarations Enums Messaging null objects (mixed feelings) Key Value Observing (a-la AS2 watch)

19. The Bad

20. #1: Device Provisioning http://www.bunnyhero.org/2011/02/21/an-ios-dev-comic/

21. #2: No guaranteed constructor Init InitWithNibName InitWithFrame InitWithRect InitWithCoder

22. #3: Memory Management

23. Retain Copy Object Assign

24. #4: Touch Event Propagation

25. #5: Tooling Device testing against multiple OS versions Interface Builder craziness Window management .projfile conflicts Folders in Xcode Download size

26. Links http://goo.gl/ZBsYC

27. Thanks Twitter: @arpit Blog: http://arpitonline.com/blog/