SIX MONTHS ON AIR A Look at Skimmer and Lessons Learned Chris Black and Minh Vu

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OUTLINE Upfront decisions Image caching SQLite migrations Re-using view components Memory fragmentation Tips & tricks Wrap up / Q.A.

WHY AIR? Better user experience Image caching Local storage Notifications

WHY PureMVC? Developer ramp-up time Documentation Lightweight Separation of view from data More Later...

IMAGE CACHING Loaded with images Reduce bandwidth usage Image Manager class BulkLoader Binary dataFormat type

SQLite Store large amount of data Realtime filter search MigrationSync

SQLite Migration

SIMILAR LOOK / FEEL

PureMVC

SIMILAR LOOK / FEEL Time is money Switching data sources Flex for AIR ActionScript for web Tortoisesvn

MEMORY FRAGMENTATION Memory consumption Clean tear down of views Flex Profiler Fragmentation in AIR Forcing GC Object Pooling

TIPS & TRICKS

ADMIN PRIVLEDGES

ADOBE AIR UPDATE FRAMEWORK Part of AIR 1.5 SDK Requires new installation: Change in application ID Version number formatting 1.1 vs 01.01 Security certificate

RELEASE NOTES

ERROR LOGGING

WINDOWS AUTHENTICATION The server twitter.com at Twitter API requires a username and password. private function twitterRequest (url : String):URLRequest { var result:URLRequest = new URLRequest (url); if (this.authorizationHeader){ result.authenticate = false; // Most Important Line of Code!!! result.requestHeaders = [this.authorizationHeader]; } return result; } link

CLEARING YOUR ELS Each Adobe AIR application has its own encrypted local store. The encrypted local store can only be accessed from the application security sandbox. Data persists even after un-installing the application. http://www.adobe.com/devnet/air/ajax/articles/encrypted_local_store.html

HTML CONTENT No chromless No alpha transparency link

Resources > Kick starting the garbage collector > Memory fragmentation > Blackcj.com > Thunderbolt > Fallon Brainfood: Skimmer > Skimmer Application

QUESTIONS?