Attended Google Developer Day 2010 Japan

The 28th of Sep. I attended Google Developer Day 2010 Japan (GDD) at Tokyo International Forum. I got participation right as "Super Hacker slot." I solved all of DevQuiz, but I don't think I'm a SUPER hacker haha. :P











You can read many detailed reports about GDD, so I write few topics.
If you want to know the details, find them with...
Official Site: http://www.google.co.jp/events/developerday/2010/tokyo/
Twitter: @googledevjp or #gdd2010jp
Official Photos: Picasa
and...please Google



- - - - - 8< - - - - - Memo - - - - - 8< - - - - -

To make High Performance Android Apps by Mr. Tim Bray

• Don't use I/O or networking task in UI thread.
• 25ms loss even if you issue I/O task for 1 byte
• Ping on 3G takes 108, 350, 500, 800ms
• Show a progress dialog when a process takes longer than 200ms
• If it's not fast enough, don't guess. Measure and find out why.
• Indexing makes reading fast but writing slow (SQLite)
• Use text for loging

I think these advice are useful for general user applications.


And, interesting sites Googler introduced.
HTML5 Rocks: Show Case for New Feature of HTML5
http://studio.html5rocks.com/

Fiabee: Online Storage for Backup

http://www.fiabee.com/