Saturday, December 10, 2011

Google DevFest Taipei 2010 note

Google DevFest Taipei 2010 note



Note: Introduction Android


  • Building for Multiple Form Factors


use DIP ! virtual pixel !

flot dipsize - dipsize * (new DisplayMetrics()).density


  • Which version


widget 1.5
quick search 1.6
data backup 2.2


  • What is new in Froyo ?


DM

C2DM

Don't : polling

Do : push when change

com.google.android.c2dm.intent.REGISTER (Device to C2DM server)

#https://android.api5.google.coom/c2dm/send/ (app server to C2DM server)

project : Android Cloud to Device Messaging Framework

install to SD
App Data Backup

onRestore()

Be cautious when back up sensitive data
Be sure to synchronsize !

Market license

Referral Tracking
INSTALL_REFFERAL !!

#http://code.google.com/mobilepr3





  • HTML 5



  • Open Social !

OAuth

use token instead of passwd
Atom

Must have ; id ,updated, author !
link ??

pubsubhubbub @@ real time data !

Publisher Hub Subscriber


Pub <- Sub, Pub give Sub a Hub !

Sub go to Hub via POST
and give Hub a return POST URL for auth !  (to avoid DoS)

Pub give information to Hub Hub for proxy server ??

 Salmon-protocol.org

cross server !
Source <-> Aggregator,  sync comment to different server(web service)

#actvitystrea.ms

atom for blog, actvitystrea for SNS ! contain Actor Action and OBJ




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