Google DevFest Taipei 2010 note－觀察筆記

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

gs.statcounter.com
各家瀏覽器的支援程度 html5readiness.com
網頁相關資訊收集學習 caniuse.com
重要網站 html5rocks.com
投影片 goo.gl/WQOV
Notification is not a WebKit API, will it in webkit source tree ?
其他html5文章：html 好威阿

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