Monday, May 16, 2011

Notes on Android Market for Developers session at Google I/O 2011


Notes on Android Market for Developers session at Google I/O 2011

(For Google I/O Show and Tell http://www.meetup.com/seattle-gtug/events/16361982/)

- James Moore, james@restphone.com

Session video is up at http://www.google.com/events/io/2011/sessions/android-market-for-developers.html
  • Growth
    • 400k activations/day for Android devices worldwide
    • 60% of activiations are outside USA
    • He emphasized Korea and Japan
    • Up from 100k/day YOY
    • App installs
      • 8x from 2009 -> 2010
      • 2011 as of today is slightly more than all of 2010
    • Charts around 3:08 in video
  • Apps are used by Gingerbread and Honeycomb
    • New device users == heavy consumers of applications
    • graph at 6:30
  • Recent installs of apps (trending categories)
    • Games
    • Entertainment
    • Tools
    • Media
    • Travel and local
    • Transportation
  • Trending Paid apps categories (8:46)
    • Games
    • Tools
    • Personalization
    • Productivity
    • Entertainment
    • Medical
    • Comics
    • Shopping
  • New OS versions are most of the app downloads 10:32
    • They see two versions of Android dominant over time (the two change as new releases come out)
    • Today
      • 25% 2.1
      • 75% 2.2
    • developer.android.com has lots of numbers for things like versions, screensizes
    • Major vendors committed to 18 month upgrade guarantees, announced at IO2011
  • Quick demos of (14:49)
    • Pulse News
    • Angry Birds
    • Gun Brothers
    • Talked about approaches to OS version dependencies
  • 90% of Android devices hitting the market have OpenGS 2.0
  • New market tools offer better targeting
    • Devices, geography, screensize, etc
  • Coming soon
    • Multiple apks (23:01) in June
      • One app listing
      • Different screen sizes, etc
      • Multiple apks
      • Aggregates billing, rating, comments
    • Large apks 24:23
      • 4GB total
      • 50 meg apk plus 2 x 2GB bundles downloaded separtelly
  • One-click integration with AdMob, already launched
  • Lots of new lists on Marketplace
    • Trending
    • Lists by market
    • Better ways to show all apps from a developer
  • Direct carrier billing is 50% of app sales at one (unnamed) US carrier
  • In-app upgrades are working really well


These notes are up at https://docs.google.com/document/pub?id=1mWJAHkFcP_C91opc9bOKowHye3BgMwk2G-92Mia-MUA

Tuesday, May 3, 2011

Android error: java.lang.Error: packaging failure: closure resource not found

If you're seeing errors like this when you start your Android application: You've compiled with CodePro coverage enabled. Turn it off.