Android 2.2 (otherwise known as Froyo, short for Frozen Yogurt) is a version of Android that was released on 20 May 2010. Its predecessor was Android 2.1 Eclair and its successor was Android 2.3 Gingerbread.


Android 2.2 is based on Linux Kernel 2.6.32, which is a bugfix of earlier 2.6 versions, including the Kernel 2.6.29 used for Android 2.0/2.1 Éclair.

Improvements in 2.2Edit

  • Speed, memory, and performance optimizations[3]
  • Additional application speed improvements, implemented through JIT compilation[4]
  • Integration of Chrome's V8 JavaScript engine into the Browser application
  • Support for the Android Cloud to Device Messaging (C2DM) service, enabling push notifications
  • Improved Microsoft Exchange support, including security policies, auto-discovery, GAL look-up, calendar synchronization and remote wipe
  • Improved application launcher with shortcuts to Phone and Browser applications
  • USB tethering and Wi-Fi hotspot functionality[5]
  • Option to disable data access over mobile network
  • Updated Market application with batch and automatic update features[3]
  • Quick switching between multiple keyboard languages and their dictionaries
  • Support for Bluetooth-enabled car and desk docks
  • Support for numeric and alphanumeric passwords
  • Support for file upload fields in the Browser application[6]
  • The browser now shows all frames of animated GIFs instead of just the first frame only
  • Support for installing applications to the expandable memory
  • Adobe Flash support[7]
  • Support for high-PPI displays (up to 320 ppi), such as four-inch 720p screens[8]
  • Gallery allows users to view picture stacks using a zoom gesture


  • The Android 2.2.1 update was released on 18 January 2011, and included a number of bug fixes, security updates, and performance improvements.


  • The Android 2.2.2 update was released on 22 January 2011, and fixed minor bugs, including SMS rooting issues that affected the Google Nexus One.


  • The Android 2.2.3 update was released on 21 November 2011, and consisted of two security patches.

Android 2.2 PhonesEdit

  • Google Nexus One *update*
  • Motorola Droid *update*
  • HTC Evo 4G *update*
  • HTC did say that an update would be offered on some phones "sometime in 2010"
  • HTC Desire "update"
  • LG Optimus line
  • Samsung Galaxy 5

References Edit

  1. "Android Code Analysis". Retrieved June 6, 2012.
  2. "Licenses". Android Open Source Project. Open Handset Alliance. Retrieved September 9, 2012. "The preferred license for the Android Open Source Project is the Apache Software License, 2.0. ... Why Apache Software License? ... For userspace (that is, non-kernel) software, we do in fact prefer ASL2.0 (and similar licenses like BSD, MIT, etc.) over other licenses such as LGPL. Android is about freedom and choice. The purpose of Android is promote openness in the mobile world, but we don't believe it's possible to predict or dictate all the uses to which people will want to put our software. So, while we encourage everyone to make devices that are open and modifiable, we don't believe it is our place to force them to do so. Using LGPL libraries would often force them to do so."
  3. 3.0 3.1 Russakovskii, Artem Unofficially Confirmed Froyo Features, Post-Day-1 Of Google I/O Android Police. Published 20 May 2010. Web. Retrieved 28 May 2015.
  4. Russakovskii, Artem Nexus One Is Running Android 2.2 Froyo. How Fast Is It Compared To 2.1? Oh, Only About 450% Faster Android Police. Published 11 May 2010. Web. Retrieved 28 May 2015.
  5. Sorrel, Charlie Android 2.2 ‘Froyo’ Features USB, Wi-Fi Tethering Wired. Published 13 May 2010. Web. Retrieved 28 May 2015.
  6. Android Open Source Project Browser support for file upload field is coming in Froyo Google Code. Post date 4 March 2010. Retrieved 28 May 2015.
  7. Stone, Brad Google's Andy Rubin on Everything Android New York Times. Published 27 April 2010. Web. Retrieved 28 May 2015. Archive Link [1]. Archive Date 30 April 2010.
  8. API Guides Supporting Multiple Screens: Range of screens supported Android Developers. Web. Retrieved 28 May 2015.
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