Android 4.1

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(Redirected from Android Jelly Bean)

Android 4.1 Jelly Bean (API 16)
Google announced Android 4.1 (Jelly Bean) at the Google I/O conference on June 27, 2012. Based on Linux kernel 3.0.31, Jelly Bean was an incremental update with the primary aim of improving the functionality and performance of the user interface. The performance improvement involved "Project Butter", which uses touch anticipation, triple buffering, extended vsync timing and a fixed frame rate of 60 fps to create a fluid and "buttery-smooth" UI.[1] Android 4.1 Jelly Bean was released to the Android Open Source Project on July 9, 2012,[2] and the Nexus 7 tablet, the first device to run Jelly Bean, was released on July 13, 2012.
Version Release date Features Image(s)
4.1 July 9, 2012
  • Smoother user interface:
    • Vsync timing across all drawing and animation done by the Android framework, including application rendering, touch events, screen composition and display refresh.
    • Triple buffering in the graphics pipeline.
    • CPU input boost.
    • Synchronizing touch to vsync timing.
  • Enhanced accessibility.
  • Bi-directional text and other language support.
  • User-installable keyboard maps.
  • Expandable notifications.
  • TLS v1.1 and v1.2 support added.
  • Ability to turn off notifications on an application-specific basis.
  • Shortcuts and widgets can automatically be re-arranged or re-sized to allow new items to fit on home screens.
  • Bluetooth data transfer for Android Beam.
  • Tablets with smaller screens now use an expanded version of the interface layout and home screen used by phones.[3]
  • Improved camera application.
  • Multichannel audio.[1]
  • The Fraunhofer FDK AAC codec becomes standard in Android, adding AAC 5.1 channel encoding/decoding.
  • USB audio (for external sound DACs).[1]
  • Audio chaining (also known as gapless playback).[1][4][5]
  • Ability for other launchers to add widgets from the application drawer without requiring root access.
Android 4.1 on the Galaxy Nexus.jpeg
Android 4.1 home screen
4.1.1 July 9, 2012[6]
  • Fixed a bug on the Nexus 7 regarding the inability to change screen orientation in any application.


4.1.2 October 9, 2012[7]
  • Lock/home screen rotation support.[8]
  • One-finger gestures to expand/collapse notifications.[9]
  • Bug fixes and performance enhancements.

Android 4.2 Jelly Bean[edit]

Android 4.2 Jelly Bean (API 17)
Google was expected to announce Jelly Bean 4.2 at an event in New York City on October 29, 2012, but the event was cancelled due to Hurricane Sandy.[10] Instead of rescheduling the live event, Google announced the new version with a press release, under the slogan "A new flavor of Jelly Bean". Jelly Bean 4.2 was based on Linux kernel 3.4.0, and debuted on Google's Nexus 4 and Nexus 10, which were released on November 13, 2012.[11][12]
Version Release date Features
4.2 November 13, 2012[13]
  • Lock screen improvements, including widget support (removed again in 2014)[14] and the ability to swipe directly to the camera.[15]
  • Notification power controls ("Quick Settings").
  • "Daydream" screensavers, showing information when idle or docked (later renamed to "screen saver" following the launch of the unrelated Google Daydream VR platform in 2016).[14]
  • Multiple user accounts (tablets only).
  • Rewritten Bluetooth stack, switching from Bluez to Broadcom open source BlueDroid,[16] allowing improved support for multiple displays and wireless display (Miracast).
  • Native right-to-left, always-on VPN and application verification.[17] A new NFC stack was added at the same time.[16]
  • Accessibility improvements: triple-tap to magnify the entire screen, pan and zoom with two fingers. Speech output and Gesture Mode navigation for blind users.
  • New clock application with a built-in world clock, stop watch and timer.
  • All devices now use the same interface layout, previously adapted from phones on 4.1 for smaller tablets (with centered software buttons, the system bar at the top of the screen, and a home screen with a dock and centered application menu), regardless of screen size.
  • Increased number of extended notifications and Actionable Notifications for more applications, allowing users to respond to certain notifications within the notification bar and without launching the application directly.
  • SELinux support.
  • Premium SMS confirmation.[18]
  • Group Messaging support.


4.2.1 November 27, 2012[19][20]
  • Fixed a bug in the People application where December was not displayed on the date selector when adding an event to a contact.[21]
  • Added Bluetooth gamepads and joysticks as supported HIDs (Human interface devices).


4.2.2 February 11, 2013[22]
  • Fixed Bluetooth audio streaming bugs.[23]
  • Long-pressing the Wi-Fi and Bluetooth icons in Quick Settings now toggles the on/off state.
  • New download notifications, which now show the percentage and estimated time remaining for active application downloads.
  • New sounds for wireless charging and low battery.
  • New Gallery application animation allows faster loading.
  • USB debug whitelist.
  • Bug fixes and performance enhancements.

Android 4.3 Jelly Bean[edit]

Android 4.3 Jelly Bean (API 18)
Google released Jelly Bean 4.3 under the slogan "An even sweeter Jelly Bean" on July 24, 2013, during an event in San Francisco called "Breakfast with Sundar Pichai". Most Nexus devices received the update within a week, although the second-generation Nexus 7 tablet was the first device to officially ship with it.[24] A minor bug fix update was released on August 22, 2013.[25]
Version Release date Features
4.3 July 24, 2013[26]
  • Bluetooth low energy support.[27]
  • Bluetooth Audio/Video Remote Control Profile (AVRCP) 1.3 support.
  • OpenGL ES 3.0 support, allowing improved game graphics.[27]
  • Restricted access mode for new user profiles.[27]
  • Filesystem performance improvement by running the fstrim command while a device is idle.[28]
  • Dial pad auto-complete in the Phone application.[27]
  • Volume for incoming calls (ringtone) and notification alerts is no longer adjustable separately.
  • Improvements to Photo Sphere.[29]
  • Reworked camera UI, previously introduced on Google Play edition phones.[30]
  • Addition of "App Ops", a fine-grained application permissions control system (hidden by default).[31]
  • SELinux enabled by default.
  • 4K resolution support.[32]
  • Numerous security updates, performance enhancements, and bug fixes.[33]
  • System-level support for geofencing and Wi-Fi scanning APIs.
  • Background Wi-Fi location still runs even when Wi-Fi is turned off.
  • Developer logging and analyzing enhancements.
  • Added support for five more languages.
  • Changed digital rights management (DRM) APIs.
  • Right-to-left (RTL) languages now supported.[27]
  • Clock in the status bar disappears if it is selected as a lockscreen widget.
  • Native emoji support.[34]


4.3.1 October 3, 2013[35]
  • Bug fixes and small tweaks for the Nexus 7 LTE.[36]
  1. 1.0 1.1 1.2 1.3 "Android 4.1 for Developers". Android Developers. Retrieved February 9, 2013.
  2. Queru, Jean-Baptiste. "Android 4.1 in AOSP". Retrieved July 12, 2012.
  3. "Confirmed: Android 4.1 uses different layouts for different tablet sizes". ComputerWorld. Archived from the original on January 19, 2013. Retrieved July 8, 2012.
  4. "Issue 3461: Implement Gapless Playback of consecutive audio files". Retrieved November 12, 2012.
  5. "Android 4.1 finally adds gapless music playback to stock music apps". Pocketables.com. June 29, 2012. Retrieved June 30, 2012.
  6. "refs/tags/android-4.1.1_r1 – platform/system/core – Git at Google". android.googlesource.com.
  7. "Android 4.1.2 rolling out for Nexus 7". The Verge. October 9, 2012. Retrieved October 9, 2012.
  8. "Android 4.1.2 brings homescreen rotation to devices". GigaOM. October 9, 2012. Retrieved October 9, 2012.
  9. "New Feature In Android 4.1.2: Expanding/Collapsing Notifications With One Finger (Video)". Android Police. October 9, 2012. Retrieved October 9, 2012.
  10. "Monday's Google event in NYC canceled due to Hurricane Sandy". Android Central. October 27, 2012. Retrieved February 19, 2014.
  11. "Android 4.2 Jelly Bean lands on Nexus 7". Know Your Mobile. November 14, 2012. Archived from the original on November 17, 2012. Retrieved November 14, 2012.
  12. "Google Releases Nexus 4, Nexus 10 and Android 4.2". IGN. November 13, 2012. Retrieved November 16, 2012.
  13. "Android 4.2 adds gestue typing, wireless TV display, multiple user support on tablets, and more". The Verge. October 29, 2012. Retrieved October 29, 2012.
  14. 14.0 14.1 Cite error: Invalid <ref> tag; no text was provided for refs named CWnostalgia
  15. "Android 4.2 Jelly Bean brings all-new photography powers". TechRadar.com. October 29, 2012. Retrieved November 12, 2012.
  16. 16.0 16.1 Klug, Brian (May 19, 2013). "The Next Version of Android – Some of What's Coming". anandtech.com. Retrieved October 28, 2014.
  17. "Jelly Bean". Android developer portal. Retrieved July 2, 2014.
  18. "Exclusive Android 4.2 Alpha Teardown, Part 2: SELinux, VPN Lockdown, And Premium SMS Confirmation". Android Police. October 17, 2012. Retrieved November 12, 2012.
  19. "refs/tags/android-4.2.1_r1 – platform/system/core – Git at Google". android.googlesource.com.
  20. "(Changelog) What's New In Android 4.2.1 (JOP40D)". Android Police. November 27, 2012. Retrieved November 27, 2012.
  21. "Sorry, Santa – Google Cancels December In Android 4.2". Android Police. November 17, 2012. Retrieved November 27, 2012.
  22. "Breaking: Android 4.2.2 (Build JDQ39) Update Rolling Out To GSM Galaxy Nexus, Nexus 7, Nexus 10". Android Police. February 11, 2013. Retrieved February 12, 2013.
  23. "Android 4.2.2 brings Bluetooth audio fixes to Nexus phones and tablets". Ars Technica. February 12, 2013. Retrieved February 12, 2013.
  24. "Google Announces Android 4.3, Update Rolling Out Today". Tom's Hardware. July 24, 2013. Retrieved July 25, 2013.
  25. "Android Open Source Project now has latest 4.3 fixes for most Nexus hardware". Engadget. August 22, 2013. Retrieved August 22, 2013.
  26. "Android 4.3 announced, rolling out to Nexus devices today". The Verge. July 24, 2013. Retrieved July 24, 2013.
  27. 27.0 27.1 27.2 27.3 27.4 "Introducing Android 4.3, a sweeter Jelly Bean". Official Android Blog. July 24, 2013. Retrieved July 30, 2013.
  28. "Android 4.3 supports TRIM, improves performance on Nexus devices". Engadget. July 30, 2013. Retrieved July 30, 2013.
  29. "Another Android 4.3 Change: Photo Spheres Look A Lot Better Now". Android Police. July 25, 2013. Retrieved July 28, 2013.
  30. "Android 4.3 And Updated Camera UI Spotted On A Nexus 4 At Thailand Mobile Expo". Android Police. May 24, 2013. Retrieved July 30, 2013.
  31. "App Ops: Android 4.3's Hidden App Permission Manager, Control Permissions For Individual Apps!". Android Police. July 25, 2013. Retrieved July 30, 2013.
  32. "Android 4.3 source code reveals support for 4K resolution". Engadget. July 26, 2013. Retrieved July 30, 2013.
  33. "An In-Depth Look At The Big (And Small) Additions To Android Jelly Bean 4.3". Android Police. July 24, 2013. Retrieved July 25, 2013.
  34. Jaymar Cabebe (July 25, 2013). "Google Android 4.3 Jelly Bean Release Date, Price and Specs – CNET". CNET. CBS Interactive.
  35. "Suddenly, A Wild Android 4.3.1 Appears – LTE Nexus 7 Receiving Android 4.3.1 OTA (JLS36I)". Android Police. October 3, 2013. Retrieved October 4, 2013.
  36. "Factory Image And Binaries Are Now Available For The Nexus 7 LTE Android 4.3.1 Update (JLS36I)". Android Police. October 8, 2013. Retrieved October 9, 2013.