4.x Ice Cream Sandwich
Android 4.0 – codenamed Ice Cream Sandwich – was previewed at the May 2011 Google I/O event,[51] and officially launched at the Galaxy Nexus and Ice Cream Sandwich release event on 19 October 2011.[52] The SDK for Android 4.0 was publicly released on 19 October 2011.[53] Google's Gabe Cohen stated that ICS was "theoretically compatible" with any Android 2.3.x device in production at that time.[54] The source code for ICS became available on 14 November 2011, three days before the Galaxy Nexus was released.[55] New features included:[56][57][58]
- Virtual buttons in the UI, in place of capacitive or physical buttons
- Separation of widgets in a new tab, listed in a similar list to apps
- Easier-to-create folders, with a drag-and-drop style
- A customizable launcher
- Improved visual voicemail with the ability to speed up or slow down voicemail messages
- Pinch-to-zoom functionality in the calendar
- Offline search, a two-line preview, and new action bar at the bottom of the Gmail app
- Ability to swipe left or right to switch between Gmail conversations
- Integrated screenshot capture (accomplished by holding down the Power and Volume-Down buttons)
- Improved error correction on the keyboard
- Ability to access apps directly from lock screen (similar to the HTC Sense 3.x)
- Improved copy and paste functionality
- Better voice integration and continuous, real-time speech to text dictation
- Face Unlock, a feature that allows users to unlock handsets using facial recognition software
- New tabbed web browser, allowing up to 16 tabs
- Automatic syncing of browser with users' Chrome bookmarks
- Modern Roboto font
- Data Usage section in settings that lets users set warnings when they approach a certain usage limit, and disable data when the limit is exceeded
- Ability to shut down apps that are using data in the background
- Improved camera app with zero shutter lag, time lapse settings, panorama mode, and the ability to zoom while recording
- Built-in photo editor
- New gallery layout, organized by location and person
- Refreshed 'People' app with social network integration, status updates and hi-res images
- Android Beam, a NFC feature that lets user exchange web bookmarks, contact info, directions, YouTube, etc.
- Hardware acceleration of the UI[59]
- Resizeable widgets – already part of Android 3.1 for tablets, but new for cellphones[60]
- Wi-Fi Direct[61]
- 1080p video recording for stock Android devices
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