Android 4.0 Ice Cream Sandwich

The version history of the Android operating system began with the release of version 1.0 in September 2008. Android is a mobile operating system developed by Google and the Open Handset Alliance. Android has seen a number of updates since its original release. These updates to the base operating system typically fix bugs and add new features. Generally, each version is developed under a code name based on a dessert item. The code names were released in alphabetic order: Cupcake, Donut, Eclair, Froyo, Gingerbread, Honeycomb, Ice Cream Sandwich.




Ice Cream Sandwich was previewed at the May 2011 Google I/O event, and officially launched at the Galaxy Nexus and Ice Cream Sandwich release event on 19 October 2011. The SDK for Android 4.0 was publicly released on 19 October 2011. Gabe Cohen from Google said that it is "theoretically compatible" with any Android 2.3.x device currently in production. The source code for this version is scheduled to be released after the Galaxy Nexus ships.

Features include

• 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 Power and Volume-Down buttons)
• Improved error correction on the keyboard
• Ability to access apps directly from lock screen (similar to 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 websites, contact info, directions, YouTube, etc.
• Hardware acceleration of the UI
• Resizeable widgets, already part of 3.1 but new for cell phones.
• Wi-Fi Direct
• 1080p video recording for vanilla android (was already possible for most flavors of android)