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Thursday, November 13, 2014

About Android 5.0 Lollipop (INFO)



Android 5.0 Lollipop

The Android 5.0 update adds a variety of new features for your apps, such as notifications on the lock screen, an all-new camera API, OpenGL ES 3.1, the new Material design interface, and much more.




Android 5.0 Lollipop
Welcome to Android 5.0 Lollipop—the largest and most ambitious release for Android yet!

This release is packed with new features for users and thousands of new APIs for developers. It extends Android even further, from phones, tablets, and wearables, to TVs and cars.

For a closer look at the new developer APIs, see the Android 5.0 API Overview. Or, read more about Android 5.0 below.

Material design
Android 5.0 brings Material design to Android and gives you an expanded UI toolkit for integrating the new design patterns easily in your apps.

New 3D views let you set a z-level to raise elements off of the view hierarchy and cast realtime shadows, even as they move.

Built-in activity transitions take the user seamlessly from one state to another with beautiful, animated motion. The material theme adds transitions for your activities, including the ability to use shared visual elements across activities.



Document-centric apps
Android 5.0 introduces a redesigned Overview space (formerly called Recents) that’s more versatile and useful for multitasking.

New APIs allow you to show separate activities in your app as individual documents alongside other recent screens.

You can take advantage of concurrent documents to provide users instant access to more of your content or services. For example, you might use concurrent documents to represent files in a productivity app, player matches in a game, or chats in a messaging app.

Advanced connectivity
Android 5.0 adds new APIs that allow apps to perform concurrent operations with Bluetooth Low Energy (BLE), allowing both scanning (central mode) and advertising (peripheral mode).

New multi-networking features allow apps to query available networks for available features such as whether they are Wi-Fi, cellular, metered, or provide certain network features. Then the app can request a connection and respond to connectivity loss or other network changes.

NFC APIs now allow apps to register an NFC application ID (AID) dynamically. They can also set the preferred card emulation service per active service and create an NDEF record containing UTF-8 text data.


Gameloft's Rival Knights uses ASTC (Adaptive Scalable Texture Compression) from AEP and Compute Shaders from ES 3.1 to deliver HDR (High Dynamic Range) Bloom effects and provide more graphical detail.


High-performance graphics
Support for Khronos OpenGL ES 3.1 now provides games and other apps the highest-performance 2D and 3D graphics capabilities on supported devices.

OpenGL ES 3.1 adds compute shaders, stencil textures, accelerated visual effects, high quality ETC2/EAC texture compression, advanced texture rendering, standardized texture size and render-buffer formats, and more.


Gameloft's Rival Knights uses ASTC (Adaptive Scalable Texture Compression) from AEP and Compute Shaders from ES 3.1 to deliver HDR (High Dynamic Range) Bloom effects and provide more graphical detail.

Android 5.0 also introduces the Android Extension Pack (AEP), a set of OpenGL ES extensions that give you access to features like tessellation shaders, geometry shaders, ASTC texture compression, per-sample interpolation and shading, and other advanced rendering capabilities. With AEP you can deliver high-performance graphics across a range of GPUs.

More powerful audio
A new audio-capture design offers low-latency audio input. The new design includes: a fast capture thread that never blocks except during a read; fast track capture clients at native sample rate, channel count, and bit depth; and normal capture clients offer re sampling, up/down channel mix, and up/down bit depth.

Multi-channel audio stream mixing allows professional audio apps to mix up to eight channels including 5.1 and 7.1 channels.

Apps can expose their media content and browse media from other apps, then request playback. Content is exposed through a query able interface and does not need to reside on the device.

Apps have finer-grain control over text-to-speech synthesis through voice profiles that are associated with specific locales, quality and latency rating. New APIs also improve support for synthesis error checking, network synthesis, language discovery, and network fallback.

Android now includes support for standard USB audio peripherals, allowing users to connect USB headsets, speakers, microphones, or other high performance digital peripherals. Android 5.0 also adds support for Opus audio codecs.

New MediaSession APIs for controlling media playback now make it easier to provide consistent media controls across screens and other controllers.


Enhanced camera & video
Android 5.0 introduces all new camera APIs that let you capture raw formats such as YUV and Bayer RAW, and control parameters such as exposure time, ISO sensitivity, and frame duration on a per-frame basis. The new fully-synchronized camera pipeline allows you to capture uncompressed full-resolution YUV images at 30 FPS on supported devices.

Along with images, you can also capture metadata like noise models and optical information from the camera.

Apps sending video streams over the network can now take advantage of H.265 High Efficiency Video Coding (HEVC) for optimized encoding and decoding of video data.

Android 5.0 also adds support for multimedia tunneling to provide the best experience for ultra-high definition (4K) content and the ability to play compressed audio and video data together.




Users have a unified view of their personal and work apps, which are badged for easy identification.

 Android in the workplace
To enable bring-your-own-device for enterprise environments, a new managed provisioning process creates a secure work profile on the device. In the launcher, apps are shown with a Work badge to indicate that the app and its data are administered inside of the work profile by an IT administrator.

Notifications for both the personal and work profile are visible in a unified view. The data for each profile is always kept separate and secure from each other, including when the same app is used by both profiles.

For company-owned devices, IT administrators can start with a new device and configure it with a device owner. Employers can issue these devices with a device owner app already installed that can configure global device settings.


Screen capturing and sharing
Android 5.0 lets you add screen capturing and screen sharing capabilities to your app.

With user permission, you can capture non-secure video from the display and deliver it over the network if you choose.

New types of sensors
In Android 5.0, a new tilt detector sensor helps improve activity recognition on supported devices, and a heart rate sensor reports the heart rate of the person touching the device.

New interaction composite sensors are now available to detect special interactions such as a wake up gesture, a pick up gesture, and a glance gesture.


Chromium WebView

The initial release for Android 5.0 includes a version of Chromium for WebView based on the Chromium M37 release, adding support for WebRTC, WebAudio, and WebGL.

Chromium M37 also includes native support for all of the Web Components specifications: Custom Elements, Shadow DOM, HTML Imports, and Templates. This means you can use Polymer and its material design elements in a WebView without needing polyfills.

Although WebView has been based on Chromium since Android 4.4, the Chromium layer is now updatable from Google Play.

As new versions of Chromium become available, users can update from Google Play to ensure they get the latest enhancements and bug fixes for WebView, providing the latest web APIs and bug fixes for apps using WebView on Android 5.0 and higher.


Accessibility & input
New accessibility APIs can retrieve detailed information about the properties of windows on the screen that sighted users can interact with and define standard or customized input actions for UI elements.

New Input method editor (IME) APIs enable faster switching to other IMEs directly from the input method.

Tools for building battery-efficient apps
New job scheduling APIs allow you optimize battery life by deferring jobs for the system to run at a later time or under specified conditions, such as when the device is charging or connected to Wi-Fi.

A new dumpsys batterystats command generates battery usage statistics that you can use to understand system-wide power use and understand the impact of your app on the device battery. You can look at a history of power events, approximate power use per UID and system component, and more.




Battery Historian is a new tool to convert the statistics from dumpsys batterystats into a visualization for battery-related debugging. You can find it at https://github.com/google/battery-historian.



thanks for reading !!! stay-tuned!!!


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