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Android Architecture

Posted by Unknown Minggu, 05 Mei 2013 0 komentar

See more basics on Android along with interview questions

Linux Kernal :This is the bottom most layer of architecture but it is the root of the whole system.It is important for the following features.

Hardware Abstraction
Memory Management Programs
Security Settings
Power Management Software
Other Hardware Drivers (Drivers are programs that control hardware devices.)
Support for Shared Libraries
Network Stack

Native Libraries and Android Runtime:Libraries guides the device in handling different types of data.For example Media Framework Library for handling audio video formats.Android Runtime includes a set of core Java libraries.It also include Dalvik Virtual MAchine for handling dex files. some of the open source Libraries are:

Surface Manager: composing windows on the screen
SGL: 2D Graphics
Open GL|ES: 3D Library
Media Framework: Supports playbacks and recording of various audio, video and picture formats.
Free Type: Font Rendering
WebKit: Browser Engine
libc (System C libraries)
SQLite
Open SSL

Application Framework LayerAll application directly interact with this layer.They manages the basic functionalities of devices,such as voice control. Some of the important blocks of this layer are:

Activity Manager:
Content Providers:
Telephony Manager:
Location Manager:
Resource Manager:

Application LayerThis is the top most layer in the architecture.Users interact with this layer(for making calls,saving contacts,camera ..).

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Judul: Android Architecture
Ditulis oleh Unknown
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