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Company

LOGO

ANDROID OS 

Presented By

Saumya.K

Seminar Guide

Er. P.S.Shiju Kumar 

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 TALK FLOW 

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1. INTRODUCTION

2. FEATURES

3. ARCHITECTURE

4. ANATOMY OF DEVELOPMENT

5. APPLICATIONS

6. ADAVNTAGES & DISADVANTAGES

7. VERSIONS

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 WHAT IS

ANDROID?

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 What is ANDROID?

Open Source Mobile Operating System

A Software Stack 

• Operating System• Middleware

• Applications

  Based on the Linux kernel

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 What is ANDROID?

Developed by Google and later the OHA

Java language

Possibility to write applications in other languages.

Under Apache Software License Version 2

Announced on 5 November 2007 with the founding of 

OHA

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Open Handset Alliance 

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A consortium of several companies...

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FEATURES

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Features

Application Framework Enabling reuse & replacement of component

Dalvik Virtual MachineOptimized for mobile devices

Integrated Browser

Based on open source WebKit engine

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Features

Optimized GraphicsCustom 2D graphics library 3D based on open

GLES 1.0 specification

SQliteStructured data storage

Media Support

Common audio,video and image format.MPEG4,H.264,MP3,AAC,AMR.JPG,PNG,GIF

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Features

Connectivity

Touch Screen & Accelerometer for motion sensing

Rich Development Environment

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ARCHITECTURE 

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ANDROID ARCHITECTURE 

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Linux Kernel 

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Linux Version 2.6

Proven driver model

Security, Memory & Process Management

Efficient computing resource management

Stable and proven for mobile platform

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Libraries

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Android Runtime 

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 The Dalvik Virtual Machine 

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Custom Clean Room Implementation VM

Application Portability

Runs Optimized File Format (.dex)

Java .class/.jar files converted into .dex

at build time.

Supports multiple VM processes per VM

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Application Framework 

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ANATOMY OF 

APPLICATIONDEVELOPMENT 

 

ANATOM OF APPLICATION

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ANATOM OF APPLICATIONDEVELOPMENT 

Step 1:

 Decompose prospective application into following components

o Activity- visual user interface

o Intent Receiver- e-mail inbox

o Service – task done in background

o Content Provider- share some data

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ANATOMY OF APPLICATION

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ANATOMY OF APPLICATIONDEVELOPMENT 

Step 2:

Predefine all component in AndroidManifest.xml file.

- AndroidManifest.xml file

- Build.xml – an ant file which is used to package anapplication;

- src/ - source directory

- bin/ - the output directory

R.Java file created it index to all above file

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ANATOMY OF APPLICATION

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ANATOMY OF APPLICATIONDEVELOPMENT 

SDK(Software Development Kit)

Development and debugging tools,

A set of libraries

A device emulator 

Documentation

Sample projects, tutorials, and FAQs.

Java Development Kit, Apache Ant, and Python 2.2 or later.

The only officially supported IDE is Eclipse 3.2 or later, 

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DEVELOPMENT TOOL 

Android Emulator – A Virtual Mobile Device

Android Development Tools Plugin -Eclipse IDE

Dalvik Debug Monitor Service (DDMS)

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application Life cycle 

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1. A foreground process

2. A visible process

3. A service process

4. A background process

5. An empty process

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APPLICATIONS

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APPLICATIONs

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ADVANTAGES

&DISADVANTAGES

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ADVANTAGES

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* Openness.

* All applications are equal.

* Breaking down boundaries.

* Fast and easy development.

* A better application market.

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ADVANTAGES 

* Android lets you choose your hardware.

* It lets you install custom ROMs.* Android lets you to change the settings faster.

* Google and social integration.

* More options to fit your budget.

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DISADVANTAGES

* Security * Open Source* Login * Incompetence

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VERSIONS

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Ice Cream Sandwich

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Banana Bread

Apple Pie

Cup Cake

Donut

Eclair

Froyo

Gingerbread

Honeycomb

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ANDROID 1.0

HTC Dream

Pull Down Notification

Media Player 

Google Sync

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Android 1.5

Ability to record and watch videos through

camcorder mode

Uploading videos to YouTube and pictures to

Picasa directly from the phone

Picture in Contact list

New soft keyboard with text prediction

Bluetooth A2DP&AVRCP support

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CUPCAKE 

2009 April 30

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DONUT 

Free turn by turn navigation

Gesture framework and Gesture Builder development tool

An integrated camera, camcorder, and gallery interface

Gallery now enables users to select multiple photos for deletion

Updated Voice Search, with faster response and deeper integration

with native applications, including the ability to dial contacts

Updated search experience to allow searching bookmarks, history,

contacts, and the web from the home screen

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2009 Sept 15

Eclair

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Eclair 

HTML5

Digital zoom

Microsoft Exchange support

Bluetooth 2.1

Live Wallpapers

Updated UI

Much improved keyboardCamera including white panel

froyo

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froyo

Integration of Chrome’s V8 JavaScript engine into

the Browser application

Advanced Microsoft Exchange support

Wi-Fi hotspot functionality

USB Tethering

Speed improvements

JIT implementation

Applications installation to the expandable memory

Upload file support in the browser 

Animated GIFs

GINGER BREAD

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GINGER BREAD

 New UI with new themes (Black themes save power)

Extra Large Screen Size

 NFC

New audio effectsImproved Copy and Paste functionality

Redesigned Multi Touch Software Keyboard

Audio, graphical, and input enhancements for game developer 

Download manager for long running HTTP downloads

Enhanced support for native code

Improved power management and application control

Multiple cameras

2010 December 6

HONEYCOMB 3 0

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HONEYCOMB 3.0

Multi core support

Better tablet support

Updated 3D UI

Google Talk video chat

Google eBooks

"Private browsing"

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2011 February 22

HONEYCOMB 3 1

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HONEYCOMB 3.1

Open Accessory API

USB host API

Mice, joysticks, gamepads... support

Resizable Home screen widgets

MTP notifications

RTP API for audio

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2011 May 10

Honeycomb 3 2

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Optimizations for a wider range of tablets

Compatibility display mode (zoom for fixed-sized apps)

Media sync from SD card

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Honeycomb 3.2

2011 Jul 15

ice cream sandwich

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Facial recognition (Face Unlock)

UI use Hardware acceleration

Better voice recognition (dictating/Voice typing)

Web browser, allows up to 16 tabs

Updated launcher (customizable)

Android Beam app to exchange data through NFC

Resizable widgets

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ice cream sandwich

2011 Oct 19

CONCLUSION

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CONCLUSION

Android is a disruptive technology, which was

introduced initially on mobile handsets, but has

much wider potential.

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References

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References

http://www.android.com - Android Official Webpage

http://code.google.com/android/  - Official Android Google CodeWebpage

http://www.openhandsetalliance.com/  - Open Handset Alliance

Webpage http://www.androidwiki.com  – Android Wiki

http://googleblog.blogspot.com/  - Official Google Blog

http://en.wikipedia.org/wiki/Android_(mobile_phone_platform) –Wikipedia Information

http://en.wikipedia.org/wiki/SQLite  http://en.wikipedia.org/wiki/WebKit 

http://en.wikipedia.org/wiki/Eclipse_(software) 

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