Vincent ANDROID

8/8/2019 Vincent ANDROID

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VINCENT SARTHOS7 IT

ROLL NO: 58


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Open Handset AllianceIntroduction To AndroidIntroduction To The Platform

Android FeaturesAndroid ArchitectureAnatomy of Android ApplicationDevelopment ToolsLife Cycle Of An Android ApplicationPros... & Cons...Some Android Phones

Conclusion


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A Business Alliance.Est. 2007, led by Google,open source.

Main product: AndroidPlatform based on opensource license.

Enthusiastic support from

Industry : both equipmentmakers and networkoperators.

OHA LOGO


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Software stack for mobile devices that includesan O S , middleware and key applications.

A cutting-edge mobile user experience.

A world-class software stack for buildingapplications.

An open platform for developers, users &industry.


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F ull phone software stack including applications .

Designed as a platform for software development.

Android is open .

Android is free.

Community support .

100% Java Phone.


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Integrated browser based on the open source WebKit engine

SQL ite f or relational data storage

Media support f or audio, video, and still image f ormats(MPEG4, H.26 4, MP3, AAC , A MR, MIDI,JPEG,JPG, PNG, GIF) .

Dalv ik Virtu al Mach ine : optimized f or mobile devices

Optimized graphics-2D & 3D graphics library.

SOFTWARE FEATURES


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Cellular networking : GSM, EDGE, 3G , E V- DO,UMTS(hardware dependent)

LAN : B luetoot h , and Wi- Fi (hardware dependent)

G raphics Hardware A cceleration

C am er a , GPS and Co mpass (hardware dependent)

Tou

ch sc

reenand acc

elero

meter

f or motion sensing

HARDWARE FEATURES


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Manages the Lifecycle Of Applications .

Keeps track of all applications .

Java language abstraction on the top level services .

APIs for calling applications.

Share data with other applications.

ACTIVITY MANAGER

PACKAGE MANAGER

WINDOWS MANAGER

TELEPHONY MANAGER

CONTENT PROVIDERS


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To store localized string ,bitmaps, etc....

Generate a set of buttons and lists.

To customize display alerts.

Instant Messaging Protocol

RESOURCE MANAGER

VIEW SYSTEM

NOTIFICATION MANAGER

XMPP SERVICE


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Linux Version 2.6

Security, Memory & Process Management.

A bstraction layer b/w hardware &software.

Efficient computing resource management.

Stable and proven OS for mobile platform.


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There are four building blocks for an Android application: Activity

-a single screen.Intent Receiver- to execute in reaction(predefined action) to an externalevent(eg: Phone Ring)Service-code that is long - lived and runs without a UI(eg: MediaPlayer)Content Provider-an application's data to be shared with other applications


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The Android SDK includes a variety of custom tools that helpyou to develop mobile applications on the Android platform.Three of the most significant tools are: -

Android Emulator - A virtual mobile device that runson our computer -use to design, debug, and test ourapplications in an actual Android run -time environment.

Android Development Tools Plugin -for the EclipseIDE adds powerful extensions to the Eclipse integratedenvironment.

Dalvik Debug Monitor Service (DDMS) -Integratedwith Dalvik - this tool let us manage processes on an

emulator and assists in debugging.


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An unusual and fundamental feature - process'slifetime is not directly controlled by the application itself.

Deciding factors:- how important.- overall memory available.

Importance Hierarchy C riteria to determine whichprocesses should be killed when system is low onmemory.


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Foreground Process -required for what the user iscurrently doing.

Visible Process -holding an Activity - visible to the useron -screen but not in the foreground(on pause)

Service Process -holding a Service - not directly visibleto the user - relevant tasks

B ackground Process -holding an Activity - not visible tothe user -can kill at any time( stopped)

Empty Process -doesn't hold any active applicationcomponents (eg:as a cache to improve start -up time)


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Open. A ll applications are equal.Breaking down boundaries.

Fast & Easy development.

Security.Open source.Login.

ADVANTAGES

DISADVANTAGES


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Open, free development platform based on Linux andopen source.

Automatic management of the application life cycle.

Tons of built-in services out of the box.

High quality graphics and sound.

Portability across a wide range of current and futurehardware due to DVM.


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H TC Dream.Motorola H eron.General Mobile DSTL1H TC MagicH

TC

Tattoo.H TC H ero.LG Etna.Sony Ericsson XPERIA x3.

Samsung 17500.Motorola C LIQ/DEXT.Lenovo Ophone.

H TC Dream

H TC Magic

H TC H ero


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Android platform is open to all: industry, developers andusers.

Android is going to revolutionize the mobile O S marketdue to its openness & economy .

Various applications & services supported by Android

makes it a huge success.

Google Android is stepping into the next level ofM obile Internet .


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www.android.comwww.wikipedia.orgwww.android.com - Android Official Webpagewww.openhandsetalliance.com/ - OH A Webpage

www.androidwiki.com Android Wiki


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T HANK Y OU!&

Vincent ANDROID

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