Ghoto Hussain MS(CS) The University Of Lahore, Lahore Pakistan

1. ANDROID OS
Next Generation Mobile Computing
Presentation By
Ghoto Hussain
Company
LOGO
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2. I am
Android
I
am
Open
Source
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3. OUTLINE
1. INTRODUCTION
2. ARCHITECTURE
3. ANATOMY OF DEVELOPMENT
4. APPLICATION
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4. USING ANDROID OS
Motorola (X)
HTC G1,
Tattoo
Sony Ericsson
Suno S880 Samsung Galaxy
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5. What is ANDROID?
• Android is an Operating system and platform for mobile devices
• We can write different apps to run on mobile phones
• Android is Lightweight and full featured
• Android is an Open Source Product, we can download SDK free
• Android is under version 3 of the Apache Software License (ASL)
• A SDK is available to build, compile, test and debug user applications
• Mostly open sourced under the Apache and other open source
licenses
• Android is developed by Google and later the Open Handset Alliance
(OHA)
• Allows writing managed code in the Java language
• Good
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6. Android is based of Linux Kernel
2.6 but Android is not Linux
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7. Android Features
Application Framework
Enabling reuse & replacement of component
Dalvik Virtual Machine
Optimized for mobile devices
Integrated Browser
Based on open source WebKit engine
Optimized graphics
powered by custom 2D graphics library 3D based on openGL
ES 1.0 specification
SQlite
Structured data storage
Media Support
common audio,video and image format
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8. Android Features
GSM telephony (hardware dependant)
Bluetooth,EDGE,3G,Wi-Fi(hardware dependant)
Camera ,GPS (hardware dependant)
Rich Development Environment
SDK include device emulator, debugger, memory &
performance profiling , plugin for Eclipse IDE
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9. ANDROID ARCHITECTURE
Fig. Architecture of Android OS
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10. Linux Kernel
 Linux Version 2.6 as - h/w abstraction layer
 Proven driver model
 Security, Memory & Process Management
 Efficient computing resource management
 Stable and proven for mobile platform
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11. Libraries
 Written in C/C++ - System C Library(libc)
 Surface manager - composing different drawing screens
 Display/Graphics(SGL)-for 2D graphics
 OpenGLES – 3D Graphics Library
 Media Libraries
 SQLite –RDB engine-light weight
 LibWebCore–web browser engine–embeddable web view
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12. Techniques for saving data
 SQLite Databases: relational database library for
storing and managing complex data
 Files: you can create, write, and read files from the local
storage or external media (SD Cards)
 FileOutputStream, FileInputStream, and Resources
classes.
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13. DEVELOPMENT TOOL
 Android Emulator -A virtual mobile device that runs
on our computer -use to design, debug, and test our
applications in an actual Android run-time environment
 Android Development Tools Plugin -for the Eclipse
IDE – adds powerful extensions to the Eclipse integrated
environment
 Dalvik Debug Monitor Service (DDMS) -Integrated
with Dalvik-this tool let us manage processes on an
emulator and assists in debugging
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14. APPLICATION
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15. APPLICATION
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16. Versions of Android
Platform Codename
Android 1.5 Cupcake
Android 1.6 Donut
Android 2.1 Éclair
Android 2.2 Android 2.2
Android 2.3 Gingerbread
Android 3.0 Honeycomb
Android 4.0 Ice Cream Sandwich
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17. Android 1.0
 The Android 1.0 was launched in 23
September 2008
 The first Android device, the HTC
Dream(G1), featuring Android 1.0.
Integrated with Google Services
 Web browser to show, zoom and full
HTML and XHTML WebPages,
multiple pages show as windows
 Android Market app downloads and
updates
 Multitasking, Instant Messaging, Wifi
and Bluetooth
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18. Android 1.5(Cupcake)
 The Cupcake was launched in 30 April
2009
 Based on Linux Kernel 2.6.27
 Faster Camera start up and image capture
 Much faster GPS
 Onscreen Soft Keyboard
 Directly uploads videos to Youtube and
Picasa
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19. Android 1.6(Donut)
 The Donut was launched in 15 September
2009
 Based on Linux Kernel 2.6.29 - Quick
Search box and Voice Search
 Integrated camera, camcorder and
gallary, toggle between still and video
capture modes
 Battery usage indicator
 CDMA support
 Multilingual text-to-speech function
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20. Android 2.0(Eclair)
 The Éclair was launched in 26
October 2009
 Multiple Accounts for email and
contact synchronization
 Bluetooth 2.1 Support
 New browser User-interface and
support for HTML5
 New calendar features
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21. Android 2.2(Froyo)
 Based on Linux Kernel 2.6.32
 The Froyo was launched in 20 May,2010
 New tips widget for home screen
 Improve exchange support
 Hotspot Support
 Multiple keyboard language
 Adobe Flash 10.1.
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22. Android 2.3(Gingerbread )
 Gingerbread was launched in 6,
December 2010
 UI refinements for simplicity and
speed
 New keyboard for faster text input
 One-touch word selection and
copy/paste
 Internet Calling
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23. Android 3.0(Honeycomb) - 10 May 2011
 Honeycomb was launched in 10 May
2011
 Specially optimized for tablets and
devices with larger screen sizes
 Refined multitasking, rich notifications,
home screen customizations widgets
 Bluetooth tethering
 Built-in support for Media/Picture
Transfer Protocol
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24. Android Version Distribution
( As On July 5,2011 )
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25. CONCLUSION
Android is a disruptive technology, which was introduced
initially on mobile handsets, but has much wider potential.
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