For those to have a quick in technical and business insight of android and to promote open source I am uploading this presentation that I have delivered in multiple institutions.

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2. FAHAD ALI SHAIKH
Mobile Wizard
www.mobistry.com
www.sileria.com http://twitter.com/mobistry

3.  Introduction to Mobile Application Development
 Mobile Native vs. Mobile Web Applications
 Open Handset Alliance
 Let’s Do Java
 Welcome to Android
 Hello World Application
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4.  CIS NED Graduate
 3+ years experience in developing software
 Mobile Wizard @ SILERIA Inc. LA. USA
 Asp.net 3.5, Silverlight 3, Drupal, Android, Socket
Programming.
 Passionate Technology Trainer
 Technology Advocate
 Mixed Martial Arts Enthusiast
 Google fahad ali shaikh for more 
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6.  Smart phones, PDAs, Handheld devices etc.
 Pre-installed apps
 Downloaded by used from app-stores
 mobile software distribution platforms
 Makes simple mobile device a professional business phone by
creating easy, user friendly and dynamic apps
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7.  Popular for business expansion.
 High interest in developing mobile apps for their smart phones
like IPhone, Android, Blackberry, Windows mobile etc.
 Mobile is one of the most successful consumer products
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8. New member in
the club
Main Frame Server Workstation Notebook
Smart Phone
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9.  Informational
◦ Weather, Area-guide, Finance, Location-based etc
 Data-Entry
◦ Business Records, Medical Records, Health and Fitness Data etc
◦ Sending information to server for aggregation
 Multimedia
◦ Camera, Audio, Video etc.
 Shopping
◦ M-Commerce, Price Comparers etc.
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10.  Social-Networks and Email
◦ IM, MySpace, Facebook, Gmail etc.
 Communication
◦ Skype, VoIP, SMS, Voice Mail, Google-Talk etc.
 Business Productivity
◦ Ledgers, Spreadsheets, Document Management, Inventory
Control etc.
 Utilities
◦ Notepad, Organizer, Alarm etc.
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11.  Travel and Entertainment
◦ 2D and 3D games, Traveling Guides etc.
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12.  Symbian • Moblin
◦ S40, S60 • Maemo
 Google Android • MeeGo (Moblin + Maemo)
 J2ME • Brew
 Apple IPhone • JavaFX Mobile
 Windows Mobile • Ubuntu Mobile
 Windows Phone 7
 Blackberry
 Palm
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13.  Mobile Native Apps
◦ Built completely using native platform API (Android, IPhone etc.)
 Light Weight (Hybrid) Apps
◦ Native API + Web Components (WebKit Browser, web services)
 Mobile Web Apps
◦ Completely on cloud
◦ Internet connections is mandatory
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15. • Native apps have access to low level hardware/APIs like
OpenGL and full access to the OS
• Native apps are generally faster and more fun to use
• Native apps can easily take advantage of a smart
phone’s GPS or camera etc.
• Native apps have better debuggers and emulators
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16.  Must be online
◦ Only works with internet connectivity
 Lacking API Power
◦ The web app always lacks the power of native API
 Limited hardware
◦ It is technically possible to access some smart phone hardware
from a web but it is not as seamless
 Optimizing look and feel
◦ Various mobile style sheets for various phone screens
◦ Browser war
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18.  A business alliance of 80 firms and vendors for developing open
standards for mobile devices
 Member firms include Google, HTC, Dell, Intel, Motorola, QUALCOMM, Texas
Instruments, Samsung, LG, T-Mobile, Nvidia, and Wind River Systems
 Established on 5 November 2007, led by Google with 34 members including
mobile handset makers, application developers, some mobile carriers and chip
makers
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19. 1 billion people on Internet
1.5 billion TV sets 3 billion mobile phones
• The Open Handset Alliance share this vision for changing the
mobile experience for consumers
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20.  Android, the flagship software of the alliance, is based on an open
source license and competes against mobile platforms
from Apple, Microsoft, Nokia, HP etc
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26.  Platform Independent
◦ Write a code in one operating system (Windows 7) and
executing the code in another operating system (Linux)
◦ WORA ( Write Once Run Anywhere)
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27.  How is it platform independent?
◦ Bytecode
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28.  The Java compiler produces an intermediate format called bytecode
Java Program Java ByteCode
Compiler
 Bytecode is not machine code for any real computer
 Bytecode is machine code for a model computer
 This model computer is called the Java Virtual Machine
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29.  A Java Interpreter is required to execute the bytecode on a real
computer
 A Java Interpreter converts the bytecode into machine code
 You can run bytecode on any computer that has a Java
Interpreter (JRE) installed!
◦ Only have to compile once
◦ Can distribute the same bytecode to everyone
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30. ByteCode
(.class)
Source Code JavaC executable file (.obj,
( .Java) .dex)
JavaC Compiler
Java Virtual Machine
JVM
JIT Compiler
Java Interpreter
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31. • Different types of JVM are available on different operating
systems
• Same .class files can run on various platforms
• This is the way bytecode executes Java programs
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32.  Object Oriented
◦ Everything is an object, everything hidden behind objects,
objects can take static/dynamic forms
 Massive Library
◦ Using Java’s tremendous library essentially everything is
possible
 Portability
◦ The Java environment is immensely portable and can
consistently run applications on a wide range of devices
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33.  Community at your fingertips
◦ A large culture of open source applications
 Jobs
◦ There is a shortage of competent Java Programmers
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35.  A complete modern embedded operating system
 A cutting edge mobile user experience
 A world class software stack for building applications
 An open platform for developers, users and industry
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36.  Freedom for innovation
◦ Open source, open platform
 Excellent Multitasking
 A complete software stack for development including
key applications
 Android is free
 100% Java Phone
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37.  July 2005
◦ Google acquired Android Inc
 5 Nov 2007
◦ Open Handset Alliance formed
◦ Android is the first product of OHA
 12 Nov 2007
◦ OHA released a preview of Android
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38. • 2.0/2.1 (Eclair)
• 2.2 (Froyo)
• 2.3 (Gingerbread)
• 3.0 + (Honeycomb) (Tablet-Oriented)
Upcoming
• Ice-cream sandwich
– a combination of Gingerbread and Honeycomb into a
"cohesive whole”, possible release by October/November
2011
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39. Applications
Native Applications Extended Applications
Middleware
(Services, Libraries, Frameworks etc.)
Kernel
(Device Drivers, Power Management, Memory Management, Security etc.)
Hardware
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41.  Includes a set of core libraries that provides most of
the functionality (Java)
 Every Android application runs in its own process
 Dalvik VM executes files in the .dex format
 Device can run multiple VMs efficiently
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47. Smart Phones
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49. • Android SDK
• JDK (JRE + Java SDK)
• IDE with Android plugin
• Eclipse (Google’s Recommended and Tools Supported)
• NetBeans IDE (Award Winning IDE)
• IntelliJ IDEA (My favourite)
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50. Creating the Hello World Application
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51. visit www.google.com
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