The document provides an overview of mobile application development, differentiating between mobile native and web applications, as well as discussing the Open Handset Alliance's role in advancing mobile standards. It highlights the increasing popularity of mobile apps across various platforms, outlines the benefits and limitations of native and web applications, and details the features of the Android operating system. Additionally, it emphasizes Java's portability and object-oriented nature, alongside the tools available for developing Android applications.

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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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