Android application development

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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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Android application development

  1. 1. 1
  2. 2. FAHAD ALI SHAIKH Mobile Wizard www.mobistry.comwww.sileria.com http://twitter.com/mobistry
  3. 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 3
  4. 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  4
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  6. 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 6
  7. 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 7
  8. 8. New member in the clubMain Frame Server Workstation Notebook Smart Phone 8
  9. 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. 9
  10. 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. 10
  11. 11.  Travel and Entertainment ◦ 2D and 3D games, Traveling Guides etc. 11
  12. 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 12
  13. 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 13
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  15. 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 15
  16. 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 16
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  18. 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 18
  19. 19. 1 billion people on Internet1.5 billion TV sets 3 billion mobile phones• The Open Handset Alliance share this vision for changing the mobile experience for consumers 19
  20. 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 20
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  26. 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) 26
  27. 27.  How is it platform independent? ◦ Bytecode 27
  28. 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 28
  29. 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 29
  30. 30. ByteCode (.class)Source Code JavaC executable file (.obj,( .Java) .dex) JavaC Compiler Java Virtual Machine JVM JIT Compiler Java Interpreter 30
  31. 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 31
  32. 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 32
  33. 33.  Community at your fingertips ◦ A large culture of open source applications Jobs ◦ There is a shortage of competent Java Programmers 33
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  35. 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 35
  36. 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 36
  37. 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 37
  38. 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 38
  39. 39. Applications Native Applications Extended Applications Middleware (Services, Libraries, Frameworks etc.) Kernel(Device Drivers, Power Management, Memory Management, Security etc.) Hardware 39
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  41. 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 41
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  47. 47. Smart Phones 47
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  49. 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) 49
  50. 50. Creating the Hello World Application 50
  51. 51. visit www.google.com 51

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