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Android Development Workshop


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Android Development Workshop - PPT

Android Development Workshop - PPT

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  • 1. ANDROIDDEVELOPMENTARCHITECTURE &BASICSKrishna Engineering College, Coimbatore
  • 2. Agenda Programming for Mobile Devices Google Android – an Introduction Android – Architecture Android – Basics Basic Code Demos Discussions
  • 3. Programming for MobileDevices Q: Why Mobile Devices are Better then Computers. The Advantages of Mobile Computing  Handheld Device access to any required information  Contacts, Calendar, Quick Notes, Photo & Video, Music…  Feature Phones, Smart Phones and PDA  Business Opportunities – Design, Development, Testing  Edutainment, Business, Infotainment, Social Networking Constraints  Small Size and Low power Handsets  Operating Systems, Screen Size, Memory, Processor,
  • 4. Mobile Operating Systems Quick Review  Symbian OS – Nokia / Samsung [Feature Phones/ Smart Phones]  I-Phone – Apple iOS  Black berry – Research In Motion [RIM] Blackberry OS  Android – Google Android OS  Windows Mobile – Microsoft Windows CE / Windows Phone 7
  • 5. The Business Market of Android Share of worldwide 2011 Q2 Smartphone sales to end users by operating system, according to Gartner. Gartner, Inc. (NYSE: IT) is an information technology research and advisory firm headquartered in Stamford, Connecticut, United States.
  • 6. Google Android – AnIntroduction Originally released in 2008 Open Source Platform - Android Open Source Project (AOSP) – from Google Code Project Hardware Support – Intel, ARM, HTC, Motorola and Samsung Googles proprietary applications - Maps, Calendar, and Gmail, and a full HTML web browser [a different version of Google Chrome]. Android App Store – User Generated Apps Jan 2010 – Nexus One Phone with Android OS – by Google Inc.
  • 7. Android Version History 2.0 (Eclair)  New web browser,  Updated User interface  Support for HTML5 and the W3C Geolocation API.  Enhanced camera app with features like digital zoom, flash, color effects, and more. 2.1 (Eclair)  Support for voice controls throughout the entire OS.  Launcher, with 5 home-screens, animated backgrounds  Weather app, and improved functionality in the Email and Phonebook apps.
  • 8. Android Version History 2.2 (Froyo)  Performance improvements with JIT optimization and the Chrome V8 JavaScript engine, and added Wi-Fi hotspot tethering and Adobe Flash support  2.3 (Gingerbread)  Enhanced User interface, improved the soft keyboard and copy/paste features, and added support for Near Field Communication  3.0 (Honeycomb)  tablet-oriented larger screen devices and introduces many new user interface features  supports multi-core processors and hardware acceleration for graphics.
  • 9. Android Version History 3.1 (Honeycomb)  Google I/O to allow honeycomb devices to directly transfer content from USB devices 3.2 (Honeycomb)  incremental release  Optimization for a broader range of screen sizes  Load media files directly from the SD card Future releases that have been announced include:  4.0(Ice Cream Sandwich) is said to be a combination of Gingerbread and Honeycomb into a "cohesive whole". It will be released in Q4 2011
  • 10. Android – Platform Architecture
  • 11. Important features of Android VGA, 2D Graphics Support. 3D Graphics with OpenGL 2.0 Libraries Relational Data Storage with SQL-Lite Connectivity: GSM/Edge, CDMA, Bluetooth, WiMAX, Wi-Fi SMS, MMS and Push Messaging WebKit – Chrome V8 Javascript Engine Browser Audio, Video, Image – all mobile formats Streaming Media Support [RTSP] Video Calling and Voice based Features Complete Multi-Tasking
  • 12. Android Basics Sample Hello World – Code
  • 13. Android Basics View  UI Element  Button, Label, Text Field … etc Activity  Single Screen UI Intent  Method + Process to do any Task  Launch an Activity or Send a Message, etc Content Provider  Data Sharing Connectivity between apps. Service  Background Process  Local  Local services are components that are only accessible by the application that is hosting the service  Remote  remote services are services that are meant to be accessed remotely by other applications running on the device.
  • 14.  AndroidManifest.xml  AndroidManifest.xml, which is similar to the web.xml file in the J2EE world, defines thecontents and behavior of your application. For example, it lists your application’s activities and services, along with the permissions the application needs to run. Android Virtual Devices  An Android Virtual Device (AVD) allows developers to test their applications without hooking up an actual Android phone. AVDs can be created in various configurations to emulate different types of real phones.
  • 15. Code and Run
  • 16. Discussions…muthugv@ovi.com9894238404http://office.gvmuthu.com!/gvmuthu