1. Seminar Report On Android
Submitted to :- Neeraj Raheja Submitted by :- Harsh Kishor
(Asst. Professor) Roll No :- 11107111
Class :- M.Tech(CSE) 2nd Year

2. ANDROID HISTORY …..
The origins of Android
 Google acquired Android Inc. in 2005
Launch of Android SDK(Software Development Kit)
 November 2007
 1.0 (September 2008)
 1.1 (February 2009)
 1.5 (April 2009)
 2.1 (January 2010)
 2.3.4 (May 2011)
 3.2 (July 2011)
Launch of Phone
 23rd September 2008

3. INTRODUCTION
 Open software platform for mobile development
 A complete stack – OS, Middleware, Applications
 An Open Handset Alliance (OHA) project
 Powered by Linux operating system
 Fast application development in Java
 Open source under the Apache 2 license

4. OPEN HANDSET ALLIANCE
 Aim to advance open standards for mobile devices
 Members are: Handset providers, mobile operators and
software companies
 Members have promised not to lock their Android phones
 Members T-Mobile, HTC, LG, Motorola, Samsung,
Sony Ericsson and many more

5. OHA Contd ….

6. ANDROID ARCHITECTURE

7. ARCHITECTURE Contd ….
 Linux Version 2.6.x for core system services
 Android uses only “Kernel” portion in Linux
 Core Libraries
 Provides the functionality of the JAVA
Programming Language
 Android Application runs in its own process,
with its own instance of the Dalvik virtual machine
 Dalvik VM: Java based license free VM
 Register based VM, optimization for low
memory requirements
 Executes files in the Dalvik Executable (.dex)
format
 DX tool converts classes to .dex format

8. ARCHITECTURE Contd ….
 Libc: c standard lib.
 SSL: Secure Socket Layer
 SGL: 2D image engine
 OpenGL|ES: 3D image engine
 Media Framework: Core part of Android multi-media
 SQLite: Embedded database
 WebKit: Kernel of web browser
 FreeType: Bitmap and Vector
 SufraceManager: Manage difference windows for different applications

9. ARCHITECTURE Contd ….
 No limited application
 Equality of each apps.
 Easy to embedded web browser
 Parallel running

10. ARCHITECTURE Contd ….

11. PLATFORM INITIALIZATION

12. APPLICATION LIFECYCLE

13. ANDROID TOOLS
 The Android Emulator
 Implementation of the Android virtual machine
 Test and debug your android applications.
 DalvikDebug Monitoring Service (DDMS)
 Monitor and Control the Dalvikvirtual machines
 Logcat(see logged msgs)
 Android Debug Bridge (ADB)
 Manage the state of an emulator instance or Android-powered
device
 Copy files, install compiled application packages, and run shell
commands.
 Traceview
 Graphical analysis tool for viewing the trace logs from your
Android application
 Debug your application and profile its performance

14. ANDROID ADVANTAGES
 It can run multiple apps at the same time
 It keeps information visible on your home screen
 It has a better app market(1,80,000 applications)
 It gives you better notifications
 It lets you choose your hardware

15. THANK YOU