2.  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

3. What is the Open Handset
Alliance (OHA)?
→ It's a consortium of several
companies

5. Smart phone market

6. Versions
Name Version
Cupcake 1.5
Donut 1.6
Eclair 2.1
Froyo 2.2
Gingerbread 2.3
Honeycomb 3.0
Icecream 2.4

7. • Application Framework
• Dalvik virtual machine
• Integrated browser based on the open source
WebKit engine
• 2D and 3D graphics APIs with HW
• Sqlite (Structured data storage)
• Media Support (common audio,video and image format)
• Bluetooth, EDGE, 3G, and WiFi
• Camera, GPS, compass, and accelerometer
• Rich Development Environment

9. Write app in Java
Compiled in Java
Transformed to Dalvik bytecode
Loaded into Dalvik VM
Linux OS

10.  Activity
 IntentReceiver
 Service
 ContentProvider

11.  Android Emulator -A virtual mobile device that runs
on our computer -use to design, debug, and test our
applications in an actual Android run-time environment
 Android Development Tools Plugin -for the Eclipse
IDE – adds powerful extensions to the Eclipse
integrated environment
 Dalvik Debug Monitor Service (DDMS) -Integrated
with Dalvik-this tool let us manage processes on an
emulator and assists in debugging

12. 1. A foreground
process
2. A visible process
3. A service process
4. A background
process
5. An empty process
3/17/2013

14.  Download and Install the Android SDK and
Test the Emulator.
 Installing JDK and JRE(1.5 or above)
 Install Eclipse.
 Install ADT plugin for Eclipse
Creating HelloWorld
Application

15. New > Project… Select Android project in wizard menu

16. Main.xml>>
Main Activity>>
AndroidManifest.xml>>

17. >>Running Your First Application
Output in the emulator

18.  Resource files are bundled to .apk file archive
 Bundled by aapt tool
 One .apk file archive is a Single application

19.  Android uses proven technology like
Java, XML andLinux
 There is an initial learning effort
 Android doesn‘t have many of the limitations
of current mobile platforms
 It offers a rich API for application
development
 Android is still in beta
 Android development is fun

20. http://developer.android.com