The document outlines the key features and components of an operating system for mobile devices based on a modified Linux kernel, including its applications, middleware, and graphics support. It highlights the development environment, programming languages, UI framework, and the structure of the application package (APK) along with essential development resources. Additionally, it mentions market share and compares Android with Apple's SDK while providing links to developer documentation and related literature.

1. Jesse Anderson

2.  Operating System for Mobile Devices
 Based on modified Linux kernel
 Middleware
 Set of Applications
 E-mail client
 Browser
 Released under Apache License

4.  Dalvik Virtual Machine
 Webkit for Browser and Embeddable Object
 2D and 3D (Open GL) graphics
 SQLite for databases
 Still Image Support (JPEG, GIF, PNG, BMP)
 Video Support (H.263, H.264 AVC, MPEG-4
SP)
 Audio Support (AAC, MP3, MIDI, Ogg Vorbis,
PCM)

5.  Bluetooth
 EDGE and 3G
 WIFI (802.11 b/g/n)
 WiMAX
 Camera
 GPS
 Compass
 Accelerometer

6.  Optimized for low memory
 Register Based not Stack Based
 Multiple VM instances at once
 Compiled into dex files and apk package
 JIT Compilation added in Android 2.2
 No Java ME, AWT or Swing classes

7. Android iPhone SDK
Programming
Languages
Java, C, C++, App
Inventor, Mono,
Interpreted
Objective C
App Market Wild West Gilded Cage
App Submission Immediate Reviewed (HIG, legal)
Device Makers Many Apple
SDK Free/OSS ($25 listing) $100
Development Platforms Windows, Mac, Linux Mac OSX
Distribution Restrictions None Provisioned
Market Share 13% 24.4%
UI Framework Android Cocoa Touch

8.  Application Package apk
 Contains all data and resources needed
 Components
 Activity
 Visual user interface for one focused endeavor
 Service
 Background task like music playback
 Broadcast Receivers
 Receive and react to broadcast announcements
 Content Providers
 Makes data available to other applications

9.  Activates Activities, Services, or Broadcast
Receivers
 Move between Activities in program
 Initiate a phone call
 Send an E-mail
 Get broadcasts when battery is low

11.  Programmatically
 Using POJO (Plain Old Java Objects)
 Using XML (Preferred)
 Layouts
 Menus
 Values
 Resource Arrays
 Colors
 Dimensions
 Strings
 Styles

12.  Download and install Eclipse
 Download and install Android SDK
 Download Android Platforms and
Components
 Install ADT plug-in for Eclipse
 http://developer.android.com/sdk/eclipse-adt.html

13.  Hello World as a POJO example

14.  R Class
 Provides constants for accessing resources in
strings.xml, colors.xml, layouts, etc
 Generated code
 Automatically handled on Eclipse using Android plug-
in
 Manually using Android tools

15.  UI Object from Layout
 Provide Resource ID
 android:id="@+id/uiObject“
 (cast) findViewById(R.id.uiObject);
 Strings
 @string/myString
 getString(R.string.myString);
 Colors (ARGB)
 @color/myColor
 getResources().getColor(R.color.myColor);

16.  Hello World Using XML
 Hello World Using XML and Resources

17.  Activities show a user interface
 New activities must be registered in the
AndroidManifest.xml file
 Intents move between activities

18.  Hello World Using Intents and new Activities

19.  Android Developer Documentation
 http://developer.android.com
 Hello Android by Ed Burnette
 Beginning Android by Mark L. Murphy
 Google I/O Videos
 http://developer.android.com/videos
 http://code.google.com/events/io/2010/sessions.html