This document provides an overview of Android development including: 1. It discusses the growth and popularity of Android with over 2 million activations per day and 750 million devices activated. 2. It covers the basic building blocks of Android apps such as activities, intents, views, services, content providers, and broadcast receivers. 3. It provides information on setting up the Android development environment in Eclipse and describes the app development lifecycle including debugging, signing, and distributing apps to marketplaces.

1. Android 101
Blrdroid Teach

2. Pranay Airan
Web application developer
@Intuit
Android Developer by choice 
Assistant organizer Blrdroid
@pranayairan

3. Bangalore Android User
Group ( www.BlrDroid.org)
• Largest open Android developer community in the country and
second largest in the world.
• Over 3800 members
• 30 meetups
• 12 Teach Events
• 4 hackathons
• Active participation in events like Droidcon, Global Android
Developer hackathon etc

4. Why Android
2 million
Android device activation per day

5. Why Android
750+ million
Android device activated till now

6. Why Android
70%
Android market share world wide

7. Android Architecture

8. Getting Started
• IDE Eclipse
• Folder Structure
• Setting your development environment
• Different tools available in eclipse

9. Android App
Building
Blocks

10. Android Manifest File
Activities
Intents
Views
Services
ContentProviders
BroadCastReceiver

11. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

12. Activities
• Provides a screen with which users
can interact
• Activity has UI.
• An app usually consists of multiple
activities
• 1 Activity is always main.
• Activity has lifecycle

13. Activity Lifecycle

14. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

15. Intents
• Intents are simple message objects which are use to
move from 1 activity to another
• Intent defines “intention” of what application want
• Intents can be use to communicate from 1 application to
another

16. Intents

17. Intents

18. Intents

19. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

20. Views
• Views are UI basic building blocks
• Know how to draw themselves
• Respond to events
• Organized as trees to build up GUIs
• Described in XML in layout
resources

21. Action Bar
UI Elements

22. Layouts
Linear Layout Relative Layout Grid Layout

23. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

24. Android Manifest
• It names the Java package for the application.
• Components of the application — the activities,
services, broadcast receivers, and content providers
that the application is composed of.
• Permissions
• Lists the library
• And more

25. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

26. Services
• Use to perform long running tasks in the
background
• No User interface
• Runs in the background for certain amount of
time
• Use in combination with broadcast often to
perform heavy operations like file upload sync
etc

27. Service Lifecycle

28. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

29. Content Providers
• Helps in managing access to structure set of data
• Content providers are the standard interface that
connects data in one process with code running in
another process
• Provide a level of abstraction for data store in any
format, in the file system, in sqllite or on network
• Android platform provides common data like contacts
calendars sms as content providers

30. Sqllite
db
File Remote
Content provider
Contact App
Activity 1.1
Activity 1.
App 2
Activity 1.1
Activity 1.
App 3
Activity 1.1
Activity 1.

31. Activities
Android Manifest File
Intents
Views
Services
ContentProviders
BroadCastReceiver

32. BroadCast Receiver
• BroadCast receiver is android components which allows
to register for system events
• Different kind of system events which do broadcast
o Battery low
o Headset plugged
o Location change
o Sms received
o Call received etc

33. Notifications
• Notifies users about events happening
in phone
• It appears as a small icon in notification
bar
• User Can interact with this notifications
• Sent via notification manager
• Example SMS, alarm, miss call

34. Android
Development
Environment

35. Eclipse
IDE/ADT

37. UI Editor

38. The
Emulator

40. Generating APK
• Android application package file is the format to
distribute and install android app
• Apk can be Signed and unsigned
• Generating signed and unsigned apk

41. Launch in marketplace
• What is required?
• Typical launch process

42. Debugging
• How to debug
• Using debug perspectives

43. Connecting your phone
• Developing without emulator
• Debugging in phone

44. Questions ??

45. Thank You
@pranayairanPranay.airan@iiitb.net
http://goo.gl/okiJp

46. Resources
• Developer.android.com
• http://www.vogella.com/android.html
• http://www.mkyong.com/tutorials/android-tutorial/
• Stackoverflow
• Books
o Hello Android
o Basic android programming by mark murphy