Android Platform/Android development process presentation at Stanford Open Source

1. Android+Amzonca+Zxing=?
By Gene Leybzon
http://www.facebook.com/profile.php?id=574038581

3. Android
Android is the first
free, open source,
and fully
customizable mobile
platform.

4. Android Platform
Applications
Application Framework
Libraries
Linux Kernel
Mobile Device(s)

5. Android Applications
Phone
Browser
Contacts
SMS
User Developed Applications

6. Android Application Framework
Activity Manager
Window Manager
Telephony Manager
Location Manager
Notification Manager

7. Android Libraries
Open GL
SSL
WebKit
SQL Lite

8. Android Linux Kernel
Linux version 2.6
Network
Security
Memory…

9. Android Mobile Devices

10. Future of Android
Q4 2008: Localization (German)
Q4 2008: Support for multiple access point nodes
Q1 2009: Input method
framework
Q1 2009: Input method engines
Q1 2009: Localization(French, Italian, es_es, zh_TW, Ja, NL, CZ)

11. Deep Dive
Into Android
Application
Development

12. Development Process Overview
Download/Install SDK
http://code.google.com/android/download.html
Install Eclipse IDE 3.3
http://www.eclipse.org/downloads/
Develop the application
Sign the app
Debug & Test
Publish to marketplace

13. Developing Applications
Remember your goal
Know building blocks *
Know Java
Know the process *
Be creative

14. Building Blocks
Android Manifest
Activity
View
Intent and Intent Filters
Services
Notifications
Content Providers

15. Android Manifest
Is an XML file
Application properties
Activity
Permissions
Instrumentation
Intent and Intent Filters
Receiver
Service
Content Provider

16. android.app.Activity
Object that has lifecycle
May or may not have interact
with end-user
Have state
Can save persistent state
Can be foreground or background

17. Activity Lifecycle

18. android.view.View
Basic UI building block
Responsible for drawing UI
Process Events (key, trackball,
touch)

19. android.content.Intent
Describes operation to be performed
Is a glue between activities
Describes desired action and data
necessary to perform the action

20. Intent Actions
MAIN
VIEW
PICK
EDIT

21. android.content.IntentFilter
Describes capabilities
Used for intent resolution
Describes how to handle action

22. android.content.BroadcastReceiver
Handles external events
Used for both sending and receiving
broadcasts
Described in app manifest

23. android.app.Service
Runs in the background
Does not interact with users
Declared in app manifest

24. Content Providers
Object that can store and retrieve data
Accessible by other applications
Many content providers are pre-build
by Android (Audio, Video, Contacts)

25. Notifications
Icon in the status bar
Flashing LED
Sound
Vibration

26. UI Components (demo time)

27. Practical App Example
Amazonca Barcode Reader

28. Amazonca.com

29. AMAZONCA.COM

30. AMAZONCA.COM
Barcode Database (1 Mil records)
API
Creative Commons License
Social Features

31. ZXing (“Zebra Crossing”)

32. ZXing
Barcode Decoding Library
Java
Apache License 2.0
UPC-A ,UPC-E, EAN-8, EAN-13 decoding

33. + Android + ZXing
Android
Mobile
Barcode
Reader
ZXing

34. + Android + ZXing
Android
Mobile
Barcode
Reader
ZXing

35. + + Android + Zxing + Amazonca
Android
Physical
ZXing
World to
WEB
Connection
Amazonca.com

36. + + Behind the + sign (location)
android.content.Context c = mActivity .getApplicationContext();
android.location.LocationManager lm = (LocationManager);
c.getSystemService(Context.LOCATION_SERVICE);
Location loc =
lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
Double lat = loc.getLatitude();
Double lon = loc.getLongitude();
String s = quot;lat=quot;+ lat.toString() + quot;&lon=quot; + lon.toString();

37. Demo Time

38. + + ∑ummary
Open source is mash-able
Fastest way to build a product –
maximum reuse of existing components
Pay attention to licensing:
Android - Apache Software License
ZXing - Apache Software License
Amazonca .com data - Creative Commons 3.0

39. Gene Leybzon

40. http://code.google.com/android/

41. http://code.google.com/p/zxing/

42. http://www.amazonca.com