This document discusses Android development tools and techniques. It provides an overview of Android including its history and components. It also covers the Eclipse IDE, Android SDK, project structure, and basic app components like activities. Advanced topics like build tools, ORM mapping, dependency injection and porting techniques are presented. Tips are provided like using open source libraries, caring for legal issues, and asking for help from the developer community.

1. Android Development
by Lope Emano

2. About the author
● Android developer since 2010
● Loves open source
● Average software development skills
● Survived the "Dark Ages" of Android
Development

3. What's this talk about?
● Basic, Advanced and useful topics
● Tools used
● The speaker's experiences

4. What is Android?
● Based on the linux kernel
● Dalvik Virtual Machine
● 700,000 apps as of October 2012
● Has an active open source community

5. ● First phone sold in 2008
T Mobile G1

6. ● Usage share

7. What are the tools needed?
● Eclipse IDE
● Android SDK
● Android Plugin
● Device not needed

8. What does an Android Project look like?
● src/
Where your .java files are stored
● gen/
Where your R.java file is stored
● assets/
Where your raw resources are stored
● bin/
Where your compiled files will be stored
● res/
Where your layouts, image assets are stored

9. What does an Android Project look like?
● res/drawable
drawable-xhdpi, drawable-hdpi, drawable-mdpi
● res/layout
layouts are expressed in xml format
● res/values
colors, text copies
● AndroidManifest.xml
basically android's configuration file

10. What are the basic parts of an android app?
Activity
- Android's version of a form
- Must be mentioned in AndroidManifest.xml to be
invoked
- Has its own lifecycle
- Applications are made up of activities

12. Advanced Tools Overview
● Build Management
● ORM Mapping
● Dependency Injection
● Porting stuff from ICS to Gingerbread
● Web tools

13. Build Management
Maven
● Dependency management

14. Build Management
● Build profiles
mvn clean package -Ptest
mvn clean package -Pprod
mvn android:apk android:deploy android:run
● Archetypes/quickstarts
mvn archetype:generate

15. Build Management
Maven
● Great for teams
● Great for libraries
● Slow but reliable
● Great with Jenkins CI Server

16. O/R Mapping
ORMLite
like hibernate for android development

17. ORMLite + Maven
Want ORMLite? Use Maven!

18. Dependency Injection
Roboguice
like spring injection for android
development

19. Web Tools
● Android Asset Studio
● Action bar style generator
● Holo colors generator
● More..

20. Porting ICS to Gingerbread
Jake Wharton
○ Champion of the "Dark Ages"
○ Author of open source, ICS support projects for
android
○ Actively replies in forums and #android-dev

21. Porting ICS to Gingerbread
Actionbar Sherlock

22. Porting ICS to Gingerbread
View Pager Indicator

23. Porting ICS to Gingerbread
HoloEverywhere

24. Porting ICS to Gingerbread
Android UI Patterns

25. Tips and experiences
● Don't be afraid to do it yourself
● Be careful with legal issues
● If you don't have a senior, #android-dev will
suffice
● Android users are very nice
● More ICS users than gingerbread
● Use dips, 48dip for your clickables

26. References
http://developer.android.com
http://www.slideshare.net/mdesjardins/android-
development-the-basics
http://www.techrepublic.com/blog/app-builder/a-newbies-
guide-to-android-development/1216
http://en.wikipedia.org/wiki/Android_%
28operating_system%29