The document describes how to set up the development environment for Android application development. It outlines the system requirements including supported operating systems and development environments. It provides steps to install the Java Development Kit (JDK), Eclipse IDE, Android SDK, and ADT plugin. It also describes setting the SDK path in Eclipse preferences. The document contains screenshots of setting up the environment in a lab.

1. Android Application Development
Environment Setup
Ahsanul Karim
ahsanul.karim@sentinelbd.com
Workshop: Day 1 Part 3 Sentinel Solutions Ltd.
http://www.sentinelbd.com
http://androidstream.wordpress.com

2. Setting up Development Environment
System Requirements
Supported OS
1. Windows XP (32-bit), Vista (32- or 64-bit), or Windows 7
(32- or 64-bit)
2. Mac OS X 10.5.8 or later (x86 only)
3. Linux (tested on Ubuntu Linux, Lucid Lynx)
Supported Development Environment (Eclipse IDE based)
1. Eclipse 3.4 (Ganymede) or greater/Eclipse Classic (versions
3.5.1 and higher)
2. JDK 1.5 or 1.6
3. ADT Plugin

3. Setting up Development Environment(Contd.)
To set up the development environment, we need:
1. Java Development Kit (JDK 1.5+, 1.6 is preferable)
2. Eclipse IDE
3. Android SDK

4. Setting up Development Environment (Contd.)
Android SDK Link: http://developer.android.com/sdk/index.html
Download and Install the SDK starter package from the table above
(Highlighted)

5. Setting up Development Environment (Contd.)
Android SDK Setup (3)
3. ADT Plugin for Eclipse
ADT Plugin:
Android Development Tools (ADT) is a plugin for the Eclipse IDE for
1. extending the capabilities of Eclipse to set up new Android projects
2. creating an application UI
3. adding components based on the Android Framework API
4. debugging your applications using the Android SDK tools
5. exporting signed (or unsigned) APKs in order to distribute your application
We’ll see the 5 points gradually during development

6. Setting up Development Environment (Contd.)
Android SDK Setup (4)
4. Installing the ADT
1. Start Eclipse, then select Help >
Install New Software....
2. Click Add, in the top-right
corner.
3. In the next window, you'll see a
list of the tools to be
downloaded. Click Next.
4. Read and accept the license
agreements, then click Finish.
5. When the installation
completes, restart Eclipse.

7. Setting up Development Environment (Contd.)
Android SDK Setup (5)
5. Set SDK path
1. Start Eclipse, then select
Window > Preferences
2. Browse and show the path of
Android SDK.
3. Press Apply and OK.
Development Environment Setup is now completed!

8. Setting up Development Environment (Contd.)
In Our Lab (1)

9. Setting up Development Environment (Contd.)
In Our Lab (2)
First we install JDK
We have already done that

10. Setting up Development Environment (Contd.)
In Our Lab (3.1)
We’ll setup Eclipse Indigo
Stand-alone Eclipse: just decompress and run eclipse.exe
You can create a shortcut in the desktop for eclipse.exe

11. Setting up Development Environment (Contd.)
In Our Lab (3.3)
We’ll setup Eclipse Indigo
Choose your WorkSpace

12. Setting up Development Environment (Contd.)
In Our Lab (3.5)
We’ll setup Eclipse Indigo

13. Setting up Development Environment (Contd.)
In Our Lab (3.6)
We’ll setup Eclipse Indigo
We’ll become familiar to our new IDE gradually and I swear you’ll start loving it

14. Setting up Development Environment (Contd.)
In Our Lab (4.1)
We’ll setup ADT Plugin

15. Setting up Development Environment (Contd.)
In Our Lab (4.2)
We’ll setup ADT Plugin

16. Setting up Development Environment (Contd.)
In Our Lab (4.3)
We’ll setup ADT Plugin

17. Setting up Development Environment (Contd.)
In Our Lab (4.4)
We’ll setup ADT Plugin

18. Setting up Development Environment (Contd.)
In Our Lab (4.5)
We’ll setup ADT Plugin

19. Setting up Development Environment (Contd.)
In Our Lab (4.6)
We’ll setup ADT Plugin

20. Setting up Development Environment (Contd.)
In Our Lab (4.7)
We’ll setup ADT Plugin
Adding ADT Pluging is DONE… You’ll now get a message

21. Setting up Development Environment (Contd.)
In Our Lab (5.1)
We’ll setup android SDK
After restarting Eclipse we get:
Don’t forget to ask me about the red marks

22. Setting up Development Environment (Contd.)
In Our Lab (5.2)
We’ll setup android SDK
SDK and AVD Manager: If we click on it:
So, we have to set the location of Android SDK and show it to our IDE
To do so….

23. Setting up Development Environment (Contd.)
In Our Lab (5.3)
We’ll setup android SDK

24. Setting up Development Environment (Contd.)
In Our Lab (5.4)
We’ll setup android SDK

25. Setting up Development Environment (Contd.)
In Our Lab (5.5)
We’ll setup android SDK

26. Setting up Development Environment (Contd.)
In Our Lab (5.6)
We’ll setup android SDK

27. Setting up Development Environment (Contd.)
In Our Lab (5.6)
We’ll setup DDMS
Now We are Ready

28. Let’s say “Hello” to the Android World!

29. Let’s Go Deep…
Created Project has the following structure
Project Structure
-Source (src)
-Generated Class (gen)
-Android 1.6 library
-Assets (assets)
-Resource(res)
-drawable-hdpi
-drawable-ldpi
-drawable-mdpi
-layout
-values
-AndroidMenifest.xml
-default.properties

30. Let’s Go Deep… (Contd.)
To run the app in emulator, we have to do the following steps:
1. Create AVD (Android Virtual Device)
2. Create Run Configuration
3. Run the Application
To run the app in device, we have to do the following steps:
1. Install device driver
2. Connect device through USB
3. Create Run Configuration
4. Run the Application
We’ll run the app in emulator for now

31. Let’s Go Deep… (Contd.)
1. Create AVD (Android Virtual Device)
Use Android SDK & AVD Manager to create AVD

32. Let’s Go Deep… (Contd.)
2. Create Run Configuration
1. Create a Run
Configuration
2. Browse and select
the project to run

33. Let’s Go Deep… (Contd.)
3. Select AVD & Run
Click Run to start AVD/emulator

34. Let’s Go Deep… (Contd.)
Result in Emulator
Now its time to analyze how it works

35. Project Structure…
Created Project has the following structure
Project Structure
-Source (src)
-Generated Class (gen)
-Android 1.6 library
-Assets (assets)
-Resource(res)
-drawable-hdpi
-drawable-ldpi
-drawable-mdpi
-layout
-values
-AndroidMenifest.xml
-default.properties

36. Project Structure (Contd.)
-Source (src)
We have used only one class here which is an Activity named HalloActivity. We’ll
describe about Activity in detail with lifecycle shortly. For now we can consider
Activity as Android analogue for the window or dialog in a desktop application. It
can load view from xml layout (here main.xml under res/layout folder)
In the HelloActivity class the view
of the Activity is set from main.xml
given below

37. Project Structure (Contd.)
-res/layout/main.xml
1. UI Layout can be defined from source code using View or by layout xmls.
2. The layout xml can be generated by visual tool given by ADT

38. Project Structure (Contd.)
-res/drawable
1. From Android 1.6 to support different screen sizes and screen densities graphic files
are kept in 3 different folders drawable-hdpi, drawable-ldpi and drawable-mdpi
2. In our current project, they contain only default icon file with different dimensions
to support devices with different screen resolution.
-assets
Holds other static files you wish packaged with the application for deployment
onto the device. In this project, we have none
-gen/R.java -values/strings.xml

39. Project Structure (Contd.)
-AndroidMenifest.xml
XML file describing the application being built and what components –
activities, services, etc. – are being supplied by that application