1. Android Training
By: Adham Enaya
twitter : @adhamenaya
fb.: adham.enaya
a.it@hotmail.com

2. Session 2: Prepare Android
Development Environment
Sunday, March 27, 2012

3. Downloading development
environment
• Eclipse IDE(Google-supported)
– Download: http://www.eclipse.org/downloads
• Android SDK
– SDK Manager
– Android Platform
– SDK samples …etc.
– Emulator and debugger
– Download: http://developer.android.com/sdk/index.html
• Android Development Tools(ADT)
– Install plug-in: http://dl-ssl.google.com/android/eclipse
Open source Training (Android Course)
March 29, 2012
Adham Enaya

4. Configuring the development
environment
1. Installing the ADT plug-in:
– Go to Help menu in eclipse -> Choose Install new
software -> Add -> Set the name and location of
the plug-in .
2. Go to Window -> Preferences.
3. Select Android -> Set the location of android
SDK folder.
Open source Training (Android Course)
March 29, 2012
Adham Enaya

5. Android SDK & AVD Manager
• Helps to:
– Browse the installed packages.
– The available packages to install.
– To create Android virtual devices
– It is connected directly with Google servers to
install packages from them.
– You can download :
• Android platforms, documentation, samples tools..
• Third party Add-ons, i.e. Google APIs to use Google
Maps in the application.
Open source Training (Android Course)
March 29, 2012
Adham Enaya

6. Creating Android Virtual Device (AVD)
• AVD: is and emulator instance modeling the
actual device.
1. Go to window -> Android SDK and AVD
Manger.
2. Select Virtual Devices-> enter the AVD
properties:
1. Device name.
2. Target platform ( i.e. Android 2.3- level 9).
3. You can choose a specific hardware(i.e.
Open source Training (Android Course)
March 29, 2012
Adham Enaya

7. Create Hello World Application (1)
• In Eclipse -> New -> Project -> Android
Project.
• Enter Project Name.
– Choose Create New Project in workspace.
• Choose the build target ( The android
platform you app runs on !)
• Click Next.

8. Create Hello World Application (2)
• Enter Application info:
– Application Name ( User-friendly name).
– Package Name (At least 2 identifiers i.e
adham.android).
– Check create Activity to create a UI for the
application.
– Set the Minimum SDK that you app will run on.
– Finish !

9. Project Anatomy (1)
• src : a folder contains on the java source code
for the project.
• R.java in gen folder:
– R.java is eclipse generated java file.
– We will not modify it anytime!
– Contains memory references for all project
resources i.e. :
• GUI objects, layout, strings values.
– Helps in accessing the res objects easily.

10. Project Anatomy (2)
• Android 2.3: jar files contains the core android
libraries.
• assets: contains the resources for the
application i.e. database or external file.
• bin: contains any external libraries.

11. Project Anatomy (3)
• res:
– drawable : contains the images for the application
i.e. application icon.
– drawable-hdpi : contains images for high
definition screens.
– drawable-ldpi : contains images for low definition
screens.
– drawable-mdpi : contains images for medium
definition screens.

12. Project Anatomy (4)
• layout: contains the xml- definition for the
GUI layout and it’s components.
• values : contains the xml files the represents
the constants values for the application i.e.
strings.xml to store all constant strings.

13. Project Anatomy (4)
• AndroidManifest.xml: contains all information
about the application.
– The package name of the application.
– Application version (<major>.<minor>.<point> )
– Application icon.
– Application name from strimgs.xml.
– android:minSdkVersion: specifies the minimum
version of the OS on which the application will
run.

14. Project Anatomy (5)
– Definition of all activities in the application.
• The action for the intent filter is named
android.intent.action.MAIN to indicate that this
activity serves as the entry point for the
application.
• The category for the intent-filter is named
android.intent.category.LAUNCHER to indicate
that the application can be launched from the
device’s Launcher icon.

15. Any Question ?
Best, 
Open source Training (Android Course)
March 29, 2012
Adham Enaya