ANDROID TRAINING LESSON 1

8:32 AM Fighttech 1 Comments

I. Agenda

1. References
2. Tools
3. Android SDK
4. Creating a Project
5. Project Components

• XML
• R Class
• Layouts
• Strings
• Manifest File

II. References

• This lesson is a brief overview of some major concepts

• Developer’s Guide

http://developer.android.com/guide/index.html

• API Reference

http://developer.android.com/reference/packages.html

III. Tools

• Phone

• Eclipse ( http://www.eclipse.org/downloads/ )

 - Android Plugin (ADT)

• Android SDK ( http://developer.android.com/sdk/index.html )

- Install everything except Additional SDK Platforms, unless you want to
IV. Android SDK

• Once installed open the SDK Manager
• Install the desired packages
• Create an Android Virtual Device (AVD)

 V. SDK Manager 

SDK Manager

VI. AVD
VII. Creating a Project
VIII. Project Components

• src – your source code
• gen – auto-generated code (usually just R.java)
• Included libraries
• Resources

 - Drawables (like .png images)
 - Layouts
 - Values (like strings)

• Manifest file

IX. XML

• Used to define some of the resources

 - Layouts (UI)
 - Strings

• Manifest file

• Shouldn’t usually have to edit it directly, Eclipse can do that for you Preferred way of creating UIs

- Separates the description of the layout from any actual code that controls it
 - Can easily take a UI from one platform to another
X. R Class

• Auto-generated: you shouldn’t edit it

• Contains IDs of the project resources

• Use findViewById and Resources object to get access to the resources

 - Ex. Button b = (Button)findViewById(R.id.button1)
 - Ex. getResources().getString(R.string.hello));