This document provides an overview of the Android framework, including its architecture, development process, and tools. It describes Android as an open platform for mobile devices based on Linux. The architecture uses libraries to provide functionality and is divided into sections for power management, security, drivers, and process management. Developing for Android involves using activities, intents, broadcast receivers, services, and content providers as building blocks. The document also outlines getting started with Android development using Eclipse, the SDK, emulator, and debugging tools.

1. ANDROID
FRAMEWORK
Henry Addo
Twitter: http://twitter.com/eyedol

2. WHAT WE ARE
GOING TO LOOK AT
* What Is Android?
* Architecture Overview.
* Android Software Development.
* Developer Tool Kits.
* Getting started.
* Sample Apps.
* References.

3. WHAT IS ANDROID
* An open platform for mobile computing.
* Its linux based.
* But development is in java.

4. ARCHITECTURE
OVERVIEW
* Power Management
* Security
* Drivers
* Processes Management

5. ARCHITECTURE
OVERVIEW
The libraries provide functionalities.

6. ARCHITECTURE
OVERVIEW

7. ANDROID SOFTWARE
DEVELOPMENT
* Application building blocks
* Application Model
* UI Components

8. APPLICATION BUILDING
BLOCKS
* Activities and Intents
* Broadcast Receivers
* Services
* Content Providers

9. ACTIVITIES
An activity is a screen in your
application.

10. ACTIVITY LIFE CYCLE

11. INTENTS
* An activity communicate with each
other using Intents.
* The Intent is resolved to another
Activity, by matching it against an Intent
Filter.
* Intent conveys Data and Actions.

12. BROADCAST RECEIVERS
* Listens for Intents
* Incoming calls
* Incoming SMS
* Alarms
* Network availability
changes
* Does not display UI
* Uses notifications

13. SERVICES
* Services perform long running activities.
* Services can be manual or automatic.
* Can run in process or in another process
altogether.

14. APPLICATION
MODEL
* Android Package( .apk )
* Compiled code & resources
* Must be signed just like jar.
* Task
* May span activities across several
packages and processes.

15. UI COMPONENTS
* Views
* Simple
* Edit, Button, Checkbox,Radio
* Specialized
* DatePicker, AutoComplete
* ViewGroups
* Relative, Table, Linear
* Web, Video, Map, Gallery

16. DEVELOPER
TOOLKITS
Emulator
* An emulator that runs same system
image as a device
* You could also use the developer
device.

17. DEVELOPER TOOLKITS
Eclipse Plugin - ADT

18. DEVELOPER TOOLKITS
Debugger

19. GETTING STARTED
* The famous “Hello World”
Program provided by the SDK:
*Android Manifest
* Layout file
* Activity source file

20. GETTING STARTED
* Android Manifest file

21. GETTING STARTED
* Layout file

22. GETTING STARTED
* Activity Source file

23. GETTING STARTED
* Built and Running on the
Emulator

24. GETTING STARTED
Accelerator Titanium
You don’t need java to write android apps.
http://www.appcelerator.com/

25. RESOURCES
* Android SDK:
http://developer.android.com/sdk/index.html
* GUI Designer:
http://www.droiddraw.org/
* API Documentation:
http://developer.android.com/reference/android/package-
summary.html
* Developers Mailing List:
http://groups.google.com/group/android-developers

26. REFERENCES
* Android homepage:
http://www.android.com/
* Open Handset Alliance:
http://www.openhandsetalliance.com
* Android Developers Page:
http://developers.android.com/
* Android Open Source:
http://source.android.com/

27. THANK YOU
FOR COMING