Android Overview

Android

• Android is an open platform, and it’s open source

• Free, no licensing required
• Develop mostly in Java and XML – C/C++ for Native development (NDK)
• Source code available SDK and core apps http://source.android.com

Key Platform Features

• Multiple Screen Sizes

• User Interface
• Concurrent Applications
• Inter-app Communication
• Speech Input
• Location and Mapping Services
• Hardware Sensors
• Native Development Kit

Multiple Devices, Single App

• Shipping 100K+ devices per day
• More devices = more business
• SDK supports: Many screen sizes/resolutions Screen density independence

Multiple Devices, Single App

Screen Size & Density Breakdown

Note: This data is based on the number of Android devices that have accessed

Android Market within a 14-day period ending on May 17th 2010

http://developer.android.com/resources/dashboard/screens.html

Application Components

 An Android application is actually a collection of several components, each defined in AndroidManifest.xml

• Activities
• Services
• Content Providers
  Broadcast Receivers

Surfacing your UI