Introduction to Android development

Mecid Cabrayilov

Agenda

• Android development background

• Android application on Linux kernel

• Android application components

• Resourceso Drawableo UI layouts

Background

• Java and OOP

• Android SDK tools

• Eclipse IDE and ADT plugin

• APK fileo Android manifesto Dex fileo Resources

Android app on Linux kernel

• User per Application

• VM per Application

• Linux process per Application

• Sandbox per Application

Application fundamentals

• Activity

• Service

• Content Provider

• Broadcast Receiver

• Intent

Activity

• Correspond to one screen in a UI

Activity

• One Activity can start second Activity

Intent

• Component name

• Action

• Data

• Extras

Service

• Without UI

• Long time taskso Music player

o Sync with remote server

o Gtalk connection

Content provider

• Share with other applications (e.g. Contacts, SMS)

• Manage threads

• Manage transactions

Broadcast Receiver

• Component designed to respond to broadcast Intents

• Application can invent and broadcast their own intents as well

• Think of them as a way to respond to external notifications or alarms 

Resources

• ID for every resource

• UI layouts in XML

Mecid Cabrayilov

Developer @ Unimarkcmecid@gmail.comhttp://twitter.com/mecid

http://mecid.info/http://droidstyle.mecid.info/