Introduction to Android

Post on 26-Jun-2015

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By : Bobby Jindal

Transcript of Introduction to Android

Mobile Application Development (MAD)

Intro to Android platform

Platform architecture

Application building blocks

Development tools

Android Apps.

Smart Phones◦Internet access anywhere◦Social networking

Millions of mobile users

Open standards

Open software platform for mobile

development

A complete stack – OS, Middleware,

Applications

An Open Handset Alliance (OHA) project

Powered by Linux operating system

Fast application development in Java

Open source under the Apache 2 license

List Of Android Devices

1.5 (Cupcake)

1.6 (Donut)

2.0 / 2.1 (Eclair)

2.2 (Froyo)

2.3 (Gingerbread)

3.0 (Honeycomb Gingerbread)

 ? (Ice Cream)

Why Android ..? Browsing Multi-notification Endless personalization Market Google integration Open Source Open to carriers

• Develop technologies that will significantly

lower the cost of developing and distributing mobile devices and services

• Devoted to advancing open standards for mobile devices.

• Application framework• Optimized graphics :3D - OpenGL ES

1.0• SQLite - for data storage• Web Kit - Integrated web browser• Dalvik - Java Virtual Machine• Connectivity - Bluetooth, Wi-Fi, GPS • Media support• GSM Telephony• Rich development environment

• Email client, SMS program, calendar, maps(googles), browser, contacts, and others.

• written using the Java programming language.

• Can replace built in apps.

Views such as lists, grids, text boxes, buttons, and even an embeddable web browser

Content Providers that enable applications to access data from other applications (such as Contacts), or to share their own data

A Resource Manager, providing access to non-code resources such as localized strings, graphics, and layout files

A Notification Manager that enables all apps to display custom alerts in the status bar

An Activity Manager that manages the life cycle of applications and provides a common navigation backstack

Android SDK provides the tools and APIs necessary to begin developing applications on the Android platform using the Java programming language

Download Android SDK Corehttp://code.google.com/android/download.html

To Develop with Eclipse IDE, we can add the plugin - Android Development Tools (ADT) https://dl-ssl.google.com/android/eclipse/

1-13

Apps can invent and broadcast their own Intent

Think of Intents as a verb and object; a description of what you want doneE.g. VIEW, CALL, PLAY etc..

System matches Intent with Activity that can best provide the service

GMail

Contacts

Home

Blogger

Chat

Client component makes a request for a specific action

“Pick photo”

Picasa

System picks best component for that action

Blogger

Photo Gallery

Development requirements 

• Java

• Android SDK

• Eclipse IDE (optional)  

 

- Easy to customize the Google Android

platform

  - Android is a multi-process system, in which each application (and parts of the system) runs in its own process. Most security between applications and the system is enforced at the process level through standard Linuxfacilities, such as user and group IDs that are assigned to applications.

• How background app interact with users

• Consistent notification presentation