ANDROID 101

SANIKA GUPTA

ABOUT ME

• MS in CS (UT Arlington)

• PhD in Human Computer Interaction

• Virtual Reality

• Augmented Reality

• User Experience (UX) / User Interface (UI) Design

AGENDA

• History of Android

• Prerequisite

• Android Studio Setup

• Android components & description

• Android Development – DEMO

• Useful learning resources

• Tips

HISTORY

• Android is a mobile operating system developed by Google, based on the Linux

kernel and designed primarily for touchscreen mobile devices such

as smartphones and tablets.

• Initially developed by Android, Inc., which Google bought in 2005

• An April–May 2013 survey of mobile application developers found that

• 71% of developers create applications for Android

• 40% of full-time professional developers see Android as their priority target

platform

• Android has over 1.4 billion monthly active devices

WHAT IS ANDROID?

• Mobile Platform

• Operating System

• Middleware

• Key applications

ARCHITECTURE

Operating System (Linux Kernel)

Memory Mgmt Resource Mgmt Driver Mgmt Power Mgmt

Android Applications (Java/C/C++/.net)

Java LibrariesNative Libraries

(OPENGLES)

Applications Framework

WHY ANDROID ?

JAVA

ANDROID STUDIO

ANDROID STUDIO

COMPONENTS & DESCRIPTION

ACTIVITY They dictate the UI and handle the user interaction to the smart

phone screen.

SERVICE They handle background processing associated with an application.

CONTENT PROVIDERS They handle data and database management issues.

EVENT Action that occurs when UI interacts with widgets

FRAGMENTS Represents a portion of user interface in an Activity.

VIEWS UI elements that are drawn on-screen including buttons, lists forms

etc.

LAYOUTS View hierarchies that control screen format and appearance of the

views.

INTENTS Messages wiring components together.

RESOURCES External elements, such as strings, constants and drawable pictures.

MANIFEST Configuration file for the application.

ACTIVITY LIFE CYCLE

INTENT

• An Android Intent can be used to perform following 3 tasks :

1. Open another Activity or Service from the current Activity

2. Pass data between Activities and Services

3. Delegate responsibility to another application. For example, you can use Intents to

open the browser application to display a URL.

Intent can be broadly classified into 2 categories:

1. Explicit Android Intent

2. Implicit Android Intent

USEFUL LEARNING RESOURCES

• Android studio developer official site :

https://developer.android.com/training/index.html

• Thenewboston videos on YouTube:

https://www.youtube.com/watch?v=QAbQgLGKd3Y&list=PL6gx4Cwl9DGBsvRxJJOz

G4r4k_zLKrnxl

• TutorialsPoint:

https://www.tutorialspoint.com/android/android_environment_setup.htm

• Search according to your need.

TIPS

• 20 hours

• Start early

• Learn by doing

• Find the team’s sweet spot

• Whenever stuck – Search Online rigorously

• Do this project in a way you’ll be proud of.

THAT’S IT FOR TODAY!____________________________________

THANK YOU