Introduction to Android

Introduction to AndroidMurat AYDIN

STM-GDG Ankara

About Me

• Android Developer and blogger in his free time

www.ottodroid.net

• Senior Software Developer at work

• GDG Ankara member

www.gdgankara.org www.androiddeveloperdays.com

• Author

www.androiddeveloperdays.com

History

• Android Inc. founded by Nick SEARS, Andy RUBIN, Rich

MINER, Chris WHITE in 2003

• Google acquired Android Inc. in 2005

• OHA (Open Handset Alliance) consortioum was formed in

2007

• Android Beta SDK Released 2007

Market Share

Android Versions

Android Dashboardhttps://developer.android.com/about/dashboards/index.html

Android Where?

• Smartphones

• Wearables

• TV

• Auto

ART

• AOT VS JIT

• Performance

• Battery Life

Choose Your IDE

Source

• developer.android.com

• androidweekly.net

What is the difficulty?

How?

• Supporting different languages

• Supporting different screens

• Supporting different versions

• Use Android Support Library

Every screen is generally an Activity

There are many Activities in an App

A Sample Activity

Activity Life Cycle

Screen Designs by Layout XML Files

Intents are used for starting an Activity

You can also call predefined functionalities with Intents

AndroidManifest.xml

• Package Name

• Activities

• Intents

• Permissions

• App versions

• App target and minimum SDK

• …

Sample AndroidManifest.xml

Permissions

Resources

• Animations res/anim

• Colors res/color

• Drawables res/drawable

• Layouts res/layout

• Menu res/menu

• Strings res/values

• Styles res/values

Layouts

Shared Preferences

Background Jobs

Logcat

Gradle

Proguard

• Shrinking

• Optimization

• Obfuscation

What Else?

• BroadcastReceivers

• Services

• SQLite

• Media

• Location

• Sensors

• App Widgets

Questions?

• [email protected]

• @maydintr

• +MuratAydin