How to Become an Android Developer

HOW TO BE AN ANDROID DEVELOPERRewarding Career Path

Want to be an Android Developer?

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Good Choice?Android is the dominant mobile platform – its ok if you want a piece of the pie?

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Modern Devices

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How Can I get in?

Create and Publish an App

How Long Will it Take?

Experts say 10 years!

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10 years Really!

I will say more like 2 years to be “Proficient”

in Android Development

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Find out in One Day!

My Course can help you create your first Android App

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It really takes time! It really takes time to master any topic Programming is not for everyone You can do it. Stop thinking about it Jump in! Test the water.

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Save Time!

Do not wait for 10 years to know

Find out in 1 Day!

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Just Do ItDesign, Develop & publish an Android App

Action brings clarity!Okason.com

App Idea

How about Your Resume App

Or

A List of your favorite snacks

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It Does not matter

Your First App will not go viral!

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About MeMy First App was never published

Second App took a whole year!

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Wrong Way

I was learning Android Development wrong way!

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Isolation I was learning

new concepts in isolation.

Too many Hello Worlds.

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Want to be an Android Developer?

ThenOkason.com

Stop Learning!

Start Coding

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Complete Apps Look for books, courses that are focused

on completing an App from start to finish.

Not just using Hello World to demonstrate concepts

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What do you need

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Development PC Code Editor IDE SDK Fingers ready to type

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Development Environment You need a computer MAC or

Mac® OS X® 10.8.5 or higher, up to 10.9 (Mavericks) 2 GB RAM minimum, 4 GB RAM recommended

Windows Microsoft® Windows® 8/7/Vista/2003 (32 or 64-bit) 2 GB RAM minimum, 4 GB RAM recommended

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Code Editor Painters use paint

Brush Carpenters use

hammer, etc. Mechanics use

spanners, etc. Programmers use

text editor, etc.

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Typing Programmers

type a lot

Programming

Writing

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Saying the same thing

Programming

Develop

Code

Build

Create

Write

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Type of Code Editors An Editor for Web Development An Editor for .Net Development An Editor for iOS Development An Editor for Embedded Development An Editor for Android Development Could be text only or GUI

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Other Tools Debugger Build System APK Generation Tool Installation Tool SDK

Cannot do

without it!

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Integrated Development Environment

Debugger Build System APK Generation

Tool Installation Tool SDK Etc.

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Android Studio Official IDE for

Android Development

Contains Everything you need to start Android Development

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New Terms and Concepts Activity – app logic Intent – message transfer object Layout – user interface XML – user interface definition language Java – app logic programming language Widgets – GUI objects in the screen

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Activity An activity represents a single screen with a user interface.

Can be likened to a web page.

It is the screen that the user sees.

 A page in your application.

It is what the user refers to the “app”.

Activities work together to form a cohesive user experience.

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Intent Delivery Messenger Used to declare and

deliver your Intentions Primarily used to start

Activity Service Broadcast

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Fragment Scaled down

version of Activity

Designed so two or more can fit in one screen

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ViewPager Layout manager that allows us to

implement swipe view. Allows us to swipe from page to page Each page is a fragment We need an adapter to manage the

Fragments

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XML Layout Fundamentals Elements on the screen are laid out with XML XML defines “how it looks” Java code defines “how it works” Each screen has a root layout Everything in screen derives from the View object Programmatic reference need to use XML widgets.

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Java Basics for Android This course is not heavy on “core” Java Programming The course is Android Development Focused A lot of the code/concepts are unique to Android and Android provides lots of plumbing code When in Doubt Copy and Paste Some knowledge of Object Oriented Programming

highly recommended

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Object Oriented Programming (OOP)

Objects are key to understanding OOP.

They have state and behavior. They stores state

in fields/variables They exposes behavior

through methods or functions Are created from Classes

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External Libraries

Are programs that you did not write

Use other people work often for free

Why do you want to use other people work?

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Programmers Are Integrators

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Don’t Repeat Yourself Find out the

piece of the puzzle that already exist

Create the parts that are needed

Put them together

Lesson Learned

DevelopYou need just enough Java to get started, Android programming consists mainly of responding to lifecycle events. Use FindViewById to link view objects to Java variables.

DeployDamn it! 84 other developers just published their app while you are busy building yours. They should have waited for you but they did not. So you have to create amazing graphic assets, compelling app description to compete.

DesignXML is used to layout out widgets on

the screen. Every widget derives from View. Composite views can contain other views such as Linear Layout,

Relative Layout, etc

DebugSomething will always go wrong,

someone planted a bug in your beautiful code – so go crush that bug.

The debugger got you covered you just have to get used to reading stack

trace!.

Did your light bulb go off? Did you get an

app mindset? Did this course scare you off?

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Next Steps

PracticeProgramPublish