Your First Kotlin Android App: An App From Scratch [FREE]

Introduction

Getting started with Android development begins right here. Learn about what you’ll be making in this course - a simple game called Bull’s Eye.

Learn About Kotlin & Android

This episode would introduce the students into the two main components of the course: Kotlin and Android. Get a general introduction to Kotlin and a brief overview of the Android OS.

Challenge: Plan the App

Challenge yourself to come up with the steps required to build the Bull’s Eye app.

Setup a Project in Android Studio

Download Android Studio and setup a simple project.

Build & Run the App

Build and run the app on the virtual device you just created to see the starter app in action.

Build UI with Views

Build the basic inteface of the Bull’s Eye app using Views in Android.

Continue Building the UI

Continue building the game screen and learn about working with xml in the code view of the layout designer.

Add String Resource & ID

Learn about the importance of using string resources for texts and how to add descriptive ids to views.

Challenge: Add & Position a Button

Add a button, position it and add other attributes with what you’ve learned so far.

Conclusion

Get a summary of what has been covered so far and what to expect in the next part.

Introduction

Get an overview of what we’ll be covering in this part and why it’s important.

Access Views Using View Binding

Learn to access and interact with the views created in xml from inside your activity using the view binding feature.

Learn About Instances, Data & Functions

Get introduced to some basic object-oriented programming concepts to better understand the Kotlin code you’ll be working with in the Android Activity.

Challenge: Access Other Views

Now it’s time to try to access other views from the Activity with the knowledge you’ve gained so far.

Handle Interactions

Handle events triggered when users interact with your app. An Alert Dialog will display when the “Hit me” button is clicked.

Work with Strings

Cover the process of working with the “string” data type which stores a sequence of characters and display the value of the seekbar in the Alert Dialog.

Solve Common Problems

Learn about common problems you might encounter while building your apps and see how to solve them.

Conclusion

Get a summary of what has been covered so far and what to expect in the next part.

Introduction

Get an overview of what we’ll be covering in this part and why it’s important.

Understand Kotlin's Standard Library

Get introduced to the Kotlin Standard Library and how it assists with common operations so we don’t have to reinvent the wheel.

Write Another Type of Function

Learn about another type of function: one that returns some data.

Challenge: Calculate the Difference

Learn about algorithms and write one that calculates the positive difference between the player’s selection and the target value.

Use Conditional Statements

Become acquainted with conditional statements by calculating the positive difference.

Challenge: Rewrite the Code

Learn the ropes of code refactoring. Try to rewrite the method using another algorithm with less code.

Use a Math Method

Learn to use a math function provided by the Kotlin Standard Library to further simplify the code to calculate the difference.

Conclusion

Get a refresher of what was covered in this course and what to expect in the next course in your Android development journey.