Get an introduction to object-oriented programming in Kotlin by learning about classes: constructors and properties, casting, and advanced class features.

In this tutorial, we'll start by looking at how to organize code using packages in Kotlin, and then go on to an introduction to functions in Kotlin.

If you want to code a mobile app, you need to know a programming language. In this post, I'll help you pick the best mobile development language for you.

Kotlin is free and open source, and it makes coding for Android more fun. In this tutorial we'll look at advanced data types such as ranges and collections.

Kotlin is a modern programming language that compiles to Java bytecode. It is free and open source, and it promises to make coding for Android even more fun.

Whether you are a seasoned app developer looking to learn a new language or a student looking to start your freelance career as an app developer, here is a...

In this post, you'll learn how to display navigation items inside a navigation drawer in Android. We'll cover how to use Jetpack navigation to perform this...

Learn how to build a material design app with a bottom navigation bar in Android using the BottomNavigationView API.

Learn how to use the new RecyclerView Selection library to create an Android app that offers an intuitive interface for selecting multiple items in a list....

MongoDB Stitch is a serverless platform that allows you to build highly scalable web and mobile apps. It is tightly integrated with MongoDB Atlas, allowing...

In this post, you'll learn how to use Retrofit—one of the most widely used networking libraries for Android. Create an app that retrieves remote data using...

In our new course, Kotlin Android Fundamentals: Services, you'll learn everything you need to know to use Services in your Kotlin Android app.