Kotlin is a functional language, and in this post, you'll learn about extension functions, higher-order functions, closures, and inline functions in Kotlin.

Learn how to use IBM Watson's Visual Recognition service to create an Android app that can guess a person's age and gender and identify objects in an image.

Activities are a fundamental part of Android app development, and you need to understand their lifecyles. So learn all about the Activity lifecycle.

Learn about top-level functions, lambda expressions, anonymous functions, local functions, infix functions, and member functions in Kotlin.

Learn about LiveData, an observable data container in Android Architecture Components. We'll also cover features like Transformations and MediatorLiveData.

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.

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

Intents are a fundamental topic for Android developers. In this tutorial, I'll teach you about intents from A-Z.

Learn how to add a feature module to your instant app, and then discover how to get your finished instant app project into the Google Play store.

By using IBM Watson's Conversation service, you can create AI-powered conversational user interfaces in minutes. Learn how to use it in Android apps.

Kotlin is free and open source, and makes coding for Android even more fun. In this tutorial, we'll look at nullability, loops, and conditions in Kotlin.

In this tutorial we'll continue our exploration of Android's Architecture Components. We'll take a close look at the Lifecycle and LiveModel components.