In the previous post, we created an Android widget that retrieves and displays data, and responds to onClick events, but this widget is still missing one...

Thinking about getting into machine learning? There is a learning curve and starting now is your best bet. Learn which programming languages to prioritize...

In the previous posts, we created an Android widget that retrieves and displays data, responds to onClick events, and updates on a schedule and on demand....

Learn how to build a material design settings screen in Android using the Preferences and SharedPreferences API.

If you want to develop Android apps, you need to understand how to create and use Activities. Our new course, Android Fundamentals: Activities, is the...

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.

Learn about exceptions and how to handle them in Kotlin. We'll look at checked and unchecked exceptions, the try construct, @Throws, and more.

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.

In this short tutorial, you'll learn everything you need to know to aptly use Java's Single Abstract Method (SAM) interfaces in Kotlin code.

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 to achieve concurrency in RxJava with Schedulers, the subscribeOn() operator, the observeOn() operator, and the flatMap() operator.

Android software development is the process of creating new applications running on the Android operating system. These apps are mainly written in Java, C++,...

If you're storing user data, it's critical that you do so securely. This tutorial will get you up and running by looking at the storage system and how to...

Do you want to get started using one of the hottest new programming languages out there? Then check out our new course, Kotlin Fundamentals.

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.