Learn how to add default and static methods to your interfaces, create repeating annotations, and use lambda expressions and method references.

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

When you're first getting started with mobile development, it can be hard to choose a platform. Even worse, each platform has its own set of languages and...

This tutorial will introduce you to web APIs and teach you how to use the requests Python library to fetch and update information in web APIs.

A look at the various digital game publishing platforms available and which one is best suited for your game.

Use IBM Watson's natural language services to create an app that translates from one language to another and extracts sentiment, entities, and emotions.

Google Dialogflow is a natural language processing service that's free, very powerful, and multilingual. It also comes with a large number of well-designed...

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

With TensorFlow, one of the most popular machine learning frameworks available today, you can easily create and train deep models. TensorFlow Mobile is a...

Do you want to code mobile apps for multiple platforms? Try the Ionic framework, which lets you write an app once and publish it to any mobile platform.

The very first Android 8.0 developer preview is ready, so get your application launcher icons ready for Android O. Also, learn how to create shortcuts that...

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.

The RRO framework lets you create themes that change the look of almost every app on an Android device. Learn how to use it to edit the quick settings tray.

Learn how to use the RxAndroid library to transform any Android UI event into an RxJava Observable, and how to use RxJava in any Activity or Fragment without...

Passwordless authentication skips using a password for registration or login. Instead, user authentication is confirmed either with a one-time SMS...