Dive into test-driven development (TDD). Build testable, sustainable Android apps via JUnit, Mockito, and Espresso. Learn how with our updated book!

Learn Test-Driven Development on Android! Writing apps is hard. Writing testable apps is even harder, but it doesn’t have to be. Reading and understanding all the official Google documentation on...

Until now keyboards and Androids seemed to go in opposite directions. There was no API you could query to learn if the keyboard was open or to know its size. When the keyboard popped up, the screen...

Destructuring declarations is a Kotlin feature that gives you a tool for easily extracting data from a collection in a simple and clean way.

Learn about lifecycle-aware components including what they are, how they work, how to implement your own components and how to test them.

In this Jetpack Compose Course, you’ll learn what Compose is, what its fundamental components are, and how they behave individually, and when composed together. Furthermore, you’ll learn how to...

In this tutorial, you’ll learn about reactive streams in Kotlin and build an app using two types of streams: SharedFlow and StateFlow.

We’re hiring for multiple roles at raywenderlich.com – junior developers, video instructors, sales reps, customer success managers and more. Find out how to apply today!

Whether you want to make your code more efficient, or prepare for a job interview at a big tech company, our newly-updated book is here to help you.

Learn Data Structures & Algorithms in Kotlin! Data structures and algorithms are fundamental tools every developer should have. In this book, you’ll learn how to implement key data structures...

Learn how composition makes your Kotlin code more extensible and easy to maintain.

Learn how to use the object keyword in Kotlin to define singleton, companion and anonymous objects and to ensure Java interoperability.

Our entire catalog of online books is on sale for 50% off for a limited time. It’s our 2021 Graduation Sale – come see what’s new!

App Actions allow Google Assistant to access your app and launch specific actions within the app. This tutorial teaches you how to implement App Actions for your app so users can interact with your...

Razeware is currently hiring a full-time video instructor to create top-of-the line Android video courses at raywenderlich.com. Apply now!

Learn how Wear OS Tiles are different from regular Android layouts, how to implement your own Tile and handle user interactions.

Learn how to create a Gradle plugin within your existing Android app, or as a standalone project that you can publish and use in any Android project.

Everything you need to get started with Flutter—Widgets, UI, Navigation, Networking, Persistence, State Management, and Deployment. You name it. Our new Flutter Apprentice book has it!

Learn how to update the Android RecyclerView using DiffUtil to improve the performance. Also learn how it adds Animation to RecyclerView.

Learn about Android Services and the differences between foreground, background and bound services.

Learn how to use OkHttp Interceptors to intercept network requests, log them and also modify them on the fly.

If you missed our Google I/O First Impressions livecast last night, featuring our most opinionated Android team members, you can catch the replay here!

Learn how to draw UML diagrams to document your Android applications.

After a season of podcasting and reading ‘Living By The Code’ Nishant is in the hot seat to talk about GDG, Open Source, throwing pottery and bookbinding.