Learn about all the cool concepts from background processing in Android! Use the WorkManager, JobScheduler, Services, AsyncTasks and the AlarmManager. Learn what each concept brings to the table,...

State management is a key aspect of working with Flutter. There are lots of different solutions with lots of different approaches. In this course, you’ll learn about the base tools provided by...

Dive deeper into URLSession. Learn how to upload data and how to perform background downloads. Work with sockets and use WebSockets for real-time messaging. Learn about authentication, App...

Learn to create custom widgets that are designed with reusability in mind so you could reuse them in your projects or share them with the world as a library.

Learn how to use URLSession, Apple’s networking API, including how to download data, show download progress, group multiple network requests, handle errors, and more. Learn about concurrency and...

Implement advanced concepts in the Retrofit library in Android, and add interceptors and parsers. Learn how Kotlin Coroutines can make your networking code easy to write and understand.

Learn about the the HTTP, JSON, REST and all the other cool and important abbreviations in the world of networking! Implement the Retrofit library in Android, add interceptors, parsers, and Kotlin...

In this course, you will learn how to build an Android app using the Model-View-ViewModel presentation architecture pattern including testing.

Firebase can help you add back-end features to your Flutter app without writing any back-end code. It provides several tools that you can immediately use, like authentication, a centralized...

Learn how to create a cloud based database and authentication application using Supabase. This is an easy to use Postgres relational database along with authentication. There are easy to use...

Learn how to create and work with collections of data using differenct collection types in Kotlin and explore lambdas, which is an integral part in many Kotlin codebases.

Learn the fundamental building blocks of Kotlin, through hands-on exercises and challenges! Explore the world of data types, comparison and logical operators, loops, control flow and functions and...

Learn what Kotlin Serialization library is and how to use it in your Android app. Also learn how it differs from other data serialization libraries like Moshi and Gson.

In this course, you’ll learn about how to fetch, sort and filter entries from a Core Data persistent store. You’ll also dive into some more advanced topics such as delete rules and Core Data with...

Learn the basics of Core Data in this beginner series. You’ll learn how to model your data with attributes and relationships, save data using a context, display saved data in lists and much more,...

This course is the sequel to “Your First Kotlin Android App: An App from Scratch.” In this course, we’ll finish off programming Bull’s Eye to add some nice touches and features to make it look...

Bazel is an open source build system created by Google for compiling large complex codebases. This courses teaches the basics of using building from writing a very simple Java application to...

Updated for 2022! Get started with Android by building your own game using the Kotlin programming language. If you’re new to Android and development as a whole, then this course is for you.

In this final course in the Programming with Dart series, you’ll be introduced to one of the most important aspects of the language: classes. You’ll learn how to define your own classes and how to...

To help you dig into Apple’s massive catalog of content from WWDC 2022, Catie Catterwaul counts down her top 10 sessions that you shouldn’t miss!

You’ll continue to build on the lessons taught in the Programming in Dart series by learning how to write functions to maximize code reuse as well as to filter and map collections. You’ll also be...

Updated for 2022! In-App Purchase offers additional revenue streams for developers other than the initial purchase from the App Store. This can be great for unlocking functionality, providing...

Learn about drawing using SwiftUI by creating custom controls using a combination of SwiftUI and Core Graphics. Covers shapes, colors, drawing with Pencil, and how to integrate them into a...

Find out where and how to save data in iOS! This course explores common methods for persisting user data, all from within Xcode Playgrounds.