Apple Health Frameworks

This course will walk you through the steps of making a health app using all the Apple Health Frameworks. Learn how to use HealthKit, CareKit and ResearchKit together to make a seamless app.

Supporting SwiftUI with Core Graphics

Learn how to support SwiftUI drawing with Core Graphics! This course picks up where our Drawing in iOS with SwiftUI course left off. You’ll enhance the Open Mind app with help from UIKit and Core Graphics. You’ll learn how to integrate UIKit views with SwiftUI, use UIKit touch methods to capture Apple Pencil drawing, and make the whole drawing view a UIControl that we can plug into any of our future SwiftUI apps.

Flutter Navigator 2.0

Navigator 2.0 is Flutter’s new declarative API for the Navigator widget. Learn how to migrate an app from old navigation patterns to use Navigator 2.0 and see how to make your app work with the URL bar and browser history in Flutter Web.

Drawing in iOS with SwiftUI

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 non-trivial app.

Wrangling Dates & Time in iOS

Understanding the deep technical details how dates and time work in iOS is immensely helpful for developing apps—every single day, month, and year! Learn the foundational structures behind working with dates and time in iOS. Then, apply your date modeling to SwiftUI views.

Local Receipt Validation in iOS

The course will walk you through the process of writing custom validation code for validating receipts from the app store on your device. Learn about the various pitfalls of writing your own validation code and understand how it all works under the hood.

WWDC 2021: AsyncSequence vs. Combine

AsyncSequence is a new protocol in Swift 5.5 that offers facilities for processing asynchronous data. But is it a Combine replacement…? Let’s find out!

Resizable Apps & Multi-Window Support in Android

This course will show you how to make your apps resizable and in turn support the multi-window mode in Android. Using this approach, you’ll allow your users to multi-task by using multiple apps at the same time.

SwiftUI Charts for WidgetKit

Learn how to use SwiftUI to create a series of different charts, and then how to use WidgetKit to display them on a user’s home screen.

Face Tracking with RealityKit

Learn how to leverage RealityKit and Reality Composer to build engaging AR experiences focused on tracking facial movement and expression, add props and behaviors to face anchors in Reality Composer, and drive animations for 3D content in augmented reality with your facial expressions.

Advanced iOS Design Patterns

Learn about advanced iOS design patterns like flyweight, mediator, composite, command, chain-of-responsibility, and coordinator. These might not have a place in your day-to-day development, but they’re still amazing patterns for your development toolbox!

Android In App Review

This course will teach you how to implement the new Android In App Review API from the Play Core set of tools. You’ll learn how to ask for user reviews at key moments in your app to help increase your Play Store rating and improve your app visibility!

Smart Lighting with HomeKit in watchOS

Learn to use HomeKit in watchOS to control light bulbs in your home. HomeKit is versatile, so most of what you learn here will apply to any type of smart device.

Multipeer Connectivity in iOS

In this course, you'll learn how to use Multipeer Connectivity: Apple's framework for transferring data between devices with no external network.

Reusable SwiftUI Views in the raywenderlich.com App

Build two of the custom SwiftUI views used throughout the raywenderlich.com app. Get a glimpse into how we used SFSymbols, managed colors, and made the most of live previews.

Advanced MapKit

Level up your MapKit knowledge! Learn how to customize your maps by way of custom drawing. Discover the difference between an overlay and a renderer, and how you can use those components to expand the map by providing more information, or by creating an entirely map using your own map tiles.

Implementing Picture In Picture Mode In Android

Implement Picture In Picture mode to allow users to watch videos even while they use other apps. See how a real-world app uses PiP, then learn how to add awesome media playback controls to PiP mode for ease of use!

Combine in the raywenderlich.com App

Take a look at how Combine is used to power parts of the open-source raywenderlich.com app based on changes that get stored in User Defaults.

SOLID in Real-World iOS Apps

Get an overview of the SOLID code craft guidelines, how they apply to Swift code, and how you can refactor your current code towards them.

Dependency Injection with Hilt: Fundamentals

In this dependency injection course, learn how to apply an awesome new library called Hilt, to build dependency graphs, and inject dependencies into Android components in an automatic and lifecycle-aware way, without having to write a ton of boilerplate code, you had to write with Dagger.

Kotlin Flow: Getting Started

Kotlin Flow is a new asynchronous stream library from JetBrains, the company behind the Kotlin language. Sharing many similarities with Rx streams, Kotlin Flow is built on top of Kotlin Coroutines. Get started by learning the concepts and usage patterns for the Flow API within IntelliJ IDEA projects. Then, see Flow in action in an Android app. Note: Flow is experimental in Kotlin 1.3 but will likely be stable in Kotlin 1.4.

MetricKit

See how to utilize Apple's recently released framework MetricKit and to create a Vapor Swift backend that receives the data.

Kotlin Coroutines: In Depth

Learn how to implement coroutines in a real-world example of an Android application, with structured layers and decoupled dependencies. You'll see how to test coroutines, handle errors, and structure concurrency in a clean and stable way.

Continuous Integration

Learn the basics of continuous integration and how to set it up for a GitHub project.

You'll take a look at three different CI solutions to build and test your app: GitHub Actions; Bitrise; Jenkins.

You'll also learn how to use pull requests to validate new code and ensure that it builds and all the tests pass.