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Learn & Master watchOS with SwiftUI watchOS with SwiftUI by Tutorials is here to help you learn all you need to know about Apple Watch development using the new declarative SwiftUI framework for building modern and engaging user interfaces. Learn all the main concepts by building different watchOS apps that implement all all of these functionalities. In this book, you will cover most of the concepts required to master watchOS development.Who This Book is ForThis book is for beginner and intermediate developers who wish to know how to develop watchOS apps in a declarative and modern way by implementing SwiftUI.Topics Covered in watchOS With SwiftUI by Tutorials: watchOS app project structure: Apple Watch has a slightly different project structure compared to iOS. So you will learn those differences.Use the Digital Crown in your apps: Build the famous Pong videogame but for watchOS and learn how the Digital Crown can enhance your users experience.Watch Connectivity: The Watch Connectivity framework will show you the different ways you can transfer data between iOS and watchOS apps.Snapshots: Snapshots provide a way for users to quickly view the state of an app showing updated and relevant information.Notifications: watchOS offers support for several different types of notifications and allows you to customize them to the individual needs of your watch app.watchOS app Lifecycle: Find out about the Apple Watch Lifecycles and how it transitions between states while extending current runtime sessions.Complications: Complications are small elements that appear on the user's selected watch face and provide quick access to frequently used data from within your app.Watch Face sharing: You can easily share your own custom Watch Faces through your iOS device or via web.Signing in with Apple Watch: Sign in with Apple to allow simple and straight-forward registration and authentication.HealthKit: Implement HealthKit in your WatchOS app to track health-related information and take advantage of Apple Health capabilities.One thing you can count on: after reading this book, you'll be prepared to develop professional Apple Watch apps with SwiftUI.

Learn Modern Swift Concurrency For years, writing powerful and safe concurrent apps with Swift could easily turn into a daunting task, full of race conditions and unexplained crashes hidden in a massive nesting of callback closures.In Swift 5.5, Apple introduced a new concurrency model featuring the async/await syntax, which lets you write asynchronous code that reads like synchronous code. But like any new feature, here be dragons So how will you achieve the much-desired mastery of modern Swift concurrency?Modern Concurrency in Swift comes to the rescue, showcasing what you need to know about async/await, tasks, actors and everything in between Who This Book Is ForThis book is for intermediate Swift developers who are familiar with writing asynchronous applications and who want to leverage the concurrency features Apple introduced in Swift 5.5 and its evolution throughout the years, to write safer and more predictable asynchronous apps.Topics Covered in Modern Concurrency in SwiftUsing async/await: Learn how to use the new async/await keywords to define and run asynchronous work.Actors: Find out how to use the actor model to easily protect shared mutable state in a synchronized container.Tasks: You'll dive deeper into the Task type, which powers all asynchronous tasks in Swift's modern concurrency model.Task Groups: Use a Task Group to group multiple tasks together and run them concurrently, while using a familiar Array-like syntax to iterate over the results.Custom Asynchronous Sequences: Leverage the power of async/await in your own asynchronous work, by learning how to create custom AsyncStreams.Testing Asynchronous Code: Asynchronous code can be a challenging beast to test. You'll learn everything you need to tackle this challenge.One thing you can count on: After reading this book, you'll be prepared to leverage Swift's new concurrency features in your app to write safe, performant and predictable asynchronous code.