Book Image

SwiftUI Projects

By : Craig Clayton
Book Image

SwiftUI Projects

By: Craig Clayton

Overview of this book

Released by Apple during WWDC 2019, SwiftUI provides an innovative and exceptionally simple way to build user interfaces for all Apple platforms with the power of Swift. This practical guide involves six real-world projects built from scratch, with two projects each for iPhone, iPad, and watchOS, built using Swift programming and Xcode. Starting with the basics of SwiftUI, you’ll gradually delve into building these projects. You’ll learn the fundamental concepts of SwiftUI by working with views, layouts, and dynamic types. This SwiftUI book will also help you get hands-on with declarative programming for building apps that can run on multiple platforms. Throughout the book, you’ll work on a chart app (watchOS), NBA draft app (watchOS), financial app (iPhone), Tesla form app (iPhone), sports news app (iPad), and shoe point-of-sale system (iPad), which will enable you to understand the core elements of a SwiftUI project. By the end of the book, you’ll have built fully functional projects for multiple platforms and gained the knowledge required to become a professional SwiftUI developer.
Table of Contents (13 chapters)

Networking with Combine

We now have some of the basics; let's create a networking layer that uses Combine. Most of this code structure is just a networking layer, but we will use URLSession. Let's get started.

Open the API file inside of the View Model folder and add the following:

struct API {
    enum Error: LocalizedError, Identifiable {
        var id: String { localizedDescription }
        case addressUnreachable(URL)
        case invalidResponse
        var errorDescription: String? {
            switch self {
                case .invalidResponse: return 'The server             ...