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)

Creating our View model

Next, we need a View model for this app. First, create a new View Model folder inside the SportsNews folder. Then create a new file called SportsNewsViewModel, and save it inside the View Model folder. Next, update the import statements inside it to the following:

import SwiftUI
import Combine

Then, add the following after the import statements:

class SportsNewsViewModel: ObservableObject {
	// Add next step here

Next, we need to add a couple of variables to get started. Replace // Add next step here with the following:

private let api = API()  // (1)
private var subscriptions = Set<AnyCancellable>()  // (2)
@Published var error: API.Error? = nil   // (3)
@Published var regSeasonGames: [Game] = [] // (4)
@Published var preSeasonGames: [Game] = []   // (5)
@Published var players: [Player] = []   // (6)
@Published var selectedVideo: Video = Video.default   // (7)
@Published var...