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 a SwiftUI watch list

We are going to display a SwiftUI List view. Our List is going to display a list of colors. First, we need to create a color model.

Open the ColorModel file inside the Model folder and add the following:

struct ColorModel: Identifiable {
    var id = UUID()
   	var name: String

This struct has two properties: id and name. We have also set our model so that it conforms to Identifiable. When using a List in SwiftUI, our List is required to be unique, and there are two ways to handle this. We can either pass data, for example, the name as our unique ID, or we can use UUID and use this as our ID. The more you work with SwiftUI, the more ways you will encounter to handle Identifiable. If your data was coming from a feed, then you could use id if it were unique.

Open ColorsView.swift and add the following code inside the ColorsView struct, before the body:

@State var colors: [ColorModel] = [ ColorModel(name...