SwiftUI Projects

Craig Clayton

• Publisher: Packt Publishing
• Year: 2020
• ISBN:
  9781839218293
• Edition: 1
• Topic: Computer Science
• Subtopic: Programming
• Index: Computer Science

Learn SwiftUI by designing and building complex user interfaces for watchOS, iPadOS, and iOS with the help of projects including a financial app, a sports news app, and a POS systemKey Features• Learn SwiftUI with the help of practical cross-platform development projects• Understand the design considerations for building apps for different devices such as Apple Watch, iPhone, and iPad using SwiftUI's latest features• Work with advanced SwiftUI layout features, including SF Symbols, SwiftUI grids, and forms in SwiftUIBook DescriptionReleased 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.What you will learn• Understand the basics of SwiftUI by building an app with watchOS• Work with UI elements such as text, lists, and buttons• Create a video player in UIKit and import it into SwiftUI• Discover how to leverage an API and parse JSON in your app using Combine• Structure your app to use Combine and state-driven features• Create flexible layouts on iPadWho this book is forSwiftUI Projects is intended for anyone who is already comfortable with Swift. We do not cover Swift topics in detail, so you need to be familiar with these already. All of the SwiftUI topics are taught as if this is the first time you've learned them and will gradually get more difficult.

Chapter 1: SwiftUI Basics

When Apple announced SwiftUI at WWDC in June, I was fortunate enough to be there. As soon as Apple presented SwiftUI, I was like a kid in a candy store because one of my biggest passions in iOS is working on the visual side. I love being able to take a design and try to come as close as I can to matching every detail of a designer's composition. The biggest downfall of using storyboards, which I am still a fan of, is that you cannot quickly prototype. I have ways of doing it, but it takes time, and sometimes you want to go in and try something and not spend a lot of time setting things up like Collection views or Table views with data. SwiftUI helps me focus on creating a beautiful design without needing any data, and when I am ready, I can plug in data. I find this to be the best process because I can add the data layer after completing the design.

I enjoyed designing all six apps that we will cover in this book. I tried to cover a wide range of topics with these six apps. We will build two watch apps, two iPhone apps, and two iPad apps. Most of these features are available on any device; I decided to mix up the apps so that there was a little variety. One thing about this book that might be slightly different is that I have set up the book so we cover design first. After that, we'll focus on the data side. If you do not care about design, you can easily skip this part. Do what you feel is best for you.

In this chapter, we will be working with the following:

• Views and controls
• Shapes
• View layout and presentation

Views and controls are a crucial part of SwiftUI. Some of them you'll be familiar with if you have done iOS development before. Shapes in SwiftUI are super easy to create and use, and once you are comfortable with them, we'll add animations to them to bring them to life. We'll look at Rounded Rectangles, Rectangles, Circles, and even creating Activity Rings later in the book. Finally, view layout and presentation is a big part of SwiftUI, and we'll cover a ton of ways to make beautiful designs and recreate them in SwiftUI.

In this chapter's sample files, you will find a project called SwiftUIBasics. You can follow along with all of the code examples in that file. Since we will be doing a ton of writing, I designed this chapter for you to follow along...

Table of contents

• SwiftUI Projects
• Why subscribe?
• Preface
• Chapter 1: SwiftUI Basics
• Chapter 2: SwiftUI Watch Tour
• Chapter 3: NBA Draft – Watch App
• Chapter 4: Car Order Form – Design
• Chapter 5: Car Order Form – Data
• Chapter 6: Financial App – Design
• Chapter 7: Financial App – Core Data
• Chapter 8: Shoe Point of Sale System – Design
• Chapter 9: Shoe Point of Sale System – CloudKit
• Chapter 10: Sports News App – Design
• Chapter 11: Sports News App – Data
• Other Books You May Enjoy