Book Image

SwiftUI Cookbook

By : Giordano Scalzo, Edgar Nzokwe
Book Image

SwiftUI Cookbook

By: Giordano Scalzo, Edgar Nzokwe

Overview of this book

SwiftUI is an innovative and simple way to build beautiful user interfaces (UIs) for all Apple platforms, right from iOS and macOS through to watchOS and tvOS, using the Swift programming language. In this recipe-based book, you’ll work with SwiftUI and explore a range of essential techniques and concepts that will help you through the development process. The recipes cover the foundations of SwiftUI as well as the new SwiftUI 2.0 features introduced in iOS 14. Other recipes will help you to make some of the new SwiftUI 2.0 components backward-compatible with iOS 13, such as the Map View or the Sign in with Apple View. The cookbook begins by explaining how to use basic SwiftUI components. Then, you’ll learn the core concepts of UI development such as Views, Controls, Lists, and ScrollViews using practical implementation in Swift. By learning drawings, built-in shapes, and adding animations and transitions, you’ll discover how to add useful features to the SwiftUI. When you’re ready, you’ll understand how to integrate SwiftUI with exciting new components in the Apple development ecosystem, such as Combine for managing events and Core Data for managing app data. Finally, you’ll write iOS, macOS, and watchOS apps while sharing the same SwiftUI codebase. By the end of this SwiftUI book, you'll have discovered a range of simple, direct solutions to common problems found in building SwiftUI apps.
Table of Contents (15 chapters)

What this book covers

Chapter 1, Using the Basic SwiftUI Views and Controls, explains how to implement various SwiftUI layout components, such as HStack, VStack, ZStack, LazyHStack, LazyVStack, LazyHGrid, LazyVGrid, and other layout components. It also covers how to capture various user gestures and how to use form fields. This chapter covers the basic building blocks for creating SwiftUI apps.

Chapter 2, Going Beyond the Single Component with List and Scroll Views, explains how to implement Lists, ScrollViews, and Expanding views. Learn to improve the load time of large data by using Lazy Grids and Lazy Stacks.

Chapter 3, Viewing while Building with SwiftUI Preview, explains how to unleash the power and capabilities of SwiftUI previews to speed up UI development time.

Chapter 4, Creating New Components and Grouping Views in Container Views, explains how to group views, use container views, and implement architectural views such as NavigationView and TabView.

Chapter 5, Presenting Extra Information to the User, provides various ways of presenting extra information to the user, such as alerts, modals, context menus, and popovers.

Chapter 6, Drawing with SwiftUI, explains how to implement drawings in SwiftUI by using built-in shapes, and drawing custom paths and polygons, using UIBezierPath and CGPath.

Chapter 7, Animating with SwiftUI, explains how to implement basic animations, spring animations, and implicit and delayed animations, as well as how to combine transitions, create custom transitions, and create asymmetric transitions.

Chapter 8, Driving SwiftUI with Data, explains how to use the SwiftUI binding mechanism to populate and change views when the bounded data changes.

Chapter 9, Driving SwiftUI with Combine, explains how to integrate Combine to drive the changes of the SwiftUI views. You'll explore how to validate forms, fetch data asynchronously from the network, and test Combine-based apps.

Chapter 10, Handling Authentication and Firebase with SwiftUI, explains how to implement authentication in your app and store user information.

Chapter 11, Handling Core Data in SwiftUI, explains how to implement persistence using SwiftUI and Core Data, saving, deleting, and modifying objects in a Core Data local database.

Chapter 12, Cross-Platform SwiftUI, explains how to create a cross-platform SwiftUI app that works on iOS, macOS, and watchOS.

Chapter 13, SwiftUI Tips and Tricks, covers several SwiftUI tips and tricks that will help you solve a number of common problems, such as testing the views, integrating a MapKit view, and using custom fonts.