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)

Chapter 4: Creating New Components and Grouping Views in Container Views

In this chapter, we will focus on grouping views using Form and TabView views.

Form views are one of the best ways to get input from prospective clients or current users. Proper implementation of Forms improves the user experience and increases the chances of retention, whereas complex or frustrating forms lead to negative user experiences. We used forms and containers in the earlier chapters but in this chapter, we will learn additional ways to use forms.

SwiftUI's TabView is similar to UIKit's UITabBarController. It provides an easy and intuitive way to present multiple views to the user and allow them to easily navigate between each of those views.

The following concepts will be discussed in this chapter:

  • Showing and hiding sections in forms
  • Disabling and enabling items in a form
  • Navigating between multiple views with TabView
  • Using gestures with TabView