Book Image

SwiftUI Cookbook - Third Edition

By : Juan C. Catalan
5 (1)
Book Image

SwiftUI Cookbook - Third Edition

5 (1)
By: Juan C. Catalan

Overview of this book

SwiftUI is the modern way to build user interfaces for iOS, macOS, and watchOS. It provides a declarative and intuitive way to create beautiful and interactive user interfaces. The new edition of this comprehensive cookbook includes a fully updated repository for SwiftUI 5, iOS 17, Xcode 15, and Swift 5.9. With this arsenal, it teaches you everything you need to know to build beautiful and interactive user interfaces with SwiftUI 5, from the basics to advanced topics like custom modifiers, animations, and state management. In this new edition, you will dive into the world of creating powerful data visualizations with a new chapter on Swift Charts and how to seamlessly integrate charts into your SwiftUI apps. Further, you will be able to unleash your creativity with advanced controls, including multi-column tables and two-dimensional layouts. You can explore new modifiers for text, images, and shapes that give you more control over the appearance of your views. You will learn how to develop apps for multiple platforms, including iOS, macOS, watchOS, and more. With expert insights, real-world examples, and a recipe-based approach, you’ll be equipped to build remarkable SwiftUI apps that stand out in today’s competitive market.
Table of Contents (20 chapters)
18
Other Books You May Enjoy
19
Index

Creating a banner with a spring animation

A nice and configurable easing function is the spring, where the component bounces around the final value. We are going to implement a banner that is usually hidden, and when it appears, it moves from the top with a spring animation.

Getting ready

No external resources are needed, so let's just create a SwiftUI project in Xcode called BannerWithASpringAnimation.

How to do it…

This is a simple recipe, where we create a banner view that can be animated when we tap on a button:

  1. Define a new view named BannerView. The code should be:
struct BannerView: View {
    let message: String
    var show: Bool
    
    var body: some View {
        Text(message)
         .font(.title)
         .frame(width:UIScreen.main.bounds.width - 20,
                   height: 100)
          .foregroundStyle(.white)
          .background(Color.green)
          .cornerRadius(10)
          .offset(y: show ?
                   -UIScreen.main.bounds.height...