Book Image

Animating SwiftUI Applications

By : Stephen DeStefano
Book Image

Animating SwiftUI Applications

By: Stephen DeStefano

Overview of this book

Swift and SwiftUI are the backbone of Apple application development, making them a crucial skill set to learn. Animating SwiftUI Applications focuses on the creation of stunning animations, making you proficient in this declarative language and employing a minimal code approach. In this book, you'll start by exploring the fundamentals of SwiftUI and animation, before jumping into various projects that will cement these skills in practice. You will explore some simple projects, like animating circles, creating color spectrums with hueRotation, animating individual parts of an image, as well as combining multiple views together to produce dynamic creations. The book will then transition into more advanced animation projects that employ the GeometryReader, which helps align your animations across different devices, as well as creating word and color games. Finally, you will learn how to integrate the SpriteKit framework into our SwiftUI code to create scenes with wind, fire, rain, and or snow scene, along with adding physics, gravity, collisions, and particle emitters to your animations. By the end of this book, you’ll have created a number of different animation projects, and will have gained a deep understanding of SwiftUI that can be used for your own creations.
Table of Contents (18 chapters)

Adding the variables and a winter background

Let’s get started and create a new SwiftUI project – I have called it Breathing Flower.

Next, go ahead and download the assets for this project. The images are bouquet, petal, smoke, snow, and winterNight. After you download them, drop the images into the Assets catalog.

We now have the pictures we need loaded into the project. So, let’s start in ContentView and add the variables we need to make this flower come alive:

import SwiftUI
struct ContentView: View {
    @State private var petal = false
    @State private var breatheInLabel = true
    @State private var breatheOutLabel = false
    @State private var offsetBreath = false
    @State private var diffuseBreath = false
    @State private var breatheTheBouquet = false

You should be familiar with the process of creating animating variables...