【SwiftUI】Basic animation 👉 https://zenn.dev/maochanz/articles/b3f2b0dcf949c5

TextAnimationView.swift

import SwiftUI

struct TextAnimationView: View {
  @State private var scale = false
  @State private var rotation = false
  @State private var opacity = false
  @State private var offset = false

  var body: some View {
    VStack {
      Image(systemName: "face.smiling")
        .font(.system(size: 100))

        .scaleEffect(scale ? 2 : 1)
        .animation(.default, value: scale)

        .rotationEffect(.degrees(rotation ? 0 : 360))
        .animation(.easeIn, value: rotation)
      
        .opacity(opacity ? 0.2 : 1)
        .animation(.easeOut, value: opacity)

        .offset(CGSize(width: offset ? 50 : 0, height: offset ? 50 : 0))
        .animation(.spring(duration: 0.5, bounce: 0.5), value: offset)

      Button("scale") {
        scale.toggle()
      }
      Button("rotation") {
        rotation.toggle()
      }
      Button("opacity") {
        opacity.toggle()
      }
      Button("offset") {
        offset.toggle()
      }
    }
    .buttonStyle(.borderedProminent)
  }
}

#Preview {
  TextAnimationView()
    .padding()
}