AnimatedImage.swift

struct AnimatedImage: View {
  @State private var image: Image?
  private let imageNames: [String]

  var body: some View {
    Group {
      image?
          .resizable()
          .scaledToFit()
    }.onAppear(perform: {
      self.animate()
    })
  }
  
  private func animate() {
    var imageIndex: Int = 0
  
    Timer.scheduledTimer(withTimeInterval: 0.025, repeats: true) { timer in
      if imageIndex < self.imageNames.count {
        self.image = Image(self.imageNames[imageIndex])
        imageIndex += 1
      }
      else {
        timer.invalidate()
      }
    }
  } 
}