Lottie.swift

import SwiftUI
import Lottie

struct LottieView: UIViewRepresentable {
 
  //filename을 인자로 받습니다.
  @Binding var step:CGFloat
  

  ////생략
 
    
    //애니메이션이 계속 반복되게합니다.
    animationView.loopMode = .playOnce
    return view
  }
  //filename이 변경될때마다 호출됩니다.
  func updateUIView(_ uiView: UIView, context: UIViewRepresentableContext<LottieView>) {
    animationView.play(fromProgress: step, toProgress: step+0.1)
  }
}