ContentViewProgressView.swift

struct ContentView: View {
  @StateObject var dataModel = DataModel()
  var body: some View {
    VStack {
      if let image = dataModel.image {
        Image(uiImage: image)
          .resizable()
          .scaledToFit()
      } else if dataModel.progress == 1 {
        ProgressView()
          .progressViewStyle(CircularProgressViewStyle())
          .frame(maxWidth: .infinity, maxHeight: .infinity)
      } else {
        Spacer()
      }
      ProgressView(dataModel.progressText, value: dataModel.progress)
      Button("Download file") {
        dataModel.download()
      }
    }
    .padding()
  }
}