【SwiftUI】View の 強制再描画 👉 https://android.benigumo.com/20240324/force-redraw/

ForceUpdateView.swift

import SwiftUI

struct TestView: View {
  @State var id = false

  var body: some View {

    AutoProgressView()
      .padding()
      .id(id)

    Button("restart") {
      id.toggle()
    }
    .buttonStyle(.borderedProminent)

  }
}

struct AutoProgressView: View {
  @State private var value = 0.0
  private let total = 10.0
  private let duration = 1.0

  var body: some View {
    ProgressView(value: value, total: total)
      .task {
        while value < total {
          try? await Task.sleep(for: .seconds(duration))
          value += duration
        }
      }
  }
}


#Preview {
  TestView()
}