I am working on a feature which takes a few seconds. So I want to display a ProgressView when my logic is in progress.

Not sure if this is a bug in SwiftUI, but in the following code, when I click the button the second time, the progress view does not show up anymore (The first click is fine tho)

struct ContentView: View {
  @State var inProgress = false
  var body: some View {
    List {
      if inProgress {
        HStack {
          Text("Waiting...")
          ProgressView()
        }
      } else {
        Button("Click Me") {
          inProgress = true
          Task {
            try? await Task.sleep(nanoseconds: UInt64(2 * 1_000_000_000))
            inProgress = false
          }
        }
      }
    }
  }
}

Note that this problem only happens under a List. If I change it to a VStack, then the ProgressView is displayed every time I click the button.

>Solution :

To show the ProgressView every time you click, add a new .id() to the HStack (or the ProgressView), so that it gets re-drawn:

    HStack {
      Text("Waiting...")
      ProgressView()
    }.id(UUID())  // <--- here

Note, you can also use Task.sleep(for: .seconds(2))