SwiftUI之动画transition

struct ContentView: View {
    @State private var showDetails = false

    var body: some View {
        VStack {
            Button("Press to show details") {
                withAnimation {
                    showDetails.toggle()
                }
            }

            if showDetails {
                // Moves in from the bottom
                Text("Details go here.")
                    .transition(.move(edge: .bottom))

                // Moves in from leading out, out to trailing edge.
                Text("Details go here.")
                    .transition(.slide)

                // Starts small and grows to full size.
                Text("Details go here.")
                    .transition(.scale)
            }
        }
    }
}