如何在SwiftUI中创建一个底部的datepicker？

import SwiftUI

struct ContentView: View {
    @State private var selectedDate = Date()
    @State private var isDatePickerVisible = false

    var body: some View {
        VStack {
            Spacer()
            
            Button(action: {
                self.isDatePickerVisible.toggle()
            }) {
                Text("选择日期")
                    .font(.headline)
                    .foregroundColor(.white)
                    .padding()
                    .background(Color.blue)
                    .cornerRadius(10)
            }
            .padding()
            
            if isDatePickerVisible {
                DatePicker("", selection: $selectedDate, displayedComponents: .date)
                    .datePickerStyle(WheelDatePickerStyle())
                    .labelsHidden()
            }
        }
    }
}

@main
struct MyApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}