如何制作自定义.sheet视图修饰符

import SwiftUI

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

    var body: some View {
        Button("Show Sheet") {
            isPresented.toggle()
        }
        .sheet(isPresented: $isPresented, onDismiss: {
            // Handle dismiss action if needed
        }, content: {
            SecondView()
                .presentationDetents([.fraction(0.5)]) // 自定义展开程度为半屏
                .transition(.move(edge: .bottom)) // 自定义动画效果
        })
    }
}

struct SecondView: View {
    var body: some View {
        Text("This is a custom sheet")
            .padding()
            .background(Color.white)
            .cornerRadius(10)
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}