SwiftUI:有没有办法在点击时只折叠一个按钮，而不是所有按钮

import SwiftUI

struct ContentView: View {
    @State private var isButtonCollapsed = false
    
    var body: some View {
        VStack {
            Button(action: {
                self.isButtonCollapsed.toggle()
            }) {
                Text("按钮")
                    .font(.title)
                    .foregroundColor(.white)
                    .padding()
                    .background(Color.blue)
                    .cornerRadius(10)
            }
            .padding()
            
            if !isButtonCollapsed {
                Button(action: {
                    // 按钮的点击事件
                }) {
                    Text("折叠的按钮")
                        .font(.title)
                        .foregroundColor(.white)
                        .padding()
                        .background(Color.blue)
                        .cornerRadius(10)
                }
                .padding()
            }
        }
    }
}

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