SwiftUI -单击弹出窗口中的按钮时，取消弹出窗口并将按钮添加到当前主视图中

import SwiftUI

struct ContentView: View {
    @State private var showPopup = false
    
    var body: some View {
        VStack {
            Button("点击弹出窗口") {
                showPopup.toggle()
            }
            .padding()
            
            if showPopup {
                PopupView(showPopup: $showPopup)
                    .padding()
            }
        }
    }
}

struct PopupView: View {
    @Binding var showPopup: Bool
    
    var body: some View {
        VStack {
            Text("弹出窗口")
                .font(.title)
                .padding()
            
            Button("添加按钮到主视图") {
                showPopup = false
                // 执行将按钮添加到主视图的方法
            }
            .padding()
        }
        .background(Color.white)
        .cornerRadius(10)
        .shadow(radius: 10)
    }
}