macOS应用程序的SwiftUI :关闭窗口和打开另一个窗口时的用户@环境对象

import SwiftUI

struct ContentView: View {
    @Environment(\.presentationMode) var presentationMode
    
    var body: some View {
        VStack {
            Text("Hello, World!")
            Button("Close Window") {
                self.presentationMode.wrappedValue.dismiss()
            }
            Button("Open New Window") {
                let newWindow = NSWindow(
                    contentRect: NSRect(x: 0, y: 0, width: 400, height: 300),
                    styleMask: [.titled, .closable, .miniaturizable, .resizable],
                    backing: .buffered,
                    defer: false
                )
                newWindow.contentView = NSHostingView(rootView: NewWindowView())
                newWindow.makeKeyAndOrderFront(nil)
            }
        }
    }
}

struct NewWindowView: View {
    var body: some View {
        Text("New Window")
    }
}