使用SwiftUI观察窗口大小调整事件

import SwiftUI

struct ContentView: View {
    @State private var windowSize: CGSize = .zero
    
    var body: some View {
        GeometryReader { geometry in
            VStack {
                Text("Window Size: \(Int(self.windowSize.width)) x \(Int(self.windowSize.height))")
                    .padding()
                
                // 在此处添加其他视图
                
            }
            .onAppear {
                self.windowSize = geometry.size
            }
            .onReceive(NotificationCenter.default.publisher(for: NSWindow.didResizeNotification)) { _ in
                self.windowSize = geometry.size
            }
        }
    }
}

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