尝试读取UIKit的UIDevice方向时，SwiftUI onAppear无法正常工作

import SwiftUI
import Combine

class DeviceOrientationManager: ObservableObject {
    @Published var orientation: UIDeviceOrientation = UIDevice.current.orientation
    
    init() {
        UIDevice.current.beginGeneratingDeviceOrientationNotifications()
        NotificationCenter.default.addObserver(self, selector: #selector(deviceOrientationDidChange), name: UIDevice.orientationDidChangeNotification, object: nil)
    }
    
    deinit {
        UIDevice.current.endGeneratingDeviceOrientationNotifications()
        NotificationCenter.default.removeObserver(self)
    }
    
    @objc private func deviceOrientationDidChange() {
        DispatchQueue.main.async {
            self.orientation = UIDevice.current.orientation
        }
    }
}

import SwiftUI

struct ContentView: View {
    @EnvironmentObject var deviceOrientationManager: DeviceOrientationManager
    
    var body: some View {
        VStack {
            Text("Device Orientation: \(deviceOrientationManager.orientation.rawValue)")
        }
        .onAppear {
            // 在这里执行你的操作
            print("View appeared")
        }
    }
}

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