如何在macos/osx中捕获锁定/解锁事件时间

import Cocoa

class AppDelegate: NSObject, NSApplicationDelegate {
    func applicationDidFinishLaunching(_ aNotification: Notification) {
        // 注册锁定/解锁事件的通知
        NSWorkspace.shared.notificationCenter.addObserver(self, selector: #selector(screensDidSleep(_:)), name: NSWorkspace.screensDidSleepNotification, object: nil)
        NSWorkspace.shared.notificationCenter.addObserver(self, selector: #selector(screensDidWake(_:)), name: NSWorkspace.screensDidWakeNotification, object: nil)
    }
    
    @objc func screensDidSleep(_ notification: Notification) {
        // 锁定事件发生时的处理逻辑
        let eventTime = Date()
        print("屏幕锁定时间：\(eventTime)")
    }
    
    @objc func screensDidWake(_ notification: Notification) {
        // 解锁事件发生时的处理逻辑
        let eventTime = Date()
        print("屏幕解锁时间：\(eventTime)")
    }
}

let appDelegate = AppDelegate()
NSApplication.shared.delegate = appDelegate
NSApplication.shared.run()