在 Swift 3 中，我使用以下代码注册了 sleep 和唤醒通知:
let notificationCenter = NSWorkspace.shared.notificationCenter
notificationCenter.addObserver(self, selector: #selector(AppDelegate.sleepListener), name: NSNotification.Name.NSWorkspaceWillSleep, object: nil)
notificationCenter.addObserver(self, selector: #selector(AppDelegate.wakeUpListener), name: NSNotification.Name.NSWorkspaceDidWake, object: nil)
但是在迁移到 Swift 4 之后，我在应用建议的修复后出现了这个错误:
Type 'NSNotification.Name' has no member 'NSWorkspace'
我如何在 Swift 4 中执行此操作？
最佳答案
要解决此问题，您需要将引用通知名称的代码从 NSNotification.Name.NSWorkspaceWillSleep 调整为 NSWorkspace.willSleepNotification。 Swift 4 版本是:
let notificationCenter = NSWorkspace.shared.notificationCenter
notificationCenter.addObserver(self, selector: #selector(AppDelegate.sleepListener), name: NSWorkspace.willSleepNotification, object: nil)
notificationCenter.addObserver(self, selector: #selector(AppDelegate.wakeUpListener), name: NSWorkspace.didWakeNotification, object: nil)
您可以看到此更改的 Apple 的 API 差异 here .
关于swift - 如何将 NSWorkspace 通知迁移到 Swift 4？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44402016/