xcode - Mac 从 sleep 状态恢复时会触发什么事件？

Question

我正在 Mac 上的 Xcode 中开发一个应用程序，想知道当 Mac 从 sleep 状态恢复时触发的事件。AwakeFromNib 似乎不起作用。

Answer 1

对于 swift 3:

func onWakeNote(note: NSNotification) {
    print("Received wake note: \(note.name)")
}

func onSleepNote(note: NSNotification) {
    print("Received sleep note: \(note.name)")
}

func fileNotifications() {
    NSWorkspace.shared().notificationCenter.addObserver(
        self, selector: #selector(onWakeNote(note:)),
        name: Notification.Name.NSWorkspaceDidWake, object: nil)

    NSWorkspace.shared().notificationCenter.addObserver(
        self, selector: #selector(onSleepNote(note:)),
        name: Notification.Name.NSWorkspaceWillSleep, object: nil)
}

对于 swift 4:

@objc func onWakeNote(note: NSNotification) {
    ...
}

@objc func onSleepNote(note: NSNotification) {
    ...
}

func fileNotifications() {
    NSWorkspace.shared.notificationCenter.addObserver(
        self, selector: #selector(onWakeNote(note:)),
        name: NSWorkspace.didWakeNotification, object: nil)

    NSWorkspace.shared.notificationCenter.addObserver(
        self, selector: #selector(onSleepNote(note:)),
        name: NSWorkspace.willSleepNotification, object: nil)
}