如何将NSWorkspace通知迁移到Swift 4? [英] How to migrate NSWorkspace notifications to Swift 4?
本文介绍了如何将NSWorkspace通知迁移到Swift 4?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在Swift 3中,我使用以下代码注册了睡眠和唤醒通知:
In Swift 3 I registered for sleep and wake notifications with this code:
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,在应用建议的修复程序后出现了此错误:
but after migrating to Swift 4, I get this error after applying the suggested fixes:
Type 'NSNotification.Name' has no member 'NSWorkspace'
如何在Swift 4中做到这一点?
How do I do this in Swift 4?
推荐答案
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:
To fix this, you need to adjust the code referencing the notification's name from NSNotification.Name.NSWorkspaceWillSleep
to NSWorkspace.willSleepNotification
. The Swift 4 version is:
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)
您可以在此处.
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