使用Swift禁用OSX的睡眠/屏幕保护程序 [英] Using Swift to disable sleep/screen saver for OSX

问题描述

我正在寻找一种使用Swift使用我的应用程序禁用睡眠模式和屏幕保护程序的方法.我知道这

I'm looking for a way to disable sleep mode and screensaver through my application using Swift. I know this question has been asked before, but none of the answers are current (at least for Swift; I don't know about Objective-C).

我本来以为使用NSWorkspace.sharedWorkspace().extendPowerOffBy(requested: Int)，但是根据

I originally thought to use NSWorkspace.sharedWorkspace().extendPowerOffBy(requested: Int), but according to Apple's documentation, it is currently unimplemented.

有什么建议吗?

推荐答案

我最近遇到了这个 answer .它链接到Apple的 Q& A1340 ，并翻译列表2进入Swift.

I recently came across this answer. It links to Q&A1340 at Apple, and translates listing 2 into Swift.

我将其重构为一些不同的代码，显示了如何在 .我确实检查了代码，并且可以正常工作.

I refactored it into some different code, that shows how you can use them throughout the RunLoop, for instance. I did check the code, and it works.

import IOKit.pwr_mgt

var noSleepAssertionID: IOPMAssertionID = 0
var noSleepReturn: IOReturn? // Could probably be replaced by a boolean value, for example 'isBlockingSleep', just make sure 'IOPMAssertionRelease' doesn't get called, if 'IOPMAssertionCreateWithName' failed.

func disableScreenSleep(reason: String = "Unknown reason") -> Bool? {
    guard noSleepReturn == nil else { return nil }
    noSleepReturn = IOPMAssertionCreateWithName(kIOPMAssertionTypeNoDisplaySleep as CFString,
                                            IOPMAssertionLevel(kIOPMAssertionLevelOn),
                                            reason as CFString,
                                            &noSleepAssertionID)
    return noSleepReturn == kIOReturnSuccess
}

func  enableScreenSleep() -> Bool {
    if noSleepReturn != nil {
        _ = IOPMAssertionRelease(noSleepAssertionID) == kIOReturnSuccess
        noSleepReturn = nil
        return true
    }
    return false
}

Q& A1340答案也指出使用NSWorkspace.shared仅应用于支持OS X< 10.6.

The Q&A1340 answer also points out that using NSWorkspace.shared should only be used to support OS X < 10.6.

这篇关于使用Swift禁用OSX的睡眠/屏幕保护程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！