如何在iOS中以编程方式禁用/启用睡眠模式? [英] How to disable/enable the sleep mode programmatically in iOS?

问题描述

我有一个应用程序，它必须保持清醒状态直到倒计时结束，但是只要达到分配的睡眠时间，它就会进入睡眠模式".

I have an app that must stay awake until the end of a countdown but it will go into 'sleep mode' whenever it reaches the allocated time to sleep.

在我的应用中，我可以选择推迟睡眠，以便用户可以禁用/启用它.

In my app, I have the option to postpone sleep, so users can disable/enable it.

我该如何以编程方式进行?

How do I do it programmatically?

推荐答案

您可以按以下方式禁用空闲计时器；

You can disable the idle timer as follows;

在Objective-C中:

In Objective-C:

[UIApplication sharedApplication].idleTimerDisabled = YES;

在Swift中:

UIApplication.sharedApplication().idleTimerDisabled = true

在Swift 3.0&中Swift 4.0:

In Swift 3.0 & Swift 4.0:

UIApplication.shared.isIdleTimerDisabled = true

将其设置回NO或false以重新启用睡眠模式.

Set it back to NO or false to re-enable sleep mode.

例如，如果在离开视图之前需要它，则可以通过覆盖viewWillDisappear来重新设置它:

For example, if you need it until you leave the view you can set it back by overriding the viewWillDisappear:

override func viewWillDisappear(_ animated: Bool) {
    UIApplication.shared.isIdleTimerDisabled = false
}

有关 UIApplication类.

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