问题
Prior to iOS 12 using isIdleTimerDisabled has stopped our app from going to sleep, but ever since iOS 12 this no longer seems to work.
Is this a bug with iOS 12 or am I doing something wrong here?
回答1:
This is for sure a bug and apparently Apple fixed it is iOS 12.1.1. You will see a new option under the Guided Access called Mirror Display Auto-Lock. Turn this on. Then go to Settings -> Display and Brightness -> Auto-Lock -> Never. This should fix it.
Here is a link to the most active thread about this issue on the Apple Forums.
来源：https://stackoverflow.com/questions/52486597/isidletimerdisabled-not-working-in-ios-12