问题
I have to check the correct current time if user sets "Set Automatically" off.
Is there any way to access the status of "Set Automatically" setting status so that I cam prompt user to turn it on. OR Another approach I can follow I can fetch the time from GPS(location) but the below code always gives the local time in case of user selects "Set Automatically" off.
CLLocation* location = [[CLLocation alloc] initWithLatitude:(CLLocationDegrees) 0.0 longitude:(CLLocationDegrees) 0.0];
NSDate* now = location.timestamp;
Is there any way to archive this behavior in ios.
回答1:
If you can't rely on the local clock, you need to use an external source. There are (probably) several NTP-based libraries for this. For example: ios-ntp, which can currently be found here.
来源：https://stackoverflow.com/questions/33752318/how-to-check-the-correct-current-time-if-user-sets-set-automatically-off