How to open Location services screen from setting screen?

Question

I have tried all the above answers,it’s not working on iOS11..it just opens settings page and not the app settings .. Finally this works..

UIApplication.shared.open(URL(string:UIApplicationOpenSettingsURLString)!)

Swift 4.2:

UIApplication.shared.open(URL(string:UIApplication.openSettingsURLString)!)

Refer: https://developer.apple.com/documentation/uikit/uiapplicationopensettingsurlstring?language=swift