how to request the user to turn on location services

问题

I need my app to access the user's current location. It checks at the beginning of the app if the user has it set or not. and if not i need the app to show a prompt for it to use location services. Like a an alert view and on lick of the button it should take you to the screen of location services on iphone.

回答1:

You can check the for locationServicesEnabled and if the location service is allowed for your application by this code:

if([CLLocationManager locationServicesEnabled] && [CLLocationManager authorizationStatus] != kCLAuthorizationStatusDenied) {
    //do your works
} else {
   //show an alert
}

来源：https://stackoverflow.com/questions/25018784/how-to-request-the-user-to-turn-on-location-services