Alert for permission of location service in iOS 9

Question

I have set the NSLocationAlwaysUsageDescription and NSLocationWhenInUseUsageDescription in info.plist , the alert appears when the app wants to use the location service, but the alert just appear for a little time and I can't click on this alert. This alert disappear automatically！

 func showLocation(sender: UIButton)
    {
        let manager = CLLocationManager()
        manager.delegate = self
        if CLLocationManager.authorizationStatus() != CLAuthorizationStatus.AuthorizedAlways
        {
            manager.requestWhenInUseAuthorization()
        }
        manager.startUpdatingLocation()
    }
    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        for location in locations {
            print("The location is (location)")
        }
    }

Answer 1

self.locationManager = [[CLLocationManager alloc]init];
if ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined)
{
    if([[NSBundle mainBundle] objectForInfoDictionaryKey:@"NSLocationWhenInUseUsageDescription"] && [self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]){
        [self.locationManager requestWhenInUseAuthorization];
    }
}
else if([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied)
{
    //Location Services is off from settings

}
else if([CLLocationManager authorizationStatus] == kCLAuthorizationStatusRestricted)
{

}

Try Following code. It worked for me