iOS alertview for location permission doesn't pop up

Question

I just started my project for iOS 8 and i ran in too the problem that i cant get the question to pop up for permission. I added the following to my info.plist

Answer 1

its new for ios 10 Now add location permission in plist file

if not add permission in plist then permission popup is not show

Add below permission in plist

1.Privacy - Location When In Use Usage Description

2.Privacy - Location Always Usage Description

Answer 2

Make sure your view controller implements CLLocationManagerDelegate and imports #import CoreLocation/CoreLocation.h

- (void)viewDidLoad
{
    [super viewDidLoad];

    [self setLocationManager:[[CLLocationManager alloc] init]];

    if([self.locationManager respondsToSelector:@selector(requestWhenInUseAuthorization)]){
        [self.mapview setShowsUserLocation:NO];
        [self.locationManager setDelegate:self];
        [self.locationManager requestWhenInUseAuthorization];
    }
    else{
        //Before iOS 8
        [self.mapview setShowsUserLocation:YES];
    }
}

Add this method to listen for AuthorizationStatus changes

-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status {
   if (status == kCLAuthorizationStatusDenied) {
       // permission denied
       [self.mapview setShowsUserLocation:NO];
   }
   else if (status == kCLAuthorizationStatusAuthorized) {
       // permission granted
       [self.mapview setShowsUserLocation:YES];
   }
}

Finally make sure your plist has the following entries as pointed out by Sanne

<key>NSLocationWhenInUseUsageDescription</key>
<string>The spirit of stack overflow is coders helping coders</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>I have learned more on stack overflow than anything else</string>