Xcode 6.2 beta and iOS 8 simulator: location manager authorization dialogue fails to appear: bug or failure to understand?

Question

I have found the following solution explaining how to utilize location services in iOS 8. Unfortunately I have got only an iPhone 6 simulator and not the real device. I tried to add this code in the viewDidLoad method but the authorization dialog is never shown. Why is this?

I added a breakpoint in the following, it gets executed but does not show the dialouge..:

    // Will open an confirm dialog to get user's approval
    [locationManager requestAlwaysAuthorization];

And here is the full viewDidLoad method:

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // Initialize location manager
locationManager = [CLLocationManager new];
locationManager.delegate = self;

float system = [[[UIDevice currentDevice] systemVersion] floatValue ];

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0 &&
    [CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedAlways
    ) {
    // Will open an confirm dialog to get user's approval
    [locationManager requestAlwaysAuthorization];
} else {
    [locationManager startUpdatingLocation]; //Will update location immediately
}
locationManager.desiredAccuracy = kCLLocationAccuracyBest;

PS: I also modified the info.plist as following:

PPS:

This is how I implement (in the same ViewController) the rest of the CLLocationManagerDelegate protocol:

#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager*)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined: {
            NSLog(@"User still thinking..");
        } break;
        case kCLAuthorizationStatusDenied: {
            NSLog(@"User dislikes your app");
        } break;
        case kCLAuthorizationStatusAuthorizedWhenInUse:
        case kCLAuthorizationStatusAuthorizedAlways: {
            [locationManager startUpdatingLocation];
        } break;
        default:
            break;
    }
}

- (void)locationManager:(CLLocationManager *)manager
     didUpdateLocations:(NSArray *)locations {
    CLLocation *location = [locations lastObject];
    NSLog(@"lat%f - lon%f", location.coordinate.latitude, location.coordinate.longitude);
}

EDIT 2: I added the following block of code as suggested in an answer. The code is executed but dialogue fails to appear.

#pragma mark - CLLocationManagerDelegate
- (void)locationManager:(CLLocationManager*)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined: {
            if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0){
                [locationManager requestAlwaysAuthorization];
            }
        } break;
        case kCLAuthorizationStatusDenied: {
            NSLog(@"User dislikes your app");
        } break;
        case kCLAuthorizationStatusAuthorizedWhenInUse:
        case kCLAuthorizationStatusAuthorizedAlways: {
            [locationManager startUpdatingLocation];
        } break;
        default:
            break;
    }
}

Answer 1

Add this to the didChangeAuthorizationStatus:

case kCLAuthorizationStatusNotDetermined: {
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
        [locationManager requestAlwaysAuthorization];
    }

EDIT

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0 &&
    [CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedAlways
    ) {
    // Will open an confirm dialog to get user's approval
        [locationManager requestAlwaysAuthorization];
    }

    [locationManager startUpdatingLocation]; //Will update location immediately

Answer 2

I think your code might not have any problem. Here is the code that I am using:-

    #define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)

    if(IS_OS_8_OR_LATER) {
        [locationManager requestAlwaysAuthorization];
    }

    [locationManager startUpdatingLocation];

You might not understand how the authorization dialog works. For your information, the authorization dialog will only appear once (Either you allow it or disallow it). Afterwards, you can change the authorization from the Settings.

If you want the authorization dialog to re-appear, you should delete the app from you iPhone Simulator (Long press the app and tap the X button). When you relaunch the app from XCode into the iPhone Simulator, then only the authorization dialog will re-appear.