CLLocationManager does not send location to the didUpdateLocations method - iphone

Question

I am working on an iOS 6.1 iPhone app with ARC enabled which will be using a CLLocationManager to track the devices position.
UPDATE
I have a DestinationViewController which implements the CLLocationManagerDelegate. It creates the CLLocationManager and does the setup. I have imported the CoreLocation framework to my project.
I have tried to debug a lot and can see that the CLLocationManager is created and no errors are present. But the problem is that the [CLLocationManager authorizationStatus] is kCLAuthorizationStatusNotDetermined
both before [self.locationManager startUpdatingLocation]; and also after.
So there is no prompt about asking permission to use location services for this app. Because of that this method is never fired.
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:
(NSArray *)locations
I have also tried to search the web for hours to look for similar examples but with no luck. Code from DestinationViewController is posted below.
Interface
#import <UIKit/UIKit.h>
#import <CoreLocation/CoreLocation.h>
#interface DestinationViewController : UIViewController <CLLocationManagerDelegate>
Implementation
#import "DestinationViewController.h"
#interface DestinationViewController ()
#property (strong, nonatomic) CLLocationManager *locationManager;
#end
#implementation DestinationViewController
// Initializer
- (CLLocationManager *)locationManager
{
if (!_locationManager) {
_locationManager = [[CLLocationManager alloc] init];
}
return _locationManager;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[self startLocation];
}
- (void)startLocation
{
self.locationManager.delegate = self;
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest;
self.locationManager.distanceFilter = 1;
NSString *error;
if (![CLLocationManager locationServicesEnabled]) {
error = #"Error message";
}
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if (status == kCLAuthorizationStatusRestricted ||
status == kCLAuthorizationStatusDenied ||) {
error = #"Error message";
}
if (error) {
NSLog(error);
}
else
{
status = [CLLocationManager authorizationStatus];
self.locationManager.pausesLocationUpdatesAutomatically = NO;
[self.locationManager startUpdatingLocation];
status = [CLLocationManager authorizationStatus];
NSLog(#"CLLocationManager is %#", self.locationManager);
NSLog(#"Location is %#", self.locationManager.location);
[self updateUI];
}
}
- (void)locationManager:(CLLocationManager *)manager
didUpdateLocations:(NSArray *)locations
{
CLLocation *recentLocation = [locations lastObject];
NSLog(#"Found location");
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
NSLog(#"didFailWithError");
}
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{
NSLog(#"Change in authorization status");
}

Answer 1

Your code should work.
Make sure your application is authorized to use location services.
You can use following method to check authorization status in code
+ (CLAuthorizationStatus)authorizationStatus
Edit
kCLAuthorizationStatusNotDetermined is most likely caused by location services being disabled. You should check location services status first. Code should be like this
if([CLLocationManager locationServicesEnabled]) {
// Location Services Are Enabled
switch([CLLocationManager authorizationStatus]) {
case kCLAuthorizationStatusNotDetermined:
// User has not yet made a choice with regards to this application
break;
case kCLAuthorizationStatusRestricted:
// This application is not authorized to use location services. Due
// to active restrictions on location services, the user cannot change
// this status, and may not have personally denied authorization
break;
case kCLAuthorizationStatusDenied:
// User has explicitly denied authorization for this application, or
// location services are disabled in Settings
break;
case kCLAuthorizationStatusAuthorized:
// User has authorized this application to use location services
break;
}
} else {
// Location Services Disabled
}

Answer 2

I finally solved it! My delegate wasn't set properly.
Instead of doing:
self.locationManager.delegate = self;
I changed it to:
[self.locationManager setDelegate:self];
And now my delegate methods get fired.
Thanks to those who helped!