Location Manager is not updating location - ios

Question

I have the following code:
- (void) viewWillAppear {
[self startSignificantChangeUpdates];
}
- (void)startSignificantChangeUpdates
{
if ([CLLocationManager locationServicesEnabled])
{
NSLog(#"start significant changes");
if (nil == locationManager)
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
[locationManager startMonitoringSignificantLocationChanges];
}
}
problem is that the location manage is not calling its delegate function
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
What can I do?

Answer 1

In your .h file:
#import <CoreLocation/CoreLocation.h>
#interface ViewController : UIViewController <CLLocationManagerDelegate>
In your .m file:
#implementation ViewController {
// This is a private variable, used within this file only
CLLocationManager *locationManager;
}
-(void)viewDidLoad {
locationManager = [[CLLocationManager alloc] init];
}
-(void)viewWillAppear {
// If the delegate is still not being set, try putting this code into viewDidAppear
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
}
-(void)locationManger:(CLLocationManager *)manager didFailWithError:(NSError *)error {
NSLog(#"didFailWithError: %#", error);
}
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
NSLog(#"didUpdateToLocation: %#", [locations lastObject]);
CLLocation *currentLocation = [locations lastObject];
[locationManager stopUpdatingLocation];
}
For more information about getting the user's location, look at this guide, which I used to implement location into an app of mine: http://www.appcoda.com/how-to-get-current-location-iphone-user/

Answer 2

How are you testing this? If you are running this in the simulator, you can go to Debug->Location->Freeway Drive. You can put a break point in locationManager:didUpdateToLocation method or even put a log statement to log the current location coordinates. You should see it work.

Answer 3

Please replace this line
[locationManager startMonitoringSignificantLocationChanges];
with this code
[locationController.locationManager startUpdatingLocation];
and then check
- (void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
}