Question

one more bad day god knows whats the problem with this but delegate methods for CLLocation Mangaer are not called once I click a refresh button, on click of this button I ask location manager to update location

-(void) viewWillAppear:(BOOL)animated{


locationManager=[[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation;
locationManager.delegate = self;
[locationManager startUpdatingLocation];

}

 - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{

NSLog(@"failed");

}

  - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{


NSLog(@"current lat= %f and long=%f ", newLocation.coordinate.latitude, newLocation.coordinate.longitude);

NSDate *eventDate = newLocation.timestamp; 
NSTimeInterval howRecent = [eventDate timeIntervalSinceNow];

if (abs(howRecent) < 10) {

    [lat setText:[ NSString stringWithFormat:@"%f", newLocation.coordinate.latitude]];
    [lon setText:[ NSString stringWithFormat:@"%f", newLocation.coordinate.longitude]];

}

else {
    [lat setText:@"Not changed"];
    [lon setText:@"Not changed"];
}

}

  -(IBAction) refrechLoc{

NSLog(@"updating location");
[locationManager startUpdatingLocation];

}
Please help me resolve this issue.

Thanks in advance

Answer 1

It seems that it is beginning updating on viewWillAppear, so it won’t update the location until it is not stopped by stopUpdatingLocation. If you want to restart updating you should call stopUpdatingLocation before startUpdatingLocation:

-(IBAction) refrechLoc{
    NSLog(@"updating location");
    [locationManager stopUpdatingLocation];
    [locationManager startUpdatingLocation];
}

imho, there is no need in location updating restart in general