Question

I recall reading somewhere (I forget where) that if an iPhone application simply ran the CLLocationManager once, it didn’t come up with the most accurate results.

Is this accurate, and if so, how can I combat this problem? I want to come up with the most accurate GPS results, and I am wondering if only one time will create the best results.

Thanks for any help!

Answer 1

CLLocationManager *locationManager.desiredAccuracy = kCLLocationAccuracyBest;

Will return the best possible result for you. The delegate method

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

will continue to return the user’s location based on the accuracy preferences you have set.

If you only need the location once, you need to remember to call stopUpdatingLocation on self. If you need to update the user’s location continuously, do not call stopUpdatingLocation

I am using CoreLocation to get a user’s location, and it’s quite accurate for my use.