cllocation

So I am dealing with some accuracy issues with iPhone GPS. I have an app which uses location. In the delegate method locationManager: didUpdateToLocation: fromLocation: I am being returned a location. From a bit of research, it appears the GPS isn't always accurate on the first result it returns, even when setting desiredAccuracy property to kCLLocationAccuracyBest . In order to get around this, I don't call stopUpdatingLocation before it's returned newLocation: at least 3 times (this is very quick). I have also played around with two other "requirements" for whether to stopUpdatingLocation

I have an array, allCollections, that holds programmatically-created arrays of CLLocations the user has recorded through my iOS app. Each sub-array in allCollections holds all the location points in a trip taken. I draw MKPolylines off of the CLLocations in the arrays in allCollections to represent those trips on an MKMapView. My question is this: With the polylines added to the map, how would I go about programmatically zooming and centering the map to display all of them? fundtimer -(void)zoomToPolyLine: (MKMapView*)map polyline: (MKPolyline*)polyline animated: (BOOL)animated { [map

I've been working on a location based app recently and am noticing some strange values for CLLocation. I often get a horizontalAccuracy of 1414 and a verticalAccuracy of -1 . Any clue what this indicates? As far as I can tell, these points are often very accurate. What is the difference between verticalAccuracy and horizontalAccuracy? The -1 for verticalAccuracy indicates that the altitude in the CLLocation is not valid. You only get altitude with a 3D GPS position. The 1414 for horizontalAccuracy indicates that the horizontal (lat/lon) position could be up to 1414m off (this is just an

I'm trying to get my current location, but the break point in didUpdateLocations is never being called. LocationManager: locationManager = [[CLLocationManager alloc] init]; [locationManager setDelegate:self]; [locationManager setDesiredAccuracy:kCLLocationAccuracyBest]; [locationManager setDesiredAccuracy:kCLDistanceFilterNone]; [locationManager startUpdatingLocation]; Delegate method: - (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations; I confirmed that location services and enabled and authorized. Why is the locationManager delegate method not being

I apologise for the redundancy of this topic, but in spite all the given answers, I can't identify the possibility of getting accuracyBest location updates when the app is terminated. I don't want to use monitoringSignificantChange, I want the best possible accuracy; I won't submit the app on the AppStore, so Apple restrictions are not a problem either. I have gone through these: - Location update even when app is killed/terminated - iOS update location even when app is terminated - Working with location updates when app is terminated - http://mobileoop.com/getting-location-updates-for-ios-7