getting different location even if I am not moving - ios

Question

I am using below code for getting longitude and latitude , but it gives me diifferent values even if I am not moving from my place
locationmanager=[[CLLocationManager alloc]init];
geocoder=[[CLGeocoder alloc]init];
locationmanager.delegate=self;
locationmanager.desiredAccuracy=kCLLocationAccuracyBest;
if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
[locationmanager requestWhenInUseAuthorization];
}
[locationmanager startUpdatingLocation];
-(void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
UIAlertView *alert=[[UIAlertView alloc]initWithTitle:#"error" message:#"Failed to get Location." delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil, nil];
[alert show];
}
-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
CLLocation *currentlocation=newLocation;
if (currentlocation!=nil)
{
longitude=currentlocation.coordinate.longitude;
latitude=currentlocation.coordinate.latitude;
}
[geocoder reverseGeocodeLocation:currentlocation completionHandler:^(NSArray *placemarks, NSError *error) {
} ];
}
please guide me, I want same location, if I am not moving from my place.

Answer 1

Cellular network location gives an approximate area were the phone existing. It is based on the service providers tower.So current location will automatically changes a bit depending on network/gps location tracking/accuracy.
I recommend you to get location using distance filter, so until you are in that region your current address will remain same as location only updates for every X meters.
locationManager.distanceFilter = 100;//Your own distance
i.e.,
self.locationManager = [[[CLLocationManager alloc] init] autorelease];
_locationManager.delegate = self;
// This is the most important property to set for the manager. It ultimately determines how the manager will
// attempt to acquire location and thus, the amount of power that will be consumed.
_locationManager.distanceFilter = 100;
// Once configured, the location manager must be "started".
[_locationManager startUpdatingLocation];
Hope this helps.

Answer 2

In ViewController.h file:
#interface ViewController : UIViewController<CLLocationManagerDelegate>
{
CLLocationManager *location;
}
In ViewController.m file:
- (void)viewDidLoad
{
location = [[CLLocationManager alloc] init];
location.delegate = self;
location.distanceFilter = 100;
[location requestWhenInUseAuthorization];
[location requestAlwaysAuthorization];
[location startUpdatingLocation];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
CLLocation *locati = [locations lastObject];
float lat=locati.coordinate.latitude;
float lon=locati.coordinate.longitude;
NSLog(#"%f %f",lat,lon);
[location stopUpdatingLocation];
}
In your info.plist add :