CODEWITHSUNDEEP
iosmapkitcore-location
Sakhare Nikhil
Sakhare Nikhil

Reputation: 43

How to get users current location on app launch

I want to get users current location(lat,long) on the app launch only..i dont want to use delegate method for frequent location updates..I m not using maps just need current location on launch..how should i do this??

I am using the code below but its not working.

CLLocationManager *locationManager;
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate=self;
locationManager.desiredAccuracy=kCLLocationAccuracyBest;
locationManager.distanceFilter=kCLDistanceFilterNone;
[locationManager startUpdatingLocation];

CLLocation *location;
location = [locationManager location];
CLLocationCoordinate2D coord;
coord.longitude = location.coordinate.longitude;
coord.latitude = location.coordinate.latitude;
NSLog(@"latitude %f longitude %f",coord.latitude,coord.longitude);

Output:- latitude 0.000000 longitude 0.000000

please help..

Upvotes: 1

Views: 2355

Answers (4)

abhi
abhi

Reputation: 551

import <CoreLocation/CoreLocation.h>

delegate: CLLocationManagerDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // System alert for Allowing current location of user.

    // Location manager object creation.
    locationManager = [[CLLocationManager alloc] init];`enter code here`

    locationManager.delegate = self;
    locationManager.distanceFilter = kCLDistanceFilterNone;
    locationManager.desiredAccuracy = kCLLocationAccuracyBest;
    [locationManager startUpdatingLocation];
}


// iOS >= 6.0.
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
    [locationManager stopUpdatingLocation];
}

// iOS < 6.0
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    [locationManager stopUpdatingLocation];
}

Upvotes: 0

kamalesh kumar yadav
kamalesh kumar yadav

Reputation: 966

better you use the delegate method to get user location and in didupdateLocation method stop it I think this url may help you iPhone SDK: Track users location using GPS and in

-(void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
       fromLocation:(CLLocation *)oldLocation{
CLLocationCoordinate2D here =  newLocation.coordinate;
NSLog(@"%f  %f ", here.latitude, here.longitude);
[locationManager stopUpdatingLocation];
}

and you done with it...

Upvotes: 1

Anil Varghese
Anil Varghese

Reputation: 42977

Use CLLocationManagerDelegate method 

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation
           fromLocation:(CLLocation *)oldLocation
{
    [_locationManager stopUpdatingLocation];
    NSLog(@"latitude %f longitude %f",newLocation.coordinate.latitude,,newLocation.coordinate.longitude);

}

Above method is deprecated in iOS6, use locationManager:didUpdateLocations: instead 

- (void)locationManager:(CLLocationManager *)manager
     didUpdateLocations:(NSArray *)locations

Upvotes: 1

Jay Gajjar
Jay Gajjar

Reputation: 2741

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
    // NSLog(@"didUpdateToLocation: %@", newLocation);
    CLLocation *currentLocation = newLocation;

    // Reverse Geocoding
    //  NSLog(@"Resolving the Address");
    [geocoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray *placemarks, NSError *error) {
        //  NSLog(@"Found placemarks: %@, error: %@", placemarks, error);
        if (error == nil && [placemarks count] > 0) {
            placemark = [placemarks lastObject];
            [locationManager stopUpdatingLocation];

        } else {
            NSLog(@"%@", error.debugDescription);
        }
    } ];
}

Upvotes: 1

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