Question

In my app, I used core location & Mapkit framework with mapview. When wwe install the app,it shows me alert like ” would like to use current location” by default without coding for the one time only. And if i select “don’t allow”, the map view is just shown blue background?? and if i select “ok” then it works fine.

Help me!

my code is follow:

Appdelegate.m

CLLocationManager *locationManager;

    CLLocation *userLocation;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
    // Override point for customization after application launch.

    [self createEditableCopyOfDatabaseIfNeeded];

    //=========================================Location Manager

    if(locationManager == nil)

        locationManager =[[CLLocationManager alloc] init];

    self.locationManager.delegate = self;

    self.locationManager.desiredAccuracy= kCLLocationAccuracyBest;

    self.locationManager.distanceFilter= 5;

    [locationManager startUpdatingLocation];
    [locationManager startUpdatingHeading];
    //==========================================
}

-(void) locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{
    NSLog(@"new location");

    self.userLocation=newLocation;

    NSLog(@"user llocation %f , %f",userLocation.coordinate.latitude,userLocation.coordinate.longitude);

    [self.locationManager startMonitoringSignificantLocationChanges];
}


Mapview.h
{
IBOutlet MKMapView *map;

        CLLocation         *currentLocation;
        NSString           *specificLatitude;
        NSString           *specificLongitude;

    MKCoordinateRegion  region;
}

Mapview.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
    [APPDELEGATE.locationManager startUpdatingLocation];


}
- (void)viewWillAppear:(BOOL)animated
{
self.map.delegate = self;

    // Ensure that you can view your own location in the map view.
    [self.map setShowsUserLocation:YES];
}

-(void)viewDidAppear:(BOOL)animated{


    currentLocation =APPDELEGATE.userLocation;

    region.center = self.currentLocation.coordinate;
    MKCoordinateSpan span;
    span.latitudeDelta = 0.05;
    span.longitudeDelta = 0.03;
    region.span = span;
    [map setRegion:region animated:TRUE];
    [self searchPressed];

    NSLog(@"Mapview %f %f",currentLocation.coordinate.latitude,currentLocation.coordinate.longitude
          );

}

Answer 1

If you select “Don’t Allow” then call this delegate.

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
     //Do something
}