Geolocation doesn't work even on device - iphone

Question

I am struggling with geolocation on simulator, but recently, I have tested it directly on device (iPhone) but the same issue remains, here is what I got when my app finish launching and the code of geolocation suppose to give me my location on the map (remember the picture above is for my app on iPhone and not with the simulator) :
so for my code, my app actually have a lot of views, but concerning this function, I have worked on the appdelegate(.m and .h) and the view concerning of showing the location on the map (PositionActuelleViewController).
appdelegate.m :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
sleep(3);
// Override point for customization after application launch.
self.locationManager=[[[CLLocationManager alloc] init] autorelease];
if([CLLocationManager locationServicesEnabled]) {
self.locationManager.delegate=self;
self.locationManager.distanceFilter=100;
[self.locationManager startUpdatingLocation];
}
// Add the view controller's view to the window and display.
[window addSubview:viewController.view];
[window makeKeyAndVisible];
return YES;
}
and in the same file after the dealloc method :
#pragma mark CLLocationManagerDelegate Methods
-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
MKCoordinateSpan span;
span.latitudeDelta=0.2;
span.longitudeDelta=0.2;
MKCoordinateRegion region;
region.span=span;
region.center=newLocation.coordinate;
[viewCont.mapView setRegion:region animated:YES];
viewCont.mapView.showsUserLocation=YES;
viewCont.latitude.text=[NSString stringWithFormat:#"%f",newLocation.coordinate.latitude];
viewCont.longitude.text=[NSString stringWithFormat:#"%f",newLocation.coordinate.longitude];
}
my PositionActuelleViewController.m file :
#import "PositionActuelleViewController.h"
#implementation PositionActuelleViewController
#synthesize mapView;
#synthesize latitude;
#synthesize longitude;
-(IBAction)goBackToMenu {
[self dismissModalViewControllerAnimated:YES];
}
-(IBAction)goToRechercherView;
{
rechercherViewController.modalTransitionStyle=UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:rechercherViewController animated:YES];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[mapView release];
[latitude release];
[longitude release];
[super dealloc];
}
#end
What am I missing here?

Answer 1

Does the delegate method -(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation ever get called? Maybe if you uncomment self.locationManager.distanceFilter=100; it will work because according to docs, distanceFilter property defines the minimum distance (measured in meters) a device must move laterally before an update event is generated.