Not getting current user location - iphone

Question

in .h file
#import <MapKit/MapKit.h>
#interface FirstViewController : UIViewController <MKMapViewDelegate,MKReverseGeocoderDelegate,CLLocationManagerDelegate>
{
}
in .m file
-(void)viewDidLoad
{
CLLocationManager *locationManager = [[[CLLocationManager alloc] init] autorelease];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
[super viewDidLoad];
}
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation
{
MKReverseGeocoder *geoCoder = [[MKReverseGeocoder alloc] initWithCoordinate:newLocation.coordinate];
geoCoder.delegate = self;
[geoCoder start];
}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
NSLog(#"locationManager:%# didFailWithError:%#", manager, error);
}
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFindPlacemark:(MKPlacemark *)placemark
{
MKPlacemark * myPlacemark = placemark;
NSString *kABPersonAddressCityKey;
NSString *city = [myPlacemark.addressDictionary objectForKey:(NSString*) kABPersonAddressCityKey];
lblAddress.text = city;
NSLog(#"city detail is:--> %#",city);
}
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error
{
NSLog(#"reverseGeocoder:%# didFailWithError:%#", geocoder, error);
}
This is the code which I have done to get the current location of user & print it in the label.
But the CLLocationManager delegate method (which are written above) is not called & I am not able to get the current address.
Please help me out.
Where I am doing mistake...? guide me.
Thanks.

Answer 1

Instead of autoreleasing the CLLocationManager instance, assign it to an ivar in your class. Then release it in -dealloc as usual (or in one of the delegate methods if you don't need it any longer).
I suspect your location manager is getting deallocated on the next turn of the run loop before having an opportunity to fire off its delegate methods.

Answer 2

In your method viewDidLoad:
-(void)viewDidLoad
{
CLLocationManager *locationManager = [[[CLLocationManager alloc] init] autorelease];
locationManager.delegate = self;
locationManager.distanceFilter = kCLDistanceFilterNone;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
myMapView.showsUserLocation = YES; // add this line
[super viewDidLoad];
}
And you are done!!!