//YourViewController.h
@interface YourViewController : UIViewController <MKMapViewDelegate, CLLocationManagerDelegate>{
    IBOutlet MKMapView *map;
    BOOL isLocating;

}
@end

//YourViewController.m
#import "YourViewController.h"
#import "MapPlaceMark.h"

@implementation YourViewController {


// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
        // Custom initialization
    }
    return self;
}

- (void) viewDidLoad {
	[NSTimer scheduledTimerWithTimeInterval:60000 target:self selector:@selector(updateLocation) userInfo:nil repeats:YES];
}

- (void) updateLocation {

	isLocating = YES;
	CLLocationManager *locationManager=[[CLLocationManager alloc] init];
	locationManager.delegate=self;
	locationManager.desiredAccuracy=kCLLocationAccuracyNearestTenMeters;
	if (![locationManager locationServicesEnabled])
	{
		//replace with alert
		[atextfield setText:@"Location Services Are Not Enabled"];
	}
	[locationManager startUpdatingLocation];

}


#pragma mark LocationMethods
- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{
	if(isLocating == YES){
		CLLocationCoordinate2D location = [newLocation coordinate];
		//One location is obtained.. just zoom to that location
		NSLog([NSString stringWithFormat:@"%f,%f", location.latitude, location.longitude]);
		MKCoordinateRegion region;
		region.center=location;
		//Set Zoom level using Span
		MKCoordinateSpan span;
		span.latitudeDelta=.090;
		span.longitudeDelta=.090;
		region.span=span;
		[map setRegion:region animated:TRUE];
                MapPlaceMark *placemark=[[MapPlaceMark alloc] initWithCoordinate:location];
		[map addAnnotation:placemark];
		[placemark release];
		isLocating = NO;
	}	
	
	
}

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error
{
	[atextfield setText:@"Location search failed"];
}


- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation

{
    static NSString *identifier = @"com.companyname.pin";

    MKAnnotationView *pin = [ mapView dequeueReusableAnnotationViewWithIdentifier:identifier ];
    if ( !pin )
    {
		if ( annotation == [map userLocation]) {
			pin = [ [ MKAnnotationView alloc ] initWithAnnotation:annotation reuseIdentifier:identifier ];
		}	
		else{	
		pin = [ [ MKAnnotationView alloc ] initWithAnnotation:annotation reuseIdentifier:identifier ];
		}
    }
	
    pin.annotation = annotation;
	
    return pin;
}


}

@end

//MapPlaceMark.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>

@interface MapPlaceMark : NSObject <MKAnnotation> {
	CLLocationCoordinate2D coordinate;
	NSString *subTitle;
	NSString *Title;
}
@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
@property (readwrite, retain) NSString *subTitle;
@property (readwrite, retain) NSString *Title;
-(id)initWithCoordinate:(CLLocationCoordinate2D) coordinate;
- (NSString *)subtitle;
- (NSString *)title;

@end


//MapPlaceMark.m
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>

@interface MapPlaceMark : NSObject <MKAnnotation> {
	CLLocationCoordinate2D coordinate;
	NSString *subTitle;
	NSString *Title;
}
@property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
@property (readwrite, retain) NSString *subTitle;
@property (readwrite, retain) NSString *Title;
-(id)initWithCoordinate:(CLLocationCoordinate2D) coordinate;
- (NSString *)subtitle;
- (NSString *)title;

@end