How to center map view while tracking user - iphone

Question

I am just wondering how to center the map view as the user is vein tracked with CLLocationmanager and map kit
This is currently how I am tracking the user and updating the location etc.
- (void)viewDidLoad
{
// Initialize the TileOverlay with tiles in the application's bundle's resource directory.
// Any valid tiled image directory structure in there will do.
NSString *tileDirectory = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"Tiles"];
TileOverlay *overlay = [[TileOverlay alloc] initWithTileDirectory:tileDirectory];
[map addOverlay:overlay];
// zoom in by a factor of two from the rect that contains the bounds
// because MapKit always backs up to get to an integral zoom level so
// we need to go in one so that we don't end up backed out beyond the
// range of the TileOverlay.
MKMapRect visibleRect = [map mapRectThatFits:overlay.boundingMapRect];
visibleRect.size.width /= 2;
visibleRect.size.height /= 2;
visibleRect.origin.x += visibleRect.size.width / 2;
visibleRect.origin.y += visibleRect.size.height / 2;
map.visibleMapRect = visibleRect;
// map.showsUserLocation = YES;
//location tracking
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
//Show the users location.. hopefully it works with tracking.
map.showsUserLocation = YES;
[overlay release]; // map is now keeping track of overlay
}
//OverLays Topographical map
- (MKOverlayView *)mapView:(MKMapView *)mapView viewForOverlay:(id <MKOverlay>)overlay
{
TileOverlayView *view = [[TileOverlayView alloc] initWithOverlay:overlay];
view.tileAlpha = 0.6;
return [view autorelease];
}
//Tracks Users location and Prints out the Lat and Lon
-(void)locationManager:(CLLocationManager *)manager
didUpdateToLocation:(CLLocation *)newLocation
fromLocation:(CLLocation *)oldLocation
{
CLLocationCoordinate2D here = newLocation.coordinate;
NSLog(#"%f %f ", here.latitude, here.longitude);
}

Answer 1

The below method focus a particular location in the map,
//Don't forget to add this method to your header also
-(void)focusLocationInMap:(CLLocationCoordinate2D)location
{
MKCoordinateRegion region;
MKCoordinateSpan span;
span.latitudeDelta=0.01;
span.longitudeDelta=0.01;
region.span=span;
region.center=location;
[self.yourMapView setRegion:region animated:TRUE];
[self.yourMapView regionThatFits:region];
}
You could use it anywhere by passing coordinates to it,
CLLocationCoordinate2D here = newLocation.coordinate;
[self focusLocationInMap:here];

Answer 2

here.coordinate is not correct, should be just 'here'