Question

I want to add a functionality in MKMapView .

I have a mapView with many annotations now I want that .. when I touch any annotation the whole view should be focus on that annotation . i.e. annotation A is in the upper right corner and when I touch that the MapView should show that A in the centre then .

Answer 1

In Annotation Delegate you have to set the Region for mapview specifying the center

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
   MKAnnotation *annotation= view.annotation;  // Get your annotaion here
   MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };
   region.center.latitude=annotation.coordinate.latitude;
   region.center.longitude=annotation.coordinate.longitude;
   region.span.latitudeDelta=0.001f;
   region.span.longitudeDelta=0.001f;
   [mapView setRegion:region animated:YES];
  //Do your other stuffs here
}