Set annotation's title as current address

Question

I want to get the current location\'s address and set it to the annotation\'s title. But it didn\'t work. I think it\'s because of the block, but I don\'t know how to fix it. An

Answer 1

I should implement this method

- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id )annotation{}

Sorry for that stupid question.