Center the MKMapView onto my location when pressing a button

You could just set map view user tracking mode to MKUserTrackingModeFollow. It would automatically set map center on user location.- (IBAction)centerMapOnUserButtonClicked:(id)sender {    [self.mapView setUserTrackingMode:MKUserTrackingModeFollow animated:YES]; }

或者

[self.mapView setCenterCoordinate:self.mapView.userLocation.coordinate animated:YES];