Reload or Refresh the MKMapView based on the different preferences or sort types

Question

I have an application where the map view has several pins and annotations. These pins should refresh or reload based on the various sort options I have on my view. e.g. The pins represent various buildings, and the filter options are like, Library, Museum, Movie Theater, All Attractions, etc.

I have tried using

[MapView reloadInputViews];

based on the filtered array after choosing an option. But it simply does not work for me. Any ideas how this would be implemented? Thanks in advance!

Answer 1

Use [MKMapView removeAnnotations:] and [MKMapView addAnnotation:] to change the pins that are on the map.