Display MKMapView grayscale

Question

Is it possible to change MKMapView display to grayscale ?

Answer 1

No, the MapKit API does not support any manipulation of the tiles. If you're interested in just a static grayscale map, you might be successful in taking a MKMapSnapshot and manipulate the image afterwards. This won't work for an interactive map, though.

You can also put a semi-transparent image view on top of the mapView. This won't allow you to completely decolorize the underlying mapView. However, you might achieve a similar effect. See the Metropolis Compass app for example.