A constant indicating that the item's display priority is high.
- iOS 11.0+
- macOS 10.13+
- Mac Catalyst 13.0+
- tvOS 11.0+
An annotation view with this priority is removed from the map when its bounds collide with the bounds of another view with a higher priority. If the priorities of the two views are equal, the view furthest from the center of the map's visible region is hidden first.