Adds an array of overlay objects to the map at the specified level.
- iOS 7.0+
- macOS 10.9+
- tvOS 9.0+
Positioning an overlay at a specific level places that overlay’s visual representation in front of or behind other map content such as map labels and point-of-interest icons.
This method adds the specified overlays to the end of the list of overlay objects at the given level. Adding the overlays also causes the map view to begin monitoring the area they represent. As soon as the bounding rectangle of an overlay intersects the visible portion of the map, the map view calls your delegate’s
map method to get the renderer object to use when drawing that overlay.
To remove multiple overlays from a map, use the