The MapCamera object describes the map's current viewport. It does not provide methods to change it: that is the responsibility of a MapController.
The MapCamera object also provides access to some other helpful methods that depend on it, such as pointToLatLng & latLngToPoint.
FlutterMap ChildTo get the camera from within the context of a FlutterMap widget, use MapCamera.of(context).
Calling this method in a build method will cause the widget to automatically rebuild when the MapCamera changes. See #2.-hooking-into-inherited-state for more information.
If this behaviour is unwanted, use #single-time instead.
If this throws a StateError, try wrapping the concerned widget in a Builder, to ensure the FlutterMap widget is parenting the BuildContext. If this has no effect, use #usage-outside-of-fluttermap instead.
FlutterMapTo get the camera from outside the context of the FlutterMap widget, you'll need to setup a MapController first: see Control Camera > #usage-outside-of-fluttermap.
Then, use the .camera getter.
Avoid using MapController.of(context).camera from within the context of FlutterMap, as it is redundant and less performant than using MapCamera.of(context) directly.