NavigationRouteTrackingStateUpdateObserver
public protocol NavigationRouteTrackingStateUpdateObserver : Observer
An observer to receive route tracking state updates.
The information about the route state is represented by RouteTrackingState
.
When the driver deviates or returns to the active route, the navigation engine sends route-tracking state updates to the observer.
To start receiving route tracking state updates, become an observer using Navigation.addRouteTrackingStateUpdateObserver(_ observer:)
:
To stop receiving route tracking state updates, remove the previously added observer using Navigation.removeRouteTrackingStateUpdateObserver(_ observer:)
:
Important
This is a Public Preview API. It may be changed or removed at any time.-
Reports that the driver is following the route or has deviated from the active route.
Declaration
Swift
func onRouteTrackingStateUpdate(routeTrackingState: RouteTrackingState)
Parameters
routeTrackingState
The current route tracking state.