RegionGraphObserver
public protocol RegionGraphObserver : Observer
                Protocol for observing changes in RegionGraph.
Important
This is a Public Preview API. It may be changed or removed at any time.- 
                  
                  
Reports changes in structure and/or state of the map structure or any error that happens during the process.
Declaration
Swift
func onRegionGraphChanged(event: RegionGraphChangeEvent)Parameters
eventType of the event occuring.
 
        
 
          TomTom SDK for iOS (0.40.0)
        
          RegionGraphObserver