screenEvent
This gives you the ability to observe the MapboxCarScreen in use. If the ScreenManager is used directly this state will become inconsistent.
The events are shared by every MapboxScreenManager instance and up to the last 4 events are replayed to new observers. A MapboxScreenManager only executes the MapboxScreenOperation.REPLACE_TOP and MapboxScreenOperation.PUSH events emitted after it was created, so the MapboxScreenManager of a newly created Session does not repeat the screen changes of a previous one. An event for a key without a registered MapboxScreenFactory, or whose factory fails to create a screen, is ignored by the MapboxScreenManager.