add
open fun addOnRailwayCrossingListener(listener: NavigationManager.OnRailwayCrossingListener)
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Add a OnRailwayCrossingListener to NavigationManager to subscribe to railway event(s).
open fun addOnRailwayCrossingListener(listener: NavigationManager.OnRailwayCrossingListener, @Nullable() executor: Executor)
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Add a OnRailwayCrossingListener to NavigationManager to subscribe to railway event(s).
Parameters
executor
Executor which will execute listener's callbacks