add
abstract fun addOnDocumentEditingPageSelectionChangeListener(@NonNull listener: DocumentEditingManager.OnDocumentEditingPageSelectionChangeListener)
Adds a OnDocumentEditingPageSelectionChangeListener to get notified when document page selection has changed. If the listener has already been added previously, this method will be a no-op. Adding null is not allowed, and will result in an exception.
Parameters
listener
OnDocumentEditingPageSelectionChangeListener that should be notified. Must be non-null.