OnMarkerDragListener

interface OnMarkerDragListener

A callback interface used when the user clicks on the marker.

onDragging	`abstract fun onDragging(marker: Marker): Unit` Called when the user drags the marker. It might lead to performance issues if overused.
onStartDragging	`abstract fun onStartDragging(marker: Marker): Unit` Called when the user starts dragging the marker.
onStopDragging	`abstract fun onStopDragging(marker: Marker): Unit` Called when the user finishes dragging the marker.