ScrollVectorProvider unspecified API

```
public interface RecyclerView.SmoothScroller.ScrollVectorProvider

                    
```
An interface which is optionally implemented by custom LayoutManager to provide a hint to a SmoothScroller about the location of the target position.

Method Summary

Modifier and Type	Method	Description
`abstract PointF`	`computeScrollVectorForPosition(int targetPosition)`	Should calculate the vector that points to the direction where the target positioncan be found.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - computeScrollVectorForPosition
```
@Nullable() abstract PointF computeScrollVectorForPosition(int targetPosition)
```
    Should calculate the vector that points to the direction where the target positioncan be found.
    This method is used by the LinearSmoothScroller to initiate a scroll towardsthe target position.
    The magnitude of the vector is not important. It is always normalized before beingused by the LinearSmoothScroller.
    LayoutManager should not check whether the position exists in the adapter or not.
    
    Parameters:
    
    targetPosition - the target position to which the returned vector should point