Why ScrollRect delta doesn't change when I modified normalizedPosition?

Hi there,
I changed normalizedPosition value by code when I'm dragging scrollrect (not release finger), but scroll delta doesn't change, so scrollview come back to before normalizedPosition changed when I keep dragging (still not release finger). Someone help.

 

ScrollRect uses current mouse position - start mouse position to update/calculate normalizedposition (instead of for instance using delta or otherwise handling any updates to normalizedposition).
The source for ScrollRect in 5.1 is here:
https://bitbucket.org/Unity-Technol...8/UnityEngine.UI/UI/Core/ScrollRect.cs?at=5.1

I have the same problem and thinking about overriding the OnDrag function where it calculates the delta (line 256 -
var pointerDelta = localCursor - m_PointerStartLocalCursor;
) to use eventData.delta instead. But havent tried if it would work as expected yet.

 

It worked, Thanks a lot!!!

Code (CSharp):

1. public class Scroller : ScrollRect
2. {
3.     PointerEventData m_beginEventData;
4.     public override void OnBeginDrag(PointerEventData eventData)
5.     {
6.         base.OnBeginDrag(eventData);
7.         m_beginEventData = eventData;
8.     }
9.     public void Reset()
10.     {
11.         OnBeginDrag(m_beginEventData);
12.     }
13. }

Reset() after modified normalizedposition.