Is there a way to check if Scroll Rect is currently being dragged without using events?

Questions & Answers
1

As title says, i want to check if ScrollRect is currently dragged, but in some easy way, without implementing Drag interfaces, only from Scroll Rect reference if thats possible.

When I change my inspector view from Normal to Debug, there is a bool variable called “Dragging” in Scroll Rect and it shows exactly what I want, but I can’t get its value from code. Is there any way to get its value or some other way to check if Scroll Rect is being dragged?

3

@Molioo, you can use default Eventsystem callbacks.

  • Attach a script to the gameobject to which you have added the Scroll Rect component.
  • Inside that script inherit the interfaces named as IBeginDragHandler and IEndDragHandler (can use IDragHandler instead IBeginDragHandler).
  • Implement the methods from the interfaces named as OnBeginDrag and OnEndDrag
  • Now you have access to that private Dragging flag…well…sort of. :stuck_out_tongue:

That’s it. Hope this helps.

2

No, not without using reflection to access internal fields. As you might know large parts of the new UI system is open source. As you can see the m_Dragging bool is a private field of the ScrollRect class. If you want you can build your own UnityEngine.UI version but of course you have to keep it up to date.