ScrollRect.OnEndDrag

Description

Handling for when the content has finished being dragged.

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems; // Required when using event data

public class ExampleClass : MonoBehaviour, IEndDragHandler // required interface when using the OnEndDrag method.
{
    //Do this when the user stops dragging this UI Element.
    public void OnEndDrag(PointerEventData data)
    {
        Debug.Log("Stopped dragging " + this.name + "!");
    }
}