how to detect TouchPhase.Ended in UI?

 void TouchAndHold()
     {
         for (var i = 0; i < Input.touchCount; ++i) 
         { 
             Touch touch = Input.GetTouch(i);
             int pointerID = touch.fingerId;
 
             if(EventSystem.current.IsPointerOverGameObject(pointerID))
             {
                 // touch on ui
                 return;
             }
 
             if (touch.phase == TouchPhase.Began ) //Hold
             {
                 // if active , rotate animation will start
                 ReadyToJumpWithRotateArrow();
             }  
             else if (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled) //Release
             {
                 MoveUsingRotateArrow ();
             }
 
         }
     }

Hi sifu, i using code above for my game . I stuck at touchphase.ended . I try using bool but still not working. Any ideas how to solve this?