From page source I can not gather enough information to know what kind of gesture you need to make - I mean, on which element you need to press and make a swipe. Is there a slide/progress bar you need to press and swipe or you just need to press on a “titleLbl” and while swiping it will change it’s value?
I was thinking if you have vertical progress bar, then I suppose that the bottom point of it is 0% and the most top point is 100%. By knowing what % you would like to apply, you also can calculate, regarding on elements top and bottom point, how much you need to swipe.
Let me know more and we could figure that out…