scroll - iPhone UIScrollView Speed Check

Question

I know how to get the contentOffset on movement for a UIScrollView, can someone explain to me how I can get an actual number that represents the current speed of a UIScrollView while it is tracking, or decelerating?

Answer 1

There's an easier way: check the UISCrollview's pan gesture recognizer. With it, you can get the velocity like so:

CGPoint scrollVelocity = [[_scrollView panGestureRecognizer] velocityInView:self];