How to track the movement of a finger on the touchpad in one direction and in the other?

Question

iPhone

The task is to make the circle on the site spin according to the movement of the finger on touch devices. Like a telephone dial on ancient telephones.

Answer 1

You can track the position of your finger through changedTouches :
https://developer.mozilla.org/en-US/docs/Web/Guide...
www.w3.org/TR/touch-events