Algorithm to implement kinetic scrolling
What are some good algorithms for creating a kinetic scrolling implementation? The feature would be tested on a custom UI list. While I am targeting mobile devices (those that do not have this feature built-in), any algorithm or code example from different programming field may also suit.
Answer
Since this was originally asked, I have since carefully read the source code for pastrykit, the framework in which apple has exactly duplicated their kinetic scrolling in javascript. There is no particle physics loop- The velocity of the touch is measured at the exact moment that the finger is lifted. From that point forward, the scroll is animated using a simple easing function that uses the velocity as an input parameter.