Scroll Mechanics
This is an example of a simple scroll view mechanics implementation.
Important
I use single animation for contentOffset to simplify the example:
contentOffsetAnimation = TimerAnimation(
duration: duration,
animations: { [weak self] _, time in
self?.contentOffset = parameters.value(at: time)
},
completion: { [weak self] finished in
guard finished && intersection != nil else { return }
let velocity = parameters.velocity(at: duration)
self?.bounce(withVelocity: velocity)
})
In the production you should use a separate animation for each of the coordinates (x and y) to achieve correct behaviour.