Struct SpringParams 

pub struct SpringParams {
    pub stiffness: f32,
    pub damping_ratio: f32,
}

Damped-spring parameters for a SettleAnimation. advance_spring already generalizes over damping ratio, so the two settle use cases in this crate share one scheduler and differ only in these two numbers.

Fields

stiffness: f32

damping_ratio: f32

Implementations

impl SpringParams

pub const SETTLE_POLICY: Self

Settle-policy remapping (e.g. the liquid nav bar’s title-collapse snap): critically damped, settling in ≈0.35s, the iOS large-title snap feel.

pub const OVERSCROLL_BOUNCE: Self

Overscroll bounce-back: the spring a scroll container’s rubber-banded offset relaxes through once the finger releases (or a fling’s own velocity decays) while still past the edge. Fit to a UIScrollView bounce-back trace recorded on the iOS 26.5 Simulator (drag past the top edge, hold to zero velocity, release: -177pt to rest in 667ms) — see ios_fling_measurement.rs. Overdamped rather than critical: a critically-damped ζ=1 spring at the same stiffness overshoots the measured curve’s shape by 15-20x; this (stiffness, damping_ratio) pair was fit by least squares against the recorded trace, residual ≤2.9pt (mean 0.79pt) against a 177pt swing.

Trait Implementations

impl Clone for SpringParams

fn clone(&self) -> SpringParams

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SpringParams

impl Debug for SpringParams

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.