closeSpring constant

SpringDescription const closeSpring

Spring profile for the iOS 26 liquid morph closing animation.

Tuned for Apple iOS 26 "snappy" exit physics: higher natural frequency (stiffness: 200.0, damping: 21.0, ω₀ ≈ 14.1 rad/s) for a fast, responsive dismissal (~240 ms) while preserving the signature 0.74 underdamped ratio for the rubber-band catch on the trigger button.

Implementation

static const SpringDescription closeSpring = SpringDescription(
  mass: 1.0,
  stiffness: 200.0,
  damping: 21.0,
);