duration property

Duration? duration

How long a morph should take, instead of how stiff it should be.

Sets the spring's speed while preset (or an explicit stiffness/damping pair) still decides its character — bouncy stays bouncy, just stretched to fit. Duration.zero disables the animation, so icon changes land instantly. Very short durations clamp to the fastest spring that damping ratio can express; see springForDuration.

Implementation

final Duration? duration;