Struct FlingAnimation 

pub struct FlingAnimation { /* private fields */ }

Drives a fling (decay) animation on a scroll target.

Each frame, it calculates the scroll DELTA based on the decay curve and applies it to the scroll target via the provided callback.

Implementations

impl FlingAnimation

pub fn new(runtime: RuntimeHandle) -> Self

Creates a new fling animation driver.

pub fn start_fling<F, G>( &self, initial_value: f32, velocity: f32, density: f32, on_scroll: F, on_end: G, )

where F: Fn(f32) -> f32 + 'static, G: FnOnce() + 'static,

Starts a fling animation with the given velocity.

Arguments

• initial_value - Current scroll position (used as reference)
• velocity - Initial velocity in px/sec (from VelocityTracker)
• density - Screen density for physics calculations
• on_scroll - Callback invoked each frame with scroll DELTA (not absolute position)
• on_end - Callback invoked when animation completes

pub fn cancel(&self)

pub fn is_running(&self) -> bool

Returns true if a fling animation is currently running.

Trait Implementations

impl Clone for FlingAnimation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.