Struct ScrollState 

pub struct ScrollState { /* private fields */ }

Inertial scroll state (single axis Y).

Implementations

impl ScrollState

pub fn new() -> Self

pub fn set_overscroll_enabled(&mut self, enabled: bool)

Enable or disable the overscroll rubber-band effect (enabled by default).

pub fn overscroll_offset(&self) -> f32

Returns the current overscroll offset (negative = pulled down past top, positive = pulled up past bottom).

pub fn set_nested_scroll_parent(&self, conn: NestedScrollConnection)

Set a parent nested scroll connection for coordinated scrolling. This enables parent-child scroll coordination (e.g., collapsing toolbars, pull-to-refresh). Call this before the scroll area is first composed.

pub fn set_show_scrollbar(&self, show: bool)

Enable or disable the scrollbar (enabled by default).

pub fn set_viewport_height(&self, h: f32)

pub fn set_content_height(&self, h: f32)

pub fn set_overscroll(&self, val: f32)

Set the overscroll value directly. Used by pull-to-refresh to reset overscroll when the refresh completes.

pub fn set_offset(&self, off: f32)

pub fn get(&self) -> f32

pub fn scroll_immediate(&self, dy: f32) -> f32

Consume dy (pixels), clamp to bounds, return leftover. When overscroll is enabled and the scroll boundary is reached, applies rubber-band resistance instead of returning leftover.

pub fn tick(&self) -> bool

Advance physics one tick; returns true if animating.

Trait Implementations

impl Default for ScrollState

fn default() -> Self

Returns the “default value” for a type.