Struct VirtualList 

pub struct VirtualList { /* private fields */ }

A virtualised vertical list, measured or uniform per its handle. See the module docs.

Implementations

impl VirtualList

pub fn new( id: impl Into<ElementId>, handle: &VirtualListHandle, render_row: impl FnMut(usize, &mut Window, &mut App) -> AnyElement + 'static, ) -> Self

A list over handle whose row ix is render_row(ix, ..). Only rows near the viewport are built, each frame, so render_row should be cheap and must not assume it sees every index.

pub fn height(self, height: impl Into<Pixels>) -> Self

A fixed viewport height. Without one a measured list fills its parent’s height (size_full), which then needs a definite height itself, and a uniform list sizes to its rows (the row count times the measured row), capped by the space its parent offers. A uniform list with a height may still shrink below it as a flex item (min_h_0), so a bounded parent hands it its real viewport.

Trait Implementations

impl IntoElement for VirtualList

type Element = ViewElement<VirtualList>

The specific type of element into which the implementing type is converted. Useful for converting other types into elements automatically, like Strings

fn into_element(self) -> Self::Element

Convert self into a type that implements Element.

fn into_any_element(self) -> AnyElement

Convert self into a dynamically-typed AnyElement.

impl RenderOnce for VirtualList

fn render(self, _window: &mut Window, _cx: &mut App) -> impl IntoElement

Render this component into an element tree. Note that this method takes ownership of self, as compared to Render::render() method which takes a mutable reference.