Struct CollapsingHeader 

pub struct CollapsingHeader<Msg = Callback> { /* private fields */ }

A header over a scroll region, interpolated between two heights by the region’s offset.

Implementations

impl<Msg: Clone + 'static> CollapsingHeader<Msg>

pub fn new<W: Widget<Msg> + 'static>( body: impl Widget<Msg> + 'static, build: impl Fn(HeaderState) -> W + 'static, ) -> Self

A header built from build, over the scroll region body.

The expanded height is the body’s own top padding; see the module documentation for why that is the number rather than a second one here.

pub fn expanded_height(self, height: f32) -> Self

The height when nothing has scrolled, overriding the body’s top padding.

pub fn collapsed_height(self, height: f32) -> Self

The height it stops shrinking at. Ignored by CollapsingHeader::floating.

pub fn floating(self) -> Self

Goes entirely instead of stopping at a toolbar, leaving the whole window to the content — a reading view, where the chrome is worth its room only while somebody is choosing what to read.

pub fn build(self) -> ScrollOverlay<Msg>

The widget: the body with the header drawn over it.