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AppBarScrollState

tessera_components::app_bar

Struct AppBarScrollState 

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pub struct AppBarScrollState { /* private fields */ }
Expand description

Retained height, overlap, and settling motion for a scrolling top app bar.

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impl AppBarScrollState

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pub fn collapsed_fraction(&self) -> f32

Returns zero when expanded and one when fully collapsed.

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pub fn height_offset(&self) -> Dp

Returns the negative logical height offset applied to the bar.

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pub fn content_offset(&self) -> Dp

Returns the accumulated logical content displacement, at most zero.

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pub fn set_collapsed_fraction(&mut self, fraction: f32)

Sets a normalized collapsed amount immediately, cancelling a pending snap.

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pub fn reset(&mut self)

Restores an expanded, unscrolled bar and stops its motion.

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pub fn is_animating(&self) -> bool

Returns whether motion or a wheel-settling frame is still pending.

Trait Implementations§

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impl Default for AppBarScrollState

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fn default() -> Self

Returns the “default value” for a type. Read more

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