Struct SemanticsScrollBy 

pub struct SemanticsScrollBy { /* private fields */ }

What a container does when a screen reader pages it, e.g. TalkBack’s scroll forward action or an accesskit scroll down. The two deltas are in layout pixels; the answer says whether anything moved.

This is Compose’s SemanticsActions.ScrollBy.

Implementations

impl SemanticsScrollBy

pub fn new(handler: impl Fn(f32, f32) -> bool + 'static) -> SemanticsScrollBy

pub fn invoke(&self, dx: f32, dy: f32) -> bool

Trait Implementations

impl Clone for SemanticsScrollBy

fn clone(&self) -> SemanticsScrollBy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SemanticsScrollBy

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for SemanticsScrollBy

impl PartialEq for SemanticsScrollBy

Two scroll actions always read as the same action, for the reason SemanticsCustomAction’s own comparison gives.

fn eq(&self, _other: &SemanticsScrollBy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.