Struct Accessibility 

pub struct Accessibility {
    pub bold_text: bool,
    pub high_contrast: bool,
    pub disable_animations: bool,
    pub invert_colors: bool,
    pub accessible_navigation: bool,
    pub always_use_24_hour_format: bool,
}

The accessibility settings the platform reports about its user.

The reference carries these on MediaQueryData as separate booleans; they are one struct here because they arrive from one query and are read together, and because a widget that honours one usually honours its neighbours.

Honoured by the framework: disable_animations. The rest are reported for the application to act on — saying so is more useful than a field that looks obeyed and is not.

Fields

bold_text: bool

The user has asked for heavier text everywhere.

high_contrast: bool

The user has asked for higher contrast than the design’s own.

disable_animations: bool

The user has asked for motion to be reduced or removed.

The framework honours this for its implicit animations — the ones a widget starts by itself when a value changes — by completing them at once instead of over time. The change still happens; it stops moving. That is what the setting asks for, and skipping the change instead would leave the interface wrong rather than still.

invert_colors: bool

The user has asked for inverted colours.

accessible_navigation: bool

Something is reading the screen aloud, or otherwise driving it without a pointer.

A hint rather than an instruction: it is how an interface knows that a control which only appears on hover will never appear.

always_use_24_hour_format: bool

The user’s clock format — true for 24-hour, false for 12.

Implementations

impl Accessibility

pub const NONE: Self

Nothing asked for: the settings of a user who has changed none of them.

pub fn with_overrides(self, over: AccessibilityOverrides) -> Self

The platform’s answer with an application’s AccessibilityOverrides laid over it.

Trait Implementations

impl Clone for Accessibility

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Accessibility

impl Debug for Accessibility

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

Formats the value using the given formatter.

impl Default for Accessibility

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Accessibility

impl PartialEq for Accessibility

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Accessibility