A11yRule class abstract

A single accessibility check that can be run against a captured widget tree snapshot.

Built-in checks (contrast, tap target size, semantic labels, ...) implement this, and teams can register their own by implementing it too — this is the extension point referenced in the design-system-awareness goal (custom tap-size / contrast minimums).

Implementers

• ContrastRule
• TapTargetSizeRule

Constructors

A11yRule()

const

Properties

description → String

Short human-readable description of what this rule checks.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

id → String

Stable identifier used in A11yViolation.ruleId and reports.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

check(List<A11yElementInfo> elements) → List<A11yViolation>

Inspects elements — a snapshot of the tree captured by the ElementTreeWalker — and returns any violations found.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited