SemanticLabelRule class

Flags semantics nodes that are interactive (expose a tap or long-press action) but carry no label, value, or tooltip for assistive technology to announce.

Reads the actual SemanticsNode tree rather than the Element tree, so it catches widgets that set semantics via a custom RenderObject (e.g. IconButton, InkWell) as well as ones using an explicit Semantics widget — either way, this is what a screen reader would actually encounter. Text fields are skipped, since they're conventionally described by their value/hint rather than a label. Mirrors the filtering in Flutter's own flutter_test LabeledTapTargetGuideline.

Inheritance

• Object
• A11ySemanticsRule
• SemanticLabelRule

Constructors

SemanticLabelRule()

const

Properties

description → String

Short human-readable description of what this rule checks.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

id → String

Stable identifier used in A11yViolation.ruleId and reports.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

check(List<A11ySemanticsNodeInfo> nodes) → List<A11yViolation>

Inspects nodes — a snapshot captured by SemanticsTreeWalker — and returns any violations found.

override

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