SemanticsEvent class

An event sent by the application to notify interested listeners that something happened to the user interface (e.g. a view scrolled).

These events are usually interpreted by assistive technologies to give the user additional clues about the current state of the UI.

Implementers

Constructors

SemanticsEvent(String type)
Initializes internal fields. [...]
const

Properties

type → String
The type of this event. [...]
final
hashCode → int
The hash code for this object. [...]
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

getDataMap() → Map<String, dynamic>
Returns the event's data object.
toMap({int nodeId }) → Map<String, dynamic>
Converts this event to a Map that can be encoded with StandardMessageCodec. [...]
toString() → String
Returns a string representation of this object.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

operator ==(dynamic other) → bool
The equality operator. [...]
inherited