UpdateLiveRegionEvent class

An event which triggers a polite announcement of a live region.

This requires that the semantics node has already been marked as a live region. On Android, TalkBack will make a verbal announcement, as long as the label of the semantics node has changed since the last live region update. iOS does not currently support this event.

Deprecated. This message was never implemented, and references to it should be removed.

See also:

  • SemanticsFlag.liveRegion, for a description of live regions.
Inheritance
Annotations
  • @Deprecated('This event has never been implemented and will be removed in a future version of Flutter. References to it should be removed. ' 'This feature was deprecated after v1.12.16.')

Constructors

UpdateLiveRegionEvent()
Creates a new UpdateLiveRegionEvent.
const

Properties

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
type String
The type of this event. [...]
final, inherited

Methods

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

Operators

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