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.

See also:

  • SemanticsFlag.liveRegion, for a description of live regions.
Inheritance

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