Android.Service.Voice Namespace

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Provides services, sessions, requests, and hotword detectors for a voice interaction assistant.

Classes

Name	Description
AlwaysOnHotwordDetector	A class that lets a VoiceInteractionService implementation interact with always-on keyphrase detection APIs.
AlwaysOnHotwordDetector.Callback	Callbacks for always-on hotword detection.
AlwaysOnHotwordDetector.EventPayload	Additional payload for `Callback#onDetected`.
AlwaysOnHotwordDetector.ModelParamRange	A ModelParamRange is a representation of supported parameter range for a given loaded model.
VisibleActivityInfo	The class is used to represent a visible activity information.
VisibleActivityInfo.InterfaceConsts	Provides constants from the parcelable interface implemented by visible activity information.
VoiceInteractionService	Top-level service of the current global voice interactor, which is providing support for hotwording, the back-end of a `android.app.VoiceInteractor`, etc.
VoiceInteractionSession	An active voice interaction session, providing a facility for the implementation to interact with the user in the voice interaction layer.
VoiceInteractionSession.AbortVoiceRequest	A request to report that the current user interaction can not be completed with voice, as per `android.app.VoiceInteractor.AbortVoiceRequest VoiceInteractor.AbortVoiceRequest`.
VoiceInteractionSession.ActivityId	Represents the id of an assist source activity.
VoiceInteractionSession.AssistState	Represents assist state captured when this session was started.
VoiceInteractionSession.CommandRequest	A generic vendor-specific request, as per `android.app.VoiceInteractor.CommandRequest VoiceInteractor.CommandRequest`.
VoiceInteractionSession.CompleteVoiceRequest	A request to simply inform the user that the voice operation has completed, as per `android.app.VoiceInteractor.CompleteVoiceRequest VoiceInteractor.CompleteVoiceRequest`.
VoiceInteractionSession.ConfirmationRequest	A request for confirmation from the user of an operation, as per `android.app.VoiceInteractor.ConfirmationRequest VoiceInteractor.ConfirmationRequest`.
VoiceInteractionSession.Insets	Information about where interesting parts of the input method UI appear.
VoiceInteractionSession.InterfaceConsts	Provides memory-trim constants from the component-callback interface implemented by a voice interaction session.
VoiceInteractionSession.PickOptionRequest	A request for the user to pick from a set of option, as per `android.app.VoiceInteractor.PickOptionRequest VoiceInteractor.PickOptionRequest`.
VoiceInteractionSession.Request	Base class representing a request from a voice-driver app to perform a particular voice operation with the user.
VoiceInteractionSessionService	An active voice interaction session, initiated by a `VoiceInteractionService`.

Interfaces

Name	Description
VoiceInteractionSession.IVisibleActivityCallback	Callback interface for receiving visible activity changes used for assistant usage.

Enums

Name	Description
AlwaysOnHotwordDetectorAudioCapability	Specifies audio processing capabilities supported by the hotword detector.
HotwordDetectorState	Enumerates values returned by several methods of HotwordDetectorState and taken as a parameter of the F:Android.Service.Voice.AlwaysOnHotwordDetector+Callback.OnAvailabilityChanged member.
ModelType	Identifies a parameter of a loaded hotword sound model.
RecognitionFlag	Enumerates values returned by the AllowMultipleTriggers, CaptureTriggerAudio, and None members and taken as a parameter of the F:Android.Service.Voice.AlwaysOnHotwordDetector.StartRecognition member.
RecognitionMode	Enumerates values returned by the UserIdentification, and VoiceTrigger members.
ShowFlags	Specifies requested assist data and the source of a voice interaction session's show request.
ToucheableInsetsType	Specifies which area of a voice interaction session window receives touch events.

Remarks

A voice interaction service starts sessions that interact with the user and handle requests from applications. Sessions can display a user interface, receive assist data, and track visible activities. Hotword detectors report keyphrase availability and recognition events.

These APIs are implemented in the Android voice interaction sources. The .NET binding also provides enum values, string projections of Java character sequences, and nested interface-constant classes.