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# android.service.voice

## Interfaces

VoiceInteractionSession.VisibleActivityCallback | Callback interface for receiving visible activity changes used for assistant usage.

## Classes

VisibleActivityInfo | The class is used to represent a visible activity information.
VoiceInteractionService | Top-level service of the current global voice interactor, which is providing support for hotwording, the back-end of a `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 `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 `VoiceInteractor.CommandRequest`.
VoiceInteractionSession.CompleteVoiceRequest | A request to simply inform the user that the voice operation has completed, as per `VoiceInteractor.CompleteVoiceRequest`.
VoiceInteractionSession.ConfirmationRequest | A request for confirmation from the user of an operation, as per `VoiceInteractor.ConfirmationRequest`.
VoiceInteractionSession.Insets | Information about where interesting parts of the input method UI appear.
VoiceInteractionSession.PickOptionRequest | A request for the user to pick from a set of option, as per `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`.

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