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Add the javadoc for HotwordDetectionService

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Bug: 180945857
Test: Build
Change-Id: I42bb01949ec019da80077eeaf96c63b2c94f70a5
This commit is contained in:
lpeter
2021-04-28 21:47:06 +08:00
parent f3040a456b
commit 8fbe605e1a
1 changed files with 14 additions and 2 deletions
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16
core/java/android/service/voice/HotwordDetectionService.java
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@@ -52,8 +52,20 @@ import java.util.Locale;
import java.util.function.IntConsumer;
/**
* Implemented by an application that wants to offer detection for hotword. The system will
* start the service after calling {@link VoiceInteractionService#setHotwordDetectionConfig}.
* Implemented by an application that wants to offer detection for hotword. The service can be used
* for both DSP and non-DSP detectors.
*
* The system will bind an application's {@link VoiceInteractionService} first. When {@link
* VoiceInteractionService#createHotwordDetector(PersistableBundle, SharedMemory,
* HotwordDetector.Callback)} or {@link VoiceInteractionService#createAlwaysOnHotwordDetector(
* String, Locale, PersistableBundle, SharedMemory, AlwaysOnHotwordDetector.Callback)} is called,
* the system will bind application's {@link HotwordDetectionService}. Either on a hardware
* trigger or on request from the {@link VoiceInteractionService}, the system calls into the
* {@link HotwordDetectionService} to request detection. The {@link HotwordDetectionService} then
* uses {@link Callback#onDetected(HotwordDetectedResult)} to inform the system that a relevant
* keyphrase was detected, or if applicable uses {@link Callback#onRejected(HotwordRejectedResult)}
* to inform the system that a keyphrase was not detected. The system then relays this result to
* the {@link VoiceInteractionService} through {@link HotwordDetector.Callback}.
*
* @hide
*/