本文介绍了在Android中使用VoiceInteractionService的HotwordDetector的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在使用自定义命令创建语音识别服务,例如"Ok Google".为此,我使用了VoiceInteractionService
,并且引用了此处.另外,我在onAvailabilityChanged
中遇到了STATE_HARDWARE_UNAVAILABLE
错误.
I am creating the voice recognition service like "Ok Google" with custom command. For this I have used the VoiceInteractionService
and I refered the code from here. Also, I am getting the STATE_HARDWARE_UNAVAILABLE
error in onAvailabilityChanged
.
public class VoiceCommandService extends VoiceInteractionService {
private static final String TAG = "AlwaysOnHotwordDetector";
Locale locale = new Locale("en-US");
protected SpeechRecognizer mSpeechRecognizer;
protected Intent mSpeechRecognizerIntent;
public final Callback mHotwordCallback = new Callback() {
@Override
public void onAvailabilityChanged(int status) {
Log.i(TAG, "onAvailabilityChanged(" + status + ")");
hotwordAvailabilityChangeHelper(status);
}
@Override
public void onDetected(EventPayload eventPayload) {
Log.i(TAG, "onDetected");
}
@Override
public void onError() {
Log.i(TAG, "onError");
}
@Override
public void onRecognitionPaused() {
Log.i(TAG, "onRecognitionPaused");
}
@Override
public void onRecognitionResumed() {
Log.i(TAG, "onRecognitionResumed");
}
};
private AlwaysOnHotwordDetector mHotwordDetector;
@Override
public void onCreate(){
Log.d(TAG, "Entered on create");
super.onCreate();
}
@Override
public void onReady() {
super.onReady();
Log.i(TAG, "Creating " + this);
mHotwordDetector = createAlwaysOnHotwordDetector(
"Hello", Locale.forLanguageTag("en-US"), mHotwordCallback);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Bundle args = new Bundle();
args.putParcelable("intent", new Intent(this, MainActivity.class));
showSession(args, 0);
stopSelf(startId);
return START_NOT_STICKY;
}
private void hotwordAvailabilityChangeHelper(int availability) {
Log.i(TAG, "Hotword availability = " + availability);
switch (availability) {
case AlwaysOnHotwordDetector.STATE_HARDWARE_UNAVAILABLE:
Log.i(TAG, "STATE_HARDWARE_UNAVAILABLE");
break;
case AlwaysOnHotwordDetector.STATE_KEYPHRASE_UNSUPPORTED:
Log.i(TAG, "STATE_KEYPHRASE_UNSUPPORTED");
break;
case AlwaysOnHotwordDetector.STATE_KEYPHRASE_UNENROLLED:
Log.i(TAG, "STATE_KEYPHRASE_UNENROLLED");
Intent enroll = mHotwordDetector.createEnrollIntent();
Log.i(TAG, "Need to enroll with " + enroll);
break;
case AlwaysOnHotwordDetector.STATE_KEYPHRASE_ENROLLED:
Log.i(TAG, "STATE_KEYPHRASE_ENROLLED - starting recognition");
if (mHotwordDetector.startRecognition(0)) {
Log.i(TAG, "startRecognition succeeded");
} else {
Log.i(TAG, "startRecognition failed");
}
break;
}
}}
推荐答案
VoiceInteractionService
在AndroidManifests
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