1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.test.voiceinteraction; 18 19 import android.content.ComponentName; 20 import android.content.Intent; 21 import android.os.Bundle; 22 import android.service.voice.AlwaysOnHotwordDetector; 23 import android.service.voice.AlwaysOnHotwordDetector.Callback; 24 import android.service.voice.AlwaysOnHotwordDetector.EventPayload; 25 import android.service.voice.VoiceInteractionService; 26 import android.service.voice.VoiceInteractionSession; 27 import android.util.Log; 28 29 import java.util.Arrays; 30 import java.util.Locale; 31 32 public class MainInteractionService extends VoiceInteractionService { 33 static final String TAG = "MainInteractionService"; 34 35 private final Callback mHotwordCallback = new Callback() { 36 @Override 37 public void onAvailabilityChanged(int status) { 38 Log.i(TAG, "onAvailabilityChanged(" + status + ")"); 39 hotwordAvailabilityChangeHelper(status); 40 } 41 42 @Override 43 public void onDetected(EventPayload eventPayload) { 44 Log.i(TAG, "onDetected"); 45 } 46 47 @Override 48 public void onError() { 49 Log.i(TAG, "onError"); 50 } 51 52 @Override 53 public void onRecognitionPaused() { 54 Log.i(TAG, "onRecognitionPaused"); 55 } 56 57 @Override 58 public void onRecognitionResumed() { 59 Log.i(TAG, "onRecognitionResumed"); 60 } 61 }; 62 63 private AlwaysOnHotwordDetector mHotwordDetector; 64 65 @Override 66 public void onReady() { 67 super.onReady(); 68 Log.i(TAG, "Creating " + this); 69 Log.i(TAG, "Keyphrase enrollment error? " + getKeyphraseEnrollmentInfo().getParseError()); 70 Log.i(TAG, "Keyphrase enrollment meta-data: " 71 + Arrays.toString(getKeyphraseEnrollmentInfo().listKeyphraseMetadata())); 72 73 mHotwordDetector = createAlwaysOnHotwordDetector( 74 "Hello There", Locale.forLanguageTag("en-US"), mHotwordCallback); 75 } 76 77 private void hotwordAvailabilityChangeHelper(int availability) { 78 Log.i(TAG, "Hotword availability = " + availability); 79 switch (availability) { 80 case AlwaysOnHotwordDetector.STATE_HARDWARE_UNAVAILABLE: 81 Log.i(TAG, "STATE_HARDWARE_UNAVAILABLE"); 82 break; 83 case AlwaysOnHotwordDetector.STATE_KEYPHRASE_UNSUPPORTED: 84 Log.i(TAG, "STATE_KEYPHRASE_UNSUPPORTED"); 85 break; 86 case AlwaysOnHotwordDetector.STATE_KEYPHRASE_UNENROLLED: 87 Log.i(TAG, "STATE_KEYPHRASE_UNENROLLED"); 88 Intent enroll = mHotwordDetector.createEnrollIntent(); 89 Log.i(TAG, "Need to enroll with " + enroll); 90 break; 91 case AlwaysOnHotwordDetector.STATE_KEYPHRASE_ENROLLED: 92 Log.i(TAG, "STATE_KEYPHRASE_ENROLLED - starting recognition"); 93 if (mHotwordDetector.startRecognition( 94 AlwaysOnHotwordDetector.RECOGNITION_FLAG_NONE)) { 95 Log.i(TAG, "startRecognition succeeded"); 96 } else { 97 Log.i(TAG, "startRecognition failed"); 98 } 99 break; 100 } 101 } 102 } 103
