| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.example.android.voicerecognitionservice; |
| |
| import java.util.ArrayList; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.SharedPreferences; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.speech.SpeechRecognizer; |
| import android.speech.RecognitionService; |
| |
| /** |
| * A sample implementation of a {@link RecognitionService}. This very simple implementation does |
| * no actual voice recognition. It just immediately returns fake recognition results. |
| * Depending on the setting chosen in {@link VoiceRecognitionSettings}, it either returns a |
| * list of letters ("a", "b", "c"), or a list of numbers ("1", "2", "3"). |
| */ |
| public class VoiceRecognitionService extends RecognitionService { |
| |
| @Override |
| protected void onCancel(Callback listener) { |
| // A real recognizer would do something to shut down recognition here. |
| } |
| |
| @Override |
| protected void onStartListening(Intent recognizerIntent, Callback listener) { |
| // A real recognizer would probably utilize a lot of the other listener callback |
| // methods. But we'll just skip all that and pretend we've got a result. |
| ArrayList<String> results = new ArrayList<String>(); |
| |
| SharedPreferences prefs = getSharedPreferences( |
| VoiceRecognitionSettings.SHARED_PREFERENCES_NAME, |
| Context.MODE_PRIVATE); |
| |
| String resultType = prefs.getString( |
| VoiceRecognitionSettings.PREF_KEY_RESULTS_TYPE, |
| String.valueOf(VoiceRecognitionSettings.RESULT_TYPE_LETTERS)); |
| int resultTypeInt = Integer.parseInt(resultType); |
| |
| if (resultTypeInt == VoiceRecognitionSettings.RESULT_TYPE_LETTERS) { |
| results.add("a"); |
| results.add("b"); |
| results.add("c"); |
| } else if (resultTypeInt == VoiceRecognitionSettings.RESULT_TYPE_NUMBERS) { |
| results.add("1"); |
| results.add("2"); |
| results.add("3"); |
| } |
| |
| Bundle bundle = new Bundle(); |
| bundle.putStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION, results); |
| |
| try { |
| listener.results(bundle); |
| } catch (RemoteException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| protected void onStopListening(Callback listener) { |
| // Not implemented - in this sample we assume recognition would be endpointed |
| // automatically, though certain applications may wish to expose an affordance |
| // for stopping recording manually. |
| } |
| |
| } |