1 /* 2 * Copyright (C) 2010 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.common.speech; 18 19 /** 20 * Utilities for voice recognition implementations. 21 * 22 * @see android.speech.RecognitionService 23 * @see android.speech.RecognizerIntent 24 */ 25 public class Recognition { 26 27 /** 28 * The key to the extra in the Bundle returned by 29 * android.speech.RecognizerIntent#ACTION_GET_LANGUAGE_DETAILS 30 * which is an ArrayList of CharSequences which are hints that can be shown to 31 * the user for voice actions currently supported by voice search for the user's current 32 * language preference for voice search (i.e., the one defined in the extra 33 * android.speech.RecognizerIntent#EXTRA_LANGUAGE_PREFERENCE). 34 * 35 * If this is paired with EXTRA_HINT_CONTEXT, should return a set of hints that are 36 * appropriate for the provided context. 37 * 38 * The CharSequences are SpannedStrings and will contain segments wrapped in 39 * <annotation action="true"></annotation>. This is to indicate the section of the text 40 * which represents the voice action, to be highlighted in the UI if so desired. 41 */ 42 public static final String EXTRA_HINT_STRINGS = "android.speech.extra.HINT_STRINGS"; 43 44 /** 45 * The key to an extra to be included in the request intent for 46 * android.speech.RecognizerIntent#ACTION_GET_LANGUAGE_DETAILS. 47 * Should be an int of one of the values defined below. If an 48 * unknown int value is provided, it should be ignored. 49 */ 50 public static final String EXTRA_HINT_CONTEXT = "android.speech.extra.HINT_CONTEXT"; 51 52 /** 53 * A set of values for EXTRA_HINT_CONTEXT. 54 */ 55 public static final int HINT_CONTEXT_UNKNOWN = 0; 56 public static final int HINT_CONTEXT_VOICE_SEARCH_HELP = 1; 57 public static final int HINT_CONTEXT_CAR_HOME = 2; 58 public static final int HINT_CONTEXT_LAUNCHER = 3; 59 60 private Recognition() { } // don't instantiate 61 } 62
