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Merge "SoundTrigger: update API"

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This commit is contained in:
Eric Laurent
2014-07-08 19:19:19 +00:00
committed by Android (Google) Code Review
parent 24b45fee5d 013f66b92d
commit 66c6747179
4 changed files with 227 additions and 54 deletions
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76
core/java/android/hardware/soundtrigger/SoundTrigger.java
View File

@@ -150,15 +150,16 @@ public class SoundTrigger {
/** Key phrase text */
public final String text;
/** Number of users this key phrase has been trained for */
public final int numUsers;
/** Users this key phrase has been trained for. countains sound trigger specific user IDs
* derived from system user IDs {@link android.os.UserHandle#getIdentifier()}. */
public final int[] users;
public Keyphrase(int id, int recognitionModes, String locale, String text, int numUsers) {
public Keyphrase(int id, int recognitionModes, String locale, String text, int[] users) {
this.id = id;
this.recognitionModes = recognitionModes;
this.locale = locale;
this.text = text;
this.numUsers = numUsers;
this.users = users;
}
}
@@ -215,36 +216,86 @@ public class SoundTrigger {
/** Delay in ms between end of model detection and start of audio available for capture.
* A negative value is possible (e.g. if keyphrase is also available for capture) */
public final int captureDelayMs;
/** Duration in ms of audio captured before the start of the trigger. 0 if none. */
public final int capturePreambleMs;
/** Opaque data for use by system applications who know about voice engine internals,
* typically during enrollment. */
public final byte[] data;
RecognitionEvent(int status, int soundModelHandle, boolean captureAvailable,
int captureSession, int captureDelayMs, byte[] data) {
int captureSession, int captureDelayMs, int capturePreambleMs, byte[] data) {
this.status = status;
this.soundModelHandle = soundModelHandle;
this.captureAvailable = captureAvailable;
this.captureSession = captureSession;
this.captureDelayMs = captureDelayMs;
this.capturePreambleMs = capturePreambleMs;
this.data = data;
}
}
/**
* A RecognitionConfig is provided to
* {@link SoundTriggerModule#startRecognition(int, RecognitionConfig)} to configure the
* recognition request.
*/
public static class RecognitionConfig {
/** True if the DSP should capture the trigger sound and make it available for further
* capture. */
public final boolean captureRequested;
/** List of all keyphrases in the sound model for which recognition should be performed with
* options for each keyphrase. */
public final KeyphraseRecognitionExtra keyphrases[];
/** Opaque data for use by system applications who know about voice engine internals,
* typically during enrollment. */
public final byte[] data;
public RecognitionConfig(boolean captureRequested,
KeyphraseRecognitionExtra keyphrases[], byte[] data) {
this.captureRequested = captureRequested;
this.keyphrases = keyphrases;
this.data = data;
}
}
/**
* Confidence level for users defined in a keyphrase.
* - The confidence level is expressed in percent (0% -100%).
* When used in a {@link KeyphraseRecognitionEvent} it indicates the detected confidence level
* When used in a {@link RecognitionConfig} it indicates the minimum confidence level that
* should trigger a recognition.
* - The user ID is derived from the system ID {@link android.os.UserHandle#getIdentifier()}.
*/
public static class ConfidenceLevel {
public final int userId;
public final int confidenceLevel;
public ConfidenceLevel(int userId, int confidenceLevel) {
this.userId = userId;
this.confidenceLevel = confidenceLevel;
}
}
/**
* Additional data conveyed by a {@link KeyphraseRecognitionEvent}
* for a key phrase detection.
*/
public static class KeyphraseRecognitionExtra {
/** Confidence level for each user defined in the key phrase in the same order as
* users in the key phrase. The confidence level is expressed in percentage (0% -100%) */
public final int[] confidenceLevels;
/** The keyphrse ID */
public final int id;
/** Recognition modes matched for this event */
public final int recognitionModes;
KeyphraseRecognitionExtra(int[] confidenceLevels, int recognitionModes) {
this.confidenceLevels = confidenceLevels;
/** Confidence levels for all users recognized (KeyphraseRecognitionEvent) or to
* be recognized (RecognitionConfig) */
public final ConfidenceLevel[] confidenceLevels;
public KeyphraseRecognitionExtra(int id, int recognitionModes,
ConfidenceLevel[] confidenceLevels) {
this.id = id;
this.recognitionModes = recognitionModes;
this.confidenceLevels = confidenceLevels;
}
}
@@ -259,9 +310,10 @@ public class SoundTrigger {
public final boolean keyphraseInCapture;
KeyphraseRecognitionEvent(int status, int soundModelHandle, boolean captureAvailable,
int captureSession, int captureDelayMs, byte[] data,
int captureSession, int captureDelayMs, int capturePreambleMs, byte[] data,
boolean keyphraseInCapture, KeyphraseRecognitionExtra[] keyphraseExtras) {
super(status, soundModelHandle, captureAvailable, captureSession, captureDelayMs, data);
super(status, soundModelHandle, captureAvailable, captureSession, captureDelayMs,
capturePreambleMs, data);
this.keyphraseInCapture = keyphraseInCapture;
this.keyphraseExtras = keyphraseExtras;
}

5
core/java/android/hardware/soundtrigger/SoundTriggerModule.java
View File

@@ -94,7 +94,8 @@ public class SoundTriggerModule {
* Recognition must be restarted after each callback (success or failure) received on
* the {@link SoundTrigger.StatusListener}.
* @param soundModelHandle The sound model handle to start listening to
* @param data Opaque data for use by the implementation for this recognition
* @param config contains configuration information for this recognition request:
* recognition mode, keyphrases, users, minimum confidence levels...
* @return - {@link SoundTrigger#STATUS_OK} in case of success
* - {@link SoundTrigger#STATUS_ERROR} in case of unspecified error
* - {@link SoundTrigger#STATUS_PERMISSION_DENIED} if the caller does not have
@@ -105,7 +106,7 @@ public class SoundTriggerModule {
* service fails
* - {@link SoundTrigger#STATUS_INVALID_OPERATION} if the call is out of sequence
*/
public native int startRecognition(int soundModelHandle, byte[] data);
public native int startRecognition(int soundModelHandle, SoundTrigger.RecognitionConfig config);
/**
* Stop listening to all key phrases in a {@link SoundTrigger.SoundModel}

192
core/jni/android_hardware_SoundTrigger.cpp
View File

@@ -74,7 +74,7 @@ static struct {
jfieldID recognitionModes;
jfieldID locale;
jfieldID text;
jfieldID numUsers;
jfieldID users;
} gKeyphraseFields;
static const char* const kKeyphraseSoundModelClassPathName =
@@ -84,6 +84,14 @@ static struct {
jfieldID keyphrases;
} gKeyphraseSoundModelFields;
static const char* const kRecognitionConfigClassPathName =
"android/hardware/soundtrigger/SoundTrigger$RecognitionConfig";
static jclass gRecognitionConfigClass;
static struct {
jfieldID captureRequested;
jfieldID keyphrases;
jfieldID data;
} gRecognitionConfigFields;
static const char* const kRecognitionEventClassPathName =
"android/hardware/soundtrigger/SoundTrigger$RecognitionEvent";
@@ -99,6 +107,20 @@ static const char* const kKeyphraseRecognitionExtraClassPathName =
"android/hardware/soundtrigger/SoundTrigger$KeyphraseRecognitionExtra";
static jclass gKeyphraseRecognitionExtraClass;
static jmethodID gKeyphraseRecognitionExtraCstor;
static struct {
jfieldID id;
jfieldID recognitionModes;
jfieldID confidenceLevels;
} gKeyphraseRecognitionExtraFields;
static const char* const kConfidenceLevelClassPathName =
"android/hardware/soundtrigger/SoundTrigger$ConfidenceLevel";
static jclass gConfidenceLevelClass;
static jmethodID gConfidenceLevelCstor;
static struct {
jfieldID userId;
jfieldID confidenceLevel;
} gConfidenceLevelFields;
static Mutex gLock;
@@ -183,34 +205,45 @@ void JNISoundTriggerCallback::onRecognitionEvent(struct sound_trigger_recognitio
}
for (size_t i = 0; i < phraseEvent->num_phrases; i++) {
jintArray jConfidenceLevels = env->NewIntArray(phraseEvent->phrase_extras[i].num_users);
jobjectArray jConfidenceLevels = env->NewObjectArray(
phraseEvent->phrase_extras[i].num_levels,
gConfidenceLevelClass, NULL);
if (jConfidenceLevels == NULL) {
return;
}
jint *nConfidenceLevels = env->GetIntArrayElements(jConfidenceLevels, NULL);
memcpy(nConfidenceLevels,
phraseEvent->phrase_extras[i].confidence_levels,
phraseEvent->phrase_extras[i].num_users * sizeof(int));
env->ReleaseIntArrayElements(jConfidenceLevels, nConfidenceLevels, 0);
for (size_t j = 0; j < phraseEvent->phrase_extras[i].num_levels; j++) {
jobject jConfidenceLevel = env->NewObject(gConfidenceLevelClass,
gConfidenceLevelCstor,
phraseEvent->phrase_extras[i].levels[j].user_id,
phraseEvent->phrase_extras[i].levels[j].level);
env->SetObjectArrayElement(jConfidenceLevels, j, jConfidenceLevel);
env->DeleteLocalRef(jConfidenceLevel);
}
jobject jNewExtra = env->NewObject(gKeyphraseRecognitionExtraClass,
gKeyphraseRecognitionExtraCstor,
jConfidenceLevels,
phraseEvent->phrase_extras[i].recognition_modes);
phraseEvent->phrase_extras[i].id,
phraseEvent->phrase_extras[i].recognition_modes,
jConfidenceLevels);
if (jNewExtra == NULL) {
return;
}
env->SetObjectArrayElement(jExtras, i, jNewExtra);
env->DeleteLocalRef(jNewExtra);
env->DeleteLocalRef(jConfidenceLevels);
}
jEvent = env->NewObject(gKeyphraseRecognitionEventClass, gKeyphraseRecognitionEventCstor,
event->status, event->model, event->capture_available,
event->capture_session, event->capture_delay_ms, jData,
event->capture_session, event->capture_delay_ms,
event->capture_preamble_ms, jData,
phraseEvent->key_phrase_in_capture, jExtras);
} else {
jEvent = env->NewObject(gRecognitionEventClass, gRecognitionEventCstor,
event->status, event->model, event->capture_available,
event->capture_session, event->capture_delay_ms, jData);
event->capture_session, event->capture_delay_ms,
event->capture_preamble_ms, jData);
}
@@ -381,7 +414,7 @@ android_hardware_SoundTrigger_loadSoundModel(JNIEnv *env, jobject thiz,
jobject jSoundModel, jintArray jHandle)
{
jint status = SOUNDTRIGGER_STATUS_OK;
char *nData = NULL;
jbyte *nData = NULL;
struct sound_trigger_sound_model *nSoundModel;
jbyteArray jData;
sp<MemoryDealer> memoryDealer;
@@ -437,7 +470,7 @@ android_hardware_SoundTrigger_loadSoundModel(JNIEnv *env, jobject thiz,
}
size = env->GetArrayLength(jData);
nData = (char *)env->GetByteArrayElements(jData, NULL);
nData = env->GetByteArrayElements(jData, NULL);
if (jData == NULL) {
status = SOUNDTRIGGER_STATUS_ERROR;
goto exit;
@@ -481,8 +514,16 @@ android_hardware_SoundTrigger_loadSoundModel(JNIEnv *env, jobject thiz,
env->GetIntField(jPhrase,gKeyphraseFields.id);
phraseModel->phrases[i].recognition_mode =
env->GetIntField(jPhrase,gKeyphraseFields.recognitionModes);
phraseModel->phrases[i].num_users =
env->GetIntField(jPhrase, gKeyphraseFields.numUsers);
jintArray jUsers = (jintArray)env->GetObjectField(jPhrase, gKeyphraseFields.users);
phraseModel->phrases[i].num_users = env->GetArrayLength(jUsers);
jint *nUsers = env->GetIntArrayElements(jUsers, NULL);
memcpy(phraseModel->phrases[i].users,
nUsers,
phraseModel->phrases[i].num_users * sizeof(int));
env->ReleaseIntArrayElements(jUsers, nUsers, 0);
env->DeleteLocalRef(jUsers);
jstring jLocale = (jstring)env->GetObjectField(jPhrase, gKeyphraseFields.locale);
const char *nLocale = env->GetStringUTFChars(jLocale, NULL);
strncpy(phraseModel->phrases[i].locale,
@@ -500,6 +541,7 @@ android_hardware_SoundTrigger_loadSoundModel(JNIEnv *env, jobject thiz,
env->DeleteLocalRef(jText);
ALOGV("loadSoundModel phrases %d text %s locale %s",
i, phraseModel->phrases[i].text, phraseModel->phrases[i].locale);
env->DeleteLocalRef(jPhrase);
}
env->DeleteLocalRef(jPhrases);
}
@@ -512,7 +554,7 @@ exit:
env->ReleaseIntArrayElements(jHandle, nHandle, NULL);
}
if (nData != NULL) {
env->ReleaseByteArrayElements(jData, (jbyte *)nData, NULL);
env->ReleaseByteArrayElements(jData, nData, NULL);
}
return status;
}
@@ -534,7 +576,7 @@ android_hardware_SoundTrigger_unloadSoundModel(JNIEnv *env, jobject thiz,
static jint
android_hardware_SoundTrigger_startRecognition(JNIEnv *env, jobject thiz,
jint jHandle, jbyteArray jData)
jint jHandle, jobject jConfig)
{
jint status = SOUNDTRIGGER_STATUS_OK;
ALOGV("startRecognition");
@@ -542,30 +584,83 @@ android_hardware_SoundTrigger_startRecognition(JNIEnv *env, jobject thiz,
if (module == NULL) {
return SOUNDTRIGGER_STATUS_ERROR;
}
if (!env->IsInstanceOf(jConfig, gRecognitionConfigClass)) {
return SOUNDTRIGGER_STATUS_BAD_VALUE;
}
jbyteArray jData = (jbyteArray)env->GetObjectField(jConfig, gRecognitionConfigFields.data);
jsize dataSize = 0;
char *nData = NULL;
sp<IMemory> memory;
jbyte *nData = NULL;
if (jData != NULL) {
dataSize = env->GetArrayLength(jData);
if (dataSize == 0) {
return SOUNDTRIGGER_STATUS_BAD_VALUE;
}
nData = (char *)env->GetByteArrayElements(jData, NULL);
nData = env->GetByteArrayElements(jData, NULL);
if (nData == NULL) {
return SOUNDTRIGGER_STATUS_ERROR;
}
sp<MemoryDealer> memoryDealer =
new MemoryDealer(dataSize, "SoundTrigge-JNI::StartRecognition");
if (memoryDealer == 0) {
return SOUNDTRIGGER_STATUS_ERROR;
}
memory = memoryDealer->allocate(dataSize);
if (memory == 0 || memory->pointer() == NULL) {
return SOUNDTRIGGER_STATUS_ERROR;
}
memcpy(memory->pointer(), nData, dataSize);
}
size_t totalSize = sizeof(struct sound_trigger_recognition_config) + dataSize;
sp<MemoryDealer> memoryDealer =
new MemoryDealer(totalSize, "SoundTrigge-JNI::StartRecognition");
if (memoryDealer == 0) {
return SOUNDTRIGGER_STATUS_ERROR;
}
sp<IMemory> memory = memoryDealer->allocate(totalSize);
if (memory == 0 || memory->pointer() == NULL) {
return SOUNDTRIGGER_STATUS_ERROR;
}
if (dataSize != 0) {
memcpy((char *)memory->pointer() + sizeof(struct sound_trigger_recognition_config),
nData,
dataSize);
env->ReleaseByteArrayElements(jData, nData, 0);
}
env->DeleteLocalRef(jData);
struct sound_trigger_recognition_config *config =
(struct sound_trigger_recognition_config *)memory->pointer();
config->data_size = dataSize;
config->data_offset = sizeof(struct sound_trigger_recognition_config);
config->capture_requested = env->GetIntField(jConfig,
gRecognitionConfigFields.captureRequested);
config->num_phrases = 0;
jobjectArray jPhrases =
(jobjectArray)env->GetObjectField(jConfig, gRecognitionConfigFields.keyphrases);
if (jPhrases != NULL) {
config->num_phrases = env->GetArrayLength(jPhrases);
}
ALOGV("startRecognition num phrases %d", config->num_phrases);
for (size_t i = 0; i < config->num_phrases; i++) {
jobject jPhrase = env->GetObjectArrayElement(jPhrases, i);
config->phrases[i].id = env->GetIntField(jPhrase,
gKeyphraseRecognitionExtraFields.id);
config->phrases[i].recognition_modes = env->GetIntField(jPhrase,
gKeyphraseRecognitionExtraFields.recognitionModes);
config->phrases[i].num_levels = 0;
jobjectArray jConfidenceLevels = (jobjectArray)env->GetObjectField(jPhrase,
gKeyphraseRecognitionExtraFields.confidenceLevels);
if (jConfidenceLevels != NULL) {
config->phrases[i].num_levels = env->GetArrayLength(jConfidenceLevels);
}
ALOGV("startRecognition phrase %d num_levels %d", i, config->phrases[i].num_levels);
for (size_t j = 0; j < config->phrases[i].num_levels; j++) {
jobject jConfidenceLevel = env->GetObjectArrayElement(jConfidenceLevels, j);
config->phrases[i].levels[j].user_id = env->GetIntField(jConfidenceLevel,
gConfidenceLevelFields.userId);
config->phrases[i].levels[j].level = env->GetIntField(jConfidenceLevel,
gConfidenceLevelFields.confidenceLevel);
env->DeleteLocalRef(jConfidenceLevel);
}
ALOGV("startRecognition phrases %d", i);
env->DeleteLocalRef(jConfidenceLevels);
env->DeleteLocalRef(jPhrase);
}
env->DeleteLocalRef(jPhrases);
status = module->startRecognition(jHandle, memory);
return status;
}
@@ -608,7 +703,7 @@ static JNINativeMethod gModuleMethods[] = {
"(I)I",
(void *)android_hardware_SoundTrigger_unloadSoundModel},
{"startRecognition",
"(I[B)I",
"(ILandroid/hardware/soundtrigger/SoundTrigger$RecognitionConfig;)I",
(void *)android_hardware_SoundTrigger_startRecognition},
{"stopRecognition",
"(I)I",
@@ -652,7 +747,7 @@ int register_android_hardware_SoundTrigger(JNIEnv *env)
gKeyphraseFields.recognitionModes = env->GetFieldID(keyphraseClass, "recognitionModes", "I");
gKeyphraseFields.locale = env->GetFieldID(keyphraseClass, "locale", "Ljava/lang/String;");
gKeyphraseFields.text = env->GetFieldID(keyphraseClass, "text", "Ljava/lang/String;");
gKeyphraseFields.numUsers = env->GetFieldID(keyphraseClass, "numUsers", "I");
gKeyphraseFields.users = env->GetFieldID(keyphraseClass, "users", "[I");
jclass keyphraseSoundModelClass = env->FindClass(kKeyphraseSoundModelClassPathName);
gKeyphraseSoundModelClass = (jclass) env->NewGlobalRef(keyphraseSoundModelClass);
@@ -664,18 +759,42 @@ int register_android_hardware_SoundTrigger(JNIEnv *env)
jclass recognitionEventClass = env->FindClass(kRecognitionEventClassPathName);
gRecognitionEventClass = (jclass) env->NewGlobalRef(recognitionEventClass);
gRecognitionEventCstor = env->GetMethodID(recognitionEventClass, "<init>",
"(IIZII[B)V");
"(IIZIII[B)V");
jclass keyphraseRecognitionEventClass = env->FindClass(kKeyphraseRecognitionEventClassPathName);
gKeyphraseRecognitionEventClass = (jclass) env->NewGlobalRef(keyphraseRecognitionEventClass);
gKeyphraseRecognitionEventCstor = env->GetMethodID(keyphraseRecognitionEventClass, "<init>",
"(IIZII[BZ[Landroid/hardware/soundtrigger/SoundTrigger$KeyphraseRecognitionExtra;)V");
"(IIZIII[BZ[Landroid/hardware/soundtrigger/SoundTrigger$KeyphraseRecognitionExtra;)V");
jclass keyRecognitionConfigClass = env->FindClass(kRecognitionConfigClassPathName);
gRecognitionConfigClass = (jclass) env->NewGlobalRef(keyRecognitionConfigClass);
gRecognitionConfigFields.captureRequested = env->GetFieldID(keyRecognitionConfigClass,
"captureRequested",
"Z");
gRecognitionConfigFields.keyphrases = env->GetFieldID(keyRecognitionConfigClass,
"keyphrases",
"[Landroid/hardware/soundtrigger/SoundTrigger$KeyphraseRecognitionExtra;");
gRecognitionConfigFields.data = env->GetFieldID(keyRecognitionConfigClass,
"data",
"[B");
jclass keyphraseRecognitionExtraClass = env->FindClass(kKeyphraseRecognitionExtraClassPathName);
gKeyphraseRecognitionExtraClass = (jclass) env->NewGlobalRef(keyphraseRecognitionExtraClass);
gKeyphraseRecognitionExtraCstor = env->GetMethodID(keyphraseRecognitionExtraClass, "<init>",
"([II)V");
"(II[Landroid/hardware/soundtrigger/SoundTrigger$ConfidenceLevel;)V");
gKeyphraseRecognitionExtraFields.id = env->GetFieldID(gKeyphraseRecognitionExtraClass, "id", "I");
gKeyphraseRecognitionExtraFields.recognitionModes = env->GetFieldID(gKeyphraseRecognitionExtraClass, "recognitionModes", "I");
gKeyphraseRecognitionExtraFields.confidenceLevels = env->GetFieldID(gKeyphraseRecognitionExtraClass,
"confidenceLevels",
"[Landroid/hardware/soundtrigger/SoundTrigger$ConfidenceLevel;");
jclass confidenceLevelClass = env->FindClass(kConfidenceLevelClassPathName);
gConfidenceLevelClass = (jclass) env->NewGlobalRef(confidenceLevelClass);
gConfidenceLevelCstor = env->GetMethodID(confidenceLevelClass, "<init>", "(II)V");
gConfidenceLevelFields.userId = env->GetFieldID(confidenceLevelClass, "userId", "I");
gConfidenceLevelFields.confidenceLevel = env->GetFieldID(confidenceLevelClass,
"confidenceLevel", "I");
int status = AndroidRuntime::registerNativeMethods(env,
kSoundTriggerClassPathName, gMethods, NELEM(gMethods));
@@ -685,5 +804,6 @@ int register_android_hardware_SoundTrigger(JNIEnv *env)
kModuleClassPathName, gModuleMethods, NELEM(gModuleMethods));
}
return status;
}

8
services/voiceinteraction/java/com/android/server/voiceinteraction/DatabaseHelper.java
View File

@@ -46,7 +46,7 @@ public class DatabaseHelper extends SQLiteOpenHelper {
public static final String KEY_RECOGNITION_MODES = "modes";
public static final String KEY_LOCALE = "locale";
public static final String KEY_HINT_TEXT = "hint_text";
public static final String KEY_NUM_USERS = "num_users";
public static final String KEY_USERS = "users";
public static final String KEY_SOUND_MODEL_ID = "sound_model_id";
}
@@ -62,7 +62,7 @@ public class DatabaseHelper extends SQLiteOpenHelper {
+ KeyphraseContract.TABLE + "("
+ KeyphraseContract.KEY_ID + " INTEGER PRIMARY KEY,"
+ KeyphraseContract.KEY_RECOGNITION_MODES + " INTEGER,"
+ KeyphraseContract.KEY_NUM_USERS + " INTEGER,"
+ KeyphraseContract.KEY_USERS + " INTEGER,"
+ KeyphraseContract.KEY_SOUND_MODEL_ID + " TEXT,"
+ KeyphraseContract.KEY_LOCALE + " TEXT,"
+ KeyphraseContract.KEY_HINT_TEXT + " TEXT" + ")";
@@ -167,11 +167,11 @@ public class DatabaseHelper extends SQLiteOpenHelper {
do {
int id = c.getInt(c.getColumnIndex(KeyphraseContract.KEY_ID));
int modes = c.getInt(c.getColumnIndex(KeyphraseContract.KEY_RECOGNITION_MODES));
int numUsers = c.getInt(c.getColumnIndex(KeyphraseContract.KEY_NUM_USERS));
int[] users = {c.getInt(c.getColumnIndex(KeyphraseContract.KEY_USERS))};
String locale = c.getString(c.getColumnIndex(KeyphraseContract.KEY_LOCALE));
String hintText = c.getString(c.getColumnIndex(KeyphraseContract.KEY_HINT_TEXT));
keyphrases.add(new Keyphrase(id, modes, locale, hintText, numUsers));
keyphrases.add(new Keyphrase(id, modes, locale, hintText, users));
} while (c.moveToNext());
}
Keyphrase[] keyphraseArr = new Keyphrase[keyphrases.size()];