| /* |
| * Copyright (C) 2011 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.android.settings.tts; |
| |
| import android.support.v7.preference.ListPreference; |
| import android.app.AlertDialog; |
| import android.content.ActivityNotFoundException; |
| import android.content.ContentResolver; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.speech.tts.TextToSpeech; |
| import android.speech.tts.TextToSpeech.EngineInfo; |
| import android.speech.tts.TtsEngines; |
| import android.speech.tts.UtteranceProgressListener; |
| import android.support.v7.preference.Preference; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.util.Pair; |
| import java.util.Comparator; |
| import java.util.Collections; |
| |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.settings.R; |
| import com.android.settings.SettingsActivity; |
| import com.android.settings.SettingsPreferenceFragment; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.MissingResourceException; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| import static android.provider.Settings.Secure.TTS_DEFAULT_SYNTH; |
| import static android.provider.Settings.Secure.TTS_DEFAULT_PITCH; |
| |
| public class TextToSpeechSettings extends SettingsPreferenceFragment |
| implements Preference.OnPreferenceChangeListener, Preference.OnPreferenceClickListener { |
| |
| private static final String STATE_KEY_LOCALE_ENTRIES = "locale_entries"; |
| private static final String STATE_KEY_LOCALE_ENTRY_VALUES = "locale_entry_values"; |
| private static final String STATE_KEY_LOCALE_VALUE = "locale_value"; |
| |
| private static final String TAG = "TextToSpeechSettings"; |
| private static final boolean DBG = false; |
| |
| /** Preference key for the "play TTS example" preference. */ |
| private static final String KEY_PLAY_EXAMPLE = "tts_play_example";; |
| |
| /** Preference key for the TTS status field. */ |
| private static final String KEY_STATUS = "tts_status"; |
| |
| /** |
| * These look like birth years, but they aren't mine. I'm much younger than this. |
| */ |
| private static final int GET_SAMPLE_TEXT = 1983; |
| private static final int VOICE_DATA_INTEGRITY_CHECK = 1977; |
| |
| private Preference mPlayExample; |
| private Preference mEngineStatus; |
| |
| |
| private static final String KEY_ENGINE_LOCALE = "tts_default_lang"; |
| private static final String KEY_ENGINE_SETTINGS = "tts_engine_settings"; |
| private static final String KEY_INSTALL_DATA = "tts_install_data"; |
| |
| private int mSelectedLocaleIndex = -1; |
| |
| /** The currently selected engine. */ |
| private String mCurrentEngine; |
| |
| private TextToSpeech mTts = null; |
| private TtsEngines mEnginesHelper = null; |
| |
| private String mSampleText = null; |
| |
| private ListPreference mLocalePreference; |
| private Preference mEngineSettingsPreference; |
| private Preference mInstallVoicesPreference; |
| |
| /** |
| * Default locale used by selected TTS engine, null if not connected to any engine. |
| */ |
| private Locale mCurrentDefaultLocale; |
| |
| /** |
| * List of available locals of selected TTS engine, as returned by |
| * {@link TextToSpeech.Engine#ACTION_CHECK_TTS_DATA} activity. If empty, then activity |
| * was not yet called. |
| */ |
| private List<String> mAvailableStrLocals; |
| |
| /** |
| * The initialization listener used when we are initalizing the settings |
| * screen for the first time (as opposed to when a user changes his choice |
| * of engine). |
| */ |
| private final TextToSpeech.OnInitListener mInitListener = new TextToSpeech.OnInitListener() { |
| @Override |
| public void onInit(int status) { |
| onInitEngine(status); |
| } |
| }; |
| |
| @Override |
| public int getMetricsCategory() { |
| return MetricsEvent.TTS_TEXT_TO_SPEECH; |
| } |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| addPreferencesFromResource(R.xml.tts_settings); |
| |
| getActivity().setVolumeControlStream(TextToSpeech.Engine.DEFAULT_STREAM); |
| |
| mPlayExample = findPreference(KEY_PLAY_EXAMPLE); |
| mPlayExample.setOnPreferenceClickListener(this); |
| mPlayExample.setEnabled(false); |
| |
| mEnginesHelper = new TtsEngines(getActivity().getApplicationContext()); |
| |
| mLocalePreference = (ListPreference) findPreference(KEY_ENGINE_LOCALE); |
| mLocalePreference.setOnPreferenceChangeListener(this); |
| |
| if (savedInstanceState == null) { |
| mLocalePreference.setEnabled(false); |
| mLocalePreference.setEntries(new CharSequence[0]); |
| mLocalePreference.setEntryValues(new CharSequence[0]); |
| } else { |
| // Repopulate mLocalePreference with saved state. Will be updated later with |
| // up-to-date values when checkTtsData() calls back with results. |
| final CharSequence[] entries = |
| savedInstanceState.getCharSequenceArray(STATE_KEY_LOCALE_ENTRIES); |
| final CharSequence[] entryValues = |
| savedInstanceState.getCharSequenceArray(STATE_KEY_LOCALE_ENTRY_VALUES); |
| final CharSequence value = savedInstanceState.getCharSequence(STATE_KEY_LOCALE_VALUE); |
| |
| mLocalePreference.setEntries(entries); |
| mLocalePreference.setEntryValues(entryValues); |
| mLocalePreference.setValue(value != null ? value.toString() : null); |
| mLocalePreference.setEnabled(entries.length > 0); |
| } |
| |
| mEngineSettingsPreference = findPreference(KEY_ENGINE_SETTINGS); |
| mEngineSettingsPreference.setOnPreferenceClickListener(this); |
| mInstallVoicesPreference = findPreference(KEY_INSTALL_DATA); |
| mInstallVoicesPreference.setOnPreferenceClickListener(this); |
| mInstallVoicesPreference.setEnabled(false); |
| |
| mEngineStatus = findPreference(KEY_STATUS); |
| updateEngineStatus(R.string.tts_status_checking); |
| |
| mTts = new TextToSpeech(getActivity().getApplicationContext(), mInitListener); |
| |
| setTtsUtteranceProgressListener(); |
| initSettings(); |
| |
| // Prevent restarting the TTS connection on rotation |
| setRetainInstance(true); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| |
| if (mTts == null || mCurrentDefaultLocale == null) { |
| return; |
| } |
| if (!mTts.getDefaultEngine().equals(mTts.getCurrentEngine())) { |
| try { |
| mTts.shutdown(); |
| mTts = null; |
| } catch (Exception e) { |
| Log.e(TAG, "Error shutting down TTS engine" + e); |
| } |
| mTts = new TextToSpeech(getActivity().getApplicationContext(), mInitListener); |
| setTtsUtteranceProgressListener(); |
| initSettings(); |
| } else { |
| // Do set pitch correctly after it may have changed, and unlike speed, it doesn't change |
| // immediately. |
| final ContentResolver resolver = getContentResolver(); |
| mTts.setPitch(android.provider.Settings.Secure.getInt(resolver, TTS_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH)/100.0f); |
| } |
| |
| Locale ttsDefaultLocale = mTts.getDefaultLanguage(); |
| if (mCurrentDefaultLocale != null && !mCurrentDefaultLocale.equals(ttsDefaultLocale)) { |
| updateWidgetState(false); |
| checkDefaultLocale(); |
| } |
| } |
| |
| private void setTtsUtteranceProgressListener() { |
| if (mTts == null) { |
| return; |
| } |
| mTts.setOnUtteranceProgressListener(new UtteranceProgressListener() { |
| @Override |
| public void onStart(String utteranceId) {} |
| |
| @Override |
| public void onDone(String utteranceId) {} |
| |
| @Override |
| public void onError(String utteranceId) { |
| Log.e(TAG, "Error while trying to synthesize sample text"); |
| } |
| }); |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| if (mTts != null) { |
| mTts.shutdown(); |
| mTts = null; |
| } |
| } |
| |
| private void initSettings() { |
| final ContentResolver resolver = getContentResolver(); |
| |
| if (mTts != null) { |
| mCurrentEngine = mTts.getCurrentEngine(); |
| mTts.setPitch(android.provider.Settings.Secure.getInt(resolver, TTS_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH)/100.0f); |
| } |
| |
| SettingsActivity activity = null; |
| if (getActivity() instanceof SettingsActivity) { |
| activity = (SettingsActivity) getActivity(); |
| } else { |
| throw new IllegalStateException("TextToSpeechSettings used outside a " + |
| "Settings"); |
| } |
| |
| if (mCurrentEngine != null) { |
| EngineInfo info = mEnginesHelper.getEngineInfo(mCurrentEngine); |
| mEngineSettingsPreference.setSummary(info.label); |
| final Intent settingsIntent = mEnginesHelper.getSettingsIntent(info.name); |
| mEngineSettingsPreference.setIntent(settingsIntent); |
| if (settingsIntent == null) { |
| mEngineSettingsPreference.setEnabled(false); |
| } |
| |
| Preference mEnginePreference = findPreference("tts_engine_preference"); |
| mEnginePreference.setSummary(info.label); |
| } |
| |
| checkVoiceData(mCurrentEngine); |
| } |
| |
| /** |
| * Called when the TTS engine is initialized. |
| */ |
| public void onInitEngine(int status) { |
| if (status == TextToSpeech.SUCCESS) { |
| if (DBG) Log.d(TAG, "TTS engine for settings screen initialized."); |
| checkDefaultLocale(); |
| getActivity() |
| .runOnUiThread( |
| new Runnable() { |
| @Override |
| public void run() { |
| mLocalePreference.setEnabled(true); |
| } |
| }); |
| } else { |
| if (DBG) Log.d(TAG, "TTS engine for settings screen failed to initialize successfully."); |
| updateWidgetState(false); |
| } |
| } |
| |
| private void checkDefaultLocale() { |
| Locale defaultLocale = mTts.getDefaultLanguage(); |
| if (defaultLocale == null) { |
| Log.e(TAG, "Failed to get default language from engine " + mCurrentEngine); |
| updateWidgetState(false); |
| updateEngineStatus(R.string.tts_status_not_supported); |
| return; |
| } |
| |
| // ISO-3166 alpha 3 country codes are out of spec. If we won't normalize, |
| // we may end up with English (USA)and German (DEU). |
| final Locale oldDefaultLocale = mCurrentDefaultLocale; |
| mCurrentDefaultLocale = mEnginesHelper.parseLocaleString(defaultLocale.toString()); |
| if (!Objects.equals(oldDefaultLocale, mCurrentDefaultLocale)) { |
| mSampleText = null; |
| } |
| |
| int defaultAvailable = mTts.setLanguage(defaultLocale); |
| if (evaluateDefaultLocale() && mSampleText == null) { |
| getSampleText(); |
| } |
| } |
| |
| private boolean evaluateDefaultLocale() { |
| // Check if we are connected to the engine, and CHECK_VOICE_DATA returned list |
| // of available languages. |
| if (mCurrentDefaultLocale == null || mAvailableStrLocals == null) { |
| return false; |
| } |
| |
| boolean notInAvailableLangauges = true; |
| try { |
| // Check if language is listed in CheckVoices Action result as available voice. |
| String defaultLocaleStr = mCurrentDefaultLocale.getISO3Language(); |
| if (!TextUtils.isEmpty(mCurrentDefaultLocale.getISO3Country())) { |
| defaultLocaleStr += "-" + mCurrentDefaultLocale.getISO3Country(); |
| } |
| if (!TextUtils.isEmpty(mCurrentDefaultLocale.getVariant())) { |
| defaultLocaleStr += "-" + mCurrentDefaultLocale.getVariant(); |
| } |
| |
| for (String loc : mAvailableStrLocals) { |
| if (loc.equalsIgnoreCase(defaultLocaleStr)) { |
| notInAvailableLangauges = false; |
| break; |
| } |
| } |
| } catch (MissingResourceException e) { |
| if (DBG) Log.wtf(TAG, "MissingResourceException", e); |
| updateEngineStatus(R.string.tts_status_not_supported); |
| updateWidgetState(false); |
| return false; |
| } |
| |
| int defaultAvailable = mTts.setLanguage(mCurrentDefaultLocale); |
| if (defaultAvailable == TextToSpeech.LANG_NOT_SUPPORTED || |
| defaultAvailable == TextToSpeech.LANG_MISSING_DATA || |
| notInAvailableLangauges) { |
| if (DBG) Log.d(TAG, "Default locale for this TTS engine is not supported."); |
| updateEngineStatus(R.string.tts_status_not_supported); |
| updateWidgetState(false); |
| return false; |
| } else { |
| if (isNetworkRequiredForSynthesis()) { |
| updateEngineStatus(R.string.tts_status_requires_network); |
| } else { |
| updateEngineStatus(R.string.tts_status_ok); |
| } |
| updateWidgetState(true); |
| return true; |
| } |
| } |
| |
| /** |
| * Ask the current default engine to return a string of sample text to be |
| * spoken to the user. |
| */ |
| private void getSampleText() { |
| String currentEngine = mTts.getCurrentEngine(); |
| |
| if (TextUtils.isEmpty(currentEngine)) currentEngine = mTts.getDefaultEngine(); |
| |
| // TODO: This is currently a hidden private API. The intent extras |
| // and the intent action should be made public if we intend to make this |
| // a public API. We fall back to using a canned set of strings if this |
| // doesn't work. |
| Intent intent = new Intent(TextToSpeech.Engine.ACTION_GET_SAMPLE_TEXT); |
| |
| intent.putExtra("language", mCurrentDefaultLocale.getLanguage()); |
| intent.putExtra("country", mCurrentDefaultLocale.getCountry()); |
| intent.putExtra("variant", mCurrentDefaultLocale.getVariant()); |
| intent.setPackage(currentEngine); |
| |
| try { |
| if (DBG) Log.d(TAG, "Getting sample text: " + intent.toUri(0)); |
| startActivityForResult(intent, GET_SAMPLE_TEXT); |
| } catch (ActivityNotFoundException ex) { |
| Log.e(TAG, "Failed to get sample text, no activity found for " + intent + ")"); |
| } |
| } |
| |
| /** |
| * Called when voice data integrity check returns |
| */ |
| @Override |
| public void onActivityResult(int requestCode, int resultCode, Intent data) { |
| if (requestCode == GET_SAMPLE_TEXT) { |
| onSampleTextReceived(resultCode, data); |
| } else if (requestCode == VOICE_DATA_INTEGRITY_CHECK) { |
| onVoiceDataIntegrityCheckDone(data); |
| if (resultCode != TextToSpeech.Engine.CHECK_VOICE_DATA_FAIL) { |
| updateDefaultLocalePref(data); |
| } |
| } |
| } |
| |
| private void updateDefaultLocalePref(Intent data) { |
| final ArrayList<String> availableLangs = |
| data.getStringArrayListExtra(TextToSpeech.Engine.EXTRA_AVAILABLE_VOICES); |
| |
| final ArrayList<String> unavailableLangs = |
| data.getStringArrayListExtra(TextToSpeech.Engine.EXTRA_UNAVAILABLE_VOICES); |
| |
| if (availableLangs != null && unavailableLangs.size() > 0) { |
| mInstallVoicesPreference.setEnabled(true); |
| } else { |
| mInstallVoicesPreference.setEnabled(false); |
| } |
| |
| if (availableLangs == null || availableLangs.size() == 0) { |
| mLocalePreference.setEnabled(false); |
| return; |
| } |
| Locale currentLocale = null; |
| if (!mEnginesHelper.isLocaleSetToDefaultForEngine(mTts.getCurrentEngine())) { |
| currentLocale = mEnginesHelper.getLocalePrefForEngine(mTts.getCurrentEngine()); |
| } |
| |
| ArrayList<Pair<String, Locale>> entryPairs = |
| new ArrayList<Pair<String, Locale>>(availableLangs.size()); |
| for (int i = 0; i < availableLangs.size(); i++) { |
| Locale locale = mEnginesHelper.parseLocaleString(availableLangs.get(i)); |
| if (locale != null) { |
| entryPairs.add(new Pair<String, Locale>(locale.getDisplayName(), locale)); |
| } |
| } |
| |
| // Sort it |
| Collections.sort( |
| entryPairs, |
| new Comparator<Pair<String, Locale>>() { |
| @Override |
| public int compare(Pair<String, Locale> lhs, Pair<String, Locale> rhs) { |
| return lhs.first.compareToIgnoreCase(rhs.first); |
| } |
| }); |
| |
| // Get two arrays out of one of pairs |
| mSelectedLocaleIndex = 0; // Will point to the R.string.tts_lang_use_system value |
| CharSequence[] entries = new CharSequence[availableLangs.size() + 1]; |
| CharSequence[] entryValues = new CharSequence[availableLangs.size() + 1]; |
| |
| entries[0] = getActivity().getString(R.string.tts_lang_use_system); |
| entryValues[0] = ""; |
| |
| int i = 1; |
| for (Pair<String, Locale> entry : entryPairs) { |
| if (entry.second.equals(currentLocale)) { |
| mSelectedLocaleIndex = i; |
| } |
| entries[i] = entry.first; |
| entryValues[i++] = entry.second.toString(); |
| } |
| |
| mLocalePreference.setEntries(entries); |
| mLocalePreference.setEntryValues(entryValues); |
| mLocalePreference.setEnabled(true); |
| setLocalePreference(mSelectedLocaleIndex); |
| } |
| |
| /** Set entry from entry table in mLocalePreference */ |
| private void setLocalePreference(int index) { |
| if (index < 0) { |
| mLocalePreference.setValue(""); |
| mLocalePreference.setSummary(R.string.tts_lang_not_selected); |
| } else { |
| mLocalePreference.setValueIndex(index); |
| mLocalePreference.setSummary(mLocalePreference.getEntries()[index]); |
| } |
| } |
| |
| |
| private String getDefaultSampleString() { |
| if (mTts != null && mTts.getLanguage() != null) { |
| try { |
| final String currentLang = mTts.getLanguage().getISO3Language(); |
| String[] strings = getActivity().getResources().getStringArray( |
| R.array.tts_demo_strings); |
| String[] langs = getActivity().getResources().getStringArray( |
| R.array.tts_demo_string_langs); |
| |
| for (int i = 0; i < strings.length; ++i) { |
| if (langs[i].equals(currentLang)) { |
| return strings[i]; |
| } |
| } |
| } catch (MissingResourceException e) { |
| if (DBG) Log.wtf(TAG, "MissingResourceException", e); |
| // Ignore and fall back to default sample string |
| } |
| } |
| return getString(R.string.tts_default_sample_string); |
| } |
| |
| private boolean isNetworkRequiredForSynthesis() { |
| Set<String> features = mTts.getFeatures(mCurrentDefaultLocale); |
| if (features == null) { |
| return false; |
| } |
| return features.contains(TextToSpeech.Engine.KEY_FEATURE_NETWORK_SYNTHESIS) && |
| !features.contains(TextToSpeech.Engine.KEY_FEATURE_EMBEDDED_SYNTHESIS); |
| } |
| |
| private void onSampleTextReceived(int resultCode, Intent data) { |
| String sample = getDefaultSampleString(); |
| |
| if (resultCode == TextToSpeech.LANG_AVAILABLE && data != null) { |
| if (data != null && data.getStringExtra("sampleText") != null) { |
| sample = data.getStringExtra("sampleText"); |
| } |
| if (DBG) Log.d(TAG, "Got sample text: " + sample); |
| } else { |
| if (DBG) Log.d(TAG, "Using default sample text :" + sample); |
| } |
| |
| mSampleText = sample; |
| if (mSampleText != null) { |
| updateWidgetState(true); |
| } else { |
| Log.e(TAG, "Did not have a sample string for the requested language. Using default"); |
| } |
| } |
| |
| private void speakSampleText() { |
| final boolean networkRequired = isNetworkRequiredForSynthesis(); |
| if (!networkRequired || networkRequired && |
| (mTts.isLanguageAvailable(mCurrentDefaultLocale) >= TextToSpeech.LANG_AVAILABLE)) { |
| HashMap<String, String> params = new HashMap<String, String>(); |
| params.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "Sample"); |
| |
| mTts.speak(mSampleText, TextToSpeech.QUEUE_FLUSH, params); |
| } else { |
| Log.w(TAG, "Network required for sample synthesis for requested language"); |
| displayNetworkAlert(); |
| } |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object objValue) { |
| if (preference == mLocalePreference) { |
| String localeString = (String) objValue; |
| updateLanguageTo( |
| (!TextUtils.isEmpty(localeString) |
| ? mEnginesHelper.parseLocaleString(localeString) |
| : null)); |
| checkDefaultLocale(); |
| return true; |
| } |
| return true; |
| } |
| |
| private void updateLanguageTo(Locale locale) { |
| int selectedLocaleIndex = -1; |
| String localeString = (locale != null) ? locale.toString() : ""; |
| for (int i = 0; i < mLocalePreference.getEntryValues().length; i++) { |
| if (localeString.equalsIgnoreCase(mLocalePreference.getEntryValues()[i].toString())) { |
| selectedLocaleIndex = i; |
| break; |
| } |
| } |
| |
| if (selectedLocaleIndex == -1) { |
| Log.w(TAG, "updateLanguageTo called with unknown locale argument"); |
| return; |
| } |
| mLocalePreference.setSummary(mLocalePreference.getEntries()[selectedLocaleIndex]); |
| mSelectedLocaleIndex = selectedLocaleIndex; |
| |
| mEnginesHelper.updateLocalePrefForEngine(mTts.getCurrentEngine(), locale); |
| |
| // Null locale means "use system default" |
| mTts.setLanguage((locale != null) ? locale : Locale.getDefault()); |
| } |
| |
| /** |
| * Ask the current default engine to launch the matching INSTALL_TTS_DATA activity so the |
| * required TTS files are properly installed. |
| */ |
| private void installVoiceData() { |
| if (TextUtils.isEmpty(mCurrentEngine)) return; |
| Intent intent = new Intent(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA); |
| intent.setPackage(mCurrentEngine); |
| try { |
| Log.v(TAG, "Installing voice data: " + intent.toUri(0)); |
| startActivity(intent); |
| } catch (ActivityNotFoundException ex) { |
| Log.e(TAG, "Failed to install TTS data, no acitivty found for " + intent + ")"); |
| } |
| } |
| |
| /** |
| * Called when mPlayExample, mInstallVoicesPreference is clicked. |
| */ |
| @Override |
| public boolean onPreferenceClick(Preference preference) { |
| if (preference == mPlayExample) { |
| // Get the sample text from the TTS engine; onActivityResult will do |
| // the actual speaking |
| speakSampleText(); |
| return true; |
| } else if (preference == mInstallVoicesPreference) { |
| installVoiceData(); |
| return true; |
| } |
| return false; |
| } |
| |
| private void updateWidgetState(boolean enable) { |
| mPlayExample.setEnabled(enable); |
| mEngineStatus.setEnabled(enable); |
| } |
| |
| private void updateEngineStatus(int resourceId) { |
| Locale locale = mCurrentDefaultLocale; |
| if (locale == null) { |
| locale = Locale.getDefault(); |
| } |
| mEngineStatus.setSummary(getString(resourceId, locale.getDisplayName())); |
| } |
| |
| private void displayNetworkAlert() { |
| AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); |
| builder.setTitle(android.R.string.dialog_alert_title) |
| .setMessage(getActivity().getString(R.string.tts_engine_network_required)) |
| .setCancelable(false) |
| .setPositiveButton(android.R.string.ok, null); |
| |
| AlertDialog dialog = builder.create(); |
| dialog.show(); |
| } |
| |
| /** Check whether the voice data for the engine is ok. */ |
| private void checkVoiceData(String engine) { |
| Intent intent = new Intent(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA); |
| intent.setPackage(engine); |
| try { |
| if (DBG) Log.d(TAG, "Updating engine: Checking voice data: " + intent.toUri(0)); |
| startActivityForResult(intent, VOICE_DATA_INTEGRITY_CHECK); |
| } catch (ActivityNotFoundException ex) { |
| Log.e(TAG, "Failed to check TTS data, no activity found for " + intent + ")"); |
| } |
| } |
| |
| /** The voice data check is complete. */ |
| private void onVoiceDataIntegrityCheckDone(Intent data) { |
| final String engine = mTts.getCurrentEngine(); |
| |
| if (engine == null) { |
| Log.e(TAG, "Voice data check complete, but no engine bound"); |
| return; |
| } |
| |
| if (data == null){ |
| Log.e(TAG, "Engine failed voice data integrity check (null return)" + |
| mTts.getCurrentEngine()); |
| return; |
| } |
| |
| android.provider.Settings.Secure.putString(getContentResolver(), TTS_DEFAULT_SYNTH, engine); |
| |
| mAvailableStrLocals = data.getStringArrayListExtra( |
| TextToSpeech.Engine.EXTRA_AVAILABLE_VOICES); |
| if (mAvailableStrLocals == null) { |
| Log.e(TAG, "Voice data check complete, but no available voices found"); |
| // Set mAvailableStrLocals to empty list |
| mAvailableStrLocals = new ArrayList<String>(); |
| } |
| if (evaluateDefaultLocale()) { |
| getSampleText(); |
| } |
| } |
| } |
