New iteration of the Text-to-Speech settings.

- Moves speech rate and pitch back to first page.
- Voice selection is now expected to happen in Engine settings
- Play/reset buttons are now actual buttons.

Test: mmma packages/apps/Settings
Change-Id: I917298473ec473e11eccededee1cb948b0afe911

2 files changed, 176 insertions, 292 deletions

diff --git a/src/com/android/settings/tts/TextToSpeechSettings.java b/src/com/android/settings/tts/TextToSpeechSettings.java
index fe78d20cbd..37993bf2f2 100644
--- a/src/com/android/settings/tts/TextToSpeechSettings.java
+++ b/src/com/android/settings/tts/TextToSpeechSettings.java
@@ -30,13 +30,18 @@ import android.support.v7.preference.Preference;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.Pair;
+import android.view.View;
 import java.util.Comparator;
 import java.util.Collections;
+import com.android.settings.applications.LayoutPreference;
 
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settings.SeekBarPreference;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.widget.GearPreference;
+import android.widget.Button;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -46,11 +51,14 @@ 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;
+import static android.provider.Settings.Secure.TTS_DEFAULT_RATE;
+import static android.provider.Settings.Secure.TTS_DEFAULT_SYNTH;
 
 public class TextToSpeechSettings extends SettingsPreferenceFragment
-        implements Preference.OnPreferenceChangeListener, Preference.OnPreferenceClickListener {
+        implements Preference.OnPreferenceChangeListener,
+                View.OnClickListener,
+                GearPreference.OnGearClickListener {
 
     private static final String STATE_KEY_LOCALE_ENTRIES = "locale_entries";
     private static final String STATE_KEY_LOCALE_ENTRY_VALUES = "locale_entry_values";
@@ -59,11 +67,20 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
     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 pitch selection slider. */
+    private static final String KEY_DEFAULT_PITCH = "tts_default_pitch";
+
+    /** Preference key for the TTS rate selection slider. */
+    private static final String KEY_DEFAULT_RATE = "tts_default_rate";
 
-    /** Preference key for the TTS status field. */
-    private static final String KEY_STATUS = "tts_status";
+    /** Engine picker. */
+    private static final String KEY_TTS_ENGINE_PREFERENCE = "tts_engine_preference";
+
+    /** Locale picker. */
+    private static final String KEY_ENGINE_LOCALE = "tts_default_lang";
+
+    /** Play/Reset buttons container. */
+    private static final String KEY_ACTION_BUTTONS = "action_buttons";
 
     /**
      * These look like birth years, but they aren't mine. I'm much younger than this.
@@ -71,13 +88,32 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
     private static final int GET_SAMPLE_TEXT = 1983;
     private static final int VOICE_DATA_INTEGRITY_CHECK = 1977;
 
-    private Preference mPlayExample;
-    private Preference mEngineStatus;
+    /**
+     * Speech rate value. This value should be kept in sync with the max value set in tts_settings
+     * xml.
+     */
+    private static final int MAX_SPEECH_RATE = 600;
 
+    private static final int MIN_SPEECH_RATE = 10;
 
-    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";
+    /**
+     * Speech pitch value. TTS pitch value varies from 25 to 400, where 100 is the value for normal
+     * pitch. The max pitch value is set to 400, based on feedback from users and the GoogleTTS
+     * pitch variation range. The range for pitch is not set in stone and should be readjusted based
+     * on user need. This value should be kept in sync with the max value set in tts_settings xml.
+     */
+    private static final int MAX_SPEECH_PITCH = 400;
+
+    private static final int MIN_SPEECH_PITCH = 25;
+
+    private SeekBarPreference mDefaultPitchPref;
+    private SeekBarPreference mDefaultRatePref;
+    private Button mResetButton;
+    private Button mPlayButton;
+    private LayoutPreference mActionButtons;
+
+    private int mDefaultPitch = TextToSpeech.Engine.DEFAULT_PITCH;
+    private int mDefaultRate = TextToSpeech.Engine.DEFAULT_RATE;
 
     private int mSelectedLocaleIndex = -1;
 
@@ -90,7 +126,6 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
     private String mSampleText = null;
 
     private ListPreference mLocalePreference;
-    private Preference mEngineSettingsPreference;
     private Preference mInstallVoicesPreference;
 
     /**
@@ -129,15 +164,21 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
 
         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);
 
+        mDefaultPitchPref = (SeekBarPreference) findPreference(KEY_DEFAULT_PITCH);
+        mDefaultRatePref = (SeekBarPreference) findPreference(KEY_DEFAULT_RATE);
+
+        mActionButtons = (LayoutPreference) findPreference(KEY_ACTION_BUTTONS);
+        mPlayButton = (Button) mActionButtons.findViewById(R.id.tts_play_button);
+        mPlayButton.setOnClickListener(this);
+        mPlayButton.setEnabled(false);
+        mResetButton = (Button) mActionButtons.findViewById(R.id.tts_reset_button);
+        mResetButton.setOnClickListener(this);
+
         if (savedInstanceState == null) {
             mLocalePreference.setEnabled(false);
             mLocalePreference.setEntries(new CharSequence[0]);
@@ -157,15 +198,6 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
             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();
@@ -236,9 +268,27 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
     private void initSettings() {
         final ContentResolver resolver = getContentResolver();
 
+        // Set up the default rate and pitch.
+        mDefaultRate =
+                android.provider.Settings.Secure.getInt(
+                        resolver, TTS_DEFAULT_RATE, TextToSpeech.Engine.DEFAULT_RATE);
+        mDefaultPitch =
+                android.provider.Settings.Secure.getInt(
+                        resolver, TTS_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH);
+
+        mDefaultRatePref.setProgress(getSeekBarProgressFromValue(KEY_DEFAULT_RATE, mDefaultRate));
+        mDefaultRatePref.setOnPreferenceChangeListener(this);
+        mDefaultRatePref.setMax(getSeekBarProgressFromValue(KEY_DEFAULT_RATE, MAX_SPEECH_RATE));
+
+        mDefaultPitchPref.setProgress(
+                getSeekBarProgressFromValue(KEY_DEFAULT_PITCH, mDefaultPitch));
+        mDefaultPitchPref.setOnPreferenceChangeListener(this);
+        mDefaultPitchPref.setMax(getSeekBarProgressFromValue(KEY_DEFAULT_PITCH, MAX_SPEECH_PITCH));
+
         if (mTts != null) {
             mCurrentEngine = mTts.getCurrentEngine();
-            mTts.setPitch(android.provider.Settings.Secure.getInt(resolver, TTS_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH)/100.0f);
+            mTts.setSpeechRate(mDefaultRate / 100.0f);
+            mTts.setPitch(mDefaultPitch / 100.0f);
         }
 
         SettingsActivity activity = null;
@@ -251,14 +301,11 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
 
         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");
+
+
+            Preference mEnginePreference = findPreference(KEY_TTS_ENGINE_PREFERENCE);
+            ((GearPreference) mEnginePreference).setOnGearClickListener(this);
             mEnginePreference.setSummary(info.label);
         }
 
@@ -266,8 +313,34 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
     }
 
     /**
-     * Called when the TTS engine is initialized.
+     * The minimum speech pitch/rate value should be > 0 but the minimum value of a seekbar in
+     * android is fixed at 0. Therefore, we increment the seekbar progress with MIN_SPEECH_VALUE so
+     * that the minimum seekbar progress value is MIN_SPEECH_PITCH/RATE. SPEECH_VALUE =
+     * MIN_SPEECH_VALUE + SEEKBAR_PROGRESS
+     */
+    private int getValueFromSeekBarProgress(String preferenceKey, int progress) {
+        if (preferenceKey.equals(KEY_DEFAULT_RATE)) {
+            return MIN_SPEECH_RATE + progress;
+        } else if (preferenceKey.equals(KEY_DEFAULT_PITCH)) {
+            return MIN_SPEECH_PITCH + progress;
+        }
+        return progress;
+    }
+
+    /**
+     * Since we are appending the MIN_SPEECH value to the speech seekbar progress, the speech
+     * seekbar progress should be set to (speechValue - MIN_SPEECH value).
      */
+    private int getSeekBarProgressFromValue(String preferenceKey, int value) {
+        if (preferenceKey.equals(KEY_DEFAULT_RATE)) {
+            return value - MIN_SPEECH_RATE;
+        } else if (preferenceKey.equals(KEY_DEFAULT_PITCH)) {
+            return value - MIN_SPEECH_PITCH;
+        }
+        return value;
+    }
+
+    /** 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.");
@@ -291,7 +364,6 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
         if (defaultLocale == null) {
             Log.e(TAG, "Failed to get default language from engine " + mCurrentEngine);
             updateWidgetState(false);
-            updateEngineStatus(R.string.tts_status_not_supported);
             return;
         }
 
@@ -335,7 +407,6 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
             }
         } catch (MissingResourceException e) {
             if (DBG) Log.wtf(TAG, "MissingResourceException", e);
-            updateEngineStatus(R.string.tts_status_not_supported);
             updateWidgetState(false);
             return false;
         }
@@ -345,15 +416,9 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
                 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;
         }
@@ -409,12 +474,6 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
         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;
@@ -545,7 +604,11 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
 
     @Override
     public boolean onPreferenceChange(Preference preference, Object objValue) {
-        if (preference == mLocalePreference) {
+        if (KEY_DEFAULT_RATE.equals(preference.getKey())) {
+            updateSpeechRate((Integer) objValue);
+        } else if (KEY_DEFAULT_PITCH.equals(preference.getKey())) {
+            updateSpeechPitchValue((Integer) objValue);
+        } else if (preference == mLocalePreference) {
             String localeString = (String) objValue;
             updateLanguageTo(
                     (!TextUtils.isEmpty(localeString)
@@ -580,50 +643,68 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
         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 mPlayButton, mResetButton is clicked. */
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.tts_play_button:
+                // Play button.
+                // Get the sample text from the TTS engine; onActivityResult will do
+                // the actual speaking
+                speakSampleText();
+                break;
+            case R.id.tts_reset_button:
+                // Reset button.
+                int speechRateSeekbarProgress =
+                        getSeekBarProgressFromValue(
+                                KEY_DEFAULT_RATE, TextToSpeech.Engine.DEFAULT_RATE);
+                mDefaultRatePref.setProgress(speechRateSeekbarProgress);
+                updateSpeechRate(speechRateSeekbarProgress);
+                int pitchSeekbarProgress =
+                        getSeekBarProgressFromValue(
+                                KEY_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH);
+                mDefaultPitchPref.setProgress(pitchSeekbarProgress);
+                updateSpeechPitchValue(pitchSeekbarProgress);
+                break;
+            default:
+                break;
         }
     }
 
-    /**
-     * 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;
+    private void updateSpeechRate(int speechRateSeekBarProgress) {
+        mDefaultRate = getValueFromSeekBarProgress(KEY_DEFAULT_RATE, speechRateSeekBarProgress);
+        try {
+            android.provider.Settings.Secure.putInt(
+                    getContentResolver(), TTS_DEFAULT_RATE, mDefaultRate);
+            if (mTts != null) {
+                mTts.setSpeechRate(mDefaultRate / 100.0f);
+            }
+            if (DBG) Log.d(TAG, "TTS default rate changed, now " + mDefaultRate);
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "could not persist default TTS rate setting", e);
         }
-        return false;
+        return;
     }
 
-    private void updateWidgetState(boolean enable) {
-        mPlayExample.setEnabled(enable);
-        mEngineStatus.setEnabled(enable);
+    private void updateSpeechPitchValue(int speechPitchSeekBarProgress) {
+        mDefaultPitch = getValueFromSeekBarProgress(KEY_DEFAULT_PITCH, speechPitchSeekBarProgress);
+        try {
+            android.provider.Settings.Secure.putInt(
+                    getContentResolver(), TTS_DEFAULT_PITCH, mDefaultPitch);
+            if (mTts != null) {
+                mTts.setPitch(mDefaultPitch / 100.0f);
+            }
+            if (DBG) Log.d(TAG, "TTS default pitch changed, now" + mDefaultPitch);
+        } catch (NumberFormatException e) {
+            Log.e(TAG, "could not persist default TTS pitch setting", e);
+        }
+        return;
     }
 
-    private void updateEngineStatus(int resourceId) {
-        Locale locale = mCurrentDefaultLocale;
-        if (locale == null) {
-            locale = Locale.getDefault();
-        }
-        mEngineStatus.setSummary(getString(resourceId, locale.getDisplayName()));
+    private void updateWidgetState(boolean enable) {
+        mPlayButton.setEnabled(enable);
+        mDefaultRatePref.setEnabled(enable);
+        mDefaultPitchPref.setEnabled(enable);
     }
 
     private void displayNetworkAlert() {
@@ -677,4 +758,14 @@ public class TextToSpeechSettings extends SettingsPreferenceFragment
             getSampleText();
         }
     }
+
+    @Override
+    public void onGearClick(GearPreference p) {
+        if (KEY_TTS_ENGINE_PREFERENCE.equals(p.getKey())) {
+            EngineInfo info = mEnginesHelper.getEngineInfo(mCurrentEngine);
+            final Intent settingsIntent = mEnginesHelper.getSettingsIntent(info.name);
+            startActivity(settingsIntent);
+        }
+    }
+
 }
diff --git a/src/com/android/settings/tts/TtsSlidersFragment.java b/src/com/android/settings/tts/TtsSlidersFragment.java
deleted file mode 100644
index 7fdbd62118..0000000000
--- a/src/com/android/settings/tts/TtsSlidersFragment.java
+++ /dev/null
@@ -1,207 +0,0 @@
-package com.android.settings.tts;
-
-import android.speech.tts.TextToSpeech;
-import com.android.settings.R;
-import android.os.Bundle;
-import com.android.settings.SettingsPreferenceFragment;
-import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
-import android.util.Log;
-import com.android.settings.SeekBarPreference;
-import android.support.v7.preference.Preference;
-import android.content.ContentResolver;
-import com.android.settings.search.Indexable;
-import com.android.settings.search.BaseSearchIndexProvider;
-import android.content.Context;
-import android.provider.SearchIndexableResource;
-
-import java.util.List;
-import java.util.Arrays;
-
-import static android.provider.Settings.Secure.TTS_DEFAULT_PITCH;
-import static android.provider.Settings.Secure.TTS_DEFAULT_RATE;
-
-public class TtsSlidersFragment extends SettingsPreferenceFragment
-        implements Preference.OnPreferenceChangeListener,
-                Preference.OnPreferenceClickListener,
-                Indexable {
-    private static final String TAG = TtsSlidersFragment.class.getSimpleName();
-    private static final boolean DBG = false;
-
-    /** Preference key for the TTS pitch selection slider. */
-    private static final String KEY_DEFAULT_PITCH = "tts_default_pitch";
-
-    /** Preference key for the TTS rate selection slider. */
-    private static final String KEY_DEFAULT_RATE = "tts_default_rate";
-
-    /** Preference key for the TTS reset speech rate preference. */
-    private static final String KEY_RESET_SPEECH_RATE = "reset_speech_rate";
-
-    /** Preference key for the TTS reset speech pitch preference. */
-    private static final String KEY_RESET_SPEECH_PITCH = "reset_speech_pitch";
-
-    /**
-     * Speech rate value. This value should be kept in sync with the max value set in tts_settings
-     * xml.
-     */
-    private static final int MAX_SPEECH_RATE = 600;
-
-    private static final int MIN_SPEECH_RATE = 10;
-
-    /**
-     * Speech pitch value. TTS pitch value varies from 25 to 400, where 100 is the value for normal
-     * pitch. The max pitch value is set to 400, based on feedback from users and the GoogleTTS
-     * pitch variation range. The range for pitch is not set in stone and should be readjusted based
-     * on user need. This value should be kept in sync with the max value set in tts_settings xml.
-     */
-    private static final int MAX_SPEECH_PITCH = 400;
-
-    private static final int MIN_SPEECH_PITCH = 25;
-
-    private int mDefaultPitch = TextToSpeech.Engine.DEFAULT_PITCH;
-    private int mDefaultRate = TextToSpeech.Engine.DEFAULT_RATE;
-
-    private SeekBarPreference mDefaultPitchPref;
-    private SeekBarPreference mDefaultRatePref;
-    private Preference mResetSpeechRate;
-    private Preference mResetSpeechPitch;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        addPreferencesFromResource(R.xml.tts_sliders);
-
-        mResetSpeechRate = findPreference(KEY_RESET_SPEECH_RATE);
-        mResetSpeechRate.setOnPreferenceClickListener(this);
-        mResetSpeechPitch = findPreference(KEY_RESET_SPEECH_PITCH);
-        mResetSpeechPitch.setOnPreferenceClickListener(this);
-
-        mDefaultPitchPref = (SeekBarPreference) findPreference(KEY_DEFAULT_PITCH);
-        mDefaultRatePref = (SeekBarPreference) findPreference(KEY_DEFAULT_RATE);
-
-        initSettings();
-    }
-
-    private void initSettings() {
-        final ContentResolver resolver = getContentResolver();
-        // Set up the default rate and pitch.
-        mDefaultRate =
-                android.provider.Settings.Secure.getInt(
-                        resolver, TTS_DEFAULT_RATE, TextToSpeech.Engine.DEFAULT_RATE);
-        mDefaultPitch =
-                android.provider.Settings.Secure.getInt(
-                        resolver, TTS_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH);
-
-        mDefaultRatePref.setProgress(getSeekBarProgressFromValue(KEY_DEFAULT_RATE, mDefaultRate));
-        mDefaultRatePref.setOnPreferenceChangeListener(this);
-        mDefaultRatePref.setMax(getSeekBarProgressFromValue(KEY_DEFAULT_RATE, MAX_SPEECH_RATE));
-
-        mDefaultPitchPref.setProgress(
-                getSeekBarProgressFromValue(KEY_DEFAULT_PITCH, mDefaultPitch));
-        mDefaultPitchPref.setOnPreferenceChangeListener(this);
-        mDefaultPitchPref.setMax(getSeekBarProgressFromValue(KEY_DEFAULT_PITCH, MAX_SPEECH_PITCH));
-    }
-
-    /**
-     * The minimum speech pitch/rate value should be > 0 but the minimum value of a seekbar in
-     * android is fixed at 0. Therefore, we increment the seekbar progress with MIN_SPEECH_VALUE so
-     * that the minimum seekbar progress value is MIN_SPEECH_PITCH/RATE. SPEECH_VALUE =
-     * MIN_SPEECH_VALUE + SEEKBAR_PROGRESS
-     */
-    private int getValueFromSeekBarProgress(String preferenceKey, int progress) {
-        if (preferenceKey.equals(KEY_DEFAULT_RATE)) {
-            return MIN_SPEECH_RATE + progress;
-        } else if (preferenceKey.equals(KEY_DEFAULT_PITCH)) {
-            return MIN_SPEECH_PITCH + progress;
-        }
-        return progress;
-    }
-
-    /**
-     * Since we are appending the MIN_SPEECH value to the speech seekbar progress, the speech
-     * seekbar progress should be set to (speechValue - MIN_SPEECH value).
-     */
-    private int getSeekBarProgressFromValue(String preferenceKey, int value) {
-        if (preferenceKey.equals(KEY_DEFAULT_RATE)) {
-            return value - MIN_SPEECH_RATE;
-        } else if (preferenceKey.equals(KEY_DEFAULT_PITCH)) {
-            return value - MIN_SPEECH_PITCH;
-        }
-        return value;
-    }
-
-    @Override
-    public boolean onPreferenceChange(Preference preference, Object objValue) {
-        if (KEY_DEFAULT_RATE.equals(preference.getKey())) {
-            updateSpeechRate((Integer) objValue);
-        } else if (KEY_DEFAULT_PITCH.equals(preference.getKey())) {
-            updateSpeechPitchValue((Integer) objValue);
-        }
-        return true;
-    }
-
-    /** Called when mPlayExample, mResetSpeechRate or mResetSpeechPitch is clicked. */
-    @Override
-    public boolean onPreferenceClick(Preference preference) {
-        if (preference == mResetSpeechRate) {
-            int speechRateSeekbarProgress =
-                    getSeekBarProgressFromValue(KEY_DEFAULT_RATE, TextToSpeech.Engine.DEFAULT_RATE);
-            mDefaultRatePref.setProgress(speechRateSeekbarProgress);
-            updateSpeechRate(speechRateSeekbarProgress);
-            return true;
-        } else if (preference == mResetSpeechPitch) {
-            int pitchSeekbarProgress =
-                    getSeekBarProgressFromValue(
-                            KEY_DEFAULT_PITCH, TextToSpeech.Engine.DEFAULT_PITCH);
-            mDefaultPitchPref.setProgress(pitchSeekbarProgress);
-            updateSpeechPitchValue(pitchSeekbarProgress);
-            return true;
-        }
-        return false;
-    }
-
-    private void updateSpeechRate(int speechRateSeekBarProgress) {
-        mDefaultRate = getValueFromSeekBarProgress(KEY_DEFAULT_RATE, speechRateSeekBarProgress);
-        try {
-            android.provider.Settings.Secure.putInt(
-                    getContentResolver(), TTS_DEFAULT_RATE, mDefaultRate);
-            if (DBG) Log.d(TAG, "TTS default rate changed, now " + mDefaultRate);
-        } catch (NumberFormatException e) {
-            Log.e(TAG, "could not persist default TTS rate setting", e);
-        }
-        return;
-    }
-
-    private void updateSpeechPitchValue(int speechPitchSeekBarProgress) {
-        mDefaultPitch = getValueFromSeekBarProgress(KEY_DEFAULT_PITCH, speechPitchSeekBarProgress);
-        try {
-            android.provider.Settings.Secure.putInt(
-                    getContentResolver(), TTS_DEFAULT_PITCH, mDefaultPitch);
-            if (DBG) Log.d(TAG, "TTS default pitch changed, now" + mDefaultPitch);
-        } catch (NumberFormatException e) {
-            Log.e(TAG, "could not persist default TTS pitch setting", e);
-        }
-        return;
-    }
-
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-    }
-
-    @Override
-    public int getMetricsCategory() {
-        return MetricsEvent.TTS_SLIDERS;
-    }
-
-    public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
-            new BaseSearchIndexProvider() {
-                @Override
-                public List<SearchIndexableResource> getXmlResourcesToIndex(
-                        Context context, boolean enabled) {
-                    Log.i(TAG, "Indexing");
-                    final SearchIndexableResource sir = new SearchIndexableResource(context);
-                    sir.xmlResId = R.xml.tts_sliders;
-                    return Arrays.asList(sir);
-                }
-            };
-}