SettingsValues.java revision 5896153f931ac876ad667d73d7703289a63e9bf5 
1/*
2 * Copyright (C) 2011 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
17package com.android.inputmethod.latin.settings;
18
19import android.content.Context;
20import android.content.SharedPreferences;
21import android.content.pm.PackageInfo;
22import android.content.res.Configuration;
23import android.content.res.Resources;
24import android.util.Log;
25import android.view.inputmethod.EditorInfo;
26
27import com.android.inputmethod.compat.AppWorkaroundsUtils;
28import com.android.inputmethod.latin.InputAttributes;
29import com.android.inputmethod.latin.R;
30import com.android.inputmethod.latin.RichInputMethodManager;
31import com.android.inputmethod.latin.SubtypeSwitcher;
32import com.android.inputmethod.latin.utils.AsyncResultHolder;
33import com.android.inputmethod.latin.utils.ResourceUtils;
34import com.android.inputmethod.latin.utils.TargetPackageInfoGetterTask;
35
36import java.util.Arrays;
37import java.util.Locale;
38
39/**
40 * When you call the constructor of this class, you may want to change the current system locale by
41 * using {@link com.android.inputmethod.latin.utils.RunInLocale}.
42 */
43public final class SettingsValues {
44    private static final String TAG = SettingsValues.class.getSimpleName();
45    // "floatMaxValue" and "floatNegativeInfinity" are special marker strings for
46    // Float.NEGATIVE_INFINITE and Float.MAX_VALUE. Currently used for auto-correction settings.
47    private static final String FLOAT_MAX_VALUE_MARKER_STRING = "floatMaxValue";
48    private static final String FLOAT_NEGATIVE_INFINITY_MARKER_STRING = "floatNegativeInfinity";
49    private static final int TIMEOUT_TO_GET_TARGET_PACKAGE = 5; // seconds
50
51    // From resources:
52    public final SpacingAndPunctuations mSpacingAndPunctuations;
53    public final int mDelayInMillisecondsToUpdateOldSuggestions;
54    public final long mDoubleSpacePeriodTimeout;
55    // From configuration:
56    public final Locale mLocale;
57    public final boolean mHasHardwareKeyboard;
58    public final int mDisplayOrientation;
59    // From preferences, in the same order as xml/prefs.xml:
60    public final boolean mAutoCap;
61    public final boolean mVibrateOn;
62    public final boolean mSoundOn;
63    public final boolean mKeyPreviewPopupOn;
64    public final boolean mShowsVoiceInputKey;
65    public final boolean mIncludesOtherImesInLanguageSwitchList;
66    public final boolean mShowsLanguageSwitchKey;
67    public final boolean mUseContactsDict;
68    public final boolean mUsePersonalizedDicts;
69    public final boolean mUseDoubleSpacePeriod;
70    public final boolean mBlockPotentiallyOffensive;
71    // Use bigrams to predict the next word when there is no input for it yet
72    public final boolean mBigramPredictionEnabled;
73    public final boolean mGestureInputEnabled;
74    public final boolean mGestureTrailEnabled;
75    public final boolean mGestureFloatingPreviewTextEnabled;
76    public final boolean mSlidingKeyInputPreviewEnabled;
77    public final boolean mPhraseGestureEnabled;
78    public final int mKeyLongpressTimeout;
79    public final boolean mEnableMetricsLogging;
80    public final boolean mShouldShowUiToAcceptTypedWord;
81
82    // From the input box
83    public final InputAttributes mInputAttributes;
84
85    // Deduced settings
86    public final int mKeypressVibrationDuration;
87    public final float mKeypressSoundVolume;
88    public final int mKeyPreviewPopupDismissDelay;
89    private final boolean mAutoCorrectEnabled;
90    public final float mAutoCorrectionThreshold;
91    public final boolean mAutoCorrectionEnabledPerUserSettings;
92    private final boolean mSuggestionsEnabledPerUserSettings;
93    private final AsyncResultHolder<AppWorkaroundsUtils> mAppWorkarounds;
94
95    // Setting values for additional features
96    public final int[] mAdditionalFeaturesSettingValues =
97            new int[AdditionalFeaturesSettingUtils.ADDITIONAL_FEATURES_SETTINGS_SIZE];
98
99    // TextDecorator
100    public final int mTextHighlightColorForAddToDictionaryIndicator;
101
102    // Debug settings
103    public final boolean mIsInternal;
104    public final boolean mHasCustomKeyPreviewAnimationParams;
105    public final int mKeyPreviewShowUpDuration;
106    public final int mKeyPreviewDismissDuration;
107    public final float mKeyPreviewShowUpStartXScale;
108    public final float mKeyPreviewShowUpStartYScale;
109    public final float mKeyPreviewDismissEndXScale;
110    public final float mKeyPreviewDismissEndYScale;
111
112    public SettingsValues(final Context context, final SharedPreferences prefs, final Resources res,
113            final InputAttributes inputAttributes) {
114        mLocale = res.getConfiguration().locale;
115        // Get the resources
116        mDelayInMillisecondsToUpdateOldSuggestions =
117                res.getInteger(R.integer.config_delay_in_milliseconds_to_update_old_suggestions);
118        mSpacingAndPunctuations = new SpacingAndPunctuations(res);
119
120        // Store the input attributes
121        if (null == inputAttributes) {
122            mInputAttributes = new InputAttributes(
123                    null, false /* isFullscreenMode */, context.getPackageName());
124        } else {
125            mInputAttributes = inputAttributes;
126        }
127
128        // Get the settings preferences
129        mAutoCap = prefs.getBoolean(Settings.PREF_AUTO_CAP, true);
130        mVibrateOn = Settings.readVibrationEnabled(prefs, res);
131        mSoundOn = Settings.readKeypressSoundEnabled(prefs, res);
132        mKeyPreviewPopupOn = Settings.readKeyPreviewPopupEnabled(prefs, res);
133        mSlidingKeyInputPreviewEnabled = prefs.getBoolean(
134                DebugSettings.PREF_SLIDING_KEY_INPUT_PREVIEW, true);
135        mShowsVoiceInputKey = needsToShowVoiceInputKey(prefs, res)
136                && mInputAttributes.mShouldShowVoiceInputKey
137                && SubtypeSwitcher.getInstance().isShortcutImeEnabled();
138        final String autoCorrectionThresholdRawValue = prefs.getString(
139                Settings.PREF_AUTO_CORRECTION_THRESHOLD,
140                res.getString(R.string.auto_correction_threshold_mode_index_modest));
141        mIncludesOtherImesInLanguageSwitchList = Settings.ENABLE_SHOW_LANGUAGE_SWITCH_KEY_SETTINGS
142                ? prefs.getBoolean(Settings.PREF_INCLUDE_OTHER_IMES_IN_LANGUAGE_SWITCH_LIST, false)
143                : true /* forcibly */;
144        mShowsLanguageSwitchKey = Settings.ENABLE_SHOW_LANGUAGE_SWITCH_KEY_SETTINGS
145                ? Settings.readShowsLanguageSwitchKey(prefs) : true /* forcibly */;
146        mUseContactsDict = prefs.getBoolean(Settings.PREF_KEY_USE_CONTACTS_DICT, true);
147        mUsePersonalizedDicts = prefs.getBoolean(Settings.PREF_KEY_USE_PERSONALIZED_DICTS, true);
148        mUseDoubleSpacePeriod = prefs.getBoolean(Settings.PREF_KEY_USE_DOUBLE_SPACE_PERIOD, true)
149                && inputAttributes.mIsGeneralTextInput;
150        mBlockPotentiallyOffensive = Settings.readBlockPotentiallyOffensive(prefs, res);
151        mAutoCorrectEnabled = Settings.readAutoCorrectEnabled(autoCorrectionThresholdRawValue, res);
152        mBigramPredictionEnabled = readBigramPredictionEnabled(prefs, res);
153        mDoubleSpacePeriodTimeout = res.getInteger(R.integer.config_double_space_period_timeout);
154        mHasHardwareKeyboard = Settings.readHasHardwareKeyboard(res.getConfiguration());
155        mEnableMetricsLogging = prefs.getBoolean(Settings.PREF_ENABLE_METRICS_LOGGING, true);
156        mShouldShowUiToAcceptTypedWord = Settings.HAS_UI_TO_ACCEPT_TYPED_WORD
157                && prefs.getBoolean(DebugSettings.PREF_SHOW_UI_TO_ACCEPT_TYPED_WORD, true);
158        // Compute other readable settings
159        mKeyLongpressTimeout = Settings.readKeyLongpressTimeout(prefs, res);
160        mKeypressVibrationDuration = Settings.readKeypressVibrationDuration(prefs, res);
161        mKeypressSoundVolume = Settings.readKeypressSoundVolume(prefs, res);
162        mKeyPreviewPopupDismissDelay = Settings.readKeyPreviewPopupDismissDelay(prefs, res);
163        mAutoCorrectionThreshold = readAutoCorrectionThreshold(res,
164                autoCorrectionThresholdRawValue);
165        mGestureInputEnabled = Settings.readGestureInputEnabled(prefs, res);
166        mGestureTrailEnabled = prefs.getBoolean(Settings.PREF_GESTURE_PREVIEW_TRAIL, true);
167        mGestureFloatingPreviewTextEnabled = prefs.getBoolean(
168                Settings.PREF_GESTURE_FLOATING_PREVIEW_TEXT, true);
169        mPhraseGestureEnabled = Settings.readPhraseGestureEnabled(prefs, res);
170        mAutoCorrectionEnabledPerUserSettings = mAutoCorrectEnabled
171                && !mInputAttributes.mInputTypeNoAutoCorrect;
172        mSuggestionsEnabledPerUserSettings = readSuggestionsEnabled(prefs);
173        AdditionalFeaturesSettingUtils.readAdditionalFeaturesPreferencesIntoArray(
174                prefs, mAdditionalFeaturesSettingValues);
175        mTextHighlightColorForAddToDictionaryIndicator = res.getColor(
176                R.color.text_decorator_add_to_dictionary_indicator_text_highlight_color);
177        mIsInternal = Settings.isInternal(prefs);
178        mHasCustomKeyPreviewAnimationParams = prefs.getBoolean(
179                DebugSettings.PREF_HAS_CUSTOM_KEY_PREVIEW_ANIMATION_PARAMS, false);
180        mKeyPreviewShowUpDuration = Settings.readKeyPreviewAnimationDuration(
181                prefs, DebugSettings.PREF_KEY_PREVIEW_SHOW_UP_DURATION,
182                res.getInteger(R.integer.config_key_preview_show_up_duration));
183        mKeyPreviewDismissDuration = Settings.readKeyPreviewAnimationDuration(
184                prefs, DebugSettings.PREF_KEY_PREVIEW_DISMISS_DURATION,
185                res.getInteger(R.integer.config_key_preview_dismiss_duration));
186        final float defaultKeyPreviewShowUpStartScale = ResourceUtils.getFloatFromFraction(
187                res, R.fraction.config_key_preview_show_up_start_scale);
188        final float defaultKeyPreviewDismissEndScale = ResourceUtils.getFloatFromFraction(
189                res, R.fraction.config_key_preview_dismiss_end_scale);
190        mKeyPreviewShowUpStartXScale = Settings.readKeyPreviewAnimationScale(
191                prefs, DebugSettings.PREF_KEY_PREVIEW_SHOW_UP_START_X_SCALE,
192                defaultKeyPreviewShowUpStartScale);
193        mKeyPreviewShowUpStartYScale = Settings.readKeyPreviewAnimationScale(
194                prefs, DebugSettings.PREF_KEY_PREVIEW_SHOW_UP_START_Y_SCALE,
195                defaultKeyPreviewShowUpStartScale);
196        mKeyPreviewDismissEndXScale = Settings.readKeyPreviewAnimationScale(
197                prefs, DebugSettings.PREF_KEY_PREVIEW_DISMISS_END_X_SCALE,
198                defaultKeyPreviewDismissEndScale);
199        mKeyPreviewDismissEndYScale = Settings.readKeyPreviewAnimationScale(
200                prefs, DebugSettings.PREF_KEY_PREVIEW_DISMISS_END_Y_SCALE,
201                defaultKeyPreviewDismissEndScale);
202        mDisplayOrientation = res.getConfiguration().orientation;
203        mAppWorkarounds = new AsyncResultHolder<>();
204        final PackageInfo packageInfo = TargetPackageInfoGetterTask.getCachedPackageInfo(
205                mInputAttributes.mTargetApplicationPackageName);
206        if (null != packageInfo) {
207            mAppWorkarounds.set(new AppWorkaroundsUtils(packageInfo));
208        } else {
209            new TargetPackageInfoGetterTask(context, mAppWorkarounds)
210                    .execute(mInputAttributes.mTargetApplicationPackageName);
211        }
212    }
213
214    public boolean isApplicationSpecifiedCompletionsOn() {
215        return mInputAttributes.mApplicationSpecifiedCompletionOn;
216    }
217
218    public boolean needsToLookupSuggestions() {
219        return mInputAttributes.mShouldShowSuggestions
220                && (mAutoCorrectionEnabledPerUserSettings || isSuggestionsEnabledPerUserSettings());
221    }
222
223    public boolean isSuggestionsEnabledPerUserSettings() {
224        return mSuggestionsEnabledPerUserSettings;
225    }
226
227    public boolean isWordSeparator(final int code) {
228        return mSpacingAndPunctuations.isWordSeparator(code);
229    }
230
231    public boolean isWordConnector(final int code) {
232        return mSpacingAndPunctuations.isWordConnector(code);
233    }
234
235    public boolean isWordCodePoint(final int code) {
236        return Character.isLetter(code) || isWordConnector(code)
237                || Character.COMBINING_SPACING_MARK == Character.getType(code);
238    }
239
240    public boolean isUsuallyPrecededBySpace(final int code) {
241        return mSpacingAndPunctuations.isUsuallyPrecededBySpace(code);
242    }
243
244    public boolean isUsuallyFollowedBySpace(final int code) {
245        return mSpacingAndPunctuations.isUsuallyFollowedBySpace(code);
246    }
247
248    public boolean shouldInsertSpacesAutomatically() {
249        return mInputAttributes.mShouldInsertSpacesAutomatically;
250    }
251
252    public boolean isLanguageSwitchKeyEnabled() {
253        if (!mShowsLanguageSwitchKey) {
254            return false;
255        }
256        final RichInputMethodManager imm = RichInputMethodManager.getInstance();
257        if (mIncludesOtherImesInLanguageSwitchList) {
258            return imm.hasMultipleEnabledIMEsOrSubtypes(false /* include aux subtypes */);
259        } else {
260            return imm.hasMultipleEnabledSubtypesInThisIme(false /* include aux subtypes */);
261        }
262    }
263
264    public boolean isSameInputType(final EditorInfo editorInfo) {
265        return mInputAttributes.isSameInputType(editorInfo);
266    }
267
268    public boolean hasSameOrientation(final Configuration configuration) {
269        return mDisplayOrientation == configuration.orientation;
270    }
271
272    public boolean isBeforeJellyBean() {
273        final AppWorkaroundsUtils appWorkaroundUtils
274                = mAppWorkarounds.get(null, TIMEOUT_TO_GET_TARGET_PACKAGE);
275        return null == appWorkaroundUtils ? false : appWorkaroundUtils.isBeforeJellyBean();
276    }
277
278    public boolean isBrokenByRecorrection() {
279        final AppWorkaroundsUtils appWorkaroundUtils
280                = mAppWorkarounds.get(null, TIMEOUT_TO_GET_TARGET_PACKAGE);
281        return null == appWorkaroundUtils ? false : appWorkaroundUtils.isBrokenByRecorrection();
282    }
283
284    private static final String SUGGESTIONS_VISIBILITY_HIDE_VALUE_OBSOLETE = "2";
285
286    private static boolean readSuggestionsEnabled(final SharedPreferences prefs) {
287        if (prefs.contains(Settings.PREF_SHOW_SUGGESTIONS_SETTING_OBSOLETE)) {
288            final boolean alwaysHide = SUGGESTIONS_VISIBILITY_HIDE_VALUE_OBSOLETE.equals(
289                    prefs.getString(Settings.PREF_SHOW_SUGGESTIONS_SETTING_OBSOLETE, null));
290            prefs.edit()
291                    .remove(Settings.PREF_SHOW_SUGGESTIONS_SETTING_OBSOLETE)
292                    .putBoolean(Settings.PREF_SHOW_SUGGESTIONS, !alwaysHide)
293                    .apply();
294        }
295        return prefs.getBoolean(Settings.PREF_SHOW_SUGGESTIONS, true);
296    }
297
298    private static boolean readBigramPredictionEnabled(final SharedPreferences prefs,
299            final Resources res) {
300        return prefs.getBoolean(Settings.PREF_BIGRAM_PREDICTIONS, res.getBoolean(
301                R.bool.config_default_next_word_prediction));
302    }
303
304    private static float readAutoCorrectionThreshold(final Resources res,
305            final String currentAutoCorrectionSetting) {
306        final String[] autoCorrectionThresholdValues = res.getStringArray(
307                R.array.auto_correction_threshold_values);
308        // When autoCorrectionThreshold is greater than 1.0, it's like auto correction is off.
309        final float autoCorrectionThreshold;
310        try {
311            final int arrayIndex = Integer.parseInt(currentAutoCorrectionSetting);
312            if (arrayIndex >= 0 && arrayIndex < autoCorrectionThresholdValues.length) {
313                final String val = autoCorrectionThresholdValues[arrayIndex];
314                if (FLOAT_MAX_VALUE_MARKER_STRING.equals(val)) {
315                    autoCorrectionThreshold = Float.MAX_VALUE;
316                } else if (FLOAT_NEGATIVE_INFINITY_MARKER_STRING.equals(val)) {
317                    autoCorrectionThreshold = Float.NEGATIVE_INFINITY;
318                } else {
319                    autoCorrectionThreshold = Float.parseFloat(val);
320                }
321            } else {
322                autoCorrectionThreshold = Float.MAX_VALUE;
323            }
324        } catch (final NumberFormatException e) {
325            // Whenever the threshold settings are correct, never come here.
326            Log.w(TAG, "Cannot load auto correction threshold setting."
327                    + " currentAutoCorrectionSetting: " + currentAutoCorrectionSetting
328                    + ", autoCorrectionThresholdValues: "
329                    + Arrays.toString(autoCorrectionThresholdValues), e);
330            return Float.MAX_VALUE;
331        }
332        return autoCorrectionThreshold;
333    }
334
335    private static boolean needsToShowVoiceInputKey(final SharedPreferences prefs,
336            final Resources res) {
337        // Migrate preference from {@link Settings#PREF_VOICE_MODE_OBSOLETE} to
338        // {@link Settings#PREF_VOICE_INPUT_KEY}.
339        if (prefs.contains(Settings.PREF_VOICE_MODE_OBSOLETE)) {
340            final String voiceModeMain = res.getString(R.string.voice_mode_main);
341            final String voiceMode = prefs.getString(
342                    Settings.PREF_VOICE_MODE_OBSOLETE, voiceModeMain);
343            final boolean shouldShowVoiceInputKey = voiceModeMain.equals(voiceMode);
344            prefs.edit()
345                    .putBoolean(Settings.PREF_VOICE_INPUT_KEY, shouldShowVoiceInputKey)
346                    // Remove the obsolete preference if exists.
347                    .remove(Settings.PREF_VOICE_MODE_OBSOLETE)
348                    .apply();
349        }
350        return prefs.getBoolean(Settings.PREF_VOICE_INPUT_KEY, true);
351    }
352
353    public String dump() {
354        final StringBuilder sb = new StringBuilder("Current settings :");
355        sb.append("\n   mSpacingAndPunctuations = ");
356        sb.append("" + mSpacingAndPunctuations.dump());
357        sb.append("\n   mDelayInMillisecondsToUpdateOldSuggestions = ");
358        sb.append("" + mDelayInMillisecondsToUpdateOldSuggestions);
359        sb.append("\n   mAutoCap = ");
360        sb.append("" + mAutoCap);
361        sb.append("\n   mVibrateOn = ");
362        sb.append("" + mVibrateOn);
363        sb.append("\n   mSoundOn = ");
364        sb.append("" + mSoundOn);
365        sb.append("\n   mKeyPreviewPopupOn = ");
366        sb.append("" + mKeyPreviewPopupOn);
367        sb.append("\n   mShowsVoiceInputKey = ");
368        sb.append("" + mShowsVoiceInputKey);
369        sb.append("\n   mIncludesOtherImesInLanguageSwitchList = ");
370        sb.append("" + mIncludesOtherImesInLanguageSwitchList);
371        sb.append("\n   mShowsLanguageSwitchKey = ");
372        sb.append("" + mShowsLanguageSwitchKey);
373        sb.append("\n   mUseContactsDict = ");
374        sb.append("" + mUseContactsDict);
375        sb.append("\n   mUsePersonalizedDicts = ");
376        sb.append("" + mUsePersonalizedDicts);
377        sb.append("\n   mUseDoubleSpacePeriod = ");
378        sb.append("" + mUseDoubleSpacePeriod);
379        sb.append("\n   mBlockPotentiallyOffensive = ");
380        sb.append("" + mBlockPotentiallyOffensive);
381        sb.append("\n   mBigramPredictionEnabled = ");
382        sb.append("" + mBigramPredictionEnabled);
383        sb.append("\n   mGestureInputEnabled = ");
384        sb.append("" + mGestureInputEnabled);
385        sb.append("\n   mGestureTrailEnabled = ");
386        sb.append("" + mGestureTrailEnabled);
387        sb.append("\n   mGestureFloatingPreviewTextEnabled = ");
388        sb.append("" + mGestureFloatingPreviewTextEnabled);
389        sb.append("\n   mSlidingKeyInputPreviewEnabled = ");
390        sb.append("" + mSlidingKeyInputPreviewEnabled);
391        sb.append("\n   mPhraseGestureEnabled = ");
392        sb.append("" + mPhraseGestureEnabled);
393        sb.append("\n   mKeyLongpressTimeout = ");
394        sb.append("" + mKeyLongpressTimeout);
395        sb.append("\n   mLocale = ");
396        sb.append("" + mLocale);
397        sb.append("\n   mInputAttributes = ");
398        sb.append("" + mInputAttributes);
399        sb.append("\n   mKeypressVibrationDuration = ");
400        sb.append("" + mKeypressVibrationDuration);
401        sb.append("\n   mKeypressSoundVolume = ");
402        sb.append("" + mKeypressSoundVolume);
403        sb.append("\n   mKeyPreviewPopupDismissDelay = ");
404        sb.append("" + mKeyPreviewPopupDismissDelay);
405        sb.append("\n   mAutoCorrectEnabled = ");
406        sb.append("" + mAutoCorrectEnabled);
407        sb.append("\n   mAutoCorrectionThreshold = ");
408        sb.append("" + mAutoCorrectionThreshold);
409        sb.append("\n   mAutoCorrectionEnabledPerUserSettings = ");
410        sb.append("" + mAutoCorrectionEnabledPerUserSettings);
411        sb.append("\n   mSuggestionsEnabledPerUserSettings = ");
412        sb.append("" + mSuggestionsEnabledPerUserSettings);
413        sb.append("\n   mDisplayOrientation = ");
414        sb.append("" + mDisplayOrientation);
415        sb.append("\n   mAppWorkarounds = ");
416        final AppWorkaroundsUtils awu = mAppWorkarounds.get(null, 0);
417        sb.append("" + (null == awu ? "null" : awu.toString()));
418        sb.append("\n   mAdditionalFeaturesSettingValues = ");
419        sb.append("" + Arrays.toString(mAdditionalFeaturesSettingValues));
420        sb.append("\n   mTextHighlightColorForAddToDictionaryIndicator = ");
421        sb.append("" + mTextHighlightColorForAddToDictionaryIndicator);
422        sb.append("\n   mIsInternal = ");
423        sb.append("" + mIsInternal);
424        sb.append("\n   mKeyPreviewShowUpDuration = ");
425        sb.append("" + mKeyPreviewShowUpDuration);
426        sb.append("\n   mKeyPreviewDismissDuration = ");
427        sb.append("" + mKeyPreviewDismissDuration);
428        sb.append("\n   mKeyPreviewShowUpStartScaleX = ");
429        sb.append("" + mKeyPreviewShowUpStartXScale);
430        sb.append("\n   mKeyPreviewShowUpStartScaleY = ");
431        sb.append("" + mKeyPreviewShowUpStartYScale);
432        sb.append("\n   mKeyPreviewDismissEndScaleX = ");
433        sb.append("" + mKeyPreviewDismissEndXScale);
434        sb.append("\n   mKeyPreviewDismissEndScaleY = ");
435        sb.append("" + mKeyPreviewDismissEndYScale);
436        return sb.toString();
437    }
438}
439