Settings.java revision 5d34e9b63d5305934dcedac11e8dd658ae23c174
1/*
2 * Copyright (C) 2006 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 android.provider;
18
19import com.google.android.collect.Maps;
20
21import org.apache.commons.codec.binary.Base64;
22
23import android.annotation.SdkConstant;
24import android.annotation.SdkConstant.SdkConstantType;
25import android.content.ComponentName;
26import android.content.ContentQueryMap;
27import android.content.ContentResolver;
28import android.content.ContentValues;
29import android.content.Context;
30import android.content.Intent;
31import android.content.pm.PackageManager;
32import android.content.pm.ResolveInfo;
33import android.content.res.Configuration;
34import android.content.res.Resources;
35import android.database.Cursor;
36import android.database.SQLException;
37import android.net.Uri;
38import android.os.*;
39import android.telephony.TelephonyManager;
40import android.text.TextUtils;
41import android.util.AndroidException;
42import android.util.Config;
43import android.util.Log;
44
45import java.net.URISyntaxException;
46import java.security.MessageDigest;
47import java.security.NoSuchAlgorithmException;
48import java.util.Collections;
49import java.util.HashMap;
50import java.util.HashSet;
51import java.util.Map;
52
53
54/**
55 * The Settings provider contains global system-level device preferences.
56 */
57public final class Settings {
58
59    // Intent actions for Settings
60
61    /**
62     * Activity Action: Show system settings.
63     * <p>
64     * Input: Nothing.
65     * <p>
66     * Output: nothing.
67     */
68    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
69    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
70
71    /**
72     * Activity Action: Show settings to allow configuration of APNs.
73     * <p>
74     * Input: Nothing.
75     * <p>
76     * Output: nothing.
77     */
78    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
79    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
80
81    /**
82     * Activity Action: Show settings to allow configuration of current location
83     * sources.
84     * <p>
85     * In some cases, a matching Activity may not exist, so ensure you
86     * safeguard against this.
87     * <p>
88     * Input: Nothing.
89     * <p>
90     * Output: Nothing.
91     */
92    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
93    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
94            "android.settings.LOCATION_SOURCE_SETTINGS";
95
96    /**
97     * Activity Action: Show settings to allow configuration of wireless controls
98     * such as Wi-Fi, Bluetooth and Mobile networks.
99     * <p>
100     * In some cases, a matching Activity may not exist, so ensure you
101     * safeguard against this.
102     * <p>
103     * Input: Nothing.
104     * <p>
105     * Output: Nothing.
106     */
107    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
108    public static final String ACTION_WIRELESS_SETTINGS =
109            "android.settings.WIRELESS_SETTINGS";
110
111    /**
112     * Activity Action: Show settings to allow entering/exiting airplane mode.
113     * <p>
114     * In some cases, a matching Activity may not exist, so ensure you
115     * safeguard against this.
116     * <p>
117     * Input: Nothing.
118     * <p>
119     * Output: Nothing.
120     */
121    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
122    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
123            "android.settings.AIRPLANE_MODE_SETTINGS";
124
125    /**
126     * Activity Action: Show settings for accessibility modules.
127     * <p>
128     * In some cases, a matching Activity may not exist, so ensure you
129     * safeguard against this.
130     * <p>
131     * Input: Nothing.
132     * <p>
133     * Output: Nothing.
134     */
135    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
136    public static final String ACTION_ACCESSIBILITY_SETTINGS =
137            "android.settings.ACCESSIBILITY_SETTINGS";
138
139    /**
140     * Activity Action: Show settings to allow configuration of security and
141     * location privacy.
142     * <p>
143     * In some cases, a matching Activity may not exist, so ensure you
144     * safeguard against this.
145     * <p>
146     * Input: Nothing.
147     * <p>
148     * Output: Nothing.
149     */
150    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
151    public static final String ACTION_SECURITY_SETTINGS =
152            "android.settings.SECURITY_SETTINGS";
153
154    /**
155     * Activity Action: Show settings to allow configuration of privacy options.
156     * <p>
157     * In some cases, a matching Activity may not exist, so ensure you
158     * safeguard against this.
159     * <p>
160     * Input: Nothing.
161     * <p>
162     * Output: Nothing.
163     */
164    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
165    public static final String ACTION_PRIVACY_SETTINGS =
166            "android.settings.PRIVACY_SETTINGS";
167
168    /**
169     * Activity Action: Show settings to allow configuration of Wi-Fi.
170
171     * <p>
172     * In some cases, a matching Activity may not exist, so ensure you
173     * safeguard against this.
174     * <p>
175     * Input: Nothing.
176     * <p>
177     * Output: Nothing.
178
179     */
180    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
181    public static final String ACTION_WIFI_SETTINGS =
182            "android.settings.WIFI_SETTINGS";
183
184    /**
185     * Activity Action: Show settings to allow configuration of a static IP
186     * address for Wi-Fi.
187     * <p>
188     * In some cases, a matching Activity may not exist, so ensure you safeguard
189     * against this.
190     * <p>
191     * Input: Nothing.
192     * <p>
193     * Output: Nothing.
194     */
195    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
196    public static final String ACTION_WIFI_IP_SETTINGS =
197            "android.settings.WIFI_IP_SETTINGS";
198
199    /**
200     * Activity Action: Show settings to allow configuration of Bluetooth.
201     * <p>
202     * In some cases, a matching Activity may not exist, so ensure you
203     * safeguard against this.
204     * <p>
205     * Input: Nothing.
206     * <p>
207     * Output: Nothing.
208     */
209    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
210    public static final String ACTION_BLUETOOTH_SETTINGS =
211            "android.settings.BLUETOOTH_SETTINGS";
212
213    /**
214     * Activity Action: Show settings to allow configuration of date and time.
215     * <p>
216     * In some cases, a matching Activity may not exist, so ensure you
217     * safeguard against this.
218     * <p>
219     * Input: Nothing.
220     * <p>
221     * Output: Nothing.
222     */
223    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
224    public static final String ACTION_DATE_SETTINGS =
225            "android.settings.DATE_SETTINGS";
226
227    /**
228     * Activity Action: Show settings to allow configuration of sound and volume.
229     * <p>
230     * In some cases, a matching Activity may not exist, so ensure you
231     * safeguard against this.
232     * <p>
233     * Input: Nothing.
234     * <p>
235     * Output: Nothing.
236     */
237    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
238    public static final String ACTION_SOUND_SETTINGS =
239            "android.settings.SOUND_SETTINGS";
240
241    /**
242     * Activity Action: Show settings to allow configuration of display.
243     * <p>
244     * In some cases, a matching Activity may not exist, so ensure you
245     * safeguard against this.
246     * <p>
247     * Input: Nothing.
248     * <p>
249     * Output: Nothing.
250     */
251    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
252    public static final String ACTION_DISPLAY_SETTINGS =
253            "android.settings.DISPLAY_SETTINGS";
254
255    /**
256     * Activity Action: Show settings to allow configuration of locale.
257     * <p>
258     * In some cases, a matching Activity may not exist, so ensure you
259     * safeguard against this.
260     * <p>
261     * Input: Nothing.
262     * <p>
263     * Output: Nothing.
264     */
265    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
266    public static final String ACTION_LOCALE_SETTINGS =
267            "android.settings.LOCALE_SETTINGS";
268
269    /**
270     * Activity Action: Show settings to configure input methods, in particular
271     * allowing the user to enable input methods.
272     * <p>
273     * In some cases, a matching Activity may not exist, so ensure you
274     * safeguard against this.
275     * <p>
276     * Input: Nothing.
277     * <p>
278     * Output: Nothing.
279     */
280    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
281    public static final String ACTION_INPUT_METHOD_SETTINGS =
282            "android.settings.INPUT_METHOD_SETTINGS";
283
284    /**
285     * Activity Action: Show settings to manage the user input dictionary.
286     * <p>
287     * In some cases, a matching Activity may not exist, so ensure you
288     * safeguard against this.
289     * <p>
290     * Input: Nothing.
291     * <p>
292     * Output: Nothing.
293     */
294    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
295    public static final String ACTION_USER_DICTIONARY_SETTINGS =
296            "android.settings.USER_DICTIONARY_SETTINGS";
297
298    /**
299     * Activity Action: Show settings to allow configuration of application-related settings.
300     * <p>
301     * In some cases, a matching Activity may not exist, so ensure you
302     * safeguard against this.
303     * <p>
304     * Input: Nothing.
305     * <p>
306     * Output: Nothing.
307     */
308    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
309    public static final String ACTION_APPLICATION_SETTINGS =
310            "android.settings.APPLICATION_SETTINGS";
311
312    /**
313     * Activity Action: Show settings to allow configuration of application
314     * development-related settings.
315     * <p>
316     * In some cases, a matching Activity may not exist, so ensure you safeguard
317     * against this.
318     * <p>
319     * Input: Nothing.
320     * <p>
321     * Output: Nothing.
322     */
323    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
324    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
325            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
326
327    /**
328     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
329     * <p>
330     * In some cases, a matching Activity may not exist, so ensure you
331     * safeguard against this.
332     * <p>
333     * Input: Nothing.
334     * <p>
335     * Output: Nothing.
336     */
337    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
338    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
339            "android.settings.QUICK_LAUNCH_SETTINGS";
340
341    /**
342     * Activity Action: Show settings to manage installed applications.
343     * <p>
344     * In some cases, a matching Activity may not exist, so ensure you
345     * safeguard against this.
346     * <p>
347     * Input: Nothing.
348     * <p>
349     * Output: Nothing.
350     */
351    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
352    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
353            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
354
355    /**
356     * Activity Action: Show settings for system update functionality.
357     * <p>
358     * In some cases, a matching Activity may not exist, so ensure you
359     * safeguard against this.
360     * <p>
361     * Input: Nothing.
362     * <p>
363     * Output: Nothing.
364     *
365     * @hide
366     */
367    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
368    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
369            "android.settings.SYSTEM_UPDATE_SETTINGS";
370
371    /**
372     * Activity Action: Show settings to allow configuration of sync settings.
373     * <p>
374     * In some cases, a matching Activity may not exist, so ensure you
375     * safeguard against this.
376     * <p>
377     * Input: Nothing.
378     * <p>
379     * Output: Nothing.
380     */
381    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
382    public static final String ACTION_SYNC_SETTINGS =
383            "android.settings.SYNC_SETTINGS";
384
385    /**
386     * Activity Action: Show settings for selecting the network operator.
387     * <p>
388     * In some cases, a matching Activity may not exist, so ensure you
389     * safeguard against this.
390     * <p>
391     * Input: Nothing.
392     * <p>
393     * Output: Nothing.
394     */
395    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
396    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
397            "android.settings.NETWORK_OPERATOR_SETTINGS";
398
399    /**
400     * Activity Action: Show settings for selection of 2G/3G.
401     * <p>
402     * In some cases, a matching Activity may not exist, so ensure you
403     * safeguard against this.
404     * <p>
405     * Input: Nothing.
406     * <p>
407     * Output: Nothing.
408     */
409    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
410    public static final String ACTION_DATA_ROAMING_SETTINGS =
411            "android.settings.DATA_ROAMING_SETTINGS";
412
413    /**
414     * Activity Action: Show settings for internal storage.
415     * <p>
416     * In some cases, a matching Activity may not exist, so ensure you
417     * safeguard against this.
418     * <p>
419     * Input: Nothing.
420     * <p>
421     * Output: Nothing.
422     */
423    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
424    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
425            "android.settings.INTERNAL_STORAGE_SETTINGS";
426    /**
427     * Activity Action: Show settings for memory card storage.
428     * <p>
429     * In some cases, a matching Activity may not exist, so ensure you
430     * safeguard against this.
431     * <p>
432     * Input: Nothing.
433     * <p>
434     * Output: Nothing.
435     */
436    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
437    public static final String ACTION_MEMORY_CARD_SETTINGS =
438            "android.settings.MEMORY_CARD_SETTINGS";
439
440    /**
441     * Activity Action: Show settings for global search.
442     * <p>
443     * In some cases, a matching Activity may not exist, so ensure you
444     * safeguard against this.
445     * <p>
446     * Input: Nothing.
447     * <p>
448     * Output: Nothing
449     */
450    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
451    public static final String ACTION_SEARCH_SETTINGS =
452        "android.search.action.SEARCH_SETTINGS";
453
454    /**
455     * Activity Action: Show general device information settings (serial
456     * number, software version, phone number, etc.).
457     * <p>
458     * In some cases, a matching Activity may not exist, so ensure you
459     * safeguard against this.
460     * <p>
461     * Input: Nothing.
462     * <p>
463     * Output: Nothing
464     */
465    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
466    public static final String ACTION_DEVICE_INFO_SETTINGS =
467        "android.settings.DEVICE_INFO_SETTINGS";
468
469    // End of Intent actions for Settings
470
471    private static final String JID_RESOURCE_PREFIX = "android";
472
473    public static final String AUTHORITY = "settings";
474
475    private static final String TAG = "Settings";
476    private static final boolean LOCAL_LOGV = Config.LOGV || false;
477
478    public static class SettingNotFoundException extends AndroidException {
479        public SettingNotFoundException(String msg) {
480            super(msg);
481        }
482    }
483
484    /**
485     * Common base for tables of name/value settings.
486     */
487    public static class NameValueTable implements BaseColumns {
488        public static final String NAME = "name";
489        public static final String VALUE = "value";
490
491        protected static boolean putString(ContentResolver resolver, Uri uri,
492                String name, String value) {
493            // The database will take care of replacing duplicates.
494            try {
495                ContentValues values = new ContentValues();
496                values.put(NAME, name);
497                values.put(VALUE, value);
498                resolver.insert(uri, values);
499                return true;
500            } catch (SQLException e) {
501                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
502                return false;
503            }
504        }
505
506        public static Uri getUriFor(Uri uri, String name) {
507            return Uri.withAppendedPath(uri, name);
508        }
509    }
510
511    private static class NameValueCache {
512        private final String mVersionSystemProperty;
513        private final Uri mUri;
514
515        // Must synchronize(mValues) to access mValues and mValuesVersion.
516        private final HashMap<String, String> mValues = new HashMap<String, String>();
517        private long mValuesVersion = 0;
518
519        public NameValueCache(String versionSystemProperty, Uri uri) {
520            mVersionSystemProperty = versionSystemProperty;
521            mUri = uri;
522        }
523
524        public String getString(ContentResolver cr, String name) {
525            long newValuesVersion = SystemProperties.getLong(mVersionSystemProperty, 0);
526
527            synchronized (mValues) {
528                if (mValuesVersion != newValuesVersion) {
529                    if (LOCAL_LOGV) {
530                        Log.v(TAG, "invalidate [" + mUri.getLastPathSegment() + "]: current " +
531                                newValuesVersion + " != cached " + mValuesVersion);
532                    }
533
534                    mValues.clear();
535                    mValuesVersion = newValuesVersion;
536                }
537
538                if (mValues.containsKey(name)) {
539                    return mValues.get(name);  // Could be null, that's OK -- negative caching
540                }
541            }
542
543            Cursor c = null;
544            try {
545                c = cr.query(mUri, new String[] { Settings.NameValueTable.VALUE },
546                        Settings.NameValueTable.NAME + "=?", new String[]{name}, null);
547                if (c == null) {
548                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
549                    return null;
550                }
551
552                String value = c.moveToNext() ? c.getString(0) : null;
553                synchronized (mValues) {
554                    mValues.put(name, value);
555                }
556                if (LOCAL_LOGV) {
557                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
558                            name + " = " + (value == null ? "(null)" : value));
559                }
560                return value;
561            } catch (SQLException e) {
562                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
563                return null;  // Return null, but don't cache it.
564            } finally {
565                if (c != null) c.close();
566            }
567        }
568    }
569
570    /**
571     * System settings, containing miscellaneous system preferences.  This
572     * table holds simple name/value pairs.  There are convenience
573     * functions for accessing individual settings entries.
574     */
575    public static final class System extends NameValueTable {
576        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_system_version";
577
578        private static volatile NameValueCache mNameValueCache = null;
579
580        private static final HashSet<String> MOVED_TO_SECURE;
581        static {
582            MOVED_TO_SECURE = new HashSet<String>(30);
583            MOVED_TO_SECURE.add(Secure.ADB_ENABLED);
584            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
585            MOVED_TO_SECURE.add(Secure.BLUETOOTH_ON);
586            MOVED_TO_SECURE.add(Secure.DATA_ROAMING);
587            MOVED_TO_SECURE.add(Secure.DEVICE_PROVISIONED);
588            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
589            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
590            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
591            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
592            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
593            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
594            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
595            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
596            MOVED_TO_SECURE.add(Secure.USB_MASS_STORAGE_ENABLED);
597            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
598            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
599            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
600            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
601            MOVED_TO_SECURE.add(Secure.WIFI_ON);
602            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
603            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
604            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
605            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
606            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
607            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
608            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
609            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
610            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
611            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
612            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
613        }
614
615        /**
616         * Look up a name in the database.
617         * @param resolver to access the database with
618         * @param name to look up in the table
619         * @return the corresponding value, or null if not present
620         */
621        public synchronized static String getString(ContentResolver resolver, String name) {
622            if (MOVED_TO_SECURE.contains(name)) {
623                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
624                        + " to android.provider.Settings.Secure, returning read-only value.");
625                return Secure.getString(resolver, name);
626            }
627            if (mNameValueCache == null) {
628                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
629            }
630            return mNameValueCache.getString(resolver, name);
631        }
632
633        /**
634         * Store a name/value pair into the database.
635         * @param resolver to access the database with
636         * @param name to store
637         * @param value to associate with the name
638         * @return true if the value was set, false on database errors
639         */
640        public static boolean putString(ContentResolver resolver, String name, String value) {
641            if (MOVED_TO_SECURE.contains(name)) {
642                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
643                        + " to android.provider.Settings.Secure, value is unchanged.");
644                return false;
645            }
646            return putString(resolver, CONTENT_URI, name, value);
647        }
648
649        /**
650         * Construct the content URI for a particular name/value pair,
651         * useful for monitoring changes with a ContentObserver.
652         * @param name to look up in the table
653         * @return the corresponding content URI, or null if not present
654         */
655        public static Uri getUriFor(String name) {
656            if (MOVED_TO_SECURE.contains(name)) {
657                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
658                    + " to android.provider.Settings.Secure, returning Secure URI.");
659                return Secure.getUriFor(Secure.CONTENT_URI, name);
660            }
661            return getUriFor(CONTENT_URI, name);
662        }
663
664        /**
665         * Convenience function for retrieving a single system settings value
666         * as an integer.  Note that internally setting values are always
667         * stored as strings; this function converts the string to an integer
668         * for you.  The default value will be returned if the setting is
669         * not defined or not an integer.
670         *
671         * @param cr The ContentResolver to access.
672         * @param name The name of the setting to retrieve.
673         * @param def Value to return if the setting is not defined.
674         *
675         * @return The setting's current value, or 'def' if it is not defined
676         * or not a valid integer.
677         */
678        public static int getInt(ContentResolver cr, String name, int def) {
679            String v = getString(cr, name);
680            try {
681                return v != null ? Integer.parseInt(v) : def;
682            } catch (NumberFormatException e) {
683                return def;
684            }
685        }
686
687        /**
688         * Convenience function for retrieving a single system settings value
689         * as an integer.  Note that internally setting values are always
690         * stored as strings; this function converts the string to an integer
691         * for you.
692         * <p>
693         * This version does not take a default value.  If the setting has not
694         * been set, or the string value is not a number,
695         * it throws {@link SettingNotFoundException}.
696         *
697         * @param cr The ContentResolver to access.
698         * @param name The name of the setting to retrieve.
699         *
700         * @throws SettingNotFoundException Thrown if a setting by the given
701         * name can't be found or the setting value is not an integer.
702         *
703         * @return The setting's current value.
704         */
705        public static int getInt(ContentResolver cr, String name)
706                throws SettingNotFoundException {
707            String v = getString(cr, name);
708            try {
709                return Integer.parseInt(v);
710            } catch (NumberFormatException e) {
711                throw new SettingNotFoundException(name);
712            }
713        }
714
715        /**
716         * Convenience function for updating a single settings value as an
717         * integer. This will either create a new entry in the table if the
718         * given name does not exist, or modify the value of the existing row
719         * with that name.  Note that internally setting values are always
720         * stored as strings, so this function converts the given value to a
721         * string before storing it.
722         *
723         * @param cr The ContentResolver to access.
724         * @param name The name of the setting to modify.
725         * @param value The new value for the setting.
726         * @return true if the value was set, false on database errors
727         */
728        public static boolean putInt(ContentResolver cr, String name, int value) {
729            return putString(cr, name, Integer.toString(value));
730        }
731
732        /**
733         * Convenience function for retrieving a single system settings value
734         * as a {@code long}.  Note that internally setting values are always
735         * stored as strings; this function converts the string to a {@code long}
736         * for you.  The default value will be returned if the setting is
737         * not defined or not a {@code long}.
738         *
739         * @param cr The ContentResolver to access.
740         * @param name The name of the setting to retrieve.
741         * @param def Value to return if the setting is not defined.
742         *
743         * @return The setting's current value, or 'def' if it is not defined
744         * or not a valid {@code long}.
745         */
746        public static long getLong(ContentResolver cr, String name, long def) {
747            String valString = getString(cr, name);
748            long value;
749            try {
750                value = valString != null ? Long.parseLong(valString) : def;
751            } catch (NumberFormatException e) {
752                value = def;
753            }
754            return value;
755        }
756
757        /**
758         * Convenience function for retrieving a single system settings value
759         * as a {@code long}.  Note that internally setting values are always
760         * stored as strings; this function converts the string to a {@code long}
761         * for you.
762         * <p>
763         * This version does not take a default value.  If the setting has not
764         * been set, or the string value is not a number,
765         * it throws {@link SettingNotFoundException}.
766         *
767         * @param cr The ContentResolver to access.
768         * @param name The name of the setting to retrieve.
769         *
770         * @return The setting's current value.
771         * @throws SettingNotFoundException Thrown if a setting by the given
772         * name can't be found or the setting value is not an integer.
773         */
774        public static long getLong(ContentResolver cr, String name)
775                throws SettingNotFoundException {
776            String valString = getString(cr, name);
777            try {
778                return Long.parseLong(valString);
779            } catch (NumberFormatException e) {
780                throw new SettingNotFoundException(name);
781            }
782        }
783
784        /**
785         * Convenience function for updating a single settings value as a long
786         * integer. This will either create a new entry in the table if the
787         * given name does not exist, or modify the value of the existing row
788         * with that name.  Note that internally setting values are always
789         * stored as strings, so this function converts the given value to a
790         * string before storing it.
791         *
792         * @param cr The ContentResolver to access.
793         * @param name The name of the setting to modify.
794         * @param value The new value for the setting.
795         * @return true if the value was set, false on database errors
796         */
797        public static boolean putLong(ContentResolver cr, String name, long value) {
798            return putString(cr, name, Long.toString(value));
799        }
800
801        /**
802         * Convenience function for retrieving a single system settings value
803         * as a floating point number.  Note that internally setting values are
804         * always stored as strings; this function converts the string to an
805         * float for you. The default value will be returned if the setting
806         * is not defined or not a valid float.
807         *
808         * @param cr The ContentResolver to access.
809         * @param name The name of the setting to retrieve.
810         * @param def Value to return if the setting is not defined.
811         *
812         * @return The setting's current value, or 'def' if it is not defined
813         * or not a valid float.
814         */
815        public static float getFloat(ContentResolver cr, String name, float def) {
816            String v = getString(cr, name);
817            try {
818                return v != null ? Float.parseFloat(v) : def;
819            } catch (NumberFormatException e) {
820                return def;
821            }
822        }
823
824        /**
825         * Convenience function for retrieving a single system settings value
826         * as a float.  Note that internally setting values are always
827         * stored as strings; this function converts the string to a float
828         * for you.
829         * <p>
830         * This version does not take a default value.  If the setting has not
831         * been set, or the string value is not a number,
832         * it throws {@link SettingNotFoundException}.
833         *
834         * @param cr The ContentResolver to access.
835         * @param name The name of the setting to retrieve.
836         *
837         * @throws SettingNotFoundException Thrown if a setting by the given
838         * name can't be found or the setting value is not a float.
839         *
840         * @return The setting's current value.
841         */
842        public static float getFloat(ContentResolver cr, String name)
843                throws SettingNotFoundException {
844            String v = getString(cr, name);
845            try {
846                return Float.parseFloat(v);
847            } catch (NumberFormatException e) {
848                throw new SettingNotFoundException(name);
849            }
850        }
851
852        /**
853         * Convenience function for updating a single settings value as a
854         * floating point number. This will either create a new entry in the
855         * table if the given name does not exist, or modify the value of the
856         * existing row with that name.  Note that internally setting values
857         * are always stored as strings, so this function converts the given
858         * value to a string before storing it.
859         *
860         * @param cr The ContentResolver to access.
861         * @param name The name of the setting to modify.
862         * @param value The new value for the setting.
863         * @return true if the value was set, false on database errors
864         */
865        public static boolean putFloat(ContentResolver cr, String name, float value) {
866            return putString(cr, name, Float.toString(value));
867        }
868
869        /**
870         * Convenience function to read all of the current
871         * configuration-related settings into a
872         * {@link Configuration} object.
873         *
874         * @param cr The ContentResolver to access.
875         * @param outConfig Where to place the configuration settings.
876         */
877        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
878            outConfig.fontScale = Settings.System.getFloat(
879                cr, FONT_SCALE, outConfig.fontScale);
880            if (outConfig.fontScale < 0) {
881                outConfig.fontScale = 1;
882            }
883        }
884
885        /**
886         * Convenience function to write a batch of configuration-related
887         * settings from a {@link Configuration} object.
888         *
889         * @param cr The ContentResolver to access.
890         * @param config The settings to write.
891         * @return true if the values were set, false on database errors
892         */
893        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
894            return Settings.System.putFloat(cr, FONT_SCALE, config.fontScale);
895        }
896
897        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
898            return getInt(cr, SHOW_GTALK_SERVICE_STATUS, 0) != 0;
899        }
900
901        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
902            putInt(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0);
903        }
904
905        /**
906         * The content:// style URL for this table
907         */
908        public static final Uri CONTENT_URI =
909            Uri.parse("content://" + AUTHORITY + "/system");
910
911        /**
912         * Whether we keep the device on while the device is plugged in.
913         * Supported values are:
914         * <ul>
915         * <li>{@code 0} to never stay on while plugged in</li>
916         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
917         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
918         * </ul>
919         * These values can be OR-ed together.
920         */
921        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
922
923        /**
924         * What happens when the user presses the end call button if they're not
925         * on a call.<br/>
926         * <b>Values:</b><br/>
927         * 0 - The end button does nothing.<br/>
928         * 1 - The end button goes to the home screen.<br/>
929         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
930         * 3 - The end button goes to the home screen.  If the user is already on the
931         * home screen, it puts the device to sleep.
932         */
933        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
934
935        /**
936         * Whether Airplane Mode is on.
937         */
938        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
939
940        /**
941         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
942         */
943        public static final String RADIO_BLUETOOTH = "bluetooth";
944
945        /**
946         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
947         */
948        public static final String RADIO_WIFI = "wifi";
949
950        /**
951         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
952         */
953        public static final String RADIO_CELL = "cell";
954
955        /**
956         * A comma separated list of radios that need to be disabled when airplane mode
957         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
958         * included in the comma separated list.
959         */
960        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
961
962        /**
963         * A comma separated list of radios that should to be disabled when airplane mode
964         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
965         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
966         * will be turned off when entering airplane mode, but the user will be able to reenable
967         * Wifi in the Settings app.
968         *
969         * {@hide}
970         */
971        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
972
973        /**
974         * The policy for deciding when Wi-Fi should go to sleep (which will in
975         * turn switch to using the mobile data as an Internet connection).
976         * <p>
977         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
978         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
979         * {@link #WIFI_SLEEP_POLICY_NEVER}.
980         */
981        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
982
983        /**
984         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
985         * policy, which is to sleep shortly after the turning off
986         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
987         */
988        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
989
990        /**
991         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
992         * the device is on battery, and never go to sleep when the device is
993         * plugged in.
994         */
995        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
996
997        /**
998         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
999         */
1000        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
1001
1002        /**
1003         * Whether to use static IP and other static network attributes.
1004         * <p>
1005         * Set to 1 for true and 0 for false.
1006         */
1007        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
1008
1009        /**
1010         * The static IP address.
1011         * <p>
1012         * Example: "192.168.1.51"
1013         */
1014        public static final String WIFI_STATIC_IP = "wifi_static_ip";
1015
1016        /**
1017         * If using static IP, the gateway's IP address.
1018         * <p>
1019         * Example: "192.168.1.1"
1020         */
1021        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
1022
1023        /**
1024         * If using static IP, the net mask.
1025         * <p>
1026         * Example: "255.255.255.0"
1027         */
1028        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
1029
1030        /**
1031         * If using static IP, the primary DNS's IP address.
1032         * <p>
1033         * Example: "192.168.1.1"
1034         */
1035        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
1036
1037        /**
1038         * If using static IP, the secondary DNS's IP address.
1039         * <p>
1040         * Example: "192.168.1.2"
1041         */
1042        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
1043
1044        /**
1045         * The number of radio channels that are allowed in the local
1046         * 802.11 regulatory domain.
1047         * @hide
1048         */
1049        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
1050
1051        /**
1052         * Determines whether remote devices may discover and/or connect to
1053         * this device.
1054         * <P>Type: INT</P>
1055         * 2 -- discoverable and connectable
1056         * 1 -- connectable but not discoverable
1057         * 0 -- neither connectable nor discoverable
1058         */
1059        public static final String BLUETOOTH_DISCOVERABILITY =
1060            "bluetooth_discoverability";
1061
1062        /**
1063         * Bluetooth discoverability timeout.  If this value is nonzero, then
1064         * Bluetooth becomes discoverable for a certain number of seconds,
1065         * after which is becomes simply connectable.  The value is in seconds.
1066         */
1067        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
1068            "bluetooth_discoverability_timeout";
1069
1070        /**
1071         * Whether autolock is enabled (0 = false, 1 = true)
1072         */
1073        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
1074
1075        /**
1076         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
1077         */
1078        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
1079
1080        /**
1081         * Whether lock pattern will vibrate as user enters (0 = false, 1 = true)
1082         */
1083        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
1084            "lock_pattern_tactile_feedback_enabled";
1085
1086
1087        /**
1088         * A formatted string of the next alarm that is set, or the empty string
1089         * if there is no alarm set.
1090         */
1091        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
1092
1093        /**
1094         * Scaling factor for fonts, float.
1095         */
1096        public static final String FONT_SCALE = "font_scale";
1097
1098        /**
1099         * Name of an application package to be debugged.
1100         */
1101        public static final String DEBUG_APP = "debug_app";
1102
1103        /**
1104         * If 1, when launching DEBUG_APP it will wait for the debugger before
1105         * starting user code.  If 0, it will run normally.
1106         */
1107        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
1108
1109        /**
1110         * Whether or not to dim the screen. 0=no  1=yes
1111         */
1112        public static final String DIM_SCREEN = "dim_screen";
1113
1114        /**
1115         * The timeout before the screen turns off.
1116         */
1117        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
1118
1119        /**
1120         * If 0, the compatibility mode is off for all applications.
1121         * If 1, older applications run under compatibility mode.
1122         * TODO: remove this settings before code freeze (bug/1907571)
1123         * @hide
1124         */
1125        public static final String COMPATIBILITY_MODE = "compatibility_mode";
1126
1127        /**
1128         * The screen backlight brightness between 0 and 255.
1129         */
1130        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
1131
1132        /**
1133         * Control whether to enable automatic brightness mode.
1134         */
1135        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
1136
1137        /**
1138         * SCREEN_BRIGHTNESS_MODE value for manual mode.
1139         */
1140        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
1141
1142        /**
1143         * SCREEN_BRIGHTNESS_MODE value for manual mode.
1144         */
1145        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
1146
1147        /**
1148         * Control whether the process CPU usage meter should be shown.
1149         */
1150        public static final String SHOW_PROCESSES = "show_processes";
1151
1152        /**
1153         * If 1, the activity manager will aggressively finish activities and
1154         * processes as soon as they are no longer needed.  If 0, the normal
1155         * extended lifetime is used.
1156         */
1157        public static final String ALWAYS_FINISH_ACTIVITIES =
1158                "always_finish_activities";
1159
1160
1161        /**
1162         * Ringer mode. This is used internally, changing this value will not
1163         * change the ringer mode. See AudioManager.
1164         */
1165        public static final String MODE_RINGER = "mode_ringer";
1166
1167        /**
1168         * Determines which streams are affected by ringer mode changes. The
1169         * stream type's bit should be set to 1 if it should be muted when going
1170         * into an inaudible ringer mode.
1171         */
1172        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
1173
1174         /**
1175          * Determines which streams are affected by mute. The
1176          * stream type's bit should be set to 1 if it should be muted when a mute request
1177          * is received.
1178          */
1179         public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
1180
1181        /**
1182         * Whether vibrate is on for different events. This is used internally,
1183         * changing this value will not change the vibrate. See AudioManager.
1184         */
1185        public static final String VIBRATE_ON = "vibrate_on";
1186
1187        /**
1188         * Ringer volume. This is used internally, changing this value will not
1189         * change the volume. See AudioManager.
1190         */
1191        public static final String VOLUME_RING = "volume_ring";
1192
1193        /**
1194         * System/notifications volume. This is used internally, changing this
1195         * value will not change the volume. See AudioManager.
1196         */
1197        public static final String VOLUME_SYSTEM = "volume_system";
1198
1199        /**
1200         * Voice call volume. This is used internally, changing this value will
1201         * not change the volume. See AudioManager.
1202         */
1203        public static final String VOLUME_VOICE = "volume_voice";
1204
1205        /**
1206         * Music/media/gaming volume. This is used internally, changing this
1207         * value will not change the volume. See AudioManager.
1208         */
1209        public static final String VOLUME_MUSIC = "volume_music";
1210
1211        /**
1212         * Alarm volume. This is used internally, changing this
1213         * value will not change the volume. See AudioManager.
1214         */
1215        public static final String VOLUME_ALARM = "volume_alarm";
1216
1217        /**
1218         * Notification volume. This is used internally, changing this
1219         * value will not change the volume. See AudioManager.
1220         */
1221        public static final String VOLUME_NOTIFICATION = "volume_notification";
1222
1223        /**
1224         * Bluetooth Headset volume. This is used internally, changing this value will
1225         * not change the volume. See AudioManager.
1226         */
1227        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
1228
1229        /**
1230         * Whether the notifications should use the ring volume (value of 1) or
1231         * a separate notification volume (value of 0). In most cases, users
1232         * will have this enabled so the notification and ringer volumes will be
1233         * the same. However, power users can disable this and use the separate
1234         * notification volume control.
1235         * <p>
1236         * Note: This is a one-off setting that will be removed in the future
1237         * when there is profile support. For this reason, it is kept hidden
1238         * from the public APIs.
1239         *
1240         * @hide
1241         */
1242        public static final String NOTIFICATIONS_USE_RING_VOLUME =
1243            "notifications_use_ring_volume";
1244
1245        /**
1246         * The mapping of stream type (integer) to its setting.
1247         */
1248        public static final String[] VOLUME_SETTINGS = {
1249            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
1250            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
1251        };
1252
1253        /**
1254         * Appended to various volume related settings to record the previous
1255         * values before they the settings were affected by a silent/vibrate
1256         * ringer mode change.
1257         */
1258        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
1259
1260        /**
1261         * Persistent store for the system-wide default ringtone URI.
1262         * <p>
1263         * If you need to play the default ringtone at any given time, it is recommended
1264         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
1265         * to the set default ringtone at the time of playing.
1266         *
1267         * @see #DEFAULT_RINGTONE_URI
1268         */
1269        public static final String RINGTONE = "ringtone";
1270
1271        /**
1272         * A {@link Uri} that will point to the current default ringtone at any
1273         * given time.
1274         * <p>
1275         * If the current default ringtone is in the DRM provider and the caller
1276         * does not have permission, the exception will be a
1277         * FileNotFoundException.
1278         */
1279        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
1280
1281        /**
1282         * Persistent store for the system-wide default notification sound.
1283         *
1284         * @see #RINGTONE
1285         * @see #DEFAULT_NOTIFICATION_URI
1286         */
1287        public static final String NOTIFICATION_SOUND = "notification_sound";
1288
1289        /**
1290         * A {@link Uri} that will point to the current default notification
1291         * sound at any given time.
1292         *
1293         * @see #DEFAULT_RINGTONE_URI
1294         */
1295        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
1296
1297        /**
1298         * Persistent store for the system-wide default alarm alert.
1299         *
1300         * @see #RINGTONE
1301         * @see #DEFAULT_ALARM_ALERT_URI
1302         */
1303        public static final String ALARM_ALERT = "alarm_alert";
1304
1305        /**
1306         * A {@link Uri} that will point to the current default alarm alert at
1307         * any given time.
1308         *
1309         * @see #DEFAULT_ALARM_ALERT_URI
1310         */
1311        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
1312
1313        /**
1314         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
1315         */
1316        public static final String TEXT_AUTO_REPLACE = "auto_replace";
1317
1318        /**
1319         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
1320         */
1321        public static final String TEXT_AUTO_CAPS = "auto_caps";
1322
1323        /**
1324         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
1325         * feature converts two spaces to a "." and space.
1326         */
1327        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
1328
1329        /**
1330         * Setting to showing password characters in text editors. 1 = On, 0 = Off
1331         */
1332        public static final String TEXT_SHOW_PASSWORD = "show_password";
1333
1334        public static final String SHOW_GTALK_SERVICE_STATUS =
1335                "SHOW_GTALK_SERVICE_STATUS";
1336
1337        /**
1338         * Name of activity to use for wallpaper on the home screen.
1339         */
1340        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
1341
1342        /**
1343         * Value to specify if the user prefers the date, time and time zone
1344         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
1345         */
1346        public static final String AUTO_TIME = "auto_time";
1347
1348        /**
1349         * Display times as 12 or 24 hours
1350         *   12
1351         *   24
1352         */
1353        public static final String TIME_12_24 = "time_12_24";
1354
1355        /**
1356         * Date format string
1357         *   mm/dd/yyyy
1358         *   dd/mm/yyyy
1359         *   yyyy/mm/dd
1360         */
1361        public static final String DATE_FORMAT = "date_format";
1362
1363        /**
1364         * Whether the setup wizard has been run before (on first boot), or if
1365         * it still needs to be run.
1366         *
1367         * nonzero = it has been run in the past
1368         * 0 = it has not been run in the past
1369         */
1370        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
1371
1372        /**
1373         * Scaling factor for normal window animations. Setting to 0 will disable window
1374         * animations.
1375         */
1376        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
1377
1378        /**
1379         * Scaling factor for activity transition animations. Setting to 0 will disable window
1380         * animations.
1381         */
1382        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
1383
1384        /**
1385         * Scaling factor for normal window animations. Setting to 0 will disable window
1386         * animations.
1387         * @hide
1388         */
1389        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
1390
1391        /**
1392         * Control whether the accelerometer will be used to change screen
1393         * orientation.  If 0, it will not be used unless explicitly requested
1394         * by the application; if 1, it will be used by default unless explicitly
1395         * disabled by the application.
1396         */
1397        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
1398
1399        /**
1400         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
1401         * boolean (1 or 0).
1402         */
1403        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
1404
1405        /**
1406         * CDMA only settings
1407         * DTMF tone type played by the dialer when dialing.
1408         *                 0 = Normal
1409         *                 1 = Long
1410         * @hide
1411         */
1412        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
1413
1414        /**
1415         * CDMA only settings
1416         * Emergency Tone  0 = Off
1417         *                 1 = Alert
1418         *                 2 = Vibrate
1419         * @hide
1420         */
1421        public static final String EMERGENCY_TONE = "emergency_tone";
1422
1423        /**
1424         * CDMA only settings
1425         * Whether the auto retry is enabled. The value is
1426         * boolean (1 or 0).
1427         * @hide
1428         */
1429        public static final String CALL_AUTO_RETRY = "call_auto_retry";
1430
1431        /**
1432         * Whether the hearing aid is enabled. The value is
1433         * boolean (1 or 0).
1434         * @hide
1435         */
1436        public static final String HEARING_AID = "hearing_aid";
1437
1438        /**
1439         * CDMA only settings
1440         * TTY Mode
1441         * 0 = OFF
1442         * 1 = FULL
1443         * 2 = VCO
1444         * 3 = HCO
1445         * @hide
1446         */
1447        public static final String TTY_MODE = "tty_mode";
1448
1449        /**
1450         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
1451         * boolean (1 or 0).
1452         */
1453        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
1454
1455        /**
1456         * Whether the haptic feedback (long presses, ...) are enabled. The value is
1457         * boolean (1 or 0).
1458         */
1459        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
1460
1461        /**
1462         * Whether live web suggestions while the user types into search dialogs are
1463         * enabled. Browsers and other search UIs should respect this, as it allows
1464         * a user to avoid sending partial queries to a search engine, if it poses
1465         * any privacy concern. The value is boolean (1 or 0).
1466         */
1467        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
1468
1469        /**
1470         * Whether the notification LED should repeatedly flash when a notification is
1471         * pending. The value is boolean (1 or 0).
1472         * @hide
1473         */
1474        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
1475
1476        /**
1477         * Let user pick default install location.
1478         * @hide
1479         */
1480        public static final String SET_INSTALL_LOCATION = "set_install_location";
1481
1482        /**
1483         * Default install location value.
1484         * 0 = auto, let system decide
1485         * 1 = internal
1486         * 2 = sdcard
1487         * @hide
1488         */
1489        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
1490
1491        /**
1492         * Settings to backup. This is here so that it's in the same place as the settings
1493         * keys and easy to update.
1494         * @hide
1495         */
1496        public static final String[] SETTINGS_TO_BACKUP = {
1497            STAY_ON_WHILE_PLUGGED_IN,
1498            WIFI_SLEEP_POLICY,
1499            WIFI_USE_STATIC_IP,
1500            WIFI_STATIC_IP,
1501            WIFI_STATIC_GATEWAY,
1502            WIFI_STATIC_NETMASK,
1503            WIFI_STATIC_DNS1,
1504            WIFI_STATIC_DNS2,
1505            BLUETOOTH_DISCOVERABILITY,
1506            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
1507            DIM_SCREEN,
1508            SCREEN_OFF_TIMEOUT,
1509            SCREEN_BRIGHTNESS,
1510            SCREEN_BRIGHTNESS_MODE,
1511            VIBRATE_ON,
1512            NOTIFICATIONS_USE_RING_VOLUME,
1513            MODE_RINGER,
1514            MODE_RINGER_STREAMS_AFFECTED,
1515            MUTE_STREAMS_AFFECTED,
1516            VOLUME_VOICE,
1517            VOLUME_SYSTEM,
1518            VOLUME_RING,
1519            VOLUME_MUSIC,
1520            VOLUME_ALARM,
1521            VOLUME_NOTIFICATION,
1522            VOLUME_BLUETOOTH_SCO,
1523            VOLUME_VOICE + APPEND_FOR_LAST_AUDIBLE,
1524            VOLUME_SYSTEM + APPEND_FOR_LAST_AUDIBLE,
1525            VOLUME_RING + APPEND_FOR_LAST_AUDIBLE,
1526            VOLUME_MUSIC + APPEND_FOR_LAST_AUDIBLE,
1527            VOLUME_ALARM + APPEND_FOR_LAST_AUDIBLE,
1528            VOLUME_NOTIFICATION + APPEND_FOR_LAST_AUDIBLE,
1529            VOLUME_BLUETOOTH_SCO + APPEND_FOR_LAST_AUDIBLE,
1530            TEXT_AUTO_REPLACE,
1531            TEXT_AUTO_CAPS,
1532            TEXT_AUTO_PUNCTUATE,
1533            TEXT_SHOW_PASSWORD,
1534            AUTO_TIME,
1535            TIME_12_24,
1536            DATE_FORMAT,
1537            ACCELEROMETER_ROTATION,
1538            DTMF_TONE_WHEN_DIALING,
1539            DTMF_TONE_TYPE_WHEN_DIALING,
1540            EMERGENCY_TONE,
1541            CALL_AUTO_RETRY,
1542            HEARING_AID,
1543            TTY_MODE,
1544            SOUND_EFFECTS_ENABLED,
1545            HAPTIC_FEEDBACK_ENABLED,
1546            SHOW_WEB_SUGGESTIONS,
1547            NOTIFICATION_LIGHT_PULSE
1548        };
1549
1550        // Settings moved to Settings.Secure
1551
1552        /**
1553         * @deprecated Use {@link android.provider.Settings.Secure#ADB_ENABLED}
1554         * instead
1555         */
1556        @Deprecated
1557        public static final String ADB_ENABLED = Secure.ADB_ENABLED;
1558
1559        /**
1560         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
1561         */
1562        @Deprecated
1563        public static final String ANDROID_ID = Secure.ANDROID_ID;
1564
1565        /**
1566         * @deprecated Use {@link android.provider.Settings.Secure#BLUETOOTH_ON} instead
1567         */
1568        @Deprecated
1569        public static final String BLUETOOTH_ON = Secure.BLUETOOTH_ON;
1570
1571        /**
1572         * @deprecated Use {@link android.provider.Settings.Secure#DATA_ROAMING} instead
1573         */
1574        @Deprecated
1575        public static final String DATA_ROAMING = Secure.DATA_ROAMING;
1576
1577        /**
1578         * @deprecated Use {@link android.provider.Settings.Secure#DEVICE_PROVISIONED} instead
1579         */
1580        @Deprecated
1581        public static final String DEVICE_PROVISIONED = Secure.DEVICE_PROVISIONED;
1582
1583        /**
1584         * @deprecated Use {@link android.provider.Settings.Secure#HTTP_PROXY} instead
1585         */
1586        @Deprecated
1587        public static final String HTTP_PROXY = Secure.HTTP_PROXY;
1588
1589        /**
1590         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
1591         */
1592        @Deprecated
1593        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
1594
1595        /**
1596         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
1597         * instead
1598         */
1599        @Deprecated
1600        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
1601
1602        /**
1603         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
1604         */
1605        @Deprecated
1606        public static final String LOGGING_ID = Secure.LOGGING_ID;
1607
1608        /**
1609         * @deprecated Use {@link android.provider.Settings.Secure#NETWORK_PREFERENCE} instead
1610         */
1611        @Deprecated
1612        public static final String NETWORK_PREFERENCE = Secure.NETWORK_PREFERENCE;
1613
1614        /**
1615         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
1616         * instead
1617         */
1618        @Deprecated
1619        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
1620
1621        /**
1622         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
1623         * instead
1624         */
1625        @Deprecated
1626        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
1627
1628        /**
1629         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
1630         * instead
1631         */
1632        @Deprecated
1633        public static final String PARENTAL_CONTROL_REDIRECT_URL =
1634            Secure.PARENTAL_CONTROL_REDIRECT_URL;
1635
1636        /**
1637         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
1638         */
1639        @Deprecated
1640        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
1641
1642        /**
1643         * @deprecated Use {@link android.provider.Settings.Secure#USB_MASS_STORAGE_ENABLED} instead
1644         */
1645        @Deprecated
1646        public static final String USB_MASS_STORAGE_ENABLED = Secure.USB_MASS_STORAGE_ENABLED;
1647
1648        /**
1649         * @deprecated Use {@link android.provider.Settings.Secure#USE_GOOGLE_MAIL} instead
1650         */
1651        @Deprecated
1652        public static final String USE_GOOGLE_MAIL = Secure.USE_GOOGLE_MAIL;
1653
1654       /**
1655         * @deprecated Use
1656         * {@link android.provider.Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT} instead
1657         */
1658        @Deprecated
1659        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Secure.WIFI_MAX_DHCP_RETRY_COUNT;
1660
1661        /**
1662         * @deprecated Use
1663         * {@link android.provider.Settings.Secure#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
1664         */
1665        @Deprecated
1666        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
1667                Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
1668
1669        /**
1670         * @deprecated Use
1671         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
1672         */
1673        @Deprecated
1674        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1675            Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
1676
1677        /**
1678         * @deprecated Use
1679         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
1680         */
1681        @Deprecated
1682        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1683            Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
1684
1685        /**
1686         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_NUM_OPEN_NETWORKS_KEPT}
1687         * instead
1688         */
1689        @Deprecated
1690        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Secure.WIFI_NUM_OPEN_NETWORKS_KEPT;
1691
1692        /**
1693         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_ON} instead
1694         */
1695        @Deprecated
1696        public static final String WIFI_ON = Secure.WIFI_ON;
1697
1698        /**
1699         * @deprecated Use
1700         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
1701         * instead
1702         */
1703        @Deprecated
1704        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
1705                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
1706
1707        /**
1708         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
1709         */
1710        @Deprecated
1711        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
1712
1713        /**
1714         * @deprecated Use
1715         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
1716         */
1717        @Deprecated
1718        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
1719                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
1720
1721        /**
1722         * @deprecated Use
1723         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
1724         */
1725        @Deprecated
1726        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
1727                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
1728
1729        /**
1730         * @deprecated Use
1731         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
1732         * instead
1733         */
1734        @Deprecated
1735        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
1736                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
1737
1738        /**
1739         * @deprecated Use
1740         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
1741         */
1742        @Deprecated
1743        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
1744            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
1745
1746        /**
1747         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
1748         * instead
1749         */
1750        @Deprecated
1751        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
1752
1753        /**
1754         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ON} instead
1755         */
1756        @Deprecated
1757        public static final String WIFI_WATCHDOG_ON = Secure.WIFI_WATCHDOG_ON;
1758
1759        /**
1760         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
1761         */
1762        @Deprecated
1763        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
1764
1765        /**
1766         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
1767         * instead
1768         */
1769        @Deprecated
1770        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
1771
1772        /**
1773         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
1774         * instead
1775         */
1776        @Deprecated
1777        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
1778            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
1779    }
1780
1781    /**
1782     * Secure system settings, containing system preferences that applications
1783     * can read but are not allowed to write.  These are for preferences that
1784     * the user must explicitly modify through the system UI or specialized
1785     * APIs for those values, not modified directly by applications.
1786     */
1787    public static final class Secure extends NameValueTable {
1788        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_secure_version";
1789
1790        private static volatile NameValueCache mNameValueCache = null;
1791
1792        /**
1793         * Look up a name in the database.
1794         * @param resolver to access the database with
1795         * @param name to look up in the table
1796         * @return the corresponding value, or null if not present
1797         */
1798        public synchronized static String getString(ContentResolver resolver, String name) {
1799            if (mNameValueCache == null) {
1800                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
1801            }
1802            return mNameValueCache.getString(resolver, name);
1803        }
1804
1805        /**
1806         * Store a name/value pair into the database.
1807         * @param resolver to access the database with
1808         * @param name to store
1809         * @param value to associate with the name
1810         * @return true if the value was set, false on database errors
1811         */
1812        public static boolean putString(ContentResolver resolver,
1813                String name, String value) {
1814            return putString(resolver, CONTENT_URI, name, value);
1815        }
1816
1817        /**
1818         * Construct the content URI for a particular name/value pair,
1819         * useful for monitoring changes with a ContentObserver.
1820         * @param name to look up in the table
1821         * @return the corresponding content URI, or null if not present
1822         */
1823        public static Uri getUriFor(String name) {
1824            return getUriFor(CONTENT_URI, name);
1825        }
1826
1827        /**
1828         * Convenience function for retrieving a single secure settings value
1829         * as an integer.  Note that internally setting values are always
1830         * stored as strings; this function converts the string to an integer
1831         * for you.  The default value will be returned if the setting is
1832         * not defined or not an integer.
1833         *
1834         * @param cr The ContentResolver to access.
1835         * @param name The name of the setting to retrieve.
1836         * @param def Value to return if the setting is not defined.
1837         *
1838         * @return The setting's current value, or 'def' if it is not defined
1839         * or not a valid integer.
1840         */
1841        public static int getInt(ContentResolver cr, String name, int def) {
1842            String v = getString(cr, name);
1843            try {
1844                return v != null ? Integer.parseInt(v) : def;
1845            } catch (NumberFormatException e) {
1846                return def;
1847            }
1848        }
1849
1850        /**
1851         * Convenience function for retrieving a single secure settings value
1852         * as an integer.  Note that internally setting values are always
1853         * stored as strings; this function converts the string to an integer
1854         * for you.
1855         * <p>
1856         * This version does not take a default value.  If the setting has not
1857         * been set, or the string value is not a number,
1858         * it throws {@link SettingNotFoundException}.
1859         *
1860         * @param cr The ContentResolver to access.
1861         * @param name The name of the setting to retrieve.
1862         *
1863         * @throws SettingNotFoundException Thrown if a setting by the given
1864         * name can't be found or the setting value is not an integer.
1865         *
1866         * @return The setting's current value.
1867         */
1868        public static int getInt(ContentResolver cr, String name)
1869                throws SettingNotFoundException {
1870            String v = getString(cr, name);
1871            try {
1872                return Integer.parseInt(v);
1873            } catch (NumberFormatException e) {
1874                throw new SettingNotFoundException(name);
1875            }
1876        }
1877
1878        /**
1879         * Convenience function for updating a single settings value as an
1880         * integer. This will either create a new entry in the table if the
1881         * given name does not exist, or modify the value of the existing row
1882         * with that name.  Note that internally setting values are always
1883         * stored as strings, so this function converts the given value to a
1884         * string before storing it.
1885         *
1886         * @param cr The ContentResolver to access.
1887         * @param name The name of the setting to modify.
1888         * @param value The new value for the setting.
1889         * @return true if the value was set, false on database errors
1890         */
1891        public static boolean putInt(ContentResolver cr, String name, int value) {
1892            return putString(cr, name, Integer.toString(value));
1893        }
1894
1895        /**
1896         * Convenience function for retrieving a single secure settings value
1897         * as a {@code long}.  Note that internally setting values are always
1898         * stored as strings; this function converts the string to a {@code long}
1899         * for you.  The default value will be returned if the setting is
1900         * not defined or not a {@code long}.
1901         *
1902         * @param cr The ContentResolver to access.
1903         * @param name The name of the setting to retrieve.
1904         * @param def Value to return if the setting is not defined.
1905         *
1906         * @return The setting's current value, or 'def' if it is not defined
1907         * or not a valid {@code long}.
1908         */
1909        public static long getLong(ContentResolver cr, String name, long def) {
1910            String valString = getString(cr, name);
1911            long value;
1912            try {
1913                value = valString != null ? Long.parseLong(valString) : def;
1914            } catch (NumberFormatException e) {
1915                value = def;
1916            }
1917            return value;
1918        }
1919
1920        /**
1921         * Convenience function for retrieving a single secure settings value
1922         * as a {@code long}.  Note that internally setting values are always
1923         * stored as strings; this function converts the string to a {@code long}
1924         * for you.
1925         * <p>
1926         * This version does not take a default value.  If the setting has not
1927         * been set, or the string value is not a number,
1928         * it throws {@link SettingNotFoundException}.
1929         *
1930         * @param cr The ContentResolver to access.
1931         * @param name The name of the setting to retrieve.
1932         *
1933         * @return The setting's current value.
1934         * @throws SettingNotFoundException Thrown if a setting by the given
1935         * name can't be found or the setting value is not an integer.
1936         */
1937        public static long getLong(ContentResolver cr, String name)
1938                throws SettingNotFoundException {
1939            String valString = getString(cr, name);
1940            try {
1941                return Long.parseLong(valString);
1942            } catch (NumberFormatException e) {
1943                throw new SettingNotFoundException(name);
1944            }
1945        }
1946
1947        /**
1948         * Convenience function for updating a secure settings value as a long
1949         * integer. This will either create a new entry in the table if the
1950         * given name does not exist, or modify the value of the existing row
1951         * with that name.  Note that internally setting values are always
1952         * stored as strings, so this function converts the given value to a
1953         * string before storing it.
1954         *
1955         * @param cr The ContentResolver to access.
1956         * @param name The name of the setting to modify.
1957         * @param value The new value for the setting.
1958         * @return true if the value was set, false on database errors
1959         */
1960        public static boolean putLong(ContentResolver cr, String name, long value) {
1961            return putString(cr, name, Long.toString(value));
1962        }
1963
1964        /**
1965         * Convenience function for retrieving a single secure settings value
1966         * as a floating point number.  Note that internally setting values are
1967         * always stored as strings; this function converts the string to an
1968         * float for you. The default value will be returned if the setting
1969         * is not defined or not a valid float.
1970         *
1971         * @param cr The ContentResolver to access.
1972         * @param name The name of the setting to retrieve.
1973         * @param def Value to return if the setting is not defined.
1974         *
1975         * @return The setting's current value, or 'def' if it is not defined
1976         * or not a valid float.
1977         */
1978        public static float getFloat(ContentResolver cr, String name, float def) {
1979            String v = getString(cr, name);
1980            try {
1981                return v != null ? Float.parseFloat(v) : def;
1982            } catch (NumberFormatException e) {
1983                return def;
1984            }
1985        }
1986
1987        /**
1988         * Convenience function for retrieving a single secure settings value
1989         * as a float.  Note that internally setting values are always
1990         * stored as strings; this function converts the string to a float
1991         * for you.
1992         * <p>
1993         * This version does not take a default value.  If the setting has not
1994         * been set, or the string value is not a number,
1995         * it throws {@link SettingNotFoundException}.
1996         *
1997         * @param cr The ContentResolver to access.
1998         * @param name The name of the setting to retrieve.
1999         *
2000         * @throws SettingNotFoundException Thrown if a setting by the given
2001         * name can't be found or the setting value is not a float.
2002         *
2003         * @return The setting's current value.
2004         */
2005        public static float getFloat(ContentResolver cr, String name)
2006                throws SettingNotFoundException {
2007            String v = getString(cr, name);
2008            try {
2009                return Float.parseFloat(v);
2010            } catch (NumberFormatException e) {
2011                throw new SettingNotFoundException(name);
2012            }
2013        }
2014
2015        /**
2016         * Convenience function for updating a single settings value as a
2017         * floating point number. This will either create a new entry in the
2018         * table if the given name does not exist, or modify the value of the
2019         * existing row with that name.  Note that internally setting values
2020         * are always stored as strings, so this function converts the given
2021         * value to a string before storing it.
2022         *
2023         * @param cr The ContentResolver to access.
2024         * @param name The name of the setting to modify.
2025         * @param value The new value for the setting.
2026         * @return true if the value was set, false on database errors
2027         */
2028        public static boolean putFloat(ContentResolver cr, String name, float value) {
2029            return putString(cr, name, Float.toString(value));
2030        }
2031
2032        /**
2033         * The content:// style URL for this table
2034         */
2035        public static final Uri CONTENT_URI =
2036            Uri.parse("content://" + AUTHORITY + "/secure");
2037
2038        /**
2039         * Whether ADB is enabled.
2040         */
2041        public static final String ADB_ENABLED = "adb_enabled";
2042
2043        /**
2044         * Setting to allow mock locations and location provider status to be injected into the
2045         * LocationManager service for testing purposes during application development.  These
2046         * locations and status values  override actual location and status information generated
2047         * by network, gps, or other location providers.
2048         */
2049        public static final String ALLOW_MOCK_LOCATION = "mock_location";
2050
2051        /**
2052         * A 64-bit number (as a hex string) that is randomly
2053         * generated on the device's first boot and should remain
2054         * constant for the lifetime of the device.  (The value may
2055         * change if a factory reset is performed on the device.)
2056         */
2057        public static final String ANDROID_ID = "android_id";
2058
2059        /**
2060         * Whether bluetooth is enabled/disabled
2061         * 0=disabled. 1=enabled.
2062         */
2063        public static final String BLUETOOTH_ON = "bluetooth_on";
2064
2065        /**
2066         * Get the key that retrieves a bluetooth headset's priority.
2067         * @hide
2068         */
2069        public static final String getBluetoothHeadsetPriorityKey(String address) {
2070            return ("bluetooth_headset_priority_" + address.toUpperCase());
2071        }
2072
2073        /**
2074         * Get the key that retrieves a bluetooth a2dp sink's priority.
2075         * @hide
2076         */
2077        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
2078            return ("bluetooth_a2dp_sink_priority_" + address.toUpperCase());
2079        }
2080
2081        /**
2082         * Whether or not data roaming is enabled. (0 = false, 1 = true)
2083         */
2084        public static final String DATA_ROAMING = "data_roaming";
2085
2086        /**
2087         * Setting to record the input method used by default, holding the ID
2088         * of the desired method.
2089         */
2090        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
2091
2092        /**
2093         * Whether the device has been provisioned (0 = false, 1 = true)
2094         */
2095        public static final String DEVICE_PROVISIONED = "device_provisioned";
2096
2097        /**
2098         * List of input methods that are currently enabled.  This is a string
2099         * containing the IDs of all enabled input methods, each ID separated
2100         * by ':'.
2101         */
2102        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
2103
2104        /**
2105         * Host name and port for a user-selected proxy.
2106         */
2107        public static final String HTTP_PROXY = "http_proxy";
2108
2109        /**
2110         * Whether the package installer should allow installation of apps downloaded from
2111         * sources other than the Android Market (vending machine).
2112         *
2113         * 1 = allow installing from other sources
2114         * 0 = only allow installing from the Android Market
2115         */
2116        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
2117
2118        /**
2119         * Comma-separated list of location providers that activities may access.
2120         */
2121        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
2122
2123        /**
2124         * Whether assisted GPS should be enabled or not.
2125         * @hide
2126         */
2127        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
2128
2129        /**
2130         * The Logging ID (a unique 64-bit value) as a hex string.
2131         * Used as a pseudonymous identifier for logging.
2132         * @deprecated This identifier is poorly initialized and has
2133         * many collisions.  It should not be used.
2134         */
2135        @Deprecated
2136        public static final String LOGGING_ID = "logging_id";
2137
2138        /**
2139         * User preference for which network(s) should be used. Only the
2140         * connectivity service should touch this.
2141         */
2142        public static final String NETWORK_PREFERENCE = "network_preference";
2143
2144        /**
2145         */
2146        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
2147
2148        /**
2149         */
2150        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
2151
2152        /**
2153         */
2154        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
2155
2156        /**
2157         * Settings classname to launch when Settings is clicked from All
2158         * Applications.  Needed because of user testing between the old
2159         * and new Settings apps.
2160         */
2161        // TODO: 881807
2162        public static final String SETTINGS_CLASSNAME = "settings_classname";
2163
2164        /**
2165         * USB Mass Storage Enabled
2166         */
2167        public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
2168
2169        /**
2170         * If this setting is set (to anything), then all references
2171         * to Gmail on the device must change to Google Mail.
2172         */
2173        public static final String USE_GOOGLE_MAIL = "use_google_mail";
2174
2175        /**
2176         * If accessibility is enabled.
2177         */
2178        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
2179
2180        /**
2181         * List of the enabled accessibility providers.
2182         */
2183        public static final String ENABLED_ACCESSIBILITY_SERVICES =
2184            "enabled_accessibility_services";
2185
2186        /**
2187         * Setting to always use the default text-to-speech settings regardless
2188         * of the application settings.
2189         * 1 = override application settings,
2190         * 0 = use application settings (if specified).
2191         */
2192        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
2193
2194        /**
2195         * Default text-to-speech engine speech rate. 100 = 1x
2196         */
2197        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
2198
2199        /**
2200         * Default text-to-speech engine pitch. 100 = 1x
2201         */
2202        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
2203
2204        /**
2205         * Default text-to-speech engine.
2206         */
2207        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
2208
2209        /**
2210         * Default text-to-speech language.
2211         */
2212        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
2213
2214        /**
2215         * Default text-to-speech country.
2216         */
2217        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
2218
2219        /**
2220         * Default text-to-speech locale variant.
2221         */
2222        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
2223
2224        /**
2225         * Whether to notify the user of open networks.
2226         * <p>
2227         * If not connected and the scan results have an open network, we will
2228         * put this notification up. If we attempt to connect to a network or
2229         * the open network(s) disappear, we remove the notification. When we
2230         * show the notification, we will not show it again for
2231         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
2232         */
2233        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
2234                "wifi_networks_available_notification_on";
2235
2236        /**
2237         * Delay (in seconds) before repeating the Wi-Fi networks available notification.
2238         * Connecting to a network will reset the timer.
2239         */
2240        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
2241                "wifi_networks_available_repeat_delay";
2242
2243        /**
2244         * The number of radio channels that are allowed in the local
2245         * 802.11 regulatory domain.
2246         * @hide
2247         */
2248        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
2249
2250        /**
2251         * When the number of open networks exceeds this number, the
2252         * least-recently-used excess networks will be removed.
2253         */
2254        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
2255
2256        /**
2257         * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
2258         */
2259        public static final String WIFI_ON = "wifi_on";
2260
2261        /**
2262         * The acceptable packet loss percentage (range 0 - 100) before trying
2263         * another AP on the same network.
2264         */
2265        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
2266                "wifi_watchdog_acceptable_packet_loss_percentage";
2267
2268        /**
2269         * The number of access points required for a network in order for the
2270         * watchdog to monitor it.
2271         */
2272        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
2273
2274        /**
2275         * The delay between background checks.
2276         */
2277        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
2278                "wifi_watchdog_background_check_delay_ms";
2279
2280        /**
2281         * Whether the Wi-Fi watchdog is enabled for background checking even
2282         * after it thinks the user has connected to a good access point.
2283         */
2284        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
2285                "wifi_watchdog_background_check_enabled";
2286
2287        /**
2288         * The timeout for a background ping
2289         */
2290        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
2291                "wifi_watchdog_background_check_timeout_ms";
2292
2293        /**
2294         * The number of initial pings to perform that *may* be ignored if they
2295         * fail. Again, if these fail, they will *not* be used in packet loss
2296         * calculation. For example, one network always seemed to time out for
2297         * the first couple pings, so this is set to 3 by default.
2298         */
2299        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
2300            "wifi_watchdog_initial_ignored_ping_count";
2301
2302        /**
2303         * The maximum number of access points (per network) to attempt to test.
2304         * If this number is reached, the watchdog will no longer monitor the
2305         * initial connection state for the network. This is a safeguard for
2306         * networks containing multiple APs whose DNS does not respond to pings.
2307         */
2308        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
2309
2310        /**
2311         * Whether the Wi-Fi watchdog is enabled.
2312         */
2313        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
2314
2315        /**
2316         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
2317         */
2318        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
2319
2320        /**
2321         * The number of pings to test if an access point is a good connection.
2322         */
2323        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
2324
2325        /**
2326         * The delay between pings.
2327         */
2328        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
2329
2330        /**
2331         * The timeout per ping.
2332         */
2333        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
2334
2335        /**
2336         * The maximum number of times we will retry a connection to an access
2337         * point for which we have failed in acquiring an IP address from DHCP.
2338         * A value of N means that we will make N+1 connection attempts in all.
2339         */
2340        public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
2341
2342        /**
2343         * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
2344         * data connectivity to be established after a disconnect from Wi-Fi.
2345         */
2346        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
2347            "wifi_mobile_data_transition_wakelock_timeout_ms";
2348
2349        /**
2350         * Whether background data usage is allowed by the user. See
2351         * ConnectivityManager for more info.
2352         */
2353        public static final String BACKGROUND_DATA = "background_data";
2354
2355        /**
2356         * The CDMA roaming mode 0 = Home Networks, CDMA default
2357         *                       1 = Roaming on Affiliated networks
2358         *                       2 = Roaming on any networks
2359         * @hide
2360         */
2361        public static final String CDMA_ROAMING_MODE = "roaming_settings";
2362
2363        /**
2364         * The CDMA subscription mode 0 = RUIM/SIM (default)
2365         *                                1 = NV
2366         * @hide
2367         */
2368        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
2369
2370        /**
2371         * The preferred network mode   7 = Global
2372         *                              6 = EvDo only
2373         *                              5 = CDMA w/o EvDo
2374         *                              4 = CDMA / EvDo auto
2375         *                              3 = GSM / WCDMA auto
2376         *                              2 = WCDMA only
2377         *                              1 = GSM only
2378         *                              0 = GSM / WCDMA preferred
2379         * @hide
2380         */
2381        public static final String PREFERRED_NETWORK_MODE =
2382                "preferred_network_mode";
2383
2384        /**
2385         * The preferred TTY mode     0 = TTy Off, CDMA default
2386         *                            1 = TTY Full
2387         *                            2 = TTY HCO
2388         *                            3 = TTY VCO
2389         * @hide
2390         */
2391        public static final String PREFERRED_TTY_MODE =
2392                "preferred_tty_mode";
2393
2394
2395        /**
2396         * CDMA Cell Broadcast SMS
2397         *                            0 = CDMA Cell Broadcast SMS disabled
2398         *                            1 = CDMA Cell Broadcast SMS enabled
2399         * @hide
2400         */
2401        public static final String CDMA_CELL_BROADCAST_SMS =
2402                "cdma_cell_broadcast_sms";
2403
2404        /**
2405         * The cdma subscription 0 = Subscription from RUIM, when available
2406         *                       1 = Subscription from NV
2407         * @hide
2408         */
2409        public static final String PREFERRED_CDMA_SUBSCRIPTION =
2410                "preferred_cdma_subscription";
2411
2412        /**
2413         * Whether the enhanced voice privacy mode is enabled.
2414         * 0 = normal voice privacy
2415         * 1 = enhanced voice privacy
2416         * @hide
2417         */
2418        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
2419
2420        /**
2421         * Whether the TTY mode mode is enabled.
2422         * 0 = disabled
2423         * 1 = enabled
2424         * @hide
2425         */
2426        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
2427
2428        /**
2429         * Flag for allowing service provider to use location information to improve products and
2430         * services.
2431         * Type: int ( 0 = disallow, 1 = allow )
2432         * @hide
2433         */
2434        public static final String USE_LOCATION_FOR_SERVICES = "use_location";
2435
2436        /**
2437         * Controls whether settings backup is enabled.
2438         * Type: int ( 0 = disabled, 1 = enabled )
2439         * @hide
2440         */
2441        public static final String BACKUP_ENABLED = "backup_enabled";
2442
2443        /**
2444         * Controls whether application data is automatically restored from backup
2445         * at install time.
2446         * Type: int ( 0 = disabled, 1 = enabled )
2447         * @hide
2448         */
2449        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
2450
2451        /**
2452         * Indicates whether settings backup has been fully provisioned.
2453         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
2454         * @hide
2455         */
2456        public static final String BACKUP_PROVISIONED = "backup_provisioned";
2457
2458        /**
2459         * Component of the transport to use for backup/restore.
2460         * @hide
2461         */
2462        public static final String BACKUP_TRANSPORT = "backup_transport";
2463
2464        /**
2465         * Version for which the setup wizard was last shown.  Bumped for
2466         * each release when there is new setup information to show.
2467         * @hide
2468         */
2469        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
2470
2471        /**
2472         * How frequently (in seconds) to check the memory status of the
2473         * device.
2474         * @hide
2475         */
2476        public static final String MEMCHECK_INTERVAL = "memcheck_interval";
2477
2478        /**
2479         * Max frequency (in seconds) to log memory check stats, in realtime
2480         * seconds.  This allows for throttling of logs when the device is
2481         * running for large amounts of time.
2482         * @hide
2483         */
2484        public static final String MEMCHECK_LOG_REALTIME_INTERVAL =
2485                "memcheck_log_realtime_interval";
2486
2487        /**
2488         * Boolean indicating whether rebooting due to system memory checks
2489         * is enabled.
2490         * @hide
2491         */
2492        public static final String MEMCHECK_SYSTEM_ENABLED = "memcheck_system_enabled";
2493
2494        /**
2495         * How many bytes the system process must be below to avoid scheduling
2496         * a soft reboot.  This reboot will happen when it is next determined
2497         * to be a good time.
2498         * @hide
2499         */
2500        public static final String MEMCHECK_SYSTEM_SOFT_THRESHOLD = "memcheck_system_soft";
2501
2502        /**
2503         * How many bytes the system process must be below to avoid scheduling
2504         * a hard reboot.  This reboot will happen immediately.
2505         * @hide
2506         */
2507        public static final String MEMCHECK_SYSTEM_HARD_THRESHOLD = "memcheck_system_hard";
2508
2509        /**
2510         * How many bytes the phone process must be below to avoid scheduling
2511         * a soft restart.  This restart will happen when it is next determined
2512         * to be a good time.
2513         * @hide
2514         */
2515        public static final String MEMCHECK_PHONE_SOFT_THRESHOLD = "memcheck_phone_soft";
2516
2517        /**
2518         * How many bytes the phone process must be below to avoid scheduling
2519         * a hard restart.  This restart will happen immediately.
2520         * @hide
2521         */
2522        public static final String MEMCHECK_PHONE_HARD_THRESHOLD = "memcheck_phone_hard";
2523
2524        /**
2525         * Boolean indicating whether restarting the phone process due to
2526         * memory checks is enabled.
2527         * @hide
2528         */
2529        public static final String MEMCHECK_PHONE_ENABLED = "memcheck_phone_enabled";
2530
2531        /**
2532         * First time during the day it is okay to kill processes
2533         * or reboot the device due to low memory situations.  This number is
2534         * in seconds since midnight.
2535         * @hide
2536         */
2537        public static final String MEMCHECK_EXEC_START_TIME = "memcheck_exec_start_time";
2538
2539        /**
2540         * Last time during the day it is okay to kill processes
2541         * or reboot the device due to low memory situations.  This number is
2542         * in seconds since midnight.
2543         * @hide
2544         */
2545        public static final String MEMCHECK_EXEC_END_TIME = "memcheck_exec_end_time";
2546
2547        /**
2548         * How long the screen must have been off in order to kill processes
2549         * or reboot.  This number is in seconds.  A value of -1 means to
2550         * entirely disregard whether the screen is on.
2551         * @hide
2552         */
2553        public static final String MEMCHECK_MIN_SCREEN_OFF = "memcheck_min_screen_off";
2554
2555        /**
2556         * How much time there must be until the next alarm in order to kill processes
2557         * or reboot.  This number is in seconds.  Note: this value must be
2558         * smaller than {@link #MEMCHECK_RECHECK_INTERVAL} or else it will
2559         * always see an alarm scheduled within its time.
2560         * @hide
2561         */
2562        public static final String MEMCHECK_MIN_ALARM = "memcheck_min_alarm";
2563
2564        /**
2565         * How frequently to check whether it is a good time to restart things,
2566         * if the device is in a bad state.  This number is in seconds.  Note:
2567         * this value must be larger than {@link #MEMCHECK_MIN_ALARM} or else
2568         * the alarm to schedule the recheck will always appear within the
2569         * minimum "do not execute now" time.
2570         * @hide
2571         */
2572        public static final String MEMCHECK_RECHECK_INTERVAL = "memcheck_recheck_interval";
2573
2574        /**
2575         * How frequently (in DAYS) to reboot the device.  If 0, no reboots
2576         * will occur.
2577         * @hide
2578         */
2579        public static final String REBOOT_INTERVAL = "reboot_interval";
2580
2581        /**
2582         * First time during the day it is okay to force a reboot of the
2583         * device (if REBOOT_INTERVAL is set).  This number is
2584         * in seconds since midnight.
2585         * @hide
2586         */
2587        public static final String REBOOT_START_TIME = "reboot_start_time";
2588
2589        /**
2590         * The window of time (in seconds) after each REBOOT_INTERVAL in which
2591         * a reboot can be executed.  If 0, a reboot will always be executed at
2592         * exactly the given time.  Otherwise, it will only be executed if
2593         * the device is idle within the window.
2594         * @hide
2595         */
2596        public static final String REBOOT_WINDOW = "reboot_window";
2597
2598        /**
2599         * Threshold values for the duration and level of a discharge cycle, under
2600         * which we log discharge cycle info.
2601         * @hide
2602         */
2603        public static final String BATTERY_DISCHARGE_DURATION_THRESHOLD =
2604                "battery_discharge_duration_threshold";
2605        /** @hide */
2606        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
2607
2608        /**
2609         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR intents
2610         * on application crashes and ANRs. If this is disabled, the crash/ANR dialog
2611         * will never display the "Report" button.
2612         * Type: int ( 0 = disallow, 1 = allow )
2613         * @hide
2614         */
2615        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
2616
2617        /**
2618         * Nonzero causes Log.wtf() to crash.
2619         * @hide
2620         */
2621        public static final String WTF_IS_FATAL = "wtf_is_fatal";
2622
2623        /**
2624         * Maximum age of entries kept by {@link android.os.IDropBox}.
2625         * @hide
2626         */
2627        public static final String DROPBOX_AGE_SECONDS =
2628                "dropbox_age_seconds";
2629        /**
2630         * Maximum amount of disk space used by {@link android.os.IDropBox} no matter what.
2631         * @hide
2632         */
2633        public static final String DROPBOX_QUOTA_KB =
2634                "dropbox_quota_kb";
2635        /**
2636         * Percent of free disk (excluding reserve) which {@link android.os.IDropBox} will use.
2637         * @hide
2638         */
2639        public static final String DROPBOX_QUOTA_PERCENT =
2640                "dropbox_quota_percent";
2641        /**
2642         * Percent of total disk which {@link android.os.IDropBox} will never dip into.
2643         * @hide
2644         */
2645        public static final String DROPBOX_RESERVE_PERCENT =
2646                "dropbox_reserve_percent";
2647        /**
2648         * Prefix for per-tag dropbox disable/enable settings.
2649         * @hide
2650         */
2651        public static final String DROPBOX_TAG_PREFIX =
2652                "dropbox:";
2653
2654
2655        /**
2656         * Screen timeout in milliseconds corresponding to the
2657         * PowerManager's POKE_LOCK_SHORT_TIMEOUT flag (i.e. the fastest
2658         * possible screen timeout behavior.)
2659         * @hide
2660         */
2661        public static final String SHORT_KEYLIGHT_DELAY_MS =
2662                "short_keylight_delay_ms";
2663
2664        /**
2665         * The interval in minutes after which the amount of free storage left on the
2666         * device is logged to the event log
2667         * @hide
2668         */
2669        public static final String SYS_FREE_STORAGE_LOG_INTERVAL =
2670                "sys_free_storage_log_interval";
2671
2672        /**
2673         * Threshold for the amount of change in disk free space required to report the amount of
2674         * free space. Used to prevent spamming the logs when the disk free space isn't changing
2675         * frequently.
2676         * @hide
2677         */
2678        public static final String DISK_FREE_CHANGE_REPORTING_THRESHOLD =
2679                "disk_free_change_reporting_threshold";
2680
2681
2682        /**
2683         * Minimum percentage of free storage on the device that is used to determine if
2684         * the device is running low on storage.
2685         * Say this value is set to 10, the device is considered running low on storage
2686         * if 90% or more of the device storage is filled up.
2687         * @hide
2688         */
2689        public static final String SYS_STORAGE_THRESHOLD_PERCENTAGE =
2690                "sys_storage_threshold_percentage";
2691
2692        /**
2693         * The interval in milliseconds after which Wi-Fi is considered idle.
2694         * When idle, it is possible for the device to be switched from Wi-Fi to
2695         * the mobile data network.
2696         * @hide
2697         */
2698        public static final String WIFI_IDLE_MS = "wifi_idle_ms";
2699
2700        /**
2701         * The interval in milliseconds at which to check packet counts on the
2702         * mobile data interface when screen is on, to detect possible data
2703         * connection problems.
2704         * @hide
2705         */
2706        public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
2707                "pdp_watchdog_poll_interval_ms";
2708
2709        /**
2710         * The interval in milliseconds at which to check packet counts on the
2711         * mobile data interface when screen is off, to detect possible data
2712         * connection problems.
2713         * @hide
2714         */
2715        public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
2716                "pdp_watchdog_long_poll_interval_ms";
2717
2718        /**
2719         * The interval in milliseconds at which to check packet counts on the
2720         * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
2721         * outgoing packets has been reached without incoming packets.
2722         * @hide
2723         */
2724        public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
2725                "pdp_watchdog_error_poll_interval_ms";
2726
2727        /**
2728         * The number of outgoing packets sent without seeing an incoming packet
2729         * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
2730         * device is logged to the event log
2731         * @hide
2732         */
2733        public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
2734                "pdp_watchdog_trigger_packet_count";
2735
2736        /**
2737         * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
2738         * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
2739         * attempting data connection recovery.
2740         * @hide
2741         */
2742        public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
2743                "pdp_watchdog_error_poll_count";
2744
2745        /**
2746         * The number of failed PDP reset attempts before moving to something more
2747         * drastic: re-registering to the network.
2748         * @hide
2749         */
2750        public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
2751                "pdp_watchdog_max_pdp_reset_fail_count";
2752
2753        /**
2754         * Address to ping as a last sanity check before attempting any recovery.
2755         * Unset or set to "0.0.0.0" to skip this check.
2756         * @hide
2757         */
2758        public static final String PDP_WATCHDOG_PING_ADDRESS = "pdp_watchdog_ping_address";
2759
2760        /**
2761         * The "-w deadline" parameter for the ping, ie, the max time in
2762         * seconds to spend pinging.
2763         * @hide
2764         */
2765        public static final String PDP_WATCHDOG_PING_DEADLINE = "pdp_watchdog_ping_deadline";
2766
2767        /**
2768         * The interval in milliseconds at which to check gprs registration
2769         * after the first registration mismatch of gprs and voice service,
2770         * to detect possible data network registration problems.
2771         *
2772         * @hide
2773         */
2774        public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
2775                "gprs_register_check_period_ms";
2776
2777        /**
2778         * The length of time in milli-seconds that automatic small adjustments to
2779         * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
2780         * @hide
2781         */
2782        public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
2783
2784        /**
2785         * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
2786         * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
2787         * exceeded.
2788         * @hide
2789         */
2790        public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
2791
2792        /**
2793         * The maximum reconnect delay for short network outages or when the network is suspended
2794         * due to phone use.
2795         * @hide
2796         */
2797        public static final String SYNC_MAX_RETRY_DELAY_IN_SECONDS =
2798                "sync_max_retry_delay_in_seconds";
2799
2800        /**
2801         * The interval in milliseconds at which to check the number of SMS sent
2802         * out without asking for use permit, to limit the un-authorized SMS
2803         * usage.
2804         * @hide
2805         */
2806        public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
2807                "sms_outgoing_check_interval_ms";
2808
2809        /**
2810         * The number of outgoing SMS sent without asking for user permit
2811         * (of {@link #SMS_OUTGOING_CHECK_INTERVAL_MS}
2812         * @hide
2813         */
2814        public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
2815                "sms_outgoing_check_max_count";
2816
2817        /**
2818         * The number of promoted sources in GlobalSearch.
2819         * @hide
2820         */
2821        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
2822        /**
2823         * The maximum number of suggestions returned by GlobalSearch.
2824         * @hide
2825         */
2826        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
2827        /**
2828         * The number of suggestions GlobalSearch will ask each non-web search source for.
2829         * @hide
2830         */
2831        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
2832        /**
2833         * The number of suggestions the GlobalSearch will ask the web search source for.
2834         * @hide
2835         */
2836        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
2837                "search_web_results_override_limit";
2838        /**
2839         * The number of milliseconds that GlobalSearch will wait for suggestions from
2840         * promoted sources before continuing with all other sources.
2841         * @hide
2842         */
2843        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
2844                "search_promoted_source_deadline_millis";
2845        /**
2846         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
2847         * @hide
2848         */
2849        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
2850        /**
2851         * The maximum number of milliseconds that GlobalSearch shows the previous results
2852         * after receiving a new query.
2853         * @hide
2854         */
2855        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
2856        /**
2857         * The maximum age of log data used for shortcuts in GlobalSearch.
2858         * @hide
2859         */
2860        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
2861        /**
2862         * The maximum age of log data used for source ranking in GlobalSearch.
2863         * @hide
2864         */
2865        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
2866                "search_max_source_event_age_millis";
2867        /**
2868         * The minimum number of impressions needed to rank a source in GlobalSearch.
2869         * @hide
2870         */
2871        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
2872                "search_min_impressions_for_source_ranking";
2873        /**
2874         * The minimum number of clicks needed to rank a source in GlobalSearch.
2875         * @hide
2876         */
2877        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
2878                "search_min_clicks_for_source_ranking";
2879        /**
2880         * The maximum number of shortcuts shown by GlobalSearch.
2881         * @hide
2882         */
2883        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
2884        /**
2885         * The size of the core thread pool for suggestion queries in GlobalSearch.
2886         * @hide
2887         */
2888        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
2889                "search_query_thread_core_pool_size";
2890        /**
2891         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
2892         * @hide
2893         */
2894        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
2895                "search_query_thread_max_pool_size";
2896        /**
2897         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
2898         * @hide
2899         */
2900        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
2901                "search_shortcut_refresh_core_pool_size";
2902        /**
2903         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
2904         * @hide
2905         */
2906        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
2907                "search_shortcut_refresh_max_pool_size";
2908        /**
2909         * The maximun time that excess threads in the GlobalSeach thread pools will
2910         * wait before terminating.
2911         * @hide
2912         */
2913        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
2914                "search_thread_keepalive_seconds";
2915        /**
2916         * The maximum number of concurrent suggestion queries to each source.
2917         * @hide
2918         */
2919        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
2920                "search_per_source_concurrent_query_limit";
2921
2922        /**
2923         * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
2924         * @hide
2925         */
2926        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
2927
2928        /**
2929         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
2930         * @hide
2931         */
2932        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
2933
2934        /**
2935         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
2936         * @hide
2937         */
2938        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
2939
2940        /**
2941         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
2942         * @hide
2943         */
2944        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
2945
2946        /**
2947         * Whether or not a notification is displayed when a Tetherable interface is detected.
2948         * (0 = false, 1 = true)
2949         * @hide
2950         */
2951        public static final String TETHER_NOTIFY = "tether_notify";
2952
2953        /**
2954         * If nonzero, ANRs in invisible background processes bring up a dialog.
2955         * Otherwise, the process will be silently killed.
2956         * @hide
2957         */
2958        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
2959
2960        /**
2961         * The {@link ComponentName} string of the service to be used as the voice recognition
2962         * service.
2963         *
2964         * @hide
2965         */
2966        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
2967
2968        /**
2969         * @hide
2970         */
2971        public static final String[] SETTINGS_TO_BACKUP = {
2972            ADB_ENABLED,
2973            ALLOW_MOCK_LOCATION,
2974            PARENTAL_CONTROL_ENABLED,
2975            PARENTAL_CONTROL_REDIRECT_URL,
2976            USB_MASS_STORAGE_ENABLED,
2977            ACCESSIBILITY_ENABLED,
2978            ENABLED_ACCESSIBILITY_SERVICES,
2979            TTS_USE_DEFAULTS,
2980            TTS_DEFAULT_RATE,
2981            TTS_DEFAULT_PITCH,
2982            TTS_DEFAULT_SYNTH,
2983            TTS_DEFAULT_LANG,
2984            TTS_DEFAULT_COUNTRY,
2985            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
2986            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
2987            WIFI_NUM_ALLOWED_CHANNELS,
2988            WIFI_NUM_OPEN_NETWORKS_KEPT,
2989            MOUNT_PLAY_NOTIFICATION_SND,
2990            MOUNT_UMS_AUTOSTART,
2991            MOUNT_UMS_PROMPT,
2992            MOUNT_UMS_NOTIFY_ENABLED
2993        };
2994
2995        /**
2996         * Helper method for determining if a location provider is enabled.
2997         * @param cr the content resolver to use
2998         * @param provider the location provider to query
2999         * @return true if the provider is enabled
3000         */
3001        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
3002            String allowedProviders = Settings.Secure.getString(cr, LOCATION_PROVIDERS_ALLOWED);
3003            if (allowedProviders != null) {
3004                return (allowedProviders.equals(provider) ||
3005                        allowedProviders.contains("," + provider + ",") ||
3006                        allowedProviders.startsWith(provider + ",") ||
3007                        allowedProviders.endsWith("," + provider));
3008            }
3009            return false;
3010        }
3011
3012        /**
3013         * Thread-safe method for enabling or disabling a single location provider.
3014         * @param cr the content resolver to use
3015         * @param provider the location provider to enable or disable
3016         * @param enabled true if the provider should be enabled
3017         */
3018        public static final void setLocationProviderEnabled(ContentResolver cr,
3019                String provider, boolean enabled) {
3020            // to ensure thread safety, we write the provider name with a '+' or '-'
3021            // and let the SettingsProvider handle it rather than reading and modifying
3022            // the list of enabled providers.
3023            if (enabled) {
3024                provider = "+" + provider;
3025            } else {
3026                provider = "-" + provider;
3027            }
3028            putString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider);
3029        }
3030    }
3031
3032    /**
3033     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
3034     * Intent URL, allowing it to be either a web page or a particular
3035     * application activity.
3036     *
3037     * @hide
3038     */
3039    public static final class Bookmarks implements BaseColumns
3040    {
3041        private static final String TAG = "Bookmarks";
3042
3043        /**
3044         * The content:// style URL for this table
3045         */
3046        public static final Uri CONTENT_URI =
3047            Uri.parse("content://" + AUTHORITY + "/bookmarks");
3048
3049        /**
3050         * The row ID.
3051         * <p>Type: INTEGER</p>
3052         */
3053        public static final String ID = "_id";
3054
3055        /**
3056         * Descriptive name of the bookmark that can be displayed to the user.
3057         * If this is empty, the title should be resolved at display time (use
3058         * {@link #getTitle(Context, Cursor)} any time you want to display the
3059         * title of a bookmark.)
3060         * <P>
3061         * Type: TEXT
3062         * </P>
3063         */
3064        public static final String TITLE = "title";
3065
3066        /**
3067         * Arbitrary string (displayed to the user) that allows bookmarks to be
3068         * organized into categories.  There are some special names for
3069         * standard folders, which all start with '@'.  The label displayed for
3070         * the folder changes with the locale (via {@link #getLabelForFolder}) but
3071         * the folder name does not change so you can consistently query for
3072         * the folder regardless of the current locale.
3073         *
3074         * <P>Type: TEXT</P>
3075         *
3076         */
3077        public static final String FOLDER = "folder";
3078
3079        /**
3080         * The Intent URL of the bookmark, describing what it points to.  This
3081         * value is given to {@link android.content.Intent#getIntent} to create
3082         * an Intent that can be launched.
3083         * <P>Type: TEXT</P>
3084         */
3085        public static final String INTENT = "intent";
3086
3087        /**
3088         * Optional shortcut character associated with this bookmark.
3089         * <P>Type: INTEGER</P>
3090         */
3091        public static final String SHORTCUT = "shortcut";
3092
3093        /**
3094         * The order in which the bookmark should be displayed
3095         * <P>Type: INTEGER</P>
3096         */
3097        public static final String ORDERING = "ordering";
3098
3099        private static final String[] sIntentProjection = { INTENT };
3100        private static final String[] sShortcutProjection = { ID, SHORTCUT };
3101        private static final String sShortcutSelection = SHORTCUT + "=?";
3102
3103        /**
3104         * Convenience function to retrieve the bookmarked Intent for a
3105         * particular shortcut key.
3106         *
3107         * @param cr The ContentResolver to query.
3108         * @param shortcut The shortcut key.
3109         *
3110         * @return Intent The bookmarked URL, or null if there is no bookmark
3111         *         matching the given shortcut.
3112         */
3113        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
3114        {
3115            Intent intent = null;
3116
3117            Cursor c = cr.query(CONTENT_URI,
3118                    sIntentProjection, sShortcutSelection,
3119                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
3120            // Keep trying until we find a valid shortcut
3121            try {
3122                while (intent == null && c.moveToNext()) {
3123                    try {
3124                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
3125                        intent = Intent.getIntent(intentURI);
3126                    } catch (java.net.URISyntaxException e) {
3127                        // The stored URL is bad...  ignore it.
3128                    } catch (IllegalArgumentException e) {
3129                        // Column not found
3130                        Log.w(TAG, "Intent column not found", e);
3131                    }
3132                }
3133            } finally {
3134                if (c != null) c.close();
3135            }
3136
3137            return intent;
3138        }
3139
3140        /**
3141         * Add a new bookmark to the system.
3142         *
3143         * @param cr The ContentResolver to query.
3144         * @param intent The desired target of the bookmark.
3145         * @param title Bookmark title that is shown to the user; null if none
3146         *            or it should be resolved to the intent's title.
3147         * @param folder Folder in which to place the bookmark; null if none.
3148         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
3149         *            this is non-zero and there is an existing bookmark entry
3150         *            with this same shortcut, then that existing shortcut is
3151         *            cleared (the bookmark is not removed).
3152         * @return The unique content URL for the new bookmark entry.
3153         */
3154        public static Uri add(ContentResolver cr,
3155                                           Intent intent,
3156                                           String title,
3157                                           String folder,
3158                                           char shortcut,
3159                                           int ordering)
3160        {
3161            // If a shortcut is supplied, and it is already defined for
3162            // another bookmark, then remove the old definition.
3163            if (shortcut != 0) {
3164                Cursor c = cr.query(CONTENT_URI,
3165                        sShortcutProjection, sShortcutSelection,
3166                        new String[] { String.valueOf((int) shortcut) }, null);
3167                try {
3168                    if (c.moveToFirst()) {
3169                        while (c.getCount() > 0) {
3170                            if (!c.deleteRow()) {
3171                                Log.w(TAG, "Could not delete existing shortcut row");
3172                            }
3173                        }
3174                    }
3175                } finally {
3176                    if (c != null) c.close();
3177                }
3178            }
3179
3180            ContentValues values = new ContentValues();
3181            if (title != null) values.put(TITLE, title);
3182            if (folder != null) values.put(FOLDER, folder);
3183            values.put(INTENT, intent.toURI());
3184            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
3185            values.put(ORDERING, ordering);
3186            return cr.insert(CONTENT_URI, values);
3187        }
3188
3189        /**
3190         * Return the folder name as it should be displayed to the user.  This
3191         * takes care of localizing special folders.
3192         *
3193         * @param r Resources object for current locale; only need access to
3194         *          system resources.
3195         * @param folder The value found in the {@link #FOLDER} column.
3196         *
3197         * @return CharSequence The label for this folder that should be shown
3198         *         to the user.
3199         */
3200        public static CharSequence getLabelForFolder(Resources r, String folder) {
3201            return folder;
3202        }
3203
3204        /**
3205         * Return the title as it should be displayed to the user. This takes
3206         * care of localizing bookmarks that point to activities.
3207         *
3208         * @param context A context.
3209         * @param cursor A cursor pointing to the row whose title should be
3210         *        returned. The cursor must contain at least the {@link #TITLE}
3211         *        and {@link #INTENT} columns.
3212         * @return A title that is localized and can be displayed to the user,
3213         *         or the empty string if one could not be found.
3214         */
3215        public static CharSequence getTitle(Context context, Cursor cursor) {
3216            int titleColumn = cursor.getColumnIndex(TITLE);
3217            int intentColumn = cursor.getColumnIndex(INTENT);
3218            if (titleColumn == -1 || intentColumn == -1) {
3219                throw new IllegalArgumentException(
3220                        "The cursor must contain the TITLE and INTENT columns.");
3221            }
3222
3223            String title = cursor.getString(titleColumn);
3224            if (!TextUtils.isEmpty(title)) {
3225                return title;
3226            }
3227
3228            String intentUri = cursor.getString(intentColumn);
3229            if (TextUtils.isEmpty(intentUri)) {
3230                return "";
3231            }
3232
3233            Intent intent;
3234            try {
3235                intent = Intent.getIntent(intentUri);
3236            } catch (URISyntaxException e) {
3237                return "";
3238            }
3239
3240            PackageManager packageManager = context.getPackageManager();
3241            ResolveInfo info = packageManager.resolveActivity(intent, 0);
3242            return info != null ? info.loadLabel(packageManager) : "";
3243        }
3244    }
3245
3246    /**
3247     * Returns the device ID that we should use when connecting to the mobile gtalk server.
3248     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
3249     * from the GoogleLoginService.
3250     *
3251     * @param androidId The Android ID for this device.
3252     * @return The device ID that should be used when connecting to the mobile gtalk server.
3253     * @hide
3254     */
3255    public static String getGTalkDeviceId(long androidId) {
3256        return "android-" + Long.toHexString(androidId);
3257    }
3258}
3259