Settings.java revision 76879bc2343779d4d2a870b7bd46b0544c0cc46c
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.ContentQueryMap;
26import android.content.ContentResolver;
27import android.content.ContentValues;
28import android.content.Context;
29import android.content.Intent;
30import android.content.pm.PackageManager;
31import android.content.pm.ResolveInfo;
32import android.content.res.Configuration;
33import android.content.res.Resources;
34import android.database.Cursor;
35import android.database.SQLException;
36import android.net.Uri;
37import android.os.*;
38import android.telephony.TelephonyManager;
39import android.text.TextUtils;
40import android.util.AndroidException;
41import android.util.Log;
42
43import java.net.URISyntaxException;
44import java.security.MessageDigest;
45import java.security.NoSuchAlgorithmException;
46import java.util.HashMap;
47import java.util.HashSet;
48
49
50/**
51 * The Settings provider contains global system-level device preferences.
52 */
53public final class Settings {
54
55    // Intent actions for Settings
56
57    /**
58     * Activity Action: Show system settings.
59     * <p>
60     * Input: Nothing.
61     * <p>
62     * Output: nothing.
63     */
64    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
65    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
66
67    /**
68     * Activity Action: Show settings to allow configuration of APNs.
69     * <p>
70     * Input: Nothing.
71     * <p>
72     * Output: nothing.
73     */
74    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
75    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
76
77    /**
78     * Activity Action: Show settings to allow configuration of current location
79     * sources.
80     * <p>
81     * In some cases, a matching Activity may not exist, so ensure you
82     * safeguard against this.
83     * <p>
84     * Input: Nothing.
85     * <p>
86     * Output: Nothing.
87     */
88    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
89    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
90            "android.settings.LOCATION_SOURCE_SETTINGS";
91
92    /**
93     * Activity Action: Show settings to allow configuration of wireless controls
94     * such as Wi-Fi, Bluetooth and Mobile networks.
95     * <p>
96     * In some cases, a matching Activity may not exist, so ensure you
97     * safeguard against this.
98     * <p>
99     * Input: Nothing.
100     * <p>
101     * Output: Nothing.
102     */
103    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
104    public static final String ACTION_WIRELESS_SETTINGS =
105            "android.settings.WIRELESS_SETTINGS";
106
107    /**
108     * Activity Action: Show settings to allow entering/exiting airplane mode.
109     * <p>
110     * In some cases, a matching Activity may not exist, so ensure you
111     * safeguard against this.
112     * <p>
113     * Input: Nothing.
114     * <p>
115     * Output: Nothing.
116     */
117    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
118    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
119            "android.settings.AIRPLANE_MODE_SETTINGS";
120
121    /**
122     * Activity Action: Show settings to allow configuration of security and
123     * location privacy.
124     * <p>
125     * In some cases, a matching Activity may not exist, so ensure you
126     * safeguard against this.
127     * <p>
128     * Input: Nothing.
129     * <p>
130     * Output: Nothing.
131     */
132    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
133    public static final String ACTION_SECURITY_SETTINGS =
134            "android.settings.SECURITY_SETTINGS";
135
136    /**
137     * Activity Action: Show settings to allow configuration of Wi-Fi.
138
139     * <p>
140     * In some cases, a matching Activity may not exist, so ensure you
141     * safeguard against this.
142     * <p>
143     * Input: Nothing.
144     * <p>
145     * Output: Nothing.
146
147     */
148    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
149    public static final String ACTION_WIFI_SETTINGS =
150            "android.settings.WIFI_SETTINGS";
151
152    /**
153     * Activity Action: Show settings to allow configuration of a static IP
154     * address for Wi-Fi.
155     * <p>
156     * In some cases, a matching Activity may not exist, so ensure you safeguard
157     * against this.
158     * <p>
159     * Input: Nothing.
160     * <p>
161     * Output: Nothing.
162     */
163    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
164    public static final String ACTION_WIFI_IP_SETTINGS =
165            "android.settings.WIFI_IP_SETTINGS";
166
167    /**
168     * Activity Action: Show settings to allow configuration of Bluetooth.
169     * <p>
170     * In some cases, a matching Activity may not exist, so ensure you
171     * safeguard against this.
172     * <p>
173     * Input: Nothing.
174     * <p>
175     * Output: Nothing.
176     */
177    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
178    public static final String ACTION_BLUETOOTH_SETTINGS =
179            "android.settings.BLUETOOTH_SETTINGS";
180
181    /**
182     * Activity Action: Show settings to allow configuration of date and time.
183     * <p>
184     * In some cases, a matching Activity may not exist, so ensure you
185     * safeguard against this.
186     * <p>
187     * Input: Nothing.
188     * <p>
189     * Output: Nothing.
190     */
191    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
192    public static final String ACTION_DATE_SETTINGS =
193            "android.settings.DATE_SETTINGS";
194
195    /**
196     * Activity Action: Show settings to allow configuration of sound and volume.
197     * <p>
198     * In some cases, a matching Activity may not exist, so ensure you
199     * safeguard against this.
200     * <p>
201     * Input: Nothing.
202     * <p>
203     * Output: Nothing.
204     */
205    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
206    public static final String ACTION_SOUND_SETTINGS =
207            "android.settings.SOUND_SETTINGS";
208
209    /**
210     * Activity Action: Show settings to allow configuration of display.
211     * <p>
212     * In some cases, a matching Activity may not exist, so ensure you
213     * safeguard against this.
214     * <p>
215     * Input: Nothing.
216     * <p>
217     * Output: Nothing.
218     */
219    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
220    public static final String ACTION_DISPLAY_SETTINGS =
221            "android.settings.DISPLAY_SETTINGS";
222
223    /**
224     * Activity Action: Show settings to allow configuration of locale.
225     * <p>
226     * In some cases, a matching Activity may not exist, so ensure you
227     * safeguard against this.
228     * <p>
229     * Input: Nothing.
230     * <p>
231     * Output: Nothing.
232     */
233    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
234    public static final String ACTION_LOCALE_SETTINGS =
235            "android.settings.LOCALE_SETTINGS";
236
237    /**
238     * Activity Action: Show settings to configure input methods, in particular
239     * allowing the user to enable input methods.
240     * <p>
241     * In some cases, a matching Activity may not exist, so ensure you
242     * safeguard against this.
243     * <p>
244     * Input: Nothing.
245     * <p>
246     * Output: Nothing.
247     */
248    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
249    public static final String ACTION_INPUT_METHOD_SETTINGS =
250            "android.settings.INPUT_METHOD_SETTINGS";
251
252    /**
253     * Activity Action: Show settings to manage the user input dictionary.
254     * <p>
255     * In some cases, a matching Activity may not exist, so ensure you
256     * safeguard against this.
257     * <p>
258     * Input: Nothing.
259     * <p>
260     * Output: Nothing.
261     */
262    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
263    public static final String ACTION_USER_DICTIONARY_SETTINGS =
264            "android.settings.USER_DICTIONARY_SETTINGS";
265
266    /**
267     * Activity Action: Show settings to allow configuration of application-related settings.
268     * <p>
269     * In some cases, a matching Activity may not exist, so ensure you
270     * safeguard against this.
271     * <p>
272     * Input: Nothing.
273     * <p>
274     * Output: Nothing.
275     */
276    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
277    public static final String ACTION_APPLICATION_SETTINGS =
278            "android.settings.APPLICATION_SETTINGS";
279
280    /**
281     * Activity Action: Show settings to allow configuration of application
282     * development-related settings.
283     * <p>
284     * In some cases, a matching Activity may not exist, so ensure you safeguard
285     * against this.
286     * <p>
287     * Input: Nothing.
288     * <p>
289     * Output: Nothing.
290     */
291    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
292    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
293            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
294
295    /**
296     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
297     * <p>
298     * In some cases, a matching Activity may not exist, so ensure you
299     * safeguard against this.
300     * <p>
301     * Input: Nothing.
302     * <p>
303     * Output: Nothing.
304     */
305    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
306    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
307            "android.settings.QUICK_LAUNCH_SETTINGS";
308
309    /**
310     * Activity Action: Show settings to manage installed applications.
311     * <p>
312     * In some cases, a matching Activity may not exist, so ensure you
313     * safeguard against this.
314     * <p>
315     * Input: Nothing.
316     * <p>
317     * Output: Nothing.
318     */
319    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
320    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
321            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
322
323    /**
324     * Activity Action: Show settings for system update functionality.
325     * <p>
326     * In some cases, a matching Activity may not exist, so ensure you
327     * safeguard against this.
328     * <p>
329     * Input: Nothing.
330     * <p>
331     * Output: Nothing.
332     *
333     * @hide
334     */
335    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
336    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
337            "android.settings.SYSTEM_UPDATE_SETTINGS";
338
339    /**
340     * Activity Action: Show settings to allow configuration of sync settings.
341     * <p>
342     * In some cases, a matching Activity may not exist, so ensure you
343     * safeguard against this.
344     * <p>
345     * Input: Nothing.
346     * <p>
347     * Output: Nothing.
348     */
349    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
350    public static final String ACTION_SYNC_SETTINGS =
351            "android.settings.SYNC_SETTINGS";
352
353    /**
354     * Activity Action: Show settings for selecting the network operator.
355     * <p>
356     * In some cases, a matching Activity may not exist, so ensure you
357     * safeguard against this.
358     * <p>
359     * Input: Nothing.
360     * <p>
361     * Output: Nothing.
362     */
363    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
364    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
365            "android.settings.NETWORK_OPERATOR_SETTINGS";
366
367    /**
368     * Activity Action: Show settings for selection of 2G/3G.
369     * <p>
370     * In some cases, a matching Activity may not exist, so ensure you
371     * safeguard against this.
372     * <p>
373     * Input: Nothing.
374     * <p>
375     * Output: Nothing.
376     */
377    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
378    public static final String ACTION_DATA_ROAMING_SETTINGS =
379            "android.settings.DATA_ROAMING_SETTINGS";
380
381    /**
382     * Activity Action: Show settings for internal storage.
383     * <p>
384     * In some cases, a matching Activity may not exist, so ensure you
385     * safeguard against this.
386     * <p>
387     * Input: Nothing.
388     * <p>
389     * Output: Nothing.
390     */
391    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
392    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
393            "android.settings.INTERNAL_STORAGE_SETTINGS";
394    /**
395     * Activity Action: Show settings for memory card storage.
396     * <p>
397     * In some cases, a matching Activity may not exist, so ensure you
398     * safeguard against this.
399     * <p>
400     * Input: Nothing.
401     * <p>
402     * Output: Nothing.
403     */
404    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
405    public static final String ACTION_MEMORY_CARD_SETTINGS =
406            "android.settings.MEMORY_CARD_SETTINGS";
407
408    // End of Intent actions for Settings
409
410    private static final String JID_RESOURCE_PREFIX = "android";
411
412    public static final String AUTHORITY = "settings";
413
414    private static final String TAG = "Settings";
415
416    private static String sJidResource = null;
417
418    public static class SettingNotFoundException extends AndroidException {
419        public SettingNotFoundException(String msg) {
420            super(msg);
421        }
422    }
423
424    /**
425     * Common base for tables of name/value settings.
426     */
427    public static class NameValueTable implements BaseColumns {
428        public static final String NAME = "name";
429        public static final String VALUE = "value";
430
431        protected static boolean putString(ContentResolver resolver, Uri uri,
432                String name, String value) {
433            // The database will take care of replacing duplicates.
434            try {
435                ContentValues values = new ContentValues();
436                values.put(NAME, name);
437                values.put(VALUE, value);
438                resolver.insert(uri, values);
439                return true;
440            } catch (SQLException e) {
441                Log.e(TAG, "Can't set key " + name + " in " + uri, e);
442                return false;
443            }
444        }
445
446        public static Uri getUriFor(Uri uri, String name) {
447            return Uri.withAppendedPath(uri, name);
448        }
449    }
450
451    private static class NameValueCache {
452        private final String mVersionSystemProperty;
453        private final HashMap<String, String> mValues = Maps.newHashMap();
454        private long mValuesVersion = 0;
455        private final Uri mUri;
456
457        NameValueCache(String versionSystemProperty, Uri uri) {
458            mVersionSystemProperty = versionSystemProperty;
459            mUri = uri;
460        }
461
462        String getString(ContentResolver cr, String name) {
463            long newValuesVersion = SystemProperties.getLong(mVersionSystemProperty, 0);
464            if (mValuesVersion != newValuesVersion) {
465                mValues.clear();
466                mValuesVersion = newValuesVersion;
467            }
468            if (!mValues.containsKey(name)) {
469                String value = null;
470                Cursor c = null;
471                try {
472                    c = cr.query(mUri, new String[] { Settings.NameValueTable.VALUE },
473                            Settings.NameValueTable.NAME + "=?", new String[]{name}, null);
474                    if (c != null && c.moveToNext()) value = c.getString(0);
475                    mValues.put(name, value);
476                } catch (SQLException e) {
477                    // SQL error: return null, but don't cache it.
478                    Log.e(TAG, "Can't get key " + name + " from " + mUri, e);
479                } finally {
480                    if (c != null) c.close();
481                }
482                return value;
483            } else {
484                return mValues.get(name);
485            }
486        }
487    }
488
489    /**
490     * System settings, containing miscellaneous system preferences.  This
491     * table holds simple name/value pairs.  There are convenience
492     * functions for accessing individual settings entries.
493     */
494    public static final class System extends NameValueTable {
495        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_system_version";
496
497        private static volatile NameValueCache mNameValueCache = null;
498
499        private static final HashSet<String> MOVED_TO_SECURE;
500        static {
501            MOVED_TO_SECURE = new HashSet<String>(30);
502            MOVED_TO_SECURE.add(Secure.ADB_ENABLED);
503            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
504            MOVED_TO_SECURE.add(Secure.BLUETOOTH_ON);
505            MOVED_TO_SECURE.add(Secure.DATA_ROAMING);
506            MOVED_TO_SECURE.add(Secure.DEVICE_PROVISIONED);
507            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
508            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
509            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
510            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
511            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
512            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
513            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
514            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
515            MOVED_TO_SECURE.add(Secure.USB_MASS_STORAGE_ENABLED);
516            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
517            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
518            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
519            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
520            MOVED_TO_SECURE.add(Secure.WIFI_ON);
521            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
522            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
523            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
524            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
525            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
526            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
527            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
528            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
529            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
530            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
531            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
532        }
533
534        /**
535         * Look up a name in the database.
536         * @param resolver to access the database with
537         * @param name to look up in the table
538         * @return the corresponding value, or null if not present
539         */
540        public synchronized static String getString(ContentResolver resolver, String name) {
541            if (MOVED_TO_SECURE.contains(name)) {
542                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
543                        + " to android.provider.Settings.Secure, returning read-only value.");
544                return Secure.getString(resolver, name);
545            }
546            if (mNameValueCache == null) {
547                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
548            }
549            return mNameValueCache.getString(resolver, name);
550        }
551
552        /**
553         * Store a name/value pair into the database.
554         * @param resolver to access the database with
555         * @param name to store
556         * @param value to associate with the name
557         * @return true if the value was set, false on database errors
558         */
559        public static boolean putString(ContentResolver resolver, String name, String value) {
560            if (MOVED_TO_SECURE.contains(name)) {
561                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
562                        + " to android.provider.Settings.Secure, value is unchanged.");
563                return false;
564            }
565            return putString(resolver, CONTENT_URI, name, value);
566        }
567
568        /**
569         * Construct the content URI for a particular name/value pair,
570         * useful for monitoring changes with a ContentObserver.
571         * @param name to look up in the table
572         * @return the corresponding content URI, or null if not present
573         */
574        public static Uri getUriFor(String name) {
575            if (MOVED_TO_SECURE.contains(name)) {
576                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
577                    + " to android.provider.Settings.Secure, returning Secure URI.");
578                return Secure.getUriFor(Secure.CONTENT_URI, name);
579            }
580            return getUriFor(CONTENT_URI, name);
581        }
582
583        /**
584         * Convenience function for retrieving a single system settings value
585         * as an integer.  Note that internally setting values are always
586         * stored as strings; this function converts the string to an integer
587         * for you.  The default value will be returned if the setting is
588         * not defined or not an integer.
589         *
590         * @param cr The ContentResolver to access.
591         * @param name The name of the setting to retrieve.
592         * @param def Value to return if the setting is not defined.
593         *
594         * @return The setting's current value, or 'def' if it is not defined
595         * or not a valid integer.
596         */
597        public static int getInt(ContentResolver cr, String name, int def) {
598            String v = getString(cr, name);
599            try {
600                return v != null ? Integer.parseInt(v) : def;
601            } catch (NumberFormatException e) {
602                return def;
603            }
604        }
605
606        /**
607         * Convenience function for retrieving a single system settings value
608         * as an integer.  Note that internally setting values are always
609         * stored as strings; this function converts the string to an integer
610         * for you.
611         * <p>
612         * This version does not take a default value.  If the setting has not
613         * been set, or the string value is not a number,
614         * it throws {@link SettingNotFoundException}.
615         *
616         * @param cr The ContentResolver to access.
617         * @param name The name of the setting to retrieve.
618         *
619         * @throws SettingNotFoundException Thrown if a setting by the given
620         * name can't be found or the setting value is not an integer.
621         *
622         * @return The setting's current value.
623         */
624        public static int getInt(ContentResolver cr, String name)
625                throws SettingNotFoundException {
626            String v = getString(cr, name);
627            try {
628                return Integer.parseInt(v);
629            } catch (NumberFormatException e) {
630                throw new SettingNotFoundException(name);
631            }
632        }
633
634        /**
635         * Convenience function for updating a single settings value as an
636         * integer. This will either create a new entry in the table if the
637         * given name does not exist, or modify the value of the existing row
638         * with that name.  Note that internally setting values are always
639         * stored as strings, so this function converts the given value to a
640         * string before storing it.
641         *
642         * @param cr The ContentResolver to access.
643         * @param name The name of the setting to modify.
644         * @param value The new value for the setting.
645         * @return true if the value was set, false on database errors
646         */
647        public static boolean putInt(ContentResolver cr, String name, int value) {
648            return putString(cr, name, Integer.toString(value));
649        }
650
651        /**
652         * Convenience function for retrieving a single system settings value
653         * as a {@code long}.  Note that internally setting values are always
654         * stored as strings; this function converts the string to a {@code long}
655         * for you.  The default value will be returned if the setting is
656         * not defined or not a {@code long}.
657         *
658         * @param cr The ContentResolver to access.
659         * @param name The name of the setting to retrieve.
660         * @param def Value to return if the setting is not defined.
661         *
662         * @return The setting's current value, or 'def' if it is not defined
663         * or not a valid {@code long}.
664         */
665        public static long getLong(ContentResolver cr, String name, long def) {
666            String valString = getString(cr, name);
667            long value;
668            try {
669                value = valString != null ? Long.parseLong(valString) : def;
670            } catch (NumberFormatException e) {
671                value = def;
672            }
673            return value;
674        }
675
676        /**
677         * Convenience function for retrieving a single system settings value
678         * as a {@code long}.  Note that internally setting values are always
679         * stored as strings; this function converts the string to a {@code long}
680         * for you.
681         * <p>
682         * This version does not take a default value.  If the setting has not
683         * been set, or the string value is not a number,
684         * it throws {@link SettingNotFoundException}.
685         *
686         * @param cr The ContentResolver to access.
687         * @param name The name of the setting to retrieve.
688         *
689         * @return The setting's current value.
690         * @throws SettingNotFoundException Thrown if a setting by the given
691         * name can't be found or the setting value is not an integer.
692         */
693        public static long getLong(ContentResolver cr, String name)
694                throws SettingNotFoundException {
695            String valString = getString(cr, name);
696            try {
697                return Long.parseLong(valString);
698            } catch (NumberFormatException e) {
699                throw new SettingNotFoundException(name);
700            }
701        }
702
703        /**
704         * Convenience function for updating a single settings value as a long
705         * integer. This will either create a new entry in the table if the
706         * given name does not exist, or modify the value of the existing row
707         * with that name.  Note that internally setting values are always
708         * stored as strings, so this function converts the given value to a
709         * string before storing it.
710         *
711         * @param cr The ContentResolver to access.
712         * @param name The name of the setting to modify.
713         * @param value The new value for the setting.
714         * @return true if the value was set, false on database errors
715         */
716        public static boolean putLong(ContentResolver cr, String name, long value) {
717            return putString(cr, name, Long.toString(value));
718        }
719
720        /**
721         * Convenience function for retrieving a single system settings value
722         * as a floating point number.  Note that internally setting values are
723         * always stored as strings; this function converts the string to an
724         * float for you. The default value will be returned if the setting
725         * is not defined or not a valid float.
726         *
727         * @param cr The ContentResolver to access.
728         * @param name The name of the setting to retrieve.
729         * @param def Value to return if the setting is not defined.
730         *
731         * @return The setting's current value, or 'def' if it is not defined
732         * or not a valid float.
733         */
734        public static float getFloat(ContentResolver cr, String name, float def) {
735            String v = getString(cr, name);
736            try {
737                return v != null ? Float.parseFloat(v) : def;
738            } catch (NumberFormatException e) {
739                return def;
740            }
741        }
742
743        /**
744         * Convenience function for retrieving a single system settings value
745         * as a float.  Note that internally setting values are always
746         * stored as strings; this function converts the string to a float
747         * for you.
748         * <p>
749         * This version does not take a default value.  If the setting has not
750         * been set, or the string value is not a number,
751         * it throws {@link SettingNotFoundException}.
752         *
753         * @param cr The ContentResolver to access.
754         * @param name The name of the setting to retrieve.
755         *
756         * @throws SettingNotFoundException Thrown if a setting by the given
757         * name can't be found or the setting value is not a float.
758         *
759         * @return The setting's current value.
760         */
761        public static float getFloat(ContentResolver cr, String name)
762                throws SettingNotFoundException {
763            String v = getString(cr, name);
764            try {
765                return Float.parseFloat(v);
766            } catch (NumberFormatException e) {
767                throw new SettingNotFoundException(name);
768            }
769        }
770
771        /**
772         * Convenience function for updating a single settings value as a
773         * floating point number. This will either create a new entry in the
774         * table if the given name does not exist, or modify the value of the
775         * existing row with that name.  Note that internally setting values
776         * are always stored as strings, so this function converts the given
777         * value to a string before storing it.
778         *
779         * @param cr The ContentResolver to access.
780         * @param name The name of the setting to modify.
781         * @param value The new value for the setting.
782         * @return true if the value was set, false on database errors
783         */
784        public static boolean putFloat(ContentResolver cr, String name, float value) {
785            return putString(cr, name, Float.toString(value));
786        }
787
788        /**
789         * Convenience function to read all of the current
790         * configuration-related settings into a
791         * {@link Configuration} object.
792         *
793         * @param cr The ContentResolver to access.
794         * @param outConfig Where to place the configuration settings.
795         */
796        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
797            outConfig.fontScale = Settings.System.getFloat(
798                cr, FONT_SCALE, outConfig.fontScale);
799            if (outConfig.fontScale < 0) {
800                outConfig.fontScale = 1;
801            }
802        }
803
804        /**
805         * Convenience function to write a batch of configuration-related
806         * settings from a {@link Configuration} object.
807         *
808         * @param cr The ContentResolver to access.
809         * @param config The settings to write.
810         * @return true if the values were set, false on database errors
811         */
812        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
813            return Settings.System.putFloat(cr, FONT_SCALE, config.fontScale);
814        }
815
816        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
817            return getInt(cr, SHOW_GTALK_SERVICE_STATUS, 0) != 0;
818        }
819
820        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
821            putInt(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0);
822        }
823
824        /**
825         * The content:// style URL for this table
826         */
827        public static final Uri CONTENT_URI =
828            Uri.parse("content://" + AUTHORITY + "/system");
829
830        /**
831         * Whether we keep the device on while the device is plugged in.
832         * Supported values are:
833         * <ul>
834         * <li>{@code 0} to never stay on while plugged in</li>
835         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
836         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
837         * </ul>
838         * These values can be OR-ed together.
839         */
840        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
841
842        /**
843         * What happens when the user presses the end call button if they're not
844         * on a call.<br/>
845         * <b>Values:</b><br/>
846         * 0 - The end button does nothing.<br/>
847         * 1 - The end button goes to the home screen.<br/>
848         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
849         * 3 - The end button goes to the home screen.  If the user is already on the
850         * home screen, it puts the device to sleep.
851         */
852        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
853
854        /**
855         * Whether Airplane Mode is on.
856         */
857        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
858
859        /**
860         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
861         */
862        public static final String RADIO_BLUETOOTH = "bluetooth";
863
864        /**
865         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
866         */
867        public static final String RADIO_WIFI = "wifi";
868
869        /**
870         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
871         */
872        public static final String RADIO_CELL = "cell";
873
874        /**
875         * A comma separated list of radios that need to be disabled when airplane mode
876         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
877         * included in the comma separated list.
878         */
879        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
880
881        /**
882         * The policy for deciding when Wi-Fi should go to sleep (which will in
883         * turn switch to using the mobile data as an Internet connection).
884         * <p>
885         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
886         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
887         * {@link #WIFI_SLEEP_POLICY_NEVER}.
888         */
889        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
890
891        /**
892         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
893         * policy, which is to sleep shortly after the turning off
894         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
895         */
896        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
897
898        /**
899         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
900         * the device is on battery, and never go to sleep when the device is
901         * plugged in.
902         */
903        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
904
905        /**
906         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
907         */
908        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
909
910        /**
911         * Whether to use static IP and other static network attributes.
912         * <p>
913         * Set to 1 for true and 0 for false.
914         */
915        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
916
917        /**
918         * The static IP address.
919         * <p>
920         * Example: "192.168.1.51"
921         */
922        public static final String WIFI_STATIC_IP = "wifi_static_ip";
923
924        /**
925         * If using static IP, the gateway's IP address.
926         * <p>
927         * Example: "192.168.1.1"
928         */
929        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
930
931        /**
932         * If using static IP, the net mask.
933         * <p>
934         * Example: "255.255.255.0"
935         */
936        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
937
938        /**
939         * If using static IP, the primary DNS's IP address.
940         * <p>
941         * Example: "192.168.1.1"
942         */
943        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
944
945        /**
946         * If using static IP, the secondary DNS's IP address.
947         * <p>
948         * Example: "192.168.1.2"
949         */
950        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
951
952        /**
953         * The number of radio channels that are allowed in the local
954         * 802.11 regulatory domain.
955         * @hide
956         */
957        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
958
959        /**
960         * Determines whether remote devices may discover and/or connect to
961         * this device.
962         * <P>Type: INT</P>
963         * 2 -- discoverable and connectable
964         * 1 -- connectable but not discoverable
965         * 0 -- neither connectable nor discoverable
966         */
967        public static final String BLUETOOTH_DISCOVERABILITY =
968            "bluetooth_discoverability";
969
970        /**
971         * Bluetooth discoverability timeout.  If this value is nonzero, then
972         * Bluetooth becomes discoverable for a certain number of seconds,
973         * after which is becomes simply connectable.  The value is in seconds.
974         */
975        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
976            "bluetooth_discoverability_timeout";
977
978        /**
979         * Whether autolock is enabled (0 = false, 1 = true)
980         */
981        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
982
983        /**
984         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
985         */
986        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
987
988        /**
989         * Whether lock pattern will vibrate as user enters (0 = false, 1 = true)
990         */
991        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
992            "lock_pattern_tactile_feedback_enabled";
993
994
995        /**
996         * A formatted string of the next alarm that is set, or the empty string
997         * if there is no alarm set.
998         */
999        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
1000
1001        /**
1002         * Scaling factor for fonts, float.
1003         */
1004        public static final String FONT_SCALE = "font_scale";
1005
1006        /**
1007         * Name of an application package to be debugged.
1008         */
1009        public static final String DEBUG_APP = "debug_app";
1010
1011        /**
1012         * If 1, when launching DEBUG_APP it will wait for the debugger before
1013         * starting user code.  If 0, it will run normally.
1014         */
1015        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
1016
1017        /**
1018         * Whether or not to dim the screen. 0=no  1=yes
1019         */
1020        public static final String DIM_SCREEN = "dim_screen";
1021
1022        /**
1023         * The timeout before the screen turns off.
1024         */
1025        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
1026
1027        /**
1028         * The screen backlight brightness between 0 and 255.
1029         */
1030        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
1031
1032        /**
1033         * Control whether the process CPU usage meter should be shown.
1034         */
1035        public static final String SHOW_PROCESSES = "show_processes";
1036
1037        /**
1038         * If 1, the activity manager will aggressively finish activities and
1039         * processes as soon as they are no longer needed.  If 0, the normal
1040         * extended lifetime is used.
1041         */
1042        public static final String ALWAYS_FINISH_ACTIVITIES =
1043                "always_finish_activities";
1044
1045
1046        /**
1047         * Ringer mode. This is used internally, changing this value will not
1048         * change the ringer mode. See AudioManager.
1049         */
1050        public static final String MODE_RINGER = "mode_ringer";
1051
1052        /**
1053         * Determines which streams are affected by ringer mode changes. The
1054         * stream type's bit should be set to 1 if it should be muted when going
1055         * into an inaudible ringer mode.
1056         */
1057        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
1058
1059         /**
1060          * Determines which streams are affected by mute. The
1061          * stream type's bit should be set to 1 if it should be muted when a mute request
1062          * is received.
1063          */
1064         public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
1065
1066        /**
1067         * Whether vibrate is on for different events. This is used internally,
1068         * changing this value will not change the vibrate. See AudioManager.
1069         */
1070        public static final String VIBRATE_ON = "vibrate_on";
1071
1072        /**
1073         * Ringer volume. This is used internally, changing this value will not
1074         * change the volume. See AudioManager.
1075         */
1076        public static final String VOLUME_RING = "volume_ring";
1077
1078        /**
1079         * System/notifications volume. This is used internally, changing this
1080         * value will not change the volume. See AudioManager.
1081         */
1082        public static final String VOLUME_SYSTEM = "volume_system";
1083
1084        /**
1085         * Voice call volume. This is used internally, changing this value will
1086         * not change the volume. See AudioManager.
1087         */
1088        public static final String VOLUME_VOICE = "volume_voice";
1089
1090        /**
1091         * Music/media/gaming volume. This is used internally, changing this
1092         * value will not change the volume. See AudioManager.
1093         */
1094        public static final String VOLUME_MUSIC = "volume_music";
1095
1096        /**
1097         * Alarm volume. This is used internally, changing this
1098         * value will not change the volume. See AudioManager.
1099         */
1100        public static final String VOLUME_ALARM = "volume_alarm";
1101
1102        /**
1103         * Notification volume. This is used internally, changing this
1104         * value will not change the volume. See AudioManager.
1105         */
1106        public static final String VOLUME_NOTIFICATION = "volume_notification";
1107
1108        /**
1109         * Whether the notifications should use the ring volume (value of 1) or
1110         * a separate notification volume (value of 0). In most cases, users
1111         * will have this enabled so the notification and ringer volumes will be
1112         * the same. However, power users can disable this and use the separate
1113         * notification volume control.
1114         * <p>
1115         * Note: This is a one-off setting that will be removed in the future
1116         * when there is profile support. For this reason, it is kept hidden
1117         * from the public APIs.
1118         *
1119         * @hide
1120         */
1121        public static final String NOTIFICATIONS_USE_RING_VOLUME =
1122            "notifications_use_ring_volume";
1123
1124        /**
1125         * The mapping of stream type (integer) to its setting.
1126         */
1127        public static final String[] VOLUME_SETTINGS = {
1128            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
1129            VOLUME_ALARM, VOLUME_NOTIFICATION
1130        };
1131
1132        /**
1133         * Appended to various volume related settings to record the previous
1134         * values before they the settings were affected by a silent/vibrate
1135         * ringer mode change.
1136         */
1137        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
1138
1139        /**
1140         * Persistent store for the system-wide default ringtone URI.
1141         * <p>
1142         * If you need to play the default ringtone at any given time, it is recommended
1143         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
1144         * to the set default ringtone at the time of playing.
1145         *
1146         * @see #DEFAULT_RINGTONE_URI
1147         */
1148        public static final String RINGTONE = "ringtone";
1149
1150        /**
1151         * A {@link Uri} that will point to the current default ringtone at any
1152         * given time.
1153         * <p>
1154         * If the current default ringtone is in the DRM provider and the caller
1155         * does not have permission, the exception will be a
1156         * FileNotFoundException.
1157         */
1158        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
1159
1160        /**
1161         * Persistent store for the system-wide default notification sound.
1162         *
1163         * @see #RINGTONE
1164         * @see #DEFAULT_NOTIFICATION_URI
1165         */
1166        public static final String NOTIFICATION_SOUND = "notification_sound";
1167
1168        /**
1169         * A {@link Uri} that will point to the current default notification
1170         * sound at any given time.
1171         *
1172         * @see #DEFAULT_RINGTONE_URI
1173         */
1174        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
1175
1176        /**
1177         * Persistent store for the system-wide default alarm alert.
1178         *
1179         * @see #RINGTONE
1180         * @see #DEFAULT_ALARM_ALERT_URI
1181         */
1182        public static final String ALARM_ALERT = "alarm_alert";
1183
1184        /**
1185         * A {@link Uri} that will point to the current default alarm alert at
1186         * any given time.
1187         *
1188         * @see #DEFAULT_ALARM_ALERT_URI
1189         */
1190        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
1191
1192        /**
1193         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
1194         */
1195        public static final String TEXT_AUTO_REPLACE = "auto_replace";
1196
1197        /**
1198         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
1199         */
1200        public static final String TEXT_AUTO_CAPS = "auto_caps";
1201
1202        /**
1203         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
1204         * feature converts two spaces to a "." and space.
1205         */
1206        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
1207
1208        /**
1209         * Setting to showing password characters in text editors. 1 = On, 0 = Off
1210         */
1211        public static final String TEXT_SHOW_PASSWORD = "show_password";
1212
1213        public static final String SHOW_GTALK_SERVICE_STATUS =
1214                "SHOW_GTALK_SERVICE_STATUS";
1215
1216        /**
1217         * Name of activity to use for wallpaper on the home screen.
1218         */
1219        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
1220
1221        /**
1222         * Value to specify if the user prefers the date, time and time zone
1223         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
1224         */
1225        public static final String AUTO_TIME = "auto_time";
1226
1227        /**
1228         * Display times as 12 or 24 hours
1229         *   12
1230         *   24
1231         */
1232        public static final String TIME_12_24 = "time_12_24";
1233
1234        /**
1235         * Date format string
1236         *   mm/dd/yyyy
1237         *   dd/mm/yyyy
1238         *   yyyy/mm/dd
1239         */
1240        public static final String DATE_FORMAT = "date_format";
1241
1242        /**
1243         * Whether the setup wizard has been run before (on first boot), or if
1244         * it still needs to be run.
1245         *
1246         * nonzero = it has been run in the past
1247         * 0 = it has not been run in the past
1248         */
1249        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
1250
1251        /**
1252         * Scaling factor for normal window animations. Setting to 0 will disable window
1253         * animations.
1254         */
1255        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
1256
1257        /**
1258         * Scaling factor for activity transition animations. Setting to 0 will disable window
1259         * animations.
1260         */
1261        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
1262
1263        /**
1264         * Scaling factor for normal window animations. Setting to 0 will disable window
1265         * animations.
1266         * @hide
1267         */
1268        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
1269
1270        /**
1271         * Control whether the accelerometer will be used to change screen
1272         * orientation.  If 0, it will not be used unless explicitly requested
1273         * by the application; if 1, it will be used by default unless explicitly
1274         * disabled by the application.
1275         */
1276        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
1277
1278        /**
1279         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
1280         * boolean (1 or 0).
1281         */
1282        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
1283
1284        /**
1285         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
1286         * boolean (1 or 0).
1287         */
1288        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
1289
1290        /**
1291         * Whether the haptic feedback (long presses, ...) are enabled. The value is
1292         * boolean (1 or 0).
1293         */
1294        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
1295
1296        // Settings moved to Settings.Secure
1297
1298        /**
1299         * @deprecated Use {@link android.provider.Settings.Secure#ADB_ENABLED}
1300         * instead
1301         */
1302        @Deprecated
1303        public static final String ADB_ENABLED = Secure.ADB_ENABLED;
1304
1305        /**
1306         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
1307         */
1308        @Deprecated
1309        public static final String ANDROID_ID = Secure.ANDROID_ID;
1310
1311        /**
1312         * @deprecated Use {@link android.provider.Settings.Secure#BLUETOOTH_ON} instead
1313         */
1314        @Deprecated
1315        public static final String BLUETOOTH_ON = Secure.BLUETOOTH_ON;
1316
1317        /**
1318         * @deprecated Use {@link android.provider.Settings.Secure#DATA_ROAMING} instead
1319         */
1320        @Deprecated
1321        public static final String DATA_ROAMING = Secure.DATA_ROAMING;
1322
1323        /**
1324         * @deprecated Use {@link android.provider.Settings.Secure#DEVICE_PROVISIONED} instead
1325         */
1326        @Deprecated
1327        public static final String DEVICE_PROVISIONED = Secure.DEVICE_PROVISIONED;
1328
1329        /**
1330         * @deprecated Use {@link android.provider.Settings.Secure#HTTP_PROXY} instead
1331         */
1332        @Deprecated
1333        public static final String HTTP_PROXY = Secure.HTTP_PROXY;
1334
1335        /**
1336         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
1337         */
1338        @Deprecated
1339        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
1340
1341        /**
1342         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
1343         * instead
1344         */
1345        @Deprecated
1346        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
1347
1348        /**
1349         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
1350         */
1351        @Deprecated
1352        public static final String LOGGING_ID = Secure.LOGGING_ID;
1353
1354        /**
1355         * @deprecated Use {@link android.provider.Settings.Secure#NETWORK_PREFERENCE} instead
1356         */
1357        @Deprecated
1358        public static final String NETWORK_PREFERENCE = Secure.NETWORK_PREFERENCE;
1359
1360        /**
1361         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
1362         * instead
1363         */
1364        @Deprecated
1365        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
1366
1367        /**
1368         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
1369         * instead
1370         */
1371        @Deprecated
1372        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
1373
1374        /**
1375         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
1376         * instead
1377         */
1378        @Deprecated
1379        public static final String PARENTAL_CONTROL_REDIRECT_URL =
1380            Secure.PARENTAL_CONTROL_REDIRECT_URL;
1381
1382        /**
1383         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
1384         */
1385        @Deprecated
1386        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
1387
1388        /**
1389         * @deprecated Use {@link android.provider.Settings.Secure#USB_MASS_STORAGE_ENABLED} instead
1390         */
1391        @Deprecated
1392        public static final String USB_MASS_STORAGE_ENABLED = Secure.USB_MASS_STORAGE_ENABLED;
1393
1394        /**
1395         * @deprecated Use {@link android.provider.Settings.Secure#USE_GOOGLE_MAIL} instead
1396         */
1397        @Deprecated
1398        public static final String USE_GOOGLE_MAIL = Secure.USE_GOOGLE_MAIL;
1399
1400//       /**
1401//         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT}
1402//         * instead
1403//         */
1404        @Deprecated
1405        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Secure.WIFI_MAX_DHCP_RETRY_COUNT;
1406
1407//        /**
1408//         * @deprecated Use
1409//         * {@link android.provider.Settings.Secure#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS}
1410//         * instead
1411//         */
1412        @Deprecated
1413        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
1414                Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
1415
1416        /**
1417         * @deprecated Use
1418         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
1419         */
1420        @Deprecated
1421        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1422            Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
1423
1424        /**
1425         * @deprecated Use
1426         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
1427         */
1428        @Deprecated
1429        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1430            Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
1431
1432        /**
1433         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_NUM_OPEN_NETWORKS_KEPT}
1434         * instead
1435         */
1436        @Deprecated
1437        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Secure.WIFI_NUM_OPEN_NETWORKS_KEPT;
1438
1439        /**
1440         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_ON} instead
1441         */
1442        @Deprecated
1443        public static final String WIFI_ON = Secure.WIFI_ON;
1444
1445        /**
1446         * @deprecated Use
1447         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
1448         * instead
1449         */
1450        @Deprecated
1451        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
1452                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
1453
1454        /**
1455         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
1456         */
1457        @Deprecated
1458        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
1459
1460        /**
1461         * @deprecated Use
1462         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
1463         */
1464        @Deprecated
1465        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
1466                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
1467
1468        /**
1469         * @deprecated Use
1470         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
1471         */
1472        @Deprecated
1473        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
1474                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
1475
1476        /**
1477         * @deprecated Use
1478         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
1479         * instead
1480         */
1481        @Deprecated
1482        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
1483                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
1484
1485        /**
1486         * @deprecated Use
1487         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
1488         */
1489        @Deprecated
1490        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
1491            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
1492
1493        /**
1494         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
1495         * instead
1496         */
1497        @Deprecated
1498        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
1499
1500        /**
1501         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ON} instead
1502         */
1503        @Deprecated
1504        public static final String WIFI_WATCHDOG_ON = Secure.WIFI_WATCHDOG_ON;
1505
1506        /**
1507         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
1508         */
1509        @Deprecated
1510        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
1511
1512        /**
1513         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
1514         * instead
1515         */
1516        @Deprecated
1517        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
1518
1519        /**
1520         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
1521         * instead
1522         */
1523        @Deprecated
1524        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
1525            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
1526    }
1527
1528    /**
1529     * Secure system settings, containing system preferences that applications
1530     * can read but are not allowed to write.  These are for preferences that
1531     * the user must explicitly modify through the system UI or specialized
1532     * APIs for those values, not modified directly by applications.
1533     */
1534    public static final class Secure extends NameValueTable {
1535        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_secure_version";
1536
1537        private static volatile NameValueCache mNameValueCache = null;
1538
1539        /**
1540         * Look up a name in the database.
1541         * @param resolver to access the database with
1542         * @param name to look up in the table
1543         * @return the corresponding value, or null if not present
1544         */
1545        public synchronized static String getString(ContentResolver resolver, String name) {
1546            if (mNameValueCache == null) {
1547                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
1548            }
1549            return mNameValueCache.getString(resolver, name);
1550        }
1551
1552        /**
1553         * Store a name/value pair into the database.
1554         * @param resolver to access the database with
1555         * @param name to store
1556         * @param value to associate with the name
1557         * @return true if the value was set, false on database errors
1558         */
1559        public static boolean putString(ContentResolver resolver,
1560                String name, String value) {
1561            return putString(resolver, CONTENT_URI, name, value);
1562        }
1563
1564        /**
1565         * Construct the content URI for a particular name/value pair,
1566         * useful for monitoring changes with a ContentObserver.
1567         * @param name to look up in the table
1568         * @return the corresponding content URI, or null if not present
1569         */
1570        public static Uri getUriFor(String name) {
1571            return getUriFor(CONTENT_URI, name);
1572        }
1573
1574        /**
1575         * Convenience function for retrieving a single secure settings value
1576         * as an integer.  Note that internally setting values are always
1577         * stored as strings; this function converts the string to an integer
1578         * for you.  The default value will be returned if the setting is
1579         * not defined or not an integer.
1580         *
1581         * @param cr The ContentResolver to access.
1582         * @param name The name of the setting to retrieve.
1583         * @param def Value to return if the setting is not defined.
1584         *
1585         * @return The setting's current value, or 'def' if it is not defined
1586         * or not a valid integer.
1587         */
1588        public static int getInt(ContentResolver cr, String name, int def) {
1589            String v = getString(cr, name);
1590            try {
1591                return v != null ? Integer.parseInt(v) : def;
1592            } catch (NumberFormatException e) {
1593                return def;
1594            }
1595        }
1596
1597        /**
1598         * Convenience function for retrieving a single secure settings value
1599         * as an integer.  Note that internally setting values are always
1600         * stored as strings; this function converts the string to an integer
1601         * for you.
1602         * <p>
1603         * This version does not take a default value.  If the setting has not
1604         * been set, or the string value is not a number,
1605         * it throws {@link SettingNotFoundException}.
1606         *
1607         * @param cr The ContentResolver to access.
1608         * @param name The name of the setting to retrieve.
1609         *
1610         * @throws SettingNotFoundException Thrown if a setting by the given
1611         * name can't be found or the setting value is not an integer.
1612         *
1613         * @return The setting's current value.
1614         */
1615        public static int getInt(ContentResolver cr, String name)
1616                throws SettingNotFoundException {
1617            String v = getString(cr, name);
1618            try {
1619                return Integer.parseInt(v);
1620            } catch (NumberFormatException e) {
1621                throw new SettingNotFoundException(name);
1622            }
1623        }
1624
1625        /**
1626         * Convenience function for updating a single settings value as an
1627         * integer. This will either create a new entry in the table if the
1628         * given name does not exist, or modify the value of the existing row
1629         * with that name.  Note that internally setting values are always
1630         * stored as strings, so this function converts the given value to a
1631         * string before storing it.
1632         *
1633         * @param cr The ContentResolver to access.
1634         * @param name The name of the setting to modify.
1635         * @param value The new value for the setting.
1636         * @return true if the value was set, false on database errors
1637         */
1638        public static boolean putInt(ContentResolver cr, String name, int value) {
1639            return putString(cr, name, Integer.toString(value));
1640        }
1641
1642        /**
1643         * Convenience function for retrieving a single secure settings value
1644         * as a {@code long}.  Note that internally setting values are always
1645         * stored as strings; this function converts the string to a {@code long}
1646         * for you.  The default value will be returned if the setting is
1647         * not defined or not a {@code long}.
1648         *
1649         * @param cr The ContentResolver to access.
1650         * @param name The name of the setting to retrieve.
1651         * @param def Value to return if the setting is not defined.
1652         *
1653         * @return The setting's current value, or 'def' if it is not defined
1654         * or not a valid {@code long}.
1655         */
1656        public static long getLong(ContentResolver cr, String name, long def) {
1657            String valString = getString(cr, name);
1658            long value;
1659            try {
1660                value = valString != null ? Long.parseLong(valString) : def;
1661            } catch (NumberFormatException e) {
1662                value = def;
1663            }
1664            return value;
1665        }
1666
1667        /**
1668         * Convenience function for retrieving a single secure settings value
1669         * as a {@code long}.  Note that internally setting values are always
1670         * stored as strings; this function converts the string to a {@code long}
1671         * for you.
1672         * <p>
1673         * This version does not take a default value.  If the setting has not
1674         * been set, or the string value is not a number,
1675         * it throws {@link SettingNotFoundException}.
1676         *
1677         * @param cr The ContentResolver to access.
1678         * @param name The name of the setting to retrieve.
1679         *
1680         * @return The setting's current value.
1681         * @throws SettingNotFoundException Thrown if a setting by the given
1682         * name can't be found or the setting value is not an integer.
1683         */
1684        public static long getLong(ContentResolver cr, String name)
1685                throws SettingNotFoundException {
1686            String valString = getString(cr, name);
1687            try {
1688                return Long.parseLong(valString);
1689            } catch (NumberFormatException e) {
1690                throw new SettingNotFoundException(name);
1691            }
1692        }
1693
1694        /**
1695         * Convenience function for updating a secure settings value as a long
1696         * integer. This will either create a new entry in the table if the
1697         * given name does not exist, or modify the value of the existing row
1698         * with that name.  Note that internally setting values are always
1699         * stored as strings, so this function converts the given value to a
1700         * string before storing it.
1701         *
1702         * @param cr The ContentResolver to access.
1703         * @param name The name of the setting to modify.
1704         * @param value The new value for the setting.
1705         * @return true if the value was set, false on database errors
1706         */
1707        public static boolean putLong(ContentResolver cr, String name, long value) {
1708            return putString(cr, name, Long.toString(value));
1709        }
1710
1711        /**
1712         * Convenience function for retrieving a single secure settings value
1713         * as a floating point number.  Note that internally setting values are
1714         * always stored as strings; this function converts the string to an
1715         * float for you. The default value will be returned if the setting
1716         * is not defined or not a valid float.
1717         *
1718         * @param cr The ContentResolver to access.
1719         * @param name The name of the setting to retrieve.
1720         * @param def Value to return if the setting is not defined.
1721         *
1722         * @return The setting's current value, or 'def' if it is not defined
1723         * or not a valid float.
1724         */
1725        public static float getFloat(ContentResolver cr, String name, float def) {
1726            String v = getString(cr, name);
1727            try {
1728                return v != null ? Float.parseFloat(v) : def;
1729            } catch (NumberFormatException e) {
1730                return def;
1731            }
1732        }
1733
1734        /**
1735         * Convenience function for retrieving a single secure settings value
1736         * as a float.  Note that internally setting values are always
1737         * stored as strings; this function converts the string to a float
1738         * for you.
1739         * <p>
1740         * This version does not take a default value.  If the setting has not
1741         * been set, or the string value is not a number,
1742         * it throws {@link SettingNotFoundException}.
1743         *
1744         * @param cr The ContentResolver to access.
1745         * @param name The name of the setting to retrieve.
1746         *
1747         * @throws SettingNotFoundException Thrown if a setting by the given
1748         * name can't be found or the setting value is not a float.
1749         *
1750         * @return The setting's current value.
1751         */
1752        public static float getFloat(ContentResolver cr, String name)
1753                throws SettingNotFoundException {
1754            String v = getString(cr, name);
1755            try {
1756                return Float.parseFloat(v);
1757            } catch (NumberFormatException e) {
1758                throw new SettingNotFoundException(name);
1759            }
1760        }
1761
1762        /**
1763         * Convenience function for updating a single settings value as a
1764         * floating point number. This will either create a new entry in the
1765         * table if the given name does not exist, or modify the value of the
1766         * existing row with that name.  Note that internally setting values
1767         * are always stored as strings, so this function converts the given
1768         * value to a string before storing it.
1769         *
1770         * @param cr The ContentResolver to access.
1771         * @param name The name of the setting to modify.
1772         * @param value The new value for the setting.
1773         * @return true if the value was set, false on database errors
1774         */
1775        public static boolean putFloat(ContentResolver cr, String name, float value) {
1776            return putString(cr, name, Float.toString(value));
1777        }
1778
1779        /**
1780         * The content:// style URL for this table
1781         */
1782        public static final Uri CONTENT_URI =
1783            Uri.parse("content://" + AUTHORITY + "/secure");
1784
1785        /**
1786         * Whether ADB is enabled.
1787         */
1788        public static final String ADB_ENABLED = "adb_enabled";
1789
1790        /**
1791         * Setting to allow mock locations and location provider status to be injected into the
1792         * LocationManager service for testing purposes during application development.  These
1793         * locations and status values  override actual location and status information generated
1794         * by network, gps, or other location providers.
1795         */
1796        public static final String ALLOW_MOCK_LOCATION = "mock_location";
1797
1798        /**
1799         * The Android ID (a unique 64-bit value) as a hex string.
1800         * Identical to that obtained by calling
1801         * GoogleLoginService.getAndroidId(); it is also placed here
1802         * so you can get it without binding to a service.
1803         */
1804        public static final String ANDROID_ID = "android_id";
1805
1806        /**
1807         * Whether bluetooth is enabled/disabled
1808         * 0=disabled. 1=enabled.
1809         */
1810        public static final String BLUETOOTH_ON = "bluetooth_on";
1811
1812        /**
1813         * Get the key that retrieves a bluetooth headset's priority.
1814         * @hide
1815         */
1816        public static final String getBluetoothHeadsetPriorityKey(String address) {
1817            return ("bluetooth_headset_priority_" + address.toUpperCase());
1818        }
1819
1820        /**
1821         * Get the key that retrieves a bluetooth a2dp sink's priority.
1822         * @hide
1823         */
1824        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
1825            return ("bluetooth_a2dp_sink_priority_" + address.toUpperCase());
1826        }
1827
1828        /**
1829         * Whether or not data roaming is enabled. (0 = false, 1 = true)
1830         */
1831        public static final String DATA_ROAMING = "data_roaming";
1832
1833        /**
1834         * Setting to record the input method used by default, holding the ID
1835         * of the desired method.
1836         */
1837        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
1838
1839        /**
1840         * Whether the device has been provisioned (0 = false, 1 = true)
1841         */
1842        public static final String DEVICE_PROVISIONED = "device_provisioned";
1843
1844        /**
1845         * List of input methods that are currently enabled.  This is a string
1846         * containing the IDs of all enabled input methods, each ID separated
1847         * by ':'.
1848         */
1849        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
1850
1851        /**
1852         * Host name and port for a user-selected proxy.
1853         */
1854        public static final String HTTP_PROXY = "http_proxy";
1855
1856        /**
1857         * Whether the package installer should allow installation of apps downloaded from
1858         * sources other than the Android Market (vending machine).
1859         *
1860         * 1 = allow installing from other sources
1861         * 0 = only allow installing from the Android Market
1862         */
1863        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
1864
1865        /**
1866         * Comma-separated list of location providers that activities may access.
1867         */
1868        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
1869
1870        /**
1871         * The Logging ID (a unique 64-bit value) as a hex string.
1872         * Used as a pseudonymous identifier for logging.
1873         * @deprecated This identifier is poorly initialized and has
1874         * many collisions.  It should not be used.
1875         */
1876        @Deprecated
1877        public static final String LOGGING_ID = "logging_id";
1878
1879        /**
1880         * The Logging ID (a unique 64-bit value) as a hex string.
1881         * Used as a pseudonymous identifier for logging.
1882         * @hide
1883         */
1884        public static final String LOGGING_ID2 = "logging_id2";
1885
1886        /**
1887         * User preference for which network(s) should be used. Only the
1888         * connectivity service should touch this.
1889         */
1890        public static final String NETWORK_PREFERENCE = "network_preference";
1891
1892        /**
1893         */
1894        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
1895
1896        /**
1897         */
1898        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
1899
1900        /**
1901         */
1902        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
1903
1904        /**
1905         * Settings classname to launch when Settings is clicked from All
1906         * Applications.  Needed because of user testing between the old
1907         * and new Settings apps.
1908         */
1909        // TODO: 881807
1910        public static final String SETTINGS_CLASSNAME = "settings_classname";
1911
1912        /**
1913         * USB Mass Storage Enabled
1914         */
1915        public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
1916
1917        /**
1918         * If this setting is set (to anything), then all references
1919         * to Gmail on the device must change to Google Mail.
1920         */
1921        public static final String USE_GOOGLE_MAIL = "use_google_mail";
1922
1923        /**
1924         * If accessibility is enabled.
1925         */
1926        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
1927
1928        /**
1929         * List of the enabled accessibility providers.
1930         */
1931        public static final String ENABLED_ACCESSIBILITY_SERVICES =
1932            "enabled_accessibility_services";
1933
1934        /**
1935         * Whether to notify the user of open networks.
1936         * <p>
1937         * If not connected and the scan results have an open network, we will
1938         * put this notification up. If we attempt to connect to a network or
1939         * the open network(s) disappear, we remove the notification. When we
1940         * show the notification, we will not show it again for
1941         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
1942         */
1943        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1944                "wifi_networks_available_notification_on";
1945
1946        /**
1947         * Delay (in seconds) before repeating the Wi-Fi networks available notification.
1948         * Connecting to a network will reset the timer.
1949         */
1950        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1951                "wifi_networks_available_repeat_delay";
1952
1953        /**
1954         * The number of radio channels that are allowed in the local
1955         * 802.11 regulatory domain.
1956         * @hide
1957         */
1958        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
1959
1960        /**
1961         * When the number of open networks exceeds this number, the
1962         * least-recently-used excess networks will be removed.
1963         */
1964        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
1965
1966        /**
1967         * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
1968         */
1969        public static final String WIFI_ON = "wifi_on";
1970
1971        /**
1972         * The acceptable packet loss percentage (range 0 - 100) before trying
1973         * another AP on the same network.
1974         */
1975        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
1976                "wifi_watchdog_acceptable_packet_loss_percentage";
1977
1978        /**
1979         * The number of access points required for a network in order for the
1980         * watchdog to monitor it.
1981         */
1982        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
1983
1984        /**
1985         * The delay between background checks.
1986         */
1987        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
1988                "wifi_watchdog_background_check_delay_ms";
1989
1990        /**
1991         * Whether the Wi-Fi watchdog is enabled for background checking even
1992         * after it thinks the user has connected to a good access point.
1993         */
1994        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
1995                "wifi_watchdog_background_check_enabled";
1996
1997        /**
1998         * The timeout for a background ping
1999         */
2000        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
2001                "wifi_watchdog_background_check_timeout_ms";
2002
2003        /**
2004         * The number of initial pings to perform that *may* be ignored if they
2005         * fail. Again, if these fail, they will *not* be used in packet loss
2006         * calculation. For example, one network always seemed to time out for
2007         * the first couple pings, so this is set to 3 by default.
2008         */
2009        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
2010            "wifi_watchdog_initial_ignored_ping_count";
2011
2012        /**
2013         * The maximum number of access points (per network) to attempt to test.
2014         * If this number is reached, the watchdog will no longer monitor the
2015         * initial connection state for the network. This is a safeguard for
2016         * networks containing multiple APs whose DNS does not respond to pings.
2017         */
2018        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
2019
2020        /**
2021         * Whether the Wi-Fi watchdog is enabled.
2022         */
2023        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
2024
2025        /**
2026         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
2027         */
2028        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
2029
2030        /**
2031         * The number of pings to test if an access point is a good connection.
2032         */
2033        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
2034
2035        /**
2036         * The delay between pings.
2037         */
2038        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
2039
2040        /**
2041         * The timeout per ping.
2042         */
2043        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
2044
2045        /**
2046         * The maximum number of times we will retry a connection to an access
2047         * point for which we have failed in acquiring an IP address from DHCP.
2048         * A value of N means that we will make N+1 connection attempts in all.
2049         */
2050        public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
2051
2052        /**
2053         * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
2054         * data connectivity to be established after a disconnect from Wi-Fi.
2055         */
2056        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
2057            "wifi_mobile_data_transition_wakelock_timeout_ms";
2058
2059        /**
2060         * Whether background data usage is allowed by the user. See
2061         * ConnectivityManager for more info.
2062         */
2063        public static final String BACKGROUND_DATA = "background_data";
2064
2065        /**
2066         * The CDMA roaming mode 0 = Home Networks, CDMA default
2067         *                       1 = Roaming on Affiliated networks
2068         *                       2 = Roaming on any networks
2069         * @hide
2070         */
2071        public static final String CDMA_ROAMING_MODE = "roaming_settings";
2072
2073        /**
2074         * The CDMA subscription mode 0 = RUIM/SIM (default)
2075         *                                1 = NV
2076         * @hide
2077         */
2078        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
2079
2080        /**
2081         * represents current active phone class
2082         * 1 = GSM-Phone, 0 = CDMA-Phone
2083         * @hide
2084         */
2085        public static final String CURRENT_ACTIVE_PHONE = "current_active_phone";
2086
2087        /**
2088         * The preferred network mode 7 = Global, CDMA default
2089         *                            4 = CDMA only
2090         *                            3 = GSM/UMTS only
2091         * @hide
2092         */
2093        public static final String PREFERRED_NETWORK_MODE =
2094                "preferred_network_mode";
2095
2096        /**
2097         * CDMA Cell Broadcast SMS
2098         *                            0 = CDMA Cell Broadcast SMS disabled
2099         *                            1 = CDMA Cell Broadcast SMS enabled
2100         * @hide
2101         */
2102        public static final String CDMA_CELL_BROADCAST_SMS =
2103                "cdma_cell_broadcast_sms";
2104
2105        /**
2106         * The cdma subscription 0 = Subscription from RUIM, when available
2107         *                       1 = Subscription from NV
2108         * @hide
2109         */
2110        public static final String PREFERRED_CDMA_SUBSCRIPTION =
2111                "preferred_cdma_subscription";
2112
2113        /**
2114         * Whether the enhanced voice privacy mode is enabled.
2115         * 0 = normal voice privacy
2116         * 1 = enhanced voice privacy
2117         * @hide
2118         */
2119        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
2120
2121        /**
2122         * Whether the TTY mode mode is enabled.
2123         * 0 = disabled
2124         * 1 = enabled
2125         * @hide
2126         */
2127        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
2128
2129        /**
2130         * Helper method for determining if a location provider is enabled.
2131         * @param cr the content resolver to use
2132         * @param provider the location provider to query
2133         * @return true if the provider is enabled
2134         *
2135         * @hide
2136         */
2137        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
2138            String allowedProviders = Settings.Secure.getString(cr, LOCATION_PROVIDERS_ALLOWED);
2139            if (allowedProviders != null) {
2140                return (allowedProviders.equals(provider) ||
2141                        allowedProviders.contains("," + provider + ",") ||
2142                        allowedProviders.startsWith(provider + ",") ||
2143                        allowedProviders.endsWith("," + provider));
2144            }
2145            return false;
2146        }
2147
2148        /**
2149         * Thread-safe method for enabling or disabling a single location provider.
2150         * @param cr the content resolver to use
2151         * @param provider the location provider to enable or disable
2152         * @param enabled true if the provider should be enabled
2153         *
2154         * @hide
2155         */
2156        public static final void setLocationProviderEnabled(ContentResolver cr,
2157                String provider, boolean enabled) {
2158            // to ensure thread safety, we write the provider name with a '+' or '-'
2159            // and let the SettingsProvider handle it rather than reading and modifying
2160            // the list of enabled providers.
2161            if (enabled) {
2162                provider = "+" + provider;
2163            } else {
2164                provider = "-" + provider;
2165            }
2166            putString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider);
2167        }
2168    }
2169
2170    /**
2171     * Gservices settings, containing the network names for Google's
2172     * various services. This table holds simple name/addr pairs.
2173     * Addresses can be accessed through the getString() method.
2174     *
2175     * TODO: This should move to partner/google/... somewhere.
2176     *
2177     * @hide
2178     */
2179    public static final class Gservices extends NameValueTable {
2180        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_gservices_version";
2181
2182        /**
2183         * Intent action broadcast when the Gservices table is updated by the server.
2184         * This is broadcast once after settings change (so many values may have been updated).
2185         */
2186        @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2187        public static final String CHANGED_ACTION =
2188            "com.google.gservices.intent.action.GSERVICES_CHANGED";
2189
2190        private static volatile NameValueCache mNameValueCache = null;
2191        private static final Object mNameValueCacheLock = new Object();
2192
2193        /**
2194         * Look up a name in the database.
2195         * @param resolver to access the database with
2196         * @param name to look up in the table
2197         * @return the corresponding value, or null if not present
2198         */
2199        public static String getString(ContentResolver resolver, String name) {
2200            synchronized (mNameValueCacheLock) {
2201                if (mNameValueCache == null) {
2202                    mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
2203                }
2204                return mNameValueCache.getString(resolver, name);
2205            }
2206        }
2207
2208        /**
2209         * Store a name/value pair into the database.
2210         * @param resolver to access the database with
2211         * @param name to store
2212         * @param value to associate with the name
2213         * @return true if the value was set, false on database errors
2214         */
2215        public static boolean putString(ContentResolver resolver,
2216                String name, String value) {
2217            return putString(resolver, CONTENT_URI, name, value);
2218        }
2219
2220        /**
2221         * Look up the value for name in the database, convert it to an int using Integer.parseInt
2222         * and return it. If it is null or if a NumberFormatException is caught during the
2223         * conversion then return defValue.
2224         */
2225        public static int getInt(ContentResolver resolver, String name, int defValue) {
2226            String valString = getString(resolver, name);
2227            int value;
2228            try {
2229                value = valString != null ? Integer.parseInt(valString) : defValue;
2230            } catch (NumberFormatException e) {
2231                value = defValue;
2232            }
2233            return value;
2234        }
2235
2236        /**
2237         * Look up the value for name in the database, convert it to a long using Long.parseLong
2238         * and return it. If it is null or if a NumberFormatException is caught during the
2239         * conversion then return defValue.
2240         */
2241        public static long getLong(ContentResolver resolver, String name, long defValue) {
2242            String valString = getString(resolver, name);
2243            long value;
2244            try {
2245                value = valString != null ? Long.parseLong(valString) : defValue;
2246            } catch (NumberFormatException e) {
2247                value = defValue;
2248            }
2249            return value;
2250        }
2251
2252        /**
2253         * Construct the content URI for a particular name/value pair,
2254         * useful for monitoring changes with a ContentObserver.
2255         * @param name to look up in the table
2256         * @return the corresponding content URI, or null if not present
2257         */
2258        public static Uri getUriFor(String name) {
2259            return getUriFor(CONTENT_URI, name);
2260        }
2261
2262        /**
2263         * The content:// style URL for this table
2264         */
2265        public static final Uri CONTENT_URI =
2266                Uri.parse("content://" + AUTHORITY + "/gservices");
2267
2268        /**
2269         * MMS - URL to use for HTTP "x-wap-profile" header
2270         */
2271        public static final String MMS_X_WAP_PROFILE_URL
2272                = "mms_x_wap_profile_url";
2273
2274        /**
2275         * YouTube - the flag to indicate whether to use proxy
2276         */
2277        public static final String YOUTUBE_USE_PROXY
2278                = "youtube_use_proxy";
2279
2280        /**
2281         * MMS - maximum message size in bytes for a MMS message.
2282         */
2283        public static final String MMS_MAXIMUM_MESSAGE_SIZE
2284                = "mms_maximum_message_size";
2285
2286        /**
2287         * Event tags from the kernel event log to upload during checkin.
2288         */
2289        public static final String CHECKIN_EVENTS = "checkin_events";
2290
2291        /**
2292         * Event tags for list of services to upload during checkin.
2293         */
2294        public static final String CHECKIN_DUMPSYS_LIST = "checkin_dumpsys_list";
2295
2296        /**
2297         * The interval (in seconds) between periodic checkin attempts.
2298         */
2299        public static final String CHECKIN_INTERVAL = "checkin_interval";
2300
2301        /**
2302         * Boolean indicating if the market app should force market only checkins on
2303         * install/uninstall. Any non-0 value is considered true.
2304         */
2305        public static final String MARKET_FORCE_CHECKIN = "market_force_checkin";
2306
2307        /**
2308         * How frequently (in seconds) to check the memory status of the
2309         * device.
2310         */
2311        public static final String MEMCHECK_INTERVAL = "memcheck_interval";
2312
2313        /**
2314         * Max frequency (in seconds) to log memory check stats, in realtime
2315         * seconds.  This allows for throttling of logs when the device is
2316         * running for large amounts of time.
2317         */
2318        public static final String MEMCHECK_LOG_REALTIME_INTERVAL =
2319                "memcheck_log_realtime_interval";
2320
2321        /**
2322         * Boolean indicating whether rebooting due to system memory checks
2323         * is enabled.
2324         */
2325        public static final String MEMCHECK_SYSTEM_ENABLED = "memcheck_system_enabled";
2326
2327        /**
2328         * How many bytes the system process must be below to avoid scheduling
2329         * a soft reboot.  This reboot will happen when it is next determined
2330         * to be a good time.
2331         */
2332        public static final String MEMCHECK_SYSTEM_SOFT_THRESHOLD = "memcheck_system_soft";
2333
2334        /**
2335         * How many bytes the system process must be below to avoid scheduling
2336         * a hard reboot.  This reboot will happen immediately.
2337         */
2338        public static final String MEMCHECK_SYSTEM_HARD_THRESHOLD = "memcheck_system_hard";
2339
2340        /**
2341         * How many bytes the phone process must be below to avoid scheduling
2342         * a soft restart.  This restart will happen when it is next determined
2343         * to be a good time.
2344         */
2345        public static final String MEMCHECK_PHONE_SOFT_THRESHOLD = "memcheck_phone_soft";
2346
2347        /**
2348         * How many bytes the phone process must be below to avoid scheduling
2349         * a hard restart.  This restart will happen immediately.
2350         */
2351        public static final String MEMCHECK_PHONE_HARD_THRESHOLD = "memcheck_phone_hard";
2352
2353        /**
2354         * Boolean indicating whether restarting the phone process due to
2355         * memory checks is enabled.
2356         */
2357        public static final String MEMCHECK_PHONE_ENABLED = "memcheck_phone_enabled";
2358
2359        /**
2360         * First time during the day it is okay to kill processes
2361         * or reboot the device due to low memory situations.  This number is
2362         * in seconds since midnight.
2363         */
2364        public static final String MEMCHECK_EXEC_START_TIME = "memcheck_exec_start_time";
2365
2366        /**
2367         * Last time during the day it is okay to kill processes
2368         * or reboot the device due to low memory situations.  This number is
2369         * in seconds since midnight.
2370         */
2371        public static final String MEMCHECK_EXEC_END_TIME = "memcheck_exec_end_time";
2372
2373        /**
2374         * How long the screen must have been off in order to kill processes
2375         * or reboot.  This number is in seconds.  A value of -1 means to
2376         * entirely disregard whether the screen is on.
2377         */
2378        public static final String MEMCHECK_MIN_SCREEN_OFF = "memcheck_min_screen_off";
2379
2380        /**
2381         * How much time there must be until the next alarm in order to kill processes
2382         * or reboot.  This number is in seconds.  Note: this value must be
2383         * smaller than {@link #MEMCHECK_RECHECK_INTERVAL} or else it will
2384         * always see an alarm scheduled within its time.
2385         */
2386        public static final String MEMCHECK_MIN_ALARM = "memcheck_min_alarm";
2387
2388        /**
2389         * How frequently to check whether it is a good time to restart things,
2390         * if the device is in a bad state.  This number is in seconds.  Note:
2391         * this value must be larger than {@link #MEMCHECK_MIN_ALARM} or else
2392         * the alarm to schedule the recheck will always appear within the
2393         * minimum "do not execute now" time.
2394         */
2395        public static final String MEMCHECK_RECHECK_INTERVAL = "memcheck_recheck_interval";
2396
2397        /**
2398         * How frequently (in DAYS) to reboot the device.  If 0, no reboots
2399         * will occur.
2400         */
2401        public static final String REBOOT_INTERVAL = "reboot_interval";
2402
2403        /**
2404         * First time during the day it is okay to force a reboot of the
2405         * device (if REBOOT_INTERVAL is set).  This number is
2406         * in seconds since midnight.
2407         */
2408        public static final String REBOOT_START_TIME = "reboot_start_time";
2409
2410        /**
2411         * The window of time (in seconds) after each REBOOT_INTERVAL in which
2412         * a reboot can be executed.  If 0, a reboot will always be executed at
2413         * exactly the given time.  Otherwise, it will only be executed if
2414         * the device is idle within the window.
2415         */
2416        public static final String REBOOT_WINDOW = "reboot_window";
2417
2418        /**
2419         * The minimum version of the server that is required in order for the device to accept
2420         * the server's recommendations about the initial sync settings to use. When this is unset,
2421         * blank or can't be interpreted as an integer then we will not ask the server for a
2422         * recommendation.
2423         */
2424        public static final String GMAIL_CONFIG_INFO_MIN_SERVER_VERSION =
2425                "gmail_config_info_min_server_version";
2426
2427        /**
2428         * Controls whether Gmail offers a preview button for images.
2429         */
2430        public static final String GMAIL_DISALLOW_IMAGE_PREVIEWS = "gmail_disallow_image_previews";
2431
2432        /**
2433         * The maximal size in bytes allowed for attachments when composing messages in Gmail
2434         */
2435        public static final String GMAIL_MAX_ATTACHMENT_SIZE = "gmail_max_attachment_size_bytes";
2436
2437        /**
2438         * The timeout in milliseconds that Gmail uses when opening a connection and reading
2439         * from it. A missing value or a value of -1 instructs Gmail to use the defaults provided
2440         * by GoogleHttpClient.
2441         */
2442        public static final String GMAIL_TIMEOUT_MS = "gmail_timeout_ms";
2443
2444        /**
2445         * Controls whether Gmail will request an expedited sync when a message is sent. Value must
2446         * be an integer where non-zero means true. Defaults to 1.
2447         */
2448        public static final String GMAIL_SEND_IMMEDIATELY = "gmail_send_immediately";
2449
2450        /**
2451         * Controls whether gmail buffers server responses.  Possible values are "memory", for a
2452         * memory-based buffer, or "file", for a temp-file-based buffer.  All other values
2453         * (including not set) disable buffering.
2454         */
2455        public static final String GMAIL_BUFFER_SERVER_RESPONSE = "gmail_buffer_server_response";
2456
2457        /**
2458         * Controls whether Gmail will discard uphill operations that repeatedly fail. Value must be
2459         * an integer where non-zero means true. Defaults to 1.
2460         */
2461        public static final String GMAIL_DISCARD_ERROR_UPHILL_OP = "gmail_discard_error_uphill_op";
2462
2463        /**
2464         * Hostname of the GTalk server.
2465         */
2466        public static final String GTALK_SERVICE_HOSTNAME = "gtalk_hostname";
2467
2468        /**
2469         * Secure port of the GTalk server.
2470         */
2471        public static final String GTALK_SERVICE_SECURE_PORT = "gtalk_secure_port";
2472
2473        /**
2474         * The server configurable RMQ acking interval
2475         */
2476        public static final String GTALK_SERVICE_RMQ_ACK_INTERVAL = "gtalk_rmq_ack_interval";
2477
2478        /**
2479         * The minimum reconnect delay for short network outages or when the network is suspended
2480         * due to phone use.
2481         */
2482        public static final String GTALK_SERVICE_MIN_RECONNECT_DELAY_SHORT =
2483                "gtalk_min_reconnect_delay_short";
2484
2485        /**
2486         * The reconnect variant range for short network outages or when the network is suspended
2487         * due to phone use. A random number between 0 and this constant is computed and
2488         * added to {@link #GTALK_SERVICE_MIN_RECONNECT_DELAY_SHORT} to form the initial reconnect
2489         * delay.
2490         */
2491        public static final String GTALK_SERVICE_RECONNECT_VARIANT_SHORT =
2492                "gtalk_reconnect_variant_short";
2493
2494        /**
2495         * The minimum reconnect delay for long network outages
2496         */
2497        public static final String GTALK_SERVICE_MIN_RECONNECT_DELAY_LONG =
2498                "gtalk_min_reconnect_delay_long";
2499
2500        /**
2501         * The reconnect variant range for long network outages.  A random number between 0 and this
2502         * constant is computed and added to {@link #GTALK_SERVICE_MIN_RECONNECT_DELAY_LONG} to
2503         * form the initial reconnect delay.
2504         */
2505        public static final String GTALK_SERVICE_RECONNECT_VARIANT_LONG =
2506                "gtalk_reconnect_variant_long";
2507
2508        /**
2509         * The maximum reconnect delay time, in milliseconds.
2510         */
2511        public static final String GTALK_SERVICE_MAX_RECONNECT_DELAY =
2512                "gtalk_max_reconnect_delay";
2513
2514        /**
2515         * The network downtime that is considered "short" for the above calculations,
2516         * in milliseconds.
2517         */
2518        public static final String GTALK_SERVICE_SHORT_NETWORK_DOWNTIME =
2519                "gtalk_short_network_downtime";
2520
2521        /**
2522         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2523         * will reset the heartbeat timer. The away heartbeat should be used when the user is
2524         * logged into the GTalk app, but not actively using it.
2525         */
2526        public static final String GTALK_SERVICE_AWAY_HEARTBEAT_INTERVAL_MS =
2527                "gtalk_heartbeat_ping_interval_ms";  // keep the string backward compatible
2528
2529        /**
2530         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2531         * will reset the heartbeat timer. The active heartbeat should be used when the user is
2532         * actively using the GTalk app.
2533         */
2534        public static final String GTALK_SERVICE_ACTIVE_HEARTBEAT_INTERVAL_MS =
2535                "gtalk_active_heartbeat_ping_interval_ms";
2536
2537        /**
2538         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2539         * will reset the heartbeat timer. The sync heartbeat should be used when the user isn't
2540         * logged into the GTalk app, but auto-sync is enabled.
2541         */
2542        public static final String GTALK_SERVICE_SYNC_HEARTBEAT_INTERVAL_MS =
2543                "gtalk_sync_heartbeat_ping_interval_ms";
2544
2545        /**
2546         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2547         * will reset the heartbeat timer. The no sync heartbeat should be used when the user isn't
2548         * logged into the GTalk app, and auto-sync is not enabled.
2549         */
2550        public static final String GTALK_SERVICE_NOSYNC_HEARTBEAT_INTERVAL_MS =
2551                "gtalk_nosync_heartbeat_ping_interval_ms";
2552
2553        /**
2554         * How long we wait to receive a heartbeat ping acknowledgement (or another packet)
2555         * from the GTalk server, before deeming the connection dead.
2556         */
2557        public static final String GTALK_SERVICE_HEARTBEAT_ACK_TIMEOUT_MS =
2558                "gtalk_heartbeat_ack_timeout_ms";
2559
2560        /**
2561         * How long after screen is turned off before we consider the user to be idle.
2562         */
2563        public static final String GTALK_SERVICE_IDLE_TIMEOUT_MS =
2564                "gtalk_idle_timeout_ms";
2565
2566        /**
2567         * By default, GTalkService will always connect to the server regardless of the auto-sync
2568         * setting. However, if this parameter is true, then GTalkService will only connect
2569         * if auto-sync is enabled. Using the GTalk app will trigger the connection too.
2570         */
2571        public static final String GTALK_SERVICE_CONNECT_ON_AUTO_SYNC =
2572                "gtalk_connect_on_auto_sync";
2573
2574        /**
2575         * GTalkService holds a wakelock while broadcasting the intent for data message received.
2576         * It then automatically release the wakelock after a timeout. This setting controls what
2577         * the timeout should be.
2578         */
2579        public static final String GTALK_DATA_MESSAGE_WAKELOCK_MS =
2580                "gtalk_data_message_wakelock_ms";
2581
2582        /**
2583         * The socket read timeout used to control how long ssl handshake wait for reads before
2584         * timing out. This is needed so the ssl handshake doesn't hang for a long time in some
2585         * circumstances.
2586         */
2587        public static final String GTALK_SSL_HANDSHAKE_TIMEOUT_MS =
2588                "gtalk_ssl_handshake_timeout_ms";
2589
2590        /**
2591         * Compress the gtalk stream.
2592         */
2593        public static final String GTALK_COMPRESS = "gtalk_compress";
2594
2595        /**
2596         * Enable use of ssl session caching.
2597         * 'db' - save each session in a (per process) database
2598         * 'file' - save each session in a (per process) file
2599         * not set or any other value - normal java in-memory caching
2600         */
2601        public static final String SSL_SESSION_CACHE = "ssl_session_cache";
2602
2603        /**
2604         * How many bytes long a message has to be, in order to be gzipped.
2605         */
2606        public static final String SYNC_MIN_GZIP_BYTES =
2607                "sync_min_gzip_bytes";
2608
2609        /**
2610         * The hash value of the current provisioning settings
2611         */
2612        public static final String PROVISIONING_DIGEST = "digest";
2613
2614        /**
2615         * Provisioning keys to block from server update
2616         */
2617        public static final String PROVISIONING_OVERRIDE = "override";
2618
2619        /**
2620         * "Generic" service name for  authentication requests.
2621         */
2622        public static final String GOOGLE_LOGIN_GENERIC_AUTH_SERVICE
2623                = "google_login_generic_auth_service";
2624
2625        /**
2626         * Frequency in milliseconds at which we should sync the locally installed Vending Machine
2627         * content with the server.
2628         */
2629        public static final String VENDING_SYNC_FREQUENCY_MS = "vending_sync_frequency_ms";
2630
2631        /**
2632         * Support URL that is opened in a browser when user clicks on 'Help and Info' in Vending
2633         * Machine.
2634         */
2635        public static final String VENDING_SUPPORT_URL = "vending_support_url";
2636
2637        /**
2638         * Indicates if Vending Machine requires a SIM to be in the phone to allow a purchase.
2639         *
2640         * true = SIM is required
2641         * false = SIM is not required
2642         */
2643        public static final String VENDING_REQUIRE_SIM_FOR_PURCHASE =
2644                "vending_require_sim_for_purchase";
2645
2646        /**
2647         * The current version id of the Vending Machine terms of service.
2648         */
2649        public static final String VENDING_TOS_VERSION = "vending_tos_version";
2650
2651        /**
2652         * URL that points to the terms of service for Vending Machine.
2653         */
2654        public static final String VENDING_TOS_URL = "vending_tos_url";
2655
2656        /**
2657         * Whether to use sierraqa instead of sierra tokens for the purchase flow in
2658         * Vending Machine.
2659         *
2660         * true = use sierraqa
2661         * false = use sierra (default)
2662         */
2663        public static final String VENDING_USE_CHECKOUT_QA_SERVICE =
2664                "vending_use_checkout_qa_service";
2665
2666        /**
2667         * Default value to use for all/free/priced filter in Market.
2668         * Valid values: ALL, FREE, PAID (case insensitive)
2669         */
2670        public static final String VENDING_DEFAULT_FILTER = "vending_default_filter";
2671        /**
2672         * Ranking type value to use for the first category tab (currently popular)
2673         */
2674        public static final String VENDING_TAB_1_RANKING_TYPE = "vending_tab_1_ranking_type";
2675
2676        /**
2677         * Title string to use for first category tab.
2678         */
2679        public static final String VENDING_TAB_1_TITLE = "vending_tab_1_title";
2680
2681        /**
2682         * Ranking type value to use for the second category tab (currently newest)
2683         */
2684        public static final String VENDING_TAB_2_RANKING_TYPE = "vending_tab_2_ranking_type";
2685
2686        /**
2687         * Title string to use for second category tab.
2688         */
2689        public static final String VENDING_TAB_2_TITLE = "vending_tab_2_title";
2690
2691        /**
2692         * URL that points to the legal terms of service to display in Settings.
2693         * <p>
2694         * This should be a https URL. For a pretty user-friendly URL, use
2695         * {@link #SETTINGS_TOS_PRETTY_URL}.
2696         */
2697        public static final String SETTINGS_TOS_URL = "settings_tos_url";
2698
2699        /**
2700         * URL that points to the legal terms of service to display in Settings.
2701         * <p>
2702         * This should be a pretty http URL. For the URL the device will access
2703         * via Settings, use {@link #SETTINGS_TOS_URL}.
2704         */
2705        public static final String SETTINGS_TOS_PRETTY_URL = "settings_tos_pretty_url";
2706
2707        /**
2708         * URL that points to the contributors to display in Settings.
2709         * <p>
2710         * This should be a https URL. For a pretty user-friendly URL, use
2711         * {@link #SETTINGS_CONTRIBUTORS_PRETTY_URL}.
2712         */
2713        public static final String SETTINGS_CONTRIBUTORS_URL = "settings_contributors_url";
2714
2715        /**
2716         * URL that points to the contributors to display in Settings.
2717         * <p>
2718         * This should be a pretty http URL. For the URL the device will access
2719         * via Settings, use {@link #SETTINGS_CONTRIBUTORS_URL}.
2720         */
2721        public static final String SETTINGS_CONTRIBUTORS_PRETTY_URL =
2722                "settings_contributors_pretty_url";
2723
2724        /**
2725         * URL that points to the Terms Of Service for the device.
2726         * <p>
2727         * This should be a pretty http URL.
2728         */
2729        public static final String SETUP_GOOGLE_TOS_URL = "setup_google_tos_url";
2730
2731        /**
2732         * URL that points to the Android privacy policy for the device.
2733         * <p>
2734         * This should be a pretty http URL.
2735         */
2736        public static final String SETUP_ANDROID_PRIVACY_URL = "setup_android_privacy_url";
2737
2738        /**
2739         * URL that points to the Google privacy policy for the device.
2740         * <p>
2741         * This should be a pretty http URL.
2742         */
2743        public static final String SETUP_GOOGLE_PRIVACY_URL = "setup_google_privacy_url";
2744
2745        /**
2746         * Request an MSISDN token for various Google services.
2747         */
2748        public static final String USE_MSISDN_TOKEN = "use_msisdn_token";
2749
2750        /**
2751         * RSA public key used to encrypt passwords stored in the database.
2752         */
2753        public static final String GLS_PUBLIC_KEY = "google_login_public_key";
2754
2755        /**
2756         * Only check parental control status if this is set to "true".
2757         */
2758        public static final String PARENTAL_CONTROL_CHECK_ENABLED =
2759                "parental_control_check_enabled";
2760
2761        /**
2762         * The list of applications we need to block if parental control is
2763         * enabled.
2764         */
2765        public static final String PARENTAL_CONTROL_APPS_LIST =
2766                "parental_control_apps_list";
2767
2768        /**
2769         * Duration in which parental control status is valid.
2770         */
2771        public static final String PARENTAL_CONTROL_TIMEOUT_IN_MS =
2772                "parental_control_timeout_in_ms";
2773
2774        /**
2775         * When parental control is off, we expect to get this string from the
2776         * litmus url.
2777         */
2778        public static final String PARENTAL_CONTROL_EXPECTED_RESPONSE =
2779                "parental_control_expected_response";
2780
2781        /**
2782         * When the litmus url returns a 302, declare parental control to be on
2783         * only if the redirect url matches this regular expression.
2784         */
2785        public static final String PARENTAL_CONTROL_REDIRECT_REGEX =
2786                "parental_control_redirect_regex";
2787
2788        /**
2789         * Threshold for the amount of change in disk free space required to report the amount of
2790         * free space. Used to prevent spamming the logs when the disk free space isn't changing
2791         * frequently.
2792         */
2793        public static final String DISK_FREE_CHANGE_REPORTING_THRESHOLD =
2794                "disk_free_change_reporting_threshold";
2795
2796        /**
2797         * Prefix for new Google services published by the checkin
2798         * server.
2799         */
2800        public static final String GOOGLE_SERVICES_PREFIX
2801                = "google_services:";
2802
2803        /**
2804         * The maximum reconnect delay for short network outages or when the network is suspended
2805         * due to phone use.
2806         */
2807        public static final String SYNC_MAX_RETRY_DELAY_IN_SECONDS =
2808                "sync_max_retry_delay_in_seconds";
2809
2810        /**
2811         * Minimum percentage of free storage on the device that is used to determine if
2812         * the device is running low on storage.
2813         * Say this value is set to 10, the device is considered running low on storage
2814         * if 90% or more of the device storage is filled up.
2815         */
2816        public static final String SYS_STORAGE_THRESHOLD_PERCENTAGE =
2817                "sys_storage_threshold_percentage";
2818
2819        /**
2820         * The interval in minutes after which the amount of free storage left on the
2821         * device is logged to the event log
2822         */
2823        public static final String SYS_FREE_STORAGE_LOG_INTERVAL =
2824                "sys_free_storage_log_interval";
2825
2826        /**
2827         * The interval in milliseconds at which to check the number of SMS sent
2828         * out without asking for use permit, to limit the un-authorized SMS
2829         * usage.
2830         */
2831        public static final String SMS_OUTGOING_CEHCK_INTERVAL_MS =
2832                "sms_outgoing_check_interval_ms";
2833
2834        /**
2835         * The number of outgoing SMS sent without asking for user permit
2836         * (of {@link #SMS_OUTGOING_CEHCK_INTERVAL_MS}
2837         */
2838        public static final String SMS_OUTGOING_CEHCK_MAX_COUNT =
2839                "sms_outgoing_check_max_count";
2840
2841        /**
2842         * The interval in milliseconds at which to check packet counts on the
2843         * mobile data interface when screen is on, to detect possible data
2844         * connection problems.
2845         */
2846        public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
2847                "pdp_watchdog_poll_interval_ms";
2848
2849        /**
2850         * The interval in milliseconds at which to check packet counts on the
2851         * mobile data interface when screen is off, to detect possible data
2852         * connection problems.
2853         */
2854        public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
2855                "pdp_watchdog_long_poll_interval_ms";
2856
2857        /**
2858         * The interval in milliseconds at which to check packet counts on the
2859         * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
2860         * outgoing packets has been reached without incoming packets.
2861         */
2862        public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
2863                "pdp_watchdog_error_poll_interval_ms";
2864
2865        /**
2866         * The number of outgoing packets sent without seeing an incoming packet
2867         * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
2868         * device is logged to the event log
2869         */
2870        public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
2871                "pdp_watchdog_trigger_packet_count";
2872
2873        /**
2874         * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
2875         * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
2876         * attempting data connection recovery.
2877         */
2878        public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
2879                "pdp_watchdog_error_poll_count";
2880
2881        /**
2882         * The number of failed PDP reset attempts before moving to something more
2883         * drastic: re-registering to the network.
2884         */
2885        public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
2886                "pdp_watchdog_max_pdp_reset_fail_count";
2887
2888        /**
2889         * Address to ping as a last sanity check before attempting any recovery.
2890         * Unset or set to "0.0.0.0" to skip this check.
2891         */
2892        public static final String PDP_WATCHDOG_PING_ADDRESS = "pdp_watchdog_ping_address";
2893
2894        /**
2895         * The "-w deadline" parameter for the ping, ie, the max time in
2896         * seconds to spend pinging.
2897         */
2898        public static final String PDP_WATCHDOG_PING_DEADLINE = "pdp_watchdog_ping_deadline";
2899
2900        /**
2901         * The interval in milliseconds at which to check gprs registration
2902         * after the first registration mismatch of gprs and voice service,
2903         * to detect possible data network registration problems.
2904         *
2905         */
2906        public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
2907                "gprs_register_check_period_ms";
2908
2909        /**
2910         * The interval in milliseconds after which Wi-Fi is considered idle.
2911         * When idle, it is possible for the device to be switched from Wi-Fi to
2912         * the mobile data network.
2913         */
2914        public static final String WIFI_IDLE_MS = "wifi_idle_ms";
2915
2916        /**
2917         * Screen timeout in milliseconds corresponding to the
2918         * PowerManager's POKE_LOCK_SHORT_TIMEOUT flag (i.e. the fastest
2919         * possible screen timeout behavior.)
2920         */
2921        public static final String SHORT_KEYLIGHT_DELAY_MS =
2922                "short_keylight_delay_ms";
2923
2924        /**
2925         * URL that points to the voice search servers. To be factored out of this class.
2926         */
2927        public static final String VOICE_SEARCH_URL = "voice_search_url";
2928
2929        /**
2930         * Speech encoding used with voice search on 3G networks. To be factored out of this class.
2931         */
2932        public static final String VOICE_SEARCH_ENCODING_THREE_G = "voice_search_encoding_three_g";
2933
2934        /**
2935         * Speech encoding used with voice search on WIFI networks. To be factored out of this class.
2936         */
2937        public static final String VOICE_SEARCH_ENCODING_WIFI = "voice_search_encoding_wifi";
2938
2939        /**
2940         * Whether to use automatic gain control in voice search (0 = disable, 1 = enable).
2941         * To be factored out of this class.
2942         */
2943        public static final String VOICE_SEARCH_ENABLE_AGC = "voice_search_enable_agc";
2944
2945        /**
2946         * Whether to use noise suppression in voice search (0 = disable, 1 = enable).
2947         * To be factored out of this class.
2948         */
2949        public static final String VOICE_SEARCH_ENABLE_NS = "voice_search_enable_ns";
2950
2951        /**
2952         * Whether to use the IIR filter in voice search (0 = disable, 1 = enable).
2953         * To be factored out of this class.
2954         */
2955        public static final String VOICE_SEARCH_ENABLE_IIR = "voice_search_enable_iir";
2956
2957        /**
2958         * List of test suites (local disk filename) for the automatic instrumentation test runner.
2959         * The file format is similar to automated_suites.xml, see AutoTesterService.
2960         * If this setting is missing or empty, the automatic test runner will not start.
2961         */
2962        public static final String AUTOTEST_SUITES_FILE = "autotest_suites_file";
2963
2964        /**
2965         * Interval between synchronous checkins forced by the automatic test runner.
2966         * If you set this to a value smaller than CHECKIN_INTERVAL, then the test runner's
2967         * frequent checkins will prevent asynchronous background checkins from interfering
2968         * with any performance measurements.
2969         */
2970        public static final String AUTOTEST_CHECKIN_SECONDS = "autotest_checkin_seconds";
2971
2972        /**
2973         * Interval between reboots forced by the automatic test runner.
2974         */
2975        public static final String AUTOTEST_REBOOT_SECONDS = "autotest_reboot_seconds";
2976
2977
2978        /**
2979         * Threshold values for the duration and level of a discharge cycle, under
2980         * which we log discharge cycle info.
2981         */
2982        public static final String BATTERY_DISCHARGE_DURATION_THRESHOLD =
2983                "battery_discharge_duration_threshold";
2984        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
2985
2986        /**
2987         * An email address that anr bugreports should be sent to.
2988         */
2989        public static final String ANR_BUGREPORT_RECIPIENT = "anr_bugreport_recipient";
2990
2991        /**
2992         * @deprecated
2993         * @hide
2994         */
2995        @Deprecated  // Obviated by NameValueCache: just fetch the value directly.
2996        public static class QueryMap extends ContentQueryMap {
2997
2998            public QueryMap(ContentResolver contentResolver, Cursor cursor, boolean keepUpdated,
2999                    Handler handlerForUpdateNotifications) {
3000                super(cursor, NAME, keepUpdated, handlerForUpdateNotifications);
3001            }
3002
3003            public QueryMap(ContentResolver contentResolver, boolean keepUpdated,
3004                    Handler handlerForUpdateNotifications) {
3005                this(contentResolver,
3006                        contentResolver.query(CONTENT_URI, null, null, null, null),
3007                        keepUpdated, handlerForUpdateNotifications);
3008            }
3009
3010            public String getString(String name) {
3011                ContentValues cv = getValues(name);
3012                if (cv == null) return null;
3013                return cv.getAsString(VALUE);
3014            }
3015        }
3016
3017    }
3018
3019    /**
3020     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
3021     * Intent URL, allowing it to be either a web page or a particular
3022     * application activity.
3023     *
3024     * @hide
3025     */
3026    public static final class Bookmarks implements BaseColumns
3027    {
3028        private static final String TAG = "Bookmarks";
3029
3030        /**
3031         * The content:// style URL for this table
3032         */
3033        public static final Uri CONTENT_URI =
3034            Uri.parse("content://" + AUTHORITY + "/bookmarks");
3035
3036        /**
3037         * The row ID.
3038         * <p>Type: INTEGER</p>
3039         */
3040        public static final String ID = "_id";
3041
3042        /**
3043         * Descriptive name of the bookmark that can be displayed to the user.
3044         * If this is empty, the title should be resolved at display time (use
3045         * {@link #getTitle(Context, Cursor)} any time you want to display the
3046         * title of a bookmark.)
3047         * <P>
3048         * Type: TEXT
3049         * </P>
3050         */
3051        public static final String TITLE = "title";
3052
3053        /**
3054         * Arbitrary string (displayed to the user) that allows bookmarks to be
3055         * organized into categories.  There are some special names for
3056         * standard folders, which all start with '@'.  The label displayed for
3057         * the folder changes with the locale (via {@link #getLabelForFolder}) but
3058         * the folder name does not change so you can consistently query for
3059         * the folder regardless of the current locale.
3060         *
3061         * <P>Type: TEXT</P>
3062         *
3063         */
3064        public static final String FOLDER = "folder";
3065
3066        /**
3067         * The Intent URL of the bookmark, describing what it points to.  This
3068         * value is given to {@link android.content.Intent#getIntent} to create
3069         * an Intent that can be launched.
3070         * <P>Type: TEXT</P>
3071         */
3072        public static final String INTENT = "intent";
3073
3074        /**
3075         * Optional shortcut character associated with this bookmark.
3076         * <P>Type: INTEGER</P>
3077         */
3078        public static final String SHORTCUT = "shortcut";
3079
3080        /**
3081         * The order in which the bookmark should be displayed
3082         * <P>Type: INTEGER</P>
3083         */
3084        public static final String ORDERING = "ordering";
3085
3086        private static final String[] sIntentProjection = { INTENT };
3087        private static final String[] sShortcutProjection = { ID, SHORTCUT };
3088        private static final String sShortcutSelection = SHORTCUT + "=?";
3089
3090        /**
3091         * Convenience function to retrieve the bookmarked Intent for a
3092         * particular shortcut key.
3093         *
3094         * @param cr The ContentResolver to query.
3095         * @param shortcut The shortcut key.
3096         *
3097         * @return Intent The bookmarked URL, or null if there is no bookmark
3098         *         matching the given shortcut.
3099         */
3100        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
3101        {
3102            Intent intent = null;
3103
3104            Cursor c = cr.query(CONTENT_URI,
3105                    sIntentProjection, sShortcutSelection,
3106                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
3107            // Keep trying until we find a valid shortcut
3108            try {
3109                while (intent == null && c.moveToNext()) {
3110                    try {
3111                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
3112                        intent = Intent.getIntent(intentURI);
3113                    } catch (java.net.URISyntaxException e) {
3114                        // The stored URL is bad...  ignore it.
3115                    } catch (IllegalArgumentException e) {
3116                        // Column not found
3117                        Log.e(TAG, "Intent column not found", e);
3118                    }
3119                }
3120            } finally {
3121                if (c != null) c.close();
3122            }
3123
3124            return intent;
3125        }
3126
3127        /**
3128         * Add a new bookmark to the system.
3129         *
3130         * @param cr The ContentResolver to query.
3131         * @param intent The desired target of the bookmark.
3132         * @param title Bookmark title that is shown to the user; null if none
3133         *            or it should be resolved to the intent's title.
3134         * @param folder Folder in which to place the bookmark; null if none.
3135         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
3136         *            this is non-zero and there is an existing bookmark entry
3137         *            with this same shortcut, then that existing shortcut is
3138         *            cleared (the bookmark is not removed).
3139         * @return The unique content URL for the new bookmark entry.
3140         */
3141        public static Uri add(ContentResolver cr,
3142                                           Intent intent,
3143                                           String title,
3144                                           String folder,
3145                                           char shortcut,
3146                                           int ordering)
3147        {
3148            // If a shortcut is supplied, and it is already defined for
3149            // another bookmark, then remove the old definition.
3150            if (shortcut != 0) {
3151                Cursor c = cr.query(CONTENT_URI,
3152                        sShortcutProjection, sShortcutSelection,
3153                        new String[] { String.valueOf((int) shortcut) }, null);
3154                try {
3155                    if (c.moveToFirst()) {
3156                        while (c.getCount() > 0) {
3157                            if (!c.deleteRow()) {
3158                                Log.w(TAG, "Could not delete existing shortcut row");
3159                            }
3160                        }
3161                    }
3162                } finally {
3163                    if (c != null) c.close();
3164                }
3165            }
3166
3167            ContentValues values = new ContentValues();
3168            if (title != null) values.put(TITLE, title);
3169            if (folder != null) values.put(FOLDER, folder);
3170            values.put(INTENT, intent.toURI());
3171            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
3172            values.put(ORDERING, ordering);
3173            return cr.insert(CONTENT_URI, values);
3174        }
3175
3176        /**
3177         * Return the folder name as it should be displayed to the user.  This
3178         * takes care of localizing special folders.
3179         *
3180         * @param r Resources object for current locale; only need access to
3181         *          system resources.
3182         * @param folder The value found in the {@link #FOLDER} column.
3183         *
3184         * @return CharSequence The label for this folder that should be shown
3185         *         to the user.
3186         */
3187        public static CharSequence getLabelForFolder(Resources r, String folder) {
3188            return folder;
3189        }
3190
3191        /**
3192         * Return the title as it should be displayed to the user. This takes
3193         * care of localizing bookmarks that point to activities.
3194         *
3195         * @param context A context.
3196         * @param cursor A cursor pointing to the row whose title should be
3197         *        returned. The cursor must contain at least the {@link #TITLE}
3198         *        and {@link #INTENT} columns.
3199         * @return A title that is localized and can be displayed to the user,
3200         *         or the empty string if one could not be found.
3201         */
3202        public static CharSequence getTitle(Context context, Cursor cursor) {
3203            int titleColumn = cursor.getColumnIndex(TITLE);
3204            int intentColumn = cursor.getColumnIndex(INTENT);
3205            if (titleColumn == -1 || intentColumn == -1) {
3206                throw new IllegalArgumentException(
3207                        "The cursor must contain the TITLE and INTENT columns.");
3208            }
3209
3210            String title = cursor.getString(titleColumn);
3211            if (!TextUtils.isEmpty(title)) {
3212                return title;
3213            }
3214
3215            String intentUri = cursor.getString(intentColumn);
3216            if (TextUtils.isEmpty(intentUri)) {
3217                return "";
3218            }
3219
3220            Intent intent;
3221            try {
3222                intent = Intent.getIntent(intentUri);
3223            } catch (URISyntaxException e) {
3224                return "";
3225            }
3226
3227            PackageManager packageManager = context.getPackageManager();
3228            ResolveInfo info = packageManager.resolveActivity(intent, 0);
3229            return info != null ? info.loadLabel(packageManager) : "";
3230        }
3231    }
3232
3233    /**
3234     * Returns the GTalk JID resource associated with this device.
3235     *
3236     * @return  String  the JID resource of the device. It uses the device IMEI in the computation
3237     * of the JID resource. If IMEI is not ready (i.e. telephony module not ready), we'll return
3238     * an empty string.
3239     * @hide
3240     */
3241    // TODO: we shouldn't not have a permenant Jid resource, as that's an easy target for
3242    // spams. We should change it once a while, like when we resubscribe to the subscription feeds
3243    // server.
3244    // (also, should this live in GTalkService?)
3245    public static synchronized String getJidResource() {
3246        if (sJidResource != null) {
3247            return sJidResource;
3248        }
3249
3250        MessageDigest digest;
3251        try {
3252            digest = MessageDigest.getInstance("SHA-1");
3253        } catch (NoSuchAlgorithmException e) {
3254            throw new RuntimeException("this should never happen");
3255        }
3256
3257        String deviceId = TelephonyManager.getDefault().getDeviceId();
3258        if (TextUtils.isEmpty(deviceId)) {
3259            return "";
3260        }
3261
3262        byte[] hashedDeviceId = digest.digest(deviceId.getBytes());
3263        String id = new String(Base64.encodeBase64(hashedDeviceId), 0, 12);
3264        id = id.replaceAll("/", "_");
3265        sJidResource = JID_RESOURCE_PREFIX + id;
3266        return sJidResource;
3267    }
3268
3269    /**
3270     * Returns the device ID that we should use when connecting to the mobile gtalk server.
3271     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
3272     * from the GoogleLoginService.
3273     *
3274     * @param androidId The Android ID for this device.
3275     * @return The device ID that should be used when connecting to the mobile gtalk server.
3276     * @hide
3277     */
3278    public static String getGTalkDeviceId(long androidId) {
3279        return "android-" + Long.toHexString(androidId);
3280    }
3281}
3282
3283