Settings.java revision 48603e7fed957f318b12aa24089e0b13c3e78529
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         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
1178         */
1179        public static final String TEXT_AUTO_REPLACE = "auto_replace";
1180
1181        /**
1182         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
1183         */
1184        public static final String TEXT_AUTO_CAPS = "auto_caps";
1185
1186        /**
1187         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
1188         * feature converts two spaces to a "." and space.
1189         */
1190        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
1191
1192        /**
1193         * Setting to showing password characters in text editors. 1 = On, 0 = Off
1194         */
1195        public static final String TEXT_SHOW_PASSWORD = "show_password";
1196
1197        public static final String SHOW_GTALK_SERVICE_STATUS =
1198                "SHOW_GTALK_SERVICE_STATUS";
1199
1200        /**
1201         * Name of activity to use for wallpaper on the home screen.
1202         */
1203        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
1204
1205        /**
1206         * Value to specify if the user prefers the date, time and time zone
1207         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
1208         */
1209        public static final String AUTO_TIME = "auto_time";
1210
1211        /**
1212         * Display times as 12 or 24 hours
1213         *   12
1214         *   24
1215         */
1216        public static final String TIME_12_24 = "time_12_24";
1217
1218        /**
1219         * Date format string
1220         *   mm/dd/yyyy
1221         *   dd/mm/yyyy
1222         *   yyyy/mm/dd
1223         */
1224        public static final String DATE_FORMAT = "date_format";
1225
1226        /**
1227         * Whether the setup wizard has been run before (on first boot), or if
1228         * it still needs to be run.
1229         *
1230         * nonzero = it has been run in the past
1231         * 0 = it has not been run in the past
1232         */
1233        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
1234
1235        /**
1236         * Scaling factor for normal window animations. Setting to 0 will disable window
1237         * animations.
1238         */
1239        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
1240
1241        /**
1242         * Scaling factor for activity transition animations. Setting to 0 will disable window
1243         * animations.
1244         */
1245        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
1246
1247        /**
1248         * Scaling factor for normal window animations. Setting to 0 will disable window
1249         * animations.
1250         * @hide
1251         */
1252        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
1253
1254        /**
1255         * Control whether the accelerometer will be used to change screen
1256         * orientation.  If 0, it will not be used unless explicitly requested
1257         * by the application; if 1, it will be used by default unless explicitly
1258         * disabled by the application.
1259         */
1260        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
1261
1262        /**
1263         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
1264         * boolean (1 or 0).
1265         */
1266        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
1267
1268        /**
1269         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
1270         * boolean (1 or 0).
1271         */
1272        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
1273
1274        /**
1275         * Whether the haptic feedback (long presses, ...) are enabled. The value is
1276         * boolean (1 or 0).
1277         */
1278        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
1279
1280        /**
1281         * Whether live web suggestions while the user types into search dialogs are
1282         * enabled. Browsers and other search UIs should respect this, as it allows
1283         * a user to avoid sending partial queries to a search engine, if it poses
1284         * any privacy concern. The value is boolean (1 or 0).
1285         */
1286        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
1287
1288        // Settings moved to Settings.Secure
1289
1290        /**
1291         * @deprecated Use {@link android.provider.Settings.Secure#ADB_ENABLED}
1292         * instead
1293         */
1294        @Deprecated
1295        public static final String ADB_ENABLED = Secure.ADB_ENABLED;
1296
1297        /**
1298         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
1299         */
1300        @Deprecated
1301        public static final String ANDROID_ID = Secure.ANDROID_ID;
1302
1303        /**
1304         * @deprecated Use {@link android.provider.Settings.Secure#BLUETOOTH_ON} instead
1305         */
1306        @Deprecated
1307        public static final String BLUETOOTH_ON = Secure.BLUETOOTH_ON;
1308
1309        /**
1310         * @deprecated Use {@link android.provider.Settings.Secure#DATA_ROAMING} instead
1311         */
1312        @Deprecated
1313        public static final String DATA_ROAMING = Secure.DATA_ROAMING;
1314
1315        /**
1316         * @deprecated Use {@link android.provider.Settings.Secure#DEVICE_PROVISIONED} instead
1317         */
1318        @Deprecated
1319        public static final String DEVICE_PROVISIONED = Secure.DEVICE_PROVISIONED;
1320
1321        /**
1322         * @deprecated Use {@link android.provider.Settings.Secure#HTTP_PROXY} instead
1323         */
1324        @Deprecated
1325        public static final String HTTP_PROXY = Secure.HTTP_PROXY;
1326
1327        /**
1328         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
1329         */
1330        @Deprecated
1331        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
1332
1333        /**
1334         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
1335         * instead
1336         */
1337        @Deprecated
1338        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
1339
1340        /**
1341         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
1342         */
1343        @Deprecated
1344        public static final String LOGGING_ID = Secure.LOGGING_ID;
1345
1346        /**
1347         * @deprecated Use {@link android.provider.Settings.Secure#NETWORK_PREFERENCE} instead
1348         */
1349        @Deprecated
1350        public static final String NETWORK_PREFERENCE = Secure.NETWORK_PREFERENCE;
1351
1352        /**
1353         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
1354         * instead
1355         */
1356        @Deprecated
1357        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
1358
1359        /**
1360         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
1361         * instead
1362         */
1363        @Deprecated
1364        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
1365
1366        /**
1367         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
1368         * instead
1369         */
1370        @Deprecated
1371        public static final String PARENTAL_CONTROL_REDIRECT_URL =
1372            Secure.PARENTAL_CONTROL_REDIRECT_URL;
1373
1374        /**
1375         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
1376         */
1377        @Deprecated
1378        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
1379
1380        /**
1381         * @deprecated Use {@link android.provider.Settings.Secure#USB_MASS_STORAGE_ENABLED} instead
1382         */
1383        @Deprecated
1384        public static final String USB_MASS_STORAGE_ENABLED = Secure.USB_MASS_STORAGE_ENABLED;
1385
1386        /**
1387         * @deprecated Use {@link android.provider.Settings.Secure#USE_GOOGLE_MAIL} instead
1388         */
1389        @Deprecated
1390        public static final String USE_GOOGLE_MAIL = Secure.USE_GOOGLE_MAIL;
1391
1392//       /**
1393//         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT}
1394//         * instead
1395//         */
1396        @Deprecated
1397        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Secure.WIFI_MAX_DHCP_RETRY_COUNT;
1398
1399//        /**
1400//         * @deprecated Use
1401//         * {@link android.provider.Settings.Secure#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS}
1402//         * instead
1403//         */
1404        @Deprecated
1405        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
1406                Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
1407
1408        /**
1409         * @deprecated Use
1410         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
1411         */
1412        @Deprecated
1413        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1414            Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
1415
1416        /**
1417         * @deprecated Use
1418         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
1419         */
1420        @Deprecated
1421        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1422            Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
1423
1424        /**
1425         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_NUM_OPEN_NETWORKS_KEPT}
1426         * instead
1427         */
1428        @Deprecated
1429        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Secure.WIFI_NUM_OPEN_NETWORKS_KEPT;
1430
1431        /**
1432         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_ON} instead
1433         */
1434        @Deprecated
1435        public static final String WIFI_ON = Secure.WIFI_ON;
1436
1437        /**
1438         * @deprecated Use
1439         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
1440         * instead
1441         */
1442        @Deprecated
1443        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
1444                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
1445
1446        /**
1447         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
1448         */
1449        @Deprecated
1450        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
1451
1452        /**
1453         * @deprecated Use
1454         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
1455         */
1456        @Deprecated
1457        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
1458                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
1459
1460        /**
1461         * @deprecated Use
1462         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
1463         */
1464        @Deprecated
1465        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
1466                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
1467
1468        /**
1469         * @deprecated Use
1470         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
1471         * instead
1472         */
1473        @Deprecated
1474        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
1475                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
1476
1477        /**
1478         * @deprecated Use
1479         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
1480         */
1481        @Deprecated
1482        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
1483            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
1484
1485        /**
1486         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
1487         * instead
1488         */
1489        @Deprecated
1490        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
1491
1492        /**
1493         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ON} instead
1494         */
1495        @Deprecated
1496        public static final String WIFI_WATCHDOG_ON = Secure.WIFI_WATCHDOG_ON;
1497
1498        /**
1499         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
1500         */
1501        @Deprecated
1502        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
1503
1504        /**
1505         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
1506         * instead
1507         */
1508        @Deprecated
1509        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
1510
1511        /**
1512         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
1513         * instead
1514         */
1515        @Deprecated
1516        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
1517            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
1518    }
1519
1520    /**
1521     * Secure system settings, containing system preferences that applications
1522     * can read but are not allowed to write.  These are for preferences that
1523     * the user must explicitly modify through the system UI or specialized
1524     * APIs for those values, not modified directly by applications.
1525     */
1526    public static final class Secure extends NameValueTable {
1527        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_secure_version";
1528
1529        private static volatile NameValueCache mNameValueCache = null;
1530
1531        /**
1532         * Look up a name in the database.
1533         * @param resolver to access the database with
1534         * @param name to look up in the table
1535         * @return the corresponding value, or null if not present
1536         */
1537        public synchronized static String getString(ContentResolver resolver, String name) {
1538            if (mNameValueCache == null) {
1539                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
1540            }
1541            return mNameValueCache.getString(resolver, name);
1542        }
1543
1544        /**
1545         * Store a name/value pair into the database.
1546         * @param resolver to access the database with
1547         * @param name to store
1548         * @param value to associate with the name
1549         * @return true if the value was set, false on database errors
1550         */
1551        public static boolean putString(ContentResolver resolver,
1552                String name, String value) {
1553            return putString(resolver, CONTENT_URI, name, value);
1554        }
1555
1556        /**
1557         * Construct the content URI for a particular name/value pair,
1558         * useful for monitoring changes with a ContentObserver.
1559         * @param name to look up in the table
1560         * @return the corresponding content URI, or null if not present
1561         */
1562        public static Uri getUriFor(String name) {
1563            return getUriFor(CONTENT_URI, name);
1564        }
1565
1566        /**
1567         * Convenience function for retrieving a single secure settings value
1568         * as an integer.  Note that internally setting values are always
1569         * stored as strings; this function converts the string to an integer
1570         * for you.  The default value will be returned if the setting is
1571         * not defined or not an integer.
1572         *
1573         * @param cr The ContentResolver to access.
1574         * @param name The name of the setting to retrieve.
1575         * @param def Value to return if the setting is not defined.
1576         *
1577         * @return The setting's current value, or 'def' if it is not defined
1578         * or not a valid integer.
1579         */
1580        public static int getInt(ContentResolver cr, String name, int def) {
1581            String v = getString(cr, name);
1582            try {
1583                return v != null ? Integer.parseInt(v) : def;
1584            } catch (NumberFormatException e) {
1585                return def;
1586            }
1587        }
1588
1589        /**
1590         * Convenience function for retrieving a single secure settings value
1591         * as an integer.  Note that internally setting values are always
1592         * stored as strings; this function converts the string to an integer
1593         * for you.
1594         * <p>
1595         * This version does not take a default value.  If the setting has not
1596         * been set, or the string value is not a number,
1597         * it throws {@link SettingNotFoundException}.
1598         *
1599         * @param cr The ContentResolver to access.
1600         * @param name The name of the setting to retrieve.
1601         *
1602         * @throws SettingNotFoundException Thrown if a setting by the given
1603         * name can't be found or the setting value is not an integer.
1604         *
1605         * @return The setting's current value.
1606         */
1607        public static int getInt(ContentResolver cr, String name)
1608                throws SettingNotFoundException {
1609            String v = getString(cr, name);
1610            try {
1611                return Integer.parseInt(v);
1612            } catch (NumberFormatException e) {
1613                throw new SettingNotFoundException(name);
1614            }
1615        }
1616
1617        /**
1618         * Convenience function for updating a single settings value as an
1619         * integer. This will either create a new entry in the table if the
1620         * given name does not exist, or modify the value of the existing row
1621         * with that name.  Note that internally setting values are always
1622         * stored as strings, so this function converts the given value to a
1623         * string before storing it.
1624         *
1625         * @param cr The ContentResolver to access.
1626         * @param name The name of the setting to modify.
1627         * @param value The new value for the setting.
1628         * @return true if the value was set, false on database errors
1629         */
1630        public static boolean putInt(ContentResolver cr, String name, int value) {
1631            return putString(cr, name, Integer.toString(value));
1632        }
1633
1634        /**
1635         * Convenience function for retrieving a single secure settings value
1636         * as a {@code long}.  Note that internally setting values are always
1637         * stored as strings; this function converts the string to a {@code long}
1638         * for you.  The default value will be returned if the setting is
1639         * not defined or not a {@code long}.
1640         *
1641         * @param cr The ContentResolver to access.
1642         * @param name The name of the setting to retrieve.
1643         * @param def Value to return if the setting is not defined.
1644         *
1645         * @return The setting's current value, or 'def' if it is not defined
1646         * or not a valid {@code long}.
1647         */
1648        public static long getLong(ContentResolver cr, String name, long def) {
1649            String valString = getString(cr, name);
1650            long value;
1651            try {
1652                value = valString != null ? Long.parseLong(valString) : def;
1653            } catch (NumberFormatException e) {
1654                value = def;
1655            }
1656            return value;
1657        }
1658
1659        /**
1660         * Convenience function for retrieving a single secure settings value
1661         * as a {@code long}.  Note that internally setting values are always
1662         * stored as strings; this function converts the string to a {@code long}
1663         * for you.
1664         * <p>
1665         * This version does not take a default value.  If the setting has not
1666         * been set, or the string value is not a number,
1667         * it throws {@link SettingNotFoundException}.
1668         *
1669         * @param cr The ContentResolver to access.
1670         * @param name The name of the setting to retrieve.
1671         *
1672         * @return The setting's current value.
1673         * @throws SettingNotFoundException Thrown if a setting by the given
1674         * name can't be found or the setting value is not an integer.
1675         */
1676        public static long getLong(ContentResolver cr, String name)
1677                throws SettingNotFoundException {
1678            String valString = getString(cr, name);
1679            try {
1680                return Long.parseLong(valString);
1681            } catch (NumberFormatException e) {
1682                throw new SettingNotFoundException(name);
1683            }
1684        }
1685
1686        /**
1687         * Convenience function for updating a secure settings value as a long
1688         * integer. This will either create a new entry in the table if the
1689         * given name does not exist, or modify the value of the existing row
1690         * with that name.  Note that internally setting values are always
1691         * stored as strings, so this function converts the given value to a
1692         * string before storing it.
1693         *
1694         * @param cr The ContentResolver to access.
1695         * @param name The name of the setting to modify.
1696         * @param value The new value for the setting.
1697         * @return true if the value was set, false on database errors
1698         */
1699        public static boolean putLong(ContentResolver cr, String name, long value) {
1700            return putString(cr, name, Long.toString(value));
1701        }
1702
1703        /**
1704         * Convenience function for retrieving a single secure settings value
1705         * as a floating point number.  Note that internally setting values are
1706         * always stored as strings; this function converts the string to an
1707         * float for you. The default value will be returned if the setting
1708         * is not defined or not a valid float.
1709         *
1710         * @param cr The ContentResolver to access.
1711         * @param name The name of the setting to retrieve.
1712         * @param def Value to return if the setting is not defined.
1713         *
1714         * @return The setting's current value, or 'def' if it is not defined
1715         * or not a valid float.
1716         */
1717        public static float getFloat(ContentResolver cr, String name, float def) {
1718            String v = getString(cr, name);
1719            try {
1720                return v != null ? Float.parseFloat(v) : def;
1721            } catch (NumberFormatException e) {
1722                return def;
1723            }
1724        }
1725
1726        /**
1727         * Convenience function for retrieving a single secure settings value
1728         * as a float.  Note that internally setting values are always
1729         * stored as strings; this function converts the string to a float
1730         * for you.
1731         * <p>
1732         * This version does not take a default value.  If the setting has not
1733         * been set, or the string value is not a number,
1734         * it throws {@link SettingNotFoundException}.
1735         *
1736         * @param cr The ContentResolver to access.
1737         * @param name The name of the setting to retrieve.
1738         *
1739         * @throws SettingNotFoundException Thrown if a setting by the given
1740         * name can't be found or the setting value is not a float.
1741         *
1742         * @return The setting's current value.
1743         */
1744        public static float getFloat(ContentResolver cr, String name)
1745                throws SettingNotFoundException {
1746            String v = getString(cr, name);
1747            try {
1748                return Float.parseFloat(v);
1749            } catch (NumberFormatException e) {
1750                throw new SettingNotFoundException(name);
1751            }
1752        }
1753
1754        /**
1755         * Convenience function for updating a single settings value as a
1756         * floating point number. This will either create a new entry in the
1757         * table if the given name does not exist, or modify the value of the
1758         * existing row with that name.  Note that internally setting values
1759         * are always stored as strings, so this function converts the given
1760         * value to a string before storing it.
1761         *
1762         * @param cr The ContentResolver to access.
1763         * @param name The name of the setting to modify.
1764         * @param value The new value for the setting.
1765         * @return true if the value was set, false on database errors
1766         */
1767        public static boolean putFloat(ContentResolver cr, String name, float value) {
1768            return putString(cr, name, Float.toString(value));
1769        }
1770
1771        /**
1772         * The content:// style URL for this table
1773         */
1774        public static final Uri CONTENT_URI =
1775            Uri.parse("content://" + AUTHORITY + "/secure");
1776
1777        /**
1778         * Whether ADB is enabled.
1779         */
1780        public static final String ADB_ENABLED = "adb_enabled";
1781
1782        /**
1783         * Setting to allow mock locations and location provider status to be injected into the
1784         * LocationManager service for testing purposes during application development.  These
1785         * locations and status values  override actual location and status information generated
1786         * by network, gps, or other location providers.
1787         */
1788        public static final String ALLOW_MOCK_LOCATION = "mock_location";
1789
1790        /**
1791         * The Android ID (a unique 64-bit value) as a hex string.
1792         * Identical to that obtained by calling
1793         * GoogleLoginService.getAndroidId(); it is also placed here
1794         * so you can get it without binding to a service.
1795         */
1796        public static final String ANDROID_ID = "android_id";
1797
1798        /**
1799         * Whether bluetooth is enabled/disabled
1800         * 0=disabled. 1=enabled.
1801         */
1802        public static final String BLUETOOTH_ON = "bluetooth_on";
1803
1804        /**
1805         * Get the key that retrieves a bluetooth headset's priority.
1806         * @hide
1807         */
1808        public static final String getBluetoothHeadsetPriorityKey(String address) {
1809            return ("bluetooth_headset_priority_" + address.toUpperCase());
1810        }
1811
1812        /**
1813         * Get the key that retrieves a bluetooth a2dp sink's priority.
1814         * @hide
1815         */
1816        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
1817            return ("bluetooth_a2dp_sink_priority_" + address.toUpperCase());
1818        }
1819
1820        /**
1821         * Whether or not data roaming is enabled. (0 = false, 1 = true)
1822         */
1823        public static final String DATA_ROAMING = "data_roaming";
1824
1825        /**
1826         * Setting to record the input method used by default, holding the ID
1827         * of the desired method.
1828         */
1829        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
1830
1831        /**
1832         * Whether the device has been provisioned (0 = false, 1 = true)
1833         */
1834        public static final String DEVICE_PROVISIONED = "device_provisioned";
1835
1836        /**
1837         * List of input methods that are currently enabled.  This is a string
1838         * containing the IDs of all enabled input methods, each ID separated
1839         * by ':'.
1840         */
1841        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
1842
1843        /**
1844         * Host name and port for a user-selected proxy.
1845         */
1846        public static final String HTTP_PROXY = "http_proxy";
1847
1848        /**
1849         * Whether the package installer should allow installation of apps downloaded from
1850         * sources other than the Android Market (vending machine).
1851         *
1852         * 1 = allow installing from other sources
1853         * 0 = only allow installing from the Android Market
1854         */
1855        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
1856
1857        /**
1858         * Comma-separated list of location providers that activities may access.
1859         */
1860        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
1861
1862        /**
1863         * The Logging ID (a unique 64-bit value) as a hex string.
1864         * Used as a pseudonymous identifier for logging.
1865         * @deprecated This identifier is poorly initialized and has
1866         * many collisions.  It should not be used.
1867         */
1868        @Deprecated
1869        public static final String LOGGING_ID = "logging_id";
1870
1871        /**
1872         * The Logging ID (a unique 64-bit value) as a hex string.
1873         * Used as a pseudonymous identifier for logging.
1874         * @hide
1875         */
1876        public static final String LOGGING_ID2 = "logging_id2";
1877
1878        /**
1879         * User preference for which network(s) should be used. Only the
1880         * connectivity service should touch this.
1881         */
1882        public static final String NETWORK_PREFERENCE = "network_preference";
1883
1884        /**
1885         */
1886        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
1887
1888        /**
1889         */
1890        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
1891
1892        /**
1893         */
1894        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
1895
1896        /**
1897         * Settings classname to launch when Settings is clicked from All
1898         * Applications.  Needed because of user testing between the old
1899         * and new Settings apps.
1900         */
1901        // TODO: 881807
1902        public static final String SETTINGS_CLASSNAME = "settings_classname";
1903
1904        /**
1905         * USB Mass Storage Enabled
1906         */
1907        public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
1908
1909        /**
1910         * If this setting is set (to anything), then all references
1911         * to Gmail on the device must change to Google Mail.
1912         */
1913        public static final String USE_GOOGLE_MAIL = "use_google_mail";
1914
1915        /**
1916         * If accessibility is enabled.
1917         */
1918        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
1919
1920        /**
1921         * List of the enabled accessibility providers.
1922         */
1923        public static final String ENABLED_ACCESSIBILITY_SERVICES =
1924            "enabled_accessibility_services";
1925
1926        /**
1927         * Whether to notify the user of open networks.
1928         * <p>
1929         * If not connected and the scan results have an open network, we will
1930         * put this notification up. If we attempt to connect to a network or
1931         * the open network(s) disappear, we remove the notification. When we
1932         * show the notification, we will not show it again for
1933         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
1934         */
1935        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1936                "wifi_networks_available_notification_on";
1937
1938        /**
1939         * Delay (in seconds) before repeating the Wi-Fi networks available notification.
1940         * Connecting to a network will reset the timer.
1941         */
1942        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1943                "wifi_networks_available_repeat_delay";
1944
1945        /**
1946         * The number of radio channels that are allowed in the local
1947         * 802.11 regulatory domain.
1948         * @hide
1949         */
1950        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
1951
1952        /**
1953         * When the number of open networks exceeds this number, the
1954         * least-recently-used excess networks will be removed.
1955         */
1956        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
1957
1958        /**
1959         * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
1960         */
1961        public static final String WIFI_ON = "wifi_on";
1962
1963        /**
1964         * The acceptable packet loss percentage (range 0 - 100) before trying
1965         * another AP on the same network.
1966         */
1967        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
1968                "wifi_watchdog_acceptable_packet_loss_percentage";
1969
1970        /**
1971         * The number of access points required for a network in order for the
1972         * watchdog to monitor it.
1973         */
1974        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
1975
1976        /**
1977         * The delay between background checks.
1978         */
1979        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
1980                "wifi_watchdog_background_check_delay_ms";
1981
1982        /**
1983         * Whether the Wi-Fi watchdog is enabled for background checking even
1984         * after it thinks the user has connected to a good access point.
1985         */
1986        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
1987                "wifi_watchdog_background_check_enabled";
1988
1989        /**
1990         * The timeout for a background ping
1991         */
1992        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
1993                "wifi_watchdog_background_check_timeout_ms";
1994
1995        /**
1996         * The number of initial pings to perform that *may* be ignored if they
1997         * fail. Again, if these fail, they will *not* be used in packet loss
1998         * calculation. For example, one network always seemed to time out for
1999         * the first couple pings, so this is set to 3 by default.
2000         */
2001        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
2002            "wifi_watchdog_initial_ignored_ping_count";
2003
2004        /**
2005         * The maximum number of access points (per network) to attempt to test.
2006         * If this number is reached, the watchdog will no longer monitor the
2007         * initial connection state for the network. This is a safeguard for
2008         * networks containing multiple APs whose DNS does not respond to pings.
2009         */
2010        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
2011
2012        /**
2013         * Whether the Wi-Fi watchdog is enabled.
2014         */
2015        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
2016
2017        /**
2018         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
2019         */
2020        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
2021
2022        /**
2023         * The number of pings to test if an access point is a good connection.
2024         */
2025        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
2026
2027        /**
2028         * The delay between pings.
2029         */
2030        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
2031
2032        /**
2033         * The timeout per ping.
2034         */
2035        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
2036
2037        /**
2038         * The maximum number of times we will retry a connection to an access
2039         * point for which we have failed in acquiring an IP address from DHCP.
2040         * A value of N means that we will make N+1 connection attempts in all.
2041         */
2042        public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
2043
2044        /**
2045         * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
2046         * data connectivity to be established after a disconnect from Wi-Fi.
2047         */
2048        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
2049            "wifi_mobile_data_transition_wakelock_timeout_ms";
2050
2051        /**
2052         * Whether background data usage is allowed by the user. See
2053         * ConnectivityManager for more info.
2054         */
2055        public static final String BACKGROUND_DATA = "background_data";
2056
2057        /**
2058         * The CDMA roaming mode 0 = Home Networks, CDMA default
2059         *                       1 = Roaming on Affiliated networks
2060         *                       2 = Roaming on any networks
2061         * @hide
2062         */
2063        public static final String CDMA_ROAMING_MODE = "roaming_settings";
2064
2065        /**
2066         * The CDMA subscription mode 0 = RUIM/SIM (default)
2067         *                                1 = NV
2068         * @hide
2069         */
2070        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
2071
2072        /**
2073         * The preferred network mode   7 = Global
2074         *                              6 = EvDo only
2075         *                              5 = CDMA w/o EvDo
2076         *                              4 = CDMA / EvDo auto
2077         *                              3 = GSM / WCDMA auto
2078         *                              2 = WCDMA only
2079         *                              1 = GSM only
2080         *                              0 = GSM / WCDMA preferred
2081         * @hide
2082         */
2083        public static final String PREFERRED_NETWORK_MODE =
2084                "preferred_network_mode";
2085
2086        /**
2087         * The preferred TTY mode     0 = TTy Off, CDMA default
2088         *                            1 = TTY Full
2089         *                            2 = TTY HCO
2090         *                            3 = TTY VCO
2091         * @hide
2092         */
2093        public static final String PREFERRED_TTY_MODE =
2094                "preferred_tty_mode";
2095
2096
2097        /**
2098         * CDMA Cell Broadcast SMS
2099         *                            0 = CDMA Cell Broadcast SMS disabled
2100         *                            1 = CDMA Cell Broadcast SMS enabled
2101         * @hide
2102         */
2103        public static final String CDMA_CELL_BROADCAST_SMS =
2104                "cdma_cell_broadcast_sms";
2105
2106        /**
2107         * The cdma subscription 0 = Subscription from RUIM, when available
2108         *                       1 = Subscription from NV
2109         * @hide
2110         */
2111        public static final String PREFERRED_CDMA_SUBSCRIPTION =
2112                "preferred_cdma_subscription";
2113
2114        /**
2115         * Whether the enhanced voice privacy mode is enabled.
2116         * 0 = normal voice privacy
2117         * 1 = enhanced voice privacy
2118         * @hide
2119         */
2120        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
2121
2122        /**
2123         * Whether the TTY mode mode is enabled.
2124         * 0 = disabled
2125         * 1 = enabled
2126         * @hide
2127         */
2128        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
2129
2130        /**
2131         * Helper method for determining if a location provider is enabled.
2132         * @param cr the content resolver to use
2133         * @param provider the location provider to query
2134         * @return true if the provider is enabled
2135         *
2136         * @hide
2137         */
2138        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
2139            String allowedProviders = Settings.Secure.getString(cr, LOCATION_PROVIDERS_ALLOWED);
2140            if (allowedProviders != null) {
2141                return (allowedProviders.equals(provider) ||
2142                        allowedProviders.contains("," + provider + ",") ||
2143                        allowedProviders.startsWith(provider + ",") ||
2144                        allowedProviders.endsWith("," + provider));
2145            }
2146            return false;
2147        }
2148
2149        /**
2150         * Thread-safe method for enabling or disabling a single location provider.
2151         * @param cr the content resolver to use
2152         * @param provider the location provider to enable or disable
2153         * @param enabled true if the provider should be enabled
2154         *
2155         * @hide
2156         */
2157        public static final void setLocationProviderEnabled(ContentResolver cr,
2158                String provider, boolean enabled) {
2159            // to ensure thread safety, we write the provider name with a '+' or '-'
2160            // and let the SettingsProvider handle it rather than reading and modifying
2161            // the list of enabled providers.
2162            if (enabled) {
2163                provider = "+" + provider;
2164            } else {
2165                provider = "-" + provider;
2166            }
2167            putString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider);
2168        }
2169    }
2170
2171    /**
2172     * Gservices settings, containing the network names for Google's
2173     * various services. This table holds simple name/addr pairs.
2174     * Addresses can be accessed through the getString() method.
2175     *
2176     * TODO: This should move to partner/google/... somewhere.
2177     *
2178     * @hide
2179     */
2180    public static final class Gservices extends NameValueTable {
2181        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_gservices_version";
2182
2183        /**
2184         * Intent action broadcast when the Gservices table is updated by the server.
2185         * This is broadcast once after settings change (so many values may have been updated).
2186         */
2187        @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2188        public static final String CHANGED_ACTION =
2189            "com.google.gservices.intent.action.GSERVICES_CHANGED";
2190
2191        /**
2192         * Intent action to override Gservices for testing.  (Requires WRITE_GSERVICES permission.)
2193         */
2194        @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
2195        public static final String OVERRIDE_ACTION =
2196            "com.google.gservices.intent.action.GSERVICES_OVERRIDE";
2197
2198        private static volatile NameValueCache mNameValueCache = null;
2199        private static final Object mNameValueCacheLock = new Object();
2200
2201        /**
2202         * Look up a name in the database.
2203         * @param resolver to access the database with
2204         * @param name to look up in the table
2205         * @return the corresponding value, or null if not present
2206         */
2207        public static String getString(ContentResolver resolver, String name) {
2208            synchronized (mNameValueCacheLock) {
2209                if (mNameValueCache == null) {
2210                    mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
2211                }
2212                return mNameValueCache.getString(resolver, name);
2213            }
2214        }
2215
2216        /**
2217         * Store a name/value pair into the database.
2218         * @param resolver to access the database with
2219         * @param name to store
2220         * @param value to associate with the name
2221         * @return true if the value was set, false on database errors
2222         */
2223        public static boolean putString(ContentResolver resolver,
2224                String name, String value) {
2225            return putString(resolver, CONTENT_URI, name, value);
2226        }
2227
2228        /**
2229         * Look up the value for name in the database, convert it to an int using Integer.parseInt
2230         * and return it. If it is null or if a NumberFormatException is caught during the
2231         * conversion then return defValue.
2232         */
2233        public static int getInt(ContentResolver resolver, String name, int defValue) {
2234            String valString = getString(resolver, name);
2235            int value;
2236            try {
2237                value = valString != null ? Integer.parseInt(valString) : defValue;
2238            } catch (NumberFormatException e) {
2239                value = defValue;
2240            }
2241            return value;
2242        }
2243
2244        /**
2245         * Look up the value for name in the database, convert it to a long using Long.parseLong
2246         * and return it. If it is null or if a NumberFormatException is caught during the
2247         * conversion then return defValue.
2248         */
2249        public static long getLong(ContentResolver resolver, String name, long defValue) {
2250            String valString = getString(resolver, name);
2251            long value;
2252            try {
2253                value = valString != null ? Long.parseLong(valString) : defValue;
2254            } catch (NumberFormatException e) {
2255                value = defValue;
2256            }
2257            return value;
2258        }
2259
2260        /**
2261         * Construct the content URI for a particular name/value pair,
2262         * useful for monitoring changes with a ContentObserver.
2263         * @param name to look up in the table
2264         * @return the corresponding content URI, or null if not present
2265         */
2266        public static Uri getUriFor(String name) {
2267            return getUriFor(CONTENT_URI, name);
2268        }
2269
2270        /**
2271         * The content:// style URL for this table
2272         */
2273        public static final Uri CONTENT_URI =
2274                Uri.parse("content://" + AUTHORITY + "/gservices");
2275
2276        /**
2277         * MMS - URL to use for HTTP "x-wap-profile" header
2278         */
2279        public static final String MMS_X_WAP_PROFILE_URL
2280                = "mms_x_wap_profile_url";
2281
2282        /**
2283         * YouTube - the flag to indicate whether to use proxy
2284         */
2285        public static final String YOUTUBE_USE_PROXY
2286                = "youtube_use_proxy";
2287
2288        /**
2289         * MMS - maximum message size in bytes for a MMS message.
2290         */
2291        public static final String MMS_MAXIMUM_MESSAGE_SIZE
2292                = "mms_maximum_message_size";
2293
2294        /**
2295         * Event tags from the kernel event log to upload during checkin.
2296         */
2297        public static final String CHECKIN_EVENTS = "checkin_events";
2298
2299        /**
2300         * Event tags for list of services to upload during checkin.
2301         */
2302        public static final String CHECKIN_DUMPSYS_LIST = "checkin_dumpsys_list";
2303
2304        /**
2305         * The interval (in seconds) between periodic checkin attempts.
2306         */
2307        public static final String CHECKIN_INTERVAL = "checkin_interval";
2308
2309        /**
2310         * Boolean indicating if the market app should force market only checkins on
2311         * install/uninstall. Any non-0 value is considered true.
2312         */
2313        public static final String MARKET_FORCE_CHECKIN = "market_force_checkin";
2314
2315        /**
2316         * How frequently (in seconds) to check the memory status of the
2317         * device.
2318         */
2319        public static final String MEMCHECK_INTERVAL = "memcheck_interval";
2320
2321        /**
2322         * Max frequency (in seconds) to log memory check stats, in realtime
2323         * seconds.  This allows for throttling of logs when the device is
2324         * running for large amounts of time.
2325         */
2326        public static final String MEMCHECK_LOG_REALTIME_INTERVAL =
2327                "memcheck_log_realtime_interval";
2328
2329        /**
2330         * Boolean indicating whether rebooting due to system memory checks
2331         * is enabled.
2332         */
2333        public static final String MEMCHECK_SYSTEM_ENABLED = "memcheck_system_enabled";
2334
2335        /**
2336         * How many bytes the system process must be below to avoid scheduling
2337         * a soft reboot.  This reboot will happen when it is next determined
2338         * to be a good time.
2339         */
2340        public static final String MEMCHECK_SYSTEM_SOFT_THRESHOLD = "memcheck_system_soft";
2341
2342        /**
2343         * How many bytes the system process must be below to avoid scheduling
2344         * a hard reboot.  This reboot will happen immediately.
2345         */
2346        public static final String MEMCHECK_SYSTEM_HARD_THRESHOLD = "memcheck_system_hard";
2347
2348        /**
2349         * How many bytes the phone process must be below to avoid scheduling
2350         * a soft restart.  This restart will happen when it is next determined
2351         * to be a good time.
2352         */
2353        public static final String MEMCHECK_PHONE_SOFT_THRESHOLD = "memcheck_phone_soft";
2354
2355        /**
2356         * How many bytes the phone process must be below to avoid scheduling
2357         * a hard restart.  This restart will happen immediately.
2358         */
2359        public static final String MEMCHECK_PHONE_HARD_THRESHOLD = "memcheck_phone_hard";
2360
2361        /**
2362         * Boolean indicating whether restarting the phone process due to
2363         * memory checks is enabled.
2364         */
2365        public static final String MEMCHECK_PHONE_ENABLED = "memcheck_phone_enabled";
2366
2367        /**
2368         * First time during the day it is okay to kill processes
2369         * or reboot the device due to low memory situations.  This number is
2370         * in seconds since midnight.
2371         */
2372        public static final String MEMCHECK_EXEC_START_TIME = "memcheck_exec_start_time";
2373
2374        /**
2375         * Last time during the day it is okay to kill processes
2376         * or reboot the device due to low memory situations.  This number is
2377         * in seconds since midnight.
2378         */
2379        public static final String MEMCHECK_EXEC_END_TIME = "memcheck_exec_end_time";
2380
2381        /**
2382         * How long the screen must have been off in order to kill processes
2383         * or reboot.  This number is in seconds.  A value of -1 means to
2384         * entirely disregard whether the screen is on.
2385         */
2386        public static final String MEMCHECK_MIN_SCREEN_OFF = "memcheck_min_screen_off";
2387
2388        /**
2389         * How much time there must be until the next alarm in order to kill processes
2390         * or reboot.  This number is in seconds.  Note: this value must be
2391         * smaller than {@link #MEMCHECK_RECHECK_INTERVAL} or else it will
2392         * always see an alarm scheduled within its time.
2393         */
2394        public static final String MEMCHECK_MIN_ALARM = "memcheck_min_alarm";
2395
2396        /**
2397         * How frequently to check whether it is a good time to restart things,
2398         * if the device is in a bad state.  This number is in seconds.  Note:
2399         * this value must be larger than {@link #MEMCHECK_MIN_ALARM} or else
2400         * the alarm to schedule the recheck will always appear within the
2401         * minimum "do not execute now" time.
2402         */
2403        public static final String MEMCHECK_RECHECK_INTERVAL = "memcheck_recheck_interval";
2404
2405        /**
2406         * How frequently (in DAYS) to reboot the device.  If 0, no reboots
2407         * will occur.
2408         */
2409        public static final String REBOOT_INTERVAL = "reboot_interval";
2410
2411        /**
2412         * First time during the day it is okay to force a reboot of the
2413         * device (if REBOOT_INTERVAL is set).  This number is
2414         * in seconds since midnight.
2415         */
2416        public static final String REBOOT_START_TIME = "reboot_start_time";
2417
2418        /**
2419         * The window of time (in seconds) after each REBOOT_INTERVAL in which
2420         * a reboot can be executed.  If 0, a reboot will always be executed at
2421         * exactly the given time.  Otherwise, it will only be executed if
2422         * the device is idle within the window.
2423         */
2424        public static final String REBOOT_WINDOW = "reboot_window";
2425
2426        /**
2427         * The minimum version of the server that is required in order for the device to accept
2428         * the server's recommendations about the initial sync settings to use. When this is unset,
2429         * blank or can't be interpreted as an integer then we will not ask the server for a
2430         * recommendation.
2431         */
2432        public static final String GMAIL_CONFIG_INFO_MIN_SERVER_VERSION =
2433                "gmail_config_info_min_server_version";
2434
2435        /**
2436         * Controls whether Gmail offers a preview button for images.
2437         */
2438        public static final String GMAIL_DISALLOW_IMAGE_PREVIEWS = "gmail_disallow_image_previews";
2439
2440        /**
2441         * The maximal size in bytes allowed for attachments when composing messages in Gmail
2442         */
2443        public static final String GMAIL_MAX_ATTACHMENT_SIZE = "gmail_max_attachment_size_bytes";
2444
2445        /**
2446         * The timeout in milliseconds that Gmail uses when opening a connection and reading
2447         * from it. A missing value or a value of -1 instructs Gmail to use the defaults provided
2448         * by GoogleHttpClient.
2449         */
2450        public static final String GMAIL_TIMEOUT_MS = "gmail_timeout_ms";
2451
2452        /**
2453         * Controls whether Gmail will request an expedited sync when a message is sent. Value must
2454         * be an integer where non-zero means true. Defaults to 1.
2455         */
2456        public static final String GMAIL_SEND_IMMEDIATELY = "gmail_send_immediately";
2457
2458        /**
2459         * Controls whether gmail buffers server responses.  Possible values are "memory", for a
2460         * memory-based buffer, or "file", for a temp-file-based buffer.  All other values
2461         * (including not set) disable buffering.
2462         */
2463        public static final String GMAIL_BUFFER_SERVER_RESPONSE = "gmail_buffer_server_response";
2464
2465        /**
2466         * Controls whether Gmail will discard uphill operations that repeatedly fail. Value must be
2467         * an integer where non-zero means true. Defaults to 1.
2468         */
2469        public static final String GMAIL_DISCARD_ERROR_UPHILL_OP = "gmail_discard_error_uphill_op";
2470
2471        /**
2472         * Hostname of the GTalk server.
2473         */
2474        public static final String GTALK_SERVICE_HOSTNAME = "gtalk_hostname";
2475
2476        /**
2477         * Secure port of the GTalk server.
2478         */
2479        public static final String GTALK_SERVICE_SECURE_PORT = "gtalk_secure_port";
2480
2481        /**
2482         * The server configurable RMQ acking interval
2483         */
2484        public static final String GTALK_SERVICE_RMQ_ACK_INTERVAL = "gtalk_rmq_ack_interval";
2485
2486        /**
2487         * The minimum reconnect delay for short network outages or when the network is suspended
2488         * due to phone use.
2489         */
2490        public static final String GTALK_SERVICE_MIN_RECONNECT_DELAY_SHORT =
2491                "gtalk_min_reconnect_delay_short";
2492
2493        /**
2494         * The reconnect variant range for short network outages or when the network is suspended
2495         * due to phone use. A random number between 0 and this constant is computed and
2496         * added to {@link #GTALK_SERVICE_MIN_RECONNECT_DELAY_SHORT} to form the initial reconnect
2497         * delay.
2498         */
2499        public static final String GTALK_SERVICE_RECONNECT_VARIANT_SHORT =
2500                "gtalk_reconnect_variant_short";
2501
2502        /**
2503         * The minimum reconnect delay for long network outages
2504         */
2505        public static final String GTALK_SERVICE_MIN_RECONNECT_DELAY_LONG =
2506                "gtalk_min_reconnect_delay_long";
2507
2508        /**
2509         * The reconnect variant range for long network outages.  A random number between 0 and this
2510         * constant is computed and added to {@link #GTALK_SERVICE_MIN_RECONNECT_DELAY_LONG} to
2511         * form the initial reconnect delay.
2512         */
2513        public static final String GTALK_SERVICE_RECONNECT_VARIANT_LONG =
2514                "gtalk_reconnect_variant_long";
2515
2516        /**
2517         * The maximum reconnect delay time, in milliseconds.
2518         */
2519        public static final String GTALK_SERVICE_MAX_RECONNECT_DELAY =
2520                "gtalk_max_reconnect_delay";
2521
2522        /**
2523         * The network downtime that is considered "short" for the above calculations,
2524         * in milliseconds.
2525         */
2526        public static final String GTALK_SERVICE_SHORT_NETWORK_DOWNTIME =
2527                "gtalk_short_network_downtime";
2528
2529        /**
2530         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2531         * will reset the heartbeat timer. The away heartbeat should be used when the user is
2532         * logged into the GTalk app, but not actively using it.
2533         */
2534        public static final String GTALK_SERVICE_AWAY_HEARTBEAT_INTERVAL_MS =
2535                "gtalk_heartbeat_ping_interval_ms";  // keep the string backward compatible
2536
2537        /**
2538         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2539         * will reset the heartbeat timer. The active heartbeat should be used when the user is
2540         * actively using the GTalk app.
2541         */
2542        public static final String GTALK_SERVICE_ACTIVE_HEARTBEAT_INTERVAL_MS =
2543                "gtalk_active_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 sync heartbeat should be used when the user isn't
2548         * logged into the GTalk app, but auto-sync is enabled.
2549         */
2550        public static final String GTALK_SERVICE_SYNC_HEARTBEAT_INTERVAL_MS =
2551                "gtalk_sync_heartbeat_ping_interval_ms";
2552
2553        /**
2554         * How frequently we send heartbeat pings to the GTalk server. Receiving a server packet
2555         * will reset the heartbeat timer. The no sync heartbeat should be used when the user isn't
2556         * logged into the GTalk app, and auto-sync is not enabled.
2557         */
2558        public static final String GTALK_SERVICE_NOSYNC_HEARTBEAT_INTERVAL_MS =
2559                "gtalk_nosync_heartbeat_ping_interval_ms";
2560
2561        /**
2562         * How long we wait to receive a heartbeat ping acknowledgement (or another packet)
2563         * from the GTalk server, before deeming the connection dead.
2564         */
2565        public static final String GTALK_SERVICE_HEARTBEAT_ACK_TIMEOUT_MS =
2566                "gtalk_heartbeat_ack_timeout_ms";
2567
2568        /**
2569         * How long after screen is turned off before we consider the user to be idle.
2570         */
2571        public static final String GTALK_SERVICE_IDLE_TIMEOUT_MS =
2572                "gtalk_idle_timeout_ms";
2573
2574        /**
2575         * By default, GTalkService will always connect to the server regardless of the auto-sync
2576         * setting. However, if this parameter is true, then GTalkService will only connect
2577         * if auto-sync is enabled. Using the GTalk app will trigger the connection too.
2578         */
2579        public static final String GTALK_SERVICE_CONNECT_ON_AUTO_SYNC =
2580                "gtalk_connect_on_auto_sync";
2581
2582        /**
2583         * GTalkService holds a wakelock while broadcasting the intent for data message received.
2584         * It then automatically release the wakelock after a timeout. This setting controls what
2585         * the timeout should be.
2586         */
2587        public static final String GTALK_DATA_MESSAGE_WAKELOCK_MS =
2588                "gtalk_data_message_wakelock_ms";
2589
2590        /**
2591         * The socket read timeout used to control how long ssl handshake wait for reads before
2592         * timing out. This is needed so the ssl handshake doesn't hang for a long time in some
2593         * circumstances.
2594         */
2595        public static final String GTALK_SSL_HANDSHAKE_TIMEOUT_MS =
2596                "gtalk_ssl_handshake_timeout_ms";
2597
2598        /**
2599         * Compress the gtalk stream.
2600         */
2601        public static final String GTALK_COMPRESS = "gtalk_compress";
2602
2603        /**
2604         * This is the timeout for which Google Talk will send the message using bareJID. In a
2605         * established chat between two XMPP endpoints, Google Talk uses fullJID in the format
2606         * of user@domain/resource in order to send the message to the specific client. However,
2607         * if Google Talk hasn't received a message from that client after some time, it would
2608         * fall back to use the bareJID, which would broadcast the message to all clients for
2609         * the other user.
2610         */
2611        public static final String GTALK_USE_BARE_JID_TIMEOUT_MS = "gtalk_use_barejid_timeout_ms";
2612
2613        /**
2614         * Enable use of ssl session caching.
2615         * 'db' - save each session in a (per process) database
2616         * 'file' - save each session in a (per process) file
2617         * not set or any other value - normal java in-memory caching
2618         */
2619        public static final String SSL_SESSION_CACHE = "ssl_session_cache";
2620
2621        /**
2622         * How many bytes long a message has to be, in order to be gzipped.
2623         */
2624        public static final String SYNC_MIN_GZIP_BYTES =
2625                "sync_min_gzip_bytes";
2626
2627        /**
2628         * The hash value of the current provisioning settings
2629         */
2630        public static final String PROVISIONING_DIGEST = "digest";
2631
2632        /**
2633         * Provisioning keys to block from server update
2634         */
2635        public static final String PROVISIONING_OVERRIDE = "override";
2636
2637        /**
2638         * "Generic" service name for  authentication requests.
2639         */
2640        public static final String GOOGLE_LOGIN_GENERIC_AUTH_SERVICE
2641                = "google_login_generic_auth_service";
2642
2643        /**
2644         * Frequency in milliseconds at which we should sync the locally installed Vending Machine
2645         * content with the server.
2646         */
2647        public static final String VENDING_SYNC_FREQUENCY_MS = "vending_sync_frequency_ms";
2648
2649        /**
2650         * Support URL that is opened in a browser when user clicks on 'Help and Info' in Vending
2651         * Machine.
2652         */
2653        public static final String VENDING_SUPPORT_URL = "vending_support_url";
2654
2655        /**
2656         * Indicates if Vending Machine requires a SIM to be in the phone to allow a purchase.
2657         *
2658         * true = SIM is required
2659         * false = SIM is not required
2660         */
2661        public static final String VENDING_REQUIRE_SIM_FOR_PURCHASE =
2662                "vending_require_sim_for_purchase";
2663
2664        /**
2665         * The current version id of the Vending Machine terms of service.
2666         */
2667        public static final String VENDING_TOS_VERSION = "vending_tos_version";
2668
2669        /**
2670         * URL that points to the terms of service for Vending Machine.
2671         */
2672        public static final String VENDING_TOS_URL = "vending_tos_url";
2673
2674        /**
2675         * Whether to use sierraqa instead of sierra tokens for the purchase flow in
2676         * Vending Machine.
2677         *
2678         * true = use sierraqa
2679         * false = use sierra (default)
2680         */
2681        public static final String VENDING_USE_CHECKOUT_QA_SERVICE =
2682                "vending_use_checkout_qa_service";
2683
2684        /**
2685         * Default value to use for all/free/priced filter in Market.
2686         * Valid values: ALL, FREE, PAID (case insensitive)
2687         */
2688        public static final String VENDING_DEFAULT_FILTER = "vending_default_filter";
2689        /**
2690         * Ranking type value to use for the first category tab (currently popular)
2691         */
2692        public static final String VENDING_TAB_1_RANKING_TYPE = "vending_tab_1_ranking_type";
2693
2694        /**
2695         * Title string to use for first category tab.
2696         */
2697        public static final String VENDING_TAB_1_TITLE = "vending_tab_1_title";
2698
2699        /**
2700         * Ranking type value to use for the second category tab (currently newest)
2701         */
2702        public static final String VENDING_TAB_2_RANKING_TYPE = "vending_tab_2_ranking_type";
2703
2704        /**
2705         * Title string to use for second category tab.
2706         */
2707        public static final String VENDING_TAB_2_TITLE = "vending_tab_2_title";
2708
2709        /**
2710         * URL that points to the legal terms of service to display in Settings.
2711         * <p>
2712         * This should be a https URL. For a pretty user-friendly URL, use
2713         * {@link #SETTINGS_TOS_PRETTY_URL}.
2714         */
2715        public static final String SETTINGS_TOS_URL = "settings_tos_url";
2716
2717        /**
2718         * URL that points to the legal terms of service to display in Settings.
2719         * <p>
2720         * This should be a pretty http URL. For the URL the device will access
2721         * via Settings, use {@link #SETTINGS_TOS_URL}.
2722         */
2723        public static final String SETTINGS_TOS_PRETTY_URL = "settings_tos_pretty_url";
2724
2725        /**
2726         * URL that points to the contributors to display in Settings.
2727         * <p>
2728         * This should be a https URL. For a pretty user-friendly URL, use
2729         * {@link #SETTINGS_CONTRIBUTORS_PRETTY_URL}.
2730         */
2731        public static final String SETTINGS_CONTRIBUTORS_URL = "settings_contributors_url";
2732
2733        /**
2734         * URL that points to the contributors to display in Settings.
2735         * <p>
2736         * This should be a pretty http URL. For the URL the device will access
2737         * via Settings, use {@link #SETTINGS_CONTRIBUTORS_URL}.
2738         */
2739        public static final String SETTINGS_CONTRIBUTORS_PRETTY_URL =
2740                "settings_contributors_pretty_url";
2741
2742        /**
2743         * URL that points to the Terms Of Service for the device.
2744         * <p>
2745         * This should be a pretty http URL.
2746         */
2747        public static final String SETUP_GOOGLE_TOS_URL = "setup_google_tos_url";
2748
2749        /**
2750         * URL that points to the Android privacy policy for the device.
2751         * <p>
2752         * This should be a pretty http URL.
2753         */
2754        public static final String SETUP_ANDROID_PRIVACY_URL = "setup_android_privacy_url";
2755
2756        /**
2757         * URL that points to the Google privacy policy for the device.
2758         * <p>
2759         * This should be a pretty http URL.
2760         */
2761        public static final String SETUP_GOOGLE_PRIVACY_URL = "setup_google_privacy_url";
2762
2763        /**
2764         * Request an MSISDN token for various Google services.
2765         */
2766        public static final String USE_MSISDN_TOKEN = "use_msisdn_token";
2767
2768        /**
2769         * RSA public key used to encrypt passwords stored in the database.
2770         */
2771        public static final String GLS_PUBLIC_KEY = "google_login_public_key";
2772
2773        /**
2774         * Only check parental control status if this is set to "true".
2775         */
2776        public static final String PARENTAL_CONTROL_CHECK_ENABLED =
2777                "parental_control_check_enabled";
2778
2779        /**
2780         * The list of applications we need to block if parental control is
2781         * enabled.
2782         */
2783        public static final String PARENTAL_CONTROL_APPS_LIST =
2784                "parental_control_apps_list";
2785
2786        /**
2787         * Duration in which parental control status is valid.
2788         */
2789        public static final String PARENTAL_CONTROL_TIMEOUT_IN_MS =
2790                "parental_control_timeout_in_ms";
2791
2792        /**
2793         * When parental control is off, we expect to get this string from the
2794         * litmus url.
2795         */
2796        public static final String PARENTAL_CONTROL_EXPECTED_RESPONSE =
2797                "parental_control_expected_response";
2798
2799        /**
2800         * When the litmus url returns a 302, declare parental control to be on
2801         * only if the redirect url matches this regular expression.
2802         */
2803        public static final String PARENTAL_CONTROL_REDIRECT_REGEX =
2804                "parental_control_redirect_regex";
2805
2806        /**
2807         * Threshold for the amount of change in disk free space required to report the amount of
2808         * free space. Used to prevent spamming the logs when the disk free space isn't changing
2809         * frequently.
2810         */
2811        public static final String DISK_FREE_CHANGE_REPORTING_THRESHOLD =
2812                "disk_free_change_reporting_threshold";
2813
2814        /**
2815         * Prefix for new Google services published by the checkin
2816         * server.
2817         */
2818        public static final String GOOGLE_SERVICES_PREFIX
2819                = "google_services:";
2820
2821        /**
2822         * The maximum reconnect delay for short network outages or when the network is suspended
2823         * due to phone use.
2824         */
2825        public static final String SYNC_MAX_RETRY_DELAY_IN_SECONDS =
2826                "sync_max_retry_delay_in_seconds";
2827
2828        /**
2829         * Minimum percentage of free storage on the device that is used to determine if
2830         * the device is running low on storage.
2831         * Say this value is set to 10, the device is considered running low on storage
2832         * if 90% or more of the device storage is filled up.
2833         */
2834        public static final String SYS_STORAGE_THRESHOLD_PERCENTAGE =
2835                "sys_storage_threshold_percentage";
2836
2837        /**
2838         * The interval in minutes after which the amount of free storage left on the
2839         * device is logged to the event log
2840         */
2841        public static final String SYS_FREE_STORAGE_LOG_INTERVAL =
2842                "sys_free_storage_log_interval";
2843
2844        /**
2845         * The interval in milliseconds at which to check the number of SMS sent
2846         * out without asking for use permit, to limit the un-authorized SMS
2847         * usage.
2848         */
2849        public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
2850                "sms_outgoing_check_interval_ms";
2851
2852        /**
2853         * The number of outgoing SMS sent without asking for user permit
2854         * (of {@link #SMS_OUTGOING_CHECK_INTERVAL_MS}
2855         */
2856        public static final String SMS_OUTGOING_CEHCK_MAX_COUNT =
2857                "sms_outgoing_check_max_count";
2858
2859        /**
2860         * The interval in milliseconds at which to check packet counts on the
2861         * mobile data interface when screen is on, to detect possible data
2862         * connection problems.
2863         */
2864        public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
2865                "pdp_watchdog_poll_interval_ms";
2866
2867        /**
2868         * The interval in milliseconds at which to check packet counts on the
2869         * mobile data interface when screen is off, to detect possible data
2870         * connection problems.
2871         */
2872        public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
2873                "pdp_watchdog_long_poll_interval_ms";
2874
2875        /**
2876         * The interval in milliseconds at which to check packet counts on the
2877         * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
2878         * outgoing packets has been reached without incoming packets.
2879         */
2880        public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
2881                "pdp_watchdog_error_poll_interval_ms";
2882
2883        /**
2884         * The number of outgoing packets sent without seeing an incoming packet
2885         * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
2886         * device is logged to the event log
2887         */
2888        public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
2889                "pdp_watchdog_trigger_packet_count";
2890
2891        /**
2892         * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
2893         * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
2894         * attempting data connection recovery.
2895         */
2896        public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
2897                "pdp_watchdog_error_poll_count";
2898
2899        /**
2900         * The number of failed PDP reset attempts before moving to something more
2901         * drastic: re-registering to the network.
2902         */
2903        public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
2904                "pdp_watchdog_max_pdp_reset_fail_count";
2905
2906        /**
2907         * Address to ping as a last sanity check before attempting any recovery.
2908         * Unset or set to "0.0.0.0" to skip this check.
2909         */
2910        public static final String PDP_WATCHDOG_PING_ADDRESS = "pdp_watchdog_ping_address";
2911
2912        /**
2913         * The "-w deadline" parameter for the ping, ie, the max time in
2914         * seconds to spend pinging.
2915         */
2916        public static final String PDP_WATCHDOG_PING_DEADLINE = "pdp_watchdog_ping_deadline";
2917
2918        /**
2919         * The interval in milliseconds at which to check gprs registration
2920         * after the first registration mismatch of gprs and voice service,
2921         * to detect possible data network registration problems.
2922         *
2923         */
2924        public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
2925                "gprs_register_check_period_ms";
2926
2927        /**
2928         * The interval in milliseconds after which Wi-Fi is considered idle.
2929         * When idle, it is possible for the device to be switched from Wi-Fi to
2930         * the mobile data network.
2931         */
2932        public static final String WIFI_IDLE_MS = "wifi_idle_ms";
2933
2934        /**
2935         * Screen timeout in milliseconds corresponding to the
2936         * PowerManager's POKE_LOCK_SHORT_TIMEOUT flag (i.e. the fastest
2937         * possible screen timeout behavior.)
2938         */
2939        public static final String SHORT_KEYLIGHT_DELAY_MS =
2940                "short_keylight_delay_ms";
2941
2942        /**
2943         * URL that points to the voice search servers. To be factored out of this class.
2944         */
2945        public static final String VOICE_SEARCH_URL = "voice_search_url";
2946
2947        /**
2948         * Speech encoding used with voice search on 3G networks. To be factored out of this class.
2949         */
2950        public static final String VOICE_SEARCH_ENCODING_THREE_G = "voice_search_encoding_three_g";
2951
2952        /**
2953         * Speech encoding used with voice search on WIFI networks. To be factored out of this class.
2954         */
2955        public static final String VOICE_SEARCH_ENCODING_WIFI = "voice_search_encoding_wifi";
2956
2957        /**
2958         * Whether to use automatic gain control in voice search (0 = disable, 1 = enable).
2959         * To be factored out of this class.
2960         */
2961        public static final String VOICE_SEARCH_ENABLE_AGC = "voice_search_enable_agc";
2962
2963        /**
2964         * Whether to use noise suppression in voice search (0 = disable, 1 = enable).
2965         * To be factored out of this class.
2966         */
2967        public static final String VOICE_SEARCH_ENABLE_NS = "voice_search_enable_ns";
2968
2969        /**
2970         * Whether to use the IIR filter in voice search (0 = disable, 1 = enable).
2971         * To be factored out of this class.
2972         */
2973        public static final String VOICE_SEARCH_ENABLE_IIR = "voice_search_enable_iir";
2974
2975        /**
2976         * List of test suites (local disk filename) for the automatic instrumentation test runner.
2977         * The file format is similar to automated_suites.xml, see AutoTesterService.
2978         * If this setting is missing or empty, the automatic test runner will not start.
2979         */
2980        public static final String AUTOTEST_SUITES_FILE = "autotest_suites_file";
2981
2982        /**
2983         * Interval between synchronous checkins forced by the automatic test runner.
2984         * If you set this to a value smaller than CHECKIN_INTERVAL, then the test runner's
2985         * frequent checkins will prevent asynchronous background checkins from interfering
2986         * with any performance measurements.
2987         */
2988        public static final String AUTOTEST_CHECKIN_SECONDS = "autotest_checkin_seconds";
2989
2990        /**
2991         * Interval between reboots forced by the automatic test runner.
2992         */
2993        public static final String AUTOTEST_REBOOT_SECONDS = "autotest_reboot_seconds";
2994
2995
2996        /**
2997         * Threshold values for the duration and level of a discharge cycle, under
2998         * which we log discharge cycle info.
2999         */
3000        public static final String BATTERY_DISCHARGE_DURATION_THRESHOLD =
3001                "battery_discharge_duration_threshold";
3002        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
3003
3004        /**
3005         * An email address that anr bugreports should be sent to.
3006         */
3007        public static final String ANR_BUGREPORT_RECIPIENT = "anr_bugreport_recipient";
3008
3009        /**
3010         * @deprecated
3011         * @hide
3012         */
3013        @Deprecated  // Obviated by NameValueCache: just fetch the value directly.
3014        public static class QueryMap extends ContentQueryMap {
3015
3016            public QueryMap(ContentResolver contentResolver, Cursor cursor, boolean keepUpdated,
3017                    Handler handlerForUpdateNotifications) {
3018                super(cursor, NAME, keepUpdated, handlerForUpdateNotifications);
3019            }
3020
3021            public QueryMap(ContentResolver contentResolver, boolean keepUpdated,
3022                    Handler handlerForUpdateNotifications) {
3023                this(contentResolver,
3024                        contentResolver.query(CONTENT_URI, null, null, null, null),
3025                        keepUpdated, handlerForUpdateNotifications);
3026            }
3027
3028            public String getString(String name) {
3029                ContentValues cv = getValues(name);
3030                if (cv == null) return null;
3031                return cv.getAsString(VALUE);
3032            }
3033        }
3034
3035    }
3036
3037    /**
3038     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
3039     * Intent URL, allowing it to be either a web page or a particular
3040     * application activity.
3041     *
3042     * @hide
3043     */
3044    public static final class Bookmarks implements BaseColumns
3045    {
3046        private static final String TAG = "Bookmarks";
3047
3048        /**
3049         * The content:// style URL for this table
3050         */
3051        public static final Uri CONTENT_URI =
3052            Uri.parse("content://" + AUTHORITY + "/bookmarks");
3053
3054        /**
3055         * The row ID.
3056         * <p>Type: INTEGER</p>
3057         */
3058        public static final String ID = "_id";
3059
3060        /**
3061         * Descriptive name of the bookmark that can be displayed to the user.
3062         * If this is empty, the title should be resolved at display time (use
3063         * {@link #getTitle(Context, Cursor)} any time you want to display the
3064         * title of a bookmark.)
3065         * <P>
3066         * Type: TEXT
3067         * </P>
3068         */
3069        public static final String TITLE = "title";
3070
3071        /**
3072         * Arbitrary string (displayed to the user) that allows bookmarks to be
3073         * organized into categories.  There are some special names for
3074         * standard folders, which all start with '@'.  The label displayed for
3075         * the folder changes with the locale (via {@link #getLabelForFolder}) but
3076         * the folder name does not change so you can consistently query for
3077         * the folder regardless of the current locale.
3078         *
3079         * <P>Type: TEXT</P>
3080         *
3081         */
3082        public static final String FOLDER = "folder";
3083
3084        /**
3085         * The Intent URL of the bookmark, describing what it points to.  This
3086         * value is given to {@link android.content.Intent#getIntent} to create
3087         * an Intent that can be launched.
3088         * <P>Type: TEXT</P>
3089         */
3090        public static final String INTENT = "intent";
3091
3092        /**
3093         * Optional shortcut character associated with this bookmark.
3094         * <P>Type: INTEGER</P>
3095         */
3096        public static final String SHORTCUT = "shortcut";
3097
3098        /**
3099         * The order in which the bookmark should be displayed
3100         * <P>Type: INTEGER</P>
3101         */
3102        public static final String ORDERING = "ordering";
3103
3104        private static final String[] sIntentProjection = { INTENT };
3105        private static final String[] sShortcutProjection = { ID, SHORTCUT };
3106        private static final String sShortcutSelection = SHORTCUT + "=?";
3107
3108        /**
3109         * Convenience function to retrieve the bookmarked Intent for a
3110         * particular shortcut key.
3111         *
3112         * @param cr The ContentResolver to query.
3113         * @param shortcut The shortcut key.
3114         *
3115         * @return Intent The bookmarked URL, or null if there is no bookmark
3116         *         matching the given shortcut.
3117         */
3118        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
3119        {
3120            Intent intent = null;
3121
3122            Cursor c = cr.query(CONTENT_URI,
3123                    sIntentProjection, sShortcutSelection,
3124                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
3125            // Keep trying until we find a valid shortcut
3126            try {
3127                while (intent == null && c.moveToNext()) {
3128                    try {
3129                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
3130                        intent = Intent.getIntent(intentURI);
3131                    } catch (java.net.URISyntaxException e) {
3132                        // The stored URL is bad...  ignore it.
3133                    } catch (IllegalArgumentException e) {
3134                        // Column not found
3135                        Log.e(TAG, "Intent column not found", e);
3136                    }
3137                }
3138            } finally {
3139                if (c != null) c.close();
3140            }
3141
3142            return intent;
3143        }
3144
3145        /**
3146         * Add a new bookmark to the system.
3147         *
3148         * @param cr The ContentResolver to query.
3149         * @param intent The desired target of the bookmark.
3150         * @param title Bookmark title that is shown to the user; null if none
3151         *            or it should be resolved to the intent's title.
3152         * @param folder Folder in which to place the bookmark; null if none.
3153         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
3154         *            this is non-zero and there is an existing bookmark entry
3155         *            with this same shortcut, then that existing shortcut is
3156         *            cleared (the bookmark is not removed).
3157         * @return The unique content URL for the new bookmark entry.
3158         */
3159        public static Uri add(ContentResolver cr,
3160                                           Intent intent,
3161                                           String title,
3162                                           String folder,
3163                                           char shortcut,
3164                                           int ordering)
3165        {
3166            // If a shortcut is supplied, and it is already defined for
3167            // another bookmark, then remove the old definition.
3168            if (shortcut != 0) {
3169                Cursor c = cr.query(CONTENT_URI,
3170                        sShortcutProjection, sShortcutSelection,
3171                        new String[] { String.valueOf((int) shortcut) }, null);
3172                try {
3173                    if (c.moveToFirst()) {
3174                        while (c.getCount() > 0) {
3175                            if (!c.deleteRow()) {
3176                                Log.w(TAG, "Could not delete existing shortcut row");
3177                            }
3178                        }
3179                    }
3180                } finally {
3181                    if (c != null) c.close();
3182                }
3183            }
3184
3185            ContentValues values = new ContentValues();
3186            if (title != null) values.put(TITLE, title);
3187            if (folder != null) values.put(FOLDER, folder);
3188            values.put(INTENT, intent.toURI());
3189            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
3190            values.put(ORDERING, ordering);
3191            return cr.insert(CONTENT_URI, values);
3192        }
3193
3194        /**
3195         * Return the folder name as it should be displayed to the user.  This
3196         * takes care of localizing special folders.
3197         *
3198         * @param r Resources object for current locale; only need access to
3199         *          system resources.
3200         * @param folder The value found in the {@link #FOLDER} column.
3201         *
3202         * @return CharSequence The label for this folder that should be shown
3203         *         to the user.
3204         */
3205        public static CharSequence getLabelForFolder(Resources r, String folder) {
3206            return folder;
3207        }
3208
3209        /**
3210         * Return the title as it should be displayed to the user. This takes
3211         * care of localizing bookmarks that point to activities.
3212         *
3213         * @param context A context.
3214         * @param cursor A cursor pointing to the row whose title should be
3215         *        returned. The cursor must contain at least the {@link #TITLE}
3216         *        and {@link #INTENT} columns.
3217         * @return A title that is localized and can be displayed to the user,
3218         *         or the empty string if one could not be found.
3219         */
3220        public static CharSequence getTitle(Context context, Cursor cursor) {
3221            int titleColumn = cursor.getColumnIndex(TITLE);
3222            int intentColumn = cursor.getColumnIndex(INTENT);
3223            if (titleColumn == -1 || intentColumn == -1) {
3224                throw new IllegalArgumentException(
3225                        "The cursor must contain the TITLE and INTENT columns.");
3226            }
3227
3228            String title = cursor.getString(titleColumn);
3229            if (!TextUtils.isEmpty(title)) {
3230                return title;
3231            }
3232
3233            String intentUri = cursor.getString(intentColumn);
3234            if (TextUtils.isEmpty(intentUri)) {
3235                return "";
3236            }
3237
3238            Intent intent;
3239            try {
3240                intent = Intent.getIntent(intentUri);
3241            } catch (URISyntaxException e) {
3242                return "";
3243            }
3244
3245            PackageManager packageManager = context.getPackageManager();
3246            ResolveInfo info = packageManager.resolveActivity(intent, 0);
3247            return info != null ? info.loadLabel(packageManager) : "";
3248        }
3249    }
3250
3251    /**
3252     * Returns the GTalk JID resource associated with this device.
3253     *
3254     * @return  String  the JID resource of the device. It uses the device IMEI in the computation
3255     * of the JID resource. If IMEI is not ready (i.e. telephony module not ready), we'll return
3256     * an empty string.
3257     * @hide
3258     */
3259    // TODO: we shouldn't not have a permenant Jid resource, as that's an easy target for
3260    // spams. We should change it once a while, like when we resubscribe to the subscription feeds
3261    // server.
3262    // (also, should this live in GTalkService?)
3263    public static synchronized String getJidResource() {
3264        if (sJidResource != null) {
3265            return sJidResource;
3266        }
3267
3268        MessageDigest digest;
3269        try {
3270            digest = MessageDigest.getInstance("SHA-1");
3271        } catch (NoSuchAlgorithmException e) {
3272            throw new RuntimeException("this should never happen");
3273        }
3274
3275        String deviceId = TelephonyManager.getDefault().getDeviceId();
3276        if (TextUtils.isEmpty(deviceId)) {
3277            return "";
3278        }
3279
3280        byte[] hashedDeviceId = digest.digest(deviceId.getBytes());
3281        String id = new String(Base64.encodeBase64(hashedDeviceId), 0, 12);
3282        id = id.replaceAll("/", "_");
3283        sJidResource = JID_RESOURCE_PREFIX + id;
3284        return sJidResource;
3285    }
3286
3287    /**
3288     * Returns the device ID that we should use when connecting to the mobile gtalk server.
3289     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
3290     * from the GoogleLoginService.
3291     *
3292     * @param androidId The Android ID for this device.
3293     * @return The device ID that should be used when connecting to the mobile gtalk server.
3294     * @hide
3295     */
3296    public static String getGTalkDeviceId(long androidId) {
3297        return "android-" + Long.toHexString(androidId);
3298    }
3299}
3300