Settings.java revision c03fa5014912684367174ff3cce664deb29f5e0e
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.provider;
18
19import com.google.android.collect.Maps;
20
21import org.apache.commons.codec.binary.Base64;
22
23import android.annotation.SdkConstant;
24import android.annotation.SdkConstant.SdkConstantType;
25import android.content.ComponentName;
26import android.content.ContentQueryMap;
27import android.content.ContentResolver;
28import android.content.ContentValues;
29import android.content.Context;
30import android.content.Intent;
31import android.content.pm.PackageManager;
32import android.content.pm.ResolveInfo;
33import android.content.res.Configuration;
34import android.content.res.Resources;
35import android.database.Cursor;
36import android.database.SQLException;
37import android.net.Uri;
38import android.os.*;
39import android.telephony.TelephonyManager;
40import android.text.TextUtils;
41import android.util.AndroidException;
42import android.util.Config;
43import android.util.Log;
44
45import java.net.URISyntaxException;
46import java.security.MessageDigest;
47import java.security.NoSuchAlgorithmException;
48import java.util.Collections;
49import java.util.HashMap;
50import java.util.HashSet;
51import java.util.Map;
52
53
54/**
55 * The Settings provider contains global system-level device preferences.
56 */
57public final class Settings {
58
59    // Intent actions for Settings
60
61    /**
62     * Activity Action: Show system settings.
63     * <p>
64     * Input: Nothing.
65     * <p>
66     * Output: nothing.
67     */
68    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
69    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
70
71    /**
72     * Activity Action: Show settings to allow configuration of APNs.
73     * <p>
74     * Input: Nothing.
75     * <p>
76     * Output: nothing.
77     */
78    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
79    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
80
81    /**
82     * Activity Action: Show settings to allow configuration of current location
83     * sources.
84     * <p>
85     * In some cases, a matching Activity may not exist, so ensure you
86     * safeguard against this.
87     * <p>
88     * Input: Nothing.
89     * <p>
90     * Output: Nothing.
91     */
92    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
93    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
94            "android.settings.LOCATION_SOURCE_SETTINGS";
95
96    /**
97     * Activity Action: Show settings to allow configuration of wireless controls
98     * such as Wi-Fi, Bluetooth and Mobile networks.
99     * <p>
100     * In some cases, a matching Activity may not exist, so ensure you
101     * safeguard against this.
102     * <p>
103     * Input: Nothing.
104     * <p>
105     * Output: Nothing.
106     */
107    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
108    public static final String ACTION_WIRELESS_SETTINGS =
109            "android.settings.WIRELESS_SETTINGS";
110
111    /**
112     * Activity Action: Show settings to allow entering/exiting airplane mode.
113     * <p>
114     * In some cases, a matching Activity may not exist, so ensure you
115     * safeguard against this.
116     * <p>
117     * Input: Nothing.
118     * <p>
119     * Output: Nothing.
120     */
121    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
122    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
123            "android.settings.AIRPLANE_MODE_SETTINGS";
124
125    /**
126     * Activity Action: Show settings for accessibility modules.
127     * <p>
128     * In some cases, a matching Activity may not exist, so ensure you
129     * safeguard against this.
130     * <p>
131     * Input: Nothing.
132     * <p>
133     * Output: Nothing.
134     */
135    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
136    public static final String ACTION_ACCESSIBILITY_SETTINGS =
137            "android.settings.ACCESSIBILITY_SETTINGS";
138
139    /**
140     * Activity Action: Show settings to allow configuration of security and
141     * location privacy.
142     * <p>
143     * In some cases, a matching Activity may not exist, so ensure you
144     * safeguard against this.
145     * <p>
146     * Input: Nothing.
147     * <p>
148     * Output: Nothing.
149     */
150    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
151    public static final String ACTION_SECURITY_SETTINGS =
152            "android.settings.SECURITY_SETTINGS";
153
154    /**
155     * Activity Action: Show settings to allow configuration of privacy options.
156     * <p>
157     * In some cases, a matching Activity may not exist, so ensure you
158     * safeguard against this.
159     * <p>
160     * Input: Nothing.
161     * <p>
162     * Output: Nothing.
163     */
164    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
165    public static final String ACTION_PRIVACY_SETTINGS =
166            "android.settings.PRIVACY_SETTINGS";
167
168    /**
169     * Activity Action: Show settings to allow configuration of Wi-Fi.
170
171     * <p>
172     * In some cases, a matching Activity may not exist, so ensure you
173     * safeguard against this.
174     * <p>
175     * Input: Nothing.
176     * <p>
177     * Output: Nothing.
178
179     */
180    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
181    public static final String ACTION_WIFI_SETTINGS =
182            "android.settings.WIFI_SETTINGS";
183
184    /**
185     * Activity Action: Show settings to allow configuration of a static IP
186     * address for Wi-Fi.
187     * <p>
188     * In some cases, a matching Activity may not exist, so ensure you safeguard
189     * against this.
190     * <p>
191     * Input: Nothing.
192     * <p>
193     * Output: Nothing.
194     */
195    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
196    public static final String ACTION_WIFI_IP_SETTINGS =
197            "android.settings.WIFI_IP_SETTINGS";
198
199    /**
200     * Activity Action: Show settings to allow configuration of Bluetooth.
201     * <p>
202     * In some cases, a matching Activity may not exist, so ensure you
203     * safeguard against this.
204     * <p>
205     * Input: Nothing.
206     * <p>
207     * Output: Nothing.
208     */
209    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
210    public static final String ACTION_BLUETOOTH_SETTINGS =
211            "android.settings.BLUETOOTH_SETTINGS";
212
213    /**
214     * Activity Action: Show settings to allow configuration of date and time.
215     * <p>
216     * In some cases, a matching Activity may not exist, so ensure you
217     * safeguard against this.
218     * <p>
219     * Input: Nothing.
220     * <p>
221     * Output: Nothing.
222     */
223    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
224    public static final String ACTION_DATE_SETTINGS =
225            "android.settings.DATE_SETTINGS";
226
227    /**
228     * Activity Action: Show settings to allow configuration of sound and volume.
229     * <p>
230     * In some cases, a matching Activity may not exist, so ensure you
231     * safeguard against this.
232     * <p>
233     * Input: Nothing.
234     * <p>
235     * Output: Nothing.
236     */
237    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
238    public static final String ACTION_SOUND_SETTINGS =
239            "android.settings.SOUND_SETTINGS";
240
241    /**
242     * Activity Action: Show settings to allow configuration of display.
243     * <p>
244     * In some cases, a matching Activity may not exist, so ensure you
245     * safeguard against this.
246     * <p>
247     * Input: Nothing.
248     * <p>
249     * Output: Nothing.
250     */
251    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
252    public static final String ACTION_DISPLAY_SETTINGS =
253            "android.settings.DISPLAY_SETTINGS";
254
255    /**
256     * Activity Action: Show settings to allow configuration of locale.
257     * <p>
258     * In some cases, a matching Activity may not exist, so ensure you
259     * safeguard against this.
260     * <p>
261     * Input: Nothing.
262     * <p>
263     * Output: Nothing.
264     */
265    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
266    public static final String ACTION_LOCALE_SETTINGS =
267            "android.settings.LOCALE_SETTINGS";
268
269    /**
270     * Activity Action: Show settings to configure input methods, in particular
271     * allowing the user to enable input methods.
272     * <p>
273     * In some cases, a matching Activity may not exist, so ensure you
274     * safeguard against this.
275     * <p>
276     * Input: Nothing.
277     * <p>
278     * Output: Nothing.
279     */
280    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
281    public static final String ACTION_INPUT_METHOD_SETTINGS =
282            "android.settings.INPUT_METHOD_SETTINGS";
283
284    /**
285     * Activity Action: Show settings to manage the user input dictionary.
286     * <p>
287     * In some cases, a matching Activity may not exist, so ensure you
288     * safeguard against this.
289     * <p>
290     * Input: Nothing.
291     * <p>
292     * Output: Nothing.
293     */
294    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
295    public static final String ACTION_USER_DICTIONARY_SETTINGS =
296            "android.settings.USER_DICTIONARY_SETTINGS";
297
298    /**
299     * Activity Action: Show settings to allow configuration of application-related settings.
300     * <p>
301     * In some cases, a matching Activity may not exist, so ensure you
302     * safeguard against this.
303     * <p>
304     * Input: Nothing.
305     * <p>
306     * Output: Nothing.
307     */
308    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
309    public static final String ACTION_APPLICATION_SETTINGS =
310            "android.settings.APPLICATION_SETTINGS";
311
312    /**
313     * Activity Action: Show settings to allow configuration of application
314     * development-related settings.
315     * <p>
316     * In some cases, a matching Activity may not exist, so ensure you safeguard
317     * against this.
318     * <p>
319     * Input: Nothing.
320     * <p>
321     * Output: Nothing.
322     */
323    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
324    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
325            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
326
327    /**
328     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
329     * <p>
330     * In some cases, a matching Activity may not exist, so ensure you
331     * safeguard against this.
332     * <p>
333     * Input: Nothing.
334     * <p>
335     * Output: Nothing.
336     */
337    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
338    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
339            "android.settings.QUICK_LAUNCH_SETTINGS";
340
341    /**
342     * Activity Action: Show settings to manage installed applications.
343     * <p>
344     * In some cases, a matching Activity may not exist, so ensure you
345     * safeguard against this.
346     * <p>
347     * Input: Nothing.
348     * <p>
349     * Output: Nothing.
350     */
351    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
352    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
353            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
354
355    /**
356     * Activity Action: Show settings for system update functionality.
357     * <p>
358     * In some cases, a matching Activity may not exist, so ensure you
359     * safeguard against this.
360     * <p>
361     * Input: Nothing.
362     * <p>
363     * Output: Nothing.
364     *
365     * @hide
366     */
367    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
368    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
369            "android.settings.SYSTEM_UPDATE_SETTINGS";
370
371    /**
372     * Activity Action: Show settings to allow configuration of sync settings.
373     * <p>
374     * In some cases, a matching Activity may not exist, so ensure you
375     * safeguard against this.
376     * <p>
377     * The account types available to add via the add account button may be restricted by adding an
378     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
379     * authorities. Only account types which can sync with that content provider will be offered to
380     * the user.
381     * <p>
382     * Input: Nothing.
383     * <p>
384     * Output: Nothing.
385     */
386    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
387    public static final String ACTION_SYNC_SETTINGS =
388            "android.settings.SYNC_SETTINGS";
389
390    /**
391     * Activity Action: Show add account screen for creating a new account.
392     * <p>
393     * In some cases, a matching Activity may not exist, so ensure you
394     * safeguard against this.
395     * <p>
396     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
397     * extra to the Intent with one or more syncable content provider's authorities.  Only account
398     * types which can sync with that content provider will be offered to the user.
399     * <p>
400     * Input: Nothing.
401     * <p>
402     * Output: Nothing.
403     */
404    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
405    public static final String ACTION_ADD_ACCOUNT =
406            "android.settings.ADD_ACCOUNT_SETTINGS";
407
408    /**
409     * Activity Action: Show settings for selecting the network operator.
410     * <p>
411     * In some cases, a matching Activity may not exist, so ensure you
412     * safeguard against this.
413     * <p>
414     * Input: Nothing.
415     * <p>
416     * Output: Nothing.
417     */
418    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
419    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
420            "android.settings.NETWORK_OPERATOR_SETTINGS";
421
422    /**
423     * Activity Action: Show settings for selection of 2G/3G.
424     * <p>
425     * In some cases, a matching Activity may not exist, so ensure you
426     * safeguard against this.
427     * <p>
428     * Input: Nothing.
429     * <p>
430     * Output: Nothing.
431     */
432    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
433    public static final String ACTION_DATA_ROAMING_SETTINGS =
434            "android.settings.DATA_ROAMING_SETTINGS";
435
436    /**
437     * Activity Action: Show settings for internal storage.
438     * <p>
439     * In some cases, a matching Activity may not exist, so ensure you
440     * safeguard against this.
441     * <p>
442     * Input: Nothing.
443     * <p>
444     * Output: Nothing.
445     */
446    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
447    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
448            "android.settings.INTERNAL_STORAGE_SETTINGS";
449    /**
450     * Activity Action: Show settings for memory card storage.
451     * <p>
452     * In some cases, a matching Activity may not exist, so ensure you
453     * safeguard against this.
454     * <p>
455     * Input: Nothing.
456     * <p>
457     * Output: Nothing.
458     */
459    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
460    public static final String ACTION_MEMORY_CARD_SETTINGS =
461            "android.settings.MEMORY_CARD_SETTINGS";
462
463    /**
464     * Activity Action: Show settings for global search.
465     * <p>
466     * In some cases, a matching Activity may not exist, so ensure you
467     * safeguard against this.
468     * <p>
469     * Input: Nothing.
470     * <p>
471     * Output: Nothing
472     */
473    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
474    public static final String ACTION_SEARCH_SETTINGS =
475        "android.search.action.SEARCH_SETTINGS";
476
477    /**
478     * Activity Action: Show general device information settings (serial
479     * number, software version, phone number, etc.).
480     * <p>
481     * In some cases, a matching Activity may not exist, so ensure you
482     * safeguard against this.
483     * <p>
484     * Input: Nothing.
485     * <p>
486     * Output: Nothing
487     */
488    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
489    public static final String ACTION_DEVICE_INFO_SETTINGS =
490        "android.settings.DEVICE_INFO_SETTINGS";
491
492    // End of Intent actions for Settings
493
494    /**
495     * Activity Extra: Limit available options in launched activity based on the given authority.
496     * <p>
497     * This can be passed as an extra field in an Activity Intent with one or more syncable content
498     * provider's authorities as a String[]. This field is used by some intents to alter the
499     * behavior of the called activity.
500     * <p>
501     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
502     * on the authority given.
503     */
504    public static final String EXTRA_AUTHORITIES =
505            "authorities";
506
507    private static final String JID_RESOURCE_PREFIX = "android";
508
509    public static final String AUTHORITY = "settings";
510
511    private static final String TAG = "Settings";
512    private static final boolean LOCAL_LOGV = Config.LOGV || false;
513
514    public static class SettingNotFoundException extends AndroidException {
515        public SettingNotFoundException(String msg) {
516            super(msg);
517        }
518    }
519
520    /**
521     * Common base for tables of name/value settings.
522     */
523    public static class NameValueTable implements BaseColumns {
524        public static final String NAME = "name";
525        public static final String VALUE = "value";
526
527        protected static boolean putString(ContentResolver resolver, Uri uri,
528                String name, String value) {
529            // The database will take care of replacing duplicates.
530            try {
531                ContentValues values = new ContentValues();
532                values.put(NAME, name);
533                values.put(VALUE, value);
534                resolver.insert(uri, values);
535                return true;
536            } catch (SQLException e) {
537                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
538                return false;
539            }
540        }
541
542        public static Uri getUriFor(Uri uri, String name) {
543            return Uri.withAppendedPath(uri, name);
544        }
545    }
546
547    private static class NameValueCache {
548        private final String mVersionSystemProperty;
549        private final Uri mUri;
550
551        // Must synchronize(mValues) to access mValues and mValuesVersion.
552        private final HashMap<String, String> mValues = new HashMap<String, String>();
553        private long mValuesVersion = 0;
554
555        public NameValueCache(String versionSystemProperty, Uri uri) {
556            mVersionSystemProperty = versionSystemProperty;
557            mUri = uri;
558        }
559
560        public String getString(ContentResolver cr, String name) {
561            long newValuesVersion = SystemProperties.getLong(mVersionSystemProperty, 0);
562
563            synchronized (mValues) {
564                if (mValuesVersion != newValuesVersion) {
565                    if (LOCAL_LOGV) {
566                        Log.v(TAG, "invalidate [" + mUri.getLastPathSegment() + "]: current " +
567                                newValuesVersion + " != cached " + mValuesVersion);
568                    }
569
570                    mValues.clear();
571                    mValuesVersion = newValuesVersion;
572                }
573
574                if (mValues.containsKey(name)) {
575                    return mValues.get(name);  // Could be null, that's OK -- negative caching
576                }
577            }
578
579            Cursor c = null;
580            try {
581                c = cr.query(mUri, new String[] { Settings.NameValueTable.VALUE },
582                        Settings.NameValueTable.NAME + "=?", new String[]{name}, null);
583                if (c == null) {
584                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
585                    return null;
586                }
587
588                String value = c.moveToNext() ? c.getString(0) : null;
589                synchronized (mValues) {
590                    mValues.put(name, value);
591                }
592                if (LOCAL_LOGV) {
593                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
594                            name + " = " + (value == null ? "(null)" : value));
595                }
596                return value;
597            } catch (SQLException e) {
598                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
599                return null;  // Return null, but don't cache it.
600            } finally {
601                if (c != null) c.close();
602            }
603        }
604    }
605
606    /**
607     * System settings, containing miscellaneous system preferences.  This
608     * table holds simple name/value pairs.  There are convenience
609     * functions for accessing individual settings entries.
610     */
611    public static final class System extends NameValueTable {
612        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_system_version";
613
614        private static volatile NameValueCache mNameValueCache = null;
615
616        private static final HashSet<String> MOVED_TO_SECURE;
617        static {
618            MOVED_TO_SECURE = new HashSet<String>(30);
619            MOVED_TO_SECURE.add(Secure.ADB_ENABLED);
620            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
621            MOVED_TO_SECURE.add(Secure.BLUETOOTH_ON);
622            MOVED_TO_SECURE.add(Secure.DATA_ROAMING);
623            MOVED_TO_SECURE.add(Secure.DEVICE_PROVISIONED);
624            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
625            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
626            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
627            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
628            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
629            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
630            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
631            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
632            MOVED_TO_SECURE.add(Secure.USB_MASS_STORAGE_ENABLED);
633            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
634            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
635            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
636            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
637            MOVED_TO_SECURE.add(Secure.WIFI_ON);
638            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
639            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
640            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
641            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
642            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
643            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
644            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
645            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
646            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
647            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
648            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
649        }
650
651        /**
652         * Look up a name in the database.
653         * @param resolver to access the database with
654         * @param name to look up in the table
655         * @return the corresponding value, or null if not present
656         */
657        public synchronized static String getString(ContentResolver resolver, String name) {
658            if (MOVED_TO_SECURE.contains(name)) {
659                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
660                        + " to android.provider.Settings.Secure, returning read-only value.");
661                return Secure.getString(resolver, name);
662            }
663            if (mNameValueCache == null) {
664                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
665            }
666            return mNameValueCache.getString(resolver, name);
667        }
668
669        /**
670         * Store a name/value pair into the database.
671         * @param resolver to access the database with
672         * @param name to store
673         * @param value to associate with the name
674         * @return true if the value was set, false on database errors
675         */
676        public static boolean putString(ContentResolver resolver, String name, String value) {
677            if (MOVED_TO_SECURE.contains(name)) {
678                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
679                        + " to android.provider.Settings.Secure, value is unchanged.");
680                return false;
681            }
682            return putString(resolver, CONTENT_URI, name, value);
683        }
684
685        /**
686         * Construct the content URI for a particular name/value pair,
687         * useful for monitoring changes with a ContentObserver.
688         * @param name to look up in the table
689         * @return the corresponding content URI, or null if not present
690         */
691        public static Uri getUriFor(String name) {
692            if (MOVED_TO_SECURE.contains(name)) {
693                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
694                    + " to android.provider.Settings.Secure, returning Secure URI.");
695                return Secure.getUriFor(Secure.CONTENT_URI, name);
696            }
697            return getUriFor(CONTENT_URI, name);
698        }
699
700        /**
701         * Convenience function for retrieving a single system settings value
702         * as an integer.  Note that internally setting values are always
703         * stored as strings; this function converts the string to an integer
704         * for you.  The default value will be returned if the setting is
705         * not defined or not an integer.
706         *
707         * @param cr The ContentResolver to access.
708         * @param name The name of the setting to retrieve.
709         * @param def Value to return if the setting is not defined.
710         *
711         * @return The setting's current value, or 'def' if it is not defined
712         * or not a valid integer.
713         */
714        public static int getInt(ContentResolver cr, String name, int def) {
715            String v = getString(cr, name);
716            try {
717                return v != null ? Integer.parseInt(v) : def;
718            } catch (NumberFormatException e) {
719                return def;
720            }
721        }
722
723        /**
724         * Convenience function for retrieving a single system settings value
725         * as an integer.  Note that internally setting values are always
726         * stored as strings; this function converts the string to an integer
727         * for you.
728         * <p>
729         * This version does not take a default value.  If the setting has not
730         * been set, or the string value is not a number,
731         * it throws {@link SettingNotFoundException}.
732         *
733         * @param cr The ContentResolver to access.
734         * @param name The name of the setting to retrieve.
735         *
736         * @throws SettingNotFoundException Thrown if a setting by the given
737         * name can't be found or the setting value is not an integer.
738         *
739         * @return The setting's current value.
740         */
741        public static int getInt(ContentResolver cr, String name)
742                throws SettingNotFoundException {
743            String v = getString(cr, name);
744            try {
745                return Integer.parseInt(v);
746            } catch (NumberFormatException e) {
747                throw new SettingNotFoundException(name);
748            }
749        }
750
751        /**
752         * Convenience function for updating a single settings value as an
753         * integer. This will either create a new entry in the table if the
754         * given name does not exist, or modify the value of the existing row
755         * with that name.  Note that internally setting values are always
756         * stored as strings, so this function converts the given value to a
757         * string before storing it.
758         *
759         * @param cr The ContentResolver to access.
760         * @param name The name of the setting to modify.
761         * @param value The new value for the setting.
762         * @return true if the value was set, false on database errors
763         */
764        public static boolean putInt(ContentResolver cr, String name, int value) {
765            return putString(cr, name, Integer.toString(value));
766        }
767
768        /**
769         * Convenience function for retrieving a single system settings value
770         * as a {@code long}.  Note that internally setting values are always
771         * stored as strings; this function converts the string to a {@code long}
772         * for you.  The default value will be returned if the setting is
773         * not defined or not a {@code long}.
774         *
775         * @param cr The ContentResolver to access.
776         * @param name The name of the setting to retrieve.
777         * @param def Value to return if the setting is not defined.
778         *
779         * @return The setting's current value, or 'def' if it is not defined
780         * or not a valid {@code long}.
781         */
782        public static long getLong(ContentResolver cr, String name, long def) {
783            String valString = getString(cr, name);
784            long value;
785            try {
786                value = valString != null ? Long.parseLong(valString) : def;
787            } catch (NumberFormatException e) {
788                value = def;
789            }
790            return value;
791        }
792
793        /**
794         * Convenience function for retrieving a single system settings value
795         * as a {@code long}.  Note that internally setting values are always
796         * stored as strings; this function converts the string to a {@code long}
797         * for you.
798         * <p>
799         * This version does not take a default value.  If the setting has not
800         * been set, or the string value is not a number,
801         * it throws {@link SettingNotFoundException}.
802         *
803         * @param cr The ContentResolver to access.
804         * @param name The name of the setting to retrieve.
805         *
806         * @return The setting's current value.
807         * @throws SettingNotFoundException Thrown if a setting by the given
808         * name can't be found or the setting value is not an integer.
809         */
810        public static long getLong(ContentResolver cr, String name)
811                throws SettingNotFoundException {
812            String valString = getString(cr, name);
813            try {
814                return Long.parseLong(valString);
815            } catch (NumberFormatException e) {
816                throw new SettingNotFoundException(name);
817            }
818        }
819
820        /**
821         * Convenience function for updating a single settings value as a long
822         * integer. This will either create a new entry in the table if the
823         * given name does not exist, or modify the value of the existing row
824         * with that name.  Note that internally setting values are always
825         * stored as strings, so this function converts the given value to a
826         * string before storing it.
827         *
828         * @param cr The ContentResolver to access.
829         * @param name The name of the setting to modify.
830         * @param value The new value for the setting.
831         * @return true if the value was set, false on database errors
832         */
833        public static boolean putLong(ContentResolver cr, String name, long value) {
834            return putString(cr, name, Long.toString(value));
835        }
836
837        /**
838         * Convenience function for retrieving a single system settings value
839         * as a floating point number.  Note that internally setting values are
840         * always stored as strings; this function converts the string to an
841         * float for you. The default value will be returned if the setting
842         * is not defined or not a valid float.
843         *
844         * @param cr The ContentResolver to access.
845         * @param name The name of the setting to retrieve.
846         * @param def Value to return if the setting is not defined.
847         *
848         * @return The setting's current value, or 'def' if it is not defined
849         * or not a valid float.
850         */
851        public static float getFloat(ContentResolver cr, String name, float def) {
852            String v = getString(cr, name);
853            try {
854                return v != null ? Float.parseFloat(v) : def;
855            } catch (NumberFormatException e) {
856                return def;
857            }
858        }
859
860        /**
861         * Convenience function for retrieving a single system settings value
862         * as a float.  Note that internally setting values are always
863         * stored as strings; this function converts the string to a float
864         * for you.
865         * <p>
866         * This version does not take a default value.  If the setting has not
867         * been set, or the string value is not a number,
868         * it throws {@link SettingNotFoundException}.
869         *
870         * @param cr The ContentResolver to access.
871         * @param name The name of the setting to retrieve.
872         *
873         * @throws SettingNotFoundException Thrown if a setting by the given
874         * name can't be found or the setting value is not a float.
875         *
876         * @return The setting's current value.
877         */
878        public static float getFloat(ContentResolver cr, String name)
879                throws SettingNotFoundException {
880            String v = getString(cr, name);
881            try {
882                return Float.parseFloat(v);
883            } catch (NumberFormatException e) {
884                throw new SettingNotFoundException(name);
885            }
886        }
887
888        /**
889         * Convenience function for updating a single settings value as a
890         * floating point number. This will either create a new entry in the
891         * table if the given name does not exist, or modify the value of the
892         * existing row with that name.  Note that internally setting values
893         * are always stored as strings, so this function converts the given
894         * value to a string before storing it.
895         *
896         * @param cr The ContentResolver to access.
897         * @param name The name of the setting to modify.
898         * @param value The new value for the setting.
899         * @return true if the value was set, false on database errors
900         */
901        public static boolean putFloat(ContentResolver cr, String name, float value) {
902            return putString(cr, name, Float.toString(value));
903        }
904
905        /**
906         * Convenience function to read all of the current
907         * configuration-related settings into a
908         * {@link Configuration} object.
909         *
910         * @param cr The ContentResolver to access.
911         * @param outConfig Where to place the configuration settings.
912         */
913        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
914            outConfig.fontScale = Settings.System.getFloat(
915                cr, FONT_SCALE, outConfig.fontScale);
916            if (outConfig.fontScale < 0) {
917                outConfig.fontScale = 1;
918            }
919        }
920
921        /**
922         * Convenience function to write a batch of configuration-related
923         * settings from a {@link Configuration} object.
924         *
925         * @param cr The ContentResolver to access.
926         * @param config The settings to write.
927         * @return true if the values were set, false on database errors
928         */
929        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
930            return Settings.System.putFloat(cr, FONT_SCALE, config.fontScale);
931        }
932
933        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
934            return getInt(cr, SHOW_GTALK_SERVICE_STATUS, 0) != 0;
935        }
936
937        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
938            putInt(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0);
939        }
940
941        /**
942         * The content:// style URL for this table
943         */
944        public static final Uri CONTENT_URI =
945            Uri.parse("content://" + AUTHORITY + "/system");
946
947        /**
948         * Whether we keep the device on while the device is plugged in.
949         * Supported values are:
950         * <ul>
951         * <li>{@code 0} to never stay on while plugged in</li>
952         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
953         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
954         * </ul>
955         * These values can be OR-ed together.
956         */
957        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
958
959        /**
960         * What happens when the user presses the end call button if they're not
961         * on a call.<br/>
962         * <b>Values:</b><br/>
963         * 0 - The end button does nothing.<br/>
964         * 1 - The end button goes to the home screen.<br/>
965         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
966         * 3 - The end button goes to the home screen.  If the user is already on the
967         * home screen, it puts the device to sleep.
968         */
969        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
970
971        /**
972         * Whether Airplane Mode is on.
973         */
974        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
975
976        /**
977         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
978         */
979        public static final String RADIO_BLUETOOTH = "bluetooth";
980
981        /**
982         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
983         */
984        public static final String RADIO_WIFI = "wifi";
985
986        /**
987         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
988         */
989        public static final String RADIO_CELL = "cell";
990
991        /**
992         * A comma separated list of radios that need to be disabled when airplane mode
993         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
994         * included in the comma separated list.
995         */
996        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
997
998        /**
999         * A comma separated list of radios that should to be disabled when airplane mode
1000         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
1001         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
1002         * will be turned off when entering airplane mode, but the user will be able to reenable
1003         * Wifi in the Settings app.
1004         *
1005         * {@hide}
1006         */
1007        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
1008
1009        /**
1010         * The policy for deciding when Wi-Fi should go to sleep (which will in
1011         * turn switch to using the mobile data as an Internet connection).
1012         * <p>
1013         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
1014         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
1015         * {@link #WIFI_SLEEP_POLICY_NEVER}.
1016         */
1017        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
1018
1019        /**
1020         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
1021         * policy, which is to sleep shortly after the turning off
1022         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
1023         */
1024        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
1025
1026        /**
1027         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
1028         * the device is on battery, and never go to sleep when the device is
1029         * plugged in.
1030         */
1031        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
1032
1033        /**
1034         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
1035         */
1036        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
1037
1038        /**
1039         * Whether to use static IP and other static network attributes.
1040         * <p>
1041         * Set to 1 for true and 0 for false.
1042         */
1043        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
1044
1045        /**
1046         * The static IP address.
1047         * <p>
1048         * Example: "192.168.1.51"
1049         */
1050        public static final String WIFI_STATIC_IP = "wifi_static_ip";
1051
1052        /**
1053         * If using static IP, the gateway's IP address.
1054         * <p>
1055         * Example: "192.168.1.1"
1056         */
1057        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
1058
1059        /**
1060         * If using static IP, the net mask.
1061         * <p>
1062         * Example: "255.255.255.0"
1063         */
1064        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
1065
1066        /**
1067         * If using static IP, the primary DNS's IP address.
1068         * <p>
1069         * Example: "192.168.1.1"
1070         */
1071        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
1072
1073        /**
1074         * If using static IP, the secondary DNS's IP address.
1075         * <p>
1076         * Example: "192.168.1.2"
1077         */
1078        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
1079
1080        /**
1081         * The number of radio channels that are allowed in the local
1082         * 802.11 regulatory domain.
1083         * @hide
1084         */
1085        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
1086
1087        /**
1088         * Determines whether remote devices may discover and/or connect to
1089         * this device.
1090         * <P>Type: INT</P>
1091         * 2 -- discoverable and connectable
1092         * 1 -- connectable but not discoverable
1093         * 0 -- neither connectable nor discoverable
1094         */
1095        public static final String BLUETOOTH_DISCOVERABILITY =
1096            "bluetooth_discoverability";
1097
1098        /**
1099         * Bluetooth discoverability timeout.  If this value is nonzero, then
1100         * Bluetooth becomes discoverable for a certain number of seconds,
1101         * after which is becomes simply connectable.  The value is in seconds.
1102         */
1103        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
1104            "bluetooth_discoverability_timeout";
1105
1106        /**
1107         * Whether autolock is enabled (0 = false, 1 = true)
1108         */
1109        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
1110
1111        /**
1112         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
1113         */
1114        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
1115
1116        /**
1117         * Whether lock pattern will vibrate as user enters (0 = false, 1 = true)
1118         */
1119        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
1120            "lock_pattern_tactile_feedback_enabled";
1121
1122
1123        /**
1124         * A formatted string of the next alarm that is set, or the empty string
1125         * if there is no alarm set.
1126         */
1127        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
1128
1129        /**
1130         * Scaling factor for fonts, float.
1131         */
1132        public static final String FONT_SCALE = "font_scale";
1133
1134        /**
1135         * Name of an application package to be debugged.
1136         */
1137        public static final String DEBUG_APP = "debug_app";
1138
1139        /**
1140         * If 1, when launching DEBUG_APP it will wait for the debugger before
1141         * starting user code.  If 0, it will run normally.
1142         */
1143        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
1144
1145        /**
1146         * Whether or not to dim the screen. 0=no  1=yes
1147         */
1148        public static final String DIM_SCREEN = "dim_screen";
1149
1150        /**
1151         * The timeout before the screen turns off.
1152         */
1153        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
1154
1155        /**
1156         * If 0, the compatibility mode is off for all applications.
1157         * If 1, older applications run under compatibility mode.
1158         * TODO: remove this settings before code freeze (bug/1907571)
1159         * @hide
1160         */
1161        public static final String COMPATIBILITY_MODE = "compatibility_mode";
1162
1163        /**
1164         * The screen backlight brightness between 0 and 255.
1165         */
1166        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
1167
1168        /**
1169         * Control whether to enable automatic brightness mode.
1170         */
1171        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
1172
1173        /**
1174         * SCREEN_BRIGHTNESS_MODE value for manual mode.
1175         */
1176        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
1177
1178        /**
1179         * SCREEN_BRIGHTNESS_MODE value for manual mode.
1180         */
1181        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
1182
1183        /**
1184         * Control whether the process CPU usage meter should be shown.
1185         */
1186        public static final String SHOW_PROCESSES = "show_processes";
1187
1188        /**
1189         * If 1, the activity manager will aggressively finish activities and
1190         * processes as soon as they are no longer needed.  If 0, the normal
1191         * extended lifetime is used.
1192         */
1193        public static final String ALWAYS_FINISH_ACTIVITIES =
1194                "always_finish_activities";
1195
1196
1197        /**
1198         * Ringer mode. This is used internally, changing this value will not
1199         * change the ringer mode. See AudioManager.
1200         */
1201        public static final String MODE_RINGER = "mode_ringer";
1202
1203        /**
1204         * Determines which streams are affected by ringer mode changes. The
1205         * stream type's bit should be set to 1 if it should be muted when going
1206         * into an inaudible ringer mode.
1207         */
1208        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
1209
1210         /**
1211          * Determines which streams are affected by mute. The
1212          * stream type's bit should be set to 1 if it should be muted when a mute request
1213          * is received.
1214          */
1215         public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
1216
1217        /**
1218         * Whether vibrate is on for different events. This is used internally,
1219         * changing this value will not change the vibrate. See AudioManager.
1220         */
1221        public static final String VIBRATE_ON = "vibrate_on";
1222
1223        /**
1224         * Ringer volume. This is used internally, changing this value will not
1225         * change the volume. See AudioManager.
1226         */
1227        public static final String VOLUME_RING = "volume_ring";
1228
1229        /**
1230         * System/notifications volume. This is used internally, changing this
1231         * value will not change the volume. See AudioManager.
1232         */
1233        public static final String VOLUME_SYSTEM = "volume_system";
1234
1235        /**
1236         * Voice call volume. This is used internally, changing this value will
1237         * not change the volume. See AudioManager.
1238         */
1239        public static final String VOLUME_VOICE = "volume_voice";
1240
1241        /**
1242         * Music/media/gaming volume. This is used internally, changing this
1243         * value will not change the volume. See AudioManager.
1244         */
1245        public static final String VOLUME_MUSIC = "volume_music";
1246
1247        /**
1248         * Alarm volume. This is used internally, changing this
1249         * value will not change the volume. See AudioManager.
1250         */
1251        public static final String VOLUME_ALARM = "volume_alarm";
1252
1253        /**
1254         * Notification volume. This is used internally, changing this
1255         * value will not change the volume. See AudioManager.
1256         */
1257        public static final String VOLUME_NOTIFICATION = "volume_notification";
1258
1259        /**
1260         * Bluetooth Headset volume. This is used internally, changing this value will
1261         * not change the volume. See AudioManager.
1262         */
1263        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
1264
1265        /**
1266         * Whether the notifications should use the ring volume (value of 1) or
1267         * a separate notification volume (value of 0). In most cases, users
1268         * will have this enabled so the notification and ringer volumes will be
1269         * the same. However, power users can disable this and use the separate
1270         * notification volume control.
1271         * <p>
1272         * Note: This is a one-off setting that will be removed in the future
1273         * when there is profile support. For this reason, it is kept hidden
1274         * from the public APIs.
1275         *
1276         * @hide
1277         */
1278        public static final String NOTIFICATIONS_USE_RING_VOLUME =
1279            "notifications_use_ring_volume";
1280
1281        /**
1282         * The mapping of stream type (integer) to its setting.
1283         */
1284        public static final String[] VOLUME_SETTINGS = {
1285            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
1286            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
1287        };
1288
1289        /**
1290         * Appended to various volume related settings to record the previous
1291         * values before they the settings were affected by a silent/vibrate
1292         * ringer mode change.
1293         */
1294        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
1295
1296        /**
1297         * Persistent store for the system-wide default ringtone URI.
1298         * <p>
1299         * If you need to play the default ringtone at any given time, it is recommended
1300         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
1301         * to the set default ringtone at the time of playing.
1302         *
1303         * @see #DEFAULT_RINGTONE_URI
1304         */
1305        public static final String RINGTONE = "ringtone";
1306
1307        /**
1308         * A {@link Uri} that will point to the current default ringtone at any
1309         * given time.
1310         * <p>
1311         * If the current default ringtone is in the DRM provider and the caller
1312         * does not have permission, the exception will be a
1313         * FileNotFoundException.
1314         */
1315        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
1316
1317        /**
1318         * Persistent store for the system-wide default notification sound.
1319         *
1320         * @see #RINGTONE
1321         * @see #DEFAULT_NOTIFICATION_URI
1322         */
1323        public static final String NOTIFICATION_SOUND = "notification_sound";
1324
1325        /**
1326         * A {@link Uri} that will point to the current default notification
1327         * sound at any given time.
1328         *
1329         * @see #DEFAULT_RINGTONE_URI
1330         */
1331        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
1332
1333        /**
1334         * Persistent store for the system-wide default alarm alert.
1335         *
1336         * @see #RINGTONE
1337         * @see #DEFAULT_ALARM_ALERT_URI
1338         */
1339        public static final String ALARM_ALERT = "alarm_alert";
1340
1341        /**
1342         * A {@link Uri} that will point to the current default alarm alert at
1343         * any given time.
1344         *
1345         * @see #DEFAULT_ALARM_ALERT_URI
1346         */
1347        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
1348
1349        /**
1350         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
1351         */
1352        public static final String TEXT_AUTO_REPLACE = "auto_replace";
1353
1354        /**
1355         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
1356         */
1357        public static final String TEXT_AUTO_CAPS = "auto_caps";
1358
1359        /**
1360         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
1361         * feature converts two spaces to a "." and space.
1362         */
1363        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
1364
1365        /**
1366         * Setting to showing password characters in text editors. 1 = On, 0 = Off
1367         */
1368        public static final String TEXT_SHOW_PASSWORD = "show_password";
1369
1370        public static final String SHOW_GTALK_SERVICE_STATUS =
1371                "SHOW_GTALK_SERVICE_STATUS";
1372
1373        /**
1374         * Name of activity to use for wallpaper on the home screen.
1375         */
1376        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
1377
1378        /**
1379         * Value to specify if the user prefers the date, time and time zone
1380         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
1381         */
1382        public static final String AUTO_TIME = "auto_time";
1383
1384        /**
1385         * Display times as 12 or 24 hours
1386         *   12
1387         *   24
1388         */
1389        public static final String TIME_12_24 = "time_12_24";
1390
1391        /**
1392         * Date format string
1393         *   mm/dd/yyyy
1394         *   dd/mm/yyyy
1395         *   yyyy/mm/dd
1396         */
1397        public static final String DATE_FORMAT = "date_format";
1398
1399        /**
1400         * Whether the setup wizard has been run before (on first boot), or if
1401         * it still needs to be run.
1402         *
1403         * nonzero = it has been run in the past
1404         * 0 = it has not been run in the past
1405         */
1406        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
1407
1408        /**
1409         * Scaling factor for normal window animations. Setting to 0 will disable window
1410         * animations.
1411         */
1412        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
1413
1414        /**
1415         * Scaling factor for activity transition animations. Setting to 0 will disable window
1416         * animations.
1417         */
1418        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
1419
1420        /**
1421         * Scaling factor for normal window animations. Setting to 0 will disable window
1422         * animations.
1423         * @hide
1424         */
1425        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
1426
1427        /**
1428         * Control whether the accelerometer will be used to change screen
1429         * orientation.  If 0, it will not be used unless explicitly requested
1430         * by the application; if 1, it will be used by default unless explicitly
1431         * disabled by the application.
1432         */
1433        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
1434
1435        /**
1436         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
1437         * boolean (1 or 0).
1438         */
1439        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
1440
1441        /**
1442         * CDMA only settings
1443         * DTMF tone type played by the dialer when dialing.
1444         *                 0 = Normal
1445         *                 1 = Long
1446         * @hide
1447         */
1448        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
1449
1450        /**
1451         * CDMA only settings
1452         * Emergency Tone  0 = Off
1453         *                 1 = Alert
1454         *                 2 = Vibrate
1455         * @hide
1456         */
1457        public static final String EMERGENCY_TONE = "emergency_tone";
1458
1459        /**
1460         * CDMA only settings
1461         * Whether the auto retry is enabled. The value is
1462         * boolean (1 or 0).
1463         * @hide
1464         */
1465        public static final String CALL_AUTO_RETRY = "call_auto_retry";
1466
1467        /**
1468         * Whether the hearing aid is enabled. The value is
1469         * boolean (1 or 0).
1470         * @hide
1471         */
1472        public static final String HEARING_AID = "hearing_aid";
1473
1474        /**
1475         * CDMA only settings
1476         * TTY Mode
1477         * 0 = OFF
1478         * 1 = FULL
1479         * 2 = VCO
1480         * 3 = HCO
1481         * @hide
1482         */
1483        public static final String TTY_MODE = "tty_mode";
1484
1485        /**
1486         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
1487         * boolean (1 or 0).
1488         */
1489        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
1490
1491        /**
1492         * Whether the haptic feedback (long presses, ...) are enabled. The value is
1493         * boolean (1 or 0).
1494         */
1495        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
1496
1497        /**
1498         * Whether live web suggestions while the user types into search dialogs are
1499         * enabled. Browsers and other search UIs should respect this, as it allows
1500         * a user to avoid sending partial queries to a search engine, if it poses
1501         * any privacy concern. The value is boolean (1 or 0).
1502         */
1503        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
1504
1505        /**
1506         * Whether the notification LED should repeatedly flash when a notification is
1507         * pending. The value is boolean (1 or 0).
1508         * @hide
1509         */
1510        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
1511
1512        /**
1513         * Let user pick default install location.
1514         * @hide
1515         */
1516        public static final String SET_INSTALL_LOCATION = "set_install_location";
1517
1518        /**
1519         * Default install location value.
1520         * 0 = auto, let system decide
1521         * 1 = internal
1522         * 2 = sdcard
1523         * @hide
1524         */
1525        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
1526
1527        /**
1528         * Show pointer location on screen?
1529         * 0 = no
1530         * 1 = yes
1531         * @hide
1532         */
1533        public static final String POINTER_LOCATION = "pointer_location";
1534
1535        /**
1536         * Whether to play a sound for low-battery alerts.
1537         * @hide
1538         */
1539        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
1540
1541        /**
1542         * Whether to play a sound for dock events.
1543         * @hide
1544         */
1545        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
1546
1547        /**
1548         * Whether to play sounds when the keyguard is shown and dismissed.
1549         * @hide
1550         */
1551        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
1552
1553        /**
1554         * URI for the low battery sound file.
1555         * @hide
1556         */
1557        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
1558
1559        /**
1560         * URI for the desk dock "in" event sound.
1561         * @hide
1562         */
1563        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
1564
1565        /**
1566         * URI for the desk dock "out" event sound.
1567         * @hide
1568         */
1569        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
1570
1571        /**
1572         * URI for the car dock "in" event sound.
1573         * @hide
1574         */
1575        public static final String CAR_DOCK_SOUND = "car_dock_sound";
1576
1577        /**
1578         * URI for the car dock "out" event sound.
1579         * @hide
1580         */
1581        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
1582
1583        /**
1584         * URI for the "device locked" (keyguard shown) sound.
1585         * @hide
1586         */
1587        public static final String LOCK_SOUND = "lock_sound";
1588
1589        /**
1590         * URI for the "device unlocked" (keyguard dismissed) sound.
1591         * @hide
1592         */
1593        public static final String UNLOCK_SOUND = "unlock_sound";
1594
1595        /**
1596         * Settings to backup. This is here so that it's in the same place as the settings
1597         * keys and easy to update.
1598         * @hide
1599         */
1600        public static final String[] SETTINGS_TO_BACKUP = {
1601            STAY_ON_WHILE_PLUGGED_IN,
1602            WIFI_SLEEP_POLICY,
1603            WIFI_USE_STATIC_IP,
1604            WIFI_STATIC_IP,
1605            WIFI_STATIC_GATEWAY,
1606            WIFI_STATIC_NETMASK,
1607            WIFI_STATIC_DNS1,
1608            WIFI_STATIC_DNS2,
1609            BLUETOOTH_DISCOVERABILITY,
1610            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
1611            DIM_SCREEN,
1612            SCREEN_OFF_TIMEOUT,
1613            SCREEN_BRIGHTNESS,
1614            SCREEN_BRIGHTNESS_MODE,
1615            VIBRATE_ON,
1616            NOTIFICATIONS_USE_RING_VOLUME,
1617            MODE_RINGER,
1618            MODE_RINGER_STREAMS_AFFECTED,
1619            MUTE_STREAMS_AFFECTED,
1620            VOLUME_VOICE,
1621            VOLUME_SYSTEM,
1622            VOLUME_RING,
1623            VOLUME_MUSIC,
1624            VOLUME_ALARM,
1625            VOLUME_NOTIFICATION,
1626            VOLUME_BLUETOOTH_SCO,
1627            VOLUME_VOICE + APPEND_FOR_LAST_AUDIBLE,
1628            VOLUME_SYSTEM + APPEND_FOR_LAST_AUDIBLE,
1629            VOLUME_RING + APPEND_FOR_LAST_AUDIBLE,
1630            VOLUME_MUSIC + APPEND_FOR_LAST_AUDIBLE,
1631            VOLUME_ALARM + APPEND_FOR_LAST_AUDIBLE,
1632            VOLUME_NOTIFICATION + APPEND_FOR_LAST_AUDIBLE,
1633            VOLUME_BLUETOOTH_SCO + APPEND_FOR_LAST_AUDIBLE,
1634            TEXT_AUTO_REPLACE,
1635            TEXT_AUTO_CAPS,
1636            TEXT_AUTO_PUNCTUATE,
1637            TEXT_SHOW_PASSWORD,
1638            AUTO_TIME,
1639            TIME_12_24,
1640            DATE_FORMAT,
1641            ACCELEROMETER_ROTATION,
1642            DTMF_TONE_WHEN_DIALING,
1643            DTMF_TONE_TYPE_WHEN_DIALING,
1644            EMERGENCY_TONE,
1645            CALL_AUTO_RETRY,
1646            HEARING_AID,
1647            TTY_MODE,
1648            SOUND_EFFECTS_ENABLED,
1649            HAPTIC_FEEDBACK_ENABLED,
1650            SHOW_WEB_SUGGESTIONS,
1651            NOTIFICATION_LIGHT_PULSE
1652        };
1653
1654        // Settings moved to Settings.Secure
1655
1656        /**
1657         * @deprecated Use {@link android.provider.Settings.Secure#ADB_ENABLED}
1658         * instead
1659         */
1660        @Deprecated
1661        public static final String ADB_ENABLED = Secure.ADB_ENABLED;
1662
1663        /**
1664         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
1665         */
1666        @Deprecated
1667        public static final String ANDROID_ID = Secure.ANDROID_ID;
1668
1669        /**
1670         * @deprecated Use {@link android.provider.Settings.Secure#BLUETOOTH_ON} instead
1671         */
1672        @Deprecated
1673        public static final String BLUETOOTH_ON = Secure.BLUETOOTH_ON;
1674
1675        /**
1676         * @deprecated Use {@link android.provider.Settings.Secure#DATA_ROAMING} instead
1677         */
1678        @Deprecated
1679        public static final String DATA_ROAMING = Secure.DATA_ROAMING;
1680
1681        /**
1682         * @deprecated Use {@link android.provider.Settings.Secure#DEVICE_PROVISIONED} instead
1683         */
1684        @Deprecated
1685        public static final String DEVICE_PROVISIONED = Secure.DEVICE_PROVISIONED;
1686
1687        /**
1688         * @deprecated Use {@link android.provider.Settings.Secure#HTTP_PROXY} instead
1689         */
1690        @Deprecated
1691        public static final String HTTP_PROXY = Secure.HTTP_PROXY;
1692
1693        /**
1694         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
1695         */
1696        @Deprecated
1697        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
1698
1699        /**
1700         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
1701         * instead
1702         */
1703        @Deprecated
1704        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
1705
1706        /**
1707         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
1708         */
1709        @Deprecated
1710        public static final String LOGGING_ID = Secure.LOGGING_ID;
1711
1712        /**
1713         * @deprecated Use {@link android.provider.Settings.Secure#NETWORK_PREFERENCE} instead
1714         */
1715        @Deprecated
1716        public static final String NETWORK_PREFERENCE = Secure.NETWORK_PREFERENCE;
1717
1718        /**
1719         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
1720         * instead
1721         */
1722        @Deprecated
1723        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
1724
1725        /**
1726         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
1727         * instead
1728         */
1729        @Deprecated
1730        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
1731
1732        /**
1733         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
1734         * instead
1735         */
1736        @Deprecated
1737        public static final String PARENTAL_CONTROL_REDIRECT_URL =
1738            Secure.PARENTAL_CONTROL_REDIRECT_URL;
1739
1740        /**
1741         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
1742         */
1743        @Deprecated
1744        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
1745
1746        /**
1747         * @deprecated Use {@link android.provider.Settings.Secure#USB_MASS_STORAGE_ENABLED} instead
1748         */
1749        @Deprecated
1750        public static final String USB_MASS_STORAGE_ENABLED = Secure.USB_MASS_STORAGE_ENABLED;
1751
1752        /**
1753         * @deprecated Use {@link android.provider.Settings.Secure#USE_GOOGLE_MAIL} instead
1754         */
1755        @Deprecated
1756        public static final String USE_GOOGLE_MAIL = Secure.USE_GOOGLE_MAIL;
1757
1758       /**
1759         * @deprecated Use
1760         * {@link android.provider.Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT} instead
1761         */
1762        @Deprecated
1763        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Secure.WIFI_MAX_DHCP_RETRY_COUNT;
1764
1765        /**
1766         * @deprecated Use
1767         * {@link android.provider.Settings.Secure#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
1768         */
1769        @Deprecated
1770        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
1771                Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
1772
1773        /**
1774         * @deprecated Use
1775         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
1776         */
1777        @Deprecated
1778        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1779            Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
1780
1781        /**
1782         * @deprecated Use
1783         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
1784         */
1785        @Deprecated
1786        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1787            Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
1788
1789        /**
1790         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_NUM_OPEN_NETWORKS_KEPT}
1791         * instead
1792         */
1793        @Deprecated
1794        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Secure.WIFI_NUM_OPEN_NETWORKS_KEPT;
1795
1796        /**
1797         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_ON} instead
1798         */
1799        @Deprecated
1800        public static final String WIFI_ON = Secure.WIFI_ON;
1801
1802        /**
1803         * @deprecated Use
1804         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
1805         * instead
1806         */
1807        @Deprecated
1808        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
1809                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
1810
1811        /**
1812         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
1813         */
1814        @Deprecated
1815        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
1816
1817        /**
1818         * @deprecated Use
1819         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
1820         */
1821        @Deprecated
1822        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
1823                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
1824
1825        /**
1826         * @deprecated Use
1827         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
1828         */
1829        @Deprecated
1830        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
1831                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
1832
1833        /**
1834         * @deprecated Use
1835         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
1836         * instead
1837         */
1838        @Deprecated
1839        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
1840                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
1841
1842        /**
1843         * @deprecated Use
1844         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
1845         */
1846        @Deprecated
1847        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
1848            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
1849
1850        /**
1851         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
1852         * instead
1853         */
1854        @Deprecated
1855        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
1856
1857        /**
1858         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ON} instead
1859         */
1860        @Deprecated
1861        public static final String WIFI_WATCHDOG_ON = Secure.WIFI_WATCHDOG_ON;
1862
1863        /**
1864         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
1865         */
1866        @Deprecated
1867        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
1868
1869        /**
1870         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
1871         * instead
1872         */
1873        @Deprecated
1874        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
1875
1876        /**
1877         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
1878         * instead
1879         */
1880        @Deprecated
1881        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
1882            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
1883    }
1884
1885    /**
1886     * Secure system settings, containing system preferences that applications
1887     * can read but are not allowed to write.  These are for preferences that
1888     * the user must explicitly modify through the system UI or specialized
1889     * APIs for those values, not modified directly by applications.
1890     */
1891    public static final class Secure extends NameValueTable {
1892        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_secure_version";
1893
1894        private static volatile NameValueCache mNameValueCache = null;
1895
1896        /**
1897         * Look up a name in the database.
1898         * @param resolver to access the database with
1899         * @param name to look up in the table
1900         * @return the corresponding value, or null if not present
1901         */
1902        public synchronized static String getString(ContentResolver resolver, String name) {
1903            if (mNameValueCache == null) {
1904                mNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI);
1905            }
1906            return mNameValueCache.getString(resolver, name);
1907        }
1908
1909        /**
1910         * Store a name/value pair into the database.
1911         * @param resolver to access the database with
1912         * @param name to store
1913         * @param value to associate with the name
1914         * @return true if the value was set, false on database errors
1915         */
1916        public static boolean putString(ContentResolver resolver,
1917                String name, String value) {
1918            return putString(resolver, CONTENT_URI, name, value);
1919        }
1920
1921        /**
1922         * Construct the content URI for a particular name/value pair,
1923         * useful for monitoring changes with a ContentObserver.
1924         * @param name to look up in the table
1925         * @return the corresponding content URI, or null if not present
1926         */
1927        public static Uri getUriFor(String name) {
1928            return getUriFor(CONTENT_URI, name);
1929        }
1930
1931        /**
1932         * Convenience function for retrieving a single secure settings value
1933         * as an integer.  Note that internally setting values are always
1934         * stored as strings; this function converts the string to an integer
1935         * for you.  The default value will be returned if the setting is
1936         * not defined or not an integer.
1937         *
1938         * @param cr The ContentResolver to access.
1939         * @param name The name of the setting to retrieve.
1940         * @param def Value to return if the setting is not defined.
1941         *
1942         * @return The setting's current value, or 'def' if it is not defined
1943         * or not a valid integer.
1944         */
1945        public static int getInt(ContentResolver cr, String name, int def) {
1946            String v = getString(cr, name);
1947            try {
1948                return v != null ? Integer.parseInt(v) : def;
1949            } catch (NumberFormatException e) {
1950                return def;
1951            }
1952        }
1953
1954        /**
1955         * Convenience function for retrieving a single secure settings value
1956         * as an integer.  Note that internally setting values are always
1957         * stored as strings; this function converts the string to an integer
1958         * for you.
1959         * <p>
1960         * This version does not take a default value.  If the setting has not
1961         * been set, or the string value is not a number,
1962         * it throws {@link SettingNotFoundException}.
1963         *
1964         * @param cr The ContentResolver to access.
1965         * @param name The name of the setting to retrieve.
1966         *
1967         * @throws SettingNotFoundException Thrown if a setting by the given
1968         * name can't be found or the setting value is not an integer.
1969         *
1970         * @return The setting's current value.
1971         */
1972        public static int getInt(ContentResolver cr, String name)
1973                throws SettingNotFoundException {
1974            String v = getString(cr, name);
1975            try {
1976                return Integer.parseInt(v);
1977            } catch (NumberFormatException e) {
1978                throw new SettingNotFoundException(name);
1979            }
1980        }
1981
1982        /**
1983         * Convenience function for updating a single settings value as an
1984         * integer. This will either create a new entry in the table if the
1985         * given name does not exist, or modify the value of the existing row
1986         * with that name.  Note that internally setting values are always
1987         * stored as strings, so this function converts the given value to a
1988         * string before storing it.
1989         *
1990         * @param cr The ContentResolver to access.
1991         * @param name The name of the setting to modify.
1992         * @param value The new value for the setting.
1993         * @return true if the value was set, false on database errors
1994         */
1995        public static boolean putInt(ContentResolver cr, String name, int value) {
1996            return putString(cr, name, Integer.toString(value));
1997        }
1998
1999        /**
2000         * Convenience function for retrieving a single secure settings value
2001         * as a {@code long}.  Note that internally setting values are always
2002         * stored as strings; this function converts the string to a {@code long}
2003         * for you.  The default value will be returned if the setting is
2004         * not defined or not a {@code long}.
2005         *
2006         * @param cr The ContentResolver to access.
2007         * @param name The name of the setting to retrieve.
2008         * @param def Value to return if the setting is not defined.
2009         *
2010         * @return The setting's current value, or 'def' if it is not defined
2011         * or not a valid {@code long}.
2012         */
2013        public static long getLong(ContentResolver cr, String name, long def) {
2014            String valString = getString(cr, name);
2015            long value;
2016            try {
2017                value = valString != null ? Long.parseLong(valString) : def;
2018            } catch (NumberFormatException e) {
2019                value = def;
2020            }
2021            return value;
2022        }
2023
2024        /**
2025         * Convenience function for retrieving a single secure settings value
2026         * as a {@code long}.  Note that internally setting values are always
2027         * stored as strings; this function converts the string to a {@code long}
2028         * for you.
2029         * <p>
2030         * This version does not take a default value.  If the setting has not
2031         * been set, or the string value is not a number,
2032         * it throws {@link SettingNotFoundException}.
2033         *
2034         * @param cr The ContentResolver to access.
2035         * @param name The name of the setting to retrieve.
2036         *
2037         * @return The setting's current value.
2038         * @throws SettingNotFoundException Thrown if a setting by the given
2039         * name can't be found or the setting value is not an integer.
2040         */
2041        public static long getLong(ContentResolver cr, String name)
2042                throws SettingNotFoundException {
2043            String valString = getString(cr, name);
2044            try {
2045                return Long.parseLong(valString);
2046            } catch (NumberFormatException e) {
2047                throw new SettingNotFoundException(name);
2048            }
2049        }
2050
2051        /**
2052         * Convenience function for updating a secure settings value as a long
2053         * integer. This will either create a new entry in the table if the
2054         * given name does not exist, or modify the value of the existing row
2055         * with that name.  Note that internally setting values are always
2056         * stored as strings, so this function converts the given value to a
2057         * string before storing it.
2058         *
2059         * @param cr The ContentResolver to access.
2060         * @param name The name of the setting to modify.
2061         * @param value The new value for the setting.
2062         * @return true if the value was set, false on database errors
2063         */
2064        public static boolean putLong(ContentResolver cr, String name, long value) {
2065            return putString(cr, name, Long.toString(value));
2066        }
2067
2068        /**
2069         * Convenience function for retrieving a single secure settings value
2070         * as a floating point number.  Note that internally setting values are
2071         * always stored as strings; this function converts the string to an
2072         * float for you. The default value will be returned if the setting
2073         * is not defined or not a valid float.
2074         *
2075         * @param cr The ContentResolver to access.
2076         * @param name The name of the setting to retrieve.
2077         * @param def Value to return if the setting is not defined.
2078         *
2079         * @return The setting's current value, or 'def' if it is not defined
2080         * or not a valid float.
2081         */
2082        public static float getFloat(ContentResolver cr, String name, float def) {
2083            String v = getString(cr, name);
2084            try {
2085                return v != null ? Float.parseFloat(v) : def;
2086            } catch (NumberFormatException e) {
2087                return def;
2088            }
2089        }
2090
2091        /**
2092         * Convenience function for retrieving a single secure settings value
2093         * as a float.  Note that internally setting values are always
2094         * stored as strings; this function converts the string to a float
2095         * for you.
2096         * <p>
2097         * This version does not take a default value.  If the setting has not
2098         * been set, or the string value is not a number,
2099         * it throws {@link SettingNotFoundException}.
2100         *
2101         * @param cr The ContentResolver to access.
2102         * @param name The name of the setting to retrieve.
2103         *
2104         * @throws SettingNotFoundException Thrown if a setting by the given
2105         * name can't be found or the setting value is not a float.
2106         *
2107         * @return The setting's current value.
2108         */
2109        public static float getFloat(ContentResolver cr, String name)
2110                throws SettingNotFoundException {
2111            String v = getString(cr, name);
2112            try {
2113                return Float.parseFloat(v);
2114            } catch (NumberFormatException e) {
2115                throw new SettingNotFoundException(name);
2116            }
2117        }
2118
2119        /**
2120         * Convenience function for updating a single settings value as a
2121         * floating point number. This will either create a new entry in the
2122         * table if the given name does not exist, or modify the value of the
2123         * existing row with that name.  Note that internally setting values
2124         * are always stored as strings, so this function converts the given
2125         * value to a string before storing it.
2126         *
2127         * @param cr The ContentResolver to access.
2128         * @param name The name of the setting to modify.
2129         * @param value The new value for the setting.
2130         * @return true if the value was set, false on database errors
2131         */
2132        public static boolean putFloat(ContentResolver cr, String name, float value) {
2133            return putString(cr, name, Float.toString(value));
2134        }
2135
2136        /**
2137         * The content:// style URL for this table
2138         */
2139        public static final Uri CONTENT_URI =
2140            Uri.parse("content://" + AUTHORITY + "/secure");
2141
2142        /**
2143         * Whether ADB is enabled.
2144         */
2145        public static final String ADB_ENABLED = "adb_enabled";
2146
2147        /**
2148         * Setting to allow mock locations and location provider status to be injected into the
2149         * LocationManager service for testing purposes during application development.  These
2150         * locations and status values  override actual location and status information generated
2151         * by network, gps, or other location providers.
2152         */
2153        public static final String ALLOW_MOCK_LOCATION = "mock_location";
2154
2155        /**
2156         * A 64-bit number (as a hex string) that is randomly
2157         * generated on the device's first boot and should remain
2158         * constant for the lifetime of the device.  (The value may
2159         * change if a factory reset is performed on the device.)
2160         */
2161        public static final String ANDROID_ID = "android_id";
2162
2163        /**
2164         * Whether bluetooth is enabled/disabled
2165         * 0=disabled. 1=enabled.
2166         */
2167        public static final String BLUETOOTH_ON = "bluetooth_on";
2168
2169        /**
2170         * Get the key that retrieves a bluetooth headset's priority.
2171         * @hide
2172         */
2173        public static final String getBluetoothHeadsetPriorityKey(String address) {
2174            return ("bluetooth_headset_priority_" + address.toUpperCase());
2175        }
2176
2177        /**
2178         * Get the key that retrieves a bluetooth a2dp sink's priority.
2179         * @hide
2180         */
2181        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
2182            return ("bluetooth_a2dp_sink_priority_" + address.toUpperCase());
2183        }
2184
2185        /**
2186         * Whether or not data roaming is enabled. (0 = false, 1 = true)
2187         */
2188        public static final String DATA_ROAMING = "data_roaming";
2189
2190        /**
2191         * Setting to record the input method used by default, holding the ID
2192         * of the desired method.
2193         */
2194        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
2195
2196        /**
2197         * Whether the device has been provisioned (0 = false, 1 = true)
2198         */
2199        public static final String DEVICE_PROVISIONED = "device_provisioned";
2200
2201        /**
2202         * List of input methods that are currently enabled.  This is a string
2203         * containing the IDs of all enabled input methods, each ID separated
2204         * by ':'.
2205         */
2206        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
2207
2208        /**
2209         * Host name and port for a user-selected proxy.
2210         */
2211        public static final String HTTP_PROXY = "http_proxy";
2212
2213        /**
2214         * Whether the package installer should allow installation of apps downloaded from
2215         * sources other than the Android Market (vending machine).
2216         *
2217         * 1 = allow installing from other sources
2218         * 0 = only allow installing from the Android Market
2219         */
2220        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
2221
2222        /**
2223         * Comma-separated list of location providers that activities may access.
2224         */
2225        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
2226
2227        /**
2228         * Whether assisted GPS should be enabled or not.
2229         * @hide
2230         */
2231        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
2232
2233        /**
2234         * The Logging ID (a unique 64-bit value) as a hex string.
2235         * Used as a pseudonymous identifier for logging.
2236         * @deprecated This identifier is poorly initialized and has
2237         * many collisions.  It should not be used.
2238         */
2239        @Deprecated
2240        public static final String LOGGING_ID = "logging_id";
2241
2242        /**
2243         * User preference for which network(s) should be used. Only the
2244         * connectivity service should touch this.
2245         */
2246        public static final String NETWORK_PREFERENCE = "network_preference";
2247
2248        /**
2249         * Used to disable Tethering on a device - defaults to true
2250         * @hide
2251         */
2252        public static final String TETHER_SUPPORTED = "tether_supported";
2253
2254        /**
2255         * No longer supported.
2256         */
2257        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
2258
2259        /**
2260         * No longer supported.
2261         */
2262        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
2263
2264        /**
2265         * No longer supported.
2266         */
2267        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
2268
2269        /**
2270         * Settings classname to launch when Settings is clicked from All
2271         * Applications.  Needed because of user testing between the old
2272         * and new Settings apps.
2273         */
2274        // TODO: 881807
2275        public static final String SETTINGS_CLASSNAME = "settings_classname";
2276
2277        /**
2278         * USB Mass Storage Enabled
2279         */
2280        public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
2281
2282        /**
2283         * If this setting is set (to anything), then all references
2284         * to Gmail on the device must change to Google Mail.
2285         */
2286        public static final String USE_GOOGLE_MAIL = "use_google_mail";
2287
2288        /**
2289         * If accessibility is enabled.
2290         */
2291        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
2292
2293        /**
2294         * List of the enabled accessibility providers.
2295         */
2296        public static final String ENABLED_ACCESSIBILITY_SERVICES =
2297            "enabled_accessibility_services";
2298
2299        /**
2300         * Setting to always use the default text-to-speech settings regardless
2301         * of the application settings.
2302         * 1 = override application settings,
2303         * 0 = use application settings (if specified).
2304         */
2305        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
2306
2307        /**
2308         * Default text-to-speech engine speech rate. 100 = 1x
2309         */
2310        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
2311
2312        /**
2313         * Default text-to-speech engine pitch. 100 = 1x
2314         */
2315        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
2316
2317        /**
2318         * Default text-to-speech engine.
2319         */
2320        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
2321
2322        /**
2323         * Default text-to-speech language.
2324         */
2325        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
2326
2327        /**
2328         * Default text-to-speech country.
2329         */
2330        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
2331
2332        /**
2333         * Default text-to-speech locale variant.
2334         */
2335        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
2336
2337        /**
2338         * Whether to notify the user of open networks.
2339         * <p>
2340         * If not connected and the scan results have an open network, we will
2341         * put this notification up. If we attempt to connect to a network or
2342         * the open network(s) disappear, we remove the notification. When we
2343         * show the notification, we will not show it again for
2344         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
2345         */
2346        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
2347                "wifi_networks_available_notification_on";
2348
2349        /**
2350         * Delay (in seconds) before repeating the Wi-Fi networks available notification.
2351         * Connecting to a network will reset the timer.
2352         */
2353        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
2354                "wifi_networks_available_repeat_delay";
2355
2356        /**
2357         * The number of radio channels that are allowed in the local
2358         * 802.11 regulatory domain.
2359         * @hide
2360         */
2361        public static final String WIFI_NUM_ALLOWED_CHANNELS = "wifi_num_allowed_channels";
2362
2363        /**
2364         * When the number of open networks exceeds this number, the
2365         * least-recently-used excess networks will be removed.
2366         */
2367        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
2368
2369        /**
2370         * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
2371         */
2372        public static final String WIFI_ON = "wifi_on";
2373
2374        /**
2375         * The acceptable packet loss percentage (range 0 - 100) before trying
2376         * another AP on the same network.
2377         */
2378        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
2379                "wifi_watchdog_acceptable_packet_loss_percentage";
2380
2381        /**
2382         * The number of access points required for a network in order for the
2383         * watchdog to monitor it.
2384         */
2385        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
2386
2387        /**
2388         * The delay between background checks.
2389         */
2390        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
2391                "wifi_watchdog_background_check_delay_ms";
2392
2393        /**
2394         * Whether the Wi-Fi watchdog is enabled for background checking even
2395         * after it thinks the user has connected to a good access point.
2396         */
2397        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
2398                "wifi_watchdog_background_check_enabled";
2399
2400        /**
2401         * The timeout for a background ping
2402         */
2403        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
2404                "wifi_watchdog_background_check_timeout_ms";
2405
2406        /**
2407         * The number of initial pings to perform that *may* be ignored if they
2408         * fail. Again, if these fail, they will *not* be used in packet loss
2409         * calculation. For example, one network always seemed to time out for
2410         * the first couple pings, so this is set to 3 by default.
2411         */
2412        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
2413            "wifi_watchdog_initial_ignored_ping_count";
2414
2415        /**
2416         * The maximum number of access points (per network) to attempt to test.
2417         * If this number is reached, the watchdog will no longer monitor the
2418         * initial connection state for the network. This is a safeguard for
2419         * networks containing multiple APs whose DNS does not respond to pings.
2420         */
2421        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
2422
2423        /**
2424         * Whether the Wi-Fi watchdog is enabled.
2425         */
2426        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
2427
2428        /**
2429         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
2430         */
2431        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
2432
2433        /**
2434         * The number of pings to test if an access point is a good connection.
2435         */
2436        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
2437
2438        /**
2439         * The delay between pings.
2440         */
2441        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
2442
2443        /**
2444         * The timeout per ping.
2445         */
2446        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
2447
2448        /**
2449         * The maximum number of times we will retry a connection to an access
2450         * point for which we have failed in acquiring an IP address from DHCP.
2451         * A value of N means that we will make N+1 connection attempts in all.
2452         */
2453        public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
2454
2455        /**
2456         * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
2457         * data connectivity to be established after a disconnect from Wi-Fi.
2458         */
2459        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
2460            "wifi_mobile_data_transition_wakelock_timeout_ms";
2461
2462        /**
2463         * Whether background data usage is allowed by the user. See
2464         * ConnectivityManager for more info.
2465         */
2466        public static final String BACKGROUND_DATA = "background_data";
2467
2468        /**
2469         * Whether mobile data connections are allowed by the user.  See
2470         * ConnectivityManager for more info.
2471         * @hide
2472         */
2473        public static final String MOBILE_DATA = "mobile_data";
2474
2475        /**
2476         * The CDMA roaming mode 0 = Home Networks, CDMA default
2477         *                       1 = Roaming on Affiliated networks
2478         *                       2 = Roaming on any networks
2479         * @hide
2480         */
2481        public static final String CDMA_ROAMING_MODE = "roaming_settings";
2482
2483        /**
2484         * The CDMA subscription mode 0 = RUIM/SIM (default)
2485         *                                1 = NV
2486         * @hide
2487         */
2488        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
2489
2490        /**
2491         * The preferred network mode   7 = Global
2492         *                              6 = EvDo only
2493         *                              5 = CDMA w/o EvDo
2494         *                              4 = CDMA / EvDo auto
2495         *                              3 = GSM / WCDMA auto
2496         *                              2 = WCDMA only
2497         *                              1 = GSM only
2498         *                              0 = GSM / WCDMA preferred
2499         * @hide
2500         */
2501        public static final String PREFERRED_NETWORK_MODE =
2502                "preferred_network_mode";
2503
2504        /**
2505         * The preferred TTY mode     0 = TTy Off, CDMA default
2506         *                            1 = TTY Full
2507         *                            2 = TTY HCO
2508         *                            3 = TTY VCO
2509         * @hide
2510         */
2511        public static final String PREFERRED_TTY_MODE =
2512                "preferred_tty_mode";
2513
2514
2515        /**
2516         * CDMA Cell Broadcast SMS
2517         *                            0 = CDMA Cell Broadcast SMS disabled
2518         *                            1 = CDMA Cell Broadcast SMS enabled
2519         * @hide
2520         */
2521        public static final String CDMA_CELL_BROADCAST_SMS =
2522                "cdma_cell_broadcast_sms";
2523
2524        /**
2525         * The cdma subscription 0 = Subscription from RUIM, when available
2526         *                       1 = Subscription from NV
2527         * @hide
2528         */
2529        public static final String PREFERRED_CDMA_SUBSCRIPTION =
2530                "preferred_cdma_subscription";
2531
2532        /**
2533         * Whether the enhanced voice privacy mode is enabled.
2534         * 0 = normal voice privacy
2535         * 1 = enhanced voice privacy
2536         * @hide
2537         */
2538        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
2539
2540        /**
2541         * Whether the TTY mode mode is enabled.
2542         * 0 = disabled
2543         * 1 = enabled
2544         * @hide
2545         */
2546        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
2547
2548        /**
2549         * Flag for allowing service provider to use location information to improve products and
2550         * services.
2551         * Type: int ( 0 = disallow, 1 = allow )
2552         * @hide
2553         */
2554        public static final String USE_LOCATION_FOR_SERVICES = "use_location";
2555
2556        /**
2557         * Controls whether settings backup is enabled.
2558         * Type: int ( 0 = disabled, 1 = enabled )
2559         * @hide
2560         */
2561        public static final String BACKUP_ENABLED = "backup_enabled";
2562
2563        /**
2564         * Controls whether application data is automatically restored from backup
2565         * at install time.
2566         * Type: int ( 0 = disabled, 1 = enabled )
2567         * @hide
2568         */
2569        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
2570
2571        /**
2572         * Indicates whether settings backup has been fully provisioned.
2573         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
2574         * @hide
2575         */
2576        public static final String BACKUP_PROVISIONED = "backup_provisioned";
2577
2578        /**
2579         * Component of the transport to use for backup/restore.
2580         * @hide
2581         */
2582        public static final String BACKUP_TRANSPORT = "backup_transport";
2583
2584        /**
2585         * Version for which the setup wizard was last shown.  Bumped for
2586         * each release when there is new setup information to show.
2587         * @hide
2588         */
2589        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
2590
2591        /**
2592         * How frequently (in seconds) to check the memory status of the
2593         * device.
2594         * @hide
2595         */
2596        public static final String MEMCHECK_INTERVAL = "memcheck_interval";
2597
2598        /**
2599         * Max frequency (in seconds) to log memory check stats, in realtime
2600         * seconds.  This allows for throttling of logs when the device is
2601         * running for large amounts of time.
2602         * @hide
2603         */
2604        public static final String MEMCHECK_LOG_REALTIME_INTERVAL =
2605                "memcheck_log_realtime_interval";
2606
2607        /**
2608         * Boolean indicating whether rebooting due to system memory checks
2609         * is enabled.
2610         * @hide
2611         */
2612        public static final String MEMCHECK_SYSTEM_ENABLED = "memcheck_system_enabled";
2613
2614        /**
2615         * How many bytes the system process must be below to avoid scheduling
2616         * a soft reboot.  This reboot will happen when it is next determined
2617         * to be a good time.
2618         * @hide
2619         */
2620        public static final String MEMCHECK_SYSTEM_SOFT_THRESHOLD = "memcheck_system_soft";
2621
2622        /**
2623         * How many bytes the system process must be below to avoid scheduling
2624         * a hard reboot.  This reboot will happen immediately.
2625         * @hide
2626         */
2627        public static final String MEMCHECK_SYSTEM_HARD_THRESHOLD = "memcheck_system_hard";
2628
2629        /**
2630         * How many bytes the phone process must be below to avoid scheduling
2631         * a soft restart.  This restart will happen when it is next determined
2632         * to be a good time.
2633         * @hide
2634         */
2635        public static final String MEMCHECK_PHONE_SOFT_THRESHOLD = "memcheck_phone_soft";
2636
2637        /**
2638         * How many bytes the phone process must be below to avoid scheduling
2639         * a hard restart.  This restart will happen immediately.
2640         * @hide
2641         */
2642        public static final String MEMCHECK_PHONE_HARD_THRESHOLD = "memcheck_phone_hard";
2643
2644        /**
2645         * Boolean indicating whether restarting the phone process due to
2646         * memory checks is enabled.
2647         * @hide
2648         */
2649        public static final String MEMCHECK_PHONE_ENABLED = "memcheck_phone_enabled";
2650
2651        /**
2652         * First time during the day it is okay to kill processes
2653         * or reboot the device due to low memory situations.  This number is
2654         * in seconds since midnight.
2655         * @hide
2656         */
2657        public static final String MEMCHECK_EXEC_START_TIME = "memcheck_exec_start_time";
2658
2659        /**
2660         * Last time during the day it is okay to kill processes
2661         * or reboot the device due to low memory situations.  This number is
2662         * in seconds since midnight.
2663         * @hide
2664         */
2665        public static final String MEMCHECK_EXEC_END_TIME = "memcheck_exec_end_time";
2666
2667        /**
2668         * How long the screen must have been off in order to kill processes
2669         * or reboot.  This number is in seconds.  A value of -1 means to
2670         * entirely disregard whether the screen is on.
2671         * @hide
2672         */
2673        public static final String MEMCHECK_MIN_SCREEN_OFF = "memcheck_min_screen_off";
2674
2675        /**
2676         * How much time there must be until the next alarm in order to kill processes
2677         * or reboot.  This number is in seconds.  Note: this value must be
2678         * smaller than {@link #MEMCHECK_RECHECK_INTERVAL} or else it will
2679         * always see an alarm scheduled within its time.
2680         * @hide
2681         */
2682        public static final String MEMCHECK_MIN_ALARM = "memcheck_min_alarm";
2683
2684        /**
2685         * How frequently to check whether it is a good time to restart things,
2686         * if the device is in a bad state.  This number is in seconds.  Note:
2687         * this value must be larger than {@link #MEMCHECK_MIN_ALARM} or else
2688         * the alarm to schedule the recheck will always appear within the
2689         * minimum "do not execute now" time.
2690         * @hide
2691         */
2692        public static final String MEMCHECK_RECHECK_INTERVAL = "memcheck_recheck_interval";
2693
2694        /**
2695         * How frequently (in DAYS) to reboot the device.  If 0, no reboots
2696         * will occur.
2697         * @hide
2698         */
2699        public static final String REBOOT_INTERVAL = "reboot_interval";
2700
2701        /**
2702         * First time during the day it is okay to force a reboot of the
2703         * device (if REBOOT_INTERVAL is set).  This number is
2704         * in seconds since midnight.
2705         * @hide
2706         */
2707        public static final String REBOOT_START_TIME = "reboot_start_time";
2708
2709        /**
2710         * The window of time (in seconds) after each REBOOT_INTERVAL in which
2711         * a reboot can be executed.  If 0, a reboot will always be executed at
2712         * exactly the given time.  Otherwise, it will only be executed if
2713         * the device is idle within the window.
2714         * @hide
2715         */
2716        public static final String REBOOT_WINDOW = "reboot_window";
2717
2718        /**
2719         * Threshold values for the duration and level of a discharge cycle, under
2720         * which we log discharge cycle info.
2721         * @hide
2722         */
2723        public static final String BATTERY_DISCHARGE_DURATION_THRESHOLD =
2724                "battery_discharge_duration_threshold";
2725        /** @hide */
2726        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
2727
2728        /**
2729         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR intents
2730         * on application crashes and ANRs. If this is disabled, the crash/ANR dialog
2731         * will never display the "Report" button.
2732         * Type: int ( 0 = disallow, 1 = allow )
2733         * @hide
2734         */
2735        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
2736
2737        /**
2738         * Nonzero causes Log.wtf() to crash.
2739         * @hide
2740         */
2741        public static final String WTF_IS_FATAL = "wtf_is_fatal";
2742
2743        /**
2744         * Maximum age of entries kept by {@link android.os.IDropBox}.
2745         * @hide
2746         */
2747        public static final String DROPBOX_AGE_SECONDS =
2748                "dropbox_age_seconds";
2749        /**
2750         * Maximum amount of disk space used by {@link android.os.IDropBox} no matter what.
2751         * @hide
2752         */
2753        public static final String DROPBOX_QUOTA_KB =
2754                "dropbox_quota_kb";
2755        /**
2756         * Percent of free disk (excluding reserve) which {@link android.os.IDropBox} will use.
2757         * @hide
2758         */
2759        public static final String DROPBOX_QUOTA_PERCENT =
2760                "dropbox_quota_percent";
2761        /**
2762         * Percent of total disk which {@link android.os.IDropBox} will never dip into.
2763         * @hide
2764         */
2765        public static final String DROPBOX_RESERVE_PERCENT =
2766                "dropbox_reserve_percent";
2767        /**
2768         * Prefix for per-tag dropbox disable/enable settings.
2769         * @hide
2770         */
2771        public static final String DROPBOX_TAG_PREFIX =
2772                "dropbox:";
2773
2774
2775        /**
2776         * Screen timeout in milliseconds corresponding to the
2777         * PowerManager's POKE_LOCK_SHORT_TIMEOUT flag (i.e. the fastest
2778         * possible screen timeout behavior.)
2779         * @hide
2780         */
2781        public static final String SHORT_KEYLIGHT_DELAY_MS =
2782                "short_keylight_delay_ms";
2783
2784        /**
2785         * The interval in minutes after which the amount of free storage left on the
2786         * device is logged to the event log
2787         * @hide
2788         */
2789        public static final String SYS_FREE_STORAGE_LOG_INTERVAL =
2790                "sys_free_storage_log_interval";
2791
2792        /**
2793         * Threshold for the amount of change in disk free space required to report the amount of
2794         * free space. Used to prevent spamming the logs when the disk free space isn't changing
2795         * frequently.
2796         * @hide
2797         */
2798        public static final String DISK_FREE_CHANGE_REPORTING_THRESHOLD =
2799                "disk_free_change_reporting_threshold";
2800
2801
2802        /**
2803         * Minimum percentage of free storage on the device that is used to determine if
2804         * the device is running low on storage.
2805         * Say this value is set to 10, the device is considered running low on storage
2806         * if 90% or more of the device storage is filled up.
2807         * @hide
2808         */
2809        public static final String SYS_STORAGE_THRESHOLD_PERCENTAGE =
2810                "sys_storage_threshold_percentage";
2811
2812        /**
2813         * The interval in milliseconds after which Wi-Fi is considered idle.
2814         * When idle, it is possible for the device to be switched from Wi-Fi to
2815         * the mobile data network.
2816         * @hide
2817         */
2818        public static final String WIFI_IDLE_MS = "wifi_idle_ms";
2819
2820        /**
2821         * The interval in milliseconds at which to check packet counts on the
2822         * mobile data interface when screen is on, to detect possible data
2823         * connection problems.
2824         * @hide
2825         */
2826        public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
2827                "pdp_watchdog_poll_interval_ms";
2828
2829        /**
2830         * The interval in milliseconds at which to check packet counts on the
2831         * mobile data interface when screen is off, to detect possible data
2832         * connection problems.
2833         * @hide
2834         */
2835        public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
2836                "pdp_watchdog_long_poll_interval_ms";
2837
2838        /**
2839         * The interval in milliseconds at which to check packet counts on the
2840         * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
2841         * outgoing packets has been reached without incoming packets.
2842         * @hide
2843         */
2844        public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
2845                "pdp_watchdog_error_poll_interval_ms";
2846
2847        /**
2848         * The number of outgoing packets sent without seeing an incoming packet
2849         * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
2850         * device is logged to the event log
2851         * @hide
2852         */
2853        public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
2854                "pdp_watchdog_trigger_packet_count";
2855
2856        /**
2857         * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
2858         * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
2859         * attempting data connection recovery.
2860         * @hide
2861         */
2862        public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
2863                "pdp_watchdog_error_poll_count";
2864
2865        /**
2866         * The number of failed PDP reset attempts before moving to something more
2867         * drastic: re-registering to the network.
2868         * @hide
2869         */
2870        public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
2871                "pdp_watchdog_max_pdp_reset_fail_count";
2872
2873        /**
2874         * Address to ping as a last sanity check before attempting any recovery.
2875         * Unset or set to "0.0.0.0" to skip this check.
2876         * @hide
2877         */
2878        public static final String PDP_WATCHDOG_PING_ADDRESS = "pdp_watchdog_ping_address";
2879
2880        /**
2881         * The "-w deadline" parameter for the ping, ie, the max time in
2882         * seconds to spend pinging.
2883         * @hide
2884         */
2885        public static final String PDP_WATCHDOG_PING_DEADLINE = "pdp_watchdog_ping_deadline";
2886
2887        /**
2888         * The interval in milliseconds at which to check gprs registration
2889         * after the first registration mismatch of gprs and voice service,
2890         * to detect possible data network registration problems.
2891         *
2892         * @hide
2893         */
2894        public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
2895                "gprs_register_check_period_ms";
2896
2897        /**
2898         * The length of time in milli-seconds that automatic small adjustments to
2899         * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
2900         * @hide
2901         */
2902        public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
2903
2904        /**
2905         * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
2906         * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
2907         * exceeded.
2908         * @hide
2909         */
2910        public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
2911
2912        /**
2913         * The maximum reconnect delay for short network outages or when the network is suspended
2914         * due to phone use.
2915         * @hide
2916         */
2917        public static final String SYNC_MAX_RETRY_DELAY_IN_SECONDS =
2918                "sync_max_retry_delay_in_seconds";
2919
2920        /**
2921         * The interval in milliseconds at which to check the number of SMS sent
2922         * out without asking for use permit, to limit the un-authorized SMS
2923         * usage.
2924         * @hide
2925         */
2926        public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
2927                "sms_outgoing_check_interval_ms";
2928
2929        /**
2930         * The number of outgoing SMS sent without asking for user permit
2931         * (of {@link #SMS_OUTGOING_CHECK_INTERVAL_MS}
2932         * @hide
2933         */
2934        public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
2935                "sms_outgoing_check_max_count";
2936
2937        /**
2938         * The number of promoted sources in GlobalSearch.
2939         * @hide
2940         */
2941        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
2942        /**
2943         * The maximum number of suggestions returned by GlobalSearch.
2944         * @hide
2945         */
2946        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
2947        /**
2948         * The number of suggestions GlobalSearch will ask each non-web search source for.
2949         * @hide
2950         */
2951        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
2952        /**
2953         * The number of suggestions the GlobalSearch will ask the web search source for.
2954         * @hide
2955         */
2956        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
2957                "search_web_results_override_limit";
2958        /**
2959         * The number of milliseconds that GlobalSearch will wait for suggestions from
2960         * promoted sources before continuing with all other sources.
2961         * @hide
2962         */
2963        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
2964                "search_promoted_source_deadline_millis";
2965        /**
2966         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
2967         * @hide
2968         */
2969        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
2970        /**
2971         * The maximum number of milliseconds that GlobalSearch shows the previous results
2972         * after receiving a new query.
2973         * @hide
2974         */
2975        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
2976        /**
2977         * The maximum age of log data used for shortcuts in GlobalSearch.
2978         * @hide
2979         */
2980        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
2981        /**
2982         * The maximum age of log data used for source ranking in GlobalSearch.
2983         * @hide
2984         */
2985        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
2986                "search_max_source_event_age_millis";
2987        /**
2988         * The minimum number of impressions needed to rank a source in GlobalSearch.
2989         * @hide
2990         */
2991        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
2992                "search_min_impressions_for_source_ranking";
2993        /**
2994         * The minimum number of clicks needed to rank a source in GlobalSearch.
2995         * @hide
2996         */
2997        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
2998                "search_min_clicks_for_source_ranking";
2999        /**
3000         * The maximum number of shortcuts shown by GlobalSearch.
3001         * @hide
3002         */
3003        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
3004        /**
3005         * The size of the core thread pool for suggestion queries in GlobalSearch.
3006         * @hide
3007         */
3008        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
3009                "search_query_thread_core_pool_size";
3010        /**
3011         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
3012         * @hide
3013         */
3014        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
3015                "search_query_thread_max_pool_size";
3016        /**
3017         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
3018         * @hide
3019         */
3020        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
3021                "search_shortcut_refresh_core_pool_size";
3022        /**
3023         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
3024         * @hide
3025         */
3026        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
3027                "search_shortcut_refresh_max_pool_size";
3028        /**
3029         * The maximun time that excess threads in the GlobalSeach thread pools will
3030         * wait before terminating.
3031         * @hide
3032         */
3033        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
3034                "search_thread_keepalive_seconds";
3035        /**
3036         * The maximum number of concurrent suggestion queries to each source.
3037         * @hide
3038         */
3039        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
3040                "search_per_source_concurrent_query_limit";
3041
3042        /**
3043         * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
3044         * @hide
3045         */
3046        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
3047
3048        /**
3049         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
3050         * @hide
3051         */
3052        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
3053
3054        /**
3055         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
3056         * @hide
3057         */
3058        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
3059
3060        /**
3061         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
3062         * @hide
3063         */
3064        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
3065
3066        /**
3067         * Whether or not a notification is displayed when a Tetherable interface is detected.
3068         * (0 = false, 1 = true)
3069         * @hide
3070         */
3071        public static final String TETHER_NOTIFY = "tether_notify";
3072
3073        /**
3074         * If nonzero, ANRs in invisible background processes bring up a dialog.
3075         * Otherwise, the process will be silently killed.
3076         * @hide
3077         */
3078        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
3079
3080        /**
3081         * The {@link ComponentName} string of the service to be used as the voice recognition
3082         * service.
3083         *
3084         * @hide
3085         */
3086        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
3087
3088        /**
3089         * @hide
3090         */
3091        public static final String[] SETTINGS_TO_BACKUP = {
3092            ADB_ENABLED,
3093            ALLOW_MOCK_LOCATION,
3094            PARENTAL_CONTROL_ENABLED,
3095            PARENTAL_CONTROL_REDIRECT_URL,
3096            USB_MASS_STORAGE_ENABLED,
3097            ACCESSIBILITY_ENABLED,
3098            ENABLED_ACCESSIBILITY_SERVICES,
3099            TTS_USE_DEFAULTS,
3100            TTS_DEFAULT_RATE,
3101            TTS_DEFAULT_PITCH,
3102            TTS_DEFAULT_SYNTH,
3103            TTS_DEFAULT_LANG,
3104            TTS_DEFAULT_COUNTRY,
3105            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
3106            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
3107            WIFI_NUM_ALLOWED_CHANNELS,
3108            WIFI_NUM_OPEN_NETWORKS_KEPT,
3109            MOUNT_PLAY_NOTIFICATION_SND,
3110            MOUNT_UMS_AUTOSTART,
3111            MOUNT_UMS_PROMPT,
3112            MOUNT_UMS_NOTIFY_ENABLED
3113        };
3114
3115        /**
3116         * Helper method for determining if a location provider is enabled.
3117         * @param cr the content resolver to use
3118         * @param provider the location provider to query
3119         * @return true if the provider is enabled
3120         */
3121        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
3122            String allowedProviders = Settings.Secure.getString(cr, LOCATION_PROVIDERS_ALLOWED);
3123            if (allowedProviders != null) {
3124                return (allowedProviders.equals(provider) ||
3125                        allowedProviders.contains("," + provider + ",") ||
3126                        allowedProviders.startsWith(provider + ",") ||
3127                        allowedProviders.endsWith("," + provider));
3128            }
3129            return false;
3130        }
3131
3132        /**
3133         * Thread-safe method for enabling or disabling a single location provider.
3134         * @param cr the content resolver to use
3135         * @param provider the location provider to enable or disable
3136         * @param enabled true if the provider should be enabled
3137         */
3138        public static final void setLocationProviderEnabled(ContentResolver cr,
3139                String provider, boolean enabled) {
3140            // to ensure thread safety, we write the provider name with a '+' or '-'
3141            // and let the SettingsProvider handle it rather than reading and modifying
3142            // the list of enabled providers.
3143            if (enabled) {
3144                provider = "+" + provider;
3145            } else {
3146                provider = "-" + provider;
3147            }
3148            putString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider);
3149        }
3150    }
3151
3152    /**
3153     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
3154     * Intent URL, allowing it to be either a web page or a particular
3155     * application activity.
3156     *
3157     * @hide
3158     */
3159    public static final class Bookmarks implements BaseColumns
3160    {
3161        private static final String TAG = "Bookmarks";
3162
3163        /**
3164         * The content:// style URL for this table
3165         */
3166        public static final Uri CONTENT_URI =
3167            Uri.parse("content://" + AUTHORITY + "/bookmarks");
3168
3169        /**
3170         * The row ID.
3171         * <p>Type: INTEGER</p>
3172         */
3173        public static final String ID = "_id";
3174
3175        /**
3176         * Descriptive name of the bookmark that can be displayed to the user.
3177         * If this is empty, the title should be resolved at display time (use
3178         * {@link #getTitle(Context, Cursor)} any time you want to display the
3179         * title of a bookmark.)
3180         * <P>
3181         * Type: TEXT
3182         * </P>
3183         */
3184        public static final String TITLE = "title";
3185
3186        /**
3187         * Arbitrary string (displayed to the user) that allows bookmarks to be
3188         * organized into categories.  There are some special names for
3189         * standard folders, which all start with '@'.  The label displayed for
3190         * the folder changes with the locale (via {@link #getLabelForFolder}) but
3191         * the folder name does not change so you can consistently query for
3192         * the folder regardless of the current locale.
3193         *
3194         * <P>Type: TEXT</P>
3195         *
3196         */
3197        public static final String FOLDER = "folder";
3198
3199        /**
3200         * The Intent URL of the bookmark, describing what it points to.  This
3201         * value is given to {@link android.content.Intent#getIntent} to create
3202         * an Intent that can be launched.
3203         * <P>Type: TEXT</P>
3204         */
3205        public static final String INTENT = "intent";
3206
3207        /**
3208         * Optional shortcut character associated with this bookmark.
3209         * <P>Type: INTEGER</P>
3210         */
3211        public static final String SHORTCUT = "shortcut";
3212
3213        /**
3214         * The order in which the bookmark should be displayed
3215         * <P>Type: INTEGER</P>
3216         */
3217        public static final String ORDERING = "ordering";
3218
3219        private static final String[] sIntentProjection = { INTENT };
3220        private static final String[] sShortcutProjection = { ID, SHORTCUT };
3221        private static final String sShortcutSelection = SHORTCUT + "=?";
3222
3223        /**
3224         * Convenience function to retrieve the bookmarked Intent for a
3225         * particular shortcut key.
3226         *
3227         * @param cr The ContentResolver to query.
3228         * @param shortcut The shortcut key.
3229         *
3230         * @return Intent The bookmarked URL, or null if there is no bookmark
3231         *         matching the given shortcut.
3232         */
3233        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
3234        {
3235            Intent intent = null;
3236
3237            Cursor c = cr.query(CONTENT_URI,
3238                    sIntentProjection, sShortcutSelection,
3239                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
3240            // Keep trying until we find a valid shortcut
3241            try {
3242                while (intent == null && c.moveToNext()) {
3243                    try {
3244                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
3245                        intent = Intent.getIntent(intentURI);
3246                    } catch (java.net.URISyntaxException e) {
3247                        // The stored URL is bad...  ignore it.
3248                    } catch (IllegalArgumentException e) {
3249                        // Column not found
3250                        Log.w(TAG, "Intent column not found", e);
3251                    }
3252                }
3253            } finally {
3254                if (c != null) c.close();
3255            }
3256
3257            return intent;
3258        }
3259
3260        /**
3261         * Add a new bookmark to the system.
3262         *
3263         * @param cr The ContentResolver to query.
3264         * @param intent The desired target of the bookmark.
3265         * @param title Bookmark title that is shown to the user; null if none
3266         *            or it should be resolved to the intent's title.
3267         * @param folder Folder in which to place the bookmark; null if none.
3268         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
3269         *            this is non-zero and there is an existing bookmark entry
3270         *            with this same shortcut, then that existing shortcut is
3271         *            cleared (the bookmark is not removed).
3272         * @return The unique content URL for the new bookmark entry.
3273         */
3274        public static Uri add(ContentResolver cr,
3275                                           Intent intent,
3276                                           String title,
3277                                           String folder,
3278                                           char shortcut,
3279                                           int ordering)
3280        {
3281            // If a shortcut is supplied, and it is already defined for
3282            // another bookmark, then remove the old definition.
3283            if (shortcut != 0) {
3284                Cursor c = cr.query(CONTENT_URI,
3285                        sShortcutProjection, sShortcutSelection,
3286                        new String[] { String.valueOf((int) shortcut) }, null);
3287                try {
3288                    if (c.moveToFirst()) {
3289                        while (c.getCount() > 0) {
3290                            if (!c.deleteRow()) {
3291                                Log.w(TAG, "Could not delete existing shortcut row");
3292                            }
3293                        }
3294                    }
3295                } finally {
3296                    if (c != null) c.close();
3297                }
3298            }
3299
3300            ContentValues values = new ContentValues();
3301            if (title != null) values.put(TITLE, title);
3302            if (folder != null) values.put(FOLDER, folder);
3303            values.put(INTENT, intent.toURI());
3304            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
3305            values.put(ORDERING, ordering);
3306            return cr.insert(CONTENT_URI, values);
3307        }
3308
3309        /**
3310         * Return the folder name as it should be displayed to the user.  This
3311         * takes care of localizing special folders.
3312         *
3313         * @param r Resources object for current locale; only need access to
3314         *          system resources.
3315         * @param folder The value found in the {@link #FOLDER} column.
3316         *
3317         * @return CharSequence The label for this folder that should be shown
3318         *         to the user.
3319         */
3320        public static CharSequence getLabelForFolder(Resources r, String folder) {
3321            return folder;
3322        }
3323
3324        /**
3325         * Return the title as it should be displayed to the user. This takes
3326         * care of localizing bookmarks that point to activities.
3327         *
3328         * @param context A context.
3329         * @param cursor A cursor pointing to the row whose title should be
3330         *        returned. The cursor must contain at least the {@link #TITLE}
3331         *        and {@link #INTENT} columns.
3332         * @return A title that is localized and can be displayed to the user,
3333         *         or the empty string if one could not be found.
3334         */
3335        public static CharSequence getTitle(Context context, Cursor cursor) {
3336            int titleColumn = cursor.getColumnIndex(TITLE);
3337            int intentColumn = cursor.getColumnIndex(INTENT);
3338            if (titleColumn == -1 || intentColumn == -1) {
3339                throw new IllegalArgumentException(
3340                        "The cursor must contain the TITLE and INTENT columns.");
3341            }
3342
3343            String title = cursor.getString(titleColumn);
3344            if (!TextUtils.isEmpty(title)) {
3345                return title;
3346            }
3347
3348            String intentUri = cursor.getString(intentColumn);
3349            if (TextUtils.isEmpty(intentUri)) {
3350                return "";
3351            }
3352
3353            Intent intent;
3354            try {
3355                intent = Intent.getIntent(intentUri);
3356            } catch (URISyntaxException e) {
3357                return "";
3358            }
3359
3360            PackageManager packageManager = context.getPackageManager();
3361            ResolveInfo info = packageManager.resolveActivity(intent, 0);
3362            return info != null ? info.loadLabel(packageManager) : "";
3363        }
3364    }
3365
3366    /**
3367     * Returns the device ID that we should use when connecting to the mobile gtalk server.
3368     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
3369     * from the GoogleLoginService.
3370     *
3371     * @param androidId The Android ID for this device.
3372     * @return The device ID that should be used when connecting to the mobile gtalk server.
3373     * @hide
3374     */
3375    public static String getGTalkDeviceId(long androidId) {
3376        return "android-" + Long.toHexString(androidId);
3377    }
3378}
3379