Settings.java revision b58b5db4ba8edc075f6524df200aa8d3c678e267
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
19
20
21import android.annotation.SdkConstant;
22import android.annotation.SdkConstant.SdkConstantType;
23import android.content.ComponentName;
24import android.content.ContentResolver;
25import android.content.ContentValues;
26import android.content.Context;
27import android.content.IContentProvider;
28import android.content.Intent;
29import android.content.pm.ActivityInfo;
30import android.content.pm.PackageManager;
31import android.content.pm.ResolveInfo;
32import android.content.res.Configuration;
33import android.content.res.Resources;
34import android.database.Cursor;
35import android.database.SQLException;
36import android.net.Uri;
37import android.net.wifi.WifiManager;
38import android.os.BatteryManager;
39import android.os.Bundle;
40import android.os.RemoteException;
41import android.os.SystemProperties;
42import android.text.TextUtils;
43import android.util.AndroidException;
44import android.util.Config;
45import android.util.Log;
46
47import java.net.URISyntaxException;
48import java.util.HashMap;
49import java.util.HashSet;
50
51
52/**
53 * The Settings provider contains global system-level device preferences.
54 */
55public final class Settings {
56
57    // Intent actions for Settings
58
59    /**
60     * Activity Action: Show system settings.
61     * <p>
62     * Input: Nothing.
63     * <p>
64     * Output: nothing.
65     */
66    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
67    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
68
69    /**
70     * Activity Action: Show settings to allow configuration of APNs.
71     * <p>
72     * Input: Nothing.
73     * <p>
74     * Output: nothing.
75     */
76    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
77    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
78
79    /**
80     * Activity Action: Show settings to allow configuration of current location
81     * sources.
82     * <p>
83     * In some cases, a matching Activity may not exist, so ensure you
84     * safeguard against this.
85     * <p>
86     * Input: Nothing.
87     * <p>
88     * Output: Nothing.
89     */
90    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
91    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
92            "android.settings.LOCATION_SOURCE_SETTINGS";
93
94    /**
95     * Activity Action: Show settings to allow configuration of wireless controls
96     * such as Wi-Fi, Bluetooth and Mobile networks.
97     * <p>
98     * In some cases, a matching Activity may not exist, so ensure you
99     * safeguard against this.
100     * <p>
101     * Input: Nothing.
102     * <p>
103     * Output: Nothing.
104     */
105    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
106    public static final String ACTION_WIRELESS_SETTINGS =
107            "android.settings.WIRELESS_SETTINGS";
108
109    /**
110     * Activity Action: Show settings to allow entering/exiting airplane mode.
111     * <p>
112     * In some cases, a matching Activity may not exist, so ensure you
113     * safeguard against this.
114     * <p>
115     * Input: Nothing.
116     * <p>
117     * Output: Nothing.
118     */
119    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
120    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
121            "android.settings.AIRPLANE_MODE_SETTINGS";
122
123    /**
124     * Activity Action: Show settings for accessibility modules.
125     * <p>
126     * In some cases, a matching Activity may not exist, so ensure you
127     * safeguard against this.
128     * <p>
129     * Input: Nothing.
130     * <p>
131     * Output: Nothing.
132     */
133    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
134    public static final String ACTION_ACCESSIBILITY_SETTINGS =
135            "android.settings.ACCESSIBILITY_SETTINGS";
136
137    /**
138     * Activity Action: Show settings to allow configuration of security and
139     * location privacy.
140     * <p>
141     * In some cases, a matching Activity may not exist, so ensure you
142     * safeguard against this.
143     * <p>
144     * Input: Nothing.
145     * <p>
146     * Output: Nothing.
147     */
148    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
149    public static final String ACTION_SECURITY_SETTINGS =
150            "android.settings.SECURITY_SETTINGS";
151
152    /**
153     * Activity Action: Show settings to allow configuration of privacy options.
154     * <p>
155     * In some cases, a matching Activity may not exist, so ensure you
156     * safeguard against this.
157     * <p>
158     * Input: Nothing.
159     * <p>
160     * Output: Nothing.
161     */
162    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
163    public static final String ACTION_PRIVACY_SETTINGS =
164            "android.settings.PRIVACY_SETTINGS";
165
166    /**
167     * Activity Action: Show settings to allow configuration of Wi-Fi.
168
169     * <p>
170     * In some cases, a matching Activity may not exist, so ensure you
171     * safeguard against this.
172     * <p>
173     * Input: Nothing.
174     * <p>
175     * Output: Nothing.
176
177     */
178    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
179    public static final String ACTION_WIFI_SETTINGS =
180            "android.settings.WIFI_SETTINGS";
181
182    /**
183     * Activity Action: Show settings to allow configuration of a static IP
184     * address for Wi-Fi.
185     * <p>
186     * In some cases, a matching Activity may not exist, so ensure you safeguard
187     * against this.
188     * <p>
189     * Input: Nothing.
190     * <p>
191     * Output: Nothing.
192     */
193    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
194    public static final String ACTION_WIFI_IP_SETTINGS =
195            "android.settings.WIFI_IP_SETTINGS";
196
197    /**
198     * Activity Action: Show settings to allow configuration of Bluetooth.
199     * <p>
200     * In some cases, a matching Activity may not exist, so ensure you
201     * safeguard against this.
202     * <p>
203     * Input: Nothing.
204     * <p>
205     * Output: Nothing.
206     */
207    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
208    public static final String ACTION_BLUETOOTH_SETTINGS =
209            "android.settings.BLUETOOTH_SETTINGS";
210
211    /**
212     * Activity Action: Show settings to allow configuration of date and time.
213     * <p>
214     * In some cases, a matching Activity may not exist, so ensure you
215     * safeguard against this.
216     * <p>
217     * Input: Nothing.
218     * <p>
219     * Output: Nothing.
220     */
221    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
222    public static final String ACTION_DATE_SETTINGS =
223            "android.settings.DATE_SETTINGS";
224
225    /**
226     * Activity Action: Show settings to allow configuration of sound and volume.
227     * <p>
228     * In some cases, a matching Activity may not exist, so ensure you
229     * safeguard against this.
230     * <p>
231     * Input: Nothing.
232     * <p>
233     * Output: Nothing.
234     */
235    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
236    public static final String ACTION_SOUND_SETTINGS =
237            "android.settings.SOUND_SETTINGS";
238
239    /**
240     * Activity Action: Show settings to allow configuration of display.
241     * <p>
242     * In some cases, a matching Activity may not exist, so ensure you
243     * safeguard against this.
244     * <p>
245     * Input: Nothing.
246     * <p>
247     * Output: Nothing.
248     */
249    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
250    public static final String ACTION_DISPLAY_SETTINGS =
251            "android.settings.DISPLAY_SETTINGS";
252
253    /**
254     * Activity Action: Show settings to allow configuration of locale.
255     * <p>
256     * In some cases, a matching Activity may not exist, so ensure you
257     * safeguard against this.
258     * <p>
259     * Input: Nothing.
260     * <p>
261     * Output: Nothing.
262     */
263    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
264    public static final String ACTION_LOCALE_SETTINGS =
265            "android.settings.LOCALE_SETTINGS";
266
267    /**
268     * Activity Action: Show settings to configure input methods, in particular
269     * allowing the user to enable input methods.
270     * <p>
271     * In some cases, a matching Activity may not exist, so ensure you
272     * safeguard against this.
273     * <p>
274     * Input: Nothing.
275     * <p>
276     * Output: Nothing.
277     */
278    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
279    public static final String ACTION_INPUT_METHOD_SETTINGS =
280            "android.settings.INPUT_METHOD_SETTINGS";
281
282    /**
283     * Activity Action: Show settings to enable/disable input method subtypes.
284     * <p>
285     * In some cases, a matching Activity may not exist, so ensure you
286     * safeguard against this.
287     * <p>
288     * To tell which input method's subtypes are displayed in the settings, add
289     * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
290     * If there is no extra in this Intent, subtypes from all installed input methods
291     * will be displayed in the settings.
292     *
293     * @see android.view.inputmethod.InputMethodInfo#getId
294     * <p>
295     * Input: Nothing.
296     * <p>
297     * Output: Nothing.
298     */
299    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
300    public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
301            "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
302
303    /**
304     * Activity Action: Show settings to manage the user input dictionary.
305     * <p>
306     * In some cases, a matching Activity may not exist, so ensure you
307     * safeguard against this.
308     * <p>
309     * Input: Nothing.
310     * <p>
311     * Output: Nothing.
312     */
313    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
314    public static final String ACTION_USER_DICTIONARY_SETTINGS =
315            "android.settings.USER_DICTIONARY_SETTINGS";
316
317    /**
318     * Activity Action: Show settings to allow configuration of application-related settings.
319     * <p>
320     * In some cases, a matching Activity may not exist, so ensure you
321     * safeguard against this.
322     * <p>
323     * Input: Nothing.
324     * <p>
325     * Output: Nothing.
326     */
327    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
328    public static final String ACTION_APPLICATION_SETTINGS =
329            "android.settings.APPLICATION_SETTINGS";
330
331    /**
332     * Activity Action: Show settings to allow configuration of application
333     * development-related settings.
334     * <p>
335     * In some cases, a matching Activity may not exist, so ensure you safeguard
336     * against this.
337     * <p>
338     * Input: Nothing.
339     * <p>
340     * Output: Nothing.
341     */
342    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
343    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
344            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
345
346    /**
347     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
348     * <p>
349     * In some cases, a matching Activity may not exist, so ensure you
350     * safeguard against this.
351     * <p>
352     * Input: Nothing.
353     * <p>
354     * Output: Nothing.
355     */
356    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
357    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
358            "android.settings.QUICK_LAUNCH_SETTINGS";
359
360    /**
361     * Activity Action: Show settings to manage installed applications.
362     * <p>
363     * In some cases, a matching Activity may not exist, so ensure you
364     * safeguard against this.
365     * <p>
366     * Input: Nothing.
367     * <p>
368     * Output: Nothing.
369     */
370    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
371    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
372            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
373
374    /**
375     * Activity Action: Show settings to manage all applications.
376     * <p>
377     * In some cases, a matching Activity may not exist, so ensure you
378     * safeguard against this.
379     * <p>
380     * Input: Nothing.
381     * <p>
382     * Output: Nothing.
383     */
384    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
385    public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
386            "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";
387
388    /**
389     * Activity Action: Show screen of details about a particular application.
390     * <p>
391     * In some cases, a matching Activity may not exist, so ensure you
392     * safeguard against this.
393     * <p>
394     * Input: The Intent's data URI specifies the application package name
395     * to be shown, with the "package" scheme.  That is "package:com.my.app".
396     * <p>
397     * Output: Nothing.
398     */
399    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
400    public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
401            "android.settings.APPLICATION_DETAILS_SETTINGS";
402
403    /**
404     * Activity Action: Show settings for system update functionality.
405     * <p>
406     * In some cases, a matching Activity may not exist, so ensure you
407     * safeguard against this.
408     * <p>
409     * Input: Nothing.
410     * <p>
411     * Output: Nothing.
412     *
413     * @hide
414     */
415    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
416    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
417            "android.settings.SYSTEM_UPDATE_SETTINGS";
418
419    /**
420     * Activity Action: Show settings to allow configuration of sync settings.
421     * <p>
422     * In some cases, a matching Activity may not exist, so ensure you
423     * safeguard against this.
424     * <p>
425     * The account types available to add via the add account button may be restricted by adding an
426     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
427     * authorities. Only account types which can sync with that content provider will be offered to
428     * the user.
429     * <p>
430     * Input: Nothing.
431     * <p>
432     * Output: Nothing.
433     */
434    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
435    public static final String ACTION_SYNC_SETTINGS =
436            "android.settings.SYNC_SETTINGS";
437
438    /**
439     * Activity Action: Show add account screen for creating a new account.
440     * <p>
441     * In some cases, a matching Activity may not exist, so ensure you
442     * safeguard against this.
443     * <p>
444     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
445     * extra to the Intent with one or more syncable content provider's authorities.  Only account
446     * types which can sync with that content provider will be offered to the user.
447     * <p>
448     * Input: Nothing.
449     * <p>
450     * Output: Nothing.
451     */
452    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
453    public static final String ACTION_ADD_ACCOUNT =
454            "android.settings.ADD_ACCOUNT_SETTINGS";
455
456    /**
457     * Activity Action: Show settings for selecting the network operator.
458     * <p>
459     * In some cases, a matching Activity may not exist, so ensure you
460     * safeguard against this.
461     * <p>
462     * Input: Nothing.
463     * <p>
464     * Output: Nothing.
465     */
466    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
467    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
468            "android.settings.NETWORK_OPERATOR_SETTINGS";
469
470    /**
471     * Activity Action: Show settings for selection of 2G/3G.
472     * <p>
473     * In some cases, a matching Activity may not exist, so ensure you
474     * safeguard against this.
475     * <p>
476     * Input: Nothing.
477     * <p>
478     * Output: Nothing.
479     */
480    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
481    public static final String ACTION_DATA_ROAMING_SETTINGS =
482            "android.settings.DATA_ROAMING_SETTINGS";
483
484    /**
485     * Activity Action: Show settings for internal storage.
486     * <p>
487     * In some cases, a matching Activity may not exist, so ensure you
488     * safeguard against this.
489     * <p>
490     * Input: Nothing.
491     * <p>
492     * Output: Nothing.
493     */
494    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
495    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
496            "android.settings.INTERNAL_STORAGE_SETTINGS";
497    /**
498     * Activity Action: Show settings for memory card storage.
499     * <p>
500     * In some cases, a matching Activity may not exist, so ensure you
501     * safeguard against this.
502     * <p>
503     * Input: Nothing.
504     * <p>
505     * Output: Nothing.
506     */
507    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
508    public static final String ACTION_MEMORY_CARD_SETTINGS =
509            "android.settings.MEMORY_CARD_SETTINGS";
510
511    /**
512     * Activity Action: Show settings for global search.
513     * <p>
514     * In some cases, a matching Activity may not exist, so ensure you
515     * safeguard against this.
516     * <p>
517     * Input: Nothing.
518     * <p>
519     * Output: Nothing
520     */
521    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
522    public static final String ACTION_SEARCH_SETTINGS =
523        "android.search.action.SEARCH_SETTINGS";
524
525    /**
526     * Activity Action: Show general device information settings (serial
527     * number, software version, phone number, etc.).
528     * <p>
529     * In some cases, a matching Activity may not exist, so ensure you
530     * safeguard against this.
531     * <p>
532     * Input: Nothing.
533     * <p>
534     * Output: Nothing
535     */
536    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
537    public static final String ACTION_DEVICE_INFO_SETTINGS =
538        "android.settings.DEVICE_INFO_SETTINGS";
539
540    // End of Intent actions for Settings
541
542    /**
543     * @hide - Private call() method on SettingsProvider to read from 'system' table.
544     */
545    public static final String CALL_METHOD_GET_SYSTEM = "GET_system";
546
547    /**
548     * @hide - Private call() method on SettingsProvider to read from 'secure' table.
549     */
550    public static final String CALL_METHOD_GET_SECURE = "GET_secure";
551
552    /**
553     * Activity Extra: Limit available options in launched activity based on the given authority.
554     * <p>
555     * This can be passed as an extra field in an Activity Intent with one or more syncable content
556     * provider's authorities as a String[]. This field is used by some intents to alter the
557     * behavior of the called activity.
558     * <p>
559     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
560     * on the authority given.
561     */
562    public static final String EXTRA_AUTHORITIES =
563            "authorities";
564
565    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
566
567    private static final String JID_RESOURCE_PREFIX = "android";
568
569    public static final String AUTHORITY = "settings";
570
571    private static final String TAG = "Settings";
572    private static final boolean LOCAL_LOGV = Config.LOGV || false;
573
574    public static class SettingNotFoundException extends AndroidException {
575        public SettingNotFoundException(String msg) {
576            super(msg);
577        }
578    }
579
580    /**
581     * Common base for tables of name/value settings.
582     */
583    public static class NameValueTable implements BaseColumns {
584        public static final String NAME = "name";
585        public static final String VALUE = "value";
586
587        protected static boolean putString(ContentResolver resolver, Uri uri,
588                String name, String value) {
589            // The database will take care of replacing duplicates.
590            try {
591                ContentValues values = new ContentValues();
592                values.put(NAME, name);
593                values.put(VALUE, value);
594                resolver.insert(uri, values);
595                return true;
596            } catch (SQLException e) {
597                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
598                return false;
599            }
600        }
601
602        public static Uri getUriFor(Uri uri, String name) {
603            return Uri.withAppendedPath(uri, name);
604        }
605    }
606
607    // Thread-safe.
608    private static class NameValueCache {
609        private final String mVersionSystemProperty;
610        private final Uri mUri;
611
612        private static final String[] SELECT_VALUE =
613            new String[] { Settings.NameValueTable.VALUE };
614        private static final String NAME_EQ_PLACEHOLDER = "name=?";
615
616        // Must synchronize on 'this' to access mValues and mValuesVersion.
617        private final HashMap<String, String> mValues = new HashMap<String, String>();
618        private long mValuesVersion = 0;
619
620        // Initially null; set lazily and held forever.  Synchronized on 'this'.
621        private IContentProvider mContentProvider = null;
622
623        // The method we'll call (or null, to not use) on the provider
624        // for the fast path of retrieving settings.
625        private final String mCallCommand;
626
627        public NameValueCache(String versionSystemProperty, Uri uri, String callCommand) {
628            mVersionSystemProperty = versionSystemProperty;
629            mUri = uri;
630            mCallCommand = callCommand;
631        }
632
633        public String getString(ContentResolver cr, String name) {
634            long newValuesVersion = SystemProperties.getLong(mVersionSystemProperty, 0);
635
636            synchronized (this) {
637                if (mValuesVersion != newValuesVersion) {
638                    if (LOCAL_LOGV) {
639                        Log.v(TAG, "invalidate [" + mUri.getLastPathSegment() + "]: current " +
640                                newValuesVersion + " != cached " + mValuesVersion);
641                    }
642
643                    mValues.clear();
644                    mValuesVersion = newValuesVersion;
645                }
646
647                if (mValues.containsKey(name)) {
648                    return mValues.get(name);  // Could be null, that's OK -- negative caching
649                }
650            }
651
652            IContentProvider cp = null;
653            synchronized (this) {
654                cp = mContentProvider;
655                if (cp == null) {
656                    cp = mContentProvider = cr.acquireProvider(mUri.getAuthority());
657                }
658            }
659
660            // Try the fast path first, not using query().  If this
661            // fails (alternate Settings provider that doesn't support
662            // this interface?) then we fall back to the query/table
663            // interface.
664            if (mCallCommand != null) {
665                try {
666                    Bundle b = cp.call(mCallCommand, name, null);
667                    if (b != null) {
668                        String value = b.getPairValue();
669                        synchronized (this) {
670                            mValues.put(name, value);
671                        }
672                        return value;
673                    }
674                    // If the response Bundle is null, we fall through
675                    // to the query interface below.
676                } catch (RemoteException e) {
677                    // Not supported by the remote side?  Fall through
678                    // to query().
679                }
680            }
681
682            Cursor c = null;
683            try {
684                c = cp.query(mUri, SELECT_VALUE, NAME_EQ_PLACEHOLDER,
685                             new String[]{name}, null);
686                if (c == null) {
687                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
688                    return null;
689                }
690
691                String value = c.moveToNext() ? c.getString(0) : null;
692                synchronized (this) {
693                    mValues.put(name, value);
694                }
695                if (LOCAL_LOGV) {
696                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
697                            name + " = " + (value == null ? "(null)" : value));
698                }
699                return value;
700            } catch (RemoteException e) {
701                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
702                return null;  // Return null, but don't cache it.
703            } finally {
704                if (c != null) c.close();
705            }
706        }
707    }
708
709    /**
710     * System settings, containing miscellaneous system preferences.  This
711     * table holds simple name/value pairs.  There are convenience
712     * functions for accessing individual settings entries.
713     */
714    public static final class System extends NameValueTable {
715        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_system_version";
716
717        // Populated lazily, guarded by class object:
718        private static NameValueCache sNameValueCache = null;
719
720        private static final HashSet<String> MOVED_TO_SECURE;
721        static {
722            MOVED_TO_SECURE = new HashSet<String>(30);
723            MOVED_TO_SECURE.add(Secure.ADB_ENABLED);
724            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
725            MOVED_TO_SECURE.add(Secure.BLUETOOTH_ON);
726            MOVED_TO_SECURE.add(Secure.DATA_ROAMING);
727            MOVED_TO_SECURE.add(Secure.DEVICE_PROVISIONED);
728            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
729            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
730            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
731            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
732            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
733            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
734            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
735            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
736            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
737            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
738            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
739            MOVED_TO_SECURE.add(Secure.USB_MASS_STORAGE_ENABLED);
740            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
741            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
742            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
743            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
744            MOVED_TO_SECURE.add(Secure.WIFI_ON);
745            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
746            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
747            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
748            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
749            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
750            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
751            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
752            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
753            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
754            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
755            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
756        }
757
758        /**
759         * Look up a name in the database.
760         * @param resolver to access the database with
761         * @param name to look up in the table
762         * @return the corresponding value, or null if not present
763         */
764        public synchronized static String getString(ContentResolver resolver, String name) {
765            if (MOVED_TO_SECURE.contains(name)) {
766                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
767                        + " to android.provider.Settings.Secure, returning read-only value.");
768                return Secure.getString(resolver, name);
769            }
770            if (sNameValueCache == null) {
771                sNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI,
772                                                     CALL_METHOD_GET_SYSTEM);
773            }
774            return sNameValueCache.getString(resolver, name);
775        }
776
777        /**
778         * Store a name/value pair into the database.
779         * @param resolver to access the database with
780         * @param name to store
781         * @param value to associate with the name
782         * @return true if the value was set, false on database errors
783         */
784        public static boolean putString(ContentResolver resolver, String name, String value) {
785            if (MOVED_TO_SECURE.contains(name)) {
786                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
787                        + " to android.provider.Settings.Secure, value is unchanged.");
788                return false;
789            }
790            return putString(resolver, CONTENT_URI, name, value);
791        }
792
793        /**
794         * Construct the content URI for a particular name/value pair,
795         * useful for monitoring changes with a ContentObserver.
796         * @param name to look up in the table
797         * @return the corresponding content URI, or null if not present
798         */
799        public static Uri getUriFor(String name) {
800            if (MOVED_TO_SECURE.contains(name)) {
801                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
802                    + " to android.provider.Settings.Secure, returning Secure URI.");
803                return Secure.getUriFor(Secure.CONTENT_URI, name);
804            }
805            return getUriFor(CONTENT_URI, name);
806        }
807
808        /**
809         * Convenience function for retrieving a single system settings value
810         * as an integer.  Note that internally setting values are always
811         * stored as strings; this function converts the string to an integer
812         * for you.  The default value will be returned if the setting is
813         * not defined or not an integer.
814         *
815         * @param cr The ContentResolver to access.
816         * @param name The name of the setting to retrieve.
817         * @param def Value to return if the setting is not defined.
818         *
819         * @return The setting's current value, or 'def' if it is not defined
820         * or not a valid integer.
821         */
822        public static int getInt(ContentResolver cr, String name, int def) {
823            String v = getString(cr, name);
824            try {
825                return v != null ? Integer.parseInt(v) : def;
826            } catch (NumberFormatException e) {
827                return def;
828            }
829        }
830
831        /**
832         * Convenience function for retrieving a single system settings value
833         * as an integer.  Note that internally setting values are always
834         * stored as strings; this function converts the string to an integer
835         * for you.
836         * <p>
837         * This version does not take a default value.  If the setting has not
838         * been set, or the string value is not a number,
839         * it throws {@link SettingNotFoundException}.
840         *
841         * @param cr The ContentResolver to access.
842         * @param name The name of the setting to retrieve.
843         *
844         * @throws SettingNotFoundException Thrown if a setting by the given
845         * name can't be found or the setting value is not an integer.
846         *
847         * @return The setting's current value.
848         */
849        public static int getInt(ContentResolver cr, String name)
850                throws SettingNotFoundException {
851            String v = getString(cr, name);
852            try {
853                return Integer.parseInt(v);
854            } catch (NumberFormatException e) {
855                throw new SettingNotFoundException(name);
856            }
857        }
858
859        /**
860         * Convenience function for updating a single settings value as an
861         * integer. This will either create a new entry in the table if the
862         * given name does not exist, or modify the value of the existing row
863         * with that name.  Note that internally setting values are always
864         * stored as strings, so this function converts the given value to a
865         * string before storing it.
866         *
867         * @param cr The ContentResolver to access.
868         * @param name The name of the setting to modify.
869         * @param value The new value for the setting.
870         * @return true if the value was set, false on database errors
871         */
872        public static boolean putInt(ContentResolver cr, String name, int value) {
873            return putString(cr, name, Integer.toString(value));
874        }
875
876        /**
877         * Convenience function for retrieving a single system settings value
878         * as a {@code long}.  Note that internally setting values are always
879         * stored as strings; this function converts the string to a {@code long}
880         * for you.  The default value will be returned if the setting is
881         * not defined or not a {@code long}.
882         *
883         * @param cr The ContentResolver to access.
884         * @param name The name of the setting to retrieve.
885         * @param def Value to return if the setting is not defined.
886         *
887         * @return The setting's current value, or 'def' if it is not defined
888         * or not a valid {@code long}.
889         */
890        public static long getLong(ContentResolver cr, String name, long def) {
891            String valString = getString(cr, name);
892            long value;
893            try {
894                value = valString != null ? Long.parseLong(valString) : def;
895            } catch (NumberFormatException e) {
896                value = def;
897            }
898            return value;
899        }
900
901        /**
902         * Convenience function for retrieving a single system settings value
903         * as a {@code long}.  Note that internally setting values are always
904         * stored as strings; this function converts the string to a {@code long}
905         * for you.
906         * <p>
907         * This version does not take a default value.  If the setting has not
908         * been set, or the string value is not a number,
909         * it throws {@link SettingNotFoundException}.
910         *
911         * @param cr The ContentResolver to access.
912         * @param name The name of the setting to retrieve.
913         *
914         * @return The setting's current value.
915         * @throws SettingNotFoundException Thrown if a setting by the given
916         * name can't be found or the setting value is not an integer.
917         */
918        public static long getLong(ContentResolver cr, String name)
919                throws SettingNotFoundException {
920            String valString = getString(cr, name);
921            try {
922                return Long.parseLong(valString);
923            } catch (NumberFormatException e) {
924                throw new SettingNotFoundException(name);
925            }
926        }
927
928        /**
929         * Convenience function for updating a single settings value as a long
930         * integer. This will either create a new entry in the table if the
931         * given name does not exist, or modify the value of the existing row
932         * with that name.  Note that internally setting values are always
933         * stored as strings, so this function converts the given value to a
934         * string before storing it.
935         *
936         * @param cr The ContentResolver to access.
937         * @param name The name of the setting to modify.
938         * @param value The new value for the setting.
939         * @return true if the value was set, false on database errors
940         */
941        public static boolean putLong(ContentResolver cr, String name, long value) {
942            return putString(cr, name, Long.toString(value));
943        }
944
945        /**
946         * Convenience function for retrieving a single system settings value
947         * as a floating point number.  Note that internally setting values are
948         * always stored as strings; this function converts the string to an
949         * float for you. The default value will be returned if the setting
950         * is not defined or not a valid float.
951         *
952         * @param cr The ContentResolver to access.
953         * @param name The name of the setting to retrieve.
954         * @param def Value to return if the setting is not defined.
955         *
956         * @return The setting's current value, or 'def' if it is not defined
957         * or not a valid float.
958         */
959        public static float getFloat(ContentResolver cr, String name, float def) {
960            String v = getString(cr, name);
961            try {
962                return v != null ? Float.parseFloat(v) : def;
963            } catch (NumberFormatException e) {
964                return def;
965            }
966        }
967
968        /**
969         * Convenience function for retrieving a single system settings value
970         * as a float.  Note that internally setting values are always
971         * stored as strings; this function converts the string to a float
972         * for you.
973         * <p>
974         * This version does not take a default value.  If the setting has not
975         * been set, or the string value is not a number,
976         * it throws {@link SettingNotFoundException}.
977         *
978         * @param cr The ContentResolver to access.
979         * @param name The name of the setting to retrieve.
980         *
981         * @throws SettingNotFoundException Thrown if a setting by the given
982         * name can't be found or the setting value is not a float.
983         *
984         * @return The setting's current value.
985         */
986        public static float getFloat(ContentResolver cr, String name)
987                throws SettingNotFoundException {
988            String v = getString(cr, name);
989            if (v == null) {
990                throw new SettingNotFoundException(name);
991            }
992            try {
993                return Float.parseFloat(v);
994            } catch (NumberFormatException e) {
995                throw new SettingNotFoundException(name);
996            }
997        }
998
999        /**
1000         * Convenience function for updating a single settings value as a
1001         * floating point number. This will either create a new entry in the
1002         * table if the given name does not exist, or modify the value of the
1003         * existing row with that name.  Note that internally setting values
1004         * are always stored as strings, so this function converts the given
1005         * value to a string before storing it.
1006         *
1007         * @param cr The ContentResolver to access.
1008         * @param name The name of the setting to modify.
1009         * @param value The new value for the setting.
1010         * @return true if the value was set, false on database errors
1011         */
1012        public static boolean putFloat(ContentResolver cr, String name, float value) {
1013            return putString(cr, name, Float.toString(value));
1014        }
1015
1016        /**
1017         * Convenience function to read all of the current
1018         * configuration-related settings into a
1019         * {@link Configuration} object.
1020         *
1021         * @param cr The ContentResolver to access.
1022         * @param outConfig Where to place the configuration settings.
1023         */
1024        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
1025            outConfig.fontScale = Settings.System.getFloat(
1026                cr, FONT_SCALE, outConfig.fontScale);
1027            if (outConfig.fontScale < 0) {
1028                outConfig.fontScale = 1;
1029            }
1030        }
1031
1032        /**
1033         * Convenience function to write a batch of configuration-related
1034         * settings from a {@link Configuration} object.
1035         *
1036         * @param cr The ContentResolver to access.
1037         * @param config The settings to write.
1038         * @return true if the values were set, false on database errors
1039         */
1040        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
1041            return Settings.System.putFloat(cr, FONT_SCALE, config.fontScale);
1042        }
1043
1044        /** @hide */
1045        public static boolean hasInterestingConfigurationChanges(int changes) {
1046            return (changes&ActivityInfo.CONFIG_FONT_SCALE) != 0;
1047        }
1048
1049        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
1050            return getInt(cr, SHOW_GTALK_SERVICE_STATUS, 0) != 0;
1051        }
1052
1053        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
1054            putInt(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0);
1055        }
1056
1057        /**
1058         * The content:// style URL for this table
1059         */
1060        public static final Uri CONTENT_URI =
1061            Uri.parse("content://" + AUTHORITY + "/system");
1062
1063        /**
1064         * Whether we keep the device on while the device is plugged in.
1065         * Supported values are:
1066         * <ul>
1067         * <li>{@code 0} to never stay on while plugged in</li>
1068         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
1069         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
1070         * </ul>
1071         * These values can be OR-ed together.
1072         */
1073        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
1074
1075        /**
1076         * What happens when the user presses the end call button if they're not
1077         * on a call.<br/>
1078         * <b>Values:</b><br/>
1079         * 0 - The end button does nothing.<br/>
1080         * 1 - The end button goes to the home screen.<br/>
1081         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
1082         * 3 - The end button goes to the home screen.  If the user is already on the
1083         * home screen, it puts the device to sleep.
1084         */
1085        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
1086
1087        /**
1088         * END_BUTTON_BEHAVIOR value for "go home".
1089         * @hide
1090         */
1091        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
1092
1093        /**
1094         * END_BUTTON_BEHAVIOR value for "go to sleep".
1095         * @hide
1096         */
1097        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
1098
1099        /**
1100         * END_BUTTON_BEHAVIOR default value.
1101         * @hide
1102         */
1103        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
1104
1105        /**
1106         * Whether Airplane Mode is on.
1107         */
1108        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
1109
1110        /**
1111         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
1112         */
1113        public static final String RADIO_BLUETOOTH = "bluetooth";
1114
1115        /**
1116         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
1117         */
1118        public static final String RADIO_WIFI = "wifi";
1119
1120        /**
1121         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
1122         */
1123        public static final String RADIO_CELL = "cell";
1124
1125        /**
1126         * A comma separated list of radios that need to be disabled when airplane mode
1127         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
1128         * included in the comma separated list.
1129         */
1130        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
1131
1132        /**
1133         * A comma separated list of radios that should to be disabled when airplane mode
1134         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
1135         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
1136         * will be turned off when entering airplane mode, but the user will be able to reenable
1137         * Wifi in the Settings app.
1138         *
1139         * {@hide}
1140         */
1141        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
1142
1143        /**
1144         * The policy for deciding when Wi-Fi should go to sleep (which will in
1145         * turn switch to using the mobile data as an Internet connection).
1146         * <p>
1147         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
1148         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
1149         * {@link #WIFI_SLEEP_POLICY_NEVER}.
1150         */
1151        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
1152
1153        /**
1154         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
1155         * policy, which is to sleep shortly after the turning off
1156         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
1157         */
1158        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
1159
1160        /**
1161         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
1162         * the device is on battery, and never go to sleep when the device is
1163         * plugged in.
1164         */
1165        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
1166
1167        /**
1168         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
1169         */
1170        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
1171
1172        //TODO: deprecate static IP constants
1173        /**
1174         * Whether to use static IP and other static network attributes.
1175         * <p>
1176         * Set to 1 for true and 0 for false.
1177         */
1178        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
1179
1180        /**
1181         * The static IP address.
1182         * <p>
1183         * Example: "192.168.1.51"
1184         */
1185        public static final String WIFI_STATIC_IP = "wifi_static_ip";
1186
1187        /**
1188         * If using static IP, the gateway's IP address.
1189         * <p>
1190         * Example: "192.168.1.1"
1191         */
1192        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
1193
1194        /**
1195         * If using static IP, the net mask.
1196         * <p>
1197         * Example: "255.255.255.0"
1198         */
1199        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
1200
1201        /**
1202         * If using static IP, the primary DNS's IP address.
1203         * <p>
1204         * Example: "192.168.1.1"
1205         */
1206        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
1207
1208        /**
1209         * If using static IP, the secondary DNS's IP address.
1210         * <p>
1211         * Example: "192.168.1.2"
1212         */
1213        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
1214
1215
1216        /**
1217         * Determines whether remote devices may discover and/or connect to
1218         * this device.
1219         * <P>Type: INT</P>
1220         * 2 -- discoverable and connectable
1221         * 1 -- connectable but not discoverable
1222         * 0 -- neither connectable nor discoverable
1223         */
1224        public static final String BLUETOOTH_DISCOVERABILITY =
1225            "bluetooth_discoverability";
1226
1227        /**
1228         * Bluetooth discoverability timeout.  If this value is nonzero, then
1229         * Bluetooth becomes discoverable for a certain number of seconds,
1230         * after which is becomes simply connectable.  The value is in seconds.
1231         */
1232        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
1233            "bluetooth_discoverability_timeout";
1234
1235        /**
1236         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
1237         * instead
1238         */
1239        @Deprecated
1240        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
1241
1242        /**
1243         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
1244         * instead
1245         */
1246        @Deprecated
1247        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
1248
1249        /**
1250         * @deprecated Use
1251         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
1252         * instead
1253         */
1254        @Deprecated
1255        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
1256            "lock_pattern_tactile_feedback_enabled";
1257
1258
1259        /**
1260         * A formatted string of the next alarm that is set, or the empty string
1261         * if there is no alarm set.
1262         */
1263        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
1264
1265        /**
1266         * Scaling factor for fonts, float.
1267         */
1268        public static final String FONT_SCALE = "font_scale";
1269
1270        /**
1271         * Name of an application package to be debugged.
1272         */
1273        public static final String DEBUG_APP = "debug_app";
1274
1275        /**
1276         * If 1, when launching DEBUG_APP it will wait for the debugger before
1277         * starting user code.  If 0, it will run normally.
1278         */
1279        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
1280
1281        /**
1282         * Whether or not to dim the screen. 0=no  1=yes
1283         */
1284        public static final String DIM_SCREEN = "dim_screen";
1285
1286        /**
1287         * The timeout before the screen turns off.
1288         */
1289        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
1290
1291        /**
1292         * If 0, the compatibility mode is off for all applications.
1293         * If 1, older applications run under compatibility mode.
1294         * TODO: remove this settings before code freeze (bug/1907571)
1295         * @hide
1296         */
1297        public static final String COMPATIBILITY_MODE = "compatibility_mode";
1298
1299        /**
1300         * The screen backlight brightness between 0 and 255.
1301         */
1302        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
1303
1304        /**
1305         * Control whether to enable automatic brightness mode.
1306         */
1307        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
1308
1309        /**
1310         * SCREEN_BRIGHTNESS_MODE value for manual mode.
1311         */
1312        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
1313
1314        /**
1315         * SCREEN_BRIGHTNESS_MODE value for manual mode.
1316         */
1317        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
1318
1319        /**
1320         * Control whether the process CPU usage meter should be shown.
1321         */
1322        public static final String SHOW_PROCESSES = "show_processes";
1323
1324        /**
1325         * If 1, the activity manager will aggressively finish activities and
1326         * processes as soon as they are no longer needed.  If 0, the normal
1327         * extended lifetime is used.
1328         */
1329        public static final String ALWAYS_FINISH_ACTIVITIES =
1330                "always_finish_activities";
1331
1332
1333        /**
1334         * Ringer mode. This is used internally, changing this value will not
1335         * change the ringer mode. See AudioManager.
1336         */
1337        public static final String MODE_RINGER = "mode_ringer";
1338
1339        /**
1340         * Determines which streams are affected by ringer mode changes. The
1341         * stream type's bit should be set to 1 if it should be muted when going
1342         * into an inaudible ringer mode.
1343         */
1344        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
1345
1346         /**
1347          * Determines which streams are affected by mute. The
1348          * stream type's bit should be set to 1 if it should be muted when a mute request
1349          * is received.
1350          */
1351         public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
1352
1353        /**
1354         * Whether vibrate is on for different events. This is used internally,
1355         * changing this value will not change the vibrate. See AudioManager.
1356         */
1357        public static final String VIBRATE_ON = "vibrate_on";
1358
1359        /**
1360         * Ringer volume. This is used internally, changing this value will not
1361         * change the volume. See AudioManager.
1362         */
1363        public static final String VOLUME_RING = "volume_ring";
1364
1365        /**
1366         * System/notifications volume. This is used internally, changing this
1367         * value will not change the volume. See AudioManager.
1368         */
1369        public static final String VOLUME_SYSTEM = "volume_system";
1370
1371        /**
1372         * Voice call volume. This is used internally, changing this value will
1373         * not change the volume. See AudioManager.
1374         */
1375        public static final String VOLUME_VOICE = "volume_voice";
1376
1377        /**
1378         * Music/media/gaming volume. This is used internally, changing this
1379         * value will not change the volume. See AudioManager.
1380         */
1381        public static final String VOLUME_MUSIC = "volume_music";
1382
1383        /**
1384         * Alarm volume. This is used internally, changing this
1385         * value will not change the volume. See AudioManager.
1386         */
1387        public static final String VOLUME_ALARM = "volume_alarm";
1388
1389        /**
1390         * Notification volume. This is used internally, changing this
1391         * value will not change the volume. See AudioManager.
1392         */
1393        public static final String VOLUME_NOTIFICATION = "volume_notification";
1394
1395        /**
1396         * Bluetooth Headset volume. This is used internally, changing this value will
1397         * not change the volume. See AudioManager.
1398         */
1399        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
1400
1401        /**
1402         * Whether the notifications should use the ring volume (value of 1) or
1403         * a separate notification volume (value of 0). In most cases, users
1404         * will have this enabled so the notification and ringer volumes will be
1405         * the same. However, power users can disable this and use the separate
1406         * notification volume control.
1407         * <p>
1408         * Note: This is a one-off setting that will be removed in the future
1409         * when there is profile support. For this reason, it is kept hidden
1410         * from the public APIs.
1411         *
1412         * @hide
1413         */
1414        public static final String NOTIFICATIONS_USE_RING_VOLUME =
1415            "notifications_use_ring_volume";
1416
1417        /**
1418         * Whether silent mode should allow vibration feedback. This is used
1419         * internally in AudioService and the Sound settings activity to
1420         * coordinate decoupling of vibrate and silent modes. This setting
1421         * will likely be removed in a future release with support for
1422         * audio/vibe feedback profiles.
1423         *
1424         * @hide
1425         */
1426        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
1427
1428        /**
1429         * The mapping of stream type (integer) to its setting.
1430         */
1431        public static final String[] VOLUME_SETTINGS = {
1432            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
1433            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
1434        };
1435
1436        /**
1437         * Appended to various volume related settings to record the previous
1438         * values before they the settings were affected by a silent/vibrate
1439         * ringer mode change.
1440         */
1441        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
1442
1443        /**
1444         * Persistent store for the system-wide default ringtone URI.
1445         * <p>
1446         * If you need to play the default ringtone at any given time, it is recommended
1447         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
1448         * to the set default ringtone at the time of playing.
1449         *
1450         * @see #DEFAULT_RINGTONE_URI
1451         */
1452        public static final String RINGTONE = "ringtone";
1453
1454        /**
1455         * A {@link Uri} that will point to the current default ringtone at any
1456         * given time.
1457         * <p>
1458         * If the current default ringtone is in the DRM provider and the caller
1459         * does not have permission, the exception will be a
1460         * FileNotFoundException.
1461         */
1462        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
1463
1464        /**
1465         * Persistent store for the system-wide default notification sound.
1466         *
1467         * @see #RINGTONE
1468         * @see #DEFAULT_NOTIFICATION_URI
1469         */
1470        public static final String NOTIFICATION_SOUND = "notification_sound";
1471
1472        /**
1473         * A {@link Uri} that will point to the current default notification
1474         * sound at any given time.
1475         *
1476         * @see #DEFAULT_RINGTONE_URI
1477         */
1478        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
1479
1480        /**
1481         * Persistent store for the system-wide default alarm alert.
1482         *
1483         * @see #RINGTONE
1484         * @see #DEFAULT_ALARM_ALERT_URI
1485         */
1486        public static final String ALARM_ALERT = "alarm_alert";
1487
1488        /**
1489         * A {@link Uri} that will point to the current default alarm alert at
1490         * any given time.
1491         *
1492         * @see #DEFAULT_ALARM_ALERT_URI
1493         */
1494        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
1495
1496        /**
1497         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
1498         */
1499        public static final String TEXT_AUTO_REPLACE = "auto_replace";
1500
1501        /**
1502         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
1503         */
1504        public static final String TEXT_AUTO_CAPS = "auto_caps";
1505
1506        /**
1507         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
1508         * feature converts two spaces to a "." and space.
1509         */
1510        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
1511
1512        /**
1513         * Setting to showing password characters in text editors. 1 = On, 0 = Off
1514         */
1515        public static final String TEXT_SHOW_PASSWORD = "show_password";
1516
1517        public static final String SHOW_GTALK_SERVICE_STATUS =
1518                "SHOW_GTALK_SERVICE_STATUS";
1519
1520        /**
1521         * Name of activity to use for wallpaper on the home screen.
1522         */
1523        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
1524
1525        /**
1526         * Value to specify if the user prefers the date, time and time zone
1527         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
1528         */
1529        public static final String AUTO_TIME = "auto_time";
1530
1531        /**
1532         * Value to specify if the user prefers the time zone
1533         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
1534         */
1535        public static final String AUTO_TIME_ZONE = "auto_time_zone";
1536
1537        /**
1538         * Display times as 12 or 24 hours
1539         *   12
1540         *   24
1541         */
1542        public static final String TIME_12_24 = "time_12_24";
1543
1544        /**
1545         * Date format string
1546         *   mm/dd/yyyy
1547         *   dd/mm/yyyy
1548         *   yyyy/mm/dd
1549         */
1550        public static final String DATE_FORMAT = "date_format";
1551
1552        /**
1553         * Whether the setup wizard has been run before (on first boot), or if
1554         * it still needs to be run.
1555         *
1556         * nonzero = it has been run in the past
1557         * 0 = it has not been run in the past
1558         */
1559        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
1560
1561        /**
1562         * Scaling factor for normal window animations. Setting to 0 will disable window
1563         * animations.
1564         */
1565        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
1566
1567        /**
1568         * Scaling factor for activity transition animations. Setting to 0 will disable window
1569         * animations.
1570         */
1571        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
1572
1573        /**
1574         * Scaling factor for normal window animations. Setting to 0 will disable window
1575         * animations.
1576         * @hide
1577         */
1578        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
1579
1580        /**
1581         * Control whether the accelerometer will be used to change screen
1582         * orientation.  If 0, it will not be used unless explicitly requested
1583         * by the application; if 1, it will be used by default unless explicitly
1584         * disabled by the application.
1585         */
1586        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
1587
1588        /**
1589         * Default screen rotation when no other policy applies.
1590         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
1591         * preference, this rotation value will be used. Must be one of the
1592         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
1593         *
1594         * @see Display#getRotation
1595         */
1596        public static final String USER_ROTATION = "user_rotation";
1597
1598        /**
1599         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
1600         * boolean (1 or 0).
1601         */
1602        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
1603
1604        /**
1605         * CDMA only settings
1606         * DTMF tone type played by the dialer when dialing.
1607         *                 0 = Normal
1608         *                 1 = Long
1609         * @hide
1610         */
1611        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
1612
1613        /**
1614         * CDMA only settings
1615         * Emergency Tone  0 = Off
1616         *                 1 = Alert
1617         *                 2 = Vibrate
1618         * @hide
1619         */
1620        public static final String EMERGENCY_TONE = "emergency_tone";
1621
1622        /**
1623         * CDMA only settings
1624         * Whether the auto retry is enabled. The value is
1625         * boolean (1 or 0).
1626         * @hide
1627         */
1628        public static final String CALL_AUTO_RETRY = "call_auto_retry";
1629
1630        /**
1631         * Whether the hearing aid is enabled. The value is
1632         * boolean (1 or 0).
1633         * @hide
1634         */
1635        public static final String HEARING_AID = "hearing_aid";
1636
1637        /**
1638         * CDMA only settings
1639         * TTY Mode
1640         * 0 = OFF
1641         * 1 = FULL
1642         * 2 = VCO
1643         * 3 = HCO
1644         * @hide
1645         */
1646        public static final String TTY_MODE = "tty_mode";
1647
1648        /**
1649         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
1650         * boolean (1 or 0).
1651         */
1652        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
1653
1654        /**
1655         * Whether the haptic feedback (long presses, ...) are enabled. The value is
1656         * boolean (1 or 0).
1657         */
1658        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
1659
1660        /**
1661         * @deprecated Each application that shows web suggestions should have its own
1662         * setting for this.
1663         */
1664        @Deprecated
1665        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
1666
1667        /**
1668         * Whether the notification LED should repeatedly flash when a notification is
1669         * pending. The value is boolean (1 or 0).
1670         * @hide
1671         */
1672        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
1673
1674        /**
1675         * Show pointer location on screen?
1676         * 0 = no
1677         * 1 = yes
1678         * @hide
1679         */
1680        public static final String POINTER_LOCATION = "pointer_location";
1681
1682        /**
1683         * Whether to play a sound for low-battery alerts.
1684         * @hide
1685         */
1686        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
1687
1688        /**
1689         * Whether to play a sound for dock events.
1690         * @hide
1691         */
1692        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
1693
1694        /**
1695         * Whether to play sounds when the keyguard is shown and dismissed.
1696         * @hide
1697         */
1698        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
1699
1700        /**
1701         * URI for the low battery sound file.
1702         * @hide
1703         */
1704        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
1705
1706        /**
1707         * URI for the desk dock "in" event sound.
1708         * @hide
1709         */
1710        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
1711
1712        /**
1713         * URI for the desk dock "out" event sound.
1714         * @hide
1715         */
1716        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
1717
1718        /**
1719         * URI for the car dock "in" event sound.
1720         * @hide
1721         */
1722        public static final String CAR_DOCK_SOUND = "car_dock_sound";
1723
1724        /**
1725         * URI for the car dock "out" event sound.
1726         * @hide
1727         */
1728        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
1729
1730        /**
1731         * URI for the "device locked" (keyguard shown) sound.
1732         * @hide
1733         */
1734        public static final String LOCK_SOUND = "lock_sound";
1735
1736        /**
1737         * URI for the "device unlocked" (keyguard dismissed) sound.
1738         * @hide
1739         */
1740        public static final String UNLOCK_SOUND = "unlock_sound";
1741
1742        /**
1743         * True if we should appear as a PTP device instead of MTP.
1744         * @hide
1745         */
1746        public static final String USE_PTP_INTERFACE = "use_ptp_interface";
1747
1748        /**
1749         * Receive incoming SIP calls?
1750         * 0 = no
1751         * 1 = yes
1752         * @hide
1753         */
1754        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
1755
1756        /**
1757         * Call Preference String.
1758         * "SIP_ALWAYS" : Always use SIP with network access
1759         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
1760         * "SIP_ASK_ME_EACH_TIME" : Always ask me each time
1761         * @hide
1762         */
1763        public static final String SIP_CALL_OPTIONS = "sip_call_options";
1764
1765        /**
1766         * One of the sip call options: Always use SIP with network access.
1767         * @hide
1768         */
1769        public static final String SIP_ALWAYS = "SIP_ALWAYS";
1770
1771        /**
1772         * One of the sip call options: Only if destination is a SIP address.
1773         * @hide
1774         */
1775        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
1776
1777        /**
1778         * One of the sip call options: Always ask me each time.
1779         * @hide
1780         */
1781        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
1782
1783        /**
1784         * Settings to backup. This is here so that it's in the same place as the settings
1785         * keys and easy to update.
1786         * @hide
1787         */
1788        public static final String[] SETTINGS_TO_BACKUP = {
1789            STAY_ON_WHILE_PLUGGED_IN,
1790            WIFI_SLEEP_POLICY,
1791            WIFI_USE_STATIC_IP,
1792            WIFI_STATIC_IP,
1793            WIFI_STATIC_GATEWAY,
1794            WIFI_STATIC_NETMASK,
1795            WIFI_STATIC_DNS1,
1796            WIFI_STATIC_DNS2,
1797            BLUETOOTH_DISCOVERABILITY,
1798            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
1799            DIM_SCREEN,
1800            SCREEN_OFF_TIMEOUT,
1801            SCREEN_BRIGHTNESS,
1802            SCREEN_BRIGHTNESS_MODE,
1803            VIBRATE_ON,
1804            MODE_RINGER,
1805            MODE_RINGER_STREAMS_AFFECTED,
1806            MUTE_STREAMS_AFFECTED,
1807            VOLUME_VOICE,
1808            VOLUME_SYSTEM,
1809            VOLUME_RING,
1810            VOLUME_MUSIC,
1811            VOLUME_ALARM,
1812            VOLUME_NOTIFICATION,
1813            VOLUME_BLUETOOTH_SCO,
1814            VOLUME_VOICE + APPEND_FOR_LAST_AUDIBLE,
1815            VOLUME_SYSTEM + APPEND_FOR_LAST_AUDIBLE,
1816            VOLUME_RING + APPEND_FOR_LAST_AUDIBLE,
1817            VOLUME_MUSIC + APPEND_FOR_LAST_AUDIBLE,
1818            VOLUME_ALARM + APPEND_FOR_LAST_AUDIBLE,
1819            VOLUME_NOTIFICATION + APPEND_FOR_LAST_AUDIBLE,
1820            VOLUME_BLUETOOTH_SCO + APPEND_FOR_LAST_AUDIBLE,
1821            VIBRATE_IN_SILENT,
1822            TEXT_AUTO_REPLACE,
1823            TEXT_AUTO_CAPS,
1824            TEXT_AUTO_PUNCTUATE,
1825            TEXT_SHOW_PASSWORD,
1826            AUTO_TIME,
1827            AUTO_TIME_ZONE,
1828            TIME_12_24,
1829            DATE_FORMAT,
1830            ACCELEROMETER_ROTATION,
1831            USER_ROTATION,
1832            DTMF_TONE_WHEN_DIALING,
1833            DTMF_TONE_TYPE_WHEN_DIALING,
1834            EMERGENCY_TONE,
1835            CALL_AUTO_RETRY,
1836            HEARING_AID,
1837            TTY_MODE,
1838            SOUND_EFFECTS_ENABLED,
1839            HAPTIC_FEEDBACK_ENABLED,
1840            POWER_SOUNDS_ENABLED,
1841            DOCK_SOUNDS_ENABLED,
1842            LOCKSCREEN_SOUNDS_ENABLED,
1843            SHOW_WEB_SUGGESTIONS,
1844            NOTIFICATION_LIGHT_PULSE,
1845            USE_PTP_INTERFACE,
1846            SIP_CALL_OPTIONS,
1847            SIP_RECEIVE_CALLS,
1848        };
1849
1850        // Settings moved to Settings.Secure
1851
1852        /**
1853         * @deprecated Use {@link android.provider.Settings.Secure#ADB_ENABLED}
1854         * instead
1855         */
1856        @Deprecated
1857        public static final String ADB_ENABLED = Secure.ADB_ENABLED;
1858
1859        /**
1860         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
1861         */
1862        @Deprecated
1863        public static final String ANDROID_ID = Secure.ANDROID_ID;
1864
1865        /**
1866         * @deprecated Use {@link android.provider.Settings.Secure#BLUETOOTH_ON} instead
1867         */
1868        @Deprecated
1869        public static final String BLUETOOTH_ON = Secure.BLUETOOTH_ON;
1870
1871        /**
1872         * @deprecated Use {@link android.provider.Settings.Secure#DATA_ROAMING} instead
1873         */
1874        @Deprecated
1875        public static final String DATA_ROAMING = Secure.DATA_ROAMING;
1876
1877        /**
1878         * @deprecated Use {@link android.provider.Settings.Secure#DEVICE_PROVISIONED} instead
1879         */
1880        @Deprecated
1881        public static final String DEVICE_PROVISIONED = Secure.DEVICE_PROVISIONED;
1882
1883        /**
1884         * @deprecated Use {@link android.provider.Settings.Secure#HTTP_PROXY} instead
1885         */
1886        @Deprecated
1887        public static final String HTTP_PROXY = Secure.HTTP_PROXY;
1888
1889        /**
1890         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
1891         */
1892        @Deprecated
1893        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
1894
1895        /**
1896         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
1897         * instead
1898         */
1899        @Deprecated
1900        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
1901
1902        /**
1903         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
1904         */
1905        @Deprecated
1906        public static final String LOGGING_ID = Secure.LOGGING_ID;
1907
1908        /**
1909         * @deprecated Use {@link android.provider.Settings.Secure#NETWORK_PREFERENCE} instead
1910         */
1911        @Deprecated
1912        public static final String NETWORK_PREFERENCE = Secure.NETWORK_PREFERENCE;
1913
1914        /**
1915         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
1916         * instead
1917         */
1918        @Deprecated
1919        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
1920
1921        /**
1922         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
1923         * instead
1924         */
1925        @Deprecated
1926        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
1927
1928        /**
1929         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
1930         * instead
1931         */
1932        @Deprecated
1933        public static final String PARENTAL_CONTROL_REDIRECT_URL =
1934            Secure.PARENTAL_CONTROL_REDIRECT_URL;
1935
1936        /**
1937         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
1938         */
1939        @Deprecated
1940        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
1941
1942        /**
1943         * @deprecated Use {@link android.provider.Settings.Secure#USB_MASS_STORAGE_ENABLED} instead
1944         */
1945        @Deprecated
1946        public static final String USB_MASS_STORAGE_ENABLED = Secure.USB_MASS_STORAGE_ENABLED;
1947
1948        /**
1949         * @deprecated Use {@link android.provider.Settings.Secure#USE_GOOGLE_MAIL} instead
1950         */
1951        @Deprecated
1952        public static final String USE_GOOGLE_MAIL = Secure.USE_GOOGLE_MAIL;
1953
1954       /**
1955         * @deprecated Use
1956         * {@link android.provider.Settings.Secure#WIFI_MAX_DHCP_RETRY_COUNT} instead
1957         */
1958        @Deprecated
1959        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Secure.WIFI_MAX_DHCP_RETRY_COUNT;
1960
1961        /**
1962         * @deprecated Use
1963         * {@link android.provider.Settings.Secure#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
1964         */
1965        @Deprecated
1966        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
1967                Secure.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
1968
1969        /**
1970         * @deprecated Use
1971         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
1972         */
1973        @Deprecated
1974        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
1975            Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
1976
1977        /**
1978         * @deprecated Use
1979         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
1980         */
1981        @Deprecated
1982        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
1983            Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
1984
1985        /**
1986         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_NUM_OPEN_NETWORKS_KEPT}
1987         * instead
1988         */
1989        @Deprecated
1990        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Secure.WIFI_NUM_OPEN_NETWORKS_KEPT;
1991
1992        /**
1993         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_ON} instead
1994         */
1995        @Deprecated
1996        public static final String WIFI_ON = Secure.WIFI_ON;
1997
1998        /**
1999         * @deprecated Use
2000         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
2001         * instead
2002         */
2003        @Deprecated
2004        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
2005                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
2006
2007        /**
2008         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
2009         */
2010        @Deprecated
2011        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
2012
2013        /**
2014         * @deprecated Use
2015         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
2016         */
2017        @Deprecated
2018        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
2019                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
2020
2021        /**
2022         * @deprecated Use
2023         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
2024         */
2025        @Deprecated
2026        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
2027                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
2028
2029        /**
2030         * @deprecated Use
2031         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
2032         * instead
2033         */
2034        @Deprecated
2035        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
2036                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
2037
2038        /**
2039         * @deprecated Use
2040         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
2041         */
2042        @Deprecated
2043        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
2044            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
2045
2046        /**
2047         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
2048         * instead
2049         */
2050        @Deprecated
2051        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
2052
2053        /**
2054         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ON} instead
2055         */
2056        @Deprecated
2057        public static final String WIFI_WATCHDOG_ON = Secure.WIFI_WATCHDOG_ON;
2058
2059        /**
2060         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
2061         */
2062        @Deprecated
2063        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
2064
2065        /**
2066         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
2067         * instead
2068         */
2069        @Deprecated
2070        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
2071
2072        /**
2073         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
2074         * instead
2075         */
2076        @Deprecated
2077        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
2078            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
2079    }
2080
2081    /**
2082     * Secure system settings, containing system preferences that applications
2083     * can read but are not allowed to write.  These are for preferences that
2084     * the user must explicitly modify through the system UI or specialized
2085     * APIs for those values, not modified directly by applications.
2086     */
2087    public static final class Secure extends NameValueTable {
2088        public static final String SYS_PROP_SETTING_VERSION = "sys.settings_secure_version";
2089
2090        // Populated lazily, guarded by class object:
2091        private static NameValueCache sNameValueCache = null;
2092
2093        /**
2094         * Look up a name in the database.
2095         * @param resolver to access the database with
2096         * @param name to look up in the table
2097         * @return the corresponding value, or null if not present
2098         */
2099        public synchronized static String getString(ContentResolver resolver, String name) {
2100            if (sNameValueCache == null) {
2101                sNameValueCache = new NameValueCache(SYS_PROP_SETTING_VERSION, CONTENT_URI,
2102                                                     CALL_METHOD_GET_SECURE);
2103            }
2104            return sNameValueCache.getString(resolver, name);
2105        }
2106
2107        /**
2108         * Store a name/value pair into the database.
2109         * @param resolver to access the database with
2110         * @param name to store
2111         * @param value to associate with the name
2112         * @return true if the value was set, false on database errors
2113         */
2114        public static boolean putString(ContentResolver resolver,
2115                String name, String value) {
2116            return putString(resolver, CONTENT_URI, name, value);
2117        }
2118
2119        /**
2120         * Construct the content URI for a particular name/value pair,
2121         * useful for monitoring changes with a ContentObserver.
2122         * @param name to look up in the table
2123         * @return the corresponding content URI, or null if not present
2124         */
2125        public static Uri getUriFor(String name) {
2126            return getUriFor(CONTENT_URI, name);
2127        }
2128
2129        /**
2130         * Convenience function for retrieving a single secure settings value
2131         * as an integer.  Note that internally setting values are always
2132         * stored as strings; this function converts the string to an integer
2133         * for you.  The default value will be returned if the setting is
2134         * not defined or not an integer.
2135         *
2136         * @param cr The ContentResolver to access.
2137         * @param name The name of the setting to retrieve.
2138         * @param def Value to return if the setting is not defined.
2139         *
2140         * @return The setting's current value, or 'def' if it is not defined
2141         * or not a valid integer.
2142         */
2143        public static int getInt(ContentResolver cr, String name, int def) {
2144            String v = getString(cr, name);
2145            try {
2146                return v != null ? Integer.parseInt(v) : def;
2147            } catch (NumberFormatException e) {
2148                return def;
2149            }
2150        }
2151
2152        /**
2153         * Convenience function for retrieving a single secure settings value
2154         * as an integer.  Note that internally setting values are always
2155         * stored as strings; this function converts the string to an integer
2156         * for you.
2157         * <p>
2158         * This version does not take a default value.  If the setting has not
2159         * been set, or the string value is not a number,
2160         * it throws {@link SettingNotFoundException}.
2161         *
2162         * @param cr The ContentResolver to access.
2163         * @param name The name of the setting to retrieve.
2164         *
2165         * @throws SettingNotFoundException Thrown if a setting by the given
2166         * name can't be found or the setting value is not an integer.
2167         *
2168         * @return The setting's current value.
2169         */
2170        public static int getInt(ContentResolver cr, String name)
2171                throws SettingNotFoundException {
2172            String v = getString(cr, name);
2173            try {
2174                return Integer.parseInt(v);
2175            } catch (NumberFormatException e) {
2176                throw new SettingNotFoundException(name);
2177            }
2178        }
2179
2180        /**
2181         * Convenience function for updating a single settings value as an
2182         * integer. This will either create a new entry in the table if the
2183         * given name does not exist, or modify the value of the existing row
2184         * with that name.  Note that internally setting values are always
2185         * stored as strings, so this function converts the given value to a
2186         * string before storing it.
2187         *
2188         * @param cr The ContentResolver to access.
2189         * @param name The name of the setting to modify.
2190         * @param value The new value for the setting.
2191         * @return true if the value was set, false on database errors
2192         */
2193        public static boolean putInt(ContentResolver cr, String name, int value) {
2194            return putString(cr, name, Integer.toString(value));
2195        }
2196
2197        /**
2198         * Convenience function for retrieving a single secure settings value
2199         * as a {@code long}.  Note that internally setting values are always
2200         * stored as strings; this function converts the string to a {@code long}
2201         * for you.  The default value will be returned if the setting is
2202         * not defined or not a {@code long}.
2203         *
2204         * @param cr The ContentResolver to access.
2205         * @param name The name of the setting to retrieve.
2206         * @param def Value to return if the setting is not defined.
2207         *
2208         * @return The setting's current value, or 'def' if it is not defined
2209         * or not a valid {@code long}.
2210         */
2211        public static long getLong(ContentResolver cr, String name, long def) {
2212            String valString = getString(cr, name);
2213            long value;
2214            try {
2215                value = valString != null ? Long.parseLong(valString) : def;
2216            } catch (NumberFormatException e) {
2217                value = def;
2218            }
2219            return value;
2220        }
2221
2222        /**
2223         * Convenience function for retrieving a single secure settings value
2224         * as a {@code long}.  Note that internally setting values are always
2225         * stored as strings; this function converts the string to a {@code long}
2226         * for you.
2227         * <p>
2228         * This version does not take a default value.  If the setting has not
2229         * been set, or the string value is not a number,
2230         * it throws {@link SettingNotFoundException}.
2231         *
2232         * @param cr The ContentResolver to access.
2233         * @param name The name of the setting to retrieve.
2234         *
2235         * @return The setting's current value.
2236         * @throws SettingNotFoundException Thrown if a setting by the given
2237         * name can't be found or the setting value is not an integer.
2238         */
2239        public static long getLong(ContentResolver cr, String name)
2240                throws SettingNotFoundException {
2241            String valString = getString(cr, name);
2242            try {
2243                return Long.parseLong(valString);
2244            } catch (NumberFormatException e) {
2245                throw new SettingNotFoundException(name);
2246            }
2247        }
2248
2249        /**
2250         * Convenience function for updating a secure settings value as a long
2251         * integer. This will either create a new entry in the table if the
2252         * given name does not exist, or modify the value of the existing row
2253         * with that name.  Note that internally setting values are always
2254         * stored as strings, so this function converts the given value to a
2255         * string before storing it.
2256         *
2257         * @param cr The ContentResolver to access.
2258         * @param name The name of the setting to modify.
2259         * @param value The new value for the setting.
2260         * @return true if the value was set, false on database errors
2261         */
2262        public static boolean putLong(ContentResolver cr, String name, long value) {
2263            return putString(cr, name, Long.toString(value));
2264        }
2265
2266        /**
2267         * Convenience function for retrieving a single secure settings value
2268         * as a floating point number.  Note that internally setting values are
2269         * always stored as strings; this function converts the string to an
2270         * float for you. The default value will be returned if the setting
2271         * is not defined or not a valid float.
2272         *
2273         * @param cr The ContentResolver to access.
2274         * @param name The name of the setting to retrieve.
2275         * @param def Value to return if the setting is not defined.
2276         *
2277         * @return The setting's current value, or 'def' if it is not defined
2278         * or not a valid float.
2279         */
2280        public static float getFloat(ContentResolver cr, String name, float def) {
2281            String v = getString(cr, name);
2282            try {
2283                return v != null ? Float.parseFloat(v) : def;
2284            } catch (NumberFormatException e) {
2285                return def;
2286            }
2287        }
2288
2289        /**
2290         * Convenience function for retrieving a single secure settings value
2291         * as a float.  Note that internally setting values are always
2292         * stored as strings; this function converts the string to a float
2293         * for you.
2294         * <p>
2295         * This version does not take a default value.  If the setting has not
2296         * been set, or the string value is not a number,
2297         * it throws {@link SettingNotFoundException}.
2298         *
2299         * @param cr The ContentResolver to access.
2300         * @param name The name of the setting to retrieve.
2301         *
2302         * @throws SettingNotFoundException Thrown if a setting by the given
2303         * name can't be found or the setting value is not a float.
2304         *
2305         * @return The setting's current value.
2306         */
2307        public static float getFloat(ContentResolver cr, String name)
2308                throws SettingNotFoundException {
2309            String v = getString(cr, name);
2310            if (v == null) {
2311                throw new SettingNotFoundException(name);
2312            }
2313            try {
2314                return Float.parseFloat(v);
2315            } catch (NumberFormatException e) {
2316                throw new SettingNotFoundException(name);
2317            }
2318        }
2319
2320        /**
2321         * Convenience function for updating a single settings value as a
2322         * floating point number. This will either create a new entry in the
2323         * table if the given name does not exist, or modify the value of the
2324         * existing row with that name.  Note that internally setting values
2325         * are always stored as strings, so this function converts the given
2326         * value to a string before storing it.
2327         *
2328         * @param cr The ContentResolver to access.
2329         * @param name The name of the setting to modify.
2330         * @param value The new value for the setting.
2331         * @return true if the value was set, false on database errors
2332         */
2333        public static boolean putFloat(ContentResolver cr, String name, float value) {
2334            return putString(cr, name, Float.toString(value));
2335        }
2336
2337        /**
2338         * The content:// style URL for this table
2339         */
2340        public static final Uri CONTENT_URI =
2341            Uri.parse("content://" + AUTHORITY + "/secure");
2342
2343        /**
2344         * Whether ADB is enabled.
2345         */
2346        public static final String ADB_ENABLED = "adb_enabled";
2347
2348        /**
2349         * Setting to allow mock locations and location provider status to be injected into the
2350         * LocationManager service for testing purposes during application development.  These
2351         * locations and status values  override actual location and status information generated
2352         * by network, gps, or other location providers.
2353         */
2354        public static final String ALLOW_MOCK_LOCATION = "mock_location";
2355
2356        /**
2357         * A 64-bit number (as a hex string) that is randomly
2358         * generated on the device's first boot and should remain
2359         * constant for the lifetime of the device.  (The value may
2360         * change if a factory reset is performed on the device.)
2361         */
2362        public static final String ANDROID_ID = "android_id";
2363
2364        /**
2365         * Whether bluetooth is enabled/disabled
2366         * 0=disabled. 1=enabled.
2367         */
2368        public static final String BLUETOOTH_ON = "bluetooth_on";
2369
2370        /**
2371         * Get the key that retrieves a bluetooth headset's priority.
2372         * @hide
2373         */
2374        public static final String getBluetoothHeadsetPriorityKey(String address) {
2375            return ("bluetooth_headset_priority_" + address.toUpperCase());
2376        }
2377
2378        /**
2379         * Get the key that retrieves a bluetooth a2dp sink's priority.
2380         * @hide
2381         */
2382        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
2383            return ("bluetooth_a2dp_sink_priority_" + address.toUpperCase());
2384        }
2385
2386        /**
2387         * Get the key that retrieves a bluetooth Input Device's priority.
2388         * @hide
2389         */
2390        public static final String getBluetoothInputDevicePriorityKey(String address) {
2391            return ("bluetooth_input_device_priority_" + address.toUpperCase());
2392        }
2393
2394        /**
2395         * Whether or not data roaming is enabled. (0 = false, 1 = true)
2396         */
2397        public static final String DATA_ROAMING = "data_roaming";
2398
2399        /**
2400         * Setting to record the input method used by default, holding the ID
2401         * of the desired method.
2402         */
2403        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
2404
2405        /**
2406         * Setting to record the input method subtype used by default, holding the ID
2407         * of the desired method.
2408         */
2409        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
2410                "selected_input_method_subtype";
2411
2412        /**
2413         * Setting to record the history of input method subtype, holding the pair of ID of IME
2414         * and its last used subtype.
2415         * @hide
2416         */
2417        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
2418                "input_methods_subtype_history";
2419
2420        /**
2421         * Setting to record the visibility of input method selector
2422         */
2423        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
2424                "input_method_selector_visibility";
2425
2426        /**
2427         * Whether the device has been provisioned (0 = false, 1 = true)
2428         */
2429        public static final String DEVICE_PROVISIONED = "device_provisioned";
2430
2431        /**
2432         * List of input methods that are currently enabled.  This is a string
2433         * containing the IDs of all enabled input methods, each ID separated
2434         * by ':'.
2435         */
2436        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
2437
2438        /**
2439         * List of system input methods that are currently disabled.  This is a string
2440         * containing the IDs of all disabled input methods, each ID separated
2441         * by ':'.
2442         * @hide
2443         */
2444        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
2445
2446        /**
2447         * Host name and port for global http proxy.  Uses ':' seperator for between host and port
2448         * TODO - deprecate in favor of global_http_proxy_host, etc
2449         */
2450        public static final String HTTP_PROXY = "http_proxy";
2451
2452        /**
2453         * Host name for global http proxy.  Set via ConnectivityManager.
2454         * @hide
2455         */
2456        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
2457
2458        /**
2459         * Integer host port for global http proxy.  Set via ConnectivityManager.
2460         * @hide
2461         */
2462        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
2463
2464        /**
2465         * Exclusion list for global proxy. This string contains a list of comma-separated
2466         * domains where the global proxy does not apply. Domains should be listed in a comma-
2467         * separated list. Example of acceptable formats: ".domain1.com,my.domain2.com"
2468         * Use ConnectivityManager to set/get.
2469         * @hide
2470         */
2471        public static final String GLOBAL_HTTP_PROXY_EXCLUSION_LIST =
2472                "global_http_proxy_exclusion_list";
2473
2474        /**
2475         * Enables the UI setting to allow the user to specify the global HTTP proxy
2476         * and associated exclusion list.
2477         * @hide
2478         */
2479        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
2480
2481        /**
2482         * Setting for default DNS in case nobody suggests one
2483         * @hide
2484         */
2485        public static final String DEFAULT_DNS_SERVER = "default_dns_server";
2486
2487        /**
2488         * Whether the package installer should allow installation of apps downloaded from
2489         * sources other than the Android Market (vending machine).
2490         *
2491         * 1 = allow installing from other sources
2492         * 0 = only allow installing from the Android Market
2493         */
2494        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
2495
2496        /**
2497         * Comma-separated list of location providers that activities may access.
2498         */
2499        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
2500
2501        /**
2502         * Whether autolock is enabled (0 = false, 1 = true)
2503         */
2504        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
2505
2506        /**
2507         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
2508         */
2509        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
2510
2511        /**
2512         * Whether lock pattern will vibrate as user enters (0 = false, 1 = true)
2513         */
2514        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
2515            "lock_pattern_tactile_feedback_enabled";
2516
2517        /**
2518         * This preference allows the device to be locked given time after screen goes off,
2519         * subject to current DeviceAdmin policy limits.
2520         * @hide
2521         */
2522        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
2523
2524
2525        /**
2526         * This preference contains the string that shows for owner info on LockScren.
2527         * @hide
2528         */
2529        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
2530
2531        /**
2532         * This preference enables showing the owner info on LockScren.
2533         * @hide
2534         */
2535        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
2536            "lock_screen_owner_info_enabled";
2537
2538        /**
2539         * Whether assisted GPS should be enabled or not.
2540         * @hide
2541         */
2542        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
2543
2544        /**
2545         * The Logging ID (a unique 64-bit value) as a hex string.
2546         * Used as a pseudonymous identifier for logging.
2547         * @deprecated This identifier is poorly initialized and has
2548         * many collisions.  It should not be used.
2549         */
2550        @Deprecated
2551        public static final String LOGGING_ID = "logging_id";
2552
2553        /**
2554         * User preference for which network(s) should be used. Only the
2555         * connectivity service should touch this.
2556         */
2557        public static final String NETWORK_PREFERENCE = "network_preference";
2558
2559        /**
2560         * Used to disable Tethering on a device - defaults to true
2561         * @hide
2562         */
2563        public static final String TETHER_SUPPORTED = "tether_supported";
2564
2565        /**
2566         * Used to require DUN APN on the device or not - defaults to a build config value
2567         * which defaults to false
2568         * @hide
2569         */
2570        public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
2571
2572        /**
2573         * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
2574         * corresponding build config values are set it will override the APN DB
2575         * values.
2576         * Consists of a comma seperated list of strings:
2577         * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
2578         * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
2579         * @hide
2580         */
2581        public static final String TETHER_DUN_APN = "tether_dun_apn";
2582
2583        /**
2584         * No longer supported.
2585         */
2586        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
2587
2588        /**
2589         * No longer supported.
2590         */
2591        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
2592
2593        /**
2594         * No longer supported.
2595         */
2596        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
2597
2598        /**
2599         * A positive value indicates how often the SamplingProfiler
2600         * should take snapshots. Zero value means SamplingProfiler
2601         * is disabled.
2602         *
2603         * @hide
2604         */
2605        public static final String SAMPLING_PROFILER_MS = "sampling_profiler_ms";
2606
2607        /**
2608         * Settings classname to launch when Settings is clicked from All
2609         * Applications.  Needed because of user testing between the old
2610         * and new Settings apps.
2611         */
2612        // TODO: 881807
2613        public static final String SETTINGS_CLASSNAME = "settings_classname";
2614
2615        /**
2616         * USB Mass Storage Enabled
2617         */
2618        public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
2619
2620        /**
2621         * If this setting is set (to anything), then all references
2622         * to Gmail on the device must change to Google Mail.
2623         */
2624        public static final String USE_GOOGLE_MAIL = "use_google_mail";
2625
2626        /**
2627         * If accessibility is enabled.
2628         */
2629        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
2630
2631        /**
2632         * List of the enabled accessibility providers.
2633         */
2634        public static final String ENABLED_ACCESSIBILITY_SERVICES =
2635            "enabled_accessibility_services";
2636
2637        /**
2638         * If injection of accessibility enhancing JavaScript scripts
2639         * is enabled.
2640         * <p>
2641         *   Note: Accessibility injecting scripts are served by the
2642         *   Google infrastructure and enable users with disabilities to
2643         *   efficiantly navigate in and explore web content.
2644         * </p>
2645         * <p>
2646         *   This property represents a boolean value.
2647         * </p>
2648         * @hide
2649         */
2650        public static final String ACCESSIBILITY_SCRIPT_INJECTION =
2651            "accessibility_script_injection";
2652
2653        /**
2654         * Key bindings for navigation in built-in accessibility support for web content.
2655         * <p>
2656         *   Note: These key bindings are for the built-in accessibility navigation for
2657         *   web content which is used as a fall back solution if JavaScript in a WebView
2658         *   is not enabled or the user has not opted-in script injection from Google.
2659         * </p>
2660         * <p>
2661         *   The bindings are separated by semi-colon. A binding is a mapping from
2662         *   a key to a sequence of actions (for more details look at
2663         *   android.webkit.AccessibilityInjector). A key is represented as the hexademical
2664         *   string representation of an integer obtained from a meta state (optional) shifted
2665         *   sixteen times left and bitwise ored with a key code. An action is represented
2666         *   as a hexademical string representation of an integer where the first two digits
2667         *   are navigation action index, the second, the third, and the fourth digit pairs
2668         *   represent the action arguments. The separate actions in a binding are colon
2669         *   separated. The key and the action sequence it maps to are separated by equals.
2670         * </p>
2671         * <p>
2672         *   For example, the binding below maps the DPAD right button to traverse the
2673         *   current navigation axis once without firing an accessibility event and to
2674         *   perform the same traversal again but to fire an event:
2675         *   <code>
2676         *     0x16=0x01000100:0x01000101;
2677         *   </code>
2678         * </p>
2679         * <p>
2680         *   The goal of this binding is to enable dynamic rebinding of keys to
2681         *   navigation actions for web content without requiring a framework change.
2682         * </p>
2683         * <p>
2684         *   This property represents a string value.
2685         * </p>
2686         * @hide
2687         */
2688        public static final String ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS =
2689            "accessibility_web_content_key_bindings";
2690
2691        /**
2692         * Setting to always use the default text-to-speech settings regardless
2693         * of the application settings.
2694         * 1 = override application settings,
2695         * 0 = use application settings (if specified).
2696         */
2697        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
2698
2699        /**
2700         * Default text-to-speech engine speech rate. 100 = 1x
2701         */
2702        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
2703
2704        /**
2705         * Default text-to-speech engine pitch. 100 = 1x
2706         */
2707        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
2708
2709        /**
2710         * Default text-to-speech engine.
2711         */
2712        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
2713
2714        /**
2715         * Default text-to-speech language.
2716         */
2717        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
2718
2719        /**
2720         * Default text-to-speech country.
2721         */
2722        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
2723
2724        /**
2725         * Default text-to-speech locale variant.
2726         */
2727        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
2728
2729        /**
2730         * Space delimited list of plugin packages that are enabled.
2731         */
2732        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
2733
2734        /**
2735         * Whether to notify the user of open networks.
2736         * <p>
2737         * If not connected and the scan results have an open network, we will
2738         * put this notification up. If we attempt to connect to a network or
2739         * the open network(s) disappear, we remove the notification. When we
2740         * show the notification, we will not show it again for
2741         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
2742         */
2743        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
2744                "wifi_networks_available_notification_on";
2745
2746        /**
2747         * Delay (in seconds) before repeating the Wi-Fi networks available notification.
2748         * Connecting to a network will reset the timer.
2749         */
2750        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
2751                "wifi_networks_available_repeat_delay";
2752
2753        /**
2754         * 802.11 country code in ISO 3166 format
2755         * @hide
2756         */
2757        public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
2758
2759
2760        /**
2761         * When the number of open networks exceeds this number, the
2762         * least-recently-used excess networks will be removed.
2763         */
2764        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
2765
2766        /**
2767         * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
2768         */
2769        public static final String WIFI_ON = "wifi_on";
2770
2771        /**
2772         * Used to save the Wifi_ON state prior to tethering.
2773         * This state will be checked to restore Wifi after
2774         * the user turns off tethering.
2775         *
2776         * @hide
2777         */
2778        public static final String WIFI_SAVED_STATE = "wifi_saved_state";
2779
2780        /**
2781         * AP SSID
2782         *
2783         * @hide
2784         */
2785        public static final String WIFI_AP_SSID = "wifi_ap_ssid";
2786
2787        /**
2788         * AP security
2789         *
2790         * @hide
2791         */
2792        public static final String WIFI_AP_SECURITY = "wifi_ap_security";
2793
2794        /**
2795         * AP passphrase
2796         *
2797         * @hide
2798         */
2799        public static final String WIFI_AP_PASSWD = "wifi_ap_passwd";
2800
2801        /**
2802         * The acceptable packet loss percentage (range 0 - 100) before trying
2803         * another AP on the same network.
2804         */
2805        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
2806                "wifi_watchdog_acceptable_packet_loss_percentage";
2807
2808        /**
2809         * The number of access points required for a network in order for the
2810         * watchdog to monitor it.
2811         */
2812        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
2813
2814        /**
2815         * The delay between background checks.
2816         */
2817        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
2818                "wifi_watchdog_background_check_delay_ms";
2819
2820        /**
2821         * Whether the Wi-Fi watchdog is enabled for background checking even
2822         * after it thinks the user has connected to a good access point.
2823         */
2824        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
2825                "wifi_watchdog_background_check_enabled";
2826
2827        /**
2828         * The timeout for a background ping
2829         */
2830        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
2831                "wifi_watchdog_background_check_timeout_ms";
2832
2833        /**
2834         * The number of initial pings to perform that *may* be ignored if they
2835         * fail. Again, if these fail, they will *not* be used in packet loss
2836         * calculation. For example, one network always seemed to time out for
2837         * the first couple pings, so this is set to 3 by default.
2838         */
2839        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
2840            "wifi_watchdog_initial_ignored_ping_count";
2841
2842        /**
2843         * The maximum number of access points (per network) to attempt to test.
2844         * If this number is reached, the watchdog will no longer monitor the
2845         * initial connection state for the network. This is a safeguard for
2846         * networks containing multiple APs whose DNS does not respond to pings.
2847         */
2848        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
2849
2850        /**
2851         * Whether the Wi-Fi watchdog is enabled.
2852         */
2853        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
2854
2855        /**
2856         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
2857         */
2858        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
2859
2860        /**
2861         * The number of pings to test if an access point is a good connection.
2862         */
2863        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
2864
2865        /**
2866         * The delay between pings.
2867         */
2868        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
2869
2870        /**
2871         * The timeout per ping.
2872         */
2873        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
2874
2875        /**
2876         * The maximum number of times we will retry a connection to an access
2877         * point for which we have failed in acquiring an IP address from DHCP.
2878         * A value of N means that we will make N+1 connection attempts in all.
2879         */
2880        public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
2881
2882        /**
2883         * The operational wifi frequency band
2884         * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
2885         * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
2886         * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
2887         *
2888         * @hide
2889         */
2890        public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
2891
2892        /**
2893         * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
2894         * data connectivity to be established after a disconnect from Wi-Fi.
2895         */
2896        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
2897            "wifi_mobile_data_transition_wakelock_timeout_ms";
2898
2899        /**
2900         * Whether background data usage is allowed by the user. See
2901         * ConnectivityManager for more info.
2902         */
2903        public static final String BACKGROUND_DATA = "background_data";
2904
2905        /**
2906         * Origins for which browsers should allow geolocation by default.
2907         * The value is a space-separated list of origins.
2908         */
2909        public static final String ALLOWED_GEOLOCATION_ORIGINS
2910                = "allowed_geolocation_origins";
2911
2912        /**
2913         * Whether mobile data connections are allowed by the user.  See
2914         * ConnectivityManager for more info.
2915         * @hide
2916         */
2917        public static final String MOBILE_DATA = "mobile_data";
2918
2919        /**
2920         * The CDMA roaming mode 0 = Home Networks, CDMA default
2921         *                       1 = Roaming on Affiliated networks
2922         *                       2 = Roaming on any networks
2923         * @hide
2924         */
2925        public static final String CDMA_ROAMING_MODE = "roaming_settings";
2926
2927        /**
2928         * The CDMA subscription mode 0 = RUIM/SIM (default)
2929         *                                1 = NV
2930         * @hide
2931         */
2932        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
2933
2934        /**
2935         * The preferred network mode   7 = Global
2936         *                              6 = EvDo only
2937         *                              5 = CDMA w/o EvDo
2938         *                              4 = CDMA / EvDo auto
2939         *                              3 = GSM / WCDMA auto
2940         *                              2 = WCDMA only
2941         *                              1 = GSM only
2942         *                              0 = GSM / WCDMA preferred
2943         * @hide
2944         */
2945        public static final String PREFERRED_NETWORK_MODE =
2946                "preferred_network_mode";
2947
2948        /**
2949         * The preferred TTY mode     0 = TTy Off, CDMA default
2950         *                            1 = TTY Full
2951         *                            2 = TTY HCO
2952         *                            3 = TTY VCO
2953         * @hide
2954         */
2955        public static final String PREFERRED_TTY_MODE =
2956                "preferred_tty_mode";
2957
2958
2959        /**
2960         * CDMA Cell Broadcast SMS
2961         *                            0 = CDMA Cell Broadcast SMS disabled
2962         *                            1 = CDMA Cell Broadcast SMS enabled
2963         * @hide
2964         */
2965        public static final String CDMA_CELL_BROADCAST_SMS =
2966                "cdma_cell_broadcast_sms";
2967
2968        /**
2969         * The cdma subscription 0 = Subscription from RUIM, when available
2970         *                       1 = Subscription from NV
2971         * @hide
2972         */
2973        public static final String PREFERRED_CDMA_SUBSCRIPTION =
2974                "preferred_cdma_subscription";
2975
2976        /**
2977         * Whether the enhanced voice privacy mode is enabled.
2978         * 0 = normal voice privacy
2979         * 1 = enhanced voice privacy
2980         * @hide
2981         */
2982        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
2983
2984        /**
2985         * Whether the TTY mode mode is enabled.
2986         * 0 = disabled
2987         * 1 = enabled
2988         * @hide
2989         */
2990        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
2991
2992        /**
2993         * Controls whether settings backup is enabled.
2994         * Type: int ( 0 = disabled, 1 = enabled )
2995         * @hide
2996         */
2997        public static final String BACKUP_ENABLED = "backup_enabled";
2998
2999        /**
3000         * Controls whether application data is automatically restored from backup
3001         * at install time.
3002         * Type: int ( 0 = disabled, 1 = enabled )
3003         * @hide
3004         */
3005        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
3006
3007        /**
3008         * Indicates whether settings backup has been fully provisioned.
3009         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
3010         * @hide
3011         */
3012        public static final String BACKUP_PROVISIONED = "backup_provisioned";
3013
3014        /**
3015         * Component of the transport to use for backup/restore.
3016         * @hide
3017         */
3018        public static final String BACKUP_TRANSPORT = "backup_transport";
3019
3020        /**
3021         * Version for which the setup wizard was last shown.  Bumped for
3022         * each release when there is new setup information to show.
3023         * @hide
3024         */
3025        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
3026
3027        /**
3028         * How frequently (in seconds) to check the memory status of the
3029         * device.
3030         * @hide
3031         */
3032        public static final String MEMCHECK_INTERVAL = "memcheck_interval";
3033
3034        /**
3035         * Max frequency (in seconds) to log memory check stats, in realtime
3036         * seconds.  This allows for throttling of logs when the device is
3037         * running for large amounts of time.
3038         * @hide
3039         */
3040        public static final String MEMCHECK_LOG_REALTIME_INTERVAL =
3041                "memcheck_log_realtime_interval";
3042
3043        /**
3044         * Boolean indicating whether rebooting due to system memory checks
3045         * is enabled.
3046         * @hide
3047         */
3048        public static final String MEMCHECK_SYSTEM_ENABLED = "memcheck_system_enabled";
3049
3050        /**
3051         * How many bytes the system process must be below to avoid scheduling
3052         * a soft reboot.  This reboot will happen when it is next determined
3053         * to be a good time.
3054         * @hide
3055         */
3056        public static final String MEMCHECK_SYSTEM_SOFT_THRESHOLD = "memcheck_system_soft";
3057
3058        /**
3059         * How many bytes the system process must be below to avoid scheduling
3060         * a hard reboot.  This reboot will happen immediately.
3061         * @hide
3062         */
3063        public static final String MEMCHECK_SYSTEM_HARD_THRESHOLD = "memcheck_system_hard";
3064
3065        /**
3066         * How many bytes the phone process must be below to avoid scheduling
3067         * a soft restart.  This restart will happen when it is next determined
3068         * to be a good time.
3069         * @hide
3070         */
3071        public static final String MEMCHECK_PHONE_SOFT_THRESHOLD = "memcheck_phone_soft";
3072
3073        /**
3074         * How many bytes the phone process must be below to avoid scheduling
3075         * a hard restart.  This restart will happen immediately.
3076         * @hide
3077         */
3078        public static final String MEMCHECK_PHONE_HARD_THRESHOLD = "memcheck_phone_hard";
3079
3080        /**
3081         * Boolean indicating whether restarting the phone process due to
3082         * memory checks is enabled.
3083         * @hide
3084         */
3085        public static final String MEMCHECK_PHONE_ENABLED = "memcheck_phone_enabled";
3086
3087        /**
3088         * First time during the day it is okay to kill processes
3089         * or reboot the device due to low memory situations.  This number is
3090         * in seconds since midnight.
3091         * @hide
3092         */
3093        public static final String MEMCHECK_EXEC_START_TIME = "memcheck_exec_start_time";
3094
3095        /**
3096         * Last time during the day it is okay to kill processes
3097         * or reboot the device due to low memory situations.  This number is
3098         * in seconds since midnight.
3099         * @hide
3100         */
3101        public static final String MEMCHECK_EXEC_END_TIME = "memcheck_exec_end_time";
3102
3103        /**
3104         * How long the screen must have been off in order to kill processes
3105         * or reboot.  This number is in seconds.  A value of -1 means to
3106         * entirely disregard whether the screen is on.
3107         * @hide
3108         */
3109        public static final String MEMCHECK_MIN_SCREEN_OFF = "memcheck_min_screen_off";
3110
3111        /**
3112         * How much time there must be until the next alarm in order to kill processes
3113         * or reboot.  This number is in seconds.  Note: this value must be
3114         * smaller than {@link #MEMCHECK_RECHECK_INTERVAL} or else it will
3115         * always see an alarm scheduled within its time.
3116         * @hide
3117         */
3118        public static final String MEMCHECK_MIN_ALARM = "memcheck_min_alarm";
3119
3120        /**
3121         * How frequently to check whether it is a good time to restart things,
3122         * if the device is in a bad state.  This number is in seconds.  Note:
3123         * this value must be larger than {@link #MEMCHECK_MIN_ALARM} or else
3124         * the alarm to schedule the recheck will always appear within the
3125         * minimum "do not execute now" time.
3126         * @hide
3127         */
3128        public static final String MEMCHECK_RECHECK_INTERVAL = "memcheck_recheck_interval";
3129
3130        /**
3131         * How frequently (in DAYS) to reboot the device.  If 0, no reboots
3132         * will occur.
3133         * @hide
3134         */
3135        public static final String REBOOT_INTERVAL = "reboot_interval";
3136
3137        /**
3138         * First time during the day it is okay to force a reboot of the
3139         * device (if REBOOT_INTERVAL is set).  This number is
3140         * in seconds since midnight.
3141         * @hide
3142         */
3143        public static final String REBOOT_START_TIME = "reboot_start_time";
3144
3145        /**
3146         * The window of time (in seconds) after each REBOOT_INTERVAL in which
3147         * a reboot can be executed.  If 0, a reboot will always be executed at
3148         * exactly the given time.  Otherwise, it will only be executed if
3149         * the device is idle within the window.
3150         * @hide
3151         */
3152        public static final String REBOOT_WINDOW = "reboot_window";
3153
3154        /**
3155         * Threshold values for the duration and level of a discharge cycle, under
3156         * which we log discharge cycle info.
3157         * @hide
3158         */
3159        public static final String BATTERY_DISCHARGE_DURATION_THRESHOLD =
3160                "battery_discharge_duration_threshold";
3161        /** @hide */
3162        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
3163
3164        /**
3165         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR intents
3166         * on application crashes and ANRs. If this is disabled, the crash/ANR dialog
3167         * will never display the "Report" button.
3168         * Type: int ( 0 = disallow, 1 = allow )
3169         * @hide
3170         */
3171        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
3172
3173        /**
3174         * Nonzero causes Log.wtf() to crash.
3175         * @hide
3176         */
3177        public static final String WTF_IS_FATAL = "wtf_is_fatal";
3178
3179        /**
3180         * Maximum age of entries kept by {@link com.android.internal.os.IDropBoxManagerService}.
3181         * @hide
3182         */
3183        public static final String DROPBOX_AGE_SECONDS =
3184                "dropbox_age_seconds";
3185        /**
3186         * Maximum number of entry files which {@link com.android.internal.os.IDropBoxManagerService} will keep around.
3187         * @hide
3188         */
3189        public static final String DROPBOX_MAX_FILES =
3190                "dropbox_max_files";
3191        /**
3192         * Maximum amount of disk space used by {@link com.android.internal.os.IDropBoxManagerService} no matter what.
3193         * @hide
3194         */
3195        public static final String DROPBOX_QUOTA_KB =
3196                "dropbox_quota_kb";
3197        /**
3198         * Percent of free disk (excluding reserve) which {@link com.android.internal.os.IDropBoxManagerService} will use.
3199         * @hide
3200         */
3201        public static final String DROPBOX_QUOTA_PERCENT =
3202                "dropbox_quota_percent";
3203        /**
3204         * Percent of total disk which {@link com.android.internal.os.IDropBoxManagerService} will never dip into.
3205         * @hide
3206         */
3207        public static final String DROPBOX_RESERVE_PERCENT =
3208                "dropbox_reserve_percent";
3209        /**
3210         * Prefix for per-tag dropbox disable/enable settings.
3211         * @hide
3212         */
3213        public static final String DROPBOX_TAG_PREFIX =
3214                "dropbox:";
3215        /**
3216         * Lines of logcat to include with system crash/ANR/etc. reports,
3217         * as a prefix of the dropbox tag of the report type.
3218         * For example, "logcat_for_system_server_anr" controls the lines
3219         * of logcat captured with system server ANR reports.  0 to disable.
3220         * @hide
3221         */
3222        public static final String ERROR_LOGCAT_PREFIX =
3223                "logcat_for_";
3224
3225
3226        /**
3227         * Screen timeout in milliseconds corresponding to the
3228         * PowerManager's POKE_LOCK_SHORT_TIMEOUT flag (i.e. the fastest
3229         * possible screen timeout behavior.)
3230         * @hide
3231         */
3232        public static final String SHORT_KEYLIGHT_DELAY_MS =
3233                "short_keylight_delay_ms";
3234
3235        /**
3236         * The interval in minutes after which the amount of free storage left on the
3237         * device is logged to the event log
3238         * @hide
3239         */
3240        public static final String SYS_FREE_STORAGE_LOG_INTERVAL =
3241                "sys_free_storage_log_interval";
3242
3243        /**
3244         * Threshold for the amount of change in disk free space required to report the amount of
3245         * free space. Used to prevent spamming the logs when the disk free space isn't changing
3246         * frequently.
3247         * @hide
3248         */
3249        public static final String DISK_FREE_CHANGE_REPORTING_THRESHOLD =
3250                "disk_free_change_reporting_threshold";
3251
3252
3253        /**
3254         * Minimum percentage of free storage on the device that is used to determine if
3255         * the device is running low on storage.  The default is 10.
3256         * <p>Say this value is set to 10, the device is considered running low on storage
3257         * if 90% or more of the device storage is filled up.
3258         * @hide
3259         */
3260        public static final String SYS_STORAGE_THRESHOLD_PERCENTAGE =
3261                "sys_storage_threshold_percentage";
3262
3263        /**
3264         * Maximum byte size of the low storage threshold.  This is to ensure
3265         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in
3266         * an overly large threshold for large storage devices.  Currently this
3267         * must be less than 2GB.  This default is 500MB.
3268         * @hide
3269         */
3270        public static final String SYS_STORAGE_THRESHOLD_MAX_BYTES =
3271                "sys_storage_threshold_max_bytes";
3272
3273        /**
3274         * Minimum bytes of free storage on the device before the data
3275         * partition is considered full. By default, 1 MB is reserved
3276         * to avoid system-wide SQLite disk full exceptions.
3277         * @hide
3278         */
3279        public static final String SYS_STORAGE_FULL_THRESHOLD_BYTES =
3280                "sys_storage_full_threshold_bytes";
3281
3282        /**
3283         * The interval in milliseconds after which Wi-Fi is considered idle.
3284         * When idle, it is possible for the device to be switched from Wi-Fi to
3285         * the mobile data network.
3286         * @hide
3287         */
3288        public static final String WIFI_IDLE_MS = "wifi_idle_ms";
3289
3290        /**
3291         * The interval in milliseconds to issue scans when the driver is
3292         * started. This is necessary to allow wifi to connect to an
3293         * access point when the driver is suspended.
3294         * @hide
3295         */
3296        public static final String WIFI_SCAN_INTERVAL_MS = "wifi_scan_interval_ms";
3297
3298        /**
3299         * The interval in milliseconds at which to check packet counts on the
3300         * mobile data interface when screen is on, to detect possible data
3301         * connection problems.
3302         * @hide
3303         */
3304        public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
3305                "pdp_watchdog_poll_interval_ms";
3306
3307        /**
3308         * The interval in milliseconds at which to check packet counts on the
3309         * mobile data interface when screen is off, to detect possible data
3310         * connection problems.
3311         * @hide
3312         */
3313        public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
3314                "pdp_watchdog_long_poll_interval_ms";
3315
3316        /**
3317         * The interval in milliseconds at which to check packet counts on the
3318         * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
3319         * outgoing packets has been reached without incoming packets.
3320         * @hide
3321         */
3322        public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
3323                "pdp_watchdog_error_poll_interval_ms";
3324
3325        /**
3326         * The number of outgoing packets sent without seeing an incoming packet
3327         * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
3328         * device is logged to the event log
3329         * @hide
3330         */
3331        public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
3332                "pdp_watchdog_trigger_packet_count";
3333
3334        /**
3335         * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
3336         * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
3337         * attempting data connection recovery.
3338         * @hide
3339         */
3340        public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
3341                "pdp_watchdog_error_poll_count";
3342
3343        /**
3344         * The number of failed PDP reset attempts before moving to something more
3345         * drastic: re-registering to the network.
3346         * @hide
3347         */
3348        public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
3349                "pdp_watchdog_max_pdp_reset_fail_count";
3350
3351        /**
3352         * The interval in milliseconds at which to check gprs registration
3353         * after the first registration mismatch of gprs and voice service,
3354         * to detect possible data network registration problems.
3355         *
3356         * @hide
3357         */
3358        public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
3359                "gprs_register_check_period_ms";
3360
3361        /**
3362         * The length of time in milli-seconds that automatic small adjustments to
3363         * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
3364         * @hide
3365         */
3366        public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
3367
3368        /**
3369         * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
3370         * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
3371         * exceeded.
3372         * @hide
3373         */
3374        public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
3375
3376        /**
3377         * The maximum reconnect delay for short network outages or when the network is suspended
3378         * due to phone use.
3379         * @hide
3380         */
3381        public static final String SYNC_MAX_RETRY_DELAY_IN_SECONDS =
3382                "sync_max_retry_delay_in_seconds";
3383
3384        /**
3385         * The interval in milliseconds at which to check the number of SMS sent
3386         * out without asking for use permit, to limit the un-authorized SMS
3387         * usage.
3388         * @hide
3389         */
3390        public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
3391                "sms_outgoing_check_interval_ms";
3392
3393        /**
3394         * The number of outgoing SMS sent without asking for user permit
3395         * (of {@link #SMS_OUTGOING_CHECK_INTERVAL_MS}
3396         * @hide
3397         */
3398        public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
3399                "sms_outgoing_check_max_count";
3400
3401        /**
3402         * The number of promoted sources in GlobalSearch.
3403         * @hide
3404         */
3405        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
3406        /**
3407         * The maximum number of suggestions returned by GlobalSearch.
3408         * @hide
3409         */
3410        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
3411        /**
3412         * The number of suggestions GlobalSearch will ask each non-web search source for.
3413         * @hide
3414         */
3415        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
3416        /**
3417         * The number of suggestions the GlobalSearch will ask the web search source for.
3418         * @hide
3419         */
3420        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
3421                "search_web_results_override_limit";
3422        /**
3423         * The number of milliseconds that GlobalSearch will wait for suggestions from
3424         * promoted sources before continuing with all other sources.
3425         * @hide
3426         */
3427        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
3428                "search_promoted_source_deadline_millis";
3429        /**
3430         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
3431         * @hide
3432         */
3433        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
3434        /**
3435         * The maximum number of milliseconds that GlobalSearch shows the previous results
3436         * after receiving a new query.
3437         * @hide
3438         */
3439        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
3440        /**
3441         * The maximum age of log data used for shortcuts in GlobalSearch.
3442         * @hide
3443         */
3444        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
3445        /**
3446         * The maximum age of log data used for source ranking in GlobalSearch.
3447         * @hide
3448         */
3449        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
3450                "search_max_source_event_age_millis";
3451        /**
3452         * The minimum number of impressions needed to rank a source in GlobalSearch.
3453         * @hide
3454         */
3455        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
3456                "search_min_impressions_for_source_ranking";
3457        /**
3458         * The minimum number of clicks needed to rank a source in GlobalSearch.
3459         * @hide
3460         */
3461        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
3462                "search_min_clicks_for_source_ranking";
3463        /**
3464         * The maximum number of shortcuts shown by GlobalSearch.
3465         * @hide
3466         */
3467        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
3468        /**
3469         * The size of the core thread pool for suggestion queries in GlobalSearch.
3470         * @hide
3471         */
3472        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
3473                "search_query_thread_core_pool_size";
3474        /**
3475         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
3476         * @hide
3477         */
3478        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
3479                "search_query_thread_max_pool_size";
3480        /**
3481         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
3482         * @hide
3483         */
3484        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
3485                "search_shortcut_refresh_core_pool_size";
3486        /**
3487         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
3488         * @hide
3489         */
3490        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
3491                "search_shortcut_refresh_max_pool_size";
3492        /**
3493         * The maximun time that excess threads in the GlobalSeach thread pools will
3494         * wait before terminating.
3495         * @hide
3496         */
3497        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
3498                "search_thread_keepalive_seconds";
3499        /**
3500         * The maximum number of concurrent suggestion queries to each source.
3501         * @hide
3502         */
3503        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
3504                "search_per_source_concurrent_query_limit";
3505
3506        /**
3507         * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
3508         * @hide
3509         */
3510        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
3511
3512        /**
3513         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
3514         * @hide
3515         */
3516        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
3517
3518        /**
3519         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
3520         * @hide
3521         */
3522        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
3523
3524        /**
3525         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
3526         * @hide
3527         */
3528        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
3529
3530        /**
3531         * If nonzero, ANRs in invisible background processes bring up a dialog.
3532         * Otherwise, the process will be silently killed.
3533         * @hide
3534         */
3535        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
3536
3537        /**
3538         * The {@link ComponentName} string of the service to be used as the voice recognition
3539         * service.
3540         *
3541         * @hide
3542         */
3543        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
3544
3545        /**
3546         * What happens when the user presses the Power button while in-call
3547         * and the screen is on.<br/>
3548         * <b>Values:</b><br/>
3549         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
3550         * 2 - The Power button hangs up the current call.<br/>
3551         *
3552         * @hide
3553         */
3554        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
3555
3556        /**
3557         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
3558         * @hide
3559         */
3560        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
3561
3562        /**
3563         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
3564         * @hide
3565         */
3566        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
3567
3568        /**
3569         * INCALL_POWER_BUTTON_BEHAVIOR default value.
3570         * @hide
3571         */
3572        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
3573                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
3574
3575        /**
3576         * The current night mode that has been selected by the user.  Owned
3577         * and controlled by UiModeManagerService.  Constants are as per
3578         * UiModeManager.
3579         * @hide
3580         */
3581        public static final String UI_NIGHT_MODE = "ui_night_mode";
3582
3583        /**
3584         * Let user pick default install location.
3585         * @hide
3586         */
3587        public static final String SET_INSTALL_LOCATION = "set_install_location";
3588
3589        /**
3590         * Default install location value.
3591         * 0 = auto, let system decide
3592         * 1 = internal
3593         * 2 = sdcard
3594         * @hide
3595         */
3596        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
3597
3598        /**
3599         * The bandwidth throttle polling freqency in seconds
3600         * @hide
3601         */
3602        public static final String THROTTLE_POLLING_SEC = "throttle_polling_sec";
3603
3604        /**
3605         * The bandwidth throttle threshold (long)
3606         * @hide
3607         */
3608        public static final String THROTTLE_THRESHOLD_BYTES = "throttle_threshold_bytes";
3609
3610        /**
3611         * The bandwidth throttle value (kbps)
3612         * @hide
3613         */
3614        public static final String THROTTLE_VALUE_KBITSPS = "throttle_value_kbitsps";
3615
3616        /**
3617         * The bandwidth throttle reset calendar day (1-28)
3618         * @hide
3619         */
3620        public static final String THROTTLE_RESET_DAY = "throttle_reset_day";
3621
3622        /**
3623         * The throttling notifications we should send
3624         * @hide
3625         */
3626        public static final String THROTTLE_NOTIFICATION_TYPE = "throttle_notification_type";
3627
3628        /**
3629         * Help URI for data throttling policy
3630         * @hide
3631         */
3632        public static final String THROTTLE_HELP_URI = "throttle_help_uri";
3633
3634        /**
3635         * The length of time in Sec that we allow our notion of NTP time
3636         * to be cached before we refresh it
3637         * @hide
3638         */
3639        public static final String THROTTLE_MAX_NTP_CACHE_AGE_SEC =
3640                "throttle_max_ntp_cache_age_sec";
3641
3642        /**
3643         * The maximum size, in bytes, of a download that the download manager will transfer over
3644         * a non-wifi connection.
3645         * @hide
3646         */
3647        public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
3648                "download_manager_max_bytes_over_mobile";
3649
3650        /**
3651         * The recommended maximum size, in bytes, of a download that the download manager should
3652         * transfer over a non-wifi connection. Over this size, the use will be warned, but will
3653         * have the option to start the download over the mobile connection anyway.
3654         * @hide
3655         */
3656        public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
3657                "download_manager_recommended_max_bytes_over_mobile";
3658
3659        /**
3660         * ms during which to consume extra events related to Inet connection condition
3661         * after a transtion to fully-connected
3662         * @hide
3663         */
3664        public static final String INET_CONDITION_DEBOUNCE_UP_DELAY =
3665                "inet_condition_debounce_up_delay";
3666
3667        /**
3668         * ms during which to consume extra events related to Inet connection condtion
3669         * after a transtion to partly-connected
3670         * @hide
3671         */
3672        public static final String INET_CONDITION_DEBOUNCE_DOWN_DELAY =
3673                "inet_condition_debounce_down_delay";
3674
3675        /**
3676         * @hide
3677         */
3678        public static final String[] SETTINGS_TO_BACKUP = {
3679            ADB_ENABLED,
3680            ALLOW_MOCK_LOCATION,
3681            PARENTAL_CONTROL_ENABLED,
3682            PARENTAL_CONTROL_REDIRECT_URL,
3683            USB_MASS_STORAGE_ENABLED,
3684            ACCESSIBILITY_ENABLED,
3685            ACCESSIBILITY_SCRIPT_INJECTION,
3686            BACKUP_AUTO_RESTORE,
3687            ENABLED_ACCESSIBILITY_SERVICES,
3688            TTS_USE_DEFAULTS,
3689            TTS_DEFAULT_RATE,
3690            TTS_DEFAULT_PITCH,
3691            TTS_DEFAULT_SYNTH,
3692            TTS_DEFAULT_LANG,
3693            TTS_DEFAULT_COUNTRY,
3694            TTS_ENABLED_PLUGINS,
3695            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
3696            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
3697            WIFI_COUNTRY_CODE,
3698            WIFI_NUM_OPEN_NETWORKS_KEPT,
3699            MOUNT_PLAY_NOTIFICATION_SND,
3700            MOUNT_UMS_AUTOSTART,
3701            MOUNT_UMS_PROMPT,
3702            MOUNT_UMS_NOTIFY_ENABLED,
3703            UI_NIGHT_MODE
3704        };
3705
3706        /**
3707         * Helper method for determining if a location provider is enabled.
3708         * @param cr the content resolver to use
3709         * @param provider the location provider to query
3710         * @return true if the provider is enabled
3711         */
3712        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
3713            String allowedProviders = Settings.Secure.getString(cr, LOCATION_PROVIDERS_ALLOWED);
3714            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
3715        }
3716
3717        /**
3718         * Thread-safe method for enabling or disabling a single location provider.
3719         * @param cr the content resolver to use
3720         * @param provider the location provider to enable or disable
3721         * @param enabled true if the provider should be enabled
3722         */
3723        public static final void setLocationProviderEnabled(ContentResolver cr,
3724                String provider, boolean enabled) {
3725            // to ensure thread safety, we write the provider name with a '+' or '-'
3726            // and let the SettingsProvider handle it rather than reading and modifying
3727            // the list of enabled providers.
3728            if (enabled) {
3729                provider = "+" + provider;
3730            } else {
3731                provider = "-" + provider;
3732            }
3733            putString(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider);
3734        }
3735    }
3736
3737    /**
3738     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
3739     * Intent URL, allowing it to be either a web page or a particular
3740     * application activity.
3741     *
3742     * @hide
3743     */
3744    public static final class Bookmarks implements BaseColumns
3745    {
3746        private static final String TAG = "Bookmarks";
3747
3748        /**
3749         * The content:// style URL for this table
3750         */
3751        public static final Uri CONTENT_URI =
3752            Uri.parse("content://" + AUTHORITY + "/bookmarks");
3753
3754        /**
3755         * The row ID.
3756         * <p>Type: INTEGER</p>
3757         */
3758        public static final String ID = "_id";
3759
3760        /**
3761         * Descriptive name of the bookmark that can be displayed to the user.
3762         * If this is empty, the title should be resolved at display time (use
3763         * {@link #getTitle(Context, Cursor)} any time you want to display the
3764         * title of a bookmark.)
3765         * <P>
3766         * Type: TEXT
3767         * </P>
3768         */
3769        public static final String TITLE = "title";
3770
3771        /**
3772         * Arbitrary string (displayed to the user) that allows bookmarks to be
3773         * organized into categories.  There are some special names for
3774         * standard folders, which all start with '@'.  The label displayed for
3775         * the folder changes with the locale (via {@link #getLabelForFolder}) but
3776         * the folder name does not change so you can consistently query for
3777         * the folder regardless of the current locale.
3778         *
3779         * <P>Type: TEXT</P>
3780         *
3781         */
3782        public static final String FOLDER = "folder";
3783
3784        /**
3785         * The Intent URL of the bookmark, describing what it points to.  This
3786         * value is given to {@link android.content.Intent#getIntent} to create
3787         * an Intent that can be launched.
3788         * <P>Type: TEXT</P>
3789         */
3790        public static final String INTENT = "intent";
3791
3792        /**
3793         * Optional shortcut character associated with this bookmark.
3794         * <P>Type: INTEGER</P>
3795         */
3796        public static final String SHORTCUT = "shortcut";
3797
3798        /**
3799         * The order in which the bookmark should be displayed
3800         * <P>Type: INTEGER</P>
3801         */
3802        public static final String ORDERING = "ordering";
3803
3804        private static final String[] sIntentProjection = { INTENT };
3805        private static final String[] sShortcutProjection = { ID, SHORTCUT };
3806        private static final String sShortcutSelection = SHORTCUT + "=?";
3807
3808        /**
3809         * Convenience function to retrieve the bookmarked Intent for a
3810         * particular shortcut key.
3811         *
3812         * @param cr The ContentResolver to query.
3813         * @param shortcut The shortcut key.
3814         *
3815         * @return Intent The bookmarked URL, or null if there is no bookmark
3816         *         matching the given shortcut.
3817         */
3818        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
3819        {
3820            Intent intent = null;
3821
3822            Cursor c = cr.query(CONTENT_URI,
3823                    sIntentProjection, sShortcutSelection,
3824                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
3825            // Keep trying until we find a valid shortcut
3826            try {
3827                while (intent == null && c.moveToNext()) {
3828                    try {
3829                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
3830                        intent = Intent.parseUri(intentURI, 0);
3831                    } catch (java.net.URISyntaxException e) {
3832                        // The stored URL is bad...  ignore it.
3833                    } catch (IllegalArgumentException e) {
3834                        // Column not found
3835                        Log.w(TAG, "Intent column not found", e);
3836                    }
3837                }
3838            } finally {
3839                if (c != null) c.close();
3840            }
3841
3842            return intent;
3843        }
3844
3845        /**
3846         * Add a new bookmark to the system.
3847         *
3848         * @param cr The ContentResolver to query.
3849         * @param intent The desired target of the bookmark.
3850         * @param title Bookmark title that is shown to the user; null if none
3851         *            or it should be resolved to the intent's title.
3852         * @param folder Folder in which to place the bookmark; null if none.
3853         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
3854         *            this is non-zero and there is an existing bookmark entry
3855         *            with this same shortcut, then that existing shortcut is
3856         *            cleared (the bookmark is not removed).
3857         * @return The unique content URL for the new bookmark entry.
3858         */
3859        public static Uri add(ContentResolver cr,
3860                                           Intent intent,
3861                                           String title,
3862                                           String folder,
3863                                           char shortcut,
3864                                           int ordering)
3865        {
3866            // If a shortcut is supplied, and it is already defined for
3867            // another bookmark, then remove the old definition.
3868            if (shortcut != 0) {
3869                cr.delete(CONTENT_URI, sShortcutSelection,
3870                        new String[] { String.valueOf((int) shortcut) });
3871            }
3872
3873            ContentValues values = new ContentValues();
3874            if (title != null) values.put(TITLE, title);
3875            if (folder != null) values.put(FOLDER, folder);
3876            values.put(INTENT, intent.toUri(0));
3877            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
3878            values.put(ORDERING, ordering);
3879            return cr.insert(CONTENT_URI, values);
3880        }
3881
3882        /**
3883         * Return the folder name as it should be displayed to the user.  This
3884         * takes care of localizing special folders.
3885         *
3886         * @param r Resources object for current locale; only need access to
3887         *          system resources.
3888         * @param folder The value found in the {@link #FOLDER} column.
3889         *
3890         * @return CharSequence The label for this folder that should be shown
3891         *         to the user.
3892         */
3893        public static CharSequence getLabelForFolder(Resources r, String folder) {
3894            return folder;
3895        }
3896
3897        /**
3898         * Return the title as it should be displayed to the user. This takes
3899         * care of localizing bookmarks that point to activities.
3900         *
3901         * @param context A context.
3902         * @param cursor A cursor pointing to the row whose title should be
3903         *        returned. The cursor must contain at least the {@link #TITLE}
3904         *        and {@link #INTENT} columns.
3905         * @return A title that is localized and can be displayed to the user,
3906         *         or the empty string if one could not be found.
3907         */
3908        public static CharSequence getTitle(Context context, Cursor cursor) {
3909            int titleColumn = cursor.getColumnIndex(TITLE);
3910            int intentColumn = cursor.getColumnIndex(INTENT);
3911            if (titleColumn == -1 || intentColumn == -1) {
3912                throw new IllegalArgumentException(
3913                        "The cursor must contain the TITLE and INTENT columns.");
3914            }
3915
3916            String title = cursor.getString(titleColumn);
3917            if (!TextUtils.isEmpty(title)) {
3918                return title;
3919            }
3920
3921            String intentUri = cursor.getString(intentColumn);
3922            if (TextUtils.isEmpty(intentUri)) {
3923                return "";
3924            }
3925
3926            Intent intent;
3927            try {
3928                intent = Intent.parseUri(intentUri, 0);
3929            } catch (URISyntaxException e) {
3930                return "";
3931            }
3932
3933            PackageManager packageManager = context.getPackageManager();
3934            ResolveInfo info = packageManager.resolveActivity(intent, 0);
3935            return info != null ? info.loadLabel(packageManager) : "";
3936        }
3937    }
3938
3939    /**
3940     * Returns the device ID that we should use when connecting to the mobile gtalk server.
3941     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
3942     * from the GoogleLoginService.
3943     *
3944     * @param androidId The Android ID for this device.
3945     * @return The device ID that should be used when connecting to the mobile gtalk server.
3946     * @hide
3947     */
3948    public static String getGTalkDeviceId(long androidId) {
3949        return "android-" + Long.toHexString(androidId);
3950    }
3951}
3952