Settings.java revision 04194fef78ecd75ea09cb9c75c211f5170e6f91d
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.provider;
18
19import static android.provider.SettingsValidators.ANY_INTEGER_VALIDATOR;
20import static android.provider.SettingsValidators.ANY_STRING_VALIDATOR;
21import static android.provider.SettingsValidators.BOOLEAN_VALIDATOR;
22import static android.provider.SettingsValidators.COMPONENT_NAME_VALIDATOR;
23import static android.provider.SettingsValidators.LENIENT_IP_ADDRESS_VALIDATOR;
24import static android.provider.SettingsValidators.LOCALE_VALIDATOR;
25import static android.provider.SettingsValidators.NON_NEGATIVE_INTEGER_VALIDATOR;
26import static android.provider.SettingsValidators.PACKAGE_NAME_VALIDATOR;
27import static android.provider.SettingsValidators.URI_VALIDATOR;
28
29import android.Manifest;
30import android.annotation.IntDef;
31import android.annotation.IntRange;
32import android.annotation.NonNull;
33import android.annotation.Nullable;
34import android.annotation.RequiresPermission;
35import android.annotation.SdkConstant;
36import android.annotation.SdkConstant.SdkConstantType;
37import android.annotation.SystemApi;
38import android.annotation.TestApi;
39import android.annotation.UserIdInt;
40import android.app.ActivityThread;
41import android.app.AppOpsManager;
42import android.app.Application;
43import android.app.NotificationChannel;
44import android.app.NotificationManager;
45import android.app.SearchManager;
46import android.app.WallpaperManager;
47import android.content.ComponentName;
48import android.content.ContentResolver;
49import android.content.ContentValues;
50import android.content.Context;
51import android.content.IContentProvider;
52import android.content.Intent;
53import android.content.pm.ActivityInfo;
54import android.content.pm.PackageManager;
55import android.content.pm.ResolveInfo;
56import android.content.res.Configuration;
57import android.content.res.Resources;
58import android.database.Cursor;
59import android.database.SQLException;
60import android.location.LocationManager;
61import android.net.ConnectivityManager;
62import android.net.NetworkScoreManager;
63import android.net.Uri;
64import android.net.wifi.WifiManager;
65import android.os.BatteryManager;
66import android.os.Binder;
67import android.os.Build.VERSION_CODES;
68import android.os.Bundle;
69import android.os.DropBoxManager;
70import android.os.IBinder;
71import android.os.LocaleList;
72import android.os.Process;
73import android.os.RemoteException;
74import android.os.ResultReceiver;
75import android.os.ServiceManager;
76import android.os.UserHandle;
77import android.provider.SettingsValidators.Validator;
78import android.speech.tts.TextToSpeech;
79import android.telephony.SubscriptionManager;
80import android.text.TextUtils;
81import android.util.AndroidException;
82import android.util.ArrayMap;
83import android.util.ArraySet;
84import android.util.Log;
85import android.util.MemoryIntArray;
86import android.view.textservice.TextServicesManager;
87
88import com.android.internal.annotations.GuardedBy;
89import com.android.internal.widget.ILockSettings;
90
91import java.io.IOException;
92import java.lang.annotation.Retention;
93import java.lang.annotation.RetentionPolicy;
94import java.net.URISyntaxException;
95import java.text.SimpleDateFormat;
96import java.util.HashMap;
97import java.util.HashSet;
98import java.util.Locale;
99import java.util.Map;
100import java.util.Set;
101
102/**
103 * The Settings provider contains global system-level device preferences.
104 */
105public final class Settings {
106
107    // Intent actions for Settings
108
109    /**
110     * Activity Action: Show system settings.
111     * <p>
112     * Input: Nothing.
113     * <p>
114     * Output: Nothing.
115     */
116    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
117    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
118
119    /**
120     * Activity Action: Show settings to allow configuration of APNs.
121     * <p>
122     * Input: Nothing.
123     * <p>
124     * Output: Nothing.
125     */
126    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
127    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
128
129    /**
130     * Activity Action: Show settings to allow configuration of current location
131     * sources.
132     * <p>
133     * In some cases, a matching Activity may not exist, so ensure you
134     * safeguard against this.
135     * <p>
136     * Input: Nothing.
137     * <p>
138     * Output: Nothing.
139     */
140    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
141    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
142            "android.settings.LOCATION_SOURCE_SETTINGS";
143
144    /**
145     * Activity Action: Show settings to allow configuration of users.
146     * <p>
147     * In some cases, a matching Activity may not exist, so ensure you
148     * safeguard against this.
149     * <p>
150     * Input: Nothing.
151     * <p>
152     * Output: Nothing.
153     * @hide
154     */
155    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
156    public static final String ACTION_USER_SETTINGS =
157            "android.settings.USER_SETTINGS";
158
159    /**
160     * Activity Action: Show settings to allow configuration of wireless controls
161     * such as Wi-Fi, Bluetooth and Mobile networks.
162     * <p>
163     * In some cases, a matching Activity may not exist, so ensure you
164     * safeguard against this.
165     * <p>
166     * Input: Nothing.
167     * <p>
168     * Output: Nothing.
169     */
170    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
171    public static final String ACTION_WIRELESS_SETTINGS =
172            "android.settings.WIRELESS_SETTINGS";
173
174    /**
175     * Activity Action: Show tether provisioning activity.
176     *
177     * <p>
178     * In some cases, a matching Activity may not exist, so ensure you
179     * safeguard against this.
180     * <p>
181     * Input: {@link ConnectivityManager#EXTRA_TETHER_TYPE} should be included to specify which type
182     * of tethering should be checked. {@link ConnectivityManager#EXTRA_PROVISION_CALLBACK} should
183     * contain a {@link ResultReceiver} which will be called back with a tether result code.
184     * <p>
185     * Output: The result of the provisioning check.
186     * {@link ConnectivityManager#TETHER_ERROR_NO_ERROR} if successful,
187     * {@link ConnectivityManager#TETHER_ERROR_PROVISION_FAILED} for failure.
188     *
189     * @hide
190     */
191    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
192    public static final String ACTION_TETHER_PROVISIONING =
193            "android.settings.TETHER_PROVISIONING_UI";
194
195    /**
196     * Activity Action: Show settings to allow entering/exiting airplane mode.
197     * <p>
198     * In some cases, a matching Activity may not exist, so ensure you
199     * safeguard against this.
200     * <p>
201     * Input: Nothing.
202     * <p>
203     * Output: Nothing.
204     */
205    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
206    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
207            "android.settings.AIRPLANE_MODE_SETTINGS";
208
209    /**
210     * Activity Action: Show mobile data usage list.
211     * <p>
212     * Input: {@link EXTRA_NETWORK_TEMPLATE} and {@link EXTRA_SUB_ID} should be included to specify
213     * how and what mobile data statistics should be collected.
214     * <p>
215     * Output: Nothing
216     * @hide
217     */
218    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
219    public static final String ACTION_MOBILE_DATA_USAGE =
220            "android.settings.MOBILE_DATA_USAGE";
221
222    /** @hide */
223    public static final String EXTRA_NETWORK_TEMPLATE = "network_template";
224
225    /**
226     * An int extra specifying a subscription ID.
227     *
228     * @see android.telephony.SubscriptionInfo#getSubscriptionId
229     */
230    public static final String EXTRA_SUB_ID = "android.provider.extra.SUB_ID";
231
232    /**
233     * Activity Action: Modify Airplane mode settings using a voice command.
234     * <p>
235     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
236     * <p>
237     * This intent MUST be started using
238     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
239     * startVoiceActivity}.
240     * <p>
241     * Note: The activity implementing this intent MUST verify that
242     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
243     * modifying the setting.
244     * <p>
245     * Input: To tell which state airplane mode should be set to, add the
246     * {@link #EXTRA_AIRPLANE_MODE_ENABLED} extra to this Intent with the state specified.
247     * If the extra is not included, no changes will be made.
248     * <p>
249     * Output: Nothing.
250     */
251    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
252    public static final String ACTION_VOICE_CONTROL_AIRPLANE_MODE =
253            "android.settings.VOICE_CONTROL_AIRPLANE_MODE";
254
255    /**
256     * Activity Action: Show settings for accessibility modules.
257     * <p>
258     * In some cases, a matching Activity may not exist, so ensure you
259     * safeguard against this.
260     * <p>
261     * Input: Nothing.
262     * <p>
263     * Output: Nothing.
264     */
265    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
266    public static final String ACTION_ACCESSIBILITY_SETTINGS =
267            "android.settings.ACCESSIBILITY_SETTINGS";
268
269    /**
270     * Activity Action: Show settings to control access to usage information.
271     * <p>
272     * In some cases, a matching Activity may not exist, so ensure you
273     * safeguard against this.
274     * <p>
275     * Input: Nothing.
276     * <p>
277     * Output: Nothing.
278     */
279    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
280    public static final String ACTION_USAGE_ACCESS_SETTINGS =
281            "android.settings.USAGE_ACCESS_SETTINGS";
282
283    /**
284     * Activity Category: Show application settings related to usage access.
285     * <p>
286     * An activity that provides a user interface for adjusting usage access related
287     * preferences for its containing application. Optional but recommended for apps that
288     * use {@link android.Manifest.permission#PACKAGE_USAGE_STATS}.
289     * <p>
290     * The activity may define meta-data to describe what usage access is
291     * used for within their app with {@link #METADATA_USAGE_ACCESS_REASON}, which
292     * will be displayed in Settings.
293     * <p>
294     * Input: Nothing.
295     * <p>
296     * Output: Nothing.
297     */
298    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
299    public static final String INTENT_CATEGORY_USAGE_ACCESS_CONFIG =
300            "android.intent.category.USAGE_ACCESS_CONFIG";
301
302    /**
303     * Metadata key: Reason for needing usage access.
304     * <p>
305     * A key for metadata attached to an activity that receives action
306     * {@link #INTENT_CATEGORY_USAGE_ACCESS_CONFIG}, shown to the
307     * user as description of how the app uses usage access.
308     * <p>
309     */
310    public static final String METADATA_USAGE_ACCESS_REASON =
311            "android.settings.metadata.USAGE_ACCESS_REASON";
312
313    /**
314     * Activity Action: Show settings to allow configuration of security and
315     * location privacy.
316     * <p>
317     * In some cases, a matching Activity may not exist, so ensure you
318     * safeguard against this.
319     * <p>
320     * Input: Nothing.
321     * <p>
322     * Output: Nothing.
323     */
324    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
325    public static final String ACTION_SECURITY_SETTINGS =
326            "android.settings.SECURITY_SETTINGS";
327
328    /**
329     * Activity Action: Show settings to allow configuration of trusted external sources
330     *
331     * Input: Optionally, the Intent's data URI can specify the application package name to
332     * directly invoke the management GUI specific to the package name. For example
333     * "package:com.my.app".
334     * <p>
335     * Output: Nothing.
336     */
337    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
338    public static final String ACTION_MANAGE_UNKNOWN_APP_SOURCES =
339            "android.settings.MANAGE_UNKNOWN_APP_SOURCES";
340
341    /**
342     * Activity Action: Show trusted credentials settings, opening to the user tab,
343     * to allow management of installed credentials.
344     * <p>
345     * In some cases, a matching Activity may not exist, so ensure you
346     * safeguard against this.
347     * <p>
348     * Input: Nothing.
349     * <p>
350     * Output: Nothing.
351     * @hide
352     */
353    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
354    public static final String ACTION_TRUSTED_CREDENTIALS_USER =
355            "com.android.settings.TRUSTED_CREDENTIALS_USER";
356
357    /**
358     * Activity Action: Show dialog explaining that an installed CA cert may enable
359     * monitoring of encrypted network traffic.
360     * <p>
361     * In some cases, a matching Activity may not exist, so ensure you
362     * safeguard against this. Add {@link #EXTRA_NUMBER_OF_CERTIFICATES} extra to indicate the
363     * number of certificates.
364     * <p>
365     * Input: Nothing.
366     * <p>
367     * Output: Nothing.
368     * @hide
369     */
370    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
371    public static final String ACTION_MONITORING_CERT_INFO =
372            "com.android.settings.MONITORING_CERT_INFO";
373
374    /**
375     * Activity Action: Show settings to allow configuration of privacy options.
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_PRIVACY_SETTINGS =
386            "android.settings.PRIVACY_SETTINGS";
387
388    /**
389     * Activity Action: Show settings to allow configuration of VPN.
390     * <p>
391     * In some cases, a matching Activity may not exist, so ensure you
392     * safeguard against this.
393     * <p>
394     * Input: Nothing.
395     * <p>
396     * Output: Nothing.
397     */
398    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
399    public static final String ACTION_VPN_SETTINGS =
400            "android.settings.VPN_SETTINGS";
401
402    /**
403     * Activity Action: Show settings to allow configuration of Wi-Fi.
404     * <p>
405     * In some cases, a matching Activity may not exist, so ensure you
406     * safeguard against this.
407     * <p>
408     * Input: Nothing.
409     * <p>
410     * Output: Nothing.
411     */
412    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
413    public static final String ACTION_WIFI_SETTINGS =
414            "android.settings.WIFI_SETTINGS";
415
416    /**
417     * Activity Action: Show settings to allow configuration of a static IP
418     * address for Wi-Fi.
419     * <p>
420     * In some cases, a matching Activity may not exist, so ensure you safeguard
421     * against this.
422     * <p>
423     * Input: Nothing.
424     * <p>
425     * Output: Nothing.
426     */
427    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
428    public static final String ACTION_WIFI_IP_SETTINGS =
429            "android.settings.WIFI_IP_SETTINGS";
430
431    /**
432     * Activity Action: Show settings to allow configuration of data and view data usage.
433     * <p>
434     * In some cases, a matching Activity may not exist, so ensure you
435     * safeguard against this.
436     * <p>
437     * Input: Nothing.
438     * <p>
439     * Output: Nothing.
440     */
441    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
442    public static final String ACTION_DATA_USAGE_SETTINGS =
443            "android.settings.DATA_USAGE_SETTINGS";
444
445    /**
446     * Activity Action: Show settings to allow configuration of Bluetooth.
447     * <p>
448     * In some cases, a matching Activity may not exist, so ensure you
449     * safeguard against this.
450     * <p>
451     * Input: Nothing.
452     * <p>
453     * Output: Nothing.
454     */
455    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
456    public static final String ACTION_BLUETOOTH_SETTINGS =
457            "android.settings.BLUETOOTH_SETTINGS";
458
459    /**
460     * Activity Action: Show settings to allow configuration of Assist Gesture.
461     * <p>
462     * In some cases, a matching Activity may not exist, so ensure you
463     * safeguard against this.
464     * <p>
465     * Input: Nothing.
466     * <p>
467     * Output: Nothing.
468     * @hide
469     */
470    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
471    public static final String ACTION_ASSIST_GESTURE_SETTINGS =
472            "android.settings.ASSIST_GESTURE_SETTINGS";
473
474    /**
475     * Activity Action: Show settings to enroll fingerprints, and setup PIN/Pattern/Pass if
476     * necessary.
477     * <p>
478     * Input: Nothing.
479     * <p>
480     * Output: Nothing.
481     */
482    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
483    public static final String ACTION_FINGERPRINT_ENROLL =
484            "android.settings.FINGERPRINT_ENROLL";
485
486    /**
487     * Activity Action: Show settings to allow configuration of cast endpoints.
488     * <p>
489     * In some cases, a matching Activity may not exist, so ensure you
490     * safeguard against this.
491     * <p>
492     * Input: Nothing.
493     * <p>
494     * Output: Nothing.
495     */
496    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
497    public static final String ACTION_CAST_SETTINGS =
498            "android.settings.CAST_SETTINGS";
499
500    /**
501     * Activity Action: Show settings to allow configuration of date and time.
502     * <p>
503     * In some cases, a matching Activity may not exist, so ensure you
504     * safeguard against this.
505     * <p>
506     * Input: Nothing.
507     * <p>
508     * Output: Nothing.
509     */
510    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
511    public static final String ACTION_DATE_SETTINGS =
512            "android.settings.DATE_SETTINGS";
513
514    /**
515     * Activity Action: Show settings to allow configuration of sound and volume.
516     * <p>
517     * In some cases, a matching Activity may not exist, so ensure you
518     * safeguard against this.
519     * <p>
520     * Input: Nothing.
521     * <p>
522     * Output: Nothing.
523     */
524    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
525    public static final String ACTION_SOUND_SETTINGS =
526            "android.settings.SOUND_SETTINGS";
527
528    /**
529     * Activity Action: Show settings to allow configuration of display.
530     * <p>
531     * In some cases, a matching Activity may not exist, so ensure you
532     * safeguard against this.
533     * <p>
534     * Input: Nothing.
535     * <p>
536     * Output: Nothing.
537     */
538    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
539    public static final String ACTION_DISPLAY_SETTINGS =
540            "android.settings.DISPLAY_SETTINGS";
541
542    /**
543     * Activity Action: Show settings to allow configuration of Night display.
544     * <p>
545     * In some cases, a matching Activity may not exist, so ensure you
546     * safeguard against this.
547     * <p>
548     * Input: Nothing.
549     * <p>
550     * Output: Nothing.
551     */
552    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
553    public static final String ACTION_NIGHT_DISPLAY_SETTINGS =
554            "android.settings.NIGHT_DISPLAY_SETTINGS";
555
556    /**
557     * Activity Action: Show settings to allow configuration of locale.
558     * <p>
559     * In some cases, a matching Activity may not exist, so ensure you
560     * safeguard against this.
561     * <p>
562     * Input: Nothing.
563     * <p>
564     * Output: Nothing.
565     */
566    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
567    public static final String ACTION_LOCALE_SETTINGS =
568            "android.settings.LOCALE_SETTINGS";
569
570    /**
571     * Activity Action: Show settings to configure input methods, in particular
572     * allowing the user to enable input methods.
573     * <p>
574     * In some cases, a matching Activity may not exist, so ensure you
575     * safeguard against this.
576     * <p>
577     * Input: Nothing.
578     * <p>
579     * Output: Nothing.
580     */
581    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
582    public static final String ACTION_VOICE_INPUT_SETTINGS =
583            "android.settings.VOICE_INPUT_SETTINGS";
584
585    /**
586     * Activity Action: Show settings to configure input methods, in particular
587     * allowing the user to enable input methods.
588     * <p>
589     * In some cases, a matching Activity may not exist, so ensure you
590     * safeguard against this.
591     * <p>
592     * Input: Nothing.
593     * <p>
594     * Output: Nothing.
595     */
596    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
597    public static final String ACTION_INPUT_METHOD_SETTINGS =
598            "android.settings.INPUT_METHOD_SETTINGS";
599
600    /**
601     * Activity Action: Show settings to enable/disable input method subtypes.
602     * <p>
603     * In some cases, a matching Activity may not exist, so ensure you
604     * safeguard against this.
605     * <p>
606     * To tell which input method's subtypes are displayed in the settings, add
607     * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
608     * If there is no extra in this Intent, subtypes from all installed input methods
609     * will be displayed in the settings.
610     *
611     * @see android.view.inputmethod.InputMethodInfo#getId
612     * <p>
613     * Input: Nothing.
614     * <p>
615     * Output: Nothing.
616     */
617    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
618    public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
619            "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
620
621    /**
622     * Activity Action: Show settings to manage the user input dictionary.
623     * <p>
624     * Starting with {@link android.os.Build.VERSION_CODES#KITKAT},
625     * it is guaranteed there will always be an appropriate implementation for this Intent action.
626     * In prior releases of the platform this was optional, so ensure you safeguard against it.
627     * <p>
628     * Input: Nothing.
629     * <p>
630     * Output: Nothing.
631     */
632    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
633    public static final String ACTION_USER_DICTIONARY_SETTINGS =
634            "android.settings.USER_DICTIONARY_SETTINGS";
635
636    /**
637     * Activity Action: Show settings to configure the hardware keyboard.
638     * <p>
639     * In some cases, a matching Activity may not exist, so ensure you
640     * safeguard against this.
641     * <p>
642     * Input: Nothing.
643     * <p>
644     * Output: Nothing.
645     */
646    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
647    public static final String ACTION_HARD_KEYBOARD_SETTINGS =
648            "android.settings.HARD_KEYBOARD_SETTINGS";
649
650    /**
651     * Activity Action: Adds a word to the user dictionary.
652     * <p>
653     * In some cases, a matching Activity may not exist, so ensure you
654     * safeguard against this.
655     * <p>
656     * Input: An extra with key <code>word</code> that contains the word
657     * that should be added to the dictionary.
658     * <p>
659     * Output: Nothing.
660     *
661     * @hide
662     */
663    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
664    public static final String ACTION_USER_DICTIONARY_INSERT =
665            "com.android.settings.USER_DICTIONARY_INSERT";
666
667    /**
668     * Activity Action: Show settings to allow configuration of application-related settings.
669     * <p>
670     * In some cases, a matching Activity may not exist, so ensure you
671     * safeguard against this.
672     * <p>
673     * Input: Nothing.
674     * <p>
675     * Output: Nothing.
676     */
677    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
678    public static final String ACTION_APPLICATION_SETTINGS =
679            "android.settings.APPLICATION_SETTINGS";
680
681    /**
682     * Activity Action: Show settings to allow configuration of application
683     * development-related settings.  As of
684     * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} this action is
685     * a required part of the platform.
686     * <p>
687     * Input: Nothing.
688     * <p>
689     * Output: Nothing.
690     */
691    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
692    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
693            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
694
695    /**
696     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
697     * <p>
698     * In some cases, a matching Activity may not exist, so ensure you
699     * safeguard against this.
700     * <p>
701     * Input: Nothing.
702     * <p>
703     * Output: Nothing.
704     */
705    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
706    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
707            "android.settings.QUICK_LAUNCH_SETTINGS";
708
709    /**
710     * Activity Action: Show settings to manage installed applications.
711     * <p>
712     * In some cases, a matching Activity may not exist, so ensure you
713     * safeguard against this.
714     * <p>
715     * Input: Nothing.
716     * <p>
717     * Output: Nothing.
718     */
719    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
720    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
721            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
722
723    /**
724     * Activity Action: Show settings to manage all applications.
725     * <p>
726     * In some cases, a matching Activity may not exist, so ensure you
727     * safeguard against this.
728     * <p>
729     * Input: Nothing.
730     * <p>
731     * Output: Nothing.
732     */
733    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
734    public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
735            "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";
736
737    /**
738     * Activity Action: Show screen for controlling which apps can draw on top of other apps.
739     * <p>
740     * In some cases, a matching Activity may not exist, so ensure you
741     * safeguard against this.
742     * <p>
743     * Input: Optionally, the Intent's data URI can specify the application package name to
744     * directly invoke the management GUI specific to the package name. For example
745     * "package:com.my.app".
746     * <p>
747     * Output: Nothing.
748     */
749    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
750    public static final String ACTION_MANAGE_OVERLAY_PERMISSION =
751            "android.settings.action.MANAGE_OVERLAY_PERMISSION";
752
753    /**
754     * Activity Action: Show screen for controlling which apps are allowed to write/modify
755     * system settings.
756     * <p>
757     * In some cases, a matching Activity may not exist, so ensure you
758     * safeguard against this.
759     * <p>
760     * Input: Optionally, the Intent's data URI can specify the application package name to
761     * directly invoke the management GUI specific to the package name. For example
762     * "package:com.my.app".
763     * <p>
764     * Output: Nothing.
765     */
766    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
767    public static final String ACTION_MANAGE_WRITE_SETTINGS =
768            "android.settings.action.MANAGE_WRITE_SETTINGS";
769
770    /**
771     * Activity Action: Show screen of details about a particular application.
772     * <p>
773     * In some cases, a matching Activity may not exist, so ensure you
774     * safeguard against this.
775     * <p>
776     * Input: The Intent's data URI specifies the application package name
777     * to be shown, with the "package" scheme.  That is "package:com.my.app".
778     * <p>
779     * Output: Nothing.
780     */
781    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
782    public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
783            "android.settings.APPLICATION_DETAILS_SETTINGS";
784
785    /**
786     * Activity Action: Show the "Open by Default" page in a particular application's details page.
787     * <p>
788     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
789     * <p>
790     * Input: The Intent's data URI specifies the application package name
791     * to be shown, with the "package" scheme. That is "package:com.my.app".
792     * <p>
793     * Output: Nothing.
794     * @hide
795     */
796    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
797    public static final String ACTION_APPLICATION_DETAILS_SETTINGS_OPEN_BY_DEFAULT_PAGE =
798            "android.settings.APPLICATION_DETAILS_SETTINGS_OPEN_BY_DEFAULT_PAGE";
799
800    /**
801     * Activity Action: Show list of applications that have been running
802     * foreground services (to the user "running in the background").
803     * <p>
804     * Input: Extras "packages" is a string array of package names.
805     * <p>
806     * Output: Nothing.
807     * @hide
808     */
809    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
810    public static final String ACTION_FOREGROUND_SERVICES_SETTINGS =
811            "android.settings.FOREGROUND_SERVICES_SETTINGS";
812
813    /**
814     * Activity Action: Show screen for controlling which apps can ignore battery optimizations.
815     * <p>
816     * Input: Nothing.
817     * <p>
818     * Output: Nothing.
819     * <p>
820     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
821     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
822     * already ignoring optimizations.  You can use
823     * {@link #ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS} to ask the user to put you
824     * on this list.
825     */
826    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
827    public static final String ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS =
828            "android.settings.IGNORE_BATTERY_OPTIMIZATION_SETTINGS";
829
830    /**
831     * Activity Action: Ask the user to allow an app to ignore battery optimizations (that is,
832     * put them on the whitelist of apps shown by
833     * {@link #ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS}).  For an app to use this, it also
834     * must hold the {@link android.Manifest.permission#REQUEST_IGNORE_BATTERY_OPTIMIZATIONS}
835     * permission.
836     * <p><b>Note:</b> most applications should <em>not</em> use this; there are many facilities
837     * provided by the platform for applications to operate correctly in the various power
838     * saving modes.  This is only for unusual applications that need to deeply control their own
839     * execution, at the potential expense of the user's battery life.  Note that these applications
840     * greatly run the risk of showing to the user as high power consumers on their device.</p>
841     * <p>
842     * Input: The Intent's data URI must specify the application package name
843     * to be shown, with the "package" scheme.  That is "package:com.my.app".
844     * <p>
845     * Output: Nothing.
846     * <p>
847     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
848     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
849     * already ignoring optimizations.
850     */
851    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
852    public static final String ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS =
853            "android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS";
854
855    /**
856     * Activity Action: Show screen for controlling background data
857     * restrictions for a particular application.
858     * <p>
859     * Input: Intent's data URI set with an application name, using the
860     * "package" schema (like "package:com.my.app").
861     *
862     * <p>
863     * Output: Nothing.
864     * <p>
865     * Applications can also use {@link android.net.ConnectivityManager#getRestrictBackgroundStatus
866     * ConnectivityManager#getRestrictBackgroundStatus()} to determine the
867     * status of the background data restrictions for them.
868     */
869    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
870    public static final String ACTION_IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS =
871            "android.settings.IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS";
872
873    /**
874     * @hide
875     * Activity Action: Show the "app ops" settings screen.
876     * <p>
877     * Input: Nothing.
878     * <p>
879     * Output: Nothing.
880     */
881    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
882    public static final String ACTION_APP_OPS_SETTINGS =
883            "android.settings.APP_OPS_SETTINGS";
884
885    /**
886     * Activity Action: Show settings for system update functionality.
887     * <p>
888     * In some cases, a matching Activity may not exist, so ensure you
889     * safeguard against this.
890     * <p>
891     * Input: Nothing.
892     * <p>
893     * Output: Nothing.
894     *
895     * @hide
896     */
897    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
898    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
899            "android.settings.SYSTEM_UPDATE_SETTINGS";
900
901    /**
902     * Activity Action: Show settings for managed profile settings.
903     * <p>
904     * In some cases, a matching Activity may not exist, so ensure you
905     * safeguard against this.
906     * <p>
907     * Input: Nothing.
908     * <p>
909     * Output: Nothing.
910     *
911     * @hide
912     */
913    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
914    public static final String ACTION_MANAGED_PROFILE_SETTINGS =
915            "android.settings.MANAGED_PROFILE_SETTINGS";
916
917    /**
918     * Activity Action: Show settings to allow configuration of sync settings.
919     * <p>
920     * In some cases, a matching Activity may not exist, so ensure you
921     * safeguard against this.
922     * <p>
923     * The account types available to add via the add account button may be restricted by adding an
924     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
925     * authorities. Only account types which can sync with that content provider will be offered to
926     * the user.
927     * <p>
928     * Input: Nothing.
929     * <p>
930     * Output: Nothing.
931     */
932    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
933    public static final String ACTION_SYNC_SETTINGS =
934            "android.settings.SYNC_SETTINGS";
935
936    /**
937     * Activity Action: Show add account screen for creating a new account.
938     * <p>
939     * In some cases, a matching Activity may not exist, so ensure you
940     * safeguard against this.
941     * <p>
942     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
943     * extra to the Intent with one or more syncable content provider's authorities.  Only account
944     * types which can sync with that content provider will be offered to the user.
945     * <p>
946     * Account types can also be filtered by adding an {@link #EXTRA_ACCOUNT_TYPES} extra to the
947     * Intent with one or more account types.
948     * <p>
949     * Input: Nothing.
950     * <p>
951     * Output: Nothing.
952     */
953    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
954    public static final String ACTION_ADD_ACCOUNT =
955            "android.settings.ADD_ACCOUNT_SETTINGS";
956
957    /**
958     * Activity Action: Show settings for selecting the network operator.
959     * <p>
960     * In some cases, a matching Activity may not exist, so ensure you
961     * safeguard against this.
962     * <p>
963     * The subscription ID of the subscription for which available network operators should be
964     * displayed may be optionally specified with {@link #EXTRA_SUB_ID}.
965     * <p>
966     * Input: Nothing.
967     * <p>
968     * Output: Nothing.
969     */
970    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
971    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
972            "android.settings.NETWORK_OPERATOR_SETTINGS";
973
974    /**
975     * Activity Action: Show settings for selection of 2G/3G.
976     * <p>
977     * In some cases, a matching Activity may not exist, so ensure you
978     * safeguard against this.
979     * <p>
980     * Input: Nothing.
981     * <p>
982     * Output: Nothing.
983     */
984    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
985    public static final String ACTION_DATA_ROAMING_SETTINGS =
986            "android.settings.DATA_ROAMING_SETTINGS";
987
988    /**
989     * Activity Action: Show settings for internal storage.
990     * <p>
991     * In some cases, a matching Activity may not exist, so ensure you
992     * safeguard against this.
993     * <p>
994     * Input: Nothing.
995     * <p>
996     * Output: Nothing.
997     */
998    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
999    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
1000            "android.settings.INTERNAL_STORAGE_SETTINGS";
1001    /**
1002     * Activity Action: Show settings for memory card storage.
1003     * <p>
1004     * In some cases, a matching Activity may not exist, so ensure you
1005     * safeguard against this.
1006     * <p>
1007     * Input: Nothing.
1008     * <p>
1009     * Output: Nothing.
1010     */
1011    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1012    public static final String ACTION_MEMORY_CARD_SETTINGS =
1013            "android.settings.MEMORY_CARD_SETTINGS";
1014
1015    /**
1016     * Activity Action: Show settings for global search.
1017     * <p>
1018     * In some cases, a matching Activity may not exist, so ensure you
1019     * safeguard against this.
1020     * <p>
1021     * Input: Nothing.
1022     * <p>
1023     * Output: Nothing
1024     */
1025    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1026    public static final String ACTION_SEARCH_SETTINGS =
1027        "android.search.action.SEARCH_SETTINGS";
1028
1029    /**
1030     * Activity Action: Show general device information settings (serial
1031     * number, software version, phone number, etc.).
1032     * <p>
1033     * In some cases, a matching Activity may not exist, so ensure you
1034     * safeguard against this.
1035     * <p>
1036     * Input: Nothing.
1037     * <p>
1038     * Output: Nothing
1039     */
1040    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1041    public static final String ACTION_DEVICE_INFO_SETTINGS =
1042        "android.settings.DEVICE_INFO_SETTINGS";
1043
1044    /**
1045     * Activity Action: Show NFC settings.
1046     * <p>
1047     * This shows UI that allows NFC to be turned on or off.
1048     * <p>
1049     * In some cases, a matching Activity may not exist, so ensure you
1050     * safeguard against this.
1051     * <p>
1052     * Input: Nothing.
1053     * <p>
1054     * Output: Nothing
1055     * @see android.nfc.NfcAdapter#isEnabled()
1056     */
1057    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1058    public static final String ACTION_NFC_SETTINGS = "android.settings.NFC_SETTINGS";
1059
1060    /**
1061     * Activity Action: Show NFC Sharing settings.
1062     * <p>
1063     * This shows UI that allows NDEF Push (Android Beam) to be turned on or
1064     * off.
1065     * <p>
1066     * In some cases, a matching Activity may not exist, so ensure you
1067     * safeguard against this.
1068     * <p>
1069     * Input: Nothing.
1070     * <p>
1071     * Output: Nothing
1072     * @see android.nfc.NfcAdapter#isNdefPushEnabled()
1073     */
1074    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1075    public static final String ACTION_NFCSHARING_SETTINGS =
1076        "android.settings.NFCSHARING_SETTINGS";
1077
1078    /**
1079     * Activity Action: Show NFC Tap & Pay settings
1080     * <p>
1081     * This shows UI that allows the user to configure Tap&Pay
1082     * settings.
1083     * <p>
1084     * In some cases, a matching Activity may not exist, so ensure you
1085     * safeguard against this.
1086     * <p>
1087     * Input: Nothing.
1088     * <p>
1089     * Output: Nothing
1090     */
1091    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1092    public static final String ACTION_NFC_PAYMENT_SETTINGS =
1093        "android.settings.NFC_PAYMENT_SETTINGS";
1094
1095    /**
1096     * Activity Action: Show Daydream settings.
1097     * <p>
1098     * In some cases, a matching Activity may not exist, so ensure you
1099     * safeguard against this.
1100     * <p>
1101     * Input: Nothing.
1102     * <p>
1103     * Output: Nothing.
1104     * @see android.service.dreams.DreamService
1105     */
1106    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1107    public static final String ACTION_DREAM_SETTINGS = "android.settings.DREAM_SETTINGS";
1108
1109    /**
1110     * Activity Action: Show Notification listener settings.
1111     * <p>
1112     * In some cases, a matching Activity may not exist, so ensure you
1113     * safeguard against this.
1114     * <p>
1115     * Input: Nothing.
1116     * <p>
1117     * Output: Nothing.
1118     * @see android.service.notification.NotificationListenerService
1119     */
1120    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1121    public static final String ACTION_NOTIFICATION_LISTENER_SETTINGS
1122            = "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS";
1123
1124    /**
1125     * Activity Action: Show Do Not Disturb access settings.
1126     * <p>
1127     * Users can grant and deny access to Do Not Disturb configuration from here.
1128     * See {@link android.app.NotificationManager#isNotificationPolicyAccessGranted()} for more
1129     * details.
1130     * <p>
1131     * Input: Nothing.
1132     * <p>
1133     * Output: Nothing.
1134     */
1135    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1136    public static final String ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS
1137            = "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS";
1138
1139    /**
1140     * @hide
1141     */
1142    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1143    public static final String ACTION_CONDITION_PROVIDER_SETTINGS
1144            = "android.settings.ACTION_CONDITION_PROVIDER_SETTINGS";
1145
1146    /**
1147     * Activity Action: Show settings for video captioning.
1148     * <p>
1149     * In some cases, a matching Activity may not exist, so ensure you safeguard
1150     * against this.
1151     * <p>
1152     * Input: Nothing.
1153     * <p>
1154     * Output: Nothing.
1155     */
1156    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1157    public static final String ACTION_CAPTIONING_SETTINGS = "android.settings.CAPTIONING_SETTINGS";
1158
1159    /**
1160     * Activity Action: Show the top level print settings.
1161     * <p>
1162     * In some cases, a matching Activity may not exist, so ensure you
1163     * safeguard against this.
1164     * <p>
1165     * Input: Nothing.
1166     * <p>
1167     * Output: Nothing.
1168     */
1169    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1170    public static final String ACTION_PRINT_SETTINGS =
1171            "android.settings.ACTION_PRINT_SETTINGS";
1172
1173    /**
1174     * Activity Action: Show Zen Mode configuration settings.
1175     *
1176     * @hide
1177     */
1178    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1179    public static final String ACTION_ZEN_MODE_SETTINGS = "android.settings.ZEN_MODE_SETTINGS";
1180
1181    /**
1182     * Activity Action: Show Zen Mode (aka Do Not Disturb) priority configuration settings.
1183     */
1184    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1185    public static final String ACTION_ZEN_MODE_PRIORITY_SETTINGS
1186            = "android.settings.ZEN_MODE_PRIORITY_SETTINGS";
1187
1188    /**
1189     * Activity Action: Show Zen Mode automation configuration settings.
1190     *
1191     * @hide
1192     */
1193    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1194    public static final String ACTION_ZEN_MODE_AUTOMATION_SETTINGS
1195            = "android.settings.ZEN_MODE_AUTOMATION_SETTINGS";
1196
1197    /**
1198     * Activity Action: Modify do not disturb mode settings.
1199     * <p>
1200     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1201     * <p>
1202     * This intent MUST be started using
1203     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1204     * startVoiceActivity}.
1205     * <p>
1206     * Note: The Activity implementing this intent MUST verify that
1207     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction}.
1208     * returns true before modifying the setting.
1209     * <p>
1210     * Input: The optional {@link #EXTRA_DO_NOT_DISTURB_MODE_MINUTES} extra can be used to indicate
1211     * how long the user wishes to avoid interruptions for. The optional
1212     * {@link #EXTRA_DO_NOT_DISTURB_MODE_ENABLED} extra can be to indicate if the user is
1213     * enabling or disabling do not disturb mode. If either extra is not included, the
1214     * user maybe asked to provide the value.
1215     * <p>
1216     * Output: Nothing.
1217     */
1218    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1219    public static final String ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE =
1220            "android.settings.VOICE_CONTROL_DO_NOT_DISTURB_MODE";
1221
1222    /**
1223     * Activity Action: Show Zen Mode schedule rule configuration settings.
1224     *
1225     * @hide
1226     */
1227    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1228    public static final String ACTION_ZEN_MODE_SCHEDULE_RULE_SETTINGS
1229            = "android.settings.ZEN_MODE_SCHEDULE_RULE_SETTINGS";
1230
1231    /**
1232     * Activity Action: Show Zen Mode event rule configuration settings.
1233     *
1234     * @hide
1235     */
1236    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1237    public static final String ACTION_ZEN_MODE_EVENT_RULE_SETTINGS
1238            = "android.settings.ZEN_MODE_EVENT_RULE_SETTINGS";
1239
1240    /**
1241     * Activity Action: Show Zen Mode external rule configuration settings.
1242     *
1243     * @hide
1244     */
1245    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1246    public static final String ACTION_ZEN_MODE_EXTERNAL_RULE_SETTINGS
1247            = "android.settings.ZEN_MODE_EXTERNAL_RULE_SETTINGS";
1248
1249    /**
1250     * Activity Action: Show the regulatory information screen for the device.
1251     * <p>
1252     * In some cases, a matching Activity may not exist, so ensure you safeguard
1253     * against this.
1254     * <p>
1255     * Input: Nothing.
1256     * <p>
1257     * Output: Nothing.
1258     */
1259    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1260    public static final String
1261            ACTION_SHOW_REGULATORY_INFO = "android.settings.SHOW_REGULATORY_INFO";
1262
1263    /**
1264     * Activity Action: Show Device Name Settings.
1265     * <p>
1266     * In some cases, a matching Activity may not exist, so ensure you safeguard
1267     * against this.
1268     *
1269     * @hide
1270     */
1271    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1272    public static final String DEVICE_NAME_SETTINGS = "android.settings.DEVICE_NAME";
1273
1274    /**
1275     * Activity Action: Show pairing settings.
1276     * <p>
1277     * In some cases, a matching Activity may not exist, so ensure you safeguard
1278     * against this.
1279     *
1280     * @hide
1281     */
1282    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1283    public static final String ACTION_PAIRING_SETTINGS = "android.settings.PAIRING_SETTINGS";
1284
1285    /**
1286     * Activity Action: Show battery saver settings.
1287     * <p>
1288     * In some cases, a matching Activity may not exist, so ensure you safeguard
1289     * against this.
1290     */
1291    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1292    public static final String ACTION_BATTERY_SAVER_SETTINGS
1293            = "android.settings.BATTERY_SAVER_SETTINGS";
1294
1295    /**
1296     * Activity Action: Modify Battery Saver mode setting using a voice command.
1297     * <p>
1298     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1299     * <p>
1300     * This intent MUST be started using
1301     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1302     * startVoiceActivity}.
1303     * <p>
1304     * Note: The activity implementing this intent MUST verify that
1305     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
1306     * modifying the setting.
1307     * <p>
1308     * Input: To tell which state batter saver mode should be set to, add the
1309     * {@link #EXTRA_BATTERY_SAVER_MODE_ENABLED} extra to this Intent with the state specified.
1310     * If the extra is not included, no changes will be made.
1311     * <p>
1312     * Output: Nothing.
1313     */
1314    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1315    public static final String ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE =
1316            "android.settings.VOICE_CONTROL_BATTERY_SAVER_MODE";
1317
1318    /**
1319     * Activity Action: Show Home selection settings. If there are multiple activities
1320     * that can satisfy the {@link Intent#CATEGORY_HOME} intent, this screen allows you
1321     * to pick your preferred activity.
1322     */
1323    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1324    public static final String ACTION_HOME_SETTINGS
1325            = "android.settings.HOME_SETTINGS";
1326
1327    /**
1328     * Activity Action: Show Default apps settings.
1329     * <p>
1330     * In some cases, a matching Activity may not exist, so ensure you
1331     * safeguard against this.
1332     * <p>
1333     * Input: Nothing.
1334     * <p>
1335     * Output: Nothing.
1336     */
1337    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1338    public static final String ACTION_MANAGE_DEFAULT_APPS_SETTINGS
1339            = "android.settings.MANAGE_DEFAULT_APPS_SETTINGS";
1340
1341    /**
1342     * Activity Action: Show notification settings.
1343     *
1344     * @hide
1345     */
1346    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1347    public static final String ACTION_NOTIFICATION_SETTINGS
1348            = "android.settings.NOTIFICATION_SETTINGS";
1349
1350    /**
1351     * Activity Action: Show app listing settings, filtered by those that send notifications.
1352     *
1353     * @hide
1354     */
1355    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1356    public static final String ACTION_ALL_APPS_NOTIFICATION_SETTINGS =
1357            "android.settings.ALL_APPS_NOTIFICATION_SETTINGS";
1358
1359    /**
1360     * Activity Action: Show notification settings for a single app.
1361     * <p>
1362     *     Input: {@link #EXTRA_APP_PACKAGE}, the package to display.
1363     * <p>
1364     * Output: Nothing.
1365     */
1366    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1367    public static final String ACTION_APP_NOTIFICATION_SETTINGS
1368            = "android.settings.APP_NOTIFICATION_SETTINGS";
1369
1370    /**
1371     * Activity Action: Show notification settings for a single {@link NotificationChannel}.
1372     * <p>
1373     *     Input: {@link #EXTRA_APP_PACKAGE}, the package containing the channel to display.
1374     *     Input: {@link #EXTRA_CHANNEL_ID}, the id of the channel to display.
1375     * <p>
1376     * Output: Nothing.
1377     */
1378    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1379    public static final String ACTION_CHANNEL_NOTIFICATION_SETTINGS
1380            = "android.settings.CHANNEL_NOTIFICATION_SETTINGS";
1381
1382    /**
1383     * Activity Extra: The package owner of the notification channel settings to display.
1384     * <p>
1385     * This must be passed as an extra field to the {@link #ACTION_CHANNEL_NOTIFICATION_SETTINGS}.
1386     */
1387    public static final String EXTRA_APP_PACKAGE = "android.provider.extra.APP_PACKAGE";
1388
1389    /**
1390     * Activity Extra: The {@link NotificationChannel#getId()} of the notification channel settings
1391     * to display.
1392     * <p>
1393     * This must be passed as an extra field to the {@link #ACTION_CHANNEL_NOTIFICATION_SETTINGS}.
1394     */
1395    public static final String EXTRA_CHANNEL_ID = "android.provider.extra.CHANNEL_ID";
1396
1397    /**
1398     * Activity Action: Show notification redaction settings.
1399     *
1400     * @hide
1401     */
1402    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1403    public static final String ACTION_APP_NOTIFICATION_REDACTION
1404            = "android.settings.ACTION_APP_NOTIFICATION_REDACTION";
1405
1406    /** @hide */ public static final String EXTRA_APP_UID = "app_uid";
1407
1408    /**
1409     * Activity Action: Show a dialog with disabled by policy message.
1410     * <p> If an user action is disabled by policy, this dialog can be triggered to let
1411     * the user know about this.
1412     * <p>
1413     * Input: Nothing.
1414     * <p>
1415     * Output: Nothing.
1416     *
1417     * @hide
1418     */
1419    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1420    public static final String ACTION_SHOW_ADMIN_SUPPORT_DETAILS
1421            = "android.settings.SHOW_ADMIN_SUPPORT_DETAILS";
1422
1423    /**
1424     * Activity Action: Show a dialog for remote bugreport flow.
1425     * <p>
1426     * Input: Nothing.
1427     * <p>
1428     * Output: Nothing.
1429     *
1430     * @hide
1431     */
1432    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1433    public static final String ACTION_SHOW_REMOTE_BUGREPORT_DIALOG
1434            = "android.settings.SHOW_REMOTE_BUGREPORT_DIALOG";
1435
1436    /**
1437     * Activity Action: Show VR listener settings.
1438     * <p>
1439     * Input: Nothing.
1440     * <p>
1441     * Output: Nothing.
1442     *
1443     * @see android.service.vr.VrListenerService
1444     */
1445    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1446    public static final String ACTION_VR_LISTENER_SETTINGS
1447            = "android.settings.VR_LISTENER_SETTINGS";
1448
1449    /**
1450     * Activity Action: Show Picture-in-picture settings.
1451     * <p>
1452     * Input: Nothing.
1453     * <p>
1454     * Output: Nothing.
1455     *
1456     * @hide
1457     */
1458    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1459    public static final String ACTION_PICTURE_IN_PICTURE_SETTINGS
1460            = "android.settings.PICTURE_IN_PICTURE_SETTINGS";
1461
1462    /**
1463     * Activity Action: Show Storage Manager settings.
1464     * <p>
1465     * Input: Nothing.
1466     * <p>
1467     * Output: Nothing.
1468     *
1469     * @hide
1470     */
1471    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1472    public static final String ACTION_STORAGE_MANAGER_SETTINGS
1473            = "android.settings.STORAGE_MANAGER_SETTINGS";
1474
1475    /**
1476     * Activity Action: Allows user to select current webview implementation.
1477     * <p>
1478     * Input: Nothing.
1479     * <p>
1480     * Output: Nothing.
1481     */
1482    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1483    public static final String ACTION_WEBVIEW_SETTINGS = "android.settings.WEBVIEW_SETTINGS";
1484
1485    /**
1486     * Activity Action: Show enterprise privacy section.
1487     * <p>
1488     * Input: Nothing.
1489     * <p>
1490     * Output: Nothing.
1491     * @hide
1492     */
1493    @SystemApi
1494    @TestApi
1495    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1496    public static final String ACTION_ENTERPRISE_PRIVACY_SETTINGS
1497            = "android.settings.ENTERPRISE_PRIVACY_SETTINGS";
1498
1499    /**
1500     * Activity Action: Show screen that let user select its Autofill Service.
1501     * <p>
1502     * Input: Intent's data URI set with an application name, using the
1503     * "package" schema (like "package:com.my.app").
1504     *
1505     * <p>
1506     * Output: {@link android.app.Activity#RESULT_OK} if user selected an Autofill Service belonging
1507     * to the caller package.
1508     *
1509     * <p>
1510     * <b>NOTE: </b> Applications should call
1511     * {@link android.view.autofill.AutofillManager#hasEnabledAutofillServices()} and
1512     * {@link android.view.autofill.AutofillManager#isAutofillSupported()}, and only use this action
1513     * to start an activity if they return {@code false} and {@code true} respectively.
1514     */
1515    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1516    public static final String ACTION_REQUEST_SET_AUTOFILL_SERVICE =
1517            "android.settings.REQUEST_SET_AUTOFILL_SERVICE";
1518
1519    /**
1520     * Activity Action: Show screen for controlling which apps have access on volume directories.
1521     * <p>
1522     * Input: Nothing.
1523     * <p>
1524     * Output: Nothing.
1525     * <p>
1526     * Applications typically use this action to ask the user to revert the "Do not ask again"
1527     * status of directory access requests made by
1528     * {@link android.os.storage.StorageVolume#createAccessIntent(String)}.
1529     */
1530    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1531    public static final String ACTION_STORAGE_VOLUME_ACCESS_SETTINGS =
1532            "android.settings.STORAGE_VOLUME_ACCESS_SETTINGS";
1533
1534    // End of Intent actions for Settings
1535
1536    /**
1537     * @hide - Private call() method on SettingsProvider to read from 'system' table.
1538     */
1539    public static final String CALL_METHOD_GET_SYSTEM = "GET_system";
1540
1541    /**
1542     * @hide - Private call() method on SettingsProvider to read from 'secure' table.
1543     */
1544    public static final String CALL_METHOD_GET_SECURE = "GET_secure";
1545
1546    /**
1547     * @hide - Private call() method on SettingsProvider to read from 'global' table.
1548     */
1549    public static final String CALL_METHOD_GET_GLOBAL = "GET_global";
1550
1551    /**
1552     * @hide - Specifies that the caller of the fast-path call()-based flow tracks
1553     * the settings generation in order to cache values locally. If this key is
1554     * mapped to a <code>null</code> string extra in the request bundle, the response
1555     * bundle will contain the same key mapped to a parcelable extra which would be
1556     * an {@link android.util.MemoryIntArray}. The response will also contain an
1557     * integer mapped to the {@link #CALL_METHOD_GENERATION_INDEX_KEY} which is the
1558     * index in the array clients should use to lookup the generation. For efficiency
1559     * the caller should request the generation tracking memory array only if it
1560     * doesn't already have it.
1561     *
1562     * @see #CALL_METHOD_GENERATION_INDEX_KEY
1563     */
1564    public static final String CALL_METHOD_TRACK_GENERATION_KEY = "_track_generation";
1565
1566    /**
1567     * @hide Key with the location in the {@link android.util.MemoryIntArray} where
1568     * to look up the generation id of the backing table. The value is an integer.
1569     *
1570     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1571     */
1572    public static final String CALL_METHOD_GENERATION_INDEX_KEY = "_generation_index";
1573
1574    /**
1575     * @hide Key with the settings table generation. The value is an integer.
1576     *
1577     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1578     */
1579    public static final String CALL_METHOD_GENERATION_KEY = "_generation";
1580
1581    /**
1582     * @hide - User handle argument extra to the fast-path call()-based requests
1583     */
1584    public static final String CALL_METHOD_USER_KEY = "_user";
1585
1586    /**
1587     * @hide - Boolean argument extra to the fast-path call()-based requests
1588     */
1589    public static final String CALL_METHOD_MAKE_DEFAULT_KEY = "_make_default";
1590
1591    /**
1592     * @hide - User handle argument extra to the fast-path call()-based requests
1593     */
1594    public static final String CALL_METHOD_RESET_MODE_KEY = "_reset_mode";
1595
1596    /**
1597     * @hide - String argument extra to the fast-path call()-based requests
1598     */
1599    public static final String CALL_METHOD_TAG_KEY = "_tag";
1600
1601    /** @hide - Private call() method to write to 'system' table */
1602    public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
1603
1604    /** @hide - Private call() method to write to 'secure' table */
1605    public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
1606
1607    /** @hide - Private call() method to write to 'global' table */
1608    public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";
1609
1610    /** @hide - Private call() method to reset to defaults the 'global' table */
1611    public static final String CALL_METHOD_RESET_GLOBAL = "RESET_global";
1612
1613    /** @hide - Private call() method to reset to defaults the 'secure' table */
1614    public static final String CALL_METHOD_RESET_SECURE = "RESET_secure";
1615
1616    /**
1617     * Activity Extra: Limit available options in launched activity based on the given authority.
1618     * <p>
1619     * This can be passed as an extra field in an Activity Intent with one or more syncable content
1620     * provider's authorities as a String[]. This field is used by some intents to alter the
1621     * behavior of the called activity.
1622     * <p>
1623     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
1624     * on the authority given.
1625     */
1626    public static final String EXTRA_AUTHORITIES = "authorities";
1627
1628    /**
1629     * Activity Extra: Limit available options in launched activity based on the given account
1630     * types.
1631     * <p>
1632     * This can be passed as an extra field in an Activity Intent with one or more account types
1633     * as a String[]. This field is used by some intents to alter the behavior of the called
1634     * activity.
1635     * <p>
1636     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
1637     * list.
1638     */
1639    public static final String EXTRA_ACCOUNT_TYPES = "account_types";
1640
1641    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
1642
1643    /**
1644     * Activity Extra: The device identifier to act upon.
1645     * <p>
1646     * This can be passed as an extra field in an Activity Intent with a single
1647     * InputDeviceIdentifier. This field is used by some activities to jump straight into the
1648     * settings for the given device.
1649     * <p>
1650     * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
1651     * dialog for the given device.
1652     * @hide
1653     */
1654    public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";
1655
1656    /**
1657     * Activity Extra: Enable or disable Airplane Mode.
1658     * <p>
1659     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
1660     * intent as a boolean to indicate if it should be enabled.
1661     */
1662    public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";
1663
1664    /**
1665     * Activity Extra: Enable or disable Battery saver mode.
1666     * <p>
1667     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
1668     * intent as a boolean to indicate if it should be enabled.
1669     */
1670    public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
1671            "android.settings.extra.battery_saver_mode_enabled";
1672
1673    /**
1674     * Activity Extra: Enable or disable Do Not Disturb mode.
1675     * <p>
1676     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1677     * intent as a boolean to indicate if it should be enabled.
1678     */
1679    public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
1680            "android.settings.extra.do_not_disturb_mode_enabled";
1681
1682    /**
1683     * Activity Extra: How many minutes to enable do not disturb mode for.
1684     * <p>
1685     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1686     * intent to indicate how long do not disturb mode should be enabled for.
1687     */
1688    public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
1689            "android.settings.extra.do_not_disturb_mode_minutes";
1690
1691    /**
1692     * Reset mode: reset to defaults only settings changed by the
1693     * calling package. If there is a default set the setting
1694     * will be set to it, otherwise the setting will be deleted.
1695     * This is the only type of reset available to non-system clients.
1696     * @hide
1697     */
1698    public static final int RESET_MODE_PACKAGE_DEFAULTS = 1;
1699
1700    /**
1701     * Reset mode: reset all settings set by untrusted packages, which is
1702     * packages that aren't a part of the system, to the current defaults.
1703     * If there is a default set the setting will be set to it, otherwise
1704     * the setting will be deleted. This mode is only available to the system.
1705     * @hide
1706     */
1707    public static final int RESET_MODE_UNTRUSTED_DEFAULTS = 2;
1708
1709    /**
1710     * Reset mode: delete all settings set by untrusted packages, which is
1711     * packages that aren't a part of the system. If a setting is set by an
1712     * untrusted package it will be deleted if its default is not provided
1713     * by the system, otherwise the setting will be set to its default.
1714     * This mode is only available to the system.
1715     * @hide
1716     */
1717    public static final int RESET_MODE_UNTRUSTED_CHANGES = 3;
1718
1719    /**
1720     * Reset mode: reset all settings to defaults specified by trusted
1721     * packages, which is packages that are a part of the system, and
1722     * delete all settings set by untrusted packages. If a setting has
1723     * a default set by a system package it will be set to the default,
1724     * otherwise the setting will be deleted. This mode is only available
1725     * to the system.
1726     * @hide
1727     */
1728    public static final int RESET_MODE_TRUSTED_DEFAULTS = 4;
1729
1730    /** @hide */
1731    @Retention(RetentionPolicy.SOURCE)
1732    @IntDef(prefix = { "RESET_MODE_" }, value = {
1733            RESET_MODE_PACKAGE_DEFAULTS,
1734            RESET_MODE_UNTRUSTED_DEFAULTS,
1735            RESET_MODE_UNTRUSTED_CHANGES,
1736            RESET_MODE_TRUSTED_DEFAULTS
1737    })
1738    public @interface ResetMode{}
1739
1740
1741    /**
1742     * User has not started setup personalization.
1743     * @hide
1744     */
1745    public static final int USER_SETUP_PERSONALIZATION_NOT_STARTED = 0;
1746
1747    /**
1748     * User has not yet completed setup personalization.
1749     * @hide
1750     */
1751    public static final int USER_SETUP_PERSONALIZATION_STARTED = 1;
1752
1753    /**
1754     * User has completed setup personalization.
1755     * @hide
1756     */
1757    public static final int USER_SETUP_PERSONALIZATION_COMPLETE = 10;
1758
1759    /** @hide */
1760    @Retention(RetentionPolicy.SOURCE)
1761    @IntDef({
1762            USER_SETUP_PERSONALIZATION_NOT_STARTED,
1763            USER_SETUP_PERSONALIZATION_STARTED,
1764            USER_SETUP_PERSONALIZATION_COMPLETE
1765    })
1766    public @interface UserSetupPersonalization {}
1767
1768    /**
1769     * Activity Extra: Number of certificates
1770     * <p>
1771     * This can be passed as an extra field to the {@link #ACTION_MONITORING_CERT_INFO}
1772     * intent to indicate the number of certificates
1773     * @hide
1774     */
1775    public static final String EXTRA_NUMBER_OF_CERTIFICATES =
1776            "android.settings.extra.number_of_certificates";
1777
1778    private static final String JID_RESOURCE_PREFIX = "android";
1779
1780    public static final String AUTHORITY = "settings";
1781
1782    private static final String TAG = "Settings";
1783    private static final boolean LOCAL_LOGV = false;
1784
1785    // Lock ensures that when enabling/disabling the master location switch, we don't end up
1786    // with a partial enable/disable state in multi-threaded situations.
1787    private static final Object mLocationSettingsLock = new Object();
1788
1789    // Used in system server calling uid workaround in call()
1790    private static boolean sInSystemServer = false;
1791    private static final Object sInSystemServerLock = new Object();
1792
1793    /** @hide */
1794    public static void setInSystemServer() {
1795        synchronized (sInSystemServerLock) {
1796            sInSystemServer = true;
1797        }
1798    }
1799
1800    /** @hide */
1801    public static boolean isInSystemServer() {
1802        synchronized (sInSystemServerLock) {
1803            return sInSystemServer;
1804        }
1805    }
1806
1807    public static class SettingNotFoundException extends AndroidException {
1808        public SettingNotFoundException(String msg) {
1809            super(msg);
1810        }
1811    }
1812
1813    /**
1814     * Common base for tables of name/value settings.
1815     */
1816    public static class NameValueTable implements BaseColumns {
1817        public static final String NAME = "name";
1818        public static final String VALUE = "value";
1819
1820        protected static boolean putString(ContentResolver resolver, Uri uri,
1821                String name, String value) {
1822            // The database will take care of replacing duplicates.
1823            try {
1824                ContentValues values = new ContentValues();
1825                values.put(NAME, name);
1826                values.put(VALUE, value);
1827                resolver.insert(uri, values);
1828                return true;
1829            } catch (SQLException e) {
1830                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
1831                return false;
1832            }
1833        }
1834
1835        public static Uri getUriFor(Uri uri, String name) {
1836            return Uri.withAppendedPath(uri, name);
1837        }
1838    }
1839
1840    private static final class GenerationTracker {
1841        private final MemoryIntArray mArray;
1842        private final Runnable mErrorHandler;
1843        private final int mIndex;
1844        private int mCurrentGeneration;
1845
1846        public GenerationTracker(@NonNull MemoryIntArray array, int index,
1847                int generation, Runnable errorHandler) {
1848            mArray = array;
1849            mIndex = index;
1850            mErrorHandler = errorHandler;
1851            mCurrentGeneration = generation;
1852        }
1853
1854        public boolean isGenerationChanged() {
1855            final int currentGeneration = readCurrentGeneration();
1856            if (currentGeneration >= 0) {
1857                if (currentGeneration == mCurrentGeneration) {
1858                    return false;
1859                }
1860                mCurrentGeneration = currentGeneration;
1861            }
1862            return true;
1863        }
1864
1865        public int getCurrentGeneration() {
1866            return mCurrentGeneration;
1867        }
1868
1869        private int readCurrentGeneration() {
1870            try {
1871                return mArray.get(mIndex);
1872            } catch (IOException e) {
1873                Log.e(TAG, "Error getting current generation", e);
1874                if (mErrorHandler != null) {
1875                    mErrorHandler.run();
1876                }
1877            }
1878            return -1;
1879        }
1880
1881        public void destroy() {
1882            try {
1883                mArray.close();
1884            } catch (IOException e) {
1885                Log.e(TAG, "Error closing backing array", e);
1886                if (mErrorHandler != null) {
1887                    mErrorHandler.run();
1888                }
1889            }
1890        }
1891    }
1892
1893    private static final class ContentProviderHolder {
1894        private final Object mLock = new Object();
1895
1896        @GuardedBy("mLock")
1897        private final Uri mUri;
1898        @GuardedBy("mLock")
1899        private IContentProvider mContentProvider;
1900
1901        public ContentProviderHolder(Uri uri) {
1902            mUri = uri;
1903        }
1904
1905        public IContentProvider getProvider(ContentResolver contentResolver) {
1906            synchronized (mLock) {
1907                if (mContentProvider == null) {
1908                    mContentProvider = contentResolver
1909                            .acquireProvider(mUri.getAuthority());
1910                }
1911                return mContentProvider;
1912            }
1913        }
1914
1915        public void clearProviderForTest() {
1916            synchronized (mLock) {
1917                mContentProvider = null;
1918            }
1919        }
1920    }
1921
1922    // Thread-safe.
1923    private static class NameValueCache {
1924        private static final boolean DEBUG = false;
1925
1926        private static final String[] SELECT_VALUE_PROJECTION = new String[] {
1927                Settings.NameValueTable.VALUE
1928        };
1929
1930        private static final String NAME_EQ_PLACEHOLDER = "name=?";
1931
1932        // Must synchronize on 'this' to access mValues and mValuesVersion.
1933        private final HashMap<String, String> mValues = new HashMap<>();
1934
1935        private final Uri mUri;
1936        private final ContentProviderHolder mProviderHolder;
1937
1938        // The method we'll call (or null, to not use) on the provider
1939        // for the fast path of retrieving settings.
1940        private final String mCallGetCommand;
1941        private final String mCallSetCommand;
1942
1943        @GuardedBy("this")
1944        private GenerationTracker mGenerationTracker;
1945
1946        public NameValueCache(Uri uri, String getCommand, String setCommand,
1947                ContentProviderHolder providerHolder) {
1948            mUri = uri;
1949            mCallGetCommand = getCommand;
1950            mCallSetCommand = setCommand;
1951            mProviderHolder = providerHolder;
1952        }
1953
1954        public boolean putStringForUser(ContentResolver cr, String name, String value,
1955                String tag, boolean makeDefault, final int userHandle) {
1956            try {
1957                Bundle arg = new Bundle();
1958                arg.putString(Settings.NameValueTable.VALUE, value);
1959                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
1960                if (tag != null) {
1961                    arg.putString(CALL_METHOD_TAG_KEY, tag);
1962                }
1963                if (makeDefault) {
1964                    arg.putBoolean(CALL_METHOD_MAKE_DEFAULT_KEY, true);
1965                }
1966                IContentProvider cp = mProviderHolder.getProvider(cr);
1967                cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
1968            } catch (RemoteException e) {
1969                Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
1970                return false;
1971            }
1972            return true;
1973        }
1974
1975        public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
1976            final boolean isSelf = (userHandle == UserHandle.myUserId());
1977            int currentGeneration = -1;
1978            if (isSelf) {
1979                synchronized (NameValueCache.this) {
1980                    if (mGenerationTracker != null) {
1981                        if (mGenerationTracker.isGenerationChanged()) {
1982                            if (DEBUG) {
1983                                Log.i(TAG, "Generation changed for type:"
1984                                        + mUri.getPath() + " in package:"
1985                                        + cr.getPackageName() +" and user:" + userHandle);
1986                            }
1987                            mValues.clear();
1988                        } else if (mValues.containsKey(name)) {
1989                            return mValues.get(name);
1990                        }
1991                        if (mGenerationTracker != null) {
1992                            currentGeneration = mGenerationTracker.getCurrentGeneration();
1993                        }
1994                    }
1995                }
1996            } else {
1997                if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
1998                        + " by user " + UserHandle.myUserId() + " so skipping cache");
1999            }
2000
2001            IContentProvider cp = mProviderHolder.getProvider(cr);
2002
2003            // Try the fast path first, not using query().  If this
2004            // fails (alternate Settings provider that doesn't support
2005            // this interface?) then we fall back to the query/table
2006            // interface.
2007            if (mCallGetCommand != null) {
2008                try {
2009                    Bundle args = null;
2010                    if (!isSelf) {
2011                        args = new Bundle();
2012                        args.putInt(CALL_METHOD_USER_KEY, userHandle);
2013                    }
2014                    boolean needsGenerationTracker = false;
2015                    synchronized (NameValueCache.this) {
2016                        if (isSelf && mGenerationTracker == null) {
2017                            needsGenerationTracker = true;
2018                            if (args == null) {
2019                                args = new Bundle();
2020                            }
2021                            args.putString(CALL_METHOD_TRACK_GENERATION_KEY, null);
2022                            if (DEBUG) {
2023                                Log.i(TAG, "Requested generation tracker for type: "+ mUri.getPath()
2024                                        + " in package:" + cr.getPackageName() +" and user:"
2025                                        + userHandle);
2026                            }
2027                        }
2028                    }
2029                    Bundle b;
2030                    // If we're in system server and in a binder transaction we need to clear the
2031                    // calling uid. This works around code in system server that did not call
2032                    // clearCallingIdentity, previously this wasn't needed because reading settings
2033                    // did not do permission checking but thats no longer the case.
2034                    // Long term this should be removed and callers should properly call
2035                    // clearCallingIdentity or use a ContentResolver from the caller as needed.
2036                    if (Settings.isInSystemServer() && Binder.getCallingUid() != Process.myUid()) {
2037                        final long token = Binder.clearCallingIdentity();
2038                        try {
2039                            b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
2040                        } finally {
2041                            Binder.restoreCallingIdentity(token);
2042                        }
2043                    } else {
2044                        b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
2045                    }
2046                    if (b != null) {
2047                        String value = b.getString(Settings.NameValueTable.VALUE);
2048                        // Don't update our cache for reads of other users' data
2049                        if (isSelf) {
2050                            synchronized (NameValueCache.this) {
2051                                if (needsGenerationTracker) {
2052                                    MemoryIntArray array = b.getParcelable(
2053                                            CALL_METHOD_TRACK_GENERATION_KEY);
2054                                    final int index = b.getInt(
2055                                            CALL_METHOD_GENERATION_INDEX_KEY, -1);
2056                                    if (array != null && index >= 0) {
2057                                        final int generation = b.getInt(
2058                                                CALL_METHOD_GENERATION_KEY, 0);
2059                                        if (DEBUG) {
2060                                            Log.i(TAG, "Received generation tracker for type:"
2061                                                    + mUri.getPath() + " in package:"
2062                                                    + cr.getPackageName() + " and user:"
2063                                                    + userHandle + " with index:" + index);
2064                                        }
2065                                        if (mGenerationTracker != null) {
2066                                            mGenerationTracker.destroy();
2067                                        }
2068                                        mGenerationTracker = new GenerationTracker(array, index,
2069                                                generation, () -> {
2070                                            synchronized (NameValueCache.this) {
2071                                                Log.e(TAG, "Error accessing generation"
2072                                                        + " tracker - removing");
2073                                                if (mGenerationTracker != null) {
2074                                                    GenerationTracker generationTracker =
2075                                                            mGenerationTracker;
2076                                                    mGenerationTracker = null;
2077                                                    generationTracker.destroy();
2078                                                    mValues.clear();
2079                                                }
2080                                            }
2081                                        });
2082                                    }
2083                                }
2084                                if (mGenerationTracker != null && currentGeneration ==
2085                                        mGenerationTracker.getCurrentGeneration()) {
2086                                    mValues.put(name, value);
2087                                }
2088                            }
2089                        } else {
2090                            if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
2091                                    + " by " + UserHandle.myUserId()
2092                                    + " so not updating cache");
2093                        }
2094                        return value;
2095                    }
2096                    // If the response Bundle is null, we fall through
2097                    // to the query interface below.
2098                } catch (RemoteException e) {
2099                    // Not supported by the remote side?  Fall through
2100                    // to query().
2101                }
2102            }
2103
2104            Cursor c = null;
2105            try {
2106                Bundle queryArgs = ContentResolver.createSqlQueryBundle(
2107                        NAME_EQ_PLACEHOLDER, new String[]{name}, null);
2108                // Same workaround as above.
2109                if (Settings.isInSystemServer() && Binder.getCallingUid() != Process.myUid()) {
2110                    final long token = Binder.clearCallingIdentity();
2111                    try {
2112                        c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE_PROJECTION, queryArgs,
2113                                null);
2114                    } finally {
2115                        Binder.restoreCallingIdentity(token);
2116                    }
2117                } else {
2118                    c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE_PROJECTION, queryArgs,
2119                            null);
2120                }
2121                if (c == null) {
2122                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
2123                    return null;
2124                }
2125
2126                String value = c.moveToNext() ? c.getString(0) : null;
2127                synchronized (NameValueCache.this) {
2128                    if(mGenerationTracker != null &&
2129                            currentGeneration == mGenerationTracker.getCurrentGeneration()) {
2130                        mValues.put(name, value);
2131                    }
2132                }
2133                if (LOCAL_LOGV) {
2134                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
2135                            name + " = " + (value == null ? "(null)" : value));
2136                }
2137                return value;
2138            } catch (RemoteException e) {
2139                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
2140                return null;  // Return null, but don't cache it.
2141            } finally {
2142                if (c != null) c.close();
2143            }
2144        }
2145
2146        public void clearGenerationTrackerForTest() {
2147            synchronized (NameValueCache.this) {
2148                if (mGenerationTracker != null) {
2149                    mGenerationTracker.destroy();
2150                }
2151                mValues.clear();
2152                mGenerationTracker = null;
2153            }
2154        }
2155    }
2156
2157    /**
2158     * Checks if the specified context can draw on top of other apps. As of API
2159     * level 23, an app cannot draw on top of other apps unless it declares the
2160     * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its
2161     * manifest, <em>and</em> the user specifically grants the app this
2162     * capability. To prompt the user to grant this approval, the app must send an
2163     * intent with the action
2164     * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}, which
2165     * causes the system to display a permission management screen.
2166     *
2167     * @param context App context.
2168     * @return true if the specified context can draw on top of other apps, false otherwise
2169     */
2170    public static boolean canDrawOverlays(Context context) {
2171        return Settings.isCallingPackageAllowedToDrawOverlays(context, Process.myUid(),
2172                context.getOpPackageName(), false);
2173    }
2174
2175    /**
2176     * System settings, containing miscellaneous system preferences.  This
2177     * table holds simple name/value pairs.  There are convenience
2178     * functions for accessing individual settings entries.
2179     */
2180    public static final class System extends NameValueTable {
2181        // NOTE: If you add new settings here, be sure to add them to
2182        // com.android.providers.settings.SettingsProtoDumpUtil#dumpProtoSystemSettingsLocked.
2183
2184        private static final float DEFAULT_FONT_SCALE = 1.0f;
2185
2186        /**
2187         * The content:// style URL for this table
2188         */
2189        public static final Uri CONTENT_URI =
2190            Uri.parse("content://" + AUTHORITY + "/system");
2191
2192        private static final ContentProviderHolder sProviderHolder =
2193                new ContentProviderHolder(CONTENT_URI);
2194
2195        private static final NameValueCache sNameValueCache = new NameValueCache(
2196                CONTENT_URI,
2197                CALL_METHOD_GET_SYSTEM,
2198                CALL_METHOD_PUT_SYSTEM,
2199                sProviderHolder);
2200
2201        private static final HashSet<String> MOVED_TO_SECURE;
2202        static {
2203            MOVED_TO_SECURE = new HashSet<>(30);
2204            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
2205            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
2206            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
2207            MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
2208            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
2209            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
2210            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
2211            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
2212            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
2213            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
2214            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
2215            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
2216            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
2217            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
2218            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
2219            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
2220            MOVED_TO_SECURE.add(Secure.WIFI_ON);
2221            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
2222            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
2223            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
2224            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
2225            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
2226            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
2227            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
2228            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
2229            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
2230            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
2231            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
2232
2233            // At one time in System, then Global, but now back in Secure
2234            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
2235        }
2236
2237        private static final HashSet<String> MOVED_TO_GLOBAL;
2238        private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
2239        static {
2240            MOVED_TO_GLOBAL = new HashSet<>();
2241            MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<>();
2242
2243            // these were originally in system but migrated to secure in the past,
2244            // so are duplicated in the Secure.* namespace
2245            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
2246            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
2247            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
2248            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
2249            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
2250            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);
2251
2252            // these are moving directly from system to global
2253            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
2254            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
2255            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
2256            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
2257            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
2258            MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
2259            MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
2260            MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
2261            MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
2262            MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
2263            MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
2264            MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
2265            MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
2266            MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
2267            MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
2268            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
2269            MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
2270            MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
2271            MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
2272            MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
2273            MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
2274            MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
2275            MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
2276            MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
2277            MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
2278            MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
2279            MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
2280            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
2281            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
2282            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
2283            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
2284            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
2285            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
2286            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
2287            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
2288        }
2289
2290        /** @hide */
2291        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
2292            outKeySet.addAll(MOVED_TO_GLOBAL);
2293            outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
2294        }
2295
2296        /** @hide */
2297        public static void getMovedToSecureSettings(Set<String> outKeySet) {
2298            outKeySet.addAll(MOVED_TO_SECURE);
2299        }
2300
2301        /** @hide */
2302        public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
2303            outKeySet.addAll(MOVED_TO_GLOBAL);
2304        }
2305
2306        /** @hide */
2307        public static void clearProviderForTest() {
2308            sProviderHolder.clearProviderForTest();
2309            sNameValueCache.clearGenerationTrackerForTest();
2310        }
2311
2312        /**
2313         * Look up a name in the database.
2314         * @param resolver to access the database with
2315         * @param name to look up in the table
2316         * @return the corresponding value, or null if not present
2317         */
2318        public static String getString(ContentResolver resolver, String name) {
2319            return getStringForUser(resolver, name, resolver.getUserId());
2320        }
2321
2322        /** @hide */
2323        public static String getStringForUser(ContentResolver resolver, String name,
2324                int userHandle) {
2325            if (MOVED_TO_SECURE.contains(name)) {
2326                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2327                        + " to android.provider.Settings.Secure, returning read-only value.");
2328                return Secure.getStringForUser(resolver, name, userHandle);
2329            }
2330            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
2331                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2332                        + " to android.provider.Settings.Global, returning read-only value.");
2333                return Global.getStringForUser(resolver, name, userHandle);
2334            }
2335            return sNameValueCache.getStringForUser(resolver, name, userHandle);
2336        }
2337
2338        /**
2339         * Store a name/value pair into the database.
2340         * @param resolver to access the database with
2341         * @param name to store
2342         * @param value to associate with the name
2343         * @return true if the value was set, false on database errors
2344         */
2345        public static boolean putString(ContentResolver resolver, String name, String value) {
2346            return putStringForUser(resolver, name, value, resolver.getUserId());
2347        }
2348
2349        /** @hide */
2350        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
2351                int userHandle) {
2352            if (MOVED_TO_SECURE.contains(name)) {
2353                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2354                        + " to android.provider.Settings.Secure, value is unchanged.");
2355                return false;
2356            }
2357            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
2358                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2359                        + " to android.provider.Settings.Global, value is unchanged.");
2360                return false;
2361            }
2362            return sNameValueCache.putStringForUser(resolver, name, value, null, false, userHandle);
2363        }
2364
2365        /**
2366         * Construct the content URI for a particular name/value pair,
2367         * useful for monitoring changes with a ContentObserver.
2368         * @param name to look up in the table
2369         * @return the corresponding content URI, or null if not present
2370         */
2371        public static Uri getUriFor(String name) {
2372            if (MOVED_TO_SECURE.contains(name)) {
2373                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2374                    + " to android.provider.Settings.Secure, returning Secure URI.");
2375                return Secure.getUriFor(Secure.CONTENT_URI, name);
2376            }
2377            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
2378                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2379                        + " to android.provider.Settings.Global, returning read-only global URI.");
2380                return Global.getUriFor(Global.CONTENT_URI, name);
2381            }
2382            return getUriFor(CONTENT_URI, name);
2383        }
2384
2385        /**
2386         * Convenience function for retrieving a single system settings value
2387         * as an integer.  Note that internally setting values are always
2388         * stored as strings; this function converts the string to an integer
2389         * for you.  The default value will be returned if the setting is
2390         * not defined or not an integer.
2391         *
2392         * @param cr The ContentResolver to access.
2393         * @param name The name of the setting to retrieve.
2394         * @param def Value to return if the setting is not defined.
2395         *
2396         * @return The setting's current value, or 'def' if it is not defined
2397         * or not a valid integer.
2398         */
2399        public static int getInt(ContentResolver cr, String name, int def) {
2400            return getIntForUser(cr, name, def, cr.getUserId());
2401        }
2402
2403        /** @hide */
2404        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
2405            String v = getStringForUser(cr, name, userHandle);
2406            try {
2407                return v != null ? Integer.parseInt(v) : def;
2408            } catch (NumberFormatException e) {
2409                return def;
2410            }
2411        }
2412
2413        /**
2414         * Convenience function for retrieving a single system settings value
2415         * as an integer.  Note that internally setting values are always
2416         * stored as strings; this function converts the string to an integer
2417         * for you.
2418         * <p>
2419         * This version does not take a default value.  If the setting has not
2420         * been set, or the string value is not a number,
2421         * it throws {@link SettingNotFoundException}.
2422         *
2423         * @param cr The ContentResolver to access.
2424         * @param name The name of the setting to retrieve.
2425         *
2426         * @throws SettingNotFoundException Thrown if a setting by the given
2427         * name can't be found or the setting value is not an integer.
2428         *
2429         * @return The setting's current value.
2430         */
2431        public static int getInt(ContentResolver cr, String name)
2432                throws SettingNotFoundException {
2433            return getIntForUser(cr, name, cr.getUserId());
2434        }
2435
2436        /** @hide */
2437        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
2438                throws SettingNotFoundException {
2439            String v = getStringForUser(cr, name, userHandle);
2440            try {
2441                return Integer.parseInt(v);
2442            } catch (NumberFormatException e) {
2443                throw new SettingNotFoundException(name);
2444            }
2445        }
2446
2447        /**
2448         * Convenience function for updating a single settings value as an
2449         * integer. This will either create a new entry in the table if the
2450         * given name does not exist, or modify the value of the existing row
2451         * with that name.  Note that internally setting values are always
2452         * stored as strings, so this function converts the given value to a
2453         * string before storing it.
2454         *
2455         * @param cr The ContentResolver to access.
2456         * @param name The name of the setting to modify.
2457         * @param value The new value for the setting.
2458         * @return true if the value was set, false on database errors
2459         */
2460        public static boolean putInt(ContentResolver cr, String name, int value) {
2461            return putIntForUser(cr, name, value, cr.getUserId());
2462        }
2463
2464        /** @hide */
2465        public static boolean putIntForUser(ContentResolver cr, String name, int value,
2466                int userHandle) {
2467            return putStringForUser(cr, name, Integer.toString(value), userHandle);
2468        }
2469
2470        /**
2471         * Convenience function for retrieving a single system settings value
2472         * as a {@code long}.  Note that internally setting values are always
2473         * stored as strings; this function converts the string to a {@code long}
2474         * for you.  The default value will be returned if the setting is
2475         * not defined or not a {@code long}.
2476         *
2477         * @param cr The ContentResolver to access.
2478         * @param name The name of the setting to retrieve.
2479         * @param def Value to return if the setting is not defined.
2480         *
2481         * @return The setting's current value, or 'def' if it is not defined
2482         * or not a valid {@code long}.
2483         */
2484        public static long getLong(ContentResolver cr, String name, long def) {
2485            return getLongForUser(cr, name, def, cr.getUserId());
2486        }
2487
2488        /** @hide */
2489        public static long getLongForUser(ContentResolver cr, String name, long def,
2490                int userHandle) {
2491            String valString = getStringForUser(cr, name, userHandle);
2492            long value;
2493            try {
2494                value = valString != null ? Long.parseLong(valString) : def;
2495            } catch (NumberFormatException e) {
2496                value = def;
2497            }
2498            return value;
2499        }
2500
2501        /**
2502         * Convenience function for retrieving a single system settings value
2503         * as a {@code long}.  Note that internally setting values are always
2504         * stored as strings; this function converts the string to a {@code long}
2505         * for you.
2506         * <p>
2507         * This version does not take a default value.  If the setting has not
2508         * been set, or the string value is not a number,
2509         * it throws {@link SettingNotFoundException}.
2510         *
2511         * @param cr The ContentResolver to access.
2512         * @param name The name of the setting to retrieve.
2513         *
2514         * @return The setting's current value.
2515         * @throws SettingNotFoundException Thrown if a setting by the given
2516         * name can't be found or the setting value is not an integer.
2517         */
2518        public static long getLong(ContentResolver cr, String name)
2519                throws SettingNotFoundException {
2520            return getLongForUser(cr, name, cr.getUserId());
2521        }
2522
2523        /** @hide */
2524        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
2525                throws SettingNotFoundException {
2526            String valString = getStringForUser(cr, name, userHandle);
2527            try {
2528                return Long.parseLong(valString);
2529            } catch (NumberFormatException e) {
2530                throw new SettingNotFoundException(name);
2531            }
2532        }
2533
2534        /**
2535         * Convenience function for updating a single settings value as a long
2536         * integer. This will either create a new entry in the table if the
2537         * given name does not exist, or modify the value of the existing row
2538         * with that name.  Note that internally setting values are always
2539         * stored as strings, so this function converts the given value to a
2540         * string before storing it.
2541         *
2542         * @param cr The ContentResolver to access.
2543         * @param name The name of the setting to modify.
2544         * @param value The new value for the setting.
2545         * @return true if the value was set, false on database errors
2546         */
2547        public static boolean putLong(ContentResolver cr, String name, long value) {
2548            return putLongForUser(cr, name, value, cr.getUserId());
2549        }
2550
2551        /** @hide */
2552        public static boolean putLongForUser(ContentResolver cr, String name, long value,
2553                int userHandle) {
2554            return putStringForUser(cr, name, Long.toString(value), userHandle);
2555        }
2556
2557        /**
2558         * Convenience function for retrieving a single system settings value
2559         * as a floating point number.  Note that internally setting values are
2560         * always stored as strings; this function converts the string to an
2561         * float for you. The default value will be returned if the setting
2562         * is not defined or not a valid float.
2563         *
2564         * @param cr The ContentResolver to access.
2565         * @param name The name of the setting to retrieve.
2566         * @param def Value to return if the setting is not defined.
2567         *
2568         * @return The setting's current value, or 'def' if it is not defined
2569         * or not a valid float.
2570         */
2571        public static float getFloat(ContentResolver cr, String name, float def) {
2572            return getFloatForUser(cr, name, def, cr.getUserId());
2573        }
2574
2575        /** @hide */
2576        public static float getFloatForUser(ContentResolver cr, String name, float def,
2577                int userHandle) {
2578            String v = getStringForUser(cr, name, userHandle);
2579            try {
2580                return v != null ? Float.parseFloat(v) : def;
2581            } catch (NumberFormatException e) {
2582                return def;
2583            }
2584        }
2585
2586        /**
2587         * Convenience function for retrieving a single system settings value
2588         * as a float.  Note that internally setting values are always
2589         * stored as strings; this function converts the string to a float
2590         * for you.
2591         * <p>
2592         * This version does not take a default value.  If the setting has not
2593         * been set, or the string value is not a number,
2594         * it throws {@link SettingNotFoundException}.
2595         *
2596         * @param cr The ContentResolver to access.
2597         * @param name The name of the setting to retrieve.
2598         *
2599         * @throws SettingNotFoundException Thrown if a setting by the given
2600         * name can't be found or the setting value is not a float.
2601         *
2602         * @return The setting's current value.
2603         */
2604        public static float getFloat(ContentResolver cr, String name)
2605                throws SettingNotFoundException {
2606            return getFloatForUser(cr, name, cr.getUserId());
2607        }
2608
2609        /** @hide */
2610        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
2611                throws SettingNotFoundException {
2612            String v = getStringForUser(cr, name, userHandle);
2613            if (v == null) {
2614                throw new SettingNotFoundException(name);
2615            }
2616            try {
2617                return Float.parseFloat(v);
2618            } catch (NumberFormatException e) {
2619                throw new SettingNotFoundException(name);
2620            }
2621        }
2622
2623        /**
2624         * Convenience function for updating a single settings value as a
2625         * floating point number. This will either create a new entry in the
2626         * table if the given name does not exist, or modify the value of the
2627         * existing row with that name.  Note that internally setting values
2628         * are always stored as strings, so this function converts the given
2629         * value to a string before storing it.
2630         *
2631         * @param cr The ContentResolver to access.
2632         * @param name The name of the setting to modify.
2633         * @param value The new value for the setting.
2634         * @return true if the value was set, false on database errors
2635         */
2636        public static boolean putFloat(ContentResolver cr, String name, float value) {
2637            return putFloatForUser(cr, name, value, cr.getUserId());
2638        }
2639
2640        /** @hide */
2641        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
2642                int userHandle) {
2643            return putStringForUser(cr, name, Float.toString(value), userHandle);
2644        }
2645
2646        /**
2647         * Convenience function to read all of the current
2648         * configuration-related settings into a
2649         * {@link Configuration} object.
2650         *
2651         * @param cr The ContentResolver to access.
2652         * @param outConfig Where to place the configuration settings.
2653         */
2654        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
2655            adjustConfigurationForUser(cr, outConfig, cr.getUserId(),
2656                    false /* updateSettingsIfEmpty */);
2657        }
2658
2659        /** @hide */
2660        public static void adjustConfigurationForUser(ContentResolver cr, Configuration outConfig,
2661                int userHandle, boolean updateSettingsIfEmpty) {
2662            outConfig.fontScale = Settings.System.getFloatForUser(
2663                    cr, FONT_SCALE, DEFAULT_FONT_SCALE, userHandle);
2664            if (outConfig.fontScale < 0) {
2665                outConfig.fontScale = DEFAULT_FONT_SCALE;
2666            }
2667
2668            final String localeValue =
2669                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle);
2670            if (localeValue != null) {
2671                outConfig.setLocales(LocaleList.forLanguageTags(localeValue));
2672            } else {
2673                // Do not update configuration with emtpy settings since we need to take over the
2674                // locale list of previous user if the settings value is empty. This happens when a
2675                // new user is created.
2676
2677                if (updateSettingsIfEmpty) {
2678                    // Make current configuration persistent. This is necessary the first time a
2679                    // user log in. At the first login, the configuration settings are empty, so we
2680                    // need to store the adjusted configuration as the initial settings.
2681                    Settings.System.putStringForUser(
2682                            cr, SYSTEM_LOCALES, outConfig.getLocales().toLanguageTags(),
2683                            userHandle);
2684                }
2685            }
2686        }
2687
2688        /**
2689         * @hide Erase the fields in the Configuration that should be applied
2690         * by the settings.
2691         */
2692        public static void clearConfiguration(Configuration inoutConfig) {
2693            inoutConfig.fontScale = 0;
2694            if (!inoutConfig.userSetLocale && !inoutConfig.getLocales().isEmpty()) {
2695                inoutConfig.clearLocales();
2696            }
2697        }
2698
2699        /**
2700         * Convenience function to write a batch of configuration-related
2701         * settings from a {@link Configuration} object.
2702         *
2703         * @param cr The ContentResolver to access.
2704         * @param config The settings to write.
2705         * @return true if the values were set, false on database errors
2706         */
2707        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
2708            return putConfigurationForUser(cr, config, cr.getUserId());
2709        }
2710
2711        /** @hide */
2712        public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
2713                int userHandle) {
2714            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
2715                    Settings.System.putStringForUser(
2716                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
2717        }
2718
2719        /** @hide */
2720        public static boolean hasInterestingConfigurationChanges(int changes) {
2721            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
2722                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
2723        }
2724
2725        /** @deprecated - Do not use */
2726        @Deprecated
2727        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
2728            return getShowGTalkServiceStatusForUser(cr, cr.getUserId());
2729        }
2730
2731        /**
2732         * @hide
2733         * @deprecated - Do not use
2734         */
2735        @Deprecated
2736        public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
2737                int userHandle) {
2738            return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
2739        }
2740
2741        /** @deprecated - Do not use */
2742        @Deprecated
2743        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
2744            setShowGTalkServiceStatusForUser(cr, flag, cr.getUserId());
2745        }
2746
2747        /**
2748         * @hide
2749         * @deprecated - Do not use
2750         */
2751        @Deprecated
2752        public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
2753                int userHandle) {
2754            putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
2755        }
2756
2757        /**
2758         * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
2759         */
2760        @Deprecated
2761        public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;
2762
2763        private static final Validator STAY_ON_WHILE_PLUGGED_IN_VALIDATOR = new Validator() {
2764            @Override
2765            public boolean validate(String value) {
2766                try {
2767                    int val = Integer.parseInt(value);
2768                    return (val == 0)
2769                            || (val == BatteryManager.BATTERY_PLUGGED_AC)
2770                            || (val == BatteryManager.BATTERY_PLUGGED_USB)
2771                            || (val == BatteryManager.BATTERY_PLUGGED_WIRELESS)
2772                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
2773                                    | BatteryManager.BATTERY_PLUGGED_USB))
2774                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
2775                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
2776                            || (val == (BatteryManager.BATTERY_PLUGGED_USB
2777                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
2778                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
2779                                    | BatteryManager.BATTERY_PLUGGED_USB
2780                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS));
2781                } catch (NumberFormatException e) {
2782                    return false;
2783                }
2784            }
2785        };
2786
2787        /**
2788         * What happens when the user presses the end call button if they're not
2789         * on a call.<br/>
2790         * <b>Values:</b><br/>
2791         * 0 - The end button does nothing.<br/>
2792         * 1 - The end button goes to the home screen.<br/>
2793         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
2794         * 3 - The end button goes to the home screen.  If the user is already on the
2795         * home screen, it puts the device to sleep.
2796         */
2797        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
2798
2799        private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
2800                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);
2801
2802        /**
2803         * END_BUTTON_BEHAVIOR value for "go home".
2804         * @hide
2805         */
2806        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
2807
2808        /**
2809         * END_BUTTON_BEHAVIOR value for "go to sleep".
2810         * @hide
2811         */
2812        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
2813
2814        /**
2815         * END_BUTTON_BEHAVIOR default value.
2816         * @hide
2817         */
2818        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
2819
2820        /**
2821         * Is advanced settings mode turned on. 0 == no, 1 == yes
2822         * @hide
2823         */
2824        public static final String ADVANCED_SETTINGS = "advanced_settings";
2825
2826        private static final Validator ADVANCED_SETTINGS_VALIDATOR = BOOLEAN_VALIDATOR;
2827
2828        /**
2829         * ADVANCED_SETTINGS default value.
2830         * @hide
2831         */
2832        public static final int ADVANCED_SETTINGS_DEFAULT = 0;
2833
2834        /**
2835         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
2836         */
2837        @Deprecated
2838        public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;
2839
2840        /**
2841         * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
2842         */
2843        @Deprecated
2844        public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;
2845
2846        /**
2847         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
2848         */
2849        @Deprecated
2850        public static final String RADIO_WIFI = Global.RADIO_WIFI;
2851
2852        /**
2853         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
2854         * {@hide}
2855         */
2856        @Deprecated
2857        public static final String RADIO_WIMAX = Global.RADIO_WIMAX;
2858
2859        /**
2860         * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
2861         */
2862        @Deprecated
2863        public static final String RADIO_CELL = Global.RADIO_CELL;
2864
2865        /**
2866         * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
2867         */
2868        @Deprecated
2869        public static final String RADIO_NFC = Global.RADIO_NFC;
2870
2871        /**
2872         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
2873         */
2874        @Deprecated
2875        public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;
2876
2877        /**
2878         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
2879         *
2880         * {@hide}
2881         */
2882        @Deprecated
2883        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
2884                Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;
2885
2886        /**
2887         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
2888         */
2889        @Deprecated
2890        public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;
2891
2892        /**
2893         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
2894         */
2895        @Deprecated
2896        public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;
2897
2898        /**
2899         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
2900         */
2901        @Deprecated
2902        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
2903                Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;
2904
2905        /**
2906         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
2907         */
2908        @Deprecated
2909        public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;
2910
2911        /**
2912         * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
2913         */
2914        @Deprecated
2915        public static final String MODE_RINGER = Global.MODE_RINGER;
2916
2917        /**
2918         * Whether to use static IP and other static network attributes.
2919         * <p>
2920         * Set to 1 for true and 0 for false.
2921         *
2922         * @deprecated Use {@link WifiManager} instead
2923         */
2924        @Deprecated
2925        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
2926
2927        private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = BOOLEAN_VALIDATOR;
2928
2929        /**
2930         * The static IP address.
2931         * <p>
2932         * Example: "192.168.1.51"
2933         *
2934         * @deprecated Use {@link WifiManager} instead
2935         */
2936        @Deprecated
2937        public static final String WIFI_STATIC_IP = "wifi_static_ip";
2938
2939        private static final Validator WIFI_STATIC_IP_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;
2940
2941        /**
2942         * If using static IP, the gateway's IP address.
2943         * <p>
2944         * Example: "192.168.1.1"
2945         *
2946         * @deprecated Use {@link WifiManager} instead
2947         */
2948        @Deprecated
2949        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
2950
2951        private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;
2952
2953        /**
2954         * If using static IP, the net mask.
2955         * <p>
2956         * Example: "255.255.255.0"
2957         *
2958         * @deprecated Use {@link WifiManager} instead
2959         */
2960        @Deprecated
2961        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
2962
2963        private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;
2964
2965        /**
2966         * If using static IP, the primary DNS's IP address.
2967         * <p>
2968         * Example: "192.168.1.1"
2969         *
2970         * @deprecated Use {@link WifiManager} instead
2971         */
2972        @Deprecated
2973        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
2974
2975        private static final Validator WIFI_STATIC_DNS1_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;
2976
2977        /**
2978         * If using static IP, the secondary DNS's IP address.
2979         * <p>
2980         * Example: "192.168.1.2"
2981         *
2982         * @deprecated Use {@link WifiManager} instead
2983         */
2984        @Deprecated
2985        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
2986
2987        private static final Validator WIFI_STATIC_DNS2_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;
2988
2989        /**
2990         * Determines whether remote devices may discover and/or connect to
2991         * this device.
2992         * <P>Type: INT</P>
2993         * 2 -- discoverable and connectable
2994         * 1 -- connectable but not discoverable
2995         * 0 -- neither connectable nor discoverable
2996         */
2997        public static final String BLUETOOTH_DISCOVERABILITY =
2998            "bluetooth_discoverability";
2999
3000        private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
3001                new SettingsValidators.InclusiveIntegerRangeValidator(0, 2);
3002
3003        /**
3004         * Bluetooth discoverability timeout.  If this value is nonzero, then
3005         * Bluetooth becomes discoverable for a certain number of seconds,
3006         * after which is becomes simply connectable.  The value is in seconds.
3007         */
3008        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
3009            "bluetooth_discoverability_timeout";
3010
3011        private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
3012                NON_NEGATIVE_INTEGER_VALIDATOR;
3013
3014        /**
3015         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
3016         * instead
3017         */
3018        @Deprecated
3019        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
3020
3021        /**
3022         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
3023         * instead
3024         */
3025        @Deprecated
3026        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
3027
3028        /**
3029         * @deprecated Use
3030         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
3031         * instead
3032         */
3033        @Deprecated
3034        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
3035            "lock_pattern_tactile_feedback_enabled";
3036
3037        /**
3038         * A formatted string of the next alarm that is set, or the empty string
3039         * if there is no alarm set.
3040         *
3041         * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
3042         */
3043        @Deprecated
3044        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
3045
3046        private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
3047            private static final int MAX_LENGTH = 1000;
3048
3049            @Override
3050            public boolean validate(String value) {
3051                // TODO: No idea what the correct format is.
3052                return value == null || value.length() < MAX_LENGTH;
3053            }
3054        };
3055
3056        /**
3057         * Scaling factor for fonts, float.
3058         */
3059        public static final String FONT_SCALE = "font_scale";
3060
3061        private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
3062            @Override
3063            public boolean validate(String value) {
3064                try {
3065                    return Float.parseFloat(value) >= 0;
3066                } catch (NumberFormatException e) {
3067                    return false;
3068                }
3069            }
3070        };
3071
3072        /**
3073         * The serialized system locale value.
3074         *
3075         * Do not use this value directory.
3076         * To get system locale, use {@link LocaleList#getDefault} instead.
3077         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
3078         * instead.
3079         * @hide
3080         */
3081        public static final String SYSTEM_LOCALES = "system_locales";
3082
3083
3084        /**
3085         * Name of an application package to be debugged.
3086         *
3087         * @deprecated Use {@link Global#DEBUG_APP} instead
3088         */
3089        @Deprecated
3090        public static final String DEBUG_APP = Global.DEBUG_APP;
3091
3092        /**
3093         * If 1, when launching DEBUG_APP it will wait for the debugger before
3094         * starting user code.  If 0, it will run normally.
3095         *
3096         * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
3097         */
3098        @Deprecated
3099        public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;
3100
3101        /**
3102         * Whether or not to dim the screen. 0=no  1=yes
3103         * @deprecated This setting is no longer used.
3104         */
3105        @Deprecated
3106        public static final String DIM_SCREEN = "dim_screen";
3107
3108        private static final Validator DIM_SCREEN_VALIDATOR = BOOLEAN_VALIDATOR;
3109
3110        /**
3111         * The display color mode.
3112         * @hide
3113         */
3114        public static final String DISPLAY_COLOR_MODE = "display_color_mode";
3115
3116        private static final Validator DISPLAY_COLOR_MODE_VALIDATOR =
3117                new SettingsValidators.InclusiveIntegerRangeValidator(0, 2);
3118
3119        /**
3120         * The amount of time in milliseconds before the device goes to sleep or begins
3121         * to dream after a period of inactivity.  This value is also known as the
3122         * user activity timeout period since the screen isn't necessarily turned off
3123         * when it expires.
3124         *
3125         * <p>
3126         * This value is bounded by maximum timeout set by
3127         * {@link android.app.admin.DevicePolicyManager#setMaximumTimeToLock(ComponentName, long)}.
3128         */
3129        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
3130
3131        private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR =
3132                NON_NEGATIVE_INTEGER_VALIDATOR;
3133
3134        /**
3135         * The screen backlight brightness between 0 and 255.
3136         */
3137        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
3138
3139        /**
3140         * The screen backlight brightness between 0 and 255.
3141         * @hide
3142         */
3143        public static final String SCREEN_BRIGHTNESS_FOR_VR = "screen_brightness_for_vr";
3144
3145        private static final Validator SCREEN_BRIGHTNESS_FOR_VR_VALIDATOR =
3146                new SettingsValidators.InclusiveIntegerRangeValidator(0, 255);
3147
3148        /**
3149         * Control whether to enable automatic brightness mode.
3150         */
3151        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
3152
3153        private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = BOOLEAN_VALIDATOR;
3154
3155        /**
3156         * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
3157         * or less (<0.0 >-1.0) bright.
3158         * @hide
3159         */
3160        public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";
3161
3162        private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
3163                new SettingsValidators.InclusiveFloatRangeValidator(-1, 1);
3164
3165        /**
3166         * SCREEN_BRIGHTNESS_MODE value for manual mode.
3167         */
3168        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
3169
3170        /**
3171         * SCREEN_BRIGHTNESS_MODE value for automatic mode.
3172         */
3173        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
3174
3175        /**
3176         * Control whether the process CPU usage meter should be shown.
3177         *
3178         * @deprecated This functionality is no longer available as of
3179         * {@link android.os.Build.VERSION_CODES#N_MR1}.
3180         */
3181        @Deprecated
3182        public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;
3183
3184        /**
3185         * If 1, the activity manager will aggressively finish activities and
3186         * processes as soon as they are no longer needed.  If 0, the normal
3187         * extended lifetime is used.
3188         *
3189         * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
3190         */
3191        @Deprecated
3192        public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;
3193
3194        /**
3195         * Determines which streams are affected by ringer and zen mode changes. The
3196         * stream type's bit should be set to 1 if it should be muted when going
3197         * into an inaudible ringer mode.
3198         */
3199        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
3200
3201        private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
3202                NON_NEGATIVE_INTEGER_VALIDATOR;
3203
3204        /**
3205          * Determines which streams are affected by mute. The
3206          * stream type's bit should be set to 1 if it should be muted when a mute request
3207          * is received.
3208          */
3209        public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
3210
3211        private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
3212                NON_NEGATIVE_INTEGER_VALIDATOR;
3213
3214        /**
3215         * Whether vibrate is on for different events. This is used internally,
3216         * changing this value will not change the vibrate. See AudioManager.
3217         */
3218        public static final String VIBRATE_ON = "vibrate_on";
3219
3220        private static final Validator VIBRATE_ON_VALIDATOR = BOOLEAN_VALIDATOR;
3221
3222        /**
3223         * If 1, redirects the system vibrator to all currently attached input devices
3224         * that support vibration.  If there are no such input devices, then the system
3225         * vibrator is used instead.
3226         * If 0, does not register the system vibrator.
3227         *
3228         * This setting is mainly intended to provide a compatibility mechanism for
3229         * applications that only know about the system vibrator and do not use the
3230         * input device vibrator API.
3231         *
3232         * @hide
3233         */
3234        public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";
3235
3236        private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = BOOLEAN_VALIDATOR;
3237
3238        /**
3239         * The intensity of notification vibrations, if configurable.
3240         *
3241         * Not all devices are capable of changing their vibration intensity; on these devices
3242         * there will likely be no difference between the various vibration intensities except for
3243         * intensity 0 (off) and the rest.
3244         *
3245         * <b>Values:</b><br/>
3246         * 0 - Vibration is disabled<br/>
3247         * 1 - Weak vibrations<br/>
3248         * 2 - Medium vibrations<br/>
3249         * 3 - Strong vibrations
3250         * @hide
3251         */
3252        public static final String NOTIFICATION_VIBRATION_INTENSITY =
3253                "notification_vibration_intensity";
3254
3255        /**
3256         * The intensity of haptic feedback vibrations, if configurable.
3257         *
3258         * Not all devices are capable of changing their feedback intensity; on these devices
3259         * there will likely be no difference between the various vibration intensities except for
3260         * intensity 0 (off) and the rest.
3261         *
3262         * <b>Values:</b><br/>
3263         * 0 - Vibration is disabled<br/>
3264         * 1 - Weak vibrations<br/>
3265         * 2 - Medium vibrations<br/>
3266         * 3 - Strong vibrations
3267         * @hide
3268         */
3269        public static final String HAPTIC_FEEDBACK_INTENSITY =
3270                "haptic_feedback_intensity";
3271
3272        private static final Validator VIBRATION_INTENSITY_VALIDATOR =
3273                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);
3274
3275        /**
3276         * Ringer volume. This is used internally, changing this value will not
3277         * change the volume. See AudioManager.
3278         *
3279         * @removed Not used by anything since API 2.
3280         */
3281        public static final String VOLUME_RING = "volume_ring";
3282
3283        /**
3284         * System/notifications volume. This is used internally, changing this
3285         * value will not change the volume. See AudioManager.
3286         *
3287         * @removed Not used by anything since API 2.
3288         */
3289        public static final String VOLUME_SYSTEM = "volume_system";
3290
3291        /**
3292         * Voice call volume. This is used internally, changing this value will
3293         * not change the volume. See AudioManager.
3294         *
3295         * @removed Not used by anything since API 2.
3296         */
3297        public static final String VOLUME_VOICE = "volume_voice";
3298
3299        /**
3300         * Music/media/gaming volume. This is used internally, changing this
3301         * value will not change the volume. See AudioManager.
3302         *
3303         * @removed Not used by anything since API 2.
3304         */
3305        public static final String VOLUME_MUSIC = "volume_music";
3306
3307        /**
3308         * Alarm volume. This is used internally, changing this
3309         * value will not change the volume. See AudioManager.
3310         *
3311         * @removed Not used by anything since API 2.
3312         */
3313        public static final String VOLUME_ALARM = "volume_alarm";
3314
3315        /**
3316         * Notification volume. This is used internally, changing this
3317         * value will not change the volume. See AudioManager.
3318         *
3319         * @removed Not used by anything since API 2.
3320         */
3321        public static final String VOLUME_NOTIFICATION = "volume_notification";
3322
3323        /**
3324         * Bluetooth Headset volume. This is used internally, changing this value will
3325         * not change the volume. See AudioManager.
3326         *
3327         * @removed Not used by anything since API 2.
3328         */
3329        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
3330
3331        /**
3332         * @hide
3333         * Acessibility volume. This is used internally, changing this
3334         * value will not change the volume.
3335         */
3336        public static final String VOLUME_ACCESSIBILITY = "volume_a11y";
3337
3338        /**
3339         * Master volume (float in the range 0.0f to 1.0f).
3340         *
3341         * @hide
3342         */
3343        public static final String VOLUME_MASTER = "volume_master";
3344
3345        /**
3346         * Master mono (int 1 = mono, 0 = normal).
3347         *
3348         * @hide
3349         */
3350        public static final String MASTER_MONO = "master_mono";
3351
3352        private static final Validator MASTER_MONO_VALIDATOR = BOOLEAN_VALIDATOR;
3353
3354        /**
3355         * Whether the notifications should use the ring volume (value of 1) or
3356         * a separate notification volume (value of 0). In most cases, users
3357         * will have this enabled so the notification and ringer volumes will be
3358         * the same. However, power users can disable this and use the separate
3359         * notification volume control.
3360         * <p>
3361         * Note: This is a one-off setting that will be removed in the future
3362         * when there is profile support. For this reason, it is kept hidden
3363         * from the public APIs.
3364         *
3365         * @hide
3366         * @deprecated
3367         */
3368        @Deprecated
3369        public static final String NOTIFICATIONS_USE_RING_VOLUME =
3370            "notifications_use_ring_volume";
3371
3372        private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = BOOLEAN_VALIDATOR;
3373
3374        /**
3375         * Whether silent mode should allow vibration feedback. This is used
3376         * internally in AudioService and the Sound settings activity to
3377         * coordinate decoupling of vibrate and silent modes. This setting
3378         * will likely be removed in a future release with support for
3379         * audio/vibe feedback profiles.
3380         *
3381         * Not used anymore. On devices with vibrator, the user explicitly selects
3382         * silent or vibrate mode.
3383         * Kept for use by legacy database upgrade code in DatabaseHelper.
3384         * @hide
3385         */
3386        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
3387
3388        private static final Validator VIBRATE_IN_SILENT_VALIDATOR = BOOLEAN_VALIDATOR;
3389
3390        /**
3391         * The mapping of stream type (integer) to its setting.
3392         *
3393         * @removed  Not used by anything since API 2.
3394         */
3395        public static final String[] VOLUME_SETTINGS = {
3396            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
3397            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
3398        };
3399
3400        /**
3401         * @hide
3402         * The mapping of stream type (integer) to its setting.
3403         * Unlike the VOLUME_SETTINGS array, this one contains as many entries as
3404         * AudioSystem.NUM_STREAM_TYPES, and has empty strings for stream types whose volumes
3405         * are never persisted.
3406         */
3407        public static final String[] VOLUME_SETTINGS_INT = {
3408                VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
3409                VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO,
3410                "" /*STREAM_SYSTEM_ENFORCED, no setting for this stream*/,
3411                "" /*STREAM_DTMF, no setting for this stream*/,
3412                "" /*STREAM_TTS, no setting for this stream*/,
3413                VOLUME_ACCESSIBILITY
3414            };
3415
3416        /**
3417         * Appended to various volume related settings to record the previous
3418         * values before they the settings were affected by a silent/vibrate
3419         * ringer mode change.
3420         *
3421         * @removed  Not used by anything since API 2.
3422         */
3423        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
3424
3425        /**
3426         * Persistent store for the system-wide default ringtone URI.
3427         * <p>
3428         * If you need to play the default ringtone at any given time, it is recommended
3429         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
3430         * to the set default ringtone at the time of playing.
3431         *
3432         * @see #DEFAULT_RINGTONE_URI
3433         */
3434        public static final String RINGTONE = "ringtone";
3435
3436        private static final Validator RINGTONE_VALIDATOR = URI_VALIDATOR;
3437
3438        /**
3439         * A {@link Uri} that will point to the current default ringtone at any
3440         * given time.
3441         * <p>
3442         * If the current default ringtone is in the DRM provider and the caller
3443         * does not have permission, the exception will be a
3444         * FileNotFoundException.
3445         */
3446        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
3447
3448        /** {@hide} */
3449        public static final String RINGTONE_CACHE = "ringtone_cache";
3450        /** {@hide} */
3451        public static final Uri RINGTONE_CACHE_URI = getUriFor(RINGTONE_CACHE);
3452
3453        /**
3454         * Persistent store for the system-wide default notification sound.
3455         *
3456         * @see #RINGTONE
3457         * @see #DEFAULT_NOTIFICATION_URI
3458         */
3459        public static final String NOTIFICATION_SOUND = "notification_sound";
3460
3461        private static final Validator NOTIFICATION_SOUND_VALIDATOR = URI_VALIDATOR;
3462
3463        /**
3464         * A {@link Uri} that will point to the current default notification
3465         * sound at any given time.
3466         *
3467         * @see #DEFAULT_RINGTONE_URI
3468         */
3469        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
3470
3471        /** {@hide} */
3472        public static final String NOTIFICATION_SOUND_CACHE = "notification_sound_cache";
3473        /** {@hide} */
3474        public static final Uri NOTIFICATION_SOUND_CACHE_URI = getUriFor(NOTIFICATION_SOUND_CACHE);
3475
3476        /**
3477         * Persistent store for the system-wide default alarm alert.
3478         *
3479         * @see #RINGTONE
3480         * @see #DEFAULT_ALARM_ALERT_URI
3481         */
3482        public static final String ALARM_ALERT = "alarm_alert";
3483
3484        private static final Validator ALARM_ALERT_VALIDATOR = URI_VALIDATOR;
3485
3486        /**
3487         * A {@link Uri} that will point to the current default alarm alert at
3488         * any given time.
3489         *
3490         * @see #DEFAULT_ALARM_ALERT_URI
3491         */
3492        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
3493
3494        /** {@hide} */
3495        public static final String ALARM_ALERT_CACHE = "alarm_alert_cache";
3496        /** {@hide} */
3497        public static final Uri ALARM_ALERT_CACHE_URI = getUriFor(ALARM_ALERT_CACHE);
3498
3499        /**
3500         * Persistent store for the system default media button event receiver.
3501         *
3502         * @hide
3503         */
3504        public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";
3505
3506        private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = COMPONENT_NAME_VALIDATOR;
3507
3508        /**
3509         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
3510         */
3511        public static final String TEXT_AUTO_REPLACE = "auto_replace";
3512
3513        private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = BOOLEAN_VALIDATOR;
3514
3515        /**
3516         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
3517         */
3518        public static final String TEXT_AUTO_CAPS = "auto_caps";
3519
3520        private static final Validator TEXT_AUTO_CAPS_VALIDATOR = BOOLEAN_VALIDATOR;
3521
3522        /**
3523         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
3524         * feature converts two spaces to a "." and space.
3525         */
3526        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
3527
3528        private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = BOOLEAN_VALIDATOR;
3529
3530        /**
3531         * Setting to showing password characters in text editors. 1 = On, 0 = Off
3532         */
3533        public static final String TEXT_SHOW_PASSWORD = "show_password";
3534
3535        private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = BOOLEAN_VALIDATOR;
3536
3537        public static final String SHOW_GTALK_SERVICE_STATUS =
3538                "SHOW_GTALK_SERVICE_STATUS";
3539
3540        private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = BOOLEAN_VALIDATOR;
3541
3542        /**
3543         * Name of activity to use for wallpaper on the home screen.
3544         *
3545         * @deprecated Use {@link WallpaperManager} instead.
3546         */
3547        @Deprecated
3548        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
3549
3550        private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
3551            private static final int MAX_LENGTH = 1000;
3552
3553            @Override
3554            public boolean validate(String value) {
3555                if (value != null && value.length() > MAX_LENGTH) {
3556                    return false;
3557                }
3558                return ComponentName.unflattenFromString(value) != null;
3559            }
3560        };
3561
3562        /**
3563         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
3564         * instead
3565         */
3566        @Deprecated
3567        public static final String AUTO_TIME = Global.AUTO_TIME;
3568
3569        private static final Validator AUTO_TIME_VALIDATOR = BOOLEAN_VALIDATOR;
3570
3571        /**
3572         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
3573         * instead
3574         */
3575        @Deprecated
3576        public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;
3577
3578        private static final Validator AUTO_TIME_ZONE_VALIDATOR = BOOLEAN_VALIDATOR;
3579
3580        /**
3581         * Display times as 12 or 24 hours
3582         *   12
3583         *   24
3584         */
3585        public static final String TIME_12_24 = "time_12_24";
3586
3587        /** @hide */
3588        public static final Validator TIME_12_24_VALIDATOR =
3589                new SettingsValidators.DiscreteValueValidator(new String[] {"12", "24", null});
3590
3591        /**
3592         * Date format string
3593         *   mm/dd/yyyy
3594         *   dd/mm/yyyy
3595         *   yyyy/mm/dd
3596         */
3597        public static final String DATE_FORMAT = "date_format";
3598
3599        /** @hide */
3600        public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
3601            @Override
3602            public boolean validate(String value) {
3603                try {
3604                    new SimpleDateFormat(value);
3605                    return true;
3606                } catch (IllegalArgumentException e) {
3607                    return false;
3608                }
3609            }
3610        };
3611
3612        /**
3613         * Whether the setup wizard has been run before (on first boot), or if
3614         * it still needs to be run.
3615         *
3616         * nonzero = it has been run in the past
3617         * 0 = it has not been run in the past
3618         */
3619        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
3620
3621        /** @hide */
3622        public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = BOOLEAN_VALIDATOR;
3623
3624        /**
3625         * Scaling factor for normal window animations. Setting to 0 will disable window
3626         * animations.
3627         *
3628         * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
3629         */
3630        @Deprecated
3631        public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;
3632
3633        /**
3634         * Scaling factor for activity transition animations. Setting to 0 will disable window
3635         * animations.
3636         *
3637         * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
3638         */
3639        @Deprecated
3640        public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;
3641
3642        /**
3643         * Scaling factor for Animator-based animations. This affects both the start delay and
3644         * duration of all such animations. Setting to 0 will cause animations to end immediately.
3645         * The default value is 1.
3646         *
3647         * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
3648         */
3649        @Deprecated
3650        public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;
3651
3652        /**
3653         * Control whether the accelerometer will be used to change screen
3654         * orientation.  If 0, it will not be used unless explicitly requested
3655         * by the application; if 1, it will be used by default unless explicitly
3656         * disabled by the application.
3657         */
3658        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
3659
3660        /** @hide */
3661        public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = BOOLEAN_VALIDATOR;
3662
3663        /**
3664         * Default screen rotation when no other policy applies.
3665         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
3666         * preference, this rotation value will be used. Must be one of the
3667         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
3668         *
3669         * @see android.view.Display#getRotation
3670         */
3671        public static final String USER_ROTATION = "user_rotation";
3672
3673        /** @hide */
3674        public static final Validator USER_ROTATION_VALIDATOR =
3675                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);
3676
3677        /**
3678         * Control whether the rotation lock toggle in the System UI should be hidden.
3679         * Typically this is done for accessibility purposes to make it harder for
3680         * the user to accidentally toggle the rotation lock while the display rotation
3681         * has been locked for accessibility.
3682         *
3683         * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
3684         * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
3685         *
3686         * @hide
3687         */
3688        public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
3689                "hide_rotation_lock_toggle_for_accessibility";
3690
3691        /** @hide */
3692        public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
3693                BOOLEAN_VALIDATOR;
3694
3695        /**
3696         * Whether the phone vibrates when it is ringing due to an incoming call. This will
3697         * be used by Phone and Setting apps; it shouldn't affect other apps.
3698         * The value is boolean (1 or 0).
3699         *
3700         * Note: this is not same as "vibrate on ring", which had been available until ICS.
3701         * It was about AudioManager's setting and thus affected all the applications which
3702         * relied on the setting, while this is purely about the vibration setting for incoming
3703         * calls.
3704         */
3705        public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";
3706
3707        /** @hide */
3708        public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = BOOLEAN_VALIDATOR;
3709
3710        /**
3711         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
3712         * boolean (1 or 0).
3713         */
3714        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
3715
3716        /** @hide */
3717        public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = BOOLEAN_VALIDATOR;
3718
3719        /**
3720         * CDMA only settings
3721         * DTMF tone type played by the dialer when dialing.
3722         *                 0 = Normal
3723         *                 1 = Long
3724         */
3725        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
3726
3727        /** @hide */
3728        public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = BOOLEAN_VALIDATOR;
3729
3730        /**
3731         * Whether the hearing aid is enabled. The value is
3732         * boolean (1 or 0).
3733         * @hide
3734         */
3735        public static final String HEARING_AID = "hearing_aid";
3736
3737        /** @hide */
3738        public static final Validator HEARING_AID_VALIDATOR = BOOLEAN_VALIDATOR;
3739
3740        /**
3741         * CDMA only settings
3742         * TTY Mode
3743         * 0 = OFF
3744         * 1 = FULL
3745         * 2 = VCO
3746         * 3 = HCO
3747         * @hide
3748         */
3749        public static final String TTY_MODE = "tty_mode";
3750
3751        /** @hide */
3752        public static final Validator TTY_MODE_VALIDATOR =
3753                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);
3754
3755        /**
3756         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
3757         * boolean (1 or 0).
3758         */
3759        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
3760
3761        /** @hide */
3762        public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
3763
3764        /**
3765         * Whether haptic feedback (Vibrate on tap) is enabled. The value is
3766         * boolean (1 or 0).
3767         */
3768        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
3769
3770        /** @hide */
3771        public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
3772
3773        /**
3774         * @deprecated Each application that shows web suggestions should have its own
3775         * setting for this.
3776         */
3777        @Deprecated
3778        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
3779
3780        /** @hide */
3781        public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = BOOLEAN_VALIDATOR;
3782
3783        /**
3784         * Whether the notification LED should repeatedly flash when a notification is
3785         * pending. The value is boolean (1 or 0).
3786         * @hide
3787         */
3788        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
3789
3790        /** @hide */
3791        public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = BOOLEAN_VALIDATOR;
3792
3793        /**
3794         * Show pointer location on screen?
3795         * 0 = no
3796         * 1 = yes
3797         * @hide
3798         */
3799        public static final String POINTER_LOCATION = "pointer_location";
3800
3801        /** @hide */
3802        public static final Validator POINTER_LOCATION_VALIDATOR = BOOLEAN_VALIDATOR;
3803
3804        /**
3805         * Show touch positions on screen?
3806         * 0 = no
3807         * 1 = yes
3808         * @hide
3809         */
3810        public static final String SHOW_TOUCHES = "show_touches";
3811
3812        /** @hide */
3813        public static final Validator SHOW_TOUCHES_VALIDATOR = BOOLEAN_VALIDATOR;
3814
3815        /**
3816         * Log raw orientation data from
3817         * {@link com.android.server.policy.WindowOrientationListener} for use with the
3818         * orientationplot.py tool.
3819         * 0 = no
3820         * 1 = yes
3821         * @hide
3822         */
3823        public static final String WINDOW_ORIENTATION_LISTENER_LOG =
3824                "window_orientation_listener_log";
3825
3826        /** @hide */
3827        public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = BOOLEAN_VALIDATOR;
3828
3829        /**
3830         * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
3831         * instead
3832         * @hide
3833         */
3834        @Deprecated
3835        public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;
3836
3837        private static final Validator POWER_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
3838
3839        /**
3840         * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
3841         * instead
3842         * @hide
3843         */
3844        @Deprecated
3845        public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;
3846
3847        private static final Validator DOCK_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
3848
3849        /**
3850         * Whether to play sounds when the keyguard is shown and dismissed.
3851         * @hide
3852         */
3853        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
3854
3855        /** @hide */
3856        public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
3857
3858        /**
3859         * Whether the lockscreen should be completely disabled.
3860         * @hide
3861         */
3862        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
3863
3864        /** @hide */
3865        public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = BOOLEAN_VALIDATOR;
3866
3867        /**
3868         * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
3869         * instead
3870         * @hide
3871         */
3872        @Deprecated
3873        public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;
3874
3875        /**
3876         * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
3877         * instead
3878         * @hide
3879         */
3880        @Deprecated
3881        public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;
3882
3883        /**
3884         * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
3885         * instead
3886         * @hide
3887         */
3888        @Deprecated
3889        public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;
3890
3891        /**
3892         * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
3893         * instead
3894         * @hide
3895         */
3896        @Deprecated
3897        public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;
3898
3899        /**
3900         * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
3901         * instead
3902         * @hide
3903         */
3904        @Deprecated
3905        public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;
3906
3907        /**
3908         * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
3909         * instead
3910         * @hide
3911         */
3912        @Deprecated
3913        public static final String LOCK_SOUND = Global.LOCK_SOUND;
3914
3915        /**
3916         * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
3917         * instead
3918         * @hide
3919         */
3920        @Deprecated
3921        public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;
3922
3923        /**
3924         * Receive incoming SIP calls?
3925         * 0 = no
3926         * 1 = yes
3927         * @hide
3928         */
3929        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
3930
3931        /** @hide */
3932        public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = BOOLEAN_VALIDATOR;
3933
3934        /**
3935         * Call Preference String.
3936         * "SIP_ALWAYS" : Always use SIP with network access
3937         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
3938         * @hide
3939         */
3940        public static final String SIP_CALL_OPTIONS = "sip_call_options";
3941
3942        /** @hide */
3943        public static final Validator SIP_CALL_OPTIONS_VALIDATOR =
3944                new SettingsValidators.DiscreteValueValidator(
3945                        new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});
3946
3947        /**
3948         * One of the sip call options: Always use SIP with network access.
3949         * @hide
3950         */
3951        public static final String SIP_ALWAYS = "SIP_ALWAYS";
3952
3953        /** @hide */
3954        public static final Validator SIP_ALWAYS_VALIDATOR = BOOLEAN_VALIDATOR;
3955
3956        /**
3957         * One of the sip call options: Only if destination is a SIP address.
3958         * @hide
3959         */
3960        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
3961
3962        /** @hide */
3963        public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = BOOLEAN_VALIDATOR;
3964
3965        /**
3966         * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
3967         * the user should be prompted each time a call is made whether it should be placed using
3968         * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
3969         * SIP_ADDRESS_ONLY.
3970         * @hide
3971         */
3972        @Deprecated
3973        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
3974
3975        /** @hide */
3976        public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = BOOLEAN_VALIDATOR;
3977
3978        /**
3979         * Pointer speed setting.
3980         * This is an integer value in a range between -7 and +7, so there are 15 possible values.
3981         *   -7 = slowest
3982         *    0 = default speed
3983         *   +7 = fastest
3984         * @hide
3985         */
3986        public static final String POINTER_SPEED = "pointer_speed";
3987
3988        /** @hide */
3989        public static final Validator POINTER_SPEED_VALIDATOR =
3990                new SettingsValidators.InclusiveFloatRangeValidator(-7, 7);
3991
3992        /**
3993         * Whether lock-to-app will be triggered by long-press on recents.
3994         * @hide
3995         */
3996        public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";
3997
3998        /** @hide */
3999        public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
4000
4001        /**
4002         * I am the lolrus.
4003         * <p>
4004         * Nonzero values indicate that the user has a bukkit.
4005         * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
4006         * @hide
4007         */
4008        public static final String EGG_MODE = "egg_mode";
4009
4010        /** @hide */
4011        public static final Validator EGG_MODE_VALIDATOR = new Validator() {
4012            @Override
4013            public boolean validate(String value) {
4014                try {
4015                    return Long.parseLong(value) >= 0;
4016                } catch (NumberFormatException e) {
4017                    return false;
4018                }
4019            }
4020        };
4021
4022        /**
4023         * Setting to determine whether or not to show the battery percentage in the status bar.
4024         *    0 - Don't show percentage
4025         *    1 - Show percentage
4026         * @hide
4027         */
4028        public static final String SHOW_BATTERY_PERCENT = "status_bar_show_battery_percent";
4029
4030        /** @hide */
4031        private static final Validator SHOW_BATTERY_PERCENT_VALIDATOR = BOOLEAN_VALIDATOR;
4032
4033        /**
4034         * IMPORTANT: If you add a new public settings you also have to add it to
4035         * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
4036         * it to PRIVATE_SETTINGS below. Also add a validator that can validate
4037         * the setting value. See an example above.
4038         */
4039
4040        /**
4041         * Settings to backup. This is here so that it's in the same place as the settings
4042         * keys and easy to update.
4043         *
4044         * NOTE: Settings are backed up and restored in the order they appear
4045         *       in this array. If you have one setting depending on another,
4046         *       make sure that they are ordered appropriately.
4047         *
4048         * @hide
4049         */
4050        public static final String[] SETTINGS_TO_BACKUP = {
4051            STAY_ON_WHILE_PLUGGED_IN,   // moved to global
4052            WIFI_USE_STATIC_IP,
4053            WIFI_STATIC_IP,
4054            WIFI_STATIC_GATEWAY,
4055            WIFI_STATIC_NETMASK,
4056            WIFI_STATIC_DNS1,
4057            WIFI_STATIC_DNS2,
4058            BLUETOOTH_DISCOVERABILITY,
4059            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
4060            FONT_SCALE,
4061            DIM_SCREEN,
4062            SCREEN_OFF_TIMEOUT,
4063            SCREEN_BRIGHTNESS_MODE,
4064            SCREEN_AUTO_BRIGHTNESS_ADJ,
4065            SCREEN_BRIGHTNESS_FOR_VR,
4066            VIBRATE_INPUT_DEVICES,
4067            MODE_RINGER_STREAMS_AFFECTED,
4068            TEXT_AUTO_REPLACE,
4069            TEXT_AUTO_CAPS,
4070            TEXT_AUTO_PUNCTUATE,
4071            TEXT_SHOW_PASSWORD,
4072            AUTO_TIME,                  // moved to global
4073            AUTO_TIME_ZONE,             // moved to global
4074            TIME_12_24,
4075            DATE_FORMAT,
4076            DTMF_TONE_WHEN_DIALING,
4077            DTMF_TONE_TYPE_WHEN_DIALING,
4078            HEARING_AID,
4079            TTY_MODE,
4080            MASTER_MONO,
4081            SOUND_EFFECTS_ENABLED,
4082            HAPTIC_FEEDBACK_ENABLED,
4083            POWER_SOUNDS_ENABLED,       // moved to global
4084            DOCK_SOUNDS_ENABLED,        // moved to global
4085            LOCKSCREEN_SOUNDS_ENABLED,
4086            SHOW_WEB_SUGGESTIONS,
4087            SIP_CALL_OPTIONS,
4088            SIP_RECEIVE_CALLS,
4089            POINTER_SPEED,
4090            VIBRATE_WHEN_RINGING,
4091            RINGTONE,
4092            LOCK_TO_APP_ENABLED,
4093            NOTIFICATION_SOUND,
4094            ACCELEROMETER_ROTATION,
4095            SHOW_BATTERY_PERCENT,
4096            NOTIFICATION_VIBRATION_INTENSITY,
4097            HAPTIC_FEEDBACK_INTENSITY,
4098            DISPLAY_COLOR_MODE
4099        };
4100
4101        /**
4102         * Keys we no longer back up under the current schema, but want to continue to
4103         * process when restoring historical backup datasets.
4104         *
4105         * All settings in {@link LEGACY_RESTORE_SETTINGS} array *must* have a non-null validator,
4106         * otherwise they won't be restored.
4107         *
4108         * @hide
4109         */
4110        public static final String[] LEGACY_RESTORE_SETTINGS = {
4111        };
4112
4113        /**
4114         * These are all public system settings
4115         *
4116         * @hide
4117         */
4118        public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
4119        static {
4120            PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
4121            PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
4122            PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
4123            PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
4124            PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
4125            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
4126            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
4127            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
4128            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
4129            PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
4130            PUBLIC_SETTINGS.add(FONT_SCALE);
4131            PUBLIC_SETTINGS.add(DIM_SCREEN);
4132            PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
4133            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
4134            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
4135            PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
4136            PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
4137            PUBLIC_SETTINGS.add(VIBRATE_ON);
4138            PUBLIC_SETTINGS.add(VOLUME_RING);
4139            PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
4140            PUBLIC_SETTINGS.add(VOLUME_VOICE);
4141            PUBLIC_SETTINGS.add(VOLUME_MUSIC);
4142            PUBLIC_SETTINGS.add(VOLUME_ALARM);
4143            PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
4144            PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
4145            PUBLIC_SETTINGS.add(RINGTONE);
4146            PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
4147            PUBLIC_SETTINGS.add(ALARM_ALERT);
4148            PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
4149            PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
4150            PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
4151            PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
4152            PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
4153            PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
4154            PUBLIC_SETTINGS.add(TIME_12_24);
4155            PUBLIC_SETTINGS.add(DATE_FORMAT);
4156            PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
4157            PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
4158            PUBLIC_SETTINGS.add(USER_ROTATION);
4159            PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
4160            PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
4161            PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
4162            PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
4163            PUBLIC_SETTINGS.add(VIBRATE_WHEN_RINGING);
4164        }
4165
4166        /**
4167         * These are all hidden system settings.
4168         *
4169         * @hide
4170         */
4171        public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
4172        static {
4173            PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
4174            PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
4175            PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
4176            PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
4177            PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
4178            PRIVATE_SETTINGS.add(VOLUME_MASTER);
4179            PRIVATE_SETTINGS.add(MASTER_MONO);
4180            PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
4181            PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
4182            PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
4183            PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
4184            PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
4185            PRIVATE_SETTINGS.add(HEARING_AID);
4186            PRIVATE_SETTINGS.add(TTY_MODE);
4187            PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
4188            PRIVATE_SETTINGS.add(POINTER_LOCATION);
4189            PRIVATE_SETTINGS.add(SHOW_TOUCHES);
4190            PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
4191            PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
4192            PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
4193            PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
4194            PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
4195            PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
4196            PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
4197            PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
4198            PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
4199            PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
4200            PRIVATE_SETTINGS.add(LOCK_SOUND);
4201            PRIVATE_SETTINGS.add(UNLOCK_SOUND);
4202            PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
4203            PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
4204            PRIVATE_SETTINGS.add(SIP_ALWAYS);
4205            PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
4206            PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
4207            PRIVATE_SETTINGS.add(POINTER_SPEED);
4208            PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
4209            PRIVATE_SETTINGS.add(EGG_MODE);
4210            PRIVATE_SETTINGS.add(SHOW_BATTERY_PERCENT);
4211            PRIVATE_SETTINGS.add(DISPLAY_COLOR_MODE);
4212        }
4213
4214        /**
4215         * These are all public system settings
4216         *
4217         * All settings in {@link SETTINGS_TO_BACKUP} array *must* have a non-null validator,
4218         * otherwise they won't be restored.
4219         *
4220         * @hide
4221         */
4222        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
4223        static {
4224            VALIDATORS.put(STAY_ON_WHILE_PLUGGED_IN, STAY_ON_WHILE_PLUGGED_IN_VALIDATOR);
4225            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
4226            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
4227            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
4228            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
4229                    BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
4230            VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
4231            VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
4232            VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
4233            VALIDATORS.put(DISPLAY_COLOR_MODE, DISPLAY_COLOR_MODE_VALIDATOR);
4234            VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
4235            VALIDATORS.put(SCREEN_BRIGHTNESS_FOR_VR, SCREEN_BRIGHTNESS_FOR_VR_VALIDATOR);
4236            VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
4237            VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
4238            VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
4239            VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
4240            VALIDATORS.put(NOTIFICATION_VIBRATION_INTENSITY, VIBRATION_INTENSITY_VALIDATOR);
4241            VALIDATORS.put(HAPTIC_FEEDBACK_INTENSITY, VIBRATION_INTENSITY_VALIDATOR);
4242            VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
4243            VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
4244            VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
4245            VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
4246            VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
4247            VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
4248            VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
4249            VALIDATORS.put(AUTO_TIME, AUTO_TIME_VALIDATOR);
4250            VALIDATORS.put(AUTO_TIME_ZONE, AUTO_TIME_ZONE_VALIDATOR);
4251            VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
4252            VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
4253            VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
4254            VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
4255            VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
4256            VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
4257            VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
4258            VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
4259            VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
4260            VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
4261            VALIDATORS.put(POWER_SOUNDS_ENABLED, POWER_SOUNDS_ENABLED_VALIDATOR);
4262            VALIDATORS.put(DOCK_SOUNDS_ENABLED, DOCK_SOUNDS_ENABLED_VALIDATOR);
4263            VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
4264            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
4265            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
4266            VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
4267            VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
4268            VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
4269            VALIDATORS.put(MASTER_MONO, MASTER_MONO_VALIDATOR);
4270            VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
4271            VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
4272            VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
4273            VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
4274                    HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
4275            VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
4276            VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
4277            VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
4278            VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
4279            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
4280            VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
4281            VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
4282            VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
4283                    WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
4284            VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
4285            VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
4286            VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
4287            VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
4288            VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
4289            VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
4290            VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
4291            VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
4292            VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
4293            VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
4294            VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
4295            VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
4296            VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
4297            VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
4298            VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
4299            VALIDATORS.put(SHOW_BATTERY_PERCENT, SHOW_BATTERY_PERCENT_VALIDATOR);
4300        }
4301
4302        /**
4303         * These entries are considered common between the personal and the managed profile,
4304         * since the managed profile doesn't get to change them.
4305         */
4306        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
4307        static {
4308            CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
4309            CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
4310            CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
4311            CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
4312            CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
4313        }
4314
4315        /** @hide */
4316        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
4317            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
4318        }
4319
4320        /**
4321         * These entries should be cloned from this profile's parent only if the dependency's
4322         * value is true ("1")
4323         *
4324         * Note: the dependencies must be Secure settings
4325         *
4326         * @hide
4327         */
4328        public static final Map<String, String> CLONE_FROM_PARENT_ON_VALUE = new ArrayMap<>();
4329        static {
4330            CLONE_FROM_PARENT_ON_VALUE.put(RINGTONE, Secure.SYNC_PARENT_SOUNDS);
4331            CLONE_FROM_PARENT_ON_VALUE.put(NOTIFICATION_SOUND, Secure.SYNC_PARENT_SOUNDS);
4332            CLONE_FROM_PARENT_ON_VALUE.put(ALARM_ALERT, Secure.SYNC_PARENT_SOUNDS);
4333        }
4334
4335        /** @hide */
4336        public static void getCloneFromParentOnValueSettings(Map<String, String> outMap) {
4337            outMap.putAll(CLONE_FROM_PARENT_ON_VALUE);
4338        }
4339
4340        /**
4341         * System settings which can be accessed by instant apps.
4342         * @hide
4343         */
4344        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
4345        static {
4346            INSTANT_APP_SETTINGS.add(TEXT_AUTO_REPLACE);
4347            INSTANT_APP_SETTINGS.add(TEXT_AUTO_CAPS);
4348            INSTANT_APP_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
4349            INSTANT_APP_SETTINGS.add(TEXT_SHOW_PASSWORD);
4350            INSTANT_APP_SETTINGS.add(DATE_FORMAT);
4351            INSTANT_APP_SETTINGS.add(FONT_SCALE);
4352            INSTANT_APP_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
4353            INSTANT_APP_SETTINGS.add(TIME_12_24);
4354            INSTANT_APP_SETTINGS.add(SOUND_EFFECTS_ENABLED);
4355            INSTANT_APP_SETTINGS.add(ACCELEROMETER_ROTATION);
4356        }
4357
4358        /**
4359         * When to use Wi-Fi calling
4360         *
4361         * @see android.telephony.TelephonyManager.WifiCallingChoices
4362         * @hide
4363         */
4364        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
4365
4366        // Settings moved to Settings.Secure
4367
4368        /**
4369         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
4370         * instead
4371         */
4372        @Deprecated
4373        public static final String ADB_ENABLED = Global.ADB_ENABLED;
4374
4375        /**
4376         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
4377         */
4378        @Deprecated
4379        public static final String ANDROID_ID = Secure.ANDROID_ID;
4380
4381        /**
4382         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
4383         */
4384        @Deprecated
4385        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
4386
4387        private static final Validator BLUETOOTH_ON_VALIDATOR = BOOLEAN_VALIDATOR;
4388
4389        /**
4390         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
4391         */
4392        @Deprecated
4393        public static final String DATA_ROAMING = Global.DATA_ROAMING;
4394
4395        /**
4396         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
4397         */
4398        @Deprecated
4399        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
4400
4401        /**
4402         * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
4403         */
4404        @Deprecated
4405        public static final String HTTP_PROXY = Global.HTTP_PROXY;
4406
4407        /**
4408         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
4409         */
4410        @Deprecated
4411        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
4412
4413        /**
4414         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
4415         * instead
4416         */
4417        @Deprecated
4418        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
4419
4420        /**
4421         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
4422         */
4423        @Deprecated
4424        public static final String LOGGING_ID = Secure.LOGGING_ID;
4425
4426        /**
4427         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
4428         */
4429        @Deprecated
4430        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
4431
4432        /**
4433         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
4434         * instead
4435         */
4436        @Deprecated
4437        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
4438
4439        /**
4440         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
4441         * instead
4442         */
4443        @Deprecated
4444        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
4445
4446        /**
4447         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
4448         * instead
4449         */
4450        @Deprecated
4451        public static final String PARENTAL_CONTROL_REDIRECT_URL =
4452            Secure.PARENTAL_CONTROL_REDIRECT_URL;
4453
4454        /**
4455         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
4456         */
4457        @Deprecated
4458        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
4459
4460        /**
4461         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
4462         */
4463        @Deprecated
4464        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
4465
4466        private static final Validator USB_MASS_STORAGE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
4467
4468        /**
4469         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
4470         */
4471        @Deprecated
4472        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
4473
4474       /**
4475         * @deprecated Use
4476         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
4477         */
4478        @Deprecated
4479        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
4480
4481        /**
4482         * @deprecated Use
4483         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
4484         */
4485        @Deprecated
4486        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
4487                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
4488
4489        /**
4490         * @deprecated Use
4491         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
4492         */
4493        @Deprecated
4494        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
4495                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
4496
4497        private static final Validator WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
4498                BOOLEAN_VALIDATOR;
4499
4500        /**
4501         * @deprecated Use
4502         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
4503         */
4504        @Deprecated
4505        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
4506                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
4507
4508        private static final Validator WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR =
4509                NON_NEGATIVE_INTEGER_VALIDATOR;
4510
4511        /**
4512         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
4513         * instead
4514         */
4515        @Deprecated
4516        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
4517
4518        private static final Validator WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR =
4519                NON_NEGATIVE_INTEGER_VALIDATOR;
4520
4521        /**
4522         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
4523         */
4524        @Deprecated
4525        public static final String WIFI_ON = Global.WIFI_ON;
4526
4527        /**
4528         * @deprecated Use
4529         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
4530         * instead
4531         */
4532        @Deprecated
4533        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
4534                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
4535
4536        /**
4537         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
4538         */
4539        @Deprecated
4540        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
4541
4542        /**
4543         * @deprecated Use
4544         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
4545         */
4546        @Deprecated
4547        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
4548                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
4549
4550        /**
4551         * @deprecated Use
4552         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
4553         */
4554        @Deprecated
4555        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
4556                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
4557
4558        /**
4559         * @deprecated Use
4560         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
4561         * instead
4562         */
4563        @Deprecated
4564        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
4565                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
4566
4567        /**
4568         * @deprecated Use
4569         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
4570         */
4571        @Deprecated
4572        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
4573            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
4574
4575        /**
4576         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
4577         * instead
4578         */
4579        @Deprecated
4580        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
4581
4582        /**
4583         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
4584         */
4585        @Deprecated
4586        public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;
4587
4588        /**
4589         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
4590         */
4591        @Deprecated
4592        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
4593
4594        /**
4595         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
4596         * instead
4597         */
4598        @Deprecated
4599        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
4600
4601        /**
4602         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
4603         * instead
4604         */
4605        @Deprecated
4606        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
4607            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
4608
4609        /**
4610         * Checks if the specified app can modify system settings. As of API
4611         * level 23, an app cannot modify system settings unless it declares the
4612         * {@link android.Manifest.permission#WRITE_SETTINGS}
4613         * permission in its manifest, <em>and</em> the user specifically grants
4614         * the app this capability. To prompt the user to grant this approval,
4615         * the app must send an intent with the action {@link
4616         * android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}, which causes
4617         * the system to display a permission management screen.
4618         *
4619         * @param context App context.
4620         * @return true if the calling app can write to system settings, false otherwise
4621         */
4622        public static boolean canWrite(Context context) {
4623            return isCallingPackageAllowedToWriteSettings(context, Process.myUid(),
4624                    context.getOpPackageName(), false);
4625        }
4626    }
4627
4628    /**
4629     * Secure system settings, containing system preferences that applications
4630     * can read but are not allowed to write.  These are for preferences that
4631     * the user must explicitly modify through the system UI or specialized
4632     * APIs for those values, not modified directly by applications.
4633     */
4634    public static final class Secure extends NameValueTable {
4635        // NOTE: If you add new settings here, be sure to add them to
4636        // com.android.providers.settings.SettingsProtoDumpUtil#dumpProtoSecureSettingsLocked.
4637
4638        /**
4639         * The content:// style URL for this table
4640         */
4641        public static final Uri CONTENT_URI =
4642            Uri.parse("content://" + AUTHORITY + "/secure");
4643
4644        private static final ContentProviderHolder sProviderHolder =
4645                new ContentProviderHolder(CONTENT_URI);
4646
4647        // Populated lazily, guarded by class object:
4648        private static final NameValueCache sNameValueCache = new NameValueCache(
4649                CONTENT_URI,
4650                CALL_METHOD_GET_SECURE,
4651                CALL_METHOD_PUT_SECURE,
4652                sProviderHolder);
4653
4654        private static ILockSettings sLockSettings = null;
4655
4656        private static boolean sIsSystemProcess;
4657        private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
4658        private static final HashSet<String> MOVED_TO_GLOBAL;
4659        static {
4660            MOVED_TO_LOCK_SETTINGS = new HashSet<>(3);
4661            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
4662            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
4663            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
4664
4665            MOVED_TO_GLOBAL = new HashSet<>();
4666            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
4667            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
4668            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
4669            MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
4670            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
4671            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
4672            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
4673            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
4674            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
4675            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
4676            MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
4677            MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
4678            MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
4679            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
4680            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
4681            MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
4682            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
4683            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
4684            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
4685            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
4686            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
4687            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
4688            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
4689            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
4690            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
4691            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
4692            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
4693            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
4694            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
4695            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
4696            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
4697            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
4698            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
4699            MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
4700            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
4701            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
4702            MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
4703            MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
4704            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
4705            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
4706            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
4707            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
4708            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
4709            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
4710            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
4711            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
4712            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
4713            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
4714            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
4715            MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
4716            MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
4717            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
4718            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
4719            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
4720            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
4721            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
4722            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
4723            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4724            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
4725            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
4726            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
4727            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
4728            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
4729            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
4730            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
4731            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED);
4732            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
4733            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
4734            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
4735            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
4736            MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4737            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
4738            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
4739            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
4740            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
4741            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
4742            MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
4743            MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
4744            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
4745            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
4746            MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
4747            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
4748            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
4749            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
4750            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
4751            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
4752            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
4753            MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
4754            MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
4755            MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
4756            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
4757            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
4758            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
4759            MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
4760            MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
4761            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
4762            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
4763            MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
4764            MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
4765            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
4766            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
4767            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
4768            MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
4769            MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
4770            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
4771            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
4772            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
4773            MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
4774            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
4775            MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
4776            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
4777        }
4778
4779        /** @hide */
4780        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
4781            outKeySet.addAll(MOVED_TO_GLOBAL);
4782        }
4783
4784        /** @hide */
4785        public static void clearProviderForTest() {
4786            sProviderHolder.clearProviderForTest();
4787            sNameValueCache.clearGenerationTrackerForTest();
4788        }
4789
4790        /**
4791         * Look up a name in the database.
4792         * @param resolver to access the database with
4793         * @param name to look up in the table
4794         * @return the corresponding value, or null if not present
4795         */
4796        public static String getString(ContentResolver resolver, String name) {
4797            return getStringForUser(resolver, name, resolver.getUserId());
4798        }
4799
4800        /** @hide */
4801        public static String getStringForUser(ContentResolver resolver, String name,
4802                int userHandle) {
4803            if (MOVED_TO_GLOBAL.contains(name)) {
4804                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4805                        + " to android.provider.Settings.Global.");
4806                return Global.getStringForUser(resolver, name, userHandle);
4807            }
4808
4809            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
4810                synchronized (Secure.class) {
4811                    if (sLockSettings == null) {
4812                        sLockSettings = ILockSettings.Stub.asInterface(
4813                                (IBinder) ServiceManager.getService("lock_settings"));
4814                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
4815                    }
4816                }
4817                if (sLockSettings != null && !sIsSystemProcess) {
4818                    // No context; use the ActivityThread's context as an approximation for
4819                    // determining the target API level.
4820                    Application application = ActivityThread.currentApplication();
4821
4822                    boolean isPreMnc = application != null
4823                            && application.getApplicationInfo() != null
4824                            && application.getApplicationInfo().targetSdkVersion
4825                            <= VERSION_CODES.LOLLIPOP_MR1;
4826                    if (isPreMnc) {
4827                        try {
4828                            return sLockSettings.getString(name, "0", userHandle);
4829                        } catch (RemoteException re) {
4830                            // Fall through
4831                        }
4832                    } else {
4833                        throw new SecurityException("Settings.Secure." + name
4834                                + " is deprecated and no longer accessible."
4835                                + " See API documentation for potential replacements.");
4836                    }
4837                }
4838            }
4839
4840            return sNameValueCache.getStringForUser(resolver, name, userHandle);
4841        }
4842
4843        /**
4844         * Store a name/value pair into the database.
4845         * @param resolver to access the database with
4846         * @param name to store
4847         * @param value to associate with the name
4848         * @return true if the value was set, false on database errors
4849         */
4850        public static boolean putString(ContentResolver resolver, String name, String value) {
4851            return putStringForUser(resolver, name, value, resolver.getUserId());
4852        }
4853
4854        /** @hide */
4855        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
4856                int userHandle) {
4857            return putStringForUser(resolver, name, value, null, false, userHandle);
4858        }
4859
4860        /** @hide */
4861        public static boolean putStringForUser(@NonNull ContentResolver resolver,
4862                @NonNull String name, @Nullable String value, @Nullable String tag,
4863                boolean makeDefault, @UserIdInt int userHandle) {
4864            if (LOCATION_MODE.equals(name)) {
4865                // Map LOCATION_MODE to underlying location provider storage API
4866                return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
4867            }
4868            if (MOVED_TO_GLOBAL.contains(name)) {
4869                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4870                        + " to android.provider.Settings.Global");
4871                return Global.putStringForUser(resolver, name, value,
4872                        tag, makeDefault, userHandle);
4873            }
4874            return sNameValueCache.putStringForUser(resolver, name, value, tag,
4875                    makeDefault, userHandle);
4876        }
4877
4878        /**
4879         * Store a name/value pair into the database.
4880         * <p>
4881         * The method takes an optional tag to associate with the setting
4882         * which can be used to clear only settings made by your package and
4883         * associated with this tag by passing the tag to {@link
4884         * #resetToDefaults(ContentResolver, String)}. Anyone can override
4885         * the current tag. Also if another package changes the setting
4886         * then the tag will be set to the one specified in the set call
4887         * which can be null. Also any of the settings setters that do not
4888         * take a tag as an argument effectively clears the tag.
4889         * </p><p>
4890         * For example, if you set settings A and B with tags T1 and T2 and
4891         * another app changes setting A (potentially to the same value), it
4892         * can assign to it a tag T3 (note that now the package that changed
4893         * the setting is not yours). Now if you reset your changes for T1 and
4894         * T2 only setting B will be reset and A not (as it was changed by
4895         * another package) but since A did not change you are in the desired
4896         * initial state. Now if the other app changes the value of A (assuming
4897         * you registered an observer in the beginning) you would detect that
4898         * the setting was changed by another app and handle this appropriately
4899         * (ignore, set back to some value, etc).
4900         * </p><p>
4901         * Also the method takes an argument whether to make the value the
4902         * default for this setting. If the system already specified a default
4903         * value, then the one passed in here will <strong>not</strong>
4904         * be set as the default.
4905         * </p>
4906         *
4907         * @param resolver to access the database with.
4908         * @param name to store.
4909         * @param value to associate with the name.
4910         * @param tag to associate with the setting.
4911         * @param makeDefault whether to make the value the default one.
4912         * @return true if the value was set, false on database errors.
4913         *
4914         * @see #resetToDefaults(ContentResolver, String)
4915         *
4916         * @hide
4917         */
4918        @SystemApi
4919        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
4920        public static boolean putString(@NonNull ContentResolver resolver,
4921                @NonNull String name, @Nullable String value, @Nullable String tag,
4922                boolean makeDefault) {
4923            return putStringForUser(resolver, name, value, tag, makeDefault,
4924                    resolver.getUserId());
4925        }
4926
4927        /**
4928         * Reset the settings to their defaults. This would reset <strong>only</strong>
4929         * settings set by the caller's package. Think of it of a way to undo your own
4930         * changes to the global settings. Passing in the optional tag will reset only
4931         * settings changed by your package and associated with this tag.
4932         *
4933         * @param resolver Handle to the content resolver.
4934         * @param tag Optional tag which should be associated with the settings to reset.
4935         *
4936         * @see #putString(ContentResolver, String, String, String, boolean)
4937         *
4938         * @hide
4939         */
4940        @SystemApi
4941        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
4942        public static void resetToDefaults(@NonNull ContentResolver resolver,
4943                @Nullable String tag) {
4944            resetToDefaultsAsUser(resolver, tag, RESET_MODE_PACKAGE_DEFAULTS,
4945                    resolver.getUserId());
4946        }
4947
4948        /**
4949         *
4950         * Reset the settings to their defaults for a given user with a specific mode. The
4951         * optional tag argument is valid only for {@link #RESET_MODE_PACKAGE_DEFAULTS}
4952         * allowing resetting the settings made by a package and associated with the tag.
4953         *
4954         * @param resolver Handle to the content resolver.
4955         * @param tag Optional tag which should be associated with the settings to reset.
4956         * @param mode The reset mode.
4957         * @param userHandle The user for which to reset to defaults.
4958         *
4959         * @see #RESET_MODE_PACKAGE_DEFAULTS
4960         * @see #RESET_MODE_UNTRUSTED_DEFAULTS
4961         * @see #RESET_MODE_UNTRUSTED_CHANGES
4962         * @see #RESET_MODE_TRUSTED_DEFAULTS
4963         *
4964         * @hide
4965         */
4966        public static void resetToDefaultsAsUser(@NonNull ContentResolver resolver,
4967                @Nullable String tag, @ResetMode int mode, @IntRange(from = 0) int userHandle) {
4968            try {
4969                Bundle arg = new Bundle();
4970                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
4971                if (tag != null) {
4972                    arg.putString(CALL_METHOD_TAG_KEY, tag);
4973                }
4974                arg.putInt(CALL_METHOD_RESET_MODE_KEY, mode);
4975                IContentProvider cp = sProviderHolder.getProvider(resolver);
4976                cp.call(resolver.getPackageName(), CALL_METHOD_RESET_SECURE, null, arg);
4977            } catch (RemoteException e) {
4978                Log.w(TAG, "Can't reset do defaults for " + CONTENT_URI, e);
4979            }
4980        }
4981
4982        /**
4983         * Construct the content URI for a particular name/value pair,
4984         * useful for monitoring changes with a ContentObserver.
4985         * @param name to look up in the table
4986         * @return the corresponding content URI, or null if not present
4987         */
4988        public static Uri getUriFor(String name) {
4989            if (MOVED_TO_GLOBAL.contains(name)) {
4990                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4991                        + " to android.provider.Settings.Global, returning global URI.");
4992                return Global.getUriFor(Global.CONTENT_URI, name);
4993            }
4994            return getUriFor(CONTENT_URI, name);
4995        }
4996
4997        /**
4998         * Convenience function for retrieving a single secure settings value
4999         * as an integer.  Note that internally setting values are always
5000         * stored as strings; this function converts the string to an integer
5001         * for you.  The default value will be returned if the setting is
5002         * not defined or not an integer.
5003         *
5004         * @param cr The ContentResolver to access.
5005         * @param name The name of the setting to retrieve.
5006         * @param def Value to return if the setting is not defined.
5007         *
5008         * @return The setting's current value, or 'def' if it is not defined
5009         * or not a valid integer.
5010         */
5011        public static int getInt(ContentResolver cr, String name, int def) {
5012            return getIntForUser(cr, name, def, cr.getUserId());
5013        }
5014
5015        /** @hide */
5016        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
5017            if (LOCATION_MODE.equals(name)) {
5018                // Map from to underlying location provider storage API to location mode
5019                return getLocationModeForUser(cr, userHandle);
5020            }
5021            String v = getStringForUser(cr, name, userHandle);
5022            try {
5023                return v != null ? Integer.parseInt(v) : def;
5024            } catch (NumberFormatException e) {
5025                return def;
5026            }
5027        }
5028
5029        /**
5030         * Convenience function for retrieving a single secure settings value
5031         * as an integer.  Note that internally setting values are always
5032         * stored as strings; this function converts the string to an integer
5033         * for you.
5034         * <p>
5035         * This version does not take a default value.  If the setting has not
5036         * been set, or the string value is not a number,
5037         * it throws {@link SettingNotFoundException}.
5038         *
5039         * @param cr The ContentResolver to access.
5040         * @param name The name of the setting to retrieve.
5041         *
5042         * @throws SettingNotFoundException Thrown if a setting by the given
5043         * name can't be found or the setting value is not an integer.
5044         *
5045         * @return The setting's current value.
5046         */
5047        public static int getInt(ContentResolver cr, String name)
5048                throws SettingNotFoundException {
5049            return getIntForUser(cr, name, cr.getUserId());
5050        }
5051
5052        /** @hide */
5053        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
5054                throws SettingNotFoundException {
5055            if (LOCATION_MODE.equals(name)) {
5056                // Map from to underlying location provider storage API to location mode
5057                return getLocationModeForUser(cr, userHandle);
5058            }
5059            String v = getStringForUser(cr, name, userHandle);
5060            try {
5061                return Integer.parseInt(v);
5062            } catch (NumberFormatException e) {
5063                throw new SettingNotFoundException(name);
5064            }
5065        }
5066
5067        /**
5068         * Convenience function for updating a single settings value as an
5069         * integer. This will either create a new entry in the table if the
5070         * given name does not exist, or modify the value of the existing row
5071         * with that name.  Note that internally setting values are always
5072         * stored as strings, so this function converts the given value to a
5073         * string before storing it.
5074         *
5075         * @param cr The ContentResolver to access.
5076         * @param name The name of the setting to modify.
5077         * @param value The new value for the setting.
5078         * @return true if the value was set, false on database errors
5079         */
5080        public static boolean putInt(ContentResolver cr, String name, int value) {
5081            return putIntForUser(cr, name, value, cr.getUserId());
5082        }
5083
5084        /** @hide */
5085        public static boolean putIntForUser(ContentResolver cr, String name, int value,
5086                int userHandle) {
5087            return putStringForUser(cr, name, Integer.toString(value), userHandle);
5088        }
5089
5090        /**
5091         * Convenience function for retrieving a single secure settings value
5092         * as a {@code long}.  Note that internally setting values are always
5093         * stored as strings; this function converts the string to a {@code long}
5094         * for you.  The default value will be returned if the setting is
5095         * not defined or not a {@code long}.
5096         *
5097         * @param cr The ContentResolver to access.
5098         * @param name The name of the setting to retrieve.
5099         * @param def Value to return if the setting is not defined.
5100         *
5101         * @return The setting's current value, or 'def' if it is not defined
5102         * or not a valid {@code long}.
5103         */
5104        public static long getLong(ContentResolver cr, String name, long def) {
5105            return getLongForUser(cr, name, def, cr.getUserId());
5106        }
5107
5108        /** @hide */
5109        public static long getLongForUser(ContentResolver cr, String name, long def,
5110                int userHandle) {
5111            String valString = getStringForUser(cr, name, userHandle);
5112            long value;
5113            try {
5114                value = valString != null ? Long.parseLong(valString) : def;
5115            } catch (NumberFormatException e) {
5116                value = def;
5117            }
5118            return value;
5119        }
5120
5121        /**
5122         * Convenience function for retrieving a single secure settings value
5123         * as a {@code long}.  Note that internally setting values are always
5124         * stored as strings; this function converts the string to a {@code long}
5125         * for you.
5126         * <p>
5127         * This version does not take a default value.  If the setting has not
5128         * been set, or the string value is not a number,
5129         * it throws {@link SettingNotFoundException}.
5130         *
5131         * @param cr The ContentResolver to access.
5132         * @param name The name of the setting to retrieve.
5133         *
5134         * @return The setting's current value.
5135         * @throws SettingNotFoundException Thrown if a setting by the given
5136         * name can't be found or the setting value is not an integer.
5137         */
5138        public static long getLong(ContentResolver cr, String name)
5139                throws SettingNotFoundException {
5140            return getLongForUser(cr, name, cr.getUserId());
5141        }
5142
5143        /** @hide */
5144        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
5145                throws SettingNotFoundException {
5146            String valString = getStringForUser(cr, name, userHandle);
5147            try {
5148                return Long.parseLong(valString);
5149            } catch (NumberFormatException e) {
5150                throw new SettingNotFoundException(name);
5151            }
5152        }
5153
5154        /**
5155         * Convenience function for updating a secure settings value as a long
5156         * integer. This will either create a new entry in the table if the
5157         * given name does not exist, or modify the value of the existing row
5158         * with that name.  Note that internally setting values are always
5159         * stored as strings, so this function converts the given value to a
5160         * string before storing it.
5161         *
5162         * @param cr The ContentResolver to access.
5163         * @param name The name of the setting to modify.
5164         * @param value The new value for the setting.
5165         * @return true if the value was set, false on database errors
5166         */
5167        public static boolean putLong(ContentResolver cr, String name, long value) {
5168            return putLongForUser(cr, name, value, cr.getUserId());
5169        }
5170
5171        /** @hide */
5172        public static boolean putLongForUser(ContentResolver cr, String name, long value,
5173                int userHandle) {
5174            return putStringForUser(cr, name, Long.toString(value), userHandle);
5175        }
5176
5177        /**
5178         * Convenience function for retrieving a single secure settings value
5179         * as a floating point number.  Note that internally setting values are
5180         * always stored as strings; this function converts the string to an
5181         * float for you. The default value will be returned if the setting
5182         * is not defined or not a valid float.
5183         *
5184         * @param cr The ContentResolver to access.
5185         * @param name The name of the setting to retrieve.
5186         * @param def Value to return if the setting is not defined.
5187         *
5188         * @return The setting's current value, or 'def' if it is not defined
5189         * or not a valid float.
5190         */
5191        public static float getFloat(ContentResolver cr, String name, float def) {
5192            return getFloatForUser(cr, name, def, cr.getUserId());
5193        }
5194
5195        /** @hide */
5196        public static float getFloatForUser(ContentResolver cr, String name, float def,
5197                int userHandle) {
5198            String v = getStringForUser(cr, name, userHandle);
5199            try {
5200                return v != null ? Float.parseFloat(v) : def;
5201            } catch (NumberFormatException e) {
5202                return def;
5203            }
5204        }
5205
5206        /**
5207         * Convenience function for retrieving a single secure settings value
5208         * as a float.  Note that internally setting values are always
5209         * stored as strings; this function converts the string to a float
5210         * for you.
5211         * <p>
5212         * This version does not take a default value.  If the setting has not
5213         * been set, or the string value is not a number,
5214         * it throws {@link SettingNotFoundException}.
5215         *
5216         * @param cr The ContentResolver to access.
5217         * @param name The name of the setting to retrieve.
5218         *
5219         * @throws SettingNotFoundException Thrown if a setting by the given
5220         * name can't be found or the setting value is not a float.
5221         *
5222         * @return The setting's current value.
5223         */
5224        public static float getFloat(ContentResolver cr, String name)
5225                throws SettingNotFoundException {
5226            return getFloatForUser(cr, name, cr.getUserId());
5227        }
5228
5229        /** @hide */
5230        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
5231                throws SettingNotFoundException {
5232            String v = getStringForUser(cr, name, userHandle);
5233            if (v == null) {
5234                throw new SettingNotFoundException(name);
5235            }
5236            try {
5237                return Float.parseFloat(v);
5238            } catch (NumberFormatException e) {
5239                throw new SettingNotFoundException(name);
5240            }
5241        }
5242
5243        /**
5244         * Convenience function for updating a single settings value as a
5245         * floating point number. This will either create a new entry in the
5246         * table if the given name does not exist, or modify the value of the
5247         * existing row with that name.  Note that internally setting values
5248         * are always stored as strings, so this function converts the given
5249         * value to a string before storing it.
5250         *
5251         * @param cr The ContentResolver to access.
5252         * @param name The name of the setting to modify.
5253         * @param value The new value for the setting.
5254         * @return true if the value was set, false on database errors
5255         */
5256        public static boolean putFloat(ContentResolver cr, String name, float value) {
5257            return putFloatForUser(cr, name, value, cr.getUserId());
5258        }
5259
5260        /** @hide */
5261        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
5262                int userHandle) {
5263            return putStringForUser(cr, name, Float.toString(value), userHandle);
5264        }
5265
5266        /**
5267         * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
5268         * instead
5269         */
5270        @Deprecated
5271        public static final String DEVELOPMENT_SETTINGS_ENABLED =
5272                Global.DEVELOPMENT_SETTINGS_ENABLED;
5273
5274        /**
5275         * When the user has enable the option to have a "bug report" command
5276         * in the power menu.
5277         * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
5278         * @hide
5279         */
5280        @Deprecated
5281        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
5282
5283        private static final Validator BUGREPORT_IN_POWER_MENU_VALIDATOR = BOOLEAN_VALIDATOR;
5284
5285        /**
5286         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
5287         */
5288        @Deprecated
5289        public static final String ADB_ENABLED = Global.ADB_ENABLED;
5290
5291        /**
5292         * Setting to allow mock locations and location provider status to be injected into the
5293         * LocationManager service for testing purposes during application development.  These
5294         * locations and status values  override actual location and status information generated
5295         * by network, gps, or other location providers.
5296         *
5297         * @deprecated This settings is not used anymore.
5298         */
5299        @Deprecated
5300        public static final String ALLOW_MOCK_LOCATION = "mock_location";
5301
5302        private static final Validator ALLOW_MOCK_LOCATION_VALIDATOR = BOOLEAN_VALIDATOR;
5303
5304        /**
5305         * On Android 8.0 (API level 26) and higher versions of the platform,
5306         * a 64-bit number (expressed as a hexadecimal string), unique to
5307         * each combination of app-signing key, user, and device.
5308         * Values of {@code ANDROID_ID} are scoped by signing key and user.
5309         * The value may change if a factory reset is performed on the
5310         * device or if an APK signing key changes.
5311         *
5312         * For more information about how the platform handles {@code ANDROID_ID}
5313         * in Android 8.0 (API level 26) and higher, see <a
5314         * href="{@docRoot}preview/behavior-changes.html#privacy-all">
5315         * Android 8.0 Behavior Changes</a>.
5316         *
5317         * <p class="note"><strong>Note:</strong> For apps that were installed
5318         * prior to updating the device to a version of Android 8.0
5319         * (API level 26) or higher, the value of {@code ANDROID_ID} changes
5320         * if the app is uninstalled and then reinstalled after the OTA.
5321         * To preserve values across uninstalls after an OTA to Android 8.0
5322         * or higher, developers can use
5323         * <a href="{@docRoot}guide/topics/data/keyvaluebackup.html">
5324         * Key/Value Backup</a>.</p>
5325         *
5326         * <p>In versions of the platform lower than Android 8.0 (API level 26),
5327         * a 64-bit number (expressed as a hexadecimal string) that is randomly
5328         * generated when the user first sets up the device and should remain
5329         * constant for the lifetime of the user's device.
5330         *
5331         * On devices that have
5332         * <a href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">
5333         * multiple users</a>, each user appears as a
5334         * completely separate device, so the {@code ANDROID_ID} value is
5335         * unique to each user.</p>
5336         *
5337         * <p class="note"><strong>Note:</strong> If the caller is an Instant App the ID is scoped
5338         * to the Instant App, it is generated when the Instant App is first installed and reset if
5339         * the user clears the Instant App.
5340         */
5341        public static final String ANDROID_ID = "android_id";
5342
5343        /**
5344         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
5345         */
5346        @Deprecated
5347        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
5348
5349        private static final Validator BLUETOOTH_ON_VALIDATOR = BOOLEAN_VALIDATOR;
5350
5351        /**
5352         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
5353         */
5354        @Deprecated
5355        public static final String DATA_ROAMING = Global.DATA_ROAMING;
5356
5357        /**
5358         * Setting to record the input method used by default, holding the ID
5359         * of the desired method.
5360         */
5361        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
5362
5363        /**
5364         * Setting to record the input method subtype used by default, holding the ID
5365         * of the desired method.
5366         */
5367        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
5368                "selected_input_method_subtype";
5369
5370        /**
5371         * Setting to record the history of input method subtype, holding the pair of ID of IME
5372         * and its last used subtype.
5373         * @hide
5374         */
5375        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
5376                "input_methods_subtype_history";
5377
5378        /**
5379         * Setting to record the visibility of input method selector
5380         */
5381        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
5382                "input_method_selector_visibility";
5383
5384        /**
5385         * The currently selected voice interaction service flattened ComponentName.
5386         * @hide
5387         */
5388        @TestApi
5389        public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";
5390
5391        /**
5392         * The currently selected autofill service flattened ComponentName.
5393         * @hide
5394         */
5395        @TestApi
5396        public static final String AUTOFILL_SERVICE = "autofill_service";
5397
5398        private static final Validator AUTOFILL_SERVICE_VALIDATOR = COMPONENT_NAME_VALIDATOR;
5399
5400        /**
5401         * Boolean indicating if Autofill supports field classification.
5402         *
5403         * @see android.service.autofill.AutofillService
5404         *
5405         * @hide
5406         */
5407        @SystemApi
5408        @TestApi
5409        public static final String AUTOFILL_FEATURE_FIELD_CLASSIFICATION =
5410                "autofill_field_classification";
5411
5412        /**
5413         * Defines value returned by {@link android.service.autofill.UserData#getMaxUserDataSize()}.
5414         *
5415         * @hide
5416         */
5417        @SystemApi
5418        @TestApi
5419        public static final String AUTOFILL_USER_DATA_MAX_USER_DATA_SIZE =
5420                "autofill_user_data_max_user_data_size";
5421
5422        /**
5423         * Defines value returned by
5424         * {@link android.service.autofill.UserData#getMaxFieldClassificationIdsSize()}.
5425         *
5426         * @hide
5427         */
5428        @SystemApi
5429        @TestApi
5430        public static final String AUTOFILL_USER_DATA_MAX_FIELD_CLASSIFICATION_IDS_SIZE =
5431                "autofill_user_data_max_field_classification_size";
5432
5433        /**
5434         * Defines value returned by
5435         * {@link android.service.autofill.UserData#getMaxCategoryCount()}.
5436         *
5437         * @hide
5438         */
5439        @SystemApi
5440        @TestApi
5441        public static final String AUTOFILL_USER_DATA_MAX_CATEGORY_COUNT =
5442                "autofill_user_data_max_category_count";
5443
5444        /**
5445         * Defines value returned by {@link android.service.autofill.UserData#getMaxValueLength()}.
5446         *
5447         * @hide
5448         */
5449        @SystemApi
5450        @TestApi
5451        public static final String AUTOFILL_USER_DATA_MAX_VALUE_LENGTH =
5452                "autofill_user_data_max_value_length";
5453
5454        /**
5455         * Defines value returned by {@link android.service.autofill.UserData#getMinValueLength()}.
5456         *
5457         * @hide
5458         */
5459        @SystemApi
5460        @TestApi
5461        public static final String AUTOFILL_USER_DATA_MIN_VALUE_LENGTH =
5462                "autofill_user_data_min_value_length";
5463
5464        /**
5465         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
5466         */
5467        @Deprecated
5468        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
5469
5470        /**
5471         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
5472         * @hide
5473         */
5474        @TestApi
5475        public static final String USER_SETUP_COMPLETE = "user_setup_complete";
5476
5477        /**
5478         * The current state of device personalization.
5479         *
5480         * @hide
5481         * @see UserSetupPersonalization
5482         */
5483        public static final String USER_SETUP_PERSONALIZATION_STATE =
5484                "user_setup_personalization_state";
5485
5486        /**
5487         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
5488         * This value differs from USER_SETUP_COMPLETE in that it can be reset back to 0
5489         * in case SetupWizard has been re-enabled on TV devices.
5490         *
5491         * @hide
5492         */
5493        public static final String TV_USER_SETUP_COMPLETE = "tv_user_setup_complete";
5494
5495        /**
5496         * Prefix for category name that marks whether a suggested action from that category was
5497         * completed.
5498         * @hide
5499         */
5500        public static final String COMPLETED_CATEGORY_PREFIX = "suggested.completed_category.";
5501
5502        /**
5503         * List of input methods that are currently enabled.  This is a string
5504         * containing the IDs of all enabled input methods, each ID separated
5505         * by ':'.
5506         *
5507         * Format like "ime0;subtype0;subtype1;subtype2:ime1:ime2;subtype0"
5508         * where imeId is ComponentName and subtype is int32.
5509         */
5510        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
5511
5512        /**
5513         * List of system input methods that are currently disabled.  This is a string
5514         * containing the IDs of all disabled input methods, each ID separated
5515         * by ':'.
5516         * @hide
5517         */
5518        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
5519
5520        /**
5521         * Whether to show the IME when a hard keyboard is connected. This is a boolean that
5522         * determines if the IME should be shown when a hard keyboard is attached.
5523         * @hide
5524         */
5525        public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";
5526
5527        private static final Validator SHOW_IME_WITH_HARD_KEYBOARD_VALIDATOR = BOOLEAN_VALIDATOR;
5528
5529        /**
5530         * Host name and port for global http proxy. Uses ':' seperator for
5531         * between host and port.
5532         *
5533         * @deprecated Use {@link Global#HTTP_PROXY}
5534         */
5535        @Deprecated
5536        public static final String HTTP_PROXY = Global.HTTP_PROXY;
5537
5538        /**
5539         * Package designated as always-on VPN provider.
5540         *
5541         * @hide
5542         */
5543        public static final String ALWAYS_ON_VPN_APP = "always_on_vpn_app";
5544
5545        /**
5546         * Whether to block networking outside of VPN connections while always-on is set.
5547         * @see #ALWAYS_ON_VPN_APP
5548         *
5549         * @hide
5550         */
5551        public static final String ALWAYS_ON_VPN_LOCKDOWN = "always_on_vpn_lockdown";
5552
5553        /**
5554         * Whether applications can be installed for this user via the system's
5555         * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
5556         *
5557         * <p>1 = permit app installation via the system package installer intent
5558         * <p>0 = do not allow use of the package installer
5559         * @deprecated Starting from {@link android.os.Build.VERSION_CODES#O}, apps should use
5560         * {@link PackageManager#canRequestPackageInstalls()}
5561         * @see PackageManager#canRequestPackageInstalls()
5562         */
5563        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
5564
5565        /**
5566         * A flag to tell {@link com.android.server.devicepolicy.DevicePolicyManagerService} that
5567         * the default for {@link #INSTALL_NON_MARKET_APPS} is reversed for this user on OTA. So it
5568         * can set the restriction {@link android.os.UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES}
5569         * on behalf of the profile owner if needed to make the change transparent for profile
5570         * owners.
5571         *
5572         * @hide
5573         */
5574        public static final String UNKNOWN_SOURCES_DEFAULT_REVERSED =
5575                "unknown_sources_default_reversed";
5576
5577        /**
5578         * Comma-separated list of location providers that activities may access. Do not rely on
5579         * this value being present in settings.db or on ContentObserver notifications on the
5580         * corresponding Uri.
5581         *
5582         * @deprecated use {@link #LOCATION_MODE} and
5583         * {@link LocationManager#MODE_CHANGED_ACTION} (or
5584         * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
5585         */
5586        @Deprecated
5587        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
5588
5589        /**
5590         * The degree of location access enabled by the user.
5591         * <p>
5592         * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
5593         * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
5594         * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
5595         * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
5596         * modes that might be added in the future.
5597         * <p>
5598         * Note: do not rely on this value being present in settings.db or on ContentObserver
5599         * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
5600         * to receive changes in this value.
5601         *
5602         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
5603         *             get the status of a location provider, use
5604         *             {@link LocationManager#isProviderEnabled(String)}.
5605         */
5606        @Deprecated
5607        public static final String LOCATION_MODE = "location_mode";
5608
5609        /**
5610         * The App or module that changes the location mode.
5611         * @hide
5612         */
5613        public static final String LOCATION_CHANGER = "location_changer";
5614        /**
5615         * The location changer is unknown or unable to detect.
5616         * @hide
5617         */
5618        public static final int LOCATION_CHANGER_UNKNOWN = 0;
5619        /**
5620         * Location settings in system settings.
5621         * @hide
5622         */
5623        public static final int LOCATION_CHANGER_SYSTEM_SETTINGS = 1;
5624        /**
5625         * The location icon in drop down notification drawer.
5626         * @hide
5627         */
5628        public static final int LOCATION_CHANGER_QUICK_SETTINGS = 2;
5629
5630        /**
5631         * Location access disabled.
5632         *
5633         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
5634         *             get the status of a location provider, use
5635         *             {@link LocationManager#isProviderEnabled(String)}.
5636         */
5637        @Deprecated
5638        public static final int LOCATION_MODE_OFF = 0;
5639
5640        /**
5641         * Network Location Provider disabled, but GPS and other sensors enabled.
5642         *
5643         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
5644         *             get the status of a location provider, use
5645         *             {@link LocationManager#isProviderEnabled(String)}.
5646         */
5647        @Deprecated
5648        public static final int LOCATION_MODE_SENSORS_ONLY = 1;
5649
5650        /**
5651         * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
5652         * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
5653         * {@link android.location.Criteria#POWER_MEDIUM}.
5654         *
5655         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
5656         *             get the status of a location provider, use
5657         *             {@link LocationManager#isProviderEnabled(String)}.
5658         */
5659        @Deprecated
5660        public static final int LOCATION_MODE_BATTERY_SAVING = 2;
5661
5662        /**
5663         * Best-effort location computation allowed.
5664         *
5665         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
5666         *             get the status of a location provider, use
5667         *             {@link LocationManager#isProviderEnabled(String)}.
5668         */
5669        @Deprecated
5670        public static final int LOCATION_MODE_HIGH_ACCURACY = 3;
5671
5672        /**
5673         * A flag containing settings used for biometric weak
5674         * @hide
5675         */
5676        @Deprecated
5677        public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
5678                "lock_biometric_weak_flags";
5679
5680        /**
5681         * Whether lock-to-app will lock the keyguard when exiting.
5682         * @hide
5683         */
5684        public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";
5685
5686        /**
5687         * Whether autolock is enabled (0 = false, 1 = true)
5688         *
5689         * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
5690         *             level of the keyguard. Accessing this setting from an app that is targeting
5691         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
5692         */
5693        @Deprecated
5694        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
5695
5696        /**
5697         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
5698         *
5699         * @deprecated Accessing this setting from an app that is targeting
5700         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
5701         */
5702        @Deprecated
5703        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
5704
5705        /**
5706         * Whether lock pattern will vibrate as user enters (0 = false, 1 =
5707         * true)
5708         *
5709         * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
5710         *             lockscreen uses
5711         *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
5712         *             Accessing this setting from an app that is targeting
5713         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
5714         */
5715        @Deprecated
5716        public static final String
5717                LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";
5718
5719        /**
5720         * This preference allows the device to be locked given time after screen goes off,
5721         * subject to current DeviceAdmin policy limits.
5722         * @hide
5723         */
5724        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
5725
5726
5727        /**
5728         * This preference contains the string that shows for owner info on LockScreen.
5729         * @hide
5730         * @deprecated
5731         */
5732        @Deprecated
5733        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
5734
5735        /**
5736         * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
5737         * @hide
5738         */
5739        @Deprecated
5740        public static final String LOCK_SCREEN_APPWIDGET_IDS =
5741            "lock_screen_appwidget_ids";
5742
5743        /**
5744         * Id of the appwidget shown on the lock screen when appwidgets are disabled.
5745         * @hide
5746         */
5747        @Deprecated
5748        public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
5749            "lock_screen_fallback_appwidget_id";
5750
5751        /**
5752         * Index of the lockscreen appwidget to restore, -1 if none.
5753         * @hide
5754         */
5755        @Deprecated
5756        public static final String LOCK_SCREEN_STICKY_APPWIDGET =
5757            "lock_screen_sticky_appwidget";
5758
5759        /**
5760         * This preference enables showing the owner info on LockScreen.
5761         * @hide
5762         * @deprecated
5763         */
5764        @Deprecated
5765        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
5766            "lock_screen_owner_info_enabled";
5767
5768        /**
5769         * When set by a user, allows notifications to be shown atop a securely locked screen
5770         * in their full "private" form (same as when the device is unlocked).
5771         * @hide
5772         */
5773        public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
5774                "lock_screen_allow_private_notifications";
5775
5776        /**
5777         * When set by a user, allows notification remote input atop a securely locked screen
5778         * without having to unlock
5779         * @hide
5780         */
5781        public static final String LOCK_SCREEN_ALLOW_REMOTE_INPUT =
5782                "lock_screen_allow_remote_input";
5783
5784        /**
5785         * Set by the system to track if the user needs to see the call to action for
5786         * the lockscreen notification policy.
5787         * @hide
5788         */
5789        public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
5790                "show_note_about_notification_hiding";
5791
5792        /**
5793         * Set to 1 by the system after trust agents have been initialized.
5794         * @hide
5795         */
5796        public static final String TRUST_AGENTS_INITIALIZED =
5797                "trust_agents_initialized";
5798
5799        /**
5800         * The Logging ID (a unique 64-bit value) as a hex string.
5801         * Used as a pseudonymous identifier for logging.
5802         * @deprecated This identifier is poorly initialized and has
5803         * many collisions.  It should not be used.
5804         */
5805        @Deprecated
5806        public static final String LOGGING_ID = "logging_id";
5807
5808        /**
5809         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
5810         */
5811        @Deprecated
5812        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
5813
5814        /**
5815         * No longer supported.
5816         */
5817        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
5818
5819        /**
5820         * No longer supported.
5821         */
5822        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
5823
5824        /**
5825         * No longer supported.
5826         */
5827        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
5828
5829        /**
5830         * Settings classname to launch when Settings is clicked from All
5831         * Applications.  Needed because of user testing between the old
5832         * and new Settings apps.
5833         */
5834        // TODO: 881807
5835        public static final String SETTINGS_CLASSNAME = "settings_classname";
5836
5837        /**
5838         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
5839         */
5840        @Deprecated
5841        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
5842
5843        private static final Validator USB_MASS_STORAGE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
5844
5845        /**
5846         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
5847         */
5848        @Deprecated
5849        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
5850
5851        /**
5852         * If accessibility is enabled.
5853         */
5854        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
5855
5856        private static final Validator ACCESSIBILITY_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
5857
5858        /**
5859         * Setting specifying if the accessibility shortcut is enabled.
5860         * @hide
5861         */
5862        public static final String ACCESSIBILITY_SHORTCUT_ENABLED =
5863                "accessibility_shortcut_enabled";
5864
5865        private static final Validator ACCESSIBILITY_SHORTCUT_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
5866
5867        /**
5868         * Setting specifying if the accessibility shortcut is enabled.
5869         * @hide
5870         */
5871        public static final String ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN =
5872                "accessibility_shortcut_on_lock_screen";
5873
5874        private static final Validator ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN_VALIDATOR =
5875                BOOLEAN_VALIDATOR;
5876
5877        /**
5878         * Setting specifying if the accessibility shortcut dialog has been shown to this user.
5879         * @hide
5880         */
5881        public static final String ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN =
5882                "accessibility_shortcut_dialog_shown";
5883
5884        private static final Validator ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN_VALIDATOR =
5885                BOOLEAN_VALIDATOR;
5886
5887        /**
5888         * Setting specifying the accessibility service to be toggled via the accessibility
5889         * shortcut. Must be its flattened {@link ComponentName}.
5890         * @hide
5891         */
5892        public static final String ACCESSIBILITY_SHORTCUT_TARGET_SERVICE =
5893                "accessibility_shortcut_target_service";
5894
5895        private static final Validator ACCESSIBILITY_SHORTCUT_TARGET_SERVICE_VALIDATOR =
5896                COMPONENT_NAME_VALIDATOR;
5897
5898        /**
5899         * Setting specifying the accessibility service or feature to be toggled via the
5900         * accessibility button in the navigation bar. This is either a flattened
5901         * {@link ComponentName} or the class name of a system class implementing a supported
5902         * accessibility feature.
5903         * @hide
5904         */
5905        public static final String ACCESSIBILITY_BUTTON_TARGET_COMPONENT =
5906                "accessibility_button_target_component";
5907
5908        private static final Validator ACCESSIBILITY_BUTTON_TARGET_COMPONENT_VALIDATOR =
5909                new Validator() {
5910                    @Override
5911                    public boolean validate(String value) {
5912                        // technically either ComponentName or class name, but there's proper value
5913                        // validation at callsites, so allow any non-null string
5914                        return value != null;
5915                    }
5916                };
5917
5918        /**
5919         * If touch exploration is enabled.
5920         */
5921        public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";
5922
5923        private static final Validator TOUCH_EXPLORATION_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
5924
5925        /**
5926         * List of the enabled accessibility providers.
5927         */
5928        public static final String ENABLED_ACCESSIBILITY_SERVICES =
5929            "enabled_accessibility_services";
5930
5931        private static final Validator ENABLED_ACCESSIBILITY_SERVICES_VALIDATOR =
5932                new SettingsValidators.ComponentNameListValidator(":");
5933
5934        /**
5935         * List of the accessibility services to which the user has granted
5936         * permission to put the device into touch exploration mode.
5937         *
5938         * @hide
5939         */
5940        public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
5941            "touch_exploration_granted_accessibility_services";
5942
5943        private static final Validator TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES_VALIDATOR =
5944                new SettingsValidators.ComponentNameListValidator(":");
5945
5946        /**
5947         * Uri of the slice that's presented on the keyguard.
5948         * Defaults to a slice with the date and next alarm.
5949         *
5950         * @hide
5951         */
5952        public static final String KEYGUARD_SLICE_URI = "keyguard_slice_uri";
5953
5954        /**
5955         * Whether to speak passwords while in accessibility mode.
5956         *
5957         * @deprecated The speaking of passwords is controlled by individual accessibility services.
5958         * Apps should ignore this setting and provide complete information to accessibility
5959         * at all times, which was the behavior when this value was {@code true}.
5960         */
5961        @Deprecated
5962        public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";
5963
5964        private static final Validator ACCESSIBILITY_SPEAK_PASSWORD_VALIDATOR = BOOLEAN_VALIDATOR;
5965
5966        /**
5967         * Whether to draw text with high contrast while in accessibility mode.
5968         *
5969         * @hide
5970         */
5971        public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
5972                "high_text_contrast_enabled";
5973
5974        private static final Validator ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED_VALIDATOR =
5975                BOOLEAN_VALIDATOR;
5976
5977        /**
5978         * Setting that specifies whether the display magnification is enabled via a system-wide
5979         * triple tap gesture. Display magnifications allows the user to zoom in the display content
5980         * and is targeted to low vision users. The current magnification scale is controlled by
5981         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5982         *
5983         * @hide
5984         */
5985        @TestApi
5986        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
5987                "accessibility_display_magnification_enabled";
5988
5989        private static final Validator ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED_VALIDATOR =
5990                BOOLEAN_VALIDATOR;
5991
5992        /**
5993         * Setting that specifies whether the display magnification is enabled via a shortcut
5994         * affordance within the system's navigation area. Display magnifications allows the user to
5995         * zoom in the display content and is targeted to low vision users. The current
5996         * magnification scale is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5997         *
5998         * @hide
5999         */
6000        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED =
6001                "accessibility_display_magnification_navbar_enabled";
6002
6003        private static final Validator ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED_VALIDATOR
6004                = BOOLEAN_VALIDATOR;
6005
6006        /**
6007         * Setting that specifies what the display magnification scale is.
6008         * Display magnifications allows the user to zoom in the display
6009         * content and is targeted to low vision users. Whether a display
6010         * magnification is performed is controlled by
6011         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED} and
6012         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED}
6013         *
6014         * @hide
6015         */
6016        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
6017                "accessibility_display_magnification_scale";
6018
6019        private static final Validator ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE_VALIDATOR =
6020                new SettingsValidators.InclusiveFloatRangeValidator(1.0f, Float.MAX_VALUE);
6021
6022        /**
6023         * Unused mangnification setting
6024         *
6025         * @hide
6026         * @deprecated
6027         */
6028        @Deprecated
6029        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
6030                "accessibility_display_magnification_auto_update";
6031
6032        /**
6033         * Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
6034         * modified from an AccessibilityService using the SoftKeyboardController.
6035         *
6036         * @hide
6037         */
6038        public static final String ACCESSIBILITY_SOFT_KEYBOARD_MODE =
6039                "accessibility_soft_keyboard_mode";
6040
6041        /**
6042         * Default soft keyboard behavior.
6043         *
6044         * @hide
6045         */
6046        public static final int SHOW_MODE_AUTO = 0;
6047
6048        /**
6049         * Soft keyboard is never shown.
6050         *
6051         * @hide
6052         */
6053        public static final int SHOW_MODE_HIDDEN = 1;
6054
6055        /**
6056         * Setting that specifies whether timed text (captions) should be
6057         * displayed in video content. Text display properties are controlled by
6058         * the following settings:
6059         * <ul>
6060         * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
6061         * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
6062         * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
6063         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
6064         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
6065         * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
6066         * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
6067         * </ul>
6068         *
6069         * @hide
6070         */
6071        public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
6072                "accessibility_captioning_enabled";
6073
6074        private static final Validator ACCESSIBILITY_CAPTIONING_ENABLED_VALIDATOR =
6075                BOOLEAN_VALIDATOR;
6076
6077        /**
6078         * Setting that specifies the language for captions as a locale string,
6079         * e.g. en_US.
6080         *
6081         * @see java.util.Locale#toString
6082         * @hide
6083         */
6084        public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
6085                "accessibility_captioning_locale";
6086
6087        private static final Validator ACCESSIBILITY_CAPTIONING_LOCALE_VALIDATOR = LOCALE_VALIDATOR;
6088
6089        /**
6090         * Integer property that specifies the preset style for captions, one
6091         * of:
6092         * <ul>
6093         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
6094         * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
6095         * </ul>
6096         *
6097         * @see java.util.Locale#toString
6098         * @hide
6099         */
6100        public static final String ACCESSIBILITY_CAPTIONING_PRESET =
6101                "accessibility_captioning_preset";
6102
6103        private static final Validator ACCESSIBILITY_CAPTIONING_PRESET_VALIDATOR =
6104                new SettingsValidators.DiscreteValueValidator(new String[]{"-1", "0", "1", "2",
6105                        "3", "4"});
6106
6107        /**
6108         * Integer property that specifes the background color for captions as a
6109         * packed 32-bit color.
6110         *
6111         * @see android.graphics.Color#argb
6112         * @hide
6113         */
6114        public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
6115                "accessibility_captioning_background_color";
6116
6117        private static final Validator ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR_VALIDATOR =
6118                ANY_INTEGER_VALIDATOR;
6119
6120        /**
6121         * Integer property that specifes the foreground color for captions as a
6122         * packed 32-bit color.
6123         *
6124         * @see android.graphics.Color#argb
6125         * @hide
6126         */
6127        public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
6128                "accessibility_captioning_foreground_color";
6129
6130        private static final Validator ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR_VALIDATOR =
6131                ANY_INTEGER_VALIDATOR;
6132
6133        /**
6134         * Integer property that specifes the edge type for captions, one of:
6135         * <ul>
6136         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
6137         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
6138         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
6139         * </ul>
6140         *
6141         * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
6142         * @hide
6143         */
6144        public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
6145                "accessibility_captioning_edge_type";
6146
6147        private static final Validator ACCESSIBILITY_CAPTIONING_EDGE_TYPE_VALIDATOR =
6148                new SettingsValidators.DiscreteValueValidator(new String[]{"0", "1", "2"});
6149
6150        /**
6151         * Integer property that specifes the edge color for captions as a
6152         * packed 32-bit color.
6153         *
6154         * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
6155         * @see android.graphics.Color#argb
6156         * @hide
6157         */
6158        public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
6159                "accessibility_captioning_edge_color";
6160
6161        private static final Validator ACCESSIBILITY_CAPTIONING_EDGE_COLOR_VALIDATOR =
6162                ANY_INTEGER_VALIDATOR;
6163
6164        /**
6165         * Integer property that specifes the window color for captions as a
6166         * packed 32-bit color.
6167         *
6168         * @see android.graphics.Color#argb
6169         * @hide
6170         */
6171        public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
6172                "accessibility_captioning_window_color";
6173
6174        private static final Validator ACCESSIBILITY_CAPTIONING_WINDOW_COLOR_VALIDATOR =
6175                ANY_INTEGER_VALIDATOR;
6176
6177        /**
6178         * String property that specifies the typeface for captions, one of:
6179         * <ul>
6180         * <li>DEFAULT
6181         * <li>MONOSPACE
6182         * <li>SANS_SERIF
6183         * <li>SERIF
6184         * </ul>
6185         *
6186         * @see android.graphics.Typeface
6187         * @hide
6188         */
6189        public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
6190                "accessibility_captioning_typeface";
6191
6192        private static final Validator ACCESSIBILITY_CAPTIONING_TYPEFACE_VALIDATOR =
6193                new SettingsValidators.DiscreteValueValidator(new String[]{"DEFAULT",
6194                        "MONOSPACE", "SANS_SERIF", "SERIF"});
6195
6196        /**
6197         * Floating point property that specifies font scaling for captions.
6198         *
6199         * @hide
6200         */
6201        public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
6202                "accessibility_captioning_font_scale";
6203
6204        private static final Validator ACCESSIBILITY_CAPTIONING_FONT_SCALE_VALIDATOR =
6205                new SettingsValidators.InclusiveFloatRangeValidator(0.5f, 2.0f);
6206
6207        /**
6208         * Setting that specifies whether display color inversion is enabled.
6209         */
6210        public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
6211                "accessibility_display_inversion_enabled";
6212
6213        private static final Validator ACCESSIBILITY_DISPLAY_INVERSION_ENABLED_VALIDATOR =
6214                BOOLEAN_VALIDATOR;
6215
6216        /**
6217         * Setting that specifies whether display color space adjustment is
6218         * enabled.
6219         *
6220         * @hide
6221         */
6222        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
6223                "accessibility_display_daltonizer_enabled";
6224
6225        private static final Validator ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED_VALIDATOR =
6226                BOOLEAN_VALIDATOR;
6227
6228        /**
6229         * Integer property that specifies the type of color space adjustment to
6230         * perform. Valid values are defined in AccessibilityManager and Settings arrays.xml:
6231         * - AccessibilityManager.DALTONIZER_DISABLED = -1
6232         * - AccessibilityManager.DALTONIZER_SIMULATE_MONOCHROMACY = 0
6233         * - <item>@string/daltonizer_mode_protanomaly</item> = 11
6234         * - AccessibilityManager.DALTONIZER_CORRECT_DEUTERANOMALY and
6235         *       <item>@string/daltonizer_mode_deuteranomaly</item> = 12
6236         * - <item>@string/daltonizer_mode_tritanomaly</item> = 13
6237         *
6238         * @hide
6239         */
6240        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
6241                "accessibility_display_daltonizer";
6242
6243        private static final Validator ACCESSIBILITY_DISPLAY_DALTONIZER_VALIDATOR =
6244                new SettingsValidators.DiscreteValueValidator(
6245                        new String[] {"-1", "0", "11", "12", "13"});
6246
6247        /**
6248         * Setting that specifies whether automatic click when the mouse pointer stops moving is
6249         * enabled.
6250         *
6251         * @hide
6252         */
6253        public static final String ACCESSIBILITY_AUTOCLICK_ENABLED =
6254                "accessibility_autoclick_enabled";
6255
6256        private static final Validator ACCESSIBILITY_AUTOCLICK_ENABLED_VALIDATOR =
6257                BOOLEAN_VALIDATOR;
6258
6259        /**
6260         * Integer setting specifying amount of time in ms the mouse pointer has to stay still
6261         * before performing click when {@link #ACCESSIBILITY_AUTOCLICK_ENABLED} is set.
6262         *
6263         * @see #ACCESSIBILITY_AUTOCLICK_ENABLED
6264         * @hide
6265         */
6266        public static final String ACCESSIBILITY_AUTOCLICK_DELAY =
6267                "accessibility_autoclick_delay";
6268
6269        private static final Validator ACCESSIBILITY_AUTOCLICK_DELAY_VALIDATOR =
6270                NON_NEGATIVE_INTEGER_VALIDATOR;
6271
6272        /**
6273         * Whether or not larger size icons are used for the pointer of mouse/trackpad for
6274         * accessibility.
6275         * (0 = false, 1 = true)
6276         * @hide
6277         */
6278        public static final String ACCESSIBILITY_LARGE_POINTER_ICON =
6279                "accessibility_large_pointer_icon";
6280
6281        private static final Validator ACCESSIBILITY_LARGE_POINTER_ICON_VALIDATOR =
6282                BOOLEAN_VALIDATOR;
6283
6284        /**
6285         * The timeout for considering a press to be a long press in milliseconds.
6286         * @hide
6287         */
6288        public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";
6289
6290        private static final Validator LONG_PRESS_TIMEOUT_VALIDATOR =
6291                NON_NEGATIVE_INTEGER_VALIDATOR;
6292
6293        /**
6294         * The duration in milliseconds between the first tap's up event and the second tap's
6295         * down event for an interaction to be considered part of the same multi-press.
6296         * @hide
6297         */
6298        public static final String MULTI_PRESS_TIMEOUT = "multi_press_timeout";
6299
6300        /**
6301         * List of the enabled print services.
6302         *
6303         * N and beyond uses {@link #DISABLED_PRINT_SERVICES}. But this might be used in an upgrade
6304         * from pre-N.
6305         *
6306         * @hide
6307         */
6308        public static final String ENABLED_PRINT_SERVICES =
6309            "enabled_print_services";
6310
6311        /**
6312         * List of the disabled print services.
6313         *
6314         * @hide
6315         */
6316        @TestApi
6317        public static final String DISABLED_PRINT_SERVICES =
6318            "disabled_print_services";
6319
6320        /**
6321         * The saved value for WindowManagerService.setForcedDisplayDensity()
6322         * formatted as a single integer representing DPI. If unset, then use
6323         * the real display density.
6324         *
6325         * @hide
6326         */
6327        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";
6328
6329        /**
6330         * Setting to always use the default text-to-speech settings regardless
6331         * of the application settings.
6332         * 1 = override application settings,
6333         * 0 = use application settings (if specified).
6334         *
6335         * @deprecated  The value of this setting is no longer respected by
6336         * the framework text to speech APIs as of the Ice Cream Sandwich release.
6337         */
6338        @Deprecated
6339        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
6340
6341        /**
6342         * Default text-to-speech engine speech rate. 100 = 1x
6343         */
6344        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
6345
6346        private static final Validator TTS_DEFAULT_RATE_VALIDATOR = NON_NEGATIVE_INTEGER_VALIDATOR;
6347
6348        /**
6349         * Default text-to-speech engine pitch. 100 = 1x
6350         */
6351        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
6352
6353        private static final Validator TTS_DEFAULT_PITCH_VALIDATOR = NON_NEGATIVE_INTEGER_VALIDATOR;
6354
6355        /**
6356         * Default text-to-speech engine.
6357         */
6358        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
6359
6360        private static final Validator TTS_DEFAULT_SYNTH_VALIDATOR = PACKAGE_NAME_VALIDATOR;
6361
6362        /**
6363         * Default text-to-speech language.
6364         *
6365         * @deprecated this setting is no longer in use, as of the Ice Cream
6366         * Sandwich release. Apps should never need to read this setting directly,
6367         * instead can query the TextToSpeech framework classes for the default
6368         * locale. {@link TextToSpeech#getLanguage()}.
6369         */
6370        @Deprecated
6371        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
6372
6373        /**
6374         * Default text-to-speech country.
6375         *
6376         * @deprecated this setting is no longer in use, as of the Ice Cream
6377         * Sandwich release. Apps should never need to read this setting directly,
6378         * instead can query the TextToSpeech framework classes for the default
6379         * locale. {@link TextToSpeech#getLanguage()}.
6380         */
6381        @Deprecated
6382        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
6383
6384        /**
6385         * Default text-to-speech locale variant.
6386         *
6387         * @deprecated this setting is no longer in use, as of the Ice Cream
6388         * Sandwich release. Apps should never need to read this setting directly,
6389         * instead can query the TextToSpeech framework classes for the
6390         * locale that is in use {@link TextToSpeech#getLanguage()}.
6391         */
6392        @Deprecated
6393        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
6394
6395        /**
6396         * Stores the default tts locales on a per engine basis. Stored as
6397         * a comma seperated list of values, each value being of the form
6398         * {@code engine_name:locale} for example,
6399         * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
6400         * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
6401         * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
6402         * setting directly, and can query the TextToSpeech framework classes
6403         * for the locale that is in use.
6404         *
6405         * @hide
6406         */
6407        public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";
6408
6409        private static final Validator TTS_DEFAULT_LOCALE_VALIDATOR = new Validator() {
6410            @Override
6411            public boolean validate(String value) {
6412                if (value == null || value.length() == 0) {
6413                    return false;
6414                }
6415                String[] ttsLocales = value.split(",");
6416                boolean valid = true;
6417                for (String ttsLocale : ttsLocales) {
6418                    String[] parts = ttsLocale.split(":");
6419                    valid |= ((parts.length == 2)
6420                            && (parts[0].length() > 0)
6421                            && ANY_STRING_VALIDATOR.validate(parts[0])
6422                            && LOCALE_VALIDATOR.validate(parts[1]));
6423                }
6424                return valid;
6425            }
6426        };
6427
6428        /**
6429         * Space delimited list of plugin packages that are enabled.
6430         */
6431        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
6432
6433        private static final Validator TTS_ENABLED_PLUGINS_VALIDATOR =
6434                new SettingsValidators.PackageNameListValidator(" ");
6435
6436        /**
6437         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
6438         * instead.
6439         */
6440        @Deprecated
6441        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
6442                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
6443
6444        private static final Validator WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
6445                BOOLEAN_VALIDATOR;
6446
6447        /**
6448         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
6449         * instead.
6450         */
6451        @Deprecated
6452        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
6453                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
6454
6455        private static final Validator WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR =
6456                NON_NEGATIVE_INTEGER_VALIDATOR;
6457
6458        /**
6459         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
6460         * instead.
6461         */
6462        @Deprecated
6463        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
6464                Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
6465
6466        private static final Validator WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR =
6467                NON_NEGATIVE_INTEGER_VALIDATOR;
6468
6469        /**
6470         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
6471         * instead.
6472         */
6473        @Deprecated
6474        public static final String WIFI_ON = Global.WIFI_ON;
6475
6476        /**
6477         * The acceptable packet loss percentage (range 0 - 100) before trying
6478         * another AP on the same network.
6479         * @deprecated This setting is not used.
6480         */
6481        @Deprecated
6482        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
6483                "wifi_watchdog_acceptable_packet_loss_percentage";
6484
6485        /**
6486         * The number of access points required for a network in order for the
6487         * watchdog to monitor it.
6488         * @deprecated This setting is not used.
6489         */
6490        @Deprecated
6491        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
6492
6493        /**
6494         * The delay between background checks.
6495         * @deprecated This setting is not used.
6496         */
6497        @Deprecated
6498        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
6499                "wifi_watchdog_background_check_delay_ms";
6500
6501        /**
6502         * Whether the Wi-Fi watchdog is enabled for background checking even
6503         * after it thinks the user has connected to a good access point.
6504         * @deprecated This setting is not used.
6505         */
6506        @Deprecated
6507        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
6508                "wifi_watchdog_background_check_enabled";
6509
6510        /**
6511         * The timeout for a background ping
6512         * @deprecated This setting is not used.
6513         */
6514        @Deprecated
6515        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
6516                "wifi_watchdog_background_check_timeout_ms";
6517
6518        /**
6519         * The number of initial pings to perform that *may* be ignored if they
6520         * fail. Again, if these fail, they will *not* be used in packet loss
6521         * calculation. For example, one network always seemed to time out for
6522         * the first couple pings, so this is set to 3 by default.
6523         * @deprecated This setting is not used.
6524         */
6525        @Deprecated
6526        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
6527            "wifi_watchdog_initial_ignored_ping_count";
6528
6529        /**
6530         * The maximum number of access points (per network) to attempt to test.
6531         * If this number is reached, the watchdog will no longer monitor the
6532         * initial connection state for the network. This is a safeguard for
6533         * networks containing multiple APs whose DNS does not respond to pings.
6534         * @deprecated This setting is not used.
6535         */
6536        @Deprecated
6537        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
6538
6539        /**
6540         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
6541         */
6542        @Deprecated
6543        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
6544
6545        /**
6546         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
6547         * @deprecated This setting is not used.
6548         */
6549        @Deprecated
6550        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
6551
6552        /**
6553         * The number of pings to test if an access point is a good connection.
6554         * @deprecated This setting is not used.
6555         */
6556        @Deprecated
6557        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
6558
6559        /**
6560         * The delay between pings.
6561         * @deprecated This setting is not used.
6562         */
6563        @Deprecated
6564        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
6565
6566        /**
6567         * The timeout per ping.
6568         * @deprecated This setting is not used.
6569         */
6570        @Deprecated
6571        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
6572
6573        /**
6574         * @deprecated Use
6575         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
6576         */
6577        @Deprecated
6578        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
6579
6580        /**
6581         * @deprecated Use
6582         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
6583         */
6584        @Deprecated
6585        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
6586                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
6587
6588        /**
6589         * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
6590         * the receivers of the PendingIntent an opportunity to make a new network request before
6591         * the Network satisfying the request is potentially removed.
6592         *
6593         * @hide
6594         */
6595        public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
6596                "connectivity_release_pending_intent_delay_ms";
6597
6598        /**
6599         * Whether background data usage is allowed.
6600         *
6601         * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
6602         *             availability of background data depends on several
6603         *             combined factors. When background data is unavailable,
6604         *             {@link ConnectivityManager#getActiveNetworkInfo()} will
6605         *             now appear disconnected.
6606         */
6607        @Deprecated
6608        public static final String BACKGROUND_DATA = "background_data";
6609
6610        /**
6611         * Origins for which browsers should allow geolocation by default.
6612         * The value is a space-separated list of origins.
6613         */
6614        public static final String ALLOWED_GEOLOCATION_ORIGINS
6615                = "allowed_geolocation_origins";
6616
6617        /**
6618         * The preferred TTY mode     0 = TTy Off, CDMA default
6619         *                            1 = TTY Full
6620         *                            2 = TTY HCO
6621         *                            3 = TTY VCO
6622         * @hide
6623         */
6624        public static final String PREFERRED_TTY_MODE =
6625                "preferred_tty_mode";
6626
6627        private static final Validator PREFERRED_TTY_MODE_VALIDATOR =
6628                new SettingsValidators.DiscreteValueValidator(new String[]{"0", "1", "2", "3"});
6629
6630        /**
6631         * Whether the enhanced voice privacy mode is enabled.
6632         * 0 = normal voice privacy
6633         * 1 = enhanced voice privacy
6634         * @hide
6635         */
6636        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
6637
6638        private static final Validator ENHANCED_VOICE_PRIVACY_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
6639
6640        /**
6641         * Whether the TTY mode mode is enabled.
6642         * 0 = disabled
6643         * 1 = enabled
6644         * @hide
6645         */
6646        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
6647
6648        private static final Validator TTY_MODE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
6649
6650        /**
6651         * User-selected RTT mode. When on, outgoing and incoming calls will be answered as RTT
6652         * calls when supported by the device and carrier. Boolean value.
6653         * 0 = OFF
6654         * 1 = ON
6655         */
6656        public static final String RTT_CALLING_MODE = "rtt_calling_mode";
6657
6658        private static final Validator RTT_CALLING_MODE_VALIDATOR = BOOLEAN_VALIDATOR;
6659
6660        /**
6661        /**
6662         * Controls whether settings backup is enabled.
6663         * Type: int ( 0 = disabled, 1 = enabled )
6664         * @hide
6665         */
6666        public static final String BACKUP_ENABLED = "backup_enabled";
6667
6668        /**
6669         * Controls whether application data is automatically restored from backup
6670         * at install time.
6671         * Type: int ( 0 = disabled, 1 = enabled )
6672         * @hide
6673         */
6674        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
6675
6676        /**
6677         * Indicates whether settings backup has been fully provisioned.
6678         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
6679         * @hide
6680         */
6681        public static final String BACKUP_PROVISIONED = "backup_provisioned";
6682
6683        /**
6684         * Component of the transport to use for backup/restore.
6685         * @hide
6686         */
6687        public static final String BACKUP_TRANSPORT = "backup_transport";
6688
6689        /**
6690         * Version for which the setup wizard was last shown.  Bumped for
6691         * each release when there is new setup information to show.
6692         * @hide
6693         */
6694        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
6695
6696        /**
6697         * The interval in milliseconds after which Wi-Fi is considered idle.
6698         * When idle, it is possible for the device to be switched from Wi-Fi to
6699         * the mobile data network.
6700         * @hide
6701         * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
6702         * instead.
6703         */
6704        @Deprecated
6705        public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;
6706
6707        /**
6708         * The global search provider chosen by the user (if multiple global
6709         * search providers are installed). This will be the provider returned
6710         * by {@link SearchManager#getGlobalSearchActivity()} if it's still
6711         * installed. This setting is stored as a flattened component name as
6712         * per {@link ComponentName#flattenToString()}.
6713         *
6714         * @hide
6715         */
6716        public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
6717                "search_global_search_activity";
6718
6719        /**
6720         * The number of promoted sources in GlobalSearch.
6721         * @hide
6722         */
6723        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
6724        /**
6725         * The maximum number of suggestions returned by GlobalSearch.
6726         * @hide
6727         */
6728        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
6729        /**
6730         * The number of suggestions GlobalSearch will ask each non-web search source for.
6731         * @hide
6732         */
6733        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
6734        /**
6735         * The number of suggestions the GlobalSearch will ask the web search source for.
6736         * @hide
6737         */
6738        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
6739                "search_web_results_override_limit";
6740        /**
6741         * The number of milliseconds that GlobalSearch will wait for suggestions from
6742         * promoted sources before continuing with all other sources.
6743         * @hide
6744         */
6745        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
6746                "search_promoted_source_deadline_millis";
6747        /**
6748         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
6749         * @hide
6750         */
6751        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
6752        /**
6753         * The maximum number of milliseconds that GlobalSearch shows the previous results
6754         * after receiving a new query.
6755         * @hide
6756         */
6757        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
6758        /**
6759         * The maximum age of log data used for shortcuts in GlobalSearch.
6760         * @hide
6761         */
6762        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
6763        /**
6764         * The maximum age of log data used for source ranking in GlobalSearch.
6765         * @hide
6766         */
6767        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
6768                "search_max_source_event_age_millis";
6769        /**
6770         * The minimum number of impressions needed to rank a source in GlobalSearch.
6771         * @hide
6772         */
6773        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
6774                "search_min_impressions_for_source_ranking";
6775        /**
6776         * The minimum number of clicks needed to rank a source in GlobalSearch.
6777         * @hide
6778         */
6779        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
6780                "search_min_clicks_for_source_ranking";
6781        /**
6782         * The maximum number of shortcuts shown by GlobalSearch.
6783         * @hide
6784         */
6785        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
6786        /**
6787         * The size of the core thread pool for suggestion queries in GlobalSearch.
6788         * @hide
6789         */
6790        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
6791                "search_query_thread_core_pool_size";
6792        /**
6793         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
6794         * @hide
6795         */
6796        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
6797                "search_query_thread_max_pool_size";
6798        /**
6799         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
6800         * @hide
6801         */
6802        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
6803                "search_shortcut_refresh_core_pool_size";
6804        /**
6805         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
6806         * @hide
6807         */
6808        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
6809                "search_shortcut_refresh_max_pool_size";
6810        /**
6811         * The maximun time that excess threads in the GlobalSeach thread pools will
6812         * wait before terminating.
6813         * @hide
6814         */
6815        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
6816                "search_thread_keepalive_seconds";
6817        /**
6818         * The maximum number of concurrent suggestion queries to each source.
6819         * @hide
6820         */
6821        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
6822                "search_per_source_concurrent_query_limit";
6823
6824        /**
6825         * Whether or not alert sounds are played on StorageManagerService events.
6826         * (0 = false, 1 = true)
6827         * @hide
6828         */
6829        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
6830
6831        private static final Validator MOUNT_PLAY_NOTIFICATION_SND_VALIDATOR = BOOLEAN_VALIDATOR;
6832
6833        /**
6834         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
6835         * @hide
6836         */
6837        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
6838
6839        private static final Validator MOUNT_UMS_AUTOSTART_VALIDATOR = BOOLEAN_VALIDATOR;
6840
6841        /**
6842         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
6843         * @hide
6844         */
6845        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
6846
6847        private static final Validator MOUNT_UMS_PROMPT_VALIDATOR = BOOLEAN_VALIDATOR;
6848
6849        /**
6850         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
6851         * @hide
6852         */
6853        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
6854
6855        private static final Validator MOUNT_UMS_NOTIFY_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
6856
6857        /**
6858         * If nonzero, ANRs in invisible background processes bring up a dialog.
6859         * Otherwise, the process will be silently killed.
6860         *
6861         * Also prevents ANRs and crash dialogs from being suppressed.
6862         * @hide
6863         */
6864        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
6865
6866        /**
6867         * If nonzero, crashes in foreground processes will bring up a dialog.
6868         * Otherwise, the process will be silently killed.
6869         * @hide
6870         */
6871        public static final String SHOW_FIRST_CRASH_DIALOG_DEV_OPTION =
6872                "show_first_crash_dialog_dev_option";
6873
6874        private static final Validator SHOW_FIRST_CRASH_DIALOG_DEV_OPTION_VALIDATOR =
6875                BOOLEAN_VALIDATOR;
6876
6877        /**
6878         * The {@link ComponentName} string of the service to be used as the voice recognition
6879         * service.
6880         *
6881         * @hide
6882         */
6883        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
6884
6885        /**
6886         * Stores whether an user has consented to have apps verified through PAM.
6887         * The value is boolean (1 or 0).
6888         *
6889         * @hide
6890         */
6891        public static final String PACKAGE_VERIFIER_USER_CONSENT =
6892            "package_verifier_user_consent";
6893
6894        /**
6895         * The {@link ComponentName} string of the selected spell checker service which is
6896         * one of the services managed by the text service manager.
6897         *
6898         * @hide
6899         */
6900        public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";
6901
6902        private static final Validator SELECTED_SPELL_CHECKER_VALIDATOR = COMPONENT_NAME_VALIDATOR;
6903
6904        /**
6905         * The {@link ComponentName} string of the selected subtype of the selected spell checker
6906         * service which is one of the services managed by the text service manager.
6907         *
6908         * @hide
6909         */
6910        public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
6911                "selected_spell_checker_subtype";
6912
6913        private static final Validator SELECTED_SPELL_CHECKER_SUBTYPE_VALIDATOR =
6914                COMPONENT_NAME_VALIDATOR;
6915
6916        /**
6917         * Whether spell checker is enabled or not.
6918         *
6919         * @hide
6920         */
6921        public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";
6922
6923        private static final Validator SPELL_CHECKER_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
6924
6925        /**
6926         * What happens when the user presses the Power button while in-call
6927         * and the screen is on.<br/>
6928         * <b>Values:</b><br/>
6929         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
6930         * 2 - The Power button hangs up the current call.<br/>
6931         *
6932         * @hide
6933         */
6934        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
6935
6936        private static final Validator INCALL_POWER_BUTTON_BEHAVIOR_VALIDATOR =
6937                new SettingsValidators.DiscreteValueValidator(new String[]{"1", "2"});
6938
6939        /**
6940         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
6941         * @hide
6942         */
6943        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
6944
6945        /**
6946         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
6947         * @hide
6948         */
6949        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
6950
6951        /**
6952         * INCALL_POWER_BUTTON_BEHAVIOR default value.
6953         * @hide
6954         */
6955        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
6956                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
6957
6958        /**
6959         * What happens when the user presses the Back button while in-call
6960         * and the screen is on.<br/>
6961         * <b>Values:</b><br/>
6962         * 0 - The Back buttons does nothing different.<br/>
6963         * 1 - The Back button hangs up the current call.<br/>
6964         *
6965         * @hide
6966         */
6967        public static final String INCALL_BACK_BUTTON_BEHAVIOR = "incall_back_button_behavior";
6968
6969        /**
6970         * INCALL_BACK_BUTTON_BEHAVIOR value for no action.
6971         * @hide
6972         */
6973        public static final int INCALL_BACK_BUTTON_BEHAVIOR_NONE = 0x0;
6974
6975        /**
6976         * INCALL_BACK_BUTTON_BEHAVIOR value for "hang up".
6977         * @hide
6978         */
6979        public static final int INCALL_BACK_BUTTON_BEHAVIOR_HANGUP = 0x1;
6980
6981        /**
6982         * INCALL_POWER_BUTTON_BEHAVIOR default value.
6983         * @hide
6984         */
6985        public static final int INCALL_BACK_BUTTON_BEHAVIOR_DEFAULT =
6986                INCALL_BACK_BUTTON_BEHAVIOR_NONE;
6987
6988        /**
6989         * Whether the device should wake when the wake gesture sensor detects motion.
6990         * @hide
6991         */
6992        public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";
6993
6994        private static final Validator WAKE_GESTURE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
6995
6996        /**
6997         * Whether the device should doze if configured.
6998         * @hide
6999         */
7000        public static final String DOZE_ENABLED = "doze_enabled";
7001
7002        private static final Validator DOZE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
7003
7004        /**
7005         * Whether doze should be always on.
7006         * @hide
7007         */
7008        public static final String DOZE_ALWAYS_ON = "doze_always_on";
7009
7010        /**
7011         * Whether the device should pulse on pick up gesture.
7012         * @hide
7013         */
7014        public static final String DOZE_PULSE_ON_PICK_UP = "doze_pulse_on_pick_up";
7015
7016        private static final Validator DOZE_PULSE_ON_PICK_UP_VALIDATOR = BOOLEAN_VALIDATOR;
7017
7018        /**
7019         * Whether the device should pulse on long press gesture.
7020         * @hide
7021         */
7022        public static final String DOZE_PULSE_ON_LONG_PRESS = "doze_pulse_on_long_press";
7023
7024        /**
7025         * Whether the device should pulse on double tap gesture.
7026         * @hide
7027         */
7028        public static final String DOZE_PULSE_ON_DOUBLE_TAP = "doze_pulse_on_double_tap";
7029
7030        private static final Validator DOZE_PULSE_ON_DOUBLE_TAP_VALIDATOR = BOOLEAN_VALIDATOR;
7031
7032        /**
7033         * The current night mode that has been selected by the user.  Owned
7034         * and controlled by UiModeManagerService.  Constants are as per
7035         * UiModeManager.
7036         * @hide
7037         */
7038        public static final String UI_NIGHT_MODE = "ui_night_mode";
7039
7040        /**
7041         * Whether screensavers are enabled.
7042         * @hide
7043         */
7044        public static final String SCREENSAVER_ENABLED = "screensaver_enabled";
7045
7046        private static final Validator SCREENSAVER_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
7047
7048        /**
7049         * The user's chosen screensaver components.
7050         *
7051         * These will be launched by the PhoneWindowManager after a timeout when not on
7052         * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
7053         * @hide
7054         */
7055        public static final String SCREENSAVER_COMPONENTS = "screensaver_components";
7056
7057        private static final Validator SCREENSAVER_COMPONENTS_VALIDATOR =
7058                new SettingsValidators.ComponentNameListValidator(",");
7059
7060        /**
7061         * If screensavers are enabled, whether the screensaver should be automatically launched
7062         * when the device is inserted into a (desk) dock.
7063         * @hide
7064         */
7065        public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";
7066
7067        private static final Validator SCREENSAVER_ACTIVATE_ON_DOCK_VALIDATOR = BOOLEAN_VALIDATOR;
7068
7069        /**
7070         * If screensavers are enabled, whether the screensaver should be automatically launched
7071         * when the screen times out when not on battery.
7072         * @hide
7073         */
7074        public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";
7075
7076        private static final Validator SCREENSAVER_ACTIVATE_ON_SLEEP_VALIDATOR = BOOLEAN_VALIDATOR;
7077
7078        /**
7079         * If screensavers are enabled, the default screensaver component.
7080         * @hide
7081         */
7082        public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";
7083
7084        /**
7085         * The default NFC payment component
7086         * @hide
7087         */
7088        public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";
7089
7090        private static final Validator NFC_PAYMENT_DEFAULT_COMPONENT_VALIDATOR =
7091                COMPONENT_NAME_VALIDATOR;
7092
7093        /**
7094         * Whether NFC payment is handled by the foreground application or a default.
7095         * @hide
7096         */
7097        public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";
7098
7099        /**
7100         * Specifies the package name currently configured to be the primary sms application
7101         * @hide
7102         */
7103        public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";
7104
7105        /**
7106         * Specifies the package name currently configured to be the default dialer application
7107         * @hide
7108         */
7109        public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";
7110
7111        /**
7112         * Specifies the package name currently configured to be the emergency assistance application
7113         *
7114         * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
7115         *
7116         * @hide
7117         */
7118        public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";
7119
7120        /**
7121         * Specifies whether the current app context on scren (assist data) will be sent to the
7122         * assist application (active voice interaction service).
7123         *
7124         * @hide
7125         */
7126        public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";
7127
7128        /**
7129         * Specifies whether a screenshot of the screen contents will be sent to the assist
7130         * application (active voice interaction service).
7131         *
7132         * @hide
7133         */
7134        public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";
7135
7136        /**
7137         * Specifies whether the screen will show an animation if screen contents are sent to the
7138         * assist application (active voice interaction service).
7139         *
7140         * Note that the disclosure will be forced for third-party assistants or if the device
7141         * does not support disabling it.
7142         *
7143         * @hide
7144         */
7145        public static final String ASSIST_DISCLOSURE_ENABLED = "assist_disclosure_enabled";
7146
7147        /**
7148         * Control if rotation suggestions are sent to System UI when in rotation locked mode.
7149         * Done to enable screen rotation while the the screen rotation is locked. Enabling will
7150         * poll the accelerometer in rotation locked mode.
7151         *
7152         * If 0, then rotation suggestions are not sent to System UI. If 1, suggestions are sent.
7153         *
7154         * @hide
7155         */
7156
7157        public static final String SHOW_ROTATION_SUGGESTIONS = "show_rotation_suggestions";
7158
7159        /**
7160         * The disabled state of SHOW_ROTATION_SUGGESTIONS.
7161         * @hide
7162         */
7163        public static final int SHOW_ROTATION_SUGGESTIONS_DISABLED = 0x0;
7164
7165        /**
7166         * The enabled state of SHOW_ROTATION_SUGGESTIONS.
7167         * @hide
7168         */
7169        public static final int SHOW_ROTATION_SUGGESTIONS_ENABLED = 0x1;
7170
7171        /**
7172         * The default state of SHOW_ROTATION_SUGGESTIONS.
7173         * @hide
7174         */
7175        public static final int SHOW_ROTATION_SUGGESTIONS_DEFAULT =
7176                SHOW_ROTATION_SUGGESTIONS_ENABLED;
7177
7178        /**
7179         * The number of accepted rotation suggestions. Used to determine if the user has been
7180         * introduced to rotation suggestions.
7181         * @hide
7182         */
7183        public static final String NUM_ROTATION_SUGGESTIONS_ACCEPTED =
7184                "num_rotation_suggestions_accepted";
7185
7186        /**
7187         * Read only list of the service components that the current user has explicitly allowed to
7188         * see and assist with all of the user's notifications.
7189         *
7190         * @deprecated Use
7191         * {@link NotificationManager#isNotificationListenerAccessGranted(ComponentName)}.
7192         * @hide
7193         */
7194        @Deprecated
7195        public static final String ENABLED_NOTIFICATION_ASSISTANT =
7196                "enabled_notification_assistant";
7197
7198        private static final Validator ENABLED_NOTIFICATION_ASSISTANT_VALIDATOR =
7199                new SettingsValidators.ComponentNameListValidator(":");
7200
7201        /**
7202         * Read only list of the service components that the current user has explicitly allowed to
7203         * see all of the user's notifications, separated by ':'.
7204         *
7205         * @hide
7206         * @deprecated Use
7207         * {@link NotificationManager#isNotificationAssistantAccessGranted(ComponentName)}.
7208         */
7209        @Deprecated
7210        public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
7211
7212        private static final Validator ENABLED_NOTIFICATION_LISTENERS_VALIDATOR =
7213                new SettingsValidators.ComponentNameListValidator(":");
7214
7215        /**
7216         * Read only list of the packages that the current user has explicitly allowed to
7217         * manage do not disturb, separated by ':'.
7218         *
7219         * @deprecated Use {@link NotificationManager#isNotificationPolicyAccessGranted()}.
7220         * @hide
7221         */
7222        @Deprecated
7223        @TestApi
7224        public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
7225                "enabled_notification_policy_access_packages";
7226
7227        private static final Validator ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES_VALIDATOR =
7228                new SettingsValidators.PackageNameListValidator(":");
7229
7230        /**
7231         * Defines whether managed profile ringtones should be synced from it's parent profile
7232         * <p>
7233         * 0 = ringtones are not synced
7234         * 1 = ringtones are synced from the profile's parent (default)
7235         * <p>
7236         * This value is only used for managed profiles.
7237         * @hide
7238         */
7239        @TestApi
7240        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
7241        public static final String SYNC_PARENT_SOUNDS = "sync_parent_sounds";
7242
7243        private static final Validator SYNC_PARENT_SOUNDS_VALIDATOR = BOOLEAN_VALIDATOR;
7244
7245        /** @hide */
7246        public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";
7247
7248        /**
7249         * This is the query URI for finding a print service to install.
7250         *
7251         * @hide
7252         */
7253        public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";
7254
7255        /**
7256         * This is the query URI for finding a NFC payment service to install.
7257         *
7258         * @hide
7259         */
7260        public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";
7261
7262        /**
7263         * This is the query URI for finding a auto fill service to install.
7264         *
7265         * @hide
7266         */
7267        public static final String AUTOFILL_SERVICE_SEARCH_URI = "autofill_service_search_uri";
7268
7269        /**
7270         * If enabled, apps should try to skip any introductory hints on first launch. This might
7271         * apply to users that are already familiar with the environment or temporary users.
7272         * <p>
7273         * Type : int (0 to show hints, 1 to skip showing hints)
7274         */
7275        public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";
7276
7277        /**
7278         * Persisted playback time after a user confirmation of an unsafe volume level.
7279         *
7280         * @hide
7281         */
7282        public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";
7283
7284        /**
7285         * This preference enables notification display on the lockscreen.
7286         * @hide
7287         */
7288        public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
7289                "lock_screen_show_notifications";
7290
7291        /**
7292         * List of TV inputs that are currently hidden. This is a string
7293         * containing the IDs of all hidden TV inputs. Each ID is encoded by
7294         * {@link android.net.Uri#encode(String)} and separated by ':'.
7295         * @hide
7296         */
7297        public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";
7298
7299        /**
7300         * List of custom TV input labels. This is a string containing <TV input id, custom name>
7301         * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
7302         * and separated by ','. Each pair is separated by ':'.
7303         * @hide
7304         */
7305        public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";
7306
7307        /**
7308         * Whether automatic routing of system audio to USB audio peripheral is disabled.
7309         * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
7310         * and 0 means automatic routing is enabled.
7311         *
7312         * @hide
7313         */
7314        public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
7315                "usb_audio_automatic_routing_disabled";
7316
7317        /**
7318         * The timeout in milliseconds before the device fully goes to sleep after
7319         * a period of inactivity.  This value sets an upper bound on how long the device
7320         * will stay awake or dreaming without user activity.  It should generally
7321         * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
7322         * will sleep before it ever has a chance to dream.
7323         * <p>
7324         * Use -1 to disable this timeout.
7325         * </p>
7326         *
7327         * @hide
7328         */
7329        public static final String SLEEP_TIMEOUT = "sleep_timeout";
7330
7331        private static final Validator SLEEP_TIMEOUT_VALIDATOR =
7332                new SettingsValidators.InclusiveIntegerRangeValidator(-1, Integer.MAX_VALUE);
7333
7334        /**
7335         * Controls whether double tap to wake is enabled.
7336         * @hide
7337         */
7338        public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";
7339
7340        private static final Validator DOUBLE_TAP_TO_WAKE_VALIDATOR = BOOLEAN_VALIDATOR;
7341
7342        /**
7343         * The current assistant component. It could be a voice interaction service,
7344         * or an activity that handles ACTION_ASSIST, or empty which means using the default
7345         * handling.
7346         *
7347         * @hide
7348         */
7349        public static final String ASSISTANT = "assistant";
7350
7351        /**
7352         * Whether the camera launch gesture should be disabled.
7353         *
7354         * @hide
7355         */
7356        public static final String CAMERA_GESTURE_DISABLED = "camera_gesture_disabled";
7357
7358        private static final Validator CAMERA_GESTURE_DISABLED_VALIDATOR = BOOLEAN_VALIDATOR;
7359
7360        /**
7361         * Whether the camera launch gesture to double tap the power button when the screen is off
7362         * should be disabled.
7363         *
7364         * @hide
7365         */
7366        public static final String CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED =
7367                "camera_double_tap_power_gesture_disabled";
7368
7369        private static final Validator CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED_VALIDATOR =
7370                BOOLEAN_VALIDATOR;
7371
7372        /**
7373         * Whether the camera double twist gesture to flip between front and back mode should be
7374         * enabled.
7375         *
7376         * @hide
7377         */
7378        public static final String CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED =
7379                "camera_double_twist_to_flip_enabled";
7380
7381        private static final Validator CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED_VALIDATOR =
7382                BOOLEAN_VALIDATOR;
7383
7384        /**
7385         * Whether the swipe up gesture to switch apps should be enabled.
7386         *
7387         * @hide
7388         */
7389        public static final String SWIPE_UP_TO_SWITCH_APPS_ENABLED =
7390                "swipe_up_to_switch_apps_enabled";
7391
7392        private static final Validator SWIPE_UP_TO_SWITCH_APPS_ENABLED_VALIDATOR =
7393                BOOLEAN_VALIDATOR;
7394
7395        /**
7396         * Whether or not the smart camera lift trigger that launches the camera when the user moves
7397         * the phone into a position for taking photos should be enabled.
7398         *
7399         * @hide
7400         */
7401        public static final String CAMERA_LIFT_TRIGGER_ENABLED = "camera_lift_trigger_enabled";
7402
7403        /**
7404         * The default enable state of the camera lift trigger.
7405         *
7406         * @hide
7407         */
7408        public static final int CAMERA_LIFT_TRIGGER_ENABLED_DEFAULT = 1;
7409
7410        /**
7411         * Whether the assist gesture should be enabled.
7412         *
7413         * @hide
7414         */
7415        public static final String ASSIST_GESTURE_ENABLED = "assist_gesture_enabled";
7416
7417        private static final Validator ASSIST_GESTURE_ENABLED_VALIDATOR =
7418                BOOLEAN_VALIDATOR;
7419
7420        /**
7421         * Sensitivity control for the assist gesture.
7422         *
7423         * @hide
7424         */
7425        public static final String ASSIST_GESTURE_SENSITIVITY = "assist_gesture_sensitivity";
7426
7427        private static final Validator ASSIST_GESTURE_SENSITIVITY_VALIDATOR =
7428                new SettingsValidators.InclusiveFloatRangeValidator(0.0f, 1.0f);
7429
7430        /**
7431         * Whether the assist gesture should silence alerts.
7432         *
7433         * @hide
7434         */
7435        public static final String ASSIST_GESTURE_SILENCE_ALERTS_ENABLED =
7436                "assist_gesture_silence_alerts_enabled";
7437
7438        private static final Validator ASSIST_GESTURE_SILENCE_ALERTS_ENABLED_VALIDATOR =
7439                BOOLEAN_VALIDATOR;
7440
7441        /**
7442         * Whether the assist gesture should wake the phone.
7443         *
7444         * @hide
7445         */
7446        public static final String ASSIST_GESTURE_WAKE_ENABLED =
7447                "assist_gesture_wake_enabled";
7448
7449        private static final Validator ASSIST_GESTURE_WAKE_ENABLED_VALIDATOR =
7450                BOOLEAN_VALIDATOR;
7451
7452        /**
7453         * Whether Assist Gesture Deferred Setup has been completed
7454         *
7455         * @hide
7456         */
7457        public static final String ASSIST_GESTURE_SETUP_COMPLETE = "assist_gesture_setup_complete";
7458
7459        private static final Validator ASSIST_GESTURE_SETUP_COMPLETE_VALIDATOR = BOOLEAN_VALIDATOR;
7460
7461        /**
7462         * Control whether Night display is currently activated.
7463         * @hide
7464         */
7465        public static final String NIGHT_DISPLAY_ACTIVATED = "night_display_activated";
7466
7467        /**
7468         * Control whether Night display will automatically activate/deactivate.
7469         * @hide
7470         */
7471        public static final String NIGHT_DISPLAY_AUTO_MODE = "night_display_auto_mode";
7472
7473        private static final Validator NIGHT_DISPLAY_AUTO_MODE_VALIDATOR =
7474                new SettingsValidators.InclusiveIntegerRangeValidator(0, 2);
7475
7476        /**
7477         * Control the color temperature of Night Display, represented in Kelvin.
7478         * @hide
7479         */
7480        public static final String NIGHT_DISPLAY_COLOR_TEMPERATURE =
7481                "night_display_color_temperature";
7482
7483        private static final Validator NIGHT_DISPLAY_COLOR_TEMPERATURE_VALIDATOR =
7484                NON_NEGATIVE_INTEGER_VALIDATOR;
7485
7486        /**
7487         * Custom time when Night display is scheduled to activate.
7488         * Represented as milliseconds from midnight (e.g. 79200000 == 10pm).
7489         * @hide
7490         */
7491        public static final String NIGHT_DISPLAY_CUSTOM_START_TIME =
7492                "night_display_custom_start_time";
7493
7494        private static final Validator NIGHT_DISPLAY_CUSTOM_START_TIME_VALIDATOR =
7495                NON_NEGATIVE_INTEGER_VALIDATOR;
7496
7497        /**
7498         * Custom time when Night display is scheduled to deactivate.
7499         * Represented as milliseconds from midnight (e.g. 21600000 == 6am).
7500         * @hide
7501         */
7502        public static final String NIGHT_DISPLAY_CUSTOM_END_TIME = "night_display_custom_end_time";
7503
7504        private static final Validator NIGHT_DISPLAY_CUSTOM_END_TIME_VALIDATOR =
7505                NON_NEGATIVE_INTEGER_VALIDATOR;
7506
7507        /**
7508         * A String representing the LocalDateTime when Night display was last activated. Use to
7509         * decide whether to apply the current activated state after a reboot or user change. In
7510         * legacy cases, this is represented by the time in milliseconds (since epoch).
7511         * @hide
7512         */
7513        public static final String NIGHT_DISPLAY_LAST_ACTIVATED_TIME =
7514                "night_display_last_activated_time";
7515
7516        /**
7517         * Names of the service components that the current user has explicitly allowed to
7518         * be a VR mode listener, separated by ':'.
7519         *
7520         * @hide
7521         */
7522        public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners";
7523
7524        private static final Validator ENABLED_VR_LISTENERS_VALIDATOR =
7525                new SettingsValidators.ComponentNameListValidator(":");
7526
7527        /**
7528         * Behavior of the display while in VR mode.
7529         *
7530         * One of {@link #VR_DISPLAY_MODE_LOW_PERSISTENCE} or {@link #VR_DISPLAY_MODE_OFF}.
7531         *
7532         * @hide
7533         */
7534        public static final String VR_DISPLAY_MODE = "vr_display_mode";
7535
7536        private static final Validator VR_DISPLAY_MODE_VALIDATOR =
7537                new SettingsValidators.DiscreteValueValidator(new String[]{"0", "1"});
7538
7539        /**
7540         * Lower the display persistence while the system is in VR mode.
7541         *
7542         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
7543         *
7544         * @hide.
7545         */
7546        public static final int VR_DISPLAY_MODE_LOW_PERSISTENCE = 0;
7547
7548        /**
7549         * Do not alter the display persistence while the system is in VR mode.
7550         *
7551         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
7552         *
7553         * @hide.
7554         */
7555        public static final int VR_DISPLAY_MODE_OFF = 1;
7556
7557        /**
7558         * Whether CarrierAppUtils#disableCarrierAppsUntilPrivileged has been executed at least
7559         * once.
7560         *
7561         * <p>This is used to ensure that we only take one pass which will disable apps that are not
7562         * privileged (if any). From then on, we only want to enable apps (when a matching SIM is
7563         * inserted), to avoid disabling an app that the user might actively be using.
7564         *
7565         * <p>Will be set to 1 once executed.
7566         *
7567         * @hide
7568         */
7569        public static final String CARRIER_APPS_HANDLED = "carrier_apps_handled";
7570
7571        /**
7572         * Whether parent user can access remote contact in managed profile.
7573         *
7574         * @hide
7575         */
7576        public static final String MANAGED_PROFILE_CONTACT_REMOTE_SEARCH =
7577                "managed_profile_contact_remote_search";
7578
7579        /**
7580         * Whether or not the automatic storage manager is enabled and should run on the device.
7581         *
7582         * @hide
7583         */
7584        public static final String AUTOMATIC_STORAGE_MANAGER_ENABLED =
7585                "automatic_storage_manager_enabled";
7586
7587        /**
7588         * How many days of information for the automatic storage manager to retain on the device.
7589         *
7590         * @hide
7591         */
7592        public static final String AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN =
7593                "automatic_storage_manager_days_to_retain";
7594
7595        private static final Validator AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_VALIDATOR =
7596                NON_NEGATIVE_INTEGER_VALIDATOR;
7597
7598        /**
7599         * Default number of days of information for the automatic storage manager to retain.
7600         *
7601         * @hide
7602         */
7603        public static final int AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_DEFAULT = 90;
7604
7605        /**
7606         * How many bytes the automatic storage manager has cleared out.
7607         *
7608         * @hide
7609         */
7610        public static final String AUTOMATIC_STORAGE_MANAGER_BYTES_CLEARED =
7611                "automatic_storage_manager_bytes_cleared";
7612
7613
7614        /**
7615         * Last run time for the automatic storage manager.
7616         *
7617         * @hide
7618         */
7619        public static final String AUTOMATIC_STORAGE_MANAGER_LAST_RUN =
7620                "automatic_storage_manager_last_run";
7621
7622        /**
7623         * If the automatic storage manager has been disabled by policy. Note that this doesn't
7624         * mean that the automatic storage manager is prevented from being re-enabled -- this only
7625         * means that it was turned off by policy at least once.
7626         *
7627         * @hide
7628         */
7629        public static final String AUTOMATIC_STORAGE_MANAGER_TURNED_OFF_BY_POLICY =
7630                "automatic_storage_manager_turned_off_by_policy";
7631
7632        /**
7633         * Whether SystemUI navigation keys is enabled.
7634         * @hide
7635         */
7636        public static final String SYSTEM_NAVIGATION_KEYS_ENABLED =
7637                "system_navigation_keys_enabled";
7638
7639        private static final Validator SYSTEM_NAVIGATION_KEYS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
7640
7641        /**
7642         * Holds comma separated list of ordering of QS tiles.
7643         * @hide
7644         */
7645        public static final String QS_TILES = "sysui_qs_tiles";
7646
7647        private static final Validator QS_TILES_VALIDATOR = new Validator() {
7648            @Override
7649            public boolean validate(String value) {
7650                if (value == null) {
7651                    return false;
7652                }
7653                String[] tiles = value.split(",");
7654                boolean valid = true;
7655                for (String tile : tiles) {
7656                    // tile can be any non-empty string as specified by OEM
7657                    valid |= ((tile.length() > 0) && ANY_STRING_VALIDATOR.validate(tile));
7658                }
7659                return valid;
7660            }
7661        };
7662
7663        /**
7664         * Specifies whether the web action API is enabled.
7665         *
7666         * @hide
7667         */
7668        @SystemApi
7669        public static final String INSTANT_APPS_ENABLED = "instant_apps_enabled";
7670
7671        /**
7672         * Has this pairable device been paired or upgraded from a previously paired system.
7673         * @hide
7674         */
7675        public static final String DEVICE_PAIRED = "device_paired";
7676
7677        /**
7678         * Integer state indicating whether package verifier is enabled.
7679         * TODO(b/34259924): Remove this setting.
7680         *
7681         * @hide
7682         */
7683        public static final String PACKAGE_VERIFIER_STATE = "package_verifier_state";
7684
7685        /**
7686         * Specifies additional package name for broadcasting the CMAS messages.
7687         * @hide
7688         */
7689        public static final String CMAS_ADDITIONAL_BROADCAST_PKG = "cmas_additional_broadcast_pkg";
7690
7691        /**
7692         * Whether the launcher should show any notification badges.
7693         * The value is boolean (1 or 0).
7694         * @hide
7695         */
7696        public static final String NOTIFICATION_BADGING = "notification_badging";
7697
7698        private static final Validator NOTIFICATION_BADGING_VALIDATOR = BOOLEAN_VALIDATOR;
7699
7700        /**
7701         * Comma separated list of QS tiles that have been auto-added already.
7702         * @hide
7703         */
7704        public static final String QS_AUTO_ADDED_TILES = "qs_auto_tiles";
7705
7706        private static final Validator QS_AUTO_ADDED_TILES_VALIDATOR = new Validator() {
7707            @Override
7708            public boolean validate(String value) {
7709                if (value == null) {
7710                    return false;
7711                }
7712                String[] tiles = value.split(",");
7713                boolean valid = true;
7714                for (String tile : tiles) {
7715                    // tile can be any non-empty string as specified by OEM
7716                    valid |= ((tile.length() > 0) && ANY_STRING_VALIDATOR.validate(tile));
7717                }
7718                return valid;
7719            }
7720        };
7721
7722        /**
7723         * Whether the Lockdown button should be shown in the power menu.
7724         * @hide
7725         */
7726        public static final String LOCKDOWN_IN_POWER_MENU = "lockdown_in_power_menu";
7727
7728        private static final Validator LOCKDOWN_IN_POWER_MENU_VALIDATOR = BOOLEAN_VALIDATOR;
7729
7730        /**
7731         * Backup manager behavioral parameters.
7732         * This is encoded as a key=value list, separated by commas. Ex:
7733         *
7734         * "key_value_backup_interval_milliseconds=14400000,key_value_backup_require_charging=true"
7735         *
7736         * The following keys are supported:
7737         *
7738         * <pre>
7739         * key_value_backup_interval_milliseconds  (long)
7740         * key_value_backup_fuzz_milliseconds      (long)
7741         * key_value_backup_require_charging       (boolean)
7742         * key_value_backup_required_network_type  (int)
7743         * full_backup_interval_milliseconds       (long)
7744         * full_backup_require_charging            (boolean)
7745         * full_backup_required_network_type       (int)
7746         * backup_finished_notification_receivers  (String[])
7747         * </pre>
7748         *
7749         * backup_finished_notification_receivers uses ":" as delimeter for values.
7750         *
7751         * <p>
7752         * Type: string
7753         * @hide
7754         */
7755        public static final String BACKUP_MANAGER_CONSTANTS = "backup_manager_constants";
7756
7757
7758        /**
7759         * Local transport parameters so we can configure it for tests.
7760         * This is encoded as a key=value list, separated by commas.
7761         *
7762         * The following keys are supported:
7763         *
7764         * <pre>
7765         * fake_encryption_flag  (boolean)
7766         * </pre>
7767         *
7768         * <p>
7769         * Type: string
7770         * @hide
7771         */
7772        public static final String BACKUP_LOCAL_TRANSPORT_PARAMETERS =
7773                "backup_local_transport_parameters";
7774
7775        /**
7776         * Flag to set if the system should predictively attempt to re-enable Bluetooth while
7777         * the user is driving.
7778         * @hide
7779         */
7780        public static final String BLUETOOTH_ON_WHILE_DRIVING = "bluetooth_on_while_driving";
7781
7782        /**
7783         * What behavior should be invoked when the volume hush gesture is triggered
7784         * One of VOLUME_HUSH_OFF, VOLUME_HUSH_VIBRATE, VOLUME_HUSH_MUTE.
7785         *
7786         * @hide
7787         */
7788        public static final String VOLUME_HUSH_GESTURE = "volume_hush_gesture";
7789
7790        /** @hide */ public static final int VOLUME_HUSH_OFF = 0;
7791        /** @hide */ public static final int VOLUME_HUSH_VIBRATE = 1;
7792        /** @hide */ public static final int VOLUME_HUSH_MUTE = 2;
7793
7794        private static final Validator VOLUME_HUSH_GESTURE_VALIDATOR =
7795                NON_NEGATIVE_INTEGER_VALIDATOR;
7796
7797        /**
7798         * The number of times (integer) the user has manually enabled battery saver.
7799         * @hide
7800         */
7801        public static final String LOW_POWER_MANUAL_ACTIVATION_COUNT =
7802                "low_power_manual_activation_count";
7803
7804        /**
7805         * Whether the "first time battery saver warning" dialog needs to be shown (0: default)
7806         * or not (1).
7807         *
7808         * @hide
7809         */
7810        public static final String LOW_POWER_WARNING_ACKNOWLEDGED =
7811                "low_power_warning_acknowledged";
7812
7813        /**
7814         * 0 (default) Auto battery saver suggestion has not been suppressed. 1) it has been
7815         * suppressed.
7816         * @hide
7817         */
7818        public static final String SUPPRESS_AUTO_BATTERY_SAVER_SUGGESTION =
7819                "suppress_auto_battery_saver_suggestion";
7820
7821        /**
7822         * List of packages, which data need to be unconditionally cleared before full restore.
7823         * Type: string
7824         * @hide
7825         */
7826        public static final String PACKAGES_TO_CLEAR_DATA_BEFORE_FULL_RESTORE =
7827                "packages_to_clear_data_before_full_restore";
7828
7829        /**
7830         * This are the settings to be backed up.
7831         *
7832         * NOTE: Settings are backed up and restored in the order they appear
7833         *       in this array. If you have one setting depending on another,
7834         *       make sure that they are ordered appropriately.
7835         *
7836         * @hide
7837         */
7838        public static final String[] SETTINGS_TO_BACKUP = {
7839            BUGREPORT_IN_POWER_MENU,                            // moved to global
7840            ALLOW_MOCK_LOCATION,
7841            USB_MASS_STORAGE_ENABLED,                           // moved to global
7842            ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
7843            ACCESSIBILITY_DISPLAY_DALTONIZER,
7844            ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
7845            ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
7846            ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
7847            AUTOFILL_SERVICE,
7848            ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
7849            ENABLED_ACCESSIBILITY_SERVICES,
7850            ENABLED_VR_LISTENERS,
7851            TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
7852            TOUCH_EXPLORATION_ENABLED,
7853            ACCESSIBILITY_ENABLED,
7854            ACCESSIBILITY_SHORTCUT_TARGET_SERVICE,
7855            ACCESSIBILITY_BUTTON_TARGET_COMPONENT,
7856            ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN,
7857            ACCESSIBILITY_SHORTCUT_ENABLED,
7858            ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN,
7859            ACCESSIBILITY_SPEAK_PASSWORD,
7860            ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
7861            ACCESSIBILITY_CAPTIONING_PRESET,
7862            ACCESSIBILITY_CAPTIONING_ENABLED,
7863            ACCESSIBILITY_CAPTIONING_LOCALE,
7864            ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
7865            ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
7866            ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
7867            ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
7868            ACCESSIBILITY_CAPTIONING_TYPEFACE,
7869            ACCESSIBILITY_CAPTIONING_FONT_SCALE,
7870            ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
7871            TTS_DEFAULT_RATE,
7872            TTS_DEFAULT_PITCH,
7873            TTS_DEFAULT_SYNTH,
7874            TTS_ENABLED_PLUGINS,
7875            TTS_DEFAULT_LOCALE,
7876            SHOW_IME_WITH_HARD_KEYBOARD,
7877            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
7878            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
7879            WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
7880            SELECTED_SPELL_CHECKER,
7881            SELECTED_SPELL_CHECKER_SUBTYPE,
7882            SPELL_CHECKER_ENABLED,
7883            MOUNT_PLAY_NOTIFICATION_SND,
7884            MOUNT_UMS_AUTOSTART,
7885            MOUNT_UMS_PROMPT,
7886            MOUNT_UMS_NOTIFY_ENABLED,
7887            SLEEP_TIMEOUT,
7888            DOUBLE_TAP_TO_WAKE,
7889            WAKE_GESTURE_ENABLED,
7890            LONG_PRESS_TIMEOUT,
7891            CAMERA_GESTURE_DISABLED,
7892            ACCESSIBILITY_AUTOCLICK_ENABLED,
7893            ACCESSIBILITY_AUTOCLICK_DELAY,
7894            ACCESSIBILITY_LARGE_POINTER_ICON,
7895            PREFERRED_TTY_MODE,
7896            ENHANCED_VOICE_PRIVACY_ENABLED,
7897            TTY_MODE_ENABLED,
7898            RTT_CALLING_MODE,
7899            INCALL_POWER_BUTTON_BEHAVIOR,
7900            NIGHT_DISPLAY_CUSTOM_START_TIME,
7901            NIGHT_DISPLAY_CUSTOM_END_TIME,
7902            NIGHT_DISPLAY_COLOR_TEMPERATURE,
7903            NIGHT_DISPLAY_AUTO_MODE,
7904            SYNC_PARENT_SOUNDS,
7905            CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED,
7906            SWIPE_UP_TO_SWITCH_APPS_ENABLED,
7907            CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED,
7908            SYSTEM_NAVIGATION_KEYS_ENABLED,
7909            QS_TILES,
7910            DOZE_ENABLED,
7911            DOZE_PULSE_ON_PICK_UP,
7912            DOZE_PULSE_ON_DOUBLE_TAP,
7913            NFC_PAYMENT_DEFAULT_COMPONENT,
7914            AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN,
7915            ASSIST_GESTURE_ENABLED,
7916            ASSIST_GESTURE_SENSITIVITY,
7917            ASSIST_GESTURE_SETUP_COMPLETE,
7918            ASSIST_GESTURE_SILENCE_ALERTS_ENABLED,
7919            ASSIST_GESTURE_WAKE_ENABLED,
7920            VR_DISPLAY_MODE,
7921            NOTIFICATION_BADGING,
7922            QS_AUTO_ADDED_TILES,
7923            SCREENSAVER_ENABLED,
7924            SCREENSAVER_COMPONENTS,
7925            SCREENSAVER_ACTIVATE_ON_DOCK,
7926            SCREENSAVER_ACTIVATE_ON_SLEEP,
7927            LOCKDOWN_IN_POWER_MENU,
7928            SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
7929            VOLUME_HUSH_GESTURE
7930        };
7931
7932        /**
7933         * All settings in {@link SETTINGS_TO_BACKUP} array *must* have a non-null validator,
7934         * otherwise they won't be restored.
7935         *
7936         * @hide
7937         */
7938        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
7939        static {
7940            VALIDATORS.put(BUGREPORT_IN_POWER_MENU, BUGREPORT_IN_POWER_MENU_VALIDATOR);
7941            VALIDATORS.put(ALLOW_MOCK_LOCATION, ALLOW_MOCK_LOCATION_VALIDATOR);
7942            VALIDATORS.put(USB_MASS_STORAGE_ENABLED, USB_MASS_STORAGE_ENABLED_VALIDATOR);
7943            VALIDATORS.put(ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
7944                    ACCESSIBILITY_DISPLAY_INVERSION_ENABLED_VALIDATOR);
7945            VALIDATORS.put(ACCESSIBILITY_DISPLAY_DALTONIZER,
7946                    ACCESSIBILITY_DISPLAY_DALTONIZER_VALIDATOR);
7947            VALIDATORS.put(ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
7948                    ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED_VALIDATOR);
7949            VALIDATORS.put(ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
7950                    ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED_VALIDATOR);
7951            VALIDATORS.put(ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
7952                    ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED_VALIDATOR);
7953            VALIDATORS.put(AUTOFILL_SERVICE, AUTOFILL_SERVICE_VALIDATOR);
7954            VALIDATORS.put(ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
7955                    ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE_VALIDATOR);
7956            VALIDATORS.put(ENABLED_ACCESSIBILITY_SERVICES,
7957                    ENABLED_ACCESSIBILITY_SERVICES_VALIDATOR);
7958            VALIDATORS.put(ENABLED_VR_LISTENERS, ENABLED_VR_LISTENERS_VALIDATOR);
7959            VALIDATORS.put(TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
7960                    TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES_VALIDATOR);
7961            VALIDATORS.put(TOUCH_EXPLORATION_ENABLED, TOUCH_EXPLORATION_ENABLED_VALIDATOR);
7962            VALIDATORS.put(ACCESSIBILITY_ENABLED, ACCESSIBILITY_ENABLED_VALIDATOR);
7963            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_TARGET_SERVICE,
7964                    ACCESSIBILITY_SHORTCUT_TARGET_SERVICE_VALIDATOR);
7965            VALIDATORS.put(ACCESSIBILITY_BUTTON_TARGET_COMPONENT,
7966                    ACCESSIBILITY_BUTTON_TARGET_COMPONENT_VALIDATOR);
7967            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN,
7968                    ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN_VALIDATOR);
7969            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_ENABLED,
7970                    ACCESSIBILITY_SHORTCUT_ENABLED_VALIDATOR);
7971            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN,
7972                    ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN_VALIDATOR);
7973            VALIDATORS.put(ACCESSIBILITY_SPEAK_PASSWORD, ACCESSIBILITY_SPEAK_PASSWORD_VALIDATOR);
7974            VALIDATORS.put(ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
7975                    ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED_VALIDATOR);
7976            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_PRESET,
7977                    ACCESSIBILITY_CAPTIONING_PRESET_VALIDATOR);
7978            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_ENABLED,
7979                    ACCESSIBILITY_CAPTIONING_ENABLED_VALIDATOR);
7980            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_LOCALE,
7981                    ACCESSIBILITY_CAPTIONING_LOCALE_VALIDATOR);
7982            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
7983                    ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR_VALIDATOR);
7984            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
7985                    ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR_VALIDATOR);
7986            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
7987                    ACCESSIBILITY_CAPTIONING_EDGE_TYPE_VALIDATOR);
7988            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
7989                    ACCESSIBILITY_CAPTIONING_EDGE_COLOR_VALIDATOR);
7990            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_TYPEFACE,
7991                    ACCESSIBILITY_CAPTIONING_TYPEFACE_VALIDATOR);
7992            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_FONT_SCALE,
7993                    ACCESSIBILITY_CAPTIONING_FONT_SCALE_VALIDATOR);
7994            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
7995                    ACCESSIBILITY_CAPTIONING_WINDOW_COLOR_VALIDATOR);
7996            VALIDATORS.put(TTS_DEFAULT_RATE, TTS_DEFAULT_RATE_VALIDATOR);
7997            VALIDATORS.put(TTS_DEFAULT_PITCH, TTS_DEFAULT_PITCH_VALIDATOR);
7998            VALIDATORS.put(TTS_DEFAULT_SYNTH, TTS_DEFAULT_SYNTH_VALIDATOR);
7999            VALIDATORS.put(TTS_ENABLED_PLUGINS, TTS_ENABLED_PLUGINS_VALIDATOR);
8000            VALIDATORS.put(TTS_DEFAULT_LOCALE, TTS_DEFAULT_LOCALE_VALIDATOR);
8001            VALIDATORS.put(SHOW_IME_WITH_HARD_KEYBOARD, SHOW_IME_WITH_HARD_KEYBOARD_VALIDATOR);
8002            VALIDATORS.put(WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
8003                    WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
8004            VALIDATORS.put(WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
8005                    WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR);
8006            VALIDATORS.put(WIFI_NUM_OPEN_NETWORKS_KEPT, WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR);
8007            VALIDATORS.put(SELECTED_SPELL_CHECKER, SELECTED_SPELL_CHECKER_VALIDATOR);
8008            VALIDATORS.put(SELECTED_SPELL_CHECKER_SUBTYPE,
8009                    SELECTED_SPELL_CHECKER_SUBTYPE_VALIDATOR);
8010            VALIDATORS.put(SPELL_CHECKER_ENABLED, SPELL_CHECKER_ENABLED_VALIDATOR);
8011            VALIDATORS.put(MOUNT_PLAY_NOTIFICATION_SND, MOUNT_PLAY_NOTIFICATION_SND_VALIDATOR);
8012            VALIDATORS.put(MOUNT_UMS_AUTOSTART, MOUNT_UMS_AUTOSTART_VALIDATOR);
8013            VALIDATORS.put(MOUNT_UMS_PROMPT, MOUNT_UMS_PROMPT_VALIDATOR);
8014            VALIDATORS.put(MOUNT_UMS_NOTIFY_ENABLED, MOUNT_UMS_NOTIFY_ENABLED_VALIDATOR);
8015            VALIDATORS.put(SLEEP_TIMEOUT, SLEEP_TIMEOUT_VALIDATOR);
8016            VALIDATORS.put(DOUBLE_TAP_TO_WAKE, DOUBLE_TAP_TO_WAKE_VALIDATOR);
8017            VALIDATORS.put(WAKE_GESTURE_ENABLED, WAKE_GESTURE_ENABLED_VALIDATOR);
8018            VALIDATORS.put(LONG_PRESS_TIMEOUT, LONG_PRESS_TIMEOUT_VALIDATOR);
8019            VALIDATORS.put(CAMERA_GESTURE_DISABLED, CAMERA_GESTURE_DISABLED_VALIDATOR);
8020            VALIDATORS.put(ACCESSIBILITY_AUTOCLICK_ENABLED,
8021                    ACCESSIBILITY_AUTOCLICK_ENABLED_VALIDATOR);
8022            VALIDATORS.put(ACCESSIBILITY_AUTOCLICK_DELAY, ACCESSIBILITY_AUTOCLICK_DELAY_VALIDATOR);
8023            VALIDATORS.put(ACCESSIBILITY_LARGE_POINTER_ICON,
8024                    ACCESSIBILITY_LARGE_POINTER_ICON_VALIDATOR);
8025            VALIDATORS.put(PREFERRED_TTY_MODE, PREFERRED_TTY_MODE_VALIDATOR);
8026            VALIDATORS.put(ENHANCED_VOICE_PRIVACY_ENABLED,
8027                    ENHANCED_VOICE_PRIVACY_ENABLED_VALIDATOR);
8028            VALIDATORS.put(TTY_MODE_ENABLED, TTY_MODE_ENABLED_VALIDATOR);
8029            VALIDATORS.put(RTT_CALLING_MODE, RTT_CALLING_MODE_VALIDATOR);
8030            VALIDATORS.put(INCALL_POWER_BUTTON_BEHAVIOR, INCALL_POWER_BUTTON_BEHAVIOR_VALIDATOR);
8031            VALIDATORS.put(NIGHT_DISPLAY_CUSTOM_START_TIME,
8032                    NIGHT_DISPLAY_CUSTOM_START_TIME_VALIDATOR);
8033            VALIDATORS.put(NIGHT_DISPLAY_CUSTOM_END_TIME, NIGHT_DISPLAY_CUSTOM_END_TIME_VALIDATOR);
8034            VALIDATORS.put(NIGHT_DISPLAY_COLOR_TEMPERATURE,
8035                    NIGHT_DISPLAY_COLOR_TEMPERATURE_VALIDATOR);
8036            VALIDATORS.put(NIGHT_DISPLAY_AUTO_MODE, NIGHT_DISPLAY_AUTO_MODE_VALIDATOR);
8037            VALIDATORS.put(SYNC_PARENT_SOUNDS, SYNC_PARENT_SOUNDS_VALIDATOR);
8038            VALIDATORS.put(CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED,
8039                    CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED_VALIDATOR);
8040            VALIDATORS.put(SWIPE_UP_TO_SWITCH_APPS_ENABLED,
8041                    SWIPE_UP_TO_SWITCH_APPS_ENABLED_VALIDATOR);
8042            VALIDATORS.put(CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED,
8043                    CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED_VALIDATOR);
8044            VALIDATORS.put(SYSTEM_NAVIGATION_KEYS_ENABLED,
8045                    SYSTEM_NAVIGATION_KEYS_ENABLED_VALIDATOR);
8046            VALIDATORS.put(QS_TILES, QS_TILES_VALIDATOR);
8047            VALIDATORS.put(DOZE_ENABLED, DOZE_ENABLED_VALIDATOR);
8048            VALIDATORS.put(DOZE_PULSE_ON_PICK_UP, DOZE_PULSE_ON_PICK_UP_VALIDATOR);
8049            VALIDATORS.put(DOZE_PULSE_ON_DOUBLE_TAP, DOZE_PULSE_ON_DOUBLE_TAP_VALIDATOR);
8050            VALIDATORS.put(NFC_PAYMENT_DEFAULT_COMPONENT, NFC_PAYMENT_DEFAULT_COMPONENT_VALIDATOR);
8051            VALIDATORS.put(AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN,
8052                    AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_VALIDATOR);
8053            VALIDATORS.put(ASSIST_GESTURE_ENABLED, ASSIST_GESTURE_ENABLED_VALIDATOR);
8054            VALIDATORS.put(ASSIST_GESTURE_SENSITIVITY, ASSIST_GESTURE_SENSITIVITY_VALIDATOR);
8055            VALIDATORS.put(ASSIST_GESTURE_SETUP_COMPLETE, ASSIST_GESTURE_SETUP_COMPLETE_VALIDATOR);
8056            VALIDATORS.put(ASSIST_GESTURE_SILENCE_ALERTS_ENABLED,
8057                    ASSIST_GESTURE_SILENCE_ALERTS_ENABLED_VALIDATOR);
8058            VALIDATORS.put(ASSIST_GESTURE_WAKE_ENABLED, ASSIST_GESTURE_WAKE_ENABLED_VALIDATOR);
8059            VALIDATORS.put(VR_DISPLAY_MODE, VR_DISPLAY_MODE_VALIDATOR);
8060            VALIDATORS.put(NOTIFICATION_BADGING, NOTIFICATION_BADGING_VALIDATOR);
8061            VALIDATORS.put(QS_AUTO_ADDED_TILES, QS_AUTO_ADDED_TILES_VALIDATOR);
8062            VALIDATORS.put(SCREENSAVER_ENABLED, SCREENSAVER_ENABLED_VALIDATOR);
8063            VALIDATORS.put(SCREENSAVER_COMPONENTS, SCREENSAVER_COMPONENTS_VALIDATOR);
8064            VALIDATORS.put(SCREENSAVER_ACTIVATE_ON_DOCK, SCREENSAVER_ACTIVATE_ON_DOCK_VALIDATOR);
8065            VALIDATORS.put(SCREENSAVER_ACTIVATE_ON_SLEEP, SCREENSAVER_ACTIVATE_ON_SLEEP_VALIDATOR);
8066            VALIDATORS.put(LOCKDOWN_IN_POWER_MENU, LOCKDOWN_IN_POWER_MENU_VALIDATOR);
8067            VALIDATORS.put(SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
8068                    SHOW_FIRST_CRASH_DIALOG_DEV_OPTION_VALIDATOR);
8069            VALIDATORS.put(VOLUME_HUSH_GESTURE, VOLUME_HUSH_GESTURE_VALIDATOR);
8070            VALIDATORS.put(ENABLED_NOTIFICATION_LISTENERS,
8071                    ENABLED_NOTIFICATION_LISTENERS_VALIDATOR); //legacy restore setting
8072            VALIDATORS.put(ENABLED_NOTIFICATION_ASSISTANT,
8073                    ENABLED_NOTIFICATION_ASSISTANT_VALIDATOR); //legacy restore setting
8074            VALIDATORS.put(ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES,
8075                    ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES_VALIDATOR); //legacy restore setting
8076        }
8077
8078        /**
8079         * Keys we no longer back up under the current schema, but want to continue to
8080         * process when restoring historical backup datasets.
8081         *
8082         * All settings in {@link LEGACY_RESTORE_SETTINGS} array *must* have a non-null validator,
8083         * otherwise they won't be restored.
8084         *
8085         * @hide
8086         */
8087        public static final String[] LEGACY_RESTORE_SETTINGS = {
8088                ENABLED_NOTIFICATION_LISTENERS,
8089                ENABLED_NOTIFICATION_ASSISTANT,
8090                ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES
8091        };
8092
8093        /**
8094         * These entries are considered common between the personal and the managed profile,
8095         * since the managed profile doesn't get to change them.
8096         */
8097        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
8098
8099        static {
8100            CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
8101            CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
8102            CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
8103            CLONE_TO_MANAGED_PROFILE.add(AUTOFILL_SERVICE);
8104            CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
8105            CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
8106            CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
8107            CLONE_TO_MANAGED_PROFILE.add(LOCATION_CHANGER);
8108            CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
8109            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
8110            CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
8111            if (TextServicesManager.DISABLE_PER_PROFILE_SPELL_CHECKER) {
8112                CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
8113                CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
8114            }
8115        }
8116
8117        /** @hide */
8118        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
8119            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
8120        }
8121
8122        /**
8123         * Secure settings which can be accessed by instant apps.
8124         * @hide
8125         */
8126        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
8127        static {
8128            INSTANT_APP_SETTINGS.add(ENABLED_ACCESSIBILITY_SERVICES);
8129            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_SPEAK_PASSWORD);
8130            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_INVERSION_ENABLED);
8131            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_ENABLED);
8132            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_PRESET);
8133            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_EDGE_TYPE);
8134            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_EDGE_COLOR);
8135            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_LOCALE);
8136            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR);
8137            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR);
8138            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_TYPEFACE);
8139            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_FONT_SCALE);
8140            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_WINDOW_COLOR);
8141            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
8142            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_DALTONIZER);
8143            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_AUTOCLICK_DELAY);
8144            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_AUTOCLICK_ENABLED);
8145            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_LARGE_POINTER_ICON);
8146
8147            INSTANT_APP_SETTINGS.add(DEFAULT_INPUT_METHOD);
8148            INSTANT_APP_SETTINGS.add(ENABLED_INPUT_METHODS);
8149
8150            INSTANT_APP_SETTINGS.add(ANDROID_ID);
8151
8152            INSTANT_APP_SETTINGS.add(PACKAGE_VERIFIER_USER_CONSENT);
8153            INSTANT_APP_SETTINGS.add(ALLOW_MOCK_LOCATION);
8154        }
8155
8156        /**
8157         * Helper method for determining if a location provider is enabled.
8158         *
8159         * @param cr the content resolver to use
8160         * @param provider the location provider to query
8161         * @return true if the provider is enabled
8162         *
8163         * @deprecated use {@link LocationManager#isProviderEnabled(String)}
8164         */
8165        @Deprecated
8166        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
8167            return isLocationProviderEnabledForUser(cr, provider, cr.getUserId());
8168        }
8169
8170        /**
8171         * Helper method for determining if a location provider is enabled.
8172         * @param cr the content resolver to use
8173         * @param provider the location provider to query
8174         * @param userId the userId to query
8175         * @return true if the provider is enabled
8176         *
8177         * @deprecated use {@link LocationManager#isProviderEnabled(String)}
8178         * @hide
8179         */
8180        @Deprecated
8181        public static final boolean isLocationProviderEnabledForUser(
8182                ContentResolver cr, String provider, int userId) {
8183            String allowedProviders = Settings.Secure.getStringForUser(cr,
8184                    LOCATION_PROVIDERS_ALLOWED, userId);
8185            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
8186        }
8187
8188        /**
8189         * Thread-safe method for enabling or disabling a single location provider.
8190         * @param cr the content resolver to use
8191         * @param provider the location provider to enable or disable
8192         * @param enabled true if the provider should be enabled
8193         * @deprecated This API is deprecated. It requires WRITE_SECURE_SETTINGS permission to
8194         *             change location settings.
8195         */
8196        @Deprecated
8197        public static final void setLocationProviderEnabled(ContentResolver cr,
8198                String provider, boolean enabled) {
8199            setLocationProviderEnabledForUser(cr, provider, enabled, cr.getUserId());
8200        }
8201
8202        /**
8203         * Thread-safe method for enabling or disabling a single location provider.
8204         *
8205         * @param cr the content resolver to use
8206         * @param provider the location provider to enable or disable
8207         * @param enabled true if the provider should be enabled
8208         * @param userId the userId for which to enable/disable providers
8209         * @return true if the value was set, false on database errors
8210         *
8211         * @deprecated use {@link LocationManager#setProviderEnabledForUser(String, boolean, int)}
8212         * @hide
8213         */
8214        @Deprecated
8215        public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
8216                String provider, boolean enabled, int userId) {
8217            synchronized (mLocationSettingsLock) {
8218                // to ensure thread safety, we write the provider name with a '+' or '-'
8219                // and let the SettingsProvider handle it rather than reading and modifying
8220                // the list of enabled providers.
8221                if (enabled) {
8222                    provider = "+" + provider;
8223                } else {
8224                    provider = "-" + provider;
8225                }
8226                return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
8227                        userId);
8228            }
8229        }
8230
8231        /**
8232         * Thread-safe method for setting the location mode to one of
8233         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
8234         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
8235         * Necessary because the mode is a composite of the underlying location provider
8236         * settings.
8237         *
8238         * @param cr the content resolver to use
8239         * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
8240         * @param userId the userId for which to change mode
8241         * @return true if the value was set, false on database errors
8242         *
8243         * @throws IllegalArgumentException if mode is not one of the supported values
8244         *
8245         * @deprecated To enable/disable location, use
8246         *             {@link LocationManager#setLocationEnabledForUser(boolean, int)}.
8247         *             To enable/disable a specific location provider, use
8248         *             {@link LocationManager#setProviderEnabledForUser(String, boolean, int)}.
8249         */
8250        @Deprecated
8251        private static boolean setLocationModeForUser(
8252                ContentResolver cr, int mode, int userId) {
8253            synchronized (mLocationSettingsLock) {
8254                boolean gps = false;
8255                boolean network = false;
8256                switch (mode) {
8257                    case LOCATION_MODE_OFF:
8258                        break;
8259                    case LOCATION_MODE_SENSORS_ONLY:
8260                        gps = true;
8261                        break;
8262                    case LOCATION_MODE_BATTERY_SAVING:
8263                        network = true;
8264                        break;
8265                    case LOCATION_MODE_HIGH_ACCURACY:
8266                        gps = true;
8267                        network = true;
8268                        break;
8269                    default:
8270                        throw new IllegalArgumentException("Invalid location mode: " + mode);
8271                }
8272
8273                boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
8274                        cr, LocationManager.NETWORK_PROVIDER, network, userId);
8275                boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
8276                        cr, LocationManager.GPS_PROVIDER, gps, userId);
8277                return gpsSuccess && nlpSuccess;
8278            }
8279        }
8280
8281        /**
8282         * Thread-safe method for reading the location mode, returns one of
8283         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
8284         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. Necessary
8285         * because the mode is a composite of the underlying location provider settings.
8286         *
8287         * @param cr the content resolver to use
8288         * @param userId the userId for which to read the mode
8289         * @return the location mode
8290         */
8291        private static final int getLocationModeForUser(ContentResolver cr, int userId) {
8292            synchronized (mLocationSettingsLock) {
8293                boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
8294                        cr, LocationManager.GPS_PROVIDER, userId);
8295                boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
8296                        cr, LocationManager.NETWORK_PROVIDER, userId);
8297                if (gpsEnabled && networkEnabled) {
8298                    return LOCATION_MODE_HIGH_ACCURACY;
8299                } else if (gpsEnabled) {
8300                    return LOCATION_MODE_SENSORS_ONLY;
8301                } else if (networkEnabled) {
8302                    return LOCATION_MODE_BATTERY_SAVING;
8303                } else {
8304                    return LOCATION_MODE_OFF;
8305                }
8306            }
8307        }
8308    }
8309
8310    /**
8311     * Global system settings, containing preferences that always apply identically
8312     * to all defined users.  Applications can read these but are not allowed to write;
8313     * like the "Secure" settings, these are for preferences that the user must
8314     * explicitly modify through the system UI or specialized APIs for those values.
8315     */
8316    public static final class Global extends NameValueTable {
8317        // NOTE: If you add new settings here, be sure to add them to
8318        // com.android.providers.settings.SettingsProtoDumpUtil#dumpProtoGlobalSettingsLocked.
8319
8320        /**
8321         * The content:// style URL for global secure settings items.  Not public.
8322         */
8323        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");
8324
8325        /**
8326         * Whether users are allowed to add more users or guest from lockscreen.
8327         * <p>
8328         * Type: int
8329         * @hide
8330         */
8331        public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";
8332
8333        /**
8334         * Setting whether the global gesture for enabling accessibility is enabled.
8335         * If this gesture is enabled the user will be able to perfrom it to enable
8336         * the accessibility state without visiting the settings app.
8337         *
8338         * @hide
8339         * No longer used. Should be removed once all dependencies have been updated.
8340         */
8341        public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
8342                "enable_accessibility_global_gesture_enabled";
8343
8344        /**
8345         * Whether Airplane Mode is on.
8346         */
8347        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
8348
8349        /**
8350         * Whether Theater Mode is on.
8351         * {@hide}
8352         */
8353        @SystemApi
8354        public static final String THEATER_MODE_ON = "theater_mode_on";
8355
8356        /**
8357         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
8358         */
8359        public static final String RADIO_BLUETOOTH = "bluetooth";
8360
8361        /**
8362         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
8363         */
8364        public static final String RADIO_WIFI = "wifi";
8365
8366        /**
8367         * {@hide}
8368         */
8369        public static final String RADIO_WIMAX = "wimax";
8370        /**
8371         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
8372         */
8373        public static final String RADIO_CELL = "cell";
8374
8375        /**
8376         * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
8377         */
8378        public static final String RADIO_NFC = "nfc";
8379
8380        /**
8381         * A comma separated list of radios that need to be disabled when airplane mode
8382         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
8383         * included in the comma separated list.
8384         */
8385        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
8386
8387        /**
8388         * A comma separated list of radios that should to be disabled when airplane mode
8389         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
8390         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
8391         * will be turned off when entering airplane mode, but the user will be able to reenable
8392         * Wifi in the Settings app.
8393         *
8394         * {@hide}
8395         */
8396        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
8397
8398        /**
8399         * An integer representing the Bluetooth Class of Device (CoD).
8400         *
8401         * @hide
8402         */
8403        public static final String BLUETOOTH_CLASS_OF_DEVICE = "bluetooth_class_of_device";
8404
8405        /**
8406         * A Long representing a bitmap of profiles that should be disabled when bluetooth starts.
8407         * See {@link android.bluetooth.BluetoothProfile}.
8408         * {@hide}
8409         */
8410        public static final String BLUETOOTH_DISABLED_PROFILES = "bluetooth_disabled_profiles";
8411
8412        /**
8413         * A semi-colon separated list of Bluetooth interoperability workarounds.
8414         * Each entry is a partial Bluetooth device address string and an integer representing
8415         * the feature to be disabled, separated by a comma. The integer must correspond
8416         * to a interoperability feature as defined in "interop.h" in /system/bt.
8417         * <p>
8418         * Example: <br/>
8419         *   "00:11:22,0;01:02:03:04,2"
8420         * @hide
8421         */
8422       public static final String BLUETOOTH_INTEROPERABILITY_LIST = "bluetooth_interoperability_list";
8423
8424        /**
8425         * The policy for deciding when Wi-Fi should go to sleep (which will in
8426         * turn switch to using the mobile data as an Internet connection).
8427         * <p>
8428         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
8429         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
8430         * {@link #WIFI_SLEEP_POLICY_NEVER}.
8431         */
8432        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
8433
8434        /**
8435         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
8436         * policy, which is to sleep shortly after the turning off
8437         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
8438         */
8439        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
8440
8441        /**
8442         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
8443         * the device is on battery, and never go to sleep when the device is
8444         * plugged in.
8445         */
8446        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
8447
8448        /**
8449         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
8450         */
8451        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
8452
8453        /**
8454         * Value to specify if the user prefers the date, time and time zone
8455         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
8456         */
8457        public static final String AUTO_TIME = "auto_time";
8458
8459        private static final Validator AUTO_TIME_VALIDATOR = BOOLEAN_VALIDATOR;
8460
8461        /**
8462         * Value to specify if the user prefers the time zone
8463         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
8464         */
8465        public static final String AUTO_TIME_ZONE = "auto_time_zone";
8466
8467        private static final Validator AUTO_TIME_ZONE_VALIDATOR = BOOLEAN_VALIDATOR;
8468
8469        /**
8470         * URI for the car dock "in" event sound.
8471         * @hide
8472         */
8473        public static final String CAR_DOCK_SOUND = "car_dock_sound";
8474
8475        /**
8476         * URI for the car dock "out" event sound.
8477         * @hide
8478         */
8479        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
8480
8481        /**
8482         * URI for the desk dock "in" event sound.
8483         * @hide
8484         */
8485        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
8486
8487        /**
8488         * URI for the desk dock "out" event sound.
8489         * @hide
8490         */
8491        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
8492
8493        /**
8494         * Whether to play a sound for dock events.
8495         * @hide
8496         */
8497        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
8498
8499        private static final Validator DOCK_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
8500
8501        /**
8502         * Whether to play a sound for dock events, only when an accessibility service is on.
8503         * @hide
8504         */
8505        public static final String DOCK_SOUNDS_ENABLED_WHEN_ACCESSIBILITY = "dock_sounds_enabled_when_accessbility";
8506
8507        /**
8508         * URI for the "device locked" (keyguard shown) sound.
8509         * @hide
8510         */
8511        public static final String LOCK_SOUND = "lock_sound";
8512
8513        /**
8514         * URI for the "device unlocked" sound.
8515         * @hide
8516         */
8517        public static final String UNLOCK_SOUND = "unlock_sound";
8518
8519        /**
8520         * URI for the "device is trusted" sound, which is played when the device enters the trusted
8521         * state without unlocking.
8522         * @hide
8523         */
8524        public static final String TRUSTED_SOUND = "trusted_sound";
8525
8526        /**
8527         * URI for the low battery sound file.
8528         * @hide
8529         */
8530        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
8531
8532        /**
8533         * Whether to play a sound for low-battery alerts.
8534         * @hide
8535         */
8536        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
8537
8538        private static final Validator POWER_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
8539
8540        /**
8541         * URI for the "wireless charging started" and "wired charging started" sound.
8542         * @hide
8543         */
8544        public static final String CHARGING_STARTED_SOUND =
8545                "wireless_charging_started_sound";
8546
8547        /**
8548         * Whether to play a sound for charging events.
8549         * @hide
8550         */
8551        public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";
8552
8553        private static final Validator CHARGING_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
8554
8555        /**
8556         * Whether we keep the device on while the device is plugged in.
8557         * Supported values are:
8558         * <ul>
8559         * <li>{@code 0} to never stay on while plugged in</li>
8560         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
8561         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
8562         * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
8563         * </ul>
8564         * These values can be OR-ed together.
8565         */
8566        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
8567
8568        private static final Validator STAY_ON_WHILE_PLUGGED_IN_VALIDATOR = new Validator() {
8569            @Override
8570            public boolean validate(String value) {
8571                try {
8572                    int val = Integer.parseInt(value);
8573                    return (val == 0)
8574                            || (val == BatteryManager.BATTERY_PLUGGED_AC)
8575                            || (val == BatteryManager.BATTERY_PLUGGED_USB)
8576                            || (val == BatteryManager.BATTERY_PLUGGED_WIRELESS)
8577                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
8578                                    | BatteryManager.BATTERY_PLUGGED_USB))
8579                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
8580                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
8581                            || (val == (BatteryManager.BATTERY_PLUGGED_USB
8582                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
8583                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
8584                                    | BatteryManager.BATTERY_PLUGGED_USB
8585                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS));
8586                } catch (NumberFormatException e) {
8587                    return false;
8588                }
8589            }
8590        };
8591
8592        /**
8593         * When the user has enable the option to have a "bug report" command
8594         * in the power menu.
8595         * @hide
8596         */
8597        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
8598
8599        private static final Validator BUGREPORT_IN_POWER_MENU_VALIDATOR = BOOLEAN_VALIDATOR;
8600
8601        /**
8602         * Whether ADB is enabled.
8603         */
8604        public static final String ADB_ENABLED = "adb_enabled";
8605
8606        /**
8607         * Whether Views are allowed to save their attribute data.
8608         * @hide
8609         */
8610        public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";
8611
8612        /**
8613         * Whether assisted GPS should be enabled or not.
8614         * @hide
8615         */
8616        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
8617
8618        /**
8619         * Whether bluetooth is enabled/disabled
8620         * 0=disabled. 1=enabled.
8621         */
8622        public static final String BLUETOOTH_ON = "bluetooth_on";
8623
8624        private static final Validator BLUETOOTH_ON_VALIDATOR = BOOLEAN_VALIDATOR;
8625
8626        /**
8627         * CDMA Cell Broadcast SMS
8628         *                            0 = CDMA Cell Broadcast SMS disabled
8629         *                            1 = CDMA Cell Broadcast SMS enabled
8630         * @hide
8631         */
8632        public static final String CDMA_CELL_BROADCAST_SMS =
8633                "cdma_cell_broadcast_sms";
8634
8635        /**
8636         * The CDMA roaming mode 0 = Home Networks, CDMA default
8637         *                       1 = Roaming on Affiliated networks
8638         *                       2 = Roaming on any networks
8639         * @hide
8640         */
8641        public static final String CDMA_ROAMING_MODE = "roaming_settings";
8642
8643        /**
8644         * The CDMA subscription mode 0 = RUIM/SIM (default)
8645         *                                1 = NV
8646         * @hide
8647         */
8648        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
8649
8650        /**
8651         * The default value for whether background data is enabled or not.
8652         *
8653         * Used by {@code NetworkPolicyManagerService}.
8654         *
8655         * @hide
8656         */
8657        public static final String DEFAULT_RESTRICT_BACKGROUND_DATA =
8658                "default_restrict_background_data";
8659
8660        /** Inactivity timeout to track mobile data activity.
8661        *
8662        * If set to a positive integer, it indicates the inactivity timeout value in seconds to
8663        * infer the data activity of mobile network. After a period of no activity on mobile
8664        * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
8665        * intent is fired to indicate a transition of network status from "active" to "idle". Any
8666        * subsequent activity on mobile networks triggers the firing of {@code
8667        * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
8668        *
8669        * Network activity refers to transmitting or receiving data on the network interfaces.
8670        *
8671        * Tracking is disabled if set to zero or negative value.
8672        *
8673        * @hide
8674        */
8675       public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";
8676
8677       /** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
8678        * but for Wifi network.
8679        * @hide
8680        */
8681       public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";
8682
8683       /**
8684        * Whether or not data roaming is enabled. (0 = false, 1 = true)
8685        */
8686       public static final String DATA_ROAMING = "data_roaming";
8687
8688       /**
8689        * The value passed to a Mobile DataConnection via bringUp which defines the
8690        * number of retries to preform when setting up the initial connection. The default
8691        * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
8692        * @hide
8693        */
8694       public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";
8695
8696       /**
8697        * Whether any package can be on external storage. When this is true, any
8698        * package, regardless of manifest values, is a candidate for installing
8699        * or moving onto external storage. (0 = false, 1 = true)
8700        * @hide
8701        */
8702       public static final String FORCE_ALLOW_ON_EXTERNAL = "force_allow_on_external";
8703
8704        /**
8705         * The default SM-DP+ configured for this device.
8706         *
8707         * <p>An SM-DP+ is used by an LPA (see {@link android.service.euicc.EuiccService}) to
8708         * download profiles. If this value is set, the LPA will query this server for any profiles
8709         * available to this device. If any are available, they may be downloaded during device
8710         * provisioning or in settings without needing the user to enter an activation code.
8711         *
8712         * @see android.service.euicc.EuiccService
8713         * @hide
8714         */
8715        @SystemApi
8716        public static final String DEFAULT_SM_DP_PLUS = "default_sm_dp_plus";
8717
8718        /**
8719         * Whether any profile has ever been downloaded onto a eUICC on the device.
8720         *
8721         * <p>Used to hide eUICC UI from users who have never made use of it and would only be
8722         * confused by seeing references to it in settings.
8723         * (0 = false, 1 = true)
8724         * @hide
8725         */
8726        @SystemApi
8727        public static final String EUICC_PROVISIONED = "euicc_provisioned";
8728
8729        /**
8730         * Whether any activity can be resized. When this is true, any
8731         * activity, regardless of manifest values, can be resized for multi-window.
8732         * (0 = false, 1 = true)
8733         * @hide
8734         */
8735        public static final String DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES
8736                = "force_resizable_activities";
8737
8738        /**
8739         * Whether to enable experimental freeform support for windows.
8740         * @hide
8741         */
8742        public static final String DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT
8743                = "enable_freeform_support";
8744
8745       /**
8746        * Whether user has enabled development settings.
8747        */
8748       public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";
8749
8750       /**
8751        * Whether the device has been provisioned (0 = false, 1 = true).
8752        * <p>On a multiuser device with a separate system user, the screen may be locked
8753        * as soon as this is set to true and further activities cannot be launched on the
8754        * system user unless they are marked to show over keyguard.
8755        */
8756       public static final String DEVICE_PROVISIONED = "device_provisioned";
8757
8758       /**
8759        * Whether mobile data should be allowed while the device is being provisioned.
8760        * This allows the provisioning process to turn off mobile data before the user
8761        * has an opportunity to set things up, preventing other processes from burning
8762        * precious bytes before wifi is setup.
8763        * (0 = false, 1 = true)
8764        * @hide
8765        */
8766       public static final String DEVICE_PROVISIONING_MOBILE_DATA_ENABLED =
8767               "device_provisioning_mobile_data";
8768
8769       /**
8770        * The saved value for WindowManagerService.setForcedDisplaySize().
8771        * Two integers separated by a comma.  If unset, then use the real display size.
8772        * @hide
8773        */
8774       public static final String DISPLAY_SIZE_FORCED = "display_size_forced";
8775
8776       /**
8777        * The saved value for WindowManagerService.setForcedDisplayScalingMode().
8778        * 0 or unset if scaling is automatic, 1 if scaling is disabled.
8779        * @hide
8780        */
8781       public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";
8782
8783       /**
8784        * The maximum size, in bytes, of a download that the download manager will transfer over
8785        * a non-wifi connection.
8786        * @hide
8787        */
8788       public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
8789               "download_manager_max_bytes_over_mobile";
8790
8791       /**
8792        * The recommended maximum size, in bytes, of a download that the download manager should
8793        * transfer over a non-wifi connection. Over this size, the use will be warned, but will
8794        * have the option to start the download over the mobile connection anyway.
8795        * @hide
8796        */
8797       public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
8798               "download_manager_recommended_max_bytes_over_mobile";
8799
8800       /**
8801        * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
8802        */
8803       @Deprecated
8804       public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
8805
8806       /**
8807        * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
8808        * sent or processed. (0 = false, 1 = true)
8809        * @hide
8810        */
8811       public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";
8812
8813       /**
8814        * Whether HDMI System Audio Control feature is enabled. If enabled, TV will try to turn on
8815        * system audio mode if there's a connected CEC-enabled AV Receiver. Then audio stream will
8816        * be played on AVR instead of TV spaeker. If disabled, the system audio mode will never be
8817        * activated.
8818        * @hide
8819        */
8820        public static final String HDMI_SYSTEM_AUDIO_CONTROL_ENABLED =
8821                "hdmi_system_audio_control_enabled";
8822
8823        /**
8824         * Whether TV will automatically turn on upon reception of the CEC command
8825         * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
8826         *
8827         * @hide
8828         */
8829        public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
8830                "hdmi_control_auto_wakeup_enabled";
8831
8832        /**
8833         * Whether TV will also turn off other CEC devices when it goes to standby mode.
8834         * (0 = false, 1 = true)
8835         *
8836         * @hide
8837         */
8838        public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
8839                "hdmi_control_auto_device_off_enabled";
8840
8841        /**
8842         * If <b>true</b>, enables out-of-the-box execution for priv apps.
8843         * Default: false
8844         * Values: 0 = false, 1 = true
8845         *
8846         * @hide
8847         */
8848        public static final String PRIV_APP_OOB_ENABLED = "priv_app_oob_enabled";
8849
8850        /**
8851         * The interval in milliseconds at which location requests will be throttled when they are
8852         * coming from the background.
8853         *
8854         * @hide
8855         */
8856        public static final String LOCATION_BACKGROUND_THROTTLE_INTERVAL_MS =
8857                "location_background_throttle_interval_ms";
8858
8859        /**
8860         * Most frequent location update interval in milliseconds that proximity alert is allowed
8861         * to request.
8862         * @hide
8863         */
8864        public static final String LOCATION_BACKGROUND_THROTTLE_PROXIMITY_ALERT_INTERVAL_MS =
8865                "location_background_throttle_proximity_alert_interval_ms";
8866
8867        /**
8868         * Packages that are whitelisted for background throttling (throttling will not be applied).
8869         * @hide
8870         */
8871        public static final String LOCATION_BACKGROUND_THROTTLE_PACKAGE_WHITELIST =
8872            "location_background_throttle_package_whitelist";
8873
8874        /**
8875        * Whether TV will switch to MHL port when a mobile device is plugged in.
8876        * (0 = false, 1 = true)
8877        * @hide
8878        */
8879       public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";
8880
8881       /**
8882        * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
8883        * @hide
8884        */
8885       public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";
8886
8887       /**
8888        * Whether mobile data connections are allowed by the user.  See
8889        * ConnectivityManager for more info.
8890        * @hide
8891        */
8892       public static final String MOBILE_DATA = "mobile_data";
8893
8894       /**
8895        * Whether the mobile data connection should remain active even when higher
8896        * priority networks like WiFi are active, to help make network switching faster.
8897        *
8898        * See ConnectivityService for more info.
8899        *
8900        * (0 = disabled, 1 = enabled)
8901        * @hide
8902        */
8903       public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
8904
8905        /**
8906         * Size of the event buffer for IP connectivity metrics.
8907         * @hide
8908         */
8909        public static final String CONNECTIVITY_METRICS_BUFFER_SIZE =
8910              "connectivity_metrics_buffer_size";
8911
8912       /** {@hide} */
8913       public static final String NETSTATS_ENABLED = "netstats_enabled";
8914       /** {@hide} */
8915       public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
8916       /** {@hide} */
8917       @Deprecated
8918       public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
8919       /** {@hide} */
8920       public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
8921       /** {@hide} */
8922       public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
8923       /** {@hide} */
8924       public static final String NETSTATS_AUGMENT_ENABLED = "netstats_augment_enabled";
8925
8926       /** {@hide} */
8927       public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
8928       /** {@hide} */
8929       public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
8930       /** {@hide} */
8931       public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
8932       /** {@hide} */
8933       public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";
8934
8935       /** {@hide} */
8936       public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
8937       /** {@hide} */
8938       public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
8939       /** {@hide} */
8940       public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
8941       /** {@hide} */
8942       public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";
8943
8944       /** {@hide} */
8945       public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
8946       /** {@hide} */
8947       public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
8948       /** {@hide} */
8949       public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
8950       /** {@hide} */
8951       public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";
8952
8953       /** {@hide} */
8954       public static final String NETPOLICY_QUOTA_ENABLED = "netpolicy_quota_enabled";
8955       /** {@hide} */
8956       public static final String NETPOLICY_QUOTA_UNLIMITED = "netpolicy_quota_unlimited";
8957       /** {@hide} */
8958       public static final String NETPOLICY_QUOTA_LIMITED = "netpolicy_quota_limited";
8959       /** {@hide} */
8960       public static final String NETPOLICY_QUOTA_FRAC_JOBS = "netpolicy_quota_frac_jobs";
8961       /** {@hide} */
8962       public static final String NETPOLICY_QUOTA_FRAC_MULTIPATH = "netpolicy_quota_frac_multipath";
8963
8964       /** {@hide} */
8965       public static final String NETPOLICY_OVERRIDE_ENABLED = "netpolicy_override_enabled";
8966
8967       /**
8968        * User preference for which network(s) should be used. Only the
8969        * connectivity service should touch this.
8970        */
8971       public static final String NETWORK_PREFERENCE = "network_preference";
8972
8973       /**
8974        * Which package name to use for network scoring. If null, or if the package is not a valid
8975        * scorer app, external network scores will neither be requested nor accepted.
8976        * @hide
8977        */
8978       public static final String NETWORK_SCORER_APP = "network_scorer_app";
8979
8980        /**
8981         * Whether night display forced auto mode is available.
8982         * 0 = unavailable, 1 = available.
8983         * @hide
8984         */
8985        public static final String NIGHT_DISPLAY_FORCED_AUTO_MODE_AVAILABLE =
8986                "night_display_forced_auto_mode_available";
8987
8988       /**
8989        * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
8990        * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
8991        * exceeded.
8992        * @hide
8993        */
8994       public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
8995
8996       /**
8997        * The length of time in milli-seconds that automatic small adjustments to
8998        * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
8999        * @hide
9000        */
9001       public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
9002
9003       /** Preferred NTP server. {@hide} */
9004       public static final String NTP_SERVER = "ntp_server";
9005       /** Timeout in milliseconds to wait for NTP server. {@hide} */
9006       public static final String NTP_TIMEOUT = "ntp_timeout";
9007
9008       /** {@hide} */
9009       public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";
9010
9011       /**
9012        * Sample validity in seconds to configure for the system DNS resolver.
9013        * {@hide}
9014        */
9015       public static final String DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS =
9016               "dns_resolver_sample_validity_seconds";
9017
9018       /**
9019        * Success threshold in percent for use with the system DNS resolver.
9020        * {@hide}
9021        */
9022       public static final String DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT =
9023                "dns_resolver_success_threshold_percent";
9024
9025       /**
9026        * Minimum number of samples needed for statistics to be considered meaningful in the
9027        * system DNS resolver.
9028        * {@hide}
9029        */
9030       public static final String DNS_RESOLVER_MIN_SAMPLES = "dns_resolver_min_samples";
9031
9032       /**
9033        * Maximum number taken into account for statistics purposes in the system DNS resolver.
9034        * {@hide}
9035        */
9036       public static final String DNS_RESOLVER_MAX_SAMPLES = "dns_resolver_max_samples";
9037
9038       /**
9039        * Whether to disable the automatic scheduling of system updates.
9040        * 1 = system updates won't be automatically scheduled (will always
9041        * present notification instead).
9042        * 0 = system updates will be automatically scheduled. (default)
9043        * @hide
9044        */
9045       @SystemApi
9046       public static final String OTA_DISABLE_AUTOMATIC_UPDATE = "ota_disable_automatic_update";
9047
9048       /**
9049        * Whether the package manager should send package verification broadcasts for verifiers to
9050        * review apps prior to installation.
9051        * 1 = request apps to be verified prior to installation, if a verifier exists.
9052        * 0 = do not verify apps before installation
9053        * @hide
9054        */
9055       public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";
9056
9057       /** Timeout for package verification.
9058        * @hide */
9059       public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";
9060
9061       /** Default response code for package verification.
9062        * @hide */
9063       public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";
9064
9065       /**
9066        * Show package verification setting in the Settings app.
9067        * 1 = show (default)
9068        * 0 = hide
9069        * @hide
9070        */
9071       public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";
9072
9073       /**
9074        * Run package verification on apps installed through ADB/ADT/USB
9075        * 1 = perform package verification on ADB installs (default)
9076        * 0 = bypass package verification on ADB installs
9077        * @hide
9078        */
9079       public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";
9080
9081       /**
9082        * Time since last fstrim (milliseconds) after which we force one to happen
9083        * during device startup.  If unset, the default is 3 days.
9084        * @hide
9085        */
9086       public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";
9087
9088       /**
9089        * The interval in milliseconds at which to check packet counts on the
9090        * mobile data interface when screen is on, to detect possible data
9091        * connection problems.
9092        * @hide
9093        */
9094       public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
9095               "pdp_watchdog_poll_interval_ms";
9096
9097       /**
9098        * The interval in milliseconds at which to check packet counts on the
9099        * mobile data interface when screen is off, to detect possible data
9100        * connection problems.
9101        * @hide
9102        */
9103       public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
9104               "pdp_watchdog_long_poll_interval_ms";
9105
9106       /**
9107        * The interval in milliseconds at which to check packet counts on the
9108        * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
9109        * outgoing packets has been reached without incoming packets.
9110        * @hide
9111        */
9112       public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
9113               "pdp_watchdog_error_poll_interval_ms";
9114
9115       /**
9116        * The number of outgoing packets sent without seeing an incoming packet
9117        * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
9118        * device is logged to the event log
9119        * @hide
9120        */
9121       public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
9122               "pdp_watchdog_trigger_packet_count";
9123
9124       /**
9125        * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
9126        * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
9127        * attempting data connection recovery.
9128        * @hide
9129        */
9130       public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
9131               "pdp_watchdog_error_poll_count";
9132
9133       /**
9134        * The number of failed PDP reset attempts before moving to something more
9135        * drastic: re-registering to the network.
9136        * @hide
9137        */
9138       public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
9139               "pdp_watchdog_max_pdp_reset_fail_count";
9140
9141       /**
9142        * URL to open browser on to allow user to manage a prepay account
9143        * @hide
9144        */
9145       public static final String SETUP_PREPAID_DATA_SERVICE_URL =
9146               "setup_prepaid_data_service_url";
9147
9148       /**
9149        * URL to attempt a GET on to see if this is a prepay device
9150        * @hide
9151        */
9152       public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
9153               "setup_prepaid_detection_target_url";
9154
9155       /**
9156        * Host to check for a redirect to after an attempt to GET
9157        * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
9158        * this is a prepaid device with zero balance.)
9159        * @hide
9160        */
9161       public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
9162               "setup_prepaid_detection_redir_host";
9163
9164       /**
9165        * The interval in milliseconds at which to check the number of SMS sent out without asking
9166        * for use permit, to limit the un-authorized SMS usage.
9167        *
9168        * @hide
9169        */
9170       public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
9171               "sms_outgoing_check_interval_ms";
9172
9173       /**
9174        * The number of outgoing SMS sent without asking for user permit (of {@link
9175        * #SMS_OUTGOING_CHECK_INTERVAL_MS}
9176        *
9177        * @hide
9178        */
9179       public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
9180               "sms_outgoing_check_max_count";
9181
9182       /**
9183        * Used to disable SMS short code confirmation - defaults to true.
9184        * True indcates we will do the check, etc.  Set to false to disable.
9185        * @see com.android.internal.telephony.SmsUsageMonitor
9186        * @hide
9187        */
9188       public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";
9189
9190        /**
9191         * Used to select which country we use to determine premium sms codes.
9192         * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
9193         * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
9194         * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
9195         * @hide
9196         */
9197        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";
9198
9199       /**
9200        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
9201        * @hide
9202        */
9203       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";
9204
9205       /**
9206        * Used to disable Tethering on a device - defaults to true
9207        * @hide
9208        */
9209       public static final String TETHER_SUPPORTED = "tether_supported";
9210
9211       /**
9212        * Used to require DUN APN on the device or not - defaults to a build config value
9213        * which defaults to false
9214        * @hide
9215        */
9216       public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
9217
9218       /**
9219        * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
9220        * corresponding build config values are set it will override the APN DB
9221        * values.
9222        * Consists of a comma seperated list of strings:
9223        * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
9224        * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
9225        * @hide
9226        */
9227       public static final String TETHER_DUN_APN = "tether_dun_apn";
9228
9229        /**
9230         * Used to disable trying to talk to any available tethering offload HAL.
9231         *
9232         * Integer values are interpreted as boolean, and the absence of an explicit setting
9233         * is interpreted as |false|.
9234         * @hide
9235         */
9236        public static final String TETHER_OFFLOAD_DISABLED = "tether_offload_disabled";
9237
9238        /**
9239         * List of certificate (hex string representation of the application's certificate - SHA-1
9240         * or SHA-256) and carrier app package pairs which are whitelisted to prompt the user for
9241         * install when a sim card with matching UICC carrier privilege rules is inserted.  The
9242         * certificate is used as a key, so the certificate encoding here must be the same as the
9243         * certificate encoding used on the SIM.
9244         *
9245         * The value is "cert1:package1;cert2:package2;..."
9246         * @hide
9247         */
9248        @SystemApi
9249        public static final String CARRIER_APP_WHITELIST = "carrier_app_whitelist";
9250
9251        /**
9252         * Map of package name to application names. The application names cannot and will not be
9253         * localized. App names may not contain colons or semicolons.
9254         *
9255         * The value is "packageName1:appName1;packageName2:appName2;..."
9256         * @hide
9257         */
9258        @SystemApi
9259        public static final String CARRIER_APP_NAMES = "carrier_app_names";
9260
9261       /**
9262        * USB Mass Storage Enabled
9263        */
9264       public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
9265
9266       private static final Validator USB_MASS_STORAGE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
9267
9268       /**
9269        * If this setting is set (to anything), then all references
9270        * to Gmail on the device must change to Google Mail.
9271        */
9272       public static final String USE_GOOGLE_MAIL = "use_google_mail";
9273
9274        /**
9275         * Webview Data reduction proxy key.
9276         * @hide
9277         */
9278        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
9279                "webview_data_reduction_proxy_key";
9280
9281       /**
9282        * Whether or not the WebView fallback mechanism should be enabled.
9283        * 0=disabled, 1=enabled.
9284        * @hide
9285        */
9286       public static final String WEBVIEW_FALLBACK_LOGIC_ENABLED =
9287               "webview_fallback_logic_enabled";
9288
9289       /**
9290        * Name of the package used as WebView provider (if unset the provider is instead determined
9291        * by the system).
9292        * @hide
9293        */
9294       public static final String WEBVIEW_PROVIDER = "webview_provider";
9295
9296       /**
9297        * Developer setting to enable WebView multiprocess rendering.
9298        * @hide
9299        */
9300       @SystemApi
9301       public static final String WEBVIEW_MULTIPROCESS = "webview_multiprocess";
9302
9303       /**
9304        * The maximum number of notifications shown in 24 hours when switching networks.
9305        * @hide
9306        */
9307       public static final String NETWORK_SWITCH_NOTIFICATION_DAILY_LIMIT =
9308              "network_switch_notification_daily_limit";
9309
9310       /**
9311        * The minimum time in milliseconds between notifications when switching networks.
9312        * @hide
9313        */
9314       public static final String NETWORK_SWITCH_NOTIFICATION_RATE_LIMIT_MILLIS =
9315              "network_switch_notification_rate_limit_millis";
9316
9317       /**
9318        * Whether to automatically switch away from wifi networks that lose Internet access.
9319        * Only meaningful if config_networkAvoidBadWifi is set to 0, otherwise the system always
9320        * avoids such networks. Valid values are:
9321        *
9322        * 0: Don't avoid bad wifi, don't prompt the user. Get stuck on bad wifi like it's 2013.
9323        * null: Ask the user whether to switch away from bad wifi.
9324        * 1: Avoid bad wifi.
9325        *
9326        * @hide
9327        */
9328       public static final String NETWORK_AVOID_BAD_WIFI = "network_avoid_bad_wifi";
9329
9330       /**
9331        * User setting for ConnectivityManager.getMeteredMultipathPreference(). This value may be
9332        * overridden by the system based on device or application state. If null, the value
9333        * specified by config_networkMeteredMultipathPreference is used.
9334        *
9335        * @hide
9336        */
9337       public static final String NETWORK_METERED_MULTIPATH_PREFERENCE =
9338               "network_metered_multipath_preference";
9339
9340        /**
9341         * Default daily multipath budget used by ConnectivityManager.getMultipathPreference()
9342         * on metered networks. This default quota is only used if quota could not be determined
9343         * from data plan or data limit/warning set by the user.
9344         * @hide
9345         */
9346        public static final String NETWORK_DEFAULT_DAILY_MULTIPATH_QUOTA_BYTES =
9347                "network_default_daily_multipath_quota_bytes";
9348
9349        /**
9350         * Network watchlist last report time.
9351         * @hide
9352         */
9353        public static final String NETWORK_WATCHLIST_LAST_REPORT_TIME =
9354                "network_watchlist_last_report_time";
9355
9356       /**
9357        * The thresholds of the wifi throughput badging (SD, HD etc.) as a comma-delimited list of
9358        * colon-delimited key-value pairs. The key is the badging enum value defined in
9359        * android.net.ScoredNetwork and the value is the minimum sustained network throughput in
9360        * kbps required for the badge. For example: "10:3000,20:5000,30:25000"
9361        *
9362        * @hide
9363        */
9364       @SystemApi
9365       public static final String WIFI_BADGING_THRESHOLDS = "wifi_badging_thresholds";
9366
9367       /**
9368        * Whether Wifi display is enabled/disabled
9369        * 0=disabled. 1=enabled.
9370        * @hide
9371        */
9372       public static final String WIFI_DISPLAY_ON = "wifi_display_on";
9373
9374       /**
9375        * Whether Wifi display certification mode is enabled/disabled
9376        * 0=disabled. 1=enabled.
9377        * @hide
9378        */
9379       public static final String WIFI_DISPLAY_CERTIFICATION_ON =
9380               "wifi_display_certification_on";
9381
9382       /**
9383        * WPS Configuration method used by Wifi display, this setting only
9384        * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
9385        *
9386        * Possible values are:
9387        *
9388        * WpsInfo.INVALID: use default WPS method chosen by framework
9389        * WpsInfo.PBC    : use Push button
9390        * WpsInfo.KEYPAD : use Keypad
9391        * WpsInfo.DISPLAY: use Display
9392        * @hide
9393        */
9394       public static final String WIFI_DISPLAY_WPS_CONFIG =
9395           "wifi_display_wps_config";
9396
9397       /**
9398        * Whether to notify the user of open networks.
9399        * <p>
9400        * If not connected and the scan results have an open network, we will
9401        * put this notification up. If we attempt to connect to a network or
9402        * the open network(s) disappear, we remove the notification. When we
9403        * show the notification, we will not show it again for
9404        * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
9405        *
9406        * @deprecated This feature is no longer controlled by this setting in
9407        * {@link android.os.Build.VERSION_CODES#O}.
9408        */
9409       @Deprecated
9410       public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
9411               "wifi_networks_available_notification_on";
9412
9413       private static final Validator WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
9414               BOOLEAN_VALIDATOR;
9415
9416       /**
9417        * Whether to notify the user of carrier networks.
9418        * <p>
9419        * If not connected and the scan results have a carrier network, we will
9420        * put this notification up. If we attempt to connect to a network or
9421        * the carrier network(s) disappear, we remove the notification. When we
9422        * show the notification, we will not show it again for
9423        * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
9424        * @hide
9425        */
9426       public static final String WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON =
9427               "wifi_carrier_networks_available_notification_on";
9428
9429       private static final Validator WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
9430               BOOLEAN_VALIDATOR;
9431
9432       /**
9433        * {@hide}
9434        */
9435       public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
9436               "wimax_networks_available_notification_on";
9437
9438       /**
9439        * Delay (in seconds) before repeating the Wi-Fi networks available notification.
9440        * Connecting to a network will reset the timer.
9441        */
9442       public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
9443               "wifi_networks_available_repeat_delay";
9444
9445       private static final Validator WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR =
9446               NON_NEGATIVE_INTEGER_VALIDATOR;
9447
9448       /**
9449        * 802.11 country code in ISO 3166 format
9450        * @hide
9451        */
9452       public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
9453
9454       /**
9455        * The interval in milliseconds to issue wake up scans when wifi needs
9456        * to connect. This is necessary to connect to an access point when
9457        * device is on the move and the screen is off.
9458        * @hide
9459        */
9460       public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
9461               "wifi_framework_scan_interval_ms";
9462
9463       /**
9464        * The interval in milliseconds after which Wi-Fi is considered idle.
9465        * When idle, it is possible for the device to be switched from Wi-Fi to
9466        * the mobile data network.
9467        * @hide
9468        */
9469       public static final String WIFI_IDLE_MS = "wifi_idle_ms";
9470
9471       /**
9472        * When the number of open networks exceeds this number, the
9473        * least-recently-used excess networks will be removed.
9474        */
9475       public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
9476
9477       private static final Validator WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR =
9478               NON_NEGATIVE_INTEGER_VALIDATOR;
9479
9480       /**
9481        * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
9482        */
9483       public static final String WIFI_ON = "wifi_on";
9484
9485       /**
9486        * Setting to allow scans to be enabled even wifi is turned off for connectivity.
9487        * @hide
9488        */
9489       public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
9490                "wifi_scan_always_enabled";
9491
9492        /**
9493         * Whether soft AP will shut down after a timeout period when no devices are connected.
9494         *
9495         * Type: int (0 for false, 1 for true)
9496         * @hide
9497         */
9498        public static final String SOFT_AP_TIMEOUT_ENABLED = "soft_ap_timeout_enabled";
9499
9500        private static final Validator SOFT_AP_TIMEOUT_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
9501
9502        /**
9503         * Value to specify if Wi-Fi Wakeup feature is enabled.
9504         *
9505         * Type: int (0 for false, 1 for true)
9506         * @hide
9507         */
9508        @SystemApi
9509        public static final String WIFI_WAKEUP_ENABLED = "wifi_wakeup_enabled";
9510
9511        private static final Validator WIFI_WAKEUP_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
9512
9513        /**
9514         * Value to specify whether network quality scores and badging should be shown in the UI.
9515         *
9516         * Type: int (0 for false, 1 for true)
9517         * @hide
9518         */
9519        public static final String NETWORK_SCORING_UI_ENABLED = "network_scoring_ui_enabled";
9520
9521        /**
9522         * Value to specify how long in milliseconds to retain seen score cache curves to be used
9523         * when generating SSID only bases score curves.
9524         *
9525         * Type: long
9526         * @hide
9527         */
9528        public static final String SPEED_LABEL_CACHE_EVICTION_AGE_MILLIS =
9529                "speed_label_cache_eviction_age_millis";
9530
9531        /**
9532         * Value to specify if network recommendations from
9533         * {@link com.android.server.NetworkScoreService} are enabled.
9534         *
9535         * Type: int
9536         * Valid values:
9537         *   -1 = Forced off
9538         *    0 = Disabled
9539         *    1 = Enabled
9540         *
9541         * Most readers of this setting should simply check if value == 1 to determined the
9542         * enabled state.
9543         * @hide
9544         */
9545        public static final String NETWORK_RECOMMENDATIONS_ENABLED =
9546                "network_recommendations_enabled";
9547
9548        private static final Validator NETWORK_RECOMMENDATIONS_ENABLED_VALIDATOR =
9549                new SettingsValidators.DiscreteValueValidator(new String[] {"-1", "0", "1"});
9550
9551        /**
9552         * Which package name to use for network recommendations. If null, network recommendations
9553         * will neither be requested nor accepted.
9554         *
9555         * Use {@link NetworkScoreManager#getActiveScorerPackage()} to read this value and
9556         * {@link NetworkScoreManager#setActiveScorer(String)} to write it.
9557         *
9558         * Type: string - package name
9559         * @hide
9560         */
9561        public static final String NETWORK_RECOMMENDATIONS_PACKAGE =
9562                "network_recommendations_package";
9563
9564        /**
9565         * The package name of the application that connect and secures high quality open wifi
9566         * networks automatically.
9567         *
9568         * Type: string package name or null if the feature is either not provided or disabled.
9569         * @hide
9570         */
9571        @TestApi
9572        public static final String USE_OPEN_WIFI_PACKAGE = "use_open_wifi_package";
9573
9574        private static final Validator USE_OPEN_WIFI_PACKAGE_VALIDATOR = new Validator() {
9575            @Override
9576            public boolean validate(String value) {
9577                return (value == null) || PACKAGE_NAME_VALIDATOR.validate(value);
9578            }
9579        };
9580
9581        /**
9582         * The number of milliseconds the {@link com.android.server.NetworkScoreService}
9583         * will give a recommendation request to complete before returning a default response.
9584         *
9585         * Type: long
9586         * @hide
9587         * @deprecated to be removed
9588         */
9589        public static final String NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS =
9590                "network_recommendation_request_timeout_ms";
9591
9592        /**
9593         * The expiration time in milliseconds for the {@link android.net.WifiKey} request cache in
9594         * {@link com.android.server.wifi.RecommendedNetworkEvaluator}.
9595         *
9596         * Type: long
9597         * @hide
9598         */
9599        public static final String RECOMMENDED_NETWORK_EVALUATOR_CACHE_EXPIRY_MS =
9600                "recommended_network_evaluator_cache_expiry_ms";
9601
9602        /**
9603        * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
9604        * connectivity.
9605        * @hide
9606        */
9607        public static final String BLE_SCAN_ALWAYS_AVAILABLE = "ble_scan_always_enabled";
9608
9609        /**
9610         * The length in milliseconds of a BLE scan window in a low-power scan mode.
9611         * @hide
9612         */
9613        public static final String BLE_SCAN_LOW_POWER_WINDOW_MS = "ble_scan_low_power_window_ms";
9614
9615        /**
9616         * The length in milliseconds of a BLE scan window in a balanced scan mode.
9617         * @hide
9618         */
9619        public static final String BLE_SCAN_BALANCED_WINDOW_MS = "ble_scan_balanced_window_ms";
9620
9621        /**
9622         * The length in milliseconds of a BLE scan window in a low-latency scan mode.
9623         * @hide
9624         */
9625        public static final String BLE_SCAN_LOW_LATENCY_WINDOW_MS =
9626                "ble_scan_low_latency_window_ms";
9627
9628        /**
9629         * The length in milliseconds of a BLE scan interval in a low-power scan mode.
9630         * @hide
9631         */
9632        public static final String BLE_SCAN_LOW_POWER_INTERVAL_MS =
9633                "ble_scan_low_power_interval_ms";
9634
9635        /**
9636         * The length in milliseconds of a BLE scan interval in a balanced scan mode.
9637         * @hide
9638         */
9639        public static final String BLE_SCAN_BALANCED_INTERVAL_MS =
9640                "ble_scan_balanced_interval_ms";
9641
9642        /**
9643         * The length in milliseconds of a BLE scan interval in a low-latency scan mode.
9644         * @hide
9645         */
9646        public static final String BLE_SCAN_LOW_LATENCY_INTERVAL_MS =
9647                "ble_scan_low_latency_interval_ms";
9648
9649        /**
9650         * The mode that BLE scanning clients will be moved to when in the background.
9651         * @hide
9652         */
9653        public static final String BLE_SCAN_BACKGROUND_MODE = "ble_scan_background_mode";
9654
9655       /**
9656        * Used to save the Wifi_ON state prior to tethering.
9657        * This state will be checked to restore Wifi after
9658        * the user turns off tethering.
9659        *
9660        * @hide
9661        */
9662       public static final String WIFI_SAVED_STATE = "wifi_saved_state";
9663
9664       /**
9665        * The interval in milliseconds to scan as used by the wifi supplicant
9666        * @hide
9667        */
9668       public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
9669               "wifi_supplicant_scan_interval_ms";
9670
9671        /**
9672         * whether frameworks handles wifi auto-join
9673         * @hide
9674         */
9675       public static final String WIFI_ENHANCED_AUTO_JOIN =
9676                "wifi_enhanced_auto_join";
9677
9678        /**
9679         * whether settings show RSSI
9680         * @hide
9681         */
9682        public static final String WIFI_NETWORK_SHOW_RSSI =
9683                "wifi_network_show_rssi";
9684
9685        /**
9686        * The interval in milliseconds to scan at supplicant when p2p is connected
9687        * @hide
9688        */
9689       public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
9690               "wifi_scan_interval_p2p_connected_ms";
9691
9692       /**
9693        * Whether the Wi-Fi watchdog is enabled.
9694        */
9695       public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
9696
9697       /**
9698        * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
9699        * the setting needs to be set to 0 to disable it.
9700        * @hide
9701        */
9702       public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
9703               "wifi_watchdog_poor_network_test_enabled";
9704
9705       private static final Validator WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED_VALIDATOR =
9706               ANY_STRING_VALIDATOR;
9707
9708       /**
9709        * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
9710        * needs to be set to 0 to disable it.
9711        * @hide
9712        */
9713       public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
9714               "wifi_suspend_optimizations_enabled";
9715
9716       /**
9717        * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
9718        * will enable it. In the future, additional values may be supported.
9719        * @hide
9720        */
9721       public static final String WIFI_VERBOSE_LOGGING_ENABLED =
9722               "wifi_verbose_logging_enabled";
9723
9724        /**
9725         * Setting to enable connected MAC randomization in Wi-Fi; disabled by default, and
9726         * setting to 1 will enable it. In the future, additional values may be supported.
9727         * @hide
9728         */
9729        public static final String WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED =
9730                "wifi_connected_mac_randomization_enabled";
9731
9732        /**
9733         * Parameters to adjust the performance of framework wifi scoring methods.
9734         * <p>
9735         * Encoded as a comma-separated key=value list, for example:
9736         *   "rssi5=-80:-77:-70:-57,rssi2=-83:-80:-73:-60,horizon=15"
9737         * This is intended for experimenting with new parameter values,
9738         * and is normally unset or empty. The example does not include all
9739         * parameters that may be honored.
9740         * Default values are provided by code or device configurations.
9741         * Errors in the parameters will cause the entire setting to be ignored.
9742         * @hide
9743         */
9744        public static final String WIFI_SCORE_PARAMS =
9745                "wifi_score_params";
9746
9747       /**
9748        * The maximum number of times we will retry a connection to an access
9749        * point for which we have failed in acquiring an IP address from DHCP.
9750        * A value of N means that we will make N+1 connection attempts in all.
9751        */
9752       public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
9753
9754       /**
9755        * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
9756        * data connectivity to be established after a disconnect from Wi-Fi.
9757        */
9758       public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
9759           "wifi_mobile_data_transition_wakelock_timeout_ms";
9760
9761       /**
9762        * This setting controls whether WiFi configurations created by a Device Owner app
9763        * should be locked down (that is, be editable or removable only by the Device Owner App,
9764        * not even by Settings app).
9765        * This setting takes integer values. Non-zero values mean DO created configurations
9766        * are locked down. Value of zero means they are not. Default value in the absence of
9767        * actual value to this setting is 0.
9768        */
9769       public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
9770               "wifi_device_owner_configs_lockdown";
9771
9772       /**
9773        * The operational wifi frequency band
9774        * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
9775        * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
9776        * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
9777        *
9778        * @hide
9779        */
9780       public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
9781
9782       /**
9783        * The Wi-Fi peer-to-peer device name
9784        * @hide
9785        */
9786       public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";
9787
9788       /**
9789        * The min time between wifi disable and wifi enable
9790        * @hide
9791        */
9792       public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";
9793
9794       /**
9795        * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
9796        * from an ephemeral network if there is no BSSID for that network with a non-null score that
9797        * has been seen in this time period.
9798        *
9799        * If this is less than or equal to zero, we use a more conservative behavior and only check
9800        * for a non-null score from the currently connected or target BSSID.
9801        * @hide
9802        */
9803       public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
9804               "wifi_ephemeral_out_of_range_timeout_ms";
9805
9806       /**
9807        * The number of milliseconds to delay when checking for data stalls during
9808        * non-aggressive detection. (screen is turned off.)
9809        * @hide
9810        */
9811       public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
9812               "data_stall_alarm_non_aggressive_delay_in_ms";
9813
9814       /**
9815        * The number of milliseconds to delay when checking for data stalls during
9816        * aggressive detection. (screen on or suspected data stall)
9817        * @hide
9818        */
9819       public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
9820               "data_stall_alarm_aggressive_delay_in_ms";
9821
9822       /**
9823        * The number of milliseconds to allow the provisioning apn to remain active
9824        * @hide
9825        */
9826       public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
9827               "provisioning_apn_alarm_delay_in_ms";
9828
9829       /**
9830        * The interval in milliseconds at which to check gprs registration
9831        * after the first registration mismatch of gprs and voice service,
9832        * to detect possible data network registration problems.
9833        *
9834        * @hide
9835        */
9836       public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
9837               "gprs_register_check_period_ms";
9838
9839       /**
9840        * Nonzero causes Log.wtf() to crash.
9841        * @hide
9842        */
9843       public static final String WTF_IS_FATAL = "wtf_is_fatal";
9844
9845       /**
9846        * Ringer mode. This is used internally, changing this value will not
9847        * change the ringer mode. See AudioManager.
9848        */
9849       public static final String MODE_RINGER = "mode_ringer";
9850
9851       /**
9852        * Overlay display devices setting.
9853        * The associated value is a specially formatted string that describes the
9854        * size and density of simulated secondary display devices.
9855        * <p>
9856        * Format: {width}x{height}/{dpi};...
9857        * </p><p>
9858        * Example:
9859        * <ul>
9860        * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
9861        * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
9862        * at 1080p and the second at 720p.</li>
9863        * <li>If the value is empty, then no overlay display devices are created.</li>
9864        * </ul></p>
9865        *
9866        * @hide
9867        */
9868       public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";
9869
9870        /**
9871         * Threshold values for the duration and level of a discharge cycle,
9872         * under which we log discharge cycle info.
9873         *
9874         * @hide
9875         */
9876        public static final String
9877                BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";
9878
9879        /** @hide */
9880        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
9881
9882        /**
9883         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
9884         * intents on application crashes and ANRs. If this is disabled, the
9885         * crash/ANR dialog will never display the "Report" button.
9886         * <p>
9887         * Type: int (0 = disallow, 1 = allow)
9888         *
9889         * @hide
9890         */
9891        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
9892
9893        /**
9894         * Maximum age of entries kept by {@link DropBoxManager}.
9895         *
9896         * @hide
9897         */
9898        public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";
9899
9900        /**
9901         * Maximum number of entry files which {@link DropBoxManager} will keep
9902         * around.
9903         *
9904         * @hide
9905         */
9906        public static final String DROPBOX_MAX_FILES = "dropbox_max_files";
9907
9908        /**
9909         * Maximum amount of disk space used by {@link DropBoxManager} no matter
9910         * what.
9911         *
9912         * @hide
9913         */
9914        public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";
9915
9916        /**
9917         * Percent of free disk (excluding reserve) which {@link DropBoxManager}
9918         * will use.
9919         *
9920         * @hide
9921         */
9922        public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";
9923
9924        /**
9925         * Percent of total disk which {@link DropBoxManager} will never dip
9926         * into.
9927         *
9928         * @hide
9929         */
9930        public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";
9931
9932        /**
9933         * Prefix for per-tag dropbox disable/enable settings.
9934         *
9935         * @hide
9936         */
9937        public static final String DROPBOX_TAG_PREFIX = "dropbox:";
9938
9939        /**
9940         * Lines of logcat to include with system crash/ANR/etc. reports, as a
9941         * prefix of the dropbox tag of the report type. For example,
9942         * "logcat_for_system_server_anr" controls the lines of logcat captured
9943         * with system server ANR reports. 0 to disable.
9944         *
9945         * @hide
9946         */
9947        public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";
9948
9949        /**
9950         * The interval in minutes after which the amount of free storage left
9951         * on the device is logged to the event log
9952         *
9953         * @hide
9954         */
9955        public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";
9956
9957        /**
9958         * Threshold for the amount of change in disk free space required to
9959         * report the amount of free space. Used to prevent spamming the logs
9960         * when the disk free space isn't changing frequently.
9961         *
9962         * @hide
9963         */
9964        public static final String
9965                DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";
9966
9967        /**
9968         * Minimum percentage of free storage on the device that is used to
9969         * determine if the device is running low on storage. The default is 10.
9970         * <p>
9971         * Say this value is set to 10, the device is considered running low on
9972         * storage if 90% or more of the device storage is filled up.
9973         *
9974         * @hide
9975         */
9976        public static final String
9977                SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";
9978
9979        /**
9980         * Maximum byte size of the low storage threshold. This is to ensure
9981         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
9982         * overly large threshold for large storage devices. Currently this must
9983         * be less than 2GB. This default is 500MB.
9984         *
9985         * @hide
9986         */
9987        public static final String
9988                SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";
9989
9990        /**
9991         * Minimum bytes of free storage on the device before the data partition
9992         * is considered full. By default, 1 MB is reserved to avoid system-wide
9993         * SQLite disk full exceptions.
9994         *
9995         * @hide
9996         */
9997        public static final String
9998                SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";
9999
10000        /**
10001         * Minimum percentage of storage on the device that is reserved for
10002         * cached data.
10003         *
10004         * @hide
10005         */
10006        public static final String
10007                SYS_STORAGE_CACHE_PERCENTAGE = "sys_storage_cache_percentage";
10008
10009        /**
10010         * Maximum bytes of storage on the device that is reserved for cached
10011         * data.
10012         *
10013         * @hide
10014         */
10015        public static final String
10016                SYS_STORAGE_CACHE_MAX_BYTES = "sys_storage_cache_max_bytes";
10017
10018        /**
10019         * The maximum reconnect delay for short network outages or when the
10020         * network is suspended due to phone use.
10021         *
10022         * @hide
10023         */
10024        public static final String
10025                SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";
10026
10027        /**
10028         * The number of milliseconds to delay before sending out
10029         * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
10030         *
10031         * @hide
10032         */
10033        public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";
10034
10035
10036        /**
10037         * Network sampling interval, in seconds. We'll generate link information
10038         * about bytes/packets sent and error rates based on data sampled in this interval
10039         *
10040         * @hide
10041         */
10042
10043        public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
10044                "connectivity_sampling_interval_in_seconds";
10045
10046        /**
10047         * The series of successively longer delays used in retrying to download PAC file.
10048         * Last delay is used between successful PAC downloads.
10049         *
10050         * @hide
10051         */
10052        public static final String PAC_CHANGE_DELAY = "pac_change_delay";
10053
10054        /**
10055         * Don't attempt to detect captive portals.
10056         *
10057         * @hide
10058         */
10059        public static final int CAPTIVE_PORTAL_MODE_IGNORE = 0;
10060
10061        /**
10062         * When detecting a captive portal, display a notification that
10063         * prompts the user to sign in.
10064         *
10065         * @hide
10066         */
10067        public static final int CAPTIVE_PORTAL_MODE_PROMPT = 1;
10068
10069        /**
10070         * When detecting a captive portal, immediately disconnect from the
10071         * network and do not reconnect to that network in the future.
10072         *
10073         * @hide
10074         */
10075        public static final int CAPTIVE_PORTAL_MODE_AVOID = 2;
10076
10077        /**
10078         * What to do when connecting a network that presents a captive portal.
10079         * Must be one of the CAPTIVE_PORTAL_MODE_* constants above.
10080         *
10081         * The default for this setting is CAPTIVE_PORTAL_MODE_PROMPT.
10082         * @hide
10083         */
10084        public static final String CAPTIVE_PORTAL_MODE = "captive_portal_mode";
10085
10086        /**
10087         * Setting to turn off captive portal detection. Feature is enabled by
10088         * default and the setting needs to be set to 0 to disable it.
10089         *
10090         * @deprecated use CAPTIVE_PORTAL_MODE_IGNORE to disable captive portal detection
10091         * @hide
10092         */
10093        @Deprecated
10094        public static final String
10095                CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";
10096
10097        /**
10098         * The server used for captive portal detection upon a new conection. A
10099         * 204 response code from the server is used for validation.
10100         * TODO: remove this deprecated symbol.
10101         *
10102         * @hide
10103         */
10104        public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";
10105
10106        /**
10107         * The URL used for HTTPS captive portal detection upon a new connection.
10108         * A 204 response code from the server is used for validation.
10109         *
10110         * @hide
10111         */
10112        public static final String CAPTIVE_PORTAL_HTTPS_URL = "captive_portal_https_url";
10113
10114        /**
10115         * The URL used for HTTP captive portal detection upon a new connection.
10116         * A 204 response code from the server is used for validation.
10117         *
10118         * @hide
10119         */
10120        public static final String CAPTIVE_PORTAL_HTTP_URL = "captive_portal_http_url";
10121
10122        /**
10123         * The URL used for fallback HTTP captive portal detection when previous HTTP
10124         * and HTTPS captive portal detection attemps did not return a conclusive answer.
10125         *
10126         * @hide
10127         */
10128        public static final String CAPTIVE_PORTAL_FALLBACK_URL = "captive_portal_fallback_url";
10129
10130        /**
10131         * A comma separated list of URLs used for captive portal detection in addition to the
10132         * fallback HTTP url associated with the CAPTIVE_PORTAL_FALLBACK_URL settings.
10133         *
10134         * @hide
10135         */
10136        public static final String CAPTIVE_PORTAL_OTHER_FALLBACK_URLS =
10137                "captive_portal_other_fallback_urls";
10138
10139        /**
10140         * Whether to use HTTPS for network validation. This is enabled by default and the setting
10141         * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
10142         * don't actually use HTTPS, but it's consistent with the other settings.
10143         *
10144         * @hide
10145         */
10146        public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";
10147
10148        /**
10149         * Which User-Agent string to use in the header of the captive portal detection probes.
10150         * The User-Agent field is unset when this setting has no value (HttpUrlConnection default).
10151         *
10152         * @hide
10153         */
10154        public static final String CAPTIVE_PORTAL_USER_AGENT = "captive_portal_user_agent";
10155
10156        /**
10157         * Whether network service discovery is enabled.
10158         *
10159         * @hide
10160         */
10161        public static final String NSD_ON = "nsd_on";
10162
10163        /**
10164         * Let user pick default install location.
10165         *
10166         * @hide
10167         */
10168        public static final String SET_INSTALL_LOCATION = "set_install_location";
10169
10170        /**
10171         * Default install location value.
10172         * 0 = auto, let system decide
10173         * 1 = internal
10174         * 2 = sdcard
10175         * @hide
10176         */
10177        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
10178
10179        /**
10180         * ms during which to consume extra events related to Inet connection
10181         * condition after a transtion to fully-connected
10182         *
10183         * @hide
10184         */
10185        public static final String
10186                INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";
10187
10188        /**
10189         * ms during which to consume extra events related to Inet connection
10190         * condtion after a transtion to partly-connected
10191         *
10192         * @hide
10193         */
10194        public static final String
10195                INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";
10196
10197        /** {@hide} */
10198        public static final String
10199                READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";
10200
10201        /**
10202         * Host name and port for global http proxy. Uses ':' seperator for
10203         * between host and port.
10204         */
10205        public static final String HTTP_PROXY = "http_proxy";
10206
10207        /**
10208         * Host name for global http proxy. Set via ConnectivityManager.
10209         *
10210         * @hide
10211         */
10212        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
10213
10214        /**
10215         * Integer host port for global http proxy. Set via ConnectivityManager.
10216         *
10217         * @hide
10218         */
10219        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
10220
10221        /**
10222         * Exclusion list for global proxy. This string contains a list of
10223         * comma-separated domains where the global proxy does not apply.
10224         * Domains should be listed in a comma- separated list. Example of
10225         * acceptable formats: ".domain1.com,my.domain2.com" Use
10226         * ConnectivityManager to set/get.
10227         *
10228         * @hide
10229         */
10230        public static final String
10231                GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";
10232
10233        /**
10234         * The location PAC File for the proxy.
10235         * @hide
10236         */
10237        public static final String
10238                GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";
10239
10240        /**
10241         * Enables the UI setting to allow the user to specify the global HTTP
10242         * proxy and associated exclusion list.
10243         *
10244         * @hide
10245         */
10246        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
10247
10248        /**
10249         * Setting for default DNS in case nobody suggests one
10250         *
10251         * @hide
10252         */
10253        public static final String DEFAULT_DNS_SERVER = "default_dns_server";
10254
10255        /**
10256         * The requested Private DNS mode (string), and an accompanying specifier (string).
10257         *
10258         * Currently, the specifier holds the chosen provider name when the mode requests
10259         * a specific provider. It may be used to store the provider name even when the
10260         * mode changes so that temporarily disabling and re-enabling the specific
10261         * provider mode does not necessitate retyping the provider hostname.
10262         *
10263         * @hide
10264         */
10265        public static final String PRIVATE_DNS_MODE = "private_dns_mode";
10266
10267        private static final Validator PRIVATE_DNS_MODE_VALIDATOR = ANY_STRING_VALIDATOR;
10268
10269        /**
10270         * @hide
10271         */
10272        public static final String PRIVATE_DNS_SPECIFIER = "private_dns_specifier";
10273
10274        private static final Validator PRIVATE_DNS_SPECIFIER_VALIDATOR = ANY_STRING_VALIDATOR;
10275
10276        /** {@hide} */
10277        public static final String
10278                BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
10279        /** {@hide} */
10280        public static final String
10281                BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
10282        /** {@hide} */
10283        public static final String
10284                BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX = "bluetooth_a2dp_src_priority_";
10285        /** {@hide} */
10286        public static final String BLUETOOTH_A2DP_SUPPORTS_OPTIONAL_CODECS_PREFIX =
10287                "bluetooth_a2dp_supports_optional_codecs_";
10288        /** {@hide} */
10289        public static final String BLUETOOTH_A2DP_OPTIONAL_CODECS_ENABLED_PREFIX =
10290                "bluetooth_a2dp_optional_codecs_enabled_";
10291        /** {@hide} */
10292        public static final String
10293                BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
10294        /** {@hide} */
10295        public static final String
10296                BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
10297        /** {@hide} */
10298        public static final String
10299                BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX = "bluetooth_map_client_priority_";
10300        /** {@hide} */
10301        public static final String
10302                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
10303        /** {@hide} */
10304        public static final String
10305                BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
10306        /** {@hide} */
10307        public static final String
10308                BLUETOOTH_PAN_PRIORITY_PREFIX = "bluetooth_pan_priority_";
10309        /** {@hide} */
10310        public static final String
10311                BLUETOOTH_HEARING_AID_PRIORITY_PREFIX = "bluetooth_hearing_aid_priority_";
10312
10313        /**
10314         * Activity manager specific settings.
10315         * This is encoded as a key=value list, separated by commas. Ex:
10316         *
10317         * "gc_timeout=5000,max_cached_processes=24"
10318         *
10319         * The following keys are supported:
10320         *
10321         * <pre>
10322         * max_cached_processes                 (int)
10323         * background_settle_time               (long)
10324         * fgservice_min_shown_time             (long)
10325         * fgservice_min_report_time            (long)
10326         * fgservice_screen_on_before_time      (long)
10327         * fgservice_screen_on_after_time       (long)
10328         * content_provider_retain_time         (long)
10329         * gc_timeout                           (long)
10330         * gc_min_interval                      (long)
10331         * full_pss_min_interval                (long)
10332         * full_pss_lowered_interval            (long)
10333         * power_check_interval                 (long)
10334         * power_check_max_cpu_1                (int)
10335         * power_check_max_cpu_2                (int)
10336         * power_check_max_cpu_3                (int)
10337         * power_check_max_cpu_4                (int)
10338         * service_usage_interaction_time       (long)
10339         * usage_stats_interaction_interval     (long)
10340         * service_restart_duration             (long)
10341         * service_reset_run_duration           (long)
10342         * service_restart_duration_factor      (int)
10343         * service_min_restart_time_between     (long)
10344         * service_max_inactivity               (long)
10345         * service_bg_start_timeout             (long)
10346         * process_start_async                  (boolean)
10347         * </pre>
10348         *
10349         * <p>
10350         * Type: string
10351         * @hide
10352         * @see com.android.server.am.ActivityManagerConstants
10353         */
10354        public static final String ACTIVITY_MANAGER_CONSTANTS = "activity_manager_constants";
10355
10356        /**
10357         * Device Idle (Doze) specific settings.
10358         * This is encoded as a key=value list, separated by commas. Ex:
10359         *
10360         * "inactive_to=60000,sensing_to=400000"
10361         *
10362         * The following keys are supported:
10363         *
10364         * <pre>
10365         * inactive_to                      (long)
10366         * sensing_to                       (long)
10367         * motion_inactive_to               (long)
10368         * idle_after_inactive_to           (long)
10369         * idle_pending_to                  (long)
10370         * max_idle_pending_to              (long)
10371         * idle_pending_factor              (float)
10372         * idle_to                          (long)
10373         * max_idle_to                      (long)
10374         * idle_factor                      (float)
10375         * min_time_to_alarm                (long)
10376         * max_temp_app_whitelist_duration  (long)
10377         * notification_whitelist_duration  (long)
10378         * </pre>
10379         *
10380         * <p>
10381         * Type: string
10382         * @hide
10383         * @see com.android.server.DeviceIdleController.Constants
10384         */
10385        public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";
10386
10387        /**
10388         * Battery Saver specific settings
10389         * This is encoded as a key=value list, separated by commas. Ex:
10390         *
10391         * "vibration_disabled=true,adjust_brightness_factor=0.5"
10392         *
10393         * The following keys are supported:
10394         *
10395         * <pre>
10396         * vibration_disabled                (boolean)
10397         * animation_disabled                (boolean)
10398         * soundtrigger_disabled             (boolean)
10399         * fullbackup_deferred               (boolean)
10400         * keyvaluebackup_deferred           (boolean)
10401         * firewall_disabled                 (boolean)
10402         * gps_mode                          (int)
10403         * adjust_brightness_disabled        (boolean)
10404         * adjust_brightness_factor          (float)
10405         * </pre>
10406         * @hide
10407         * @see com.android.server.power.BatterySaverPolicy
10408         */
10409        public static final String BATTERY_SAVER_CONSTANTS = "battery_saver_constants";
10410
10411        /**
10412         * Battery Saver device specific settings
10413         * This is encoded as a key=value list, separated by commas.
10414         * See {@link com.android.server.power.BatterySaverPolicy} for the details.
10415         *
10416         * @hide
10417         */
10418        public static final String BATTERY_SAVER_DEVICE_SPECIFIC_CONSTANTS =
10419                "battery_saver_device_specific_constants";
10420
10421        /**
10422         * Battery tip specific settings
10423         * This is encoded as a key=value list, separated by commas. Ex:
10424         *
10425         * "battery_tip_enabled=true,summary_enabled=true,high_usage_enabled=true,"
10426         * "high_usage_app_count=3,reduced_battery_enabled=false,reduced_battery_percent=50,"
10427         * "high_usage_battery_draining=25,high_usage_period_ms=3000"
10428         *
10429         * The following keys are supported:
10430         *
10431         * <pre>
10432         * battery_tip_enabled              (boolean)
10433         * summary_enabled                  (boolean)
10434         * battery_saver_tip_enabled        (boolean)
10435         * high_usage_enabled               (boolean)
10436         * high_usage_app_count             (int)
10437         * high_usage_period_ms             (long)
10438         * high_usage_battery_draining      (int)
10439         * app_restriction_enabled          (boolean)
10440         * reduced_battery_enabled          (boolean)
10441         * reduced_battery_percent          (int)
10442         * low_battery_enabled              (boolean)
10443         * low_battery_hour                 (int)
10444         * </pre>
10445         * @hide
10446         */
10447        public static final String BATTERY_TIP_CONSTANTS = "battery_tip_constants";
10448
10449        /**
10450         * Battery anomaly detection specific settings
10451         * This is encoded as a key=value list, separated by commas.
10452         * wakeup_blacklisted_tags is a string, encoded as a set of tags, encoded via
10453         * {@link Uri#encode(String)}, separated by colons. Ex:
10454         *
10455         * "anomaly_detection_enabled=true,wakelock_threshold=2000,wakeup_alarm_enabled=true,"
10456         * "wakeup_alarm_threshold=10,wakeup_blacklisted_tags=tag1:tag2:with%2Ccomma:with%3Acolon"
10457         *
10458         * The following keys are supported:
10459         *
10460         * <pre>
10461         * anomaly_detection_enabled       (boolean)
10462         * wakelock_enabled                (boolean)
10463         * wakelock_threshold              (long)
10464         * wakeup_alarm_enabled            (boolean)
10465         * wakeup_alarm_threshold          (long)
10466         * wakeup_blacklisted_tags         (string)
10467         * bluetooth_scan_enabled          (boolean)
10468         * bluetooth_scan_threshold        (long)
10469         * </pre>
10470         * @hide
10471         */
10472        public static final String ANOMALY_DETECTION_CONSTANTS = "anomaly_detection_constants";
10473
10474        /**
10475         * An integer to show the version of the anomaly config. Ex: 1, which means
10476         * current version is 1.
10477         * @hide
10478         */
10479        public static final String ANOMALY_CONFIG_VERSION = "anomaly_config_version";
10480
10481        /**
10482         * A base64-encoded string represents anomaly stats config, used for
10483         * {@link android.app.StatsManager}.
10484         * @hide
10485         */
10486        public static final String ANOMALY_CONFIG = "anomaly_config";
10487
10488        /**
10489         * Always on display(AOD) specific settings
10490         * This is encoded as a key=value list, separated by commas. Ex:
10491         *
10492         * "prox_screen_off_delay=10000,screen_brightness_array=0:1:2:3:4"
10493         *
10494         * The following keys are supported:
10495         *
10496         * <pre>
10497         * screen_brightness_array         (int[])
10498         * dimming_scrim_array             (int[])
10499         * prox_screen_off_delay           (long)
10500         * prox_cooldown_trigger           (long)
10501         * prox_cooldown_period            (long)
10502         * </pre>
10503         * @hide
10504         */
10505        public static final String ALWAYS_ON_DISPLAY_CONSTANTS = "always_on_display_constants";
10506
10507        /**
10508        * System VDSO global setting. This links to the "sys.vdso" system property.
10509        * The following values are supported:
10510        * false  -> both 32 and 64 bit vdso disabled
10511        * 32     -> 32 bit vdso enabled
10512        * 64     -> 64 bit vdso enabled
10513        * Any other value defaults to both 32 bit and 64 bit true.
10514        * @hide
10515        */
10516        public static final String SYS_VDSO = "sys_vdso";
10517
10518        /**
10519        * UidCpuPower global setting. This links the sys.uidcpupower system property.
10520        * The following values are supported:
10521        * 0 -> /proc/uid_cpupower/* are disabled
10522        * 1 -> /proc/uid_cpupower/* are enabled
10523        * Any other value defaults to enabled.
10524        * @hide
10525        */
10526        public static final String SYS_UIDCPUPOWER = "sys_uidcpupower";
10527
10528        /**
10529        * traced global setting. This controls weather the deamons: traced and
10530        * traced_probes run. This links the sys.traced system property.
10531        * The following values are supported:
10532        * 0 -> traced and traced_probes are disabled
10533        * 1 -> traced and traced_probes are enabled
10534        * Any other value defaults to disabled.
10535        * @hide
10536        */
10537        public static final String SYS_TRACED = "sys_traced";
10538
10539        /**
10540         * An integer to reduce the FPS by this factor. Only for experiments. Need to reboot the
10541         * device for this setting to take full effect.
10542         *
10543         * @hide
10544         */
10545        public static final String FPS_DEVISOR = "fps_divisor";
10546
10547        /**
10548         * Flag to enable or disable display panel low power mode (lpm)
10549         * false -> Display panel power saving mode is disabled.
10550         * true  -> Display panel power saving mode is enabled.
10551         *
10552         * @hide
10553         */
10554        public static final String DISPLAY_PANEL_LPM = "display_panel_lpm";
10555
10556        /**
10557         * App standby (app idle) specific settings.
10558         * This is encoded as a key=value list, separated by commas. Ex:
10559         * <p>
10560         * "idle_duration=5000,parole_interval=4500"
10561         * <p>
10562         * All durations are in millis.
10563         * The following keys are supported:
10564         *
10565         * <pre>
10566         * idle_duration2       (long)
10567         * wallclock_threshold  (long)
10568         * parole_interval      (long)
10569         * parole_duration      (long)
10570         *
10571         * idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
10572         * </pre>
10573         *
10574         * <p>
10575         * Type: string
10576         * @hide
10577         * @see com.android.server.usage.UsageStatsService.SettingsObserver
10578         */
10579        public static final String APP_IDLE_CONSTANTS = "app_idle_constants";
10580
10581        /**
10582         * Power manager specific settings.
10583         * This is encoded as a key=value list, separated by commas. Ex:
10584         *
10585         * "no_cached_wake_locks=1"
10586         *
10587         * The following keys are supported:
10588         *
10589         * <pre>
10590         * no_cached_wake_locks                 (boolean)
10591         * </pre>
10592         *
10593         * <p>
10594         * Type: string
10595         * @hide
10596         * @see com.android.server.power.PowerManagerConstants
10597         */
10598        public static final String POWER_MANAGER_CONSTANTS = "power_manager_constants";
10599
10600        /**
10601         * Alarm manager specific settings.
10602         * This is encoded as a key=value list, separated by commas. Ex:
10603         *
10604         * "min_futurity=5000,allow_while_idle_short_time=4500"
10605         *
10606         * The following keys are supported:
10607         *
10608         * <pre>
10609         * min_futurity                         (long)
10610         * min_interval                         (long)
10611         * allow_while_idle_short_time          (long)
10612         * allow_while_idle_long_time           (long)
10613         * allow_while_idle_whitelist_duration  (long)
10614         * </pre>
10615         *
10616         * <p>
10617         * Type: string
10618         * @hide
10619         * @see com.android.server.AlarmManagerService.Constants
10620         */
10621        public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";
10622
10623        /**
10624         * Job scheduler specific settings.
10625         * This is encoded as a key=value list, separated by commas. Ex:
10626         *
10627         * "min_ready_jobs_count=2,moderate_use_factor=.5"
10628         *
10629         * The following keys are supported:
10630         *
10631         * <pre>
10632         * min_idle_count                       (int)
10633         * min_charging_count                   (int)
10634         * min_connectivity_count               (int)
10635         * min_content_count                    (int)
10636         * min_ready_jobs_count                 (int)
10637         * heavy_use_factor                     (float)
10638         * moderate_use_factor                  (float)
10639         * fg_job_count                         (int)
10640         * bg_normal_job_count                  (int)
10641         * bg_moderate_job_count                (int)
10642         * bg_low_job_count                     (int)
10643         * bg_critical_job_count                (int)
10644         * </pre>
10645         *
10646         * <p>
10647         * Type: string
10648         * @hide
10649         * @see com.android.server.job.JobSchedulerService.Constants
10650         */
10651        public static final String JOB_SCHEDULER_CONSTANTS = "job_scheduler_constants";
10652
10653        /**
10654         * ShortcutManager specific settings.
10655         * This is encoded as a key=value list, separated by commas. Ex:
10656         *
10657         * "reset_interval_sec=86400,max_updates_per_interval=1"
10658         *
10659         * The following keys are supported:
10660         *
10661         * <pre>
10662         * reset_interval_sec              (long)
10663         * max_updates_per_interval        (int)
10664         * max_icon_dimension_dp           (int, DP)
10665         * max_icon_dimension_dp_lowram    (int, DP)
10666         * max_shortcuts                   (int)
10667         * icon_quality                    (int, 0-100)
10668         * icon_format                     (String)
10669         * </pre>
10670         *
10671         * <p>
10672         * Type: string
10673         * @hide
10674         * @see com.android.server.pm.ShortcutService.ConfigConstants
10675         */
10676        public static final String SHORTCUT_MANAGER_CONSTANTS = "shortcut_manager_constants";
10677
10678        /**
10679         * DevicePolicyManager specific settings.
10680         * This is encoded as a key=value list, separated by commas. Ex:
10681         *
10682         * <pre>
10683         * das_died_service_reconnect_backoff_sec       (long)
10684         * das_died_service_reconnect_backoff_increase  (float)
10685         * das_died_service_reconnect_max_backoff_sec   (long)
10686         * </pre>
10687         *
10688         * <p>
10689         * Type: string
10690         * @hide
10691         * see also com.android.server.devicepolicy.DevicePolicyConstants
10692         */
10693        public static final String DEVICE_POLICY_CONSTANTS = "device_policy_constants";
10694
10695        /**
10696         * TextClassifier specific settings.
10697         * This is encoded as a key=value list, separated by commas. String[] types like
10698         * entity_list_default use ":" as delimiter for values. Ex:
10699         *
10700         * <pre>
10701         * smart_linkify_enabled                    (boolean)
10702         * system_textclassifier_enabled            (boolean)
10703         * model_dark_launch_enabled                (boolean)
10704         * smart_selection_enabled                  (boolean)
10705         * smart_text_share_enabled                 (boolean)
10706         * smart_linkify_enabled                    (boolean)
10707         * smart_select_animation_enabled           (boolean)
10708         * suggest_selection_max_range_length       (int)
10709         * classify_text_max_range_length           (int)
10710         * generate_links_max_text_length           (int)
10711         * generate_links_log_sample_rate           (int)
10712         * entity_list_default                      (String[])
10713         * entity_list_not_editable                 (String[])
10714         * entity_list_editable                     (String[])
10715         * </pre>
10716         *
10717         * <p>
10718         * Type: string
10719         * @hide
10720         * see also android.view.textclassifier.TextClassificationConstants
10721         */
10722        public static final String TEXT_CLASSIFIER_CONSTANTS = "text_classifier_constants";
10723
10724        /**
10725         * BatteryStats specific settings.
10726         * This is encoded as a key=value list, separated by commas. Ex: "foo=1,bar=true"
10727         *
10728         * The following keys are supported:
10729         * <pre>
10730         * track_cpu_times_by_proc_state (boolean)
10731         * track_cpu_active_cluster_time (boolean)
10732         * read_binary_cpu_time          (boolean)
10733         * proc_state_cpu_times_read_delay_ms (long)
10734         * </pre>
10735         *
10736         * <p>
10737         * Type: string
10738         * @hide
10739         * see also com.android.internal.os.BatteryStatsImpl.Constants
10740         */
10741        public static final String BATTERY_STATS_CONSTANTS = "battery_stats_constants";
10742
10743        /**
10744         * SyncManager specific settings.
10745         *
10746         * <p>
10747         * Type: string
10748         * @hide
10749         * @see com.android.server.content.SyncManagerConstants
10750         */
10751        public static final String SYNC_MANAGER_CONSTANTS = "sync_manager_constants";
10752
10753        /**
10754         * Whether or not App Standby feature is enabled. This controls throttling of apps
10755         * based on usage patterns and predictions.
10756         * Type: int (0 for false, 1 for true)
10757         * Default: 1
10758         * @hide
10759         */
10760        public static final String APP_STANDBY_ENABLED = "app_standby_enabled";
10761
10762        /**
10763         * Whether or not app auto restriction is enabled. When it is enabled, settings app will
10764         * auto restrict the app if it has bad behavior(e.g. hold wakelock for long time).
10765         *
10766         * Type: boolean (0 for false, 1 for true)
10767         * Default: 1
10768         *
10769         * @hide
10770         */
10771        public static final String APP_AUTO_RESTRICTION_ENABLED =
10772                "app_auto_restriction_enabled";
10773
10774        private static final Validator APP_AUTO_RESTRICTION_ENABLED_VALIDATOR =
10775                BOOLEAN_VALIDATOR;
10776
10777        /**
10778         * Feature flag to enable or disable the Forced App Standby feature.
10779         * Type: int (0 for false, 1 for true)
10780         * Default: 1
10781         * @hide
10782         */
10783        public static final String FORCED_APP_STANDBY_ENABLED = "forced_app_standby_enabled";
10784
10785        /**
10786         * Whether or not to enable Forced App Standby on small battery devices.
10787         * Type: int (0 for false, 1 for true)
10788         * Default: 0
10789         * @hide
10790         */
10791        public static final String FORCED_APP_STANDBY_FOR_SMALL_BATTERY_ENABLED
10792                = "forced_app_standby_for_small_battery_enabled";
10793
10794        /**
10795         * Whether or not to enable the Off Body, Radios Off feature on small battery devices.
10796         * Type: int (0 for false, 1 for true)
10797         * Default: 0
10798         * @hide
10799         */
10800        public static final String OFF_BODY_RADIOS_OFF_FOR_SMALL_BATTERY_ENABLED
10801                = "off_body_radios_off_for_small_battery_enabled";
10802
10803        /**
10804         * How long after the device goes off body to disable radios, in milliseconds.
10805         * Type: long
10806         * Default: 10 minutes
10807         * @hide
10808         */
10809        public static final String OFF_BODY_RADIOS_OFF_DELAY_MS = "off_body_radios_off_delay_ms";
10810
10811        /**
10812         * Whether or not to turn on Wifi when proxy is disconnected.
10813         * Type: int (0 for false, 1 for true)
10814         * Default: 1
10815         * @hide
10816         */
10817        public static final String WIFI_ON_WHEN_PROXY_DISCONNECTED
10818                = "wifi_on_when_proxy_disconnected";
10819
10820        /**
10821         * Time Only Mode specific settings.
10822         * This is encoded as a key=value list, separated by commas. Ex: "foo=1,bar=true"
10823         *
10824         * The following keys are supported:
10825         *
10826         * <pre>
10827         * enabled                  (boolean)
10828         * disable_tilt_to_wake     (boolean)
10829         * disable_touch_to_wake    (boolean)
10830         * </pre>
10831         * Type: string
10832         * @hide
10833         */
10834        public static final String TIME_ONLY_MODE_CONSTANTS
10835                = "time_only_mode_constants";
10836
10837        /**
10838         * Whether of not to send keycode sleep for ungaze when Home is the foreground activity on
10839         * watch type devices.
10840         * Type: int (0 for false, 1 for true)
10841         * Default: 0
10842         * @hide
10843         */
10844        public static final String UNGAZE_SLEEP_ENABLED = "ungaze_sleep_enabled";
10845
10846        /**
10847         * Whether or not Network Watchlist feature is enabled.
10848         * Type: int (0 for false, 1 for true)
10849         * Default: 0
10850         * @hide
10851         */
10852        public static final String NETWORK_WATCHLIST_ENABLED = "network_watchlist_enabled";
10853
10854        /**
10855         * Flag to keep background restricted profiles running after exiting. If disabled,
10856         * the restricted profile can be put into stopped state as soon as the user leaves it.
10857         * Type: int (0 for false, 1 for true)
10858         *
10859         * Overridden by the system based on device information. If null, the value specified
10860         * by {@code config_keepRestrictedProfilesInBackground} is used.
10861         *
10862         * @hide
10863         */
10864        public static final String KEEP_PROFILE_IN_BACKGROUND = "keep_profile_in_background";
10865
10866        /**
10867         * Get the key that retrieves a bluetooth headset's priority.
10868         * @hide
10869         */
10870        public static final String getBluetoothHeadsetPriorityKey(String address) {
10871            return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10872        }
10873
10874        /**
10875         * Get the key that retrieves a bluetooth a2dp sink's priority.
10876         * @hide
10877         */
10878        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
10879            return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10880        }
10881
10882        /**
10883         * Get the key that retrieves a bluetooth a2dp src's priority.
10884         * @hide
10885         */
10886        public static final String getBluetoothA2dpSrcPriorityKey(String address) {
10887            return BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10888        }
10889
10890        /**
10891         * Get the key that retrieves a bluetooth a2dp device's ability to support optional codecs.
10892         * @hide
10893         */
10894        public static final String getBluetoothA2dpSupportsOptionalCodecsKey(String address) {
10895            return BLUETOOTH_A2DP_SUPPORTS_OPTIONAL_CODECS_PREFIX +
10896                    address.toUpperCase(Locale.ROOT);
10897        }
10898
10899        /**
10900         * Get the key that retrieves whether a bluetooth a2dp device should have optional codecs
10901         * enabled.
10902         * @hide
10903         */
10904        public static final String getBluetoothA2dpOptionalCodecsEnabledKey(String address) {
10905            return BLUETOOTH_A2DP_OPTIONAL_CODECS_ENABLED_PREFIX +
10906                    address.toUpperCase(Locale.ROOT);
10907        }
10908
10909        /**
10910         * Get the key that retrieves a bluetooth Input Device's priority.
10911         * @hide
10912         */
10913        public static final String getBluetoothHidHostPriorityKey(String address) {
10914            return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10915        }
10916
10917        /**
10918         * Get the key that retrieves a bluetooth pan client priority.
10919         * @hide
10920         */
10921        public static final String getBluetoothPanPriorityKey(String address) {
10922            return BLUETOOTH_PAN_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10923        }
10924
10925        /**
10926         * Get the key that retrieves a bluetooth hearing aid priority.
10927         * @hide
10928         */
10929        public static final String getBluetoothHearingAidPriorityKey(String address) {
10930            return BLUETOOTH_HEARING_AID_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10931        }
10932
10933        /**
10934         * Get the key that retrieves a bluetooth map priority.
10935         * @hide
10936         */
10937        public static final String getBluetoothMapPriorityKey(String address) {
10938            return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10939        }
10940
10941        /**
10942         * Get the key that retrieves a bluetooth map client priority.
10943         * @hide
10944         */
10945        public static final String getBluetoothMapClientPriorityKey(String address) {
10946            return BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10947        }
10948
10949        /**
10950         * Get the key that retrieves a bluetooth pbap client priority.
10951         * @hide
10952         */
10953        public static final String getBluetoothPbapClientPriorityKey(String address) {
10954            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10955        }
10956
10957        /**
10958         * Get the key that retrieves a bluetooth sap priority.
10959         * @hide
10960         */
10961        public static final String getBluetoothSapPriorityKey(String address) {
10962            return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
10963        }
10964
10965        /**
10966         * Scaling factor for normal window animations. Setting to 0 will
10967         * disable window animations.
10968         */
10969        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
10970
10971        /**
10972         * Scaling factor for activity transition animations. Setting to 0 will
10973         * disable window animations.
10974         */
10975        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
10976
10977        /**
10978         * Scaling factor for Animator-based animations. This affects both the
10979         * start delay and duration of all such animations. Setting to 0 will
10980         * cause animations to end immediately. The default value is 1.
10981         */
10982        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
10983
10984        /**
10985         * Scaling factor for normal window animations. Setting to 0 will
10986         * disable window animations.
10987         *
10988         * @hide
10989         */
10990        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
10991
10992        /**
10993         * If 0, the compatibility mode is off for all applications.
10994         * If 1, older applications run under compatibility mode.
10995         * TODO: remove this settings before code freeze (bug/1907571)
10996         * @hide
10997         */
10998        public static final String COMPATIBILITY_MODE = "compatibility_mode";
10999
11000        /**
11001         * CDMA only settings
11002         * Emergency Tone  0 = Off
11003         *                 1 = Alert
11004         *                 2 = Vibrate
11005         * @hide
11006         */
11007        public static final String EMERGENCY_TONE = "emergency_tone";
11008
11009        private static final Validator EMERGENCY_TONE_VALIDATOR =
11010                new SettingsValidators.DiscreteValueValidator(new String[] {"0", "1", "2"});
11011
11012        /**
11013         * CDMA only settings
11014         * Whether the auto retry is enabled. The value is
11015         * boolean (1 or 0).
11016         * @hide
11017         */
11018        public static final String CALL_AUTO_RETRY = "call_auto_retry";
11019
11020        private static final Validator CALL_AUTO_RETRY_VALIDATOR = BOOLEAN_VALIDATOR;
11021
11022        /**
11023         * A setting that can be read whether the emergency affordance is currently needed.
11024         * The value is a boolean (1 or 0).
11025         * @hide
11026         */
11027        public static final String EMERGENCY_AFFORDANCE_NEEDED = "emergency_affordance_needed";
11028
11029        /**
11030         * See RIL_PreferredNetworkType in ril.h
11031         * @hide
11032         */
11033        public static final String PREFERRED_NETWORK_MODE =
11034                "preferred_network_mode";
11035
11036        /**
11037         * Name of an application package to be debugged.
11038         */
11039        public static final String DEBUG_APP = "debug_app";
11040
11041        /**
11042         * If 1, when launching DEBUG_APP it will wait for the debugger before
11043         * starting user code.  If 0, it will run normally.
11044         */
11045        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
11046
11047        /**
11048         * Allow GPU debug layers?
11049         * 0 = no
11050         * 1 = yes
11051         * @hide
11052         */
11053        public static final String ENABLE_GPU_DEBUG_LAYERS = "enable_gpu_debug_layers";
11054
11055        /**
11056         * App allowed to load GPU debug layers
11057         * @hide
11058         */
11059        public static final String GPU_DEBUG_APP = "gpu_debug_app";
11060
11061        /**
11062         * Ordered GPU debug layer list
11063         * i.e. <layer1>:<layer2>:...:<layerN>
11064         * @hide
11065         */
11066        public static final String GPU_DEBUG_LAYERS = "gpu_debug_layers";
11067
11068        /**
11069         * Control whether the process CPU usage meter should be shown.
11070         *
11071         * @deprecated This functionality is no longer available as of
11072         * {@link android.os.Build.VERSION_CODES#N_MR1}.
11073         */
11074        @Deprecated
11075        public static final String SHOW_PROCESSES = "show_processes";
11076
11077        /**
11078         * If 1 low power mode (aka battery saver) is enabled.
11079         * @hide
11080         */
11081        @TestApi
11082        public static final String LOW_POWER_MODE = "low_power";
11083
11084        /**
11085         * If 1, battery saver ({@link #LOW_POWER_MODE}) will be re-activated after the device
11086         * is unplugged from a charger or rebooted.
11087         * @hide
11088         */
11089        @TestApi
11090        public static final String LOW_POWER_MODE_STICKY = "low_power_sticky";
11091
11092        /**
11093         * Battery level [1-100] at which low power mode automatically turns on.
11094         * If 0, it will not automatically turn on.
11095         * @hide
11096         */
11097        public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";
11098
11099        private static final Validator LOW_POWER_MODE_TRIGGER_LEVEL_VALIDATOR =
11100                new SettingsValidators.InclusiveIntegerRangeValidator(0, 100);
11101
11102
11103        /**
11104         * The max value for {@link #LOW_POWER_MODE_TRIGGER_LEVEL}. If this setting is not set
11105         * or the value is 0, the default max will be used.
11106         *
11107         * @hide
11108         */
11109        public static final String LOW_POWER_MODE_TRIGGER_LEVEL_MAX = "low_power_trigger_level_max";
11110
11111        /**
11112         * See com.android.settingslib.fuelgauge.BatterySaverUtils.
11113         * @hide
11114         */
11115        public static final String LOW_POWER_MODE_SUGGESTION_PARAMS =
11116                "low_power_mode_suggestion_params";
11117
11118        /**
11119         * If not 0, the activity manager will aggressively finish activities and
11120         * processes as soon as they are no longer needed.  If 0, the normal
11121         * extended lifetime is used.
11122         */
11123        public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
11124
11125        /**
11126         * If nonzero, all system error dialogs will be hidden.  For example, the
11127         * crash and ANR dialogs will not be shown, and the system will just proceed
11128         * as if they had been accepted by the user.
11129         * @hide
11130         */
11131        public static final String HIDE_ERROR_DIALOGS = "hide_error_dialogs";
11132
11133        /**
11134         * Use Dock audio output for media:
11135         *      0 = disabled
11136         *      1 = enabled
11137         * @hide
11138         */
11139        public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
11140
11141        private static final Validator DOCK_AUDIO_MEDIA_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;
11142
11143        /**
11144         * The surround sound formats AC3, DTS or IEC61937 are
11145         * available for use if they are detected.
11146         * This is the default mode.
11147         *
11148         * Note that AUTO is equivalent to ALWAYS for Android TVs and other
11149         * devices that have an S/PDIF output. This is because S/PDIF
11150         * is unidirectional and the TV cannot know if a decoder is
11151         * connected. So it assumes they are always available.
11152         * @hide
11153         */
11154         public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;
11155
11156        /**
11157         * AC3, DTS or IEC61937 are NEVER available, even if they
11158         * are detected by the hardware. Those formats will not be
11159         * reported.
11160         *
11161         * An example use case would be an AVR reports that it is capable of
11162         * surround sound decoding but is broken. If NEVER is chosen
11163         * then apps must use PCM output instead of encoded output.
11164         * @hide
11165         */
11166         public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;
11167
11168        /**
11169         * AC3, DTS or IEC61937 are ALWAYS available, even if they
11170         * are not detected by the hardware. Those formats will be
11171         * reported as part of the HDMI output capability. Applications
11172         * are then free to use either PCM or encoded output.
11173         *
11174         * An example use case would be a when TV was connected over
11175         * TOS-link to an AVR. But the TV could not see it because TOS-link
11176         * is unidirectional.
11177         * @hide
11178         */
11179         public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;
11180
11181        /**
11182         * Set to ENCODED_SURROUND_OUTPUT_AUTO,
11183         * ENCODED_SURROUND_OUTPUT_NEVER or
11184         * ENCODED_SURROUND_OUTPUT_ALWAYS
11185         * @hide
11186         */
11187        public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";
11188
11189        private static final Validator ENCODED_SURROUND_OUTPUT_VALIDATOR =
11190                new SettingsValidators.DiscreteValueValidator(new String[] {"0", "1", "2"});
11191
11192        /**
11193         * Persisted safe headphone volume management state by AudioService
11194         * @hide
11195         */
11196        public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";
11197
11198        /**
11199         * URL for tzinfo (time zone) updates
11200         * @hide
11201         */
11202        public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";
11203
11204        /**
11205         * URL for tzinfo (time zone) update metadata
11206         * @hide
11207         */
11208        public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";
11209
11210        /**
11211         * URL for selinux (mandatory access control) updates
11212         * @hide
11213         */
11214        public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";
11215
11216        /**
11217         * URL for selinux (mandatory access control) update metadata
11218         * @hide
11219         */
11220        public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";
11221
11222        /**
11223         * URL for sms short code updates
11224         * @hide
11225         */
11226        public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
11227                "sms_short_codes_content_url";
11228
11229        /**
11230         * URL for sms short code update metadata
11231         * @hide
11232         */
11233        public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
11234                "sms_short_codes_metadata_url";
11235
11236        /**
11237         * URL for apn_db updates
11238         * @hide
11239         */
11240        public static final String APN_DB_UPDATE_CONTENT_URL = "apn_db_content_url";
11241
11242        /**
11243         * URL for apn_db update metadata
11244         * @hide
11245         */
11246        public static final String APN_DB_UPDATE_METADATA_URL = "apn_db_metadata_url";
11247
11248        /**
11249         * URL for cert pinlist updates
11250         * @hide
11251         */
11252        public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";
11253
11254        /**
11255         * URL for cert pinlist updates
11256         * @hide
11257         */
11258        public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";
11259
11260        /**
11261         * URL for intent firewall updates
11262         * @hide
11263         */
11264        public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
11265                "intent_firewall_content_url";
11266
11267        /**
11268         * URL for intent firewall update metadata
11269         * @hide
11270         */
11271        public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
11272                "intent_firewall_metadata_url";
11273
11274        /**
11275         * URL for lang id model updates
11276         * @hide
11277         */
11278        public static final String LANG_ID_UPDATE_CONTENT_URL = "lang_id_content_url";
11279
11280        /**
11281         * URL for lang id model update metadata
11282         * @hide
11283         */
11284        public static final String LANG_ID_UPDATE_METADATA_URL = "lang_id_metadata_url";
11285
11286        /**
11287         * URL for smart selection model updates
11288         * @hide
11289         */
11290        public static final String SMART_SELECTION_UPDATE_CONTENT_URL =
11291                "smart_selection_content_url";
11292
11293        /**
11294         * URL for smart selection model update metadata
11295         * @hide
11296         */
11297        public static final String SMART_SELECTION_UPDATE_METADATA_URL =
11298                "smart_selection_metadata_url";
11299
11300        /**
11301         * SELinux enforcement status. If 0, permissive; if 1, enforcing.
11302         * @hide
11303         */
11304        public static final String SELINUX_STATUS = "selinux_status";
11305
11306        /**
11307         * Developer setting to force RTL layout.
11308         * @hide
11309         */
11310        public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
11311
11312        /**
11313         * Milliseconds after screen-off after which low battery sounds will be silenced.
11314         *
11315         * If zero, battery sounds will always play.
11316         * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
11317         *
11318         * @hide
11319         */
11320        public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
11321
11322        /**
11323         * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
11324         * the caller is done with this, they should call {@link ContentResolver#delete} to
11325         * clean up any value that they may have written.
11326         *
11327         * @hide
11328         */
11329        public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";
11330
11331        /**
11332         * Defines global runtime overrides to window policy.
11333         *
11334         * See {@link com.android.server.policy.PolicyControl} for value format.
11335         *
11336         * @hide
11337         */
11338        public static final String POLICY_CONTROL = "policy_control";
11339
11340        /**
11341         * {@link android.view.DisplayCutout DisplayCutout} emulation mode.
11342         *
11343         * @hide
11344         */
11345        public static final String EMULATE_DISPLAY_CUTOUT = "emulate_display_cutout";
11346
11347        /** @hide */ public static final int EMULATE_DISPLAY_CUTOUT_OFF = 0;
11348        /** @hide */ public static final int EMULATE_DISPLAY_CUTOUT_ON = 1;
11349
11350        /**
11351         * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
11352         * or ZEN_MODE_NO_INTERRUPTIONS.
11353         *
11354         * @hide
11355         */
11356        public static final String ZEN_MODE = "zen_mode";
11357
11358        /** @hide */ public static final int ZEN_MODE_OFF = 0;
11359        /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
11360        /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
11361        /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
11362
11363        /** @hide */ public static String zenModeToString(int mode) {
11364            if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
11365            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
11366            if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
11367            return "ZEN_MODE_OFF";
11368        }
11369
11370        /** @hide */ public static boolean isValidZenMode(int value) {
11371            switch (value) {
11372                case Global.ZEN_MODE_OFF:
11373                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
11374                case Global.ZEN_MODE_ALARMS:
11375                case Global.ZEN_MODE_NO_INTERRUPTIONS:
11376                    return true;
11377                default:
11378                    return false;
11379            }
11380        }
11381
11382        /**
11383         * Value of the ringer before entering zen mode.
11384         *
11385         * @hide
11386         */
11387        public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";
11388
11389        /**
11390         * Opaque value, changes when persisted zen mode configuration changes.
11391         *
11392         * @hide
11393         */
11394        public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";
11395
11396        /**
11397         * If 0, turning on dnd manually will last indefinitely.
11398         * Else if non-negative, turning on dnd manually will last for this many minutes.
11399         * Else (if negative), turning on dnd manually will surface a dialog that prompts
11400         * user to specify a duration.
11401         * @hide
11402         */
11403        public static final String ZEN_DURATION = "zen_duration";
11404
11405        private static final Validator ZEN_DURATION_VALIDATOR = ANY_INTEGER_VALIDATOR;
11406
11407        /** @hide */ public static final int ZEN_DURATION_PROMPT = -1;
11408        /** @hide */ public static final int ZEN_DURATION_FOREVER = 0;
11409
11410        /**
11411         * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
11412         *
11413         * @hide
11414         */
11415        public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
11416                "heads_up_notifications_enabled";
11417
11418        /** @hide */ public static final int HEADS_UP_OFF = 0;
11419        /** @hide */ public static final int HEADS_UP_ON = 1;
11420
11421        /**
11422         * The name of the device
11423         */
11424        public static final String DEVICE_NAME = "device_name";
11425
11426        /**
11427         * Whether the NetworkScoringService has been first initialized.
11428         * <p>
11429         * Type: int (0 for false, 1 for true)
11430         * @hide
11431         */
11432        public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";
11433
11434        /**
11435         * Whether the user wants to be prompted for password to decrypt the device on boot.
11436         * This only matters if the storage is encrypted.
11437         * <p>
11438         * Type: int (0 for false, 1 for true)
11439         * @hide
11440         */
11441        public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
11442
11443        /**
11444         * Whether the Volte is enabled. If this setting is not set then we use the Carrier Config
11445         * value {@link CarrierConfigManager#KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL}.
11446         * <p>
11447         * Type: int (0 for false, 1 for true)
11448         * @hide
11449         * @deprecated Use {@link android.telephony.SubscriptionManager#ENHANCED_4G_MODE_ENABLED}
11450         * instead.
11451         */
11452        @Deprecated
11453        public static final String ENHANCED_4G_MODE_ENABLED =
11454                SubscriptionManager.ENHANCED_4G_MODE_ENABLED;
11455
11456        /**
11457         * Whether VT (Video Telephony over IMS) is enabled
11458         * <p>
11459         * Type: int (0 for false, 1 for true)
11460         *
11461         * @hide
11462         * @deprecated Use {@link android.telephony.SubscriptionManager#VT_IMS_ENABLED} instead.
11463         */
11464        @Deprecated
11465        public static final String VT_IMS_ENABLED = SubscriptionManager.VT_IMS_ENABLED;
11466
11467        /**
11468         * Whether WFC is enabled
11469         * <p>
11470         * Type: int (0 for false, 1 for true)
11471         *
11472         * @hide
11473         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_ENABLED} instead.
11474         */
11475        @Deprecated
11476        public static final String WFC_IMS_ENABLED = SubscriptionManager.WFC_IMS_ENABLED;
11477
11478        /**
11479         * WFC mode on home/non-roaming network.
11480         * <p>
11481         * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
11482         *
11483         * @hide
11484         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_MODE} instead.
11485         */
11486        @Deprecated
11487        public static final String WFC_IMS_MODE = SubscriptionManager.WFC_IMS_MODE;
11488
11489        /**
11490         * WFC mode on roaming network.
11491         * <p>
11492         * Type: int - see {@link #WFC_IMS_MODE} for values
11493         *
11494         * @hide
11495         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_ROAMING_MODE}
11496         * instead.
11497         */
11498        @Deprecated
11499        public static final String WFC_IMS_ROAMING_MODE = SubscriptionManager.WFC_IMS_ROAMING_MODE;
11500
11501        /**
11502         * Whether WFC roaming is enabled
11503         * <p>
11504         * Type: int (0 for false, 1 for true)
11505         *
11506         * @hide
11507         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_ROAMING_ENABLED}
11508         * instead
11509         */
11510        @Deprecated
11511        public static final String WFC_IMS_ROAMING_ENABLED =
11512                SubscriptionManager.WFC_IMS_ROAMING_ENABLED;
11513
11514        /**
11515         * Whether user can enable/disable LTE as a preferred network. A carrier might control
11516         * this via gservices, OMA-DM, carrier app, etc.
11517         * <p>
11518         * Type: int (0 for false, 1 for true)
11519         * @hide
11520         */
11521        public static final String LTE_SERVICE_FORCED = "lte_service_forced";
11522
11523        /**
11524         * Ephemeral app cookie max size in bytes.
11525         * <p>
11526         * Type: int
11527         * @hide
11528         */
11529        public static final String EPHEMERAL_COOKIE_MAX_SIZE_BYTES =
11530                "ephemeral_cookie_max_size_bytes";
11531
11532        /**
11533         * Toggle to enable/disable the entire ephemeral feature. By default, ephemeral is
11534         * enabled. Set to zero to disable.
11535         * <p>
11536         * Type: int (0 for false, 1 for true)
11537         *
11538         * @hide
11539         */
11540        public static final String ENABLE_EPHEMERAL_FEATURE = "enable_ephemeral_feature";
11541
11542        /**
11543         * Toggle to enable/disable dexopt for instant applications. The default is for dexopt
11544         * to be disabled.
11545         * <p>
11546         * Type: int (0 to disable, 1 to enable)
11547         *
11548         * @hide
11549         */
11550        public static final String INSTANT_APP_DEXOPT_ENABLED = "instant_app_dexopt_enabled";
11551
11552        /**
11553         * The min period for caching installed instant apps in milliseconds.
11554         * <p>
11555         * Type: long
11556         * @hide
11557         */
11558        public static final String INSTALLED_INSTANT_APP_MIN_CACHE_PERIOD =
11559                "installed_instant_app_min_cache_period";
11560
11561        /**
11562         * The max period for caching installed instant apps in milliseconds.
11563         * <p>
11564         * Type: long
11565         * @hide
11566         */
11567        public static final String INSTALLED_INSTANT_APP_MAX_CACHE_PERIOD =
11568                "installed_instant_app_max_cache_period";
11569
11570        /**
11571         * The min period for caching uninstalled instant apps in milliseconds.
11572         * <p>
11573         * Type: long
11574         * @hide
11575         */
11576        public static final String UNINSTALLED_INSTANT_APP_MIN_CACHE_PERIOD =
11577                "uninstalled_instant_app_min_cache_period";
11578
11579        /**
11580         * The max period for caching uninstalled instant apps in milliseconds.
11581         * <p>
11582         * Type: long
11583         * @hide
11584         */
11585        public static final String UNINSTALLED_INSTANT_APP_MAX_CACHE_PERIOD =
11586                "uninstalled_instant_app_max_cache_period";
11587
11588        /**
11589         * The min period for caching unused static shared libs in milliseconds.
11590         * <p>
11591         * Type: long
11592         * @hide
11593         */
11594        public static final String UNUSED_STATIC_SHARED_LIB_MIN_CACHE_PERIOD =
11595                "unused_static_shared_lib_min_cache_period";
11596
11597        /**
11598         * Allows switching users when system user is locked.
11599         * <p>
11600         * Type: int
11601         * @hide
11602         */
11603        public static final String ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED =
11604                "allow_user_switching_when_system_user_locked";
11605
11606        /**
11607         * Boot count since the device starts running API level 24.
11608         * <p>
11609         * Type: int
11610         */
11611        public static final String BOOT_COUNT = "boot_count";
11612
11613        /**
11614         * Whether the safe boot is disallowed.
11615         *
11616         * <p>This setting should have the identical value as the corresponding user restriction.
11617         * The purpose of the setting is to make the restriction available in early boot stages
11618         * before the user restrictions are loaded.
11619         * @hide
11620         */
11621        public static final String SAFE_BOOT_DISALLOWED = "safe_boot_disallowed";
11622
11623        /**
11624         * Whether this device is currently in retail demo mode. If true, device
11625         * usage is severely limited.
11626         * <p>
11627         * Type: int (0 for false, 1 for true)
11628         * @hide
11629         */
11630        public static final String DEVICE_DEMO_MODE = "device_demo_mode";
11631
11632        /**
11633         * Indicates the maximum time that an app is blocked for the network rules to get updated.
11634         *
11635         * Type: long
11636         *
11637         * @hide
11638         */
11639        public static final String NETWORK_ACCESS_TIMEOUT_MS = "network_access_timeout_ms";
11640
11641        /**
11642         * The reason for the settings database being downgraded. This is only for
11643         * troubleshooting purposes and its value should not be interpreted in any way.
11644         *
11645         * Type: string
11646         *
11647         * @hide
11648         */
11649        public static final String DATABASE_DOWNGRADE_REASON = "database_downgrade_reason";
11650
11651        /**
11652         * The build id of when the settings database was first created (or re-created due it
11653         * being missing).
11654         *
11655         * Type: string
11656         *
11657         * @hide
11658         */
11659        public static final String DATABASE_CREATION_BUILDID = "database_creation_buildid";
11660
11661        /**
11662         * Flag to toggle journal mode WAL on or off for the contacts database. WAL is enabled by
11663         * default. Set to 0 to disable.
11664         *
11665         * @hide
11666         */
11667        public static final String CONTACTS_DATABASE_WAL_ENABLED = "contacts_database_wal_enabled";
11668
11669        /**
11670         * Flag to enable the link to location permissions in location setting. Set to 0 to disable.
11671         *
11672         * @hide
11673         */
11674        public static final String LOCATION_SETTINGS_LINK_TO_PERMISSIONS_ENABLED =
11675                "location_settings_link_to_permissions_enabled";
11676
11677        /**
11678         * Flag to set the waiting time for euicc factory reset inside System > Settings
11679         * Type: long
11680         *
11681         * @hide
11682         */
11683        public static final String EUICC_FACTORY_RESET_TIMEOUT_MILLIS =
11684                "euicc_factory_reset_timeout_millis";
11685
11686        /**
11687         * Flag to set the timeout for when to refresh the storage settings cached data.
11688         * Type: long
11689         *
11690         * @hide
11691         */
11692        public static final String STORAGE_SETTINGS_CLOBBER_THRESHOLD =
11693                "storage_settings_clobber_threshold";
11694
11695        /**
11696         * If set to 1, {@link Secure#LOCATION_MODE} will be set to {@link Secure#LOCATION_MODE_OFF}
11697         * temporarily for all users.
11698         *
11699         * @hide
11700         */
11701        @TestApi
11702        public static final String LOCATION_GLOBAL_KILL_SWITCH =
11703                "location_global_kill_switch";
11704
11705        /**
11706         * If set to 1, SettingsProvider's restoreAnyVersion="true" attribute will be ignored
11707         * and restoring to lower version of platform API will be skipped.
11708         *
11709         * @hide
11710         */
11711        public static final String OVERRIDE_SETTINGS_PROVIDER_RESTORE_ANY_VERSION =
11712                "override_settings_provider_restore_any_version";
11713        /**
11714         * Flag to toggle whether system services report attribution chains when they attribute
11715         * battery use via a {@code WorkSource}.
11716         *
11717         * Type: int (0 to disable, 1 to enable)
11718         *
11719         * @hide
11720         */
11721        public static final String CHAINED_BATTERY_ATTRIBUTION_ENABLED =
11722                "chained_battery_attribution_enabled";
11723
11724        /**
11725         * The packages whitelisted to be run in autofill compatibility mode. The list
11726         * of packages is {@code ":"} colon delimited, and each entry has the name of the
11727         * package and an optional list of url bar resource ids (the list is delimited by
11728         * brackets&mdash{@code [} and {@code ]}&mdash and is also comma delimited).
11729         *
11730         * <p>For example, a list with 3 packages {@code p1}, {@code p2}, and {@code p3}, where
11731         * package {@code p1} have one id ({@code url_bar}, {@code p2} has none, and {@code p3 }
11732         * have 2 ids {@code url_foo} and {@code url_bas}) would be
11733         * {@code p1[url_bar]:p2:p3[url_foo,url_bas]}
11734         *
11735         * @hide
11736         */
11737        @SystemApi
11738        @TestApi
11739        public static final String AUTOFILL_COMPAT_MODE_ALLOWED_PACKAGES =
11740                "autofill_compat_mode_allowed_packages";
11741
11742        /**
11743         * Exemptions to the hidden API blacklist.
11744         *
11745         * @hide
11746         */
11747        @TestApi
11748        public static final String HIDDEN_API_BLACKLIST_EXEMPTIONS =
11749                "hidden_api_blacklist_exemptions";
11750
11751        /**
11752         * Sampling rate for hidden API access event logs, as an integer in the range 0 to 0x10000
11753         * inclusive.
11754         *
11755         * @hide
11756         */
11757        public static final String HIDDEN_API_ACCESS_LOG_SAMPLING_RATE =
11758                "hidden_api_access_log_sampling_rate";
11759
11760        /**
11761         * Hidden API enforcement policy for apps targeting SDK versions prior to the latest
11762         * version.
11763         *
11764         * Values correspond to @{@link
11765         * android.content.pm.ApplicationInfo.HiddenApiEnforcementPolicy}
11766         *
11767         * @hide
11768         */
11769        public static final String HIDDEN_API_POLICY_PRE_P_APPS =
11770                "hidden_api_policy_pre_p_apps";
11771
11772        /**
11773         * Hidden API enforcement policy for apps targeting the current SDK version.
11774         *
11775         * Values correspond to @{@link
11776         * android.content.pm.ApplicationInfo.HiddenApiEnforcementPolicy}
11777         *
11778         * @hide
11779         */
11780        public static final String HIDDEN_API_POLICY_P_APPS =
11781                "hidden_api_policy_p_apps";
11782
11783        /**
11784         * Timeout for a single {@link android.media.soundtrigger.SoundTriggerDetectionService}
11785         * operation (in ms).
11786         *
11787         * @hide
11788         */
11789        public static final String SOUND_TRIGGER_DETECTION_SERVICE_OP_TIMEOUT =
11790                "sound_trigger_detection_service_op_timeout";
11791
11792        /**
11793         * Maximum number of {@link android.media.soundtrigger.SoundTriggerDetectionService}
11794         * operations per day.
11795         *
11796         * @hide
11797         */
11798        public static final String MAX_SOUND_TRIGGER_DETECTION_SERVICE_OPS_PER_DAY =
11799                "max_sound_trigger_detection_service_ops_per_day";
11800
11801        /**
11802         * Settings to backup. This is here so that it's in the same place as the settings
11803         * keys and easy to update.
11804         *
11805         * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
11806         * and Secure as well.  This is because those tables drive both backup and
11807         * restore, and restore needs to properly whitelist keys that used to live
11808         * in those namespaces.  The keys will only actually be backed up / restored
11809         * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
11810         *
11811         * NOTE: Settings are backed up and restored in the order they appear
11812         *       in this array. If you have one setting depending on another,
11813         *       make sure that they are ordered appropriately.
11814         *
11815         * @hide
11816         */
11817        public static final String[] SETTINGS_TO_BACKUP = {
11818            BUGREPORT_IN_POWER_MENU,
11819            STAY_ON_WHILE_PLUGGED_IN,
11820            APP_AUTO_RESTRICTION_ENABLED,
11821            AUTO_TIME,
11822            AUTO_TIME_ZONE,
11823            POWER_SOUNDS_ENABLED,
11824            DOCK_SOUNDS_ENABLED,
11825            CHARGING_SOUNDS_ENABLED,
11826            USB_MASS_STORAGE_ENABLED,
11827            NETWORK_RECOMMENDATIONS_ENABLED,
11828            WIFI_WAKEUP_ENABLED,
11829            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
11830            WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON,
11831            USE_OPEN_WIFI_PACKAGE,
11832            WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
11833            EMERGENCY_TONE,
11834            CALL_AUTO_RETRY,
11835            DOCK_AUDIO_MEDIA_ENABLED,
11836            ENCODED_SURROUND_OUTPUT,
11837            LOW_POWER_MODE_TRIGGER_LEVEL,
11838            BLUETOOTH_ON,
11839            PRIVATE_DNS_MODE,
11840            PRIVATE_DNS_SPECIFIER,
11841            SOFT_AP_TIMEOUT_ENABLED,
11842            ZEN_DURATION,
11843        };
11844
11845        /**
11846         * All settings in {@link SETTINGS_TO_BACKUP} array *must* have a non-null validator,
11847         * otherwise they won't be restored.
11848         *
11849         * @hide
11850         */
11851        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
11852        static {
11853            VALIDATORS.put(BUGREPORT_IN_POWER_MENU, BUGREPORT_IN_POWER_MENU_VALIDATOR);
11854            VALIDATORS.put(STAY_ON_WHILE_PLUGGED_IN, STAY_ON_WHILE_PLUGGED_IN_VALIDATOR);
11855            VALIDATORS.put(AUTO_TIME, AUTO_TIME_VALIDATOR);
11856            VALIDATORS.put(AUTO_TIME_ZONE, AUTO_TIME_ZONE_VALIDATOR);
11857            VALIDATORS.put(POWER_SOUNDS_ENABLED, POWER_SOUNDS_ENABLED_VALIDATOR);
11858            VALIDATORS.put(DOCK_SOUNDS_ENABLED, DOCK_SOUNDS_ENABLED_VALIDATOR);
11859            VALIDATORS.put(CHARGING_SOUNDS_ENABLED, CHARGING_SOUNDS_ENABLED_VALIDATOR);
11860            VALIDATORS.put(USB_MASS_STORAGE_ENABLED, USB_MASS_STORAGE_ENABLED_VALIDATOR);
11861            VALIDATORS.put(NETWORK_RECOMMENDATIONS_ENABLED,
11862                    NETWORK_RECOMMENDATIONS_ENABLED_VALIDATOR);
11863            VALIDATORS.put(WIFI_WAKEUP_ENABLED, WIFI_WAKEUP_ENABLED_VALIDATOR);
11864            VALIDATORS.put(WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
11865                    WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
11866            VALIDATORS.put(USE_OPEN_WIFI_PACKAGE, USE_OPEN_WIFI_PACKAGE_VALIDATOR);
11867            VALIDATORS.put(WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
11868                    WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED_VALIDATOR);
11869            VALIDATORS.put(EMERGENCY_TONE, EMERGENCY_TONE_VALIDATOR);
11870            VALIDATORS.put(CALL_AUTO_RETRY, CALL_AUTO_RETRY_VALIDATOR);
11871            VALIDATORS.put(DOCK_AUDIO_MEDIA_ENABLED, DOCK_AUDIO_MEDIA_ENABLED_VALIDATOR);
11872            VALIDATORS.put(ENCODED_SURROUND_OUTPUT, ENCODED_SURROUND_OUTPUT_VALIDATOR);
11873            VALIDATORS.put(LOW_POWER_MODE_TRIGGER_LEVEL, LOW_POWER_MODE_TRIGGER_LEVEL_VALIDATOR);
11874            VALIDATORS.put(LOW_POWER_MODE_TRIGGER_LEVEL_MAX,
11875                    LOW_POWER_MODE_TRIGGER_LEVEL_VALIDATOR);
11876            VALIDATORS.put(BLUETOOTH_ON, BLUETOOTH_ON_VALIDATOR);
11877            VALIDATORS.put(PRIVATE_DNS_MODE, PRIVATE_DNS_MODE_VALIDATOR);
11878            VALIDATORS.put(PRIVATE_DNS_SPECIFIER, PRIVATE_DNS_SPECIFIER_VALIDATOR);
11879            VALIDATORS.put(SOFT_AP_TIMEOUT_ENABLED, SOFT_AP_TIMEOUT_ENABLED_VALIDATOR);
11880            VALIDATORS.put(WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON,
11881                    WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
11882            VALIDATORS.put(APP_AUTO_RESTRICTION_ENABLED, APP_AUTO_RESTRICTION_ENABLED_VALIDATOR);
11883            VALIDATORS.put(ZEN_DURATION, ZEN_DURATION_VALIDATOR);
11884        }
11885
11886        /**
11887         * Global settings that shouldn't be persisted.
11888         *
11889         * @hide
11890         */
11891        public static final String[] TRANSIENT_SETTINGS = {
11892                LOCATION_GLOBAL_KILL_SWITCH,
11893        };
11894
11895        /**
11896         * Keys we no longer back up under the current schema, but want to continue to
11897         * process when restoring historical backup datasets.
11898         *
11899         * All settings in {@link LEGACY_RESTORE_SETTINGS} array *must* have a non-null validator,
11900         * otherwise they won't be restored.
11901         *
11902         * @hide
11903         */
11904        public static final String[] LEGACY_RESTORE_SETTINGS = {
11905        };
11906
11907        private static final ContentProviderHolder sProviderHolder =
11908                new ContentProviderHolder(CONTENT_URI);
11909
11910        // Populated lazily, guarded by class object:
11911        private static final NameValueCache sNameValueCache = new NameValueCache(
11912                    CONTENT_URI,
11913                    CALL_METHOD_GET_GLOBAL,
11914                    CALL_METHOD_PUT_GLOBAL,
11915                    sProviderHolder);
11916
11917        // Certain settings have been moved from global to the per-user secure namespace
11918        private static final HashSet<String> MOVED_TO_SECURE;
11919        static {
11920            MOVED_TO_SECURE = new HashSet<>(1);
11921            MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
11922        }
11923
11924        /** @hide */
11925        public static void getMovedToSecureSettings(Set<String> outKeySet) {
11926            outKeySet.addAll(MOVED_TO_SECURE);
11927        }
11928
11929        /** @hide */
11930        public static void clearProviderForTest() {
11931            sProviderHolder.clearProviderForTest();
11932            sNameValueCache.clearGenerationTrackerForTest();
11933        }
11934
11935        /**
11936         * Look up a name in the database.
11937         * @param resolver to access the database with
11938         * @param name to look up in the table
11939         * @return the corresponding value, or null if not present
11940         */
11941        public static String getString(ContentResolver resolver, String name) {
11942            return getStringForUser(resolver, name, resolver.getUserId());
11943        }
11944
11945        /** @hide */
11946        public static String getStringForUser(ContentResolver resolver, String name,
11947                int userHandle) {
11948            if (MOVED_TO_SECURE.contains(name)) {
11949                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
11950                        + " to android.provider.Settings.Secure, returning read-only value.");
11951                return Secure.getStringForUser(resolver, name, userHandle);
11952            }
11953            return sNameValueCache.getStringForUser(resolver, name, userHandle);
11954        }
11955
11956        /**
11957         * Store a name/value pair into the database.
11958         * @param resolver to access the database with
11959         * @param name to store
11960         * @param value to associate with the name
11961         * @return true if the value was set, false on database errors
11962         */
11963        public static boolean putString(ContentResolver resolver,
11964                String name, String value) {
11965            return putStringForUser(resolver, name, value, null, false, resolver.getUserId());
11966        }
11967
11968        /**
11969         * Store a name/value pair into the database.
11970         * <p>
11971         * The method takes an optional tag to associate with the setting
11972         * which can be used to clear only settings made by your package and
11973         * associated with this tag by passing the tag to {@link
11974         * #resetToDefaults(ContentResolver, String)}. Anyone can override
11975         * the current tag. Also if another package changes the setting
11976         * then the tag will be set to the one specified in the set call
11977         * which can be null. Also any of the settings setters that do not
11978         * take a tag as an argument effectively clears the tag.
11979         * </p><p>
11980         * For example, if you set settings A and B with tags T1 and T2 and
11981         * another app changes setting A (potentially to the same value), it
11982         * can assign to it a tag T3 (note that now the package that changed
11983         * the setting is not yours). Now if you reset your changes for T1 and
11984         * T2 only setting B will be reset and A not (as it was changed by
11985         * another package) but since A did not change you are in the desired
11986         * initial state. Now if the other app changes the value of A (assuming
11987         * you registered an observer in the beginning) you would detect that
11988         * the setting was changed by another app and handle this appropriately
11989         * (ignore, set back to some value, etc).
11990         * </p><p>
11991         * Also the method takes an argument whether to make the value the
11992         * default for this setting. If the system already specified a default
11993         * value, then the one passed in here will <strong>not</strong>
11994         * be set as the default.
11995         * </p>
11996         *
11997         * @param resolver to access the database with.
11998         * @param name to store.
11999         * @param value to associate with the name.
12000         * @param tag to associated with the setting.
12001         * @param makeDefault whether to make the value the default one.
12002         * @return true if the value was set, false on database errors.
12003         *
12004         * @see #resetToDefaults(ContentResolver, String)
12005         *
12006         * @hide
12007         */
12008        @SystemApi
12009        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
12010        public static boolean putString(@NonNull ContentResolver resolver,
12011                @NonNull String name, @Nullable String value, @Nullable String tag,
12012                boolean makeDefault) {
12013            return putStringForUser(resolver, name, value, tag, makeDefault,
12014                    resolver.getUserId());
12015        }
12016
12017        /**
12018         * Reset the settings to their defaults. This would reset <strong>only</strong>
12019         * settings set by the caller's package. Think of it of a way to undo your own
12020         * changes to the secure settings. Passing in the optional tag will reset only
12021         * settings changed by your package and associated with this tag.
12022         *
12023         * @param resolver Handle to the content resolver.
12024         * @param tag Optional tag which should be associated with the settings to reset.
12025         *
12026         * @see #putString(ContentResolver, String, String, String, boolean)
12027         *
12028         * @hide
12029         */
12030        @SystemApi
12031        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
12032        public static void resetToDefaults(@NonNull ContentResolver resolver,
12033                @Nullable String tag) {
12034            resetToDefaultsAsUser(resolver, tag, RESET_MODE_PACKAGE_DEFAULTS,
12035                    resolver.getUserId());
12036        }
12037
12038        /**
12039         * Reset the settings to their defaults for a given user with a specific mode. The
12040         * optional tag argument is valid only for {@link #RESET_MODE_PACKAGE_DEFAULTS}
12041         * allowing resetting the settings made by a package and associated with the tag.
12042         *
12043         * @param resolver Handle to the content resolver.
12044         * @param tag Optional tag which should be associated with the settings to reset.
12045         * @param mode The reset mode.
12046         * @param userHandle The user for which to reset to defaults.
12047         *
12048         * @see #RESET_MODE_PACKAGE_DEFAULTS
12049         * @see #RESET_MODE_UNTRUSTED_DEFAULTS
12050         * @see #RESET_MODE_UNTRUSTED_CHANGES
12051         * @see #RESET_MODE_TRUSTED_DEFAULTS
12052         *
12053         * @hide
12054         */
12055        public static void resetToDefaultsAsUser(@NonNull ContentResolver resolver,
12056                @Nullable String tag, @ResetMode int mode, @IntRange(from = 0) int userHandle) {
12057            try {
12058                Bundle arg = new Bundle();
12059                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
12060                if (tag != null) {
12061                    arg.putString(CALL_METHOD_TAG_KEY, tag);
12062                }
12063                arg.putInt(CALL_METHOD_RESET_MODE_KEY, mode);
12064                IContentProvider cp = sProviderHolder.getProvider(resolver);
12065                cp.call(resolver.getPackageName(), CALL_METHOD_RESET_GLOBAL, null, arg);
12066            } catch (RemoteException e) {
12067                Log.w(TAG, "Can't reset do defaults for " + CONTENT_URI, e);
12068            }
12069        }
12070
12071        /** @hide */
12072        public static boolean putStringForUser(ContentResolver resolver,
12073                String name, String value, int userHandle) {
12074            return putStringForUser(resolver, name, value, null, false, userHandle);
12075        }
12076
12077        /** @hide */
12078        public static boolean putStringForUser(@NonNull ContentResolver resolver,
12079                @NonNull String name, @Nullable String value, @Nullable String tag,
12080                boolean makeDefault, @UserIdInt int userHandle) {
12081            if (LOCAL_LOGV) {
12082                Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
12083                        + " for " + userHandle);
12084            }
12085            // Global and Secure have the same access policy so we can forward writes
12086            if (MOVED_TO_SECURE.contains(name)) {
12087                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
12088                        + " to android.provider.Settings.Secure, value is unchanged.");
12089                return Secure.putStringForUser(resolver, name, value, tag,
12090                        makeDefault, userHandle);
12091            }
12092            return sNameValueCache.putStringForUser(resolver, name, value, tag,
12093                    makeDefault, userHandle);
12094        }
12095
12096        /**
12097         * Construct the content URI for a particular name/value pair,
12098         * useful for monitoring changes with a ContentObserver.
12099         * @param name to look up in the table
12100         * @return the corresponding content URI, or null if not present
12101         */
12102        public static Uri getUriFor(String name) {
12103            return getUriFor(CONTENT_URI, name);
12104        }
12105
12106        /**
12107         * Convenience function for retrieving a single secure settings value
12108         * as an integer.  Note that internally setting values are always
12109         * stored as strings; this function converts the string to an integer
12110         * for you.  The default value will be returned if the setting is
12111         * not defined or not an integer.
12112         *
12113         * @param cr The ContentResolver to access.
12114         * @param name The name of the setting to retrieve.
12115         * @param def Value to return if the setting is not defined.
12116         *
12117         * @return The setting's current value, or 'def' if it is not defined
12118         * or not a valid integer.
12119         */
12120        public static int getInt(ContentResolver cr, String name, int def) {
12121            String v = getString(cr, name);
12122            try {
12123                return v != null ? Integer.parseInt(v) : def;
12124            } catch (NumberFormatException e) {
12125                return def;
12126            }
12127        }
12128
12129        /**
12130         * Convenience function for retrieving a single secure settings value
12131         * as an integer.  Note that internally setting values are always
12132         * stored as strings; this function converts the string to an integer
12133         * for you.
12134         * <p>
12135         * This version does not take a default value.  If the setting has not
12136         * been set, or the string value is not a number,
12137         * it throws {@link SettingNotFoundException}.
12138         *
12139         * @param cr The ContentResolver to access.
12140         * @param name The name of the setting to retrieve.
12141         *
12142         * @throws SettingNotFoundException Thrown if a setting by the given
12143         * name can't be found or the setting value is not an integer.
12144         *
12145         * @return The setting's current value.
12146         */
12147        public static int getInt(ContentResolver cr, String name)
12148                throws SettingNotFoundException {
12149            String v = getString(cr, name);
12150            try {
12151                return Integer.parseInt(v);
12152            } catch (NumberFormatException e) {
12153                throw new SettingNotFoundException(name);
12154            }
12155        }
12156
12157        /**
12158         * Convenience function for updating a single settings value as an
12159         * integer. This will either create a new entry in the table if the
12160         * given name does not exist, or modify the value of the existing row
12161         * with that name.  Note that internally setting values are always
12162         * stored as strings, so this function converts the given value to a
12163         * string before storing it.
12164         *
12165         * @param cr The ContentResolver to access.
12166         * @param name The name of the setting to modify.
12167         * @param value The new value for the setting.
12168         * @return true if the value was set, false on database errors
12169         */
12170        public static boolean putInt(ContentResolver cr, String name, int value) {
12171            return putString(cr, name, Integer.toString(value));
12172        }
12173
12174        /**
12175         * Convenience function for retrieving a single secure settings value
12176         * as a {@code long}.  Note that internally setting values are always
12177         * stored as strings; this function converts the string to a {@code long}
12178         * for you.  The default value will be returned if the setting is
12179         * not defined or not a {@code long}.
12180         *
12181         * @param cr The ContentResolver to access.
12182         * @param name The name of the setting to retrieve.
12183         * @param def Value to return if the setting is not defined.
12184         *
12185         * @return The setting's current value, or 'def' if it is not defined
12186         * or not a valid {@code long}.
12187         */
12188        public static long getLong(ContentResolver cr, String name, long def) {
12189            String valString = getString(cr, name);
12190            long value;
12191            try {
12192                value = valString != null ? Long.parseLong(valString) : def;
12193            } catch (NumberFormatException e) {
12194                value = def;
12195            }
12196            return value;
12197        }
12198
12199        /**
12200         * Convenience function for retrieving a single secure settings value
12201         * as a {@code long}.  Note that internally setting values are always
12202         * stored as strings; this function converts the string to a {@code long}
12203         * for you.
12204         * <p>
12205         * This version does not take a default value.  If the setting has not
12206         * been set, or the string value is not a number,
12207         * it throws {@link SettingNotFoundException}.
12208         *
12209         * @param cr The ContentResolver to access.
12210         * @param name The name of the setting to retrieve.
12211         *
12212         * @return The setting's current value.
12213         * @throws SettingNotFoundException Thrown if a setting by the given
12214         * name can't be found or the setting value is not an integer.
12215         */
12216        public static long getLong(ContentResolver cr, String name)
12217                throws SettingNotFoundException {
12218            String valString = getString(cr, name);
12219            try {
12220                return Long.parseLong(valString);
12221            } catch (NumberFormatException e) {
12222                throw new SettingNotFoundException(name);
12223            }
12224        }
12225
12226        /**
12227         * Convenience function for updating a secure settings value as a long
12228         * integer. This will either create a new entry in the table if the
12229         * given name does not exist, or modify the value of the existing row
12230         * with that name.  Note that internally setting values are always
12231         * stored as strings, so this function converts the given value to a
12232         * string before storing it.
12233         *
12234         * @param cr The ContentResolver to access.
12235         * @param name The name of the setting to modify.
12236         * @param value The new value for the setting.
12237         * @return true if the value was set, false on database errors
12238         */
12239        public static boolean putLong(ContentResolver cr, String name, long value) {
12240            return putString(cr, name, Long.toString(value));
12241        }
12242
12243        /**
12244         * Convenience function for retrieving a single secure settings value
12245         * as a floating point number.  Note that internally setting values are
12246         * always stored as strings; this function converts the string to an
12247         * float for you. The default value will be returned if the setting
12248         * is not defined or not a valid float.
12249         *
12250         * @param cr The ContentResolver to access.
12251         * @param name The name of the setting to retrieve.
12252         * @param def Value to return if the setting is not defined.
12253         *
12254         * @return The setting's current value, or 'def' if it is not defined
12255         * or not a valid float.
12256         */
12257        public static float getFloat(ContentResolver cr, String name, float def) {
12258            String v = getString(cr, name);
12259            try {
12260                return v != null ? Float.parseFloat(v) : def;
12261            } catch (NumberFormatException e) {
12262                return def;
12263            }
12264        }
12265
12266        /**
12267         * Convenience function for retrieving a single secure settings value
12268         * as a float.  Note that internally setting values are always
12269         * stored as strings; this function converts the string to a float
12270         * for you.
12271         * <p>
12272         * This version does not take a default value.  If the setting has not
12273         * been set, or the string value is not a number,
12274         * it throws {@link SettingNotFoundException}.
12275         *
12276         * @param cr The ContentResolver to access.
12277         * @param name The name of the setting to retrieve.
12278         *
12279         * @throws SettingNotFoundException Thrown if a setting by the given
12280         * name can't be found or the setting value is not a float.
12281         *
12282         * @return The setting's current value.
12283         */
12284        public static float getFloat(ContentResolver cr, String name)
12285                throws SettingNotFoundException {
12286            String v = getString(cr, name);
12287            if (v == null) {
12288                throw new SettingNotFoundException(name);
12289            }
12290            try {
12291                return Float.parseFloat(v);
12292            } catch (NumberFormatException e) {
12293                throw new SettingNotFoundException(name);
12294            }
12295        }
12296
12297        /**
12298         * Convenience function for updating a single settings value as a
12299         * floating point number. This will either create a new entry in the
12300         * table if the given name does not exist, or modify the value of the
12301         * existing row with that name.  Note that internally setting values
12302         * are always stored as strings, so this function converts the given
12303         * value to a string before storing it.
12304         *
12305         * @param cr The ContentResolver to access.
12306         * @param name The name of the setting to modify.
12307         * @param value The new value for the setting.
12308         * @return true if the value was set, false on database errors
12309         */
12310        public static boolean putFloat(ContentResolver cr, String name, float value) {
12311            return putString(cr, name, Float.toString(value));
12312        }
12313
12314        /**
12315          * Subscription to be used for voice call on a multi sim device. The supported values
12316          * are 0 = SUB1, 1 = SUB2 and etc.
12317          * @hide
12318          */
12319        public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
12320
12321        /**
12322          * Used to provide option to user to select subscription during dial.
12323          * The supported values are 0 = disable or 1 = enable prompt.
12324          * @hide
12325          */
12326        public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
12327
12328        /**
12329          * Subscription to be used for data call on a multi sim device. The supported values
12330          * are 0 = SUB1, 1 = SUB2 and etc.
12331          * @hide
12332          */
12333        public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
12334
12335        /**
12336          * Subscription to be used for SMS on a multi sim device. The supported values
12337          * are 0 = SUB1, 1 = SUB2 and etc.
12338          * @hide
12339          */
12340        public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
12341
12342       /**
12343          * Used to provide option to user to select subscription during send SMS.
12344          * The value 1 - enable, 0 - disable
12345          * @hide
12346          */
12347        public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";
12348
12349        /** User preferred subscriptions setting.
12350          * This holds the details of the user selected subscription from the card and
12351          * the activation status. Each settings string have the comma separated values
12352          * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
12353          * @hide
12354         */
12355        public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
12356                "user_preferred_sub2","user_preferred_sub3"};
12357
12358        /**
12359         * Whether to enable new contacts aggregator or not.
12360         * The value 1 - enable, 0 - disable
12361         * @hide
12362         */
12363        public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";
12364
12365        /**
12366         * Whether to enable contacts metadata syncing or not
12367         * The value 1 - enable, 0 - disable
12368         *
12369         * @removed
12370         */
12371        @Deprecated
12372        public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";
12373
12374        /**
12375         * Whether to enable contacts metadata syncing or not
12376         * The value 1 - enable, 0 - disable
12377         */
12378        public static final String CONTACT_METADATA_SYNC_ENABLED = "contact_metadata_sync_enabled";
12379
12380        /**
12381         * Whether to enable cellular on boot.
12382         * The value 1 - enable, 0 - disable
12383         * @hide
12384         */
12385        public static final String ENABLE_CELLULAR_ON_BOOT = "enable_cellular_on_boot";
12386
12387        /**
12388         * The maximum allowed notification enqueue rate in Hertz.
12389         *
12390         * Should be a float, and includes updates only.
12391         * @hide
12392         */
12393        public static final String MAX_NOTIFICATION_ENQUEUE_RATE = "max_notification_enqueue_rate";
12394
12395        /**
12396         * Displays toasts when an app posts a notification that does not specify a valid channel.
12397         *
12398         * The value 1 - enable, 0 - disable
12399         * @hide
12400         */
12401        public static final String SHOW_NOTIFICATION_CHANNEL_WARNINGS =
12402                "show_notification_channel_warnings";
12403
12404        /**
12405         * Whether cell is enabled/disabled
12406         * @hide
12407         */
12408        public static final String CELL_ON = "cell_on";
12409
12410        /**
12411         * Global settings which can be accessed by instant apps.
12412         * @hide
12413         */
12414        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
12415        static {
12416            INSTANT_APP_SETTINGS.add(WAIT_FOR_DEBUGGER);
12417            INSTANT_APP_SETTINGS.add(DEVICE_PROVISIONED);
12418            INSTANT_APP_SETTINGS.add(DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES);
12419            INSTANT_APP_SETTINGS.add(DEVELOPMENT_FORCE_RTL);
12420            INSTANT_APP_SETTINGS.add(EPHEMERAL_COOKIE_MAX_SIZE_BYTES);
12421            INSTANT_APP_SETTINGS.add(AIRPLANE_MODE_ON);
12422            INSTANT_APP_SETTINGS.add(WINDOW_ANIMATION_SCALE);
12423            INSTANT_APP_SETTINGS.add(TRANSITION_ANIMATION_SCALE);
12424            INSTANT_APP_SETTINGS.add(ANIMATOR_DURATION_SCALE);
12425            INSTANT_APP_SETTINGS.add(DEBUG_VIEW_ATTRIBUTES);
12426            INSTANT_APP_SETTINGS.add(WTF_IS_FATAL);
12427            INSTANT_APP_SETTINGS.add(SEND_ACTION_APP_ERROR);
12428            INSTANT_APP_SETTINGS.add(ZEN_MODE);
12429        }
12430
12431        /**
12432         * Whether to show the high temperature warning notification.
12433         * @hide
12434         */
12435        public static final String SHOW_TEMPERATURE_WARNING = "show_temperature_warning";
12436
12437        /**
12438         * Temperature at which the high temperature warning notification should be shown.
12439         * @hide
12440         */
12441        public static final String WARNING_TEMPERATURE = "warning_temperature";
12442
12443        /**
12444         * Whether the diskstats logging task is enabled/disabled.
12445         * @hide
12446         */
12447        public static final String ENABLE_DISKSTATS_LOGGING = "enable_diskstats_logging";
12448
12449        /**
12450         * Whether the cache quota calculation task is enabled/disabled.
12451         * @hide
12452         */
12453        public static final String ENABLE_CACHE_QUOTA_CALCULATION =
12454                "enable_cache_quota_calculation";
12455
12456        /**
12457         * Whether the Deletion Helper no threshold toggle is available.
12458         * @hide
12459         */
12460        public static final String ENABLE_DELETION_HELPER_NO_THRESHOLD_TOGGLE =
12461                "enable_deletion_helper_no_threshold_toggle";
12462
12463        /**
12464         * The list of snooze options for notifications
12465         * This is encoded as a key=value list, separated by commas. Ex:
12466         *
12467         * "default=60,options_array=15:30:60:120"
12468         *
12469         * The following keys are supported:
12470         *
12471         * <pre>
12472         * default               (int)
12473         * options_array         (int[])
12474         * </pre>
12475         *
12476         * All delays in integer minutes. Array order is respected.
12477         * Options will be used in order up to the maximum allowed by the UI.
12478         * @hide
12479         */
12480        public static final String NOTIFICATION_SNOOZE_OPTIONS =
12481                "notification_snooze_options";
12482
12483        /**
12484         * Configuration flags for SQLite Compatibility WAL. Encoded as a key-value list, separated
12485         * by commas. E.g.: compatibility_wal_supported=true, wal_syncmode=OFF
12486         *
12487         * Supported keys:
12488         * compatibility_wal_supported      (boolean)
12489         * wal_syncmode       (String)
12490         *
12491         * @hide
12492         */
12493        public static final String SQLITE_COMPATIBILITY_WAL_FLAGS =
12494                "sqlite_compatibility_wal_flags";
12495
12496        /**
12497         * Enable GNSS Raw Measurements Full Tracking?
12498         * 0 = no
12499         * 1 = yes
12500         * @hide
12501         */
12502        public static final String ENABLE_GNSS_RAW_MEAS_FULL_TRACKING =
12503                "enable_gnss_raw_meas_full_tracking";
12504
12505        /**
12506         * Whether the notification should be ongoing (persistent) when a carrier app install is
12507         * required.
12508         *
12509         * The value is a boolean (1 or 0).
12510         * @hide
12511         */
12512        @SystemApi
12513        public static final String INSTALL_CARRIER_APP_NOTIFICATION_PERSISTENT =
12514                "install_carrier_app_notification_persistent";
12515
12516        /**
12517         * The amount of time (ms) to hide the install carrier app notification after the user has
12518         * ignored it. After this time passes, the notification will be shown again
12519         *
12520         * The value is a long
12521         * @hide
12522         */
12523        @SystemApi
12524        public static final String INSTALL_CARRIER_APP_NOTIFICATION_SLEEP_MILLIS =
12525                "install_carrier_app_notification_sleep_millis";
12526
12527        /**
12528         * Whether we've enabled zram on this device. Takes effect on
12529         * reboot. The value "1" enables zram; "0" disables it, and
12530         * everything else is unspecified.
12531         * @hide
12532         */
12533        public static final String ZRAM_ENABLED =
12534                "zram_enabled";
12535
12536        /**
12537         * Whether we have enable CPU frequency scaling for this device.
12538         * For Wear, default is disable.
12539         *
12540         * The value is "1" for enable, "0" for disable.
12541         * @hide
12542         */
12543        public static final String CPU_SCALING_ENABLED =
12544                "cpu_frequency_scaling_enabled";
12545
12546        /**
12547         * Configuration flags for smart replies in notifications.
12548         * This is encoded as a key=value list, separated by commas. Ex:
12549         *
12550         * "enabled=1,max_squeeze_remeasure_count=3"
12551         *
12552         * The following keys are supported:
12553         *
12554         * <pre>
12555         * enabled                         (boolean)
12556         * requires_targeting_p            (boolean)
12557         * max_squeeze_remeasure_attempts  (int)
12558         * </pre>
12559         * @see com.android.systemui.statusbar.policy.SmartReplyConstants
12560         * @hide
12561         */
12562        public static final String SMART_REPLIES_IN_NOTIFICATIONS_FLAGS =
12563                "smart_replies_in_notifications_flags";
12564
12565        /**
12566         * If nonzero, crashes in foreground processes will bring up a dialog.
12567         * Otherwise, the process will be silently killed.
12568         * @hide
12569         */
12570        public static final String SHOW_FIRST_CRASH_DIALOG = "show_first_crash_dialog";
12571
12572        /**
12573         * If nonzero, crash dialogs will show an option to restart the app.
12574         * @hide
12575         */
12576        public static final String SHOW_RESTART_IN_CRASH_DIALOG = "show_restart_in_crash_dialog";
12577
12578        /**
12579         * If nonzero, crash dialogs will show an option to mute all future crash dialogs for
12580         * this app.
12581         * @hide
12582         */
12583        public static final String SHOW_MUTE_IN_CRASH_DIALOG = "show_mute_in_crash_dialog";
12584
12585        /**
12586         * If nonzero, will show the zen upgrade notification when the user toggles DND on/off.
12587         * @hide
12588         */
12589        public static final String SHOW_ZEN_UPGRADE_NOTIFICATION = "show_zen_upgrade_notification";
12590
12591        /**
12592         * Backup and restore agent timeout parameters.
12593         * These parameters are represented by a comma-delimited key-value list.
12594         *
12595         * The following strings are supported as keys:
12596         * <pre>
12597         *     kv_backup_agent_timeout_millis         (long)
12598         *     full_backup_agent_timeout_millis       (long)
12599         *     shared_backup_agent_timeout_millis     (long)
12600         *     restore_agent_timeout_millis           (long)
12601         *     restore_agent_finished_timeout_millis  (long)
12602         * </pre>
12603         *
12604         * They map to milliseconds represented as longs.
12605         *
12606         * Ex: "kv_backup_agent_timeout_millis=30000,full_backup_agent_timeout_millis=300000"
12607         *
12608         * @hide
12609         */
12610        public static final String BACKUP_AGENT_TIMEOUT_PARAMETERS =
12611                "backup_agent_timeout_parameters";
12612
12613        /**
12614         * Whether we have enabled swapping on this device. For Wear, default is
12615         * enabled.
12616         *
12617         * The value is "1" for enable, "0" for disable.
12618         * @hide
12619         */
12620         public static final String SWAP_ENABLED = "swap_enabled";
12621
12622        /**
12623         * Blacklist of GNSS satellites.
12624         *
12625         * This is a list of integers separated by commas to represent pairs of (constellation,
12626         * svid). Thus, the number of integers should be even.
12627         *
12628         * E.g.: "3,0,5,24" denotes (constellation=3, svid=0) and (constellation=5, svid=24) are
12629         * blacklisted. Note that svid=0 denotes all svids in the
12630         * constellation are blacklisted.
12631         *
12632         * @hide
12633         */
12634        public static final String GNSS_SATELLITE_BLACKLIST = "gnss_satellite_blacklist";
12635    }
12636
12637    /**
12638     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
12639     * Intent URL, allowing it to be either a web page or a particular
12640     * application activity.
12641     *
12642     * @hide
12643     */
12644    public static final class Bookmarks implements BaseColumns
12645    {
12646        private static final String TAG = "Bookmarks";
12647
12648        /**
12649         * The content:// style URL for this table
12650         */
12651        public static final Uri CONTENT_URI =
12652            Uri.parse("content://" + AUTHORITY + "/bookmarks");
12653
12654        /**
12655         * The row ID.
12656         * <p>Type: INTEGER</p>
12657         */
12658        public static final String ID = "_id";
12659
12660        /**
12661         * Descriptive name of the bookmark that can be displayed to the user.
12662         * If this is empty, the title should be resolved at display time (use
12663         * {@link #getTitle(Context, Cursor)} any time you want to display the
12664         * title of a bookmark.)
12665         * <P>
12666         * Type: TEXT
12667         * </P>
12668         */
12669        public static final String TITLE = "title";
12670
12671        /**
12672         * Arbitrary string (displayed to the user) that allows bookmarks to be
12673         * organized into categories.  There are some special names for
12674         * standard folders, which all start with '@'.  The label displayed for
12675         * the folder changes with the locale (via {@link #getLabelForFolder}) but
12676         * the folder name does not change so you can consistently query for
12677         * the folder regardless of the current locale.
12678         *
12679         * <P>Type: TEXT</P>
12680         *
12681         */
12682        public static final String FOLDER = "folder";
12683
12684        /**
12685         * The Intent URL of the bookmark, describing what it points to.  This
12686         * value is given to {@link android.content.Intent#getIntent} to create
12687         * an Intent that can be launched.
12688         * <P>Type: TEXT</P>
12689         */
12690        public static final String INTENT = "intent";
12691
12692        /**
12693         * Optional shortcut character associated with this bookmark.
12694         * <P>Type: INTEGER</P>
12695         */
12696        public static final String SHORTCUT = "shortcut";
12697
12698        /**
12699         * The order in which the bookmark should be displayed
12700         * <P>Type: INTEGER</P>
12701         */
12702        public static final String ORDERING = "ordering";
12703
12704        private static final String[] sIntentProjection = { INTENT };
12705        private static final String[] sShortcutProjection = { ID, SHORTCUT };
12706        private static final String sShortcutSelection = SHORTCUT + "=?";
12707
12708        /**
12709         * Convenience function to retrieve the bookmarked Intent for a
12710         * particular shortcut key.
12711         *
12712         * @param cr The ContentResolver to query.
12713         * @param shortcut The shortcut key.
12714         *
12715         * @return Intent The bookmarked URL, or null if there is no bookmark
12716         *         matching the given shortcut.
12717         */
12718        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
12719        {
12720            Intent intent = null;
12721
12722            Cursor c = cr.query(CONTENT_URI,
12723                    sIntentProjection, sShortcutSelection,
12724                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
12725            // Keep trying until we find a valid shortcut
12726            try {
12727                while (intent == null && c.moveToNext()) {
12728                    try {
12729                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
12730                        intent = Intent.parseUri(intentURI, 0);
12731                    } catch (java.net.URISyntaxException e) {
12732                        // The stored URL is bad...  ignore it.
12733                    } catch (IllegalArgumentException e) {
12734                        // Column not found
12735                        Log.w(TAG, "Intent column not found", e);
12736                    }
12737                }
12738            } finally {
12739                if (c != null) c.close();
12740            }
12741
12742            return intent;
12743        }
12744
12745        /**
12746         * Add a new bookmark to the system.
12747         *
12748         * @param cr The ContentResolver to query.
12749         * @param intent The desired target of the bookmark.
12750         * @param title Bookmark title that is shown to the user; null if none
12751         *            or it should be resolved to the intent's title.
12752         * @param folder Folder in which to place the bookmark; null if none.
12753         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
12754         *            this is non-zero and there is an existing bookmark entry
12755         *            with this same shortcut, then that existing shortcut is
12756         *            cleared (the bookmark is not removed).
12757         * @return The unique content URL for the new bookmark entry.
12758         */
12759        public static Uri add(ContentResolver cr,
12760                                           Intent intent,
12761                                           String title,
12762                                           String folder,
12763                                           char shortcut,
12764                                           int ordering)
12765        {
12766            // If a shortcut is supplied, and it is already defined for
12767            // another bookmark, then remove the old definition.
12768            if (shortcut != 0) {
12769                cr.delete(CONTENT_URI, sShortcutSelection,
12770                        new String[] { String.valueOf((int) shortcut) });
12771            }
12772
12773            ContentValues values = new ContentValues();
12774            if (title != null) values.put(TITLE, title);
12775            if (folder != null) values.put(FOLDER, folder);
12776            values.put(INTENT, intent.toUri(0));
12777            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
12778            values.put(ORDERING, ordering);
12779            return cr.insert(CONTENT_URI, values);
12780        }
12781
12782        /**
12783         * Return the folder name as it should be displayed to the user.  This
12784         * takes care of localizing special folders.
12785         *
12786         * @param r Resources object for current locale; only need access to
12787         *          system resources.
12788         * @param folder The value found in the {@link #FOLDER} column.
12789         *
12790         * @return CharSequence The label for this folder that should be shown
12791         *         to the user.
12792         */
12793        public static CharSequence getLabelForFolder(Resources r, String folder) {
12794            return folder;
12795        }
12796
12797        /**
12798         * Return the title as it should be displayed to the user. This takes
12799         * care of localizing bookmarks that point to activities.
12800         *
12801         * @param context A context.
12802         * @param cursor A cursor pointing to the row whose title should be
12803         *        returned. The cursor must contain at least the {@link #TITLE}
12804         *        and {@link #INTENT} columns.
12805         * @return A title that is localized and can be displayed to the user,
12806         *         or the empty string if one could not be found.
12807         */
12808        public static CharSequence getTitle(Context context, Cursor cursor) {
12809            int titleColumn = cursor.getColumnIndex(TITLE);
12810            int intentColumn = cursor.getColumnIndex(INTENT);
12811            if (titleColumn == -1 || intentColumn == -1) {
12812                throw new IllegalArgumentException(
12813                        "The cursor must contain the TITLE and INTENT columns.");
12814            }
12815
12816            String title = cursor.getString(titleColumn);
12817            if (!TextUtils.isEmpty(title)) {
12818                return title;
12819            }
12820
12821            String intentUri = cursor.getString(intentColumn);
12822            if (TextUtils.isEmpty(intentUri)) {
12823                return "";
12824            }
12825
12826            Intent intent;
12827            try {
12828                intent = Intent.parseUri(intentUri, 0);
12829            } catch (URISyntaxException e) {
12830                return "";
12831            }
12832
12833            PackageManager packageManager = context.getPackageManager();
12834            ResolveInfo info = packageManager.resolveActivity(intent, 0);
12835            return info != null ? info.loadLabel(packageManager) : "";
12836        }
12837    }
12838
12839    /**
12840     * Returns the device ID that we should use when connecting to the mobile gtalk server.
12841     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
12842     * from the GoogleLoginService.
12843     *
12844     * @param androidId The Android ID for this device.
12845     * @return The device ID that should be used when connecting to the mobile gtalk server.
12846     * @hide
12847     */
12848    public static String getGTalkDeviceId(long androidId) {
12849        return "android-" + Long.toHexString(androidId);
12850    }
12851
12852    private static final String[] PM_WRITE_SETTINGS = {
12853        android.Manifest.permission.WRITE_SETTINGS
12854    };
12855    private static final String[] PM_CHANGE_NETWORK_STATE = {
12856        android.Manifest.permission.CHANGE_NETWORK_STATE,
12857        android.Manifest.permission.WRITE_SETTINGS
12858    };
12859    private static final String[] PM_SYSTEM_ALERT_WINDOW = {
12860        android.Manifest.permission.SYSTEM_ALERT_WINDOW
12861    };
12862
12863    /**
12864     * Performs a strict and comprehensive check of whether a calling package is allowed to
12865     * write/modify system settings, as the condition differs for pre-M, M+, and
12866     * privileged/preinstalled apps. If the provided uid does not match the
12867     * callingPackage, a negative result will be returned.
12868     * @hide
12869     */
12870    public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
12871            String callingPackage, boolean throwException) {
12872        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
12873                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
12874                PM_WRITE_SETTINGS, false);
12875    }
12876
12877    /**
12878     * Performs a strict and comprehensive check of whether a calling package is allowed to
12879     * write/modify system settings, as the condition differs for pre-M, M+, and
12880     * privileged/preinstalled apps. If the provided uid does not match the
12881     * callingPackage, a negative result will be returned. The caller is expected to have
12882     * the WRITE_SETTINGS permission declared.
12883     *
12884     * Note: if the check is successful, the operation of this app will be updated to the
12885     * current time.
12886     * @hide
12887     */
12888    public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
12889            String callingPackage, boolean throwException) {
12890        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
12891                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
12892                PM_WRITE_SETTINGS, true);
12893    }
12894
12895    /**
12896     * Performs a strict and comprehensive check of whether a calling package is allowed to
12897     * change the state of network, as the condition differs for pre-M, M+, and
12898     * privileged/preinstalled apps. The caller is expected to have either the
12899     * CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
12900     * permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
12901     * can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
12902     * permission and cannot be revoked. See http://b/23597341
12903     *
12904     * Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
12905     * of this app will be updated to the current time.
12906     * @hide
12907     */
12908    public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
12909            String callingPackage, boolean throwException) {
12910        if (context.checkCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE)
12911                == PackageManager.PERMISSION_GRANTED) {
12912            return true;
12913        }
12914        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
12915                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
12916                PM_CHANGE_NETWORK_STATE, true);
12917    }
12918
12919    /**
12920     * Performs a strict and comprehensive check of whether a calling package is allowed to
12921     * draw on top of other apps, as the conditions differs for pre-M, M+, and
12922     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
12923     * a negative result will be returned.
12924     * @hide
12925     */
12926    public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
12927            String callingPackage, boolean throwException) {
12928        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
12929                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
12930                PM_SYSTEM_ALERT_WINDOW, false);
12931    }
12932
12933    /**
12934     * Performs a strict and comprehensive check of whether a calling package is allowed to
12935     * draw on top of other apps, as the conditions differs for pre-M, M+, and
12936     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
12937     * a negative result will be returned.
12938     *
12939     * Note: if the check is successful, the operation of this app will be updated to the
12940     * current time.
12941     * @hide
12942     */
12943    public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
12944            callingPackage, boolean throwException) {
12945        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
12946                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
12947                PM_SYSTEM_ALERT_WINDOW, true);
12948    }
12949
12950    /**
12951     * Helper method to perform a general and comprehensive check of whether an operation that is
12952     * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
12953     * OP_WRITE_SETTINGS
12954     * @hide
12955     */
12956    public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
12957            int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
12958            permissions, boolean makeNote) {
12959        if (callingPackage == null) {
12960            return false;
12961        }
12962
12963        AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
12964        int mode = AppOpsManager.MODE_DEFAULT;
12965        if (makeNote) {
12966            mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
12967        } else {
12968            mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
12969        }
12970
12971        switch (mode) {
12972            case AppOpsManager.MODE_ALLOWED:
12973                return true;
12974
12975            case AppOpsManager.MODE_DEFAULT:
12976                // this is the default operating mode after an app's installation
12977                // In this case we will check all associated static permission to see
12978                // if it is granted during install time.
12979                for (String permission : permissions) {
12980                    if (context.checkCallingOrSelfPermission(permission) == PackageManager
12981                            .PERMISSION_GRANTED) {
12982                        // if either of the permissions are granted, we will allow it
12983                        return true;
12984                    }
12985                }
12986
12987            default:
12988                // this is for all other cases trickled down here...
12989                if (!throwException) {
12990                    return false;
12991                }
12992        }
12993
12994        // prepare string to throw SecurityException
12995        StringBuilder exceptionMessage = new StringBuilder();
12996        exceptionMessage.append(callingPackage);
12997        exceptionMessage.append(" was not granted ");
12998        if (permissions.length > 1) {
12999            exceptionMessage.append(" either of these permissions: ");
13000        } else {
13001            exceptionMessage.append(" this permission: ");
13002        }
13003        for (int i = 0; i < permissions.length; i++) {
13004            exceptionMessage.append(permissions[i]);
13005            exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
13006        }
13007
13008        throw new SecurityException(exceptionMessage.toString());
13009    }
13010
13011    /**
13012     * Retrieves a correponding package name for a given uid. It will query all
13013     * packages that are associated with the given uid, but it will return only
13014     * the zeroth result.
13015     * Note: If package could not be found, a null is returned.
13016     * @hide
13017     */
13018    public static String getPackageNameForUid(Context context, int uid) {
13019        String[] packages = context.getPackageManager().getPackagesForUid(uid);
13020        if (packages == null) {
13021            return null;
13022        }
13023        return packages[0];
13024    }
13025}
13026