Settings.java revision 582fae1cf46dfe3ea63e1ba1123575467c70a221
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 android.Manifest;
20import android.annotation.IntDef;
21import android.annotation.IntRange;
22import android.annotation.NonNull;
23import android.annotation.Nullable;
24import android.annotation.RequiresPermission;
25import android.annotation.SdkConstant;
26import android.annotation.SdkConstant.SdkConstantType;
27import android.annotation.SystemApi;
28import android.annotation.TestApi;
29import android.annotation.UserIdInt;
30import android.app.ActivityThread;
31import android.app.AppOpsManager;
32import android.app.Application;
33import android.app.NotificationChannel;
34import android.app.SearchManager;
35import android.app.WallpaperManager;
36import android.content.ComponentName;
37import android.content.ContentResolver;
38import android.content.ContentValues;
39import android.content.Context;
40import android.content.IContentProvider;
41import android.content.Intent;
42import android.content.pm.ActivityInfo;
43import android.content.pm.PackageManager;
44import android.content.pm.ResolveInfo;
45import android.content.res.Configuration;
46import android.content.res.Resources;
47import android.database.Cursor;
48import android.database.SQLException;
49import android.location.LocationManager;
50import android.net.ConnectivityManager;
51import android.net.NetworkScoreManager;
52import android.net.Uri;
53import android.net.wifi.WifiManager;
54import android.os.BatteryManager;
55import android.os.Binder;
56import android.os.Build.VERSION_CODES;
57import android.os.Bundle;
58import android.os.DropBoxManager;
59import android.os.IBinder;
60import android.os.LocaleList;
61import android.os.Process;
62import android.os.RemoteException;
63import android.os.ResultReceiver;
64import android.os.ServiceManager;
65import android.os.UserHandle;
66import android.speech.tts.TextToSpeech;
67import android.text.TextUtils;
68import android.util.AndroidException;
69import android.util.ArrayMap;
70import android.util.ArraySet;
71import android.util.Log;
72import android.util.MemoryIntArray;
73
74import com.android.internal.annotations.GuardedBy;
75import com.android.internal.util.ArrayUtils;
76import com.android.internal.widget.ILockSettings;
77
78import java.io.IOException;
79import java.lang.annotation.Retention;
80import java.lang.annotation.RetentionPolicy;
81import java.net.URISyntaxException;
82import java.text.SimpleDateFormat;
83import java.util.HashMap;
84import java.util.HashSet;
85import java.util.Locale;
86import java.util.Map;
87import java.util.Set;
88
89/**
90 * The Settings provider contains global system-level device preferences.
91 */
92public final class Settings {
93
94    // Intent actions for Settings
95
96    /**
97     * Activity Action: Show system settings.
98     * <p>
99     * Input: Nothing.
100     * <p>
101     * Output: Nothing.
102     */
103    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
104    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
105
106    /**
107     * Activity Action: Show settings to allow configuration of APNs.
108     * <p>
109     * Input: Nothing.
110     * <p>
111     * Output: Nothing.
112     */
113    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
114    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
115
116    /**
117     * Activity Action: Show settings to allow configuration of current location
118     * sources.
119     * <p>
120     * In some cases, a matching Activity may not exist, so ensure you
121     * safeguard against this.
122     * <p>
123     * Input: Nothing.
124     * <p>
125     * Output: Nothing.
126     */
127    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
128    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
129            "android.settings.LOCATION_SOURCE_SETTINGS";
130
131    /**
132     * Activity Action: Show settings to allow configuration of users.
133     * <p>
134     * In some cases, a matching Activity may not exist, so ensure you
135     * safeguard against this.
136     * <p>
137     * Input: Nothing.
138     * <p>
139     * Output: Nothing.
140     * @hide
141     */
142    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
143    public static final String ACTION_USER_SETTINGS =
144            "android.settings.USER_SETTINGS";
145
146    /**
147     * Activity Action: Show settings to allow configuration of wireless controls
148     * such as Wi-Fi, Bluetooth and Mobile networks.
149     * <p>
150     * In some cases, a matching Activity may not exist, so ensure you
151     * safeguard against this.
152     * <p>
153     * Input: Nothing.
154     * <p>
155     * Output: Nothing.
156     */
157    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
158    public static final String ACTION_WIRELESS_SETTINGS =
159            "android.settings.WIRELESS_SETTINGS";
160
161    /**
162     * Activity Action: Show tether provisioning activity.
163     *
164     * <p>
165     * In some cases, a matching Activity may not exist, so ensure you
166     * safeguard against this.
167     * <p>
168     * Input: {@link ConnectivityManager#EXTRA_TETHER_TYPE} should be included to specify which type
169     * of tethering should be checked. {@link ConnectivityManager#EXTRA_PROVISION_CALLBACK} should
170     * contain a {@link ResultReceiver} which will be called back with a tether result code.
171     * <p>
172     * Output: The result of the provisioning check.
173     * {@link ConnectivityManager#TETHER_ERROR_NO_ERROR} if successful,
174     * {@link ConnectivityManager#TETHER_ERROR_PROVISION_FAILED} for failure.
175     *
176     * @hide
177     */
178    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
179    public static final String ACTION_TETHER_PROVISIONING =
180            "android.settings.TETHER_PROVISIONING_UI";
181
182    /**
183     * Activity Action: Show settings to allow entering/exiting airplane mode.
184     * <p>
185     * In some cases, a matching Activity may not exist, so ensure you
186     * safeguard against this.
187     * <p>
188     * Input: Nothing.
189     * <p>
190     * Output: Nothing.
191     */
192    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
193    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
194            "android.settings.AIRPLANE_MODE_SETTINGS";
195
196    /**
197     * Activity Action: Modify Airplane mode settings using a voice command.
198     * <p>
199     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
200     * <p>
201     * This intent MUST be started using
202     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
203     * startVoiceActivity}.
204     * <p>
205     * Note: The activity implementing this intent MUST verify that
206     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
207     * modifying the setting.
208     * <p>
209     * Input: To tell which state airplane mode should be set to, add the
210     * {@link #EXTRA_AIRPLANE_MODE_ENABLED} extra to this Intent with the state specified.
211     * If the extra is not included, no changes will be made.
212     * <p>
213     * Output: Nothing.
214     */
215    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
216    public static final String ACTION_VOICE_CONTROL_AIRPLANE_MODE =
217            "android.settings.VOICE_CONTROL_AIRPLANE_MODE";
218
219    /**
220     * Activity Action: Show settings for accessibility modules.
221     * <p>
222     * In some cases, a matching Activity may not exist, so ensure you
223     * safeguard against this.
224     * <p>
225     * Input: Nothing.
226     * <p>
227     * Output: Nothing.
228     */
229    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
230    public static final String ACTION_ACCESSIBILITY_SETTINGS =
231            "android.settings.ACCESSIBILITY_SETTINGS";
232
233    /**
234     * Activity Action: Show settings to control access to usage information.
235     * <p>
236     * In some cases, a matching Activity may not exist, so ensure you
237     * safeguard against this.
238     * <p>
239     * Input: Nothing.
240     * <p>
241     * Output: Nothing.
242     */
243    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
244    public static final String ACTION_USAGE_ACCESS_SETTINGS =
245            "android.settings.USAGE_ACCESS_SETTINGS";
246
247    /**
248     * Activity Category: Show application settings related to usage access.
249     * <p>
250     * An activity that provides a user interface for adjusting usage access related
251     * preferences for its containing application. Optional but recommended for apps that
252     * use {@link android.Manifest.permission#PACKAGE_USAGE_STATS}.
253     * <p>
254     * The activity may define meta-data to describe what usage access is
255     * used for within their app with {@link #METADATA_USAGE_ACCESS_REASON}, which
256     * will be displayed in Settings.
257     * <p>
258     * Input: Nothing.
259     * <p>
260     * Output: Nothing.
261     */
262    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
263    public static final String INTENT_CATEGORY_USAGE_ACCESS_CONFIG =
264            "android.intent.category.USAGE_ACCESS_CONFIG";
265
266    /**
267     * Metadata key: Reason for needing usage access.
268     * <p>
269     * A key for metadata attached to an activity that receives action
270     * {@link #INTENT_CATEGORY_USAGE_ACCESS_CONFIG}, shown to the
271     * user as description of how the app uses usage access.
272     * <p>
273     */
274    public static final String METADATA_USAGE_ACCESS_REASON =
275            "android.settings.metadata.USAGE_ACCESS_REASON";
276
277    /**
278     * Activity Action: Show settings to allow configuration of security and
279     * location privacy.
280     * <p>
281     * In some cases, a matching Activity may not exist, so ensure you
282     * safeguard against this.
283     * <p>
284     * Input: Nothing.
285     * <p>
286     * Output: Nothing.
287     */
288    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
289    public static final String ACTION_SECURITY_SETTINGS =
290            "android.settings.SECURITY_SETTINGS";
291
292    /**
293     * Activity Action: Show settings to allow configuration of trusted external sources
294     * <p>
295     * In some cases, a matching Activity may not exist, so ensure you
296     * safeguard against this.
297     * <p>
298     * Input: Optionally, the Intent's data URI can specify the application package name to
299     * directly invoke the management GUI specific to the package name. For example
300     * "package:com.my.app".
301     * <p>
302     * Output: Nothing.
303     */
304    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
305    public static final String ACTION_MANAGE_EXTERNAL_SOURCES =
306            "android.settings.action.MANAGE_EXTERNAL_SOURCES";
307
308    /**
309     * Activity Action: Show trusted credentials settings, opening to the user tab,
310     * to allow management of installed credentials.
311     * <p>
312     * In some cases, a matching Activity may not exist, so ensure you
313     * safeguard against this.
314     * <p>
315     * Input: Nothing.
316     * <p>
317     * Output: Nothing.
318     * @hide
319     */
320    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
321    public static final String ACTION_TRUSTED_CREDENTIALS_USER =
322            "com.android.settings.TRUSTED_CREDENTIALS_USER";
323
324    /**
325     * Activity Action: Show dialog explaining that an installed CA cert may enable
326     * monitoring of encrypted network traffic.
327     * <p>
328     * In some cases, a matching Activity may not exist, so ensure you
329     * safeguard against this. Add {@link #EXTRA_NUMBER_OF_CERTIFICATES} extra to indicate the
330     * number of certificates.
331     * <p>
332     * Input: Nothing.
333     * <p>
334     * Output: Nothing.
335     * @hide
336     */
337    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
338    public static final String ACTION_MONITORING_CERT_INFO =
339            "com.android.settings.MONITORING_CERT_INFO";
340
341    /**
342     * Activity Action: Show settings to allow configuration of privacy options.
343     * <p>
344     * In some cases, a matching Activity may not exist, so ensure you
345     * safeguard against this.
346     * <p>
347     * Input: Nothing.
348     * <p>
349     * Output: Nothing.
350     */
351    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
352    public static final String ACTION_PRIVACY_SETTINGS =
353            "android.settings.PRIVACY_SETTINGS";
354
355    /**
356     * Activity Action: Show settings to allow configuration of VPN.
357     * <p>
358     * In some cases, a matching Activity may not exist, so ensure you
359     * safeguard against this.
360     * <p>
361     * Input: Nothing.
362     * <p>
363     * Output: Nothing.
364     */
365    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
366    public static final String ACTION_VPN_SETTINGS =
367            "android.settings.VPN_SETTINGS";
368
369    /**
370     * Activity Action: Show settings to allow configuration of Wi-Fi.
371     * <p>
372     * In some cases, a matching Activity may not exist, so ensure you
373     * safeguard against this.
374     * <p>
375     * Input: Nothing.
376     * <p>
377     * Output: Nothing.
378     */
379    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
380    public static final String ACTION_WIFI_SETTINGS =
381            "android.settings.WIFI_SETTINGS";
382
383    /**
384     * Activity Action: Show settings to allow configuration of a static IP
385     * address for Wi-Fi.
386     * <p>
387     * In some cases, a matching Activity may not exist, so ensure you safeguard
388     * against this.
389     * <p>
390     * Input: Nothing.
391     * <p>
392     * Output: Nothing.
393     */
394    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
395    public static final String ACTION_WIFI_IP_SETTINGS =
396            "android.settings.WIFI_IP_SETTINGS";
397
398    /**
399     * Activity Action: Show settings to allow the configuration of Wi-Fi features.
400     * <p>
401     * In some cases, a matching Activity may not exist, so ensure you
402     * safeguard against this.
403     * <p>
404     * Input: Nothing.
405     * <p>
406     * Output: Nothing.
407     * @hide
408     */
409    @SystemApi
410    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
411    public static final String ACTION_CONFIGURE_WIFI_SETTINGS =
412            "android.settings.CONFIGURE_WIFI_SETTINGS";
413
414    /**
415     * Activity Action: Show settings to allow configuration of Wi-Fi saved networks.
416     * <p>
417     * In some cases, a matching Activity may not exist, so ensure you
418     * safeguard against this.
419     * <p>
420     * Input: Nothing.
421     * <p>
422     * Output: Nothing.
423     * @hide
424     */
425    @SystemApi
426    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
427    public static final String ACTION_WIFI_SAVED_NETWORK_SETTINGS =
428            "android.settings.WIFI_SAVED_NETWORK_SETTINGS";
429
430    /**
431     * Activity Action: Show settings to allow configuration of Bluetooth.
432     * <p>
433     * In some cases, a matching Activity may not exist, so ensure you
434     * safeguard against this.
435     * <p>
436     * Input: Nothing.
437     * <p>
438     * Output: Nothing.
439     */
440    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
441    public static final String ACTION_BLUETOOTH_SETTINGS =
442            "android.settings.BLUETOOTH_SETTINGS";
443
444    /**
445     * Activity Action: Show settings to allow configuration of cast endpoints.
446     * <p>
447     * In some cases, a matching Activity may not exist, so ensure you
448     * safeguard against this.
449     * <p>
450     * Input: Nothing.
451     * <p>
452     * Output: Nothing.
453     */
454    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
455    public static final String ACTION_CAST_SETTINGS =
456            "android.settings.CAST_SETTINGS";
457
458    /**
459     * Activity Action: Show settings to allow configuration of date and time.
460     * <p>
461     * In some cases, a matching Activity may not exist, so ensure you
462     * safeguard against this.
463     * <p>
464     * Input: Nothing.
465     * <p>
466     * Output: Nothing.
467     */
468    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
469    public static final String ACTION_DATE_SETTINGS =
470            "android.settings.DATE_SETTINGS";
471
472    /**
473     * Activity Action: Show settings to allow configuration of sound and volume.
474     * <p>
475     * In some cases, a matching Activity may not exist, so ensure you
476     * safeguard against this.
477     * <p>
478     * Input: Nothing.
479     * <p>
480     * Output: Nothing.
481     */
482    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
483    public static final String ACTION_SOUND_SETTINGS =
484            "android.settings.SOUND_SETTINGS";
485
486    /**
487     * Activity Action: Show settings to allow configuration of display.
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_DISPLAY_SETTINGS =
498            "android.settings.DISPLAY_SETTINGS";
499
500    /**
501     * Activity Action: Show settings to allow configuration of Night display.
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_NIGHT_DISPLAY_SETTINGS =
512            "android.settings.NIGHT_DISPLAY_SETTINGS";
513
514    /**
515     * Activity Action: Show settings to allow configuration of locale.
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_LOCALE_SETTINGS =
526            "android.settings.LOCALE_SETTINGS";
527
528    /**
529     * Activity Action: Show settings to configure input methods, in particular
530     * allowing the user to enable input methods.
531     * <p>
532     * In some cases, a matching Activity may not exist, so ensure you
533     * safeguard against this.
534     * <p>
535     * Input: Nothing.
536     * <p>
537     * Output: Nothing.
538     */
539    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
540    public static final String ACTION_VOICE_INPUT_SETTINGS =
541            "android.settings.VOICE_INPUT_SETTINGS";
542
543    /**
544     * Activity Action: Show settings to configure input methods, in particular
545     * allowing the user to enable input methods.
546     * <p>
547     * In some cases, a matching Activity may not exist, so ensure you
548     * safeguard against this.
549     * <p>
550     * Input: Nothing.
551     * <p>
552     * Output: Nothing.
553     */
554    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
555    public static final String ACTION_INPUT_METHOD_SETTINGS =
556            "android.settings.INPUT_METHOD_SETTINGS";
557
558    /**
559     * Activity Action: Show settings to enable/disable input method subtypes.
560     * <p>
561     * In some cases, a matching Activity may not exist, so ensure you
562     * safeguard against this.
563     * <p>
564     * To tell which input method's subtypes are displayed in the settings, add
565     * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
566     * If there is no extra in this Intent, subtypes from all installed input methods
567     * will be displayed in the settings.
568     *
569     * @see android.view.inputmethod.InputMethodInfo#getId
570     * <p>
571     * Input: Nothing.
572     * <p>
573     * Output: Nothing.
574     */
575    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
576    public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
577            "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
578
579    /**
580     * Activity Action: Show a dialog to select input method.
581     * <p>
582     * In some cases, a matching Activity may not exist, so ensure you
583     * safeguard against this.
584     * <p>
585     * Input: Nothing.
586     * <p>
587     * Output: Nothing.
588     * @hide
589     */
590    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
591    public static final String ACTION_SHOW_INPUT_METHOD_PICKER =
592            "android.settings.SHOW_INPUT_METHOD_PICKER";
593
594    /**
595     * Activity Action: Show settings to manage the user input dictionary.
596     * <p>
597     * Starting with {@link android.os.Build.VERSION_CODES#KITKAT},
598     * it is guaranteed there will always be an appropriate implementation for this Intent action.
599     * In prior releases of the platform this was optional, so ensure you safeguard against it.
600     * <p>
601     * Input: Nothing.
602     * <p>
603     * Output: Nothing.
604     */
605    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
606    public static final String ACTION_USER_DICTIONARY_SETTINGS =
607            "android.settings.USER_DICTIONARY_SETTINGS";
608
609    /**
610     * Activity Action: Show settings to configure the hardware keyboard.
611     * <p>
612     * In some cases, a matching Activity may not exist, so ensure you
613     * safeguard against this.
614     * <p>
615     * Input: Nothing.
616     * <p>
617     * Output: Nothing.
618     */
619    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
620    public static final String ACTION_HARD_KEYBOARD_SETTINGS =
621            "android.settings.HARD_KEYBOARD_SETTINGS";
622
623    /**
624     * Activity Action: Adds a word to the user dictionary.
625     * <p>
626     * In some cases, a matching Activity may not exist, so ensure you
627     * safeguard against this.
628     * <p>
629     * Input: An extra with key <code>word</code> that contains the word
630     * that should be added to the dictionary.
631     * <p>
632     * Output: Nothing.
633     *
634     * @hide
635     */
636    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
637    public static final String ACTION_USER_DICTIONARY_INSERT =
638            "com.android.settings.USER_DICTIONARY_INSERT";
639
640    /**
641     * Activity Action: Show settings to allow configuration of application-related settings.
642     * <p>
643     * In some cases, a matching Activity may not exist, so ensure you
644     * safeguard against this.
645     * <p>
646     * Input: Nothing.
647     * <p>
648     * Output: Nothing.
649     */
650    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
651    public static final String ACTION_APPLICATION_SETTINGS =
652            "android.settings.APPLICATION_SETTINGS";
653
654    /**
655     * Activity Action: Show settings to allow configuration of application
656     * development-related settings.  As of
657     * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} this action is
658     * a required part of the platform.
659     * <p>
660     * Input: Nothing.
661     * <p>
662     * Output: Nothing.
663     */
664    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
665    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
666            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
667
668    /**
669     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
670     * <p>
671     * In some cases, a matching Activity may not exist, so ensure you
672     * safeguard against this.
673     * <p>
674     * Input: Nothing.
675     * <p>
676     * Output: Nothing.
677     */
678    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
679    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
680            "android.settings.QUICK_LAUNCH_SETTINGS";
681
682    /**
683     * Activity Action: Show settings to manage installed applications.
684     * <p>
685     * In some cases, a matching Activity may not exist, so ensure you
686     * safeguard against this.
687     * <p>
688     * Input: Nothing.
689     * <p>
690     * Output: Nothing.
691     */
692    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
693    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
694            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
695
696    /**
697     * Activity Action: Show settings to manage all applications.
698     * <p>
699     * In some cases, a matching Activity may not exist, so ensure you
700     * safeguard against this.
701     * <p>
702     * Input: Nothing.
703     * <p>
704     * Output: Nothing.
705     */
706    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
707    public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
708            "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";
709
710    /**
711     * Activity Action: Show screen for controlling which apps can draw on top of other apps.
712     * <p>
713     * In some cases, a matching Activity may not exist, so ensure you
714     * safeguard against this.
715     * <p>
716     * Input: Optionally, the Intent's data URI can specify the application package name to
717     * directly invoke the management GUI specific to the package name. For example
718     * "package:com.my.app".
719     * <p>
720     * Output: Nothing.
721     */
722    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
723    public static final String ACTION_MANAGE_OVERLAY_PERMISSION =
724            "android.settings.action.MANAGE_OVERLAY_PERMISSION";
725
726    /**
727     * Activity Action: Show screen for controlling which apps are allowed to write/modify
728     * system settings.
729     * <p>
730     * In some cases, a matching Activity may not exist, so ensure you
731     * safeguard against this.
732     * <p>
733     * Input: Optionally, the Intent's data URI can specify the application package name to
734     * directly invoke the management GUI specific to the package name. For example
735     * "package:com.my.app".
736     * <p>
737     * Output: Nothing.
738     */
739    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
740    public static final String ACTION_MANAGE_WRITE_SETTINGS =
741            "android.settings.action.MANAGE_WRITE_SETTINGS";
742
743    /**
744     * Activity Action: Show screen of details about a particular application.
745     * <p>
746     * In some cases, a matching Activity may not exist, so ensure you
747     * safeguard against this.
748     * <p>
749     * Input: The Intent's data URI specifies the application package name
750     * to be shown, with the "package" scheme.  That is "package:com.my.app".
751     * <p>
752     * Output: Nothing.
753     */
754    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
755    public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
756            "android.settings.APPLICATION_DETAILS_SETTINGS";
757
758    /**
759     * Activity Action: Show screen for controlling which apps can ignore battery optimizations.
760     * <p>
761     * Input: Nothing.
762     * <p>
763     * Output: Nothing.
764     * <p>
765     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
766     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
767     * already ignoring optimizations.  You can use
768     * {@link #ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS} to ask the user to put you
769     * on this list.
770     */
771    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
772    public static final String ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS =
773            "android.settings.IGNORE_BATTERY_OPTIMIZATION_SETTINGS";
774
775    /**
776     * Activity Action: Ask the user to allow an app to ignore battery optimizations (that is,
777     * put them on the whitelist of apps shown by
778     * {@link #ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS}).  For an app to use this, it also
779     * must hold the {@link android.Manifest.permission#REQUEST_IGNORE_BATTERY_OPTIMIZATIONS}
780     * permission.
781     * <p><b>Note:</b> most applications should <em>not</em> use this; there are many facilities
782     * provided by the platform for applications to operate correctly in the various power
783     * saving modes.  This is only for unusual applications that need to deeply control their own
784     * execution, at the potential expense of the user's battery life.  Note that these applications
785     * greatly run the risk of showing to the user as high power consumers on their device.</p>
786     * <p>
787     * Input: The Intent's data URI must specify the application package name
788     * to be shown, with the "package" scheme.  That is "package:com.my.app".
789     * <p>
790     * Output: Nothing.
791     * <p>
792     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
793     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
794     * already ignoring optimizations.
795     */
796    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
797    public static final String ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS =
798            "android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS";
799
800    /**
801     * Activity Action: Show screen for controlling background data
802     * restrictions for a particular application.
803     * <p>
804     * Input: Intent's data URI set with an application name, using the
805     * "package" schema (like "package:com.my.app").
806     *
807     * <p>
808     * Output: Nothing.
809     * <p>
810     * Applications can also use {@link android.net.ConnectivityManager#getRestrictBackgroundStatus
811     * ConnectivityManager#getRestrictBackgroundStatus()} to determine the
812     * status of the background data restrictions for them.
813     */
814    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
815    public static final String ACTION_IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS =
816            "android.settings.IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS";
817
818    /**
819     * @hide
820     * Activity Action: Show the "app ops" settings screen.
821     * <p>
822     * Input: Nothing.
823     * <p>
824     * Output: Nothing.
825     */
826    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
827    public static final String ACTION_APP_OPS_SETTINGS =
828            "android.settings.APP_OPS_SETTINGS";
829
830    /**
831     * Activity Action: Show settings for system update functionality.
832     * <p>
833     * In some cases, a matching Activity may not exist, so ensure you
834     * safeguard against this.
835     * <p>
836     * Input: Nothing.
837     * <p>
838     * Output: Nothing.
839     *
840     * @hide
841     */
842    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
843    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
844            "android.settings.SYSTEM_UPDATE_SETTINGS";
845
846    /**
847     * Activity Action: Show settings for managed profile settings.
848     * <p>
849     * In some cases, a matching Activity may not exist, so ensure you
850     * safeguard against this.
851     * <p>
852     * Input: Nothing.
853     * <p>
854     * Output: Nothing.
855     *
856     * @hide
857     */
858    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
859    public static final String ACTION_MANAGED_PROFILE_SETTINGS =
860            "android.settings.MANAGED_PROFILE_SETTINGS";
861
862    /**
863     * Activity Action: Show settings to allow configuration of sync settings.
864     * <p>
865     * In some cases, a matching Activity may not exist, so ensure you
866     * safeguard against this.
867     * <p>
868     * The account types available to add via the add account button may be restricted by adding an
869     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
870     * authorities. Only account types which can sync with that content provider will be offered to
871     * the user.
872     * <p>
873     * Input: Nothing.
874     * <p>
875     * Output: Nothing.
876     */
877    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
878    public static final String ACTION_SYNC_SETTINGS =
879            "android.settings.SYNC_SETTINGS";
880
881    /**
882     * Activity Action: Show add account screen for creating a new account.
883     * <p>
884     * In some cases, a matching Activity may not exist, so ensure you
885     * safeguard against this.
886     * <p>
887     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
888     * extra to the Intent with one or more syncable content provider's authorities.  Only account
889     * types which can sync with that content provider will be offered to the user.
890     * <p>
891     * Account types can also be filtered by adding an {@link #EXTRA_ACCOUNT_TYPES} extra to the
892     * Intent with one or more account types.
893     * <p>
894     * Input: Nothing.
895     * <p>
896     * Output: Nothing.
897     */
898    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
899    public static final String ACTION_ADD_ACCOUNT =
900            "android.settings.ADD_ACCOUNT_SETTINGS";
901
902    /**
903     * Activity Action: Show settings for selecting the network operator.
904     * <p>
905     * In some cases, a matching Activity may not exist, so ensure you
906     * safeguard against this.
907     * <p>
908     * Input: Nothing.
909     * <p>
910     * Output: Nothing.
911     */
912    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
913    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
914            "android.settings.NETWORK_OPERATOR_SETTINGS";
915
916    /**
917     * Activity Action: Show settings for selection of 2G/3G.
918     * <p>
919     * In some cases, a matching Activity may not exist, so ensure you
920     * safeguard against this.
921     * <p>
922     * Input: Nothing.
923     * <p>
924     * Output: Nothing.
925     */
926    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
927    public static final String ACTION_DATA_ROAMING_SETTINGS =
928            "android.settings.DATA_ROAMING_SETTINGS";
929
930    /**
931     * Activity Action: Show settings for internal storage.
932     * <p>
933     * In some cases, a matching Activity may not exist, so ensure you
934     * safeguard against this.
935     * <p>
936     * Input: Nothing.
937     * <p>
938     * Output: Nothing.
939     */
940    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
941    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
942            "android.settings.INTERNAL_STORAGE_SETTINGS";
943    /**
944     * Activity Action: Show settings for memory card storage.
945     * <p>
946     * In some cases, a matching Activity may not exist, so ensure you
947     * safeguard against this.
948     * <p>
949     * Input: Nothing.
950     * <p>
951     * Output: Nothing.
952     */
953    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
954    public static final String ACTION_MEMORY_CARD_SETTINGS =
955            "android.settings.MEMORY_CARD_SETTINGS";
956
957    /**
958     * Activity Action: Show settings for global search.
959     * <p>
960     * In some cases, a matching Activity may not exist, so ensure you
961     * safeguard against this.
962     * <p>
963     * Input: Nothing.
964     * <p>
965     * Output: Nothing
966     */
967    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
968    public static final String ACTION_SEARCH_SETTINGS =
969        "android.search.action.SEARCH_SETTINGS";
970
971    /**
972     * Activity Action: Show general device information settings (serial
973     * number, software version, phone number, etc.).
974     * <p>
975     * In some cases, a matching Activity may not exist, so ensure you
976     * safeguard against this.
977     * <p>
978     * Input: Nothing.
979     * <p>
980     * Output: Nothing
981     */
982    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
983    public static final String ACTION_DEVICE_INFO_SETTINGS =
984        "android.settings.DEVICE_INFO_SETTINGS";
985
986    /**
987     * Activity Action: Show NFC settings.
988     * <p>
989     * This shows UI that allows NFC to be turned on or off.
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     * @see android.nfc.NfcAdapter#isEnabled()
998     */
999    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1000    public static final String ACTION_NFC_SETTINGS = "android.settings.NFC_SETTINGS";
1001
1002    /**
1003     * Activity Action: Show NFC Sharing settings.
1004     * <p>
1005     * This shows UI that allows NDEF Push (Android Beam) to be turned on or
1006     * off.
1007     * <p>
1008     * In some cases, a matching Activity may not exist, so ensure you
1009     * safeguard against this.
1010     * <p>
1011     * Input: Nothing.
1012     * <p>
1013     * Output: Nothing
1014     * @see android.nfc.NfcAdapter#isNdefPushEnabled()
1015     */
1016    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1017    public static final String ACTION_NFCSHARING_SETTINGS =
1018        "android.settings.NFCSHARING_SETTINGS";
1019
1020    /**
1021     * Activity Action: Show NFC Tap & Pay settings
1022     * <p>
1023     * This shows UI that allows the user to configure Tap&Pay
1024     * settings.
1025     * <p>
1026     * In some cases, a matching Activity may not exist, so ensure you
1027     * safeguard against this.
1028     * <p>
1029     * Input: Nothing.
1030     * <p>
1031     * Output: Nothing
1032     */
1033    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1034    public static final String ACTION_NFC_PAYMENT_SETTINGS =
1035        "android.settings.NFC_PAYMENT_SETTINGS";
1036
1037    /**
1038     * Activity Action: Show Daydream settings.
1039     * <p>
1040     * In some cases, a matching Activity may not exist, so ensure you
1041     * safeguard against this.
1042     * <p>
1043     * Input: Nothing.
1044     * <p>
1045     * Output: Nothing.
1046     * @see android.service.dreams.DreamService
1047     */
1048    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1049    public static final String ACTION_DREAM_SETTINGS = "android.settings.DREAM_SETTINGS";
1050
1051    /**
1052     * Activity Action: Show Notification listener settings.
1053     * <p>
1054     * In some cases, a matching Activity may not exist, so ensure you
1055     * safeguard against this.
1056     * <p>
1057     * Input: Nothing.
1058     * <p>
1059     * Output: Nothing.
1060     * @see android.service.notification.NotificationListenerService
1061     */
1062    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1063    public static final String ACTION_NOTIFICATION_LISTENER_SETTINGS
1064            = "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS";
1065
1066    /**
1067     * Activity Action: Show Do Not Disturb access settings.
1068     * <p>
1069     * Users can grant and deny access to Do Not Disturb configuration from here.
1070     * See {@link android.app.NotificationManager#isNotificationPolicyAccessGranted()} for more
1071     * details.
1072     * <p>
1073     * Input: Nothing.
1074     * <p>
1075     * Output: Nothing.
1076     */
1077    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1078    public static final String ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS
1079            = "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS";
1080
1081    /**
1082     * @hide
1083     */
1084    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1085    public static final String ACTION_CONDITION_PROVIDER_SETTINGS
1086            = "android.settings.ACTION_CONDITION_PROVIDER_SETTINGS";
1087
1088    /**
1089     * Activity Action: Show settings for video captioning.
1090     * <p>
1091     * In some cases, a matching Activity may not exist, so ensure you safeguard
1092     * against this.
1093     * <p>
1094     * Input: Nothing.
1095     * <p>
1096     * Output: Nothing.
1097     */
1098    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1099    public static final String ACTION_CAPTIONING_SETTINGS = "android.settings.CAPTIONING_SETTINGS";
1100
1101    /**
1102     * Activity Action: Show the top level print settings.
1103     * <p>
1104     * In some cases, a matching Activity may not exist, so ensure you
1105     * safeguard against this.
1106     * <p>
1107     * Input: Nothing.
1108     * <p>
1109     * Output: Nothing.
1110     */
1111    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1112    public static final String ACTION_PRINT_SETTINGS =
1113            "android.settings.ACTION_PRINT_SETTINGS";
1114
1115    /**
1116     * Activity Action: Show Zen Mode configuration settings.
1117     *
1118     * @hide
1119     */
1120    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1121    public static final String ACTION_ZEN_MODE_SETTINGS = "android.settings.ZEN_MODE_SETTINGS";
1122
1123    /**
1124     * Activity Action: Show Zen Mode (aka Do Not Disturb) priority configuration settings.
1125     */
1126    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1127    public static final String ACTION_ZEN_MODE_PRIORITY_SETTINGS
1128            = "android.settings.ZEN_MODE_PRIORITY_SETTINGS";
1129
1130    /**
1131     * Activity Action: Show Zen Mode automation configuration settings.
1132     *
1133     * @hide
1134     */
1135    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1136    public static final String ACTION_ZEN_MODE_AUTOMATION_SETTINGS
1137            = "android.settings.ZEN_MODE_AUTOMATION_SETTINGS";
1138
1139    /**
1140     * Activity Action: Modify do not disturb mode settings.
1141     * <p>
1142     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1143     * <p>
1144     * This intent MUST be started using
1145     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1146     * startVoiceActivity}.
1147     * <p>
1148     * Note: The Activity implementing this intent MUST verify that
1149     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction}.
1150     * returns true before modifying the setting.
1151     * <p>
1152     * Input: The optional {@link #EXTRA_DO_NOT_DISTURB_MODE_MINUTES} extra can be used to indicate
1153     * how long the user wishes to avoid interruptions for. The optional
1154     * {@link #EXTRA_DO_NOT_DISTURB_MODE_ENABLED} extra can be to indicate if the user is
1155     * enabling or disabling do not disturb mode. If either extra is not included, the
1156     * user maybe asked to provide the value.
1157     * <p>
1158     * Output: Nothing.
1159     */
1160    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1161    public static final String ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE =
1162            "android.settings.VOICE_CONTROL_DO_NOT_DISTURB_MODE";
1163
1164    /**
1165     * Activity Action: Show Zen Mode schedule rule configuration settings.
1166     *
1167     * @hide
1168     */
1169    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1170    public static final String ACTION_ZEN_MODE_SCHEDULE_RULE_SETTINGS
1171            = "android.settings.ZEN_MODE_SCHEDULE_RULE_SETTINGS";
1172
1173    /**
1174     * Activity Action: Show Zen Mode event rule configuration settings.
1175     *
1176     * @hide
1177     */
1178    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1179    public static final String ACTION_ZEN_MODE_EVENT_RULE_SETTINGS
1180            = "android.settings.ZEN_MODE_EVENT_RULE_SETTINGS";
1181
1182    /**
1183     * Activity Action: Show Zen Mode external rule configuration settings.
1184     *
1185     * @hide
1186     */
1187    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1188    public static final String ACTION_ZEN_MODE_EXTERNAL_RULE_SETTINGS
1189            = "android.settings.ZEN_MODE_EXTERNAL_RULE_SETTINGS";
1190
1191    /**
1192     * Activity Action: Show the regulatory information screen for the device.
1193     * <p>
1194     * In some cases, a matching Activity may not exist, so ensure you safeguard
1195     * against this.
1196     * <p>
1197     * Input: Nothing.
1198     * <p>
1199     * Output: Nothing.
1200     */
1201    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1202    public static final String
1203            ACTION_SHOW_REGULATORY_INFO = "android.settings.SHOW_REGULATORY_INFO";
1204
1205    /**
1206     * Activity Action: Show Device Name Settings.
1207     * <p>
1208     * In some cases, a matching Activity may not exist, so ensure you safeguard
1209     * against this.
1210     *
1211     * @hide
1212     */
1213    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1214    public static final String DEVICE_NAME_SETTINGS = "android.settings.DEVICE_NAME";
1215
1216    /**
1217     * Activity Action: Show pairing settings.
1218     * <p>
1219     * In some cases, a matching Activity may not exist, so ensure you safeguard
1220     * against this.
1221     *
1222     * @hide
1223     */
1224    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1225    public static final String ACTION_PAIRING_SETTINGS = "android.settings.PAIRING_SETTINGS";
1226
1227    /**
1228     * Activity Action: Show battery saver settings.
1229     * <p>
1230     * In some cases, a matching Activity may not exist, so ensure you safeguard
1231     * against this.
1232     */
1233    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1234    public static final String ACTION_BATTERY_SAVER_SETTINGS
1235            = "android.settings.BATTERY_SAVER_SETTINGS";
1236
1237    /**
1238     * Activity Action: Modify Battery Saver mode setting using a voice command.
1239     * <p>
1240     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1241     * <p>
1242     * This intent MUST be started using
1243     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1244     * startVoiceActivity}.
1245     * <p>
1246     * Note: The activity implementing this intent MUST verify that
1247     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
1248     * modifying the setting.
1249     * <p>
1250     * Input: To tell which state batter saver mode should be set to, add the
1251     * {@link #EXTRA_BATTERY_SAVER_MODE_ENABLED} extra to this Intent with the state specified.
1252     * If the extra is not included, no changes will be made.
1253     * <p>
1254     * Output: Nothing.
1255     */
1256    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1257    public static final String ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE =
1258            "android.settings.VOICE_CONTROL_BATTERY_SAVER_MODE";
1259
1260    /**
1261     * Activity Action: Show Home selection settings. If there are multiple activities
1262     * that can satisfy the {@link Intent#CATEGORY_HOME} intent, this screen allows you
1263     * to pick your preferred activity.
1264     */
1265    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1266    public static final String ACTION_HOME_SETTINGS
1267            = "android.settings.HOME_SETTINGS";
1268
1269    /**
1270     * Activity Action: Show Default apps settings.
1271     * <p>
1272     * In some cases, a matching Activity may not exist, so ensure you
1273     * safeguard against this.
1274     * <p>
1275     * Input: Nothing.
1276     * <p>
1277     * Output: Nothing.
1278     */
1279    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1280    public static final String ACTION_MANAGE_DEFAULT_APPS_SETTINGS
1281            = "android.settings.MANAGE_DEFAULT_APPS_SETTINGS";
1282
1283    /**
1284     * Activity Action: Show notification settings.
1285     *
1286     * @hide
1287     */
1288    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1289    public static final String ACTION_NOTIFICATION_SETTINGS
1290            = "android.settings.NOTIFICATION_SETTINGS";
1291
1292    /**
1293     * Activity Action: Show notification settings for a single app.
1294     * <p>
1295     *     Input: {@link #EXTRA_APP_PACKAGE}, the package containing the channel to display.
1296     *     Input: Optionally, {@link #EXTRA_CHANNEL_ID}, to highlight that channel.
1297     * <p>
1298     * Output: Nothing.
1299     */
1300    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1301    public static final String ACTION_APP_NOTIFICATION_SETTINGS
1302            = "android.settings.APP_NOTIFICATION_SETTINGS";
1303
1304    /**
1305     * Activity Action: Show notification settings for a single {@link NotificationChannel}.
1306     * <p>
1307     *     Input: {@link #EXTRA_APP_PACKAGE}, the package containing the channel to display.
1308     *     Input: {@link #EXTRA_CHANNEL_ID}, the id of the channel to display.
1309     * <p>
1310     * Output: Nothing.
1311     */
1312    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1313    public static final String ACTION_CHANNEL_NOTIFICATION_SETTINGS
1314            = "android.settings.CHANNEL_NOTIFICATION_SETTINGS";
1315
1316    /**
1317     * Activity Extra: The package owner of the notification channel settings to display.
1318     * <p>
1319     * This must be passed as an extra field to the {@link #ACTION_CHANNEL_NOTIFICATION_SETTINGS}.
1320     */
1321    public static final String EXTRA_APP_PACKAGE = "android.provider.extra.APP_PACKAGE";
1322
1323    /**
1324     * Activity Extra: The {@link NotificationChannel#getId()} of the notification channel settings
1325     * to display.
1326     * <p>
1327     * This must be passed as an extra field to the {@link #ACTION_CHANNEL_NOTIFICATION_SETTINGS}.
1328     */
1329    public static final String EXTRA_CHANNEL_ID = "android.provider.extra.CHANNEL_ID";
1330
1331    /**
1332     * Activity Action: Show notification redaction settings.
1333     *
1334     * @hide
1335     */
1336    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1337    public static final String ACTION_APP_NOTIFICATION_REDACTION
1338            = "android.settings.ACTION_APP_NOTIFICATION_REDACTION";
1339
1340    /** @hide */ public static final String EXTRA_APP_UID = "app_uid";
1341
1342    /**
1343     * Activity Action: Show a dialog with disabled by policy message.
1344     * <p> If an user action is disabled by policy, this dialog can be triggered to let
1345     * the user know about this.
1346     * <p>
1347     * Input: Nothing.
1348     * <p>
1349     * Output: Nothing.
1350     *
1351     * @hide
1352     */
1353    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1354    public static final String ACTION_SHOW_ADMIN_SUPPORT_DETAILS
1355            = "android.settings.SHOW_ADMIN_SUPPORT_DETAILS";
1356
1357    /**
1358     * Activity Action: Show a dialog for remote bugreport flow.
1359     * <p>
1360     * Input: Nothing.
1361     * <p>
1362     * Output: Nothing.
1363     *
1364     * @hide
1365     */
1366    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1367    public static final String ACTION_SHOW_REMOTE_BUGREPORT_DIALOG
1368            = "android.settings.SHOW_REMOTE_BUGREPORT_DIALOG";
1369
1370    /**
1371     * Activity Action: Show VR listener settings.
1372     * <p>
1373     * Input: Nothing.
1374     * <p>
1375     * Output: Nothing.
1376     *
1377     * @see android.service.vr.VrListenerService
1378     */
1379    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1380    public static final String ACTION_VR_LISTENER_SETTINGS
1381            = "android.settings.VR_LISTENER_SETTINGS";
1382
1383    /**
1384     * Activity Action: Show Picture-in-picture settings.
1385     * <p>
1386     * Input: Nothing.
1387     * <p>
1388     * Output: Nothing.
1389     *
1390     * @hide
1391     */
1392    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1393    public static final String ACTION_PICTURE_IN_PICTURE_SETTINGS
1394            = "android.settings.PICTURE_IN_PICTURE_SETTINGS";
1395
1396    /**
1397     * Activity Action: Show Storage Manager settings.
1398     * <p>
1399     * Input: Nothing.
1400     * <p>
1401     * Output: Nothing.
1402     *
1403     * @hide
1404     */
1405    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1406    public static final String ACTION_STORAGE_MANAGER_SETTINGS
1407            = "android.settings.STORAGE_MANAGER_SETTINGS";
1408
1409    /**
1410     * Activity Action: Allows user to select current webview implementation.
1411     * <p>
1412     * Input: Nothing.
1413     * <p>
1414     * Output: Nothing.
1415     */
1416    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1417    public static final String ACTION_WEBVIEW_SETTINGS = "android.settings.WEBVIEW_SETTINGS";
1418
1419    /**
1420     * Activity Action: Show enterprise privacy section.
1421     * <p>
1422     * Input: Nothing.
1423     * <p>
1424     * Output: Nothing.
1425     * @hide
1426     */
1427    @SystemApi
1428    @TestApi
1429    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1430    public static final String ACTION_ENTERPRISE_PRIVACY_SETTINGS
1431            = "android.settings.ENTERPRISE_PRIVACY_SETTINGS";
1432
1433    // End of Intent actions for Settings
1434
1435    /**
1436     * @hide - Private call() method on SettingsProvider to read from 'system' table.
1437     */
1438    public static final String CALL_METHOD_GET_SYSTEM = "GET_system";
1439
1440    /**
1441     * @hide - Private call() method on SettingsProvider to read from 'secure' table.
1442     */
1443    public static final String CALL_METHOD_GET_SECURE = "GET_secure";
1444
1445    /**
1446     * @hide - Private call() method on SettingsProvider to read from 'global' table.
1447     */
1448    public static final String CALL_METHOD_GET_GLOBAL = "GET_global";
1449
1450    /**
1451     * @hide - Specifies that the caller of the fast-path call()-based flow tracks
1452     * the settings generation in order to cache values locally. If this key is
1453     * mapped to a <code>null</code> string extra in the request bundle, the response
1454     * bundle will contain the same key mapped to a parcelable extra which would be
1455     * an {@link android.util.MemoryIntArray}. The response will also contain an
1456     * integer mapped to the {@link #CALL_METHOD_GENERATION_INDEX_KEY} which is the
1457     * index in the array clients should use to lookup the generation. For efficiency
1458     * the caller should request the generation tracking memory array only if it
1459     * doesn't already have it.
1460     *
1461     * @see #CALL_METHOD_GENERATION_INDEX_KEY
1462     */
1463    public static final String CALL_METHOD_TRACK_GENERATION_KEY = "_track_generation";
1464
1465    /**
1466     * @hide Key with the location in the {@link android.util.MemoryIntArray} where
1467     * to look up the generation id of the backing table. The value is an integer.
1468     *
1469     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1470     */
1471    public static final String CALL_METHOD_GENERATION_INDEX_KEY = "_generation_index";
1472
1473    /**
1474     * @hide Key with the settings table generation. The value is an integer.
1475     *
1476     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1477     */
1478    public static final String CALL_METHOD_GENERATION_KEY = "_generation";
1479
1480    /**
1481     * @hide - User handle argument extra to the fast-path call()-based requests
1482     */
1483    public static final String CALL_METHOD_USER_KEY = "_user";
1484
1485    /**
1486     * @hide - Boolean argument extra to the fast-path call()-based requests
1487     */
1488    public static final String CALL_METHOD_MAKE_DEFAULT_KEY = "_make_default";
1489
1490    /**
1491     * @hide - User handle argument extra to the fast-path call()-based requests
1492     */
1493    public static final String CALL_METHOD_RESET_MODE_KEY = "_reset_mode";
1494
1495    /**
1496     * @hide - String argument extra to the fast-path call()-based requests
1497     */
1498    public static final String CALL_METHOD_TAG_KEY = "_tag";
1499
1500    /** @hide - Private call() method to write to 'system' table */
1501    public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
1502
1503    /** @hide - Private call() method to write to 'secure' table */
1504    public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
1505
1506    /** @hide - Private call() method to write to 'global' table */
1507    public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";
1508
1509    /** @hide - Private call() method to reset to defaults the 'global' table */
1510    public static final String CALL_METHOD_RESET_GLOBAL = "RESET_global";
1511
1512    /** @hide - Private call() method to reset to defaults the 'secure' table */
1513    public static final String CALL_METHOD_RESET_SECURE = "RESET_secure";
1514
1515    /**
1516     * Activity Extra: Limit available options in launched activity based on the given authority.
1517     * <p>
1518     * This can be passed as an extra field in an Activity Intent with one or more syncable content
1519     * provider's authorities as a String[]. This field is used by some intents to alter the
1520     * behavior of the called activity.
1521     * <p>
1522     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
1523     * on the authority given.
1524     */
1525    public static final String EXTRA_AUTHORITIES = "authorities";
1526
1527    /**
1528     * Activity Extra: Limit available options in launched activity based on the given account
1529     * types.
1530     * <p>
1531     * This can be passed as an extra field in an Activity Intent with one or more account types
1532     * as a String[]. This field is used by some intents to alter the behavior of the called
1533     * activity.
1534     * <p>
1535     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
1536     * list.
1537     */
1538    public static final String EXTRA_ACCOUNT_TYPES = "account_types";
1539
1540    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
1541
1542    /**
1543     * Activity Extra: The device identifier to act upon.
1544     * <p>
1545     * This can be passed as an extra field in an Activity Intent with a single
1546     * InputDeviceIdentifier. This field is used by some activities to jump straight into the
1547     * settings for the given device.
1548     * <p>
1549     * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
1550     * dialog for the given device.
1551     * @hide
1552     */
1553    public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";
1554
1555    /**
1556     * Activity Extra: Enable or disable Airplane Mode.
1557     * <p>
1558     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
1559     * intent as a boolean to indicate if it should be enabled.
1560     */
1561    public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";
1562
1563    /**
1564     * Activity Extra: Enable or disable Battery saver mode.
1565     * <p>
1566     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
1567     * intent as a boolean to indicate if it should be enabled.
1568     */
1569    public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
1570            "android.settings.extra.battery_saver_mode_enabled";
1571
1572    /**
1573     * Activity Extra: Enable or disable Do Not Disturb mode.
1574     * <p>
1575     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1576     * intent as a boolean to indicate if it should be enabled.
1577     */
1578    public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
1579            "android.settings.extra.do_not_disturb_mode_enabled";
1580
1581    /**
1582     * Activity Extra: How many minutes to enable do not disturb mode for.
1583     * <p>
1584     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1585     * intent to indicate how long do not disturb mode should be enabled for.
1586     */
1587    public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
1588            "android.settings.extra.do_not_disturb_mode_minutes";
1589
1590    /**
1591     * Reset mode: reset to defaults only settings changed by the
1592     * calling package. If there is a default set the setting
1593     * will be set to it, otherwise the setting will be deleted.
1594     * This is the only type of reset available to non-system clients.
1595     * @hide
1596     */
1597    public static final int RESET_MODE_PACKAGE_DEFAULTS = 1;
1598
1599    /**
1600     * Reset mode: reset all settings set by untrusted packages, which is
1601     * packages that aren't a part of the system, to the current defaults.
1602     * If there is a default set the setting will be set to it, otherwise
1603     * the setting will be deleted. This mode is only available to the system.
1604     * @hide
1605     */
1606    public static final int RESET_MODE_UNTRUSTED_DEFAULTS = 2;
1607
1608    /**
1609     * Reset mode: delete all settings set by untrusted packages, which is
1610     * packages that aren't a part of the system. If a setting is set by an
1611     * untrusted package it will be deleted if its default is not provided
1612     * by the system, otherwise the setting will be set to its default.
1613     * This mode is only available to the system.
1614     * @hide
1615     */
1616    public static final int RESET_MODE_UNTRUSTED_CHANGES = 3;
1617
1618    /**
1619     * Reset mode: reset all settings to defaults specified by trusted
1620     * packages, which is packages that are a part of the system, and
1621     * delete all settings set by untrusted packages. If a setting has
1622     * a default set by a system package it will be set to the default,
1623     * otherwise the setting will be deleted. This mode is only available
1624     * to the system.
1625     * @hide
1626     */
1627    public static final int RESET_MODE_TRUSTED_DEFAULTS = 4;
1628
1629    /** @hide */
1630    @Retention(RetentionPolicy.SOURCE)
1631    @IntDef({
1632            RESET_MODE_PACKAGE_DEFAULTS,
1633            RESET_MODE_UNTRUSTED_DEFAULTS,
1634            RESET_MODE_UNTRUSTED_CHANGES,
1635            RESET_MODE_TRUSTED_DEFAULTS
1636    })
1637    public @interface ResetMode{}
1638
1639    /**
1640     * Activity Extra: Number of certificates
1641     * <p>
1642     * This can be passed as an extra field to the {@link #ACTION_MONITORING_CERT_INFO}
1643     * intent to indicate the number of certificates
1644     * @hide
1645     */
1646    public static final String EXTRA_NUMBER_OF_CERTIFICATES =
1647            "android.settings.extra.number_of_certificates";
1648
1649    private static final String JID_RESOURCE_PREFIX = "android";
1650
1651    public static final String AUTHORITY = "settings";
1652
1653    private static final String TAG = "Settings";
1654    private static final boolean LOCAL_LOGV = false;
1655
1656    // Lock ensures that when enabling/disabling the master location switch, we don't end up
1657    // with a partial enable/disable state in multi-threaded situations.
1658    private static final Object mLocationSettingsLock = new Object();
1659
1660    // Used in system server calling uid workaround in call()
1661    private static boolean sInSystemServer = false;
1662    private static final Object sInSystemServerLock = new Object();
1663
1664    /** @hide */
1665    public static void setInSystemServer() {
1666        synchronized (sInSystemServerLock) {
1667            sInSystemServer = true;
1668        }
1669    }
1670
1671    /** @hide */
1672    public static boolean isInSystemServer() {
1673        synchronized (sInSystemServerLock) {
1674            return sInSystemServer;
1675        }
1676    }
1677
1678    public static class SettingNotFoundException extends AndroidException {
1679        public SettingNotFoundException(String msg) {
1680            super(msg);
1681        }
1682    }
1683
1684    /**
1685     * Common base for tables of name/value settings.
1686     */
1687    public static class NameValueTable implements BaseColumns {
1688        public static final String NAME = "name";
1689        public static final String VALUE = "value";
1690
1691        protected static boolean putString(ContentResolver resolver, Uri uri,
1692                String name, String value) {
1693            // The database will take care of replacing duplicates.
1694            try {
1695                ContentValues values = new ContentValues();
1696                values.put(NAME, name);
1697                values.put(VALUE, value);
1698                resolver.insert(uri, values);
1699                return true;
1700            } catch (SQLException e) {
1701                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
1702                return false;
1703            }
1704        }
1705
1706        public static Uri getUriFor(Uri uri, String name) {
1707            return Uri.withAppendedPath(uri, name);
1708        }
1709    }
1710
1711    private static final class GenerationTracker {
1712        private final MemoryIntArray mArray;
1713        private final Runnable mErrorHandler;
1714        private final int mIndex;
1715        private int mCurrentGeneration;
1716
1717        public GenerationTracker(@NonNull MemoryIntArray array, int index,
1718                int generation, Runnable errorHandler) {
1719            mArray = array;
1720            mIndex = index;
1721            mErrorHandler = errorHandler;
1722            mCurrentGeneration = generation;
1723        }
1724
1725        public boolean isGenerationChanged() {
1726            final int currentGeneration = readCurrentGeneration();
1727            if (currentGeneration >= 0) {
1728                if (currentGeneration == mCurrentGeneration) {
1729                    return false;
1730                }
1731                mCurrentGeneration = currentGeneration;
1732            }
1733            return true;
1734        }
1735
1736        private int readCurrentGeneration() {
1737            try {
1738                return mArray.get(mIndex);
1739            } catch (IOException e) {
1740                Log.e(TAG, "Error getting current generation", e);
1741                if (mErrorHandler != null) {
1742                    mErrorHandler.run();
1743                }
1744            }
1745            return -1;
1746        }
1747
1748        public void destroy() {
1749            try {
1750                mArray.close();
1751            } catch (IOException e) {
1752                Log.e(TAG, "Error closing backing array", e);
1753                if (mErrorHandler != null) {
1754                    mErrorHandler.run();
1755                }
1756            }
1757        }
1758    }
1759
1760    private static final class ContentProviderHolder {
1761        private final Object mLock = new Object();
1762
1763        @GuardedBy("mLock")
1764        private final Uri mUri;
1765        @GuardedBy("mLock")
1766        private IContentProvider mContentProvider;
1767
1768        public ContentProviderHolder(Uri uri) {
1769            mUri = uri;
1770        }
1771
1772        public IContentProvider getProvider(ContentResolver contentResolver) {
1773            synchronized (mLock) {
1774                if (mContentProvider == null) {
1775                    mContentProvider = contentResolver
1776                            .acquireProvider(mUri.getAuthority());
1777                }
1778                return mContentProvider;
1779            }
1780        }
1781    }
1782
1783    // Thread-safe.
1784    private static class NameValueCache {
1785        private static final boolean DEBUG = false;
1786
1787        private static final String[] SELECT_VALUE_PROJECTION = new String[] {
1788                Settings.NameValueTable.VALUE
1789        };
1790
1791        private static final String NAME_EQ_PLACEHOLDER = "name=?";
1792
1793        // Must synchronize on 'this' to access mValues and mValuesVersion.
1794        private final HashMap<String, String> mValues = new HashMap<>();
1795
1796        private final Uri mUri;
1797        private final ContentProviderHolder mProviderHolder;
1798
1799        // The method we'll call (or null, to not use) on the provider
1800        // for the fast path of retrieving settings.
1801        private final String mCallGetCommand;
1802        private final String mCallSetCommand;
1803
1804        @GuardedBy("this")
1805        private GenerationTracker mGenerationTracker;
1806
1807        public NameValueCache(Uri uri, String getCommand, String setCommand,
1808                ContentProviderHolder providerHolder) {
1809            mUri = uri;
1810            mCallGetCommand = getCommand;
1811            mCallSetCommand = setCommand;
1812            mProviderHolder = providerHolder;
1813        }
1814
1815        public boolean putStringForUser(ContentResolver cr, String name, String value,
1816                String tag, boolean makeDefault, final int userHandle) {
1817            try {
1818                Bundle arg = new Bundle();
1819                arg.putString(Settings.NameValueTable.VALUE, value);
1820                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
1821                if (tag != null) {
1822                    arg.putString(CALL_METHOD_TAG_KEY, tag);
1823                }
1824                if (makeDefault) {
1825                    arg.putBoolean(CALL_METHOD_MAKE_DEFAULT_KEY, true);
1826                }
1827                IContentProvider cp = mProviderHolder.getProvider(cr);
1828                cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
1829            } catch (RemoteException e) {
1830                Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
1831                return false;
1832            }
1833            return true;
1834        }
1835
1836        public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
1837            final boolean isSelf = (userHandle == UserHandle.myUserId());
1838            if (isSelf) {
1839                synchronized (NameValueCache.this) {
1840                    if (mGenerationTracker != null) {
1841                        if (mGenerationTracker.isGenerationChanged()) {
1842                            if (DEBUG) {
1843                                Log.i(TAG, "Generation changed for type:"
1844                                        + mUri.getPath() + " in package:"
1845                                        + cr.getPackageName() +" and user:" + userHandle);
1846                            }
1847                            mValues.clear();
1848                        } else if (mValues.containsKey(name)) {
1849                            return mValues.get(name);
1850                        }
1851                    }
1852                }
1853            } else {
1854                if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
1855                        + " by user " + UserHandle.myUserId() + " so skipping cache");
1856            }
1857
1858            IContentProvider cp = mProviderHolder.getProvider(cr);
1859
1860            // Try the fast path first, not using query().  If this
1861            // fails (alternate Settings provider that doesn't support
1862            // this interface?) then we fall back to the query/table
1863            // interface.
1864            if (mCallGetCommand != null) {
1865                try {
1866                    Bundle args = null;
1867                    if (!isSelf) {
1868                        args = new Bundle();
1869                        args.putInt(CALL_METHOD_USER_KEY, userHandle);
1870                    }
1871                    boolean needsGenerationTracker = false;
1872                    synchronized (NameValueCache.this) {
1873                        if (isSelf && mGenerationTracker == null) {
1874                            needsGenerationTracker = true;
1875                            if (args == null) {
1876                                args = new Bundle();
1877                            }
1878                            args.putString(CALL_METHOD_TRACK_GENERATION_KEY, null);
1879                            if (DEBUG) {
1880                                Log.i(TAG, "Requested generation tracker for type: "+ mUri.getPath()
1881                                        + " in package:" + cr.getPackageName() +" and user:"
1882                                        + userHandle);
1883                            }
1884                        }
1885                    }
1886                    Bundle b;
1887                    // If we're in system server and in a binder transaction we need to clear the
1888                    // calling uid. This works around code in system server that did not call
1889                    // clearCallingIdentity, previously this wasn't needed because reading settings
1890                    // did not do permission checking but thats no longer the case.
1891                    // Long term this should be removed and callers should properly call
1892                    // clearCallingIdentity or use a ContentResolver from the caller as needed.
1893                    if (Settings.isInSystemServer() && Binder.getCallingUid() != Process.myUid()) {
1894                        final long token = Binder.clearCallingIdentity();
1895                        try {
1896                            b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
1897                        } finally {
1898                            Binder.restoreCallingIdentity(token);
1899                        }
1900                    } else {
1901                        b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
1902                    }
1903                    if (b != null) {
1904                        String value = b.getString(Settings.NameValueTable.VALUE);
1905                        // Don't update our cache for reads of other users' data
1906                        if (isSelf) {
1907                            synchronized (NameValueCache.this) {
1908                                if (needsGenerationTracker) {
1909                                    MemoryIntArray array = b.getParcelable(
1910                                            CALL_METHOD_TRACK_GENERATION_KEY);
1911                                    final int index = b.getInt(
1912                                            CALL_METHOD_GENERATION_INDEX_KEY, -1);
1913                                    if (array != null && index >= 0) {
1914                                        final int generation = b.getInt(
1915                                                CALL_METHOD_GENERATION_KEY, 0);
1916                                        if (DEBUG) {
1917                                            Log.i(TAG, "Received generation tracker for type:"
1918                                                    + mUri.getPath() + " in package:"
1919                                                    + cr.getPackageName() + " and user:"
1920                                                    + userHandle + " with index:" + index);
1921                                        }
1922                                        if (mGenerationTracker != null) {
1923                                            mGenerationTracker.destroy();
1924                                        }
1925                                        mGenerationTracker = new GenerationTracker(array, index,
1926                                                generation, () -> {
1927                                            synchronized (NameValueCache.this) {
1928                                                Log.e(TAG, "Error accessing generation"
1929                                                        + " tracker - removing");
1930                                                if (mGenerationTracker != null) {
1931                                                    GenerationTracker generationTracker =
1932                                                            mGenerationTracker;
1933                                                    mGenerationTracker = null;
1934                                                    generationTracker.destroy();
1935                                                    mValues.clear();
1936                                                }
1937                                            }
1938                                        });
1939                                    }
1940                                }
1941                                mValues.put(name, value);
1942                            }
1943                        } else {
1944                            if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
1945                                    + " by " + UserHandle.myUserId()
1946                                    + " so not updating cache");
1947                        }
1948                        return value;
1949                    }
1950                    // If the response Bundle is null, we fall through
1951                    // to the query interface below.
1952                } catch (RemoteException e) {
1953                    // Not supported by the remote side?  Fall through
1954                    // to query().
1955                }
1956            }
1957
1958            Cursor c = null;
1959            try {
1960                Bundle queryArgs = ContentResolver.createSqlQueryBundle(
1961                        NAME_EQ_PLACEHOLDER, new String[]{name}, null);
1962                // Same workaround as above.
1963                if (Settings.isInSystemServer() && Binder.getCallingUid() != Process.myUid()) {
1964                    final long token = Binder.clearCallingIdentity();
1965                    try {
1966                        c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE_PROJECTION, queryArgs,
1967                                null);
1968                    } finally {
1969                        Binder.restoreCallingIdentity(token);
1970                    }
1971                } else {
1972                    c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE_PROJECTION, queryArgs,
1973                            null);
1974                }
1975                if (c == null) {
1976                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
1977                    return null;
1978                }
1979
1980                String value = c.moveToNext() ? c.getString(0) : null;
1981                synchronized (NameValueCache.this) {
1982                    mValues.put(name, value);
1983                }
1984                if (LOCAL_LOGV) {
1985                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
1986                            name + " = " + (value == null ? "(null)" : value));
1987                }
1988                return value;
1989            } catch (RemoteException e) {
1990                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
1991                return null;  // Return null, but don't cache it.
1992            } finally {
1993                if (c != null) c.close();
1994            }
1995        }
1996    }
1997
1998    /**
1999     * Checks if the specified context can draw on top of other apps. As of API
2000     * level 23, an app cannot draw on top of other apps unless it declares the
2001     * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its
2002     * manifest, <em>and</em> the user specifically grants the app this
2003     * capability. To prompt the user to grant this approval, the app must send an
2004     * intent with the action
2005     * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}, which
2006     * causes the system to display a permission management screen.
2007     *
2008     * @param context App context.
2009     * @return true if the specified context can draw on top of other apps, false otherwise
2010     */
2011    public static boolean canDrawOverlays(Context context) {
2012        return Settings.isCallingPackageAllowedToDrawOverlays(context, Process.myUid(),
2013                context.getOpPackageName(), false);
2014    }
2015
2016    /**
2017     * System settings, containing miscellaneous system preferences.  This
2018     * table holds simple name/value pairs.  There are convenience
2019     * functions for accessing individual settings entries.
2020     */
2021    public static final class System extends NameValueTable {
2022        private static final float DEFAULT_FONT_SCALE = 1.0f;
2023
2024        /** @hide */
2025        public static interface Validator {
2026            public boolean validate(String value);
2027        }
2028
2029        /**
2030         * The content:// style URL for this table
2031         */
2032        public static final Uri CONTENT_URI =
2033            Uri.parse("content://" + AUTHORITY + "/system");
2034
2035        private static final ContentProviderHolder sProviderHolder =
2036                new ContentProviderHolder(CONTENT_URI);
2037
2038        private static final NameValueCache sNameValueCache = new NameValueCache(
2039                CONTENT_URI,
2040                CALL_METHOD_GET_SYSTEM,
2041                CALL_METHOD_PUT_SYSTEM,
2042                sProviderHolder);
2043
2044        private static final HashSet<String> MOVED_TO_SECURE;
2045        static {
2046            MOVED_TO_SECURE = new HashSet<>(30);
2047            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
2048            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
2049            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
2050            MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
2051            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
2052            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
2053            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
2054            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
2055            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
2056            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
2057            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
2058            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
2059            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
2060            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
2061            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
2062            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
2063            MOVED_TO_SECURE.add(Secure.WIFI_ON);
2064            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
2065            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
2066            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
2067            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
2068            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
2069            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
2070            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
2071            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
2072            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
2073            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
2074            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
2075
2076            // At one time in System, then Global, but now back in Secure
2077            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
2078        }
2079
2080        private static final HashSet<String> MOVED_TO_GLOBAL;
2081        private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
2082        static {
2083            MOVED_TO_GLOBAL = new HashSet<>();
2084            MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<>();
2085
2086            // these were originally in system but migrated to secure in the past,
2087            // so are duplicated in the Secure.* namespace
2088            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
2089            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
2090            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
2091            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
2092            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
2093            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);
2094
2095            // these are moving directly from system to global
2096            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
2097            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
2098            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
2099            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
2100            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
2101            MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
2102            MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
2103            MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
2104            MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
2105            MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
2106            MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
2107            MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
2108            MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
2109            MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
2110            MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
2111            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
2112            MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
2113            MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
2114            MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
2115            MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
2116            MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
2117            MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
2118            MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
2119            MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
2120            MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
2121            MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
2122            MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
2123            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
2124            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
2125            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
2126            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
2127            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
2128            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
2129            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
2130            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
2131        }
2132
2133        private static final Validator sBooleanValidator =
2134                new DiscreteValueValidator(new String[] {"0", "1"});
2135
2136        private static final Validator sNonNegativeIntegerValidator = new Validator() {
2137            @Override
2138            public boolean validate(String value) {
2139                try {
2140                    return Integer.parseInt(value) >= 0;
2141                } catch (NumberFormatException e) {
2142                    return false;
2143                }
2144            }
2145        };
2146
2147        private static final Validator sUriValidator = new Validator() {
2148            @Override
2149            public boolean validate(String value) {
2150                try {
2151                    Uri.decode(value);
2152                    return true;
2153                } catch (IllegalArgumentException e) {
2154                    return false;
2155                }
2156            }
2157        };
2158
2159        private static final Validator sLenientIpAddressValidator = new Validator() {
2160            private static final int MAX_IPV6_LENGTH = 45;
2161
2162            @Override
2163            public boolean validate(String value) {
2164                return value.length() <= MAX_IPV6_LENGTH;
2165            }
2166        };
2167
2168        /** @hide */
2169        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
2170            outKeySet.addAll(MOVED_TO_GLOBAL);
2171            outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
2172        }
2173
2174        /** @hide */
2175        public static void getMovedToSecureSettings(Set<String> outKeySet) {
2176            outKeySet.addAll(MOVED_TO_SECURE);
2177        }
2178
2179        /** @hide */
2180        public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
2181            outKeySet.addAll(MOVED_TO_GLOBAL);
2182        }
2183
2184        /**
2185         * Look up a name in the database.
2186         * @param resolver to access the database with
2187         * @param name to look up in the table
2188         * @return the corresponding value, or null if not present
2189         */
2190        public static String getString(ContentResolver resolver, String name) {
2191            return getStringForUser(resolver, name, UserHandle.myUserId());
2192        }
2193
2194        /** @hide */
2195        public static String getStringForUser(ContentResolver resolver, String name,
2196                int userHandle) {
2197            if (MOVED_TO_SECURE.contains(name)) {
2198                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2199                        + " to android.provider.Settings.Secure, returning read-only value.");
2200                return Secure.getStringForUser(resolver, name, userHandle);
2201            }
2202            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
2203                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2204                        + " to android.provider.Settings.Global, returning read-only value.");
2205                return Global.getStringForUser(resolver, name, userHandle);
2206            }
2207            return sNameValueCache.getStringForUser(resolver, name, userHandle);
2208        }
2209
2210        /**
2211         * Store a name/value pair into the database.
2212         * @param resolver to access the database with
2213         * @param name to store
2214         * @param value to associate with the name
2215         * @return true if the value was set, false on database errors
2216         */
2217        public static boolean putString(ContentResolver resolver, String name, String value) {
2218            return putStringForUser(resolver, name, value, UserHandle.myUserId());
2219        }
2220
2221        /** @hide */
2222        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
2223                int userHandle) {
2224            if (MOVED_TO_SECURE.contains(name)) {
2225                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2226                        + " to android.provider.Settings.Secure, value is unchanged.");
2227                return false;
2228            }
2229            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
2230                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2231                        + " to android.provider.Settings.Global, value is unchanged.");
2232                return false;
2233            }
2234            return sNameValueCache.putStringForUser(resolver, name, value, null, false, userHandle);
2235        }
2236
2237        /**
2238         * Construct the content URI for a particular name/value pair,
2239         * useful for monitoring changes with a ContentObserver.
2240         * @param name to look up in the table
2241         * @return the corresponding content URI, or null if not present
2242         */
2243        public static Uri getUriFor(String name) {
2244            if (MOVED_TO_SECURE.contains(name)) {
2245                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2246                    + " to android.provider.Settings.Secure, returning Secure URI.");
2247                return Secure.getUriFor(Secure.CONTENT_URI, name);
2248            }
2249            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
2250                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
2251                        + " to android.provider.Settings.Global, returning read-only global URI.");
2252                return Global.getUriFor(Global.CONTENT_URI, name);
2253            }
2254            return getUriFor(CONTENT_URI, name);
2255        }
2256
2257        /**
2258         * Convenience function for retrieving a single system settings value
2259         * as an integer.  Note that internally setting values are always
2260         * stored as strings; this function converts the string to an integer
2261         * for you.  The default value will be returned if the setting is
2262         * not defined or not an integer.
2263         *
2264         * @param cr The ContentResolver to access.
2265         * @param name The name of the setting to retrieve.
2266         * @param def Value to return if the setting is not defined.
2267         *
2268         * @return The setting's current value, or 'def' if it is not defined
2269         * or not a valid integer.
2270         */
2271        public static int getInt(ContentResolver cr, String name, int def) {
2272            return getIntForUser(cr, name, def, UserHandle.myUserId());
2273        }
2274
2275        /** @hide */
2276        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
2277            String v = getStringForUser(cr, name, userHandle);
2278            try {
2279                return v != null ? Integer.parseInt(v) : def;
2280            } catch (NumberFormatException e) {
2281                return def;
2282            }
2283        }
2284
2285        /**
2286         * Convenience function for retrieving a single system settings value
2287         * as an integer.  Note that internally setting values are always
2288         * stored as strings; this function converts the string to an integer
2289         * for you.
2290         * <p>
2291         * This version does not take a default value.  If the setting has not
2292         * been set, or the string value is not a number,
2293         * it throws {@link SettingNotFoundException}.
2294         *
2295         * @param cr The ContentResolver to access.
2296         * @param name The name of the setting to retrieve.
2297         *
2298         * @throws SettingNotFoundException Thrown if a setting by the given
2299         * name can't be found or the setting value is not an integer.
2300         *
2301         * @return The setting's current value.
2302         */
2303        public static int getInt(ContentResolver cr, String name)
2304                throws SettingNotFoundException {
2305            return getIntForUser(cr, name, UserHandle.myUserId());
2306        }
2307
2308        /** @hide */
2309        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
2310                throws SettingNotFoundException {
2311            String v = getStringForUser(cr, name, userHandle);
2312            try {
2313                return Integer.parseInt(v);
2314            } catch (NumberFormatException e) {
2315                throw new SettingNotFoundException(name);
2316            }
2317        }
2318
2319        /**
2320         * Convenience function for updating a single settings value as an
2321         * integer. This will either create a new entry in the table if the
2322         * given name does not exist, or modify the value of the existing row
2323         * with that name.  Note that internally setting values are always
2324         * stored as strings, so this function converts the given value to a
2325         * string before storing it.
2326         *
2327         * @param cr The ContentResolver to access.
2328         * @param name The name of the setting to modify.
2329         * @param value The new value for the setting.
2330         * @return true if the value was set, false on database errors
2331         */
2332        public static boolean putInt(ContentResolver cr, String name, int value) {
2333            return putIntForUser(cr, name, value, UserHandle.myUserId());
2334        }
2335
2336        /** @hide */
2337        public static boolean putIntForUser(ContentResolver cr, String name, int value,
2338                int userHandle) {
2339            return putStringForUser(cr, name, Integer.toString(value), userHandle);
2340        }
2341
2342        /**
2343         * Convenience function for retrieving a single system settings value
2344         * as a {@code long}.  Note that internally setting values are always
2345         * stored as strings; this function converts the string to a {@code long}
2346         * for you.  The default value will be returned if the setting is
2347         * not defined or not a {@code long}.
2348         *
2349         * @param cr The ContentResolver to access.
2350         * @param name The name of the setting to retrieve.
2351         * @param def Value to return if the setting is not defined.
2352         *
2353         * @return The setting's current value, or 'def' if it is not defined
2354         * or not a valid {@code long}.
2355         */
2356        public static long getLong(ContentResolver cr, String name, long def) {
2357            return getLongForUser(cr, name, def, UserHandle.myUserId());
2358        }
2359
2360        /** @hide */
2361        public static long getLongForUser(ContentResolver cr, String name, long def,
2362                int userHandle) {
2363            String valString = getStringForUser(cr, name, userHandle);
2364            long value;
2365            try {
2366                value = valString != null ? Long.parseLong(valString) : def;
2367            } catch (NumberFormatException e) {
2368                value = def;
2369            }
2370            return value;
2371        }
2372
2373        /**
2374         * Convenience function for retrieving a single system settings value
2375         * as a {@code long}.  Note that internally setting values are always
2376         * stored as strings; this function converts the string to a {@code long}
2377         * for you.
2378         * <p>
2379         * This version does not take a default value.  If the setting has not
2380         * been set, or the string value is not a number,
2381         * it throws {@link SettingNotFoundException}.
2382         *
2383         * @param cr The ContentResolver to access.
2384         * @param name The name of the setting to retrieve.
2385         *
2386         * @return The setting's current value.
2387         * @throws SettingNotFoundException Thrown if a setting by the given
2388         * name can't be found or the setting value is not an integer.
2389         */
2390        public static long getLong(ContentResolver cr, String name)
2391                throws SettingNotFoundException {
2392            return getLongForUser(cr, name, UserHandle.myUserId());
2393        }
2394
2395        /** @hide */
2396        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
2397                throws SettingNotFoundException {
2398            String valString = getStringForUser(cr, name, userHandle);
2399            try {
2400                return Long.parseLong(valString);
2401            } catch (NumberFormatException e) {
2402                throw new SettingNotFoundException(name);
2403            }
2404        }
2405
2406        /**
2407         * Convenience function for updating a single settings value as a long
2408         * integer. This will either create a new entry in the table if the
2409         * given name does not exist, or modify the value of the existing row
2410         * with that name.  Note that internally setting values are always
2411         * stored as strings, so this function converts the given value to a
2412         * string before storing it.
2413         *
2414         * @param cr The ContentResolver to access.
2415         * @param name The name of the setting to modify.
2416         * @param value The new value for the setting.
2417         * @return true if the value was set, false on database errors
2418         */
2419        public static boolean putLong(ContentResolver cr, String name, long value) {
2420            return putLongForUser(cr, name, value, UserHandle.myUserId());
2421        }
2422
2423        /** @hide */
2424        public static boolean putLongForUser(ContentResolver cr, String name, long value,
2425                int userHandle) {
2426            return putStringForUser(cr, name, Long.toString(value), userHandle);
2427        }
2428
2429        /**
2430         * Convenience function for retrieving a single system settings value
2431         * as a floating point number.  Note that internally setting values are
2432         * always stored as strings; this function converts the string to an
2433         * float for you. The default value will be returned if the setting
2434         * is not defined or not a valid float.
2435         *
2436         * @param cr The ContentResolver to access.
2437         * @param name The name of the setting to retrieve.
2438         * @param def Value to return if the setting is not defined.
2439         *
2440         * @return The setting's current value, or 'def' if it is not defined
2441         * or not a valid float.
2442         */
2443        public static float getFloat(ContentResolver cr, String name, float def) {
2444            return getFloatForUser(cr, name, def, UserHandle.myUserId());
2445        }
2446
2447        /** @hide */
2448        public static float getFloatForUser(ContentResolver cr, String name, float def,
2449                int userHandle) {
2450            String v = getStringForUser(cr, name, userHandle);
2451            try {
2452                return v != null ? Float.parseFloat(v) : def;
2453            } catch (NumberFormatException e) {
2454                return def;
2455            }
2456        }
2457
2458        /**
2459         * Convenience function for retrieving a single system settings value
2460         * as a float.  Note that internally setting values are always
2461         * stored as strings; this function converts the string to a float
2462         * for you.
2463         * <p>
2464         * This version does not take a default value.  If the setting has not
2465         * been set, or the string value is not a number,
2466         * it throws {@link SettingNotFoundException}.
2467         *
2468         * @param cr The ContentResolver to access.
2469         * @param name The name of the setting to retrieve.
2470         *
2471         * @throws SettingNotFoundException Thrown if a setting by the given
2472         * name can't be found or the setting value is not a float.
2473         *
2474         * @return The setting's current value.
2475         */
2476        public static float getFloat(ContentResolver cr, String name)
2477                throws SettingNotFoundException {
2478            return getFloatForUser(cr, name, UserHandle.myUserId());
2479        }
2480
2481        /** @hide */
2482        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
2483                throws SettingNotFoundException {
2484            String v = getStringForUser(cr, name, userHandle);
2485            if (v == null) {
2486                throw new SettingNotFoundException(name);
2487            }
2488            try {
2489                return Float.parseFloat(v);
2490            } catch (NumberFormatException e) {
2491                throw new SettingNotFoundException(name);
2492            }
2493        }
2494
2495        /**
2496         * Convenience function for updating a single settings value as a
2497         * floating point number. This will either create a new entry in the
2498         * table if the given name does not exist, or modify the value of the
2499         * existing row with that name.  Note that internally setting values
2500         * are always stored as strings, so this function converts the given
2501         * value to a string before storing it.
2502         *
2503         * @param cr The ContentResolver to access.
2504         * @param name The name of the setting to modify.
2505         * @param value The new value for the setting.
2506         * @return true if the value was set, false on database errors
2507         */
2508        public static boolean putFloat(ContentResolver cr, String name, float value) {
2509            return putFloatForUser(cr, name, value, UserHandle.myUserId());
2510        }
2511
2512        /** @hide */
2513        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
2514                int userHandle) {
2515            return putStringForUser(cr, name, Float.toString(value), userHandle);
2516        }
2517
2518        /**
2519         * Convenience function to read all of the current
2520         * configuration-related settings into a
2521         * {@link Configuration} object.
2522         *
2523         * @param cr The ContentResolver to access.
2524         * @param outConfig Where to place the configuration settings.
2525         */
2526        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
2527            adjustConfigurationForUser(cr, outConfig, UserHandle.myUserId(),
2528                    false /* updateSettingsIfEmpty */);
2529        }
2530
2531        /** @hide */
2532        public static void adjustConfigurationForUser(ContentResolver cr, Configuration outConfig,
2533                int userHandle, boolean updateSettingsIfEmpty) {
2534            outConfig.fontScale = Settings.System.getFloatForUser(
2535                    cr, FONT_SCALE, DEFAULT_FONT_SCALE, userHandle);
2536            if (outConfig.fontScale < 0) {
2537                outConfig.fontScale = DEFAULT_FONT_SCALE;
2538            }
2539
2540            final String localeValue =
2541                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle);
2542            if (localeValue != null) {
2543                outConfig.setLocales(LocaleList.forLanguageTags(localeValue));
2544            } else {
2545                // Do not update configuration with emtpy settings since we need to take over the
2546                // locale list of previous user if the settings value is empty. This happens when a
2547                // new user is created.
2548
2549                if (updateSettingsIfEmpty) {
2550                    // Make current configuration persistent. This is necessary the first time a
2551                    // user log in. At the first login, the configuration settings are empty, so we
2552                    // need to store the adjusted configuration as the initial settings.
2553                    Settings.System.putStringForUser(
2554                            cr, SYSTEM_LOCALES, outConfig.getLocales().toLanguageTags(),
2555                            userHandle);
2556                }
2557            }
2558        }
2559
2560        /**
2561         * @hide Erase the fields in the Configuration that should be applied
2562         * by the settings.
2563         */
2564        public static void clearConfiguration(Configuration inoutConfig) {
2565            inoutConfig.fontScale = 0;
2566            if (!inoutConfig.userSetLocale && !inoutConfig.getLocales().isEmpty()) {
2567                inoutConfig.clearLocales();
2568            }
2569        }
2570
2571        /**
2572         * Convenience function to write a batch of configuration-related
2573         * settings from a {@link Configuration} object.
2574         *
2575         * @param cr The ContentResolver to access.
2576         * @param config The settings to write.
2577         * @return true if the values were set, false on database errors
2578         */
2579        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
2580            return putConfigurationForUser(cr, config, UserHandle.myUserId());
2581        }
2582
2583        /** @hide */
2584        public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
2585                int userHandle) {
2586            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
2587                    Settings.System.putStringForUser(
2588                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
2589        }
2590
2591        /** @hide */
2592        public static boolean hasInterestingConfigurationChanges(int changes) {
2593            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
2594                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
2595        }
2596
2597        /** @deprecated - Do not use */
2598        @Deprecated
2599        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
2600            return getShowGTalkServiceStatusForUser(cr, UserHandle.myUserId());
2601        }
2602
2603        /**
2604         * @hide
2605         * @deprecated - Do not use
2606         */
2607        @Deprecated
2608        public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
2609                int userHandle) {
2610            return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
2611        }
2612
2613        /** @deprecated - Do not use */
2614        @Deprecated
2615        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
2616            setShowGTalkServiceStatusForUser(cr, flag, UserHandle.myUserId());
2617        }
2618
2619        /**
2620         * @hide
2621         * @deprecated - Do not use
2622         */
2623        @Deprecated
2624        public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
2625                int userHandle) {
2626            putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
2627        }
2628
2629        private static final class DiscreteValueValidator implements Validator {
2630            private final String[] mValues;
2631
2632            public DiscreteValueValidator(String[] values) {
2633                mValues = values;
2634            }
2635
2636            @Override
2637            public boolean validate(String value) {
2638                return ArrayUtils.contains(mValues, value);
2639            }
2640        }
2641
2642        private static final class InclusiveIntegerRangeValidator implements Validator {
2643            private final int mMin;
2644            private final int mMax;
2645
2646            public InclusiveIntegerRangeValidator(int min, int max) {
2647                mMin = min;
2648                mMax = max;
2649            }
2650
2651            @Override
2652            public boolean validate(String value) {
2653                try {
2654                    final int intValue = Integer.parseInt(value);
2655                    return intValue >= mMin && intValue <= mMax;
2656                } catch (NumberFormatException e) {
2657                    return false;
2658                }
2659            }
2660        }
2661
2662        private static final class InclusiveFloatRangeValidator implements Validator {
2663            private final float mMin;
2664            private final float mMax;
2665
2666            public InclusiveFloatRangeValidator(float min, float max) {
2667                mMin = min;
2668                mMax = max;
2669            }
2670
2671            @Override
2672            public boolean validate(String value) {
2673                try {
2674                    final float floatValue = Float.parseFloat(value);
2675                    return floatValue >= mMin && floatValue <= mMax;
2676                } catch (NumberFormatException e) {
2677                    return false;
2678                }
2679            }
2680        }
2681
2682        /**
2683         * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
2684         */
2685        @Deprecated
2686        public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;
2687
2688        /**
2689         * What happens when the user presses the end call button if they're not
2690         * on a call.<br/>
2691         * <b>Values:</b><br/>
2692         * 0 - The end button does nothing.<br/>
2693         * 1 - The end button goes to the home screen.<br/>
2694         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
2695         * 3 - The end button goes to the home screen.  If the user is already on the
2696         * home screen, it puts the device to sleep.
2697         */
2698        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
2699
2700        private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
2701                new InclusiveIntegerRangeValidator(0, 3);
2702
2703        /**
2704         * END_BUTTON_BEHAVIOR value for "go home".
2705         * @hide
2706         */
2707        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
2708
2709        /**
2710         * END_BUTTON_BEHAVIOR value for "go to sleep".
2711         * @hide
2712         */
2713        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
2714
2715        /**
2716         * END_BUTTON_BEHAVIOR default value.
2717         * @hide
2718         */
2719        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
2720
2721        /**
2722         * Is advanced settings mode turned on. 0 == no, 1 == yes
2723         * @hide
2724         */
2725        public static final String ADVANCED_SETTINGS = "advanced_settings";
2726
2727        private static final Validator ADVANCED_SETTINGS_VALIDATOR = sBooleanValidator;
2728
2729        /**
2730         * ADVANCED_SETTINGS default value.
2731         * @hide
2732         */
2733        public static final int ADVANCED_SETTINGS_DEFAULT = 0;
2734
2735        /**
2736         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
2737         */
2738        @Deprecated
2739        public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;
2740
2741        /**
2742         * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
2743         */
2744        @Deprecated
2745        public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;
2746
2747        /**
2748         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
2749         */
2750        @Deprecated
2751        public static final String RADIO_WIFI = Global.RADIO_WIFI;
2752
2753        /**
2754         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
2755         * {@hide}
2756         */
2757        @Deprecated
2758        public static final String RADIO_WIMAX = Global.RADIO_WIMAX;
2759
2760        /**
2761         * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
2762         */
2763        @Deprecated
2764        public static final String RADIO_CELL = Global.RADIO_CELL;
2765
2766        /**
2767         * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
2768         */
2769        @Deprecated
2770        public static final String RADIO_NFC = Global.RADIO_NFC;
2771
2772        /**
2773         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
2774         */
2775        @Deprecated
2776        public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;
2777
2778        /**
2779         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
2780         *
2781         * {@hide}
2782         */
2783        @Deprecated
2784        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
2785                Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;
2786
2787        /**
2788         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
2789         */
2790        @Deprecated
2791        public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;
2792
2793        /**
2794         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
2795         */
2796        @Deprecated
2797        public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;
2798
2799        /**
2800         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
2801         */
2802        @Deprecated
2803        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
2804                Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;
2805
2806        /**
2807         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
2808         */
2809        @Deprecated
2810        public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;
2811
2812        /**
2813         * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
2814         */
2815        @Deprecated
2816        public static final String MODE_RINGER = Global.MODE_RINGER;
2817
2818        /**
2819         * Whether to use static IP and other static network attributes.
2820         * <p>
2821         * Set to 1 for true and 0 for false.
2822         *
2823         * @deprecated Use {@link WifiManager} instead
2824         */
2825        @Deprecated
2826        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
2827
2828        private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = sBooleanValidator;
2829
2830        /**
2831         * The static IP address.
2832         * <p>
2833         * Example: "192.168.1.51"
2834         *
2835         * @deprecated Use {@link WifiManager} instead
2836         */
2837        @Deprecated
2838        public static final String WIFI_STATIC_IP = "wifi_static_ip";
2839
2840        private static final Validator WIFI_STATIC_IP_VALIDATOR = sLenientIpAddressValidator;
2841
2842        /**
2843         * If using static IP, the gateway's IP address.
2844         * <p>
2845         * Example: "192.168.1.1"
2846         *
2847         * @deprecated Use {@link WifiManager} instead
2848         */
2849        @Deprecated
2850        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
2851
2852        private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = sLenientIpAddressValidator;
2853
2854        /**
2855         * If using static IP, the net mask.
2856         * <p>
2857         * Example: "255.255.255.0"
2858         *
2859         * @deprecated Use {@link WifiManager} instead
2860         */
2861        @Deprecated
2862        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
2863
2864        private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = sLenientIpAddressValidator;
2865
2866        /**
2867         * If using static IP, the primary DNS's IP address.
2868         * <p>
2869         * Example: "192.168.1.1"
2870         *
2871         * @deprecated Use {@link WifiManager} instead
2872         */
2873        @Deprecated
2874        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
2875
2876        private static final Validator WIFI_STATIC_DNS1_VALIDATOR = sLenientIpAddressValidator;
2877
2878        /**
2879         * If using static IP, the secondary DNS's IP address.
2880         * <p>
2881         * Example: "192.168.1.2"
2882         *
2883         * @deprecated Use {@link WifiManager} instead
2884         */
2885        @Deprecated
2886        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
2887
2888        private static final Validator WIFI_STATIC_DNS2_VALIDATOR = sLenientIpAddressValidator;
2889
2890        /**
2891         * Determines whether remote devices may discover and/or connect to
2892         * this device.
2893         * <P>Type: INT</P>
2894         * 2 -- discoverable and connectable
2895         * 1 -- connectable but not discoverable
2896         * 0 -- neither connectable nor discoverable
2897         */
2898        public static final String BLUETOOTH_DISCOVERABILITY =
2899            "bluetooth_discoverability";
2900
2901        private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
2902                new InclusiveIntegerRangeValidator(0, 2);
2903
2904        /**
2905         * Bluetooth discoverability timeout.  If this value is nonzero, then
2906         * Bluetooth becomes discoverable for a certain number of seconds,
2907         * after which is becomes simply connectable.  The value is in seconds.
2908         */
2909        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
2910            "bluetooth_discoverability_timeout";
2911
2912        private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
2913                sNonNegativeIntegerValidator;
2914
2915        /**
2916         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
2917         * instead
2918         */
2919        @Deprecated
2920        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
2921
2922        /**
2923         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
2924         * instead
2925         */
2926        @Deprecated
2927        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
2928
2929        /**
2930         * @deprecated Use
2931         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
2932         * instead
2933         */
2934        @Deprecated
2935        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
2936            "lock_pattern_tactile_feedback_enabled";
2937
2938        /**
2939         * A formatted string of the next alarm that is set, or the empty string
2940         * if there is no alarm set.
2941         *
2942         * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
2943         */
2944        @Deprecated
2945        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
2946
2947        private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
2948            private static final int MAX_LENGTH = 1000;
2949
2950            @Override
2951            public boolean validate(String value) {
2952                // TODO: No idea what the correct format is.
2953                return value == null || value.length() < MAX_LENGTH;
2954            }
2955        };
2956
2957        /**
2958         * Scaling factor for fonts, float.
2959         */
2960        public static final String FONT_SCALE = "font_scale";
2961
2962        private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
2963            @Override
2964            public boolean validate(String value) {
2965                try {
2966                    return Float.parseFloat(value) >= 0;
2967                } catch (NumberFormatException e) {
2968                    return false;
2969                }
2970            }
2971        };
2972
2973        /**
2974         * The serialized system locale value.
2975         *
2976         * Do not use this value directory.
2977         * To get system locale, use {@link LocaleList#getDefault} instead.
2978         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
2979         * instead.
2980         * @hide
2981         */
2982        public static final String SYSTEM_LOCALES = "system_locales";
2983
2984
2985        /**
2986         * Name of an application package to be debugged.
2987         *
2988         * @deprecated Use {@link Global#DEBUG_APP} instead
2989         */
2990        @Deprecated
2991        public static final String DEBUG_APP = Global.DEBUG_APP;
2992
2993        /**
2994         * If 1, when launching DEBUG_APP it will wait for the debugger before
2995         * starting user code.  If 0, it will run normally.
2996         *
2997         * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
2998         */
2999        @Deprecated
3000        public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;
3001
3002        /**
3003         * Whether or not to dim the screen. 0=no  1=yes
3004         * @deprecated This setting is no longer used.
3005         */
3006        @Deprecated
3007        public static final String DIM_SCREEN = "dim_screen";
3008
3009        private static final Validator DIM_SCREEN_VALIDATOR = sBooleanValidator;
3010
3011        /**
3012         * The amount of time in milliseconds before the device goes to sleep or begins
3013         * to dream after a period of inactivity.  This value is also known as the
3014         * user activity timeout period since the screen isn't necessarily turned off
3015         * when it expires.
3016         */
3017        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
3018
3019        private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR = sNonNegativeIntegerValidator;
3020
3021        /**
3022         * The screen backlight brightness between 0 and 255.
3023         */
3024        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
3025
3026        private static final Validator SCREEN_BRIGHTNESS_VALIDATOR =
3027                new InclusiveIntegerRangeValidator(0, 255);
3028
3029        /**
3030         * The screen backlight brightness between 0 and 255.
3031         * @hide
3032         */
3033        public static final String SCREEN_BRIGHTNESS_FOR_VR = "screen_brightness_for_vr";
3034
3035        private static final Validator SCREEN_BRIGHTNESS_FOR_VR_VALIDATOR =
3036                new InclusiveIntegerRangeValidator(0, 255);
3037
3038        /**
3039         * Control whether to enable automatic brightness mode.
3040         */
3041        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
3042
3043        private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = sBooleanValidator;
3044
3045        /**
3046         * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
3047         * or less (<0.0 >-1.0) bright.
3048         * @hide
3049         */
3050        public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";
3051
3052        private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
3053                new InclusiveFloatRangeValidator(-1, 1);
3054
3055        /**
3056         * SCREEN_BRIGHTNESS_MODE value for manual mode.
3057         */
3058        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
3059
3060        /**
3061         * SCREEN_BRIGHTNESS_MODE value for automatic mode.
3062         */
3063        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
3064
3065        /**
3066         * Control whether the process CPU usage meter should be shown.
3067         *
3068         * @deprecated This functionality is no longer available as of
3069         * {@link android.os.Build.VERSION_CODES#N_MR1}.
3070         */
3071        @Deprecated
3072        public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;
3073
3074        /**
3075         * If 1, the activity manager will aggressively finish activities and
3076         * processes as soon as they are no longer needed.  If 0, the normal
3077         * extended lifetime is used.
3078         *
3079         * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
3080         */
3081        @Deprecated
3082        public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;
3083
3084        /**
3085         * Determines which streams are affected by ringer mode changes. The
3086         * stream type's bit should be set to 1 if it should be muted when going
3087         * into an inaudible ringer mode.
3088         */
3089        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
3090
3091        private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
3092                sNonNegativeIntegerValidator;
3093
3094        /**
3095          * Determines which streams are affected by mute. The
3096          * stream type's bit should be set to 1 if it should be muted when a mute request
3097          * is received.
3098          */
3099        public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
3100
3101        private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
3102                sNonNegativeIntegerValidator;
3103
3104        /**
3105         * Whether vibrate is on for different events. This is used internally,
3106         * changing this value will not change the vibrate. See AudioManager.
3107         */
3108        public static final String VIBRATE_ON = "vibrate_on";
3109
3110        private static final Validator VIBRATE_ON_VALIDATOR = sBooleanValidator;
3111
3112        /**
3113         * If 1, redirects the system vibrator to all currently attached input devices
3114         * that support vibration.  If there are no such input devices, then the system
3115         * vibrator is used instead.
3116         * If 0, does not register the system vibrator.
3117         *
3118         * This setting is mainly intended to provide a compatibility mechanism for
3119         * applications that only know about the system vibrator and do not use the
3120         * input device vibrator API.
3121         *
3122         * @hide
3123         */
3124        public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";
3125
3126        private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = sBooleanValidator;
3127
3128        /**
3129         * Ringer volume. This is used internally, changing this value will not
3130         * change the volume. See AudioManager.
3131         *
3132         * @removed Not used by anything since API 2.
3133         */
3134        public static final String VOLUME_RING = "volume_ring";
3135
3136        /**
3137         * System/notifications volume. This is used internally, changing this
3138         * value will not change the volume. See AudioManager.
3139         *
3140         * @removed Not used by anything since API 2.
3141         */
3142        public static final String VOLUME_SYSTEM = "volume_system";
3143
3144        /**
3145         * Voice call volume. This is used internally, changing this value will
3146         * not change the volume. See AudioManager.
3147         *
3148         * @removed Not used by anything since API 2.
3149         */
3150        public static final String VOLUME_VOICE = "volume_voice";
3151
3152        /**
3153         * Music/media/gaming volume. This is used internally, changing this
3154         * value will not change the volume. See AudioManager.
3155         *
3156         * @removed Not used by anything since API 2.
3157         */
3158        public static final String VOLUME_MUSIC = "volume_music";
3159
3160        /**
3161         * Alarm volume. This is used internally, changing this
3162         * value will not change the volume. See AudioManager.
3163         *
3164         * @removed Not used by anything since API 2.
3165         */
3166        public static final String VOLUME_ALARM = "volume_alarm";
3167
3168        /**
3169         * Notification volume. This is used internally, changing this
3170         * value will not change the volume. See AudioManager.
3171         *
3172         * @removed Not used by anything since API 2.
3173         */
3174        public static final String VOLUME_NOTIFICATION = "volume_notification";
3175
3176        /**
3177         * Bluetooth Headset volume. This is used internally, changing this value will
3178         * not change the volume. See AudioManager.
3179         *
3180         * @removed Not used by anything since API 2.
3181         */
3182        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
3183
3184        /**
3185         * Master volume (float in the range 0.0f to 1.0f).
3186         *
3187         * @hide
3188         */
3189        public static final String VOLUME_MASTER = "volume_master";
3190
3191        /**
3192         * Master mono (int 1 = mono, 0 = normal).
3193         *
3194         * @hide
3195         */
3196        public static final String MASTER_MONO = "master_mono";
3197
3198        private static final Validator MASTER_MONO_VALIDATOR = sBooleanValidator;
3199
3200        /**
3201         * Whether the notifications should use the ring volume (value of 1) or
3202         * a separate notification volume (value of 0). In most cases, users
3203         * will have this enabled so the notification and ringer volumes will be
3204         * the same. However, power users can disable this and use the separate
3205         * notification volume control.
3206         * <p>
3207         * Note: This is a one-off setting that will be removed in the future
3208         * when there is profile support. For this reason, it is kept hidden
3209         * from the public APIs.
3210         *
3211         * @hide
3212         * @deprecated
3213         */
3214        @Deprecated
3215        public static final String NOTIFICATIONS_USE_RING_VOLUME =
3216            "notifications_use_ring_volume";
3217
3218        private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = sBooleanValidator;
3219
3220        /**
3221         * Whether silent mode should allow vibration feedback. This is used
3222         * internally in AudioService and the Sound settings activity to
3223         * coordinate decoupling of vibrate and silent modes. This setting
3224         * will likely be removed in a future release with support for
3225         * audio/vibe feedback profiles.
3226         *
3227         * Not used anymore. On devices with vibrator, the user explicitly selects
3228         * silent or vibrate mode.
3229         * Kept for use by legacy database upgrade code in DatabaseHelper.
3230         * @hide
3231         */
3232        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
3233
3234        private static final Validator VIBRATE_IN_SILENT_VALIDATOR = sBooleanValidator;
3235
3236        /**
3237         * The mapping of stream type (integer) to its setting.
3238         *
3239         * @removed  Not used by anything since API 2.
3240         */
3241        public static final String[] VOLUME_SETTINGS = {
3242            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
3243            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
3244        };
3245
3246        /**
3247         * Appended to various volume related settings to record the previous
3248         * values before they the settings were affected by a silent/vibrate
3249         * ringer mode change.
3250         *
3251         * @removed  Not used by anything since API 2.
3252         */
3253        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
3254
3255        /**
3256         * Persistent store for the system-wide default ringtone URI.
3257         * <p>
3258         * If you need to play the default ringtone at any given time, it is recommended
3259         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
3260         * to the set default ringtone at the time of playing.
3261         *
3262         * @see #DEFAULT_RINGTONE_URI
3263         */
3264        public static final String RINGTONE = "ringtone";
3265
3266        private static final Validator RINGTONE_VALIDATOR = sUriValidator;
3267
3268        /**
3269         * A {@link Uri} that will point to the current default ringtone at any
3270         * given time.
3271         * <p>
3272         * If the current default ringtone is in the DRM provider and the caller
3273         * does not have permission, the exception will be a
3274         * FileNotFoundException.
3275         */
3276        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
3277
3278        /** {@hide} */
3279        public static final String RINGTONE_CACHE = "ringtone_cache";
3280        /** {@hide} */
3281        public static final Uri RINGTONE_CACHE_URI = getUriFor(RINGTONE_CACHE);
3282
3283        /**
3284         * Persistent store for the system-wide default notification sound.
3285         *
3286         * @see #RINGTONE
3287         * @see #DEFAULT_NOTIFICATION_URI
3288         */
3289        public static final String NOTIFICATION_SOUND = "notification_sound";
3290
3291        private static final Validator NOTIFICATION_SOUND_VALIDATOR = sUriValidator;
3292
3293        /**
3294         * A {@link Uri} that will point to the current default notification
3295         * sound at any given time.
3296         *
3297         * @see #DEFAULT_RINGTONE_URI
3298         */
3299        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
3300
3301        /** {@hide} */
3302        public static final String NOTIFICATION_SOUND_CACHE = "notification_sound_cache";
3303        /** {@hide} */
3304        public static final Uri NOTIFICATION_SOUND_CACHE_URI = getUriFor(NOTIFICATION_SOUND_CACHE);
3305
3306        /**
3307         * Persistent store for the system-wide default alarm alert.
3308         *
3309         * @see #RINGTONE
3310         * @see #DEFAULT_ALARM_ALERT_URI
3311         */
3312        public static final String ALARM_ALERT = "alarm_alert";
3313
3314        private static final Validator ALARM_ALERT_VALIDATOR = sUriValidator;
3315
3316        /**
3317         * A {@link Uri} that will point to the current default alarm alert at
3318         * any given time.
3319         *
3320         * @see #DEFAULT_ALARM_ALERT_URI
3321         */
3322        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
3323
3324        /** {@hide} */
3325        public static final String ALARM_ALERT_CACHE = "alarm_alert_cache";
3326        /** {@hide} */
3327        public static final Uri ALARM_ALERT_CACHE_URI = getUriFor(ALARM_ALERT_CACHE);
3328
3329        /**
3330         * Persistent store for the system default media button event receiver.
3331         *
3332         * @hide
3333         */
3334        public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";
3335
3336        private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = new Validator() {
3337            @Override
3338            public boolean validate(String value) {
3339                try {
3340                    ComponentName.unflattenFromString(value);
3341                    return true;
3342                } catch (NullPointerException e) {
3343                    return false;
3344                }
3345            }
3346        };
3347
3348        /**
3349         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
3350         */
3351        public static final String TEXT_AUTO_REPLACE = "auto_replace";
3352
3353        private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = sBooleanValidator;
3354
3355        /**
3356         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
3357         */
3358        public static final String TEXT_AUTO_CAPS = "auto_caps";
3359
3360        private static final Validator TEXT_AUTO_CAPS_VALIDATOR = sBooleanValidator;
3361
3362        /**
3363         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
3364         * feature converts two spaces to a "." and space.
3365         */
3366        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
3367
3368        private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = sBooleanValidator;
3369
3370        /**
3371         * Setting to showing password characters in text editors. 1 = On, 0 = Off
3372         */
3373        public static final String TEXT_SHOW_PASSWORD = "show_password";
3374
3375        private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = sBooleanValidator;
3376
3377        public static final String SHOW_GTALK_SERVICE_STATUS =
3378                "SHOW_GTALK_SERVICE_STATUS";
3379
3380        private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = sBooleanValidator;
3381
3382        /**
3383         * Name of activity to use for wallpaper on the home screen.
3384         *
3385         * @deprecated Use {@link WallpaperManager} instead.
3386         */
3387        @Deprecated
3388        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
3389
3390        private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
3391            private static final int MAX_LENGTH = 1000;
3392
3393            @Override
3394            public boolean validate(String value) {
3395                if (value != null && value.length() > MAX_LENGTH) {
3396                    return false;
3397                }
3398                return ComponentName.unflattenFromString(value) != null;
3399            }
3400        };
3401
3402        /**
3403         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
3404         * instead
3405         */
3406        @Deprecated
3407        public static final String AUTO_TIME = Global.AUTO_TIME;
3408
3409        /**
3410         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
3411         * instead
3412         */
3413        @Deprecated
3414        public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;
3415
3416        /**
3417         * Display times as 12 or 24 hours
3418         *   12
3419         *   24
3420         */
3421        public static final String TIME_12_24 = "time_12_24";
3422
3423        /** @hide */
3424        public static final Validator TIME_12_24_VALIDATOR =
3425                new DiscreteValueValidator(new String[] {"12", "24"});
3426
3427        /**
3428         * Date format string
3429         *   mm/dd/yyyy
3430         *   dd/mm/yyyy
3431         *   yyyy/mm/dd
3432         */
3433        public static final String DATE_FORMAT = "date_format";
3434
3435        /** @hide */
3436        public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
3437            @Override
3438            public boolean validate(String value) {
3439                try {
3440                    new SimpleDateFormat(value);
3441                    return true;
3442                } catch (IllegalArgumentException e) {
3443                    return false;
3444                }
3445            }
3446        };
3447
3448        /**
3449         * Whether the setup wizard has been run before (on first boot), or if
3450         * it still needs to be run.
3451         *
3452         * nonzero = it has been run in the past
3453         * 0 = it has not been run in the past
3454         */
3455        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
3456
3457        /** @hide */
3458        public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = sBooleanValidator;
3459
3460        /**
3461         * Scaling factor for normal window animations. Setting to 0 will disable window
3462         * animations.
3463         *
3464         * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
3465         */
3466        @Deprecated
3467        public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;
3468
3469        /**
3470         * Scaling factor for activity transition animations. Setting to 0 will disable window
3471         * animations.
3472         *
3473         * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
3474         */
3475        @Deprecated
3476        public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;
3477
3478        /**
3479         * Scaling factor for Animator-based animations. This affects both the start delay and
3480         * duration of all such animations. Setting to 0 will cause animations to end immediately.
3481         * The default value is 1.
3482         *
3483         * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
3484         */
3485        @Deprecated
3486        public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;
3487
3488        /**
3489         * Control whether the accelerometer will be used to change screen
3490         * orientation.  If 0, it will not be used unless explicitly requested
3491         * by the application; if 1, it will be used by default unless explicitly
3492         * disabled by the application.
3493         */
3494        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
3495
3496        /** @hide */
3497        public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = sBooleanValidator;
3498
3499        /**
3500         * Default screen rotation when no other policy applies.
3501         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
3502         * preference, this rotation value will be used. Must be one of the
3503         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
3504         *
3505         * @see android.view.Display#getRotation
3506         */
3507        public static final String USER_ROTATION = "user_rotation";
3508
3509        /** @hide */
3510        public static final Validator USER_ROTATION_VALIDATOR =
3511                new InclusiveIntegerRangeValidator(0, 3);
3512
3513        /**
3514         * Control whether the rotation lock toggle in the System UI should be hidden.
3515         * Typically this is done for accessibility purposes to make it harder for
3516         * the user to accidentally toggle the rotation lock while the display rotation
3517         * has been locked for accessibility.
3518         *
3519         * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
3520         * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
3521         *
3522         * @hide
3523         */
3524        public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
3525                "hide_rotation_lock_toggle_for_accessibility";
3526
3527        /** @hide */
3528        public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
3529                sBooleanValidator;
3530
3531        /**
3532         * Whether the phone vibrates when it is ringing due to an incoming call. This will
3533         * be used by Phone and Setting apps; it shouldn't affect other apps.
3534         * The value is boolean (1 or 0).
3535         *
3536         * Note: this is not same as "vibrate on ring", which had been available until ICS.
3537         * It was about AudioManager's setting and thus affected all the applications which
3538         * relied on the setting, while this is purely about the vibration setting for incoming
3539         * calls.
3540         */
3541        public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";
3542
3543        /** @hide */
3544        public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = sBooleanValidator;
3545
3546        /**
3547         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
3548         * boolean (1 or 0).
3549         */
3550        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
3551
3552        /** @hide */
3553        public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3554
3555        /**
3556         * CDMA only settings
3557         * DTMF tone type played by the dialer when dialing.
3558         *                 0 = Normal
3559         *                 1 = Long
3560         */
3561        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
3562
3563        /** @hide */
3564        public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3565
3566        /**
3567         * Whether the hearing aid is enabled. The value is
3568         * boolean (1 or 0).
3569         * @hide
3570         */
3571        public static final String HEARING_AID = "hearing_aid";
3572
3573        /** @hide */
3574        public static final Validator HEARING_AID_VALIDATOR = sBooleanValidator;
3575
3576        /**
3577         * CDMA only settings
3578         * TTY Mode
3579         * 0 = OFF
3580         * 1 = FULL
3581         * 2 = VCO
3582         * 3 = HCO
3583         * @hide
3584         */
3585        public static final String TTY_MODE = "tty_mode";
3586
3587        /** @hide */
3588        public static final Validator TTY_MODE_VALIDATOR = new InclusiveIntegerRangeValidator(0, 3);
3589
3590        /**
3591         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
3592         * boolean (1 or 0).
3593         */
3594        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
3595
3596        /** @hide */
3597        public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = sBooleanValidator;
3598
3599        /**
3600         * Whether the haptic feedback (long presses, ...) are enabled. The value is
3601         * boolean (1 or 0).
3602         */
3603        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
3604
3605        /** @hide */
3606        public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = sBooleanValidator;
3607
3608        /**
3609         * @deprecated Each application that shows web suggestions should have its own
3610         * setting for this.
3611         */
3612        @Deprecated
3613        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
3614
3615        /** @hide */
3616        public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = sBooleanValidator;
3617
3618        /**
3619         * Whether the notification LED should repeatedly flash when a notification is
3620         * pending. The value is boolean (1 or 0).
3621         * @hide
3622         */
3623        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
3624
3625        /** @hide */
3626        public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = sBooleanValidator;
3627
3628        /**
3629         * Show pointer location on screen?
3630         * 0 = no
3631         * 1 = yes
3632         * @hide
3633         */
3634        public static final String POINTER_LOCATION = "pointer_location";
3635
3636        /** @hide */
3637        public static final Validator POINTER_LOCATION_VALIDATOR = sBooleanValidator;
3638
3639        /**
3640         * Show touch positions on screen?
3641         * 0 = no
3642         * 1 = yes
3643         * @hide
3644         */
3645        public static final String SHOW_TOUCHES = "show_touches";
3646
3647        /** @hide */
3648        public static final Validator SHOW_TOUCHES_VALIDATOR = sBooleanValidator;
3649
3650        /**
3651         * Log raw orientation data from
3652         * {@link com.android.server.policy.WindowOrientationListener} for use with the
3653         * orientationplot.py tool.
3654         * 0 = no
3655         * 1 = yes
3656         * @hide
3657         */
3658        public static final String WINDOW_ORIENTATION_LISTENER_LOG =
3659                "window_orientation_listener_log";
3660
3661        /** @hide */
3662        public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = sBooleanValidator;
3663
3664        /**
3665         * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
3666         * instead
3667         * @hide
3668         */
3669        @Deprecated
3670        public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;
3671
3672        /**
3673         * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
3674         * instead
3675         * @hide
3676         */
3677        @Deprecated
3678        public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;
3679
3680        /**
3681         * Whether to play sounds when the keyguard is shown and dismissed.
3682         * @hide
3683         */
3684        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
3685
3686        /** @hide */
3687        public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = sBooleanValidator;
3688
3689        /**
3690         * Whether the lockscreen should be completely disabled.
3691         * @hide
3692         */
3693        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
3694
3695        /** @hide */
3696        public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = sBooleanValidator;
3697
3698        /**
3699         * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
3700         * instead
3701         * @hide
3702         */
3703        @Deprecated
3704        public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;
3705
3706        /**
3707         * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
3708         * instead
3709         * @hide
3710         */
3711        @Deprecated
3712        public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;
3713
3714        /**
3715         * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
3716         * instead
3717         * @hide
3718         */
3719        @Deprecated
3720        public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;
3721
3722        /**
3723         * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
3724         * instead
3725         * @hide
3726         */
3727        @Deprecated
3728        public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;
3729
3730        /**
3731         * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
3732         * instead
3733         * @hide
3734         */
3735        @Deprecated
3736        public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;
3737
3738        /**
3739         * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
3740         * instead
3741         * @hide
3742         */
3743        @Deprecated
3744        public static final String LOCK_SOUND = Global.LOCK_SOUND;
3745
3746        /**
3747         * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
3748         * instead
3749         * @hide
3750         */
3751        @Deprecated
3752        public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;
3753
3754        /**
3755         * Receive incoming SIP calls?
3756         * 0 = no
3757         * 1 = yes
3758         * @hide
3759         */
3760        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
3761
3762        /** @hide */
3763        public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = sBooleanValidator;
3764
3765        /**
3766         * Call Preference String.
3767         * "SIP_ALWAYS" : Always use SIP with network access
3768         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
3769         * @hide
3770         */
3771        public static final String SIP_CALL_OPTIONS = "sip_call_options";
3772
3773        /** @hide */
3774        public static final Validator SIP_CALL_OPTIONS_VALIDATOR = new DiscreteValueValidator(
3775                new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});
3776
3777        /**
3778         * One of the sip call options: Always use SIP with network access.
3779         * @hide
3780         */
3781        public static final String SIP_ALWAYS = "SIP_ALWAYS";
3782
3783        /** @hide */
3784        public static final Validator SIP_ALWAYS_VALIDATOR = sBooleanValidator;
3785
3786        /**
3787         * One of the sip call options: Only if destination is a SIP address.
3788         * @hide
3789         */
3790        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
3791
3792        /** @hide */
3793        public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = sBooleanValidator;
3794
3795        /**
3796         * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
3797         * the user should be prompted each time a call is made whether it should be placed using
3798         * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
3799         * SIP_ADDRESS_ONLY.
3800         * @hide
3801         */
3802        @Deprecated
3803        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
3804
3805        /** @hide */
3806        public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = sBooleanValidator;
3807
3808        /**
3809         * Pointer speed setting.
3810         * This is an integer value in a range between -7 and +7, so there are 15 possible values.
3811         *   -7 = slowest
3812         *    0 = default speed
3813         *   +7 = fastest
3814         * @hide
3815         */
3816        public static final String POINTER_SPEED = "pointer_speed";
3817
3818        /** @hide */
3819        public static final Validator POINTER_SPEED_VALIDATOR =
3820                new InclusiveFloatRangeValidator(-7, 7);
3821
3822        /**
3823         * Whether lock-to-app will be triggered by long-press on recents.
3824         * @hide
3825         */
3826        public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";
3827
3828        /** @hide */
3829        public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = sBooleanValidator;
3830
3831        /**
3832         * I am the lolrus.
3833         * <p>
3834         * Nonzero values indicate that the user has a bukkit.
3835         * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
3836         * @hide
3837         */
3838        public static final String EGG_MODE = "egg_mode";
3839
3840        /** @hide */
3841        public static final Validator EGG_MODE_VALIDATOR = new Validator() {
3842            @Override
3843            public boolean validate(String value) {
3844                try {
3845                    return Long.parseLong(value) >= 0;
3846                } catch (NumberFormatException e) {
3847                    return false;
3848                }
3849            }
3850        };
3851
3852        /**
3853         * Setting to determine whether or not to show the battery percentage in the status bar.
3854         *    0 - Don't show percentage
3855         *    1 - Show percentage
3856         * @hide
3857         */
3858        public static final String SHOW_BATTERY_PERCENT = "status_bar_show_battery_percent";
3859
3860        /** @hide */
3861        private static final Validator SHOW_BATTERY_PERCENT_VALIDATOR = sBooleanValidator;
3862
3863        /**
3864         * IMPORTANT: If you add a new public settings you also have to add it to
3865         * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
3866         * it to PRIVATE_SETTINGS below. Also add a validator that can validate
3867         * the setting value. See an example above.
3868         */
3869
3870        /**
3871         * Settings to backup. This is here so that it's in the same place as the settings
3872         * keys and easy to update.
3873         *
3874         * NOTE: Settings are backed up and restored in the order they appear
3875         *       in this array. If you have one setting depending on another,
3876         *       make sure that they are ordered appropriately.
3877         *
3878         * @hide
3879         */
3880        public static final String[] SETTINGS_TO_BACKUP = {
3881            STAY_ON_WHILE_PLUGGED_IN,   // moved to global
3882            WIFI_USE_STATIC_IP,
3883            WIFI_STATIC_IP,
3884            WIFI_STATIC_GATEWAY,
3885            WIFI_STATIC_NETMASK,
3886            WIFI_STATIC_DNS1,
3887            WIFI_STATIC_DNS2,
3888            BLUETOOTH_DISCOVERABILITY,
3889            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3890            FONT_SCALE,
3891            DIM_SCREEN,
3892            SCREEN_OFF_TIMEOUT,
3893            SCREEN_BRIGHTNESS,
3894            SCREEN_BRIGHTNESS_MODE,
3895            SCREEN_AUTO_BRIGHTNESS_ADJ,
3896            SCREEN_BRIGHTNESS_FOR_VR,
3897            VIBRATE_INPUT_DEVICES,
3898            MODE_RINGER_STREAMS_AFFECTED,
3899            TEXT_AUTO_REPLACE,
3900            TEXT_AUTO_CAPS,
3901            TEXT_AUTO_PUNCTUATE,
3902            TEXT_SHOW_PASSWORD,
3903            AUTO_TIME,                  // moved to global
3904            AUTO_TIME_ZONE,             // moved to global
3905            TIME_12_24,
3906            DATE_FORMAT,
3907            DTMF_TONE_WHEN_DIALING,
3908            DTMF_TONE_TYPE_WHEN_DIALING,
3909            HEARING_AID,
3910            TTY_MODE,
3911            MASTER_MONO,
3912            SOUND_EFFECTS_ENABLED,
3913            HAPTIC_FEEDBACK_ENABLED,
3914            POWER_SOUNDS_ENABLED,       // moved to global
3915            DOCK_SOUNDS_ENABLED,        // moved to global
3916            LOCKSCREEN_SOUNDS_ENABLED,
3917            SHOW_WEB_SUGGESTIONS,
3918            SIP_CALL_OPTIONS,
3919            SIP_RECEIVE_CALLS,
3920            POINTER_SPEED,
3921            VIBRATE_WHEN_RINGING,
3922            RINGTONE,
3923            LOCK_TO_APP_ENABLED,
3924            NOTIFICATION_SOUND,
3925            ACCELEROMETER_ROTATION,
3926            SHOW_BATTERY_PERCENT
3927        };
3928
3929        /**
3930         * These are all public system settings
3931         *
3932         * @hide
3933         */
3934        public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
3935        static {
3936            PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
3937            PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
3938            PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
3939            PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
3940            PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
3941            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
3942            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
3943            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
3944            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
3945            PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
3946            PUBLIC_SETTINGS.add(FONT_SCALE);
3947            PUBLIC_SETTINGS.add(DIM_SCREEN);
3948            PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
3949            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
3950            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
3951            PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
3952            PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
3953            PUBLIC_SETTINGS.add(VIBRATE_ON);
3954            PUBLIC_SETTINGS.add(VOLUME_RING);
3955            PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
3956            PUBLIC_SETTINGS.add(VOLUME_VOICE);
3957            PUBLIC_SETTINGS.add(VOLUME_MUSIC);
3958            PUBLIC_SETTINGS.add(VOLUME_ALARM);
3959            PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
3960            PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
3961            PUBLIC_SETTINGS.add(RINGTONE);
3962            PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
3963            PUBLIC_SETTINGS.add(ALARM_ALERT);
3964            PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
3965            PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
3966            PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
3967            PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
3968            PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
3969            PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
3970            PUBLIC_SETTINGS.add(TIME_12_24);
3971            PUBLIC_SETTINGS.add(DATE_FORMAT);
3972            PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
3973            PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
3974            PUBLIC_SETTINGS.add(USER_ROTATION);
3975            PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
3976            PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
3977            PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
3978            PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
3979            PUBLIC_SETTINGS.add(VIBRATE_WHEN_RINGING);
3980        }
3981
3982        /**
3983         * These are all hidden system settings.
3984         *
3985         * @hide
3986         */
3987        public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
3988        static {
3989            PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
3990            PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
3991            PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
3992            PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
3993            PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
3994            PRIVATE_SETTINGS.add(VOLUME_MASTER);
3995            PRIVATE_SETTINGS.add(MASTER_MONO);
3996            PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
3997            PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
3998            PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
3999            PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
4000            PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
4001            PRIVATE_SETTINGS.add(HEARING_AID);
4002            PRIVATE_SETTINGS.add(TTY_MODE);
4003            PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
4004            PRIVATE_SETTINGS.add(POINTER_LOCATION);
4005            PRIVATE_SETTINGS.add(SHOW_TOUCHES);
4006            PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
4007            PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
4008            PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
4009            PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
4010            PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
4011            PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
4012            PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
4013            PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
4014            PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
4015            PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
4016            PRIVATE_SETTINGS.add(LOCK_SOUND);
4017            PRIVATE_SETTINGS.add(UNLOCK_SOUND);
4018            PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
4019            PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
4020            PRIVATE_SETTINGS.add(SIP_ALWAYS);
4021            PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
4022            PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
4023            PRIVATE_SETTINGS.add(POINTER_SPEED);
4024            PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
4025            PRIVATE_SETTINGS.add(EGG_MODE);
4026            PRIVATE_SETTINGS.add(SHOW_BATTERY_PERCENT);
4027        }
4028
4029        /**
4030         * These are all public system settings
4031         *
4032         * @hide
4033         */
4034        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
4035        static {
4036            VALIDATORS.put(END_BUTTON_BEHAVIOR,END_BUTTON_BEHAVIOR_VALIDATOR);
4037            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
4038            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
4039            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
4040                    BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
4041            VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
4042            VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
4043            VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
4044            VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
4045            VALIDATORS.put(SCREEN_BRIGHTNESS, SCREEN_BRIGHTNESS_VALIDATOR);
4046            VALIDATORS.put(SCREEN_BRIGHTNESS_FOR_VR, SCREEN_BRIGHTNESS_FOR_VR_VALIDATOR);
4047            VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
4048            VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
4049            VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
4050            VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
4051            VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
4052            VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
4053            VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
4054            VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
4055            VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
4056            VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
4057            VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
4058            VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
4059            VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
4060            VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
4061            VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
4062            VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
4063            VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
4064            VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
4065            VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
4066            VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
4067            VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
4068            VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
4069            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
4070            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
4071            VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
4072            VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
4073            VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
4074            VALIDATORS.put(MASTER_MONO, MASTER_MONO_VALIDATOR);
4075            VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
4076            VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
4077            VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
4078            VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
4079                    HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
4080            VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
4081            VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
4082            VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
4083            VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
4084            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
4085            VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
4086            VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
4087            VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
4088                    WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
4089            VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
4090            VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
4091            VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
4092            VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
4093            VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
4094            VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
4095            VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
4096            VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
4097            VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
4098            VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
4099            VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
4100            VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
4101            VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
4102            VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
4103            VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
4104            VALIDATORS.put(SHOW_BATTERY_PERCENT, SHOW_BATTERY_PERCENT_VALIDATOR);
4105        }
4106
4107        /**
4108         * These entries are considered common between the personal and the managed profile,
4109         * since the managed profile doesn't get to change them.
4110         */
4111        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
4112        static {
4113            CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
4114            CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
4115            CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
4116            CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
4117            CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
4118        }
4119
4120        /** @hide */
4121        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
4122            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
4123        }
4124
4125        /**
4126         * These entries should be cloned from this profile's parent only if the dependency's
4127         * value is true ("1")
4128         *
4129         * Note: the dependencies must be Secure settings
4130         *
4131         * @hide
4132         */
4133        public static final Map<String, String> CLONE_FROM_PARENT_ON_VALUE = new ArrayMap<>();
4134        static {
4135            CLONE_FROM_PARENT_ON_VALUE.put(RINGTONE, Secure.SYNC_PARENT_SOUNDS);
4136            CLONE_FROM_PARENT_ON_VALUE.put(NOTIFICATION_SOUND, Secure.SYNC_PARENT_SOUNDS);
4137            CLONE_FROM_PARENT_ON_VALUE.put(ALARM_ALERT, Secure.SYNC_PARENT_SOUNDS);
4138        }
4139
4140        /** @hide */
4141        public static void getCloneFromParentOnValueSettings(Map<String, String> outMap) {
4142            outMap.putAll(CLONE_FROM_PARENT_ON_VALUE);
4143        }
4144
4145        /**
4146         * System settings which can be accessed by instant apps.
4147         * @hide
4148         */
4149        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
4150        static {
4151            INSTANT_APP_SETTINGS.add(TEXT_AUTO_REPLACE);
4152            INSTANT_APP_SETTINGS.add(TEXT_AUTO_CAPS);
4153            INSTANT_APP_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
4154            INSTANT_APP_SETTINGS.add(TEXT_SHOW_PASSWORD);
4155            INSTANT_APP_SETTINGS.add(DATE_FORMAT);
4156            INSTANT_APP_SETTINGS.add(FONT_SCALE);
4157            INSTANT_APP_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
4158            INSTANT_APP_SETTINGS.add(TIME_12_24);
4159            INSTANT_APP_SETTINGS.add(SOUND_EFFECTS_ENABLED);
4160        }
4161
4162        /**
4163         * When to use Wi-Fi calling
4164         *
4165         * @see android.telephony.TelephonyManager.WifiCallingChoices
4166         * @hide
4167         */
4168        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
4169
4170        // Settings moved to Settings.Secure
4171
4172        /**
4173         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
4174         * instead
4175         */
4176        @Deprecated
4177        public static final String ADB_ENABLED = Global.ADB_ENABLED;
4178
4179        /**
4180         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
4181         */
4182        @Deprecated
4183        public static final String ANDROID_ID = Secure.ANDROID_ID;
4184
4185        /**
4186         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
4187         */
4188        @Deprecated
4189        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
4190
4191        /**
4192         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
4193         */
4194        @Deprecated
4195        public static final String DATA_ROAMING = Global.DATA_ROAMING;
4196
4197        /**
4198         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
4199         */
4200        @Deprecated
4201        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
4202
4203        /**
4204         * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
4205         */
4206        @Deprecated
4207        public static final String HTTP_PROXY = Global.HTTP_PROXY;
4208
4209        /**
4210         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
4211         */
4212        @Deprecated
4213        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
4214
4215        /**
4216         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
4217         * instead
4218         */
4219        @Deprecated
4220        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
4221
4222        /**
4223         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
4224         */
4225        @Deprecated
4226        public static final String LOGGING_ID = Secure.LOGGING_ID;
4227
4228        /**
4229         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
4230         */
4231        @Deprecated
4232        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
4233
4234        /**
4235         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
4236         * instead
4237         */
4238        @Deprecated
4239        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
4240
4241        /**
4242         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
4243         * instead
4244         */
4245        @Deprecated
4246        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
4247
4248        /**
4249         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
4250         * instead
4251         */
4252        @Deprecated
4253        public static final String PARENTAL_CONTROL_REDIRECT_URL =
4254            Secure.PARENTAL_CONTROL_REDIRECT_URL;
4255
4256        /**
4257         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
4258         */
4259        @Deprecated
4260        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
4261
4262        /**
4263         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
4264         */
4265        @Deprecated
4266        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
4267
4268        /**
4269         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
4270         */
4271        @Deprecated
4272        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
4273
4274       /**
4275         * @deprecated Use
4276         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
4277         */
4278        @Deprecated
4279        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
4280
4281        /**
4282         * @deprecated Use
4283         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
4284         */
4285        @Deprecated
4286        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
4287                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
4288
4289        /**
4290         * @deprecated Use
4291         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
4292         */
4293        @Deprecated
4294        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
4295                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
4296
4297        /**
4298         * @deprecated Use
4299         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
4300         */
4301        @Deprecated
4302        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
4303                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
4304
4305        /**
4306         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
4307         * instead
4308         */
4309        @Deprecated
4310        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
4311
4312        /**
4313         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
4314         */
4315        @Deprecated
4316        public static final String WIFI_ON = Global.WIFI_ON;
4317
4318        /**
4319         * @deprecated Use
4320         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
4321         * instead
4322         */
4323        @Deprecated
4324        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
4325                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
4326
4327        /**
4328         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
4329         */
4330        @Deprecated
4331        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
4332
4333        /**
4334         * @deprecated Use
4335         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
4336         */
4337        @Deprecated
4338        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
4339                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
4340
4341        /**
4342         * @deprecated Use
4343         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
4344         */
4345        @Deprecated
4346        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
4347                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
4348
4349        /**
4350         * @deprecated Use
4351         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
4352         * instead
4353         */
4354        @Deprecated
4355        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
4356                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
4357
4358        /**
4359         * @deprecated Use
4360         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
4361         */
4362        @Deprecated
4363        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
4364            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
4365
4366        /**
4367         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
4368         * instead
4369         */
4370        @Deprecated
4371        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
4372
4373        /**
4374         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
4375         */
4376        @Deprecated
4377        public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;
4378
4379        /**
4380         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
4381         */
4382        @Deprecated
4383        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
4384
4385        /**
4386         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
4387         * instead
4388         */
4389        @Deprecated
4390        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
4391
4392        /**
4393         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
4394         * instead
4395         */
4396        @Deprecated
4397        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
4398            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
4399
4400        /**
4401         * Checks if the specified app can modify system settings. As of API
4402         * level 23, an app cannot modify system settings unless it declares the
4403         * {@link android.Manifest.permission#WRITE_SETTINGS}
4404         * permission in its manifest, <em>and</em> the user specifically grants
4405         * the app this capability. To prompt the user to grant this approval,
4406         * the app must send an intent with the action {@link
4407         * android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}, which causes
4408         * the system to display a permission management screen.
4409         *
4410         * @param context App context.
4411         * @return true if the calling app can write to system settings, false otherwise
4412         */
4413        public static boolean canWrite(Context context) {
4414            return isCallingPackageAllowedToWriteSettings(context, Process.myUid(),
4415                    context.getOpPackageName(), false);
4416        }
4417    }
4418
4419    /**
4420     * Secure system settings, containing system preferences that applications
4421     * can read but are not allowed to write.  These are for preferences that
4422     * the user must explicitly modify through the system UI or specialized
4423     * APIs for those values, not modified directly by applications.
4424     */
4425    public static final class Secure extends NameValueTable {
4426        /**
4427         * The content:// style URL for this table
4428         */
4429        public static final Uri CONTENT_URI =
4430            Uri.parse("content://" + AUTHORITY + "/secure");
4431
4432        private static final ContentProviderHolder sProviderHolder =
4433                new ContentProviderHolder(CONTENT_URI);
4434
4435        // Populated lazily, guarded by class object:
4436        private static final NameValueCache sNameValueCache = new NameValueCache(
4437                CONTENT_URI,
4438                CALL_METHOD_GET_SECURE,
4439                CALL_METHOD_PUT_SECURE,
4440                sProviderHolder);
4441
4442        private static ILockSettings sLockSettings = null;
4443
4444        private static boolean sIsSystemProcess;
4445        private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
4446        private static final HashSet<String> MOVED_TO_GLOBAL;
4447        static {
4448            MOVED_TO_LOCK_SETTINGS = new HashSet<>(3);
4449            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
4450            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
4451            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
4452
4453            MOVED_TO_GLOBAL = new HashSet<>();
4454            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
4455            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
4456            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
4457            MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
4458            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
4459            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
4460            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
4461            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
4462            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
4463            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
4464            MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
4465            MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
4466            MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
4467            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
4468            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
4469            MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
4470            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
4471            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
4472            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
4473            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
4474            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
4475            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
4476            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
4477            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
4478            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
4479            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
4480            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
4481            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
4482            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
4483            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
4484            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
4485            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
4486            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
4487            MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
4488            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
4489            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
4490            MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
4491            MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
4492            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
4493            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
4494            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
4495            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
4496            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
4497            MOVED_TO_GLOBAL.add(Settings.Global.SAMPLING_PROFILER_MS);
4498            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
4499            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
4500            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
4501            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
4502            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
4503            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
4504            MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
4505            MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
4506            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
4507            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
4508            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
4509            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
4510            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
4511            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
4512            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4513            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
4514            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
4515            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
4516            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
4517            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
4518            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
4519            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
4520            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED);
4521            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
4522            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
4523            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
4524            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
4525            MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4526            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
4527            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
4528            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
4529            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
4530            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
4531            MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
4532            MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
4533            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
4534            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
4535            MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
4536            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
4537            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
4538            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
4539            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
4540            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
4541            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
4542            MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
4543            MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
4544            MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
4545            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
4546            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
4547            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
4548            MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
4549            MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
4550            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
4551            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
4552            MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
4553            MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
4554            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
4555            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
4556            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
4557            MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
4558            MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
4559            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
4560            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
4561            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
4562            MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
4563            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
4564            MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
4565            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
4566        }
4567
4568        /** @hide */
4569        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
4570            outKeySet.addAll(MOVED_TO_GLOBAL);
4571        }
4572
4573        /**
4574         * Look up a name in the database.
4575         * @param resolver to access the database with
4576         * @param name to look up in the table
4577         * @return the corresponding value, or null if not present
4578         */
4579        public static String getString(ContentResolver resolver, String name) {
4580            return getStringForUser(resolver, name, UserHandle.myUserId());
4581        }
4582
4583        /** @hide */
4584        public static String getStringForUser(ContentResolver resolver, String name,
4585                int userHandle) {
4586            if (MOVED_TO_GLOBAL.contains(name)) {
4587                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4588                        + " to android.provider.Settings.Global.");
4589                return Global.getStringForUser(resolver, name, userHandle);
4590            }
4591
4592            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
4593                synchronized (Secure.class) {
4594                    if (sLockSettings == null) {
4595                        sLockSettings = ILockSettings.Stub.asInterface(
4596                                (IBinder) ServiceManager.getService("lock_settings"));
4597                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
4598                    }
4599                }
4600                if (sLockSettings != null && !sIsSystemProcess) {
4601                    // No context; use the ActivityThread's context as an approximation for
4602                    // determining the target API level.
4603                    Application application = ActivityThread.currentApplication();
4604
4605                    boolean isPreMnc = application != null
4606                            && application.getApplicationInfo() != null
4607                            && application.getApplicationInfo().targetSdkVersion
4608                            <= VERSION_CODES.LOLLIPOP_MR1;
4609                    if (isPreMnc) {
4610                        try {
4611                            return sLockSettings.getString(name, "0", userHandle);
4612                        } catch (RemoteException re) {
4613                            // Fall through
4614                        }
4615                    } else {
4616                        throw new SecurityException("Settings.Secure." + name
4617                                + " is deprecated and no longer accessible."
4618                                + " See API documentation for potential replacements.");
4619                    }
4620                }
4621            }
4622
4623            return sNameValueCache.getStringForUser(resolver, name, userHandle);
4624        }
4625
4626        /**
4627         * Store a name/value pair into the database.
4628         * @param resolver to access the database with
4629         * @param name to store
4630         * @param value to associate with the name
4631         * @return true if the value was set, false on database errors
4632         */
4633        public static boolean putString(ContentResolver resolver, String name, String value) {
4634            return putStringForUser(resolver, name, value, UserHandle.myUserId());
4635        }
4636
4637        /** @hide */
4638        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
4639                int userHandle) {
4640            return putStringForUser(resolver, name, value, null, false, userHandle);
4641        }
4642
4643        /** @hide */
4644        public static boolean putStringForUser(@NonNull ContentResolver resolver,
4645                @NonNull String name, @Nullable String value, @Nullable String tag,
4646                boolean makeDefault, @UserIdInt int userHandle) {
4647            if (LOCATION_MODE.equals(name)) {
4648                // Map LOCATION_MODE to underlying location provider storage API
4649                return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
4650            }
4651            if (MOVED_TO_GLOBAL.contains(name)) {
4652                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4653                        + " to android.provider.Settings.Global");
4654                return Global.putStringForUser(resolver, name, value,
4655                        tag, makeDefault, userHandle);
4656            }
4657            return sNameValueCache.putStringForUser(resolver, name, value, tag,
4658                    makeDefault, userHandle);
4659        }
4660
4661        /**
4662         * Store a name/value pair into the database.
4663         * <p>
4664         * The method takes an optional tag to associate with the setting
4665         * which can be used to clear only settings made by your package and
4666         * associated with this tag by passing the tag to {@link
4667         * #resetToDefaults(ContentResolver, String)}. Anyone can override
4668         * the current tag. Also if another package changes the setting
4669         * then the tag will be set to the one specified in the set call
4670         * which can be null. Also any of the settings setters that do not
4671         * take a tag as an argument effectively clears the tag.
4672         * </p><p>
4673         * For example, if you set settings A and B with tags T1 and T2 and
4674         * another app changes setting A (potentially to the same value), it
4675         * can assign to it a tag T3 (note that now the package that changed
4676         * the setting is not yours). Now if you reset your changes for T1 and
4677         * T2 only setting B will be reset and A not (as it was changed by
4678         * another package) but since A did not change you are in the desired
4679         * initial state. Now if the other app changes the value of A (assuming
4680         * you registered an observer in the beginning) you would detect that
4681         * the setting was changed by another app and handle this appropriately
4682         * (ignore, set back to some value, etc).
4683         * </p><p>
4684         * Also the method takes an argument whether to make the value the
4685         * default for this setting. If the system already specified a default
4686         * value, then the one passed in here will <strong>not</strong>
4687         * be set as the default.
4688         * </p>
4689         *
4690         * @param resolver to access the database with.
4691         * @param name to store.
4692         * @param value to associate with the name.
4693         * @param tag to associate with the setting.
4694         * @param makeDefault whether to make the value the default one.
4695         * @return true if the value was set, false on database errors.
4696         *
4697         * @see #resetToDefaults(ContentResolver, String)
4698         *
4699         * @hide
4700         */
4701        @SystemApi
4702        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
4703        public static boolean putString(@NonNull ContentResolver resolver,
4704                @NonNull String name, @Nullable String value, @Nullable String tag,
4705                boolean makeDefault) {
4706            return putStringForUser(resolver, name, value, tag, makeDefault,
4707                    UserHandle.myUserId());
4708        }
4709
4710        /**
4711         * Reset the settings to their defaults. This would reset <strong>only</strong>
4712         * settings set by the caller's package. Think of it of a way to undo your own
4713         * changes to the global settings. Passing in the optional tag will reset only
4714         * settings changed by your package and associated with this tag.
4715         *
4716         * @param resolver Handle to the content resolver.
4717         * @param tag Optional tag which should be associated with the settings to reset.
4718         *
4719         * @see #putString(ContentResolver, String, String, String, boolean)
4720         *
4721         * @hide
4722         */
4723        @SystemApi
4724        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
4725        public static void resetToDefaults(@NonNull ContentResolver resolver,
4726                @Nullable String tag) {
4727            resetToDefaultsAsUser(resolver, tag, RESET_MODE_PACKAGE_DEFAULTS,
4728                    UserHandle.myUserId());
4729        }
4730
4731        /**
4732         *
4733         * Reset the settings to their defaults for a given user with a specific mode. The
4734         * optional tag argument is valid only for {@link #RESET_MODE_PACKAGE_DEFAULTS}
4735         * allowing resetting the settings made by a package and associated with the tag.
4736         *
4737         * @param resolver Handle to the content resolver.
4738         * @param tag Optional tag which should be associated with the settings to reset.
4739         * @param mode The reset mode.
4740         * @param userHandle The user for which to reset to defaults.
4741         *
4742         * @see #RESET_MODE_PACKAGE_DEFAULTS
4743         * @see #RESET_MODE_UNTRUSTED_DEFAULTS
4744         * @see #RESET_MODE_UNTRUSTED_CHANGES
4745         * @see #RESET_MODE_TRUSTED_DEFAULTS
4746         *
4747         * @hide
4748         */
4749        public static void resetToDefaultsAsUser(@NonNull ContentResolver resolver,
4750                @Nullable String tag, @ResetMode int mode, @IntRange(from = 0) int userHandle) {
4751            try {
4752                Bundle arg = new Bundle();
4753                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
4754                if (tag != null) {
4755                    arg.putString(CALL_METHOD_TAG_KEY, tag);
4756                }
4757                arg.putInt(CALL_METHOD_RESET_MODE_KEY, mode);
4758                IContentProvider cp = sProviderHolder.getProvider(resolver);
4759                cp.call(resolver.getPackageName(), CALL_METHOD_RESET_SECURE, null, arg);
4760            } catch (RemoteException e) {
4761                Log.w(TAG, "Can't reset do defaults for " + CONTENT_URI, e);
4762            }
4763        }
4764
4765        /**
4766         * Construct the content URI for a particular name/value pair,
4767         * useful for monitoring changes with a ContentObserver.
4768         * @param name to look up in the table
4769         * @return the corresponding content URI, or null if not present
4770         */
4771        public static Uri getUriFor(String name) {
4772            if (MOVED_TO_GLOBAL.contains(name)) {
4773                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4774                        + " to android.provider.Settings.Global, returning global URI.");
4775                return Global.getUriFor(Global.CONTENT_URI, name);
4776            }
4777            return getUriFor(CONTENT_URI, name);
4778        }
4779
4780        /**
4781         * Convenience function for retrieving a single secure settings value
4782         * as an integer.  Note that internally setting values are always
4783         * stored as strings; this function converts the string to an integer
4784         * for you.  The default value will be returned if the setting is
4785         * not defined or not an integer.
4786         *
4787         * @param cr The ContentResolver to access.
4788         * @param name The name of the setting to retrieve.
4789         * @param def Value to return if the setting is not defined.
4790         *
4791         * @return The setting's current value, or 'def' if it is not defined
4792         * or not a valid integer.
4793         */
4794        public static int getInt(ContentResolver cr, String name, int def) {
4795            return getIntForUser(cr, name, def, UserHandle.myUserId());
4796        }
4797
4798        /** @hide */
4799        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
4800            if (LOCATION_MODE.equals(name)) {
4801                // Map from to underlying location provider storage API to location mode
4802                return getLocationModeForUser(cr, userHandle);
4803            }
4804            String v = getStringForUser(cr, name, userHandle);
4805            try {
4806                return v != null ? Integer.parseInt(v) : def;
4807            } catch (NumberFormatException e) {
4808                return def;
4809            }
4810        }
4811
4812        /**
4813         * Convenience function for retrieving a single secure settings value
4814         * as an integer.  Note that internally setting values are always
4815         * stored as strings; this function converts the string to an integer
4816         * for you.
4817         * <p>
4818         * This version does not take a default value.  If the setting has not
4819         * been set, or the string value is not a number,
4820         * it throws {@link SettingNotFoundException}.
4821         *
4822         * @param cr The ContentResolver to access.
4823         * @param name The name of the setting to retrieve.
4824         *
4825         * @throws SettingNotFoundException Thrown if a setting by the given
4826         * name can't be found or the setting value is not an integer.
4827         *
4828         * @return The setting's current value.
4829         */
4830        public static int getInt(ContentResolver cr, String name)
4831                throws SettingNotFoundException {
4832            return getIntForUser(cr, name, UserHandle.myUserId());
4833        }
4834
4835        /** @hide */
4836        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
4837                throws SettingNotFoundException {
4838            if (LOCATION_MODE.equals(name)) {
4839                // Map from to underlying location provider storage API to location mode
4840                return getLocationModeForUser(cr, userHandle);
4841            }
4842            String v = getStringForUser(cr, name, userHandle);
4843            try {
4844                return Integer.parseInt(v);
4845            } catch (NumberFormatException e) {
4846                throw new SettingNotFoundException(name);
4847            }
4848        }
4849
4850        /**
4851         * Convenience function for updating a single settings value as an
4852         * integer. This will either create a new entry in the table if the
4853         * given name does not exist, or modify the value of the existing row
4854         * with that name.  Note that internally setting values are always
4855         * stored as strings, so this function converts the given value to a
4856         * string before storing it.
4857         *
4858         * @param cr The ContentResolver to access.
4859         * @param name The name of the setting to modify.
4860         * @param value The new value for the setting.
4861         * @return true if the value was set, false on database errors
4862         */
4863        public static boolean putInt(ContentResolver cr, String name, int value) {
4864            return putIntForUser(cr, name, value, UserHandle.myUserId());
4865        }
4866
4867        /** @hide */
4868        public static boolean putIntForUser(ContentResolver cr, String name, int value,
4869                int userHandle) {
4870            return putStringForUser(cr, name, Integer.toString(value), userHandle);
4871        }
4872
4873        /**
4874         * Convenience function for retrieving a single secure settings value
4875         * as a {@code long}.  Note that internally setting values are always
4876         * stored as strings; this function converts the string to a {@code long}
4877         * for you.  The default value will be returned if the setting is
4878         * not defined or not a {@code long}.
4879         *
4880         * @param cr The ContentResolver to access.
4881         * @param name The name of the setting to retrieve.
4882         * @param def Value to return if the setting is not defined.
4883         *
4884         * @return The setting's current value, or 'def' if it is not defined
4885         * or not a valid {@code long}.
4886         */
4887        public static long getLong(ContentResolver cr, String name, long def) {
4888            return getLongForUser(cr, name, def, UserHandle.myUserId());
4889        }
4890
4891        /** @hide */
4892        public static long getLongForUser(ContentResolver cr, String name, long def,
4893                int userHandle) {
4894            String valString = getStringForUser(cr, name, userHandle);
4895            long value;
4896            try {
4897                value = valString != null ? Long.parseLong(valString) : def;
4898            } catch (NumberFormatException e) {
4899                value = def;
4900            }
4901            return value;
4902        }
4903
4904        /**
4905         * Convenience function for retrieving a single secure settings value
4906         * as a {@code long}.  Note that internally setting values are always
4907         * stored as strings; this function converts the string to a {@code long}
4908         * for you.
4909         * <p>
4910         * This version does not take a default value.  If the setting has not
4911         * been set, or the string value is not a number,
4912         * it throws {@link SettingNotFoundException}.
4913         *
4914         * @param cr The ContentResolver to access.
4915         * @param name The name of the setting to retrieve.
4916         *
4917         * @return The setting's current value.
4918         * @throws SettingNotFoundException Thrown if a setting by the given
4919         * name can't be found or the setting value is not an integer.
4920         */
4921        public static long getLong(ContentResolver cr, String name)
4922                throws SettingNotFoundException {
4923            return getLongForUser(cr, name, UserHandle.myUserId());
4924        }
4925
4926        /** @hide */
4927        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
4928                throws SettingNotFoundException {
4929            String valString = getStringForUser(cr, name, userHandle);
4930            try {
4931                return Long.parseLong(valString);
4932            } catch (NumberFormatException e) {
4933                throw new SettingNotFoundException(name);
4934            }
4935        }
4936
4937        /**
4938         * Convenience function for updating a secure settings value as a long
4939         * integer. This will either create a new entry in the table if the
4940         * given name does not exist, or modify the value of the existing row
4941         * with that name.  Note that internally setting values are always
4942         * stored as strings, so this function converts the given value to a
4943         * string before storing it.
4944         *
4945         * @param cr The ContentResolver to access.
4946         * @param name The name of the setting to modify.
4947         * @param value The new value for the setting.
4948         * @return true if the value was set, false on database errors
4949         */
4950        public static boolean putLong(ContentResolver cr, String name, long value) {
4951            return putLongForUser(cr, name, value, UserHandle.myUserId());
4952        }
4953
4954        /** @hide */
4955        public static boolean putLongForUser(ContentResolver cr, String name, long value,
4956                int userHandle) {
4957            return putStringForUser(cr, name, Long.toString(value), userHandle);
4958        }
4959
4960        /**
4961         * Convenience function for retrieving a single secure settings value
4962         * as a floating point number.  Note that internally setting values are
4963         * always stored as strings; this function converts the string to an
4964         * float for you. The default value will be returned if the setting
4965         * is not defined or not a valid float.
4966         *
4967         * @param cr The ContentResolver to access.
4968         * @param name The name of the setting to retrieve.
4969         * @param def Value to return if the setting is not defined.
4970         *
4971         * @return The setting's current value, or 'def' if it is not defined
4972         * or not a valid float.
4973         */
4974        public static float getFloat(ContentResolver cr, String name, float def) {
4975            return getFloatForUser(cr, name, def, UserHandle.myUserId());
4976        }
4977
4978        /** @hide */
4979        public static float getFloatForUser(ContentResolver cr, String name, float def,
4980                int userHandle) {
4981            String v = getStringForUser(cr, name, userHandle);
4982            try {
4983                return v != null ? Float.parseFloat(v) : def;
4984            } catch (NumberFormatException e) {
4985                return def;
4986            }
4987        }
4988
4989        /**
4990         * Convenience function for retrieving a single secure settings value
4991         * as a float.  Note that internally setting values are always
4992         * stored as strings; this function converts the string to a float
4993         * for you.
4994         * <p>
4995         * This version does not take a default value.  If the setting has not
4996         * been set, or the string value is not a number,
4997         * it throws {@link SettingNotFoundException}.
4998         *
4999         * @param cr The ContentResolver to access.
5000         * @param name The name of the setting to retrieve.
5001         *
5002         * @throws SettingNotFoundException Thrown if a setting by the given
5003         * name can't be found or the setting value is not a float.
5004         *
5005         * @return The setting's current value.
5006         */
5007        public static float getFloat(ContentResolver cr, String name)
5008                throws SettingNotFoundException {
5009            return getFloatForUser(cr, name, UserHandle.myUserId());
5010        }
5011
5012        /** @hide */
5013        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
5014                throws SettingNotFoundException {
5015            String v = getStringForUser(cr, name, userHandle);
5016            if (v == null) {
5017                throw new SettingNotFoundException(name);
5018            }
5019            try {
5020                return Float.parseFloat(v);
5021            } catch (NumberFormatException e) {
5022                throw new SettingNotFoundException(name);
5023            }
5024        }
5025
5026        /**
5027         * Convenience function for updating a single settings value as a
5028         * floating point number. This will either create a new entry in the
5029         * table if the given name does not exist, or modify the value of the
5030         * existing row with that name.  Note that internally setting values
5031         * are always stored as strings, so this function converts the given
5032         * value to a string before storing it.
5033         *
5034         * @param cr The ContentResolver to access.
5035         * @param name The name of the setting to modify.
5036         * @param value The new value for the setting.
5037         * @return true if the value was set, false on database errors
5038         */
5039        public static boolean putFloat(ContentResolver cr, String name, float value) {
5040            return putFloatForUser(cr, name, value, UserHandle.myUserId());
5041        }
5042
5043        /** @hide */
5044        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
5045                int userHandle) {
5046            return putStringForUser(cr, name, Float.toString(value), userHandle);
5047        }
5048
5049        /**
5050         * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
5051         * instead
5052         */
5053        @Deprecated
5054        public static final String DEVELOPMENT_SETTINGS_ENABLED =
5055                Global.DEVELOPMENT_SETTINGS_ENABLED;
5056
5057        /**
5058         * When the user has enable the option to have a "bug report" command
5059         * in the power menu.
5060         * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
5061         * @hide
5062         */
5063        @Deprecated
5064        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
5065
5066        /**
5067         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
5068         */
5069        @Deprecated
5070        public static final String ADB_ENABLED = Global.ADB_ENABLED;
5071
5072        /**
5073         * Setting to allow mock locations and location provider status to be injected into the
5074         * LocationManager service for testing purposes during application development.  These
5075         * locations and status values  override actual location and status information generated
5076         * by network, gps, or other location providers.
5077         *
5078         * @deprecated This settings is not used anymore.
5079         */
5080        @Deprecated
5081        public static final String ALLOW_MOCK_LOCATION = "mock_location";
5082
5083        /**
5084         * A 64-bit number (as a hex string) that is randomly
5085         * generated when the user first sets up the device and should remain
5086         * constant for the lifetime of the user's device. The value may
5087         * change if a factory reset is performed on the device.
5088         * <p class="note"><strong>Note:</strong> When a device has <a
5089         * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a>
5090         * (available on certain devices running Android 4.2 or higher), each user appears as a
5091         * completely separate device, so the {@code ANDROID_ID} value is unique to each
5092         * user.</p>
5093         */
5094        public static final String ANDROID_ID = "android_id";
5095
5096        /**
5097         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
5098         */
5099        @Deprecated
5100        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
5101
5102        /**
5103         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
5104         */
5105        @Deprecated
5106        public static final String DATA_ROAMING = Global.DATA_ROAMING;
5107
5108        /**
5109         * Setting to record the input method used by default, holding the ID
5110         * of the desired method.
5111         */
5112        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
5113
5114        /**
5115         * Setting to record the input method subtype used by default, holding the ID
5116         * of the desired method.
5117         */
5118        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
5119                "selected_input_method_subtype";
5120
5121        /**
5122         * Setting to record the history of input method subtype, holding the pair of ID of IME
5123         * and its last used subtype.
5124         * @hide
5125         */
5126        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
5127                "input_methods_subtype_history";
5128
5129        /**
5130         * Setting to record the visibility of input method selector
5131         */
5132        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
5133                "input_method_selector_visibility";
5134
5135        /**
5136         * The currently selected voice interaction service flattened ComponentName.
5137         * @hide
5138         */
5139        @TestApi
5140        public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";
5141
5142        /**
5143         * The currently selected autofill service flattened ComponentName.
5144         * @hide
5145         */
5146        @TestApi
5147        public static final String AUTOFILL_SERVICE = "autofill_service";
5148
5149        /**
5150         * bluetooth HCI snoop log configuration
5151         * @hide
5152         */
5153        public static final String BLUETOOTH_HCI_LOG =
5154                "bluetooth_hci_log";
5155
5156        /**
5157         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
5158         */
5159        @Deprecated
5160        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
5161
5162        /**
5163         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
5164         * @hide
5165         */
5166        public static final String USER_SETUP_COMPLETE = "user_setup_complete";
5167
5168        /**
5169         * Prefix for category name that marks whether a suggested action from that category was
5170         * completed.
5171         * @hide
5172         */
5173        public static final String COMPLETED_CATEGORY_PREFIX = "suggested.completed_category.";
5174
5175        /**
5176         * List of input methods that are currently enabled.  This is a string
5177         * containing the IDs of all enabled input methods, each ID separated
5178         * by ':'.
5179         */
5180        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
5181
5182        /**
5183         * List of system input methods that are currently disabled.  This is a string
5184         * containing the IDs of all disabled input methods, each ID separated
5185         * by ':'.
5186         * @hide
5187         */
5188        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
5189
5190        /**
5191         * Whether to show the IME when a hard keyboard is connected. This is a boolean that
5192         * determines if the IME should be shown when a hard keyboard is attached.
5193         * @hide
5194         */
5195        public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";
5196
5197        /**
5198         * Host name and port for global http proxy. Uses ':' seperator for
5199         * between host and port.
5200         *
5201         * @deprecated Use {@link Global#HTTP_PROXY}
5202         */
5203        @Deprecated
5204        public static final String HTTP_PROXY = Global.HTTP_PROXY;
5205
5206        /**
5207         * Package designated as always-on VPN provider.
5208         *
5209         * @hide
5210         */
5211        public static final String ALWAYS_ON_VPN_APP = "always_on_vpn_app";
5212
5213        /**
5214         * Whether to block networking outside of VPN connections while always-on is set.
5215         * @see #ALWAYS_ON_VPN_APP
5216         *
5217         * @hide
5218         */
5219        public static final String ALWAYS_ON_VPN_LOCKDOWN = "always_on_vpn_lockdown";
5220
5221        /**
5222         * Whether applications can be installed for this user via the system's
5223         * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
5224         *
5225         * <p>1 = permit app installation via the system package installer intent
5226         * <p>0 = do not allow use of the package installer
5227         * @deprecated Starting from {@link android.os.Build.VERSION_CODES#O}, apps should use
5228         * {@link PackageManager#canRequestPackageInstalls()}
5229         * @see PackageManager#canRequestPackageInstalls()
5230         */
5231        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
5232
5233        /**
5234         * A flag to tell {@link com.android.server.devicepolicy.DevicePolicyManagerService} that
5235         * the default for {@link #INSTALL_NON_MARKET_APPS} is reversed for this user on OTA. So it
5236         * can set the restriction {@link android.os.UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES}
5237         * on behalf of the profile owner if needed to make the change transparent for profile
5238         * owners.
5239         *
5240         * @hide
5241         */
5242        public static final String UNKNOWN_SOURCES_DEFAULT_REVERSED =
5243                "unknown_sources_default_reversed";
5244
5245        /**
5246         * Comma-separated list of location providers that activities may access. Do not rely on
5247         * this value being present in settings.db or on ContentObserver notifications on the
5248         * corresponding Uri.
5249         *
5250         * @deprecated use {@link #LOCATION_MODE} and
5251         * {@link LocationManager#MODE_CHANGED_ACTION} (or
5252         * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
5253         */
5254        @Deprecated
5255        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
5256
5257        /**
5258         * The degree of location access enabled by the user.
5259         * <p>
5260         * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
5261         * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
5262         * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
5263         * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
5264         * modes that might be added in the future.
5265         * <p>
5266         * Note: do not rely on this value being present in settings.db or on ContentObserver
5267         * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
5268         * to receive changes in this value.
5269         */
5270        public static final String LOCATION_MODE = "location_mode";
5271        /**
5272         * Stores the previous location mode when {@link #LOCATION_MODE} is set to
5273         * {@link #LOCATION_MODE_OFF}
5274         * @hide
5275         */
5276        public static final String LOCATION_PREVIOUS_MODE = "location_previous_mode";
5277
5278        /**
5279         * Sets all location providers to the previous states before location was turned off.
5280         * @hide
5281         */
5282        public static final int LOCATION_MODE_PREVIOUS = -1;
5283        /**
5284         * Location access disabled.
5285         */
5286        public static final int LOCATION_MODE_OFF = 0;
5287        /**
5288         * Network Location Provider disabled, but GPS and other sensors enabled.
5289         */
5290        public static final int LOCATION_MODE_SENSORS_ONLY = 1;
5291        /**
5292         * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
5293         * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
5294         * {@link android.location.Criteria#POWER_MEDIUM}.
5295         */
5296        public static final int LOCATION_MODE_BATTERY_SAVING = 2;
5297        /**
5298         * Best-effort location computation allowed.
5299         */
5300        public static final int LOCATION_MODE_HIGH_ACCURACY = 3;
5301
5302        /**
5303         * A flag containing settings used for biometric weak
5304         * @hide
5305         */
5306        @Deprecated
5307        public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
5308                "lock_biometric_weak_flags";
5309
5310        /**
5311         * Whether lock-to-app will lock the keyguard when exiting.
5312         * @hide
5313         */
5314        public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";
5315
5316        /**
5317         * Whether autolock is enabled (0 = false, 1 = true)
5318         *
5319         * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
5320         *             level of the keyguard. Accessing this setting from an app that is targeting
5321         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
5322         */
5323        @Deprecated
5324        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
5325
5326        /**
5327         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
5328         *
5329         * @deprecated Accessing this setting from an app that is targeting
5330         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
5331         */
5332        @Deprecated
5333        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
5334
5335        /**
5336         * Whether lock pattern will vibrate as user enters (0 = false, 1 =
5337         * true)
5338         *
5339         * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
5340         *             lockscreen uses
5341         *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
5342         *             Accessing this setting from an app that is targeting
5343         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
5344         */
5345        @Deprecated
5346        public static final String
5347                LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";
5348
5349        /**
5350         * This preference allows the device to be locked given time after screen goes off,
5351         * subject to current DeviceAdmin policy limits.
5352         * @hide
5353         */
5354        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
5355
5356
5357        /**
5358         * This preference contains the string that shows for owner info on LockScreen.
5359         * @hide
5360         * @deprecated
5361         */
5362        @Deprecated
5363        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
5364
5365        /**
5366         * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
5367         * @hide
5368         */
5369        @Deprecated
5370        public static final String LOCK_SCREEN_APPWIDGET_IDS =
5371            "lock_screen_appwidget_ids";
5372
5373        /**
5374         * Id of the appwidget shown on the lock screen when appwidgets are disabled.
5375         * @hide
5376         */
5377        @Deprecated
5378        public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
5379            "lock_screen_fallback_appwidget_id";
5380
5381        /**
5382         * Index of the lockscreen appwidget to restore, -1 if none.
5383         * @hide
5384         */
5385        @Deprecated
5386        public static final String LOCK_SCREEN_STICKY_APPWIDGET =
5387            "lock_screen_sticky_appwidget";
5388
5389        /**
5390         * This preference enables showing the owner info on LockScreen.
5391         * @hide
5392         * @deprecated
5393         */
5394        @Deprecated
5395        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
5396            "lock_screen_owner_info_enabled";
5397
5398        /**
5399         * When set by a user, allows notifications to be shown atop a securely locked screen
5400         * in their full "private" form (same as when the device is unlocked).
5401         * @hide
5402         */
5403        public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
5404                "lock_screen_allow_private_notifications";
5405
5406        /**
5407         * When set by a user, allows notification remote input atop a securely locked screen
5408         * without having to unlock
5409         * @hide
5410         */
5411        public static final String LOCK_SCREEN_ALLOW_REMOTE_INPUT =
5412                "lock_screen_allow_remote_input";
5413
5414        /**
5415         * Set by the system to track if the user needs to see the call to action for
5416         * the lockscreen notification policy.
5417         * @hide
5418         */
5419        public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
5420                "show_note_about_notification_hiding";
5421
5422        /**
5423         * Set to 1 by the system after trust agents have been initialized.
5424         * @hide
5425         */
5426        public static final String TRUST_AGENTS_INITIALIZED =
5427                "trust_agents_initialized";
5428
5429        /**
5430         * The Logging ID (a unique 64-bit value) as a hex string.
5431         * Used as a pseudonymous identifier for logging.
5432         * @deprecated This identifier is poorly initialized and has
5433         * many collisions.  It should not be used.
5434         */
5435        @Deprecated
5436        public static final String LOGGING_ID = "logging_id";
5437
5438        /**
5439         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
5440         */
5441        @Deprecated
5442        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
5443
5444        /**
5445         * No longer supported.
5446         */
5447        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
5448
5449        /**
5450         * No longer supported.
5451         */
5452        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
5453
5454        /**
5455         * No longer supported.
5456         */
5457        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
5458
5459        /**
5460         * Settings classname to launch when Settings is clicked from All
5461         * Applications.  Needed because of user testing between the old
5462         * and new Settings apps.
5463         */
5464        // TODO: 881807
5465        public static final String SETTINGS_CLASSNAME = "settings_classname";
5466
5467        /**
5468         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
5469         */
5470        @Deprecated
5471        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
5472
5473        /**
5474         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
5475         */
5476        @Deprecated
5477        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
5478
5479        /**
5480         * If accessibility is enabled.
5481         */
5482        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
5483
5484        /**
5485         * Setting specifying if the accessibility shortcut is enabled.
5486         * @hide
5487         */
5488        public static final String ACCESSIBILITY_SHORTCUT_ENABLED =
5489                "accessibility_shortcut_enabled";
5490
5491        /**
5492         * Setting specifying if the accessibility shortcut is enabled.
5493         * @hide
5494         */
5495        public static final String ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN =
5496                "accessibility_shortcut_on_lock_screen";
5497
5498        /**
5499         * Setting specifying if the accessibility shortcut dialog has been shown to this user.
5500         * @hide
5501         */
5502        public static final String ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN =
5503                "accessibility_shortcut_dialog_shown";
5504
5505        /**
5506         * Setting specifying the accessibility service to be toggled via the accessibility
5507         * shortcut. Must be its flattened {@link ComponentName}.
5508         * @hide
5509         */
5510        public static final String ACCESSIBILITY_SHORTCUT_TARGET_SERVICE =
5511                "accessibility_shortcut_target_service";
5512
5513        /**
5514         * If touch exploration is enabled.
5515         */
5516        public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";
5517
5518        /**
5519         * List of the enabled accessibility providers.
5520         */
5521        public static final String ENABLED_ACCESSIBILITY_SERVICES =
5522            "enabled_accessibility_services";
5523
5524        /**
5525         * List of the accessibility services to which the user has granted
5526         * permission to put the device into touch exploration mode.
5527         *
5528         * @hide
5529         */
5530        public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
5531            "touch_exploration_granted_accessibility_services";
5532
5533        /**
5534         * Whether to speak passwords while in accessibility mode.
5535         *
5536         * @deprecated The speaking of passwords is controlled by individual accessibility services.
5537         * Apps should ignore this setting and provide complete information to accessibility
5538         * at all times, which was the behavior when this value was {@code true}.
5539         */
5540        @Deprecated
5541        public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";
5542
5543        /**
5544         * Whether to draw text with high contrast while in accessibility mode.
5545         *
5546         * @hide
5547         */
5548        public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
5549                "high_text_contrast_enabled";
5550
5551        /**
5552         * If injection of accessibility enhancing JavaScript screen-reader
5553         * is enabled.
5554         * <p>
5555         *   Note: The JavaScript based screen-reader is served by the
5556         *   Google infrastructure and enable users with disabilities to
5557         *   efficiently navigate in and explore web content.
5558         * </p>
5559         * <p>
5560         *   This property represents a boolean value.
5561         * </p>
5562         * @hide
5563         */
5564        public static final String ACCESSIBILITY_SCRIPT_INJECTION =
5565            "accessibility_script_injection";
5566
5567        /**
5568         * The URL for the injected JavaScript based screen-reader used
5569         * for providing accessibility of content in WebView.
5570         * <p>
5571         *   Note: The JavaScript based screen-reader is served by the
5572         *   Google infrastructure and enable users with disabilities to
5573         *   efficiently navigate in and explore web content.
5574         * </p>
5575         * <p>
5576         *   This property represents a string value.
5577         * </p>
5578         * @hide
5579         */
5580        public static final String ACCESSIBILITY_SCREEN_READER_URL =
5581            "accessibility_script_injection_url";
5582
5583        /**
5584         * Key bindings for navigation in built-in accessibility support for web content.
5585         * <p>
5586         *   Note: These key bindings are for the built-in accessibility navigation for
5587         *   web content which is used as a fall back solution if JavaScript in a WebView
5588         *   is not enabled or the user has not opted-in script injection from Google.
5589         * </p>
5590         * <p>
5591         *   The bindings are separated by semi-colon. A binding is a mapping from
5592         *   a key to a sequence of actions (for more details look at
5593         *   android.webkit.AccessibilityInjector). A key is represented as the hexademical
5594         *   string representation of an integer obtained from a meta state (optional) shifted
5595         *   sixteen times left and bitwise ored with a key code. An action is represented
5596         *   as a hexademical string representation of an integer where the first two digits
5597         *   are navigation action index, the second, the third, and the fourth digit pairs
5598         *   represent the action arguments. The separate actions in a binding are colon
5599         *   separated. The key and the action sequence it maps to are separated by equals.
5600         * </p>
5601         * <p>
5602         *   For example, the binding below maps the DPAD right button to traverse the
5603         *   current navigation axis once without firing an accessibility event and to
5604         *   perform the same traversal again but to fire an event:
5605         *   <code>
5606         *     0x16=0x01000100:0x01000101;
5607         *   </code>
5608         * </p>
5609         * <p>
5610         *   The goal of this binding is to enable dynamic rebinding of keys to
5611         *   navigation actions for web content without requiring a framework change.
5612         * </p>
5613         * <p>
5614         *   This property represents a string value.
5615         * </p>
5616         * @hide
5617         */
5618        public static final String ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS =
5619            "accessibility_web_content_key_bindings";
5620
5621        /**
5622         * Setting that specifies whether the display magnification is enabled via a system-wide
5623         * triple tap gesture. Display magnifications allows the user to zoom in the display content
5624         * and is targeted to low vision users. The current magnification scale is controlled by
5625         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5626         *
5627         * @hide
5628         */
5629        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
5630                "accessibility_display_magnification_enabled";
5631
5632        /**
5633         * Setting that specifies whether the display magnification is enabled via a shortcut
5634         * affordance within the system's navigation area. Display magnifications allows the user to
5635         * zoom in the display content and is targeted to low vision users. The current
5636         * magnification scale is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5637         *
5638         * @hide
5639         */
5640        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED =
5641                "accessibility_display_magnification_navbar_enabled";
5642
5643        /**
5644         * Setting that specifies what the display magnification scale is.
5645         * Display magnifications allows the user to zoom in the display
5646         * content and is targeted to low vision users. Whether a display
5647         * magnification is performed is controlled by
5648         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED} and
5649         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED}
5650         *
5651         * @hide
5652         */
5653        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
5654                "accessibility_display_magnification_scale";
5655
5656        /**
5657         * Unused mangnification setting
5658         *
5659         * @hide
5660         * @deprecated
5661         */
5662        @Deprecated
5663        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
5664                "accessibility_display_magnification_auto_update";
5665
5666        /**
5667         * Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
5668         * modified from an AccessibilityService using the SoftKeyboardController.
5669         *
5670         * @hide
5671         */
5672        public static final String ACCESSIBILITY_SOFT_KEYBOARD_MODE =
5673                "accessibility_soft_keyboard_mode";
5674
5675        /**
5676         * Default soft keyboard behavior.
5677         *
5678         * @hide
5679         */
5680        public static final int SHOW_MODE_AUTO = 0;
5681
5682        /**
5683         * Soft keyboard is never shown.
5684         *
5685         * @hide
5686         */
5687        public static final int SHOW_MODE_HIDDEN = 1;
5688
5689        /**
5690         * Setting that specifies whether timed text (captions) should be
5691         * displayed in video content. Text display properties are controlled by
5692         * the following settings:
5693         * <ul>
5694         * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
5695         * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
5696         * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
5697         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
5698         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
5699         * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
5700         * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
5701         * </ul>
5702         *
5703         * @hide
5704         */
5705        public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
5706                "accessibility_captioning_enabled";
5707
5708        /**
5709         * Setting that specifies the language for captions as a locale string,
5710         * e.g. en_US.
5711         *
5712         * @see java.util.Locale#toString
5713         * @hide
5714         */
5715        public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
5716                "accessibility_captioning_locale";
5717
5718        /**
5719         * Integer property that specifies the preset style for captions, one
5720         * of:
5721         * <ul>
5722         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
5723         * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
5724         * </ul>
5725         *
5726         * @see java.util.Locale#toString
5727         * @hide
5728         */
5729        public static final String ACCESSIBILITY_CAPTIONING_PRESET =
5730                "accessibility_captioning_preset";
5731
5732        /**
5733         * Integer property that specifes the background color for captions as a
5734         * packed 32-bit color.
5735         *
5736         * @see android.graphics.Color#argb
5737         * @hide
5738         */
5739        public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
5740                "accessibility_captioning_background_color";
5741
5742        /**
5743         * Integer property that specifes the foreground color for captions as a
5744         * packed 32-bit color.
5745         *
5746         * @see android.graphics.Color#argb
5747         * @hide
5748         */
5749        public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
5750                "accessibility_captioning_foreground_color";
5751
5752        /**
5753         * Integer property that specifes the edge type for captions, one of:
5754         * <ul>
5755         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
5756         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
5757         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
5758         * </ul>
5759         *
5760         * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
5761         * @hide
5762         */
5763        public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
5764                "accessibility_captioning_edge_type";
5765
5766        /**
5767         * Integer property that specifes the edge color for captions as a
5768         * packed 32-bit color.
5769         *
5770         * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
5771         * @see android.graphics.Color#argb
5772         * @hide
5773         */
5774        public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
5775                "accessibility_captioning_edge_color";
5776
5777        /**
5778         * Integer property that specifes the window color for captions as a
5779         * packed 32-bit color.
5780         *
5781         * @see android.graphics.Color#argb
5782         * @hide
5783         */
5784        public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
5785                "accessibility_captioning_window_color";
5786
5787        /**
5788         * String property that specifies the typeface for captions, one of:
5789         * <ul>
5790         * <li>DEFAULT
5791         * <li>MONOSPACE
5792         * <li>SANS_SERIF
5793         * <li>SERIF
5794         * </ul>
5795         *
5796         * @see android.graphics.Typeface
5797         * @hide
5798         */
5799        public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
5800                "accessibility_captioning_typeface";
5801
5802        /**
5803         * Floating point property that specifies font scaling for captions.
5804         *
5805         * @hide
5806         */
5807        public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
5808                "accessibility_captioning_font_scale";
5809
5810        /**
5811         * Setting that specifies whether display color inversion is enabled.
5812         */
5813        public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
5814                "accessibility_display_inversion_enabled";
5815
5816        /**
5817         * Setting that specifies whether display color space adjustment is
5818         * enabled.
5819         *
5820         * @hide
5821         */
5822        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
5823                "accessibility_display_daltonizer_enabled";
5824
5825        /**
5826         * Integer property that specifies the type of color space adjustment to
5827         * perform. Valid values are defined in AccessibilityManager.
5828         *
5829         * @hide
5830         */
5831        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
5832                "accessibility_display_daltonizer";
5833
5834        /**
5835         * Setting that specifies whether automatic click when the mouse pointer stops moving is
5836         * enabled.
5837         *
5838         * @hide
5839         */
5840        public static final String ACCESSIBILITY_AUTOCLICK_ENABLED =
5841                "accessibility_autoclick_enabled";
5842
5843        /**
5844         * Integer setting specifying amount of time in ms the mouse pointer has to stay still
5845         * before performing click when {@link #ACCESSIBILITY_AUTOCLICK_ENABLED} is set.
5846         *
5847         * @see #ACCESSIBILITY_AUTOCLICK_ENABLED
5848         * @hide
5849         */
5850        public static final String ACCESSIBILITY_AUTOCLICK_DELAY =
5851                "accessibility_autoclick_delay";
5852
5853        /**
5854         * Whether or not larger size icons are used for the pointer of mouse/trackpad for
5855         * accessibility.
5856         * (0 = false, 1 = true)
5857         * @hide
5858         */
5859        public static final String ACCESSIBILITY_LARGE_POINTER_ICON =
5860                "accessibility_large_pointer_icon";
5861
5862        /**
5863         * The timeout for considering a press to be a long press in milliseconds.
5864         * @hide
5865         */
5866        public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";
5867
5868        /**
5869         * The duration in milliseconds between the first tap's up event and the second tap's
5870         * down event for an interaction to be considered part of the same multi-press.
5871         * @hide
5872         */
5873        public static final String MULTI_PRESS_TIMEOUT = "multi_press_timeout";
5874
5875        /**
5876         * List of the enabled print services.
5877         *
5878         * N and beyond uses {@link #DISABLED_PRINT_SERVICES}. But this might be used in an upgrade
5879         * from pre-N.
5880         *
5881         * @hide
5882         */
5883        public static final String ENABLED_PRINT_SERVICES =
5884            "enabled_print_services";
5885
5886        /**
5887         * List of the disabled print services.
5888         *
5889         * @hide
5890         */
5891        public static final String DISABLED_PRINT_SERVICES =
5892            "disabled_print_services";
5893
5894        /**
5895         * The saved value for WindowManagerService.setForcedDisplayDensity()
5896         * formatted as a single integer representing DPI. If unset, then use
5897         * the real display density.
5898         *
5899         * @hide
5900         */
5901        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";
5902
5903        /**
5904         * Setting to always use the default text-to-speech settings regardless
5905         * of the application settings.
5906         * 1 = override application settings,
5907         * 0 = use application settings (if specified).
5908         *
5909         * @deprecated  The value of this setting is no longer respected by
5910         * the framework text to speech APIs as of the Ice Cream Sandwich release.
5911         */
5912        @Deprecated
5913        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
5914
5915        /**
5916         * Default text-to-speech engine speech rate. 100 = 1x
5917         */
5918        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
5919
5920        /**
5921         * Default text-to-speech engine pitch. 100 = 1x
5922         */
5923        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
5924
5925        /**
5926         * Default text-to-speech engine.
5927         */
5928        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
5929
5930        /**
5931         * Default text-to-speech language.
5932         *
5933         * @deprecated this setting is no longer in use, as of the Ice Cream
5934         * Sandwich release. Apps should never need to read this setting directly,
5935         * instead can query the TextToSpeech framework classes for the default
5936         * locale. {@link TextToSpeech#getLanguage()}.
5937         */
5938        @Deprecated
5939        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
5940
5941        /**
5942         * Default text-to-speech country.
5943         *
5944         * @deprecated this setting is no longer in use, as of the Ice Cream
5945         * Sandwich release. Apps should never need to read this setting directly,
5946         * instead can query the TextToSpeech framework classes for the default
5947         * locale. {@link TextToSpeech#getLanguage()}.
5948         */
5949        @Deprecated
5950        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
5951
5952        /**
5953         * Default text-to-speech locale variant.
5954         *
5955         * @deprecated this setting is no longer in use, as of the Ice Cream
5956         * Sandwich release. Apps should never need to read this setting directly,
5957         * instead can query the TextToSpeech framework classes for the
5958         * locale that is in use {@link TextToSpeech#getLanguage()}.
5959         */
5960        @Deprecated
5961        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
5962
5963        /**
5964         * Stores the default tts locales on a per engine basis. Stored as
5965         * a comma seperated list of values, each value being of the form
5966         * {@code engine_name:locale} for example,
5967         * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
5968         * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
5969         * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
5970         * setting directly, and can query the TextToSpeech framework classes
5971         * for the locale that is in use.
5972         *
5973         * @hide
5974         */
5975        public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";
5976
5977        /**
5978         * Space delimited list of plugin packages that are enabled.
5979         */
5980        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
5981
5982        /**
5983         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
5984         * instead.
5985         */
5986        @Deprecated
5987        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
5988                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
5989
5990        /**
5991         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
5992         * instead.
5993         */
5994        @Deprecated
5995        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
5996                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
5997
5998        /**
5999         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
6000         * instead.
6001         */
6002        @Deprecated
6003        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
6004                Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
6005
6006        /**
6007         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
6008         * instead.
6009         */
6010        @Deprecated
6011        public static final String WIFI_ON = Global.WIFI_ON;
6012
6013        /**
6014         * The acceptable packet loss percentage (range 0 - 100) before trying
6015         * another AP on the same network.
6016         * @deprecated This setting is not used.
6017         */
6018        @Deprecated
6019        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
6020                "wifi_watchdog_acceptable_packet_loss_percentage";
6021
6022        /**
6023         * The number of access points required for a network in order for the
6024         * watchdog to monitor it.
6025         * @deprecated This setting is not used.
6026         */
6027        @Deprecated
6028        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
6029
6030        /**
6031         * The delay between background checks.
6032         * @deprecated This setting is not used.
6033         */
6034        @Deprecated
6035        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
6036                "wifi_watchdog_background_check_delay_ms";
6037
6038        /**
6039         * Whether the Wi-Fi watchdog is enabled for background checking even
6040         * after it thinks the user has connected to a good access point.
6041         * @deprecated This setting is not used.
6042         */
6043        @Deprecated
6044        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
6045                "wifi_watchdog_background_check_enabled";
6046
6047        /**
6048         * The timeout for a background ping
6049         * @deprecated This setting is not used.
6050         */
6051        @Deprecated
6052        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
6053                "wifi_watchdog_background_check_timeout_ms";
6054
6055        /**
6056         * The number of initial pings to perform that *may* be ignored if they
6057         * fail. Again, if these fail, they will *not* be used in packet loss
6058         * calculation. For example, one network always seemed to time out for
6059         * the first couple pings, so this is set to 3 by default.
6060         * @deprecated This setting is not used.
6061         */
6062        @Deprecated
6063        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
6064            "wifi_watchdog_initial_ignored_ping_count";
6065
6066        /**
6067         * The maximum number of access points (per network) to attempt to test.
6068         * If this number is reached, the watchdog will no longer monitor the
6069         * initial connection state for the network. This is a safeguard for
6070         * networks containing multiple APs whose DNS does not respond to pings.
6071         * @deprecated This setting is not used.
6072         */
6073        @Deprecated
6074        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
6075
6076        /**
6077         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
6078         */
6079        @Deprecated
6080        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
6081
6082        /**
6083         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
6084         * @deprecated This setting is not used.
6085         */
6086        @Deprecated
6087        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
6088
6089        /**
6090         * The number of pings to test if an access point is a good connection.
6091         * @deprecated This setting is not used.
6092         */
6093        @Deprecated
6094        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
6095
6096        /**
6097         * The delay between pings.
6098         * @deprecated This setting is not used.
6099         */
6100        @Deprecated
6101        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
6102
6103        /**
6104         * The timeout per ping.
6105         * @deprecated This setting is not used.
6106         */
6107        @Deprecated
6108        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
6109
6110        /**
6111         * @deprecated Use
6112         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
6113         */
6114        @Deprecated
6115        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
6116
6117        /**
6118         * @deprecated Use
6119         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
6120         */
6121        @Deprecated
6122        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
6123                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
6124
6125        /**
6126         * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
6127         * the receivers of the PendingIntent an opportunity to make a new network request before
6128         * the Network satisfying the request is potentially removed.
6129         *
6130         * @hide
6131         */
6132        public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
6133                "connectivity_release_pending_intent_delay_ms";
6134
6135        /**
6136         * Whether background data usage is allowed.
6137         *
6138         * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
6139         *             availability of background data depends on several
6140         *             combined factors. When background data is unavailable,
6141         *             {@link ConnectivityManager#getActiveNetworkInfo()} will
6142         *             now appear disconnected.
6143         */
6144        @Deprecated
6145        public static final String BACKGROUND_DATA = "background_data";
6146
6147        /**
6148         * Origins for which browsers should allow geolocation by default.
6149         * The value is a space-separated list of origins.
6150         */
6151        public static final String ALLOWED_GEOLOCATION_ORIGINS
6152                = "allowed_geolocation_origins";
6153
6154        /**
6155         * The preferred TTY mode     0 = TTy Off, CDMA default
6156         *                            1 = TTY Full
6157         *                            2 = TTY HCO
6158         *                            3 = TTY VCO
6159         * @hide
6160         */
6161        public static final String PREFERRED_TTY_MODE =
6162                "preferred_tty_mode";
6163
6164        /**
6165         * Whether the enhanced voice privacy mode is enabled.
6166         * 0 = normal voice privacy
6167         * 1 = enhanced voice privacy
6168         * @hide
6169         */
6170        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
6171
6172        /**
6173         * Whether the TTY mode mode is enabled.
6174         * 0 = disabled
6175         * 1 = enabled
6176         * @hide
6177         */
6178        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
6179
6180        /**
6181         * Controls whether settings backup is enabled.
6182         * Type: int ( 0 = disabled, 1 = enabled )
6183         * @hide
6184         */
6185        public static final String BACKUP_ENABLED = "backup_enabled";
6186
6187        /**
6188         * Controls whether application data is automatically restored from backup
6189         * at install time.
6190         * Type: int ( 0 = disabled, 1 = enabled )
6191         * @hide
6192         */
6193        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
6194
6195        /**
6196         * Indicates whether settings backup has been fully provisioned.
6197         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
6198         * @hide
6199         */
6200        public static final String BACKUP_PROVISIONED = "backup_provisioned";
6201
6202        /**
6203         * Component of the transport to use for backup/restore.
6204         * @hide
6205         */
6206        public static final String BACKUP_TRANSPORT = "backup_transport";
6207
6208        /**
6209         * Version for which the setup wizard was last shown.  Bumped for
6210         * each release when there is new setup information to show.
6211         * @hide
6212         */
6213        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
6214
6215        /**
6216         * The interval in milliseconds after which Wi-Fi is considered idle.
6217         * When idle, it is possible for the device to be switched from Wi-Fi to
6218         * the mobile data network.
6219         * @hide
6220         * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
6221         * instead.
6222         */
6223        @Deprecated
6224        public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;
6225
6226        /**
6227         * The global search provider chosen by the user (if multiple global
6228         * search providers are installed). This will be the provider returned
6229         * by {@link SearchManager#getGlobalSearchActivity()} if it's still
6230         * installed. This setting is stored as a flattened component name as
6231         * per {@link ComponentName#flattenToString()}.
6232         *
6233         * @hide
6234         */
6235        public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
6236                "search_global_search_activity";
6237
6238        /**
6239         * The number of promoted sources in GlobalSearch.
6240         * @hide
6241         */
6242        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
6243        /**
6244         * The maximum number of suggestions returned by GlobalSearch.
6245         * @hide
6246         */
6247        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
6248        /**
6249         * The number of suggestions GlobalSearch will ask each non-web search source for.
6250         * @hide
6251         */
6252        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
6253        /**
6254         * The number of suggestions the GlobalSearch will ask the web search source for.
6255         * @hide
6256         */
6257        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
6258                "search_web_results_override_limit";
6259        /**
6260         * The number of milliseconds that GlobalSearch will wait for suggestions from
6261         * promoted sources before continuing with all other sources.
6262         * @hide
6263         */
6264        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
6265                "search_promoted_source_deadline_millis";
6266        /**
6267         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
6268         * @hide
6269         */
6270        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
6271        /**
6272         * The maximum number of milliseconds that GlobalSearch shows the previous results
6273         * after receiving a new query.
6274         * @hide
6275         */
6276        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
6277        /**
6278         * The maximum age of log data used for shortcuts in GlobalSearch.
6279         * @hide
6280         */
6281        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
6282        /**
6283         * The maximum age of log data used for source ranking in GlobalSearch.
6284         * @hide
6285         */
6286        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
6287                "search_max_source_event_age_millis";
6288        /**
6289         * The minimum number of impressions needed to rank a source in GlobalSearch.
6290         * @hide
6291         */
6292        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
6293                "search_min_impressions_for_source_ranking";
6294        /**
6295         * The minimum number of clicks needed to rank a source in GlobalSearch.
6296         * @hide
6297         */
6298        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
6299                "search_min_clicks_for_source_ranking";
6300        /**
6301         * The maximum number of shortcuts shown by GlobalSearch.
6302         * @hide
6303         */
6304        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
6305        /**
6306         * The size of the core thread pool for suggestion queries in GlobalSearch.
6307         * @hide
6308         */
6309        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
6310                "search_query_thread_core_pool_size";
6311        /**
6312         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
6313         * @hide
6314         */
6315        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
6316                "search_query_thread_max_pool_size";
6317        /**
6318         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
6319         * @hide
6320         */
6321        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
6322                "search_shortcut_refresh_core_pool_size";
6323        /**
6324         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
6325         * @hide
6326         */
6327        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
6328                "search_shortcut_refresh_max_pool_size";
6329        /**
6330         * The maximun time that excess threads in the GlobalSeach thread pools will
6331         * wait before terminating.
6332         * @hide
6333         */
6334        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
6335                "search_thread_keepalive_seconds";
6336        /**
6337         * The maximum number of concurrent suggestion queries to each source.
6338         * @hide
6339         */
6340        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
6341                "search_per_source_concurrent_query_limit";
6342
6343        /**
6344         * Whether or not alert sounds are played on StorageManagerService events.
6345         * (0 = false, 1 = true)
6346         * @hide
6347         */
6348        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
6349
6350        /**
6351         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
6352         * @hide
6353         */
6354        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
6355
6356        /**
6357         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
6358         * @hide
6359         */
6360        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
6361
6362        /**
6363         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
6364         * @hide
6365         */
6366        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
6367
6368        /**
6369         * If nonzero, ANRs in invisible background processes bring up a dialog.
6370         * Otherwise, the process will be silently killed.
6371         *
6372         * Also prevents ANRs and crash dialogs from being suppressed.
6373         * @hide
6374         */
6375        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
6376
6377        /**
6378         * The {@link ComponentName} string of the service to be used as the voice recognition
6379         * service.
6380         *
6381         * @hide
6382         */
6383        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
6384
6385        /**
6386         * Stores whether an user has consented to have apps verified through PAM.
6387         * The value is boolean (1 or 0).
6388         *
6389         * @hide
6390         */
6391        public static final String PACKAGE_VERIFIER_USER_CONSENT =
6392            "package_verifier_user_consent";
6393
6394        /**
6395         * The {@link ComponentName} string of the selected spell checker service which is
6396         * one of the services managed by the text service manager.
6397         *
6398         * @hide
6399         */
6400        public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";
6401
6402        /**
6403         * The {@link ComponentName} string of the selected subtype of the selected spell checker
6404         * service which is one of the services managed by the text service manager.
6405         *
6406         * @hide
6407         */
6408        public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
6409                "selected_spell_checker_subtype";
6410
6411        /**
6412         * The {@link ComponentName} string whether spell checker is enabled or not.
6413         *
6414         * @hide
6415         */
6416        public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";
6417
6418        /**
6419         * What happens when the user presses the Power button while in-call
6420         * and the screen is on.<br/>
6421         * <b>Values:</b><br/>
6422         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
6423         * 2 - The Power button hangs up the current call.<br/>
6424         *
6425         * @hide
6426         */
6427        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
6428
6429        /**
6430         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
6431         * @hide
6432         */
6433        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
6434
6435        /**
6436         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
6437         * @hide
6438         */
6439        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
6440
6441        /**
6442         * INCALL_POWER_BUTTON_BEHAVIOR default value.
6443         * @hide
6444         */
6445        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
6446                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
6447
6448        /**
6449         * What happens when the user presses the Back button while in-call
6450         * and the screen is on.<br/>
6451         * <b>Values:</b><br/>
6452         * 0 - The Back buttons does nothing different.<br/>
6453         * 1 - The Back button hangs up the current call.<br/>
6454         *
6455         * @hide
6456         */
6457        public static final String INCALL_BACK_BUTTON_BEHAVIOR = "incall_back_button_behavior";
6458
6459        /**
6460         * INCALL_BACK_BUTTON_BEHAVIOR value for no action.
6461         * @hide
6462         */
6463        public static final int INCALL_BACK_BUTTON_BEHAVIOR_NONE = 0x0;
6464
6465        /**
6466         * INCALL_BACK_BUTTON_BEHAVIOR value for "hang up".
6467         * @hide
6468         */
6469        public static final int INCALL_BACK_BUTTON_BEHAVIOR_HANGUP = 0x1;
6470
6471        /**
6472         * INCALL_POWER_BUTTON_BEHAVIOR default value.
6473         * @hide
6474         */
6475        public static final int INCALL_BACK_BUTTON_BEHAVIOR_DEFAULT =
6476                INCALL_BACK_BUTTON_BEHAVIOR_NONE;
6477
6478        /**
6479         * Whether the device should wake when the wake gesture sensor detects motion.
6480         * @hide
6481         */
6482        public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";
6483
6484        /**
6485         * Whether the device should doze if configured.
6486         * @hide
6487         */
6488        public static final String DOZE_ENABLED = "doze_enabled";
6489
6490        /**
6491         * Whether doze should be always on.
6492         * @hide
6493         */
6494        public static final String DOZE_ALWAYS_ON = "doze_always_on";
6495
6496        /**
6497         * Whether the device should pulse on pick up gesture.
6498         * @hide
6499         */
6500        public static final String DOZE_PULSE_ON_PICK_UP = "doze_pulse_on_pick_up";
6501
6502        /**
6503         * Whether the device should pulse on double tap gesture.
6504         * @hide
6505         */
6506        public static final String DOZE_PULSE_ON_DOUBLE_TAP = "doze_pulse_on_double_tap";
6507
6508        /**
6509         * The current night mode that has been selected by the user.  Owned
6510         * and controlled by UiModeManagerService.  Constants are as per
6511         * UiModeManager.
6512         * @hide
6513         */
6514        public static final String UI_NIGHT_MODE = "ui_night_mode";
6515
6516        /**
6517         * Whether screensavers are enabled.
6518         * @hide
6519         */
6520        public static final String SCREENSAVER_ENABLED = "screensaver_enabled";
6521
6522        /**
6523         * The user's chosen screensaver components.
6524         *
6525         * These will be launched by the PhoneWindowManager after a timeout when not on
6526         * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
6527         * @hide
6528         */
6529        public static final String SCREENSAVER_COMPONENTS = "screensaver_components";
6530
6531        /**
6532         * If screensavers are enabled, whether the screensaver should be automatically launched
6533         * when the device is inserted into a (desk) dock.
6534         * @hide
6535         */
6536        public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";
6537
6538        /**
6539         * If screensavers are enabled, whether the screensaver should be automatically launched
6540         * when the screen times out when not on battery.
6541         * @hide
6542         */
6543        public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";
6544
6545        /**
6546         * If screensavers are enabled, the default screensaver component.
6547         * @hide
6548         */
6549        public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";
6550
6551        /**
6552         * The default NFC payment component
6553         * @hide
6554         */
6555        public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";
6556
6557        /**
6558         * Whether NFC payment is handled by the foreground application or a default.
6559         * @hide
6560         */
6561        public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";
6562
6563        /**
6564         * Specifies the package name currently configured to be the primary sms application
6565         * @hide
6566         */
6567        public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";
6568
6569        /**
6570         * Specifies the package name currently configured to be the default dialer application
6571         * @hide
6572         */
6573        public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";
6574
6575        /**
6576         * Specifies the package name currently configured to be the emergency assistance application
6577         *
6578         * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
6579         *
6580         * @hide
6581         */
6582        public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";
6583
6584        /**
6585         * Specifies whether the current app context on scren (assist data) will be sent to the
6586         * assist application (active voice interaction service).
6587         *
6588         * @hide
6589         */
6590        public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";
6591
6592        /**
6593         * Specifies whether a screenshot of the screen contents will be sent to the assist
6594         * application (active voice interaction service).
6595         *
6596         * @hide
6597         */
6598        public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";
6599
6600        /**
6601         * Specifies whether the screen will show an animation if screen contents are sent to the
6602         * assist application (active voice interaction service).
6603         *
6604         * Note that the disclosure will be forced for third-party assistants or if the device
6605         * does not support disabling it.
6606         *
6607         * @hide
6608         */
6609        public static final String ASSIST_DISCLOSURE_ENABLED = "assist_disclosure_enabled";
6610
6611        /**
6612         * Name of the service components that the current user has explicitly allowed to
6613         * see and assist with all of the user's notifications.
6614         *
6615         * @hide
6616         */
6617        public static final String ENABLED_NOTIFICATION_ASSISTANT =
6618                "enabled_notification_assistant";
6619
6620        /**
6621         * Names of the service components that the current user has explicitly allowed to
6622         * see all of the user's notifications, separated by ':'.
6623         *
6624         * @hide
6625         */
6626        public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
6627
6628        /**
6629         * Names of the packages that the current user has explicitly allowed to
6630         * manage notification policy configuration, separated by ':'.
6631         *
6632         * @hide
6633         */
6634        @TestApi
6635        public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
6636                "enabled_notification_policy_access_packages";
6637
6638        /**
6639         * Defines whether managed profile ringtones should be synced from it's parent profile
6640         * <p>
6641         * 0 = ringtones are not synced
6642         * 1 = ringtones are synced from the profile's parent (default)
6643         * <p>
6644         * This value is only used for managed profiles.
6645         * @hide
6646         */
6647        @TestApi
6648        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
6649        public static final String SYNC_PARENT_SOUNDS = "sync_parent_sounds";
6650
6651        /** @hide */
6652        public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";
6653
6654        /**
6655         * This is the query URI for finding a print service to install.
6656         *
6657         * @hide
6658         */
6659        public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";
6660
6661        /**
6662         * This is the query URI for finding a NFC payment service to install.
6663         *
6664         * @hide
6665         */
6666        public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";
6667
6668        /**
6669         * If enabled, apps should try to skip any introductory hints on first launch. This might
6670         * apply to users that are already familiar with the environment or temporary users.
6671         * <p>
6672         * Type : int (0 to show hints, 1 to skip showing hints)
6673         */
6674        public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";
6675
6676        /**
6677         * Persisted playback time after a user confirmation of an unsafe volume level.
6678         *
6679         * @hide
6680         */
6681        public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";
6682
6683        /**
6684         * This preference enables notification display on the lockscreen.
6685         * @hide
6686         */
6687        public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
6688                "lock_screen_show_notifications";
6689
6690        /**
6691         * This preference stores the last stack active task time for each user, which affects what
6692         * tasks will be visible in Overview.
6693         * @hide
6694         */
6695        public static final String OVERVIEW_LAST_STACK_ACTIVE_TIME =
6696                "overview_last_stack_active_time";
6697
6698        /**
6699         * List of TV inputs that are currently hidden. This is a string
6700         * containing the IDs of all hidden TV inputs. Each ID is encoded by
6701         * {@link android.net.Uri#encode(String)} and separated by ':'.
6702         * @hide
6703         */
6704        public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";
6705
6706        /**
6707         * List of custom TV input labels. This is a string containing <TV input id, custom name>
6708         * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
6709         * and separated by ','. Each pair is separated by ':'.
6710         * @hide
6711         */
6712        public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";
6713
6714        /**
6715         * Whether automatic routing of system audio to USB audio peripheral is disabled.
6716         * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
6717         * and 0 means automatic routing is enabled.
6718         *
6719         * @hide
6720         */
6721        public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
6722                "usb_audio_automatic_routing_disabled";
6723
6724        /**
6725         * The timeout in milliseconds before the device fully goes to sleep after
6726         * a period of inactivity.  This value sets an upper bound on how long the device
6727         * will stay awake or dreaming without user activity.  It should generally
6728         * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
6729         * will sleep before it ever has a chance to dream.
6730         * <p>
6731         * Use -1 to disable this timeout.
6732         * </p>
6733         *
6734         * @hide
6735         */
6736        public static final String SLEEP_TIMEOUT = "sleep_timeout";
6737
6738        /**
6739         * Controls whether double tap to wake is enabled.
6740         * @hide
6741         */
6742        public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";
6743
6744        /**
6745         * The current assistant component. It could be a voice interaction service,
6746         * or an activity that handles ACTION_ASSIST, or empty which means using the default
6747         * handling.
6748         *
6749         * @hide
6750         */
6751        public static final String ASSISTANT = "assistant";
6752
6753        /**
6754         * Whether the camera launch gesture should be disabled.
6755         *
6756         * @hide
6757         */
6758        public static final String CAMERA_GESTURE_DISABLED = "camera_gesture_disabled";
6759
6760        /**
6761         * Whether the camera launch gesture to double tap the power button when the screen is off
6762         * should be disabled.
6763         *
6764         * @hide
6765         */
6766        public static final String CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED =
6767                "camera_double_tap_power_gesture_disabled";
6768
6769        /**
6770         * Whether the camera double twist gesture to flip between front and back mode should be
6771         * enabled.
6772         *
6773         * @hide
6774         */
6775        public static final String CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED =
6776                "camera_double_twist_to_flip_enabled";
6777
6778        /**
6779         * Whether the assist gesture should be enabled.
6780         *
6781         * @hide
6782         */
6783        public static final String ASSIST_GESTURE_ENABLED = "assist_gesture_enabled";
6784
6785        /**
6786         * Sensitivity control for the assist gesture.
6787         *
6788         * @hide
6789         */
6790        public static final String ASSIST_GESTURE_SENSITIVITY = "assist_gesture_sensitivity";
6791
6792        /**
6793         * Control whether Night display is currently activated.
6794         * @hide
6795         */
6796        public static final String NIGHT_DISPLAY_ACTIVATED = "night_display_activated";
6797
6798        /**
6799         * Control whether Night display will automatically activate/deactivate.
6800         * @hide
6801         */
6802        public static final String NIGHT_DISPLAY_AUTO_MODE = "night_display_auto_mode";
6803
6804        /**
6805         * Control the color temperature of Night Display, represented in Kelvin.
6806         * @hide
6807         */
6808        public static final String NIGHT_DISPLAY_COLOR_TEMPERATURE =
6809                "night_display_color_temperature";
6810
6811        /**
6812         * Custom time when Night display is scheduled to activate.
6813         * Represented as milliseconds from midnight (e.g. 79200000 == 10pm).
6814         * @hide
6815         */
6816        public static final String NIGHT_DISPLAY_CUSTOM_START_TIME = "night_display_custom_start_time";
6817
6818        /**
6819         * Custom time when Night display is scheduled to deactivate.
6820         * Represented as milliseconds from midnight (e.g. 21600000 == 6am).
6821         * @hide
6822         */
6823        public static final String NIGHT_DISPLAY_CUSTOM_END_TIME = "night_display_custom_end_time";
6824
6825        /**
6826         * Names of the service components that the current user has explicitly allowed to
6827         * be a VR mode listener, separated by ':'.
6828         *
6829         * @hide
6830         */
6831        public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners";
6832
6833        /**
6834         * Behavior of the display while in VR mode.
6835         *
6836         * One of {@link #VR_DISPLAY_MODE_LOW_PERSISTENCE} or {@link #VR_DISPLAY_MODE_OFF}.
6837         *
6838         * @hide
6839         */
6840        public static final String VR_DISPLAY_MODE = "vr_display_mode";
6841
6842        /**
6843         * Lower the display persistence while the system is in VR mode.
6844         *
6845         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6846         *
6847         * @hide.
6848         */
6849        public static final int VR_DISPLAY_MODE_LOW_PERSISTENCE = 0;
6850
6851        /**
6852         * Do not alter the display persistence while the system is in VR mode.
6853         *
6854         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6855         *
6856         * @hide.
6857         */
6858        public static final int VR_DISPLAY_MODE_OFF = 1;
6859
6860        /**
6861         * Whether CarrierAppUtils#disableCarrierAppsUntilPrivileged has been executed at least
6862         * once.
6863         *
6864         * <p>This is used to ensure that we only take one pass which will disable apps that are not
6865         * privileged (if any). From then on, we only want to enable apps (when a matching SIM is
6866         * inserted), to avoid disabling an app that the user might actively be using.
6867         *
6868         * <p>Will be set to 1 once executed.
6869         *
6870         * @hide
6871         */
6872        public static final String CARRIER_APPS_HANDLED = "carrier_apps_handled";
6873
6874        /**
6875         * Whether parent user can access remote contact in managed profile.
6876         *
6877         * @hide
6878         */
6879        public static final String MANAGED_PROFILE_CONTACT_REMOTE_SEARCH =
6880                "managed_profile_contact_remote_search";
6881
6882        /**
6883         * Whether or not the automatic storage manager is enabled and should run on the device.
6884         *
6885         * @hide
6886         */
6887        public static final String AUTOMATIC_STORAGE_MANAGER_ENABLED =
6888                "automatic_storage_manager_enabled";
6889
6890        /**
6891         * How many days of information for the automatic storage manager to retain on the device.
6892         *
6893         * @hide
6894         */
6895        public static final String AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN =
6896                "automatic_storage_manager_days_to_retain";
6897
6898        /**
6899         * Default number of days of information for the automatic storage manager to retain.
6900         *
6901         * @hide
6902         */
6903        public static final int AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_DEFAULT = 90;
6904
6905        /**
6906         * How many bytes the automatic storage manager has cleared out.
6907         *
6908         * @hide
6909         */
6910        public static final String AUTOMATIC_STORAGE_MANAGER_BYTES_CLEARED =
6911                "automatic_storage_manager_bytes_cleared";
6912
6913
6914        /**
6915         * Last run time for the automatic storage manager.
6916         *
6917         * @hide
6918         */
6919        public static final String AUTOMATIC_STORAGE_MANAGER_LAST_RUN =
6920                "automatic_storage_manager_last_run";
6921
6922        /**
6923         * Whether SystemUI navigation keys is enabled.
6924         * @hide
6925         */
6926        public static final String SYSTEM_NAVIGATION_KEYS_ENABLED =
6927                "system_navigation_keys_enabled";
6928
6929        /**
6930         * Holds comma separated list of ordering of QS tiles.
6931         * @hide
6932         */
6933        public static final String QS_TILES = "sysui_qs_tiles";
6934
6935        /**
6936         * Whether preloaded APKs have been installed for the user.
6937         * @hide
6938         */
6939        public static final String DEMO_USER_SETUP_COMPLETE
6940                = "demo_user_setup_complete";
6941
6942        /**
6943         * Specifies whether the web action API is enabled.
6944         *
6945         * @hide
6946         */
6947        public static final String WEB_ACTION_ENABLED = "web_action_enabled";
6948
6949        /**
6950         * Has this pairable device been paired or upgraded from a previously paired system.
6951         * @hide
6952         */
6953        public static final String DEVICE_PAIRED = "device_paired";
6954
6955        /**
6956         * Integer state indicating whether package verifier is enabled.
6957         * TODO(b/34259924): Remove this setting.
6958         *
6959         * @hide
6960         */
6961        public static final String PACKAGE_VERIFIER_STATE = "package_verifier_state";
6962
6963        /**
6964         * Specifies additional package name for broadcasting the CMAS messages.
6965         * @hide
6966         */
6967        public static final String CMAS_ADDITIONAL_BROADCAST_PKG = "cmas_additional_broadcast_pkg";
6968
6969        /**
6970         * This are the settings to be backed up.
6971         *
6972         * NOTE: Settings are backed up and restored in the order they appear
6973         *       in this array. If you have one setting depending on another,
6974         *       make sure that they are ordered appropriately.
6975         *
6976         * @hide
6977         */
6978        public static final String[] SETTINGS_TO_BACKUP = {
6979            BUGREPORT_IN_POWER_MENU,                            // moved to global
6980            ALLOW_MOCK_LOCATION,
6981            PARENTAL_CONTROL_ENABLED,
6982            PARENTAL_CONTROL_REDIRECT_URL,
6983            USB_MASS_STORAGE_ENABLED,                           // moved to global
6984            ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
6985            ACCESSIBILITY_DISPLAY_DALTONIZER,
6986            ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
6987            ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
6988            ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
6989            ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
6990            ACCESSIBILITY_SCRIPT_INJECTION,
6991            ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS,
6992            ENABLED_ACCESSIBILITY_SERVICES,
6993            ENABLED_NOTIFICATION_LISTENERS,
6994            ENABLED_VR_LISTENERS,
6995            ENABLED_INPUT_METHODS,
6996            TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
6997            TOUCH_EXPLORATION_ENABLED,
6998            ACCESSIBILITY_ENABLED,
6999            ACCESSIBILITY_SHORTCUT_TARGET_SERVICE,
7000            ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN,
7001            ACCESSIBILITY_SHORTCUT_ENABLED,
7002            ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN,
7003            ACCESSIBILITY_SPEAK_PASSWORD,
7004            ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
7005            ACCESSIBILITY_CAPTIONING_PRESET,
7006            ACCESSIBILITY_CAPTIONING_ENABLED,
7007            ACCESSIBILITY_CAPTIONING_LOCALE,
7008            ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
7009            ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
7010            ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
7011            ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
7012            ACCESSIBILITY_CAPTIONING_TYPEFACE,
7013            ACCESSIBILITY_CAPTIONING_FONT_SCALE,
7014            ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
7015            TTS_USE_DEFAULTS,
7016            TTS_DEFAULT_RATE,
7017            TTS_DEFAULT_PITCH,
7018            TTS_DEFAULT_SYNTH,
7019            TTS_DEFAULT_LANG,
7020            TTS_DEFAULT_COUNTRY,
7021            TTS_ENABLED_PLUGINS,
7022            TTS_DEFAULT_LOCALE,
7023            SHOW_IME_WITH_HARD_KEYBOARD,
7024            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
7025            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
7026            WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
7027            SELECTED_SPELL_CHECKER,
7028            SELECTED_SPELL_CHECKER_SUBTYPE,
7029            SPELL_CHECKER_ENABLED,
7030            MOUNT_PLAY_NOTIFICATION_SND,
7031            MOUNT_UMS_AUTOSTART,
7032            MOUNT_UMS_PROMPT,
7033            MOUNT_UMS_NOTIFY_ENABLED,
7034            SLEEP_TIMEOUT,
7035            DOUBLE_TAP_TO_WAKE,
7036            WAKE_GESTURE_ENABLED,
7037            LONG_PRESS_TIMEOUT,
7038            CAMERA_GESTURE_DISABLED,
7039            ACCESSIBILITY_AUTOCLICK_ENABLED,
7040            ACCESSIBILITY_AUTOCLICK_DELAY,
7041            ACCESSIBILITY_LARGE_POINTER_ICON,
7042            PREFERRED_TTY_MODE,
7043            ENHANCED_VOICE_PRIVACY_ENABLED,
7044            TTY_MODE_ENABLED,
7045            INCALL_POWER_BUTTON_BEHAVIOR,
7046            NIGHT_DISPLAY_CUSTOM_START_TIME,
7047            NIGHT_DISPLAY_CUSTOM_END_TIME,
7048            NIGHT_DISPLAY_COLOR_TEMPERATURE,
7049            NIGHT_DISPLAY_AUTO_MODE,
7050            NIGHT_DISPLAY_ACTIVATED,
7051            SYNC_PARENT_SOUNDS,
7052            CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED,
7053            CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED,
7054            SYSTEM_NAVIGATION_KEYS_ENABLED,
7055            QS_TILES,
7056            DOZE_ENABLED,
7057            DOZE_PULSE_ON_PICK_UP,
7058            DOZE_PULSE_ON_DOUBLE_TAP,
7059            NFC_PAYMENT_DEFAULT_COMPONENT,
7060            AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN,
7061            ASSIST_GESTURE_ENABLED,
7062            ASSIST_GESTURE_SENSITIVITY,
7063            VR_DISPLAY_MODE
7064        };
7065
7066        /**
7067         * These entries are considered common between the personal and the managed profile,
7068         * since the managed profile doesn't get to change them.
7069         */
7070        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
7071
7072        static {
7073            CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
7074            CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
7075            CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
7076            CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
7077            CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
7078            CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
7079            CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
7080            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PREVIOUS_MODE);
7081            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
7082            CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
7083            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
7084            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
7085        }
7086
7087        /** @hide */
7088        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
7089            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
7090        }
7091
7092        /**
7093         * Secure settings which can be accessed by instant apps.
7094         * @hide
7095         */
7096        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
7097        static {
7098            INSTANT_APP_SETTINGS.add(ENABLED_ACCESSIBILITY_SERVICES);
7099            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_SPEAK_PASSWORD);
7100            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_INVERSION_ENABLED);
7101
7102            INSTANT_APP_SETTINGS.add(DEFAULT_INPUT_METHOD);
7103            INSTANT_APP_SETTINGS.add(ENABLED_INPUT_METHODS);
7104
7105            INSTANT_APP_SETTINGS.add(ANDROID_ID);
7106        }
7107
7108        /**
7109         * Helper method for determining if a location provider is enabled.
7110         *
7111         * @param cr the content resolver to use
7112         * @param provider the location provider to query
7113         * @return true if the provider is enabled
7114         *
7115         * @deprecated use {@link #LOCATION_MODE} or
7116         *             {@link LocationManager#isProviderEnabled(String)}
7117         */
7118        @Deprecated
7119        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
7120            return isLocationProviderEnabledForUser(cr, provider, UserHandle.myUserId());
7121        }
7122
7123        /**
7124         * Helper method for determining if a location provider is enabled.
7125         * @param cr the content resolver to use
7126         * @param provider the location provider to query
7127         * @param userId the userId to query
7128         * @return true if the provider is enabled
7129         * @deprecated use {@link #LOCATION_MODE} or
7130         *             {@link LocationManager#isProviderEnabled(String)}
7131         * @hide
7132         */
7133        @Deprecated
7134        public static final boolean isLocationProviderEnabledForUser(ContentResolver cr, String provider, int userId) {
7135            String allowedProviders = Settings.Secure.getStringForUser(cr,
7136                    LOCATION_PROVIDERS_ALLOWED, userId);
7137            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
7138        }
7139
7140        /**
7141         * Thread-safe method for enabling or disabling a single location provider.
7142         * @param cr the content resolver to use
7143         * @param provider the location provider to enable or disable
7144         * @param enabled true if the provider should be enabled
7145         * @deprecated use {@link #putInt(ContentResolver, String, int)} and {@link #LOCATION_MODE}
7146         */
7147        @Deprecated
7148        public static final void setLocationProviderEnabled(ContentResolver cr,
7149                String provider, boolean enabled) {
7150            setLocationProviderEnabledForUser(cr, provider, enabled, UserHandle.myUserId());
7151        }
7152
7153        /**
7154         * Thread-safe method for enabling or disabling a single location provider.
7155         *
7156         * @param cr the content resolver to use
7157         * @param provider the location provider to enable or disable
7158         * @param enabled true if the provider should be enabled
7159         * @param userId the userId for which to enable/disable providers
7160         * @return true if the value was set, false on database errors
7161         * @deprecated use {@link #putIntForUser(ContentResolver, String, int, int)} and
7162         *             {@link #LOCATION_MODE}
7163         * @hide
7164         */
7165        @Deprecated
7166        public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
7167                String provider, boolean enabled, int userId) {
7168            synchronized (mLocationSettingsLock) {
7169                // to ensure thread safety, we write the provider name with a '+' or '-'
7170                // and let the SettingsProvider handle it rather than reading and modifying
7171                // the list of enabled providers.
7172                if (enabled) {
7173                    provider = "+" + provider;
7174                } else {
7175                    provider = "-" + provider;
7176                }
7177                return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
7178                        userId);
7179            }
7180        }
7181
7182        /**
7183         * Saves the current location mode into {@link #LOCATION_PREVIOUS_MODE}.
7184         */
7185        private static final boolean saveLocationModeForUser(ContentResolver cr, int userId) {
7186            final int mode = getLocationModeForUser(cr, userId);
7187            return putIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE, mode, userId);
7188        }
7189
7190        /**
7191         * Restores the current location mode from {@link #LOCATION_PREVIOUS_MODE}.
7192         */
7193        private static final boolean restoreLocationModeForUser(ContentResolver cr, int userId) {
7194            int mode = getIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE,
7195                    LOCATION_MODE_HIGH_ACCURACY, userId);
7196            // Make sure that the previous mode is never "off". Otherwise the user won't be able to
7197            // turn on location any longer.
7198            if (mode == LOCATION_MODE_OFF) {
7199                mode = LOCATION_MODE_HIGH_ACCURACY;
7200            }
7201            return setLocationModeForUser(cr, mode, userId);
7202        }
7203
7204        /**
7205         * Thread-safe method for setting the location mode to one of
7206         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
7207         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
7208         * Necessary because the mode is a composite of the underlying location provider
7209         * settings.
7210         *
7211         * @param cr the content resolver to use
7212         * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
7213         * @param userId the userId for which to change mode
7214         * @return true if the value was set, false on database errors
7215         *
7216         * @throws IllegalArgumentException if mode is not one of the supported values
7217         */
7218        private static final boolean setLocationModeForUser(ContentResolver cr, int mode,
7219                int userId) {
7220            synchronized (mLocationSettingsLock) {
7221                boolean gps = false;
7222                boolean network = false;
7223                switch (mode) {
7224                    case LOCATION_MODE_PREVIOUS:
7225                        // Retrieve the actual mode and set to that mode.
7226                        return restoreLocationModeForUser(cr, userId);
7227                    case LOCATION_MODE_OFF:
7228                        saveLocationModeForUser(cr, userId);
7229                        break;
7230                    case LOCATION_MODE_SENSORS_ONLY:
7231                        gps = true;
7232                        break;
7233                    case LOCATION_MODE_BATTERY_SAVING:
7234                        network = true;
7235                        break;
7236                    case LOCATION_MODE_HIGH_ACCURACY:
7237                        gps = true;
7238                        network = true;
7239                        break;
7240                    default:
7241                        throw new IllegalArgumentException("Invalid location mode: " + mode);
7242                }
7243                // Note it's important that we set the NLP mode first. The Google implementation
7244                // of NLP clears its NLP consent setting any time it receives a
7245                // LocationManager.PROVIDERS_CHANGED_ACTION broadcast and NLP is disabled. Also,
7246                // it shows an NLP consent dialog any time it receives the broadcast, NLP is
7247                // enabled, and the NLP consent is not set. If 1) we were to enable GPS first,
7248                // 2) a setup wizard has its own NLP consent UI that sets the NLP consent setting,
7249                // and 3) the receiver happened to complete before we enabled NLP, then the Google
7250                // NLP would detect the attempt to enable NLP and show a redundant NLP consent
7251                // dialog. Then the people who wrote the setup wizard would be sad.
7252                boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
7253                        cr, LocationManager.NETWORK_PROVIDER, network, userId);
7254                boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
7255                        cr, LocationManager.GPS_PROVIDER, gps, userId);
7256                return gpsSuccess && nlpSuccess;
7257            }
7258        }
7259
7260        /**
7261         * Thread-safe method for reading the location mode, returns one of
7262         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
7263         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. Necessary
7264         * because the mode is a composite of the underlying location provider settings.
7265         *
7266         * @param cr the content resolver to use
7267         * @param userId the userId for which to read the mode
7268         * @return the location mode
7269         */
7270        private static final int getLocationModeForUser(ContentResolver cr, int userId) {
7271            synchronized (mLocationSettingsLock) {
7272                boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
7273                        cr, LocationManager.GPS_PROVIDER, userId);
7274                boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
7275                        cr, LocationManager.NETWORK_PROVIDER, userId);
7276                if (gpsEnabled && networkEnabled) {
7277                    return LOCATION_MODE_HIGH_ACCURACY;
7278                } else if (gpsEnabled) {
7279                    return LOCATION_MODE_SENSORS_ONLY;
7280                } else if (networkEnabled) {
7281                    return LOCATION_MODE_BATTERY_SAVING;
7282                } else {
7283                    return LOCATION_MODE_OFF;
7284                }
7285            }
7286        }
7287    }
7288
7289    /**
7290     * Global system settings, containing preferences that always apply identically
7291     * to all defined users.  Applications can read these but are not allowed to write;
7292     * like the "Secure" settings, these are for preferences that the user must
7293     * explicitly modify through the system UI or specialized APIs for those values.
7294     */
7295    public static final class Global extends NameValueTable {
7296        /**
7297         * The content:// style URL for global secure settings items.  Not public.
7298         */
7299        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");
7300
7301        /**
7302         * Whether users are allowed to add more users or guest from lockscreen.
7303         * <p>
7304         * Type: int
7305         * @hide
7306         */
7307        public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";
7308
7309        /**
7310         * Setting whether the global gesture for enabling accessibility is enabled.
7311         * If this gesture is enabled the user will be able to perfrom it to enable
7312         * the accessibility state without visiting the settings app.
7313         *
7314         * @hide
7315         * No longer used. Should be removed once all dependencies have been updated.
7316         */
7317        public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
7318                "enable_accessibility_global_gesture_enabled";
7319
7320        /**
7321         * Whether Airplane Mode is on.
7322         */
7323        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
7324
7325        /**
7326         * Whether Theater Mode is on.
7327         * {@hide}
7328         */
7329        @SystemApi
7330        public static final String THEATER_MODE_ON = "theater_mode_on";
7331
7332        /**
7333         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
7334         */
7335        public static final String RADIO_BLUETOOTH = "bluetooth";
7336
7337        /**
7338         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
7339         */
7340        public static final String RADIO_WIFI = "wifi";
7341
7342        /**
7343         * {@hide}
7344         */
7345        public static final String RADIO_WIMAX = "wimax";
7346        /**
7347         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
7348         */
7349        public static final String RADIO_CELL = "cell";
7350
7351        /**
7352         * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
7353         */
7354        public static final String RADIO_NFC = "nfc";
7355
7356        /**
7357         * A comma separated list of radios that need to be disabled when airplane mode
7358         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
7359         * included in the comma separated list.
7360         */
7361        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
7362
7363        /**
7364         * A comma separated list of radios that should to be disabled when airplane mode
7365         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
7366         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
7367         * will be turned off when entering airplane mode, but the user will be able to reenable
7368         * Wifi in the Settings app.
7369         *
7370         * {@hide}
7371         */
7372        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
7373
7374        /**
7375         * A Long representing a bitmap of profiles that should be disabled when bluetooth starts.
7376         * See {@link android.bluetooth.BluetoothProfile}.
7377         * {@hide}
7378         */
7379        public static final String BLUETOOTH_DISABLED_PROFILES = "bluetooth_disabled_profiles";
7380
7381        /**
7382         * A semi-colon separated list of Bluetooth interoperability workarounds.
7383         * Each entry is a partial Bluetooth device address string and an integer representing
7384         * the feature to be disabled, separated by a comma. The integer must correspond
7385         * to a interoperability feature as defined in "interop.h" in /system/bt.
7386         * <p>
7387         * Example: <br/>
7388         *   "00:11:22,0;01:02:03:04,2"
7389         * @hide
7390         */
7391       public static final String BLUETOOTH_INTEROPERABILITY_LIST = "bluetooth_interoperability_list";
7392
7393        /**
7394         * The policy for deciding when Wi-Fi should go to sleep (which will in
7395         * turn switch to using the mobile data as an Internet connection).
7396         * <p>
7397         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
7398         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
7399         * {@link #WIFI_SLEEP_POLICY_NEVER}.
7400         */
7401        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
7402
7403        /**
7404         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
7405         * policy, which is to sleep shortly after the turning off
7406         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
7407         */
7408        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
7409
7410        /**
7411         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
7412         * the device is on battery, and never go to sleep when the device is
7413         * plugged in.
7414         */
7415        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
7416
7417        /**
7418         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
7419         */
7420        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
7421
7422        /**
7423         * Value to specify if the user prefers the date, time and time zone
7424         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
7425         */
7426        public static final String AUTO_TIME = "auto_time";
7427
7428        /**
7429         * Value to specify if the user prefers the time zone
7430         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
7431         */
7432        public static final String AUTO_TIME_ZONE = "auto_time_zone";
7433
7434        /**
7435         * URI for the car dock "in" event sound.
7436         * @hide
7437         */
7438        public static final String CAR_DOCK_SOUND = "car_dock_sound";
7439
7440        /**
7441         * URI for the car dock "out" event sound.
7442         * @hide
7443         */
7444        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
7445
7446        /**
7447         * URI for the desk dock "in" event sound.
7448         * @hide
7449         */
7450        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
7451
7452        /**
7453         * URI for the desk dock "out" event sound.
7454         * @hide
7455         */
7456        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
7457
7458        /**
7459         * Whether to play a sound for dock events.
7460         * @hide
7461         */
7462        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
7463
7464        /**
7465         * Whether to play a sound for dock events, only when an accessibility service is on.
7466         * @hide
7467         */
7468        public static final String DOCK_SOUNDS_ENABLED_WHEN_ACCESSIBILITY = "dock_sounds_enabled_when_accessbility";
7469
7470        /**
7471         * URI for the "device locked" (keyguard shown) sound.
7472         * @hide
7473         */
7474        public static final String LOCK_SOUND = "lock_sound";
7475
7476        /**
7477         * URI for the "device unlocked" sound.
7478         * @hide
7479         */
7480        public static final String UNLOCK_SOUND = "unlock_sound";
7481
7482        /**
7483         * URI for the "device is trusted" sound, which is played when the device enters the trusted
7484         * state without unlocking.
7485         * @hide
7486         */
7487        public static final String TRUSTED_SOUND = "trusted_sound";
7488
7489        /**
7490         * URI for the low battery sound file.
7491         * @hide
7492         */
7493        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
7494
7495        /**
7496         * Whether to play a sound for low-battery alerts.
7497         * @hide
7498         */
7499        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
7500
7501        /**
7502         * URI for the "wireless charging started" sound.
7503         * @hide
7504         */
7505        public static final String WIRELESS_CHARGING_STARTED_SOUND =
7506                "wireless_charging_started_sound";
7507
7508        /**
7509         * Whether to play a sound for charging events.
7510         * @hide
7511         */
7512        public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";
7513
7514        /**
7515         * Whether we keep the device on while the device is plugged in.
7516         * Supported values are:
7517         * <ul>
7518         * <li>{@code 0} to never stay on while plugged in</li>
7519         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
7520         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
7521         * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
7522         * </ul>
7523         * These values can be OR-ed together.
7524         */
7525        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
7526
7527        /**
7528         * When the user has enable the option to have a "bug report" command
7529         * in the power menu.
7530         * @hide
7531         */
7532        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
7533
7534        /**
7535         * Whether ADB is enabled.
7536         */
7537        public static final String ADB_ENABLED = "adb_enabled";
7538
7539        /**
7540         * Whether Views are allowed to save their attribute data.
7541         * @hide
7542         */
7543        public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";
7544
7545        /**
7546         * Whether assisted GPS should be enabled or not.
7547         * @hide
7548         */
7549        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
7550
7551        /**
7552         * Whether bluetooth is enabled/disabled
7553         * 0=disabled. 1=enabled.
7554         */
7555        public static final String BLUETOOTH_ON = "bluetooth_on";
7556
7557        /**
7558         * CDMA Cell Broadcast SMS
7559         *                            0 = CDMA Cell Broadcast SMS disabled
7560         *                            1 = CDMA Cell Broadcast SMS enabled
7561         * @hide
7562         */
7563        public static final String CDMA_CELL_BROADCAST_SMS =
7564                "cdma_cell_broadcast_sms";
7565
7566        /**
7567         * The CDMA roaming mode 0 = Home Networks, CDMA default
7568         *                       1 = Roaming on Affiliated networks
7569         *                       2 = Roaming on any networks
7570         * @hide
7571         */
7572        public static final String CDMA_ROAMING_MODE = "roaming_settings";
7573
7574        /**
7575         * The CDMA subscription mode 0 = RUIM/SIM (default)
7576         *                                1 = NV
7577         * @hide
7578         */
7579        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
7580
7581        /** Inactivity timeout to track mobile data activity.
7582        *
7583        * If set to a positive integer, it indicates the inactivity timeout value in seconds to
7584        * infer the data activity of mobile network. After a period of no activity on mobile
7585        * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
7586        * intent is fired to indicate a transition of network status from "active" to "idle". Any
7587        * subsequent activity on mobile networks triggers the firing of {@code
7588        * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
7589        *
7590        * Network activity refers to transmitting or receiving data on the network interfaces.
7591        *
7592        * Tracking is disabled if set to zero or negative value.
7593        *
7594        * @hide
7595        */
7596       public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";
7597
7598       /** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
7599        * but for Wifi network.
7600        * @hide
7601        */
7602       public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";
7603
7604       /**
7605        * Whether or not data roaming is enabled. (0 = false, 1 = true)
7606        */
7607       public static final String DATA_ROAMING = "data_roaming";
7608
7609       /**
7610        * The value passed to a Mobile DataConnection via bringUp which defines the
7611        * number of retries to preform when setting up the initial connection. The default
7612        * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
7613        * @hide
7614        */
7615       public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";
7616
7617       /**
7618        * Whether any package can be on external storage. When this is true, any
7619        * package, regardless of manifest values, is a candidate for installing
7620        * or moving onto external storage. (0 = false, 1 = true)
7621        * @hide
7622        */
7623       public static final String FORCE_ALLOW_ON_EXTERNAL = "force_allow_on_external";
7624
7625        /**
7626         * Whether any activity can be resized. When this is true, any
7627         * activity, regardless of manifest values, can be resized for multi-window.
7628         * (0 = false, 1 = true)
7629         * @hide
7630         */
7631        public static final String DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES
7632                = "force_resizable_activities";
7633
7634        /**
7635         * Whether to enable experimental freeform support for windows.
7636         * @hide
7637         */
7638        public static final String DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT
7639                = "enable_freeform_support";
7640
7641       /**
7642        * Whether user has enabled development settings.
7643        */
7644       public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";
7645
7646       /**
7647        * Whether the device has been provisioned (0 = false, 1 = true).
7648        * <p>On a multiuser device with a separate system user, the screen may be locked
7649        * as soon as this is set to true and further activities cannot be launched on the
7650        * system user unless they are marked to show over keyguard.
7651        */
7652       public static final String DEVICE_PROVISIONED = "device_provisioned";
7653
7654       /**
7655        * Whether mobile data should be allowed while the device is being provisioned.
7656        * This allows the provisioning process to turn off mobile data before the user
7657        * has an opportunity to set things up, preventing other processes from burning
7658        * precious bytes before wifi is setup.
7659        * (0 = false, 1 = true)
7660        * @hide
7661        */
7662       public static final String DEVICE_PROVISIONING_MOBILE_DATA_ENABLED =
7663               "device_provisioning_mobile_data";
7664
7665       /**
7666        * The saved value for WindowManagerService.setForcedDisplaySize().
7667        * Two integers separated by a comma.  If unset, then use the real display size.
7668        * @hide
7669        */
7670       public static final String DISPLAY_SIZE_FORCED = "display_size_forced";
7671
7672       /**
7673        * The saved value for WindowManagerService.setForcedDisplayScalingMode().
7674        * 0 or unset if scaling is automatic, 1 if scaling is disabled.
7675        * @hide
7676        */
7677       public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";
7678
7679       /**
7680        * The maximum size, in bytes, of a download that the download manager will transfer over
7681        * a non-wifi connection.
7682        * @hide
7683        */
7684       public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
7685               "download_manager_max_bytes_over_mobile";
7686
7687       /**
7688        * The recommended maximum size, in bytes, of a download that the download manager should
7689        * transfer over a non-wifi connection. Over this size, the use will be warned, but will
7690        * have the option to start the download over the mobile connection anyway.
7691        * @hide
7692        */
7693       public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
7694               "download_manager_recommended_max_bytes_over_mobile";
7695
7696       /**
7697        * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
7698        */
7699       @Deprecated
7700       public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
7701
7702       /**
7703        * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
7704        * sent or processed. (0 = false, 1 = true)
7705        * @hide
7706        */
7707       public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";
7708
7709       /**
7710        * Whether HDMI System Audio Control feature is enabled. If enabled, TV will try to turn on
7711        * system audio mode if there's a connected CEC-enabled AV Receiver. Then audio stream will
7712        * be played on AVR instead of TV spaeker. If disabled, the system audio mode will never be
7713        * activated.
7714        * @hide
7715        */
7716        public static final String HDMI_SYSTEM_AUDIO_CONTROL_ENABLED =
7717                "hdmi_system_audio_control_enabled";
7718
7719       /**
7720        * Whether TV will automatically turn on upon reception of the CEC command
7721        * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
7722        * @hide
7723        */
7724       public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
7725               "hdmi_control_auto_wakeup_enabled";
7726
7727       /**
7728        * Whether TV will also turn off other CEC devices when it goes to standby mode.
7729        * (0 = false, 1 = true)
7730        * @hide
7731        */
7732       public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
7733               "hdmi_control_auto_device_off_enabled";
7734
7735       /**
7736        * The interval in milliseconds at which location requests will be throttled when they are
7737        * coming from the background.
7738        * @hide
7739        */
7740       public static final String LOCATION_BACKGROUND_THROTTLE_INTERVAL_MS =
7741                "location_background_throttle_interval_ms";
7742
7743        /**
7744         * Packages that are whitelisted for background throttling (throttling will not be applied).
7745         * @hide
7746         */
7747        public static final String LOCATION_BACKGROUND_THROTTLE_PACKAGE_WHITELIST =
7748            "location_background_throttle_package_whitelist";
7749
7750       /**
7751        * Whether TV will switch to MHL port when a mobile device is plugged in.
7752        * (0 = false, 1 = true)
7753        * @hide
7754        */
7755       public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";
7756
7757       /**
7758        * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
7759        * @hide
7760        */
7761       public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";
7762
7763       /**
7764        * Whether mobile data connections are allowed by the user.  See
7765        * ConnectivityManager for more info.
7766        * @hide
7767        */
7768       public static final String MOBILE_DATA = "mobile_data";
7769
7770       /**
7771        * Whether the mobile data connection should remain active even when higher
7772        * priority networks like WiFi are active, to help make network switching faster.
7773        *
7774        * See ConnectivityService for more info.
7775        *
7776        * (0 = disabled, 1 = enabled)
7777        * @hide
7778        */
7779       public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
7780
7781        /**
7782         * Size of the event buffer for IP connectivity metrics.
7783         * @hide
7784         */
7785        public static final String CONNECTIVITY_METRICS_BUFFER_SIZE =
7786              "connectivity_metrics_buffer_size";
7787
7788       /** {@hide} */
7789       public static final String NETSTATS_ENABLED = "netstats_enabled";
7790       /** {@hide} */
7791       public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
7792       /** {@hide} */
7793       public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
7794       /** {@hide} */
7795       public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
7796       /** {@hide} */
7797       public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
7798
7799       /** {@hide} */
7800       public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
7801       /** {@hide} */
7802       public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
7803       /** {@hide} */
7804       public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
7805       /** {@hide} */
7806       public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";
7807
7808       /** {@hide} */
7809       public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
7810       /** {@hide} */
7811       public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
7812       /** {@hide} */
7813       public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
7814       /** {@hide} */
7815       public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";
7816
7817       /** {@hide} */
7818       public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
7819       /** {@hide} */
7820       public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
7821       /** {@hide} */
7822       public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
7823       /** {@hide} */
7824       public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";
7825
7826       /**
7827        * User preference for which network(s) should be used. Only the
7828        * connectivity service should touch this.
7829        */
7830       public static final String NETWORK_PREFERENCE = "network_preference";
7831
7832       /**
7833        * Which package name to use for network scoring. If null, or if the package is not a valid
7834        * scorer app, external network scores will neither be requested nor accepted.
7835        * @hide
7836        */
7837       public static final String NETWORK_SCORER_APP = "network_scorer_app";
7838
7839       /**
7840        * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
7841        * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
7842        * exceeded.
7843        * @hide
7844        */
7845       public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
7846
7847       /**
7848        * The length of time in milli-seconds that automatic small adjustments to
7849        * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
7850        * @hide
7851        */
7852       public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
7853
7854       /** Preferred NTP server. {@hide} */
7855       public static final String NTP_SERVER = "ntp_server";
7856       /** Timeout in milliseconds to wait for NTP server. {@hide} */
7857       public static final String NTP_TIMEOUT = "ntp_timeout";
7858
7859       /** {@hide} */
7860       public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";
7861
7862       /**
7863        * Sample validity in seconds to configure for the system DNS resolver.
7864        * {@hide}
7865        */
7866       public static final String DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS =
7867               "dns_resolver_sample_validity_seconds";
7868
7869       /**
7870        * Success threshold in percent for use with the system DNS resolver.
7871        * {@hide}
7872        */
7873       public static final String DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT =
7874                "dns_resolver_success_threshold_percent";
7875
7876       /**
7877        * Minimum number of samples needed for statistics to be considered meaningful in the
7878        * system DNS resolver.
7879        * {@hide}
7880        */
7881       public static final String DNS_RESOLVER_MIN_SAMPLES = "dns_resolver_min_samples";
7882
7883       /**
7884        * Maximum number taken into account for statistics purposes in the system DNS resolver.
7885        * {@hide}
7886        */
7887       public static final String DNS_RESOLVER_MAX_SAMPLES = "dns_resolver_max_samples";
7888
7889       /**
7890        * Whether to disable the automatic scheduling of system updates.
7891        * 1 = system updates won't be automatically scheduled (will always
7892        * present notification instead).
7893        * 0 = system updates will be automatically scheduled. (default)
7894        * @hide
7895        */
7896       @SystemApi
7897       public static final String OTA_DISABLE_AUTOMATIC_UPDATE = "ota_disable_automatic_update";
7898
7899       /**
7900        * Whether the package manager should send package verification broadcasts for verifiers to
7901        * review apps prior to installation.
7902        * 1 = request apps to be verified prior to installation, if a verifier exists.
7903        * 0 = do not verify apps before installation
7904        * @hide
7905        */
7906       public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";
7907
7908       /** Timeout for package verification.
7909        * @hide */
7910       public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";
7911
7912       /** Default response code for package verification.
7913        * @hide */
7914       public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";
7915
7916       /**
7917        * Show package verification setting in the Settings app.
7918        * 1 = show (default)
7919        * 0 = hide
7920        * @hide
7921        */
7922       public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";
7923
7924       /**
7925        * Run package verification on apps installed through ADB/ADT/USB
7926        * 1 = perform package verification on ADB installs (default)
7927        * 0 = bypass package verification on ADB installs
7928        * @hide
7929        */
7930       public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";
7931
7932       /**
7933        * Time since last fstrim (milliseconds) after which we force one to happen
7934        * during device startup.  If unset, the default is 3 days.
7935        * @hide
7936        */
7937       public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";
7938
7939       /**
7940        * The interval in milliseconds at which to check packet counts on the
7941        * mobile data interface when screen is on, to detect possible data
7942        * connection problems.
7943        * @hide
7944        */
7945       public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
7946               "pdp_watchdog_poll_interval_ms";
7947
7948       /**
7949        * The interval in milliseconds at which to check packet counts on the
7950        * mobile data interface when screen is off, to detect possible data
7951        * connection problems.
7952        * @hide
7953        */
7954       public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
7955               "pdp_watchdog_long_poll_interval_ms";
7956
7957       /**
7958        * The interval in milliseconds at which to check packet counts on the
7959        * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
7960        * outgoing packets has been reached without incoming packets.
7961        * @hide
7962        */
7963       public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
7964               "pdp_watchdog_error_poll_interval_ms";
7965
7966       /**
7967        * The number of outgoing packets sent without seeing an incoming packet
7968        * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
7969        * device is logged to the event log
7970        * @hide
7971        */
7972       public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
7973               "pdp_watchdog_trigger_packet_count";
7974
7975       /**
7976        * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
7977        * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
7978        * attempting data connection recovery.
7979        * @hide
7980        */
7981       public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
7982               "pdp_watchdog_error_poll_count";
7983
7984       /**
7985        * The number of failed PDP reset attempts before moving to something more
7986        * drastic: re-registering to the network.
7987        * @hide
7988        */
7989       public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
7990               "pdp_watchdog_max_pdp_reset_fail_count";
7991
7992       /**
7993        * A positive value indicates how often the SamplingProfiler
7994        * should take snapshots. Zero value means SamplingProfiler
7995        * is disabled.
7996        *
7997        * @hide
7998        */
7999       public static final String SAMPLING_PROFILER_MS = "sampling_profiler_ms";
8000
8001       /**
8002        * URL to open browser on to allow user to manage a prepay account
8003        * @hide
8004        */
8005       public static final String SETUP_PREPAID_DATA_SERVICE_URL =
8006               "setup_prepaid_data_service_url";
8007
8008       /**
8009        * URL to attempt a GET on to see if this is a prepay device
8010        * @hide
8011        */
8012       public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
8013               "setup_prepaid_detection_target_url";
8014
8015       /**
8016        * Host to check for a redirect to after an attempt to GET
8017        * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
8018        * this is a prepaid device with zero balance.)
8019        * @hide
8020        */
8021       public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
8022               "setup_prepaid_detection_redir_host";
8023
8024       /**
8025        * The interval in milliseconds at which to check the number of SMS sent out without asking
8026        * for use permit, to limit the un-authorized SMS usage.
8027        *
8028        * @hide
8029        */
8030       public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
8031               "sms_outgoing_check_interval_ms";
8032
8033       /**
8034        * The number of outgoing SMS sent without asking for user permit (of {@link
8035        * #SMS_OUTGOING_CHECK_INTERVAL_MS}
8036        *
8037        * @hide
8038        */
8039       public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
8040               "sms_outgoing_check_max_count";
8041
8042       /**
8043        * Used to disable SMS short code confirmation - defaults to true.
8044        * True indcates we will do the check, etc.  Set to false to disable.
8045        * @see com.android.internal.telephony.SmsUsageMonitor
8046        * @hide
8047        */
8048       public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";
8049
8050        /**
8051         * Used to select which country we use to determine premium sms codes.
8052         * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
8053         * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
8054         * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
8055         * @hide
8056         */
8057        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";
8058
8059       /**
8060        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
8061        * @hide
8062        */
8063       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";
8064
8065       /**
8066        * Used to disable Tethering on a device - defaults to true
8067        * @hide
8068        */
8069       public static final String TETHER_SUPPORTED = "tether_supported";
8070
8071       /**
8072        * Used to require DUN APN on the device or not - defaults to a build config value
8073        * which defaults to false
8074        * @hide
8075        */
8076       public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
8077
8078       /**
8079        * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
8080        * corresponding build config values are set it will override the APN DB
8081        * values.
8082        * Consists of a comma seperated list of strings:
8083        * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
8084        * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
8085        * @hide
8086        */
8087       public static final String TETHER_DUN_APN = "tether_dun_apn";
8088
8089       /**
8090        * List of carrier apps which are whitelisted to prompt the user for install when
8091        * a sim card with matching uicc carrier privilege rules is inserted.
8092        *
8093        * The value is "package1;package2;..."
8094        * @hide
8095        */
8096       public static final String CARRIER_APP_WHITELIST = "carrier_app_whitelist";
8097
8098       /**
8099        * USB Mass Storage Enabled
8100        */
8101       public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
8102
8103       /**
8104        * If this setting is set (to anything), then all references
8105        * to Gmail on the device must change to Google Mail.
8106        */
8107       public static final String USE_GOOGLE_MAIL = "use_google_mail";
8108
8109        /**
8110         * Webview Data reduction proxy key.
8111         * @hide
8112         */
8113        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
8114                "webview_data_reduction_proxy_key";
8115
8116       /**
8117        * Whether or not the WebView fallback mechanism should be enabled.
8118        * 0=disabled, 1=enabled.
8119        * @hide
8120        */
8121       public static final String WEBVIEW_FALLBACK_LOGIC_ENABLED =
8122               "webview_fallback_logic_enabled";
8123
8124       /**
8125        * Name of the package used as WebView provider (if unset the provider is instead determined
8126        * by the system).
8127        * @hide
8128        */
8129       public static final String WEBVIEW_PROVIDER = "webview_provider";
8130
8131       /**
8132        * Developer setting to enable WebView multiprocess rendering.
8133        * @hide
8134        */
8135       @SystemApi
8136       public static final String WEBVIEW_MULTIPROCESS = "webview_multiprocess";
8137
8138       /**
8139        * The maximum number of notifications shown in 24 hours when switching networks.
8140        * @hide
8141        */
8142       public static final String NETWORK_SWITCH_NOTIFICATION_DAILY_LIMIT =
8143              "network_switch_notification_daily_limit";
8144
8145       /**
8146        * The minimum time in milliseconds between notifications when switching networks.
8147        * @hide
8148        */
8149       public static final String NETWORK_SWITCH_NOTIFICATION_RATE_LIMIT_MILLIS =
8150              "network_switch_notification_rate_limit_millis";
8151
8152       /**
8153        * Whether to automatically switch away from wifi networks that lose Internet access.
8154        * Only meaningful if config_networkAvoidBadWifi is set to 0, otherwise the system always
8155        * avoids such networks. Valid values are:
8156        *
8157        * 0: Don't avoid bad wifi, don't prompt the user. Get stuck on bad wifi like it's 2013.
8158        * null: Ask the user whether to switch away from bad wifi.
8159        * 1: Avoid bad wifi.
8160        *
8161        * @hide
8162        */
8163       public static final String NETWORK_AVOID_BAD_WIFI = "network_avoid_bad_wifi";
8164
8165       /**
8166        * User setting for ConnectivityManager.getMeteredMultipathPreference(). This value may be
8167        * overridden by the system based on device or application state. If null, the value
8168        * specified by config_networkMeteredMultipathPreference is used.
8169        *
8170        * @hide
8171        */
8172       public static final String NETWORK_METERED_MULTIPATH_PREFERENCE =
8173               "network_metered_multipath_preference";
8174
8175       /**
8176        * The thresholds of the wifi throughput badging (SD, HD etc.) as a comma-delimited list of
8177        * colon-delimited key-value pairs. The key is the badging enum value defined in
8178        * android.net.ScoredNetwork and the value is the minimum sustained network throughput in
8179        * kbps required for the badge. For example: "10:3000,20:5000,30:25000"
8180        *
8181        * @hide
8182        */
8183       @SystemApi
8184       public static final String WIFI_BADGING_THRESHOLDS = "wifi_badging_thresholds";
8185
8186       /**
8187        * Whether Wifi display is enabled/disabled
8188        * 0=disabled. 1=enabled.
8189        * @hide
8190        */
8191       public static final String WIFI_DISPLAY_ON = "wifi_display_on";
8192
8193       /**
8194        * Whether Wifi display certification mode is enabled/disabled
8195        * 0=disabled. 1=enabled.
8196        * @hide
8197        */
8198       public static final String WIFI_DISPLAY_CERTIFICATION_ON =
8199               "wifi_display_certification_on";
8200
8201       /**
8202        * WPS Configuration method used by Wifi display, this setting only
8203        * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
8204        *
8205        * Possible values are:
8206        *
8207        * WpsInfo.INVALID: use default WPS method chosen by framework
8208        * WpsInfo.PBC    : use Push button
8209        * WpsInfo.KEYPAD : use Keypad
8210        * WpsInfo.DISPLAY: use Display
8211        * @hide
8212        */
8213       public static final String WIFI_DISPLAY_WPS_CONFIG =
8214           "wifi_display_wps_config";
8215
8216       /**
8217        * Whether to notify the user of open networks.
8218        * <p>
8219        * If not connected and the scan results have an open network, we will
8220        * put this notification up. If we attempt to connect to a network or
8221        * the open network(s) disappear, we remove the notification. When we
8222        * show the notification, we will not show it again for
8223        * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
8224        */
8225       public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
8226               "wifi_networks_available_notification_on";
8227       /**
8228        * {@hide}
8229        */
8230       public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
8231               "wimax_networks_available_notification_on";
8232
8233       /**
8234        * Delay (in seconds) before repeating the Wi-Fi networks available notification.
8235        * Connecting to a network will reset the timer.
8236        */
8237       public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
8238               "wifi_networks_available_repeat_delay";
8239
8240       /**
8241        * 802.11 country code in ISO 3166 format
8242        * @hide
8243        */
8244       public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
8245
8246       /**
8247        * The interval in milliseconds to issue wake up scans when wifi needs
8248        * to connect. This is necessary to connect to an access point when
8249        * device is on the move and the screen is off.
8250        * @hide
8251        */
8252       public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
8253               "wifi_framework_scan_interval_ms";
8254
8255       /**
8256        * The interval in milliseconds after which Wi-Fi is considered idle.
8257        * When idle, it is possible for the device to be switched from Wi-Fi to
8258        * the mobile data network.
8259        * @hide
8260        */
8261       public static final String WIFI_IDLE_MS = "wifi_idle_ms";
8262
8263       /**
8264        * When the number of open networks exceeds this number, the
8265        * least-recently-used excess networks will be removed.
8266        */
8267       public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
8268
8269       /**
8270        * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
8271        */
8272       public static final String WIFI_ON = "wifi_on";
8273
8274       /**
8275        * Setting to allow scans to be enabled even wifi is turned off for connectivity.
8276        * @hide
8277        */
8278       public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
8279                "wifi_scan_always_enabled";
8280
8281        /**
8282         * Value to specify if Wi-Fi Wakeup feature is enabled.
8283         *
8284         * Type: int (0 for false, 1 for true)
8285         * @hide
8286         */
8287        @SystemApi
8288        public static final String WIFI_WAKEUP_ENABLED = "wifi_wakeup_enabled";
8289
8290        /**
8291         * Value to specify whether network quality scores and badging should be shown in the UI.
8292         *
8293         * Type: int (0 for false, 1 for true)
8294         * @hide
8295         */
8296        public static final String NETWORK_SCORING_UI_ENABLED = "network_scoring_ui_enabled";
8297
8298        /**
8299         * Value to specify if network recommendations from
8300         * {@link com.android.server.NetworkScoreService} are enabled.
8301         *
8302         * Type: int
8303         * Valid values:
8304         *   -1 = Forced off
8305         *    0 = Disabled
8306         *    1 = Enabled
8307         *
8308         * Most readers of this setting should simply check if value == 1 to determined the
8309         * enabled state.
8310         * @hide
8311         */
8312        @SystemApi
8313        public static final String NETWORK_RECOMMENDATIONS_ENABLED =
8314                "network_recommendations_enabled";
8315
8316        /**
8317         * Which package name to use for network recommendations. If null, network recommendations
8318         * will neither be requested nor accepted.
8319         *
8320         * Use {@link NetworkScoreManager#getActiveScorerPackage()} to read this value and
8321         * {@link NetworkScoreManager#setActiveScorer(String)} to write it.
8322         *
8323         * Type: string - package name
8324         * @hide
8325         */
8326        public static final String NETWORK_RECOMMENDATIONS_PACKAGE =
8327                "network_recommendations_package";
8328
8329        /**
8330         * Value to specify if the Wi-Fi Framework should defer to
8331         * {@link com.android.server.NetworkScoreService} for evaluating saved open networks.
8332         *
8333         * Type: int (0 for false, 1 for true)
8334         * @hide
8335         */
8336        @SystemApi
8337        public static final String CURATE_SAVED_OPEN_NETWORKS = "curate_saved_open_networks";
8338
8339        /**
8340         * The package name of the application that connect and secures high quality open wifi
8341         * networks automatically.
8342         *
8343         * Type: string package name or null if the feature is either not provided or disabled.
8344         * @hide
8345         */
8346        public static final String USE_OPEN_WIFI_PACKAGE = "use_open_wifi_package";
8347
8348        /**
8349         * The number of milliseconds the {@link com.android.server.NetworkScoreService}
8350         * will give a recommendation request to complete before returning a default response.
8351         *
8352         * Type: long
8353         * @hide
8354         */
8355        public static final String NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS =
8356                "network_recommendation_request_timeout_ms";
8357
8358        /**
8359         * The expiration time in milliseconds for the {@link android.net.WifiKey} request cache in
8360         * {@link com.android.server.wifi.RecommendedNetworkEvaluator}.
8361         *
8362         * Type: long
8363         * @hide
8364         */
8365        public static final String RECOMMENDED_NETWORK_EVALUATOR_CACHE_EXPIRY_MS =
8366                "recommended_network_evaluator_cache_expiry_ms";
8367
8368       /**
8369        * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
8370        * connectivity.
8371        * @hide
8372        */
8373       public static final String BLE_SCAN_ALWAYS_AVAILABLE =
8374               "ble_scan_always_enabled";
8375
8376       /**
8377        * Used to save the Wifi_ON state prior to tethering.
8378        * This state will be checked to restore Wifi after
8379        * the user turns off tethering.
8380        *
8381        * @hide
8382        */
8383       public static final String WIFI_SAVED_STATE = "wifi_saved_state";
8384
8385       /**
8386        * The interval in milliseconds to scan as used by the wifi supplicant
8387        * @hide
8388        */
8389       public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
8390               "wifi_supplicant_scan_interval_ms";
8391
8392        /**
8393         * whether frameworks handles wifi auto-join
8394         * @hide
8395         */
8396       public static final String WIFI_ENHANCED_AUTO_JOIN =
8397                "wifi_enhanced_auto_join";
8398
8399        /**
8400         * whether settings show RSSI
8401         * @hide
8402         */
8403        public static final String WIFI_NETWORK_SHOW_RSSI =
8404                "wifi_network_show_rssi";
8405
8406        /**
8407        * The interval in milliseconds to scan at supplicant when p2p is connected
8408        * @hide
8409        */
8410       public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
8411               "wifi_scan_interval_p2p_connected_ms";
8412
8413       /**
8414        * Whether the Wi-Fi watchdog is enabled.
8415        */
8416       public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
8417
8418       /**
8419        * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
8420        * the setting needs to be set to 0 to disable it.
8421        * @hide
8422        */
8423       public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
8424               "wifi_watchdog_poor_network_test_enabled";
8425
8426       /**
8427        * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
8428        * needs to be set to 0 to disable it.
8429        * @hide
8430        */
8431       public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
8432               "wifi_suspend_optimizations_enabled";
8433
8434       /**
8435        * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
8436        * will enable it. In the future, additional values may be supported.
8437        * @hide
8438        */
8439       public static final String WIFI_VERBOSE_LOGGING_ENABLED =
8440               "wifi_verbose_logging_enabled";
8441
8442       /**
8443        * The maximum number of times we will retry a connection to an access
8444        * point for which we have failed in acquiring an IP address from DHCP.
8445        * A value of N means that we will make N+1 connection attempts in all.
8446        */
8447       public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
8448
8449       /**
8450        * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
8451        * data connectivity to be established after a disconnect from Wi-Fi.
8452        */
8453       public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
8454           "wifi_mobile_data_transition_wakelock_timeout_ms";
8455
8456       /**
8457        * This setting controls whether WiFi configurations created by a Device Owner app
8458        * should be locked down (that is, be editable or removable only by the Device Owner App,
8459        * not even by Settings app).
8460        * This setting takes integer values. Non-zero values mean DO created configurations
8461        * are locked down. Value of zero means they are not. Default value in the absence of
8462        * actual value to this setting is 0.
8463        */
8464       public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
8465               "wifi_device_owner_configs_lockdown";
8466
8467       /**
8468        * The operational wifi frequency band
8469        * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
8470        * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
8471        * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
8472        *
8473        * @hide
8474        */
8475       public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
8476
8477       /**
8478        * The Wi-Fi peer-to-peer device name
8479        * @hide
8480        */
8481       public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";
8482
8483       /**
8484        * The min time between wifi disable and wifi enable
8485        * @hide
8486        */
8487       public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";
8488
8489       /**
8490        * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
8491        * from an ephemeral network if there is no BSSID for that network with a non-null score that
8492        * has been seen in this time period.
8493        *
8494        * If this is less than or equal to zero, we use a more conservative behavior and only check
8495        * for a non-null score from the currently connected or target BSSID.
8496        * @hide
8497        */
8498       public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
8499               "wifi_ephemeral_out_of_range_timeout_ms";
8500
8501       /**
8502        * The number of milliseconds to delay when checking for data stalls during
8503        * non-aggressive detection. (screen is turned off.)
8504        * @hide
8505        */
8506       public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
8507               "data_stall_alarm_non_aggressive_delay_in_ms";
8508
8509       /**
8510        * The number of milliseconds to delay when checking for data stalls during
8511        * aggressive detection. (screen on or suspected data stall)
8512        * @hide
8513        */
8514       public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
8515               "data_stall_alarm_aggressive_delay_in_ms";
8516
8517       /**
8518        * The number of milliseconds to allow the provisioning apn to remain active
8519        * @hide
8520        */
8521       public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
8522               "provisioning_apn_alarm_delay_in_ms";
8523
8524       /**
8525        * The interval in milliseconds at which to check gprs registration
8526        * after the first registration mismatch of gprs and voice service,
8527        * to detect possible data network registration problems.
8528        *
8529        * @hide
8530        */
8531       public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
8532               "gprs_register_check_period_ms";
8533
8534       /**
8535        * Nonzero causes Log.wtf() to crash.
8536        * @hide
8537        */
8538       public static final String WTF_IS_FATAL = "wtf_is_fatal";
8539
8540       /**
8541        * Ringer mode. This is used internally, changing this value will not
8542        * change the ringer mode. See AudioManager.
8543        */
8544       public static final String MODE_RINGER = "mode_ringer";
8545
8546       /**
8547        * Overlay display devices setting.
8548        * The associated value is a specially formatted string that describes the
8549        * size and density of simulated secondary display devices.
8550        * <p>
8551        * Format: {width}x{height}/{dpi};...
8552        * </p><p>
8553        * Example:
8554        * <ul>
8555        * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
8556        * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
8557        * at 1080p and the second at 720p.</li>
8558        * <li>If the value is empty, then no overlay display devices are created.</li>
8559        * </ul></p>
8560        *
8561        * @hide
8562        */
8563       public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";
8564
8565        /**
8566         * Threshold values for the duration and level of a discharge cycle,
8567         * under which we log discharge cycle info.
8568         *
8569         * @hide
8570         */
8571        public static final String
8572                BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";
8573
8574        /** @hide */
8575        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
8576
8577        /**
8578         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
8579         * intents on application crashes and ANRs. If this is disabled, the
8580         * crash/ANR dialog will never display the "Report" button.
8581         * <p>
8582         * Type: int (0 = disallow, 1 = allow)
8583         *
8584         * @hide
8585         */
8586        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
8587
8588        /**
8589         * Maximum age of entries kept by {@link DropBoxManager}.
8590         *
8591         * @hide
8592         */
8593        public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";
8594
8595        /**
8596         * Maximum number of entry files which {@link DropBoxManager} will keep
8597         * around.
8598         *
8599         * @hide
8600         */
8601        public static final String DROPBOX_MAX_FILES = "dropbox_max_files";
8602
8603        /**
8604         * Maximum amount of disk space used by {@link DropBoxManager} no matter
8605         * what.
8606         *
8607         * @hide
8608         */
8609        public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";
8610
8611        /**
8612         * Percent of free disk (excluding reserve) which {@link DropBoxManager}
8613         * will use.
8614         *
8615         * @hide
8616         */
8617        public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";
8618
8619        /**
8620         * Percent of total disk which {@link DropBoxManager} will never dip
8621         * into.
8622         *
8623         * @hide
8624         */
8625        public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";
8626
8627        /**
8628         * Prefix for per-tag dropbox disable/enable settings.
8629         *
8630         * @hide
8631         */
8632        public static final String DROPBOX_TAG_PREFIX = "dropbox:";
8633
8634        /**
8635         * Lines of logcat to include with system crash/ANR/etc. reports, as a
8636         * prefix of the dropbox tag of the report type. For example,
8637         * "logcat_for_system_server_anr" controls the lines of logcat captured
8638         * with system server ANR reports. 0 to disable.
8639         *
8640         * @hide
8641         */
8642        public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";
8643
8644        /**
8645         * The interval in minutes after which the amount of free storage left
8646         * on the device is logged to the event log
8647         *
8648         * @hide
8649         */
8650        public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";
8651
8652        /**
8653         * Threshold for the amount of change in disk free space required to
8654         * report the amount of free space. Used to prevent spamming the logs
8655         * when the disk free space isn't changing frequently.
8656         *
8657         * @hide
8658         */
8659        public static final String
8660                DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";
8661
8662        /**
8663         * Minimum percentage of free storage on the device that is used to
8664         * determine if the device is running low on storage. The default is 10.
8665         * <p>
8666         * Say this value is set to 10, the device is considered running low on
8667         * storage if 90% or more of the device storage is filled up.
8668         *
8669         * @hide
8670         */
8671        public static final String
8672                SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";
8673
8674        /**
8675         * Maximum byte size of the low storage threshold. This is to ensure
8676         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
8677         * overly large threshold for large storage devices. Currently this must
8678         * be less than 2GB. This default is 500MB.
8679         *
8680         * @hide
8681         */
8682        public static final String
8683                SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";
8684
8685        /**
8686         * Minimum bytes of free storage on the device before the data partition
8687         * is considered full. By default, 1 MB is reserved to avoid system-wide
8688         * SQLite disk full exceptions.
8689         *
8690         * @hide
8691         */
8692        public static final String
8693                SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";
8694
8695        /**
8696         * Minimum percentage of storage on the device that is reserved for
8697         * cached data.
8698         *
8699         * @hide
8700         */
8701        public static final String
8702                SYS_STORAGE_CACHE_PERCENTAGE = "sys_storage_cache_percentage";
8703
8704        /**
8705         * Maximum bytes of storage on the device that is reserved for cached
8706         * data.
8707         *
8708         * @hide
8709         */
8710        public static final String
8711                SYS_STORAGE_CACHE_MAX_BYTES = "sys_storage_cache_max_bytes";
8712
8713        /**
8714         * The maximum reconnect delay for short network outages or when the
8715         * network is suspended due to phone use.
8716         *
8717         * @hide
8718         */
8719        public static final String
8720                SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";
8721
8722        /**
8723         * The number of milliseconds to delay before sending out
8724         * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
8725         *
8726         * @hide
8727         */
8728        public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";
8729
8730
8731        /**
8732         * Network sampling interval, in seconds. We'll generate link information
8733         * about bytes/packets sent and error rates based on data sampled in this interval
8734         *
8735         * @hide
8736         */
8737
8738        public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
8739                "connectivity_sampling_interval_in_seconds";
8740
8741        /**
8742         * The series of successively longer delays used in retrying to download PAC file.
8743         * Last delay is used between successful PAC downloads.
8744         *
8745         * @hide
8746         */
8747        public static final String PAC_CHANGE_DELAY = "pac_change_delay";
8748
8749        /**
8750         * Don't attempt to detect captive portals.
8751         *
8752         * @hide
8753         */
8754        public static final int CAPTIVE_PORTAL_MODE_IGNORE = 0;
8755
8756        /**
8757         * When detecting a captive portal, display a notification that
8758         * prompts the user to sign in.
8759         *
8760         * @hide
8761         */
8762        public static final int CAPTIVE_PORTAL_MODE_PROMPT = 1;
8763
8764        /**
8765         * When detecting a captive portal, immediately disconnect from the
8766         * network and do not reconnect to that network in the future.
8767         *
8768         * @hide
8769         */
8770        public static final int CAPTIVE_PORTAL_MODE_AVOID = 2;
8771
8772        /**
8773         * What to do when connecting a network that presents a captive portal.
8774         * Must be one of the CAPTIVE_PORTAL_MODE_* constants above.
8775         *
8776         * The default for this setting is CAPTIVE_PORTAL_MODE_PROMPT.
8777         * @hide
8778         */
8779        public static final String CAPTIVE_PORTAL_MODE = "captive_portal_mode";
8780
8781        /**
8782         * Setting to turn off captive portal detection. Feature is enabled by
8783         * default and the setting needs to be set to 0 to disable it.
8784         *
8785         * @deprecated use CAPTIVE_PORTAL_MODE_IGNORE to disable captive portal detection
8786         * @hide
8787         */
8788        @Deprecated
8789        public static final String
8790                CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";
8791
8792        /**
8793         * The server used for captive portal detection upon a new conection. A
8794         * 204 response code from the server is used for validation.
8795         * TODO: remove this deprecated symbol.
8796         *
8797         * @hide
8798         */
8799        public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";
8800
8801        /**
8802         * The URL used for HTTPS captive portal detection upon a new connection.
8803         * A 204 response code from the server is used for validation.
8804         *
8805         * @hide
8806         */
8807        public static final String CAPTIVE_PORTAL_HTTPS_URL = "captive_portal_https_url";
8808
8809        /**
8810         * The URL used for HTTP captive portal detection upon a new connection.
8811         * A 204 response code from the server is used for validation.
8812         *
8813         * @hide
8814         */
8815        public static final String CAPTIVE_PORTAL_HTTP_URL = "captive_portal_http_url";
8816
8817        /**
8818         * The URL used for fallback HTTP captive portal detection when previous HTTP
8819         * and HTTPS captive portal detection attemps did not return a conclusive answer.
8820         *
8821         * @hide
8822         */
8823        public static final String CAPTIVE_PORTAL_FALLBACK_URL = "captive_portal_fallback_url";
8824
8825        /**
8826         * Whether to use HTTPS for network validation. This is enabled by default and the setting
8827         * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
8828         * don't actually use HTTPS, but it's consistent with the other settings.
8829         *
8830         * @hide
8831         */
8832        public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";
8833
8834        /**
8835         * Which User-Agent string to use in the header of the captive portal detection probes.
8836         * The User-Agent field is unset when this setting has no value (HttpUrlConnection default).
8837         *
8838         * @hide
8839         */
8840        public static final String CAPTIVE_PORTAL_USER_AGENT = "captive_portal_user_agent";
8841
8842        /**
8843         * Whether network service discovery is enabled.
8844         *
8845         * @hide
8846         */
8847        public static final String NSD_ON = "nsd_on";
8848
8849        /**
8850         * Let user pick default install location.
8851         *
8852         * @hide
8853         */
8854        public static final String SET_INSTALL_LOCATION = "set_install_location";
8855
8856        /**
8857         * Default install location value.
8858         * 0 = auto, let system decide
8859         * 1 = internal
8860         * 2 = sdcard
8861         * @hide
8862         */
8863        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
8864
8865        /**
8866         * ms during which to consume extra events related to Inet connection
8867         * condition after a transtion to fully-connected
8868         *
8869         * @hide
8870         */
8871        public static final String
8872                INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";
8873
8874        /**
8875         * ms during which to consume extra events related to Inet connection
8876         * condtion after a transtion to partly-connected
8877         *
8878         * @hide
8879         */
8880        public static final String
8881                INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";
8882
8883        /** {@hide} */
8884        public static final String
8885                READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";
8886
8887        /**
8888         * Host name and port for global http proxy. Uses ':' seperator for
8889         * between host and port.
8890         */
8891        public static final String HTTP_PROXY = "http_proxy";
8892
8893        /**
8894         * Host name for global http proxy. Set via ConnectivityManager.
8895         *
8896         * @hide
8897         */
8898        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
8899
8900        /**
8901         * Integer host port for global http proxy. Set via ConnectivityManager.
8902         *
8903         * @hide
8904         */
8905        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
8906
8907        /**
8908         * Exclusion list for global proxy. This string contains a list of
8909         * comma-separated domains where the global proxy does not apply.
8910         * Domains should be listed in a comma- separated list. Example of
8911         * acceptable formats: ".domain1.com,my.domain2.com" Use
8912         * ConnectivityManager to set/get.
8913         *
8914         * @hide
8915         */
8916        public static final String
8917                GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";
8918
8919        /**
8920         * The location PAC File for the proxy.
8921         * @hide
8922         */
8923        public static final String
8924                GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";
8925
8926        /**
8927         * Enables the UI setting to allow the user to specify the global HTTP
8928         * proxy and associated exclusion list.
8929         *
8930         * @hide
8931         */
8932        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
8933
8934        /**
8935         * Setting for default DNS in case nobody suggests one
8936         *
8937         * @hide
8938         */
8939        public static final String DEFAULT_DNS_SERVER = "default_dns_server";
8940
8941        /** {@hide} */
8942        public static final String
8943                BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
8944        /** {@hide} */
8945        public static final String
8946                BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
8947        /** {@hide} */
8948        public static final String
8949                BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX = "bluetooth_a2dp_src_priority_";
8950        /** {@hide} */
8951        public static final String
8952                BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
8953        /** {@hide} */
8954        public static final String
8955                BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
8956        /** {@hide} */
8957        public static final String
8958                BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX = "bluetooth_map_client_priority_";
8959        /** {@hide} */
8960        public static final String
8961                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
8962        /** {@hide} */
8963        public static final String
8964                BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
8965        /** {@hide} */
8966        public static final String
8967                BLUETOOTH_PAN_PRIORITY_PREFIX = "bluetooth_pan_priority_";
8968
8969        /**
8970         * Activity manager specific settings.
8971         * This is encoded as a key=value list, separated by commas. Ex:
8972         *
8973         * "enforce_bg_check=true,max_cached_processes=24"
8974         *
8975         * The following keys are supported:
8976         *
8977         * <pre>
8978         * enforce_bg_check                     (boolean)
8979         * max_cached_processes                 (int)
8980         * </pre>
8981         *
8982         * <p>
8983         * Type: string
8984         * @hide
8985         * @see com.android.server.am.ActivityManagerConstants
8986         */
8987        public static final String ACTIVITY_MANAGER_CONSTANTS = "activity_manager_constants";
8988
8989        /**
8990         * Device Idle (Doze) specific settings.
8991         * This is encoded as a key=value list, separated by commas. Ex:
8992         *
8993         * "inactive_to=60000,sensing_to=400000"
8994         *
8995         * The following keys are supported:
8996         *
8997         * <pre>
8998         * inactive_to                      (long)
8999         * sensing_to                       (long)
9000         * motion_inactive_to               (long)
9001         * idle_after_inactive_to           (long)
9002         * idle_pending_to                  (long)
9003         * max_idle_pending_to              (long)
9004         * idle_pending_factor              (float)
9005         * idle_to                          (long)
9006         * max_idle_to                      (long)
9007         * idle_factor                      (float)
9008         * min_time_to_alarm                (long)
9009         * max_temp_app_whitelist_duration  (long)
9010         * notification_whitelist_duration  (long)
9011         * </pre>
9012         *
9013         * <p>
9014         * Type: string
9015         * @hide
9016         * @see com.android.server.DeviceIdleController.Constants
9017         */
9018        public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";
9019
9020        /**
9021         * Device Idle (Doze) specific settings for watches. See {@code #DEVICE_IDLE_CONSTANTS}
9022         *
9023         * <p>
9024         * Type: string
9025         * @hide
9026         * @see com.android.server.DeviceIdleController.Constants
9027         */
9028        public static final String DEVICE_IDLE_CONSTANTS_WATCH = "device_idle_constants_watch";
9029
9030        /**
9031         * Battery Saver specific settings
9032         * This is encoded as a key=value list, separated by commas. Ex:
9033         *
9034         * "vibration_disabled=true,adjust_brightness_factor=0.5"
9035         *
9036         * The following keys are supported:
9037         *
9038         * <pre>
9039         * vibration_disabled                (boolean)
9040         * animation_disabled                (boolean)
9041         * soundtrigger_disabled             (boolean)
9042         * fullbackup_deferred               (boolean)
9043         * keyvaluebackup_deferred           (boolean)
9044         * firewall_disabled                 (boolean)
9045         * gps_mode                          (int)
9046         * adjust_brightness_disabled        (boolean)
9047         * adjust_brightness_factor          (float)
9048         * </pre>
9049         * @hide
9050         * @see com.android.server.power.BatterySaverPolicy
9051         */
9052        public static final String BATTERY_SAVER_CONSTANTS = "battery_saver_constants";
9053
9054        /**
9055         * App standby (app idle) specific settings.
9056         * This is encoded as a key=value list, separated by commas. Ex:
9057         *
9058         * "idle_duration=5000,parole_interval=4500"
9059         *
9060         * The following keys are supported:
9061         *
9062         * <pre>
9063         * idle_duration2       (long)
9064         * wallclock_threshold  (long)
9065         * parole_interval      (long)
9066         * parole_duration      (long)
9067         *
9068         * idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
9069         * </pre>
9070         *
9071         * <p>
9072         * Type: string
9073         * @hide
9074         * @see com.android.server.usage.UsageStatsService.SettingsObserver
9075         */
9076        public static final String APP_IDLE_CONSTANTS = "app_idle_constants";
9077
9078        /**
9079         * Power manager specific settings.
9080         * This is encoded as a key=value list, separated by commas. Ex:
9081         *
9082         * "no_cached_wake_locks=1"
9083         *
9084         * The following keys are supported:
9085         *
9086         * <pre>
9087         * no_cached_wake_locks                 (boolean)
9088         * </pre>
9089         *
9090         * <p>
9091         * Type: string
9092         * @hide
9093         * @see com.android.server.power.PowerManagerConstants
9094         */
9095        public static final String POWER_MANAGER_CONSTANTS = "power_manager_constants";
9096
9097        /**
9098         * Alarm manager specific settings.
9099         * This is encoded as a key=value list, separated by commas. Ex:
9100         *
9101         * "min_futurity=5000,allow_while_idle_short_time=4500"
9102         *
9103         * The following keys are supported:
9104         *
9105         * <pre>
9106         * min_futurity                         (long)
9107         * min_interval                         (long)
9108         * allow_while_idle_short_time          (long)
9109         * allow_while_idle_long_time           (long)
9110         * allow_while_idle_whitelist_duration  (long)
9111         * </pre>
9112         *
9113         * <p>
9114         * Type: string
9115         * @hide
9116         * @see com.android.server.AlarmManagerService.Constants
9117         */
9118        public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";
9119
9120        /**
9121         * Job scheduler specific settings.
9122         * This is encoded as a key=value list, separated by commas. Ex:
9123         *
9124         * "min_ready_jobs_count=2,moderate_use_factor=.5"
9125         *
9126         * The following keys are supported:
9127         *
9128         * <pre>
9129         * min_idle_count                       (int)
9130         * min_charging_count                   (int)
9131         * min_connectivity_count               (int)
9132         * min_content_count                    (int)
9133         * min_ready_jobs_count                 (int)
9134         * heavy_use_factor                     (float)
9135         * moderate_use_factor                  (float)
9136         * fg_job_count                         (int)
9137         * bg_normal_job_count                  (int)
9138         * bg_moderate_job_count                (int)
9139         * bg_low_job_count                     (int)
9140         * bg_critical_job_count                (int)
9141         * </pre>
9142         *
9143         * <p>
9144         * Type: string
9145         * @hide
9146         * @see com.android.server.job.JobSchedulerService.Constants
9147         */
9148        public static final String JOB_SCHEDULER_CONSTANTS = "job_scheduler_constants";
9149
9150        /**
9151         * ShortcutManager specific settings.
9152         * This is encoded as a key=value list, separated by commas. Ex:
9153         *
9154         * "reset_interval_sec=86400,max_updates_per_interval=1"
9155         *
9156         * The following keys are supported:
9157         *
9158         * <pre>
9159         * reset_interval_sec              (long)
9160         * max_updates_per_interval        (int)
9161         * max_icon_dimension_dp           (int, DP)
9162         * max_icon_dimension_dp_lowram    (int, DP)
9163         * max_shortcuts                   (int)
9164         * icon_quality                    (int, 0-100)
9165         * icon_format                     (String)
9166         * </pre>
9167         *
9168         * <p>
9169         * Type: string
9170         * @hide
9171         * @see com.android.server.pm.ShortcutService.ConfigConstants
9172         */
9173        public static final String SHORTCUT_MANAGER_CONSTANTS = "shortcut_manager_constants";
9174
9175        /**
9176         * Get the key that retrieves a bluetooth headset's priority.
9177         * @hide
9178         */
9179        public static final String getBluetoothHeadsetPriorityKey(String address) {
9180            return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9181        }
9182
9183        /**
9184         * Get the key that retrieves a bluetooth a2dp sink's priority.
9185         * @hide
9186         */
9187        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
9188            return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9189        }
9190
9191        /**
9192         * Get the key that retrieves a bluetooth a2dp src's priority.
9193         * @hide
9194         */
9195        public static final String getBluetoothA2dpSrcPriorityKey(String address) {
9196            return BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9197        }
9198
9199        /**
9200         * Get the key that retrieves a bluetooth Input Device's priority.
9201         * @hide
9202         */
9203        public static final String getBluetoothInputDevicePriorityKey(String address) {
9204            return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9205        }
9206
9207        /**
9208         * Get the key that retrieves a bluetooth pan client priority.
9209         * @hide
9210         */
9211        public static final String getBluetoothPanPriorityKey(String address) {
9212            return BLUETOOTH_PAN_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9213        }
9214
9215        /**
9216         * Get the key that retrieves a bluetooth map priority.
9217         * @hide
9218         */
9219        public static final String getBluetoothMapPriorityKey(String address) {
9220            return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9221        }
9222
9223        /**
9224         * Get the key that retrieves a bluetooth map client priority.
9225         * @hide
9226         */
9227        public static final String getBluetoothMapClientPriorityKey(String address) {
9228            return BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9229        }
9230
9231        /**
9232         * Get the key that retrieves a bluetooth pbap client priority.
9233         * @hide
9234         */
9235        public static final String getBluetoothPbapClientPriorityKey(String address) {
9236            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9237        }
9238
9239        /**
9240         * Get the key that retrieves a bluetooth sap priority.
9241         * @hide
9242         */
9243        public static final String getBluetoothSapPriorityKey(String address) {
9244            return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
9245        }
9246
9247        /**
9248         * Scaling factor for normal window animations. Setting to 0 will
9249         * disable window animations.
9250         */
9251        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
9252
9253        /**
9254         * Scaling factor for activity transition animations. Setting to 0 will
9255         * disable window animations.
9256         */
9257        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
9258
9259        /**
9260         * Scaling factor for Animator-based animations. This affects both the
9261         * start delay and duration of all such animations. Setting to 0 will
9262         * cause animations to end immediately. The default value is 1.
9263         */
9264        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
9265
9266        /**
9267         * Scaling factor for normal window animations. Setting to 0 will
9268         * disable window animations.
9269         *
9270         * @hide
9271         */
9272        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
9273
9274        /**
9275         * If 0, the compatibility mode is off for all applications.
9276         * If 1, older applications run under compatibility mode.
9277         * TODO: remove this settings before code freeze (bug/1907571)
9278         * @hide
9279         */
9280        public static final String COMPATIBILITY_MODE = "compatibility_mode";
9281
9282        /**
9283         * CDMA only settings
9284         * Emergency Tone  0 = Off
9285         *                 1 = Alert
9286         *                 2 = Vibrate
9287         * @hide
9288         */
9289        public static final String EMERGENCY_TONE = "emergency_tone";
9290
9291        /**
9292         * CDMA only settings
9293         * Whether the auto retry is enabled. The value is
9294         * boolean (1 or 0).
9295         * @hide
9296         */
9297        public static final String CALL_AUTO_RETRY = "call_auto_retry";
9298
9299        /**
9300         * A setting that can be read whether the emergency affordance is currently needed.
9301         * The value is a boolean (1 or 0).
9302         * @hide
9303         */
9304        public static final String EMERGENCY_AFFORDANCE_NEEDED = "emergency_affordance_needed";
9305
9306        /**
9307         * See RIL_PreferredNetworkType in ril.h
9308         * @hide
9309         */
9310        public static final String PREFERRED_NETWORK_MODE =
9311                "preferred_network_mode";
9312
9313        /**
9314         * Name of an application package to be debugged.
9315         */
9316        public static final String DEBUG_APP = "debug_app";
9317
9318        /**
9319         * If 1, when launching DEBUG_APP it will wait for the debugger before
9320         * starting user code.  If 0, it will run normally.
9321         */
9322        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
9323
9324        /**
9325         * Control whether the process CPU usage meter should be shown.
9326         *
9327         * @deprecated This functionality is no longer available as of
9328         * {@link android.os.Build.VERSION_CODES#N_MR1}.
9329         */
9330        @Deprecated
9331        public static final String SHOW_PROCESSES = "show_processes";
9332
9333        /**
9334         * If 1 low power mode is enabled.
9335         * @hide
9336         */
9337        public static final String LOW_POWER_MODE = "low_power";
9338
9339        /**
9340         * Battery level [1-99] at which low power mode automatically turns on.
9341         * If 0, it will not automatically turn on.
9342         * @hide
9343         */
9344        public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";
9345
9346         /**
9347         * If not 0, the activity manager will aggressively finish activities and
9348         * processes as soon as they are no longer needed.  If 0, the normal
9349         * extended lifetime is used.
9350         */
9351        public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
9352
9353        /**
9354         * Use Dock audio output for media:
9355         *      0 = disabled
9356         *      1 = enabled
9357         * @hide
9358         */
9359        public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
9360
9361        /**
9362         * The surround sound formats AC3, DTS or IEC61937 are
9363         * available for use if they are detected.
9364         * This is the default mode.
9365         *
9366         * Note that AUTO is equivalent to ALWAYS for Android TVs and other
9367         * devices that have an S/PDIF output. This is because S/PDIF
9368         * is unidirectional and the TV cannot know if a decoder is
9369         * connected. So it assumes they are always available.
9370         * @hide
9371         */
9372         public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;
9373
9374        /**
9375         * AC3, DTS or IEC61937 are NEVER available, even if they
9376         * are detected by the hardware. Those formats will not be
9377         * reported.
9378         *
9379         * An example use case would be an AVR reports that it is capable of
9380         * surround sound decoding but is broken. If NEVER is chosen
9381         * then apps must use PCM output instead of encoded output.
9382         * @hide
9383         */
9384         public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;
9385
9386        /**
9387         * AC3, DTS or IEC61937 are ALWAYS available, even if they
9388         * are not detected by the hardware. Those formats will be
9389         * reported as part of the HDMI output capability. Applications
9390         * are then free to use either PCM or encoded output.
9391         *
9392         * An example use case would be a when TV was connected over
9393         * TOS-link to an AVR. But the TV could not see it because TOS-link
9394         * is unidirectional.
9395         * @hide
9396         */
9397         public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;
9398
9399        /**
9400         * Set to ENCODED_SURROUND_OUTPUT_AUTO,
9401         * ENCODED_SURROUND_OUTPUT_NEVER or
9402         * ENCODED_SURROUND_OUTPUT_ALWAYS
9403         * @hide
9404         */
9405        public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";
9406
9407        /**
9408         * Persisted safe headphone volume management state by AudioService
9409         * @hide
9410         */
9411        public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";
9412
9413        /**
9414         * URL for tzinfo (time zone) updates
9415         * @hide
9416         */
9417        public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";
9418
9419        /**
9420         * URL for tzinfo (time zone) update metadata
9421         * @hide
9422         */
9423        public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";
9424
9425        /**
9426         * URL for selinux (mandatory access control) updates
9427         * @hide
9428         */
9429        public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";
9430
9431        /**
9432         * URL for selinux (mandatory access control) update metadata
9433         * @hide
9434         */
9435        public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";
9436
9437        /**
9438         * URL for sms short code updates
9439         * @hide
9440         */
9441        public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
9442                "sms_short_codes_content_url";
9443
9444        /**
9445         * URL for sms short code update metadata
9446         * @hide
9447         */
9448        public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
9449                "sms_short_codes_metadata_url";
9450
9451        /**
9452         * URL for apn_db updates
9453         * @hide
9454         */
9455        public static final String APN_DB_UPDATE_CONTENT_URL = "apn_db_content_url";
9456
9457        /**
9458         * URL for apn_db update metadata
9459         * @hide
9460         */
9461        public static final String APN_DB_UPDATE_METADATA_URL = "apn_db_metadata_url";
9462
9463        /**
9464         * URL for cert pinlist updates
9465         * @hide
9466         */
9467        public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";
9468
9469        /**
9470         * URL for cert pinlist updates
9471         * @hide
9472         */
9473        public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";
9474
9475        /**
9476         * URL for intent firewall updates
9477         * @hide
9478         */
9479        public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
9480                "intent_firewall_content_url";
9481
9482        /**
9483         * URL for intent firewall update metadata
9484         * @hide
9485         */
9486        public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
9487                "intent_firewall_metadata_url";
9488
9489        /**
9490         * SELinux enforcement status. If 0, permissive; if 1, enforcing.
9491         * @hide
9492         */
9493        public static final String SELINUX_STATUS = "selinux_status";
9494
9495        /**
9496         * Developer setting to force RTL layout.
9497         * @hide
9498         */
9499        public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
9500
9501        /**
9502         * Milliseconds after screen-off after which low battery sounds will be silenced.
9503         *
9504         * If zero, battery sounds will always play.
9505         * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
9506         *
9507         * @hide
9508         */
9509        public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
9510
9511        /**
9512         * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
9513         * the caller is done with this, they should call {@link ContentResolver#delete} to
9514         * clean up any value that they may have written.
9515         *
9516         * @hide
9517         */
9518        public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";
9519
9520        /**
9521         * Defines global runtime overrides to window policy.
9522         *
9523         * See {@link com.android.server.policy.PolicyControl} for value format.
9524         *
9525         * @hide
9526         */
9527        public static final String POLICY_CONTROL = "policy_control";
9528
9529        /**
9530         * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
9531         * or ZEN_MODE_NO_INTERRUPTIONS.
9532         *
9533         * @hide
9534         */
9535        public static final String ZEN_MODE = "zen_mode";
9536
9537        /** @hide */ public static final int ZEN_MODE_OFF = 0;
9538        /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
9539        /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
9540        /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
9541
9542        /** @hide */ public static String zenModeToString(int mode) {
9543            if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
9544            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
9545            if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
9546            return "ZEN_MODE_OFF";
9547        }
9548
9549        /** @hide */ public static boolean isValidZenMode(int value) {
9550            switch (value) {
9551                case Global.ZEN_MODE_OFF:
9552                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
9553                case Global.ZEN_MODE_ALARMS:
9554                case Global.ZEN_MODE_NO_INTERRUPTIONS:
9555                    return true;
9556                default:
9557                    return false;
9558            }
9559        }
9560
9561        /**
9562         * Value of the ringer before entering zen mode.
9563         *
9564         * @hide
9565         */
9566        public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";
9567
9568        /**
9569         * Opaque value, changes when persisted zen mode configuration changes.
9570         *
9571         * @hide
9572         */
9573        public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";
9574
9575        /**
9576         * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
9577         *
9578         * @hide
9579         */
9580        public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
9581                "heads_up_notifications_enabled";
9582
9583        /** @hide */ public static final int HEADS_UP_OFF = 0;
9584        /** @hide */ public static final int HEADS_UP_ON = 1;
9585
9586        /**
9587         * The name of the device
9588         */
9589        public static final String DEVICE_NAME = "device_name";
9590
9591        /**
9592         * Whether the NetworkScoringService has been first initialized.
9593         * <p>
9594         * Type: int (0 for false, 1 for true)
9595         * @hide
9596         */
9597        public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";
9598
9599        /**
9600         * Whether the user wants to be prompted for password to decrypt the device on boot.
9601         * This only matters if the storage is encrypted.
9602         * <p>
9603         * Type: int (0 for false, 1 for true)
9604         * @hide
9605         */
9606        public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
9607
9608        /**
9609         * Whether the Volte is enabled
9610         * <p>
9611         * Type: int (0 for false, 1 for true)
9612         * @hide
9613         */
9614        public static final String ENHANCED_4G_MODE_ENABLED = "volte_vt_enabled";
9615
9616        /**
9617         * Whether VT (Video Telephony over IMS) is enabled
9618         * <p>
9619         * Type: int (0 for false, 1 for true)
9620         *
9621         * @hide
9622         */
9623        public static final String VT_IMS_ENABLED = "vt_ims_enabled";
9624
9625        /**
9626         * Whether WFC is enabled
9627         * <p>
9628         * Type: int (0 for false, 1 for true)
9629         *
9630         * @hide
9631         */
9632        public static final String WFC_IMS_ENABLED = "wfc_ims_enabled";
9633
9634        /**
9635         * WFC mode on home/non-roaming network.
9636         * <p>
9637         * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
9638         *
9639         * @hide
9640         */
9641        public static final String WFC_IMS_MODE = "wfc_ims_mode";
9642
9643        /**
9644         * WFC mode on roaming network.
9645         * <p>
9646         * Type: int - see {@link #WFC_IMS_MODE} for values
9647         *
9648         * @hide
9649         */
9650        public static final String WFC_IMS_ROAMING_MODE = "wfc_ims_roaming_mode";
9651
9652        /**
9653         * Whether WFC roaming is enabled
9654         * <p>
9655         * Type: int (0 for false, 1 for true)
9656         *
9657         * @hide
9658         */
9659        public static final String WFC_IMS_ROAMING_ENABLED = "wfc_ims_roaming_enabled";
9660
9661        /**
9662         * Whether user can enable/disable LTE as a preferred network. A carrier might control
9663         * this via gservices, OMA-DM, carrier app, etc.
9664         * <p>
9665         * Type: int (0 for false, 1 for true)
9666         * @hide
9667         */
9668        public static final String LTE_SERVICE_FORCED = "lte_service_forced";
9669
9670        /**
9671         * Ephemeral app cookie max size in bytes.
9672         * <p>
9673         * Type: int
9674         * @hide
9675         */
9676        public static final String EPHEMERAL_COOKIE_MAX_SIZE_BYTES =
9677                "ephemeral_cookie_max_size_bytes";
9678
9679        /**
9680         * Toggle to enable/disable the entire ephemeral feature. By default, ephemeral is
9681         * enabled. Set to zero to disable.
9682         * <p>
9683         * Type: int (0 for false, 1 for true)
9684         *
9685         * @hide
9686         */
9687        public static final String ENABLE_EPHEMERAL_FEATURE = "enable_ephemeral_feature";
9688
9689        /**
9690         * The duration for caching uninstalled instant apps.
9691         * <p>
9692         * Type: long
9693         * @hide
9694         */
9695        public static final String UNINSTALLED_INSTANT_APP_CACHE_DURATION_MILLIS =
9696                "uninstalled_instant_app_cache_duration_millis";
9697
9698        /**
9699         * Allows switching users when system user is locked.
9700         * <p>
9701         * Type: int
9702         * @hide
9703         */
9704        public static final String ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED =
9705                "allow_user_switching_when_system_user_locked";
9706
9707        /**
9708         * Boot count since the device starts running APK level 24.
9709         * <p>
9710         * Type: int
9711         */
9712        public static final String BOOT_COUNT = "boot_count";
9713
9714        /**
9715         * Whether the safe boot is disallowed.
9716         *
9717         * <p>This setting should have the identical value as the corresponding user restriction.
9718         * The purpose of the setting is to make the restriction available in early boot stages
9719         * before the user restrictions are loaded.
9720         * @hide
9721         */
9722        public static final String SAFE_BOOT_DISALLOWED = "safe_boot_disallowed";
9723
9724        /**
9725         * Whether this device is currently in retail demo mode. If true, device
9726         * usage is severely limited.
9727         * <p>
9728         * Type: int (0 for false, 1 for true)
9729         * @hide
9730         */
9731        public static final String DEVICE_DEMO_MODE = "device_demo_mode";
9732
9733        /**
9734         * Retail mode specific settings. This is encoded as a key=value list, separated by commas.
9735         * Ex: "user_inactivity_timeout_ms=30000,warning_dialog_timeout_ms=10000". The following
9736         * keys are supported:
9737         *
9738         * <pre>
9739         * user_inactivity_timeout_ms  (long)
9740         * warning_dialog_timeout_ms   (long)
9741         * </pre>
9742         * <p>
9743         * Type: string
9744         *
9745         * @hide
9746         */
9747        public static final String RETAIL_DEMO_MODE_CONSTANTS = "retail_demo_mode_constants";
9748
9749        /**
9750         * The reason for the settings database being downgraded. This is only for
9751         * troubleshooting purposes and its value should not be interpreted in any way.
9752         *
9753         * Type: string
9754         *
9755         * @hide
9756         */
9757        public static final String DATABASE_DOWNGRADE_REASON = "database_downgrade_reason";
9758
9759        /**
9760         * The build id of when the settings database was first created (or re-created due it
9761         * being missing).
9762         *
9763         * Type: string
9764         *
9765         * @hide
9766         */
9767        public static final String DATABASE_CREATION_BUILDID = "database_creation_buildid";
9768
9769        /**
9770         * Flag to toggle journal mode WAL on or off for the contacts database. WAL is enabled by
9771         * default. Set to 0 to disable.
9772         *
9773         * @hide
9774         */
9775        public static final String CONTACTS_DATABASE_WAL_ENABLED = "contacts_database_wal_enabled";
9776
9777        /**
9778         * Flag to enable the link to location permissions in location setting. Set to 0 to disable.
9779         *
9780         * @hide
9781         */
9782        public static final String LOCATION_SETTINGS_LINK_TO_PERMISSIONS_ENABLED =
9783                "location_settings_link_to_permissions_enabled";
9784
9785        /**
9786         * Settings to backup. This is here so that it's in the same place as the settings
9787         * keys and easy to update.
9788         *
9789         * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
9790         * and Secure as well.  This is because those tables drive both backup and
9791         * restore, and restore needs to properly whitelist keys that used to live
9792         * in those namespaces.  The keys will only actually be backed up / restored
9793         * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
9794         *
9795         * NOTE: Settings are backed up and restored in the order they appear
9796         *       in this array. If you have one setting depending on another,
9797         *       make sure that they are ordered appropriately.
9798         *
9799         * @hide
9800         */
9801        public static final String[] SETTINGS_TO_BACKUP = {
9802            BUGREPORT_IN_POWER_MENU,
9803            STAY_ON_WHILE_PLUGGED_IN,
9804            AUTO_TIME,
9805            AUTO_TIME_ZONE,
9806            POWER_SOUNDS_ENABLED,
9807            DOCK_SOUNDS_ENABLED,
9808            CHARGING_SOUNDS_ENABLED,
9809            USB_MASS_STORAGE_ENABLED,
9810            NETWORK_RECOMMENDATIONS_ENABLED,
9811            CURATE_SAVED_OPEN_NETWORKS,
9812            WIFI_WAKEUP_ENABLED,
9813            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
9814            USE_OPEN_WIFI_PACKAGE,
9815            WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
9816            EMERGENCY_TONE,
9817            CALL_AUTO_RETRY,
9818            DOCK_AUDIO_MEDIA_ENABLED,
9819            ENCODED_SURROUND_OUTPUT,
9820            LOW_POWER_MODE_TRIGGER_LEVEL
9821        };
9822
9823        private static final ContentProviderHolder sProviderHolder =
9824                new ContentProviderHolder(CONTENT_URI);
9825
9826        // Populated lazily, guarded by class object:
9827        private static final NameValueCache sNameValueCache = new NameValueCache(
9828                    CONTENT_URI,
9829                    CALL_METHOD_GET_GLOBAL,
9830                    CALL_METHOD_PUT_GLOBAL,
9831                    sProviderHolder);
9832
9833        // Certain settings have been moved from global to the per-user secure namespace
9834        private static final HashSet<String> MOVED_TO_SECURE;
9835        static {
9836            MOVED_TO_SECURE = new HashSet<>(1);
9837            MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
9838        }
9839
9840        /** @hide */
9841        public static void getMovedToSecureSettings(Set<String> outKeySet) {
9842            outKeySet.addAll(MOVED_TO_SECURE);
9843        }
9844
9845        /**
9846         * Look up a name in the database.
9847         * @param resolver to access the database with
9848         * @param name to look up in the table
9849         * @return the corresponding value, or null if not present
9850         */
9851        public static String getString(ContentResolver resolver, String name) {
9852            return getStringForUser(resolver, name, UserHandle.myUserId());
9853        }
9854
9855        /** @hide */
9856        public static String getStringForUser(ContentResolver resolver, String name,
9857                int userHandle) {
9858            if (MOVED_TO_SECURE.contains(name)) {
9859                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
9860                        + " to android.provider.Settings.Secure, returning read-only value.");
9861                return Secure.getStringForUser(resolver, name, userHandle);
9862            }
9863            return sNameValueCache.getStringForUser(resolver, name, userHandle);
9864        }
9865
9866        /**
9867         * Store a name/value pair into the database.
9868         * @param resolver to access the database with
9869         * @param name to store
9870         * @param value to associate with the name
9871         * @return true if the value was set, false on database errors
9872         */
9873        public static boolean putString(ContentResolver resolver,
9874                String name, String value) {
9875            return putStringForUser(resolver, name, value, null, false, UserHandle.myUserId());
9876        }
9877
9878        /**
9879         * Store a name/value pair into the database.
9880         * <p>
9881         * The method takes an optional tag to associate with the setting
9882         * which can be used to clear only settings made by your package and
9883         * associated with this tag by passing the tag to {@link
9884         * #resetToDefaults(ContentResolver, String)}. Anyone can override
9885         * the current tag. Also if another package changes the setting
9886         * then the tag will be set to the one specified in the set call
9887         * which can be null. Also any of the settings setters that do not
9888         * take a tag as an argument effectively clears the tag.
9889         * </p><p>
9890         * For example, if you set settings A and B with tags T1 and T2 and
9891         * another app changes setting A (potentially to the same value), it
9892         * can assign to it a tag T3 (note that now the package that changed
9893         * the setting is not yours). Now if you reset your changes for T1 and
9894         * T2 only setting B will be reset and A not (as it was changed by
9895         * another package) but since A did not change you are in the desired
9896         * initial state. Now if the other app changes the value of A (assuming
9897         * you registered an observer in the beginning) you would detect that
9898         * the setting was changed by another app and handle this appropriately
9899         * (ignore, set back to some value, etc).
9900         * </p><p>
9901         * Also the method takes an argument whether to make the value the
9902         * default for this setting. If the system already specified a default
9903         * value, then the one passed in here will <strong>not</strong>
9904         * be set as the default.
9905         * </p>
9906         *
9907         * @param resolver to access the database with.
9908         * @param name to store.
9909         * @param value to associate with the name.
9910         * @param tag to associated with the setting.
9911         * @param makeDefault whether to make the value the default one.
9912         * @return true if the value was set, false on database errors.
9913         *
9914         * @see #resetToDefaults(ContentResolver, String)
9915         *
9916         * @hide
9917         */
9918        @SystemApi
9919        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
9920        public static boolean putString(@NonNull ContentResolver resolver,
9921                @NonNull String name, @Nullable String value, @Nullable String tag,
9922                boolean makeDefault) {
9923            return putStringForUser(resolver, name, value, tag, makeDefault,
9924                    UserHandle.myUserId());
9925        }
9926
9927        /**
9928         * Reset the settings to their defaults. This would reset <strong>only</strong>
9929         * settings set by the caller's package. Think of it of a way to undo your own
9930         * changes to the secure settings. Passing in the optional tag will reset only
9931         * settings changed by your package and associated with this tag.
9932         *
9933         * @param resolver Handle to the content resolver.
9934         * @param tag Optional tag which should be associated with the settings to reset.
9935         *
9936         * @see #putString(ContentResolver, String, String, String, boolean)
9937         *
9938         * @hide
9939         */
9940        @SystemApi
9941        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
9942        public static void resetToDefaults(@NonNull ContentResolver resolver,
9943                @Nullable String tag) {
9944            resetToDefaultsAsUser(resolver, tag, RESET_MODE_PACKAGE_DEFAULTS,
9945                    UserHandle.myUserId());
9946        }
9947
9948        /**
9949         * Reset the settings to their defaults for a given user with a specific mode. The
9950         * optional tag argument is valid only for {@link #RESET_MODE_PACKAGE_DEFAULTS}
9951         * allowing resetting the settings made by a package and associated with the tag.
9952         *
9953         * @param resolver Handle to the content resolver.
9954         * @param tag Optional tag which should be associated with the settings to reset.
9955         * @param mode The reset mode.
9956         * @param userHandle The user for which to reset to defaults.
9957         *
9958         * @see #RESET_MODE_PACKAGE_DEFAULTS
9959         * @see #RESET_MODE_UNTRUSTED_DEFAULTS
9960         * @see #RESET_MODE_UNTRUSTED_CHANGES
9961         * @see #RESET_MODE_TRUSTED_DEFAULTS
9962         *
9963         * @hide
9964         */
9965        public static void resetToDefaultsAsUser(@NonNull ContentResolver resolver,
9966                @Nullable String tag, @ResetMode int mode, @IntRange(from = 0) int userHandle) {
9967            try {
9968                Bundle arg = new Bundle();
9969                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
9970                if (tag != null) {
9971                    arg.putString(CALL_METHOD_TAG_KEY, tag);
9972                }
9973                arg.putInt(CALL_METHOD_RESET_MODE_KEY, mode);
9974                IContentProvider cp = sProviderHolder.getProvider(resolver);
9975                cp.call(resolver.getPackageName(), CALL_METHOD_RESET_GLOBAL, null, arg);
9976            } catch (RemoteException e) {
9977                Log.w(TAG, "Can't reset do defaults for " + CONTENT_URI, e);
9978            }
9979        }
9980
9981        /** @hide */
9982        public static boolean putStringForUser(ContentResolver resolver,
9983                String name, String value, int userHandle) {
9984            return putStringForUser(resolver, name, value, null, false, userHandle);
9985        }
9986
9987        /** @hide */
9988        public static boolean putStringForUser(@NonNull ContentResolver resolver,
9989                @NonNull String name, @Nullable String value, @Nullable String tag,
9990                boolean makeDefault, @UserIdInt int userHandle) {
9991            if (LOCAL_LOGV) {
9992                Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
9993                        + " for " + userHandle);
9994            }
9995            // Global and Secure have the same access policy so we can forward writes
9996            if (MOVED_TO_SECURE.contains(name)) {
9997                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
9998                        + " to android.provider.Settings.Secure, value is unchanged.");
9999                return Secure.putStringForUser(resolver, name, value, tag,
10000                        makeDefault, userHandle);
10001            }
10002            return sNameValueCache.putStringForUser(resolver, name, value, tag,
10003                    makeDefault, userHandle);
10004        }
10005
10006        /**
10007         * Construct the content URI for a particular name/value pair,
10008         * useful for monitoring changes with a ContentObserver.
10009         * @param name to look up in the table
10010         * @return the corresponding content URI, or null if not present
10011         */
10012        public static Uri getUriFor(String name) {
10013            return getUriFor(CONTENT_URI, name);
10014        }
10015
10016        /**
10017         * Convenience function for retrieving a single secure settings value
10018         * as an integer.  Note that internally setting values are always
10019         * stored as strings; this function converts the string to an integer
10020         * for you.  The default value will be returned if the setting is
10021         * not defined or not an integer.
10022         *
10023         * @param cr The ContentResolver to access.
10024         * @param name The name of the setting to retrieve.
10025         * @param def Value to return if the setting is not defined.
10026         *
10027         * @return The setting's current value, or 'def' if it is not defined
10028         * or not a valid integer.
10029         */
10030        public static int getInt(ContentResolver cr, String name, int def) {
10031            String v = getString(cr, name);
10032            try {
10033                return v != null ? Integer.parseInt(v) : def;
10034            } catch (NumberFormatException e) {
10035                return def;
10036            }
10037        }
10038
10039        /**
10040         * Convenience function for retrieving a single secure settings value
10041         * as an integer.  Note that internally setting values are always
10042         * stored as strings; this function converts the string to an integer
10043         * for you.
10044         * <p>
10045         * This version does not take a default value.  If the setting has not
10046         * been set, or the string value is not a number,
10047         * it throws {@link SettingNotFoundException}.
10048         *
10049         * @param cr The ContentResolver to access.
10050         * @param name The name of the setting to retrieve.
10051         *
10052         * @throws SettingNotFoundException Thrown if a setting by the given
10053         * name can't be found or the setting value is not an integer.
10054         *
10055         * @return The setting's current value.
10056         */
10057        public static int getInt(ContentResolver cr, String name)
10058                throws SettingNotFoundException {
10059            String v = getString(cr, name);
10060            try {
10061                return Integer.parseInt(v);
10062            } catch (NumberFormatException e) {
10063                throw new SettingNotFoundException(name);
10064            }
10065        }
10066
10067        /**
10068         * Convenience function for updating a single settings value as an
10069         * integer. This will either create a new entry in the table if the
10070         * given name does not exist, or modify the value of the existing row
10071         * with that name.  Note that internally setting values are always
10072         * stored as strings, so this function converts the given value to a
10073         * string before storing it.
10074         *
10075         * @param cr The ContentResolver to access.
10076         * @param name The name of the setting to modify.
10077         * @param value The new value for the setting.
10078         * @return true if the value was set, false on database errors
10079         */
10080        public static boolean putInt(ContentResolver cr, String name, int value) {
10081            return putString(cr, name, Integer.toString(value));
10082        }
10083
10084        /**
10085         * Convenience function for retrieving a single secure settings value
10086         * as a {@code long}.  Note that internally setting values are always
10087         * stored as strings; this function converts the string to a {@code long}
10088         * for you.  The default value will be returned if the setting is
10089         * not defined or not a {@code long}.
10090         *
10091         * @param cr The ContentResolver to access.
10092         * @param name The name of the setting to retrieve.
10093         * @param def Value to return if the setting is not defined.
10094         *
10095         * @return The setting's current value, or 'def' if it is not defined
10096         * or not a valid {@code long}.
10097         */
10098        public static long getLong(ContentResolver cr, String name, long def) {
10099            String valString = getString(cr, name);
10100            long value;
10101            try {
10102                value = valString != null ? Long.parseLong(valString) : def;
10103            } catch (NumberFormatException e) {
10104                value = def;
10105            }
10106            return value;
10107        }
10108
10109        /**
10110         * Convenience function for retrieving a single secure settings value
10111         * as a {@code long}.  Note that internally setting values are always
10112         * stored as strings; this function converts the string to a {@code long}
10113         * for you.
10114         * <p>
10115         * This version does not take a default value.  If the setting has not
10116         * been set, or the string value is not a number,
10117         * it throws {@link SettingNotFoundException}.
10118         *
10119         * @param cr The ContentResolver to access.
10120         * @param name The name of the setting to retrieve.
10121         *
10122         * @return The setting's current value.
10123         * @throws SettingNotFoundException Thrown if a setting by the given
10124         * name can't be found or the setting value is not an integer.
10125         */
10126        public static long getLong(ContentResolver cr, String name)
10127                throws SettingNotFoundException {
10128            String valString = getString(cr, name);
10129            try {
10130                return Long.parseLong(valString);
10131            } catch (NumberFormatException e) {
10132                throw new SettingNotFoundException(name);
10133            }
10134        }
10135
10136        /**
10137         * Convenience function for updating a secure settings value as a long
10138         * integer. This will either create a new entry in the table if the
10139         * given name does not exist, or modify the value of the existing row
10140         * with that name.  Note that internally setting values are always
10141         * stored as strings, so this function converts the given value to a
10142         * string before storing it.
10143         *
10144         * @param cr The ContentResolver to access.
10145         * @param name The name of the setting to modify.
10146         * @param value The new value for the setting.
10147         * @return true if the value was set, false on database errors
10148         */
10149        public static boolean putLong(ContentResolver cr, String name, long value) {
10150            return putString(cr, name, Long.toString(value));
10151        }
10152
10153        /**
10154         * Convenience function for retrieving a single secure settings value
10155         * as a floating point number.  Note that internally setting values are
10156         * always stored as strings; this function converts the string to an
10157         * float for you. The default value will be returned if the setting
10158         * is not defined or not a valid float.
10159         *
10160         * @param cr The ContentResolver to access.
10161         * @param name The name of the setting to retrieve.
10162         * @param def Value to return if the setting is not defined.
10163         *
10164         * @return The setting's current value, or 'def' if it is not defined
10165         * or not a valid float.
10166         */
10167        public static float getFloat(ContentResolver cr, String name, float def) {
10168            String v = getString(cr, name);
10169            try {
10170                return v != null ? Float.parseFloat(v) : def;
10171            } catch (NumberFormatException e) {
10172                return def;
10173            }
10174        }
10175
10176        /**
10177         * Convenience function for retrieving a single secure settings value
10178         * as a float.  Note that internally setting values are always
10179         * stored as strings; this function converts the string to a float
10180         * for you.
10181         * <p>
10182         * This version does not take a default value.  If the setting has not
10183         * been set, or the string value is not a number,
10184         * it throws {@link SettingNotFoundException}.
10185         *
10186         * @param cr The ContentResolver to access.
10187         * @param name The name of the setting to retrieve.
10188         *
10189         * @throws SettingNotFoundException Thrown if a setting by the given
10190         * name can't be found or the setting value is not a float.
10191         *
10192         * @return The setting's current value.
10193         */
10194        public static float getFloat(ContentResolver cr, String name)
10195                throws SettingNotFoundException {
10196            String v = getString(cr, name);
10197            if (v == null) {
10198                throw new SettingNotFoundException(name);
10199            }
10200            try {
10201                return Float.parseFloat(v);
10202            } catch (NumberFormatException e) {
10203                throw new SettingNotFoundException(name);
10204            }
10205        }
10206
10207        /**
10208         * Convenience function for updating a single settings value as a
10209         * floating point number. This will either create a new entry in the
10210         * table if the given name does not exist, or modify the value of the
10211         * existing row with that name.  Note that internally setting values
10212         * are always stored as strings, so this function converts the given
10213         * value to a string before storing it.
10214         *
10215         * @param cr The ContentResolver to access.
10216         * @param name The name of the setting to modify.
10217         * @param value The new value for the setting.
10218         * @return true if the value was set, false on database errors
10219         */
10220        public static boolean putFloat(ContentResolver cr, String name, float value) {
10221            return putString(cr, name, Float.toString(value));
10222        }
10223
10224        /**
10225          * Subscription to be used for voice call on a multi sim device. The supported values
10226          * are 0 = SUB1, 1 = SUB2 and etc.
10227          * @hide
10228          */
10229        public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
10230
10231        /**
10232          * Used to provide option to user to select subscription during dial.
10233          * The supported values are 0 = disable or 1 = enable prompt.
10234          * @hide
10235          */
10236        public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
10237
10238        /**
10239          * Subscription to be used for data call on a multi sim device. The supported values
10240          * are 0 = SUB1, 1 = SUB2 and etc.
10241          * @hide
10242          */
10243        public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
10244
10245        /**
10246          * Subscription to be used for SMS on a multi sim device. The supported values
10247          * are 0 = SUB1, 1 = SUB2 and etc.
10248          * @hide
10249          */
10250        public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
10251
10252       /**
10253          * Used to provide option to user to select subscription during send SMS.
10254          * The value 1 - enable, 0 - disable
10255          * @hide
10256          */
10257        public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";
10258
10259
10260
10261        /** User preferred subscriptions setting.
10262          * This holds the details of the user selected subscription from the card and
10263          * the activation status. Each settings string have the coma separated values
10264          * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
10265          * @hide
10266         */
10267        public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
10268                "user_preferred_sub2","user_preferred_sub3"};
10269
10270        /**
10271         * Whether to enable new contacts aggregator or not.
10272         * The value 1 - enable, 0 - disable
10273         * @hide
10274         */
10275        public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";
10276
10277        /**
10278         * Whether to enable contacts metadata syncing or not
10279         * The value 1 - enable, 0 - disable
10280         *
10281         * @removed
10282         */
10283        @Deprecated
10284        public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";
10285
10286        /**
10287         * Whether to enable contacts metadata syncing or not
10288         * The value 1 - enable, 0 - disable
10289         */
10290        public static final String CONTACT_METADATA_SYNC_ENABLED = "contact_metadata_sync_enabled";
10291
10292        /**
10293         * Whether to enable cellular on boot.
10294         * The value 1 - enable, 0 - disable
10295         * @hide
10296         */
10297        public static final String ENABLE_CELLULAR_ON_BOOT = "enable_cellular_on_boot";
10298
10299        /**
10300         * The maximum allowed notification enqueue rate in Hertz.
10301         *
10302         * Should be a float, and includes both posts and updates.
10303         * @hide
10304         */
10305        public static final String MAX_NOTIFICATION_ENQUEUE_RATE = "max_notification_enqueue_rate";
10306
10307        /**
10308         * Whether cell is enabled/disabled
10309         * @hide
10310         */
10311        public static final String CELL_ON = "cell_on";
10312
10313        /**
10314         * Global settings which can be accessed by instant apps.
10315         * @hide
10316         */
10317        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
10318        static {
10319            INSTANT_APP_SETTINGS.add(WAIT_FOR_DEBUGGER);
10320            INSTANT_APP_SETTINGS.add(DEVICE_PROVISIONED);
10321            INSTANT_APP_SETTINGS.add(DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES);
10322            INSTANT_APP_SETTINGS.add(DEVELOPMENT_FORCE_RTL);
10323            INSTANT_APP_SETTINGS.add(EPHEMERAL_COOKIE_MAX_SIZE_BYTES);
10324            INSTANT_APP_SETTINGS.add(AIRPLANE_MODE_ON);
10325        }
10326
10327        /**
10328         * Whether to show the high temperature warning notification.
10329         * @hide
10330         */
10331        public static final String SHOW_TEMPERATURE_WARNING = "show_temperature_warning";
10332
10333        /**
10334         * Temperature at which the high temperature warning notification should be shown.
10335         * @hide
10336         */
10337        public static final String WARNING_TEMPERATURE = "warning_temperature";
10338
10339        /**
10340         * Whether the diskstats logging task is enabled/disabled.
10341         * @hide
10342         */
10343        public static final String ENABLE_DISKSTATS_LOGGING = "enable_diskstats_logging";
10344
10345        /**
10346         * Whether the cache quota calculation task is enabled/disabled.
10347         * @hide
10348         */
10349        public static final String ENABLE_CACHE_QUOTA_CALCULATION =
10350                "enable_cache_quota_calculation";
10351    }
10352
10353    /**
10354     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
10355     * Intent URL, allowing it to be either a web page or a particular
10356     * application activity.
10357     *
10358     * @hide
10359     */
10360    public static final class Bookmarks implements BaseColumns
10361    {
10362        private static final String TAG = "Bookmarks";
10363
10364        /**
10365         * The content:// style URL for this table
10366         */
10367        public static final Uri CONTENT_URI =
10368            Uri.parse("content://" + AUTHORITY + "/bookmarks");
10369
10370        /**
10371         * The row ID.
10372         * <p>Type: INTEGER</p>
10373         */
10374        public static final String ID = "_id";
10375
10376        /**
10377         * Descriptive name of the bookmark that can be displayed to the user.
10378         * If this is empty, the title should be resolved at display time (use
10379         * {@link #getTitle(Context, Cursor)} any time you want to display the
10380         * title of a bookmark.)
10381         * <P>
10382         * Type: TEXT
10383         * </P>
10384         */
10385        public static final String TITLE = "title";
10386
10387        /**
10388         * Arbitrary string (displayed to the user) that allows bookmarks to be
10389         * organized into categories.  There are some special names for
10390         * standard folders, which all start with '@'.  The label displayed for
10391         * the folder changes with the locale (via {@link #getLabelForFolder}) but
10392         * the folder name does not change so you can consistently query for
10393         * the folder regardless of the current locale.
10394         *
10395         * <P>Type: TEXT</P>
10396         *
10397         */
10398        public static final String FOLDER = "folder";
10399
10400        /**
10401         * The Intent URL of the bookmark, describing what it points to.  This
10402         * value is given to {@link android.content.Intent#getIntent} to create
10403         * an Intent that can be launched.
10404         * <P>Type: TEXT</P>
10405         */
10406        public static final String INTENT = "intent";
10407
10408        /**
10409         * Optional shortcut character associated with this bookmark.
10410         * <P>Type: INTEGER</P>
10411         */
10412        public static final String SHORTCUT = "shortcut";
10413
10414        /**
10415         * The order in which the bookmark should be displayed
10416         * <P>Type: INTEGER</P>
10417         */
10418        public static final String ORDERING = "ordering";
10419
10420        private static final String[] sIntentProjection = { INTENT };
10421        private static final String[] sShortcutProjection = { ID, SHORTCUT };
10422        private static final String sShortcutSelection = SHORTCUT + "=?";
10423
10424        /**
10425         * Convenience function to retrieve the bookmarked Intent for a
10426         * particular shortcut key.
10427         *
10428         * @param cr The ContentResolver to query.
10429         * @param shortcut The shortcut key.
10430         *
10431         * @return Intent The bookmarked URL, or null if there is no bookmark
10432         *         matching the given shortcut.
10433         */
10434        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
10435        {
10436            Intent intent = null;
10437
10438            Cursor c = cr.query(CONTENT_URI,
10439                    sIntentProjection, sShortcutSelection,
10440                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
10441            // Keep trying until we find a valid shortcut
10442            try {
10443                while (intent == null && c.moveToNext()) {
10444                    try {
10445                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
10446                        intent = Intent.parseUri(intentURI, 0);
10447                    } catch (java.net.URISyntaxException e) {
10448                        // The stored URL is bad...  ignore it.
10449                    } catch (IllegalArgumentException e) {
10450                        // Column not found
10451                        Log.w(TAG, "Intent column not found", e);
10452                    }
10453                }
10454            } finally {
10455                if (c != null) c.close();
10456            }
10457
10458            return intent;
10459        }
10460
10461        /**
10462         * Add a new bookmark to the system.
10463         *
10464         * @param cr The ContentResolver to query.
10465         * @param intent The desired target of the bookmark.
10466         * @param title Bookmark title that is shown to the user; null if none
10467         *            or it should be resolved to the intent's title.
10468         * @param folder Folder in which to place the bookmark; null if none.
10469         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
10470         *            this is non-zero and there is an existing bookmark entry
10471         *            with this same shortcut, then that existing shortcut is
10472         *            cleared (the bookmark is not removed).
10473         * @return The unique content URL for the new bookmark entry.
10474         */
10475        public static Uri add(ContentResolver cr,
10476                                           Intent intent,
10477                                           String title,
10478                                           String folder,
10479                                           char shortcut,
10480                                           int ordering)
10481        {
10482            // If a shortcut is supplied, and it is already defined for
10483            // another bookmark, then remove the old definition.
10484            if (shortcut != 0) {
10485                cr.delete(CONTENT_URI, sShortcutSelection,
10486                        new String[] { String.valueOf((int) shortcut) });
10487            }
10488
10489            ContentValues values = new ContentValues();
10490            if (title != null) values.put(TITLE, title);
10491            if (folder != null) values.put(FOLDER, folder);
10492            values.put(INTENT, intent.toUri(0));
10493            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
10494            values.put(ORDERING, ordering);
10495            return cr.insert(CONTENT_URI, values);
10496        }
10497
10498        /**
10499         * Return the folder name as it should be displayed to the user.  This
10500         * takes care of localizing special folders.
10501         *
10502         * @param r Resources object for current locale; only need access to
10503         *          system resources.
10504         * @param folder The value found in the {@link #FOLDER} column.
10505         *
10506         * @return CharSequence The label for this folder that should be shown
10507         *         to the user.
10508         */
10509        public static CharSequence getLabelForFolder(Resources r, String folder) {
10510            return folder;
10511        }
10512
10513        /**
10514         * Return the title as it should be displayed to the user. This takes
10515         * care of localizing bookmarks that point to activities.
10516         *
10517         * @param context A context.
10518         * @param cursor A cursor pointing to the row whose title should be
10519         *        returned. The cursor must contain at least the {@link #TITLE}
10520         *        and {@link #INTENT} columns.
10521         * @return A title that is localized and can be displayed to the user,
10522         *         or the empty string if one could not be found.
10523         */
10524        public static CharSequence getTitle(Context context, Cursor cursor) {
10525            int titleColumn = cursor.getColumnIndex(TITLE);
10526            int intentColumn = cursor.getColumnIndex(INTENT);
10527            if (titleColumn == -1 || intentColumn == -1) {
10528                throw new IllegalArgumentException(
10529                        "The cursor must contain the TITLE and INTENT columns.");
10530            }
10531
10532            String title = cursor.getString(titleColumn);
10533            if (!TextUtils.isEmpty(title)) {
10534                return title;
10535            }
10536
10537            String intentUri = cursor.getString(intentColumn);
10538            if (TextUtils.isEmpty(intentUri)) {
10539                return "";
10540            }
10541
10542            Intent intent;
10543            try {
10544                intent = Intent.parseUri(intentUri, 0);
10545            } catch (URISyntaxException e) {
10546                return "";
10547            }
10548
10549            PackageManager packageManager = context.getPackageManager();
10550            ResolveInfo info = packageManager.resolveActivity(intent, 0);
10551            return info != null ? info.loadLabel(packageManager) : "";
10552        }
10553    }
10554
10555    /**
10556     * Returns the device ID that we should use when connecting to the mobile gtalk server.
10557     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
10558     * from the GoogleLoginService.
10559     *
10560     * @param androidId The Android ID for this device.
10561     * @return The device ID that should be used when connecting to the mobile gtalk server.
10562     * @hide
10563     */
10564    public static String getGTalkDeviceId(long androidId) {
10565        return "android-" + Long.toHexString(androidId);
10566    }
10567
10568    private static final String[] PM_WRITE_SETTINGS = {
10569        android.Manifest.permission.WRITE_SETTINGS
10570    };
10571    private static final String[] PM_CHANGE_NETWORK_STATE = {
10572        android.Manifest.permission.CHANGE_NETWORK_STATE,
10573        android.Manifest.permission.WRITE_SETTINGS
10574    };
10575    private static final String[] PM_SYSTEM_ALERT_WINDOW = {
10576        android.Manifest.permission.SYSTEM_ALERT_WINDOW
10577    };
10578
10579    /**
10580     * Performs a strict and comprehensive check of whether a calling package is allowed to
10581     * write/modify system settings, as the condition differs for pre-M, M+, and
10582     * privileged/preinstalled apps. If the provided uid does not match the
10583     * callingPackage, a negative result will be returned.
10584     * @hide
10585     */
10586    public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
10587            String callingPackage, boolean throwException) {
10588        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
10589                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
10590                PM_WRITE_SETTINGS, false);
10591    }
10592
10593    /**
10594     * Performs a strict and comprehensive check of whether a calling package is allowed to
10595     * write/modify system settings, as the condition differs for pre-M, M+, and
10596     * privileged/preinstalled apps. If the provided uid does not match the
10597     * callingPackage, a negative result will be returned. The caller is expected to have
10598     * the WRITE_SETTINGS permission declared.
10599     *
10600     * Note: if the check is successful, the operation of this app will be updated to the
10601     * current time.
10602     * @hide
10603     */
10604    public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
10605            String callingPackage, boolean throwException) {
10606        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
10607                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
10608                PM_WRITE_SETTINGS, true);
10609    }
10610
10611    /**
10612     * Performs a strict and comprehensive check of whether a calling package is allowed to
10613     * change the state of network, as the condition differs for pre-M, M+, and
10614     * privileged/preinstalled apps. The caller is expected to have either the
10615     * CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
10616     * permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
10617     * can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
10618     * permission and cannot be revoked. See http://b/23597341
10619     *
10620     * Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
10621     * of this app will be updated to the current time.
10622     * @hide
10623     */
10624    public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
10625            String callingPackage, boolean throwException) {
10626        if (context.checkCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE)
10627                == PackageManager.PERMISSION_GRANTED) {
10628            return true;
10629        }
10630        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
10631                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
10632                PM_CHANGE_NETWORK_STATE, true);
10633    }
10634
10635    /**
10636     * Performs a strict and comprehensive check of whether a calling package is allowed to
10637     * draw on top of other apps, as the conditions differs for pre-M, M+, and
10638     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
10639     * a negative result will be returned.
10640     * @hide
10641     */
10642    public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
10643            String callingPackage, boolean throwException) {
10644        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
10645                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
10646                PM_SYSTEM_ALERT_WINDOW, false);
10647    }
10648
10649    /**
10650     * Performs a strict and comprehensive check of whether a calling package is allowed to
10651     * draw on top of other apps, as the conditions differs for pre-M, M+, and
10652     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
10653     * a negative result will be returned.
10654     *
10655     * Note: if the check is successful, the operation of this app will be updated to the
10656     * current time.
10657     * @hide
10658     */
10659    public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
10660            callingPackage, boolean throwException) {
10661        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
10662                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
10663                PM_SYSTEM_ALERT_WINDOW, true);
10664    }
10665
10666    /**
10667     * Helper method to perform a general and comprehensive check of whether an operation that is
10668     * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
10669     * OP_WRITE_SETTINGS
10670     * @hide
10671     */
10672    public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
10673            int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
10674            permissions, boolean makeNote) {
10675        if (callingPackage == null) {
10676            return false;
10677        }
10678
10679        AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
10680        int mode = AppOpsManager.MODE_DEFAULT;
10681        if (makeNote) {
10682            mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
10683        } else {
10684            mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
10685        }
10686
10687        switch (mode) {
10688            case AppOpsManager.MODE_ALLOWED:
10689                return true;
10690
10691            case AppOpsManager.MODE_DEFAULT:
10692                // this is the default operating mode after an app's installation
10693                // In this case we will check all associated static permission to see
10694                // if it is granted during install time.
10695                for (String permission : permissions) {
10696                    if (context.checkCallingOrSelfPermission(permission) == PackageManager
10697                            .PERMISSION_GRANTED) {
10698                        // if either of the permissions are granted, we will allow it
10699                        return true;
10700                    }
10701                }
10702
10703            default:
10704                // this is for all other cases trickled down here...
10705                if (!throwException) {
10706                    return false;
10707                }
10708        }
10709
10710        // prepare string to throw SecurityException
10711        StringBuilder exceptionMessage = new StringBuilder();
10712        exceptionMessage.append(callingPackage);
10713        exceptionMessage.append(" was not granted ");
10714        if (permissions.length > 1) {
10715            exceptionMessage.append(" either of these permissions: ");
10716        } else {
10717            exceptionMessage.append(" this permission: ");
10718        }
10719        for (int i = 0; i < permissions.length; i++) {
10720            exceptionMessage.append(permissions[i]);
10721            exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
10722        }
10723
10724        throw new SecurityException(exceptionMessage.toString());
10725    }
10726
10727    /**
10728     * Retrieves a correponding package name for a given uid. It will query all
10729     * packages that are associated with the given uid, but it will return only
10730     * the zeroth result.
10731     * Note: If package could not be found, a null is returned.
10732     * @hide
10733     */
10734    public static String getPackageNameForUid(Context context, int uid) {
10735        String[] packages = context.getPackageManager().getPackagesForUid(uid);
10736        if (packages == null) {
10737            return null;
10738        }
10739        return packages[0];
10740    }
10741}
10742