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.annotation.NonNull;
20import android.annotation.SdkConstant;
21import android.annotation.SdkConstant.SdkConstantType;
22import android.annotation.SystemApi;
23import android.annotation.TestApi;
24import android.app.ActivityThread;
25import android.app.AppOpsManager;
26import android.app.Application;
27import android.app.SearchManager;
28import android.app.WallpaperManager;
29import android.content.ComponentName;
30import android.content.ContentResolver;
31import android.content.ContentValues;
32import android.content.Context;
33import android.content.IContentProvider;
34import android.content.Intent;
35import android.content.pm.ActivityInfo;
36import android.content.pm.PackageManager;
37import android.content.pm.ResolveInfo;
38import android.content.res.Configuration;
39import android.content.res.Resources;
40import android.database.Cursor;
41import android.database.SQLException;
42import android.location.LocationManager;
43import android.net.ConnectivityManager;
44import android.net.Uri;
45import android.net.wifi.WifiManager;
46import android.os.BatteryManager;
47import android.os.Bundle;
48import android.os.DropBoxManager;
49import android.os.IBinder;
50import android.os.LocaleList;
51import android.os.Process;
52import android.os.RemoteException;
53import android.os.ServiceManager;
54import android.os.UserHandle;
55import android.os.Build.VERSION_CODES;
56import android.speech.tts.TextToSpeech;
57import android.text.TextUtils;
58import android.util.AndroidException;
59import android.util.ArrayMap;
60import android.util.ArraySet;
61import android.util.Log;
62import android.util.MemoryIntArray;
63
64import com.android.internal.annotations.GuardedBy;
65import com.android.internal.util.ArrayUtils;
66import com.android.internal.widget.ILockSettings;
67
68import java.io.IOException;
69import java.net.URISyntaxException;
70import java.text.SimpleDateFormat;
71import java.util.HashMap;
72import java.util.HashSet;
73import java.util.Locale;
74import java.util.Map;
75import java.util.Set;
76
77/**
78 * The Settings provider contains global system-level device preferences.
79 */
80public final class Settings {
81
82    // Intent actions for Settings
83
84    /**
85     * Activity Action: Show system settings.
86     * <p>
87     * Input: Nothing.
88     * <p>
89     * Output: Nothing.
90     */
91    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
92    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
93
94    /**
95     * Activity Action: Show settings to allow configuration of APNs.
96     * <p>
97     * Input: Nothing.
98     * <p>
99     * Output: Nothing.
100     */
101    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
102    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
103
104    /**
105     * Activity Action: Show settings to allow configuration of current location
106     * sources.
107     * <p>
108     * In some cases, a matching Activity may not exist, so ensure you
109     * safeguard against this.
110     * <p>
111     * Input: Nothing.
112     * <p>
113     * Output: Nothing.
114     */
115    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
116    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
117            "android.settings.LOCATION_SOURCE_SETTINGS";
118
119    /**
120     * Activity Action: Show settings to allow configuration of users.
121     * <p>
122     * In some cases, a matching Activity may not exist, so ensure you
123     * safeguard against this.
124     * <p>
125     * Input: Nothing.
126     * <p>
127     * Output: Nothing.
128     * @hide
129     */
130    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
131    public static final String ACTION_USER_SETTINGS =
132            "android.settings.USER_SETTINGS";
133
134    /**
135     * Activity Action: Show settings to allow configuration of wireless controls
136     * such as Wi-Fi, Bluetooth and Mobile networks.
137     * <p>
138     * In some cases, a matching Activity may not exist, so ensure you
139     * safeguard against this.
140     * <p>
141     * Input: Nothing.
142     * <p>
143     * Output: Nothing.
144     */
145    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
146    public static final String ACTION_WIRELESS_SETTINGS =
147            "android.settings.WIRELESS_SETTINGS";
148
149    /**
150     * Activity Action: Show tether provisioning activity.
151     *
152     * <p>
153     * In some cases, a matching Activity may not exist, so ensure you
154     * safeguard against this.
155     * <p>
156     * Input: {@link ConnectivityManager.EXTRA_TETHER_TYPE} should be included to specify which type
157     * of tethering should be checked. {@link ConnectivityManager.EXTRA_PROVISION_CALLBACK} should
158     * contain a {@link ResultReceiver} which will be called back with a tether result code.
159     * <p>
160     * Output: The result of the provisioning check.
161     * {@link ConnectivityManager.TETHER_ERROR_NO_ERROR} if successful,
162     * {@link ConnectivityManager.TETHER_ERROR_PROVISION_FAILED} for failure.
163     *
164     * @hide
165     */
166    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
167    public static final String ACTION_TETHER_PROVISIONING =
168            "android.settings.TETHER_PROVISIONING_UI";
169
170    /**
171     * Activity Action: Show settings to allow entering/exiting airplane mode.
172     * <p>
173     * In some cases, a matching Activity may not exist, so ensure you
174     * safeguard against this.
175     * <p>
176     * Input: Nothing.
177     * <p>
178     * Output: Nothing.
179     */
180    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
181    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
182            "android.settings.AIRPLANE_MODE_SETTINGS";
183
184    /**
185     * Activity Action: Modify Airplane mode settings using a voice command.
186     * <p>
187     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
188     * <p>
189     * This intent MUST be started using
190     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
191     * startVoiceActivity}.
192     * <p>
193     * Note: The activity implementing this intent MUST verify that
194     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
195     * modifying the setting.
196     * <p>
197     * Input: To tell which state airplane mode should be set to, add the
198     * {@link #EXTRA_AIRPLANE_MODE_ENABLED} extra to this Intent with the state specified.
199     * If the extra is not included, no changes will be made.
200     * <p>
201     * Output: Nothing.
202     */
203    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
204    public static final String ACTION_VOICE_CONTROL_AIRPLANE_MODE =
205            "android.settings.VOICE_CONTROL_AIRPLANE_MODE";
206
207    /**
208     * Activity Action: Show settings for accessibility modules.
209     * <p>
210     * In some cases, a matching Activity may not exist, so ensure you
211     * safeguard against this.
212     * <p>
213     * Input: Nothing.
214     * <p>
215     * Output: Nothing.
216     */
217    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
218    public static final String ACTION_ACCESSIBILITY_SETTINGS =
219            "android.settings.ACCESSIBILITY_SETTINGS";
220
221    /**
222     * Activity Action: Show settings to control access to usage information.
223     * <p>
224     * In some cases, a matching Activity may not exist, so ensure you
225     * safeguard against this.
226     * <p>
227     * Input: Nothing.
228     * <p>
229     * Output: Nothing.
230     */
231    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
232    public static final String ACTION_USAGE_ACCESS_SETTINGS =
233            "android.settings.USAGE_ACCESS_SETTINGS";
234
235    /**
236     * Activity Category: Show application settings related to usage access.
237     * <p>
238     * An activity that provides a user interface for adjusting usage access related
239     * preferences for its containing application. Optional but recommended for apps that
240     * use {@link android.Manifest.permission#PACKAGE_USAGE_STATS}.
241     * <p>
242     * The activity may define meta-data to describe what usage access is
243     * used for within their app with {@link #METADATA_USAGE_ACCESS_REASON}, which
244     * will be displayed in Settings.
245     * <p>
246     * Input: Nothing.
247     * <p>
248     * Output: Nothing.
249     */
250    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
251    public static final String INTENT_CATEGORY_USAGE_ACCESS_CONFIG =
252            "android.intent.category.USAGE_ACCESS_CONFIG";
253
254    /**
255     * Metadata key: Reason for needing usage access.
256     * <p>
257     * A key for metadata attached to an activity that receives action
258     * {@link #INTENT_CATEGORY_USAGE_ACCESS_CONFIG}, shown to the
259     * user as description of how the app uses usage access.
260     * <p>
261     */
262    public static final String METADATA_USAGE_ACCESS_REASON =
263            "android.settings.metadata.USAGE_ACCESS_REASON";
264
265    /**
266     * Activity Action: Show settings to allow configuration of security and
267     * location privacy.
268     * <p>
269     * In some cases, a matching Activity may not exist, so ensure you
270     * safeguard against this.
271     * <p>
272     * Input: Nothing.
273     * <p>
274     * Output: Nothing.
275     */
276    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
277    public static final String ACTION_SECURITY_SETTINGS =
278            "android.settings.SECURITY_SETTINGS";
279
280    /**
281     * Activity Action: Show trusted credentials settings, opening to the user tab,
282     * to allow management of installed credentials.
283     * <p>
284     * In some cases, a matching Activity may not exist, so ensure you
285     * safeguard against this.
286     * <p>
287     * Input: Nothing.
288     * <p>
289     * Output: Nothing.
290     * @hide
291     */
292    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
293    public static final String ACTION_TRUSTED_CREDENTIALS_USER =
294            "com.android.settings.TRUSTED_CREDENTIALS_USER";
295
296    /**
297     * Activity Action: Show dialog explaining that an installed CA cert may enable
298     * monitoring of encrypted network traffic.
299     * <p>
300     * In some cases, a matching Activity may not exist, so ensure you
301     * safeguard against this. Add {@link #EXTRA_NUMBER_OF_CERTIFICATES} extra to indicate the
302     * number of certificates.
303     * <p>
304     * Input: Nothing.
305     * <p>
306     * Output: Nothing.
307     * @hide
308     */
309    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
310    public static final String ACTION_MONITORING_CERT_INFO =
311            "com.android.settings.MONITORING_CERT_INFO";
312
313    /**
314     * Activity Action: Show settings to allow configuration of privacy options.
315     * <p>
316     * In some cases, a matching Activity may not exist, so ensure you
317     * safeguard against this.
318     * <p>
319     * Input: Nothing.
320     * <p>
321     * Output: Nothing.
322     */
323    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
324    public static final String ACTION_PRIVACY_SETTINGS =
325            "android.settings.PRIVACY_SETTINGS";
326
327    /**
328     * Activity Action: Show settings to allow configuration of VPN.
329     * <p>
330     * In some cases, a matching Activity may not exist, so ensure you
331     * safeguard against this.
332     * <p>
333     * Input: Nothing.
334     * <p>
335     * Output: Nothing.
336     */
337    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
338    public static final String ACTION_VPN_SETTINGS =
339            "android.settings.VPN_SETTINGS";
340
341    /**
342     * Activity Action: Show settings to allow configuration of Wi-Fi.
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     */
352    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
353    public static final String ACTION_WIFI_SETTINGS =
354            "android.settings.WIFI_SETTINGS";
355
356    /**
357     * Activity Action: Show settings to allow configuration of a static IP
358     * address for Wi-Fi.
359     * <p>
360     * In some cases, a matching Activity may not exist, so ensure you safeguard
361     * against this.
362     * <p>
363     * Input: Nothing.
364     * <p>
365     * Output: Nothing.
366     */
367    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
368    public static final String ACTION_WIFI_IP_SETTINGS =
369            "android.settings.WIFI_IP_SETTINGS";
370
371    /**
372     * Activity Action: Show settings to allow configuration of Bluetooth.
373     * <p>
374     * In some cases, a matching Activity may not exist, so ensure you
375     * safeguard against this.
376     * <p>
377     * Input: Nothing.
378     * <p>
379     * Output: Nothing.
380     */
381    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
382    public static final String ACTION_BLUETOOTH_SETTINGS =
383            "android.settings.BLUETOOTH_SETTINGS";
384
385    /**
386     * Activity Action: Show settings to allow configuration of cast endpoints.
387     * <p>
388     * In some cases, a matching Activity may not exist, so ensure you
389     * safeguard against this.
390     * <p>
391     * Input: Nothing.
392     * <p>
393     * Output: Nothing.
394     */
395    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
396    public static final String ACTION_CAST_SETTINGS =
397            "android.settings.CAST_SETTINGS";
398
399    /**
400     * Activity Action: Show settings to allow configuration of date and time.
401     * <p>
402     * In some cases, a matching Activity may not exist, so ensure you
403     * safeguard against this.
404     * <p>
405     * Input: Nothing.
406     * <p>
407     * Output: Nothing.
408     */
409    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
410    public static final String ACTION_DATE_SETTINGS =
411            "android.settings.DATE_SETTINGS";
412
413    /**
414     * Activity Action: Show settings to allow configuration of sound and volume.
415     * <p>
416     * In some cases, a matching Activity may not exist, so ensure you
417     * safeguard against this.
418     * <p>
419     * Input: Nothing.
420     * <p>
421     * Output: Nothing.
422     */
423    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
424    public static final String ACTION_SOUND_SETTINGS =
425            "android.settings.SOUND_SETTINGS";
426
427    /**
428     * Activity Action: Show settings to allow configuration of display.
429     * <p>
430     * In some cases, a matching Activity may not exist, so ensure you
431     * safeguard against this.
432     * <p>
433     * Input: Nothing.
434     * <p>
435     * Output: Nothing.
436     */
437    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
438    public static final String ACTION_DISPLAY_SETTINGS =
439            "android.settings.DISPLAY_SETTINGS";
440
441    /**
442     * Activity Action: Show settings to allow configuration of Night display.
443     * <p>
444     * In some cases, a matching Activity may not exist, so ensure you
445     * safeguard against this.
446     * <p>
447     * Input: Nothing.
448     * <p>
449     * Output: Nothing.
450     *
451     * @hide
452     */
453    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
454    public static final String ACTION_NIGHT_DISPLAY_SETTINGS =
455            "android.settings.NIGHT_DISPLAY_SETTINGS";
456
457    /**
458     * Activity Action: Show settings to allow configuration of locale.
459     * <p>
460     * In some cases, a matching Activity may not exist, so ensure you
461     * safeguard against this.
462     * <p>
463     * Input: Nothing.
464     * <p>
465     * Output: Nothing.
466     */
467    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
468    public static final String ACTION_LOCALE_SETTINGS =
469            "android.settings.LOCALE_SETTINGS";
470
471    /**
472     * Activity Action: Show settings to configure input methods, in particular
473     * allowing the user to enable input methods.
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_VOICE_INPUT_SETTINGS =
484            "android.settings.VOICE_INPUT_SETTINGS";
485
486    /**
487     * Activity Action: Show settings to configure input methods, in particular
488     * allowing the user to enable input methods.
489     * <p>
490     * In some cases, a matching Activity may not exist, so ensure you
491     * safeguard against this.
492     * <p>
493     * Input: Nothing.
494     * <p>
495     * Output: Nothing.
496     */
497    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
498    public static final String ACTION_INPUT_METHOD_SETTINGS =
499            "android.settings.INPUT_METHOD_SETTINGS";
500
501    /**
502     * Activity Action: Show settings to enable/disable input method subtypes.
503     * <p>
504     * In some cases, a matching Activity may not exist, so ensure you
505     * safeguard against this.
506     * <p>
507     * To tell which input method's subtypes are displayed in the settings, add
508     * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
509     * If there is no extra in this Intent, subtypes from all installed input methods
510     * will be displayed in the settings.
511     *
512     * @see android.view.inputmethod.InputMethodInfo#getId
513     * <p>
514     * Input: Nothing.
515     * <p>
516     * Output: Nothing.
517     */
518    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
519    public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
520            "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
521
522    /**
523     * Activity Action: Show a dialog to select input method.
524     * <p>
525     * In some cases, a matching Activity may not exist, so ensure you
526     * safeguard against this.
527     * <p>
528     * Input: Nothing.
529     * <p>
530     * Output: Nothing.
531     * @hide
532     */
533    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
534    public static final String ACTION_SHOW_INPUT_METHOD_PICKER =
535            "android.settings.SHOW_INPUT_METHOD_PICKER";
536
537    /**
538     * Activity Action: Show settings to manage the user input dictionary.
539     * <p>
540     * Starting with {@link android.os.Build.VERSION_CODES#KITKAT},
541     * it is guaranteed there will always be an appropriate implementation for this Intent action.
542     * In prior releases of the platform this was optional, so ensure you safeguard against it.
543     * <p>
544     * Input: Nothing.
545     * <p>
546     * Output: Nothing.
547     */
548    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
549    public static final String ACTION_USER_DICTIONARY_SETTINGS =
550            "android.settings.USER_DICTIONARY_SETTINGS";
551
552    /**
553     * Activity Action: Show settings to configure the hardware keyboard.
554     * <p>
555     * In some cases, a matching Activity may not exist, so ensure you
556     * safeguard against this.
557     * <p>
558     * Input: Nothing.
559     * <p>
560     * Output: Nothing.
561     */
562    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
563    public static final String ACTION_HARD_KEYBOARD_SETTINGS =
564            "android.settings.HARD_KEYBOARD_SETTINGS";
565
566    /**
567     * Activity Action: Adds a word to the user dictionary.
568     * <p>
569     * In some cases, a matching Activity may not exist, so ensure you
570     * safeguard against this.
571     * <p>
572     * Input: An extra with key <code>word</code> that contains the word
573     * that should be added to the dictionary.
574     * <p>
575     * Output: Nothing.
576     *
577     * @hide
578     */
579    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
580    public static final String ACTION_USER_DICTIONARY_INSERT =
581            "com.android.settings.USER_DICTIONARY_INSERT";
582
583    /**
584     * Activity Action: Show settings to allow configuration of application-related settings.
585     * <p>
586     * In some cases, a matching Activity may not exist, so ensure you
587     * safeguard against this.
588     * <p>
589     * Input: Nothing.
590     * <p>
591     * Output: Nothing.
592     */
593    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
594    public static final String ACTION_APPLICATION_SETTINGS =
595            "android.settings.APPLICATION_SETTINGS";
596
597    /**
598     * Activity Action: Show settings to allow configuration of application
599     * development-related settings.  As of
600     * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} this action is
601     * a required part of the platform.
602     * <p>
603     * Input: Nothing.
604     * <p>
605     * Output: Nothing.
606     */
607    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
608    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
609            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
610
611    /**
612     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
613     * <p>
614     * In some cases, a matching Activity may not exist, so ensure you
615     * safeguard against this.
616     * <p>
617     * Input: Nothing.
618     * <p>
619     * Output: Nothing.
620     */
621    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
622    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
623            "android.settings.QUICK_LAUNCH_SETTINGS";
624
625    /**
626     * Activity Action: Show settings to manage installed applications.
627     * <p>
628     * In some cases, a matching Activity may not exist, so ensure you
629     * safeguard against this.
630     * <p>
631     * Input: Nothing.
632     * <p>
633     * Output: Nothing.
634     */
635    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
636    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
637            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
638
639    /**
640     * Activity Action: Show settings to manage all applications.
641     * <p>
642     * In some cases, a matching Activity may not exist, so ensure you
643     * safeguard against this.
644     * <p>
645     * Input: Nothing.
646     * <p>
647     * Output: Nothing.
648     */
649    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
650    public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
651            "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";
652
653    /**
654     * Activity Action: Show screen for controlling which apps can draw on top of other apps.
655     * <p>
656     * In some cases, a matching Activity may not exist, so ensure you
657     * safeguard against this.
658     * <p>
659     * Input: Optionally, the Intent's data URI can specify the application package name to
660     * directly invoke the management GUI specific to the package name. For example
661     * "package:com.my.app".
662     * <p>
663     * Output: Nothing.
664     */
665    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
666    public static final String ACTION_MANAGE_OVERLAY_PERMISSION =
667            "android.settings.action.MANAGE_OVERLAY_PERMISSION";
668
669    /**
670     * Activity Action: Show screen for controlling which apps are allowed to write/modify
671     * system settings.
672     * <p>
673     * In some cases, a matching Activity may not exist, so ensure you
674     * safeguard against this.
675     * <p>
676     * Input: Optionally, the Intent's data URI can specify the application package name to
677     * directly invoke the management GUI specific to the package name. For example
678     * "package:com.my.app".
679     * <p>
680     * Output: Nothing.
681     */
682    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
683    public static final String ACTION_MANAGE_WRITE_SETTINGS =
684            "android.settings.action.MANAGE_WRITE_SETTINGS";
685
686    /**
687     * Activity Action: Show screen of details about a particular application.
688     * <p>
689     * In some cases, a matching Activity may not exist, so ensure you
690     * safeguard against this.
691     * <p>
692     * Input: The Intent's data URI specifies the application package name
693     * to be shown, with the "package" scheme.  That is "package:com.my.app".
694     * <p>
695     * Output: Nothing.
696     */
697    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
698    public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
699            "android.settings.APPLICATION_DETAILS_SETTINGS";
700
701    /**
702     * Activity Action: Show screen for controlling which apps can ignore battery optimizations.
703     * <p>
704     * Input: Nothing.
705     * <p>
706     * Output: Nothing.
707     * <p>
708     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
709     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
710     * already ignoring optimizations.  You can use
711     * {@link #ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS} to ask the user to put you
712     * on this list.
713     */
714    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
715    public static final String ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS =
716            "android.settings.IGNORE_BATTERY_OPTIMIZATION_SETTINGS";
717
718    /**
719     * Activity Action: Ask the user to allow an app to ignore battery optimizations (that is,
720     * put them on the whitelist of apps shown by
721     * {@link #ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS}).  For an app to use this, it also
722     * must hold the {@link android.Manifest.permission#REQUEST_IGNORE_BATTERY_OPTIMIZATIONS}
723     * permission.
724     * <p><b>Note:</b> most applications should <em>not</em> use this; there are many facilities
725     * provided by the platform for applications to operate correctly in the various power
726     * saving modes.  This is only for unusual applications that need to deeply control their own
727     * execution, at the potential expense of the user's battery life.  Note that these applications
728     * greatly run the risk of showing to the user as high power consumers on their device.</p>
729     * <p>
730     * Input: The Intent's data URI must specify the application package name
731     * to be shown, with the "package" scheme.  That is "package:com.my.app".
732     * <p>
733     * Output: Nothing.
734     * <p>
735     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
736     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
737     * already ignoring optimizations.
738     */
739    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
740    public static final String ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS =
741            "android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS";
742
743    /**
744     * Activity Action: Show screen for controlling background data
745     * restrictions for a particular application.
746     * <p>
747     * Input: Intent's data URI set with an application name, using the
748     * "package" schema (like "package:com.my.app").
749     *
750     * <p>
751     * Output: Nothing.
752     * <p>
753     * Applications can also use {@link android.net.ConnectivityManager#getRestrictBackgroundStatus
754     * ConnectivityManager#getRestrictBackgroundStatus()} to determine the
755     * status of the background data restrictions for them.
756     */
757    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
758    public static final String ACTION_IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS =
759            "android.settings.IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS";
760
761    /**
762     * @hide
763     * Activity Action: Show the "app ops" settings screen.
764     * <p>
765     * Input: Nothing.
766     * <p>
767     * Output: Nothing.
768     */
769    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
770    public static final String ACTION_APP_OPS_SETTINGS =
771            "android.settings.APP_OPS_SETTINGS";
772
773    /**
774     * Activity Action: Show settings for system update functionality.
775     * <p>
776     * In some cases, a matching Activity may not exist, so ensure you
777     * safeguard against this.
778     * <p>
779     * Input: Nothing.
780     * <p>
781     * Output: Nothing.
782     *
783     * @hide
784     */
785    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
786    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
787            "android.settings.SYSTEM_UPDATE_SETTINGS";
788
789    /**
790     * Activity Action: Show settings to allow configuration of sync settings.
791     * <p>
792     * In some cases, a matching Activity may not exist, so ensure you
793     * safeguard against this.
794     * <p>
795     * The account types available to add via the add account button may be restricted by adding an
796     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
797     * authorities. Only account types which can sync with that content provider will be offered to
798     * the user.
799     * <p>
800     * Input: Nothing.
801     * <p>
802     * Output: Nothing.
803     */
804    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
805    public static final String ACTION_SYNC_SETTINGS =
806            "android.settings.SYNC_SETTINGS";
807
808    /**
809     * Activity Action: Show add account screen for creating a new account.
810     * <p>
811     * In some cases, a matching Activity may not exist, so ensure you
812     * safeguard against this.
813     * <p>
814     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
815     * extra to the Intent with one or more syncable content provider's authorities.  Only account
816     * types which can sync with that content provider will be offered to the user.
817     * <p>
818     * Account types can also be filtered by adding an {@link #EXTRA_ACCOUNT_TYPES} extra to the
819     * Intent with one or more account types.
820     * <p>
821     * Input: Nothing.
822     * <p>
823     * Output: Nothing.
824     */
825    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
826    public static final String ACTION_ADD_ACCOUNT =
827            "android.settings.ADD_ACCOUNT_SETTINGS";
828
829    /**
830     * Activity Action: Show settings for selecting the network operator.
831     * <p>
832     * In some cases, a matching Activity may not exist, so ensure you
833     * safeguard against this.
834     * <p>
835     * Input: Nothing.
836     * <p>
837     * Output: Nothing.
838     */
839    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
840    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
841            "android.settings.NETWORK_OPERATOR_SETTINGS";
842
843    /**
844     * Activity Action: Show settings for selection of 2G/3G.
845     * <p>
846     * In some cases, a matching Activity may not exist, so ensure you
847     * safeguard against this.
848     * <p>
849     * Input: Nothing.
850     * <p>
851     * Output: Nothing.
852     */
853    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
854    public static final String ACTION_DATA_ROAMING_SETTINGS =
855            "android.settings.DATA_ROAMING_SETTINGS";
856
857    /**
858     * Activity Action: Show settings for internal storage.
859     * <p>
860     * In some cases, a matching Activity may not exist, so ensure you
861     * safeguard against this.
862     * <p>
863     * Input: Nothing.
864     * <p>
865     * Output: Nothing.
866     */
867    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
868    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
869            "android.settings.INTERNAL_STORAGE_SETTINGS";
870    /**
871     * Activity Action: Show settings for memory card storage.
872     * <p>
873     * In some cases, a matching Activity may not exist, so ensure you
874     * safeguard against this.
875     * <p>
876     * Input: Nothing.
877     * <p>
878     * Output: Nothing.
879     */
880    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
881    public static final String ACTION_MEMORY_CARD_SETTINGS =
882            "android.settings.MEMORY_CARD_SETTINGS";
883
884    /**
885     * Activity Action: Show settings for global search.
886     * <p>
887     * In some cases, a matching Activity may not exist, so ensure you
888     * safeguard against this.
889     * <p>
890     * Input: Nothing.
891     * <p>
892     * Output: Nothing
893     */
894    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
895    public static final String ACTION_SEARCH_SETTINGS =
896        "android.search.action.SEARCH_SETTINGS";
897
898    /**
899     * Activity Action: Show general device information settings (serial
900     * number, software version, phone number, etc.).
901     * <p>
902     * In some cases, a matching Activity may not exist, so ensure you
903     * safeguard against this.
904     * <p>
905     * Input: Nothing.
906     * <p>
907     * Output: Nothing
908     */
909    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
910    public static final String ACTION_DEVICE_INFO_SETTINGS =
911        "android.settings.DEVICE_INFO_SETTINGS";
912
913    /**
914     * Activity Action: Show NFC settings.
915     * <p>
916     * This shows UI that allows NFC to be turned on or off.
917     * <p>
918     * In some cases, a matching Activity may not exist, so ensure you
919     * safeguard against this.
920     * <p>
921     * Input: Nothing.
922     * <p>
923     * Output: Nothing
924     * @see android.nfc.NfcAdapter#isEnabled()
925     */
926    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
927    public static final String ACTION_NFC_SETTINGS = "android.settings.NFC_SETTINGS";
928
929    /**
930     * Activity Action: Show NFC Sharing settings.
931     * <p>
932     * This shows UI that allows NDEF Push (Android Beam) to be turned on or
933     * off.
934     * <p>
935     * In some cases, a matching Activity may not exist, so ensure you
936     * safeguard against this.
937     * <p>
938     * Input: Nothing.
939     * <p>
940     * Output: Nothing
941     * @see android.nfc.NfcAdapter#isNdefPushEnabled()
942     */
943    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
944    public static final String ACTION_NFCSHARING_SETTINGS =
945        "android.settings.NFCSHARING_SETTINGS";
946
947    /**
948     * Activity Action: Show NFC Tap & Pay settings
949     * <p>
950     * This shows UI that allows the user to configure Tap&Pay
951     * settings.
952     * <p>
953     * In some cases, a matching Activity may not exist, so ensure you
954     * safeguard against this.
955     * <p>
956     * Input: Nothing.
957     * <p>
958     * Output: Nothing
959     */
960    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
961    public static final String ACTION_NFC_PAYMENT_SETTINGS =
962        "android.settings.NFC_PAYMENT_SETTINGS";
963
964    /**
965     * Activity Action: Show Daydream settings.
966     * <p>
967     * In some cases, a matching Activity may not exist, so ensure you
968     * safeguard against this.
969     * <p>
970     * Input: Nothing.
971     * <p>
972     * Output: Nothing.
973     * @see android.service.dreams.DreamService
974     */
975    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
976    public static final String ACTION_DREAM_SETTINGS = "android.settings.DREAM_SETTINGS";
977
978    /**
979     * Activity Action: Show Notification listener settings.
980     * <p>
981     * In some cases, a matching Activity may not exist, so ensure you
982     * safeguard against this.
983     * <p>
984     * Input: Nothing.
985     * <p>
986     * Output: Nothing.
987     * @see android.service.notification.NotificationListenerService
988     */
989    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
990    public static final String ACTION_NOTIFICATION_LISTENER_SETTINGS
991            = "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS";
992
993    /**
994     * Activity Action: Show Do Not Disturb access settings.
995     * <p>
996     * Users can grant and deny access to Do Not Disturb configuration from here.
997     * See {@link android.app.NotificationManager#isNotificationPolicyAccessGranted()} for more
998     * details.
999     * <p>
1000     * Input: Nothing.
1001     * <p>
1002     * Output: Nothing.
1003     */
1004    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1005    public static final String ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS
1006            = "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS";
1007
1008    /**
1009     * @hide
1010     */
1011    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1012    public static final String ACTION_CONDITION_PROVIDER_SETTINGS
1013            = "android.settings.ACTION_CONDITION_PROVIDER_SETTINGS";
1014
1015    /**
1016     * Activity Action: Show settings for video captioning.
1017     * <p>
1018     * In some cases, a matching Activity may not exist, so ensure you safeguard
1019     * against this.
1020     * <p>
1021     * Input: Nothing.
1022     * <p>
1023     * Output: Nothing.
1024     */
1025    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1026    public static final String ACTION_CAPTIONING_SETTINGS = "android.settings.CAPTIONING_SETTINGS";
1027
1028    /**
1029     * Activity Action: Show the top level print settings.
1030     * <p>
1031     * In some cases, a matching Activity may not exist, so ensure you
1032     * safeguard against this.
1033     * <p>
1034     * Input: Nothing.
1035     * <p>
1036     * Output: Nothing.
1037     */
1038    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1039    public static final String ACTION_PRINT_SETTINGS =
1040            "android.settings.ACTION_PRINT_SETTINGS";
1041
1042    /**
1043     * Activity Action: Show Zen Mode configuration settings.
1044     *
1045     * @hide
1046     */
1047    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1048    public static final String ACTION_ZEN_MODE_SETTINGS = "android.settings.ZEN_MODE_SETTINGS";
1049
1050    /**
1051     * Activity Action: Show Zen Mode priority configuration settings.
1052     *
1053     * @hide
1054     */
1055    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1056    public static final String ACTION_ZEN_MODE_PRIORITY_SETTINGS
1057            = "android.settings.ZEN_MODE_PRIORITY_SETTINGS";
1058
1059    /**
1060     * Activity Action: Show Zen Mode automation configuration settings.
1061     *
1062     * @hide
1063     */
1064    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1065    public static final String ACTION_ZEN_MODE_AUTOMATION_SETTINGS
1066            = "android.settings.ZEN_MODE_AUTOMATION_SETTINGS";
1067
1068    /**
1069     * Activity Action: Modify do not disturb mode settings.
1070     * <p>
1071     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1072     * <p>
1073     * This intent MUST be started using
1074     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1075     * startVoiceActivity}.
1076     * <p>
1077     * Note: The Activity implementing this intent MUST verify that
1078     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction}.
1079     * returns true before modifying the setting.
1080     * <p>
1081     * Input: The optional {@link #EXTRA_DO_NOT_DISTURB_MODE_MINUTES} extra can be used to indicate
1082     * how long the user wishes to avoid interruptions for. The optional
1083     * {@link #EXTRA_DO_NOT_DISTURB_MODE_ENABLED} extra can be to indicate if the user is
1084     * enabling or disabling do not disturb mode. If either extra is not included, the
1085     * user maybe asked to provide the value.
1086     * <p>
1087     * Output: Nothing.
1088     */
1089    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1090    public static final String ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE =
1091            "android.settings.VOICE_CONTROL_DO_NOT_DISTURB_MODE";
1092
1093    /**
1094     * Activity Action: Show Zen Mode schedule rule configuration settings.
1095     *
1096     * @hide
1097     */
1098    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1099    public static final String ACTION_ZEN_MODE_SCHEDULE_RULE_SETTINGS
1100            = "android.settings.ZEN_MODE_SCHEDULE_RULE_SETTINGS";
1101
1102    /**
1103     * Activity Action: Show Zen Mode event rule configuration settings.
1104     *
1105     * @hide
1106     */
1107    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1108    public static final String ACTION_ZEN_MODE_EVENT_RULE_SETTINGS
1109            = "android.settings.ZEN_MODE_EVENT_RULE_SETTINGS";
1110
1111    /**
1112     * Activity Action: Show Zen Mode external rule configuration settings.
1113     *
1114     * @hide
1115     */
1116    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1117    public static final String ACTION_ZEN_MODE_EXTERNAL_RULE_SETTINGS
1118            = "android.settings.ZEN_MODE_EXTERNAL_RULE_SETTINGS";
1119
1120    /**
1121     * Activity Action: Show the regulatory information screen for the device.
1122     * <p>
1123     * In some cases, a matching Activity may not exist, so ensure you safeguard
1124     * against this.
1125     * <p>
1126     * Input: Nothing.
1127     * <p>
1128     * Output: Nothing.
1129     */
1130    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1131    public static final String
1132            ACTION_SHOW_REGULATORY_INFO = "android.settings.SHOW_REGULATORY_INFO";
1133
1134    /**
1135     * Activity Action: Show Device Name Settings.
1136     * <p>
1137     * In some cases, a matching Activity may not exist, so ensure you safeguard
1138     * against this.
1139     *
1140     * @hide
1141     */
1142    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1143    public static final String DEVICE_NAME_SETTINGS = "android.settings.DEVICE_NAME";
1144
1145    /**
1146     * Activity Action: Show pairing settings.
1147     * <p>
1148     * In some cases, a matching Activity may not exist, so ensure you safeguard
1149     * against this.
1150     *
1151     * @hide
1152     */
1153    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1154    public static final String ACTION_PAIRING_SETTINGS = "android.settings.PAIRING_SETTINGS";
1155
1156    /**
1157     * Activity Action: Show battery saver settings.
1158     * <p>
1159     * In some cases, a matching Activity may not exist, so ensure you safeguard
1160     * against this.
1161     */
1162    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1163    public static final String ACTION_BATTERY_SAVER_SETTINGS
1164            = "android.settings.BATTERY_SAVER_SETTINGS";
1165
1166    /**
1167     * Activity Action: Modify Battery Saver mode setting using a voice command.
1168     * <p>
1169     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1170     * <p>
1171     * This intent MUST be started using
1172     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1173     * startVoiceActivity}.
1174     * <p>
1175     * Note: The activity implementing this intent MUST verify that
1176     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
1177     * modifying the setting.
1178     * <p>
1179     * Input: To tell which state batter saver mode should be set to, add the
1180     * {@link #EXTRA_BATTERY_SAVER_MODE_ENABLED} extra to this Intent with the state specified.
1181     * If the extra is not included, no changes will be made.
1182     * <p>
1183     * Output: Nothing.
1184     */
1185    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1186    public static final String ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE =
1187            "android.settings.VOICE_CONTROL_BATTERY_SAVER_MODE";
1188
1189    /**
1190     * Activity Action: Show Home selection settings. If there are multiple activities
1191     * that can satisfy the {@link Intent#CATEGORY_HOME} intent, this screen allows you
1192     * to pick your preferred activity.
1193     */
1194    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1195    public static final String ACTION_HOME_SETTINGS
1196            = "android.settings.HOME_SETTINGS";
1197
1198
1199
1200    /**
1201     * Activity Action: Show Default apps settings.
1202     * <p>
1203     * In some cases, a matching Activity may not exist, so ensure you
1204     * safeguard against this.
1205     * <p>
1206     * Input: Nothing.
1207     * <p>
1208     * Output: Nothing.
1209     */
1210    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1211    public static final String ACTION_MANAGE_DEFAULT_APPS_SETTINGS
1212            = "android.settings.MANAGE_DEFAULT_APPS_SETTINGS";
1213
1214    /**
1215     * Activity Action: Show notification settings.
1216     *
1217     * @hide
1218     */
1219    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1220    public static final String ACTION_NOTIFICATION_SETTINGS
1221            = "android.settings.NOTIFICATION_SETTINGS";
1222
1223    /**
1224     * Activity Action: Show notification settings for a single app.
1225     *
1226     * @hide
1227     */
1228    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1229    public static final String ACTION_APP_NOTIFICATION_SETTINGS
1230            = "android.settings.APP_NOTIFICATION_SETTINGS";
1231
1232    /**
1233     * Activity Action: Show notification redaction settings.
1234     *
1235     * @hide
1236     */
1237    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1238    public static final String ACTION_APP_NOTIFICATION_REDACTION
1239            = "android.settings.ACTION_APP_NOTIFICATION_REDACTION";
1240
1241    /** @hide */ public static final String EXTRA_APP_UID = "app_uid";
1242    /** @hide */ public static final String EXTRA_APP_PACKAGE = "app_package";
1243
1244    /**
1245     * Activity Action: Show a dialog with disabled by policy message.
1246     * <p> If an user action is disabled by policy, this dialog can be triggered to let
1247     * the user know about this.
1248     * <p>
1249     * Input: Nothing.
1250     * <p>
1251     * Output: Nothing.
1252     *
1253     * @hide
1254     */
1255    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1256    public static final String ACTION_SHOW_ADMIN_SUPPORT_DETAILS
1257            = "android.settings.SHOW_ADMIN_SUPPORT_DETAILS";
1258
1259    /**
1260     * Activity Action: Show a dialog for remote bugreport flow.
1261     * <p>
1262     * Input: Nothing.
1263     * <p>
1264     * Output: Nothing.
1265     *
1266     * @hide
1267     */
1268    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1269    public static final String ACTION_SHOW_REMOTE_BUGREPORT_DIALOG
1270            = "android.settings.SHOW_REMOTE_BUGREPORT_DIALOG";
1271
1272    /**
1273     * Activity Action: Show VR listener settings.
1274     * <p>
1275     * Input: Nothing.
1276     * <p>
1277     * Output: Nothing.
1278     *
1279     * @see android.service.vr.VrListenerService
1280     */
1281    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1282    public static final String ACTION_VR_LISTENER_SETTINGS
1283            = "android.settings.VR_LISTENER_SETTINGS";
1284
1285    /**
1286     * Activity Action: Show Storage Manager settings.
1287     * <p>
1288     * Input: Nothing.
1289     * <p>
1290     * Output: Nothing.
1291     *
1292     * @hide
1293     */
1294    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1295    public static final String ACTION_STORAGE_MANAGER_SETTINGS
1296            = "android.settings.STORAGE_MANAGER_SETTINGS";
1297
1298    /**
1299     * Activity Action: Allows user to select current webview implementation.
1300     * <p>
1301     * Input: Nothing.
1302     * <p>
1303     * Output: Nothing.
1304     */
1305    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1306    public static final String ACTION_WEBVIEW_SETTINGS = "android.settings.WEBVIEW_SETTINGS";
1307
1308    // End of Intent actions for Settings
1309
1310    /**
1311     * @hide - Private call() method on SettingsProvider to read from 'system' table.
1312     */
1313    public static final String CALL_METHOD_GET_SYSTEM = "GET_system";
1314
1315    /**
1316     * @hide - Private call() method on SettingsProvider to read from 'secure' table.
1317     */
1318    public static final String CALL_METHOD_GET_SECURE = "GET_secure";
1319
1320    /**
1321     * @hide - Private call() method on SettingsProvider to read from 'global' table.
1322     */
1323    public static final String CALL_METHOD_GET_GLOBAL = "GET_global";
1324
1325    /**
1326     * @hide - Specifies that the caller of the fast-path call()-based flow tracks
1327     * the settings generation in order to cache values locally. If this key is
1328     * mapped to a <code>null</code> string extra in the request bundle, the response
1329     * bundle will contain the same key mapped to a parcelable extra which would be
1330     * an {@link android.util.MemoryIntArray}. The response will also contain an
1331     * integer mapped to the {@link #CALL_METHOD_GENERATION_INDEX_KEY} which is the
1332     * index in the array clients should use to lookup the generation. For efficiency
1333     * the caller should request the generation tracking memory array only if it
1334     * doesn't already have it.
1335     *
1336     * @see #CALL_METHOD_GENERATION_INDEX_KEY
1337     */
1338    public static final String CALL_METHOD_TRACK_GENERATION_KEY = "_track_generation";
1339
1340    /**
1341     * @hide Key with the location in the {@link android.util.MemoryIntArray} where
1342     * to look up the generation id of the backing table. The value is an integer.
1343     *
1344     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1345     */
1346    public static final String CALL_METHOD_GENERATION_INDEX_KEY = "_generation_index";
1347
1348    /**
1349     * @hide Key with the settings table generation. The value is an integer.
1350     *
1351     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1352     */
1353    public static final String CALL_METHOD_GENERATION_KEY = "_generation";
1354
1355    /**
1356     * @hide - User handle argument extra to the fast-path call()-based requests
1357     */
1358    public static final String CALL_METHOD_USER_KEY = "_user";
1359
1360    /** @hide - Private call() method to write to 'system' table */
1361    public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
1362
1363    /** @hide - Private call() method to write to 'secure' table */
1364    public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
1365
1366    /** @hide - Private call() method to write to 'global' table */
1367    public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";
1368
1369    /**
1370     * Activity Extra: Limit available options in launched activity based on the given authority.
1371     * <p>
1372     * This can be passed as an extra field in an Activity Intent with one or more syncable content
1373     * provider's authorities as a String[]. This field is used by some intents to alter the
1374     * behavior of the called activity.
1375     * <p>
1376     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
1377     * on the authority given.
1378     */
1379    public static final String EXTRA_AUTHORITIES = "authorities";
1380
1381    /**
1382     * Activity Extra: Limit available options in launched activity based on the given account
1383     * types.
1384     * <p>
1385     * This can be passed as an extra field in an Activity Intent with one or more account types
1386     * as a String[]. This field is used by some intents to alter the behavior of the called
1387     * activity.
1388     * <p>
1389     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
1390     * list.
1391     */
1392    public static final String EXTRA_ACCOUNT_TYPES = "account_types";
1393
1394    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
1395
1396    /**
1397     * Activity Extra: The device identifier to act upon.
1398     * <p>
1399     * This can be passed as an extra field in an Activity Intent with a single
1400     * InputDeviceIdentifier. This field is used by some activities to jump straight into the
1401     * settings for the given device.
1402     * <p>
1403     * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
1404     * dialog for the given device.
1405     * @hide
1406     */
1407    public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";
1408
1409    /**
1410     * Activity Extra: Enable or disable Airplane Mode.
1411     * <p>
1412     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
1413     * intent as a boolean to indicate if it should be enabled.
1414     */
1415    public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";
1416
1417    /**
1418     * Activity Extra: Enable or disable Battery saver mode.
1419     * <p>
1420     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
1421     * intent as a boolean to indicate if it should be enabled.
1422     */
1423    public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
1424            "android.settings.extra.battery_saver_mode_enabled";
1425
1426    /**
1427     * Activity Extra: Enable or disable Do Not Disturb mode.
1428     * <p>
1429     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1430     * intent as a boolean to indicate if it should be enabled.
1431     */
1432    public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
1433            "android.settings.extra.do_not_disturb_mode_enabled";
1434
1435    /**
1436     * Activity Extra: How many minutes to enable do not disturb mode for.
1437     * <p>
1438     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1439     * intent to indicate how long do not disturb mode should be enabled for.
1440     */
1441    public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
1442            "android.settings.extra.do_not_disturb_mode_minutes";
1443
1444    /**
1445     * Activity Extra: Number of certificates
1446     * <p>
1447     * This can be passed as an extra field to the {@link #ACTION_MONITORING_CERT_INFO}
1448     * intent to indicate the number of certificates
1449     * @hide
1450     */
1451    public static final String EXTRA_NUMBER_OF_CERTIFICATES =
1452            "android.settings.extra.number_of_certificates";
1453
1454    private static final String JID_RESOURCE_PREFIX = "android";
1455
1456    public static final String AUTHORITY = "settings";
1457
1458    private static final String TAG = "Settings";
1459    private static final boolean LOCAL_LOGV = false;
1460
1461    // Lock ensures that when enabling/disabling the master location switch, we don't end up
1462    // with a partial enable/disable state in multi-threaded situations.
1463    private static final Object mLocationSettingsLock = new Object();
1464
1465    public static class SettingNotFoundException extends AndroidException {
1466        public SettingNotFoundException(String msg) {
1467            super(msg);
1468        }
1469    }
1470
1471    /**
1472     * Common base for tables of name/value settings.
1473     */
1474    public static class NameValueTable implements BaseColumns {
1475        public static final String NAME = "name";
1476        public static final String VALUE = "value";
1477
1478        protected static boolean putString(ContentResolver resolver, Uri uri,
1479                String name, String value) {
1480            // The database will take care of replacing duplicates.
1481            try {
1482                ContentValues values = new ContentValues();
1483                values.put(NAME, name);
1484                values.put(VALUE, value);
1485                resolver.insert(uri, values);
1486                return true;
1487            } catch (SQLException e) {
1488                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
1489                return false;
1490            }
1491        }
1492
1493        public static Uri getUriFor(Uri uri, String name) {
1494            return Uri.withAppendedPath(uri, name);
1495        }
1496    }
1497
1498    private static final class GenerationTracker {
1499        private final MemoryIntArray mArray;
1500        private final Runnable mErrorHandler;
1501        private final int mIndex;
1502        private int mCurrentGeneration;
1503
1504        public GenerationTracker(@NonNull MemoryIntArray array, int index,
1505                int generation, Runnable errorHandler) {
1506            mArray = array;
1507            mIndex = index;
1508            mErrorHandler = errorHandler;
1509            mCurrentGeneration = generation;
1510        }
1511
1512        public boolean isGenerationChanged() {
1513            final int currentGeneration = readCurrentGeneration();
1514            if (currentGeneration >= 0) {
1515                if (currentGeneration == mCurrentGeneration) {
1516                    return false;
1517                }
1518                mCurrentGeneration = currentGeneration;
1519            }
1520            return true;
1521        }
1522
1523        private int readCurrentGeneration() {
1524            try {
1525                return mArray.get(mIndex);
1526            } catch (IOException e) {
1527                Log.e(TAG, "Error getting current generation", e);
1528                if (mErrorHandler != null) {
1529                    mErrorHandler.run();
1530                }
1531            }
1532            return -1;
1533        }
1534
1535        public void destroy() {
1536            try {
1537                mArray.close();
1538            } catch (IOException e) {
1539                Log.e(TAG, "Error closing backing array", e);
1540                if (mErrorHandler != null) {
1541                    mErrorHandler.run();
1542                }
1543            }
1544        }
1545    }
1546
1547    // Thread-safe.
1548    private static class NameValueCache {
1549        private static final boolean DEBUG = false;
1550
1551        private final Uri mUri;
1552
1553        private static final String[] SELECT_VALUE =
1554            new String[] { Settings.NameValueTable.VALUE };
1555        private static final String NAME_EQ_PLACEHOLDER = "name=?";
1556
1557        // Must synchronize on 'this' to access mValues and mValuesVersion.
1558        private final HashMap<String, String> mValues = new HashMap<String, String>();
1559
1560        // Initially null; set lazily and held forever.  Synchronized on 'this'.
1561        private IContentProvider mContentProvider = null;
1562
1563        // The method we'll call (or null, to not use) on the provider
1564        // for the fast path of retrieving settings.
1565        private final String mCallGetCommand;
1566        private final String mCallSetCommand;
1567
1568        @GuardedBy("this")
1569        private GenerationTracker mGenerationTracker;
1570
1571        public NameValueCache(Uri uri, String getCommand, String setCommand) {
1572            mUri = uri;
1573            mCallGetCommand = getCommand;
1574            mCallSetCommand = setCommand;
1575        }
1576
1577        private IContentProvider lazyGetProvider(ContentResolver cr) {
1578            IContentProvider cp = null;
1579            synchronized (NameValueCache.this) {
1580                cp = mContentProvider;
1581                if (cp == null) {
1582                    cp = mContentProvider = cr.acquireProvider(mUri.getAuthority());
1583                }
1584            }
1585            return cp;
1586        }
1587
1588        public boolean putStringForUser(ContentResolver cr, String name, String value,
1589                final int userHandle) {
1590            try {
1591                Bundle arg = new Bundle();
1592                arg.putString(Settings.NameValueTable.VALUE, value);
1593                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
1594                IContentProvider cp = lazyGetProvider(cr);
1595                cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
1596            } catch (RemoteException e) {
1597                Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
1598                return false;
1599            }
1600            return true;
1601        }
1602
1603        public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
1604            final boolean isSelf = (userHandle == UserHandle.myUserId());
1605            if (isSelf) {
1606                synchronized (NameValueCache.this) {
1607                    if (mGenerationTracker != null) {
1608                        if (mGenerationTracker.isGenerationChanged()) {
1609                            if (DEBUG) {
1610                                Log.i(TAG, "Generation changed for type:"
1611                                        + mUri.getPath() + " in package:"
1612                                        + cr.getPackageName() +" and user:" + userHandle);
1613                            }
1614                            mValues.clear();
1615                        } else if (mValues.containsKey(name)) {
1616                            return mValues.get(name);
1617                        }
1618                    }
1619                }
1620            } else {
1621                if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
1622                        + " by user " + UserHandle.myUserId() + " so skipping cache");
1623            }
1624
1625            IContentProvider cp = lazyGetProvider(cr);
1626
1627            // Try the fast path first, not using query().  If this
1628            // fails (alternate Settings provider that doesn't support
1629            // this interface?) then we fall back to the query/table
1630            // interface.
1631            if (mCallGetCommand != null) {
1632                try {
1633                    Bundle args = null;
1634                    if (!isSelf) {
1635                        args = new Bundle();
1636                        args.putInt(CALL_METHOD_USER_KEY, userHandle);
1637                    }
1638                    boolean needsGenerationTracker = false;
1639                    synchronized (NameValueCache.this) {
1640                        if (isSelf && mGenerationTracker == null) {
1641                            needsGenerationTracker = true;
1642                            if (args == null) {
1643                                args = new Bundle();
1644                            }
1645                            args.putString(CALL_METHOD_TRACK_GENERATION_KEY, null);
1646                            if (DEBUG) {
1647                                Log.i(TAG, "Requested generation tracker for type: "+ mUri.getPath()
1648                                        + " in package:" + cr.getPackageName() +" and user:"
1649                                        + userHandle);
1650                            }
1651                        }
1652                    }
1653                    Bundle b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
1654                    if (b != null) {
1655                        String value = b.getString(Settings.NameValueTable.VALUE);
1656                        // Don't update our cache for reads of other users' data
1657                        if (isSelf) {
1658                            synchronized (NameValueCache.this) {
1659                                if (needsGenerationTracker) {
1660                                    MemoryIntArray array = b.getParcelable(
1661                                            CALL_METHOD_TRACK_GENERATION_KEY);
1662                                    final int index = b.getInt(
1663                                            CALL_METHOD_GENERATION_INDEX_KEY, -1);
1664                                    if (array != null && index >= 0) {
1665                                        final int generation = b.getInt(
1666                                                CALL_METHOD_GENERATION_KEY, 0);
1667                                        if (DEBUG) {
1668                                            Log.i(TAG, "Received generation tracker for type:"
1669                                                    + mUri.getPath() + " in package:"
1670                                                    + cr.getPackageName() + " and user:"
1671                                                    + userHandle + " with index:" + index);
1672                                        }
1673                                        mGenerationTracker = new GenerationTracker(array, index,
1674                                                generation, () -> {
1675                                            synchronized (NameValueCache.this) {
1676                                                Log.e(TAG, "Error accessing generation"
1677                                                        + " tracker - removing");
1678                                                if (mGenerationTracker != null) {
1679                                                    GenerationTracker generationTracker =
1680                                                            mGenerationTracker;
1681                                                    mGenerationTracker = null;
1682                                                    generationTracker.destroy();
1683                                                    mValues.clear();
1684                                                }
1685                                            }
1686                                        });
1687                                    }
1688                                }
1689                                mValues.put(name, value);
1690                            }
1691                        } else {
1692                            if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
1693                                    + " by " + UserHandle.myUserId()
1694                                    + " so not updating cache");
1695                        }
1696                        return value;
1697                    }
1698                    // If the response Bundle is null, we fall through
1699                    // to the query interface below.
1700                } catch (RemoteException e) {
1701                    // Not supported by the remote side?  Fall through
1702                    // to query().
1703                }
1704            }
1705
1706            Cursor c = null;
1707            try {
1708                c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE, NAME_EQ_PLACEHOLDER,
1709                             new String[]{name}, null, null);
1710                if (c == null) {
1711                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
1712                    return null;
1713                }
1714
1715                String value = c.moveToNext() ? c.getString(0) : null;
1716                synchronized (NameValueCache.this) {
1717                    mValues.put(name, value);
1718                }
1719                if (LOCAL_LOGV) {
1720                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
1721                            name + " = " + (value == null ? "(null)" : value));
1722                }
1723                return value;
1724            } catch (RemoteException e) {
1725                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
1726                return null;  // Return null, but don't cache it.
1727            } finally {
1728                if (c != null) c.close();
1729            }
1730        }
1731    }
1732
1733    /**
1734     * Checks if the specified context can draw on top of other apps. As of API
1735     * level 23, an app cannot draw on top of other apps unless it declares the
1736     * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its
1737     * manifest, <em>and</em> the user specifically grants the app this
1738     * capability. To prompt the user to grant this approval, the app must send an
1739     * intent with the action
1740     * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}, which
1741     * causes the system to display a permission management screen.
1742     *
1743     * @param context App context.
1744     * @return true if the specified context can draw on top of other apps, false otherwise
1745     */
1746    public static boolean canDrawOverlays(Context context) {
1747        return Settings.isCallingPackageAllowedToDrawOverlays(context, Process.myUid(),
1748                context.getOpPackageName(), false);
1749    }
1750
1751    /**
1752     * System settings, containing miscellaneous system preferences.  This
1753     * table holds simple name/value pairs.  There are convenience
1754     * functions for accessing individual settings entries.
1755     */
1756    public static final class System extends NameValueTable {
1757        private static final float DEFAULT_FONT_SCALE = 1.0f;
1758
1759        /** @hide */
1760        public static interface Validator {
1761            public boolean validate(String value);
1762        }
1763
1764        /**
1765         * The content:// style URL for this table
1766         */
1767        public static final Uri CONTENT_URI =
1768            Uri.parse("content://" + AUTHORITY + "/system");
1769
1770        private static final NameValueCache sNameValueCache = new NameValueCache(
1771                CONTENT_URI,
1772                CALL_METHOD_GET_SYSTEM,
1773                CALL_METHOD_PUT_SYSTEM);
1774
1775        private static final HashSet<String> MOVED_TO_SECURE;
1776        static {
1777            MOVED_TO_SECURE = new HashSet<String>(30);
1778            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
1779            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
1780            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
1781            MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
1782            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
1783            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
1784            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
1785            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
1786            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
1787            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
1788            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
1789            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
1790            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
1791            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
1792            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
1793            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
1794            MOVED_TO_SECURE.add(Secure.WIFI_ON);
1795            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
1796            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
1797            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
1798            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
1799            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
1800            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
1801            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
1802            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
1803            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
1804            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
1805            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
1806
1807            // At one time in System, then Global, but now back in Secure
1808            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
1809        }
1810
1811        private static final HashSet<String> MOVED_TO_GLOBAL;
1812        private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
1813        static {
1814            MOVED_TO_GLOBAL = new HashSet<String>();
1815            MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<String>();
1816
1817            // these were originally in system but migrated to secure in the past,
1818            // so are duplicated in the Secure.* namespace
1819            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
1820            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
1821            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
1822            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
1823            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
1824            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);
1825
1826            // these are moving directly from system to global
1827            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
1828            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
1829            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
1830            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
1831            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
1832            MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
1833            MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
1834            MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
1835            MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
1836            MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
1837            MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
1838            MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
1839            MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
1840            MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
1841            MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
1842            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
1843            MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
1844            MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
1845            MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
1846            MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
1847            MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
1848            MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
1849            MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
1850            MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
1851            MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
1852            MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
1853            MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
1854            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
1855            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
1856            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
1857            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
1858            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
1859            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
1860            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
1861            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
1862        }
1863
1864        private static final Validator sBooleanValidator =
1865                new DiscreteValueValidator(new String[] {"0", "1"});
1866
1867        private static final Validator sNonNegativeIntegerValidator = new Validator() {
1868            @Override
1869            public boolean validate(String value) {
1870                try {
1871                    return Integer.parseInt(value) >= 0;
1872                } catch (NumberFormatException e) {
1873                    return false;
1874                }
1875            }
1876        };
1877
1878        private static final Validator sUriValidator = new Validator() {
1879            @Override
1880            public boolean validate(String value) {
1881                try {
1882                    Uri.decode(value);
1883                    return true;
1884                } catch (IllegalArgumentException e) {
1885                    return false;
1886                }
1887            }
1888        };
1889
1890        private static final Validator sLenientIpAddressValidator = new Validator() {
1891            private static final int MAX_IPV6_LENGTH = 45;
1892
1893            @Override
1894            public boolean validate(String value) {
1895                return value.length() <= MAX_IPV6_LENGTH;
1896            }
1897        };
1898
1899        /** @hide */
1900        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
1901            outKeySet.addAll(MOVED_TO_GLOBAL);
1902            outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
1903        }
1904
1905        /** @hide */
1906        public static void getMovedToSecureSettings(Set<String> outKeySet) {
1907            outKeySet.addAll(MOVED_TO_SECURE);
1908        }
1909
1910        /** @hide */
1911        public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
1912            outKeySet.addAll(MOVED_TO_GLOBAL);
1913        }
1914
1915        /**
1916         * Look up a name in the database.
1917         * @param resolver to access the database with
1918         * @param name to look up in the table
1919         * @return the corresponding value, or null if not present
1920         */
1921        public static String getString(ContentResolver resolver, String name) {
1922            return getStringForUser(resolver, name, UserHandle.myUserId());
1923        }
1924
1925        /** @hide */
1926        public static String getStringForUser(ContentResolver resolver, String name,
1927                int userHandle) {
1928            if (MOVED_TO_SECURE.contains(name)) {
1929                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1930                        + " to android.provider.Settings.Secure, returning read-only value.");
1931                return Secure.getStringForUser(resolver, name, userHandle);
1932            }
1933            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1934                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1935                        + " to android.provider.Settings.Global, returning read-only value.");
1936                return Global.getStringForUser(resolver, name, userHandle);
1937            }
1938            return sNameValueCache.getStringForUser(resolver, name, userHandle);
1939        }
1940
1941        /**
1942         * Store a name/value pair into the database.
1943         * @param resolver to access the database with
1944         * @param name to store
1945         * @param value to associate with the name
1946         * @return true if the value was set, false on database errors
1947         */
1948        public static boolean putString(ContentResolver resolver, String name, String value) {
1949            return putStringForUser(resolver, name, value, UserHandle.myUserId());
1950        }
1951
1952        /** @hide */
1953        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
1954                int userHandle) {
1955            if (MOVED_TO_SECURE.contains(name)) {
1956                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1957                        + " to android.provider.Settings.Secure, value is unchanged.");
1958                return false;
1959            }
1960            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1961                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1962                        + " to android.provider.Settings.Global, value is unchanged.");
1963                return false;
1964            }
1965            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
1966        }
1967
1968        /**
1969         * Construct the content URI for a particular name/value pair,
1970         * useful for monitoring changes with a ContentObserver.
1971         * @param name to look up in the table
1972         * @return the corresponding content URI, or null if not present
1973         */
1974        public static Uri getUriFor(String name) {
1975            if (MOVED_TO_SECURE.contains(name)) {
1976                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1977                    + " to android.provider.Settings.Secure, returning Secure URI.");
1978                return Secure.getUriFor(Secure.CONTENT_URI, name);
1979            }
1980            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1981                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1982                        + " to android.provider.Settings.Global, returning read-only global URI.");
1983                return Global.getUriFor(Global.CONTENT_URI, name);
1984            }
1985            return getUriFor(CONTENT_URI, name);
1986        }
1987
1988        /**
1989         * Convenience function for retrieving a single system settings value
1990         * as an integer.  Note that internally setting values are always
1991         * stored as strings; this function converts the string to an integer
1992         * for you.  The default value will be returned if the setting is
1993         * not defined or not an integer.
1994         *
1995         * @param cr The ContentResolver to access.
1996         * @param name The name of the setting to retrieve.
1997         * @param def Value to return if the setting is not defined.
1998         *
1999         * @return The setting's current value, or 'def' if it is not defined
2000         * or not a valid integer.
2001         */
2002        public static int getInt(ContentResolver cr, String name, int def) {
2003            return getIntForUser(cr, name, def, UserHandle.myUserId());
2004        }
2005
2006        /** @hide */
2007        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
2008            String v = getStringForUser(cr, name, userHandle);
2009            try {
2010                return v != null ? Integer.parseInt(v) : def;
2011            } catch (NumberFormatException e) {
2012                return def;
2013            }
2014        }
2015
2016        /**
2017         * Convenience function for retrieving a single system settings value
2018         * as an integer.  Note that internally setting values are always
2019         * stored as strings; this function converts the string to an integer
2020         * for you.
2021         * <p>
2022         * This version does not take a default value.  If the setting has not
2023         * been set, or the string value is not a number,
2024         * it throws {@link SettingNotFoundException}.
2025         *
2026         * @param cr The ContentResolver to access.
2027         * @param name The name of the setting to retrieve.
2028         *
2029         * @throws SettingNotFoundException Thrown if a setting by the given
2030         * name can't be found or the setting value is not an integer.
2031         *
2032         * @return The setting's current value.
2033         */
2034        public static int getInt(ContentResolver cr, String name)
2035                throws SettingNotFoundException {
2036            return getIntForUser(cr, name, UserHandle.myUserId());
2037        }
2038
2039        /** @hide */
2040        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
2041                throws SettingNotFoundException {
2042            String v = getStringForUser(cr, name, userHandle);
2043            try {
2044                return Integer.parseInt(v);
2045            } catch (NumberFormatException e) {
2046                throw new SettingNotFoundException(name);
2047            }
2048        }
2049
2050        /**
2051         * Convenience function for updating a single settings value as an
2052         * integer. This will either create a new entry in the table if the
2053         * given name does not exist, or modify the value of the existing row
2054         * with that name.  Note that internally setting values are always
2055         * stored as strings, so this function converts the given value to a
2056         * string before storing it.
2057         *
2058         * @param cr The ContentResolver to access.
2059         * @param name The name of the setting to modify.
2060         * @param value The new value for the setting.
2061         * @return true if the value was set, false on database errors
2062         */
2063        public static boolean putInt(ContentResolver cr, String name, int value) {
2064            return putIntForUser(cr, name, value, UserHandle.myUserId());
2065        }
2066
2067        /** @hide */
2068        public static boolean putIntForUser(ContentResolver cr, String name, int value,
2069                int userHandle) {
2070            return putStringForUser(cr, name, Integer.toString(value), userHandle);
2071        }
2072
2073        /**
2074         * Convenience function for retrieving a single system settings value
2075         * as a {@code long}.  Note that internally setting values are always
2076         * stored as strings; this function converts the string to a {@code long}
2077         * for you.  The default value will be returned if the setting is
2078         * not defined or not a {@code long}.
2079         *
2080         * @param cr The ContentResolver to access.
2081         * @param name The name of the setting to retrieve.
2082         * @param def Value to return if the setting is not defined.
2083         *
2084         * @return The setting's current value, or 'def' if it is not defined
2085         * or not a valid {@code long}.
2086         */
2087        public static long getLong(ContentResolver cr, String name, long def) {
2088            return getLongForUser(cr, name, def, UserHandle.myUserId());
2089        }
2090
2091        /** @hide */
2092        public static long getLongForUser(ContentResolver cr, String name, long def,
2093                int userHandle) {
2094            String valString = getStringForUser(cr, name, userHandle);
2095            long value;
2096            try {
2097                value = valString != null ? Long.parseLong(valString) : def;
2098            } catch (NumberFormatException e) {
2099                value = def;
2100            }
2101            return value;
2102        }
2103
2104        /**
2105         * Convenience function for retrieving a single system settings value
2106         * as a {@code long}.  Note that internally setting values are always
2107         * stored as strings; this function converts the string to a {@code long}
2108         * for you.
2109         * <p>
2110         * This version does not take a default value.  If the setting has not
2111         * been set, or the string value is not a number,
2112         * it throws {@link SettingNotFoundException}.
2113         *
2114         * @param cr The ContentResolver to access.
2115         * @param name The name of the setting to retrieve.
2116         *
2117         * @return The setting's current value.
2118         * @throws SettingNotFoundException Thrown if a setting by the given
2119         * name can't be found or the setting value is not an integer.
2120         */
2121        public static long getLong(ContentResolver cr, String name)
2122                throws SettingNotFoundException {
2123            return getLongForUser(cr, name, UserHandle.myUserId());
2124        }
2125
2126        /** @hide */
2127        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
2128                throws SettingNotFoundException {
2129            String valString = getStringForUser(cr, name, userHandle);
2130            try {
2131                return Long.parseLong(valString);
2132            } catch (NumberFormatException e) {
2133                throw new SettingNotFoundException(name);
2134            }
2135        }
2136
2137        /**
2138         * Convenience function for updating a single settings value as a long
2139         * integer. This will either create a new entry in the table if the
2140         * given name does not exist, or modify the value of the existing row
2141         * with that name.  Note that internally setting values are always
2142         * stored as strings, so this function converts the given value to a
2143         * string before storing it.
2144         *
2145         * @param cr The ContentResolver to access.
2146         * @param name The name of the setting to modify.
2147         * @param value The new value for the setting.
2148         * @return true if the value was set, false on database errors
2149         */
2150        public static boolean putLong(ContentResolver cr, String name, long value) {
2151            return putLongForUser(cr, name, value, UserHandle.myUserId());
2152        }
2153
2154        /** @hide */
2155        public static boolean putLongForUser(ContentResolver cr, String name, long value,
2156                int userHandle) {
2157            return putStringForUser(cr, name, Long.toString(value), userHandle);
2158        }
2159
2160        /**
2161         * Convenience function for retrieving a single system settings value
2162         * as a floating point number.  Note that internally setting values are
2163         * always stored as strings; this function converts the string to an
2164         * float for you. The default value will be returned if the setting
2165         * is not defined or not a valid float.
2166         *
2167         * @param cr The ContentResolver to access.
2168         * @param name The name of the setting to retrieve.
2169         * @param def Value to return if the setting is not defined.
2170         *
2171         * @return The setting's current value, or 'def' if it is not defined
2172         * or not a valid float.
2173         */
2174        public static float getFloat(ContentResolver cr, String name, float def) {
2175            return getFloatForUser(cr, name, def, UserHandle.myUserId());
2176        }
2177
2178        /** @hide */
2179        public static float getFloatForUser(ContentResolver cr, String name, float def,
2180                int userHandle) {
2181            String v = getStringForUser(cr, name, userHandle);
2182            try {
2183                return v != null ? Float.parseFloat(v) : def;
2184            } catch (NumberFormatException e) {
2185                return def;
2186            }
2187        }
2188
2189        /**
2190         * Convenience function for retrieving a single system settings value
2191         * as a float.  Note that internally setting values are always
2192         * stored as strings; this function converts the string to a float
2193         * for you.
2194         * <p>
2195         * This version does not take a default value.  If the setting has not
2196         * been set, or the string value is not a number,
2197         * it throws {@link SettingNotFoundException}.
2198         *
2199         * @param cr The ContentResolver to access.
2200         * @param name The name of the setting to retrieve.
2201         *
2202         * @throws SettingNotFoundException Thrown if a setting by the given
2203         * name can't be found or the setting value is not a float.
2204         *
2205         * @return The setting's current value.
2206         */
2207        public static float getFloat(ContentResolver cr, String name)
2208                throws SettingNotFoundException {
2209            return getFloatForUser(cr, name, UserHandle.myUserId());
2210        }
2211
2212        /** @hide */
2213        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
2214                throws SettingNotFoundException {
2215            String v = getStringForUser(cr, name, userHandle);
2216            if (v == null) {
2217                throw new SettingNotFoundException(name);
2218            }
2219            try {
2220                return Float.parseFloat(v);
2221            } catch (NumberFormatException e) {
2222                throw new SettingNotFoundException(name);
2223            }
2224        }
2225
2226        /**
2227         * Convenience function for updating a single settings value as a
2228         * floating point number. This will either create a new entry in the
2229         * table if the given name does not exist, or modify the value of the
2230         * existing row with that name.  Note that internally setting values
2231         * are always stored as strings, so this function converts the given
2232         * value to a string before storing it.
2233         *
2234         * @param cr The ContentResolver to access.
2235         * @param name The name of the setting to modify.
2236         * @param value The new value for the setting.
2237         * @return true if the value was set, false on database errors
2238         */
2239        public static boolean putFloat(ContentResolver cr, String name, float value) {
2240            return putFloatForUser(cr, name, value, UserHandle.myUserId());
2241        }
2242
2243        /** @hide */
2244        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
2245                int userHandle) {
2246            return putStringForUser(cr, name, Float.toString(value), userHandle);
2247        }
2248
2249        /**
2250         * Convenience function to read all of the current
2251         * configuration-related settings into a
2252         * {@link Configuration} object.
2253         *
2254         * @param cr The ContentResolver to access.
2255         * @param outConfig Where to place the configuration settings.
2256         */
2257        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
2258            adjustConfigurationForUser(cr, outConfig, UserHandle.myUserId(),
2259                    false /* updateSettingsIfEmpty */);
2260        }
2261
2262        /** @hide */
2263        public static void adjustConfigurationForUser(ContentResolver cr, Configuration outConfig,
2264                int userHandle, boolean updateSettingsIfEmpty) {
2265            outConfig.fontScale = Settings.System.getFloatForUser(
2266                    cr, FONT_SCALE, DEFAULT_FONT_SCALE, userHandle);
2267            if (outConfig.fontScale < 0) {
2268                outConfig.fontScale = DEFAULT_FONT_SCALE;
2269            }
2270
2271            final String localeValue =
2272                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle);
2273            if (localeValue != null) {
2274                outConfig.setLocales(LocaleList.forLanguageTags(localeValue));
2275            } else {
2276                // Do not update configuration with emtpy settings since we need to take over the
2277                // locale list of previous user if the settings value is empty. This happens when a
2278                // new user is created.
2279
2280                if (updateSettingsIfEmpty) {
2281                    // Make current configuration persistent. This is necessary the first time a
2282                    // user log in. At the first login, the configuration settings are empty, so we
2283                    // need to store the adjusted configuration as the initial settings.
2284                    Settings.System.putStringForUser(
2285                            cr, SYSTEM_LOCALES, outConfig.getLocales().toLanguageTags(),
2286                            userHandle);
2287                }
2288            }
2289        }
2290
2291        /**
2292         * @hide Erase the fields in the Configuration that should be applied
2293         * by the settings.
2294         */
2295        public static void clearConfiguration(Configuration inoutConfig) {
2296            inoutConfig.fontScale = 0;
2297            if (!inoutConfig.userSetLocale && !inoutConfig.getLocales().isEmpty()) {
2298                inoutConfig.clearLocales();
2299            }
2300        }
2301
2302        /**
2303         * Convenience function to write a batch of configuration-related
2304         * settings from a {@link Configuration} object.
2305         *
2306         * @param cr The ContentResolver to access.
2307         * @param config The settings to write.
2308         * @return true if the values were set, false on database errors
2309         */
2310        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
2311            return putConfigurationForUser(cr, config, UserHandle.myUserId());
2312        }
2313
2314        /** @hide */
2315        public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
2316                int userHandle) {
2317            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
2318                    Settings.System.putStringForUser(
2319                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
2320        }
2321
2322        /** @hide */
2323        public static boolean hasInterestingConfigurationChanges(int changes) {
2324            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
2325                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
2326        }
2327
2328        /** @deprecated - Do not use */
2329        @Deprecated
2330        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
2331            return getShowGTalkServiceStatusForUser(cr, UserHandle.myUserId());
2332        }
2333
2334        /**
2335         * @hide
2336         * @deprecated - Do not use
2337         */
2338        public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
2339                int userHandle) {
2340            return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
2341        }
2342
2343        /** @deprecated - Do not use */
2344        @Deprecated
2345        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
2346            setShowGTalkServiceStatusForUser(cr, flag, UserHandle.myUserId());
2347        }
2348
2349        /**
2350         * @hide
2351         * @deprecated - Do not use
2352         */
2353        @Deprecated
2354        public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
2355                int userHandle) {
2356            putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
2357        }
2358
2359        private static final class DiscreteValueValidator implements Validator {
2360            private final String[] mValues;
2361
2362            public DiscreteValueValidator(String[] values) {
2363                mValues = values;
2364            }
2365
2366            @Override
2367            public boolean validate(String value) {
2368                return ArrayUtils.contains(mValues, value);
2369            }
2370        }
2371
2372        private static final class InclusiveIntegerRangeValidator implements Validator {
2373            private final int mMin;
2374            private final int mMax;
2375
2376            public InclusiveIntegerRangeValidator(int min, int max) {
2377                mMin = min;
2378                mMax = max;
2379            }
2380
2381            @Override
2382            public boolean validate(String value) {
2383                try {
2384                    final int intValue = Integer.parseInt(value);
2385                    return intValue >= mMin && intValue <= mMax;
2386                } catch (NumberFormatException e) {
2387                    return false;
2388                }
2389            }
2390        }
2391
2392        private static final class InclusiveFloatRangeValidator implements Validator {
2393            private final float mMin;
2394            private final float mMax;
2395
2396            public InclusiveFloatRangeValidator(float min, float max) {
2397                mMin = min;
2398                mMax = max;
2399            }
2400
2401            @Override
2402            public boolean validate(String value) {
2403                try {
2404                    final float floatValue = Float.parseFloat(value);
2405                    return floatValue >= mMin && floatValue <= mMax;
2406                } catch (NumberFormatException e) {
2407                    return false;
2408                }
2409            }
2410        }
2411
2412        /**
2413         * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
2414         */
2415        @Deprecated
2416        public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;
2417
2418        /**
2419         * What happens when the user presses the end call button if they're not
2420         * on a call.<br/>
2421         * <b>Values:</b><br/>
2422         * 0 - The end button does nothing.<br/>
2423         * 1 - The end button goes to the home screen.<br/>
2424         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
2425         * 3 - The end button goes to the home screen.  If the user is already on the
2426         * home screen, it puts the device to sleep.
2427         */
2428        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
2429
2430        private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
2431                new InclusiveIntegerRangeValidator(0, 3);
2432
2433        /**
2434         * END_BUTTON_BEHAVIOR value for "go home".
2435         * @hide
2436         */
2437        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
2438
2439        /**
2440         * END_BUTTON_BEHAVIOR value for "go to sleep".
2441         * @hide
2442         */
2443        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
2444
2445        /**
2446         * END_BUTTON_BEHAVIOR default value.
2447         * @hide
2448         */
2449        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
2450
2451        /**
2452         * Is advanced settings mode turned on. 0 == no, 1 == yes
2453         * @hide
2454         */
2455        public static final String ADVANCED_SETTINGS = "advanced_settings";
2456
2457        private static final Validator ADVANCED_SETTINGS_VALIDATOR = sBooleanValidator;
2458
2459        /**
2460         * ADVANCED_SETTINGS default value.
2461         * @hide
2462         */
2463        public static final int ADVANCED_SETTINGS_DEFAULT = 0;
2464
2465        /**
2466         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
2467         */
2468        @Deprecated
2469        public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;
2470
2471        /**
2472         * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
2473         */
2474        @Deprecated
2475        public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;
2476
2477        /**
2478         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
2479         */
2480        @Deprecated
2481        public static final String RADIO_WIFI = Global.RADIO_WIFI;
2482
2483        /**
2484         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
2485         * {@hide}
2486         */
2487        @Deprecated
2488        public static final String RADIO_WIMAX = Global.RADIO_WIMAX;
2489
2490        /**
2491         * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
2492         */
2493        @Deprecated
2494        public static final String RADIO_CELL = Global.RADIO_CELL;
2495
2496        /**
2497         * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
2498         */
2499        @Deprecated
2500        public static final String RADIO_NFC = Global.RADIO_NFC;
2501
2502        /**
2503         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
2504         */
2505        @Deprecated
2506        public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;
2507
2508        /**
2509         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
2510         *
2511         * {@hide}
2512         */
2513        @Deprecated
2514        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
2515                Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;
2516
2517        /**
2518         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
2519         */
2520        @Deprecated
2521        public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;
2522
2523        /**
2524         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
2525         */
2526        @Deprecated
2527        public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;
2528
2529        /**
2530         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
2531         */
2532        @Deprecated
2533        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
2534                Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;
2535
2536        /**
2537         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
2538         */
2539        @Deprecated
2540        public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;
2541
2542        /**
2543         * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
2544         */
2545        @Deprecated
2546        public static final String MODE_RINGER = Global.MODE_RINGER;
2547
2548        /**
2549         * Whether to use static IP and other static network attributes.
2550         * <p>
2551         * Set to 1 for true and 0 for false.
2552         *
2553         * @deprecated Use {@link WifiManager} instead
2554         */
2555        @Deprecated
2556        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
2557
2558        private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = sBooleanValidator;
2559
2560        /**
2561         * The static IP address.
2562         * <p>
2563         * Example: "192.168.1.51"
2564         *
2565         * @deprecated Use {@link WifiManager} instead
2566         */
2567        @Deprecated
2568        public static final String WIFI_STATIC_IP = "wifi_static_ip";
2569
2570        private static final Validator WIFI_STATIC_IP_VALIDATOR = sLenientIpAddressValidator;
2571
2572        /**
2573         * If using static IP, the gateway's IP address.
2574         * <p>
2575         * Example: "192.168.1.1"
2576         *
2577         * @deprecated Use {@link WifiManager} instead
2578         */
2579        @Deprecated
2580        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
2581
2582        private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = sLenientIpAddressValidator;
2583
2584        /**
2585         * If using static IP, the net mask.
2586         * <p>
2587         * Example: "255.255.255.0"
2588         *
2589         * @deprecated Use {@link WifiManager} instead
2590         */
2591        @Deprecated
2592        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
2593
2594        private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = sLenientIpAddressValidator;
2595
2596        /**
2597         * If using static IP, the primary DNS's IP address.
2598         * <p>
2599         * Example: "192.168.1.1"
2600         *
2601         * @deprecated Use {@link WifiManager} instead
2602         */
2603        @Deprecated
2604        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
2605
2606        private static final Validator WIFI_STATIC_DNS1_VALIDATOR = sLenientIpAddressValidator;
2607
2608        /**
2609         * If using static IP, the secondary DNS's IP address.
2610         * <p>
2611         * Example: "192.168.1.2"
2612         *
2613         * @deprecated Use {@link WifiManager} instead
2614         */
2615        @Deprecated
2616        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
2617
2618        private static final Validator WIFI_STATIC_DNS2_VALIDATOR = sLenientIpAddressValidator;
2619
2620        /**
2621         * Determines whether remote devices may discover and/or connect to
2622         * this device.
2623         * <P>Type: INT</P>
2624         * 2 -- discoverable and connectable
2625         * 1 -- connectable but not discoverable
2626         * 0 -- neither connectable nor discoverable
2627         */
2628        public static final String BLUETOOTH_DISCOVERABILITY =
2629            "bluetooth_discoverability";
2630
2631        private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
2632                new InclusiveIntegerRangeValidator(0, 2);
2633
2634        /**
2635         * Bluetooth discoverability timeout.  If this value is nonzero, then
2636         * Bluetooth becomes discoverable for a certain number of seconds,
2637         * after which is becomes simply connectable.  The value is in seconds.
2638         */
2639        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
2640            "bluetooth_discoverability_timeout";
2641
2642        private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
2643                sNonNegativeIntegerValidator;
2644
2645        /**
2646         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
2647         * instead
2648         */
2649        @Deprecated
2650        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
2651
2652        /**
2653         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
2654         * instead
2655         */
2656        @Deprecated
2657        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
2658
2659        /**
2660         * @deprecated Use
2661         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
2662         * instead
2663         */
2664        @Deprecated
2665        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
2666            "lock_pattern_tactile_feedback_enabled";
2667
2668        /**
2669         * A formatted string of the next alarm that is set, or the empty string
2670         * if there is no alarm set.
2671         *
2672         * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
2673         */
2674        @Deprecated
2675        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
2676
2677        private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
2678            private static final int MAX_LENGTH = 1000;
2679
2680            @Override
2681            public boolean validate(String value) {
2682                // TODO: No idea what the correct format is.
2683                return value == null || value.length() < MAX_LENGTH;
2684            }
2685        };
2686
2687        /**
2688         * Scaling factor for fonts, float.
2689         */
2690        public static final String FONT_SCALE = "font_scale";
2691
2692        private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
2693            @Override
2694            public boolean validate(String value) {
2695                try {
2696                    return Float.parseFloat(value) >= 0;
2697                } catch (NumberFormatException e) {
2698                    return false;
2699                }
2700            }
2701        };
2702
2703        /**
2704         * The serialized system locale value.
2705         *
2706         * Do not use this value directory.
2707         * To get system locale, use {@link LocaleList#getDefault} instead.
2708         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
2709         * instead.
2710         * @hide
2711         */
2712        public static final String SYSTEM_LOCALES = "system_locales";
2713
2714
2715        /**
2716         * Name of an application package to be debugged.
2717         *
2718         * @deprecated Use {@link Global#DEBUG_APP} instead
2719         */
2720        @Deprecated
2721        public static final String DEBUG_APP = Global.DEBUG_APP;
2722
2723        /**
2724         * If 1, when launching DEBUG_APP it will wait for the debugger before
2725         * starting user code.  If 0, it will run normally.
2726         *
2727         * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
2728         */
2729        @Deprecated
2730        public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;
2731
2732        /**
2733         * Whether or not to dim the screen. 0=no  1=yes
2734         * @deprecated This setting is no longer used.
2735         */
2736        @Deprecated
2737        public static final String DIM_SCREEN = "dim_screen";
2738
2739        private static final Validator DIM_SCREEN_VALIDATOR = sBooleanValidator;
2740
2741        /**
2742         * The amount of time in milliseconds before the device goes to sleep or begins
2743         * to dream after a period of inactivity.  This value is also known as the
2744         * user activity timeout period since the screen isn't necessarily turned off
2745         * when it expires.
2746         */
2747        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
2748
2749        private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR = sNonNegativeIntegerValidator;
2750
2751        /**
2752         * The screen backlight brightness between 0 and 255.
2753         */
2754        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
2755
2756        private static final Validator SCREEN_BRIGHTNESS_VALIDATOR =
2757                new InclusiveIntegerRangeValidator(0, 255);
2758
2759        /**
2760         * Control whether to enable automatic brightness mode.
2761         */
2762        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
2763
2764        private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = sBooleanValidator;
2765
2766        /**
2767         * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
2768         * or less (<0.0 >-1.0) bright.
2769         * @hide
2770         */
2771        public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";
2772
2773        private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
2774                new InclusiveFloatRangeValidator(-1, 1);
2775
2776        /**
2777         * SCREEN_BRIGHTNESS_MODE value for manual mode.
2778         */
2779        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
2780
2781        /**
2782         * SCREEN_BRIGHTNESS_MODE value for automatic mode.
2783         */
2784        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
2785
2786        /**
2787         * Control whether the process CPU usage meter should be shown.
2788         *
2789         * @deprecated This functionality is no longer available as of
2790         * {@link android.os.Build.VERSION_CODES#N_MR1}.
2791         */
2792        @Deprecated
2793        public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;
2794
2795        /**
2796         * If 1, the activity manager will aggressively finish activities and
2797         * processes as soon as they are no longer needed.  If 0, the normal
2798         * extended lifetime is used.
2799         *
2800         * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
2801         */
2802        @Deprecated
2803        public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;
2804
2805        /**
2806         * Determines which streams are affected by ringer mode changes. The
2807         * stream type's bit should be set to 1 if it should be muted when going
2808         * into an inaudible ringer mode.
2809         */
2810        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
2811
2812        private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
2813                sNonNegativeIntegerValidator;
2814
2815        /**
2816          * Determines which streams are affected by mute. The
2817          * stream type's bit should be set to 1 if it should be muted when a mute request
2818          * is received.
2819          */
2820        public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
2821
2822        private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
2823                sNonNegativeIntegerValidator;
2824
2825        /**
2826         * Whether vibrate is on for different events. This is used internally,
2827         * changing this value will not change the vibrate. See AudioManager.
2828         */
2829        public static final String VIBRATE_ON = "vibrate_on";
2830
2831        private static final Validator VIBRATE_ON_VALIDATOR = sBooleanValidator;
2832
2833        /**
2834         * If 1, redirects the system vibrator to all currently attached input devices
2835         * that support vibration.  If there are no such input devices, then the system
2836         * vibrator is used instead.
2837         * If 0, does not register the system vibrator.
2838         *
2839         * This setting is mainly intended to provide a compatibility mechanism for
2840         * applications that only know about the system vibrator and do not use the
2841         * input device vibrator API.
2842         *
2843         * @hide
2844         */
2845        public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";
2846
2847        private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = sBooleanValidator;
2848
2849        /**
2850         * Ringer volume. This is used internally, changing this value will not
2851         * change the volume. See AudioManager.
2852         *
2853         * @removed Not used by anything since API 2.
2854         */
2855        public static final String VOLUME_RING = "volume_ring";
2856
2857        /**
2858         * System/notifications volume. This is used internally, changing this
2859         * value will not change the volume. See AudioManager.
2860         *
2861         * @removed Not used by anything since API 2.
2862         */
2863        public static final String VOLUME_SYSTEM = "volume_system";
2864
2865        /**
2866         * Voice call volume. This is used internally, changing this value will
2867         * not change the volume. See AudioManager.
2868         *
2869         * @removed Not used by anything since API 2.
2870         */
2871        public static final String VOLUME_VOICE = "volume_voice";
2872
2873        /**
2874         * Music/media/gaming volume. This is used internally, changing this
2875         * value will not change the volume. See AudioManager.
2876         *
2877         * @removed Not used by anything since API 2.
2878         */
2879        public static final String VOLUME_MUSIC = "volume_music";
2880
2881        /**
2882         * Alarm volume. This is used internally, changing this
2883         * value will not change the volume. See AudioManager.
2884         *
2885         * @removed Not used by anything since API 2.
2886         */
2887        public static final String VOLUME_ALARM = "volume_alarm";
2888
2889        /**
2890         * Notification volume. This is used internally, changing this
2891         * value will not change the volume. See AudioManager.
2892         *
2893         * @removed Not used by anything since API 2.
2894         */
2895        public static final String VOLUME_NOTIFICATION = "volume_notification";
2896
2897        /**
2898         * Bluetooth Headset volume. This is used internally, changing this value will
2899         * not change the volume. See AudioManager.
2900         *
2901         * @removed Not used by anything since API 2.
2902         */
2903        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
2904
2905        /**
2906         * Master volume (float in the range 0.0f to 1.0f).
2907         *
2908         * @hide
2909         */
2910        public static final String VOLUME_MASTER = "volume_master";
2911
2912        /**
2913         * Master mono (int 1 = mono, 0 = normal).
2914         *
2915         * @hide
2916         */
2917        public static final String MASTER_MONO = "master_mono";
2918
2919        private static final Validator MASTER_MONO_VALIDATOR = sBooleanValidator;
2920
2921        /**
2922         * Whether the notifications should use the ring volume (value of 1) or
2923         * a separate notification volume (value of 0). In most cases, users
2924         * will have this enabled so the notification and ringer volumes will be
2925         * the same. However, power users can disable this and use the separate
2926         * notification volume control.
2927         * <p>
2928         * Note: This is a one-off setting that will be removed in the future
2929         * when there is profile support. For this reason, it is kept hidden
2930         * from the public APIs.
2931         *
2932         * @hide
2933         * @deprecated
2934         */
2935        @Deprecated
2936        public static final String NOTIFICATIONS_USE_RING_VOLUME =
2937            "notifications_use_ring_volume";
2938
2939        private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = sBooleanValidator;
2940
2941        /**
2942         * Whether silent mode should allow vibration feedback. This is used
2943         * internally in AudioService and the Sound settings activity to
2944         * coordinate decoupling of vibrate and silent modes. This setting
2945         * will likely be removed in a future release with support for
2946         * audio/vibe feedback profiles.
2947         *
2948         * Not used anymore. On devices with vibrator, the user explicitly selects
2949         * silent or vibrate mode.
2950         * Kept for use by legacy database upgrade code in DatabaseHelper.
2951         * @hide
2952         */
2953        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
2954
2955        private static final Validator VIBRATE_IN_SILENT_VALIDATOR = sBooleanValidator;
2956
2957        /**
2958         * The mapping of stream type (integer) to its setting.
2959         *
2960         * @removed  Not used by anything since API 2.
2961         */
2962        public static final String[] VOLUME_SETTINGS = {
2963            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
2964            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
2965        };
2966
2967        /**
2968         * Appended to various volume related settings to record the previous
2969         * values before they the settings were affected by a silent/vibrate
2970         * ringer mode change.
2971         *
2972         * @removed  Not used by anything since API 2.
2973         */
2974        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
2975
2976        /**
2977         * Persistent store for the system-wide default ringtone URI.
2978         * <p>
2979         * If you need to play the default ringtone at any given time, it is recommended
2980         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
2981         * to the set default ringtone at the time of playing.
2982         *
2983         * @see #DEFAULT_RINGTONE_URI
2984         */
2985        public static final String RINGTONE = "ringtone";
2986
2987        private static final Validator RINGTONE_VALIDATOR = sUriValidator;
2988
2989        /**
2990         * A {@link Uri} that will point to the current default ringtone at any
2991         * given time.
2992         * <p>
2993         * If the current default ringtone is in the DRM provider and the caller
2994         * does not have permission, the exception will be a
2995         * FileNotFoundException.
2996         */
2997        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
2998
2999        /** {@hide} */
3000        public static final String RINGTONE_CACHE = "ringtone_cache";
3001        /** {@hide} */
3002        public static final Uri RINGTONE_CACHE_URI = getUriFor(RINGTONE_CACHE);
3003
3004        /**
3005         * Persistent store for the system-wide default notification sound.
3006         *
3007         * @see #RINGTONE
3008         * @see #DEFAULT_NOTIFICATION_URI
3009         */
3010        public static final String NOTIFICATION_SOUND = "notification_sound";
3011
3012        private static final Validator NOTIFICATION_SOUND_VALIDATOR = sUriValidator;
3013
3014        /**
3015         * A {@link Uri} that will point to the current default notification
3016         * sound at any given time.
3017         *
3018         * @see #DEFAULT_RINGTONE_URI
3019         */
3020        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
3021
3022        /** {@hide} */
3023        public static final String NOTIFICATION_SOUND_CACHE = "notification_sound_cache";
3024        /** {@hide} */
3025        public static final Uri NOTIFICATION_SOUND_CACHE_URI = getUriFor(NOTIFICATION_SOUND_CACHE);
3026
3027        /**
3028         * Persistent store for the system-wide default alarm alert.
3029         *
3030         * @see #RINGTONE
3031         * @see #DEFAULT_ALARM_ALERT_URI
3032         */
3033        public static final String ALARM_ALERT = "alarm_alert";
3034
3035        private static final Validator ALARM_ALERT_VALIDATOR = sUriValidator;
3036
3037        /**
3038         * A {@link Uri} that will point to the current default alarm alert at
3039         * any given time.
3040         *
3041         * @see #DEFAULT_ALARM_ALERT_URI
3042         */
3043        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
3044
3045        /** {@hide} */
3046        public static final String ALARM_ALERT_CACHE = "alarm_alert_cache";
3047        /** {@hide} */
3048        public static final Uri ALARM_ALERT_CACHE_URI = getUriFor(ALARM_ALERT_CACHE);
3049
3050        /**
3051         * Persistent store for the system default media button event receiver.
3052         *
3053         * @hide
3054         */
3055        public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";
3056
3057        private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = new Validator() {
3058            @Override
3059            public boolean validate(String value) {
3060                try {
3061                    ComponentName.unflattenFromString(value);
3062                    return true;
3063                } catch (NullPointerException e) {
3064                    return false;
3065                }
3066            }
3067        };
3068
3069        /**
3070         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
3071         */
3072        public static final String TEXT_AUTO_REPLACE = "auto_replace";
3073
3074        private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = sBooleanValidator;
3075
3076        /**
3077         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
3078         */
3079        public static final String TEXT_AUTO_CAPS = "auto_caps";
3080
3081        private static final Validator TEXT_AUTO_CAPS_VALIDATOR = sBooleanValidator;
3082
3083        /**
3084         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
3085         * feature converts two spaces to a "." and space.
3086         */
3087        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
3088
3089        private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = sBooleanValidator;
3090
3091        /**
3092         * Setting to showing password characters in text editors. 1 = On, 0 = Off
3093         */
3094        public static final String TEXT_SHOW_PASSWORD = "show_password";
3095
3096        private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = sBooleanValidator;
3097
3098        public static final String SHOW_GTALK_SERVICE_STATUS =
3099                "SHOW_GTALK_SERVICE_STATUS";
3100
3101        private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = sBooleanValidator;
3102
3103        /**
3104         * Name of activity to use for wallpaper on the home screen.
3105         *
3106         * @deprecated Use {@link WallpaperManager} instead.
3107         */
3108        @Deprecated
3109        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
3110
3111        private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
3112            private static final int MAX_LENGTH = 1000;
3113
3114            @Override
3115            public boolean validate(String value) {
3116                if (value != null && value.length() > MAX_LENGTH) {
3117                    return false;
3118                }
3119                return ComponentName.unflattenFromString(value) != null;
3120            }
3121        };
3122
3123        /**
3124         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
3125         * instead
3126         */
3127        @Deprecated
3128        public static final String AUTO_TIME = Global.AUTO_TIME;
3129
3130        /**
3131         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
3132         * instead
3133         */
3134        @Deprecated
3135        public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;
3136
3137        /**
3138         * Display times as 12 or 24 hours
3139         *   12
3140         *   24
3141         */
3142        public static final String TIME_12_24 = "time_12_24";
3143
3144        /** @hide */
3145        public static final Validator TIME_12_24_VALIDATOR =
3146                new DiscreteValueValidator(new String[] {"12", "24"});
3147
3148        /**
3149         * Date format string
3150         *   mm/dd/yyyy
3151         *   dd/mm/yyyy
3152         *   yyyy/mm/dd
3153         */
3154        public static final String DATE_FORMAT = "date_format";
3155
3156        /** @hide */
3157        public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
3158            @Override
3159            public boolean validate(String value) {
3160                try {
3161                    new SimpleDateFormat(value);
3162                    return true;
3163                } catch (IllegalArgumentException e) {
3164                    return false;
3165                }
3166            }
3167        };
3168
3169        /**
3170         * Whether the setup wizard has been run before (on first boot), or if
3171         * it still needs to be run.
3172         *
3173         * nonzero = it has been run in the past
3174         * 0 = it has not been run in the past
3175         */
3176        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
3177
3178        /** @hide */
3179        public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = sBooleanValidator;
3180
3181        /**
3182         * Scaling factor for normal window animations. Setting to 0 will disable window
3183         * animations.
3184         *
3185         * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
3186         */
3187        @Deprecated
3188        public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;
3189
3190        /**
3191         * Scaling factor for activity transition animations. Setting to 0 will disable window
3192         * animations.
3193         *
3194         * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
3195         */
3196        @Deprecated
3197        public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;
3198
3199        /**
3200         * Scaling factor for Animator-based animations. This affects both the start delay and
3201         * duration of all such animations. Setting to 0 will cause animations to end immediately.
3202         * The default value is 1.
3203         *
3204         * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
3205         */
3206        @Deprecated
3207        public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;
3208
3209        /**
3210         * Control whether the accelerometer will be used to change screen
3211         * orientation.  If 0, it will not be used unless explicitly requested
3212         * by the application; if 1, it will be used by default unless explicitly
3213         * disabled by the application.
3214         */
3215        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
3216
3217        /** @hide */
3218        public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = sBooleanValidator;
3219
3220        /**
3221         * Default screen rotation when no other policy applies.
3222         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
3223         * preference, this rotation value will be used. Must be one of the
3224         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
3225         *
3226         * @see android.view.Display#getRotation
3227         */
3228        public static final String USER_ROTATION = "user_rotation";
3229
3230        /** @hide */
3231        public static final Validator USER_ROTATION_VALIDATOR =
3232                new InclusiveIntegerRangeValidator(0, 3);
3233
3234        /**
3235         * Control whether the rotation lock toggle in the System UI should be hidden.
3236         * Typically this is done for accessibility purposes to make it harder for
3237         * the user to accidentally toggle the rotation lock while the display rotation
3238         * has been locked for accessibility.
3239         *
3240         * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
3241         * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
3242         *
3243         * @hide
3244         */
3245        public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
3246                "hide_rotation_lock_toggle_for_accessibility";
3247
3248        /** @hide */
3249        public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
3250                sBooleanValidator;
3251
3252        /**
3253         * Whether the phone vibrates when it is ringing due to an incoming call. This will
3254         * be used by Phone and Setting apps; it shouldn't affect other apps.
3255         * The value is boolean (1 or 0).
3256         *
3257         * Note: this is not same as "vibrate on ring", which had been available until ICS.
3258         * It was about AudioManager's setting and thus affected all the applications which
3259         * relied on the setting, while this is purely about the vibration setting for incoming
3260         * calls.
3261         */
3262        public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";
3263
3264        /** @hide */
3265        public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = sBooleanValidator;
3266
3267        /**
3268         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
3269         * boolean (1 or 0).
3270         */
3271        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
3272
3273        /** @hide */
3274        public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3275
3276        /**
3277         * CDMA only settings
3278         * DTMF tone type played by the dialer when dialing.
3279         *                 0 = Normal
3280         *                 1 = Long
3281         */
3282        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
3283
3284        /** @hide */
3285        public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3286
3287        /**
3288         * Whether the hearing aid is enabled. The value is
3289         * boolean (1 or 0).
3290         * @hide
3291         */
3292        public static final String HEARING_AID = "hearing_aid";
3293
3294        /** @hide */
3295        public static final Validator HEARING_AID_VALIDATOR = sBooleanValidator;
3296
3297        /**
3298         * CDMA only settings
3299         * TTY Mode
3300         * 0 = OFF
3301         * 1 = FULL
3302         * 2 = VCO
3303         * 3 = HCO
3304         * @hide
3305         */
3306        public static final String TTY_MODE = "tty_mode";
3307
3308        /** @hide */
3309        public static final Validator TTY_MODE_VALIDATOR = new InclusiveIntegerRangeValidator(0, 3);
3310
3311        /**
3312         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
3313         * boolean (1 or 0).
3314         */
3315        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
3316
3317        /** @hide */
3318        public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = sBooleanValidator;
3319
3320        /**
3321         * Whether the haptic feedback (long presses, ...) are enabled. The value is
3322         * boolean (1 or 0).
3323         */
3324        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
3325
3326        /** @hide */
3327        public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = sBooleanValidator;
3328
3329        /**
3330         * @deprecated Each application that shows web suggestions should have its own
3331         * setting for this.
3332         */
3333        @Deprecated
3334        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
3335
3336        /** @hide */
3337        public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = sBooleanValidator;
3338
3339        /**
3340         * Whether the notification LED should repeatedly flash when a notification is
3341         * pending. The value is boolean (1 or 0).
3342         * @hide
3343         */
3344        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
3345
3346        /** @hide */
3347        public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = sBooleanValidator;
3348
3349        /**
3350         * Show pointer location on screen?
3351         * 0 = no
3352         * 1 = yes
3353         * @hide
3354         */
3355        public static final String POINTER_LOCATION = "pointer_location";
3356
3357        /** @hide */
3358        public static final Validator POINTER_LOCATION_VALIDATOR = sBooleanValidator;
3359
3360        /**
3361         * Show touch positions on screen?
3362         * 0 = no
3363         * 1 = yes
3364         * @hide
3365         */
3366        public static final String SHOW_TOUCHES = "show_touches";
3367
3368        /** @hide */
3369        public static final Validator SHOW_TOUCHES_VALIDATOR = sBooleanValidator;
3370
3371        /**
3372         * Log raw orientation data from
3373         * {@link com.android.server.policy.WindowOrientationListener} for use with the
3374         * orientationplot.py tool.
3375         * 0 = no
3376         * 1 = yes
3377         * @hide
3378         */
3379        public static final String WINDOW_ORIENTATION_LISTENER_LOG =
3380                "window_orientation_listener_log";
3381
3382        /** @hide */
3383        public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = sBooleanValidator;
3384
3385        /**
3386         * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
3387         * instead
3388         * @hide
3389         */
3390        @Deprecated
3391        public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;
3392
3393        /**
3394         * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
3395         * instead
3396         * @hide
3397         */
3398        @Deprecated
3399        public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;
3400
3401        /**
3402         * Whether to play sounds when the keyguard is shown and dismissed.
3403         * @hide
3404         */
3405        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
3406
3407        /** @hide */
3408        public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = sBooleanValidator;
3409
3410        /**
3411         * Whether the lockscreen should be completely disabled.
3412         * @hide
3413         */
3414        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
3415
3416        /** @hide */
3417        public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = sBooleanValidator;
3418
3419        /**
3420         * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
3421         * instead
3422         * @hide
3423         */
3424        @Deprecated
3425        public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;
3426
3427        /**
3428         * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
3429         * instead
3430         * @hide
3431         */
3432        @Deprecated
3433        public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;
3434
3435        /**
3436         * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
3437         * instead
3438         * @hide
3439         */
3440        @Deprecated
3441        public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;
3442
3443        /**
3444         * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
3445         * instead
3446         * @hide
3447         */
3448        @Deprecated
3449        public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;
3450
3451        /**
3452         * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
3453         * instead
3454         * @hide
3455         */
3456        @Deprecated
3457        public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;
3458
3459        /**
3460         * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
3461         * instead
3462         * @hide
3463         */
3464        @Deprecated
3465        public static final String LOCK_SOUND = Global.LOCK_SOUND;
3466
3467        /**
3468         * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
3469         * instead
3470         * @hide
3471         */
3472        @Deprecated
3473        public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;
3474
3475        /**
3476         * Receive incoming SIP calls?
3477         * 0 = no
3478         * 1 = yes
3479         * @hide
3480         */
3481        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
3482
3483        /** @hide */
3484        public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = sBooleanValidator;
3485
3486        /**
3487         * Call Preference String.
3488         * "SIP_ALWAYS" : Always use SIP with network access
3489         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
3490         * @hide
3491         */
3492        public static final String SIP_CALL_OPTIONS = "sip_call_options";
3493
3494        /** @hide */
3495        public static final Validator SIP_CALL_OPTIONS_VALIDATOR = new DiscreteValueValidator(
3496                new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});
3497
3498        /**
3499         * One of the sip call options: Always use SIP with network access.
3500         * @hide
3501         */
3502        public static final String SIP_ALWAYS = "SIP_ALWAYS";
3503
3504        /** @hide */
3505        public static final Validator SIP_ALWAYS_VALIDATOR = sBooleanValidator;
3506
3507        /**
3508         * One of the sip call options: Only if destination is a SIP address.
3509         * @hide
3510         */
3511        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
3512
3513        /** @hide */
3514        public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = sBooleanValidator;
3515
3516        /**
3517         * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
3518         * the user should be prompted each time a call is made whether it should be placed using
3519         * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
3520         * SIP_ADDRESS_ONLY.
3521         * @hide
3522         */
3523        @Deprecated
3524        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
3525
3526        /** @hide */
3527        public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = sBooleanValidator;
3528
3529        /**
3530         * Pointer speed setting.
3531         * This is an integer value in a range between -7 and +7, so there are 15 possible values.
3532         *   -7 = slowest
3533         *    0 = default speed
3534         *   +7 = fastest
3535         * @hide
3536         */
3537        public static final String POINTER_SPEED = "pointer_speed";
3538
3539        /** @hide */
3540        public static final Validator POINTER_SPEED_VALIDATOR =
3541                new InclusiveFloatRangeValidator(-7, 7);
3542
3543        /**
3544         * Whether lock-to-app will be triggered by long-press on recents.
3545         * @hide
3546         */
3547        public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";
3548
3549        /** @hide */
3550        public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = sBooleanValidator;
3551
3552        /**
3553         * I am the lolrus.
3554         * <p>
3555         * Nonzero values indicate that the user has a bukkit.
3556         * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
3557         * @hide
3558         */
3559        public static final String EGG_MODE = "egg_mode";
3560
3561        /** @hide */
3562        public static final Validator EGG_MODE_VALIDATOR = new Validator() {
3563            @Override
3564            public boolean validate(String value) {
3565                try {
3566                    return Long.parseLong(value) >= 0;
3567                } catch (NumberFormatException e) {
3568                    return false;
3569                }
3570            }
3571        };
3572
3573        /**
3574         * IMPORTANT: If you add a new public settings you also have to add it to
3575         * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
3576         * it to PRIVATE_SETTINGS below. Also add a validator that can validate
3577         * the setting value. See an example above.
3578         */
3579
3580        /**
3581         * Settings to backup. This is here so that it's in the same place as the settings
3582         * keys and easy to update.
3583         *
3584         * NOTE: Settings are backed up and restored in the order they appear
3585         *       in this array. If you have one setting depending on another,
3586         *       make sure that they are ordered appropriately.
3587         *
3588         * @hide
3589         */
3590        public static final String[] SETTINGS_TO_BACKUP = {
3591            STAY_ON_WHILE_PLUGGED_IN,   // moved to global
3592            WIFI_USE_STATIC_IP,
3593            WIFI_STATIC_IP,
3594            WIFI_STATIC_GATEWAY,
3595            WIFI_STATIC_NETMASK,
3596            WIFI_STATIC_DNS1,
3597            WIFI_STATIC_DNS2,
3598            BLUETOOTH_DISCOVERABILITY,
3599            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3600            FONT_SCALE,
3601            DIM_SCREEN,
3602            SCREEN_OFF_TIMEOUT,
3603            SCREEN_BRIGHTNESS,
3604            SCREEN_BRIGHTNESS_MODE,
3605            SCREEN_AUTO_BRIGHTNESS_ADJ,
3606            VIBRATE_INPUT_DEVICES,
3607            MODE_RINGER_STREAMS_AFFECTED,
3608            TEXT_AUTO_REPLACE,
3609            TEXT_AUTO_CAPS,
3610            TEXT_AUTO_PUNCTUATE,
3611            TEXT_SHOW_PASSWORD,
3612            AUTO_TIME,                  // moved to global
3613            AUTO_TIME_ZONE,             // moved to global
3614            TIME_12_24,
3615            DATE_FORMAT,
3616            DTMF_TONE_WHEN_DIALING,
3617            DTMF_TONE_TYPE_WHEN_DIALING,
3618            HEARING_AID,
3619            TTY_MODE,
3620            MASTER_MONO,
3621            SOUND_EFFECTS_ENABLED,
3622            HAPTIC_FEEDBACK_ENABLED,
3623            POWER_SOUNDS_ENABLED,       // moved to global
3624            DOCK_SOUNDS_ENABLED,        // moved to global
3625            LOCKSCREEN_SOUNDS_ENABLED,
3626            SHOW_WEB_SUGGESTIONS,
3627            SIP_CALL_OPTIONS,
3628            SIP_RECEIVE_CALLS,
3629            POINTER_SPEED,
3630            VIBRATE_WHEN_RINGING,
3631            RINGTONE,
3632            LOCK_TO_APP_ENABLED,
3633            NOTIFICATION_SOUND,
3634            ACCELEROMETER_ROTATION
3635        };
3636
3637        /**
3638         * These are all public system settings
3639         *
3640         * @hide
3641         */
3642        public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
3643        static {
3644            PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
3645            PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
3646            PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
3647            PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
3648            PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
3649            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
3650            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
3651            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
3652            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
3653            PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
3654            PUBLIC_SETTINGS.add(FONT_SCALE);
3655            PUBLIC_SETTINGS.add(DIM_SCREEN);
3656            PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
3657            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
3658            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
3659            PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
3660            PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
3661            PUBLIC_SETTINGS.add(VIBRATE_ON);
3662            PUBLIC_SETTINGS.add(VOLUME_RING);
3663            PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
3664            PUBLIC_SETTINGS.add(VOLUME_VOICE);
3665            PUBLIC_SETTINGS.add(VOLUME_MUSIC);
3666            PUBLIC_SETTINGS.add(VOLUME_ALARM);
3667            PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
3668            PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
3669            PUBLIC_SETTINGS.add(RINGTONE);
3670            PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
3671            PUBLIC_SETTINGS.add(ALARM_ALERT);
3672            PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
3673            PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
3674            PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
3675            PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
3676            PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
3677            PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
3678            PUBLIC_SETTINGS.add(TIME_12_24);
3679            PUBLIC_SETTINGS.add(DATE_FORMAT);
3680            PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
3681            PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
3682            PUBLIC_SETTINGS.add(USER_ROTATION);
3683            PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
3684            PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
3685            PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
3686            PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
3687            PUBLIC_SETTINGS.add(VIBRATE_WHEN_RINGING);
3688        }
3689
3690        /**
3691         * These are all hidden system settings.
3692         *
3693         * @hide
3694         */
3695        public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
3696        static {
3697            PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
3698            PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
3699            PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
3700            PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
3701            PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
3702            PRIVATE_SETTINGS.add(VOLUME_MASTER);
3703            PRIVATE_SETTINGS.add(MASTER_MONO);
3704            PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
3705            PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
3706            PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
3707            PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
3708            PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
3709            PRIVATE_SETTINGS.add(HEARING_AID);
3710            PRIVATE_SETTINGS.add(TTY_MODE);
3711            PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
3712            PRIVATE_SETTINGS.add(POINTER_LOCATION);
3713            PRIVATE_SETTINGS.add(SHOW_TOUCHES);
3714            PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
3715            PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
3716            PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
3717            PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
3718            PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
3719            PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
3720            PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
3721            PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
3722            PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
3723            PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
3724            PRIVATE_SETTINGS.add(LOCK_SOUND);
3725            PRIVATE_SETTINGS.add(UNLOCK_SOUND);
3726            PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
3727            PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
3728            PRIVATE_SETTINGS.add(SIP_ALWAYS);
3729            PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
3730            PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
3731            PRIVATE_SETTINGS.add(POINTER_SPEED);
3732            PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
3733            PRIVATE_SETTINGS.add(EGG_MODE);
3734        }
3735
3736        /**
3737         * These are all public system settings
3738         *
3739         * @hide
3740         */
3741        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
3742        static {
3743            VALIDATORS.put(END_BUTTON_BEHAVIOR,END_BUTTON_BEHAVIOR_VALIDATOR);
3744            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
3745            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
3746            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3747                    BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
3748            VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
3749            VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
3750            VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
3751            VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
3752            VALIDATORS.put(SCREEN_BRIGHTNESS, SCREEN_BRIGHTNESS_VALIDATOR);
3753            VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
3754            VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
3755            VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
3756            VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
3757            VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
3758            VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
3759            VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
3760            VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
3761            VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
3762            VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
3763            VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
3764            VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
3765            VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
3766            VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
3767            VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
3768            VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
3769            VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
3770            VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
3771            VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
3772            VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
3773            VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
3774            VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
3775            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
3776            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
3777            VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
3778            VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
3779            VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
3780            VALIDATORS.put(MASTER_MONO, MASTER_MONO_VALIDATOR);
3781            VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
3782            VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
3783            VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
3784            VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
3785                    HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
3786            VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
3787            VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
3788            VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
3789            VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
3790            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
3791            VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
3792            VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
3793            VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
3794                    WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
3795            VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
3796            VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
3797            VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
3798            VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
3799            VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
3800            VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
3801            VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
3802            VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
3803            VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
3804            VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
3805            VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
3806            VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
3807            VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
3808            VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
3809            VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
3810        }
3811
3812        /**
3813         * These entries are considered common between the personal and the managed profile,
3814         * since the managed profile doesn't get to change them.
3815         */
3816        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
3817        static {
3818            CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
3819            CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
3820            CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
3821            CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
3822            CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
3823        }
3824
3825        /** @hide */
3826        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
3827            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
3828        }
3829
3830        /**
3831         * When to use Wi-Fi calling
3832         *
3833         * @see android.telephony.TelephonyManager.WifiCallingChoices
3834         * @hide
3835         */
3836        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
3837
3838        // Settings moved to Settings.Secure
3839
3840        /**
3841         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
3842         * instead
3843         */
3844        @Deprecated
3845        public static final String ADB_ENABLED = Global.ADB_ENABLED;
3846
3847        /**
3848         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
3849         */
3850        @Deprecated
3851        public static final String ANDROID_ID = Secure.ANDROID_ID;
3852
3853        /**
3854         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
3855         */
3856        @Deprecated
3857        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
3858
3859        /**
3860         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
3861         */
3862        @Deprecated
3863        public static final String DATA_ROAMING = Global.DATA_ROAMING;
3864
3865        /**
3866         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
3867         */
3868        @Deprecated
3869        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
3870
3871        /**
3872         * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
3873         */
3874        @Deprecated
3875        public static final String HTTP_PROXY = Global.HTTP_PROXY;
3876
3877        /**
3878         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
3879         */
3880        @Deprecated
3881        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
3882
3883        /**
3884         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
3885         * instead
3886         */
3887        @Deprecated
3888        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
3889
3890        /**
3891         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
3892         */
3893        @Deprecated
3894        public static final String LOGGING_ID = Secure.LOGGING_ID;
3895
3896        /**
3897         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
3898         */
3899        @Deprecated
3900        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
3901
3902        /**
3903         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
3904         * instead
3905         */
3906        @Deprecated
3907        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
3908
3909        /**
3910         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
3911         * instead
3912         */
3913        @Deprecated
3914        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
3915
3916        /**
3917         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
3918         * instead
3919         */
3920        @Deprecated
3921        public static final String PARENTAL_CONTROL_REDIRECT_URL =
3922            Secure.PARENTAL_CONTROL_REDIRECT_URL;
3923
3924        /**
3925         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
3926         */
3927        @Deprecated
3928        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
3929
3930        /**
3931         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
3932         */
3933        @Deprecated
3934        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
3935
3936        /**
3937         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
3938         */
3939        @Deprecated
3940        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
3941
3942       /**
3943         * @deprecated Use
3944         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
3945         */
3946        @Deprecated
3947        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
3948
3949        /**
3950         * @deprecated Use
3951         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
3952         */
3953        @Deprecated
3954        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
3955                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
3956
3957        /**
3958         * @deprecated Use
3959         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
3960         */
3961        @Deprecated
3962        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
3963                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
3964
3965        /**
3966         * @deprecated Use
3967         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
3968         */
3969        @Deprecated
3970        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
3971                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
3972
3973        /**
3974         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
3975         * instead
3976         */
3977        @Deprecated
3978        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
3979
3980        /**
3981         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
3982         */
3983        @Deprecated
3984        public static final String WIFI_ON = Global.WIFI_ON;
3985
3986        /**
3987         * @deprecated Use
3988         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
3989         * instead
3990         */
3991        @Deprecated
3992        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
3993                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
3994
3995        /**
3996         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
3997         */
3998        @Deprecated
3999        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
4000
4001        /**
4002         * @deprecated Use
4003         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
4004         */
4005        @Deprecated
4006        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
4007                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
4008
4009        /**
4010         * @deprecated Use
4011         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
4012         */
4013        @Deprecated
4014        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
4015                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
4016
4017        /**
4018         * @deprecated Use
4019         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
4020         * instead
4021         */
4022        @Deprecated
4023        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
4024                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
4025
4026        /**
4027         * @deprecated Use
4028         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
4029         */
4030        @Deprecated
4031        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
4032            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
4033
4034        /**
4035         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
4036         * instead
4037         */
4038        @Deprecated
4039        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
4040
4041        /**
4042         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
4043         */
4044        @Deprecated
4045        public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;
4046
4047        /**
4048         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
4049         */
4050        @Deprecated
4051        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
4052
4053        /**
4054         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
4055         * instead
4056         */
4057        @Deprecated
4058        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
4059
4060        /**
4061         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
4062         * instead
4063         */
4064        @Deprecated
4065        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
4066            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
4067
4068        /**
4069         * Checks if the specified app can modify system settings. As of API
4070         * level 23, an app cannot modify system settings unless it declares the
4071         * {@link android.Manifest.permission#WRITE_SETTINGS}
4072         * permission in its manifest, <em>and</em> the user specifically grants
4073         * the app this capability. To prompt the user to grant this approval,
4074         * the app must send an intent with the action {@link
4075         * android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}, which causes
4076         * the system to display a permission management screen.
4077         *
4078         * @param context App context.
4079         * @return true if the calling app can write to system settings, false otherwise
4080         */
4081        public static boolean canWrite(Context context) {
4082            return isCallingPackageAllowedToWriteSettings(context, Process.myUid(),
4083                    context.getOpPackageName(), false);
4084        }
4085    }
4086
4087    /**
4088     * Secure system settings, containing system preferences that applications
4089     * can read but are not allowed to write.  These are for preferences that
4090     * the user must explicitly modify through the system UI or specialized
4091     * APIs for those values, not modified directly by applications.
4092     */
4093    public static final class Secure extends NameValueTable {
4094        /**
4095         * The content:// style URL for this table
4096         */
4097        public static final Uri CONTENT_URI =
4098            Uri.parse("content://" + AUTHORITY + "/secure");
4099
4100        // Populated lazily, guarded by class object:
4101        private static final NameValueCache sNameValueCache = new NameValueCache(
4102                CONTENT_URI,
4103                CALL_METHOD_GET_SECURE,
4104                CALL_METHOD_PUT_SECURE);
4105
4106        private static ILockSettings sLockSettings = null;
4107
4108        private static boolean sIsSystemProcess;
4109        private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
4110        private static final HashSet<String> MOVED_TO_GLOBAL;
4111        static {
4112            MOVED_TO_LOCK_SETTINGS = new HashSet<String>(3);
4113            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
4114            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
4115            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
4116
4117            MOVED_TO_GLOBAL = new HashSet<String>();
4118            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
4119            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
4120            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
4121            MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
4122            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
4123            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
4124            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
4125            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
4126            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
4127            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
4128            MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
4129            MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
4130            MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
4131            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
4132            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
4133            MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
4134            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
4135            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
4136            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
4137            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
4138            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
4139            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
4140            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
4141            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
4142            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
4143            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
4144            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
4145            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
4146            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
4147            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
4148            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
4149            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
4150            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
4151            MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
4152            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
4153            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
4154            MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
4155            MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
4156            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
4157            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
4158            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
4159            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
4160            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
4161            MOVED_TO_GLOBAL.add(Settings.Global.SAMPLING_PROFILER_MS);
4162            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
4163            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
4164            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
4165            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
4166            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
4167            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
4168            MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
4169            MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
4170            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
4171            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
4172            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
4173            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
4174            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
4175            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
4176            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4177            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
4178            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
4179            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
4180            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
4181            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
4182            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
4183            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
4184            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED);
4185            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
4186            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
4187            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
4188            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
4189            MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4190            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
4191            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
4192            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
4193            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
4194            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
4195            MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
4196            MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
4197            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
4198            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
4199            MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
4200            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
4201            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
4202            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
4203            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
4204            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
4205            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
4206            MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
4207            MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
4208            MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
4209            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
4210            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
4211            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
4212            MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
4213            MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
4214            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
4215            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
4216            MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
4217            MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
4218            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
4219            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
4220            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
4221            MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
4222            MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
4223            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
4224            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
4225            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
4226            MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
4227            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
4228            MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
4229            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
4230        }
4231
4232        /** @hide */
4233        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
4234            outKeySet.addAll(MOVED_TO_GLOBAL);
4235        }
4236
4237        /**
4238         * Look up a name in the database.
4239         * @param resolver to access the database with
4240         * @param name to look up in the table
4241         * @return the corresponding value, or null if not present
4242         */
4243        public static String getString(ContentResolver resolver, String name) {
4244            return getStringForUser(resolver, name, UserHandle.myUserId());
4245        }
4246
4247        /** @hide */
4248        public static String getStringForUser(ContentResolver resolver, String name,
4249                int userHandle) {
4250            if (MOVED_TO_GLOBAL.contains(name)) {
4251                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4252                        + " to android.provider.Settings.Global.");
4253                return Global.getStringForUser(resolver, name, userHandle);
4254            }
4255
4256            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
4257                synchronized (Secure.class) {
4258                    if (sLockSettings == null) {
4259                        sLockSettings = ILockSettings.Stub.asInterface(
4260                                (IBinder) ServiceManager.getService("lock_settings"));
4261                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
4262                    }
4263                }
4264                if (sLockSettings != null && !sIsSystemProcess) {
4265                    // No context; use the ActivityThread's context as an approximation for
4266                    // determining the target API level.
4267                    Application application = ActivityThread.currentApplication();
4268
4269                    boolean isPreMnc = application != null
4270                            && application.getApplicationInfo() != null
4271                            && application.getApplicationInfo().targetSdkVersion
4272                            <= VERSION_CODES.LOLLIPOP_MR1;
4273                    if (isPreMnc) {
4274                        try {
4275                            return sLockSettings.getString(name, "0", userHandle);
4276                        } catch (RemoteException re) {
4277                            // Fall through
4278                        }
4279                    } else {
4280                        throw new SecurityException("Settings.Secure." + name
4281                                + " is deprecated and no longer accessible."
4282                                + " See API documentation for potential replacements.");
4283                    }
4284                }
4285            }
4286
4287            return sNameValueCache.getStringForUser(resolver, name, userHandle);
4288        }
4289
4290        /**
4291         * Store a name/value pair into the database.
4292         * @param resolver to access the database with
4293         * @param name to store
4294         * @param value to associate with the name
4295         * @return true if the value was set, false on database errors
4296         */
4297        public static boolean putString(ContentResolver resolver, String name, String value) {
4298            return putStringForUser(resolver, name, value, UserHandle.myUserId());
4299        }
4300
4301        /** @hide */
4302        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
4303                int userHandle) {
4304            if (LOCATION_MODE.equals(name)) {
4305                // HACK ALERT: temporary hack to work around b/10491283.
4306                // TODO: once b/10491283 fixed, remove this hack
4307                return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
4308            }
4309            if (MOVED_TO_GLOBAL.contains(name)) {
4310                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
4311                        + " to android.provider.Settings.Global");
4312                return Global.putStringForUser(resolver, name, value, userHandle);
4313            }
4314            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
4315        }
4316
4317        /**
4318         * Construct the content URI for a particular name/value pair,
4319         * useful for monitoring changes with a ContentObserver.
4320         * @param name to look up in the table
4321         * @return the corresponding content URI, or null if not present
4322         */
4323        public static Uri getUriFor(String name) {
4324            if (MOVED_TO_GLOBAL.contains(name)) {
4325                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4326                        + " to android.provider.Settings.Global, returning global URI.");
4327                return Global.getUriFor(Global.CONTENT_URI, name);
4328            }
4329            return getUriFor(CONTENT_URI, name);
4330        }
4331
4332        /**
4333         * Convenience function for retrieving a single secure settings value
4334         * as an integer.  Note that internally setting values are always
4335         * stored as strings; this function converts the string to an integer
4336         * for you.  The default value will be returned if the setting is
4337         * not defined or not an integer.
4338         *
4339         * @param cr The ContentResolver to access.
4340         * @param name The name of the setting to retrieve.
4341         * @param def Value to return if the setting is not defined.
4342         *
4343         * @return The setting's current value, or 'def' if it is not defined
4344         * or not a valid integer.
4345         */
4346        public static int getInt(ContentResolver cr, String name, int def) {
4347            return getIntForUser(cr, name, def, UserHandle.myUserId());
4348        }
4349
4350        /** @hide */
4351        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
4352            if (LOCATION_MODE.equals(name)) {
4353                // HACK ALERT: temporary hack to work around b/10491283.
4354                // TODO: once b/10491283 fixed, remove this hack
4355                return getLocationModeForUser(cr, userHandle);
4356            }
4357            String v = getStringForUser(cr, name, userHandle);
4358            try {
4359                return v != null ? Integer.parseInt(v) : def;
4360            } catch (NumberFormatException e) {
4361                return def;
4362            }
4363        }
4364
4365        /**
4366         * Convenience function for retrieving a single secure settings value
4367         * as an integer.  Note that internally setting values are always
4368         * stored as strings; this function converts the string to an integer
4369         * for you.
4370         * <p>
4371         * This version does not take a default value.  If the setting has not
4372         * been set, or the string value is not a number,
4373         * it throws {@link SettingNotFoundException}.
4374         *
4375         * @param cr The ContentResolver to access.
4376         * @param name The name of the setting to retrieve.
4377         *
4378         * @throws SettingNotFoundException Thrown if a setting by the given
4379         * name can't be found or the setting value is not an integer.
4380         *
4381         * @return The setting's current value.
4382         */
4383        public static int getInt(ContentResolver cr, String name)
4384                throws SettingNotFoundException {
4385            return getIntForUser(cr, name, UserHandle.myUserId());
4386        }
4387
4388        /** @hide */
4389        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
4390                throws SettingNotFoundException {
4391            if (LOCATION_MODE.equals(name)) {
4392                // HACK ALERT: temporary hack to work around b/10491283.
4393                // TODO: once b/10491283 fixed, remove this hack
4394                return getLocationModeForUser(cr, userHandle);
4395            }
4396            String v = getStringForUser(cr, name, userHandle);
4397            try {
4398                return Integer.parseInt(v);
4399            } catch (NumberFormatException e) {
4400                throw new SettingNotFoundException(name);
4401            }
4402        }
4403
4404        /**
4405         * Convenience function for updating a single settings value as an
4406         * integer. This will either create a new entry in the table if the
4407         * given name does not exist, or modify the value of the existing row
4408         * with that name.  Note that internally setting values are always
4409         * stored as strings, so this function converts the given value to a
4410         * string before storing it.
4411         *
4412         * @param cr The ContentResolver to access.
4413         * @param name The name of the setting to modify.
4414         * @param value The new value for the setting.
4415         * @return true if the value was set, false on database errors
4416         */
4417        public static boolean putInt(ContentResolver cr, String name, int value) {
4418            return putIntForUser(cr, name, value, UserHandle.myUserId());
4419        }
4420
4421        /** @hide */
4422        public static boolean putIntForUser(ContentResolver cr, String name, int value,
4423                int userHandle) {
4424            return putStringForUser(cr, name, Integer.toString(value), userHandle);
4425        }
4426
4427        /**
4428         * Convenience function for retrieving a single secure settings value
4429         * as a {@code long}.  Note that internally setting values are always
4430         * stored as strings; this function converts the string to a {@code long}
4431         * for you.  The default value will be returned if the setting is
4432         * not defined or not a {@code long}.
4433         *
4434         * @param cr The ContentResolver to access.
4435         * @param name The name of the setting to retrieve.
4436         * @param def Value to return if the setting is not defined.
4437         *
4438         * @return The setting's current value, or 'def' if it is not defined
4439         * or not a valid {@code long}.
4440         */
4441        public static long getLong(ContentResolver cr, String name, long def) {
4442            return getLongForUser(cr, name, def, UserHandle.myUserId());
4443        }
4444
4445        /** @hide */
4446        public static long getLongForUser(ContentResolver cr, String name, long def,
4447                int userHandle) {
4448            String valString = getStringForUser(cr, name, userHandle);
4449            long value;
4450            try {
4451                value = valString != null ? Long.parseLong(valString) : def;
4452            } catch (NumberFormatException e) {
4453                value = def;
4454            }
4455            return value;
4456        }
4457
4458        /**
4459         * Convenience function for retrieving a single secure settings value
4460         * as a {@code long}.  Note that internally setting values are always
4461         * stored as strings; this function converts the string to a {@code long}
4462         * for you.
4463         * <p>
4464         * This version does not take a default value.  If the setting has not
4465         * been set, or the string value is not a number,
4466         * it throws {@link SettingNotFoundException}.
4467         *
4468         * @param cr The ContentResolver to access.
4469         * @param name The name of the setting to retrieve.
4470         *
4471         * @return The setting's current value.
4472         * @throws SettingNotFoundException Thrown if a setting by the given
4473         * name can't be found or the setting value is not an integer.
4474         */
4475        public static long getLong(ContentResolver cr, String name)
4476                throws SettingNotFoundException {
4477            return getLongForUser(cr, name, UserHandle.myUserId());
4478        }
4479
4480        /** @hide */
4481        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
4482                throws SettingNotFoundException {
4483            String valString = getStringForUser(cr, name, userHandle);
4484            try {
4485                return Long.parseLong(valString);
4486            } catch (NumberFormatException e) {
4487                throw new SettingNotFoundException(name);
4488            }
4489        }
4490
4491        /**
4492         * Convenience function for updating a secure settings value as a long
4493         * integer. This will either create a new entry in the table if the
4494         * given name does not exist, or modify the value of the existing row
4495         * with that name.  Note that internally setting values are always
4496         * stored as strings, so this function converts the given value to a
4497         * string before storing it.
4498         *
4499         * @param cr The ContentResolver to access.
4500         * @param name The name of the setting to modify.
4501         * @param value The new value for the setting.
4502         * @return true if the value was set, false on database errors
4503         */
4504        public static boolean putLong(ContentResolver cr, String name, long value) {
4505            return putLongForUser(cr, name, value, UserHandle.myUserId());
4506        }
4507
4508        /** @hide */
4509        public static boolean putLongForUser(ContentResolver cr, String name, long value,
4510                int userHandle) {
4511            return putStringForUser(cr, name, Long.toString(value), userHandle);
4512        }
4513
4514        /**
4515         * Convenience function for retrieving a single secure settings value
4516         * as a floating point number.  Note that internally setting values are
4517         * always stored as strings; this function converts the string to an
4518         * float for you. The default value will be returned if the setting
4519         * is not defined or not a valid float.
4520         *
4521         * @param cr The ContentResolver to access.
4522         * @param name The name of the setting to retrieve.
4523         * @param def Value to return if the setting is not defined.
4524         *
4525         * @return The setting's current value, or 'def' if it is not defined
4526         * or not a valid float.
4527         */
4528        public static float getFloat(ContentResolver cr, String name, float def) {
4529            return getFloatForUser(cr, name, def, UserHandle.myUserId());
4530        }
4531
4532        /** @hide */
4533        public static float getFloatForUser(ContentResolver cr, String name, float def,
4534                int userHandle) {
4535            String v = getStringForUser(cr, name, userHandle);
4536            try {
4537                return v != null ? Float.parseFloat(v) : def;
4538            } catch (NumberFormatException e) {
4539                return def;
4540            }
4541        }
4542
4543        /**
4544         * Convenience function for retrieving a single secure settings value
4545         * as a float.  Note that internally setting values are always
4546         * stored as strings; this function converts the string to a float
4547         * for you.
4548         * <p>
4549         * This version does not take a default value.  If the setting has not
4550         * been set, or the string value is not a number,
4551         * it throws {@link SettingNotFoundException}.
4552         *
4553         * @param cr The ContentResolver to access.
4554         * @param name The name of the setting to retrieve.
4555         *
4556         * @throws SettingNotFoundException Thrown if a setting by the given
4557         * name can't be found or the setting value is not a float.
4558         *
4559         * @return The setting's current value.
4560         */
4561        public static float getFloat(ContentResolver cr, String name)
4562                throws SettingNotFoundException {
4563            return getFloatForUser(cr, name, UserHandle.myUserId());
4564        }
4565
4566        /** @hide */
4567        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
4568                throws SettingNotFoundException {
4569            String v = getStringForUser(cr, name, userHandle);
4570            if (v == null) {
4571                throw new SettingNotFoundException(name);
4572            }
4573            try {
4574                return Float.parseFloat(v);
4575            } catch (NumberFormatException e) {
4576                throw new SettingNotFoundException(name);
4577            }
4578        }
4579
4580        /**
4581         * Convenience function for updating a single settings value as a
4582         * floating point number. This will either create a new entry in the
4583         * table if the given name does not exist, or modify the value of the
4584         * existing row with that name.  Note that internally setting values
4585         * are always stored as strings, so this function converts the given
4586         * value to a string before storing it.
4587         *
4588         * @param cr The ContentResolver to access.
4589         * @param name The name of the setting to modify.
4590         * @param value The new value for the setting.
4591         * @return true if the value was set, false on database errors
4592         */
4593        public static boolean putFloat(ContentResolver cr, String name, float value) {
4594            return putFloatForUser(cr, name, value, UserHandle.myUserId());
4595        }
4596
4597        /** @hide */
4598        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
4599                int userHandle) {
4600            return putStringForUser(cr, name, Float.toString(value), userHandle);
4601        }
4602
4603        /**
4604         * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
4605         * instead
4606         */
4607        @Deprecated
4608        public static final String DEVELOPMENT_SETTINGS_ENABLED =
4609                Global.DEVELOPMENT_SETTINGS_ENABLED;
4610
4611        /**
4612         * When the user has enable the option to have a "bug report" command
4613         * in the power menu.
4614         * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
4615         * @hide
4616         */
4617        @Deprecated
4618        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
4619
4620        /**
4621         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
4622         */
4623        @Deprecated
4624        public static final String ADB_ENABLED = Global.ADB_ENABLED;
4625
4626        /**
4627         * Setting to allow mock locations and location provider status to be injected into the
4628         * LocationManager service for testing purposes during application development.  These
4629         * locations and status values  override actual location and status information generated
4630         * by network, gps, or other location providers.
4631         *
4632         * @deprecated This settings is not used anymore.
4633         */
4634        @Deprecated
4635        public static final String ALLOW_MOCK_LOCATION = "mock_location";
4636
4637        /**
4638         * A 64-bit number (as a hex string) that is randomly
4639         * generated when the user first sets up the device and should remain
4640         * constant for the lifetime of the user's device. The value may
4641         * change if a factory reset is performed on the device.
4642         * <p class="note"><strong>Note:</strong> When a device has <a
4643         * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a>
4644         * (available on certain devices running Android 4.2 or higher), each user appears as a
4645         * completely separate device, so the {@code ANDROID_ID} value is unique to each
4646         * user.</p>
4647         */
4648        public static final String ANDROID_ID = "android_id";
4649
4650        /**
4651         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
4652         */
4653        @Deprecated
4654        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
4655
4656        /**
4657         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
4658         */
4659        @Deprecated
4660        public static final String DATA_ROAMING = Global.DATA_ROAMING;
4661
4662        /**
4663         * Setting to record the input method used by default, holding the ID
4664         * of the desired method.
4665         */
4666        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
4667
4668        /**
4669         * Setting to record the input method subtype used by default, holding the ID
4670         * of the desired method.
4671         */
4672        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
4673                "selected_input_method_subtype";
4674
4675        /**
4676         * Setting to record the history of input method subtype, holding the pair of ID of IME
4677         * and its last used subtype.
4678         * @hide
4679         */
4680        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
4681                "input_methods_subtype_history";
4682
4683        /**
4684         * Setting to record the visibility of input method selector
4685         */
4686        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
4687                "input_method_selector_visibility";
4688
4689        /**
4690         * The currently selected voice interaction service flattened ComponentName.
4691         * @hide
4692         */
4693        @TestApi
4694        public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";
4695
4696        /**
4697         * bluetooth HCI snoop log configuration
4698         * @hide
4699         */
4700        public static final String BLUETOOTH_HCI_LOG =
4701                "bluetooth_hci_log";
4702
4703        /**
4704         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
4705         */
4706        @Deprecated
4707        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
4708
4709        /**
4710         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
4711         * @hide
4712         */
4713        public static final String USER_SETUP_COMPLETE = "user_setup_complete";
4714
4715        /**
4716         * Prefix for category name that marks whether a suggested action from that category was
4717         * completed.
4718         * @hide
4719         */
4720        public static final String COMPLETED_CATEGORY_PREFIX = "suggested.completed_category.";
4721
4722        /**
4723         * List of input methods that are currently enabled.  This is a string
4724         * containing the IDs of all enabled input methods, each ID separated
4725         * by ':'.
4726         */
4727        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
4728
4729        /**
4730         * List of system input methods that are currently disabled.  This is a string
4731         * containing the IDs of all disabled input methods, each ID separated
4732         * by ':'.
4733         * @hide
4734         */
4735        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
4736
4737        /**
4738         * Whether to show the IME when a hard keyboard is connected. This is a boolean that
4739         * determines if the IME should be shown when a hard keyboard is attached.
4740         * @hide
4741         */
4742        public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";
4743
4744        /**
4745         * Host name and port for global http proxy. Uses ':' seperator for
4746         * between host and port.
4747         *
4748         * @deprecated Use {@link Global#HTTP_PROXY}
4749         */
4750        @Deprecated
4751        public static final String HTTP_PROXY = Global.HTTP_PROXY;
4752
4753        /**
4754         * Package designated as always-on VPN provider.
4755         *
4756         * @hide
4757         */
4758        public static final String ALWAYS_ON_VPN_APP = "always_on_vpn_app";
4759
4760        /**
4761         * Whether to block networking outside of VPN connections while always-on is set.
4762         * @see #ALWAYS_ON_VPN_APP
4763         *
4764         * @hide
4765         */
4766        public static final String ALWAYS_ON_VPN_LOCKDOWN = "always_on_vpn_lockdown";
4767
4768        /**
4769         * Whether applications can be installed for this user via the system's
4770         * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
4771         *
4772         * <p>1 = permit app installation via the system package installer intent
4773         * <p>0 = do not allow use of the package installer
4774         */
4775        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
4776
4777        /**
4778         * Comma-separated list of location providers that activities may access. Do not rely on
4779         * this value being present in settings.db or on ContentObserver notifications on the
4780         * corresponding Uri.
4781         *
4782         * @deprecated use {@link #LOCATION_MODE} and
4783         * {@link LocationManager#MODE_CHANGED_ACTION} (or
4784         * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
4785         */
4786        @Deprecated
4787        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
4788
4789        /**
4790         * The degree of location access enabled by the user.
4791         * <p>
4792         * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
4793         * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
4794         * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
4795         * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
4796         * modes that might be added in the future.
4797         * <p>
4798         * Note: do not rely on this value being present in settings.db or on ContentObserver
4799         * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
4800         * to receive changes in this value.
4801         */
4802        public static final String LOCATION_MODE = "location_mode";
4803        /**
4804         * Stores the previous location mode when {@link #LOCATION_MODE} is set to
4805         * {@link #LOCATION_MODE_OFF}
4806         * @hide
4807         */
4808        public static final String LOCATION_PREVIOUS_MODE = "location_previous_mode";
4809
4810        /**
4811         * Sets all location providers to the previous states before location was turned off.
4812         * @hide
4813         */
4814        public static final int LOCATION_MODE_PREVIOUS = -1;
4815        /**
4816         * Location access disabled.
4817         */
4818        public static final int LOCATION_MODE_OFF = 0;
4819        /**
4820         * Network Location Provider disabled, but GPS and other sensors enabled.
4821         */
4822        public static final int LOCATION_MODE_SENSORS_ONLY = 1;
4823        /**
4824         * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
4825         * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
4826         * {@link android.location.Criteria#POWER_MEDIUM}.
4827         */
4828        public static final int LOCATION_MODE_BATTERY_SAVING = 2;
4829        /**
4830         * Best-effort location computation allowed.
4831         */
4832        public static final int LOCATION_MODE_HIGH_ACCURACY = 3;
4833
4834        /**
4835         * A flag containing settings used for biometric weak
4836         * @hide
4837         */
4838        @Deprecated
4839        public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
4840                "lock_biometric_weak_flags";
4841
4842        /**
4843         * Whether lock-to-app will lock the keyguard when exiting.
4844         * @hide
4845         */
4846        public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";
4847
4848        /**
4849         * Whether autolock is enabled (0 = false, 1 = true)
4850         *
4851         * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
4852         *             level of the keyguard. Accessing this setting from an app that is targeting
4853         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4854         */
4855        @Deprecated
4856        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
4857
4858        /**
4859         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
4860         *
4861         * @deprecated Accessing this setting from an app that is targeting
4862         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4863         */
4864        @Deprecated
4865        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
4866
4867        /**
4868         * Whether lock pattern will vibrate as user enters (0 = false, 1 =
4869         * true)
4870         *
4871         * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
4872         *             lockscreen uses
4873         *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
4874         *             Accessing this setting from an app that is targeting
4875         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4876         */
4877        @Deprecated
4878        public static final String
4879                LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";
4880
4881        /**
4882         * This preference allows the device to be locked given time after screen goes off,
4883         * subject to current DeviceAdmin policy limits.
4884         * @hide
4885         */
4886        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
4887
4888
4889        /**
4890         * This preference contains the string that shows for owner info on LockScreen.
4891         * @hide
4892         * @deprecated
4893         */
4894        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
4895
4896        /**
4897         * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
4898         * @hide
4899         */
4900        @Deprecated
4901        public static final String LOCK_SCREEN_APPWIDGET_IDS =
4902            "lock_screen_appwidget_ids";
4903
4904        /**
4905         * Id of the appwidget shown on the lock screen when appwidgets are disabled.
4906         * @hide
4907         */
4908        @Deprecated
4909        public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
4910            "lock_screen_fallback_appwidget_id";
4911
4912        /**
4913         * Index of the lockscreen appwidget to restore, -1 if none.
4914         * @hide
4915         */
4916        @Deprecated
4917        public static final String LOCK_SCREEN_STICKY_APPWIDGET =
4918            "lock_screen_sticky_appwidget";
4919
4920        /**
4921         * This preference enables showing the owner info on LockScreen.
4922         * @hide
4923         * @deprecated
4924         */
4925        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
4926            "lock_screen_owner_info_enabled";
4927
4928        /**
4929         * When set by a user, allows notifications to be shown atop a securely locked screen
4930         * in their full "private" form (same as when the device is unlocked).
4931         * @hide
4932         */
4933        public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
4934                "lock_screen_allow_private_notifications";
4935
4936        /**
4937         * When set by a user, allows notification remote input atop a securely locked screen
4938         * without having to unlock
4939         * @hide
4940         */
4941        public static final String LOCK_SCREEN_ALLOW_REMOTE_INPUT =
4942                "lock_screen_allow_remote_input";
4943
4944        /**
4945         * Set by the system to track if the user needs to see the call to action for
4946         * the lockscreen notification policy.
4947         * @hide
4948         */
4949        public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
4950                "show_note_about_notification_hiding";
4951
4952        /**
4953         * Set to 1 by the system after trust agents have been initialized.
4954         * @hide
4955         */
4956        public static final String TRUST_AGENTS_INITIALIZED =
4957                "trust_agents_initialized";
4958
4959        /**
4960         * The Logging ID (a unique 64-bit value) as a hex string.
4961         * Used as a pseudonymous identifier for logging.
4962         * @deprecated This identifier is poorly initialized and has
4963         * many collisions.  It should not be used.
4964         */
4965        @Deprecated
4966        public static final String LOGGING_ID = "logging_id";
4967
4968        /**
4969         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
4970         */
4971        @Deprecated
4972        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
4973
4974        /**
4975         * No longer supported.
4976         */
4977        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
4978
4979        /**
4980         * No longer supported.
4981         */
4982        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
4983
4984        /**
4985         * No longer supported.
4986         */
4987        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
4988
4989        /**
4990         * Settings classname to launch when Settings is clicked from All
4991         * Applications.  Needed because of user testing between the old
4992         * and new Settings apps.
4993         */
4994        // TODO: 881807
4995        public static final String SETTINGS_CLASSNAME = "settings_classname";
4996
4997        /**
4998         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
4999         */
5000        @Deprecated
5001        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
5002
5003        /**
5004         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
5005         */
5006        @Deprecated
5007        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
5008
5009        /**
5010         * If accessibility is enabled.
5011         */
5012        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
5013
5014        /**
5015         * If touch exploration is enabled.
5016         */
5017        public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";
5018
5019        /**
5020         * List of the enabled accessibility providers.
5021         */
5022        public static final String ENABLED_ACCESSIBILITY_SERVICES =
5023            "enabled_accessibility_services";
5024
5025        /**
5026         * List of the accessibility services to which the user has granted
5027         * permission to put the device into touch exploration mode.
5028         *
5029         * @hide
5030         */
5031        public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
5032            "touch_exploration_granted_accessibility_services";
5033
5034        /**
5035         * Whether to speak passwords while in accessibility mode.
5036         */
5037        public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";
5038
5039        /**
5040         * Whether to draw text with high contrast while in accessibility mode.
5041         *
5042         * @hide
5043         */
5044        public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
5045                "high_text_contrast_enabled";
5046
5047        /**
5048         * If injection of accessibility enhancing JavaScript screen-reader
5049         * is enabled.
5050         * <p>
5051         *   Note: The JavaScript based screen-reader is served by the
5052         *   Google infrastructure and enable users with disabilities to
5053         *   efficiently navigate in and explore web content.
5054         * </p>
5055         * <p>
5056         *   This property represents a boolean value.
5057         * </p>
5058         * @hide
5059         */
5060        public static final String ACCESSIBILITY_SCRIPT_INJECTION =
5061            "accessibility_script_injection";
5062
5063        /**
5064         * The URL for the injected JavaScript based screen-reader used
5065         * for providing accessibility of content in WebView.
5066         * <p>
5067         *   Note: The JavaScript based screen-reader is served by the
5068         *   Google infrastructure and enable users with disabilities to
5069         *   efficiently navigate in and explore web content.
5070         * </p>
5071         * <p>
5072         *   This property represents a string value.
5073         * </p>
5074         * @hide
5075         */
5076        public static final String ACCESSIBILITY_SCREEN_READER_URL =
5077            "accessibility_script_injection_url";
5078
5079        /**
5080         * Key bindings for navigation in built-in accessibility support for web content.
5081         * <p>
5082         *   Note: These key bindings are for the built-in accessibility navigation for
5083         *   web content which is used as a fall back solution if JavaScript in a WebView
5084         *   is not enabled or the user has not opted-in script injection from Google.
5085         * </p>
5086         * <p>
5087         *   The bindings are separated by semi-colon. A binding is a mapping from
5088         *   a key to a sequence of actions (for more details look at
5089         *   android.webkit.AccessibilityInjector). A key is represented as the hexademical
5090         *   string representation of an integer obtained from a meta state (optional) shifted
5091         *   sixteen times left and bitwise ored with a key code. An action is represented
5092         *   as a hexademical string representation of an integer where the first two digits
5093         *   are navigation action index, the second, the third, and the fourth digit pairs
5094         *   represent the action arguments. The separate actions in a binding are colon
5095         *   separated. The key and the action sequence it maps to are separated by equals.
5096         * </p>
5097         * <p>
5098         *   For example, the binding below maps the DPAD right button to traverse the
5099         *   current navigation axis once without firing an accessibility event and to
5100         *   perform the same traversal again but to fire an event:
5101         *   <code>
5102         *     0x16=0x01000100:0x01000101;
5103         *   </code>
5104         * </p>
5105         * <p>
5106         *   The goal of this binding is to enable dynamic rebinding of keys to
5107         *   navigation actions for web content without requiring a framework change.
5108         * </p>
5109         * <p>
5110         *   This property represents a string value.
5111         * </p>
5112         * @hide
5113         */
5114        public static final String ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS =
5115            "accessibility_web_content_key_bindings";
5116
5117        /**
5118         * Setting that specifies whether the display magnification is enabled.
5119         * Display magnifications allows the user to zoom in the display content
5120         * and is targeted to low vision users. The current magnification scale
5121         * is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5122         *
5123         * @hide
5124         */
5125        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
5126                "accessibility_display_magnification_enabled";
5127
5128        /**
5129         * Setting that specifies what the display magnification scale is.
5130         * Display magnifications allows the user to zoom in the display
5131         * content and is targeted to low vision users. Whether a display
5132         * magnification is performed is controlled by
5133         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
5134         *
5135         * @hide
5136         */
5137        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
5138                "accessibility_display_magnification_scale";
5139
5140        /**
5141         * Setting that specifies whether the display magnification should be
5142         * automatically updated. If this fearture is enabled the system will
5143         * exit magnification mode or pan the viewport when a context change
5144         * occurs. For example, on staring a new activity or rotating the screen,
5145         * the system may zoom out so the user can see the new context he is in.
5146         * Another example is on showing a window that is not visible in the
5147         * magnified viewport the system may pan the viewport to make the window
5148         * the has popped up so the user knows that the context has changed.
5149         * Whether a screen magnification is performed is controlled by
5150         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
5151         *
5152         * @hide
5153         */
5154        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
5155                "accessibility_display_magnification_auto_update";
5156
5157        /**
5158         * Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
5159         * modified from an AccessibilityService using the SoftKeyboardController.
5160         *
5161         * @hide
5162         */
5163        public static final String ACCESSIBILITY_SOFT_KEYBOARD_MODE =
5164                "accessibility_soft_keyboard_mode";
5165
5166        /**
5167         * Default soft keyboard behavior.
5168         *
5169         * @hide
5170         */
5171        public static final int SHOW_MODE_AUTO = 0;
5172
5173        /**
5174         * Soft keyboard is never shown.
5175         *
5176         * @hide
5177         */
5178        public static final int SHOW_MODE_HIDDEN = 1;
5179
5180        /**
5181         * Setting that specifies whether timed text (captions) should be
5182         * displayed in video content. Text display properties are controlled by
5183         * the following settings:
5184         * <ul>
5185         * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
5186         * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
5187         * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
5188         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
5189         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
5190         * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
5191         * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
5192         * </ul>
5193         *
5194         * @hide
5195         */
5196        public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
5197                "accessibility_captioning_enabled";
5198
5199        /**
5200         * Setting that specifies the language for captions as a locale string,
5201         * e.g. en_US.
5202         *
5203         * @see java.util.Locale#toString
5204         * @hide
5205         */
5206        public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
5207                "accessibility_captioning_locale";
5208
5209        /**
5210         * Integer property that specifies the preset style for captions, one
5211         * of:
5212         * <ul>
5213         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
5214         * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
5215         * </ul>
5216         *
5217         * @see java.util.Locale#toString
5218         * @hide
5219         */
5220        public static final String ACCESSIBILITY_CAPTIONING_PRESET =
5221                "accessibility_captioning_preset";
5222
5223        /**
5224         * Integer property that specifes the background color for captions as a
5225         * packed 32-bit color.
5226         *
5227         * @see android.graphics.Color#argb
5228         * @hide
5229         */
5230        public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
5231                "accessibility_captioning_background_color";
5232
5233        /**
5234         * Integer property that specifes the foreground color for captions as a
5235         * packed 32-bit color.
5236         *
5237         * @see android.graphics.Color#argb
5238         * @hide
5239         */
5240        public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
5241                "accessibility_captioning_foreground_color";
5242
5243        /**
5244         * Integer property that specifes the edge type for captions, one of:
5245         * <ul>
5246         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
5247         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
5248         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
5249         * </ul>
5250         *
5251         * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
5252         * @hide
5253         */
5254        public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
5255                "accessibility_captioning_edge_type";
5256
5257        /**
5258         * Integer property that specifes the edge color for captions as a
5259         * packed 32-bit color.
5260         *
5261         * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
5262         * @see android.graphics.Color#argb
5263         * @hide
5264         */
5265        public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
5266                "accessibility_captioning_edge_color";
5267
5268        /**
5269         * Integer property that specifes the window color for captions as a
5270         * packed 32-bit color.
5271         *
5272         * @see android.graphics.Color#argb
5273         * @hide
5274         */
5275        public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
5276                "accessibility_captioning_window_color";
5277
5278        /**
5279         * String property that specifies the typeface for captions, one of:
5280         * <ul>
5281         * <li>DEFAULT
5282         * <li>MONOSPACE
5283         * <li>SANS_SERIF
5284         * <li>SERIF
5285         * </ul>
5286         *
5287         * @see android.graphics.Typeface
5288         * @hide
5289         */
5290        public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
5291                "accessibility_captioning_typeface";
5292
5293        /**
5294         * Floating point property that specifies font scaling for captions.
5295         *
5296         * @hide
5297         */
5298        public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
5299                "accessibility_captioning_font_scale";
5300
5301        /**
5302         * Setting that specifies whether display color inversion is enabled.
5303         */
5304        public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
5305                "accessibility_display_inversion_enabled";
5306
5307        /**
5308         * Setting that specifies whether display color space adjustment is
5309         * enabled.
5310         *
5311         * @hide
5312         */
5313        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
5314                "accessibility_display_daltonizer_enabled";
5315
5316        /**
5317         * Integer property that specifies the type of color space adjustment to
5318         * perform. Valid values are defined in AccessibilityManager.
5319         *
5320         * @hide
5321         */
5322        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
5323                "accessibility_display_daltonizer";
5324
5325        /**
5326         * Setting that specifies whether automatic click when the mouse pointer stops moving is
5327         * enabled.
5328         *
5329         * @hide
5330         */
5331        public static final String ACCESSIBILITY_AUTOCLICK_ENABLED =
5332                "accessibility_autoclick_enabled";
5333
5334        /**
5335         * Integer setting specifying amount of time in ms the mouse pointer has to stay still
5336         * before performing click when {@link #ACCESSIBILITY_AUTOCLICK_ENABLED} is set.
5337         *
5338         * @see #ACCESSIBILITY_AUTOCLICK_ENABLED
5339         * @hide
5340         */
5341        public static final String ACCESSIBILITY_AUTOCLICK_DELAY =
5342                "accessibility_autoclick_delay";
5343
5344        /**
5345         * Whether or not larger size icons are used for the pointer of mouse/trackpad for
5346         * accessibility.
5347         * (0 = false, 1 = true)
5348         * @hide
5349         */
5350        public static final String ACCESSIBILITY_LARGE_POINTER_ICON =
5351                "accessibility_large_pointer_icon";
5352
5353        /**
5354         * The timeout for considering a press to be a long press in milliseconds.
5355         * @hide
5356         */
5357        public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";
5358
5359        /**
5360         * List of the enabled print services.
5361         *
5362         * N and beyond uses {@link #DISABLED_PRINT_SERVICES}. But this might be used in an upgrade
5363         * from pre-N.
5364         *
5365         * @hide
5366         */
5367        public static final String ENABLED_PRINT_SERVICES =
5368            "enabled_print_services";
5369
5370        /**
5371         * List of the disabled print services.
5372         *
5373         * @hide
5374         */
5375        public static final String DISABLED_PRINT_SERVICES =
5376            "disabled_print_services";
5377
5378        /**
5379         * The saved value for WindowManagerService.setForcedDisplayDensity()
5380         * formatted as a single integer representing DPI. If unset, then use
5381         * the real display density.
5382         *
5383         * @hide
5384         */
5385        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";
5386
5387        /**
5388         * Setting to always use the default text-to-speech settings regardless
5389         * of the application settings.
5390         * 1 = override application settings,
5391         * 0 = use application settings (if specified).
5392         *
5393         * @deprecated  The value of this setting is no longer respected by
5394         * the framework text to speech APIs as of the Ice Cream Sandwich release.
5395         */
5396        @Deprecated
5397        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
5398
5399        /**
5400         * Default text-to-speech engine speech rate. 100 = 1x
5401         */
5402        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
5403
5404        /**
5405         * Default text-to-speech engine pitch. 100 = 1x
5406         */
5407        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
5408
5409        /**
5410         * Default text-to-speech engine.
5411         */
5412        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
5413
5414        /**
5415         * Default text-to-speech language.
5416         *
5417         * @deprecated this setting is no longer in use, as of the Ice Cream
5418         * Sandwich release. Apps should never need to read this setting directly,
5419         * instead can query the TextToSpeech framework classes for the default
5420         * locale. {@link TextToSpeech#getLanguage()}.
5421         */
5422        @Deprecated
5423        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
5424
5425        /**
5426         * Default text-to-speech country.
5427         *
5428         * @deprecated this setting is no longer in use, as of the Ice Cream
5429         * Sandwich release. Apps should never need to read this setting directly,
5430         * instead can query the TextToSpeech framework classes for the default
5431         * locale. {@link TextToSpeech#getLanguage()}.
5432         */
5433        @Deprecated
5434        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
5435
5436        /**
5437         * Default text-to-speech locale variant.
5438         *
5439         * @deprecated this setting is no longer in use, as of the Ice Cream
5440         * Sandwich release. Apps should never need to read this setting directly,
5441         * instead can query the TextToSpeech framework classes for the
5442         * locale that is in use {@link TextToSpeech#getLanguage()}.
5443         */
5444        @Deprecated
5445        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
5446
5447        /**
5448         * Stores the default tts locales on a per engine basis. Stored as
5449         * a comma seperated list of values, each value being of the form
5450         * {@code engine_name:locale} for example,
5451         * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
5452         * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
5453         * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
5454         * setting directly, and can query the TextToSpeech framework classes
5455         * for the locale that is in use.
5456         *
5457         * @hide
5458         */
5459        public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";
5460
5461        /**
5462         * Space delimited list of plugin packages that are enabled.
5463         */
5464        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
5465
5466        /**
5467         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
5468         * instead.
5469         */
5470        @Deprecated
5471        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
5472                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
5473
5474        /**
5475         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
5476         * instead.
5477         */
5478        @Deprecated
5479        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
5480                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
5481
5482        /**
5483         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
5484         * instead.
5485         */
5486        @Deprecated
5487        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
5488                Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
5489
5490        /**
5491         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
5492         * instead.
5493         */
5494        @Deprecated
5495        public static final String WIFI_ON = Global.WIFI_ON;
5496
5497        /**
5498         * The acceptable packet loss percentage (range 0 - 100) before trying
5499         * another AP on the same network.
5500         * @deprecated This setting is not used.
5501         */
5502        @Deprecated
5503        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
5504                "wifi_watchdog_acceptable_packet_loss_percentage";
5505
5506        /**
5507         * The number of access points required for a network in order for the
5508         * watchdog to monitor it.
5509         * @deprecated This setting is not used.
5510         */
5511        @Deprecated
5512        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
5513
5514        /**
5515         * The delay between background checks.
5516         * @deprecated This setting is not used.
5517         */
5518        @Deprecated
5519        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
5520                "wifi_watchdog_background_check_delay_ms";
5521
5522        /**
5523         * Whether the Wi-Fi watchdog is enabled for background checking even
5524         * after it thinks the user has connected to a good access point.
5525         * @deprecated This setting is not used.
5526         */
5527        @Deprecated
5528        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
5529                "wifi_watchdog_background_check_enabled";
5530
5531        /**
5532         * The timeout for a background ping
5533         * @deprecated This setting is not used.
5534         */
5535        @Deprecated
5536        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
5537                "wifi_watchdog_background_check_timeout_ms";
5538
5539        /**
5540         * The number of initial pings to perform that *may* be ignored if they
5541         * fail. Again, if these fail, they will *not* be used in packet loss
5542         * calculation. For example, one network always seemed to time out for
5543         * the first couple pings, so this is set to 3 by default.
5544         * @deprecated This setting is not used.
5545         */
5546        @Deprecated
5547        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
5548            "wifi_watchdog_initial_ignored_ping_count";
5549
5550        /**
5551         * The maximum number of access points (per network) to attempt to test.
5552         * If this number is reached, the watchdog will no longer monitor the
5553         * initial connection state for the network. This is a safeguard for
5554         * networks containing multiple APs whose DNS does not respond to pings.
5555         * @deprecated This setting is not used.
5556         */
5557        @Deprecated
5558        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
5559
5560        /**
5561         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
5562         */
5563        @Deprecated
5564        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
5565
5566        /**
5567         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
5568         * @deprecated This setting is not used.
5569         */
5570        @Deprecated
5571        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
5572
5573        /**
5574         * The number of pings to test if an access point is a good connection.
5575         * @deprecated This setting is not used.
5576         */
5577        @Deprecated
5578        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
5579
5580        /**
5581         * The delay between pings.
5582         * @deprecated This setting is not used.
5583         */
5584        @Deprecated
5585        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
5586
5587        /**
5588         * The timeout per ping.
5589         * @deprecated This setting is not used.
5590         */
5591        @Deprecated
5592        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
5593
5594        /**
5595         * @deprecated Use
5596         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
5597         */
5598        @Deprecated
5599        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
5600
5601        /**
5602         * @deprecated Use
5603         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
5604         */
5605        @Deprecated
5606        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
5607                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
5608
5609        /**
5610         * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
5611         * the receivers of the PendingIntent an opportunity to make a new network request before
5612         * the Network satisfying the request is potentially removed.
5613         *
5614         * @hide
5615         */
5616        public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
5617                "connectivity_release_pending_intent_delay_ms";
5618
5619        /**
5620         * Whether background data usage is allowed.
5621         *
5622         * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
5623         *             availability of background data depends on several
5624         *             combined factors. When background data is unavailable,
5625         *             {@link ConnectivityManager#getActiveNetworkInfo()} will
5626         *             now appear disconnected.
5627         */
5628        @Deprecated
5629        public static final String BACKGROUND_DATA = "background_data";
5630
5631        /**
5632         * Origins for which browsers should allow geolocation by default.
5633         * The value is a space-separated list of origins.
5634         */
5635        public static final String ALLOWED_GEOLOCATION_ORIGINS
5636                = "allowed_geolocation_origins";
5637
5638        /**
5639         * The preferred TTY mode     0 = TTy Off, CDMA default
5640         *                            1 = TTY Full
5641         *                            2 = TTY HCO
5642         *                            3 = TTY VCO
5643         * @hide
5644         */
5645        public static final String PREFERRED_TTY_MODE =
5646                "preferred_tty_mode";
5647
5648        /**
5649         * Whether the enhanced voice privacy mode is enabled.
5650         * 0 = normal voice privacy
5651         * 1 = enhanced voice privacy
5652         * @hide
5653         */
5654        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
5655
5656        /**
5657         * Whether the TTY mode mode is enabled.
5658         * 0 = disabled
5659         * 1 = enabled
5660         * @hide
5661         */
5662        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
5663
5664        /**
5665         * Controls whether settings backup is enabled.
5666         * Type: int ( 0 = disabled, 1 = enabled )
5667         * @hide
5668         */
5669        public static final String BACKUP_ENABLED = "backup_enabled";
5670
5671        /**
5672         * Controls whether application data is automatically restored from backup
5673         * at install time.
5674         * Type: int ( 0 = disabled, 1 = enabled )
5675         * @hide
5676         */
5677        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
5678
5679        /**
5680         * Indicates whether settings backup has been fully provisioned.
5681         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
5682         * @hide
5683         */
5684        public static final String BACKUP_PROVISIONED = "backup_provisioned";
5685
5686        /**
5687         * Component of the transport to use for backup/restore.
5688         * @hide
5689         */
5690        public static final String BACKUP_TRANSPORT = "backup_transport";
5691
5692        /**
5693         * Version for which the setup wizard was last shown.  Bumped for
5694         * each release when there is new setup information to show.
5695         * @hide
5696         */
5697        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
5698
5699        /**
5700         * The interval in milliseconds after which Wi-Fi is considered idle.
5701         * When idle, it is possible for the device to be switched from Wi-Fi to
5702         * the mobile data network.
5703         * @hide
5704         * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
5705         * instead.
5706         */
5707        @Deprecated
5708        public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;
5709
5710        /**
5711         * The global search provider chosen by the user (if multiple global
5712         * search providers are installed). This will be the provider returned
5713         * by {@link SearchManager#getGlobalSearchActivity()} if it's still
5714         * installed. This setting is stored as a flattened component name as
5715         * per {@link ComponentName#flattenToString()}.
5716         *
5717         * @hide
5718         */
5719        public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
5720                "search_global_search_activity";
5721
5722        /**
5723         * The number of promoted sources in GlobalSearch.
5724         * @hide
5725         */
5726        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
5727        /**
5728         * The maximum number of suggestions returned by GlobalSearch.
5729         * @hide
5730         */
5731        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
5732        /**
5733         * The number of suggestions GlobalSearch will ask each non-web search source for.
5734         * @hide
5735         */
5736        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
5737        /**
5738         * The number of suggestions the GlobalSearch will ask the web search source for.
5739         * @hide
5740         */
5741        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
5742                "search_web_results_override_limit";
5743        /**
5744         * The number of milliseconds that GlobalSearch will wait for suggestions from
5745         * promoted sources before continuing with all other sources.
5746         * @hide
5747         */
5748        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
5749                "search_promoted_source_deadline_millis";
5750        /**
5751         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
5752         * @hide
5753         */
5754        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
5755        /**
5756         * The maximum number of milliseconds that GlobalSearch shows the previous results
5757         * after receiving a new query.
5758         * @hide
5759         */
5760        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
5761        /**
5762         * The maximum age of log data used for shortcuts in GlobalSearch.
5763         * @hide
5764         */
5765        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
5766        /**
5767         * The maximum age of log data used for source ranking in GlobalSearch.
5768         * @hide
5769         */
5770        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
5771                "search_max_source_event_age_millis";
5772        /**
5773         * The minimum number of impressions needed to rank a source in GlobalSearch.
5774         * @hide
5775         */
5776        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
5777                "search_min_impressions_for_source_ranking";
5778        /**
5779         * The minimum number of clicks needed to rank a source in GlobalSearch.
5780         * @hide
5781         */
5782        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
5783                "search_min_clicks_for_source_ranking";
5784        /**
5785         * The maximum number of shortcuts shown by GlobalSearch.
5786         * @hide
5787         */
5788        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
5789        /**
5790         * The size of the core thread pool for suggestion queries in GlobalSearch.
5791         * @hide
5792         */
5793        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
5794                "search_query_thread_core_pool_size";
5795        /**
5796         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
5797         * @hide
5798         */
5799        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
5800                "search_query_thread_max_pool_size";
5801        /**
5802         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
5803         * @hide
5804         */
5805        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
5806                "search_shortcut_refresh_core_pool_size";
5807        /**
5808         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
5809         * @hide
5810         */
5811        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
5812                "search_shortcut_refresh_max_pool_size";
5813        /**
5814         * The maximun time that excess threads in the GlobalSeach thread pools will
5815         * wait before terminating.
5816         * @hide
5817         */
5818        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
5819                "search_thread_keepalive_seconds";
5820        /**
5821         * The maximum number of concurrent suggestion queries to each source.
5822         * @hide
5823         */
5824        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
5825                "search_per_source_concurrent_query_limit";
5826
5827        /**
5828         * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
5829         * @hide
5830         */
5831        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
5832
5833        /**
5834         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
5835         * @hide
5836         */
5837        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
5838
5839        /**
5840         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
5841         * @hide
5842         */
5843        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
5844
5845        /**
5846         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
5847         * @hide
5848         */
5849        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
5850
5851        /**
5852         * If nonzero, ANRs in invisible background processes bring up a dialog.
5853         * Otherwise, the process will be silently killed.
5854         *
5855         * Also prevents ANRs and crash dialogs from being suppressed.
5856         * @hide
5857         */
5858        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
5859
5860        /**
5861         * The {@link ComponentName} string of the service to be used as the voice recognition
5862         * service.
5863         *
5864         * @hide
5865         */
5866        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
5867
5868        /**
5869         * Stores whether an user has consented to have apps verified through PAM.
5870         * The value is boolean (1 or 0).
5871         *
5872         * @hide
5873         */
5874        public static final String PACKAGE_VERIFIER_USER_CONSENT =
5875            "package_verifier_user_consent";
5876
5877        /**
5878         * The {@link ComponentName} string of the selected spell checker service which is
5879         * one of the services managed by the text service manager.
5880         *
5881         * @hide
5882         */
5883        public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";
5884
5885        /**
5886         * The {@link ComponentName} string of the selected subtype of the selected spell checker
5887         * service which is one of the services managed by the text service manager.
5888         *
5889         * @hide
5890         */
5891        public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
5892                "selected_spell_checker_subtype";
5893
5894        /**
5895         * The {@link ComponentName} string whether spell checker is enabled or not.
5896         *
5897         * @hide
5898         */
5899        public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";
5900
5901        /**
5902         * What happens when the user presses the Power button while in-call
5903         * and the screen is on.<br/>
5904         * <b>Values:</b><br/>
5905         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
5906         * 2 - The Power button hangs up the current call.<br/>
5907         *
5908         * @hide
5909         */
5910        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
5911
5912        /**
5913         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
5914         * @hide
5915         */
5916        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
5917
5918        /**
5919         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
5920         * @hide
5921         */
5922        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
5923
5924        /**
5925         * INCALL_POWER_BUTTON_BEHAVIOR default value.
5926         * @hide
5927         */
5928        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
5929                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
5930
5931        /**
5932         * Whether the device should wake when the wake gesture sensor detects motion.
5933         * @hide
5934         */
5935        public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";
5936
5937        /**
5938         * Whether the device should doze if configured.
5939         * @hide
5940         */
5941        public static final String DOZE_ENABLED = "doze_enabled";
5942
5943        /**
5944         * Whether the device should pulse on pick up gesture.
5945         * @hide
5946         */
5947        public static final String DOZE_PULSE_ON_PICK_UP = "doze_pulse_on_pick_up";
5948
5949        /**
5950         * Whether the device should pulse on double tap gesture.
5951         * @hide
5952         */
5953        public static final String DOZE_PULSE_ON_DOUBLE_TAP = "doze_pulse_on_double_tap";
5954
5955        /**
5956         * The current night mode that has been selected by the user.  Owned
5957         * and controlled by UiModeManagerService.  Constants are as per
5958         * UiModeManager.
5959         * @hide
5960         */
5961        public static final String UI_NIGHT_MODE = "ui_night_mode";
5962
5963        /**
5964         * Whether screensavers are enabled.
5965         * @hide
5966         */
5967        public static final String SCREENSAVER_ENABLED = "screensaver_enabled";
5968
5969        /**
5970         * The user's chosen screensaver components.
5971         *
5972         * These will be launched by the PhoneWindowManager after a timeout when not on
5973         * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
5974         * @hide
5975         */
5976        public static final String SCREENSAVER_COMPONENTS = "screensaver_components";
5977
5978        /**
5979         * If screensavers are enabled, whether the screensaver should be automatically launched
5980         * when the device is inserted into a (desk) dock.
5981         * @hide
5982         */
5983        public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";
5984
5985        /**
5986         * If screensavers are enabled, whether the screensaver should be automatically launched
5987         * when the screen times out when not on battery.
5988         * @hide
5989         */
5990        public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";
5991
5992        /**
5993         * If screensavers are enabled, the default screensaver component.
5994         * @hide
5995         */
5996        public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";
5997
5998        /**
5999         * The default NFC payment component
6000         * @hide
6001         */
6002        public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";
6003
6004        /**
6005         * Whether NFC payment is handled by the foreground application or a default.
6006         * @hide
6007         */
6008        public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";
6009
6010        /**
6011         * Specifies the package name currently configured to be the primary sms application
6012         * @hide
6013         */
6014        public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";
6015
6016        /**
6017         * Specifies the package name currently configured to be the default dialer application
6018         * @hide
6019         */
6020        public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";
6021
6022        /**
6023         * Specifies the package name currently configured to be the emergency assistance application
6024         *
6025         * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
6026         *
6027         * @hide
6028         */
6029        public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";
6030
6031        /**
6032         * Specifies whether the current app context on scren (assist data) will be sent to the
6033         * assist application (active voice interaction service).
6034         *
6035         * @hide
6036         */
6037        public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";
6038
6039        /**
6040         * Specifies whether a screenshot of the screen contents will be sent to the assist
6041         * application (active voice interaction service).
6042         *
6043         * @hide
6044         */
6045        public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";
6046
6047        /**
6048         * Specifies whether the screen will show an animation if screen contents are sent to the
6049         * assist application (active voice interaction service).
6050         *
6051         * Note that the disclosure will be forced for third-party assistants or if the device
6052         * does not support disabling it.
6053         *
6054         * @hide
6055         */
6056        public static final String ASSIST_DISCLOSURE_ENABLED = "assist_disclosure_enabled";
6057
6058        /**
6059         * Names of the service components that the current user has explicitly allowed to
6060         * see all of the user's notifications, separated by ':'.
6061         *
6062         * @hide
6063         */
6064        public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
6065
6066        /**
6067         * Names of the packages that the current user has explicitly allowed to
6068         * manage notification policy configuration, separated by ':'.
6069         *
6070         * @hide
6071         */
6072        @TestApi
6073        public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
6074                "enabled_notification_policy_access_packages";
6075
6076        /** @hide */
6077        public static final String BAR_SERVICE_COMPONENT = "bar_service_component";
6078
6079        /** @hide */
6080        public static final String VOLUME_CONTROLLER_SERVICE_COMPONENT
6081                = "volume_controller_service_component";
6082
6083        /** @hide */
6084        public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";
6085
6086        /**
6087         * This is the query URI for finding a print service to install.
6088         *
6089         * @hide
6090         */
6091        public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";
6092
6093        /**
6094         * This is the query URI for finding a NFC payment service to install.
6095         *
6096         * @hide
6097         */
6098        public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";
6099
6100        /**
6101         * If enabled, apps should try to skip any introductory hints on first launch. This might
6102         * apply to users that are already familiar with the environment or temporary users.
6103         * <p>
6104         * Type : int (0 to show hints, 1 to skip showing hints)
6105         */
6106        public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";
6107
6108        /**
6109         * Persisted playback time after a user confirmation of an unsafe volume level.
6110         *
6111         * @hide
6112         */
6113        public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";
6114
6115        /**
6116         * This preference enables notification display on the lockscreen.
6117         * @hide
6118         */
6119        public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
6120                "lock_screen_show_notifications";
6121
6122        /**
6123         * List of TV inputs that are currently hidden. This is a string
6124         * containing the IDs of all hidden TV inputs. Each ID is encoded by
6125         * {@link android.net.Uri#encode(String)} and separated by ':'.
6126         * @hide
6127         */
6128        public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";
6129
6130        /**
6131         * List of custom TV input labels. This is a string containing <TV input id, custom name>
6132         * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
6133         * and separated by ','. Each pair is separated by ':'.
6134         * @hide
6135         */
6136        public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";
6137
6138        /**
6139         * Whether automatic routing of system audio to USB audio peripheral is disabled.
6140         * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
6141         * and 0 means automatic routing is enabled.
6142         *
6143         * @hide
6144         */
6145        public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
6146                "usb_audio_automatic_routing_disabled";
6147
6148        /**
6149         * The timeout in milliseconds before the device fully goes to sleep after
6150         * a period of inactivity.  This value sets an upper bound on how long the device
6151         * will stay awake or dreaming without user activity.  It should generally
6152         * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
6153         * will sleep before it ever has a chance to dream.
6154         * <p>
6155         * Use -1 to disable this timeout.
6156         * </p>
6157         *
6158         * @hide
6159         */
6160        public static final String SLEEP_TIMEOUT = "sleep_timeout";
6161
6162        /**
6163         * Controls whether double tap to wake is enabled.
6164         * @hide
6165         */
6166        public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";
6167
6168        /**
6169         * The current assistant component. It could be a voice interaction service,
6170         * or an activity that handles ACTION_ASSIST, or empty which means using the default
6171         * handling.
6172         *
6173         * @hide
6174         */
6175        public static final String ASSISTANT = "assistant";
6176
6177        /**
6178         * Whether the camera launch gesture should be disabled.
6179         *
6180         * @hide
6181         */
6182        public static final String CAMERA_GESTURE_DISABLED = "camera_gesture_disabled";
6183
6184        /**
6185         * Whether the camera launch gesture to double tap the power button when the screen is off
6186         * should be disabled.
6187         *
6188         * @hide
6189         */
6190        public static final String CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED =
6191                "camera_double_tap_power_gesture_disabled";
6192
6193        /**
6194         * Whether the camera double twist gesture to flip between front and back mode should be
6195         * enabled.
6196         *
6197         * @hide
6198         */
6199        public static final String CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED =
6200                "camera_double_twist_to_flip_enabled";
6201
6202        /**
6203         * Control whether Night display is currently activated.
6204         * @hide
6205         */
6206        public static final String NIGHT_DISPLAY_ACTIVATED = "night_display_activated";
6207
6208        /**
6209         * Control whether Night display will automatically activate/deactivate.
6210         * @hide
6211         */
6212        public static final String NIGHT_DISPLAY_AUTO_MODE = "night_display_auto_mode";
6213
6214        /**
6215         * Custom time when Night display is scheduled to activate.
6216         * Represented as milliseconds from midnight (e.g. 79200000 == 10pm).
6217         * @hide
6218         */
6219        public static final String NIGHT_DISPLAY_CUSTOM_START_TIME = "night_display_custom_start_time";
6220
6221        /**
6222         * Custom time when Night display is scheduled to deactivate.
6223         * Represented as milliseconds from midnight (e.g. 21600000 == 6am).
6224         * @hide
6225         */
6226        public static final String NIGHT_DISPLAY_CUSTOM_END_TIME = "night_display_custom_end_time";
6227
6228        /**
6229         * Whether brightness should automatically adjust based on twilight state.
6230         * @hide
6231         */
6232        public static final String BRIGHTNESS_USE_TWILIGHT = "brightness_use_twilight";
6233
6234        /**
6235         * Names of the service components that the current user has explicitly allowed to
6236         * be a VR mode listener, separated by ':'.
6237         *
6238         * @hide
6239         */
6240        public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners";
6241
6242        /**
6243         * Behavior of the display while in VR mode.
6244         *
6245         * One of {@link #VR_DISPLAY_MODE_LOW_PERSISTENCE} or {@link #VR_DISPLAY_MODE_OFF}.
6246         *
6247         * @hide
6248         */
6249        public static final String VR_DISPLAY_MODE = "vr_display_mode";
6250
6251        /**
6252         * Lower the display persistence while the system is in VR mode.
6253         *
6254         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6255         *
6256         * @hide.
6257         */
6258        public static final int VR_DISPLAY_MODE_LOW_PERSISTENCE = 0;
6259
6260        /**
6261         * Do not alter the display persistence while the system is in VR mode.
6262         *
6263         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6264         *
6265         * @hide.
6266         */
6267        public static final int VR_DISPLAY_MODE_OFF = 1;
6268
6269        /**
6270         * Whether CarrierAppUtils#disableCarrierAppsUntilPrivileged has been executed at least
6271         * once.
6272         *
6273         * <p>This is used to ensure that we only take one pass which will disable apps that are not
6274         * privileged (if any). From then on, we only want to enable apps (when a matching SIM is
6275         * inserted), to avoid disabling an app that the user might actively be using.
6276         *
6277         * <p>Will be set to 1 once executed.
6278         *
6279         * @hide
6280         */
6281        public static final String CARRIER_APPS_HANDLED = "carrier_apps_handled";
6282
6283        /**
6284         * Whether parent user can access remote contact in managed profile.
6285         *
6286         * @hide
6287         */
6288        public static final String MANAGED_PROFILE_CONTACT_REMOTE_SEARCH =
6289                "managed_profile_contact_remote_search";
6290
6291        /**
6292         * Whether or not the automatic storage manager is enabled and should run on the device.
6293         *
6294         * @hide
6295         */
6296        public static final String AUTOMATIC_STORAGE_MANAGER_ENABLED =
6297                "automatic_storage_manager_enabled";
6298
6299        /**
6300         * How many days of information for the automatic storage manager to retain on the device.
6301         *
6302         * @hide
6303         */
6304        public static final String AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN =
6305                "automatic_storage_manager_days_to_retain";
6306
6307        /**
6308         * Default number of days of information for the automatic storage manager to retain.
6309         *
6310         * @hide
6311         */
6312        public static final int AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_DEFAULT = 90;
6313
6314        /**
6315         * How many bytes the automatic storage manager has cleared out.
6316         *
6317         * @hide
6318         */
6319        public static final String AUTOMATIC_STORAGE_MANAGER_BYTES_CLEARED =
6320                "automatic_storage_manager_bytes_cleared";
6321
6322
6323        /**
6324         * Last run time for the automatic storage manager.
6325         *
6326         * @hide
6327         */
6328        public static final String AUTOMATIC_STORAGE_MANAGER_LAST_RUN =
6329                "automatic_storage_manager_last_run";
6330
6331
6332        /**
6333         * Whether SystemUI navigation keys is enabled.
6334         * @hide
6335         */
6336        public static final String SYSTEM_NAVIGATION_KEYS_ENABLED =
6337                "system_navigation_keys_enabled";
6338
6339        /**
6340         * Holds comma separated list of ordering of QS tiles.
6341         * @hide
6342         */
6343        public static final String QS_TILES = "sysui_qs_tiles";
6344
6345        /**
6346         * Whether preloaded APKs have been installed for the user.
6347         * @hide
6348         */
6349        public static final String DEMO_USER_SETUP_COMPLETE
6350                = "demo_user_setup_complete";
6351
6352        /**
6353         * Specifies whether the web action API is enabled.
6354         *
6355         * @hide
6356         */
6357        public static final String WEB_ACTION_ENABLED = "web_action_enabled";
6358
6359        /**
6360         * This are the settings to be backed up.
6361         *
6362         * NOTE: Settings are backed up and restored in the order they appear
6363         *       in this array. If you have one setting depending on another,
6364         *       make sure that they are ordered appropriately.
6365         *
6366         * @hide
6367         */
6368        public static final String[] SETTINGS_TO_BACKUP = {
6369            BUGREPORT_IN_POWER_MENU,                            // moved to global
6370            ALLOW_MOCK_LOCATION,
6371            PARENTAL_CONTROL_ENABLED,
6372            PARENTAL_CONTROL_REDIRECT_URL,
6373            USB_MASS_STORAGE_ENABLED,                           // moved to global
6374            ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
6375            ACCESSIBILITY_DISPLAY_DALTONIZER,
6376            ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
6377            ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
6378            ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
6379            ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE,
6380            ACCESSIBILITY_SCRIPT_INJECTION,
6381            ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS,
6382            ENABLED_ACCESSIBILITY_SERVICES,
6383            ENABLED_NOTIFICATION_LISTENERS,
6384            ENABLED_VR_LISTENERS,
6385            ENABLED_INPUT_METHODS,
6386            TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
6387            TOUCH_EXPLORATION_ENABLED,
6388            ACCESSIBILITY_ENABLED,
6389            ACCESSIBILITY_SPEAK_PASSWORD,
6390            ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
6391            ACCESSIBILITY_CAPTIONING_PRESET,
6392            ACCESSIBILITY_CAPTIONING_ENABLED,
6393            ACCESSIBILITY_CAPTIONING_LOCALE,
6394            ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
6395            ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
6396            ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
6397            ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
6398            ACCESSIBILITY_CAPTIONING_TYPEFACE,
6399            ACCESSIBILITY_CAPTIONING_FONT_SCALE,
6400            ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
6401            TTS_USE_DEFAULTS,
6402            TTS_DEFAULT_RATE,
6403            TTS_DEFAULT_PITCH,
6404            TTS_DEFAULT_SYNTH,
6405            TTS_DEFAULT_LANG,
6406            TTS_DEFAULT_COUNTRY,
6407            TTS_ENABLED_PLUGINS,
6408            TTS_DEFAULT_LOCALE,
6409            SHOW_IME_WITH_HARD_KEYBOARD,
6410            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
6411            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
6412            WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
6413            SELECTED_SPELL_CHECKER,
6414            SELECTED_SPELL_CHECKER_SUBTYPE,
6415            SPELL_CHECKER_ENABLED,
6416            MOUNT_PLAY_NOTIFICATION_SND,
6417            MOUNT_UMS_AUTOSTART,
6418            MOUNT_UMS_PROMPT,
6419            MOUNT_UMS_NOTIFY_ENABLED,
6420            SLEEP_TIMEOUT,
6421            DOUBLE_TAP_TO_WAKE,
6422            WAKE_GESTURE_ENABLED,
6423            LONG_PRESS_TIMEOUT,
6424            CAMERA_GESTURE_DISABLED,
6425            ACCESSIBILITY_AUTOCLICK_ENABLED,
6426            ACCESSIBILITY_AUTOCLICK_DELAY,
6427            ACCESSIBILITY_LARGE_POINTER_ICON,
6428            PREFERRED_TTY_MODE,
6429            ENHANCED_VOICE_PRIVACY_ENABLED,
6430            TTY_MODE_ENABLED,
6431            INCALL_POWER_BUTTON_BEHAVIOR,
6432            NIGHT_DISPLAY_CUSTOM_START_TIME,
6433            NIGHT_DISPLAY_CUSTOM_END_TIME,
6434            NIGHT_DISPLAY_AUTO_MODE,
6435            NIGHT_DISPLAY_ACTIVATED,
6436            CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED,
6437            CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED,
6438            SYSTEM_NAVIGATION_KEYS_ENABLED,
6439            QS_TILES,
6440            DOZE_ENABLED,
6441            DOZE_PULSE_ON_PICK_UP,
6442            DOZE_PULSE_ON_DOUBLE_TAP
6443        };
6444
6445        /**
6446         * These entries are considered common between the personal and the managed profile,
6447         * since the managed profile doesn't get to change them.
6448         */
6449        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
6450
6451        static {
6452            CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
6453            CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
6454            CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
6455            CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
6456            CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
6457            CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
6458            CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
6459            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PREVIOUS_MODE);
6460            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
6461            CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
6462            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
6463            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
6464        }
6465
6466        /** @hide */
6467        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
6468            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
6469        }
6470
6471        /**
6472         * Helper method for determining if a location provider is enabled.
6473         *
6474         * @param cr the content resolver to use
6475         * @param provider the location provider to query
6476         * @return true if the provider is enabled
6477         *
6478         * @deprecated use {@link #LOCATION_MODE} or
6479         *             {@link LocationManager#isProviderEnabled(String)}
6480         */
6481        @Deprecated
6482        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
6483            return isLocationProviderEnabledForUser(cr, provider, UserHandle.myUserId());
6484        }
6485
6486        /**
6487         * Helper method for determining if a location provider is enabled.
6488         * @param cr the content resolver to use
6489         * @param provider the location provider to query
6490         * @param userId the userId to query
6491         * @return true if the provider is enabled
6492         * @deprecated use {@link #LOCATION_MODE} or
6493         *             {@link LocationManager#isProviderEnabled(String)}
6494         * @hide
6495         */
6496        @Deprecated
6497        public static final boolean isLocationProviderEnabledForUser(ContentResolver cr, String provider, int userId) {
6498            String allowedProviders = Settings.Secure.getStringForUser(cr,
6499                    LOCATION_PROVIDERS_ALLOWED, userId);
6500            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
6501        }
6502
6503        /**
6504         * Thread-safe method for enabling or disabling a single location provider.
6505         * @param cr the content resolver to use
6506         * @param provider the location provider to enable or disable
6507         * @param enabled true if the provider should be enabled
6508         * @deprecated use {@link #putInt(ContentResolver, String, int)} and {@link #LOCATION_MODE}
6509         */
6510        @Deprecated
6511        public static final void setLocationProviderEnabled(ContentResolver cr,
6512                String provider, boolean enabled) {
6513            setLocationProviderEnabledForUser(cr, provider, enabled, UserHandle.myUserId());
6514        }
6515
6516        /**
6517         * Thread-safe method for enabling or disabling a single location provider.
6518         *
6519         * @param cr the content resolver to use
6520         * @param provider the location provider to enable or disable
6521         * @param enabled true if the provider should be enabled
6522         * @param userId the userId for which to enable/disable providers
6523         * @return true if the value was set, false on database errors
6524         * @deprecated use {@link #putIntForUser(ContentResolver, String, int, int)} and
6525         *             {@link #LOCATION_MODE}
6526         * @hide
6527         */
6528        @Deprecated
6529        public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
6530                String provider, boolean enabled, int userId) {
6531            synchronized (mLocationSettingsLock) {
6532                // to ensure thread safety, we write the provider name with a '+' or '-'
6533                // and let the SettingsProvider handle it rather than reading and modifying
6534                // the list of enabled providers.
6535                if (enabled) {
6536                    provider = "+" + provider;
6537                } else {
6538                    provider = "-" + provider;
6539                }
6540                return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
6541                        userId);
6542            }
6543        }
6544
6545        /**
6546         * Saves the current location mode into {@link #LOCATION_PREVIOUS_MODE}.
6547         */
6548        private static final boolean saveLocationModeForUser(ContentResolver cr, int userId) {
6549            final int mode = getLocationModeForUser(cr, userId);
6550            return putIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE, mode, userId);
6551        }
6552
6553        /**
6554         * Restores the current location mode from {@link #LOCATION_PREVIOUS_MODE}.
6555         */
6556        private static final boolean restoreLocationModeForUser(ContentResolver cr, int userId) {
6557            int mode = getIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE,
6558                    LOCATION_MODE_HIGH_ACCURACY, userId);
6559            // Make sure that the previous mode is never "off". Otherwise the user won't be able to
6560            // turn on location any longer.
6561            if (mode == LOCATION_MODE_OFF) {
6562                mode = LOCATION_MODE_HIGH_ACCURACY;
6563            }
6564            return setLocationModeForUser(cr, mode, userId);
6565        }
6566
6567        /**
6568         * Thread-safe method for setting the location mode to one of
6569         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
6570         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
6571         *
6572         * @param cr the content resolver to use
6573         * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
6574         * @param userId the userId for which to change mode
6575         * @return true if the value was set, false on database errors
6576         *
6577         * @throws IllegalArgumentException if mode is not one of the supported values
6578         */
6579        private static final boolean setLocationModeForUser(ContentResolver cr, int mode,
6580                int userId) {
6581            synchronized (mLocationSettingsLock) {
6582                boolean gps = false;
6583                boolean network = false;
6584                switch (mode) {
6585                    case LOCATION_MODE_PREVIOUS:
6586                        // Retrieve the actual mode and set to that mode.
6587                        return restoreLocationModeForUser(cr, userId);
6588                    case LOCATION_MODE_OFF:
6589                        saveLocationModeForUser(cr, userId);
6590                        break;
6591                    case LOCATION_MODE_SENSORS_ONLY:
6592                        gps = true;
6593                        break;
6594                    case LOCATION_MODE_BATTERY_SAVING:
6595                        network = true;
6596                        break;
6597                    case LOCATION_MODE_HIGH_ACCURACY:
6598                        gps = true;
6599                        network = true;
6600                        break;
6601                    default:
6602                        throw new IllegalArgumentException("Invalid location mode: " + mode);
6603                }
6604                // Note it's important that we set the NLP mode first. The Google implementation
6605                // of NLP clears its NLP consent setting any time it receives a
6606                // LocationManager.PROVIDERS_CHANGED_ACTION broadcast and NLP is disabled. Also,
6607                // it shows an NLP consent dialog any time it receives the broadcast, NLP is
6608                // enabled, and the NLP consent is not set. If 1) we were to enable GPS first,
6609                // 2) a setup wizard has its own NLP consent UI that sets the NLP consent setting,
6610                // and 3) the receiver happened to complete before we enabled NLP, then the Google
6611                // NLP would detect the attempt to enable NLP and show a redundant NLP consent
6612                // dialog. Then the people who wrote the setup wizard would be sad.
6613                boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
6614                        cr, LocationManager.NETWORK_PROVIDER, network, userId);
6615                boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
6616                        cr, LocationManager.GPS_PROVIDER, gps, userId);
6617                return gpsSuccess && nlpSuccess;
6618            }
6619        }
6620
6621        /**
6622         * Thread-safe method for reading the location mode, returns one of
6623         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
6624         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
6625         *
6626         * @param cr the content resolver to use
6627         * @param userId the userId for which to read the mode
6628         * @return the location mode
6629         */
6630        private static final int getLocationModeForUser(ContentResolver cr, int userId) {
6631            synchronized (mLocationSettingsLock) {
6632                boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
6633                        cr, LocationManager.GPS_PROVIDER, userId);
6634                boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
6635                        cr, LocationManager.NETWORK_PROVIDER, userId);
6636                if (gpsEnabled && networkEnabled) {
6637                    return LOCATION_MODE_HIGH_ACCURACY;
6638                } else if (gpsEnabled) {
6639                    return LOCATION_MODE_SENSORS_ONLY;
6640                } else if (networkEnabled) {
6641                    return LOCATION_MODE_BATTERY_SAVING;
6642                } else {
6643                    return LOCATION_MODE_OFF;
6644                }
6645            }
6646        }
6647    }
6648
6649    /**
6650     * Global system settings, containing preferences that always apply identically
6651     * to all defined users.  Applications can read these but are not allowed to write;
6652     * like the "Secure" settings, these are for preferences that the user must
6653     * explicitly modify through the system UI or specialized APIs for those values.
6654     */
6655    public static final class Global extends NameValueTable {
6656        /**
6657         * The content:// style URL for global secure settings items.  Not public.
6658         */
6659        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");
6660
6661        /**
6662         * Whether users are allowed to add more users or guest from lockscreen.
6663         * <p>
6664         * Type: int
6665         * @hide
6666         */
6667        public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";
6668
6669        /**
6670         * Setting whether the global gesture for enabling accessibility is enabled.
6671         * If this gesture is enabled the user will be able to perfrom it to enable
6672         * the accessibility state without visiting the settings app.
6673         * @hide
6674         */
6675        public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
6676                "enable_accessibility_global_gesture_enabled";
6677
6678        /**
6679         * Whether Airplane Mode is on.
6680         */
6681        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
6682
6683        /**
6684         * Whether Theater Mode is on.
6685         * {@hide}
6686         */
6687        @SystemApi
6688        public static final String THEATER_MODE_ON = "theater_mode_on";
6689
6690        /**
6691         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
6692         */
6693        public static final String RADIO_BLUETOOTH = "bluetooth";
6694
6695        /**
6696         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
6697         */
6698        public static final String RADIO_WIFI = "wifi";
6699
6700        /**
6701         * {@hide}
6702         */
6703        public static final String RADIO_WIMAX = "wimax";
6704        /**
6705         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
6706         */
6707        public static final String RADIO_CELL = "cell";
6708
6709        /**
6710         * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
6711         */
6712        public static final String RADIO_NFC = "nfc";
6713
6714        /**
6715         * A comma separated list of radios that need to be disabled when airplane mode
6716         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
6717         * included in the comma separated list.
6718         */
6719        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
6720
6721        /**
6722         * A comma separated list of radios that should to be disabled when airplane mode
6723         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
6724         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
6725         * will be turned off when entering airplane mode, but the user will be able to reenable
6726         * Wifi in the Settings app.
6727         *
6728         * {@hide}
6729         */
6730        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
6731
6732        /**
6733         * A Long representing a bitmap of profiles that should be disabled when bluetooth starts.
6734         * See {@link android.bluetooth.BluetoothProfile}.
6735         * {@hide}
6736         */
6737        public static final String BLUETOOTH_DISABLED_PROFILES = "bluetooth_disabled_profiles";
6738
6739        /**
6740         * A semi-colon separated list of Bluetooth interoperability workarounds.
6741         * Each entry is a partial Bluetooth device address string and an integer representing
6742         * the feature to be disabled, separated by a comma. The integer must correspond
6743         * to a interoperability feature as defined in "interop.h" in /system/bt.
6744         * <p>
6745         * Example: <br/>
6746         *   "00:11:22,0;01:02:03:04,2"
6747         * @hide
6748         */
6749       public static final String BLUETOOTH_INTEROPERABILITY_LIST = "bluetooth_interoperability_list";
6750
6751        /**
6752         * The policy for deciding when Wi-Fi should go to sleep (which will in
6753         * turn switch to using the mobile data as an Internet connection).
6754         * <p>
6755         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
6756         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
6757         * {@link #WIFI_SLEEP_POLICY_NEVER}.
6758         */
6759        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
6760
6761        /**
6762         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
6763         * policy, which is to sleep shortly after the turning off
6764         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
6765         */
6766        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
6767
6768        /**
6769         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
6770         * the device is on battery, and never go to sleep when the device is
6771         * plugged in.
6772         */
6773        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
6774
6775        /**
6776         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
6777         */
6778        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
6779
6780        /**
6781         * Value to specify if the user prefers the date, time and time zone
6782         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
6783         */
6784        public static final String AUTO_TIME = "auto_time";
6785
6786        /**
6787         * Value to specify if the user prefers the time zone
6788         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
6789         */
6790        public static final String AUTO_TIME_ZONE = "auto_time_zone";
6791
6792        /**
6793         * URI for the car dock "in" event sound.
6794         * @hide
6795         */
6796        public static final String CAR_DOCK_SOUND = "car_dock_sound";
6797
6798        /**
6799         * URI for the car dock "out" event sound.
6800         * @hide
6801         */
6802        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
6803
6804        /**
6805         * URI for the desk dock "in" event sound.
6806         * @hide
6807         */
6808        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
6809
6810        /**
6811         * URI for the desk dock "out" event sound.
6812         * @hide
6813         */
6814        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
6815
6816        /**
6817         * Whether to play a sound for dock events.
6818         * @hide
6819         */
6820        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
6821
6822        /**
6823         * URI for the "device locked" (keyguard shown) sound.
6824         * @hide
6825         */
6826        public static final String LOCK_SOUND = "lock_sound";
6827
6828        /**
6829         * URI for the "device unlocked" sound.
6830         * @hide
6831         */
6832        public static final String UNLOCK_SOUND = "unlock_sound";
6833
6834        /**
6835         * URI for the "device is trusted" sound, which is played when the device enters the trusted
6836         * state without unlocking.
6837         * @hide
6838         */
6839        public static final String TRUSTED_SOUND = "trusted_sound";
6840
6841        /**
6842         * URI for the low battery sound file.
6843         * @hide
6844         */
6845        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
6846
6847        /**
6848         * Whether to play a sound for low-battery alerts.
6849         * @hide
6850         */
6851        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
6852
6853        /**
6854         * URI for the "wireless charging started" sound.
6855         * @hide
6856         */
6857        public static final String WIRELESS_CHARGING_STARTED_SOUND =
6858                "wireless_charging_started_sound";
6859
6860        /**
6861         * Whether to play a sound for charging events.
6862         * @hide
6863         */
6864        public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";
6865
6866        /**
6867         * Whether we keep the device on while the device is plugged in.
6868         * Supported values are:
6869         * <ul>
6870         * <li>{@code 0} to never stay on while plugged in</li>
6871         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
6872         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
6873         * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
6874         * </ul>
6875         * These values can be OR-ed together.
6876         */
6877        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
6878
6879        /**
6880         * When the user has enable the option to have a "bug report" command
6881         * in the power menu.
6882         * @hide
6883         */
6884        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
6885
6886        /**
6887         * Whether ADB is enabled.
6888         */
6889        public static final String ADB_ENABLED = "adb_enabled";
6890
6891        /**
6892         * Whether Views are allowed to save their attribute data.
6893         * @hide
6894         */
6895        public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";
6896
6897        /**
6898         * Whether assisted GPS should be enabled or not.
6899         * @hide
6900         */
6901        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
6902
6903        /**
6904         * Whether bluetooth is enabled/disabled
6905         * 0=disabled. 1=enabled.
6906         */
6907        public static final String BLUETOOTH_ON = "bluetooth_on";
6908
6909        /**
6910         * CDMA Cell Broadcast SMS
6911         *                            0 = CDMA Cell Broadcast SMS disabled
6912         *                            1 = CDMA Cell Broadcast SMS enabled
6913         * @hide
6914         */
6915        public static final String CDMA_CELL_BROADCAST_SMS =
6916                "cdma_cell_broadcast_sms";
6917
6918        /**
6919         * The CDMA roaming mode 0 = Home Networks, CDMA default
6920         *                       1 = Roaming on Affiliated networks
6921         *                       2 = Roaming on any networks
6922         * @hide
6923         */
6924        public static final String CDMA_ROAMING_MODE = "roaming_settings";
6925
6926        /**
6927         * The CDMA subscription mode 0 = RUIM/SIM (default)
6928         *                                1 = NV
6929         * @hide
6930         */
6931        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
6932
6933        /** Inactivity timeout to track mobile data activity.
6934        *
6935        * If set to a positive integer, it indicates the inactivity timeout value in seconds to
6936        * infer the data activity of mobile network. After a period of no activity on mobile
6937        * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
6938        * intent is fired to indicate a transition of network status from "active" to "idle". Any
6939        * subsequent activity on mobile networks triggers the firing of {@code
6940        * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
6941        *
6942        * Network activity refers to transmitting or receiving data on the network interfaces.
6943        *
6944        * Tracking is disabled if set to zero or negative value.
6945        *
6946        * @hide
6947        */
6948       public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";
6949
6950       /** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
6951        * but for Wifi network.
6952        * @hide
6953        */
6954       public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";
6955
6956       /**
6957        * Whether or not data roaming is enabled. (0 = false, 1 = true)
6958        */
6959       public static final String DATA_ROAMING = "data_roaming";
6960
6961       /**
6962        * The value passed to a Mobile DataConnection via bringUp which defines the
6963        * number of retries to preform when setting up the initial connection. The default
6964        * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
6965        * @hide
6966        */
6967       public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";
6968
6969       /**
6970        * Whether any package can be on external storage. When this is true, any
6971        * package, regardless of manifest values, is a candidate for installing
6972        * or moving onto external storage. (0 = false, 1 = true)
6973        * @hide
6974        */
6975       public static final String FORCE_ALLOW_ON_EXTERNAL = "force_allow_on_external";
6976
6977        /**
6978         * Whether any activity can be resized. When this is true, any
6979         * activity, regardless of manifest values, can be resized for multi-window.
6980         * (0 = false, 1 = true)
6981         * @hide
6982         */
6983        public static final String DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES
6984                = "force_resizable_activities";
6985
6986        /**
6987         * Whether to enable experimental freeform support for windows.
6988         * @hide
6989         */
6990        public static final String DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT
6991                = "enable_freeform_support";
6992
6993       /**
6994        * Whether user has enabled development settings.
6995        */
6996       public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";
6997
6998       /**
6999        * Whether the device has been provisioned (0 = false, 1 = true).
7000        * <p>On a multiuser device with a separate system user, the screen may be locked
7001        * as soon as this is set to true and further activities cannot be launched on the
7002        * system user unless they are marked to show over keyguard.
7003        */
7004       public static final String DEVICE_PROVISIONED = "device_provisioned";
7005
7006       /**
7007        * Whether mobile data should be allowed while the device is being provisioned.
7008        * This allows the provisioning process to turn off mobile data before the user
7009        * has an opportunity to set things up, preventing other processes from burning
7010        * precious bytes before wifi is setup.
7011        * (0 = false, 1 = true)
7012        * @hide
7013        */
7014       public static final String DEVICE_PROVISIONING_MOBILE_DATA_ENABLED =
7015               "device_provisioning_mobile_data";
7016
7017       /**
7018        * The saved value for WindowManagerService.setForcedDisplaySize().
7019        * Two integers separated by a comma.  If unset, then use the real display size.
7020        * @hide
7021        */
7022       public static final String DISPLAY_SIZE_FORCED = "display_size_forced";
7023
7024       /**
7025        * The saved value for WindowManagerService.setForcedDisplayScalingMode().
7026        * 0 or unset if scaling is automatic, 1 if scaling is disabled.
7027        * @hide
7028        */
7029       public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";
7030
7031       /**
7032        * The maximum size, in bytes, of a download that the download manager will transfer over
7033        * a non-wifi connection.
7034        * @hide
7035        */
7036       public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
7037               "download_manager_max_bytes_over_mobile";
7038
7039       /**
7040        * The recommended maximum size, in bytes, of a download that the download manager should
7041        * transfer over a non-wifi connection. Over this size, the use will be warned, but will
7042        * have the option to start the download over the mobile connection anyway.
7043        * @hide
7044        */
7045       public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
7046               "download_manager_recommended_max_bytes_over_mobile";
7047
7048       /**
7049        * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
7050        */
7051       @Deprecated
7052       public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
7053
7054       /**
7055        * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
7056        * sent or processed. (0 = false, 1 = true)
7057        * @hide
7058        */
7059       public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";
7060
7061       /**
7062        * Whether HDMI system audio is enabled. If enabled, TV internal speaker is muted,
7063        * and the output is redirected to AV Receiver connected via
7064        * {@Global#HDMI_SYSTEM_AUDIO_OUTPUT}.
7065        * @hide
7066        */
7067       public static final String HDMI_SYSTEM_AUDIO_ENABLED = "hdmi_system_audio_enabled";
7068
7069       /**
7070        * Whether TV will automatically turn on upon reception of the CEC command
7071        * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
7072        * @hide
7073        */
7074       public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
7075               "hdmi_control_auto_wakeup_enabled";
7076
7077       /**
7078        * Whether TV will also turn off other CEC devices when it goes to standby mode.
7079        * (0 = false, 1 = true)
7080        * @hide
7081        */
7082       public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
7083               "hdmi_control_auto_device_off_enabled";
7084
7085       /**
7086        * Whether TV will switch to MHL port when a mobile device is plugged in.
7087        * (0 = false, 1 = true)
7088        * @hide
7089        */
7090       public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";
7091
7092       /**
7093        * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
7094        * @hide
7095        */
7096       public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";
7097
7098       /**
7099        * Whether mobile data connections are allowed by the user.  See
7100        * ConnectivityManager for more info.
7101        * @hide
7102        */
7103       public static final String MOBILE_DATA = "mobile_data";
7104
7105       /**
7106        * Whether the mobile data connection should remain active even when higher
7107        * priority networks like WiFi are active, to help make network switching faster.
7108        *
7109        * See ConnectivityService for more info.
7110        *
7111        * (0 = disabled, 1 = enabled)
7112        * @hide
7113        */
7114       public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
7115
7116       /** {@hide} */
7117       public static final String NETSTATS_ENABLED = "netstats_enabled";
7118       /** {@hide} */
7119       public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
7120       /** {@hide} */
7121       public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
7122       /** {@hide} */
7123       public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
7124       /** {@hide} */
7125       public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
7126
7127       /** {@hide} */
7128       public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
7129       /** {@hide} */
7130       public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
7131       /** {@hide} */
7132       public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
7133       /** {@hide} */
7134       public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";
7135
7136       /** {@hide} */
7137       public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
7138       /** {@hide} */
7139       public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
7140       /** {@hide} */
7141       public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
7142       /** {@hide} */
7143       public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";
7144
7145       /** {@hide} */
7146       public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
7147       /** {@hide} */
7148       public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
7149       /** {@hide} */
7150       public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
7151       /** {@hide} */
7152       public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";
7153
7154       /**
7155        * User preference for which network(s) should be used. Only the
7156        * connectivity service should touch this.
7157        */
7158       public static final String NETWORK_PREFERENCE = "network_preference";
7159
7160       /**
7161        * Which package name to use for network scoring. If null, or if the package is not a valid
7162        * scorer app, external network scores will neither be requested nor accepted.
7163        * @hide
7164        */
7165       public static final String NETWORK_SCORER_APP = "network_scorer_app";
7166
7167       /**
7168        * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
7169        * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
7170        * exceeded.
7171        * @hide
7172        */
7173       public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
7174
7175       /**
7176        * The length of time in milli-seconds that automatic small adjustments to
7177        * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
7178        * @hide
7179        */
7180       public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
7181
7182       /** Preferred NTP server. {@hide} */
7183       public static final String NTP_SERVER = "ntp_server";
7184       /** Timeout in milliseconds to wait for NTP server. {@hide} */
7185       public static final String NTP_TIMEOUT = "ntp_timeout";
7186
7187       /** {@hide} */
7188       public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";
7189
7190       /**
7191        * Sample validity in seconds to configure for the system DNS resolver.
7192        * {@hide}
7193        */
7194       public static final String DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS =
7195               "dns_resolver_sample_validity_seconds";
7196
7197       /**
7198        * Success threshold in percent for use with the system DNS resolver.
7199        * {@hide}
7200        */
7201       public static final String DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT =
7202                "dns_resolver_success_threshold_percent";
7203
7204       /**
7205        * Minimum number of samples needed for statistics to be considered meaningful in the
7206        * system DNS resolver.
7207        * {@hide}
7208        */
7209       public static final String DNS_RESOLVER_MIN_SAMPLES = "dns_resolver_min_samples";
7210
7211       /**
7212        * Maximum number taken into account for statistics purposes in the system DNS resolver.
7213        * {@hide}
7214        */
7215       public static final String DNS_RESOLVER_MAX_SAMPLES = "dns_resolver_max_samples";
7216
7217       /**
7218        * Whether to disable the automatic scheduling of system updates.
7219        * 1 = system updates won't be automatically scheduled (will always
7220        * present notification instead).
7221        * 0 = system updates will be automatically scheduled. (default)
7222        * @hide
7223        */
7224       @SystemApi
7225       public static final String OTA_DISABLE_AUTOMATIC_UPDATE = "ota_disable_automatic_update";
7226
7227       /**
7228        * Whether the package manager should send package verification broadcasts for verifiers to
7229        * review apps prior to installation.
7230        * 1 = request apps to be verified prior to installation, if a verifier exists.
7231        * 0 = do not verify apps before installation
7232        * @hide
7233        */
7234       public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";
7235
7236       /** Timeout for package verification.
7237        * @hide */
7238       public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";
7239
7240       /** Default response code for package verification.
7241        * @hide */
7242       public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";
7243
7244       /**
7245        * Show package verification setting in the Settings app.
7246        * 1 = show (default)
7247        * 0 = hide
7248        * @hide
7249        */
7250       public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";
7251
7252       /**
7253        * Run package verification on apps installed through ADB/ADT/USB
7254        * 1 = perform package verification on ADB installs (default)
7255        * 0 = bypass package verification on ADB installs
7256        * @hide
7257        */
7258       public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";
7259
7260       /**
7261        * Time since last fstrim (milliseconds) after which we force one to happen
7262        * during device startup.  If unset, the default is 3 days.
7263        * @hide
7264        */
7265       public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";
7266
7267       /**
7268        * The interval in milliseconds at which to check packet counts on the
7269        * mobile data interface when screen is on, to detect possible data
7270        * connection problems.
7271        * @hide
7272        */
7273       public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
7274               "pdp_watchdog_poll_interval_ms";
7275
7276       /**
7277        * The interval in milliseconds at which to check packet counts on the
7278        * mobile data interface when screen is off, to detect possible data
7279        * connection problems.
7280        * @hide
7281        */
7282       public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
7283               "pdp_watchdog_long_poll_interval_ms";
7284
7285       /**
7286        * The interval in milliseconds at which to check packet counts on the
7287        * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
7288        * outgoing packets has been reached without incoming packets.
7289        * @hide
7290        */
7291       public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
7292               "pdp_watchdog_error_poll_interval_ms";
7293
7294       /**
7295        * The number of outgoing packets sent without seeing an incoming packet
7296        * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
7297        * device is logged to the event log
7298        * @hide
7299        */
7300       public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
7301               "pdp_watchdog_trigger_packet_count";
7302
7303       /**
7304        * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
7305        * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
7306        * attempting data connection recovery.
7307        * @hide
7308        */
7309       public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
7310               "pdp_watchdog_error_poll_count";
7311
7312       /**
7313        * The number of failed PDP reset attempts before moving to something more
7314        * drastic: re-registering to the network.
7315        * @hide
7316        */
7317       public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
7318               "pdp_watchdog_max_pdp_reset_fail_count";
7319
7320       /**
7321        * A positive value indicates how often the SamplingProfiler
7322        * should take snapshots. Zero value means SamplingProfiler
7323        * is disabled.
7324        *
7325        * @hide
7326        */
7327       public static final String SAMPLING_PROFILER_MS = "sampling_profiler_ms";
7328
7329       /**
7330        * URL to open browser on to allow user to manage a prepay account
7331        * @hide
7332        */
7333       public static final String SETUP_PREPAID_DATA_SERVICE_URL =
7334               "setup_prepaid_data_service_url";
7335
7336       /**
7337        * URL to attempt a GET on to see if this is a prepay device
7338        * @hide
7339        */
7340       public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
7341               "setup_prepaid_detection_target_url";
7342
7343       /**
7344        * Host to check for a redirect to after an attempt to GET
7345        * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
7346        * this is a prepaid device with zero balance.)
7347        * @hide
7348        */
7349       public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
7350               "setup_prepaid_detection_redir_host";
7351
7352       /**
7353        * The interval in milliseconds at which to check the number of SMS sent out without asking
7354        * for use permit, to limit the un-authorized SMS usage.
7355        *
7356        * @hide
7357        */
7358       public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
7359               "sms_outgoing_check_interval_ms";
7360
7361       /**
7362        * The number of outgoing SMS sent without asking for user permit (of {@link
7363        * #SMS_OUTGOING_CHECK_INTERVAL_MS}
7364        *
7365        * @hide
7366        */
7367       public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
7368               "sms_outgoing_check_max_count";
7369
7370       /**
7371        * Used to disable SMS short code confirmation - defaults to true.
7372        * True indcates we will do the check, etc.  Set to false to disable.
7373        * @see com.android.internal.telephony.SmsUsageMonitor
7374        * @hide
7375        */
7376       public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";
7377
7378        /**
7379         * Used to select which country we use to determine premium sms codes.
7380         * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
7381         * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
7382         * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
7383         * @hide
7384         */
7385        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";
7386
7387       /**
7388        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
7389        * @hide
7390        */
7391       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";
7392
7393       /**
7394        * Used to disable Tethering on a device - defaults to true
7395        * @hide
7396        */
7397       public static final String TETHER_SUPPORTED = "tether_supported";
7398
7399       /**
7400        * Used to require DUN APN on the device or not - defaults to a build config value
7401        * which defaults to false
7402        * @hide
7403        */
7404       public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
7405
7406       /**
7407        * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
7408        * corresponding build config values are set it will override the APN DB
7409        * values.
7410        * Consists of a comma seperated list of strings:
7411        * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
7412        * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
7413        * @hide
7414        */
7415       public static final String TETHER_DUN_APN = "tether_dun_apn";
7416
7417       /**
7418        * List of carrier apps which are whitelisted to prompt the user for install when
7419        * a sim card with matching uicc carrier privilege rules is inserted.
7420        *
7421        * The value is "package1;package2;..."
7422        * @hide
7423        */
7424       public static final String CARRIER_APP_WHITELIST = "carrier_app_whitelist";
7425
7426       /**
7427        * USB Mass Storage Enabled
7428        */
7429       public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
7430
7431       /**
7432        * If this setting is set (to anything), then all references
7433        * to Gmail on the device must change to Google Mail.
7434        */
7435       public static final String USE_GOOGLE_MAIL = "use_google_mail";
7436
7437        /**
7438         * Webview Data reduction proxy key.
7439         * @hide
7440         */
7441        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
7442                "webview_data_reduction_proxy_key";
7443
7444       /**
7445        * Whether or not the WebView fallback mechanism should be enabled.
7446        * 0=disabled, 1=enabled.
7447        * @hide
7448        */
7449       public static final String WEBVIEW_FALLBACK_LOGIC_ENABLED =
7450               "webview_fallback_logic_enabled";
7451
7452       /**
7453        * Name of the package used as WebView provider (if unset the provider is instead determined
7454        * by the system).
7455        * @hide
7456        */
7457       public static final String WEBVIEW_PROVIDER = "webview_provider";
7458
7459       /**
7460        * Developer setting to enable WebView multiprocess rendering.
7461        * @hide
7462        */
7463       @SystemApi
7464       public static final String WEBVIEW_MULTIPROCESS = "webview_multiprocess";
7465
7466       /**
7467        * The maximum number of notifications shown in 24 hours when switching networks.
7468        * @hide
7469        */
7470       public static final String NETWORK_SWITCH_NOTIFICATION_DAILY_LIMIT =
7471              "network_switch_notification_daily_limit";
7472
7473       /**
7474        * The minimum time in milliseconds between notifications when switching networks.
7475        * @hide
7476        */
7477       public static final String NETWORK_SWITCH_NOTIFICATION_RATE_LIMIT_MILLIS =
7478              "network_switch_notification_rate_limit_millis";
7479
7480       /**
7481        * Whether to automatically switch away from wifi networks that lose Internet access.
7482        * Only meaningful if config_networkAvoidBadWifi is set to 0, otherwise the system always
7483        * avoids such networks. Valid values are:
7484        *
7485        * 0: Don't avoid bad wifi, don't prompt the user. Get stuck on bad wifi like it's 2013.
7486        * null: Ask the user whether to switch away from bad wifi.
7487        * 1: Avoid bad wifi.
7488        *
7489        * @hide
7490        */
7491       public static final String NETWORK_AVOID_BAD_WIFI = "network_avoid_bad_wifi";
7492
7493       /**
7494        * Whether Wifi display is enabled/disabled
7495        * 0=disabled. 1=enabled.
7496        * @hide
7497        */
7498       public static final String WIFI_DISPLAY_ON = "wifi_display_on";
7499
7500       /**
7501        * Whether Wifi display certification mode is enabled/disabled
7502        * 0=disabled. 1=enabled.
7503        * @hide
7504        */
7505       public static final String WIFI_DISPLAY_CERTIFICATION_ON =
7506               "wifi_display_certification_on";
7507
7508       /**
7509        * WPS Configuration method used by Wifi display, this setting only
7510        * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
7511        *
7512        * Possible values are:
7513        *
7514        * WpsInfo.INVALID: use default WPS method chosen by framework
7515        * WpsInfo.PBC    : use Push button
7516        * WpsInfo.KEYPAD : use Keypad
7517        * WpsInfo.DISPLAY: use Display
7518        * @hide
7519        */
7520       public static final String WIFI_DISPLAY_WPS_CONFIG =
7521           "wifi_display_wps_config";
7522
7523       /**
7524        * Whether to notify the user of open networks.
7525        * <p>
7526        * If not connected and the scan results have an open network, we will
7527        * put this notification up. If we attempt to connect to a network or
7528        * the open network(s) disappear, we remove the notification. When we
7529        * show the notification, we will not show it again for
7530        * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
7531        */
7532       public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
7533               "wifi_networks_available_notification_on";
7534       /**
7535        * {@hide}
7536        */
7537       public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
7538               "wimax_networks_available_notification_on";
7539
7540       /**
7541        * Delay (in seconds) before repeating the Wi-Fi networks available notification.
7542        * Connecting to a network will reset the timer.
7543        */
7544       public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
7545               "wifi_networks_available_repeat_delay";
7546
7547       /**
7548        * 802.11 country code in ISO 3166 format
7549        * @hide
7550        */
7551       public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
7552
7553       /**
7554        * The interval in milliseconds to issue wake up scans when wifi needs
7555        * to connect. This is necessary to connect to an access point when
7556        * device is on the move and the screen is off.
7557        * @hide
7558        */
7559       public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
7560               "wifi_framework_scan_interval_ms";
7561
7562       /**
7563        * The interval in milliseconds after which Wi-Fi is considered idle.
7564        * When idle, it is possible for the device to be switched from Wi-Fi to
7565        * the mobile data network.
7566        * @hide
7567        */
7568       public static final String WIFI_IDLE_MS = "wifi_idle_ms";
7569
7570       /**
7571        * When the number of open networks exceeds this number, the
7572        * least-recently-used excess networks will be removed.
7573        */
7574       public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
7575
7576       /**
7577        * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
7578        */
7579       public static final String WIFI_ON = "wifi_on";
7580
7581       /**
7582        * Setting to allow scans to be enabled even wifi is turned off for connectivity.
7583        * @hide
7584        */
7585       public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
7586                "wifi_scan_always_enabled";
7587
7588       /**
7589        * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
7590        * connectivity.
7591        * @hide
7592        */
7593       public static final String BLE_SCAN_ALWAYS_AVAILABLE =
7594               "ble_scan_always_enabled";
7595
7596       /**
7597        * Used to save the Wifi_ON state prior to tethering.
7598        * This state will be checked to restore Wifi after
7599        * the user turns off tethering.
7600        *
7601        * @hide
7602        */
7603       public static final String WIFI_SAVED_STATE = "wifi_saved_state";
7604
7605       /**
7606        * The interval in milliseconds to scan as used by the wifi supplicant
7607        * @hide
7608        */
7609       public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
7610               "wifi_supplicant_scan_interval_ms";
7611
7612        /**
7613         * whether frameworks handles wifi auto-join
7614         * @hide
7615         */
7616       public static final String WIFI_ENHANCED_AUTO_JOIN =
7617                "wifi_enhanced_auto_join";
7618
7619        /**
7620         * whether settings show RSSI
7621         * @hide
7622         */
7623        public static final String WIFI_NETWORK_SHOW_RSSI =
7624                "wifi_network_show_rssi";
7625
7626        /**
7627        * The interval in milliseconds to scan at supplicant when p2p is connected
7628        * @hide
7629        */
7630       public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
7631               "wifi_scan_interval_p2p_connected_ms";
7632
7633       /**
7634        * Whether the Wi-Fi watchdog is enabled.
7635        */
7636       public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
7637
7638       /**
7639        * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
7640        * the setting needs to be set to 0 to disable it.
7641        * @hide
7642        */
7643       public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
7644               "wifi_watchdog_poor_network_test_enabled";
7645
7646       /**
7647        * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
7648        * needs to be set to 0 to disable it.
7649        * @hide
7650        */
7651       public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
7652               "wifi_suspend_optimizations_enabled";
7653
7654       /**
7655        * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
7656        * will enable it. In the future, additional values may be supported.
7657        * @hide
7658        */
7659       public static final String WIFI_VERBOSE_LOGGING_ENABLED =
7660               "wifi_verbose_logging_enabled";
7661
7662       /**
7663        * The maximum number of times we will retry a connection to an access
7664        * point for which we have failed in acquiring an IP address from DHCP.
7665        * A value of N means that we will make N+1 connection attempts in all.
7666        */
7667       public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
7668
7669       /**
7670        * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
7671        * data connectivity to be established after a disconnect from Wi-Fi.
7672        */
7673       public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
7674           "wifi_mobile_data_transition_wakelock_timeout_ms";
7675
7676       /**
7677        * This setting controls whether WiFi configurations created by a Device Owner app
7678        * should be locked down (that is, be editable or removable only by the Device Owner App,
7679        * not even by Settings app).
7680        * This setting takes integer values. Non-zero values mean DO created configurations
7681        * are locked down. Value of zero means they are not. Default value in the absence of
7682        * actual value to this setting is 0.
7683        */
7684       public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
7685               "wifi_device_owner_configs_lockdown";
7686
7687       /**
7688        * The operational wifi frequency band
7689        * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
7690        * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
7691        * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
7692        *
7693        * @hide
7694        */
7695       public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
7696
7697       /**
7698        * The Wi-Fi peer-to-peer device name
7699        * @hide
7700        */
7701       public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";
7702
7703       /**
7704        * The min time between wifi disable and wifi enable
7705        * @hide
7706        */
7707       public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";
7708
7709       /**
7710        * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
7711        * from an ephemeral network if there is no BSSID for that network with a non-null score that
7712        * has been seen in this time period.
7713        *
7714        * If this is less than or equal to zero, we use a more conservative behavior and only check
7715        * for a non-null score from the currently connected or target BSSID.
7716        * @hide
7717        */
7718       public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
7719               "wifi_ephemeral_out_of_range_timeout_ms";
7720
7721       /**
7722        * The number of milliseconds to delay when checking for data stalls during
7723        * non-aggressive detection. (screen is turned off.)
7724        * @hide
7725        */
7726       public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
7727               "data_stall_alarm_non_aggressive_delay_in_ms";
7728
7729       /**
7730        * The number of milliseconds to delay when checking for data stalls during
7731        * aggressive detection. (screen on or suspected data stall)
7732        * @hide
7733        */
7734       public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
7735               "data_stall_alarm_aggressive_delay_in_ms";
7736
7737       /**
7738        * The number of milliseconds to allow the provisioning apn to remain active
7739        * @hide
7740        */
7741       public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
7742               "provisioning_apn_alarm_delay_in_ms";
7743
7744       /**
7745        * The interval in milliseconds at which to check gprs registration
7746        * after the first registration mismatch of gprs and voice service,
7747        * to detect possible data network registration problems.
7748        *
7749        * @hide
7750        */
7751       public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
7752               "gprs_register_check_period_ms";
7753
7754       /**
7755        * Nonzero causes Log.wtf() to crash.
7756        * @hide
7757        */
7758       public static final String WTF_IS_FATAL = "wtf_is_fatal";
7759
7760       /**
7761        * Ringer mode. This is used internally, changing this value will not
7762        * change the ringer mode. See AudioManager.
7763        */
7764       public static final String MODE_RINGER = "mode_ringer";
7765
7766       /**
7767        * Overlay display devices setting.
7768        * The associated value is a specially formatted string that describes the
7769        * size and density of simulated secondary display devices.
7770        * <p>
7771        * Format: {width}x{height}/{dpi};...
7772        * </p><p>
7773        * Example:
7774        * <ul>
7775        * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
7776        * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
7777        * at 1080p and the second at 720p.</li>
7778        * <li>If the value is empty, then no overlay display devices are created.</li>
7779        * </ul></p>
7780        *
7781        * @hide
7782        */
7783       public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";
7784
7785        /**
7786         * Threshold values for the duration and level of a discharge cycle,
7787         * under which we log discharge cycle info.
7788         *
7789         * @hide
7790         */
7791        public static final String
7792                BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";
7793
7794        /** @hide */
7795        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
7796
7797        /**
7798         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
7799         * intents on application crashes and ANRs. If this is disabled, the
7800         * crash/ANR dialog will never display the "Report" button.
7801         * <p>
7802         * Type: int (0 = disallow, 1 = allow)
7803         *
7804         * @hide
7805         */
7806        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
7807
7808        /**
7809         * Maximum age of entries kept by {@link DropBoxManager}.
7810         *
7811         * @hide
7812         */
7813        public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";
7814
7815        /**
7816         * Maximum number of entry files which {@link DropBoxManager} will keep
7817         * around.
7818         *
7819         * @hide
7820         */
7821        public static final String DROPBOX_MAX_FILES = "dropbox_max_files";
7822
7823        /**
7824         * Maximum amount of disk space used by {@link DropBoxManager} no matter
7825         * what.
7826         *
7827         * @hide
7828         */
7829        public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";
7830
7831        /**
7832         * Percent of free disk (excluding reserve) which {@link DropBoxManager}
7833         * will use.
7834         *
7835         * @hide
7836         */
7837        public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";
7838
7839        /**
7840         * Percent of total disk which {@link DropBoxManager} will never dip
7841         * into.
7842         *
7843         * @hide
7844         */
7845        public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";
7846
7847        /**
7848         * Prefix for per-tag dropbox disable/enable settings.
7849         *
7850         * @hide
7851         */
7852        public static final String DROPBOX_TAG_PREFIX = "dropbox:";
7853
7854        /**
7855         * Lines of logcat to include with system crash/ANR/etc. reports, as a
7856         * prefix of the dropbox tag of the report type. For example,
7857         * "logcat_for_system_server_anr" controls the lines of logcat captured
7858         * with system server ANR reports. 0 to disable.
7859         *
7860         * @hide
7861         */
7862        public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";
7863
7864        /**
7865         * The interval in minutes after which the amount of free storage left
7866         * on the device is logged to the event log
7867         *
7868         * @hide
7869         */
7870        public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";
7871
7872        /**
7873         * Threshold for the amount of change in disk free space required to
7874         * report the amount of free space. Used to prevent spamming the logs
7875         * when the disk free space isn't changing frequently.
7876         *
7877         * @hide
7878         */
7879        public static final String
7880                DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";
7881
7882        /**
7883         * Minimum percentage of free storage on the device that is used to
7884         * determine if the device is running low on storage. The default is 10.
7885         * <p>
7886         * Say this value is set to 10, the device is considered running low on
7887         * storage if 90% or more of the device storage is filled up.
7888         *
7889         * @hide
7890         */
7891        public static final String
7892                SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";
7893
7894        /**
7895         * Maximum byte size of the low storage threshold. This is to ensure
7896         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
7897         * overly large threshold for large storage devices. Currently this must
7898         * be less than 2GB. This default is 500MB.
7899         *
7900         * @hide
7901         */
7902        public static final String
7903                SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";
7904
7905        /**
7906         * Minimum bytes of free storage on the device before the data partition
7907         * is considered full. By default, 1 MB is reserved to avoid system-wide
7908         * SQLite disk full exceptions.
7909         *
7910         * @hide
7911         */
7912        public static final String
7913                SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";
7914
7915        /**
7916         * The maximum reconnect delay for short network outages or when the
7917         * network is suspended due to phone use.
7918         *
7919         * @hide
7920         */
7921        public static final String
7922                SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";
7923
7924        /**
7925         * The number of milliseconds to delay before sending out
7926         * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
7927         *
7928         * @hide
7929         */
7930        public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";
7931
7932
7933        /**
7934         * Network sampling interval, in seconds. We'll generate link information
7935         * about bytes/packets sent and error rates based on data sampled in this interval
7936         *
7937         * @hide
7938         */
7939
7940        public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
7941                "connectivity_sampling_interval_in_seconds";
7942
7943        /**
7944         * The series of successively longer delays used in retrying to download PAC file.
7945         * Last delay is used between successful PAC downloads.
7946         *
7947         * @hide
7948         */
7949        public static final String PAC_CHANGE_DELAY = "pac_change_delay";
7950
7951        /**
7952         * Setting to turn off captive portal detection. Feature is enabled by
7953         * default and the setting needs to be set to 0 to disable it.
7954         *
7955         * @hide
7956         */
7957        public static final String
7958                CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";
7959
7960        /**
7961         * The server used for captive portal detection upon a new conection. A
7962         * 204 response code from the server is used for validation.
7963         * TODO: remove this deprecated symbol.
7964         *
7965         * @hide
7966         */
7967        public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";
7968
7969        /**
7970         * The URL used for HTTPS captive portal detection upon a new connection.
7971         * A 204 response code from the server is used for validation.
7972         *
7973         * @hide
7974         */
7975        public static final String CAPTIVE_PORTAL_HTTPS_URL = "captive_portal_https_url";
7976
7977        /**
7978         * The URL used for HTTP captive portal detection upon a new connection.
7979         * A 204 response code from the server is used for validation.
7980         *
7981         * @hide
7982         */
7983        public static final String CAPTIVE_PORTAL_HTTP_URL = "captive_portal_http_url";
7984
7985        /**
7986         * The URL used for fallback HTTP captive portal detection when previous HTTP
7987         * and HTTPS captive portal detection attemps did not return a conclusive answer.
7988         *
7989         * @hide
7990         */
7991        public static final String CAPTIVE_PORTAL_FALLBACK_URL = "captive_portal_fallback_url";
7992
7993        /**
7994         * Whether to use HTTPS for network validation. This is enabled by default and the setting
7995         * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
7996         * don't actually use HTTPS, but it's consistent with the other settings.
7997         *
7998         * @hide
7999         */
8000        public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";
8001
8002        /**
8003         * Which User-Agent string to use in the header of the captive portal detection probes.
8004         * The User-Agent field is unset when this setting has no value (HttpUrlConnection default).
8005         *
8006         * @hide
8007         */
8008        public static final String CAPTIVE_PORTAL_USER_AGENT = "captive_portal_user_agent";
8009
8010        /**
8011         * Whether network service discovery is enabled.
8012         *
8013         * @hide
8014         */
8015        public static final String NSD_ON = "nsd_on";
8016
8017        /**
8018         * Let user pick default install location.
8019         *
8020         * @hide
8021         */
8022        public static final String SET_INSTALL_LOCATION = "set_install_location";
8023
8024        /**
8025         * Default install location value.
8026         * 0 = auto, let system decide
8027         * 1 = internal
8028         * 2 = sdcard
8029         * @hide
8030         */
8031        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
8032
8033        /**
8034         * ms during which to consume extra events related to Inet connection
8035         * condition after a transtion to fully-connected
8036         *
8037         * @hide
8038         */
8039        public static final String
8040                INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";
8041
8042        /**
8043         * ms during which to consume extra events related to Inet connection
8044         * condtion after a transtion to partly-connected
8045         *
8046         * @hide
8047         */
8048        public static final String
8049                INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";
8050
8051        /** {@hide} */
8052        public static final String
8053                READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";
8054
8055        /**
8056         * Host name and port for global http proxy. Uses ':' seperator for
8057         * between host and port.
8058         */
8059        public static final String HTTP_PROXY = "http_proxy";
8060
8061        /**
8062         * Host name for global http proxy. Set via ConnectivityManager.
8063         *
8064         * @hide
8065         */
8066        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
8067
8068        /**
8069         * Integer host port for global http proxy. Set via ConnectivityManager.
8070         *
8071         * @hide
8072         */
8073        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
8074
8075        /**
8076         * Exclusion list for global proxy. This string contains a list of
8077         * comma-separated domains where the global proxy does not apply.
8078         * Domains should be listed in a comma- separated list. Example of
8079         * acceptable formats: ".domain1.com,my.domain2.com" Use
8080         * ConnectivityManager to set/get.
8081         *
8082         * @hide
8083         */
8084        public static final String
8085                GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";
8086
8087        /**
8088         * The location PAC File for the proxy.
8089         * @hide
8090         */
8091        public static final String
8092                GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";
8093
8094        /**
8095         * Enables the UI setting to allow the user to specify the global HTTP
8096         * proxy and associated exclusion list.
8097         *
8098         * @hide
8099         */
8100        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
8101
8102        /**
8103         * Setting for default DNS in case nobody suggests one
8104         *
8105         * @hide
8106         */
8107        public static final String DEFAULT_DNS_SERVER = "default_dns_server";
8108
8109        /** {@hide} */
8110        public static final String
8111                BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
8112        /** {@hide} */
8113        public static final String
8114                BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
8115        /** {@hide} */
8116        public static final String
8117                BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX = "bluetooth_a2dp_src_priority_";
8118        /** {@hide} */
8119        public static final String
8120                BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
8121        /** {@hide} */
8122        public static final String
8123                BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
8124        /** {@hide} */
8125        public static final String
8126                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
8127        /** {@hide} */
8128        public static final String
8129                BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
8130
8131        /**
8132         * Device Idle (Doze) specific settings.
8133         * This is encoded as a key=value list, separated by commas. Ex:
8134         *
8135         * "inactive_timeout=60000,sensing_timeout=400000"
8136         *
8137         * The following keys are supported:
8138         *
8139         * <pre>
8140         * inactive_to                      (long)
8141         * sensing_to                       (long)
8142         * motion_inactive_to               (long)
8143         * idle_after_inactive_to           (long)
8144         * idle_pending_to                  (long)
8145         * max_idle_pending_to              (long)
8146         * idle_pending_factor              (float)
8147         * idle_to                          (long)
8148         * max_idle_to                      (long)
8149         * idle_factor                      (float)
8150         * min_time_to_alarm                (long)
8151         * max_temp_app_whitelist_duration  (long)
8152         * notification_whitelist_duration  (long)
8153         * </pre>
8154         *
8155         * <p>
8156         * Type: string
8157         * @hide
8158         * @see com.android.server.DeviceIdleController.Constants
8159         */
8160        public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";
8161
8162        /**
8163         * Device Idle (Doze) specific settings for watches. See {@code #DEVICE_IDLE_CONSTANTS}
8164         *
8165         * <p>
8166         * Type: string
8167         * @hide
8168         * @see com.android.server.DeviceIdleController.Constants
8169         */
8170        public static final String DEVICE_IDLE_CONSTANTS_WATCH = "device_idle_constants_watch";
8171
8172        /**
8173         * App standby (app idle) specific settings.
8174         * This is encoded as a key=value list, separated by commas. Ex:
8175         *
8176         * "idle_duration=5000,parole_interval=4500"
8177         *
8178         * The following keys are supported:
8179         *
8180         * <pre>
8181         * idle_duration2       (long)
8182         * wallclock_threshold  (long)
8183         * parole_interval      (long)
8184         * parole_duration      (long)
8185         *
8186         * idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
8187         * </pre>
8188         *
8189         * <p>
8190         * Type: string
8191         * @hide
8192         * @see com.android.server.usage.UsageStatsService.SettingsObserver
8193         */
8194        public static final String APP_IDLE_CONSTANTS = "app_idle_constants";
8195
8196        /**
8197         * Alarm manager specific settings.
8198         * This is encoded as a key=value list, separated by commas. Ex:
8199         *
8200         * "min_futurity=5000,allow_while_idle_short_time=4500"
8201         *
8202         * The following keys are supported:
8203         *
8204         * <pre>
8205         * min_futurity                         (long)
8206         * min_interval                         (long)
8207         * allow_while_idle_short_time          (long)
8208         * allow_while_idle_long_time           (long)
8209         * allow_while_idle_whitelist_duration  (long)
8210         * </pre>
8211         *
8212         * <p>
8213         * Type: string
8214         * @hide
8215         * @see com.android.server.AlarmManagerService.Constants
8216         */
8217        public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";
8218
8219        /**
8220         * Job scheduler specific settings.
8221         * This is encoded as a key=value list, separated by commas. Ex:
8222         *
8223         * "min_ready_jobs_count=2,moderate_use_factor=.5"
8224         *
8225         * The following keys are supported:
8226         *
8227         * <pre>
8228         * min_idle_count                       (int)
8229         * min_charging_count                   (int)
8230         * min_connectivity_count               (int)
8231         * min_content_count                    (int)
8232         * min_ready_jobs_count                 (int)
8233         * heavy_use_factor                     (float)
8234         * moderate_use_factor                  (float)
8235         * fg_job_count                         (int)
8236         * bg_normal_job_count                  (int)
8237         * bg_moderate_job_count                (int)
8238         * bg_low_job_count                     (int)
8239         * bg_critical_job_count                (int)
8240         * </pre>
8241         *
8242         * <p>
8243         * Type: string
8244         * @hide
8245         * @see com.android.server.job.JobSchedulerService.Constants
8246         */
8247        public static final String JOB_SCHEDULER_CONSTANTS = "job_scheduler_constants";
8248
8249        /**
8250         * ShortcutManager specific settings.
8251         * This is encoded as a key=value list, separated by commas. Ex:
8252         *
8253         * "reset_interval_sec=86400,max_updates_per_interval=1"
8254         *
8255         * The following keys are supported:
8256         *
8257         * <pre>
8258         * reset_interval_sec              (long)
8259         * max_updates_per_interval        (int)
8260         * max_icon_dimension_dp           (int, DP)
8261         * max_icon_dimension_dp_lowram    (int, DP)
8262         * max_shortcuts                   (int)
8263         * icon_quality                    (int, 0-100)
8264         * icon_format                     (String)
8265         * </pre>
8266         *
8267         * <p>
8268         * Type: string
8269         * @hide
8270         * @see com.android.server.pm.ShortcutService.ConfigConstants
8271         */
8272        public static final String SHORTCUT_MANAGER_CONSTANTS = "shortcut_manager_constants";
8273
8274        /**
8275         * Get the key that retrieves a bluetooth headset's priority.
8276         * @hide
8277         */
8278        public static final String getBluetoothHeadsetPriorityKey(String address) {
8279            return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8280        }
8281
8282        /**
8283         * Get the key that retrieves a bluetooth a2dp sink's priority.
8284         * @hide
8285         */
8286        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
8287            return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8288        }
8289
8290        /**
8291         * Get the key that retrieves a bluetooth a2dp src's priority.
8292         * @hide
8293         */
8294        public static final String getBluetoothA2dpSrcPriorityKey(String address) {
8295            return BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8296        }
8297
8298        /**
8299         * Get the key that retrieves a bluetooth Input Device's priority.
8300         * @hide
8301         */
8302        public static final String getBluetoothInputDevicePriorityKey(String address) {
8303            return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8304        }
8305
8306        /**
8307         * Get the key that retrieves a bluetooth map priority.
8308         * @hide
8309         */
8310        public static final String getBluetoothMapPriorityKey(String address) {
8311            return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8312        }
8313
8314        /**
8315         * Get the key that retrieves a bluetooth pbap client priority.
8316         * @hide
8317         */
8318        public static final String getBluetoothPbapClientPriorityKey(String address) {
8319            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8320        }
8321
8322        /**
8323         * Get the key that retrieves a bluetooth map priority.
8324         * @hide
8325         */
8326        public static final String getBluetoothSapPriorityKey(String address) {
8327            return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8328        }
8329
8330        /**
8331         * Scaling factor for normal window animations. Setting to 0 will
8332         * disable window animations.
8333         */
8334        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
8335
8336        /**
8337         * Scaling factor for activity transition animations. Setting to 0 will
8338         * disable window animations.
8339         */
8340        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
8341
8342        /**
8343         * Scaling factor for Animator-based animations. This affects both the
8344         * start delay and duration of all such animations. Setting to 0 will
8345         * cause animations to end immediately. The default value is 1.
8346         */
8347        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
8348
8349        /**
8350         * Scaling factor for normal window animations. Setting to 0 will
8351         * disable window animations.
8352         *
8353         * @hide
8354         */
8355        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
8356
8357        /**
8358         * If 0, the compatibility mode is off for all applications.
8359         * If 1, older applications run under compatibility mode.
8360         * TODO: remove this settings before code freeze (bug/1907571)
8361         * @hide
8362         */
8363        public static final String COMPATIBILITY_MODE = "compatibility_mode";
8364
8365        /**
8366         * CDMA only settings
8367         * Emergency Tone  0 = Off
8368         *                 1 = Alert
8369         *                 2 = Vibrate
8370         * @hide
8371         */
8372        public static final String EMERGENCY_TONE = "emergency_tone";
8373
8374        /**
8375         * CDMA only settings
8376         * Whether the auto retry is enabled. The value is
8377         * boolean (1 or 0).
8378         * @hide
8379         */
8380        public static final String CALL_AUTO_RETRY = "call_auto_retry";
8381
8382        /**
8383         * A setting that can be read whether the emergency affordance is currently needed.
8384         * The value is a boolean (1 or 0).
8385         * @hide
8386         */
8387        public static final String EMERGENCY_AFFORDANCE_NEEDED = "emergency_affordance_needed";
8388
8389        /**
8390         * See RIL_PreferredNetworkType in ril.h
8391         * @hide
8392         */
8393        public static final String PREFERRED_NETWORK_MODE =
8394                "preferred_network_mode";
8395
8396        /**
8397         * Name of an application package to be debugged.
8398         */
8399        public static final String DEBUG_APP = "debug_app";
8400
8401        /**
8402         * If 1, when launching DEBUG_APP it will wait for the debugger before
8403         * starting user code.  If 0, it will run normally.
8404         */
8405        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
8406
8407        /**
8408         * Control whether the process CPU usage meter should be shown.
8409         *
8410         * @deprecated This functionality is no longer available as of
8411         * {@link android.os.Build.VERSION_CODES#N_MR1}.
8412         */
8413        @Deprecated
8414        public static final String SHOW_PROCESSES = "show_processes";
8415
8416        /**
8417         * If 1 low power mode is enabled.
8418         * @hide
8419         */
8420        public static final String LOW_POWER_MODE = "low_power";
8421
8422        /**
8423         * Battery level [1-99] at which low power mode automatically turns on.
8424         * If 0, it will not automatically turn on.
8425         * @hide
8426         */
8427        public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";
8428
8429         /**
8430         * If not 0, the activity manager will aggressively finish activities and
8431         * processes as soon as they are no longer needed.  If 0, the normal
8432         * extended lifetime is used.
8433         */
8434        public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
8435
8436        /**
8437         * @hide
8438         * If not 0, the activity manager will implement a looser version of background
8439         * check that is more compatible with existing apps.
8440         */
8441        public static final String LENIENT_BACKGROUND_CHECK = "lenient_background_check";
8442
8443        /**
8444         * Use Dock audio output for media:
8445         *      0 = disabled
8446         *      1 = enabled
8447         * @hide
8448         */
8449        public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
8450
8451        /**
8452         * The surround sound formats AC3, DTS or IEC61937 are
8453         * available for use if they are detected.
8454         * This is the default mode.
8455         *
8456         * Note that AUTO is equivalent to ALWAYS for Android TVs and other
8457         * devices that have an S/PDIF output. This is because S/PDIF
8458         * is unidirectional and the TV cannot know if a decoder is
8459         * connected. So it assumes they are always available.
8460         * @hide
8461         */
8462         public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;
8463
8464        /**
8465         * AC3, DTS or IEC61937 are NEVER available, even if they
8466         * are detected by the hardware. Those formats will not be
8467         * reported.
8468         *
8469         * An example use case would be an AVR reports that it is capable of
8470         * surround sound decoding but is broken. If NEVER is chosen
8471         * then apps must use PCM output instead of encoded output.
8472         * @hide
8473         */
8474         public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;
8475
8476        /**
8477         * AC3, DTS or IEC61937 are ALWAYS available, even if they
8478         * are not detected by the hardware. Those formats will be
8479         * reported as part of the HDMI output capability. Applications
8480         * are then free to use either PCM or encoded output.
8481         *
8482         * An example use case would be a when TV was connected over
8483         * TOS-link to an AVR. But the TV could not see it because TOS-link
8484         * is unidirectional.
8485         * @hide
8486         */
8487         public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;
8488
8489        /**
8490         * Set to ENCODED_SURROUND_OUTPUT_AUTO,
8491         * ENCODED_SURROUND_OUTPUT_NEVER or
8492         * ENCODED_SURROUND_OUTPUT_ALWAYS
8493         * @hide
8494         */
8495        public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";
8496
8497        /**
8498         * Persisted safe headphone volume management state by AudioService
8499         * @hide
8500         */
8501        public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";
8502
8503        /**
8504         * URL for tzinfo (time zone) updates
8505         * @hide
8506         */
8507        public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";
8508
8509        /**
8510         * URL for tzinfo (time zone) update metadata
8511         * @hide
8512         */
8513        public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";
8514
8515        /**
8516         * URL for selinux (mandatory access control) updates
8517         * @hide
8518         */
8519        public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";
8520
8521        /**
8522         * URL for selinux (mandatory access control) update metadata
8523         * @hide
8524         */
8525        public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";
8526
8527        /**
8528         * URL for sms short code updates
8529         * @hide
8530         */
8531        public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
8532                "sms_short_codes_content_url";
8533
8534        /**
8535         * URL for sms short code update metadata
8536         * @hide
8537         */
8538        public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
8539                "sms_short_codes_metadata_url";
8540
8541        /**
8542         * URL for apn_db updates
8543         * @hide
8544         */
8545        public static final String APN_DB_UPDATE_CONTENT_URL = "apn_db_content_url";
8546
8547        /**
8548         * URL for apn_db update metadata
8549         * @hide
8550         */
8551        public static final String APN_DB_UPDATE_METADATA_URL = "apn_db_metadata_url";
8552
8553        /**
8554         * URL for cert pinlist updates
8555         * @hide
8556         */
8557        public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";
8558
8559        /**
8560         * URL for cert pinlist updates
8561         * @hide
8562         */
8563        public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";
8564
8565        /**
8566         * URL for intent firewall updates
8567         * @hide
8568         */
8569        public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
8570                "intent_firewall_content_url";
8571
8572        /**
8573         * URL for intent firewall update metadata
8574         * @hide
8575         */
8576        public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
8577                "intent_firewall_metadata_url";
8578
8579        /**
8580         * SELinux enforcement status. If 0, permissive; if 1, enforcing.
8581         * @hide
8582         */
8583        public static final String SELINUX_STATUS = "selinux_status";
8584
8585        /**
8586         * Developer setting to force RTL layout.
8587         * @hide
8588         */
8589        public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
8590
8591        /**
8592         * Milliseconds after screen-off after which low battery sounds will be silenced.
8593         *
8594         * If zero, battery sounds will always play.
8595         * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
8596         *
8597         * @hide
8598         */
8599        public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
8600
8601        /**
8602         * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
8603         * the caller is done with this, they should call {@link ContentResolver#delete} to
8604         * clean up any value that they may have written.
8605         *
8606         * @hide
8607         */
8608        public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";
8609
8610        /**
8611         * Defines global runtime overrides to window policy.
8612         *
8613         * See {@link com.android.server.policy.PolicyControl} for value format.
8614         *
8615         * @hide
8616         */
8617        public static final String POLICY_CONTROL = "policy_control";
8618
8619        /**
8620         * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
8621         * or ZEN_MODE_NO_INTERRUPTIONS.
8622         *
8623         * @hide
8624         */
8625        public static final String ZEN_MODE = "zen_mode";
8626
8627        /** @hide */ public static final int ZEN_MODE_OFF = 0;
8628        /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
8629        /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
8630        /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
8631
8632        /** @hide */ public static String zenModeToString(int mode) {
8633            if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
8634            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
8635            if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
8636            return "ZEN_MODE_OFF";
8637        }
8638
8639        /** @hide */ public static boolean isValidZenMode(int value) {
8640            switch (value) {
8641                case Global.ZEN_MODE_OFF:
8642                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
8643                case Global.ZEN_MODE_ALARMS:
8644                case Global.ZEN_MODE_NO_INTERRUPTIONS:
8645                    return true;
8646                default:
8647                    return false;
8648            }
8649        }
8650
8651        /**
8652         * Value of the ringer before entering zen mode.
8653         *
8654         * @hide
8655         */
8656        public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";
8657
8658        /**
8659         * Opaque value, changes when persisted zen mode configuration changes.
8660         *
8661         * @hide
8662         */
8663        public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";
8664
8665        /**
8666         * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
8667         *
8668         * @hide
8669         */
8670        public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
8671                "heads_up_notifications_enabled";
8672
8673        /** @hide */ public static final int HEADS_UP_OFF = 0;
8674        /** @hide */ public static final int HEADS_UP_ON = 1;
8675
8676        /**
8677         * The name of the device
8678         */
8679        public static final String DEVICE_NAME = "device_name";
8680
8681        /**
8682         * Whether the NetworkScoringService has been first initialized.
8683         * <p>
8684         * Type: int (0 for false, 1 for true)
8685         * @hide
8686         */
8687        public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";
8688
8689        /**
8690         * Whether the user wants to be prompted for password to decrypt the device on boot.
8691         * This only matters if the storage is encrypted.
8692         * <p>
8693         * Type: int (0 for false, 1 for true)
8694         * @hide
8695         */
8696        public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
8697
8698        /**
8699         * Whether the Volte is enabled
8700         * <p>
8701         * Type: int (0 for false, 1 for true)
8702         * @hide
8703         */
8704        public static final String ENHANCED_4G_MODE_ENABLED = "volte_vt_enabled";
8705
8706        /**
8707         * Whether VT (Video Telephony over IMS) is enabled
8708         * <p>
8709         * Type: int (0 for false, 1 for true)
8710         *
8711         * @hide
8712         */
8713        public static final String VT_IMS_ENABLED = "vt_ims_enabled";
8714
8715        /**
8716         * Whether WFC is enabled
8717         * <p>
8718         * Type: int (0 for false, 1 for true)
8719         *
8720         * @hide
8721         */
8722        public static final String WFC_IMS_ENABLED = "wfc_ims_enabled";
8723
8724        /**
8725         * WFC mode on home/non-roaming network.
8726         * <p>
8727         * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
8728         *
8729         * @hide
8730         */
8731        public static final String WFC_IMS_MODE = "wfc_ims_mode";
8732
8733        /**
8734         * WFC mode on roaming network.
8735         * <p>
8736         * Type: int - see {@link WFC_IMS_MODE} for values
8737         *
8738         * @hide
8739         */
8740        public static final String WFC_IMS_ROAMING_MODE = "wfc_ims_roaming_mode";
8741
8742        /**
8743         * Whether WFC roaming is enabled
8744         * <p>
8745         * Type: int (0 for false, 1 for true)
8746         *
8747         * @hide
8748         */
8749        public static final String WFC_IMS_ROAMING_ENABLED = "wfc_ims_roaming_enabled";
8750
8751        /**
8752         * Whether user can enable/disable LTE as a preferred network. A carrier might control
8753         * this via gservices, OMA-DM, carrier app, etc.
8754         * <p>
8755         * Type: int (0 for false, 1 for true)
8756         * @hide
8757         */
8758        public static final String LTE_SERVICE_FORCED = "lte_service_forced";
8759
8760        /**
8761         * Ephemeral app cookie max size in bytes.
8762         * <p>
8763         * Type: int
8764         * @hide
8765         */
8766        public static final String EPHEMERAL_COOKIE_MAX_SIZE_BYTES =
8767                "ephemeral_cookie_max_size_bytes";
8768
8769        /**
8770         * Toggle to enable/disable the entire ephemeral feature. By default, ephemeral is
8771         * enabled. Set to zero to disable.
8772         * <p>
8773         * Type: int (0 for false, 1 for true)
8774         *
8775         * @hide
8776         */
8777        public static final String ENABLE_EPHEMERAL_FEATURE = "enable_ephemeral_feature";
8778
8779        /**
8780         * A mask applied to the ephemeral hash to generate the hash prefix.
8781         * <p>
8782         * Type: int
8783         *
8784         * @hide
8785         */
8786        public static final String EPHEMERAL_HASH_PREFIX_MASK = "ephemeral_hash_prefix_mask";
8787
8788        /**
8789         * Number of hash prefixes to send during ephemeral resolution.
8790         * <p>
8791         * Type: int
8792         *
8793         * @hide
8794         */
8795        public static final String EPHEMERAL_HASH_PREFIX_COUNT = "ephemeral_hash_prefix_count";
8796
8797        /**
8798         * The duration for caching uninstalled ephemeral apps.
8799         * <p>
8800         * Type: long
8801         * @hide
8802         */
8803        public static final String UNINSTALLED_EPHEMERAL_APP_CACHE_DURATION_MILLIS =
8804                "uninstalled_ephemeral_app_cache_duration_millis";
8805
8806        /**
8807         * Allows switching users when system user is locked.
8808         * <p>
8809         * Type: int
8810         * @hide
8811         */
8812        public static final String ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED =
8813                "allow_user_switching_when_system_user_locked";
8814
8815        /**
8816         * Boot count since the device starts running APK level 24.
8817         * <p>
8818         * Type: int
8819         */
8820        public static final String BOOT_COUNT = "boot_count";
8821
8822        /**
8823         * Whether the safe boot is disallowed.
8824         *
8825         * <p>This setting should have the identical value as the corresponding user restriction.
8826         * The purpose of the setting is to make the restriction available in early boot stages
8827         * before the user restrictions are loaded.
8828         * @hide
8829         */
8830        public static final String SAFE_BOOT_DISALLOWED = "safe_boot_disallowed";
8831
8832        /**
8833         * Whether this device is currently in retail demo mode. If true, device
8834         * usage is severely limited.
8835         * <p>
8836         * Type: int (0 for false, 1 for true)
8837         * @hide
8838         */
8839        public static final String DEVICE_DEMO_MODE = "device_demo_mode";
8840
8841        /**
8842         * Retail mode specific settings. This is encoded as a key=value list, separated by commas.
8843         * Ex: "user_inactivity_timeout_ms=30000,warning_dialog_timeout_ms=10000". The following
8844         * keys are supported:
8845         *
8846         * <pre>
8847         * user_inactivity_timeout_ms  (long)
8848         * warning_dialog_timeout_ms   (long)
8849         * </pre>
8850         * <p>
8851         * Type: string
8852         *
8853         * @hide
8854         */
8855        public static final String RETAIL_DEMO_MODE_CONSTANTS = "retail_demo_mode_constants";
8856
8857        /**
8858         * The reason for the settings database being downgraded. This is only for
8859         * troubleshooting purposes and its value should not be interpreted in any way.
8860         *
8861         * Type: string
8862         *
8863         * @hide
8864         */
8865        public static final String DATABASE_DOWNGRADE_REASON = "database_downgrade_reason";
8866
8867        /**
8868         * Settings to backup. This is here so that it's in the same place as the settings
8869         * keys and easy to update.
8870         *
8871         * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
8872         * and Secure as well.  This is because those tables drive both backup and
8873         * restore, and restore needs to properly whitelist keys that used to live
8874         * in those namespaces.  The keys will only actually be backed up / restored
8875         * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
8876         *
8877         * NOTE: Settings are backed up and restored in the order they appear
8878         *       in this array. If you have one setting depending on another,
8879         *       make sure that they are ordered appropriately.
8880         *
8881         * @hide
8882         */
8883        public static final String[] SETTINGS_TO_BACKUP = {
8884            BUGREPORT_IN_POWER_MENU,
8885            STAY_ON_WHILE_PLUGGED_IN,
8886            AUTO_TIME,
8887            AUTO_TIME_ZONE,
8888            POWER_SOUNDS_ENABLED,
8889            DOCK_SOUNDS_ENABLED,
8890            CHARGING_SOUNDS_ENABLED,
8891            USB_MASS_STORAGE_ENABLED,
8892            ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED,
8893            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
8894            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
8895            WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
8896            WIFI_NUM_OPEN_NETWORKS_KEPT,
8897            EMERGENCY_TONE,
8898            CALL_AUTO_RETRY,
8899            DOCK_AUDIO_MEDIA_ENABLED,
8900            ENCODED_SURROUND_OUTPUT,
8901            LOW_POWER_MODE_TRIGGER_LEVEL
8902        };
8903
8904        // Populated lazily, guarded by class object:
8905        private static NameValueCache sNameValueCache = new NameValueCache(
8906                    CONTENT_URI,
8907                    CALL_METHOD_GET_GLOBAL,
8908                    CALL_METHOD_PUT_GLOBAL);
8909
8910        // Certain settings have been moved from global to the per-user secure namespace
8911        private static final HashSet<String> MOVED_TO_SECURE;
8912        static {
8913            MOVED_TO_SECURE = new HashSet<String>(1);
8914            MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
8915        }
8916
8917        /** @hide */
8918        public static void getMovedToSecureSettings(Set<String> outKeySet) {
8919            outKeySet.addAll(MOVED_TO_SECURE);
8920        }
8921
8922        /**
8923         * Look up a name in the database.
8924         * @param resolver to access the database with
8925         * @param name to look up in the table
8926         * @return the corresponding value, or null if not present
8927         */
8928        public static String getString(ContentResolver resolver, String name) {
8929            return getStringForUser(resolver, name, UserHandle.myUserId());
8930        }
8931
8932        /** @hide */
8933        public static String getStringForUser(ContentResolver resolver, String name,
8934                int userHandle) {
8935            if (MOVED_TO_SECURE.contains(name)) {
8936                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
8937                        + " to android.provider.Settings.Secure, returning read-only value.");
8938                return Secure.getStringForUser(resolver, name, userHandle);
8939            }
8940            return sNameValueCache.getStringForUser(resolver, name, userHandle);
8941        }
8942
8943        /**
8944         * Store a name/value pair into the database.
8945         * @param resolver to access the database with
8946         * @param name to store
8947         * @param value to associate with the name
8948         * @return true if the value was set, false on database errors
8949         */
8950        public static boolean putString(ContentResolver resolver,
8951                String name, String value) {
8952            return putStringForUser(resolver, name, value, UserHandle.myUserId());
8953        }
8954
8955        /** @hide */
8956        public static boolean putStringForUser(ContentResolver resolver,
8957                String name, String value, int userHandle) {
8958            if (LOCAL_LOGV) {
8959                Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
8960                        + " for " + userHandle);
8961            }
8962            // Global and Secure have the same access policy so we can forward writes
8963            if (MOVED_TO_SECURE.contains(name)) {
8964                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
8965                        + " to android.provider.Settings.Secure, value is unchanged.");
8966                return Secure.putStringForUser(resolver, name, value, userHandle);
8967            }
8968            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
8969        }
8970
8971        /**
8972         * Construct the content URI for a particular name/value pair,
8973         * useful for monitoring changes with a ContentObserver.
8974         * @param name to look up in the table
8975         * @return the corresponding content URI, or null if not present
8976         */
8977        public static Uri getUriFor(String name) {
8978            return getUriFor(CONTENT_URI, name);
8979        }
8980
8981        /**
8982         * Convenience function for retrieving a single secure settings value
8983         * as an integer.  Note that internally setting values are always
8984         * stored as strings; this function converts the string to an integer
8985         * for you.  The default value will be returned if the setting is
8986         * not defined or not an integer.
8987         *
8988         * @param cr The ContentResolver to access.
8989         * @param name The name of the setting to retrieve.
8990         * @param def Value to return if the setting is not defined.
8991         *
8992         * @return The setting's current value, or 'def' if it is not defined
8993         * or not a valid integer.
8994         */
8995        public static int getInt(ContentResolver cr, String name, int def) {
8996            String v = getString(cr, name);
8997            try {
8998                return v != null ? Integer.parseInt(v) : def;
8999            } catch (NumberFormatException e) {
9000                return def;
9001            }
9002        }
9003
9004        /**
9005         * Convenience function for retrieving a single secure settings value
9006         * as an integer.  Note that internally setting values are always
9007         * stored as strings; this function converts the string to an integer
9008         * for you.
9009         * <p>
9010         * This version does not take a default value.  If the setting has not
9011         * been set, or the string value is not a number,
9012         * it throws {@link SettingNotFoundException}.
9013         *
9014         * @param cr The ContentResolver to access.
9015         * @param name The name of the setting to retrieve.
9016         *
9017         * @throws SettingNotFoundException Thrown if a setting by the given
9018         * name can't be found or the setting value is not an integer.
9019         *
9020         * @return The setting's current value.
9021         */
9022        public static int getInt(ContentResolver cr, String name)
9023                throws SettingNotFoundException {
9024            String v = getString(cr, name);
9025            try {
9026                return Integer.parseInt(v);
9027            } catch (NumberFormatException e) {
9028                throw new SettingNotFoundException(name);
9029            }
9030        }
9031
9032        /**
9033         * Convenience function for updating a single settings value as an
9034         * integer. This will either create a new entry in the table if the
9035         * given name does not exist, or modify the value of the existing row
9036         * with that name.  Note that internally setting values are always
9037         * stored as strings, so this function converts the given value to a
9038         * string before storing it.
9039         *
9040         * @param cr The ContentResolver to access.
9041         * @param name The name of the setting to modify.
9042         * @param value The new value for the setting.
9043         * @return true if the value was set, false on database errors
9044         */
9045        public static boolean putInt(ContentResolver cr, String name, int value) {
9046            return putString(cr, name, Integer.toString(value));
9047        }
9048
9049        /**
9050         * Convenience function for retrieving a single secure settings value
9051         * as a {@code long}.  Note that internally setting values are always
9052         * stored as strings; this function converts the string to a {@code long}
9053         * for you.  The default value will be returned if the setting is
9054         * not defined or not a {@code long}.
9055         *
9056         * @param cr The ContentResolver to access.
9057         * @param name The name of the setting to retrieve.
9058         * @param def Value to return if the setting is not defined.
9059         *
9060         * @return The setting's current value, or 'def' if it is not defined
9061         * or not a valid {@code long}.
9062         */
9063        public static long getLong(ContentResolver cr, String name, long def) {
9064            String valString = getString(cr, name);
9065            long value;
9066            try {
9067                value = valString != null ? Long.parseLong(valString) : def;
9068            } catch (NumberFormatException e) {
9069                value = def;
9070            }
9071            return value;
9072        }
9073
9074        /**
9075         * Convenience function for retrieving a single secure settings value
9076         * as a {@code long}.  Note that internally setting values are always
9077         * stored as strings; this function converts the string to a {@code long}
9078         * for you.
9079         * <p>
9080         * This version does not take a default value.  If the setting has not
9081         * been set, or the string value is not a number,
9082         * it throws {@link SettingNotFoundException}.
9083         *
9084         * @param cr The ContentResolver to access.
9085         * @param name The name of the setting to retrieve.
9086         *
9087         * @return The setting's current value.
9088         * @throws SettingNotFoundException Thrown if a setting by the given
9089         * name can't be found or the setting value is not an integer.
9090         */
9091        public static long getLong(ContentResolver cr, String name)
9092                throws SettingNotFoundException {
9093            String valString = getString(cr, name);
9094            try {
9095                return Long.parseLong(valString);
9096            } catch (NumberFormatException e) {
9097                throw new SettingNotFoundException(name);
9098            }
9099        }
9100
9101        /**
9102         * Convenience function for updating a secure settings value as a long
9103         * integer. This will either create a new entry in the table if the
9104         * given name does not exist, or modify the value of the existing row
9105         * with that name.  Note that internally setting values are always
9106         * stored as strings, so this function converts the given value to a
9107         * string before storing it.
9108         *
9109         * @param cr The ContentResolver to access.
9110         * @param name The name of the setting to modify.
9111         * @param value The new value for the setting.
9112         * @return true if the value was set, false on database errors
9113         */
9114        public static boolean putLong(ContentResolver cr, String name, long value) {
9115            return putString(cr, name, Long.toString(value));
9116        }
9117
9118        /**
9119         * Convenience function for retrieving a single secure settings value
9120         * as a floating point number.  Note that internally setting values are
9121         * always stored as strings; this function converts the string to an
9122         * float for you. The default value will be returned if the setting
9123         * is not defined or not a valid float.
9124         *
9125         * @param cr The ContentResolver to access.
9126         * @param name The name of the setting to retrieve.
9127         * @param def Value to return if the setting is not defined.
9128         *
9129         * @return The setting's current value, or 'def' if it is not defined
9130         * or not a valid float.
9131         */
9132        public static float getFloat(ContentResolver cr, String name, float def) {
9133            String v = getString(cr, name);
9134            try {
9135                return v != null ? Float.parseFloat(v) : def;
9136            } catch (NumberFormatException e) {
9137                return def;
9138            }
9139        }
9140
9141        /**
9142         * Convenience function for retrieving a single secure settings value
9143         * as a float.  Note that internally setting values are always
9144         * stored as strings; this function converts the string to a float
9145         * for you.
9146         * <p>
9147         * This version does not take a default value.  If the setting has not
9148         * been set, or the string value is not a number,
9149         * it throws {@link SettingNotFoundException}.
9150         *
9151         * @param cr The ContentResolver to access.
9152         * @param name The name of the setting to retrieve.
9153         *
9154         * @throws SettingNotFoundException Thrown if a setting by the given
9155         * name can't be found or the setting value is not a float.
9156         *
9157         * @return The setting's current value.
9158         */
9159        public static float getFloat(ContentResolver cr, String name)
9160                throws SettingNotFoundException {
9161            String v = getString(cr, name);
9162            if (v == null) {
9163                throw new SettingNotFoundException(name);
9164            }
9165            try {
9166                return Float.parseFloat(v);
9167            } catch (NumberFormatException e) {
9168                throw new SettingNotFoundException(name);
9169            }
9170        }
9171
9172        /**
9173         * Convenience function for updating a single settings value as a
9174         * floating point number. This will either create a new entry in the
9175         * table if the given name does not exist, or modify the value of the
9176         * existing row with that name.  Note that internally setting values
9177         * are always stored as strings, so this function converts the given
9178         * value to a string before storing it.
9179         *
9180         * @param cr The ContentResolver to access.
9181         * @param name The name of the setting to modify.
9182         * @param value The new value for the setting.
9183         * @return true if the value was set, false on database errors
9184         */
9185        public static boolean putFloat(ContentResolver cr, String name, float value) {
9186            return putString(cr, name, Float.toString(value));
9187        }
9188
9189
9190        /**
9191          * Subscription to be used for voice call on a multi sim device. The supported values
9192          * are 0 = SUB1, 1 = SUB2 and etc.
9193          * @hide
9194          */
9195        public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
9196
9197        /**
9198          * Used to provide option to user to select subscription during dial.
9199          * The supported values are 0 = disable or 1 = enable prompt.
9200          * @hide
9201          */
9202        public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
9203
9204        /**
9205          * Subscription to be used for data call on a multi sim device. The supported values
9206          * are 0 = SUB1, 1 = SUB2 and etc.
9207          * @hide
9208          */
9209        public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
9210
9211        /**
9212          * Subscription to be used for SMS on a multi sim device. The supported values
9213          * are 0 = SUB1, 1 = SUB2 and etc.
9214          * @hide
9215          */
9216        public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
9217
9218       /**
9219          * Used to provide option to user to select subscription during send SMS.
9220          * The value 1 - enable, 0 - disable
9221          * @hide
9222          */
9223        public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";
9224
9225
9226
9227        /** User preferred subscriptions setting.
9228          * This holds the details of the user selected subscription from the card and
9229          * the activation status. Each settings string have the coma separated values
9230          * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
9231          * @hide
9232         */
9233        public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
9234                "user_preferred_sub2","user_preferred_sub3"};
9235
9236        /**
9237         * Whether to enable new contacts aggregator or not.
9238         * The value 1 - enable, 0 - disable
9239         * @hide
9240         */
9241        public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";
9242
9243        /**
9244         * Whether to enable contacts metadata syncing or not
9245         * The value 1 - enable, 0 - disable
9246         *
9247         * @removed
9248         */
9249        @Deprecated
9250        public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";
9251
9252        /**
9253         * Whether to enable contacts metadata syncing or not
9254         * The value 1 - enable, 0 - disable
9255         */
9256        public static final String CONTACT_METADATA_SYNC_ENABLED = "contact_metadata_sync_enabled";
9257
9258        /**
9259         * Whether to enable cellular on boot.
9260         * The value 1 - enable, 0 - disable
9261         * @hide
9262         */
9263        public static final String ENABLE_CELLULAR_ON_BOOT = "enable_cellular_on_boot";
9264
9265        /**
9266         * The maximum allowed notification enqueue rate in Hertz.
9267         *
9268         * Should be a float, and includes both posts and updates.
9269         * @hide
9270         */
9271        public static final String MAX_NOTIFICATION_ENQUEUE_RATE = "max_notification_enqueue_rate";
9272
9273        /**
9274         * Whether cell is enabled/disabled
9275         * @hide
9276         */
9277        public static final String CELL_ON = "cell_on";
9278    }
9279
9280    /**
9281     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
9282     * Intent URL, allowing it to be either a web page or a particular
9283     * application activity.
9284     *
9285     * @hide
9286     */
9287    public static final class Bookmarks implements BaseColumns
9288    {
9289        private static final String TAG = "Bookmarks";
9290
9291        /**
9292         * The content:// style URL for this table
9293         */
9294        public static final Uri CONTENT_URI =
9295            Uri.parse("content://" + AUTHORITY + "/bookmarks");
9296
9297        /**
9298         * The row ID.
9299         * <p>Type: INTEGER</p>
9300         */
9301        public static final String ID = "_id";
9302
9303        /**
9304         * Descriptive name of the bookmark that can be displayed to the user.
9305         * If this is empty, the title should be resolved at display time (use
9306         * {@link #getTitle(Context, Cursor)} any time you want to display the
9307         * title of a bookmark.)
9308         * <P>
9309         * Type: TEXT
9310         * </P>
9311         */
9312        public static final String TITLE = "title";
9313
9314        /**
9315         * Arbitrary string (displayed to the user) that allows bookmarks to be
9316         * organized into categories.  There are some special names for
9317         * standard folders, which all start with '@'.  The label displayed for
9318         * the folder changes with the locale (via {@link #getLabelForFolder}) but
9319         * the folder name does not change so you can consistently query for
9320         * the folder regardless of the current locale.
9321         *
9322         * <P>Type: TEXT</P>
9323         *
9324         */
9325        public static final String FOLDER = "folder";
9326
9327        /**
9328         * The Intent URL of the bookmark, describing what it points to.  This
9329         * value is given to {@link android.content.Intent#getIntent} to create
9330         * an Intent that can be launched.
9331         * <P>Type: TEXT</P>
9332         */
9333        public static final String INTENT = "intent";
9334
9335        /**
9336         * Optional shortcut character associated with this bookmark.
9337         * <P>Type: INTEGER</P>
9338         */
9339        public static final String SHORTCUT = "shortcut";
9340
9341        /**
9342         * The order in which the bookmark should be displayed
9343         * <P>Type: INTEGER</P>
9344         */
9345        public static final String ORDERING = "ordering";
9346
9347        private static final String[] sIntentProjection = { INTENT };
9348        private static final String[] sShortcutProjection = { ID, SHORTCUT };
9349        private static final String sShortcutSelection = SHORTCUT + "=?";
9350
9351        /**
9352         * Convenience function to retrieve the bookmarked Intent for a
9353         * particular shortcut key.
9354         *
9355         * @param cr The ContentResolver to query.
9356         * @param shortcut The shortcut key.
9357         *
9358         * @return Intent The bookmarked URL, or null if there is no bookmark
9359         *         matching the given shortcut.
9360         */
9361        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
9362        {
9363            Intent intent = null;
9364
9365            Cursor c = cr.query(CONTENT_URI,
9366                    sIntentProjection, sShortcutSelection,
9367                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
9368            // Keep trying until we find a valid shortcut
9369            try {
9370                while (intent == null && c.moveToNext()) {
9371                    try {
9372                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
9373                        intent = Intent.parseUri(intentURI, 0);
9374                    } catch (java.net.URISyntaxException e) {
9375                        // The stored URL is bad...  ignore it.
9376                    } catch (IllegalArgumentException e) {
9377                        // Column not found
9378                        Log.w(TAG, "Intent column not found", e);
9379                    }
9380                }
9381            } finally {
9382                if (c != null) c.close();
9383            }
9384
9385            return intent;
9386        }
9387
9388        /**
9389         * Add a new bookmark to the system.
9390         *
9391         * @param cr The ContentResolver to query.
9392         * @param intent The desired target of the bookmark.
9393         * @param title Bookmark title that is shown to the user; null if none
9394         *            or it should be resolved to the intent's title.
9395         * @param folder Folder in which to place the bookmark; null if none.
9396         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
9397         *            this is non-zero and there is an existing bookmark entry
9398         *            with this same shortcut, then that existing shortcut is
9399         *            cleared (the bookmark is not removed).
9400         * @return The unique content URL for the new bookmark entry.
9401         */
9402        public static Uri add(ContentResolver cr,
9403                                           Intent intent,
9404                                           String title,
9405                                           String folder,
9406                                           char shortcut,
9407                                           int ordering)
9408        {
9409            // If a shortcut is supplied, and it is already defined for
9410            // another bookmark, then remove the old definition.
9411            if (shortcut != 0) {
9412                cr.delete(CONTENT_URI, sShortcutSelection,
9413                        new String[] { String.valueOf((int) shortcut) });
9414            }
9415
9416            ContentValues values = new ContentValues();
9417            if (title != null) values.put(TITLE, title);
9418            if (folder != null) values.put(FOLDER, folder);
9419            values.put(INTENT, intent.toUri(0));
9420            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
9421            values.put(ORDERING, ordering);
9422            return cr.insert(CONTENT_URI, values);
9423        }
9424
9425        /**
9426         * Return the folder name as it should be displayed to the user.  This
9427         * takes care of localizing special folders.
9428         *
9429         * @param r Resources object for current locale; only need access to
9430         *          system resources.
9431         * @param folder The value found in the {@link #FOLDER} column.
9432         *
9433         * @return CharSequence The label for this folder that should be shown
9434         *         to the user.
9435         */
9436        public static CharSequence getLabelForFolder(Resources r, String folder) {
9437            return folder;
9438        }
9439
9440        /**
9441         * Return the title as it should be displayed to the user. This takes
9442         * care of localizing bookmarks that point to activities.
9443         *
9444         * @param context A context.
9445         * @param cursor A cursor pointing to the row whose title should be
9446         *        returned. The cursor must contain at least the {@link #TITLE}
9447         *        and {@link #INTENT} columns.
9448         * @return A title that is localized and can be displayed to the user,
9449         *         or the empty string if one could not be found.
9450         */
9451        public static CharSequence getTitle(Context context, Cursor cursor) {
9452            int titleColumn = cursor.getColumnIndex(TITLE);
9453            int intentColumn = cursor.getColumnIndex(INTENT);
9454            if (titleColumn == -1 || intentColumn == -1) {
9455                throw new IllegalArgumentException(
9456                        "The cursor must contain the TITLE and INTENT columns.");
9457            }
9458
9459            String title = cursor.getString(titleColumn);
9460            if (!TextUtils.isEmpty(title)) {
9461                return title;
9462            }
9463
9464            String intentUri = cursor.getString(intentColumn);
9465            if (TextUtils.isEmpty(intentUri)) {
9466                return "";
9467            }
9468
9469            Intent intent;
9470            try {
9471                intent = Intent.parseUri(intentUri, 0);
9472            } catch (URISyntaxException e) {
9473                return "";
9474            }
9475
9476            PackageManager packageManager = context.getPackageManager();
9477            ResolveInfo info = packageManager.resolveActivity(intent, 0);
9478            return info != null ? info.loadLabel(packageManager) : "";
9479        }
9480    }
9481
9482    /**
9483     * Returns the device ID that we should use when connecting to the mobile gtalk server.
9484     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
9485     * from the GoogleLoginService.
9486     *
9487     * @param androidId The Android ID for this device.
9488     * @return The device ID that should be used when connecting to the mobile gtalk server.
9489     * @hide
9490     */
9491    public static String getGTalkDeviceId(long androidId) {
9492        return "android-" + Long.toHexString(androidId);
9493    }
9494
9495    private static final String[] PM_WRITE_SETTINGS = {
9496        android.Manifest.permission.WRITE_SETTINGS
9497    };
9498    private static final String[] PM_CHANGE_NETWORK_STATE = {
9499        android.Manifest.permission.CHANGE_NETWORK_STATE,
9500        android.Manifest.permission.WRITE_SETTINGS
9501    };
9502    private static final String[] PM_SYSTEM_ALERT_WINDOW = {
9503        android.Manifest.permission.SYSTEM_ALERT_WINDOW
9504    };
9505
9506    /**
9507     * Performs a strict and comprehensive check of whether a calling package is allowed to
9508     * write/modify system settings, as the condition differs for pre-M, M+, and
9509     * privileged/preinstalled apps. If the provided uid does not match the
9510     * callingPackage, a negative result will be returned.
9511     * @hide
9512     */
9513    public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
9514            String callingPackage, boolean throwException) {
9515        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9516                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9517                PM_WRITE_SETTINGS, false);
9518    }
9519
9520    /**
9521     * Performs a strict and comprehensive check of whether a calling package is allowed to
9522     * write/modify system settings, as the condition differs for pre-M, M+, and
9523     * privileged/preinstalled apps. If the provided uid does not match the
9524     * callingPackage, a negative result will be returned. The caller is expected to have
9525     * the WRITE_SETTINGS permission declared.
9526     *
9527     * Note: if the check is successful, the operation of this app will be updated to the
9528     * current time.
9529     * @hide
9530     */
9531    public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
9532            String callingPackage, boolean throwException) {
9533        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9534                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9535                PM_WRITE_SETTINGS, true);
9536    }
9537
9538    /**
9539     * Performs a strict and comprehensive check of whether a calling package is allowed to
9540     * change the state of network, as the condition differs for pre-M, M+, and
9541     * privileged/preinstalled apps. The caller is expected to have either the
9542     * CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
9543     * permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
9544     * can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
9545     * permission and cannot be revoked. See http://b/23597341
9546     *
9547     * Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
9548     * of this app will be updated to the current time.
9549     * @hide
9550     */
9551    public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
9552            String callingPackage, boolean throwException) {
9553        if (context.checkCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE)
9554                == PackageManager.PERMISSION_GRANTED) {
9555            return true;
9556        }
9557        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9558                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9559                PM_CHANGE_NETWORK_STATE, true);
9560    }
9561
9562    /**
9563     * Performs a strict and comprehensive check of whether a calling package is allowed to
9564     * draw on top of other apps, as the conditions differs for pre-M, M+, and
9565     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
9566     * a negative result will be returned.
9567     * @hide
9568     */
9569    public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
9570            String callingPackage, boolean throwException) {
9571        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9572                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
9573                PM_SYSTEM_ALERT_WINDOW, false);
9574    }
9575
9576    /**
9577     * Performs a strict and comprehensive check of whether a calling package is allowed to
9578     * draw on top of other apps, as the conditions differs for pre-M, M+, and
9579     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
9580     * a negative result will be returned.
9581     *
9582     * Note: if the check is successful, the operation of this app will be updated to the
9583     * current time.
9584     * @hide
9585     */
9586    public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
9587            callingPackage, boolean throwException) {
9588        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9589                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
9590                PM_SYSTEM_ALERT_WINDOW, true);
9591    }
9592
9593    /**
9594     * Helper method to perform a general and comprehensive check of whether an operation that is
9595     * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
9596     * OP_WRITE_SETTINGS
9597     * @hide
9598     */
9599    public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
9600            int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
9601            permissions, boolean makeNote) {
9602        if (callingPackage == null) {
9603            return false;
9604        }
9605
9606        AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
9607        int mode = AppOpsManager.MODE_DEFAULT;
9608        if (makeNote) {
9609            mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
9610        } else {
9611            mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
9612        }
9613
9614        switch (mode) {
9615            case AppOpsManager.MODE_ALLOWED:
9616                return true;
9617
9618            case AppOpsManager.MODE_DEFAULT:
9619                // this is the default operating mode after an app's installation
9620                // In this case we will check all associated static permission to see
9621                // if it is granted during install time.
9622                for (String permission : permissions) {
9623                    if (context.checkCallingOrSelfPermission(permission) == PackageManager
9624                            .PERMISSION_GRANTED) {
9625                        // if either of the permissions are granted, we will allow it
9626                        return true;
9627                    }
9628                }
9629
9630            default:
9631                // this is for all other cases trickled down here...
9632                if (!throwException) {
9633                    return false;
9634                }
9635        }
9636
9637        // prepare string to throw SecurityException
9638        StringBuilder exceptionMessage = new StringBuilder();
9639        exceptionMessage.append(callingPackage);
9640        exceptionMessage.append(" was not granted ");
9641        if (permissions.length > 1) {
9642            exceptionMessage.append(" either of these permissions: ");
9643        } else {
9644            exceptionMessage.append(" this permission: ");
9645        }
9646        for (int i = 0; i < permissions.length; i++) {
9647            exceptionMessage.append(permissions[i]);
9648            exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
9649        }
9650
9651        throw new SecurityException(exceptionMessage.toString());
9652    }
9653
9654    /**
9655     * Retrieves a correponding package name for a given uid. It will query all
9656     * packages that are associated with the given uid, but it will return only
9657     * the zeroth result.
9658     * Note: If package could not be found, a null is returned.
9659     * @hide
9660     */
9661    public static String getPackageNameForUid(Context context, int uid) {
9662        String[] packages = context.getPackageManager().getPackagesForUid(uid);
9663        if (packages == null) {
9664            return null;
9665        }
9666        return packages[0];
9667    }
9668}
9669