Settings.java revision ac62b4b3605062bb46873b0f69dd940d09884fad
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.Binder;
48import android.os.Bundle;
49import android.os.DropBoxManager;
50import android.os.IBinder;
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.LocaleList;
62import android.util.Log;
63
64import android.util.MemoryIntArray;
65import com.android.internal.annotations.GuardedBy;
66import com.android.internal.util.ArrayUtils;
67import com.android.internal.widget.ILockSettings;
68
69import java.io.IOException;
70import java.net.URISyntaxException;
71import java.text.SimpleDateFormat;
72import java.util.HashMap;
73import java.util.HashSet;
74import java.util.Locale;
75import java.util.Map;
76import java.util.Set;
77
78/**
79 * The Settings provider contains global system-level device preferences.
80 */
81public final class Settings {
82
83    // Intent actions for Settings
84
85    /**
86     * Activity Action: Show system settings.
87     * <p>
88     * Input: Nothing.
89     * <p>
90     * Output: Nothing.
91     */
92    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
93    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
94
95    /**
96     * Activity Action: Show settings to allow configuration of APNs.
97     * <p>
98     * Input: Nothing.
99     * <p>
100     * Output: Nothing.
101     */
102    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
103    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
104
105    /**
106     * Activity Action: Show settings to allow configuration of current location
107     * sources.
108     * <p>
109     * In some cases, a matching Activity may not exist, so ensure you
110     * safeguard against this.
111     * <p>
112     * Input: Nothing.
113     * <p>
114     * Output: Nothing.
115     */
116    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
117    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
118            "android.settings.LOCATION_SOURCE_SETTINGS";
119
120    /**
121     * Activity Action: Show settings to allow configuration of users.
122     * <p>
123     * In some cases, a matching Activity may not exist, so ensure you
124     * safeguard against this.
125     * <p>
126     * Input: Nothing.
127     * <p>
128     * Output: Nothing.
129     * @hide
130     */
131    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
132    public static final String ACTION_USER_SETTINGS =
133            "android.settings.USER_SETTINGS";
134
135    /**
136     * Activity Action: Show settings to allow configuration of wireless controls
137     * such as Wi-Fi, Bluetooth and Mobile networks.
138     * <p>
139     * In some cases, a matching Activity may not exist, so ensure you
140     * safeguard against this.
141     * <p>
142     * Input: Nothing.
143     * <p>
144     * Output: Nothing.
145     */
146    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
147    public static final String ACTION_WIRELESS_SETTINGS =
148            "android.settings.WIRELESS_SETTINGS";
149
150    /**
151     * Activity Action: Show tether provisioning activity.
152     *
153     * <p>
154     * In some cases, a matching Activity may not exist, so ensure you
155     * safeguard against this.
156     * <p>
157     * Input: {@link ConnectivityManager.EXTRA_TETHER_TYPE} should be included to specify which type
158     * of tethering should be checked. {@link ConnectivityManager.EXTRA_PROVISION_CALLBACK} should
159     * contain a {@link ResultReceiver} which will be called back with a tether result code.
160     * <p>
161     * Output: The result of the provisioning check.
162     * {@link ConnectivityManager.TETHER_ERROR_NO_ERROR} if successful,
163     * {@link ConnectivityManager.TETHER_ERROR_PROVISION_FAILED} for failure.
164     *
165     * @hide
166     */
167    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
168    public static final String ACTION_TETHER_PROVISIONING =
169            "android.settings.TETHER_PROVISIONING_UI";
170
171    /**
172     * Activity Action: Show settings to allow entering/exiting airplane mode.
173     * <p>
174     * In some cases, a matching Activity may not exist, so ensure you
175     * safeguard against this.
176     * <p>
177     * Input: Nothing.
178     * <p>
179     * Output: Nothing.
180     */
181    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
182    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
183            "android.settings.AIRPLANE_MODE_SETTINGS";
184
185    /**
186     * Activity Action: Modify Airplane mode settings using a voice command.
187     * <p>
188     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
189     * <p>
190     * This intent MUST be started using
191     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
192     * startVoiceActivity}.
193     * <p>
194     * Note: The activity implementing this intent MUST verify that
195     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
196     * modifying the setting.
197     * <p>
198     * Input: To tell which state airplane mode should be set to, add the
199     * {@link #EXTRA_AIRPLANE_MODE_ENABLED} extra to this Intent with the state specified.
200     * If the extra is not included, no changes will be made.
201     * <p>
202     * Output: Nothing.
203     */
204    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
205    public static final String ACTION_VOICE_CONTROL_AIRPLANE_MODE =
206            "android.settings.VOICE_CONTROL_AIRPLANE_MODE";
207
208    /**
209     * Activity Action: Show settings for accessibility modules.
210     * <p>
211     * In some cases, a matching Activity may not exist, so ensure you
212     * safeguard against this.
213     * <p>
214     * Input: Nothing.
215     * <p>
216     * Output: Nothing.
217     */
218    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
219    public static final String ACTION_ACCESSIBILITY_SETTINGS =
220            "android.settings.ACCESSIBILITY_SETTINGS";
221
222    /**
223     * Activity Action: Show settings to control access to usage information.
224     * <p>
225     * In some cases, a matching Activity may not exist, so ensure you
226     * safeguard against this.
227     * <p>
228     * Input: Nothing.
229     * <p>
230     * Output: Nothing.
231     */
232    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
233    public static final String ACTION_USAGE_ACCESS_SETTINGS =
234            "android.settings.USAGE_ACCESS_SETTINGS";
235
236    /**
237     * Activity Category: Show application settings related to usage access.
238     * <p>
239     * An activity that provides a user interface for adjusting usage access related
240     * preferences for its containing application. Optional but recommended for apps that
241     * use {@link android.Manifest.permission#PACKAGE_USAGE_STATS}.
242     * <p>
243     * The activity may define meta-data to describe what usage access is
244     * used for within their app with {@link #METADATA_USAGE_ACCESS_REASON}, which
245     * will be displayed in Settings.
246     * <p>
247     * Input: Nothing.
248     * <p>
249     * Output: Nothing.
250     */
251    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
252    public static final String INTENT_CATEGORY_USAGE_ACCESS_CONFIG =
253            "android.intent.category.USAGE_ACCESS_CONFIG";
254
255    /**
256     * Metadata key: Reason for needing usage access.
257     * <p>
258     * A key for metadata attached to an activity that receives action
259     * {@link #INTENT_CATEGORY_USAGE_ACCESS_CONFIG}, shown to the
260     * user as description of how the app uses usage access.
261     * <p>
262     */
263    public static final String METADATA_USAGE_ACCESS_REASON =
264            "android.settings.metadata.USAGE_ACCESS_REASON";
265
266    /**
267     * Activity Action: Show settings to allow configuration of security and
268     * location privacy.
269     * <p>
270     * In some cases, a matching Activity may not exist, so ensure you
271     * safeguard against this.
272     * <p>
273     * Input: Nothing.
274     * <p>
275     * Output: Nothing.
276     */
277    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
278    public static final String ACTION_SECURITY_SETTINGS =
279            "android.settings.SECURITY_SETTINGS";
280
281    /**
282     * Activity Action: Show trusted credentials settings, opening to the user tab,
283     * to allow management of installed credentials.
284     * <p>
285     * In some cases, a matching Activity may not exist, so ensure you
286     * safeguard against this.
287     * <p>
288     * Input: Nothing.
289     * <p>
290     * Output: Nothing.
291     * @hide
292     */
293    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
294    public static final String ACTION_TRUSTED_CREDENTIALS_USER =
295            "com.android.settings.TRUSTED_CREDENTIALS_USER";
296
297    /**
298     * Activity Action: Show dialog explaining that an installed CA cert may enable
299     * monitoring of encrypted network traffic.
300     * <p>
301     * In some cases, a matching Activity may not exist, so ensure you
302     * safeguard against this. Add {@link #EXTRA_NUMBER_OF_CERTIFICATES} extra to indicate the
303     * number of certificates.
304     * <p>
305     * Input: Nothing.
306     * <p>
307     * Output: Nothing.
308     * @hide
309     */
310    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
311    public static final String ACTION_MONITORING_CERT_INFO =
312            "com.android.settings.MONITORING_CERT_INFO";
313
314    /**
315     * Activity Action: Show settings to allow configuration of privacy options.
316     * <p>
317     * In some cases, a matching Activity may not exist, so ensure you
318     * safeguard against this.
319     * <p>
320     * Input: Nothing.
321     * <p>
322     * Output: Nothing.
323     */
324    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
325    public static final String ACTION_PRIVACY_SETTINGS =
326            "android.settings.PRIVACY_SETTINGS";
327
328    /**
329     * Activity Action: Show settings to allow configuration of VPN.
330     * <p>
331     * In some cases, a matching Activity may not exist, so ensure you
332     * safeguard against this.
333     * <p>
334     * Input: Nothing.
335     * <p>
336     * Output: Nothing.
337     */
338    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
339    public static final String ACTION_VPN_SETTINGS =
340            "android.settings.VPN_SETTINGS";
341
342    /**
343     * Activity Action: Show settings to allow configuration of Wi-Fi.
344     * <p>
345     * In some cases, a matching Activity may not exist, so ensure you
346     * safeguard against this.
347     * <p>
348     * Input: Nothing.
349     * <p>
350     * Output: Nothing.
351
352     */
353    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
354    public static final String ACTION_WIFI_SETTINGS =
355            "android.settings.WIFI_SETTINGS";
356
357    /**
358     * Activity Action: Show settings to allow configuration of a static IP
359     * address for Wi-Fi.
360     * <p>
361     * In some cases, a matching Activity may not exist, so ensure you safeguard
362     * against this.
363     * <p>
364     * Input: Nothing.
365     * <p>
366     * Output: Nothing.
367     */
368    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
369    public static final String ACTION_WIFI_IP_SETTINGS =
370            "android.settings.WIFI_IP_SETTINGS";
371
372    /**
373     * Activity Action: Show settings to allow configuration of Bluetooth.
374     * <p>
375     * In some cases, a matching Activity may not exist, so ensure you
376     * safeguard against this.
377     * <p>
378     * Input: Nothing.
379     * <p>
380     * Output: Nothing.
381     */
382    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
383    public static final String ACTION_BLUETOOTH_SETTINGS =
384            "android.settings.BLUETOOTH_SETTINGS";
385
386    /**
387     * Activity Action: Show settings to allow configuration of cast endpoints.
388     * <p>
389     * In some cases, a matching Activity may not exist, so ensure you
390     * safeguard against this.
391     * <p>
392     * Input: Nothing.
393     * <p>
394     * Output: Nothing.
395     */
396    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
397    public static final String ACTION_CAST_SETTINGS =
398            "android.settings.CAST_SETTINGS";
399
400    /**
401     * Activity Action: Show settings to allow configuration of date and time.
402     * <p>
403     * In some cases, a matching Activity may not exist, so ensure you
404     * safeguard against this.
405     * <p>
406     * Input: Nothing.
407     * <p>
408     * Output: Nothing.
409     */
410    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
411    public static final String ACTION_DATE_SETTINGS =
412            "android.settings.DATE_SETTINGS";
413
414    /**
415     * Activity Action: Show settings to allow configuration of sound and volume.
416     * <p>
417     * In some cases, a matching Activity may not exist, so ensure you
418     * safeguard against this.
419     * <p>
420     * Input: Nothing.
421     * <p>
422     * Output: Nothing.
423     */
424    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
425    public static final String ACTION_SOUND_SETTINGS =
426            "android.settings.SOUND_SETTINGS";
427
428    /**
429     * Activity Action: Show settings to allow configuration of display.
430     * <p>
431     * In some cases, a matching Activity may not exist, so ensure you
432     * safeguard against this.
433     * <p>
434     * Input: Nothing.
435     * <p>
436     * Output: Nothing.
437     */
438    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
439    public static final String ACTION_DISPLAY_SETTINGS =
440            "android.settings.DISPLAY_SETTINGS";
441
442    /**
443     * Activity Action: Show settings to allow configuration of locale.
444     * <p>
445     * In some cases, a matching Activity may not exist, so ensure you
446     * safeguard against this.
447     * <p>
448     * Input: Nothing.
449     * <p>
450     * Output: Nothing.
451     */
452    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
453    public static final String ACTION_LOCALE_SETTINGS =
454            "android.settings.LOCALE_SETTINGS";
455
456    /**
457     * Activity Action: Show settings to configure input methods, in particular
458     * allowing the user to enable input methods.
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_VOICE_INPUT_SETTINGS =
469            "android.settings.VOICE_INPUT_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_INPUT_METHOD_SETTINGS =
484            "android.settings.INPUT_METHOD_SETTINGS";
485
486    /**
487     * Activity Action: Show settings to enable/disable input method subtypes.
488     * <p>
489     * In some cases, a matching Activity may not exist, so ensure you
490     * safeguard against this.
491     * <p>
492     * To tell which input method's subtypes are displayed in the settings, add
493     * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
494     * If there is no extra in this Intent, subtypes from all installed input methods
495     * will be displayed in the settings.
496     *
497     * @see android.view.inputmethod.InputMethodInfo#getId
498     * <p>
499     * Input: Nothing.
500     * <p>
501     * Output: Nothing.
502     */
503    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
504    public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
505            "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
506
507    /**
508     * Activity Action: Show a dialog to select input method.
509     * <p>
510     * In some cases, a matching Activity may not exist, so ensure you
511     * safeguard against this.
512     * <p>
513     * Input: Nothing.
514     * <p>
515     * Output: Nothing.
516     * @hide
517     */
518    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
519    public static final String ACTION_SHOW_INPUT_METHOD_PICKER =
520            "android.settings.SHOW_INPUT_METHOD_PICKER";
521
522    /**
523     * Activity Action: Show settings to manage the user input dictionary.
524     * <p>
525     * Starting with {@link android.os.Build.VERSION_CODES#KITKAT},
526     * it is guaranteed there will always be an appropriate implementation for this Intent action.
527     * In prior releases of the platform this was optional, so ensure you safeguard against it.
528     * <p>
529     * Input: Nothing.
530     * <p>
531     * Output: Nothing.
532     */
533    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
534    public static final String ACTION_USER_DICTIONARY_SETTINGS =
535            "android.settings.USER_DICTIONARY_SETTINGS";
536
537    /**
538     * Activity Action: Show settings to configure the hardware keyboard.
539     * <p>
540     * In some cases, a matching Activity may not exist, so ensure you
541     * safeguard against this.
542     * <p>
543     * Input: Nothing.
544     * <p>
545     * Output: Nothing.
546     */
547    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
548    public static final String ACTION_HARD_KEYBOARD_SETTINGS =
549            "android.settings.HARD_KEYBOARD_SETTINGS";
550
551    /**
552     * Activity Action: Adds a word to the user dictionary.
553     * <p>
554     * In some cases, a matching Activity may not exist, so ensure you
555     * safeguard against this.
556     * <p>
557     * Input: An extra with key <code>word</code> that contains the word
558     * that should be added to the dictionary.
559     * <p>
560     * Output: Nothing.
561     *
562     * @hide
563     */
564    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
565    public static final String ACTION_USER_DICTIONARY_INSERT =
566            "com.android.settings.USER_DICTIONARY_INSERT";
567
568    /**
569     * Activity Action: Show settings to allow configuration of application-related settings.
570     * <p>
571     * In some cases, a matching Activity may not exist, so ensure you
572     * safeguard against this.
573     * <p>
574     * Input: Nothing.
575     * <p>
576     * Output: Nothing.
577     */
578    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
579    public static final String ACTION_APPLICATION_SETTINGS =
580            "android.settings.APPLICATION_SETTINGS";
581
582    /**
583     * Activity Action: Show settings to allow configuration of application
584     * development-related settings.  As of
585     * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} this action is
586     * a required part of the platform.
587     * <p>
588     * Input: Nothing.
589     * <p>
590     * Output: Nothing.
591     */
592    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
593    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
594            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
595
596    /**
597     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
598     * <p>
599     * In some cases, a matching Activity may not exist, so ensure you
600     * safeguard against this.
601     * <p>
602     * Input: Nothing.
603     * <p>
604     * Output: Nothing.
605     */
606    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
607    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
608            "android.settings.QUICK_LAUNCH_SETTINGS";
609
610    /**
611     * Activity Action: Show settings to manage installed applications.
612     * <p>
613     * In some cases, a matching Activity may not exist, so ensure you
614     * safeguard against this.
615     * <p>
616     * Input: Nothing.
617     * <p>
618     * Output: Nothing.
619     */
620    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
621    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
622            "android.settings.MANAGE_APPLICATIONS_SETTINGS";
623
624    /**
625     * Activity Action: Show settings to manage all applications.
626     * <p>
627     * In some cases, a matching Activity may not exist, so ensure you
628     * safeguard against this.
629     * <p>
630     * Input: Nothing.
631     * <p>
632     * Output: Nothing.
633     */
634    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
635    public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
636            "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";
637
638    /**
639     * Activity Action: Show screen for controlling which apps can draw on top of other apps.
640     * <p>
641     * In some cases, a matching Activity may not exist, so ensure you
642     * safeguard against this.
643     * <p>
644     * Input: Optionally, the Intent's data URI can specify the application package name to
645     * directly invoke the management GUI specific to the package name. For example
646     * "package:com.my.app".
647     * <p>
648     * Output: Nothing.
649     */
650    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
651    public static final String ACTION_MANAGE_OVERLAY_PERMISSION =
652            "android.settings.action.MANAGE_OVERLAY_PERMISSION";
653
654    /**
655     * Activity Action: Show screen for controlling which apps are allowed to write/modify
656     * system settings.
657     * <p>
658     * In some cases, a matching Activity may not exist, so ensure you
659     * safeguard against this.
660     * <p>
661     * Input: Optionally, the Intent's data URI can specify the application package name to
662     * directly invoke the management GUI specific to the package name. For example
663     * "package:com.my.app".
664     * <p>
665     * Output: Nothing.
666     */
667    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
668    public static final String ACTION_MANAGE_WRITE_SETTINGS =
669            "android.settings.action.MANAGE_WRITE_SETTINGS";
670
671    /**
672     * Activity Action: Show screen of details about a particular application.
673     * <p>
674     * In some cases, a matching Activity may not exist, so ensure you
675     * safeguard against this.
676     * <p>
677     * Input: The Intent's data URI specifies the application package name
678     * to be shown, with the "package" scheme.  That is "package:com.my.app".
679     * <p>
680     * Output: Nothing.
681     */
682    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
683    public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
684            "android.settings.APPLICATION_DETAILS_SETTINGS";
685
686    /**
687     * Activity Action: Show screen for controlling which apps can ignore battery optimizations.
688     * <p>
689     * Input: Nothing.
690     * <p>
691     * Output: Nothing.
692     * <p>
693     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
694     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
695     * already ignoring optimizations.  You can use
696     * {@link #ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS} to ask the user to put you
697     * on this list.
698     */
699    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
700    public static final String ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS =
701            "android.settings.IGNORE_BATTERY_OPTIMIZATION_SETTINGS";
702
703    /**
704     * Activity Action: Ask the user to allow an app to ignore battery optimizations (that is,
705     * put them on the whitelist of apps shown by
706     * {@link #ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS}).  For an app to use this, it also
707     * must hold the {@link android.Manifest.permission#REQUEST_IGNORE_BATTERY_OPTIMIZATIONS}
708     * permission.
709     * <p><b>Note:</b> most applications should <em>not</em> use this; there are many facilities
710     * provided by the platform for applications to operate correctly in the various power
711     * saving modes.  This is only for unusual applications that need to deeply control their own
712     * execution, at the potential expense of the user's battery life.  Note that these applications
713     * greatly run the risk of showing to the user as high power consumers on their device.</p>
714     * <p>
715     * Input: The Intent's data URI must specify the application package name
716     * to be shown, with the "package" scheme.  That is "package:com.my.app".
717     * <p>
718     * Output: Nothing.
719     * <p>
720     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
721     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
722     * already ignoring optimizations.
723     */
724    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
725    public static final String ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS =
726            "android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS";
727
728    /**
729     * Activity Action: Show screen for controlling background data
730     * restrictions for a particular application.
731     * <p>
732     * Input: Intent's data URI set with an application name, using the
733     * "package" schema (like "package:com.my.app").
734     *
735     * <p>
736     * Output: Nothing.
737     * <p>
738     * Applications can also use {@link android.net.ConnectivityManager#getRestrictBackgroundStatus
739     * ConnectivityManager#getRestrictBackgroundStatus()} to determine the
740     * status of the background data restrictions for them.
741     */
742    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
743    public static final String ACTION_IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS =
744            "android.settings.IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS";
745
746    /**
747     * @hide
748     * Activity Action: Show the "app ops" settings screen.
749     * <p>
750     * Input: Nothing.
751     * <p>
752     * Output: Nothing.
753     */
754    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
755    public static final String ACTION_APP_OPS_SETTINGS =
756            "android.settings.APP_OPS_SETTINGS";
757
758    /**
759     * Activity Action: Show settings for system update functionality.
760     * <p>
761     * In some cases, a matching Activity may not exist, so ensure you
762     * safeguard against this.
763     * <p>
764     * Input: Nothing.
765     * <p>
766     * Output: Nothing.
767     *
768     * @hide
769     */
770    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
771    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
772            "android.settings.SYSTEM_UPDATE_SETTINGS";
773
774    /**
775     * Activity Action: Show settings to allow configuration of sync settings.
776     * <p>
777     * In some cases, a matching Activity may not exist, so ensure you
778     * safeguard against this.
779     * <p>
780     * The account types available to add via the add account button may be restricted by adding an
781     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
782     * authorities. Only account types which can sync with that content provider will be offered to
783     * the user.
784     * <p>
785     * Input: Nothing.
786     * <p>
787     * Output: Nothing.
788     */
789    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
790    public static final String ACTION_SYNC_SETTINGS =
791            "android.settings.SYNC_SETTINGS";
792
793    /**
794     * Activity Action: Show add account screen for creating a new account.
795     * <p>
796     * In some cases, a matching Activity may not exist, so ensure you
797     * safeguard against this.
798     * <p>
799     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
800     * extra to the Intent with one or more syncable content provider's authorities.  Only account
801     * types which can sync with that content provider will be offered to the user.
802     * <p>
803     * Account types can also be filtered by adding an {@link #EXTRA_ACCOUNT_TYPES} extra to the
804     * Intent with one or more account types.
805     * <p>
806     * Input: Nothing.
807     * <p>
808     * Output: Nothing.
809     */
810    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
811    public static final String ACTION_ADD_ACCOUNT =
812            "android.settings.ADD_ACCOUNT_SETTINGS";
813
814    /**
815     * Activity Action: Show settings for selecting the network operator.
816     * <p>
817     * In some cases, a matching Activity may not exist, so ensure you
818     * safeguard against this.
819     * <p>
820     * Input: Nothing.
821     * <p>
822     * Output: Nothing.
823     */
824    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
825    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
826            "android.settings.NETWORK_OPERATOR_SETTINGS";
827
828    /**
829     * Activity Action: Show settings for selection of 2G/3G.
830     * <p>
831     * In some cases, a matching Activity may not exist, so ensure you
832     * safeguard against this.
833     * <p>
834     * Input: Nothing.
835     * <p>
836     * Output: Nothing.
837     */
838    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
839    public static final String ACTION_DATA_ROAMING_SETTINGS =
840            "android.settings.DATA_ROAMING_SETTINGS";
841
842    /**
843     * Activity Action: Show settings for internal storage.
844     * <p>
845     * In some cases, a matching Activity may not exist, so ensure you
846     * safeguard against this.
847     * <p>
848     * Input: Nothing.
849     * <p>
850     * Output: Nothing.
851     */
852    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
853    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
854            "android.settings.INTERNAL_STORAGE_SETTINGS";
855    /**
856     * Activity Action: Show settings for memory card storage.
857     * <p>
858     * In some cases, a matching Activity may not exist, so ensure you
859     * safeguard against this.
860     * <p>
861     * Input: Nothing.
862     * <p>
863     * Output: Nothing.
864     */
865    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
866    public static final String ACTION_MEMORY_CARD_SETTINGS =
867            "android.settings.MEMORY_CARD_SETTINGS";
868
869    /**
870     * Activity Action: Show settings for global search.
871     * <p>
872     * In some cases, a matching Activity may not exist, so ensure you
873     * safeguard against this.
874     * <p>
875     * Input: Nothing.
876     * <p>
877     * Output: Nothing
878     */
879    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
880    public static final String ACTION_SEARCH_SETTINGS =
881        "android.search.action.SEARCH_SETTINGS";
882
883    /**
884     * Activity Action: Show general device information settings (serial
885     * number, software version, phone number, etc.).
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_DEVICE_INFO_SETTINGS =
896        "android.settings.DEVICE_INFO_SETTINGS";
897
898    /**
899     * Activity Action: Show NFC settings.
900     * <p>
901     * This shows UI that allows NFC to be turned on or off.
902     * <p>
903     * In some cases, a matching Activity may not exist, so ensure you
904     * safeguard against this.
905     * <p>
906     * Input: Nothing.
907     * <p>
908     * Output: Nothing
909     * @see android.nfc.NfcAdapter#isEnabled()
910     */
911    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
912    public static final String ACTION_NFC_SETTINGS = "android.settings.NFC_SETTINGS";
913
914    /**
915     * Activity Action: Show NFC Sharing settings.
916     * <p>
917     * This shows UI that allows NDEF Push (Android Beam) to be turned on or
918     * off.
919     * <p>
920     * In some cases, a matching Activity may not exist, so ensure you
921     * safeguard against this.
922     * <p>
923     * Input: Nothing.
924     * <p>
925     * Output: Nothing
926     * @see android.nfc.NfcAdapter#isNdefPushEnabled()
927     */
928    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
929    public static final String ACTION_NFCSHARING_SETTINGS =
930        "android.settings.NFCSHARING_SETTINGS";
931
932    /**
933     * Activity Action: Show NFC Tap & Pay settings
934     * <p>
935     * This shows UI that allows the user to configure Tap&Pay
936     * settings.
937     * <p>
938     * In some cases, a matching Activity may not exist, so ensure you
939     * safeguard against this.
940     * <p>
941     * Input: Nothing.
942     * <p>
943     * Output: Nothing
944     */
945    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
946    public static final String ACTION_NFC_PAYMENT_SETTINGS =
947        "android.settings.NFC_PAYMENT_SETTINGS";
948
949    /**
950     * Activity Action: Show Daydream settings.
951     * <p>
952     * In some cases, a matching Activity may not exist, so ensure you
953     * safeguard against this.
954     * <p>
955     * Input: Nothing.
956     * <p>
957     * Output: Nothing.
958     * @see android.service.dreams.DreamService
959     */
960    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
961    public static final String ACTION_DREAM_SETTINGS = "android.settings.DREAM_SETTINGS";
962
963    /**
964     * Activity Action: Show Notification listener settings.
965     * <p>
966     * In some cases, a matching Activity may not exist, so ensure you
967     * safeguard against this.
968     * <p>
969     * Input: Nothing.
970     * <p>
971     * Output: Nothing.
972     * @see android.service.notification.NotificationListenerService
973     */
974    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
975    public static final String ACTION_NOTIFICATION_LISTENER_SETTINGS
976            = "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS";
977
978    /**
979     * Activity Action: Show Do Not Disturb access settings.
980     * <p>
981     * Users can grant and deny access to Do Not Disturb configuration from here.
982     * See {@link android.app.NotificationManager#isNotificationPolicyAccessGranted()} for more
983     * details.
984     * <p>
985     * Input: Nothing.
986     * <p>
987     * Output: Nothing.
988     */
989    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
990    public static final String ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS
991            = "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS";
992
993    /**
994     * @hide
995     */
996    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
997    public static final String ACTION_CONDITION_PROVIDER_SETTINGS
998            = "android.settings.ACTION_CONDITION_PROVIDER_SETTINGS";
999
1000    /**
1001     * Activity Action: Show settings for video captioning.
1002     * <p>
1003     * In some cases, a matching Activity may not exist, so ensure you safeguard
1004     * against this.
1005     * <p>
1006     * Input: Nothing.
1007     * <p>
1008     * Output: Nothing.
1009     */
1010    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1011    public static final String ACTION_CAPTIONING_SETTINGS = "android.settings.CAPTIONING_SETTINGS";
1012
1013    /**
1014     * Activity Action: Show the top level print settings.
1015     * <p>
1016     * In some cases, a matching Activity may not exist, so ensure you
1017     * safeguard against this.
1018     * <p>
1019     * Input: Nothing.
1020     * <p>
1021     * Output: Nothing.
1022     */
1023    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1024    public static final String ACTION_PRINT_SETTINGS =
1025            "android.settings.ACTION_PRINT_SETTINGS";
1026
1027    /**
1028     * Activity Action: Show Zen Mode configuration settings.
1029     *
1030     * @hide
1031     */
1032    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1033    public static final String ACTION_ZEN_MODE_SETTINGS = "android.settings.ZEN_MODE_SETTINGS";
1034
1035    /**
1036     * Activity Action: Show Zen Mode priority configuration settings.
1037     *
1038     * @hide
1039     */
1040    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1041    public static final String ACTION_ZEN_MODE_PRIORITY_SETTINGS
1042            = "android.settings.ZEN_MODE_PRIORITY_SETTINGS";
1043
1044    /**
1045     * Activity Action: Show Zen Mode automation configuration settings.
1046     *
1047     * @hide
1048     */
1049    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1050    public static final String ACTION_ZEN_MODE_AUTOMATION_SETTINGS
1051            = "android.settings.ZEN_MODE_AUTOMATION_SETTINGS";
1052
1053    /**
1054     * Activity Action: Modify do not disturb mode settings.
1055     * <p>
1056     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1057     * <p>
1058     * This intent MUST be started using
1059     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1060     * startVoiceActivity}.
1061     * <p>
1062     * Note: The Activity implementing this intent MUST verify that
1063     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction}.
1064     * returns true before modifying the setting.
1065     * <p>
1066     * Input: The optional {@link #EXTRA_DO_NOT_DISTURB_MODE_MINUTES} extra can be used to indicate
1067     * how long the user wishes to avoid interruptions for. The optional
1068     * {@link #EXTRA_DO_NOT_DISTURB_MODE_ENABLED} extra can be to indicate if the user is
1069     * enabling or disabling do not disturb mode. If either extra is not included, the
1070     * user maybe asked to provide the value.
1071     * <p>
1072     * Output: Nothing.
1073     */
1074    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1075    public static final String ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE =
1076            "android.settings.VOICE_CONTROL_DO_NOT_DISTURB_MODE";
1077
1078    /**
1079     * Activity Action: Show Zen Mode schedule rule configuration settings.
1080     *
1081     * @hide
1082     */
1083    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1084    public static final String ACTION_ZEN_MODE_SCHEDULE_RULE_SETTINGS
1085            = "android.settings.ZEN_MODE_SCHEDULE_RULE_SETTINGS";
1086
1087    /**
1088     * Activity Action: Show Zen Mode event rule configuration settings.
1089     *
1090     * @hide
1091     */
1092    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1093    public static final String ACTION_ZEN_MODE_EVENT_RULE_SETTINGS
1094            = "android.settings.ZEN_MODE_EVENT_RULE_SETTINGS";
1095
1096    /**
1097     * Activity Action: Show Zen Mode external rule configuration settings.
1098     *
1099     * @hide
1100     */
1101    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1102    public static final String ACTION_ZEN_MODE_EXTERNAL_RULE_SETTINGS
1103            = "android.settings.ZEN_MODE_EXTERNAL_RULE_SETTINGS";
1104
1105    /**
1106     * Activity Action: Show the regulatory information screen for the device.
1107     * <p>
1108     * In some cases, a matching Activity may not exist, so ensure you safeguard
1109     * against this.
1110     * <p>
1111     * Input: Nothing.
1112     * <p>
1113     * Output: Nothing.
1114     */
1115    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1116    public static final String
1117            ACTION_SHOW_REGULATORY_INFO = "android.settings.SHOW_REGULATORY_INFO";
1118
1119    /**
1120     * Activity Action: Show Device Name Settings.
1121     * <p>
1122     * In some cases, a matching Activity may not exist, so ensure you safeguard
1123     * against this.
1124     *
1125     * @hide
1126     */
1127    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1128    public static final String DEVICE_NAME_SETTINGS = "android.settings.DEVICE_NAME";
1129
1130    /**
1131     * Activity Action: Show pairing settings.
1132     * <p>
1133     * In some cases, a matching Activity may not exist, so ensure you safeguard
1134     * against this.
1135     *
1136     * @hide
1137     */
1138    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1139    public static final String ACTION_PAIRING_SETTINGS = "android.settings.PAIRING_SETTINGS";
1140
1141    /**
1142     * Activity Action: Show battery saver settings.
1143     * <p>
1144     * In some cases, a matching Activity may not exist, so ensure you safeguard
1145     * against this.
1146     */
1147    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1148    public static final String ACTION_BATTERY_SAVER_SETTINGS
1149            = "android.settings.BATTERY_SAVER_SETTINGS";
1150
1151    /**
1152     * Activity Action: Modify Battery Saver mode setting using a voice command.
1153     * <p>
1154     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
1155     * <p>
1156     * This intent MUST be started using
1157     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
1158     * startVoiceActivity}.
1159     * <p>
1160     * Note: The activity implementing this intent MUST verify that
1161     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
1162     * modifying the setting.
1163     * <p>
1164     * Input: To tell which state batter saver mode should be set to, add the
1165     * {@link #EXTRA_BATTERY_SAVER_MODE_ENABLED} extra to this Intent with the state specified.
1166     * If the extra is not included, no changes will be made.
1167     * <p>
1168     * Output: Nothing.
1169     */
1170    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1171    public static final String ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE =
1172            "android.settings.VOICE_CONTROL_BATTERY_SAVER_MODE";
1173
1174    /**
1175     * Activity Action: Show Home selection settings. If there are multiple activities
1176     * that can satisfy the {@link Intent#CATEGORY_HOME} intent, this screen allows you
1177     * to pick your preferred activity.
1178     */
1179    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1180    public static final String ACTION_HOME_SETTINGS
1181            = "android.settings.HOME_SETTINGS";
1182
1183
1184
1185    /**
1186     * Activity Action: Show Default apps settings.
1187     * <p>
1188     * In some cases, a matching Activity may not exist, so ensure you
1189     * safeguard against this.
1190     * <p>
1191     * Input: Nothing.
1192     * <p>
1193     * Output: Nothing.
1194     */
1195    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1196    public static final String ACTION_MANAGE_DEFAULT_APPS_SETTINGS
1197            = "android.settings.MANAGE_DEFAULT_APPS_SETTINGS";
1198
1199    /**
1200     * Activity Action: Show notification settings.
1201     *
1202     * @hide
1203     */
1204    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1205    public static final String ACTION_NOTIFICATION_SETTINGS
1206            = "android.settings.NOTIFICATION_SETTINGS";
1207
1208    /**
1209     * Activity Action: Show notification settings for a single app.
1210     *
1211     * @hide
1212     */
1213    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1214    public static final String ACTION_APP_NOTIFICATION_SETTINGS
1215            = "android.settings.APP_NOTIFICATION_SETTINGS";
1216
1217    /**
1218     * Activity Action: Show notification redaction settings.
1219     *
1220     * @hide
1221     */
1222    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1223    public static final String ACTION_APP_NOTIFICATION_REDACTION
1224            = "android.settings.ACTION_APP_NOTIFICATION_REDACTION";
1225
1226    /** @hide */ public static final String EXTRA_APP_UID = "app_uid";
1227    /** @hide */ public static final String EXTRA_APP_PACKAGE = "app_package";
1228
1229    /**
1230     * Activity Action: Show a dialog with disabled by policy message.
1231     * <p> If an user action is disabled by policy, this dialog can be triggered to let
1232     * the user know about this.
1233     * <p>
1234     * Input: Nothing.
1235     * <p>
1236     * Output: Nothing.
1237     *
1238     * @hide
1239     */
1240    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1241    public static final String ACTION_SHOW_ADMIN_SUPPORT_DETAILS
1242            = "android.settings.SHOW_ADMIN_SUPPORT_DETAILS";
1243
1244    /**
1245     * Activity Action: Show a dialog for remote bugreport flow.
1246     * <p>
1247     * Input: Nothing.
1248     * <p>
1249     * Output: Nothing.
1250     *
1251     * @hide
1252     */
1253    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1254    public static final String ACTION_SHOW_REMOTE_BUGREPORT_DIALOG
1255            = "android.settings.SHOW_REMOTE_BUGREPORT_DIALOG";
1256
1257    /**
1258     * Activity Action: Show VR listener settings.
1259     * <p>
1260     * Input: Nothing.
1261     * <p>
1262     * Output: Nothing.
1263     *
1264     * @see android.service.vr.VrListenerService
1265     */
1266    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1267    public static final String ACTION_VR_LISTENER_SETTINGS
1268            = "android.settings.VR_LISTENER_SETTINGS";
1269
1270    /**
1271     * Activity Action: Allows user to select current webview implementation.
1272     * <p>
1273     * Input: Nothing.
1274     * <p>
1275     * Output: Nothing.
1276     */
1277    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1278    public static final String ACTION_WEBVIEW_SETTINGS = "android.settings.WEBVIEW_SETTINGS";
1279
1280    /**
1281     * Activity Action: Show the Deletion Helper settings.
1282     * <p>
1283     * Input: Nothing.
1284     * <p>
1285     * Output: Nothing.
1286     */
1287    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
1288    public static final String ACTION_DELETION_HELPER_SETTINGS
1289            = "android.settings.DELETION_HELPER_SETTINGS";
1290
1291    // End of Intent actions for Settings
1292
1293    /**
1294     * @hide - Private call() method on SettingsProvider to read from 'system' table.
1295     */
1296    public static final String CALL_METHOD_GET_SYSTEM = "GET_system";
1297
1298    /**
1299     * @hide - Private call() method on SettingsProvider to read from 'secure' table.
1300     */
1301    public static final String CALL_METHOD_GET_SECURE = "GET_secure";
1302
1303    /**
1304     * @hide - Private call() method on SettingsProvider to read from 'global' table.
1305     */
1306    public static final String CALL_METHOD_GET_GLOBAL = "GET_global";
1307
1308    /**
1309     * @hide - Specifies that the caller of the fast-path call()-based flow tracks
1310     * the settings generation in order to cache values locally. If this key is
1311     * mapped to a <code>null</code> string extra in the request bundle, the response
1312     * bundle will contain the same key mapped to a parcelable extra which would be
1313     * an {@link android.util.MemoryIntArray}. The response will also contain an
1314     * integer mapped to the {@link #CALL_METHOD_GENERATION_INDEX_KEY} which is the
1315     * index in the array clients should use to lookup the generation. For efficiency
1316     * the caller should request the generation tracking memory array only if it
1317     * doesn't already have it.
1318     *
1319     * @see #CALL_METHOD_GENERATION_INDEX_KEY
1320     */
1321    public static final String CALL_METHOD_TRACK_GENERATION_KEY = "_track_generation";
1322
1323    /**
1324     * @hide Key with the location in the {@link android.util.MemoryIntArray} where
1325     * to look up the generation id of the backing table.
1326     *
1327     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1328     */
1329    public static final String CALL_METHOD_GENERATION_INDEX_KEY = "_generation_index";
1330
1331    /**
1332     * @hide - User handle argument extra to the fast-path call()-based requests
1333     */
1334    public static final String CALL_METHOD_USER_KEY = "_user";
1335
1336    /** @hide - Private call() method to write to 'system' table */
1337    public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
1338
1339    /** @hide - Private call() method to write to 'secure' table */
1340    public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
1341
1342    /** @hide - Private call() method to write to 'global' table */
1343    public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";
1344
1345    /**
1346     * Activity Extra: Limit available options in launched activity based on the given authority.
1347     * <p>
1348     * This can be passed as an extra field in an Activity Intent with one or more syncable content
1349     * provider's authorities as a String[]. This field is used by some intents to alter the
1350     * behavior of the called activity.
1351     * <p>
1352     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
1353     * on the authority given.
1354     */
1355    public static final String EXTRA_AUTHORITIES = "authorities";
1356
1357    /**
1358     * Activity Extra: Limit available options in launched activity based on the given account
1359     * types.
1360     * <p>
1361     * This can be passed as an extra field in an Activity Intent with one or more account types
1362     * as a String[]. This field is used by some intents to alter the behavior of the called
1363     * activity.
1364     * <p>
1365     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
1366     * list.
1367     */
1368    public static final String EXTRA_ACCOUNT_TYPES = "account_types";
1369
1370    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
1371
1372    /**
1373     * Activity Extra: The device identifier to act upon.
1374     * <p>
1375     * This can be passed as an extra field in an Activity Intent with a single
1376     * InputDeviceIdentifier. This field is used by some activities to jump straight into the
1377     * settings for the given device.
1378     * <p>
1379     * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
1380     * dialog for the given device.
1381     * @hide
1382     */
1383    public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";
1384
1385    /**
1386     * Activity Extra: Enable or disable Airplane Mode.
1387     * <p>
1388     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
1389     * intent as a boolean to indicate if it should be enabled.
1390     */
1391    public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";
1392
1393    /**
1394     * Activity Extra: Enable or disable Battery saver mode.
1395     * <p>
1396     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
1397     * intent as a boolean to indicate if it should be enabled.
1398     */
1399    public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
1400            "android.settings.extra.battery_saver_mode_enabled";
1401
1402    /**
1403     * Activity Extra: Enable or disable Do Not Disturb mode.
1404     * <p>
1405     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1406     * intent as a boolean to indicate if it should be enabled.
1407     */
1408    public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
1409            "android.settings.extra.do_not_disturb_mode_enabled";
1410
1411    /**
1412     * Activity Extra: How many minutes to enable do not disturb mode for.
1413     * <p>
1414     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1415     * intent to indicate how long do not disturb mode should be enabled for.
1416     */
1417    public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
1418            "android.settings.extra.do_not_disturb_mode_minutes";
1419
1420    /**
1421     * Activity Extra: Number of certificates
1422     * <p>
1423     * This can be passed as an extra field to the {@link #ACTION_MONITORING_CERT_INFO}
1424     * intent to indicate the number of certificates
1425     * @hide
1426     */
1427    public static final String EXTRA_NUMBER_OF_CERTIFICATES =
1428            "android.settings.extra.number_of_certificates";
1429
1430    private static final String JID_RESOURCE_PREFIX = "android";
1431
1432    public static final String AUTHORITY = "settings";
1433
1434    private static final String TAG = "Settings";
1435    private static final boolean LOCAL_LOGV = false;
1436
1437    // Lock ensures that when enabling/disabling the master location switch, we don't end up
1438    // with a partial enable/disable state in multi-threaded situations.
1439    private static final Object mLocationSettingsLock = new Object();
1440
1441    public static class SettingNotFoundException extends AndroidException {
1442        public SettingNotFoundException(String msg) {
1443            super(msg);
1444        }
1445    }
1446
1447    /**
1448     * Common base for tables of name/value settings.
1449     */
1450    public static class NameValueTable implements BaseColumns {
1451        public static final String NAME = "name";
1452        public static final String VALUE = "value";
1453
1454        protected static boolean putString(ContentResolver resolver, Uri uri,
1455                String name, String value) {
1456            // The database will take care of replacing duplicates.
1457            try {
1458                ContentValues values = new ContentValues();
1459                values.put(NAME, name);
1460                values.put(VALUE, value);
1461                resolver.insert(uri, values);
1462                return true;
1463            } catch (SQLException e) {
1464                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
1465                return false;
1466            }
1467        }
1468
1469        public static Uri getUriFor(Uri uri, String name) {
1470            return Uri.withAppendedPath(uri, name);
1471        }
1472    }
1473
1474    private static final class GenerationTracker {
1475        private final MemoryIntArray mArray;
1476        private final Runnable mErrorHandler;
1477        private final int mIndex;
1478        private int mCurrentGeneration;
1479
1480        public GenerationTracker(@NonNull MemoryIntArray array, int index,
1481                Runnable errorHandler) {
1482            mArray = array;
1483            mIndex = index;
1484            mErrorHandler = errorHandler;
1485            mCurrentGeneration = readCurrentGeneration();
1486        }
1487
1488        public boolean isGenerationChanged() {
1489            final int currentGeneration = readCurrentGeneration();
1490            if (currentGeneration >= 0) {
1491                if (currentGeneration == mCurrentGeneration) {
1492                    return false;
1493                }
1494                mCurrentGeneration = currentGeneration;
1495            }
1496            return true;
1497        }
1498
1499        private int readCurrentGeneration() {
1500            try {
1501                return mArray.get(mIndex);
1502            } catch (IOException e) {
1503                Log.e(TAG, "Error getting current generation", e);
1504                if (mErrorHandler != null) {
1505                    mErrorHandler.run();
1506                }
1507            }
1508            return -1;
1509        }
1510
1511        public void destroy() {
1512            try {
1513                mArray.close();
1514            } catch (IOException e) {
1515                Log.e(TAG, "Error closing backing array", e);
1516                if (mErrorHandler != null) {
1517                    mErrorHandler.run();
1518                }
1519            }
1520        }
1521    }
1522
1523    // Thread-safe.
1524    private static class NameValueCache {
1525        private static final boolean DEBUG = false;
1526
1527        private final Uri mUri;
1528
1529        private static final String[] SELECT_VALUE =
1530            new String[] { Settings.NameValueTable.VALUE };
1531        private static final String NAME_EQ_PLACEHOLDER = "name=?";
1532
1533        // Must synchronize on 'this' to access mValues and mValuesVersion.
1534        private final HashMap<String, String> mValues = new HashMap<String, String>();
1535
1536        // Initially null; set lazily and held forever.  Synchronized on 'this'.
1537        private IContentProvider mContentProvider = null;
1538
1539        // The method we'll call (or null, to not use) on the provider
1540        // for the fast path of retrieving settings.
1541        private final String mCallGetCommand;
1542        private final String mCallSetCommand;
1543
1544        @GuardedBy("this")
1545        private GenerationTracker mGenerationTracker;
1546
1547        public NameValueCache(Uri uri, String getCommand, String setCommand) {
1548            mUri = uri;
1549            mCallGetCommand = getCommand;
1550            mCallSetCommand = setCommand;
1551        }
1552
1553        private IContentProvider lazyGetProvider(ContentResolver cr) {
1554            IContentProvider cp = null;
1555            synchronized (this) {
1556                cp = mContentProvider;
1557                if (cp == null) {
1558                    cp = mContentProvider = cr.acquireProvider(mUri.getAuthority());
1559                }
1560            }
1561            return cp;
1562        }
1563
1564        public boolean putStringForUser(ContentResolver cr, String name, String value,
1565                final int userHandle) {
1566            try {
1567                Bundle arg = new Bundle();
1568                arg.putString(Settings.NameValueTable.VALUE, value);
1569                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
1570                IContentProvider cp = lazyGetProvider(cr);
1571                cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
1572            } catch (RemoteException e) {
1573                Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
1574                return false;
1575            }
1576            return true;
1577        }
1578
1579        public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
1580            final boolean isSelf = (userHandle == UserHandle.myUserId());
1581            if (isSelf) {
1582                synchronized (this) {
1583                    if (mGenerationTracker != null) {
1584                        if (mGenerationTracker.isGenerationChanged()) {
1585                            if (DEBUG) {
1586                                Log.i(TAG, "Generation changed for type:"
1587                                        + mUri.getPath() + " in package:"
1588                                        + cr.getPackageName() +" and user:" + userHandle);
1589                            }
1590                            mValues.clear();
1591                        } else if (mValues.containsKey(name)) {
1592                            return mValues.get(name);
1593                        }
1594                    }
1595                }
1596            } else {
1597                if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
1598                        + " by user " + UserHandle.myUserId() + " so skipping cache");
1599            }
1600
1601            IContentProvider cp = lazyGetProvider(cr);
1602
1603            // Try the fast path first, not using query().  If this
1604            // fails (alternate Settings provider that doesn't support
1605            // this interface?) then we fall back to the query/table
1606            // interface.
1607            if (mCallGetCommand != null) {
1608                try {
1609                    Bundle args = null;
1610                    if (!isSelf) {
1611                        args = new Bundle();
1612                        args.putInt(CALL_METHOD_USER_KEY, userHandle);
1613                    }
1614                    boolean needsGenerationTracker = false;
1615                    synchronized (this) {
1616                        if (isSelf && mGenerationTracker == null) {
1617                            needsGenerationTracker = true;
1618                            if (args == null) {
1619                                args = new Bundle();
1620                            }
1621                            args.putString(CALL_METHOD_TRACK_GENERATION_KEY, null);
1622                            if (DEBUG) {
1623                                Log.i(TAG, "Requested generation tracker for type: "+ mUri.getPath()
1624                                        + " in package:" + cr.getPackageName() +" and user:"
1625                                        + userHandle);
1626                            }
1627                        }
1628                    }
1629                    Bundle b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
1630                    if (b != null) {
1631                        String value = b.getString(Settings.NameValueTable.VALUE);
1632                        // Don't update our cache for reads of other users' data
1633                        if (isSelf) {
1634                            synchronized (this) {
1635                                if (needsGenerationTracker) {
1636                                    MemoryIntArray array = b.getParcelable(
1637                                            CALL_METHOD_TRACK_GENERATION_KEY);
1638                                    final int index = b.getInt(
1639                                            CALL_METHOD_GENERATION_INDEX_KEY, -1);
1640                                    if (array != null && index >= 0) {
1641                                        if (DEBUG) {
1642                                            Log.i(TAG, "Received generation tracker for type:"
1643                                                    + mUri.getPath() + " in package:"
1644                                                    + cr.getPackageName() + " and user:"
1645                                                    + userHandle + " with index:" + index);
1646                                        }
1647                                        mGenerationTracker = new GenerationTracker(array, index,
1648                                                () -> {
1649                                            synchronized (this) {
1650                                                Log.e(TAG, "Error accessing generation"
1651                                                        + " tracker - removing");
1652                                                if (mGenerationTracker != null) {
1653                                                    GenerationTracker generationTracker =
1654                                                            mGenerationTracker;
1655                                                    mGenerationTracker = null;
1656                                                    generationTracker.destroy();
1657                                                    mValues.clear();
1658                                                }
1659                                            }
1660                                        });
1661                                    }
1662                                }
1663                                mValues.put(name, value);
1664                            }
1665                        } else {
1666                            if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
1667                                    + " by " + UserHandle.myUserId()
1668                                    + " so not updating cache");
1669                        }
1670                        return value;
1671                    }
1672                    // If the response Bundle is null, we fall through
1673                    // to the query interface below.
1674                } catch (RemoteException e) {
1675                    // Not supported by the remote side?  Fall through
1676                    // to query().
1677                }
1678            }
1679
1680            Cursor c = null;
1681            try {
1682                c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE, NAME_EQ_PLACEHOLDER,
1683                             new String[]{name}, null, null);
1684                if (c == null) {
1685                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
1686                    return null;
1687                }
1688
1689                String value = c.moveToNext() ? c.getString(0) : null;
1690                synchronized (this) {
1691                    mValues.put(name, value);
1692                }
1693                if (LOCAL_LOGV) {
1694                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
1695                            name + " = " + (value == null ? "(null)" : value));
1696                }
1697                return value;
1698            } catch (RemoteException e) {
1699                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
1700                return null;  // Return null, but don't cache it.
1701            } finally {
1702                if (c != null) c.close();
1703            }
1704        }
1705    }
1706
1707    /**
1708     * Checks if the specified context can draw on top of other apps. As of API
1709     * level 23, an app cannot draw on top of other apps unless it declares the
1710     * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its
1711     * manifest, <em>and</em> the user specifically grants the app this
1712     * capability. To prompt the user to grant this approval, the app must send an
1713     * intent with the action
1714     * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}, which
1715     * causes the system to display a permission management screen.
1716     *
1717     * @param context App context.
1718     * @return true if the specified context can draw on top of other apps, false otherwise
1719     */
1720    public static boolean canDrawOverlays(Context context) {
1721        return Settings.isCallingPackageAllowedToDrawOverlays(context, Process.myUid(),
1722                context.getOpPackageName(), false);
1723    }
1724
1725    /**
1726     * System settings, containing miscellaneous system preferences.  This
1727     * table holds simple name/value pairs.  There are convenience
1728     * functions for accessing individual settings entries.
1729     */
1730    public static final class System extends NameValueTable {
1731        private static final float DEFAULT_FONT_SCALE = 1.0f;
1732
1733        /** @hide */
1734        public static interface Validator {
1735            public boolean validate(String value);
1736        }
1737
1738        /**
1739         * The content:// style URL for this table
1740         */
1741        public static final Uri CONTENT_URI =
1742            Uri.parse("content://" + AUTHORITY + "/system");
1743
1744        private static final NameValueCache sNameValueCache = new NameValueCache(
1745                CONTENT_URI,
1746                CALL_METHOD_GET_SYSTEM,
1747                CALL_METHOD_PUT_SYSTEM);
1748
1749        private static final HashSet<String> MOVED_TO_SECURE;
1750        static {
1751            MOVED_TO_SECURE = new HashSet<String>(30);
1752            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
1753            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
1754            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
1755            MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
1756            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
1757            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
1758            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
1759            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
1760            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
1761            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
1762            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
1763            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
1764            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
1765            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
1766            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
1767            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
1768            MOVED_TO_SECURE.add(Secure.WIFI_ON);
1769            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
1770            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
1771            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
1772            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
1773            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
1774            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
1775            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
1776            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
1777            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
1778            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
1779            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
1780
1781            // At one time in System, then Global, but now back in Secure
1782            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
1783        }
1784
1785        private static final HashSet<String> MOVED_TO_GLOBAL;
1786        private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
1787        static {
1788            MOVED_TO_GLOBAL = new HashSet<String>();
1789            MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<String>();
1790
1791            // these were originally in system but migrated to secure in the past,
1792            // so are duplicated in the Secure.* namespace
1793            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
1794            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
1795            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
1796            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
1797            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
1798            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);
1799
1800            // these are moving directly from system to global
1801            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
1802            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
1803            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
1804            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
1805            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
1806            MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
1807            MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
1808            MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
1809            MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
1810            MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
1811            MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
1812            MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
1813            MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
1814            MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
1815            MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
1816            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
1817            MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
1818            MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
1819            MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
1820            MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
1821            MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
1822            MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
1823            MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
1824            MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
1825            MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
1826            MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
1827            MOVED_TO_GLOBAL.add(Settings.Global.SHOW_PROCESSES);
1828            MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
1829            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
1830            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
1831            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
1832            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
1833            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
1834            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
1835            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
1836            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
1837        }
1838
1839        private static final Validator sBooleanValidator =
1840                new DiscreteValueValidator(new String[] {"0", "1"});
1841
1842        private static final Validator sNonNegativeIntegerValidator = new Validator() {
1843            @Override
1844            public boolean validate(String value) {
1845                try {
1846                    return Integer.parseInt(value) >= 0;
1847                } catch (NumberFormatException e) {
1848                    return false;
1849                }
1850            }
1851        };
1852
1853        private static final Validator sUriValidator = new Validator() {
1854            @Override
1855            public boolean validate(String value) {
1856                try {
1857                    Uri.decode(value);
1858                    return true;
1859                } catch (IllegalArgumentException e) {
1860                    return false;
1861                }
1862            }
1863        };
1864
1865        private static final Validator sLenientIpAddressValidator = new Validator() {
1866            private static final int MAX_IPV6_LENGTH = 45;
1867
1868            @Override
1869            public boolean validate(String value) {
1870                return value.length() <= MAX_IPV6_LENGTH;
1871            }
1872        };
1873
1874        /** @hide */
1875        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
1876            outKeySet.addAll(MOVED_TO_GLOBAL);
1877            outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
1878        }
1879
1880        /** @hide */
1881        public static void getMovedToSecureSettings(Set<String> outKeySet) {
1882            outKeySet.addAll(MOVED_TO_SECURE);
1883        }
1884
1885        /** @hide */
1886        public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
1887            outKeySet.addAll(MOVED_TO_GLOBAL);
1888        }
1889
1890        /**
1891         * Look up a name in the database.
1892         * @param resolver to access the database with
1893         * @param name to look up in the table
1894         * @return the corresponding value, or null if not present
1895         */
1896        public static String getString(ContentResolver resolver, String name) {
1897            return getStringForUser(resolver, name, UserHandle.myUserId());
1898        }
1899
1900        /** @hide */
1901        public static String getStringForUser(ContentResolver resolver, String name,
1902                int userHandle) {
1903            if (MOVED_TO_SECURE.contains(name)) {
1904                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1905                        + " to android.provider.Settings.Secure, returning read-only value.");
1906                return Secure.getStringForUser(resolver, name, userHandle);
1907            }
1908            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1909                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1910                        + " to android.provider.Settings.Global, returning read-only value.");
1911                return Global.getStringForUser(resolver, name, userHandle);
1912            }
1913            return sNameValueCache.getStringForUser(resolver, name, userHandle);
1914        }
1915
1916        /**
1917         * Store a name/value pair into the database.
1918         * @param resolver to access the database with
1919         * @param name to store
1920         * @param value to associate with the name
1921         * @return true if the value was set, false on database errors
1922         */
1923        public static boolean putString(ContentResolver resolver, String name, String value) {
1924            return putStringForUser(resolver, name, value, UserHandle.myUserId());
1925        }
1926
1927        /** @hide */
1928        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
1929                int userHandle) {
1930            if (MOVED_TO_SECURE.contains(name)) {
1931                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1932                        + " to android.provider.Settings.Secure, value is unchanged.");
1933                return false;
1934            }
1935            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1936                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1937                        + " to android.provider.Settings.Global, value is unchanged.");
1938                return false;
1939            }
1940            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
1941        }
1942
1943        /**
1944         * Construct the content URI for a particular name/value pair,
1945         * useful for monitoring changes with a ContentObserver.
1946         * @param name to look up in the table
1947         * @return the corresponding content URI, or null if not present
1948         */
1949        public static Uri getUriFor(String name) {
1950            if (MOVED_TO_SECURE.contains(name)) {
1951                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1952                    + " to android.provider.Settings.Secure, returning Secure URI.");
1953                return Secure.getUriFor(Secure.CONTENT_URI, name);
1954            }
1955            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1956                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1957                        + " to android.provider.Settings.Global, returning read-only global URI.");
1958                return Global.getUriFor(Global.CONTENT_URI, name);
1959            }
1960            return getUriFor(CONTENT_URI, name);
1961        }
1962
1963        /**
1964         * Convenience function for retrieving a single system settings value
1965         * as an integer.  Note that internally setting values are always
1966         * stored as strings; this function converts the string to an integer
1967         * for you.  The default value will be returned if the setting is
1968         * not defined or not an integer.
1969         *
1970         * @param cr The ContentResolver to access.
1971         * @param name The name of the setting to retrieve.
1972         * @param def Value to return if the setting is not defined.
1973         *
1974         * @return The setting's current value, or 'def' if it is not defined
1975         * or not a valid integer.
1976         */
1977        public static int getInt(ContentResolver cr, String name, int def) {
1978            return getIntForUser(cr, name, def, UserHandle.myUserId());
1979        }
1980
1981        /** @hide */
1982        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
1983            String v = getStringForUser(cr, name, userHandle);
1984            try {
1985                return v != null ? Integer.parseInt(v) : def;
1986            } catch (NumberFormatException e) {
1987                return def;
1988            }
1989        }
1990
1991        /**
1992         * Convenience function for retrieving a single system settings value
1993         * as an integer.  Note that internally setting values are always
1994         * stored as strings; this function converts the string to an integer
1995         * for you.
1996         * <p>
1997         * This version does not take a default value.  If the setting has not
1998         * been set, or the string value is not a number,
1999         * it throws {@link SettingNotFoundException}.
2000         *
2001         * @param cr The ContentResolver to access.
2002         * @param name The name of the setting to retrieve.
2003         *
2004         * @throws SettingNotFoundException Thrown if a setting by the given
2005         * name can't be found or the setting value is not an integer.
2006         *
2007         * @return The setting's current value.
2008         */
2009        public static int getInt(ContentResolver cr, String name)
2010                throws SettingNotFoundException {
2011            return getIntForUser(cr, name, UserHandle.myUserId());
2012        }
2013
2014        /** @hide */
2015        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
2016                throws SettingNotFoundException {
2017            String v = getStringForUser(cr, name, userHandle);
2018            try {
2019                return Integer.parseInt(v);
2020            } catch (NumberFormatException e) {
2021                throw new SettingNotFoundException(name);
2022            }
2023        }
2024
2025        /**
2026         * Convenience function for updating a single settings value as an
2027         * integer. This will either create a new entry in the table if the
2028         * given name does not exist, or modify the value of the existing row
2029         * with that name.  Note that internally setting values are always
2030         * stored as strings, so this function converts the given value to a
2031         * string before storing it.
2032         *
2033         * @param cr The ContentResolver to access.
2034         * @param name The name of the setting to modify.
2035         * @param value The new value for the setting.
2036         * @return true if the value was set, false on database errors
2037         */
2038        public static boolean putInt(ContentResolver cr, String name, int value) {
2039            return putIntForUser(cr, name, value, UserHandle.myUserId());
2040        }
2041
2042        /** @hide */
2043        public static boolean putIntForUser(ContentResolver cr, String name, int value,
2044                int userHandle) {
2045            return putStringForUser(cr, name, Integer.toString(value), userHandle);
2046        }
2047
2048        /**
2049         * Convenience function for retrieving a single system settings value
2050         * as a {@code long}.  Note that internally setting values are always
2051         * stored as strings; this function converts the string to a {@code long}
2052         * for you.  The default value will be returned if the setting is
2053         * not defined or not a {@code long}.
2054         *
2055         * @param cr The ContentResolver to access.
2056         * @param name The name of the setting to retrieve.
2057         * @param def Value to return if the setting is not defined.
2058         *
2059         * @return The setting's current value, or 'def' if it is not defined
2060         * or not a valid {@code long}.
2061         */
2062        public static long getLong(ContentResolver cr, String name, long def) {
2063            return getLongForUser(cr, name, def, UserHandle.myUserId());
2064        }
2065
2066        /** @hide */
2067        public static long getLongForUser(ContentResolver cr, String name, long def,
2068                int userHandle) {
2069            String valString = getStringForUser(cr, name, userHandle);
2070            long value;
2071            try {
2072                value = valString != null ? Long.parseLong(valString) : def;
2073            } catch (NumberFormatException e) {
2074                value = def;
2075            }
2076            return value;
2077        }
2078
2079        /**
2080         * Convenience function for retrieving a single system settings value
2081         * as a {@code long}.  Note that internally setting values are always
2082         * stored as strings; this function converts the string to a {@code long}
2083         * for you.
2084         * <p>
2085         * This version does not take a default value.  If the setting has not
2086         * been set, or the string value is not a number,
2087         * it throws {@link SettingNotFoundException}.
2088         *
2089         * @param cr The ContentResolver to access.
2090         * @param name The name of the setting to retrieve.
2091         *
2092         * @return The setting's current value.
2093         * @throws SettingNotFoundException Thrown if a setting by the given
2094         * name can't be found or the setting value is not an integer.
2095         */
2096        public static long getLong(ContentResolver cr, String name)
2097                throws SettingNotFoundException {
2098            return getLongForUser(cr, name, UserHandle.myUserId());
2099        }
2100
2101        /** @hide */
2102        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
2103                throws SettingNotFoundException {
2104            String valString = getStringForUser(cr, name, userHandle);
2105            try {
2106                return Long.parseLong(valString);
2107            } catch (NumberFormatException e) {
2108                throw new SettingNotFoundException(name);
2109            }
2110        }
2111
2112        /**
2113         * Convenience function for updating a single settings value as a long
2114         * integer. This will either create a new entry in the table if the
2115         * given name does not exist, or modify the value of the existing row
2116         * with that name.  Note that internally setting values are always
2117         * stored as strings, so this function converts the given value to a
2118         * string before storing it.
2119         *
2120         * @param cr The ContentResolver to access.
2121         * @param name The name of the setting to modify.
2122         * @param value The new value for the setting.
2123         * @return true if the value was set, false on database errors
2124         */
2125        public static boolean putLong(ContentResolver cr, String name, long value) {
2126            return putLongForUser(cr, name, value, UserHandle.myUserId());
2127        }
2128
2129        /** @hide */
2130        public static boolean putLongForUser(ContentResolver cr, String name, long value,
2131                int userHandle) {
2132            return putStringForUser(cr, name, Long.toString(value), userHandle);
2133        }
2134
2135        /**
2136         * Convenience function for retrieving a single system settings value
2137         * as a floating point number.  Note that internally setting values are
2138         * always stored as strings; this function converts the string to an
2139         * float for you. The default value will be returned if the setting
2140         * is not defined or not a valid float.
2141         *
2142         * @param cr The ContentResolver to access.
2143         * @param name The name of the setting to retrieve.
2144         * @param def Value to return if the setting is not defined.
2145         *
2146         * @return The setting's current value, or 'def' if it is not defined
2147         * or not a valid float.
2148         */
2149        public static float getFloat(ContentResolver cr, String name, float def) {
2150            return getFloatForUser(cr, name, def, UserHandle.myUserId());
2151        }
2152
2153        /** @hide */
2154        public static float getFloatForUser(ContentResolver cr, String name, float def,
2155                int userHandle) {
2156            String v = getStringForUser(cr, name, userHandle);
2157            try {
2158                return v != null ? Float.parseFloat(v) : def;
2159            } catch (NumberFormatException e) {
2160                return def;
2161            }
2162        }
2163
2164        /**
2165         * Convenience function for retrieving a single system settings value
2166         * as a float.  Note that internally setting values are always
2167         * stored as strings; this function converts the string to a float
2168         * for you.
2169         * <p>
2170         * This version does not take a default value.  If the setting has not
2171         * been set, or the string value is not a number,
2172         * it throws {@link SettingNotFoundException}.
2173         *
2174         * @param cr The ContentResolver to access.
2175         * @param name The name of the setting to retrieve.
2176         *
2177         * @throws SettingNotFoundException Thrown if a setting by the given
2178         * name can't be found or the setting value is not a float.
2179         *
2180         * @return The setting's current value.
2181         */
2182        public static float getFloat(ContentResolver cr, String name)
2183                throws SettingNotFoundException {
2184            return getFloatForUser(cr, name, UserHandle.myUserId());
2185        }
2186
2187        /** @hide */
2188        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
2189                throws SettingNotFoundException {
2190            String v = getStringForUser(cr, name, userHandle);
2191            if (v == null) {
2192                throw new SettingNotFoundException(name);
2193            }
2194            try {
2195                return Float.parseFloat(v);
2196            } catch (NumberFormatException e) {
2197                throw new SettingNotFoundException(name);
2198            }
2199        }
2200
2201        /**
2202         * Convenience function for updating a single settings value as a
2203         * floating point number. This will either create a new entry in the
2204         * table if the given name does not exist, or modify the value of the
2205         * existing row with that name.  Note that internally setting values
2206         * are always stored as strings, so this function converts the given
2207         * value to a string before storing it.
2208         *
2209         * @param cr The ContentResolver to access.
2210         * @param name The name of the setting to modify.
2211         * @param value The new value for the setting.
2212         * @return true if the value was set, false on database errors
2213         */
2214        public static boolean putFloat(ContentResolver cr, String name, float value) {
2215            return putFloatForUser(cr, name, value, UserHandle.myUserId());
2216        }
2217
2218        /** @hide */
2219        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
2220                int userHandle) {
2221            return putStringForUser(cr, name, Float.toString(value), userHandle);
2222        }
2223
2224        /**
2225         * Convenience function to read all of the current
2226         * configuration-related settings into a
2227         * {@link Configuration} object.
2228         *
2229         * @param cr The ContentResolver to access.
2230         * @param outConfig Where to place the configuration settings.
2231         */
2232        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
2233            getConfigurationForUser(cr, outConfig, UserHandle.myUserId());
2234        }
2235
2236        /** @hide */
2237        public static void getConfigurationForUser(ContentResolver cr, Configuration outConfig,
2238                int userHandle) {
2239            outConfig.fontScale = Settings.System.getFloatForUser(
2240                    cr, FONT_SCALE, DEFAULT_FONT_SCALE, userHandle);
2241            if (outConfig.fontScale < 0) {
2242                outConfig.fontScale = DEFAULT_FONT_SCALE;
2243            }
2244            outConfig.setLocales(LocaleList.forLanguageTags(
2245                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle)));
2246        }
2247
2248        /**
2249         * @hide Erase the fields in the Configuration that should be applied
2250         * by the settings.
2251         */
2252        public static void clearConfiguration(Configuration inoutConfig) {
2253            inoutConfig.fontScale = 0;
2254            if (!inoutConfig.userSetLocale && !inoutConfig.getLocales().isEmpty()) {
2255                inoutConfig.setLocales(LocaleList.getEmptyLocaleList());
2256            }
2257        }
2258
2259        /**
2260         * Convenience function to write a batch of configuration-related
2261         * settings from a {@link Configuration} object.
2262         *
2263         * @param cr The ContentResolver to access.
2264         * @param config The settings to write.
2265         * @return true if the values were set, false on database errors
2266         */
2267        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
2268            return putConfigurationForUser(cr, config, UserHandle.myUserId());
2269        }
2270
2271        /** @hide */
2272        public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
2273                int userHandle) {
2274            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
2275                    Settings.System.putStringForUser(
2276                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
2277        }
2278
2279        /** @hide */
2280        public static boolean hasInterestingConfigurationChanges(int changes) {
2281            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
2282                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
2283        }
2284
2285        /** @deprecated - Do not use */
2286        @Deprecated
2287        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
2288            return getShowGTalkServiceStatusForUser(cr, UserHandle.myUserId());
2289        }
2290
2291        /**
2292         * @hide
2293         * @deprecated - Do not use
2294         */
2295        public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
2296                int userHandle) {
2297            return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
2298        }
2299
2300        /** @deprecated - Do not use */
2301        @Deprecated
2302        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
2303            setShowGTalkServiceStatusForUser(cr, flag, UserHandle.myUserId());
2304        }
2305
2306        /**
2307         * @hide
2308         * @deprecated - Do not use
2309         */
2310        @Deprecated
2311        public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
2312                int userHandle) {
2313            putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
2314        }
2315
2316        private static final class DiscreteValueValidator implements Validator {
2317            private final String[] mValues;
2318
2319            public DiscreteValueValidator(String[] values) {
2320                mValues = values;
2321            }
2322
2323            @Override
2324            public boolean validate(String value) {
2325                return ArrayUtils.contains(mValues, value);
2326            }
2327        }
2328
2329        private static final class InclusiveIntegerRangeValidator implements Validator {
2330            private final int mMin;
2331            private final int mMax;
2332
2333            public InclusiveIntegerRangeValidator(int min, int max) {
2334                mMin = min;
2335                mMax = max;
2336            }
2337
2338            @Override
2339            public boolean validate(String value) {
2340                try {
2341                    final int intValue = Integer.parseInt(value);
2342                    return intValue >= mMin && intValue <= mMax;
2343                } catch (NumberFormatException e) {
2344                    return false;
2345                }
2346            }
2347        }
2348
2349        private static final class InclusiveFloatRangeValidator implements Validator {
2350            private final float mMin;
2351            private final float mMax;
2352
2353            public InclusiveFloatRangeValidator(float min, float max) {
2354                mMin = min;
2355                mMax = max;
2356            }
2357
2358            @Override
2359            public boolean validate(String value) {
2360                try {
2361                    final float floatValue = Float.parseFloat(value);
2362                    return floatValue >= mMin && floatValue <= mMax;
2363                } catch (NumberFormatException e) {
2364                    return false;
2365                }
2366            }
2367        }
2368
2369        /**
2370         * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
2371         */
2372        @Deprecated
2373        public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;
2374
2375        /**
2376         * What happens when the user presses the end call button if they're not
2377         * on a call.<br/>
2378         * <b>Values:</b><br/>
2379         * 0 - The end button does nothing.<br/>
2380         * 1 - The end button goes to the home screen.<br/>
2381         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
2382         * 3 - The end button goes to the home screen.  If the user is already on the
2383         * home screen, it puts the device to sleep.
2384         */
2385        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
2386
2387        private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
2388                new InclusiveIntegerRangeValidator(0, 3);
2389
2390        /**
2391         * END_BUTTON_BEHAVIOR value for "go home".
2392         * @hide
2393         */
2394        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
2395
2396        /**
2397         * END_BUTTON_BEHAVIOR value for "go to sleep".
2398         * @hide
2399         */
2400        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
2401
2402        /**
2403         * END_BUTTON_BEHAVIOR default value.
2404         * @hide
2405         */
2406        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
2407
2408        /**
2409         * Is advanced settings mode turned on. 0 == no, 1 == yes
2410         * @hide
2411         */
2412        public static final String ADVANCED_SETTINGS = "advanced_settings";
2413
2414        private static final Validator ADVANCED_SETTINGS_VALIDATOR = sBooleanValidator;
2415
2416        /**
2417         * ADVANCED_SETTINGS default value.
2418         * @hide
2419         */
2420        public static final int ADVANCED_SETTINGS_DEFAULT = 0;
2421
2422        /**
2423         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
2424         */
2425        @Deprecated
2426        public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;
2427
2428        /**
2429         * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
2430         */
2431        @Deprecated
2432        public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;
2433
2434        /**
2435         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
2436         */
2437        @Deprecated
2438        public static final String RADIO_WIFI = Global.RADIO_WIFI;
2439
2440        /**
2441         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
2442         * {@hide}
2443         */
2444        @Deprecated
2445        public static final String RADIO_WIMAX = Global.RADIO_WIMAX;
2446
2447        /**
2448         * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
2449         */
2450        @Deprecated
2451        public static final String RADIO_CELL = Global.RADIO_CELL;
2452
2453        /**
2454         * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
2455         */
2456        @Deprecated
2457        public static final String RADIO_NFC = Global.RADIO_NFC;
2458
2459        /**
2460         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
2461         */
2462        @Deprecated
2463        public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;
2464
2465        /**
2466         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
2467         *
2468         * {@hide}
2469         */
2470        @Deprecated
2471        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
2472                Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;
2473
2474        /**
2475         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
2476         */
2477        @Deprecated
2478        public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;
2479
2480        /**
2481         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
2482         */
2483        @Deprecated
2484        public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;
2485
2486        /**
2487         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
2488         */
2489        @Deprecated
2490        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
2491                Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;
2492
2493        /**
2494         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
2495         */
2496        @Deprecated
2497        public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;
2498
2499        /**
2500         * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
2501         */
2502        @Deprecated
2503        public static final String MODE_RINGER = Global.MODE_RINGER;
2504
2505        /**
2506         * Whether to use static IP and other static network attributes.
2507         * <p>
2508         * Set to 1 for true and 0 for false.
2509         *
2510         * @deprecated Use {@link WifiManager} instead
2511         */
2512        @Deprecated
2513        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
2514
2515        private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = sBooleanValidator;
2516
2517        /**
2518         * The static IP address.
2519         * <p>
2520         * Example: "192.168.1.51"
2521         *
2522         * @deprecated Use {@link WifiManager} instead
2523         */
2524        @Deprecated
2525        public static final String WIFI_STATIC_IP = "wifi_static_ip";
2526
2527        private static final Validator WIFI_STATIC_IP_VALIDATOR = sLenientIpAddressValidator;
2528
2529        /**
2530         * If using static IP, the gateway's IP address.
2531         * <p>
2532         * Example: "192.168.1.1"
2533         *
2534         * @deprecated Use {@link WifiManager} instead
2535         */
2536        @Deprecated
2537        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
2538
2539        private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = sLenientIpAddressValidator;
2540
2541        /**
2542         * If using static IP, the net mask.
2543         * <p>
2544         * Example: "255.255.255.0"
2545         *
2546         * @deprecated Use {@link WifiManager} instead
2547         */
2548        @Deprecated
2549        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
2550
2551        private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = sLenientIpAddressValidator;
2552
2553        /**
2554         * If using static IP, the primary DNS's IP address.
2555         * <p>
2556         * Example: "192.168.1.1"
2557         *
2558         * @deprecated Use {@link WifiManager} instead
2559         */
2560        @Deprecated
2561        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
2562
2563        private static final Validator WIFI_STATIC_DNS1_VALIDATOR = sLenientIpAddressValidator;
2564
2565        /**
2566         * If using static IP, the secondary DNS's IP address.
2567         * <p>
2568         * Example: "192.168.1.2"
2569         *
2570         * @deprecated Use {@link WifiManager} instead
2571         */
2572        @Deprecated
2573        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
2574
2575        private static final Validator WIFI_STATIC_DNS2_VALIDATOR = sLenientIpAddressValidator;
2576
2577        /**
2578         * Determines whether remote devices may discover and/or connect to
2579         * this device.
2580         * <P>Type: INT</P>
2581         * 2 -- discoverable and connectable
2582         * 1 -- connectable but not discoverable
2583         * 0 -- neither connectable nor discoverable
2584         */
2585        public static final String BLUETOOTH_DISCOVERABILITY =
2586            "bluetooth_discoverability";
2587
2588        private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
2589                new InclusiveIntegerRangeValidator(0, 2);
2590
2591        /**
2592         * Bluetooth discoverability timeout.  If this value is nonzero, then
2593         * Bluetooth becomes discoverable for a certain number of seconds,
2594         * after which is becomes simply connectable.  The value is in seconds.
2595         */
2596        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
2597            "bluetooth_discoverability_timeout";
2598
2599        private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
2600                sNonNegativeIntegerValidator;
2601
2602        /**
2603         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
2604         * instead
2605         */
2606        @Deprecated
2607        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
2608
2609        /**
2610         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
2611         * instead
2612         */
2613        @Deprecated
2614        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
2615
2616        /**
2617         * @deprecated Use
2618         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
2619         * instead
2620         */
2621        @Deprecated
2622        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
2623            "lock_pattern_tactile_feedback_enabled";
2624
2625        /**
2626         * A formatted string of the next alarm that is set, or the empty string
2627         * if there is no alarm set.
2628         *
2629         * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
2630         */
2631        @Deprecated
2632        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
2633
2634        private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
2635            private static final int MAX_LENGTH = 1000;
2636
2637            @Override
2638            public boolean validate(String value) {
2639                // TODO: No idea what the correct format is.
2640                return value == null || value.length() < MAX_LENGTH;
2641            }
2642        };
2643
2644        /**
2645         * Scaling factor for fonts, float.
2646         */
2647        public static final String FONT_SCALE = "font_scale";
2648
2649        private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
2650            @Override
2651            public boolean validate(String value) {
2652                try {
2653                    return Float.parseFloat(value) >= 0;
2654                } catch (NumberFormatException e) {
2655                    return false;
2656                }
2657            }
2658        };
2659
2660        /**
2661         * The serialized system locale value.
2662         *
2663         * Do not use this value directory.
2664         * To get system locale, use {@link android.util.LocaleList#getDefault} instead.
2665         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
2666         * instead.
2667         * @hide
2668         */
2669        public static final String SYSTEM_LOCALES = "system_locales";
2670
2671
2672        /**
2673         * Name of an application package to be debugged.
2674         *
2675         * @deprecated Use {@link Global#DEBUG_APP} instead
2676         */
2677        @Deprecated
2678        public static final String DEBUG_APP = Global.DEBUG_APP;
2679
2680        /**
2681         * If 1, when launching DEBUG_APP it will wait for the debugger before
2682         * starting user code.  If 0, it will run normally.
2683         *
2684         * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
2685         */
2686        @Deprecated
2687        public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;
2688
2689        /**
2690         * Whether or not to dim the screen. 0=no  1=yes
2691         * @deprecated This setting is no longer used.
2692         */
2693        @Deprecated
2694        public static final String DIM_SCREEN = "dim_screen";
2695
2696        private static final Validator DIM_SCREEN_VALIDATOR = sBooleanValidator;
2697
2698        /**
2699         * The amount of time in milliseconds before the device goes to sleep or begins
2700         * to dream after a period of inactivity.  This value is also known as the
2701         * user activity timeout period since the screen isn't necessarily turned off
2702         * when it expires.
2703         */
2704        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
2705
2706        private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR = sNonNegativeIntegerValidator;
2707
2708        /**
2709         * The screen backlight brightness between 0 and 255.
2710         */
2711        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
2712
2713        private static final Validator SCREEN_BRIGHTNESS_VALIDATOR =
2714                new InclusiveIntegerRangeValidator(0, 255);
2715
2716        /**
2717         * Control whether to enable automatic brightness mode.
2718         */
2719        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
2720
2721        private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = sBooleanValidator;
2722
2723        /**
2724         * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
2725         * or less (<0.0 >-1.0) bright.
2726         * @hide
2727         */
2728        public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";
2729
2730        private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
2731                new InclusiveFloatRangeValidator(-1, 1);
2732
2733        /**
2734         * SCREEN_BRIGHTNESS_MODE value for manual mode.
2735         */
2736        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
2737
2738        /**
2739         * SCREEN_BRIGHTNESS_MODE value for automatic mode.
2740         */
2741        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
2742
2743        /**
2744         * Control whether the process CPU usage meter should be shown.
2745         *
2746         * @deprecated Use {@link Global#SHOW_PROCESSES} instead
2747         */
2748        @Deprecated
2749        public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;
2750
2751        /**
2752         * If 1, the activity manager will aggressively finish activities and
2753         * processes as soon as they are no longer needed.  If 0, the normal
2754         * extended lifetime is used.
2755         *
2756         * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
2757         */
2758        @Deprecated
2759        public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;
2760
2761        /**
2762         * Determines which streams are affected by ringer mode changes. The
2763         * stream type's bit should be set to 1 if it should be muted when going
2764         * into an inaudible ringer mode.
2765         */
2766        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
2767
2768        private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
2769                sNonNegativeIntegerValidator;
2770
2771        /**
2772          * Determines which streams are affected by mute. The
2773          * stream type's bit should be set to 1 if it should be muted when a mute request
2774          * is received.
2775          */
2776        public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
2777
2778        private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
2779                sNonNegativeIntegerValidator;
2780
2781        /**
2782         * Whether vibrate is on for different events. This is used internally,
2783         * changing this value will not change the vibrate. See AudioManager.
2784         */
2785        public static final String VIBRATE_ON = "vibrate_on";
2786
2787        private static final Validator VIBRATE_ON_VALIDATOR = sBooleanValidator;
2788
2789        /**
2790         * If 1, redirects the system vibrator to all currently attached input devices
2791         * that support vibration.  If there are no such input devices, then the system
2792         * vibrator is used instead.
2793         * If 0, does not register the system vibrator.
2794         *
2795         * This setting is mainly intended to provide a compatibility mechanism for
2796         * applications that only know about the system vibrator and do not use the
2797         * input device vibrator API.
2798         *
2799         * @hide
2800         */
2801        public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";
2802
2803        private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = sBooleanValidator;
2804
2805        /**
2806         * Ringer volume. This is used internally, changing this value will not
2807         * change the volume. See AudioManager.
2808         *
2809         * @removed Not used by anything since API 2.
2810         */
2811        public static final String VOLUME_RING = "volume_ring";
2812
2813        /**
2814         * System/notifications volume. This is used internally, changing this
2815         * value will not change the volume. See AudioManager.
2816         *
2817         * @removed Not used by anything since API 2.
2818         */
2819        public static final String VOLUME_SYSTEM = "volume_system";
2820
2821        /**
2822         * Voice call volume. This is used internally, changing this value will
2823         * not change the volume. See AudioManager.
2824         *
2825         * @removed Not used by anything since API 2.
2826         */
2827        public static final String VOLUME_VOICE = "volume_voice";
2828
2829        /**
2830         * Music/media/gaming volume. This is used internally, changing this
2831         * value will not change the volume. See AudioManager.
2832         *
2833         * @removed Not used by anything since API 2.
2834         */
2835        public static final String VOLUME_MUSIC = "volume_music";
2836
2837        /**
2838         * Alarm volume. This is used internally, changing this
2839         * value will not change the volume. See AudioManager.
2840         *
2841         * @removed Not used by anything since API 2.
2842         */
2843        public static final String VOLUME_ALARM = "volume_alarm";
2844
2845        /**
2846         * Notification volume. This is used internally, changing this
2847         * value will not change the volume. See AudioManager.
2848         *
2849         * @removed Not used by anything since API 2.
2850         */
2851        public static final String VOLUME_NOTIFICATION = "volume_notification";
2852
2853        /**
2854         * Bluetooth Headset volume. This is used internally, changing this value will
2855         * not change the volume. See AudioManager.
2856         *
2857         * @removed Not used by anything since API 2.
2858         */
2859        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
2860
2861        /**
2862         * Master volume (float in the range 0.0f to 1.0f).
2863         *
2864         * @hide
2865         */
2866        public static final String VOLUME_MASTER = "volume_master";
2867
2868        /**
2869         * Master mono (int 1 = mono, 0 = normal).
2870         *
2871         * @hide
2872         */
2873        public static final String MASTER_MONO = "master_mono";
2874
2875        private static final Validator MASTER_MONO_VALIDATOR = sBooleanValidator;
2876
2877        /**
2878         * Whether the notifications should use the ring volume (value of 1) or
2879         * a separate notification volume (value of 0). In most cases, users
2880         * will have this enabled so the notification and ringer volumes will be
2881         * the same. However, power users can disable this and use the separate
2882         * notification volume control.
2883         * <p>
2884         * Note: This is a one-off setting that will be removed in the future
2885         * when there is profile support. For this reason, it is kept hidden
2886         * from the public APIs.
2887         *
2888         * @hide
2889         * @deprecated
2890         */
2891        @Deprecated
2892        public static final String NOTIFICATIONS_USE_RING_VOLUME =
2893            "notifications_use_ring_volume";
2894
2895        private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = sBooleanValidator;
2896
2897        /**
2898         * Whether silent mode should allow vibration feedback. This is used
2899         * internally in AudioService and the Sound settings activity to
2900         * coordinate decoupling of vibrate and silent modes. This setting
2901         * will likely be removed in a future release with support for
2902         * audio/vibe feedback profiles.
2903         *
2904         * Not used anymore. On devices with vibrator, the user explicitly selects
2905         * silent or vibrate mode.
2906         * Kept for use by legacy database upgrade code in DatabaseHelper.
2907         * @hide
2908         */
2909        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
2910
2911        private static final Validator VIBRATE_IN_SILENT_VALIDATOR = sBooleanValidator;
2912
2913        /**
2914         * The mapping of stream type (integer) to its setting.
2915         *
2916         * @removed  Not used by anything since API 2.
2917         */
2918        public static final String[] VOLUME_SETTINGS = {
2919            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
2920            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
2921        };
2922
2923        /**
2924         * Appended to various volume related settings to record the previous
2925         * values before they the settings were affected by a silent/vibrate
2926         * ringer mode change.
2927         *
2928         * @removed  Not used by anything since API 2.
2929         */
2930        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
2931
2932        /**
2933         * Persistent store for the system-wide default ringtone URI.
2934         * <p>
2935         * If you need to play the default ringtone at any given time, it is recommended
2936         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
2937         * to the set default ringtone at the time of playing.
2938         *
2939         * @see #DEFAULT_RINGTONE_URI
2940         */
2941        public static final String RINGTONE = "ringtone";
2942
2943        private static final Validator RINGTONE_VALIDATOR = sUriValidator;
2944
2945        /**
2946         * A {@link Uri} that will point to the current default ringtone at any
2947         * given time.
2948         * <p>
2949         * If the current default ringtone is in the DRM provider and the caller
2950         * does not have permission, the exception will be a
2951         * FileNotFoundException.
2952         */
2953        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
2954
2955        /** {@hide} */
2956        public static final String RINGTONE_CACHE = "ringtone_cache";
2957        /** {@hide} */
2958        public static final Uri RINGTONE_CACHE_URI = getUriFor(RINGTONE_CACHE);
2959
2960        /**
2961         * Persistent store for the system-wide default notification sound.
2962         *
2963         * @see #RINGTONE
2964         * @see #DEFAULT_NOTIFICATION_URI
2965         */
2966        public static final String NOTIFICATION_SOUND = "notification_sound";
2967
2968        private static final Validator NOTIFICATION_SOUND_VALIDATOR = sUriValidator;
2969
2970        /**
2971         * A {@link Uri} that will point to the current default notification
2972         * sound at any given time.
2973         *
2974         * @see #DEFAULT_RINGTONE_URI
2975         */
2976        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
2977
2978        /** {@hide} */
2979        public static final String NOTIFICATION_SOUND_CACHE = "notification_sound_cache";
2980        /** {@hide} */
2981        public static final Uri NOTIFICATION_SOUND_CACHE_URI = getUriFor(NOTIFICATION_SOUND_CACHE);
2982
2983        /**
2984         * Persistent store for the system-wide default alarm alert.
2985         *
2986         * @see #RINGTONE
2987         * @see #DEFAULT_ALARM_ALERT_URI
2988         */
2989        public static final String ALARM_ALERT = "alarm_alert";
2990
2991        private static final Validator ALARM_ALERT_VALIDATOR = sUriValidator;
2992
2993        /**
2994         * A {@link Uri} that will point to the current default alarm alert at
2995         * any given time.
2996         *
2997         * @see #DEFAULT_ALARM_ALERT_URI
2998         */
2999        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
3000
3001        /** {@hide} */
3002        public static final String ALARM_ALERT_CACHE = "alarm_alert_cache";
3003        /** {@hide} */
3004        public static final Uri ALARM_ALERT_CACHE_URI = getUriFor(ALARM_ALERT_CACHE);
3005
3006        /**
3007         * Persistent store for the system default media button event receiver.
3008         *
3009         * @hide
3010         */
3011        public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";
3012
3013        private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = new Validator() {
3014            @Override
3015            public boolean validate(String value) {
3016                try {
3017                    ComponentName.unflattenFromString(value);
3018                    return true;
3019                } catch (NullPointerException e) {
3020                    return false;
3021                }
3022            }
3023        };
3024
3025        /**
3026         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
3027         */
3028        public static final String TEXT_AUTO_REPLACE = "auto_replace";
3029
3030        private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = sBooleanValidator;
3031
3032        /**
3033         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
3034         */
3035        public static final String TEXT_AUTO_CAPS = "auto_caps";
3036
3037        private static final Validator TEXT_AUTO_CAPS_VALIDATOR = sBooleanValidator;
3038
3039        /**
3040         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
3041         * feature converts two spaces to a "." and space.
3042         */
3043        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
3044
3045        private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = sBooleanValidator;
3046
3047        /**
3048         * Setting to showing password characters in text editors. 1 = On, 0 = Off
3049         */
3050        public static final String TEXT_SHOW_PASSWORD = "show_password";
3051
3052        private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = sBooleanValidator;
3053
3054        public static final String SHOW_GTALK_SERVICE_STATUS =
3055                "SHOW_GTALK_SERVICE_STATUS";
3056
3057        private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = sBooleanValidator;
3058
3059        /**
3060         * Name of activity to use for wallpaper on the home screen.
3061         *
3062         * @deprecated Use {@link WallpaperManager} instead.
3063         */
3064        @Deprecated
3065        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
3066
3067        private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
3068            private static final int MAX_LENGTH = 1000;
3069
3070            @Override
3071            public boolean validate(String value) {
3072                if (value != null && value.length() > MAX_LENGTH) {
3073                    return false;
3074                }
3075                return ComponentName.unflattenFromString(value) != null;
3076            }
3077        };
3078
3079        /**
3080         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
3081         * instead
3082         */
3083        @Deprecated
3084        public static final String AUTO_TIME = Global.AUTO_TIME;
3085
3086        /**
3087         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
3088         * instead
3089         */
3090        @Deprecated
3091        public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;
3092
3093        /**
3094         * Display times as 12 or 24 hours
3095         *   12
3096         *   24
3097         */
3098        public static final String TIME_12_24 = "time_12_24";
3099
3100        /** @hide */
3101        public static final Validator TIME_12_24_VALIDATOR =
3102                new DiscreteValueValidator(new String[] {"12", "24"});
3103
3104        /**
3105         * Date format string
3106         *   mm/dd/yyyy
3107         *   dd/mm/yyyy
3108         *   yyyy/mm/dd
3109         */
3110        public static final String DATE_FORMAT = "date_format";
3111
3112        /** @hide */
3113        public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
3114            @Override
3115            public boolean validate(String value) {
3116                try {
3117                    new SimpleDateFormat(value);
3118                    return true;
3119                } catch (IllegalArgumentException e) {
3120                    return false;
3121                }
3122            }
3123        };
3124
3125        /**
3126         * Whether the setup wizard has been run before (on first boot), or if
3127         * it still needs to be run.
3128         *
3129         * nonzero = it has been run in the past
3130         * 0 = it has not been run in the past
3131         */
3132        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
3133
3134        /** @hide */
3135        public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = sBooleanValidator;
3136
3137        /**
3138         * Scaling factor for normal window animations. Setting to 0 will disable window
3139         * animations.
3140         *
3141         * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
3142         */
3143        @Deprecated
3144        public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;
3145
3146        /**
3147         * Scaling factor for activity transition animations. Setting to 0 will disable window
3148         * animations.
3149         *
3150         * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
3151         */
3152        @Deprecated
3153        public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;
3154
3155        /**
3156         * Scaling factor for Animator-based animations. This affects both the start delay and
3157         * duration of all such animations. Setting to 0 will cause animations to end immediately.
3158         * The default value is 1.
3159         *
3160         * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
3161         */
3162        @Deprecated
3163        public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;
3164
3165        /**
3166         * Control whether the accelerometer will be used to change screen
3167         * orientation.  If 0, it will not be used unless explicitly requested
3168         * by the application; if 1, it will be used by default unless explicitly
3169         * disabled by the application.
3170         */
3171        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
3172
3173        /** @hide */
3174        public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = sBooleanValidator;
3175
3176        /**
3177         * Default screen rotation when no other policy applies.
3178         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
3179         * preference, this rotation value will be used. Must be one of the
3180         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
3181         *
3182         * @see android.view.Display#getRotation
3183         */
3184        public static final String USER_ROTATION = "user_rotation";
3185
3186        /** @hide */
3187        public static final Validator USER_ROTATION_VALIDATOR =
3188                new InclusiveIntegerRangeValidator(0, 3);
3189
3190        /**
3191         * Control whether the rotation lock toggle in the System UI should be hidden.
3192         * Typically this is done for accessibility purposes to make it harder for
3193         * the user to accidentally toggle the rotation lock while the display rotation
3194         * has been locked for accessibility.
3195         *
3196         * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
3197         * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
3198         *
3199         * @hide
3200         */
3201        public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
3202                "hide_rotation_lock_toggle_for_accessibility";
3203
3204        /** @hide */
3205        public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
3206                sBooleanValidator;
3207
3208        /**
3209         * Whether the phone vibrates when it is ringing due to an incoming call. This will
3210         * be used by Phone and Setting apps; it shouldn't affect other apps.
3211         * The value is boolean (1 or 0).
3212         *
3213         * Note: this is not same as "vibrate on ring", which had been available until ICS.
3214         * It was about AudioManager's setting and thus affected all the applications which
3215         * relied on the setting, while this is purely about the vibration setting for incoming
3216         * calls.
3217         */
3218        public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";
3219
3220        /** @hide */
3221        public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = sBooleanValidator;
3222
3223        /**
3224         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
3225         * boolean (1 or 0).
3226         */
3227        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
3228
3229        /** @hide */
3230        public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3231
3232        /**
3233         * CDMA only settings
3234         * DTMF tone type played by the dialer when dialing.
3235         *                 0 = Normal
3236         *                 1 = Long
3237         */
3238        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
3239
3240        /** @hide */
3241        public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3242
3243        /**
3244         * Whether the hearing aid is enabled. The value is
3245         * boolean (1 or 0).
3246         * @hide
3247         */
3248        public static final String HEARING_AID = "hearing_aid";
3249
3250        /** @hide */
3251        public static final Validator HEARING_AID_VALIDATOR = sBooleanValidator;
3252
3253        /**
3254         * CDMA only settings
3255         * TTY Mode
3256         * 0 = OFF
3257         * 1 = FULL
3258         * 2 = VCO
3259         * 3 = HCO
3260         * @hide
3261         */
3262        public static final String TTY_MODE = "tty_mode";
3263
3264        /** @hide */
3265        public static final Validator TTY_MODE_VALIDATOR = new InclusiveIntegerRangeValidator(0, 3);
3266
3267        /**
3268         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
3269         * boolean (1 or 0).
3270         */
3271        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
3272
3273        /** @hide */
3274        public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = sBooleanValidator;
3275
3276        /**
3277         * Whether the haptic feedback (long presses, ...) are enabled. The value is
3278         * boolean (1 or 0).
3279         */
3280        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
3281
3282        /** @hide */
3283        public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = sBooleanValidator;
3284
3285        /**
3286         * @deprecated Each application that shows web suggestions should have its own
3287         * setting for this.
3288         */
3289        @Deprecated
3290        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
3291
3292        /** @hide */
3293        public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = sBooleanValidator;
3294
3295        /**
3296         * Whether the notification LED should repeatedly flash when a notification is
3297         * pending. The value is boolean (1 or 0).
3298         * @hide
3299         */
3300        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
3301
3302        /** @hide */
3303        public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = sBooleanValidator;
3304
3305        /**
3306         * Show pointer location on screen?
3307         * 0 = no
3308         * 1 = yes
3309         * @hide
3310         */
3311        public static final String POINTER_LOCATION = "pointer_location";
3312
3313        /** @hide */
3314        public static final Validator POINTER_LOCATION_VALIDATOR = sBooleanValidator;
3315
3316        /**
3317         * Show touch positions on screen?
3318         * 0 = no
3319         * 1 = yes
3320         * @hide
3321         */
3322        public static final String SHOW_TOUCHES = "show_touches";
3323
3324        /** @hide */
3325        public static final Validator SHOW_TOUCHES_VALIDATOR = sBooleanValidator;
3326
3327        /**
3328         * Log raw orientation data from
3329         * {@link com.android.server.policy.WindowOrientationListener} for use with the
3330         * orientationplot.py tool.
3331         * 0 = no
3332         * 1 = yes
3333         * @hide
3334         */
3335        public static final String WINDOW_ORIENTATION_LISTENER_LOG =
3336                "window_orientation_listener_log";
3337
3338        /** @hide */
3339        public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = sBooleanValidator;
3340
3341        /**
3342         * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
3343         * instead
3344         * @hide
3345         */
3346        @Deprecated
3347        public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;
3348
3349        /**
3350         * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
3351         * instead
3352         * @hide
3353         */
3354        @Deprecated
3355        public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;
3356
3357        /**
3358         * Whether to play sounds when the keyguard is shown and dismissed.
3359         * @hide
3360         */
3361        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
3362
3363        /** @hide */
3364        public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = sBooleanValidator;
3365
3366        /**
3367         * Whether the lockscreen should be completely disabled.
3368         * @hide
3369         */
3370        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
3371
3372        /** @hide */
3373        public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = sBooleanValidator;
3374
3375        /**
3376         * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
3377         * instead
3378         * @hide
3379         */
3380        @Deprecated
3381        public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;
3382
3383        /**
3384         * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
3385         * instead
3386         * @hide
3387         */
3388        @Deprecated
3389        public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;
3390
3391        /**
3392         * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
3393         * instead
3394         * @hide
3395         */
3396        @Deprecated
3397        public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;
3398
3399        /**
3400         * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
3401         * instead
3402         * @hide
3403         */
3404        @Deprecated
3405        public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;
3406
3407        /**
3408         * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
3409         * instead
3410         * @hide
3411         */
3412        @Deprecated
3413        public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;
3414
3415        /**
3416         * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
3417         * instead
3418         * @hide
3419         */
3420        @Deprecated
3421        public static final String LOCK_SOUND = Global.LOCK_SOUND;
3422
3423        /**
3424         * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
3425         * instead
3426         * @hide
3427         */
3428        @Deprecated
3429        public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;
3430
3431        /**
3432         * Receive incoming SIP calls?
3433         * 0 = no
3434         * 1 = yes
3435         * @hide
3436         */
3437        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
3438
3439        /** @hide */
3440        public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = sBooleanValidator;
3441
3442        /**
3443         * Call Preference String.
3444         * "SIP_ALWAYS" : Always use SIP with network access
3445         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
3446         * @hide
3447         */
3448        public static final String SIP_CALL_OPTIONS = "sip_call_options";
3449
3450        /** @hide */
3451        public static final Validator SIP_CALL_OPTIONS_VALIDATOR = new DiscreteValueValidator(
3452                new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});
3453
3454        /**
3455         * One of the sip call options: Always use SIP with network access.
3456         * @hide
3457         */
3458        public static final String SIP_ALWAYS = "SIP_ALWAYS";
3459
3460        /** @hide */
3461        public static final Validator SIP_ALWAYS_VALIDATOR = sBooleanValidator;
3462
3463        /**
3464         * One of the sip call options: Only if destination is a SIP address.
3465         * @hide
3466         */
3467        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
3468
3469        /** @hide */
3470        public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = sBooleanValidator;
3471
3472        /**
3473         * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
3474         * the user should be prompted each time a call is made whether it should be placed using
3475         * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
3476         * SIP_ADDRESS_ONLY.
3477         * @hide
3478         */
3479        @Deprecated
3480        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
3481
3482        /** @hide */
3483        public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = sBooleanValidator;
3484
3485        /**
3486         * Pointer speed setting.
3487         * This is an integer value in a range between -7 and +7, so there are 15 possible values.
3488         *   -7 = slowest
3489         *    0 = default speed
3490         *   +7 = fastest
3491         * @hide
3492         */
3493        public static final String POINTER_SPEED = "pointer_speed";
3494
3495        /** @hide */
3496        public static final Validator POINTER_SPEED_VALIDATOR =
3497                new InclusiveFloatRangeValidator(-7, 7);
3498
3499        /**
3500         * Whether lock-to-app will be triggered by long-press on recents.
3501         * @hide
3502         */
3503        public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";
3504
3505        /** @hide */
3506        public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = sBooleanValidator;
3507
3508        /**
3509         * I am the lolrus.
3510         * <p>
3511         * Nonzero values indicate that the user has a bukkit.
3512         * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
3513         * @hide
3514         */
3515        public static final String EGG_MODE = "egg_mode";
3516
3517        /** @hide */
3518        public static final Validator EGG_MODE_VALIDATOR = new Validator() {
3519            @Override
3520            public boolean validate(String value) {
3521                try {
3522                    return Long.parseLong(value) >= 0;
3523                } catch (NumberFormatException e) {
3524                    return false;
3525                }
3526            }
3527        };
3528
3529        /**
3530         * IMPORTANT: If you add a new public settings you also have to add it to
3531         * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
3532         * it to PRIVATE_SETTINGS below. Also add a validator that can validate
3533         * the setting value. See an example above.
3534         */
3535
3536        /**
3537         * Settings to backup. This is here so that it's in the same place as the settings
3538         * keys and easy to update.
3539         *
3540         * NOTE: Settings are backed up and restored in the order they appear
3541         *       in this array. If you have one setting depending on another,
3542         *       make sure that they are ordered appropriately.
3543         *
3544         * @hide
3545         */
3546        public static final String[] SETTINGS_TO_BACKUP = {
3547            STAY_ON_WHILE_PLUGGED_IN,   // moved to global
3548            WIFI_USE_STATIC_IP,
3549            WIFI_STATIC_IP,
3550            WIFI_STATIC_GATEWAY,
3551            WIFI_STATIC_NETMASK,
3552            WIFI_STATIC_DNS1,
3553            WIFI_STATIC_DNS2,
3554            BLUETOOTH_DISCOVERABILITY,
3555            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3556            FONT_SCALE,
3557            DIM_SCREEN,
3558            SCREEN_OFF_TIMEOUT,
3559            SCREEN_BRIGHTNESS,
3560            SCREEN_BRIGHTNESS_MODE,
3561            SCREEN_AUTO_BRIGHTNESS_ADJ,
3562            VIBRATE_INPUT_DEVICES,
3563            MODE_RINGER_STREAMS_AFFECTED,
3564            TEXT_AUTO_REPLACE,
3565            TEXT_AUTO_CAPS,
3566            TEXT_AUTO_PUNCTUATE,
3567            TEXT_SHOW_PASSWORD,
3568            AUTO_TIME,                  // moved to global
3569            AUTO_TIME_ZONE,             // moved to global
3570            TIME_12_24,
3571            DATE_FORMAT,
3572            DTMF_TONE_WHEN_DIALING,
3573            DTMF_TONE_TYPE_WHEN_DIALING,
3574            HEARING_AID,
3575            TTY_MODE,
3576            SOUND_EFFECTS_ENABLED,
3577            HAPTIC_FEEDBACK_ENABLED,
3578            POWER_SOUNDS_ENABLED,       // moved to global
3579            DOCK_SOUNDS_ENABLED,        // moved to global
3580            LOCKSCREEN_SOUNDS_ENABLED,
3581            SHOW_WEB_SUGGESTIONS,
3582            SIP_CALL_OPTIONS,
3583            SIP_RECEIVE_CALLS,
3584            POINTER_SPEED,
3585            VIBRATE_WHEN_RINGING,
3586            RINGTONE,
3587            LOCK_TO_APP_ENABLED,
3588            NOTIFICATION_SOUND,
3589            ACCELEROMETER_ROTATION
3590        };
3591
3592        /**
3593         * These are all public system settings
3594         *
3595         * @hide
3596         */
3597        public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
3598        static {
3599            PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
3600            PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
3601            PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
3602            PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
3603            PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
3604            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
3605            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
3606            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
3607            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
3608            PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
3609            PUBLIC_SETTINGS.add(FONT_SCALE);
3610            PUBLIC_SETTINGS.add(DIM_SCREEN);
3611            PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
3612            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
3613            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
3614            PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
3615            PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
3616            PUBLIC_SETTINGS.add(VIBRATE_ON);
3617            PUBLIC_SETTINGS.add(VOLUME_RING);
3618            PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
3619            PUBLIC_SETTINGS.add(VOLUME_VOICE);
3620            PUBLIC_SETTINGS.add(VOLUME_MUSIC);
3621            PUBLIC_SETTINGS.add(VOLUME_ALARM);
3622            PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
3623            PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
3624            PUBLIC_SETTINGS.add(RINGTONE);
3625            PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
3626            PUBLIC_SETTINGS.add(ALARM_ALERT);
3627            PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
3628            PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
3629            PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
3630            PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
3631            PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
3632            PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
3633            PUBLIC_SETTINGS.add(TIME_12_24);
3634            PUBLIC_SETTINGS.add(DATE_FORMAT);
3635            PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
3636            PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
3637            PUBLIC_SETTINGS.add(USER_ROTATION);
3638            PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
3639            PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
3640            PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
3641            PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
3642            PUBLIC_SETTINGS.add(VIBRATE_WHEN_RINGING);
3643        }
3644
3645        /**
3646         * These are all hidden system settings.
3647         *
3648         * @hide
3649         */
3650        public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
3651        static {
3652            PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
3653            PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
3654            PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
3655            PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
3656            PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
3657            PRIVATE_SETTINGS.add(VOLUME_MASTER);
3658            PRIVATE_SETTINGS.add(MASTER_MONO);
3659            PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
3660            PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
3661            PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
3662            PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
3663            PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
3664            PRIVATE_SETTINGS.add(HEARING_AID);
3665            PRIVATE_SETTINGS.add(TTY_MODE);
3666            PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
3667            PRIVATE_SETTINGS.add(POINTER_LOCATION);
3668            PRIVATE_SETTINGS.add(SHOW_TOUCHES);
3669            PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
3670            PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
3671            PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
3672            PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
3673            PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
3674            PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
3675            PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
3676            PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
3677            PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
3678            PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
3679            PRIVATE_SETTINGS.add(LOCK_SOUND);
3680            PRIVATE_SETTINGS.add(UNLOCK_SOUND);
3681            PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
3682            PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
3683            PRIVATE_SETTINGS.add(SIP_ALWAYS);
3684            PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
3685            PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
3686            PRIVATE_SETTINGS.add(POINTER_SPEED);
3687            PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
3688            PRIVATE_SETTINGS.add(EGG_MODE);
3689        }
3690
3691        /**
3692         * These are all public system settings
3693         *
3694         * @hide
3695         */
3696        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
3697        static {
3698            VALIDATORS.put(END_BUTTON_BEHAVIOR,END_BUTTON_BEHAVIOR_VALIDATOR);
3699            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
3700            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
3701            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3702                    BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
3703            VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
3704            VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
3705            VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
3706            VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
3707            VALIDATORS.put(SCREEN_BRIGHTNESS, SCREEN_BRIGHTNESS_VALIDATOR);
3708            VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
3709            VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
3710            VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
3711            VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
3712            VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
3713            VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
3714            VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
3715            VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
3716            VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
3717            VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
3718            VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
3719            VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
3720            VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
3721            VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
3722            VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
3723            VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
3724            VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
3725            VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
3726            VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
3727            VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
3728            VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
3729            VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
3730            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
3731            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
3732            VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
3733            VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
3734            VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
3735            VALIDATORS.put(MASTER_MONO, MASTER_MONO_VALIDATOR);
3736            VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
3737            VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
3738            VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
3739            VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
3740                    HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
3741            VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
3742            VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
3743            VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
3744            VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
3745            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
3746            VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
3747            VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
3748            VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
3749                    WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
3750            VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
3751            VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
3752            VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
3753            VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
3754            VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
3755            VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
3756            VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
3757            VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
3758            VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
3759            VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
3760            VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
3761            VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
3762            VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
3763            VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
3764            VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
3765        }
3766
3767        /**
3768         * These entries are considered common between the personal and the managed profile,
3769         * since the managed profile doesn't get to change them.
3770         */
3771        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
3772        static {
3773            CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
3774            CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
3775            CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
3776            CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
3777            CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
3778        }
3779
3780        /** @hide */
3781        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
3782            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
3783        }
3784
3785        /**
3786         * When to use Wi-Fi calling
3787         *
3788         * @see android.telephony.TelephonyManager.WifiCallingChoices
3789         * @hide
3790         */
3791        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
3792
3793        // Settings moved to Settings.Secure
3794
3795        /**
3796         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
3797         * instead
3798         */
3799        @Deprecated
3800        public static final String ADB_ENABLED = Global.ADB_ENABLED;
3801
3802        /**
3803         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
3804         */
3805        @Deprecated
3806        public static final String ANDROID_ID = Secure.ANDROID_ID;
3807
3808        /**
3809         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
3810         */
3811        @Deprecated
3812        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
3813
3814        /**
3815         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
3816         */
3817        @Deprecated
3818        public static final String DATA_ROAMING = Global.DATA_ROAMING;
3819
3820        /**
3821         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
3822         */
3823        @Deprecated
3824        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
3825
3826        /**
3827         * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
3828         */
3829        @Deprecated
3830        public static final String HTTP_PROXY = Global.HTTP_PROXY;
3831
3832        /**
3833         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
3834         */
3835        @Deprecated
3836        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
3837
3838        /**
3839         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
3840         * instead
3841         */
3842        @Deprecated
3843        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
3844
3845        /**
3846         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
3847         */
3848        @Deprecated
3849        public static final String LOGGING_ID = Secure.LOGGING_ID;
3850
3851        /**
3852         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
3853         */
3854        @Deprecated
3855        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
3856
3857        /**
3858         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
3859         * instead
3860         */
3861        @Deprecated
3862        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
3863
3864        /**
3865         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
3866         * instead
3867         */
3868        @Deprecated
3869        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
3870
3871        /**
3872         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
3873         * instead
3874         */
3875        @Deprecated
3876        public static final String PARENTAL_CONTROL_REDIRECT_URL =
3877            Secure.PARENTAL_CONTROL_REDIRECT_URL;
3878
3879        /**
3880         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
3881         */
3882        @Deprecated
3883        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
3884
3885        /**
3886         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
3887         */
3888        @Deprecated
3889        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
3890
3891        /**
3892         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
3893         */
3894        @Deprecated
3895        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
3896
3897       /**
3898         * @deprecated Use
3899         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
3900         */
3901        @Deprecated
3902        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
3903
3904        /**
3905         * @deprecated Use
3906         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
3907         */
3908        @Deprecated
3909        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
3910                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
3911
3912        /**
3913         * @deprecated Use
3914         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
3915         */
3916        @Deprecated
3917        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
3918                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
3919
3920        /**
3921         * @deprecated Use
3922         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
3923         */
3924        @Deprecated
3925        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
3926                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
3927
3928        /**
3929         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
3930         * instead
3931         */
3932        @Deprecated
3933        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
3934
3935        /**
3936         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
3937         */
3938        @Deprecated
3939        public static final String WIFI_ON = Global.WIFI_ON;
3940
3941        /**
3942         * @deprecated Use
3943         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
3944         * instead
3945         */
3946        @Deprecated
3947        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
3948                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
3949
3950        /**
3951         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
3952         */
3953        @Deprecated
3954        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
3955
3956        /**
3957         * @deprecated Use
3958         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
3959         */
3960        @Deprecated
3961        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
3962                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
3963
3964        /**
3965         * @deprecated Use
3966         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
3967         */
3968        @Deprecated
3969        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
3970                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
3971
3972        /**
3973         * @deprecated Use
3974         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
3975         * instead
3976         */
3977        @Deprecated
3978        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
3979                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
3980
3981        /**
3982         * @deprecated Use
3983         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
3984         */
3985        @Deprecated
3986        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
3987            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
3988
3989        /**
3990         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
3991         * instead
3992         */
3993        @Deprecated
3994        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
3995
3996        /**
3997         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
3998         */
3999        @Deprecated
4000        public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;
4001
4002        /**
4003         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
4004         */
4005        @Deprecated
4006        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
4007
4008        /**
4009         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
4010         * instead
4011         */
4012        @Deprecated
4013        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
4014
4015        /**
4016         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
4017         * instead
4018         */
4019        @Deprecated
4020        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
4021            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
4022
4023        /**
4024         * Checks if the specified app can modify system settings. As of API
4025         * level 23, an app cannot modify system settings unless it declares the
4026         * {@link android.Manifest.permission#WRITE_SETTINGS}
4027         * permission in its manifest, <em>and</em> the user specifically grants
4028         * the app this capability. To prompt the user to grant this approval,
4029         * the app must send an intent with the action {@link
4030         * android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}, which causes
4031         * the system to display a permission management screen.
4032         *
4033         * @param context App context.
4034         * @return true if the calling app can write to system settings, false otherwise
4035         */
4036        public static boolean canWrite(Context context) {
4037            return isCallingPackageAllowedToWriteSettings(context, Process.myUid(),
4038                    context.getOpPackageName(), false);
4039        }
4040    }
4041
4042    /**
4043     * Secure system settings, containing system preferences that applications
4044     * can read but are not allowed to write.  These are for preferences that
4045     * the user must explicitly modify through the system UI or specialized
4046     * APIs for those values, not modified directly by applications.
4047     */
4048    public static final class Secure extends NameValueTable {
4049        /**
4050         * The content:// style URL for this table
4051         */
4052        public static final Uri CONTENT_URI =
4053            Uri.parse("content://" + AUTHORITY + "/secure");
4054
4055        // Populated lazily, guarded by class object:
4056        private static final NameValueCache sNameValueCache = new NameValueCache(
4057                CONTENT_URI,
4058                CALL_METHOD_GET_SECURE,
4059                CALL_METHOD_PUT_SECURE);
4060
4061        private static ILockSettings sLockSettings = null;
4062
4063        private static boolean sIsSystemProcess;
4064        private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
4065        private static final HashSet<String> MOVED_TO_GLOBAL;
4066        static {
4067            MOVED_TO_LOCK_SETTINGS = new HashSet<String>(3);
4068            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
4069            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
4070            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
4071
4072            MOVED_TO_GLOBAL = new HashSet<String>();
4073            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
4074            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
4075            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
4076            MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
4077            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
4078            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
4079            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
4080            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
4081            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
4082            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
4083            MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
4084            MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
4085            MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
4086            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
4087            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
4088            MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
4089            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
4090            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
4091            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
4092            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
4093            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
4094            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
4095            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
4096            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
4097            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
4098            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
4099            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
4100            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
4101            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
4102            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
4103            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
4104            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
4105            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
4106            MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
4107            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
4108            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
4109            MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
4110            MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
4111            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
4112            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
4113            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
4114            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
4115            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
4116            MOVED_TO_GLOBAL.add(Settings.Global.SAMPLING_PROFILER_MS);
4117            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
4118            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
4119            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
4120            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
4121            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
4122            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
4123            MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
4124            MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
4125            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
4126            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
4127            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
4128            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
4129            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
4130            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
4131            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4132            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
4133            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
4134            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
4135            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
4136            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
4137            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
4138            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
4139            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED);
4140            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
4141            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
4142            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
4143            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
4144            MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4145            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
4146            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
4147            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
4148            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
4149            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
4150            MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
4151            MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
4152            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
4153            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
4154            MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
4155            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
4156            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
4157            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
4158            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
4159            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
4160            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
4161            MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
4162            MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
4163            MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
4164            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
4165            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
4166            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
4167            MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
4168            MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
4169            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
4170            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
4171            MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
4172            MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
4173            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
4174            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
4175            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
4176            MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
4177            MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
4178            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
4179            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
4180            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
4181            MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
4182            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
4183            MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
4184            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
4185        }
4186
4187        /** @hide */
4188        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
4189            outKeySet.addAll(MOVED_TO_GLOBAL);
4190        }
4191
4192        /**
4193         * Look up a name in the database.
4194         * @param resolver to access the database with
4195         * @param name to look up in the table
4196         * @return the corresponding value, or null if not present
4197         */
4198        public static String getString(ContentResolver resolver, String name) {
4199            return getStringForUser(resolver, name, UserHandle.myUserId());
4200        }
4201
4202        /** @hide */
4203        public static String getStringForUser(ContentResolver resolver, String name,
4204                int userHandle) {
4205            if (MOVED_TO_GLOBAL.contains(name)) {
4206                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4207                        + " to android.provider.Settings.Global.");
4208                return Global.getStringForUser(resolver, name, userHandle);
4209            }
4210
4211            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
4212                synchronized (Secure.class) {
4213                    if (sLockSettings == null) {
4214                        sLockSettings = ILockSettings.Stub.asInterface(
4215                                (IBinder) ServiceManager.getService("lock_settings"));
4216                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
4217                    }
4218                }
4219                if (sLockSettings != null && !sIsSystemProcess) {
4220                    // No context; use the ActivityThread's context as an approximation for
4221                    // determining the target API level.
4222                    Application application = ActivityThread.currentApplication();
4223
4224                    boolean isPreMnc = application != null
4225                            && application.getApplicationInfo() != null
4226                            && application.getApplicationInfo().targetSdkVersion
4227                            <= VERSION_CODES.LOLLIPOP_MR1;
4228                    if (isPreMnc) {
4229                        try {
4230                            return sLockSettings.getString(name, "0", userHandle);
4231                        } catch (RemoteException re) {
4232                            // Fall through
4233                        }
4234                    } else {
4235                        throw new SecurityException("Settings.Secure." + name
4236                                + " is deprecated and no longer accessible."
4237                                + " See API documentation for potential replacements.");
4238                    }
4239                }
4240            }
4241
4242            return sNameValueCache.getStringForUser(resolver, name, userHandle);
4243        }
4244
4245        /**
4246         * Store a name/value pair into the database.
4247         * @param resolver to access the database with
4248         * @param name to store
4249         * @param value to associate with the name
4250         * @return true if the value was set, false on database errors
4251         */
4252        public static boolean putString(ContentResolver resolver, String name, String value) {
4253            return putStringForUser(resolver, name, value, UserHandle.myUserId());
4254        }
4255
4256        /** @hide */
4257        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
4258                int userHandle) {
4259            if (LOCATION_MODE.equals(name)) {
4260                // HACK ALERT: temporary hack to work around b/10491283.
4261                // TODO: once b/10491283 fixed, remove this hack
4262                return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
4263            }
4264            if (MOVED_TO_GLOBAL.contains(name)) {
4265                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
4266                        + " to android.provider.Settings.Global");
4267                return Global.putStringForUser(resolver, name, value, userHandle);
4268            }
4269            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
4270        }
4271
4272        /**
4273         * Construct the content URI for a particular name/value pair,
4274         * useful for monitoring changes with a ContentObserver.
4275         * @param name to look up in the table
4276         * @return the corresponding content URI, or null if not present
4277         */
4278        public static Uri getUriFor(String name) {
4279            if (MOVED_TO_GLOBAL.contains(name)) {
4280                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4281                        + " to android.provider.Settings.Global, returning global URI.");
4282                return Global.getUriFor(Global.CONTENT_URI, name);
4283            }
4284            return getUriFor(CONTENT_URI, name);
4285        }
4286
4287        /**
4288         * Convenience function for retrieving a single secure settings value
4289         * as an integer.  Note that internally setting values are always
4290         * stored as strings; this function converts the string to an integer
4291         * for you.  The default value will be returned if the setting is
4292         * not defined or not an integer.
4293         *
4294         * @param cr The ContentResolver to access.
4295         * @param name The name of the setting to retrieve.
4296         * @param def Value to return if the setting is not defined.
4297         *
4298         * @return The setting's current value, or 'def' if it is not defined
4299         * or not a valid integer.
4300         */
4301        public static int getInt(ContentResolver cr, String name, int def) {
4302            return getIntForUser(cr, name, def, UserHandle.myUserId());
4303        }
4304
4305        /** @hide */
4306        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
4307            if (LOCATION_MODE.equals(name)) {
4308                // HACK ALERT: temporary hack to work around b/10491283.
4309                // TODO: once b/10491283 fixed, remove this hack
4310                return getLocationModeForUser(cr, userHandle);
4311            }
4312            String v = getStringForUser(cr, name, userHandle);
4313            try {
4314                return v != null ? Integer.parseInt(v) : def;
4315            } catch (NumberFormatException e) {
4316                return def;
4317            }
4318        }
4319
4320        /**
4321         * Convenience function for retrieving a single secure settings value
4322         * as an integer.  Note that internally setting values are always
4323         * stored as strings; this function converts the string to an integer
4324         * for you.
4325         * <p>
4326         * This version does not take a default value.  If the setting has not
4327         * been set, or the string value is not a number,
4328         * it throws {@link SettingNotFoundException}.
4329         *
4330         * @param cr The ContentResolver to access.
4331         * @param name The name of the setting to retrieve.
4332         *
4333         * @throws SettingNotFoundException Thrown if a setting by the given
4334         * name can't be found or the setting value is not an integer.
4335         *
4336         * @return The setting's current value.
4337         */
4338        public static int getInt(ContentResolver cr, String name)
4339                throws SettingNotFoundException {
4340            return getIntForUser(cr, name, UserHandle.myUserId());
4341        }
4342
4343        /** @hide */
4344        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
4345                throws SettingNotFoundException {
4346            if (LOCATION_MODE.equals(name)) {
4347                // HACK ALERT: temporary hack to work around b/10491283.
4348                // TODO: once b/10491283 fixed, remove this hack
4349                return getLocationModeForUser(cr, userHandle);
4350            }
4351            String v = getStringForUser(cr, name, userHandle);
4352            try {
4353                return Integer.parseInt(v);
4354            } catch (NumberFormatException e) {
4355                throw new SettingNotFoundException(name);
4356            }
4357        }
4358
4359        /**
4360         * Convenience function for updating a single settings value as an
4361         * integer. This will either create a new entry in the table if the
4362         * given name does not exist, or modify the value of the existing row
4363         * with that name.  Note that internally setting values are always
4364         * stored as strings, so this function converts the given value to a
4365         * string before storing it.
4366         *
4367         * @param cr The ContentResolver to access.
4368         * @param name The name of the setting to modify.
4369         * @param value The new value for the setting.
4370         * @return true if the value was set, false on database errors
4371         */
4372        public static boolean putInt(ContentResolver cr, String name, int value) {
4373            return putIntForUser(cr, name, value, UserHandle.myUserId());
4374        }
4375
4376        /** @hide */
4377        public static boolean putIntForUser(ContentResolver cr, String name, int value,
4378                int userHandle) {
4379            return putStringForUser(cr, name, Integer.toString(value), userHandle);
4380        }
4381
4382        /**
4383         * Convenience function for retrieving a single secure settings value
4384         * as a {@code long}.  Note that internally setting values are always
4385         * stored as strings; this function converts the string to a {@code long}
4386         * for you.  The default value will be returned if the setting is
4387         * not defined or not a {@code long}.
4388         *
4389         * @param cr The ContentResolver to access.
4390         * @param name The name of the setting to retrieve.
4391         * @param def Value to return if the setting is not defined.
4392         *
4393         * @return The setting's current value, or 'def' if it is not defined
4394         * or not a valid {@code long}.
4395         */
4396        public static long getLong(ContentResolver cr, String name, long def) {
4397            return getLongForUser(cr, name, def, UserHandle.myUserId());
4398        }
4399
4400        /** @hide */
4401        public static long getLongForUser(ContentResolver cr, String name, long def,
4402                int userHandle) {
4403            String valString = getStringForUser(cr, name, userHandle);
4404            long value;
4405            try {
4406                value = valString != null ? Long.parseLong(valString) : def;
4407            } catch (NumberFormatException e) {
4408                value = def;
4409            }
4410            return value;
4411        }
4412
4413        /**
4414         * Convenience function for retrieving a single secure settings value
4415         * as a {@code long}.  Note that internally setting values are always
4416         * stored as strings; this function converts the string to a {@code long}
4417         * for you.
4418         * <p>
4419         * This version does not take a default value.  If the setting has not
4420         * been set, or the string value is not a number,
4421         * it throws {@link SettingNotFoundException}.
4422         *
4423         * @param cr The ContentResolver to access.
4424         * @param name The name of the setting to retrieve.
4425         *
4426         * @return The setting's current value.
4427         * @throws SettingNotFoundException Thrown if a setting by the given
4428         * name can't be found or the setting value is not an integer.
4429         */
4430        public static long getLong(ContentResolver cr, String name)
4431                throws SettingNotFoundException {
4432            return getLongForUser(cr, name, UserHandle.myUserId());
4433        }
4434
4435        /** @hide */
4436        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
4437                throws SettingNotFoundException {
4438            String valString = getStringForUser(cr, name, userHandle);
4439            try {
4440                return Long.parseLong(valString);
4441            } catch (NumberFormatException e) {
4442                throw new SettingNotFoundException(name);
4443            }
4444        }
4445
4446        /**
4447         * Convenience function for updating a secure settings value as a long
4448         * integer. This will either create a new entry in the table if the
4449         * given name does not exist, or modify the value of the existing row
4450         * with that name.  Note that internally setting values are always
4451         * stored as strings, so this function converts the given value to a
4452         * string before storing it.
4453         *
4454         * @param cr The ContentResolver to access.
4455         * @param name The name of the setting to modify.
4456         * @param value The new value for the setting.
4457         * @return true if the value was set, false on database errors
4458         */
4459        public static boolean putLong(ContentResolver cr, String name, long value) {
4460            return putLongForUser(cr, name, value, UserHandle.myUserId());
4461        }
4462
4463        /** @hide */
4464        public static boolean putLongForUser(ContentResolver cr, String name, long value,
4465                int userHandle) {
4466            return putStringForUser(cr, name, Long.toString(value), userHandle);
4467        }
4468
4469        /**
4470         * Convenience function for retrieving a single secure settings value
4471         * as a floating point number.  Note that internally setting values are
4472         * always stored as strings; this function converts the string to an
4473         * float for you. The default value will be returned if the setting
4474         * is not defined or not a valid float.
4475         *
4476         * @param cr The ContentResolver to access.
4477         * @param name The name of the setting to retrieve.
4478         * @param def Value to return if the setting is not defined.
4479         *
4480         * @return The setting's current value, or 'def' if it is not defined
4481         * or not a valid float.
4482         */
4483        public static float getFloat(ContentResolver cr, String name, float def) {
4484            return getFloatForUser(cr, name, def, UserHandle.myUserId());
4485        }
4486
4487        /** @hide */
4488        public static float getFloatForUser(ContentResolver cr, String name, float def,
4489                int userHandle) {
4490            String v = getStringForUser(cr, name, userHandle);
4491            try {
4492                return v != null ? Float.parseFloat(v) : def;
4493            } catch (NumberFormatException e) {
4494                return def;
4495            }
4496        }
4497
4498        /**
4499         * Convenience function for retrieving a single secure settings value
4500         * as a float.  Note that internally setting values are always
4501         * stored as strings; this function converts the string to a float
4502         * for you.
4503         * <p>
4504         * This version does not take a default value.  If the setting has not
4505         * been set, or the string value is not a number,
4506         * it throws {@link SettingNotFoundException}.
4507         *
4508         * @param cr The ContentResolver to access.
4509         * @param name The name of the setting to retrieve.
4510         *
4511         * @throws SettingNotFoundException Thrown if a setting by the given
4512         * name can't be found or the setting value is not a float.
4513         *
4514         * @return The setting's current value.
4515         */
4516        public static float getFloat(ContentResolver cr, String name)
4517                throws SettingNotFoundException {
4518            return getFloatForUser(cr, name, UserHandle.myUserId());
4519        }
4520
4521        /** @hide */
4522        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
4523                throws SettingNotFoundException {
4524            String v = getStringForUser(cr, name, userHandle);
4525            if (v == null) {
4526                throw new SettingNotFoundException(name);
4527            }
4528            try {
4529                return Float.parseFloat(v);
4530            } catch (NumberFormatException e) {
4531                throw new SettingNotFoundException(name);
4532            }
4533        }
4534
4535        /**
4536         * Convenience function for updating a single settings value as a
4537         * floating point number. This will either create a new entry in the
4538         * table if the given name does not exist, or modify the value of the
4539         * existing row with that name.  Note that internally setting values
4540         * are always stored as strings, so this function converts the given
4541         * value to a string before storing it.
4542         *
4543         * @param cr The ContentResolver to access.
4544         * @param name The name of the setting to modify.
4545         * @param value The new value for the setting.
4546         * @return true if the value was set, false on database errors
4547         */
4548        public static boolean putFloat(ContentResolver cr, String name, float value) {
4549            return putFloatForUser(cr, name, value, UserHandle.myUserId());
4550        }
4551
4552        /** @hide */
4553        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
4554                int userHandle) {
4555            return putStringForUser(cr, name, Float.toString(value), userHandle);
4556        }
4557
4558        /**
4559         * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
4560         * instead
4561         */
4562        @Deprecated
4563        public static final String DEVELOPMENT_SETTINGS_ENABLED =
4564                Global.DEVELOPMENT_SETTINGS_ENABLED;
4565
4566        /**
4567         * When the user has enable the option to have a "bug report" command
4568         * in the power menu.
4569         * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
4570         * @hide
4571         */
4572        @Deprecated
4573        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
4574
4575        /**
4576         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
4577         */
4578        @Deprecated
4579        public static final String ADB_ENABLED = Global.ADB_ENABLED;
4580
4581        /**
4582         * Setting to allow mock locations and location provider status to be injected into the
4583         * LocationManager service for testing purposes during application development.  These
4584         * locations and status values  override actual location and status information generated
4585         * by network, gps, or other location providers.
4586         *
4587         * @deprecated This settings is not used anymore.
4588         */
4589        @Deprecated
4590        public static final String ALLOW_MOCK_LOCATION = "mock_location";
4591
4592        /**
4593         * A 64-bit number (as a hex string) that is randomly
4594         * generated when the user first sets up the device and should remain
4595         * constant for the lifetime of the user's device. The value may
4596         * change if a factory reset is performed on the device.
4597         * <p class="note"><strong>Note:</strong> When a device has <a
4598         * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a>
4599         * (available on certain devices running Android 4.2 or higher), each user appears as a
4600         * completely separate device, so the {@code ANDROID_ID} value is unique to each
4601         * user.</p>
4602         */
4603        public static final String ANDROID_ID = "android_id";
4604
4605        /**
4606         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
4607         */
4608        @Deprecated
4609        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
4610
4611        /**
4612         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
4613         */
4614        @Deprecated
4615        public static final String DATA_ROAMING = Global.DATA_ROAMING;
4616
4617        /**
4618         * Setting to record the input method used by default, holding the ID
4619         * of the desired method.
4620         */
4621        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
4622
4623        /**
4624         * Setting to record the input method subtype used by default, holding the ID
4625         * of the desired method.
4626         */
4627        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
4628                "selected_input_method_subtype";
4629
4630        /**
4631         * Setting to record the history of input method subtype, holding the pair of ID of IME
4632         * and its last used subtype.
4633         * @hide
4634         */
4635        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
4636                "input_methods_subtype_history";
4637
4638        /**
4639         * Setting to record the visibility of input method selector
4640         */
4641        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
4642                "input_method_selector_visibility";
4643
4644        /**
4645         * The currently selected voice interaction service flattened ComponentName.
4646         * @hide
4647         */
4648        @TestApi
4649        public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";
4650
4651        /**
4652         * bluetooth HCI snoop log configuration
4653         * @hide
4654         */
4655        public static final String BLUETOOTH_HCI_LOG =
4656                "bluetooth_hci_log";
4657
4658        /**
4659         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
4660         */
4661        @Deprecated
4662        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
4663
4664        /**
4665         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
4666         * @hide
4667         */
4668        public static final String USER_SETUP_COMPLETE = "user_setup_complete";
4669
4670        /**
4671         * Prefix for category name that marks whether a suggested action from that category was
4672         * completed.
4673         * @hide
4674         */
4675        public static final String COMPLETED_CATEGORY_PREFIX = "suggested.completed_category.";
4676
4677        /**
4678         * List of input methods that are currently enabled.  This is a string
4679         * containing the IDs of all enabled input methods, each ID separated
4680         * by ':'.
4681         */
4682        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
4683
4684        /**
4685         * List of system input methods that are currently disabled.  This is a string
4686         * containing the IDs of all disabled input methods, each ID separated
4687         * by ':'.
4688         * @hide
4689         */
4690        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
4691
4692        /**
4693         * Whether to show the IME when a hard keyboard is connected. This is a boolean that
4694         * determines if the IME should be shown when a hard keyboard is attached.
4695         * @hide
4696         */
4697        public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";
4698
4699        /**
4700         * Host name and port for global http proxy. Uses ':' seperator for
4701         * between host and port.
4702         *
4703         * @deprecated Use {@link Global#HTTP_PROXY}
4704         */
4705        @Deprecated
4706        public static final String HTTP_PROXY = Global.HTTP_PROXY;
4707
4708        /**
4709         * Package designated as always-on VPN provider.
4710         *
4711         * @hide
4712         */
4713        public static final String ALWAYS_ON_VPN_APP = "always_on_vpn_app";
4714
4715        /**
4716         * Whether applications can be installed for this user via the system's
4717         * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
4718         *
4719         * <p>1 = permit app installation via the system package installer intent
4720         * <p>0 = do not allow use of the package installer
4721         */
4722        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
4723
4724        /**
4725         * Comma-separated list of location providers that activities may access. Do not rely on
4726         * this value being present in settings.db or on ContentObserver notifications on the
4727         * corresponding Uri.
4728         *
4729         * @deprecated use {@link #LOCATION_MODE} and
4730         * {@link LocationManager#MODE_CHANGED_ACTION} (or
4731         * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
4732         */
4733        @Deprecated
4734        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
4735
4736        /**
4737         * The degree of location access enabled by the user.
4738         * <p>
4739         * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
4740         * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
4741         * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
4742         * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
4743         * modes that might be added in the future.
4744         * <p>
4745         * Note: do not rely on this value being present in settings.db or on ContentObserver
4746         * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
4747         * to receive changes in this value.
4748         */
4749        public static final String LOCATION_MODE = "location_mode";
4750        /**
4751         * Stores the previous location mode when {@link #LOCATION_MODE} is set to
4752         * {@link #LOCATION_MODE_OFF}
4753         * @hide
4754         */
4755        public static final String LOCATION_PREVIOUS_MODE = "location_previous_mode";
4756
4757        /**
4758         * Sets all location providers to the previous states before location was turned off.
4759         * @hide
4760         */
4761        public static final int LOCATION_MODE_PREVIOUS = -1;
4762        /**
4763         * Location access disabled.
4764         */
4765        public static final int LOCATION_MODE_OFF = 0;
4766        /**
4767         * Network Location Provider disabled, but GPS and other sensors enabled.
4768         */
4769        public static final int LOCATION_MODE_SENSORS_ONLY = 1;
4770        /**
4771         * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
4772         * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
4773         * {@link android.location.Criteria#POWER_MEDIUM}.
4774         */
4775        public static final int LOCATION_MODE_BATTERY_SAVING = 2;
4776        /**
4777         * Best-effort location computation allowed.
4778         */
4779        public static final int LOCATION_MODE_HIGH_ACCURACY = 3;
4780
4781        /**
4782         * A flag containing settings used for biometric weak
4783         * @hide
4784         */
4785        @Deprecated
4786        public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
4787                "lock_biometric_weak_flags";
4788
4789        /**
4790         * Whether lock-to-app will lock the keyguard when exiting.
4791         * @hide
4792         */
4793        public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";
4794
4795        /**
4796         * Whether autolock is enabled (0 = false, 1 = true)
4797         *
4798         * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
4799         *             level of the keyguard. Accessing this setting from an app that is targeting
4800         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4801         */
4802        @Deprecated
4803        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
4804
4805        /**
4806         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
4807         *
4808         * @deprecated Accessing this setting from an app that is targeting
4809         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4810         */
4811        @Deprecated
4812        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
4813
4814        /**
4815         * Whether lock pattern will vibrate as user enters (0 = false, 1 =
4816         * true)
4817         *
4818         * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
4819         *             lockscreen uses
4820         *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
4821         *             Accessing this setting from an app that is targeting
4822         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4823         */
4824        @Deprecated
4825        public static final String
4826                LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";
4827
4828        /**
4829         * This preference allows the device to be locked given time after screen goes off,
4830         * subject to current DeviceAdmin policy limits.
4831         * @hide
4832         */
4833        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
4834
4835
4836        /**
4837         * This preference contains the string that shows for owner info on LockScreen.
4838         * @hide
4839         * @deprecated
4840         */
4841        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
4842
4843        /**
4844         * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
4845         * @hide
4846         */
4847        @Deprecated
4848        public static final String LOCK_SCREEN_APPWIDGET_IDS =
4849            "lock_screen_appwidget_ids";
4850
4851        /**
4852         * Id of the appwidget shown on the lock screen when appwidgets are disabled.
4853         * @hide
4854         */
4855        @Deprecated
4856        public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
4857            "lock_screen_fallback_appwidget_id";
4858
4859        /**
4860         * Index of the lockscreen appwidget to restore, -1 if none.
4861         * @hide
4862         */
4863        @Deprecated
4864        public static final String LOCK_SCREEN_STICKY_APPWIDGET =
4865            "lock_screen_sticky_appwidget";
4866
4867        /**
4868         * This preference enables showing the owner info on LockScreen.
4869         * @hide
4870         * @deprecated
4871         */
4872        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
4873            "lock_screen_owner_info_enabled";
4874
4875        /**
4876         * When set by a user, allows notifications to be shown atop a securely locked screen
4877         * in their full "private" form (same as when the device is unlocked).
4878         * @hide
4879         */
4880        public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
4881                "lock_screen_allow_private_notifications";
4882
4883        /**
4884         * When set by a user, allows notification remote input atop a securely locked screen
4885         * without having to unlock
4886         * @hide
4887         */
4888        public static final String LOCK_SCREEN_ALLOW_REMOTE_INPUT =
4889                "lock_screen_allow_remote_input";
4890
4891        /**
4892         * Set by the system to track if the user needs to see the call to action for
4893         * the lockscreen notification policy.
4894         * @hide
4895         */
4896        public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
4897                "show_note_about_notification_hiding";
4898
4899        /**
4900         * Set to 1 by the system after trust agents have been initialized.
4901         * @hide
4902         */
4903        public static final String TRUST_AGENTS_INITIALIZED =
4904                "trust_agents_initialized";
4905
4906        /**
4907         * The Logging ID (a unique 64-bit value) as a hex string.
4908         * Used as a pseudonymous identifier for logging.
4909         * @deprecated This identifier is poorly initialized and has
4910         * many collisions.  It should not be used.
4911         */
4912        @Deprecated
4913        public static final String LOGGING_ID = "logging_id";
4914
4915        /**
4916         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
4917         */
4918        @Deprecated
4919        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
4920
4921        /**
4922         * No longer supported.
4923         */
4924        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
4925
4926        /**
4927         * No longer supported.
4928         */
4929        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
4930
4931        /**
4932         * No longer supported.
4933         */
4934        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
4935
4936        /**
4937         * Settings classname to launch when Settings is clicked from All
4938         * Applications.  Needed because of user testing between the old
4939         * and new Settings apps.
4940         */
4941        // TODO: 881807
4942        public static final String SETTINGS_CLASSNAME = "settings_classname";
4943
4944        /**
4945         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
4946         */
4947        @Deprecated
4948        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
4949
4950        /**
4951         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
4952         */
4953        @Deprecated
4954        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
4955
4956        /**
4957         * If accessibility is enabled.
4958         */
4959        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
4960
4961        /**
4962         * If touch exploration is enabled.
4963         */
4964        public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";
4965
4966        /**
4967         * List of the enabled accessibility providers.
4968         */
4969        public static final String ENABLED_ACCESSIBILITY_SERVICES =
4970            "enabled_accessibility_services";
4971
4972        /**
4973         * List of the accessibility services to which the user has granted
4974         * permission to put the device into touch exploration mode.
4975         *
4976         * @hide
4977         */
4978        public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
4979            "touch_exploration_granted_accessibility_services";
4980
4981        /**
4982         * Whether to speak passwords while in accessibility mode.
4983         */
4984        public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";
4985
4986        /**
4987         * Whether to draw text with high contrast while in accessibility mode.
4988         *
4989         * @hide
4990         */
4991        public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
4992                "high_text_contrast_enabled";
4993
4994        /**
4995         * If injection of accessibility enhancing JavaScript screen-reader
4996         * is enabled.
4997         * <p>
4998         *   Note: The JavaScript based screen-reader is served by the
4999         *   Google infrastructure and enable users with disabilities to
5000         *   efficiently navigate in and explore web content.
5001         * </p>
5002         * <p>
5003         *   This property represents a boolean value.
5004         * </p>
5005         * @hide
5006         */
5007        public static final String ACCESSIBILITY_SCRIPT_INJECTION =
5008            "accessibility_script_injection";
5009
5010        /**
5011         * The URL for the injected JavaScript based screen-reader used
5012         * for providing accessibility of content in WebView.
5013         * <p>
5014         *   Note: The JavaScript based screen-reader is served by the
5015         *   Google infrastructure and enable users with disabilities to
5016         *   efficiently navigate in and explore web content.
5017         * </p>
5018         * <p>
5019         *   This property represents a string value.
5020         * </p>
5021         * @hide
5022         */
5023        public static final String ACCESSIBILITY_SCREEN_READER_URL =
5024            "accessibility_script_injection_url";
5025
5026        /**
5027         * Key bindings for navigation in built-in accessibility support for web content.
5028         * <p>
5029         *   Note: These key bindings are for the built-in accessibility navigation for
5030         *   web content which is used as a fall back solution if JavaScript in a WebView
5031         *   is not enabled or the user has not opted-in script injection from Google.
5032         * </p>
5033         * <p>
5034         *   The bindings are separated by semi-colon. A binding is a mapping from
5035         *   a key to a sequence of actions (for more details look at
5036         *   android.webkit.AccessibilityInjector). A key is represented as the hexademical
5037         *   string representation of an integer obtained from a meta state (optional) shifted
5038         *   sixteen times left and bitwise ored with a key code. An action is represented
5039         *   as a hexademical string representation of an integer where the first two digits
5040         *   are navigation action index, the second, the third, and the fourth digit pairs
5041         *   represent the action arguments. The separate actions in a binding are colon
5042         *   separated. The key and the action sequence it maps to are separated by equals.
5043         * </p>
5044         * <p>
5045         *   For example, the binding below maps the DPAD right button to traverse the
5046         *   current navigation axis once without firing an accessibility event and to
5047         *   perform the same traversal again but to fire an event:
5048         *   <code>
5049         *     0x16=0x01000100:0x01000101;
5050         *   </code>
5051         * </p>
5052         * <p>
5053         *   The goal of this binding is to enable dynamic rebinding of keys to
5054         *   navigation actions for web content without requiring a framework change.
5055         * </p>
5056         * <p>
5057         *   This property represents a string value.
5058         * </p>
5059         * @hide
5060         */
5061        public static final String ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS =
5062            "accessibility_web_content_key_bindings";
5063
5064        /**
5065         * Setting that specifies whether the display magnification is enabled.
5066         * Display magnifications allows the user to zoom in the display content
5067         * and is targeted to low vision users. The current magnification scale
5068         * is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5069         *
5070         * @hide
5071         */
5072        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
5073                "accessibility_display_magnification_enabled";
5074
5075        /**
5076         * Setting that specifies what the display magnification scale is.
5077         * Display magnifications allows the user to zoom in the display
5078         * content and is targeted to low vision users. Whether a display
5079         * magnification is performed is controlled by
5080         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
5081         *
5082         * @hide
5083         */
5084        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
5085                "accessibility_display_magnification_scale";
5086
5087        /**
5088         * Setting that specifies whether the display magnification should be
5089         * automatically updated. If this fearture is enabled the system will
5090         * exit magnification mode or pan the viewport when a context change
5091         * occurs. For example, on staring a new activity or rotating the screen,
5092         * the system may zoom out so the user can see the new context he is in.
5093         * Another example is on showing a window that is not visible in the
5094         * magnified viewport the system may pan the viewport to make the window
5095         * the has popped up so the user knows that the context has changed.
5096         * Whether a screen magnification is performed is controlled by
5097         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
5098         *
5099         * @hide
5100         */
5101        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
5102                "accessibility_display_magnification_auto_update";
5103
5104        /**
5105         * Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
5106         * modified from an AccessibilityService using the SoftKeyboardController.
5107         *
5108         * @hide
5109         */
5110        public static final String ACCESSIBILITY_SOFT_KEYBOARD_MODE =
5111                "accessibility_soft_keyboard_mode";
5112
5113        /**
5114         * Default soft keyboard behavior.
5115         *
5116         * @hide
5117         */
5118        public static final int SHOW_MODE_AUTO = 0;
5119
5120        /**
5121         * Soft keyboard is never shown.
5122         *
5123         * @hide
5124         */
5125        public static final int SHOW_MODE_HIDDEN = 1;
5126
5127        /**
5128         * Setting that specifies whether timed text (captions) should be
5129         * displayed in video content. Text display properties are controlled by
5130         * the following settings:
5131         * <ul>
5132         * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
5133         * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
5134         * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
5135         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
5136         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
5137         * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
5138         * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
5139         * </ul>
5140         *
5141         * @hide
5142         */
5143        public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
5144                "accessibility_captioning_enabled";
5145
5146        /**
5147         * Setting that specifies the language for captions as a locale string,
5148         * e.g. en_US.
5149         *
5150         * @see java.util.Locale#toString
5151         * @hide
5152         */
5153        public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
5154                "accessibility_captioning_locale";
5155
5156        /**
5157         * Integer property that specifies the preset style for captions, one
5158         * of:
5159         * <ul>
5160         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
5161         * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
5162         * </ul>
5163         *
5164         * @see java.util.Locale#toString
5165         * @hide
5166         */
5167        public static final String ACCESSIBILITY_CAPTIONING_PRESET =
5168                "accessibility_captioning_preset";
5169
5170        /**
5171         * Integer property that specifes the background color for captions as a
5172         * packed 32-bit color.
5173         *
5174         * @see android.graphics.Color#argb
5175         * @hide
5176         */
5177        public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
5178                "accessibility_captioning_background_color";
5179
5180        /**
5181         * Integer property that specifes the foreground color for captions as a
5182         * packed 32-bit color.
5183         *
5184         * @see android.graphics.Color#argb
5185         * @hide
5186         */
5187        public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
5188                "accessibility_captioning_foreground_color";
5189
5190        /**
5191         * Integer property that specifes the edge type for captions, one of:
5192         * <ul>
5193         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
5194         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
5195         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
5196         * </ul>
5197         *
5198         * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
5199         * @hide
5200         */
5201        public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
5202                "accessibility_captioning_edge_type";
5203
5204        /**
5205         * Integer property that specifes the edge color for captions as a
5206         * packed 32-bit color.
5207         *
5208         * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
5209         * @see android.graphics.Color#argb
5210         * @hide
5211         */
5212        public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
5213                "accessibility_captioning_edge_color";
5214
5215        /**
5216         * Integer property that specifes the window color for captions as a
5217         * packed 32-bit color.
5218         *
5219         * @see android.graphics.Color#argb
5220         * @hide
5221         */
5222        public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
5223                "accessibility_captioning_window_color";
5224
5225        /**
5226         * String property that specifies the typeface for captions, one of:
5227         * <ul>
5228         * <li>DEFAULT
5229         * <li>MONOSPACE
5230         * <li>SANS_SERIF
5231         * <li>SERIF
5232         * </ul>
5233         *
5234         * @see android.graphics.Typeface
5235         * @hide
5236         */
5237        public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
5238                "accessibility_captioning_typeface";
5239
5240        /**
5241         * Floating point property that specifies font scaling for captions.
5242         *
5243         * @hide
5244         */
5245        public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
5246                "accessibility_captioning_font_scale";
5247
5248        /**
5249         * Setting that specifies whether display color inversion is enabled.
5250         */
5251        public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
5252                "accessibility_display_inversion_enabled";
5253
5254        /**
5255         * Setting that specifies whether display color space adjustment is
5256         * enabled.
5257         *
5258         * @hide
5259         */
5260        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
5261                "accessibility_display_daltonizer_enabled";
5262
5263        /**
5264         * Integer property that specifies the type of color space adjustment to
5265         * perform. Valid values are defined in AccessibilityManager.
5266         *
5267         * @hide
5268         */
5269        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
5270                "accessibility_display_daltonizer";
5271
5272        /**
5273         * Float list that specifies the color matrix to apply to
5274         * the display. Valid values are defined in AccessibilityManager.
5275         *
5276         * @hide
5277         */
5278        public static final String ACCESSIBILITY_DISPLAY_COLOR_MATRIX =
5279                "accessibility_display_color_matrix";
5280
5281        /**
5282         * Setting that specifies whether automatic click when the mouse pointer stops moving is
5283         * enabled.
5284         *
5285         * @hide
5286         */
5287        public static final String ACCESSIBILITY_AUTOCLICK_ENABLED =
5288                "accessibility_autoclick_enabled";
5289
5290        /**
5291         * Integer setting specifying amount of time in ms the mouse pointer has to stay still
5292         * before performing click when {@link #ACCESSIBILITY_AUTOCLICK_ENABLED} is set.
5293         *
5294         * @see #ACCESSIBILITY_AUTOCLICK_ENABLED
5295         * @hide
5296         */
5297        public static final String ACCESSIBILITY_AUTOCLICK_DELAY =
5298                "accessibility_autoclick_delay";
5299
5300        /**
5301         * Whether or not larger size icons are used for the pointer of mouse/trackpad for
5302         * accessibility.
5303         * (0 = false, 1 = true)
5304         * @hide
5305         */
5306        public static final String ACCESSIBILITY_LARGE_POINTER_ICON =
5307                "accessibility_large_pointer_icon";
5308
5309        /**
5310         * The timeout for considering a press to be a long press in milliseconds.
5311         * @hide
5312         */
5313        public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";
5314
5315        /**
5316         * List of the enabled print services.
5317         *
5318         * N and beyond uses {@link #DISABLED_PRINT_SERVICES}. But this might be used in an upgrade
5319         * from pre-N.
5320         *
5321         * @hide
5322         */
5323        public static final String ENABLED_PRINT_SERVICES =
5324            "enabled_print_services";
5325
5326        /**
5327         * List of the disabled print services.
5328         *
5329         * @hide
5330         */
5331        public static final String DISABLED_PRINT_SERVICES =
5332            "disabled_print_services";
5333
5334        /**
5335         * The saved value for WindowManagerService.setForcedDisplayDensity()
5336         * formatted as a single integer representing DPI. If unset, then use
5337         * the real display density.
5338         *
5339         * @hide
5340         */
5341        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";
5342
5343        /**
5344         * Setting to always use the default text-to-speech settings regardless
5345         * of the application settings.
5346         * 1 = override application settings,
5347         * 0 = use application settings (if specified).
5348         *
5349         * @deprecated  The value of this setting is no longer respected by
5350         * the framework text to speech APIs as of the Ice Cream Sandwich release.
5351         */
5352        @Deprecated
5353        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
5354
5355        /**
5356         * Default text-to-speech engine speech rate. 100 = 1x
5357         */
5358        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
5359
5360        /**
5361         * Default text-to-speech engine pitch. 100 = 1x
5362         */
5363        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
5364
5365        /**
5366         * Default text-to-speech engine.
5367         */
5368        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
5369
5370        /**
5371         * Default text-to-speech language.
5372         *
5373         * @deprecated this setting is no longer in use, as of the Ice Cream
5374         * Sandwich release. Apps should never need to read this setting directly,
5375         * instead can query the TextToSpeech framework classes for the default
5376         * locale. {@link TextToSpeech#getLanguage()}.
5377         */
5378        @Deprecated
5379        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
5380
5381        /**
5382         * Default text-to-speech country.
5383         *
5384         * @deprecated this setting is no longer in use, as of the Ice Cream
5385         * Sandwich release. Apps should never need to read this setting directly,
5386         * instead can query the TextToSpeech framework classes for the default
5387         * locale. {@link TextToSpeech#getLanguage()}.
5388         */
5389        @Deprecated
5390        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
5391
5392        /**
5393         * Default text-to-speech locale variant.
5394         *
5395         * @deprecated this setting is no longer in use, as of the Ice Cream
5396         * Sandwich release. Apps should never need to read this setting directly,
5397         * instead can query the TextToSpeech framework classes for the
5398         * locale that is in use {@link TextToSpeech#getLanguage()}.
5399         */
5400        @Deprecated
5401        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
5402
5403        /**
5404         * Stores the default tts locales on a per engine basis. Stored as
5405         * a comma seperated list of values, each value being of the form
5406         * {@code engine_name:locale} for example,
5407         * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
5408         * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
5409         * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
5410         * setting directly, and can query the TextToSpeech framework classes
5411         * for the locale that is in use.
5412         *
5413         * @hide
5414         */
5415        public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";
5416
5417        /**
5418         * Space delimited list of plugin packages that are enabled.
5419         */
5420        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
5421
5422        /**
5423         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
5424         * instead.
5425         */
5426        @Deprecated
5427        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
5428                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
5429
5430        /**
5431         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
5432         * instead.
5433         */
5434        @Deprecated
5435        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
5436                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
5437
5438        /**
5439         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
5440         * instead.
5441         */
5442        @Deprecated
5443        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
5444                Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
5445
5446        /**
5447         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
5448         * instead.
5449         */
5450        @Deprecated
5451        public static final String WIFI_ON = Global.WIFI_ON;
5452
5453        /**
5454         * The acceptable packet loss percentage (range 0 - 100) before trying
5455         * another AP on the same network.
5456         * @deprecated This setting is not used.
5457         */
5458        @Deprecated
5459        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
5460                "wifi_watchdog_acceptable_packet_loss_percentage";
5461
5462        /**
5463         * The number of access points required for a network in order for the
5464         * watchdog to monitor it.
5465         * @deprecated This setting is not used.
5466         */
5467        @Deprecated
5468        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
5469
5470        /**
5471         * The delay between background checks.
5472         * @deprecated This setting is not used.
5473         */
5474        @Deprecated
5475        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
5476                "wifi_watchdog_background_check_delay_ms";
5477
5478        /**
5479         * Whether the Wi-Fi watchdog is enabled for background checking even
5480         * after it thinks the user has connected to a good access point.
5481         * @deprecated This setting is not used.
5482         */
5483        @Deprecated
5484        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
5485                "wifi_watchdog_background_check_enabled";
5486
5487        /**
5488         * The timeout for a background ping
5489         * @deprecated This setting is not used.
5490         */
5491        @Deprecated
5492        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
5493                "wifi_watchdog_background_check_timeout_ms";
5494
5495        /**
5496         * The number of initial pings to perform that *may* be ignored if they
5497         * fail. Again, if these fail, they will *not* be used in packet loss
5498         * calculation. For example, one network always seemed to time out for
5499         * the first couple pings, so this is set to 3 by default.
5500         * @deprecated This setting is not used.
5501         */
5502        @Deprecated
5503        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
5504            "wifi_watchdog_initial_ignored_ping_count";
5505
5506        /**
5507         * The maximum number of access points (per network) to attempt to test.
5508         * If this number is reached, the watchdog will no longer monitor the
5509         * initial connection state for the network. This is a safeguard for
5510         * networks containing multiple APs whose DNS does not respond to pings.
5511         * @deprecated This setting is not used.
5512         */
5513        @Deprecated
5514        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
5515
5516        /**
5517         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
5518         */
5519        @Deprecated
5520        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
5521
5522        /**
5523         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
5524         * @deprecated This setting is not used.
5525         */
5526        @Deprecated
5527        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
5528
5529        /**
5530         * The number of pings to test if an access point is a good connection.
5531         * @deprecated This setting is not used.
5532         */
5533        @Deprecated
5534        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
5535
5536        /**
5537         * The delay between pings.
5538         * @deprecated This setting is not used.
5539         */
5540        @Deprecated
5541        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
5542
5543        /**
5544         * The timeout per ping.
5545         * @deprecated This setting is not used.
5546         */
5547        @Deprecated
5548        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
5549
5550        /**
5551         * @deprecated Use
5552         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
5553         */
5554        @Deprecated
5555        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
5556
5557        /**
5558         * @deprecated Use
5559         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
5560         */
5561        @Deprecated
5562        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
5563                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
5564
5565        /**
5566         * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
5567         * the receivers of the PendingIntent an opportunity to make a new network request before
5568         * the Network satisfying the request is potentially removed.
5569         *
5570         * @hide
5571         */
5572        public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
5573                "connectivity_release_pending_intent_delay_ms";
5574
5575        /**
5576         * Whether background data usage is allowed.
5577         *
5578         * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
5579         *             availability of background data depends on several
5580         *             combined factors. When background data is unavailable,
5581         *             {@link ConnectivityManager#getActiveNetworkInfo()} will
5582         *             now appear disconnected.
5583         */
5584        @Deprecated
5585        public static final String BACKGROUND_DATA = "background_data";
5586
5587        /**
5588         * Origins for which browsers should allow geolocation by default.
5589         * The value is a space-separated list of origins.
5590         */
5591        public static final String ALLOWED_GEOLOCATION_ORIGINS
5592                = "allowed_geolocation_origins";
5593
5594        /**
5595         * The preferred TTY mode     0 = TTy Off, CDMA default
5596         *                            1 = TTY Full
5597         *                            2 = TTY HCO
5598         *                            3 = TTY VCO
5599         * @hide
5600         */
5601        public static final String PREFERRED_TTY_MODE =
5602                "preferred_tty_mode";
5603
5604        /**
5605         * Whether the enhanced voice privacy mode is enabled.
5606         * 0 = normal voice privacy
5607         * 1 = enhanced voice privacy
5608         * @hide
5609         */
5610        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
5611
5612        /**
5613         * Whether the TTY mode mode is enabled.
5614         * 0 = disabled
5615         * 1 = enabled
5616         * @hide
5617         */
5618        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
5619
5620        /**
5621         * Controls whether settings backup is enabled.
5622         * Type: int ( 0 = disabled, 1 = enabled )
5623         * @hide
5624         */
5625        public static final String BACKUP_ENABLED = "backup_enabled";
5626
5627        /**
5628         * Controls whether application data is automatically restored from backup
5629         * at install time.
5630         * Type: int ( 0 = disabled, 1 = enabled )
5631         * @hide
5632         */
5633        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
5634
5635        /**
5636         * Indicates whether settings backup has been fully provisioned.
5637         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
5638         * @hide
5639         */
5640        public static final String BACKUP_PROVISIONED = "backup_provisioned";
5641
5642        /**
5643         * Component of the transport to use for backup/restore.
5644         * @hide
5645         */
5646        public static final String BACKUP_TRANSPORT = "backup_transport";
5647
5648        /**
5649         * Version for which the setup wizard was last shown.  Bumped for
5650         * each release when there is new setup information to show.
5651         * @hide
5652         */
5653        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
5654
5655        /**
5656         * The interval in milliseconds after which Wi-Fi is considered idle.
5657         * When idle, it is possible for the device to be switched from Wi-Fi to
5658         * the mobile data network.
5659         * @hide
5660         * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
5661         * instead.
5662         */
5663        @Deprecated
5664        public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;
5665
5666        /**
5667         * The global search provider chosen by the user (if multiple global
5668         * search providers are installed). This will be the provider returned
5669         * by {@link SearchManager#getGlobalSearchActivity()} if it's still
5670         * installed. This setting is stored as a flattened component name as
5671         * per {@link ComponentName#flattenToString()}.
5672         *
5673         * @hide
5674         */
5675        public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
5676                "search_global_search_activity";
5677
5678        /**
5679         * The number of promoted sources in GlobalSearch.
5680         * @hide
5681         */
5682        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
5683        /**
5684         * The maximum number of suggestions returned by GlobalSearch.
5685         * @hide
5686         */
5687        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
5688        /**
5689         * The number of suggestions GlobalSearch will ask each non-web search source for.
5690         * @hide
5691         */
5692        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
5693        /**
5694         * The number of suggestions the GlobalSearch will ask the web search source for.
5695         * @hide
5696         */
5697        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
5698                "search_web_results_override_limit";
5699        /**
5700         * The number of milliseconds that GlobalSearch will wait for suggestions from
5701         * promoted sources before continuing with all other sources.
5702         * @hide
5703         */
5704        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
5705                "search_promoted_source_deadline_millis";
5706        /**
5707         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
5708         * @hide
5709         */
5710        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
5711        /**
5712         * The maximum number of milliseconds that GlobalSearch shows the previous results
5713         * after receiving a new query.
5714         * @hide
5715         */
5716        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
5717        /**
5718         * The maximum age of log data used for shortcuts in GlobalSearch.
5719         * @hide
5720         */
5721        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
5722        /**
5723         * The maximum age of log data used for source ranking in GlobalSearch.
5724         * @hide
5725         */
5726        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
5727                "search_max_source_event_age_millis";
5728        /**
5729         * The minimum number of impressions needed to rank a source in GlobalSearch.
5730         * @hide
5731         */
5732        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
5733                "search_min_impressions_for_source_ranking";
5734        /**
5735         * The minimum number of clicks needed to rank a source in GlobalSearch.
5736         * @hide
5737         */
5738        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
5739                "search_min_clicks_for_source_ranking";
5740        /**
5741         * The maximum number of shortcuts shown by GlobalSearch.
5742         * @hide
5743         */
5744        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
5745        /**
5746         * The size of the core thread pool for suggestion queries in GlobalSearch.
5747         * @hide
5748         */
5749        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
5750                "search_query_thread_core_pool_size";
5751        /**
5752         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
5753         * @hide
5754         */
5755        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
5756                "search_query_thread_max_pool_size";
5757        /**
5758         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
5759         * @hide
5760         */
5761        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
5762                "search_shortcut_refresh_core_pool_size";
5763        /**
5764         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
5765         * @hide
5766         */
5767        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
5768                "search_shortcut_refresh_max_pool_size";
5769        /**
5770         * The maximun time that excess threads in the GlobalSeach thread pools will
5771         * wait before terminating.
5772         * @hide
5773         */
5774        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
5775                "search_thread_keepalive_seconds";
5776        /**
5777         * The maximum number of concurrent suggestion queries to each source.
5778         * @hide
5779         */
5780        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
5781                "search_per_source_concurrent_query_limit";
5782
5783        /**
5784         * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
5785         * @hide
5786         */
5787        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
5788
5789        /**
5790         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
5791         * @hide
5792         */
5793        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
5794
5795        /**
5796         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
5797         * @hide
5798         */
5799        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
5800
5801        /**
5802         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
5803         * @hide
5804         */
5805        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
5806
5807        /**
5808         * If nonzero, ANRs in invisible background processes bring up a dialog.
5809         * Otherwise, the process will be silently killed.
5810         * @hide
5811         */
5812        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
5813
5814        /**
5815         * The {@link ComponentName} string of the service to be used as the voice recognition
5816         * service.
5817         *
5818         * @hide
5819         */
5820        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
5821
5822        /**
5823         * Stores whether an user has consented to have apps verified through PAM.
5824         * The value is boolean (1 or 0).
5825         *
5826         * @hide
5827         */
5828        public static final String PACKAGE_VERIFIER_USER_CONSENT =
5829            "package_verifier_user_consent";
5830
5831        /**
5832         * The {@link ComponentName} string of the selected spell checker service which is
5833         * one of the services managed by the text service manager.
5834         *
5835         * @hide
5836         */
5837        public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";
5838
5839        /**
5840         * The {@link ComponentName} string of the selected subtype of the selected spell checker
5841         * service which is one of the services managed by the text service manager.
5842         *
5843         * @hide
5844         */
5845        public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
5846                "selected_spell_checker_subtype";
5847
5848        /**
5849         * The {@link ComponentName} string whether spell checker is enabled or not.
5850         *
5851         * @hide
5852         */
5853        public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";
5854
5855        /**
5856         * What happens when the user presses the Power button while in-call
5857         * and the screen is on.<br/>
5858         * <b>Values:</b><br/>
5859         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
5860         * 2 - The Power button hangs up the current call.<br/>
5861         *
5862         * @hide
5863         */
5864        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
5865
5866        /**
5867         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
5868         * @hide
5869         */
5870        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
5871
5872        /**
5873         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
5874         * @hide
5875         */
5876        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
5877
5878        /**
5879         * INCALL_POWER_BUTTON_BEHAVIOR default value.
5880         * @hide
5881         */
5882        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
5883                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
5884
5885        /**
5886         * Whether the device should wake when the wake gesture sensor detects motion.
5887         * @hide
5888         */
5889        public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";
5890
5891        /**
5892         * Whether the device should doze if configured.
5893         * @hide
5894         */
5895        public static final String DOZE_ENABLED = "doze_enabled";
5896
5897        /**
5898         * The current night mode that has been selected by the user.  Owned
5899         * and controlled by UiModeManagerService.  Constants are as per
5900         * UiModeManager.
5901         * @hide
5902         */
5903        public static final String UI_NIGHT_MODE = "ui_night_mode";
5904
5905        /**
5906         * Whether screensavers are enabled.
5907         * @hide
5908         */
5909        public static final String SCREENSAVER_ENABLED = "screensaver_enabled";
5910
5911        /**
5912         * The user's chosen screensaver components.
5913         *
5914         * These will be launched by the PhoneWindowManager after a timeout when not on
5915         * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
5916         * @hide
5917         */
5918        public static final String SCREENSAVER_COMPONENTS = "screensaver_components";
5919
5920        /**
5921         * If screensavers are enabled, whether the screensaver should be automatically launched
5922         * when the device is inserted into a (desk) dock.
5923         * @hide
5924         */
5925        public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";
5926
5927        /**
5928         * If screensavers are enabled, whether the screensaver should be automatically launched
5929         * when the screen times out when not on battery.
5930         * @hide
5931         */
5932        public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";
5933
5934        /**
5935         * If screensavers are enabled, the default screensaver component.
5936         * @hide
5937         */
5938        public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";
5939
5940        /**
5941         * The default NFC payment component
5942         * @hide
5943         */
5944        public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";
5945
5946        /**
5947         * Whether NFC payment is handled by the foreground application or a default.
5948         * @hide
5949         */
5950        public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";
5951
5952        /**
5953         * Specifies the package name currently configured to be the primary sms application
5954         * @hide
5955         */
5956        public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";
5957
5958        /**
5959         * Specifies the package name currently configured to be the default dialer application
5960         * @hide
5961         */
5962        public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";
5963
5964        /**
5965         * Specifies the package name currently configured to be the emergency assistance application
5966         *
5967         * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
5968         *
5969         * @hide
5970         */
5971        public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";
5972
5973        /**
5974         * Specifies whether the current app context on scren (assist data) will be sent to the
5975         * assist application (active voice interaction service).
5976         *
5977         * @hide
5978         */
5979        public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";
5980
5981        /**
5982         * Specifies whether a screenshot of the screen contents will be sent to the assist
5983         * application (active voice interaction service).
5984         *
5985         * @hide
5986         */
5987        public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";
5988
5989        /**
5990         * Names of the service components that the current user has explicitly allowed to
5991         * see all of the user's notifications, separated by ':'.
5992         *
5993         * @hide
5994         */
5995        public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
5996
5997        /**
5998         * Names of the packages that the current user has explicitly allowed to
5999         * manage notification policy configuration, separated by ':'.
6000         *
6001         * @hide
6002         */
6003        @TestApi
6004        public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
6005                "enabled_notification_policy_access_packages";
6006
6007        /** @hide */
6008        public static final String BAR_SERVICE_COMPONENT = "bar_service_component";
6009
6010        /** @hide */
6011        public static final String VOLUME_CONTROLLER_SERVICE_COMPONENT
6012                = "volume_controller_service_component";
6013
6014        /** @hide */
6015        public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";
6016
6017        /**
6018         * This is the query URI for finding a print service to install.
6019         *
6020         * @hide
6021         */
6022        public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";
6023
6024        /**
6025         * This is the query URI for finding a NFC payment service to install.
6026         *
6027         * @hide
6028         */
6029        public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";
6030
6031        /**
6032         * If enabled, apps should try to skip any introductory hints on first launch. This might
6033         * apply to users that are already familiar with the environment or temporary users.
6034         * <p>
6035         * Type : int (0 to show hints, 1 to skip showing hints)
6036         */
6037        public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";
6038
6039        /**
6040         * Persisted playback time after a user confirmation of an unsafe volume level.
6041         *
6042         * @hide
6043         */
6044        public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";
6045
6046        /**
6047         * This preference enables notification display on the lockscreen.
6048         * @hide
6049         */
6050        public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
6051                "lock_screen_show_notifications";
6052
6053        /**
6054         * List of TV inputs that are currently hidden. This is a string
6055         * containing the IDs of all hidden TV inputs. Each ID is encoded by
6056         * {@link android.net.Uri#encode(String)} and separated by ':'.
6057         * @hide
6058         */
6059        public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";
6060
6061        /**
6062         * List of custom TV input labels. This is a string containing <TV input id, custom name>
6063         * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
6064         * and separated by ','. Each pair is separated by ':'.
6065         * @hide
6066         */
6067        public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";
6068
6069        /**
6070         * Whether automatic routing of system audio to USB audio peripheral is disabled.
6071         * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
6072         * and 0 means automatic routing is enabled.
6073         *
6074         * @hide
6075         */
6076        public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
6077                "usb_audio_automatic_routing_disabled";
6078
6079        /**
6080         * The timeout in milliseconds before the device fully goes to sleep after
6081         * a period of inactivity.  This value sets an upper bound on how long the device
6082         * will stay awake or dreaming without user activity.  It should generally
6083         * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
6084         * will sleep before it ever has a chance to dream.
6085         * <p>
6086         * Use -1 to disable this timeout.
6087         * </p>
6088         *
6089         * @hide
6090         */
6091        public static final String SLEEP_TIMEOUT = "sleep_timeout";
6092
6093        /**
6094         * Controls whether double tap to wake is enabled.
6095         * @hide
6096         */
6097        public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";
6098
6099        /**
6100         * The current assistant component. It could be a voice interaction service,
6101         * or an activity that handles ACTION_ASSIST, or empty which means using the default
6102         * handling.
6103         *
6104         * @hide
6105         */
6106        public static final String ASSISTANT = "assistant";
6107
6108        /**
6109         * Whether the camera launch gesture should be disabled.
6110         *
6111         * @hide
6112         */
6113        public static final String CAMERA_GESTURE_DISABLED = "camera_gesture_disabled";
6114
6115        /**
6116         * Whether the camera launch gesture to double tap the power button when the screen is off
6117         * should be disabled.
6118         *
6119         * @hide
6120         */
6121        public static final String CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED =
6122                "camera_double_tap_power_gesture_disabled";
6123
6124        /**
6125
6126        /**
6127         * Behavior of twilight on the device.
6128         * One of {@link #TWILIGHT_MODE_LOCKED_OFF}, {@link #TWILIGHT_MODE_LOCKED_ON}
6129         * or {@link #TWILIGHT_MODE_AUTO}.
6130         * @hide
6131         */
6132        public static final String TWILIGHT_MODE = "twilight_mode";
6133
6134        /**
6135         * Twilight mode always off.
6136         * @hide
6137         */
6138        public static final int TWILIGHT_MODE_LOCKED_OFF = 0;
6139
6140        /**
6141         * Twilight mode always on.
6142         * @hide
6143         */
6144        public static final int TWILIGHT_MODE_LOCKED_ON = 1;
6145
6146        /**
6147         * Twilight mode auto.
6148         * @hide
6149         */
6150        public static final int TWILIGHT_MODE_AUTO = 2;
6151
6152        /**
6153         * Twilight mode auto, temporarily overriden to on.
6154         * @hide
6155         */
6156        public static final int TWILIGHT_MODE_AUTO_OVERRIDE_OFF = 3;
6157
6158        /**
6159         * Twilight mode auto, temporarily overriden to off.
6160         * @hide
6161         */
6162        public static final int TWILIGHT_MODE_AUTO_OVERRIDE_ON = 4;
6163
6164        /**
6165         * Whether brightness should automatically adjust based on twilight state.
6166         * @hide
6167         */
6168        public static final String BRIGHTNESS_USE_TWILIGHT = "brightness_use_twilight";
6169
6170        /**
6171         * Names of the service components that the current user has explicitly allowed to
6172         * be a VR mode listener, separated by ':'.
6173         *
6174         * @hide
6175         */
6176        public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners";
6177
6178        /**
6179         * Behavior of the display while in VR mode.
6180         *
6181         * One of {@link #VR_DISPLAY_MODE_LOW_PERSISTENCE} or {@link #VR_DISPLAY_MODE_OFF}.
6182         *
6183         * @hide
6184         */
6185        public static final String VR_DISPLAY_MODE = "vr_display_mode";
6186
6187        /**
6188         * Lower the display persistence while the system is in VR mode.
6189         *
6190         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6191         *
6192         * @hide.
6193         */
6194        public static final int VR_DISPLAY_MODE_LOW_PERSISTENCE = 0;
6195
6196        /**
6197         * Do not alter the display persistence while the system is in VR mode.
6198         *
6199         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6200         *
6201         * @hide.
6202         */
6203        public static final int VR_DISPLAY_MODE_OFF = 1;
6204
6205        /**
6206         * Whether parent user can access remote contact in managed profile.
6207         *
6208         * @hide
6209         */
6210        public static final String MANAGED_PROFILE_CONTACT_REMOTE_SEARCH =
6211                "managed_profile_contact_remote_search";
6212
6213        /**
6214         * This are the settings to be backed up.
6215         *
6216         * NOTE: Settings are backed up and restored in the order they appear
6217         *       in this array. If you have one setting depending on another,
6218         *       make sure that they are ordered appropriately.
6219         *
6220         * @hide
6221         */
6222        public static final String[] SETTINGS_TO_BACKUP = {
6223            BUGREPORT_IN_POWER_MENU,                            // moved to global
6224            ALLOW_MOCK_LOCATION,
6225            PARENTAL_CONTROL_ENABLED,
6226            PARENTAL_CONTROL_REDIRECT_URL,
6227            USB_MASS_STORAGE_ENABLED,                           // moved to global
6228            ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
6229            ACCESSIBILITY_DISPLAY_DALTONIZER,
6230            ACCESSIBILITY_DISPLAY_COLOR_MATRIX,
6231            ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
6232            ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
6233            ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
6234            ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE,
6235            ACCESSIBILITY_SCRIPT_INJECTION,
6236            ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS,
6237            BACKUP_AUTO_RESTORE,
6238            ENABLED_ACCESSIBILITY_SERVICES,
6239            ENABLED_NOTIFICATION_LISTENERS,
6240            ENABLED_VR_LISTENERS,
6241            ENABLED_INPUT_METHODS,
6242            TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
6243            TOUCH_EXPLORATION_ENABLED,
6244            ACCESSIBILITY_ENABLED,
6245            ACCESSIBILITY_SPEAK_PASSWORD,
6246            ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
6247            ACCESSIBILITY_CAPTIONING_PRESET,
6248            ACCESSIBILITY_CAPTIONING_ENABLED,
6249            ACCESSIBILITY_CAPTIONING_LOCALE,
6250            ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
6251            ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
6252            ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
6253            ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
6254            ACCESSIBILITY_CAPTIONING_TYPEFACE,
6255            ACCESSIBILITY_CAPTIONING_FONT_SCALE,
6256            ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
6257            TTS_USE_DEFAULTS,
6258            TTS_DEFAULT_RATE,
6259            TTS_DEFAULT_PITCH,
6260            TTS_DEFAULT_SYNTH,
6261            TTS_DEFAULT_LANG,
6262            TTS_DEFAULT_COUNTRY,
6263            TTS_ENABLED_PLUGINS,
6264            TTS_DEFAULT_LOCALE,
6265            SHOW_IME_WITH_HARD_KEYBOARD,
6266            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
6267            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
6268            WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
6269            SELECTED_SPELL_CHECKER,
6270            SELECTED_SPELL_CHECKER_SUBTYPE,
6271            SPELL_CHECKER_ENABLED,
6272            MOUNT_PLAY_NOTIFICATION_SND,
6273            MOUNT_UMS_AUTOSTART,
6274            MOUNT_UMS_PROMPT,
6275            MOUNT_UMS_NOTIFY_ENABLED,
6276            SLEEP_TIMEOUT,
6277            DOUBLE_TAP_TO_WAKE,
6278            WAKE_GESTURE_ENABLED,
6279            LONG_PRESS_TIMEOUT,
6280            CAMERA_GESTURE_DISABLED,
6281            ACCESSIBILITY_AUTOCLICK_ENABLED,
6282            ACCESSIBILITY_AUTOCLICK_DELAY,
6283            ACCESSIBILITY_LARGE_POINTER_ICON,
6284            PREFERRED_TTY_MODE,
6285            ENHANCED_VOICE_PRIVACY_ENABLED,
6286            TTY_MODE_ENABLED,
6287            INCALL_POWER_BUTTON_BEHAVIOR
6288        };
6289
6290        /**
6291         * These entries are considered common between the personal and the managed profile,
6292         * since the managed profile doesn't get to change them.
6293         */
6294        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
6295
6296        static {
6297            CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
6298            CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
6299            CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
6300            CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
6301            CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
6302            CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
6303            CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
6304            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PREVIOUS_MODE);
6305            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
6306            CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
6307            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
6308            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
6309        }
6310
6311        /** @hide */
6312        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
6313            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
6314        }
6315
6316        /**
6317         * Helper method for determining if a location provider is enabled.
6318         *
6319         * @param cr the content resolver to use
6320         * @param provider the location provider to query
6321         * @return true if the provider is enabled
6322         *
6323         * @deprecated use {@link #LOCATION_MODE} or
6324         *             {@link LocationManager#isProviderEnabled(String)}
6325         */
6326        @Deprecated
6327        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
6328            return isLocationProviderEnabledForUser(cr, provider, UserHandle.myUserId());
6329        }
6330
6331        /**
6332         * Helper method for determining if a location provider is enabled.
6333         * @param cr the content resolver to use
6334         * @param provider the location provider to query
6335         * @param userId the userId to query
6336         * @return true if the provider is enabled
6337         * @deprecated use {@link #LOCATION_MODE} or
6338         *             {@link LocationManager#isProviderEnabled(String)}
6339         * @hide
6340         */
6341        @Deprecated
6342        public static final boolean isLocationProviderEnabledForUser(ContentResolver cr, String provider, int userId) {
6343            String allowedProviders = Settings.Secure.getStringForUser(cr,
6344                    LOCATION_PROVIDERS_ALLOWED, userId);
6345            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
6346        }
6347
6348        /**
6349         * Thread-safe method for enabling or disabling a single location provider.
6350         * @param cr the content resolver to use
6351         * @param provider the location provider to enable or disable
6352         * @param enabled true if the provider should be enabled
6353         * @deprecated use {@link #putInt(ContentResolver, String, int)} and {@link #LOCATION_MODE}
6354         */
6355        @Deprecated
6356        public static final void setLocationProviderEnabled(ContentResolver cr,
6357                String provider, boolean enabled) {
6358            setLocationProviderEnabledForUser(cr, provider, enabled, UserHandle.myUserId());
6359        }
6360
6361        /**
6362         * Thread-safe method for enabling or disabling a single location provider.
6363         *
6364         * @param cr the content resolver to use
6365         * @param provider the location provider to enable or disable
6366         * @param enabled true if the provider should be enabled
6367         * @param userId the userId for which to enable/disable providers
6368         * @return true if the value was set, false on database errors
6369         * @deprecated use {@link #putIntForUser(ContentResolver, String, int, int)} and
6370         *             {@link #LOCATION_MODE}
6371         * @hide
6372         */
6373        @Deprecated
6374        public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
6375                String provider, boolean enabled, int userId) {
6376            synchronized (mLocationSettingsLock) {
6377                // to ensure thread safety, we write the provider name with a '+' or '-'
6378                // and let the SettingsProvider handle it rather than reading and modifying
6379                // the list of enabled providers.
6380                if (enabled) {
6381                    provider = "+" + provider;
6382                } else {
6383                    provider = "-" + provider;
6384                }
6385                return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
6386                        userId);
6387            }
6388        }
6389
6390        /**
6391         * Saves the current location mode into {@link #LOCATION_PREVIOUS_MODE}.
6392         */
6393        private static final boolean saveLocationModeForUser(ContentResolver cr, int userId) {
6394            final int mode = getLocationModeForUser(cr, userId);
6395            return putIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE, mode, userId);
6396        }
6397
6398        /**
6399         * Restores the current location mode from {@link #LOCATION_PREVIOUS_MODE}.
6400         */
6401        private static final boolean restoreLocationModeForUser(ContentResolver cr, int userId) {
6402            int mode = getIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE,
6403                    LOCATION_MODE_HIGH_ACCURACY, userId);
6404            // Make sure that the previous mode is never "off". Otherwise the user won't be able to
6405            // turn on location any longer.
6406            if (mode == LOCATION_MODE_OFF) {
6407                mode = LOCATION_MODE_HIGH_ACCURACY;
6408            }
6409            return setLocationModeForUser(cr, mode, userId);
6410        }
6411
6412        /**
6413         * Thread-safe method for setting the location mode to one of
6414         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
6415         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
6416         *
6417         * @param cr the content resolver to use
6418         * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
6419         * @param userId the userId for which to change mode
6420         * @return true if the value was set, false on database errors
6421         *
6422         * @throws IllegalArgumentException if mode is not one of the supported values
6423         */
6424        private static final boolean setLocationModeForUser(ContentResolver cr, int mode,
6425                int userId) {
6426            synchronized (mLocationSettingsLock) {
6427                boolean gps = false;
6428                boolean network = false;
6429                switch (mode) {
6430                    case LOCATION_MODE_PREVIOUS:
6431                        // Retrieve the actual mode and set to that mode.
6432                        return restoreLocationModeForUser(cr, userId);
6433                    case LOCATION_MODE_OFF:
6434                        saveLocationModeForUser(cr, userId);
6435                        break;
6436                    case LOCATION_MODE_SENSORS_ONLY:
6437                        gps = true;
6438                        break;
6439                    case LOCATION_MODE_BATTERY_SAVING:
6440                        network = true;
6441                        break;
6442                    case LOCATION_MODE_HIGH_ACCURACY:
6443                        gps = true;
6444                        network = true;
6445                        break;
6446                    default:
6447                        throw new IllegalArgumentException("Invalid location mode: " + mode);
6448                }
6449                // Note it's important that we set the NLP mode first. The Google implementation
6450                // of NLP clears its NLP consent setting any time it receives a
6451                // LocationManager.PROVIDERS_CHANGED_ACTION broadcast and NLP is disabled. Also,
6452                // it shows an NLP consent dialog any time it receives the broadcast, NLP is
6453                // enabled, and the NLP consent is not set. If 1) we were to enable GPS first,
6454                // 2) a setup wizard has its own NLP consent UI that sets the NLP consent setting,
6455                // and 3) the receiver happened to complete before we enabled NLP, then the Google
6456                // NLP would detect the attempt to enable NLP and show a redundant NLP consent
6457                // dialog. Then the people who wrote the setup wizard would be sad.
6458                boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
6459                        cr, LocationManager.NETWORK_PROVIDER, network, userId);
6460                boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
6461                        cr, LocationManager.GPS_PROVIDER, gps, userId);
6462                return gpsSuccess && nlpSuccess;
6463            }
6464        }
6465
6466        /**
6467         * Thread-safe method for reading the location mode, returns one of
6468         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
6469         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
6470         *
6471         * @param cr the content resolver to use
6472         * @param userId the userId for which to read the mode
6473         * @return the location mode
6474         */
6475        private static final int getLocationModeForUser(ContentResolver cr, int userId) {
6476            synchronized (mLocationSettingsLock) {
6477                boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
6478                        cr, LocationManager.GPS_PROVIDER, userId);
6479                boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
6480                        cr, LocationManager.NETWORK_PROVIDER, userId);
6481                if (gpsEnabled && networkEnabled) {
6482                    return LOCATION_MODE_HIGH_ACCURACY;
6483                } else if (gpsEnabled) {
6484                    return LOCATION_MODE_SENSORS_ONLY;
6485                } else if (networkEnabled) {
6486                    return LOCATION_MODE_BATTERY_SAVING;
6487                } else {
6488                    return LOCATION_MODE_OFF;
6489                }
6490            }
6491        }
6492    }
6493
6494    /**
6495     * Global system settings, containing preferences that always apply identically
6496     * to all defined users.  Applications can read these but are not allowed to write;
6497     * like the "Secure" settings, these are for preferences that the user must
6498     * explicitly modify through the system UI or specialized APIs for those values.
6499     */
6500    public static final class Global extends NameValueTable {
6501        /**
6502         * The content:// style URL for global secure settings items.  Not public.
6503         */
6504        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");
6505
6506        /**
6507         * Whether users are allowed to add more users or guest from lockscreen.
6508         * <p>
6509         * Type: int
6510         * @hide
6511         */
6512        public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";
6513
6514        /**
6515         * Setting whether the global gesture for enabling accessibility is enabled.
6516         * If this gesture is enabled the user will be able to perfrom it to enable
6517         * the accessibility state without visiting the settings app.
6518         * @hide
6519         */
6520        public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
6521                "enable_accessibility_global_gesture_enabled";
6522
6523        /**
6524         * Whether Airplane Mode is on.
6525         */
6526        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
6527
6528        /**
6529         * Whether Theater Mode is on.
6530         * {@hide}
6531         */
6532        @SystemApi
6533        public static final String THEATER_MODE_ON = "theater_mode_on";
6534
6535        /**
6536         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
6537         */
6538        public static final String RADIO_BLUETOOTH = "bluetooth";
6539
6540        /**
6541         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
6542         */
6543        public static final String RADIO_WIFI = "wifi";
6544
6545        /**
6546         * {@hide}
6547         */
6548        public static final String RADIO_WIMAX = "wimax";
6549        /**
6550         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
6551         */
6552        public static final String RADIO_CELL = "cell";
6553
6554        /**
6555         * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
6556         */
6557        public static final String RADIO_NFC = "nfc";
6558
6559        /**
6560         * A comma separated list of radios that need to be disabled when airplane mode
6561         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
6562         * included in the comma separated list.
6563         */
6564        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
6565
6566        /**
6567         * A comma separated list of radios that should to be disabled when airplane mode
6568         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
6569         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
6570         * will be turned off when entering airplane mode, but the user will be able to reenable
6571         * Wifi in the Settings app.
6572         *
6573         * {@hide}
6574         */
6575        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
6576
6577        /**
6578         * A Long representing a bitmap of profiles that should be disabled when bluetooth starts.
6579         * See {@link android.bluetooth.BluetoothProfile}.
6580         * {@hide}
6581         */
6582        public static final String BLUETOOTH_DISABLED_PROFILES = "bluetooth_disabled_profiles";
6583
6584        /**
6585         * A semi-colon separated list of Bluetooth interoperability workarounds.
6586         * Each entry is a partial Bluetooth device address string and an integer representing
6587         * the feature to be disabled, separated by a comma. The integer must correspond
6588         * to a interoperability feature as defined in "interop.h" in /system/bt.
6589         * <p>
6590         * Example: <br/>
6591         *   "00:11:22,0;01:02:03:04,2"
6592         * @hide
6593         */
6594       public static final String BLUETOOTH_INTEROPERABILITY_LIST = "bluetooth_interoperability_list";
6595
6596        /**
6597         * The policy for deciding when Wi-Fi should go to sleep (which will in
6598         * turn switch to using the mobile data as an Internet connection).
6599         * <p>
6600         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
6601         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
6602         * {@link #WIFI_SLEEP_POLICY_NEVER}.
6603         */
6604        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
6605
6606        /**
6607         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
6608         * policy, which is to sleep shortly after the turning off
6609         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
6610         */
6611        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
6612
6613        /**
6614         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
6615         * the device is on battery, and never go to sleep when the device is
6616         * plugged in.
6617         */
6618        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
6619
6620        /**
6621         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
6622         */
6623        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
6624
6625        /**
6626         * Value to specify if the user prefers the date, time and time zone
6627         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
6628         */
6629        public static final String AUTO_TIME = "auto_time";
6630
6631        /**
6632         * Value to specify if the user prefers the time zone
6633         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
6634         */
6635        public static final String AUTO_TIME_ZONE = "auto_time_zone";
6636
6637        /**
6638         * URI for the car dock "in" event sound.
6639         * @hide
6640         */
6641        public static final String CAR_DOCK_SOUND = "car_dock_sound";
6642
6643        /**
6644         * URI for the car dock "out" event sound.
6645         * @hide
6646         */
6647        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
6648
6649        /**
6650         * URI for the desk dock "in" event sound.
6651         * @hide
6652         */
6653        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
6654
6655        /**
6656         * URI for the desk dock "out" event sound.
6657         * @hide
6658         */
6659        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
6660
6661        /**
6662         * Whether to play a sound for dock events.
6663         * @hide
6664         */
6665        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
6666
6667        /**
6668         * URI for the "device locked" (keyguard shown) sound.
6669         * @hide
6670         */
6671        public static final String LOCK_SOUND = "lock_sound";
6672
6673        /**
6674         * URI for the "device unlocked" sound.
6675         * @hide
6676         */
6677        public static final String UNLOCK_SOUND = "unlock_sound";
6678
6679        /**
6680         * URI for the "device is trusted" sound, which is played when the device enters the trusted
6681         * state without unlocking.
6682         * @hide
6683         */
6684        public static final String TRUSTED_SOUND = "trusted_sound";
6685
6686        /**
6687         * URI for the low battery sound file.
6688         * @hide
6689         */
6690        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
6691
6692        /**
6693         * Whether to play a sound for low-battery alerts.
6694         * @hide
6695         */
6696        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
6697
6698        /**
6699         * URI for the "wireless charging started" sound.
6700         * @hide
6701         */
6702        public static final String WIRELESS_CHARGING_STARTED_SOUND =
6703                "wireless_charging_started_sound";
6704
6705        /**
6706         * Whether to play a sound for charging events.
6707         * @hide
6708         */
6709        public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";
6710
6711        /**
6712         * Whether we keep the device on while the device is plugged in.
6713         * Supported values are:
6714         * <ul>
6715         * <li>{@code 0} to never stay on while plugged in</li>
6716         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
6717         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
6718         * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
6719         * </ul>
6720         * These values can be OR-ed together.
6721         */
6722        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
6723
6724        /**
6725         * When the user has enable the option to have a "bug report" command
6726         * in the power menu.
6727         * @hide
6728         */
6729        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
6730
6731        /**
6732         * Whether ADB is enabled.
6733         */
6734        public static final String ADB_ENABLED = "adb_enabled";
6735
6736        /**
6737         * Whether Views are allowed to save their attribute data.
6738         * @hide
6739         */
6740        public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";
6741
6742        /**
6743         * Whether assisted GPS should be enabled or not.
6744         * @hide
6745         */
6746        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
6747
6748        /**
6749         * Whether bluetooth is enabled/disabled
6750         * 0=disabled. 1=enabled.
6751         */
6752        public static final String BLUETOOTH_ON = "bluetooth_on";
6753
6754        /**
6755         * CDMA Cell Broadcast SMS
6756         *                            0 = CDMA Cell Broadcast SMS disabled
6757         *                            1 = CDMA Cell Broadcast SMS enabled
6758         * @hide
6759         */
6760        public static final String CDMA_CELL_BROADCAST_SMS =
6761                "cdma_cell_broadcast_sms";
6762
6763        /**
6764         * The CDMA roaming mode 0 = Home Networks, CDMA default
6765         *                       1 = Roaming on Affiliated networks
6766         *                       2 = Roaming on any networks
6767         * @hide
6768         */
6769        public static final String CDMA_ROAMING_MODE = "roaming_settings";
6770
6771        /**
6772         * The CDMA subscription mode 0 = RUIM/SIM (default)
6773         *                                1 = NV
6774         * @hide
6775         */
6776        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
6777
6778        /** Inactivity timeout to track mobile data activity.
6779        *
6780        * If set to a positive integer, it indicates the inactivity timeout value in seconds to
6781        * infer the data activity of mobile network. After a period of no activity on mobile
6782        * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
6783        * intent is fired to indicate a transition of network status from "active" to "idle". Any
6784        * subsequent activity on mobile networks triggers the firing of {@code
6785        * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
6786        *
6787        * Network activity refers to transmitting or receiving data on the network interfaces.
6788        *
6789        * Tracking is disabled if set to zero or negative value.
6790        *
6791        * @hide
6792        */
6793       public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";
6794
6795       /** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
6796        * but for Wifi network.
6797        * @hide
6798        */
6799       public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";
6800
6801       /**
6802        * Whether or not data roaming is enabled. (0 = false, 1 = true)
6803        */
6804       public static final String DATA_ROAMING = "data_roaming";
6805
6806       /**
6807        * The value passed to a Mobile DataConnection via bringUp which defines the
6808        * number of retries to preform when setting up the initial connection. The default
6809        * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
6810        * @hide
6811        */
6812       public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";
6813
6814       /**
6815        * Whether any package can be on external storage. When this is true, any
6816        * package, regardless of manifest values, is a candidate for installing
6817        * or moving onto external storage. (0 = false, 1 = true)
6818        * @hide
6819        */
6820       public static final String FORCE_ALLOW_ON_EXTERNAL = "force_allow_on_external";
6821
6822        /**
6823         * Whether any activity can be resized. When this is true, any
6824         * activity, regardless of manifest values, can be resized for multi-window.
6825         * (0 = false, 1 = true)
6826         * @hide
6827         */
6828        public static final String DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES
6829                = "force_resizable_activities";
6830
6831        /**
6832         * Whether to enable experimental freeform support for windows.
6833         * @hide
6834         */
6835        public static final String DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT
6836                = "enable_freeform_support";
6837
6838       /**
6839        * Whether user has enabled development settings.
6840        */
6841       public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";
6842
6843       /**
6844        * Whether the device has been provisioned (0 = false, 1 = true).
6845        * <p>On a multiuser device with a separate system user, the screen may be locked
6846        * as soon as this is set to true and further activities cannot be launched on the
6847        * system user unless they are marked to show over keyguard.
6848        */
6849       public static final String DEVICE_PROVISIONED = "device_provisioned";
6850
6851       /**
6852        * Whether mobile data should be allowed while the device is being provisioned.
6853        * This allows the provisioning process to turn off mobile data before the user
6854        * has an opportunity to set things up, preventing other processes from burning
6855        * precious bytes before wifi is setup.
6856        * (0 = false, 1 = true)
6857        * @hide
6858        */
6859       public static final String DEVICE_PROVISIONING_MOBILE_DATA_ENABLED =
6860               "device_provisioning_mobile_data";
6861
6862       /**
6863        * The saved value for WindowManagerService.setForcedDisplaySize().
6864        * Two integers separated by a comma.  If unset, then use the real display size.
6865        * @hide
6866        */
6867       public static final String DISPLAY_SIZE_FORCED = "display_size_forced";
6868
6869       /**
6870        * The saved value for WindowManagerService.setForcedDisplayScalingMode().
6871        * 0 or unset if scaling is automatic, 1 if scaling is disabled.
6872        * @hide
6873        */
6874       public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";
6875
6876       /**
6877        * The maximum size, in bytes, of a download that the download manager will transfer over
6878        * a non-wifi connection.
6879        * @hide
6880        */
6881       public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
6882               "download_manager_max_bytes_over_mobile";
6883
6884       /**
6885        * The recommended maximum size, in bytes, of a download that the download manager should
6886        * transfer over a non-wifi connection. Over this size, the use will be warned, but will
6887        * have the option to start the download over the mobile connection anyway.
6888        * @hide
6889        */
6890       public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
6891               "download_manager_recommended_max_bytes_over_mobile";
6892
6893       /**
6894        * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
6895        */
6896       @Deprecated
6897       public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
6898
6899       /**
6900        * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
6901        * sent or processed. (0 = false, 1 = true)
6902        * @hide
6903        */
6904       public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";
6905
6906       /**
6907        * Whether HDMI system audio is enabled. If enabled, TV internal speaker is muted,
6908        * and the output is redirected to AV Receiver connected via
6909        * {@Global#HDMI_SYSTEM_AUDIO_OUTPUT}.
6910        * @hide
6911        */
6912       public static final String HDMI_SYSTEM_AUDIO_ENABLED = "hdmi_system_audio_enabled";
6913
6914       /**
6915        * Whether TV will automatically turn on upon reception of the CEC command
6916        * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
6917        * @hide
6918        */
6919       public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
6920               "hdmi_control_auto_wakeup_enabled";
6921
6922       /**
6923        * Whether TV will also turn off other CEC devices when it goes to standby mode.
6924        * (0 = false, 1 = true)
6925        * @hide
6926        */
6927       public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
6928               "hdmi_control_auto_device_off_enabled";
6929
6930       /**
6931        * Whether TV will switch to MHL port when a mobile device is plugged in.
6932        * (0 = false, 1 = true)
6933        * @hide
6934        */
6935       public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";
6936
6937       /**
6938        * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
6939        * @hide
6940        */
6941       public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";
6942
6943       /**
6944        * Whether mobile data connections are allowed by the user.  See
6945        * ConnectivityManager for more info.
6946        * @hide
6947        */
6948       public static final String MOBILE_DATA = "mobile_data";
6949
6950       /**
6951        * Whether the mobile data connection should remain active even when higher
6952        * priority networks like WiFi are active, to help make network switching faster.
6953        *
6954        * See ConnectivityService for more info.
6955        *
6956        * (0 = disabled, 1 = enabled)
6957        * @hide
6958        */
6959       public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
6960
6961       /** {@hide} */
6962       public static final String NETSTATS_ENABLED = "netstats_enabled";
6963       /** {@hide} */
6964       public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
6965       /** {@hide} */
6966       public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
6967       /** {@hide} */
6968       public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
6969       /** {@hide} */
6970       public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
6971
6972       /** {@hide} */
6973       public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
6974       /** {@hide} */
6975       public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
6976       /** {@hide} */
6977       public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
6978       /** {@hide} */
6979       public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";
6980
6981       /** {@hide} */
6982       public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
6983       /** {@hide} */
6984       public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
6985       /** {@hide} */
6986       public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
6987       /** {@hide} */
6988       public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";
6989
6990       /** {@hide} */
6991       public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
6992       /** {@hide} */
6993       public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
6994       /** {@hide} */
6995       public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
6996       /** {@hide} */
6997       public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";
6998
6999       /**
7000        * User preference for which network(s) should be used. Only the
7001        * connectivity service should touch this.
7002        */
7003       public static final String NETWORK_PREFERENCE = "network_preference";
7004
7005       /**
7006        * Which package name to use for network scoring. If null, or if the package is not a valid
7007        * scorer app, external network scores will neither be requested nor accepted.
7008        * @hide
7009        */
7010       public static final String NETWORK_SCORER_APP = "network_scorer_app";
7011
7012       /**
7013        * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
7014        * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
7015        * exceeded.
7016        * @hide
7017        */
7018       public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
7019
7020       /**
7021        * The length of time in milli-seconds that automatic small adjustments to
7022        * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
7023        * @hide
7024        */
7025       public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
7026
7027       /** Preferred NTP server. {@hide} */
7028       public static final String NTP_SERVER = "ntp_server";
7029       /** Timeout in milliseconds to wait for NTP server. {@hide} */
7030       public static final String NTP_TIMEOUT = "ntp_timeout";
7031
7032       /** {@hide} */
7033       public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";
7034
7035       /**
7036        * Sample validity in seconds to configure for the system DNS resolver.
7037        * {@hide}
7038        */
7039       public static final String DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS =
7040               "dns_resolver_sample_validity_seconds";
7041
7042       /**
7043        * Success threshold in percent for use with the system DNS resolver.
7044        * {@hide}
7045        */
7046       public static final String DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT =
7047                "dns_resolver_success_threshold_percent";
7048
7049       /**
7050        * Minimum number of samples needed for statistics to be considered meaningful in the
7051        * system DNS resolver.
7052        * {@hide}
7053        */
7054       public static final String DNS_RESOLVER_MIN_SAMPLES = "dns_resolver_min_samples";
7055
7056       /**
7057        * Maximum number taken into account for statistics purposes in the system DNS resolver.
7058        * {@hide}
7059        */
7060       public static final String DNS_RESOLVER_MAX_SAMPLES = "dns_resolver_max_samples";
7061
7062       /**
7063        * Whether to disable the automatic scheduling of system updates.
7064        * 1 = system updates won't be automatically scheduled (will always
7065        * present notification instead).
7066        * 0 = system updates will be automatically scheduled. (default)
7067        * @hide
7068        */
7069       @SystemApi
7070       public static final String OTA_DISABLE_AUTOMATIC_UPDATE = "ota_disable_automatic_update";
7071
7072       /**
7073        * Whether the package manager should send package verification broadcasts for verifiers to
7074        * review apps prior to installation.
7075        * 1 = request apps to be verified prior to installation, if a verifier exists.
7076        * 0 = do not verify apps before installation
7077        * @hide
7078        */
7079       public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";
7080
7081       /** Timeout for package verification.
7082        * @hide */
7083       public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";
7084
7085       /** Default response code for package verification.
7086        * @hide */
7087       public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";
7088
7089       /**
7090        * Show package verification setting in the Settings app.
7091        * 1 = show (default)
7092        * 0 = hide
7093        * @hide
7094        */
7095       public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";
7096
7097       /**
7098        * Run package verification on apps installed through ADB/ADT/USB
7099        * 1 = perform package verification on ADB installs (default)
7100        * 0 = bypass package verification on ADB installs
7101        * @hide
7102        */
7103       public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";
7104
7105       /**
7106        * Time since last fstrim (milliseconds) after which we force one to happen
7107        * during device startup.  If unset, the default is 3 days.
7108        * @hide
7109        */
7110       public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";
7111
7112       /**
7113        * The interval in milliseconds at which to check packet counts on the
7114        * mobile data interface when screen is on, to detect possible data
7115        * connection problems.
7116        * @hide
7117        */
7118       public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
7119               "pdp_watchdog_poll_interval_ms";
7120
7121       /**
7122        * The interval in milliseconds at which to check packet counts on the
7123        * mobile data interface when screen is off, to detect possible data
7124        * connection problems.
7125        * @hide
7126        */
7127       public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
7128               "pdp_watchdog_long_poll_interval_ms";
7129
7130       /**
7131        * The interval in milliseconds at which to check packet counts on the
7132        * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
7133        * outgoing packets has been reached without incoming packets.
7134        * @hide
7135        */
7136       public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
7137               "pdp_watchdog_error_poll_interval_ms";
7138
7139       /**
7140        * The number of outgoing packets sent without seeing an incoming packet
7141        * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
7142        * device is logged to the event log
7143        * @hide
7144        */
7145       public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
7146               "pdp_watchdog_trigger_packet_count";
7147
7148       /**
7149        * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
7150        * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
7151        * attempting data connection recovery.
7152        * @hide
7153        */
7154       public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
7155               "pdp_watchdog_error_poll_count";
7156
7157       /**
7158        * The number of failed PDP reset attempts before moving to something more
7159        * drastic: re-registering to the network.
7160        * @hide
7161        */
7162       public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
7163               "pdp_watchdog_max_pdp_reset_fail_count";
7164
7165       /**
7166        * A positive value indicates how often the SamplingProfiler
7167        * should take snapshots. Zero value means SamplingProfiler
7168        * is disabled.
7169        *
7170        * @hide
7171        */
7172       public static final String SAMPLING_PROFILER_MS = "sampling_profiler_ms";
7173
7174       /**
7175        * URL to open browser on to allow user to manage a prepay account
7176        * @hide
7177        */
7178       public static final String SETUP_PREPAID_DATA_SERVICE_URL =
7179               "setup_prepaid_data_service_url";
7180
7181       /**
7182        * URL to attempt a GET on to see if this is a prepay device
7183        * @hide
7184        */
7185       public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
7186               "setup_prepaid_detection_target_url";
7187
7188       /**
7189        * Host to check for a redirect to after an attempt to GET
7190        * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
7191        * this is a prepaid device with zero balance.)
7192        * @hide
7193        */
7194       public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
7195               "setup_prepaid_detection_redir_host";
7196
7197       /**
7198        * The interval in milliseconds at which to check the number of SMS sent out without asking
7199        * for use permit, to limit the un-authorized SMS usage.
7200        *
7201        * @hide
7202        */
7203       public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
7204               "sms_outgoing_check_interval_ms";
7205
7206       /**
7207        * The number of outgoing SMS sent without asking for user permit (of {@link
7208        * #SMS_OUTGOING_CHECK_INTERVAL_MS}
7209        *
7210        * @hide
7211        */
7212       public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
7213               "sms_outgoing_check_max_count";
7214
7215       /**
7216        * Used to disable SMS short code confirmation - defaults to true.
7217        * True indcates we will do the check, etc.  Set to false to disable.
7218        * @see com.android.internal.telephony.SmsUsageMonitor
7219        * @hide
7220        */
7221       public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";
7222
7223        /**
7224         * Used to select which country we use to determine premium sms codes.
7225         * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
7226         * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
7227         * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
7228         * @hide
7229         */
7230        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";
7231
7232       /**
7233        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
7234        * @hide
7235        */
7236       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";
7237
7238       /**
7239        * Used to disable Tethering on a device - defaults to true
7240        * @hide
7241        */
7242       public static final String TETHER_SUPPORTED = "tether_supported";
7243
7244       /**
7245        * Used to require DUN APN on the device or not - defaults to a build config value
7246        * which defaults to false
7247        * @hide
7248        */
7249       public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
7250
7251       /**
7252        * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
7253        * corresponding build config values are set it will override the APN DB
7254        * values.
7255        * Consists of a comma seperated list of strings:
7256        * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
7257        * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
7258        * @hide
7259        */
7260       public static final String TETHER_DUN_APN = "tether_dun_apn";
7261
7262       /**
7263        * List of carrier apps which are whitelisted to prompt the user for install when
7264        * a sim card with matching uicc carrier privilege rules is inserted.
7265        *
7266        * The value is "package1;package2;..."
7267        * @hide
7268        */
7269       public static final String CARRIER_APP_WHITELIST = "carrier_app_whitelist";
7270
7271       /**
7272        * USB Mass Storage Enabled
7273        */
7274       public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
7275
7276       /**
7277        * If this setting is set (to anything), then all references
7278        * to Gmail on the device must change to Google Mail.
7279        */
7280       public static final String USE_GOOGLE_MAIL = "use_google_mail";
7281
7282        /**
7283         * Webview Data reduction proxy key.
7284         * @hide
7285         */
7286        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
7287                "webview_data_reduction_proxy_key";
7288
7289        /**
7290         * Whether or not the WebView fallback mechanism should be enabled.
7291         * 0=disabled, 1=enabled.
7292         * @hide
7293         */
7294        public static final String WEBVIEW_FALLBACK_LOGIC_ENABLED =
7295                "webview_fallback_logic_enabled";
7296
7297        /**
7298         * Name of the package used as WebView provider (if unset the provider is instead determined
7299         * by the system).
7300         * @hide
7301         */
7302        public static final String WEBVIEW_PROVIDER = "webview_provider";
7303
7304        /**
7305         * Developer setting to enable WebView multiprocess rendering.
7306         * @hide
7307         */
7308        @SystemApi
7309        public static final String WEBVIEW_MULTIPROCESS = "webview_multiprocess";
7310
7311       /**
7312        * Whether Wifi display is enabled/disabled
7313        * 0=disabled. 1=enabled.
7314        * @hide
7315        */
7316       public static final String WIFI_DISPLAY_ON = "wifi_display_on";
7317
7318       /**
7319        * Whether Wifi display certification mode is enabled/disabled
7320        * 0=disabled. 1=enabled.
7321        * @hide
7322        */
7323       public static final String WIFI_DISPLAY_CERTIFICATION_ON =
7324               "wifi_display_certification_on";
7325
7326       /**
7327        * WPS Configuration method used by Wifi display, this setting only
7328        * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
7329        *
7330        * Possible values are:
7331        *
7332        * WpsInfo.INVALID: use default WPS method chosen by framework
7333        * WpsInfo.PBC    : use Push button
7334        * WpsInfo.KEYPAD : use Keypad
7335        * WpsInfo.DISPLAY: use Display
7336        * @hide
7337        */
7338       public static final String WIFI_DISPLAY_WPS_CONFIG =
7339           "wifi_display_wps_config";
7340
7341       /**
7342        * Whether to notify the user of open networks.
7343        * <p>
7344        * If not connected and the scan results have an open network, we will
7345        * put this notification up. If we attempt to connect to a network or
7346        * the open network(s) disappear, we remove the notification. When we
7347        * show the notification, we will not show it again for
7348        * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
7349        */
7350       public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
7351               "wifi_networks_available_notification_on";
7352       /**
7353        * {@hide}
7354        */
7355       public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
7356               "wimax_networks_available_notification_on";
7357
7358       /**
7359        * Delay (in seconds) before repeating the Wi-Fi networks available notification.
7360        * Connecting to a network will reset the timer.
7361        */
7362       public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
7363               "wifi_networks_available_repeat_delay";
7364
7365       /**
7366        * 802.11 country code in ISO 3166 format
7367        * @hide
7368        */
7369       public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
7370
7371       /**
7372        * The interval in milliseconds to issue wake up scans when wifi needs
7373        * to connect. This is necessary to connect to an access point when
7374        * device is on the move and the screen is off.
7375        * @hide
7376        */
7377       public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
7378               "wifi_framework_scan_interval_ms";
7379
7380       /**
7381        * The interval in milliseconds after which Wi-Fi is considered idle.
7382        * When idle, it is possible for the device to be switched from Wi-Fi to
7383        * the mobile data network.
7384        * @hide
7385        */
7386       public static final String WIFI_IDLE_MS = "wifi_idle_ms";
7387
7388       /**
7389        * When the number of open networks exceeds this number, the
7390        * least-recently-used excess networks will be removed.
7391        */
7392       public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
7393
7394       /**
7395        * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
7396        */
7397       public static final String WIFI_ON = "wifi_on";
7398
7399       /**
7400        * Setting to allow scans to be enabled even wifi is turned off for connectivity.
7401        * @hide
7402        */
7403       public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
7404                "wifi_scan_always_enabled";
7405
7406       /**
7407        * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
7408        * connectivity.
7409        * @hide
7410        */
7411       public static final String BLE_SCAN_ALWAYS_AVAILABLE =
7412               "ble_scan_always_enabled";
7413
7414       /**
7415        * Used to save the Wifi_ON state prior to tethering.
7416        * This state will be checked to restore Wifi after
7417        * the user turns off tethering.
7418        *
7419        * @hide
7420        */
7421       public static final String WIFI_SAVED_STATE = "wifi_saved_state";
7422
7423       /**
7424        * The interval in milliseconds to scan as used by the wifi supplicant
7425        * @hide
7426        */
7427       public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
7428               "wifi_supplicant_scan_interval_ms";
7429
7430        /**
7431         * whether frameworks handles wifi auto-join
7432         * @hide
7433         */
7434       public static final String WIFI_ENHANCED_AUTO_JOIN =
7435                "wifi_enhanced_auto_join";
7436
7437        /**
7438         * whether settings show RSSI
7439         * @hide
7440         */
7441        public static final String WIFI_NETWORK_SHOW_RSSI =
7442                "wifi_network_show_rssi";
7443
7444        /**
7445        * The interval in milliseconds to scan at supplicant when p2p is connected
7446        * @hide
7447        */
7448       public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
7449               "wifi_scan_interval_p2p_connected_ms";
7450
7451       /**
7452        * Whether the Wi-Fi watchdog is enabled.
7453        */
7454       public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
7455
7456       /**
7457        * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
7458        * the setting needs to be set to 0 to disable it.
7459        * @hide
7460        */
7461       public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
7462               "wifi_watchdog_poor_network_test_enabled";
7463
7464       /**
7465        * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
7466        * needs to be set to 0 to disable it.
7467        * @hide
7468        */
7469       public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
7470               "wifi_suspend_optimizations_enabled";
7471
7472       /**
7473        * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
7474        * will enable it. In the future, additional values may be supported.
7475        * @hide
7476        */
7477       public static final String WIFI_VERBOSE_LOGGING_ENABLED =
7478               "wifi_verbose_logging_enabled";
7479
7480       /**
7481        * The maximum number of times we will retry a connection to an access
7482        * point for which we have failed in acquiring an IP address from DHCP.
7483        * A value of N means that we will make N+1 connection attempts in all.
7484        */
7485       public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
7486
7487       /**
7488        * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
7489        * data connectivity to be established after a disconnect from Wi-Fi.
7490        */
7491       public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
7492           "wifi_mobile_data_transition_wakelock_timeout_ms";
7493
7494       /**
7495        * This setting controls whether WiFi configurations created by a Device Owner app
7496        * should be locked down (that is, be editable or removable only by the Device Owner App,
7497        * not even by Settings app).
7498        * This setting takes integer values. Non-zero values mean DO created configurations
7499        * are locked down. Value of zero means they are not. Default value in the absence of
7500        * actual value to this setting is 0.
7501        */
7502       public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
7503               "wifi_device_owner_configs_lockdown";
7504
7505       /**
7506        * The operational wifi frequency band
7507        * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
7508        * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
7509        * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
7510        *
7511        * @hide
7512        */
7513       public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
7514
7515       /**
7516        * The Wi-Fi peer-to-peer device name
7517        * @hide
7518        */
7519       public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";
7520
7521       /**
7522        * The min time between wifi disable and wifi enable
7523        * @hide
7524        */
7525       public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";
7526
7527       /**
7528        * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
7529        * from an ephemeral network if there is no BSSID for that network with a non-null score that
7530        * has been seen in this time period.
7531        *
7532        * If this is less than or equal to zero, we use a more conservative behavior and only check
7533        * for a non-null score from the currently connected or target BSSID.
7534        * @hide
7535        */
7536       public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
7537               "wifi_ephemeral_out_of_range_timeout_ms";
7538
7539       /**
7540        * The number of milliseconds to delay when checking for data stalls during
7541        * non-aggressive detection. (screen is turned off.)
7542        * @hide
7543        */
7544       public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
7545               "data_stall_alarm_non_aggressive_delay_in_ms";
7546
7547       /**
7548        * The number of milliseconds to delay when checking for data stalls during
7549        * aggressive detection. (screen on or suspected data stall)
7550        * @hide
7551        */
7552       public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
7553               "data_stall_alarm_aggressive_delay_in_ms";
7554
7555       /**
7556        * The number of milliseconds to allow the provisioning apn to remain active
7557        * @hide
7558        */
7559       public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
7560               "provisioning_apn_alarm_delay_in_ms";
7561
7562       /**
7563        * The interval in milliseconds at which to check gprs registration
7564        * after the first registration mismatch of gprs and voice service,
7565        * to detect possible data network registration problems.
7566        *
7567        * @hide
7568        */
7569       public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
7570               "gprs_register_check_period_ms";
7571
7572       /**
7573        * Nonzero causes Log.wtf() to crash.
7574        * @hide
7575        */
7576       public static final String WTF_IS_FATAL = "wtf_is_fatal";
7577
7578       /**
7579        * Ringer mode. This is used internally, changing this value will not
7580        * change the ringer mode. See AudioManager.
7581        */
7582       public static final String MODE_RINGER = "mode_ringer";
7583
7584       /**
7585        * Overlay display devices setting.
7586        * The associated value is a specially formatted string that describes the
7587        * size and density of simulated secondary display devices.
7588        * <p>
7589        * Format: {width}x{height}/{dpi};...
7590        * </p><p>
7591        * Example:
7592        * <ul>
7593        * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
7594        * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
7595        * at 1080p and the second at 720p.</li>
7596        * <li>If the value is empty, then no overlay display devices are created.</li>
7597        * </ul></p>
7598        *
7599        * @hide
7600        */
7601       public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";
7602
7603        /**
7604         * Threshold values for the duration and level of a discharge cycle,
7605         * under which we log discharge cycle info.
7606         *
7607         * @hide
7608         */
7609        public static final String
7610                BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";
7611
7612        /** @hide */
7613        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
7614
7615        /**
7616         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
7617         * intents on application crashes and ANRs. If this is disabled, the
7618         * crash/ANR dialog will never display the "Report" button.
7619         * <p>
7620         * Type: int (0 = disallow, 1 = allow)
7621         *
7622         * @hide
7623         */
7624        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
7625
7626        /**
7627         * Maximum age of entries kept by {@link DropBoxManager}.
7628         *
7629         * @hide
7630         */
7631        public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";
7632
7633        /**
7634         * Maximum number of entry files which {@link DropBoxManager} will keep
7635         * around.
7636         *
7637         * @hide
7638         */
7639        public static final String DROPBOX_MAX_FILES = "dropbox_max_files";
7640
7641        /**
7642         * Maximum amount of disk space used by {@link DropBoxManager} no matter
7643         * what.
7644         *
7645         * @hide
7646         */
7647        public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";
7648
7649        /**
7650         * Percent of free disk (excluding reserve) which {@link DropBoxManager}
7651         * will use.
7652         *
7653         * @hide
7654         */
7655        public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";
7656
7657        /**
7658         * Percent of total disk which {@link DropBoxManager} will never dip
7659         * into.
7660         *
7661         * @hide
7662         */
7663        public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";
7664
7665        /**
7666         * Prefix for per-tag dropbox disable/enable settings.
7667         *
7668         * @hide
7669         */
7670        public static final String DROPBOX_TAG_PREFIX = "dropbox:";
7671
7672        /**
7673         * Lines of logcat to include with system crash/ANR/etc. reports, as a
7674         * prefix of the dropbox tag of the report type. For example,
7675         * "logcat_for_system_server_anr" controls the lines of logcat captured
7676         * with system server ANR reports. 0 to disable.
7677         *
7678         * @hide
7679         */
7680        public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";
7681
7682        /**
7683         * The interval in minutes after which the amount of free storage left
7684         * on the device is logged to the event log
7685         *
7686         * @hide
7687         */
7688        public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";
7689
7690        /**
7691         * Threshold for the amount of change in disk free space required to
7692         * report the amount of free space. Used to prevent spamming the logs
7693         * when the disk free space isn't changing frequently.
7694         *
7695         * @hide
7696         */
7697        public static final String
7698                DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";
7699
7700        /**
7701         * Minimum percentage of free storage on the device that is used to
7702         * determine if the device is running low on storage. The default is 10.
7703         * <p>
7704         * Say this value is set to 10, the device is considered running low on
7705         * storage if 90% or more of the device storage is filled up.
7706         *
7707         * @hide
7708         */
7709        public static final String
7710                SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";
7711
7712        /**
7713         * Maximum byte size of the low storage threshold. This is to ensure
7714         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
7715         * overly large threshold for large storage devices. Currently this must
7716         * be less than 2GB. This default is 500MB.
7717         *
7718         * @hide
7719         */
7720        public static final String
7721                SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";
7722
7723        /**
7724         * Minimum bytes of free storage on the device before the data partition
7725         * is considered full. By default, 1 MB is reserved to avoid system-wide
7726         * SQLite disk full exceptions.
7727         *
7728         * @hide
7729         */
7730        public static final String
7731                SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";
7732
7733        /**
7734         * The maximum reconnect delay for short network outages or when the
7735         * network is suspended due to phone use.
7736         *
7737         * @hide
7738         */
7739        public static final String
7740                SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";
7741
7742        /**
7743         * The number of milliseconds to delay before sending out
7744         * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
7745         *
7746         * @hide
7747         */
7748        public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";
7749
7750
7751        /**
7752         * Network sampling interval, in seconds. We'll generate link information
7753         * about bytes/packets sent and error rates based on data sampled in this interval
7754         *
7755         * @hide
7756         */
7757
7758        public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
7759                "connectivity_sampling_interval_in_seconds";
7760
7761        /**
7762         * The series of successively longer delays used in retrying to download PAC file.
7763         * Last delay is used between successful PAC downloads.
7764         *
7765         * @hide
7766         */
7767        public static final String PAC_CHANGE_DELAY = "pac_change_delay";
7768
7769        /**
7770         * Setting to turn off captive portal detection. Feature is enabled by
7771         * default and the setting needs to be set to 0 to disable it.
7772         *
7773         * @hide
7774         */
7775        public static final String
7776                CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";
7777
7778        /**
7779         * The server used for captive portal detection upon a new conection. A
7780         * 204 response code from the server is used for validation.
7781         *
7782         * @hide
7783         */
7784        public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";
7785
7786        /**
7787         * Whether to use HTTPS for network validation. This is enabled by default and the setting
7788         * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
7789         * don't actually use HTTPS, but it's consistent with the other settings.
7790         *
7791         * @hide
7792         */
7793        public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";
7794
7795        /**
7796         * Whether network service discovery is enabled.
7797         *
7798         * @hide
7799         */
7800        public static final String NSD_ON = "nsd_on";
7801
7802        /**
7803         * Let user pick default install location.
7804         *
7805         * @hide
7806         */
7807        public static final String SET_INSTALL_LOCATION = "set_install_location";
7808
7809        /**
7810         * Default install location value.
7811         * 0 = auto, let system decide
7812         * 1 = internal
7813         * 2 = sdcard
7814         * @hide
7815         */
7816        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
7817
7818        /**
7819         * ms during which to consume extra events related to Inet connection
7820         * condition after a transtion to fully-connected
7821         *
7822         * @hide
7823         */
7824        public static final String
7825                INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";
7826
7827        /**
7828         * ms during which to consume extra events related to Inet connection
7829         * condtion after a transtion to partly-connected
7830         *
7831         * @hide
7832         */
7833        public static final String
7834                INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";
7835
7836        /** {@hide} */
7837        public static final String
7838                READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";
7839
7840        /**
7841         * Host name and port for global http proxy. Uses ':' seperator for
7842         * between host and port.
7843         */
7844        public static final String HTTP_PROXY = "http_proxy";
7845
7846        /**
7847         * Host name for global http proxy. Set via ConnectivityManager.
7848         *
7849         * @hide
7850         */
7851        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
7852
7853        /**
7854         * Integer host port for global http proxy. Set via ConnectivityManager.
7855         *
7856         * @hide
7857         */
7858        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
7859
7860        /**
7861         * Exclusion list for global proxy. This string contains a list of
7862         * comma-separated domains where the global proxy does not apply.
7863         * Domains should be listed in a comma- separated list. Example of
7864         * acceptable formats: ".domain1.com,my.domain2.com" Use
7865         * ConnectivityManager to set/get.
7866         *
7867         * @hide
7868         */
7869        public static final String
7870                GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";
7871
7872        /**
7873         * The location PAC File for the proxy.
7874         * @hide
7875         */
7876        public static final String
7877                GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";
7878
7879        /**
7880         * Enables the UI setting to allow the user to specify the global HTTP
7881         * proxy and associated exclusion list.
7882         *
7883         * @hide
7884         */
7885        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
7886
7887        /**
7888         * Setting for default DNS in case nobody suggests one
7889         *
7890         * @hide
7891         */
7892        public static final String DEFAULT_DNS_SERVER = "default_dns_server";
7893
7894        /** {@hide} */
7895        public static final String
7896                BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
7897        /** {@hide} */
7898        public static final String
7899                BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
7900        /** {@hide} */
7901        public static final String
7902                BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX = "bluetooth_a2dp_src_priority_";
7903        /** {@hide} */
7904        public static final String
7905                BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
7906        /** {@hide} */
7907        public static final String
7908                BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
7909        /** {@hide} */
7910        public static final String
7911                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
7912        /** {@hide} */
7913        public static final String
7914                BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
7915
7916        /**
7917         * Device Idle (Doze) specific settings.
7918         * This is encoded as a key=value list, separated by commas. Ex:
7919         *
7920         * "inactive_timeout=60000,sensing_timeout=400000"
7921         *
7922         * The following keys are supported:
7923         *
7924         * <pre>
7925         * inactive_to                      (long)
7926         * sensing_to                       (long)
7927         * motion_inactive_to               (long)
7928         * idle_after_inactive_to           (long)
7929         * idle_pending_to                  (long)
7930         * max_idle_pending_to              (long)
7931         * idle_pending_factor              (float)
7932         * idle_to                          (long)
7933         * max_idle_to                      (long)
7934         * idle_factor                      (float)
7935         * min_time_to_alarm                (long)
7936         * max_temp_app_whitelist_duration  (long)
7937         * </pre>
7938         *
7939         * <p>
7940         * Type: string
7941         * @hide
7942         * @see com.android.server.DeviceIdleController.Constants
7943         */
7944        public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";
7945
7946        /**
7947         * Device Idle (Doze) specific settings for watches. See {@code #DEVICE_IDLE_CONSTANTS}
7948         *
7949         * <p>
7950         * Type: string
7951         * @hide
7952         * @see com.android.server.DeviceIdleController.Constants
7953         */
7954        public static final String DEVICE_IDLE_CONSTANTS_WATCH = "device_idle_constants_watch";
7955
7956        /**
7957         * App standby (app idle) specific settings.
7958         * This is encoded as a key=value list, separated by commas. Ex:
7959         *
7960         * "idle_duration=5000,parole_interval=4500"
7961         *
7962         * The following keys are supported:
7963         *
7964         * <pre>
7965         * idle_duration2       (long)
7966         * wallclock_threshold  (long)
7967         * parole_interval      (long)
7968         * parole_duration      (long)
7969         *
7970         * idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
7971         * </pre>
7972         *
7973         * <p>
7974         * Type: string
7975         * @hide
7976         * @see com.android.server.usage.UsageStatsService.SettingsObserver
7977         */
7978        public static final String APP_IDLE_CONSTANTS = "app_idle_constants";
7979
7980        /**
7981         * Alarm manager specific settings.
7982         * This is encoded as a key=value list, separated by commas. Ex:
7983         *
7984         * "min_futurity=5000,allow_while_idle_short_time=4500"
7985         *
7986         * The following keys are supported:
7987         *
7988         * <pre>
7989         * min_futurity                         (long)
7990         * min_interval                         (long)
7991         * allow_while_idle_short_time          (long)
7992         * allow_while_idle_long_time           (long)
7993         * allow_while_idle_whitelist_duration  (long)
7994         * </pre>
7995         *
7996         * <p>
7997         * Type: string
7998         * @hide
7999         * @see com.android.server.AlarmManagerService.Constants
8000         */
8001        public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";
8002
8003        /**
8004         * ShortcutManager specific settings.
8005         * This is encoded as a key=value list, separated by commas. Ex:
8006         *
8007         * "reset_interval_sec=86400,max_updates_per_interval=1"
8008         *
8009         * The following keys are supported:
8010         *
8011         * <pre>
8012         * reset_interval_sec              (long)
8013         * max_updates_per_interval        (int)
8014         * max_icon_dimension_dp           (int, DP)
8015         * max_icon_dimension_dp_lowram    (int, DP)
8016         * max_shortcuts                   (int)
8017         * icon_quality                    (int, 0-100)
8018         * icon_format                     (String)
8019         * </pre>
8020         *
8021         * <p>
8022         * Type: string
8023         * @hide
8024         * @see com.android.server.pm.ShortcutService.ConfigConstants
8025         */
8026        public static final String SHORTCUT_MANAGER_CONSTANTS = "shortcut_manager_constants";
8027
8028        /**
8029         * Get the key that retrieves a bluetooth headset's priority.
8030         * @hide
8031         */
8032        public static final String getBluetoothHeadsetPriorityKey(String address) {
8033            return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8034        }
8035
8036        /**
8037         * Get the key that retrieves a bluetooth a2dp sink's priority.
8038         * @hide
8039         */
8040        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
8041            return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8042        }
8043
8044        /**
8045         * Get the key that retrieves a bluetooth a2dp src's priority.
8046         * @hide
8047         */
8048        public static final String getBluetoothA2dpSrcPriorityKey(String address) {
8049            return BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8050        }
8051
8052        /**
8053         * Get the key that retrieves a bluetooth Input Device's priority.
8054         * @hide
8055         */
8056        public static final String getBluetoothInputDevicePriorityKey(String address) {
8057            return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8058        }
8059
8060        /**
8061         * Get the key that retrieves a bluetooth map priority.
8062         * @hide
8063         */
8064        public static final String getBluetoothMapPriorityKey(String address) {
8065            return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8066        }
8067
8068        /**
8069         * Get the key that retrieves a bluetooth pbap client priority.
8070         * @hide
8071         */
8072        public static final String getBluetoothPbapClientPriorityKey(String address) {
8073            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8074        }
8075
8076        /**
8077         * Get the key that retrieves a bluetooth map priority.
8078         * @hide
8079         */
8080        public static final String getBluetoothSapPriorityKey(String address) {
8081            return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8082        }
8083
8084        /**
8085         * Scaling factor for normal window animations. Setting to 0 will
8086         * disable window animations.
8087         */
8088        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
8089
8090        /**
8091         * Scaling factor for activity transition animations. Setting to 0 will
8092         * disable window animations.
8093         */
8094        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
8095
8096        /**
8097         * Scaling factor for Animator-based animations. This affects both the
8098         * start delay and duration of all such animations. Setting to 0 will
8099         * cause animations to end immediately. The default value is 1.
8100         */
8101        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
8102
8103        /**
8104         * Scaling factor for normal window animations. Setting to 0 will
8105         * disable window animations.
8106         *
8107         * @hide
8108         */
8109        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
8110
8111        /**
8112         * If 0, the compatibility mode is off for all applications.
8113         * If 1, older applications run under compatibility mode.
8114         * TODO: remove this settings before code freeze (bug/1907571)
8115         * @hide
8116         */
8117        public static final String COMPATIBILITY_MODE = "compatibility_mode";
8118
8119        /**
8120         * CDMA only settings
8121         * Emergency Tone  0 = Off
8122         *                 1 = Alert
8123         *                 2 = Vibrate
8124         * @hide
8125         */
8126        public static final String EMERGENCY_TONE = "emergency_tone";
8127
8128        /**
8129         * CDMA only settings
8130         * Whether the auto retry is enabled. The value is
8131         * boolean (1 or 0).
8132         * @hide
8133         */
8134        public static final String CALL_AUTO_RETRY = "call_auto_retry";
8135
8136        /**
8137         * See RIL_PreferredNetworkType in ril.h
8138         * @hide
8139         */
8140        public static final String PREFERRED_NETWORK_MODE =
8141                "preferred_network_mode";
8142
8143        /**
8144         * Name of an application package to be debugged.
8145         */
8146        public static final String DEBUG_APP = "debug_app";
8147
8148        /**
8149         * If 1, when launching DEBUG_APP it will wait for the debugger before
8150         * starting user code.  If 0, it will run normally.
8151         */
8152        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
8153
8154        /**
8155         * Control whether the process CPU usage meter should be shown.
8156         */
8157        public static final String SHOW_PROCESSES = "show_processes";
8158
8159        /**
8160         * If 1 low power mode is enabled.
8161         * @hide
8162         */
8163        public static final String LOW_POWER_MODE = "low_power";
8164
8165        /**
8166         * Battery level [1-99] at which low power mode automatically turns on.
8167         * If 0, it will not automatically turn on.
8168         * @hide
8169         */
8170        public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";
8171
8172         /**
8173         * If not 0, the activity manager will aggressively finish activities and
8174         * processes as soon as they are no longer needed.  If 0, the normal
8175         * extended lifetime is used.
8176         */
8177        public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
8178
8179        /**
8180         * @hide
8181         * If not 0, the activity manager will implement a looser version of background
8182         * check that is more compatible with existing apps.
8183         */
8184        public static final String LENIENT_BACKGROUND_CHECK = "lenient_background_check";
8185
8186        /**
8187         * Use Dock audio output for media:
8188         *      0 = disabled
8189         *      1 = enabled
8190         * @hide
8191         */
8192        public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
8193
8194        /**
8195         * The surround sound formats AC3, DTS or IEC61937 are
8196         * available for use if they are detected.
8197         * This is the default mode.
8198         *
8199         * Note that AUTO is equivalent to ALWAYS for Android TVs and other
8200         * devices that have an S/PDIF output. This is because S/PDIF
8201         * is unidirectional and the TV cannot know if a decoder is
8202         * connected. So it assumes they are always available.
8203         * @hide
8204         */
8205         public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;
8206
8207        /**
8208         * AC3, DTS or IEC61937 are NEVER available, even if they
8209         * are detected by the hardware. Those formats will not be
8210         * reported.
8211         *
8212         * An example use case would be an AVR reports that it is capable of
8213         * surround sound decoding but is broken. If NEVER is chosen
8214         * then apps must use PCM output instead of encoded output.
8215         * @hide
8216         */
8217         public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;
8218
8219        /**
8220         * AC3, DTS or IEC61937 are ALWAYS available, even if they
8221         * are not detected by the hardware. Those formats will be
8222         * reported as part of the HDMI output capability. Applications
8223         * are then free to use either PCM or encoded output.
8224         *
8225         * An example use case would be a when TV was connected over
8226         * TOS-link to an AVR. But the TV could not see it because TOS-link
8227         * is unidirectional.
8228         * @hide
8229         */
8230         public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;
8231
8232        /**
8233         * Set to ENCODED_SURROUND_OUTPUT_AUTO,
8234         * ENCODED_SURROUND_OUTPUT_NEVER or
8235         * ENCODED_SURROUND_OUTPUT_ALWAYS
8236         * @hide
8237         */
8238        public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";
8239
8240        /**
8241         * Persisted safe headphone volume management state by AudioService
8242         * @hide
8243         */
8244        public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";
8245
8246        /**
8247         * URL for tzinfo (time zone) updates
8248         * @hide
8249         */
8250        public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";
8251
8252        /**
8253         * URL for tzinfo (time zone) update metadata
8254         * @hide
8255         */
8256        public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";
8257
8258        /**
8259         * URL for selinux (mandatory access control) updates
8260         * @hide
8261         */
8262        public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";
8263
8264        /**
8265         * URL for selinux (mandatory access control) update metadata
8266         * @hide
8267         */
8268        public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";
8269
8270        /**
8271         * URL for sms short code updates
8272         * @hide
8273         */
8274        public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
8275                "sms_short_codes_content_url";
8276
8277        /**
8278         * URL for sms short code update metadata
8279         * @hide
8280         */
8281        public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
8282                "sms_short_codes_metadata_url";
8283
8284        /**
8285         * URL for apn_db updates
8286         * @hide
8287         */
8288        public static final String APN_DB_UPDATE_CONTENT_URL = "apn_db_content_url";
8289
8290        /**
8291         * URL for apn_db update metadata
8292         * @hide
8293         */
8294        public static final String APN_DB_UPDATE_METADATA_URL = "apn_db_metadata_url";
8295
8296        /**
8297         * URL for cert pinlist updates
8298         * @hide
8299         */
8300        public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";
8301
8302        /**
8303         * URL for cert pinlist updates
8304         * @hide
8305         */
8306        public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";
8307
8308        /**
8309         * URL for intent firewall updates
8310         * @hide
8311         */
8312        public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
8313                "intent_firewall_content_url";
8314
8315        /**
8316         * URL for intent firewall update metadata
8317         * @hide
8318         */
8319        public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
8320                "intent_firewall_metadata_url";
8321
8322        /**
8323         * SELinux enforcement status. If 0, permissive; if 1, enforcing.
8324         * @hide
8325         */
8326        public static final String SELINUX_STATUS = "selinux_status";
8327
8328        /**
8329         * Developer setting to force RTL layout.
8330         * @hide
8331         */
8332        public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
8333
8334        /**
8335         * Milliseconds after screen-off after which low battery sounds will be silenced.
8336         *
8337         * If zero, battery sounds will always play.
8338         * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
8339         *
8340         * @hide
8341         */
8342        public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
8343
8344        /**
8345         * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
8346         * the caller is done with this, they should call {@link ContentResolver#delete} to
8347         * clean up any value that they may have written.
8348         *
8349         * @hide
8350         */
8351        public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";
8352
8353        /**
8354         * Defines global runtime overrides to window policy.
8355         *
8356         * See {@link com.android.server.policy.PolicyControl} for value format.
8357         *
8358         * @hide
8359         */
8360        public static final String POLICY_CONTROL = "policy_control";
8361
8362        /**
8363         * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
8364         * or ZEN_MODE_NO_INTERRUPTIONS.
8365         *
8366         * @hide
8367         */
8368        public static final String ZEN_MODE = "zen_mode";
8369
8370        /** @hide */ public static final int ZEN_MODE_OFF = 0;
8371        /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
8372        /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
8373        /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
8374
8375        /** @hide */ public static String zenModeToString(int mode) {
8376            if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
8377            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
8378            if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
8379            return "ZEN_MODE_OFF";
8380        }
8381
8382        /** @hide */ public static boolean isValidZenMode(int value) {
8383            switch (value) {
8384                case Global.ZEN_MODE_OFF:
8385                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
8386                case Global.ZEN_MODE_ALARMS:
8387                case Global.ZEN_MODE_NO_INTERRUPTIONS:
8388                    return true;
8389                default:
8390                    return false;
8391            }
8392        }
8393
8394        /**
8395         * Value of the ringer before entering zen mode.
8396         *
8397         * @hide
8398         */
8399        public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";
8400
8401        /**
8402         * Opaque value, changes when persisted zen mode configuration changes.
8403         *
8404         * @hide
8405         */
8406        public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";
8407
8408        /**
8409         * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
8410         *
8411         * @hide
8412         */
8413        public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
8414                "heads_up_notifications_enabled";
8415
8416        /** @hide */ public static final int HEADS_UP_OFF = 0;
8417        /** @hide */ public static final int HEADS_UP_ON = 1;
8418
8419        /**
8420         * The name of the device
8421         *
8422         * @hide
8423         */
8424        public static final String DEVICE_NAME = "device_name";
8425
8426        /**
8427         * Whether the NetworkScoringService has been first initialized.
8428         * <p>
8429         * Type: int (0 for false, 1 for true)
8430         * @hide
8431         */
8432        public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";
8433
8434        /**
8435         * Whether the user wants to be prompted for password to decrypt the device on boot.
8436         * This only matters if the storage is encrypted.
8437         * <p>
8438         * Type: int (0 for false, 1 for true)
8439         * @hide
8440         */
8441        public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
8442
8443        /**
8444         * Whether the Volte is enabled
8445         * <p>
8446         * Type: int (0 for false, 1 for true)
8447         * @hide
8448         */
8449        public static final String ENHANCED_4G_MODE_ENABLED = "volte_vt_enabled";
8450
8451        /**
8452         * Whether VT (Video Telephony over IMS) is enabled
8453         * <p>
8454         * Type: int (0 for false, 1 for true)
8455         *
8456         * @hide
8457         */
8458        public static final String VT_IMS_ENABLED = "vt_ims_enabled";
8459
8460        /**
8461         * Whether WFC is enabled
8462         * <p>
8463         * Type: int (0 for false, 1 for true)
8464         *
8465         * @hide
8466         */
8467        public static final String WFC_IMS_ENABLED = "wfc_ims_enabled";
8468
8469        /**
8470         * WFC Mode.
8471         * <p>
8472         * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
8473         *
8474         * @hide
8475         */
8476        public static final String WFC_IMS_MODE = "wfc_ims_mode";
8477
8478        /**
8479         * Whether WFC roaming is enabled
8480         * <p>
8481         * Type: int (0 for false, 1 for true)
8482         *
8483         * @hide
8484         */
8485        public static final String WFC_IMS_ROAMING_ENABLED = "wfc_ims_roaming_enabled";
8486
8487        /**
8488         * Whether user can enable/disable LTE as a preferred network. A carrier might control
8489         * this via gservices, OMA-DM, carrier app, etc.
8490         * <p>
8491         * Type: int (0 for false, 1 for true)
8492         * @hide
8493         */
8494        public static final String LTE_SERVICE_FORCED = "lte_service_forced";
8495
8496        /**
8497         * Ephemeral app cookie max size in bytes.
8498         * <p>
8499         * Type: int
8500         * @hide
8501         */
8502        public static final String EPHEMERAL_COOKIE_MAX_SIZE_BYTES =
8503                "ephemeral_cookie_max_size_bytes";
8504
8505        /**
8506         * The duration for caching uninstalled ephemeral apps.
8507         * <p>
8508         * Type: long
8509         * @hide
8510         */
8511        public static final String UNINSTALLED_EPHEMERAL_APP_CACHE_DURATION_MILLIS =
8512                "uninstalled_ephemeral_app_cache_duration_millis";
8513
8514        /**
8515         * Allows switching users when system user is locked.
8516         * <p>
8517         * Type: int
8518         * @hide
8519         */
8520        public static final String ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED =
8521                "allow_user_switching_when_system_user_locked";
8522
8523        /**
8524         * Boot count since the device starts running APK level 24.
8525         * <p>
8526         * Type: int
8527         */
8528        public static final String BOOT_COUNT = "boot_count";
8529
8530        /**
8531         * Whether the safe boot is disallowed.
8532         *
8533         * <p>This setting should have the identical value as the corresponding user restriction.
8534         * The purpose of the setting is to make the restriction available in early boot stages
8535         * before the user restrictions are loaded.
8536         * @hide
8537         */
8538        public static final String SAFE_BOOT_DISALLOWED = "safe_boot_disallowed";
8539
8540        /**
8541         * Settings to backup. This is here so that it's in the same place as the settings
8542         * keys and easy to update.
8543         *
8544         * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
8545         * and Secure as well.  This is because those tables drive both backup and
8546         * restore, and restore needs to properly whitelist keys that used to live
8547         * in those namespaces.  The keys will only actually be backed up / restored
8548         * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
8549         *
8550         * NOTE: Settings are backed up and restored in the order they appear
8551         *       in this array. If you have one setting depending on another,
8552         *       make sure that they are ordered appropriately.
8553         *
8554         * @hide
8555         */
8556        public static final String[] SETTINGS_TO_BACKUP = {
8557            BUGREPORT_IN_POWER_MENU,
8558            STAY_ON_WHILE_PLUGGED_IN,
8559            AUTO_TIME,
8560            AUTO_TIME_ZONE,
8561            POWER_SOUNDS_ENABLED,
8562            DOCK_SOUNDS_ENABLED,
8563            CHARGING_SOUNDS_ENABLED,
8564            USB_MASS_STORAGE_ENABLED,
8565            ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED,
8566            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
8567            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
8568            WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
8569            WIFI_NUM_OPEN_NETWORKS_KEPT,
8570            EMERGENCY_TONE,
8571            CALL_AUTO_RETRY,
8572            DOCK_AUDIO_MEDIA_ENABLED,
8573            ENCODED_SURROUND_OUTPUT,
8574            LOW_POWER_MODE_TRIGGER_LEVEL
8575        };
8576
8577        // Populated lazily, guarded by class object:
8578        private static NameValueCache sNameValueCache = new NameValueCache(
8579                    CONTENT_URI,
8580                    CALL_METHOD_GET_GLOBAL,
8581                    CALL_METHOD_PUT_GLOBAL);
8582
8583        // Certain settings have been moved from global to the per-user secure namespace
8584        private static final HashSet<String> MOVED_TO_SECURE;
8585        static {
8586            MOVED_TO_SECURE = new HashSet<String>(1);
8587            MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
8588        }
8589
8590        /** @hide */
8591        public static void getMovedToSecureSettings(Set<String> outKeySet) {
8592            outKeySet.addAll(MOVED_TO_SECURE);
8593        }
8594
8595        /**
8596         * Look up a name in the database.
8597         * @param resolver to access the database with
8598         * @param name to look up in the table
8599         * @return the corresponding value, or null if not present
8600         */
8601        public static String getString(ContentResolver resolver, String name) {
8602            return getStringForUser(resolver, name, UserHandle.myUserId());
8603        }
8604
8605        /** @hide */
8606        public static String getStringForUser(ContentResolver resolver, String name,
8607                int userHandle) {
8608            if (MOVED_TO_SECURE.contains(name)) {
8609                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
8610                        + " to android.provider.Settings.Secure, returning read-only value.");
8611                return Secure.getStringForUser(resolver, name, userHandle);
8612            }
8613            return sNameValueCache.getStringForUser(resolver, name, userHandle);
8614        }
8615
8616        /**
8617         * Store a name/value pair into the database.
8618         * @param resolver to access the database with
8619         * @param name to store
8620         * @param value to associate with the name
8621         * @return true if the value was set, false on database errors
8622         */
8623        public static boolean putString(ContentResolver resolver,
8624                String name, String value) {
8625            return putStringForUser(resolver, name, value, UserHandle.myUserId());
8626        }
8627
8628        /** @hide */
8629        public static boolean putStringForUser(ContentResolver resolver,
8630                String name, String value, int userHandle) {
8631            if (LOCAL_LOGV) {
8632                Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
8633                        + " for " + userHandle);
8634            }
8635            // Global and Secure have the same access policy so we can forward writes
8636            if (MOVED_TO_SECURE.contains(name)) {
8637                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
8638                        + " to android.provider.Settings.Secure, value is unchanged.");
8639                return Secure.putStringForUser(resolver, name, value, userHandle);
8640            }
8641            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
8642        }
8643
8644        /**
8645         * Construct the content URI for a particular name/value pair,
8646         * useful for monitoring changes with a ContentObserver.
8647         * @param name to look up in the table
8648         * @return the corresponding content URI, or null if not present
8649         */
8650        public static Uri getUriFor(String name) {
8651            return getUriFor(CONTENT_URI, name);
8652        }
8653
8654        /**
8655         * Convenience function for retrieving a single secure settings value
8656         * as an integer.  Note that internally setting values are always
8657         * stored as strings; this function converts the string to an integer
8658         * for you.  The default value will be returned if the setting is
8659         * not defined or not an integer.
8660         *
8661         * @param cr The ContentResolver to access.
8662         * @param name The name of the setting to retrieve.
8663         * @param def Value to return if the setting is not defined.
8664         *
8665         * @return The setting's current value, or 'def' if it is not defined
8666         * or not a valid integer.
8667         */
8668        public static int getInt(ContentResolver cr, String name, int def) {
8669            String v = getString(cr, name);
8670            try {
8671                return v != null ? Integer.parseInt(v) : def;
8672            } catch (NumberFormatException e) {
8673                return def;
8674            }
8675        }
8676
8677        /**
8678         * Convenience function for retrieving a single secure settings value
8679         * as an integer.  Note that internally setting values are always
8680         * stored as strings; this function converts the string to an integer
8681         * for you.
8682         * <p>
8683         * This version does not take a default value.  If the setting has not
8684         * been set, or the string value is not a number,
8685         * it throws {@link SettingNotFoundException}.
8686         *
8687         * @param cr The ContentResolver to access.
8688         * @param name The name of the setting to retrieve.
8689         *
8690         * @throws SettingNotFoundException Thrown if a setting by the given
8691         * name can't be found or the setting value is not an integer.
8692         *
8693         * @return The setting's current value.
8694         */
8695        public static int getInt(ContentResolver cr, String name)
8696                throws SettingNotFoundException {
8697            String v = getString(cr, name);
8698            try {
8699                return Integer.parseInt(v);
8700            } catch (NumberFormatException e) {
8701                throw new SettingNotFoundException(name);
8702            }
8703        }
8704
8705        /**
8706         * Convenience function for updating a single settings value as an
8707         * integer. This will either create a new entry in the table if the
8708         * given name does not exist, or modify the value of the existing row
8709         * with that name.  Note that internally setting values are always
8710         * stored as strings, so this function converts the given value to a
8711         * string before storing it.
8712         *
8713         * @param cr The ContentResolver to access.
8714         * @param name The name of the setting to modify.
8715         * @param value The new value for the setting.
8716         * @return true if the value was set, false on database errors
8717         */
8718        public static boolean putInt(ContentResolver cr, String name, int value) {
8719            return putString(cr, name, Integer.toString(value));
8720        }
8721
8722        /**
8723         * Convenience function for retrieving a single secure settings value
8724         * as a {@code long}.  Note that internally setting values are always
8725         * stored as strings; this function converts the string to a {@code long}
8726         * for you.  The default value will be returned if the setting is
8727         * not defined or not a {@code long}.
8728         *
8729         * @param cr The ContentResolver to access.
8730         * @param name The name of the setting to retrieve.
8731         * @param def Value to return if the setting is not defined.
8732         *
8733         * @return The setting's current value, or 'def' if it is not defined
8734         * or not a valid {@code long}.
8735         */
8736        public static long getLong(ContentResolver cr, String name, long def) {
8737            String valString = getString(cr, name);
8738            long value;
8739            try {
8740                value = valString != null ? Long.parseLong(valString) : def;
8741            } catch (NumberFormatException e) {
8742                value = def;
8743            }
8744            return value;
8745        }
8746
8747        /**
8748         * Convenience function for retrieving a single secure settings value
8749         * as a {@code long}.  Note that internally setting values are always
8750         * stored as strings; this function converts the string to a {@code long}
8751         * for you.
8752         * <p>
8753         * This version does not take a default value.  If the setting has not
8754         * been set, or the string value is not a number,
8755         * it throws {@link SettingNotFoundException}.
8756         *
8757         * @param cr The ContentResolver to access.
8758         * @param name The name of the setting to retrieve.
8759         *
8760         * @return The setting's current value.
8761         * @throws SettingNotFoundException Thrown if a setting by the given
8762         * name can't be found or the setting value is not an integer.
8763         */
8764        public static long getLong(ContentResolver cr, String name)
8765                throws SettingNotFoundException {
8766            String valString = getString(cr, name);
8767            try {
8768                return Long.parseLong(valString);
8769            } catch (NumberFormatException e) {
8770                throw new SettingNotFoundException(name);
8771            }
8772        }
8773
8774        /**
8775         * Convenience function for updating a secure settings value as a long
8776         * integer. This will either create a new entry in the table if the
8777         * given name does not exist, or modify the value of the existing row
8778         * with that name.  Note that internally setting values are always
8779         * stored as strings, so this function converts the given value to a
8780         * string before storing it.
8781         *
8782         * @param cr The ContentResolver to access.
8783         * @param name The name of the setting to modify.
8784         * @param value The new value for the setting.
8785         * @return true if the value was set, false on database errors
8786         */
8787        public static boolean putLong(ContentResolver cr, String name, long value) {
8788            return putString(cr, name, Long.toString(value));
8789        }
8790
8791        /**
8792         * Convenience function for retrieving a single secure settings value
8793         * as a floating point number.  Note that internally setting values are
8794         * always stored as strings; this function converts the string to an
8795         * float for you. The default value will be returned if the setting
8796         * is not defined or not a valid float.
8797         *
8798         * @param cr The ContentResolver to access.
8799         * @param name The name of the setting to retrieve.
8800         * @param def Value to return if the setting is not defined.
8801         *
8802         * @return The setting's current value, or 'def' if it is not defined
8803         * or not a valid float.
8804         */
8805        public static float getFloat(ContentResolver cr, String name, float def) {
8806            String v = getString(cr, name);
8807            try {
8808                return v != null ? Float.parseFloat(v) : def;
8809            } catch (NumberFormatException e) {
8810                return def;
8811            }
8812        }
8813
8814        /**
8815         * Convenience function for retrieving a single secure settings value
8816         * as a float.  Note that internally setting values are always
8817         * stored as strings; this function converts the string to a float
8818         * for you.
8819         * <p>
8820         * This version does not take a default value.  If the setting has not
8821         * been set, or the string value is not a number,
8822         * it throws {@link SettingNotFoundException}.
8823         *
8824         * @param cr The ContentResolver to access.
8825         * @param name The name of the setting to retrieve.
8826         *
8827         * @throws SettingNotFoundException Thrown if a setting by the given
8828         * name can't be found or the setting value is not a float.
8829         *
8830         * @return The setting's current value.
8831         */
8832        public static float getFloat(ContentResolver cr, String name)
8833                throws SettingNotFoundException {
8834            String v = getString(cr, name);
8835            if (v == null) {
8836                throw new SettingNotFoundException(name);
8837            }
8838            try {
8839                return Float.parseFloat(v);
8840            } catch (NumberFormatException e) {
8841                throw new SettingNotFoundException(name);
8842            }
8843        }
8844
8845        /**
8846         * Convenience function for updating a single settings value as a
8847         * floating point number. This will either create a new entry in the
8848         * table if the given name does not exist, or modify the value of the
8849         * existing row with that name.  Note that internally setting values
8850         * are always stored as strings, so this function converts the given
8851         * value to a string before storing it.
8852         *
8853         * @param cr The ContentResolver to access.
8854         * @param name The name of the setting to modify.
8855         * @param value The new value for the setting.
8856         * @return true if the value was set, false on database errors
8857         */
8858        public static boolean putFloat(ContentResolver cr, String name, float value) {
8859            return putString(cr, name, Float.toString(value));
8860        }
8861
8862
8863        /**
8864          * Subscription to be used for voice call on a multi sim device. The supported values
8865          * are 0 = SUB1, 1 = SUB2 and etc.
8866          * @hide
8867          */
8868        public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
8869
8870        /**
8871          * Used to provide option to user to select subscription during dial.
8872          * The supported values are 0 = disable or 1 = enable prompt.
8873          * @hide
8874          */
8875        public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
8876
8877        /**
8878          * Subscription to be used for data call on a multi sim device. The supported values
8879          * are 0 = SUB1, 1 = SUB2 and etc.
8880          * @hide
8881          */
8882        public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
8883
8884        /**
8885          * Subscription to be used for SMS on a multi sim device. The supported values
8886          * are 0 = SUB1, 1 = SUB2 and etc.
8887          * @hide
8888          */
8889        public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
8890
8891       /**
8892          * Used to provide option to user to select subscription during send SMS.
8893          * The value 1 - enable, 0 - disable
8894          * @hide
8895          */
8896        public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";
8897
8898
8899
8900        /** User preferred subscriptions setting.
8901          * This holds the details of the user selected subscription from the card and
8902          * the activation status. Each settings string have the coma separated values
8903          * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
8904          * @hide
8905         */
8906        public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
8907                "user_preferred_sub2","user_preferred_sub3"};
8908
8909        /**
8910         * Whether to enable new contacts aggregator or not.
8911         * The value 1 - enable, 0 - disable
8912         * @hide
8913         */
8914        public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";
8915
8916        /**
8917         * Whether to enable contacts metadata syncing or not
8918         * The value 1 - enable, 0 - disable
8919         *
8920         * @removed
8921         */
8922        @Deprecated
8923        public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";
8924
8925        /**
8926         * Whether to enable contacts metadata syncing or not
8927         * The value 1 - enable, 0 - disable
8928         */
8929        public static final String CONTACT_METADATA_SYNC_ENABLED = "contact_metadata_sync_enabled";
8930
8931        /**
8932         * Whether to enable cellular on boot.
8933         * The value 1 - enable, 0 - disable
8934         * @hide
8935         */
8936        public static final String ENABLE_CELLULAR_ON_BOOT = "enable_cellular_on_boot";
8937
8938        /**
8939         * Whether toggling OEM unlock is disallowed. If disallowed, it is not possible to enable or
8940         * disable OEM unlock.
8941         * <p>
8942         * Type: int (0: allow OEM unlock setting. 1: disallow OEM unlock)
8943         * @hide
8944         */
8945        public static final String OEM_UNLOCK_DISALLOWED = "oem_unlock_disallowed";
8946    }
8947
8948    /**
8949     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
8950     * Intent URL, allowing it to be either a web page or a particular
8951     * application activity.
8952     *
8953     * @hide
8954     */
8955    public static final class Bookmarks implements BaseColumns
8956    {
8957        private static final String TAG = "Bookmarks";
8958
8959        /**
8960         * The content:// style URL for this table
8961         */
8962        public static final Uri CONTENT_URI =
8963            Uri.parse("content://" + AUTHORITY + "/bookmarks");
8964
8965        /**
8966         * The row ID.
8967         * <p>Type: INTEGER</p>
8968         */
8969        public static final String ID = "_id";
8970
8971        /**
8972         * Descriptive name of the bookmark that can be displayed to the user.
8973         * If this is empty, the title should be resolved at display time (use
8974         * {@link #getTitle(Context, Cursor)} any time you want to display the
8975         * title of a bookmark.)
8976         * <P>
8977         * Type: TEXT
8978         * </P>
8979         */
8980        public static final String TITLE = "title";
8981
8982        /**
8983         * Arbitrary string (displayed to the user) that allows bookmarks to be
8984         * organized into categories.  There are some special names for
8985         * standard folders, which all start with '@'.  The label displayed for
8986         * the folder changes with the locale (via {@link #getLabelForFolder}) but
8987         * the folder name does not change so you can consistently query for
8988         * the folder regardless of the current locale.
8989         *
8990         * <P>Type: TEXT</P>
8991         *
8992         */
8993        public static final String FOLDER = "folder";
8994
8995        /**
8996         * The Intent URL of the bookmark, describing what it points to.  This
8997         * value is given to {@link android.content.Intent#getIntent} to create
8998         * an Intent that can be launched.
8999         * <P>Type: TEXT</P>
9000         */
9001        public static final String INTENT = "intent";
9002
9003        /**
9004         * Optional shortcut character associated with this bookmark.
9005         * <P>Type: INTEGER</P>
9006         */
9007        public static final String SHORTCUT = "shortcut";
9008
9009        /**
9010         * The order in which the bookmark should be displayed
9011         * <P>Type: INTEGER</P>
9012         */
9013        public static final String ORDERING = "ordering";
9014
9015        private static final String[] sIntentProjection = { INTENT };
9016        private static final String[] sShortcutProjection = { ID, SHORTCUT };
9017        private static final String sShortcutSelection = SHORTCUT + "=?";
9018
9019        /**
9020         * Convenience function to retrieve the bookmarked Intent for a
9021         * particular shortcut key.
9022         *
9023         * @param cr The ContentResolver to query.
9024         * @param shortcut The shortcut key.
9025         *
9026         * @return Intent The bookmarked URL, or null if there is no bookmark
9027         *         matching the given shortcut.
9028         */
9029        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
9030        {
9031            Intent intent = null;
9032
9033            Cursor c = cr.query(CONTENT_URI,
9034                    sIntentProjection, sShortcutSelection,
9035                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
9036            // Keep trying until we find a valid shortcut
9037            try {
9038                while (intent == null && c.moveToNext()) {
9039                    try {
9040                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
9041                        intent = Intent.parseUri(intentURI, 0);
9042                    } catch (java.net.URISyntaxException e) {
9043                        // The stored URL is bad...  ignore it.
9044                    } catch (IllegalArgumentException e) {
9045                        // Column not found
9046                        Log.w(TAG, "Intent column not found", e);
9047                    }
9048                }
9049            } finally {
9050                if (c != null) c.close();
9051            }
9052
9053            return intent;
9054        }
9055
9056        /**
9057         * Add a new bookmark to the system.
9058         *
9059         * @param cr The ContentResolver to query.
9060         * @param intent The desired target of the bookmark.
9061         * @param title Bookmark title that is shown to the user; null if none
9062         *            or it should be resolved to the intent's title.
9063         * @param folder Folder in which to place the bookmark; null if none.
9064         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
9065         *            this is non-zero and there is an existing bookmark entry
9066         *            with this same shortcut, then that existing shortcut is
9067         *            cleared (the bookmark is not removed).
9068         * @return The unique content URL for the new bookmark entry.
9069         */
9070        public static Uri add(ContentResolver cr,
9071                                           Intent intent,
9072                                           String title,
9073                                           String folder,
9074                                           char shortcut,
9075                                           int ordering)
9076        {
9077            // If a shortcut is supplied, and it is already defined for
9078            // another bookmark, then remove the old definition.
9079            if (shortcut != 0) {
9080                cr.delete(CONTENT_URI, sShortcutSelection,
9081                        new String[] { String.valueOf((int) shortcut) });
9082            }
9083
9084            ContentValues values = new ContentValues();
9085            if (title != null) values.put(TITLE, title);
9086            if (folder != null) values.put(FOLDER, folder);
9087            values.put(INTENT, intent.toUri(0));
9088            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
9089            values.put(ORDERING, ordering);
9090            return cr.insert(CONTENT_URI, values);
9091        }
9092
9093        /**
9094         * Return the folder name as it should be displayed to the user.  This
9095         * takes care of localizing special folders.
9096         *
9097         * @param r Resources object for current locale; only need access to
9098         *          system resources.
9099         * @param folder The value found in the {@link #FOLDER} column.
9100         *
9101         * @return CharSequence The label for this folder that should be shown
9102         *         to the user.
9103         */
9104        public static CharSequence getLabelForFolder(Resources r, String folder) {
9105            return folder;
9106        }
9107
9108        /**
9109         * Return the title as it should be displayed to the user. This takes
9110         * care of localizing bookmarks that point to activities.
9111         *
9112         * @param context A context.
9113         * @param cursor A cursor pointing to the row whose title should be
9114         *        returned. The cursor must contain at least the {@link #TITLE}
9115         *        and {@link #INTENT} columns.
9116         * @return A title that is localized and can be displayed to the user,
9117         *         or the empty string if one could not be found.
9118         */
9119        public static CharSequence getTitle(Context context, Cursor cursor) {
9120            int titleColumn = cursor.getColumnIndex(TITLE);
9121            int intentColumn = cursor.getColumnIndex(INTENT);
9122            if (titleColumn == -1 || intentColumn == -1) {
9123                throw new IllegalArgumentException(
9124                        "The cursor must contain the TITLE and INTENT columns.");
9125            }
9126
9127            String title = cursor.getString(titleColumn);
9128            if (!TextUtils.isEmpty(title)) {
9129                return title;
9130            }
9131
9132            String intentUri = cursor.getString(intentColumn);
9133            if (TextUtils.isEmpty(intentUri)) {
9134                return "";
9135            }
9136
9137            Intent intent;
9138            try {
9139                intent = Intent.parseUri(intentUri, 0);
9140            } catch (URISyntaxException e) {
9141                return "";
9142            }
9143
9144            PackageManager packageManager = context.getPackageManager();
9145            ResolveInfo info = packageManager.resolveActivity(intent, 0);
9146            return info != null ? info.loadLabel(packageManager) : "";
9147        }
9148    }
9149
9150    /**
9151     * Returns the device ID that we should use when connecting to the mobile gtalk server.
9152     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
9153     * from the GoogleLoginService.
9154     *
9155     * @param androidId The Android ID for this device.
9156     * @return The device ID that should be used when connecting to the mobile gtalk server.
9157     * @hide
9158     */
9159    public static String getGTalkDeviceId(long androidId) {
9160        return "android-" + Long.toHexString(androidId);
9161    }
9162
9163    private static final String[] PM_WRITE_SETTINGS = {
9164        android.Manifest.permission.WRITE_SETTINGS
9165    };
9166    private static final String[] PM_CHANGE_NETWORK_STATE = {
9167        android.Manifest.permission.CHANGE_NETWORK_STATE,
9168        android.Manifest.permission.WRITE_SETTINGS
9169    };
9170    private static final String[] PM_SYSTEM_ALERT_WINDOW = {
9171        android.Manifest.permission.SYSTEM_ALERT_WINDOW
9172    };
9173
9174    /**
9175     * Performs a strict and comprehensive check of whether a calling package is allowed to
9176     * write/modify system settings, as the condition differs for pre-M, M+, and
9177     * privileged/preinstalled apps. If the provided uid does not match the
9178     * callingPackage, a negative result will be returned.
9179     * @hide
9180     */
9181    public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
9182            String callingPackage, boolean throwException) {
9183        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9184                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9185                PM_WRITE_SETTINGS, false);
9186    }
9187
9188    /**
9189     * Performs a strict and comprehensive check of whether a calling package is allowed to
9190     * write/modify system settings, as the condition differs for pre-M, M+, and
9191     * privileged/preinstalled apps. If the provided uid does not match the
9192     * callingPackage, a negative result will be returned. The caller is expected to have
9193     * the WRITE_SETTINGS permission declared.
9194     *
9195     * Note: if the check is successful, the operation of this app will be updated to the
9196     * current time.
9197     * @hide
9198     */
9199    public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
9200            String callingPackage, boolean throwException) {
9201        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9202                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9203                PM_WRITE_SETTINGS, true);
9204    }
9205
9206    /**
9207     * Performs a strict and comprehensive check of whether a calling package is allowed to
9208     * change the state of network, as the condition differs for pre-M, M+, and
9209     * privileged/preinstalled apps. The caller is expected to have either the
9210     * CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
9211     * permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
9212     * can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
9213     * permission and cannot be revoked. See http://b/23597341
9214     *
9215     * Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
9216     * of this app will be updated to the current time.
9217     * @hide
9218     */
9219    public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
9220            String callingPackage, boolean throwException) {
9221        if (context.checkCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE)
9222                == PackageManager.PERMISSION_GRANTED) {
9223            return true;
9224        }
9225        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9226                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9227                PM_CHANGE_NETWORK_STATE, true);
9228    }
9229
9230    /**
9231     * Performs a strict and comprehensive check of whether a calling package is allowed to
9232     * draw on top of other apps, as the conditions differs for pre-M, M+, and
9233     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
9234     * a negative result will be returned.
9235     * @hide
9236     */
9237    public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
9238            String callingPackage, boolean throwException) {
9239        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9240                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
9241                PM_SYSTEM_ALERT_WINDOW, false);
9242    }
9243
9244    /**
9245     * Performs a strict and comprehensive check of whether a calling package is allowed to
9246     * draw on top of other apps, as the conditions differs for pre-M, M+, and
9247     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
9248     * a negative result will be returned.
9249     *
9250     * Note: if the check is successful, the operation of this app will be updated to the
9251     * current time.
9252     * @hide
9253     */
9254    public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
9255            callingPackage, boolean throwException) {
9256        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9257                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
9258                PM_SYSTEM_ALERT_WINDOW, true);
9259    }
9260
9261    /**
9262     * Helper method to perform a general and comprehensive check of whether an operation that is
9263     * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
9264     * OP_WRITE_SETTINGS
9265     * @hide
9266     */
9267    public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
9268            int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
9269            permissions, boolean makeNote) {
9270        if (callingPackage == null) {
9271            return false;
9272        }
9273
9274        AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
9275        int mode = AppOpsManager.MODE_DEFAULT;
9276        if (makeNote) {
9277            mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
9278        } else {
9279            mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
9280        }
9281
9282        switch (mode) {
9283            case AppOpsManager.MODE_ALLOWED:
9284                return true;
9285
9286            case AppOpsManager.MODE_DEFAULT:
9287                // this is the default operating mode after an app's installation
9288                // In this case we will check all associated static permission to see
9289                // if it is granted during install time.
9290                for (String permission : permissions) {
9291                    if (context.checkCallingOrSelfPermission(permission) == PackageManager
9292                            .PERMISSION_GRANTED) {
9293                        // if either of the permissions are granted, we will allow it
9294                        return true;
9295                    }
9296                }
9297
9298            default:
9299                // this is for all other cases trickled down here...
9300                if (!throwException) {
9301                    return false;
9302                }
9303        }
9304
9305        // prepare string to throw SecurityException
9306        StringBuilder exceptionMessage = new StringBuilder();
9307        exceptionMessage.append(callingPackage);
9308        exceptionMessage.append(" was not granted ");
9309        if (permissions.length > 1) {
9310            exceptionMessage.append(" either of these permissions: ");
9311        } else {
9312            exceptionMessage.append(" this permission: ");
9313        }
9314        for (int i = 0; i < permissions.length; i++) {
9315            exceptionMessage.append(permissions[i]);
9316            exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
9317        }
9318
9319        throw new SecurityException(exceptionMessage.toString());
9320    }
9321
9322    /**
9323     * Retrieves a correponding package name for a given uid. It will query all
9324     * packages that are associated with the given uid, but it will return only
9325     * the zeroth result.
9326     * Note: If package could not be found, a null is returned.
9327     * @hide
9328     */
9329    public static String getPackageNameForUid(Context context, int uid) {
9330        String[] packages = context.getPackageManager().getPackagesForUid(uid);
9331        if (packages == null) {
9332            return null;
9333        }
9334        return packages[0];
9335    }
9336}
9337