Settings.java revision f678cc9c2bcee846b67a9b345fc88002b0e58981
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.LocaleList;
52import android.os.Process;
53import android.os.RemoteException;
54import android.os.ServiceManager;
55import android.os.UserHandle;
56import android.os.Build.VERSION_CODES;
57import android.speech.tts.TextToSpeech;
58import android.text.TextUtils;
59import android.util.AndroidException;
60import android.util.ArrayMap;
61import android.util.ArraySet;
62import android.util.Log;
63import android.util.MemoryIntArray;
64
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. The value is an integer.
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 Key with the settings table generation. The value is an integer.
1333     *
1334     * @see #CALL_METHOD_TRACK_GENERATION_KEY
1335     */
1336    public static final String CALL_METHOD_GENERATION_KEY = "_generation";
1337
1338    /**
1339     * @hide - User handle argument extra to the fast-path call()-based requests
1340     */
1341    public static final String CALL_METHOD_USER_KEY = "_user";
1342
1343    /** @hide - Private call() method to write to 'system' table */
1344    public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
1345
1346    /** @hide - Private call() method to write to 'secure' table */
1347    public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
1348
1349    /** @hide - Private call() method to write to 'global' table */
1350    public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";
1351
1352    /**
1353     * Activity Extra: Limit available options in launched activity based on the given authority.
1354     * <p>
1355     * This can be passed as an extra field in an Activity Intent with one or more syncable content
1356     * provider's authorities as a String[]. This field is used by some intents to alter the
1357     * behavior of the called activity.
1358     * <p>
1359     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
1360     * on the authority given.
1361     */
1362    public static final String EXTRA_AUTHORITIES = "authorities";
1363
1364    /**
1365     * Activity Extra: Limit available options in launched activity based on the given account
1366     * types.
1367     * <p>
1368     * This can be passed as an extra field in an Activity Intent with one or more account types
1369     * as a String[]. This field is used by some intents to alter the behavior of the called
1370     * activity.
1371     * <p>
1372     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
1373     * list.
1374     */
1375    public static final String EXTRA_ACCOUNT_TYPES = "account_types";
1376
1377    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
1378
1379    /**
1380     * Activity Extra: The device identifier to act upon.
1381     * <p>
1382     * This can be passed as an extra field in an Activity Intent with a single
1383     * InputDeviceIdentifier. This field is used by some activities to jump straight into the
1384     * settings for the given device.
1385     * <p>
1386     * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
1387     * dialog for the given device.
1388     * @hide
1389     */
1390    public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";
1391
1392    /**
1393     * Activity Extra: Enable or disable Airplane Mode.
1394     * <p>
1395     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
1396     * intent as a boolean to indicate if it should be enabled.
1397     */
1398    public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";
1399
1400    /**
1401     * Activity Extra: Enable or disable Battery saver mode.
1402     * <p>
1403     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
1404     * intent as a boolean to indicate if it should be enabled.
1405     */
1406    public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
1407            "android.settings.extra.battery_saver_mode_enabled";
1408
1409    /**
1410     * Activity Extra: Enable or disable Do Not Disturb mode.
1411     * <p>
1412     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1413     * intent as a boolean to indicate if it should be enabled.
1414     */
1415    public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
1416            "android.settings.extra.do_not_disturb_mode_enabled";
1417
1418    /**
1419     * Activity Extra: How many minutes to enable do not disturb mode for.
1420     * <p>
1421     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
1422     * intent to indicate how long do not disturb mode should be enabled for.
1423     */
1424    public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
1425            "android.settings.extra.do_not_disturb_mode_minutes";
1426
1427    /**
1428     * Activity Extra: Number of certificates
1429     * <p>
1430     * This can be passed as an extra field to the {@link #ACTION_MONITORING_CERT_INFO}
1431     * intent to indicate the number of certificates
1432     * @hide
1433     */
1434    public static final String EXTRA_NUMBER_OF_CERTIFICATES =
1435            "android.settings.extra.number_of_certificates";
1436
1437    private static final String JID_RESOURCE_PREFIX = "android";
1438
1439    public static final String AUTHORITY = "settings";
1440
1441    private static final String TAG = "Settings";
1442    private static final boolean LOCAL_LOGV = false;
1443
1444    // Lock ensures that when enabling/disabling the master location switch, we don't end up
1445    // with a partial enable/disable state in multi-threaded situations.
1446    private static final Object mLocationSettingsLock = new Object();
1447
1448    public static class SettingNotFoundException extends AndroidException {
1449        public SettingNotFoundException(String msg) {
1450            super(msg);
1451        }
1452    }
1453
1454    /**
1455     * Common base for tables of name/value settings.
1456     */
1457    public static class NameValueTable implements BaseColumns {
1458        public static final String NAME = "name";
1459        public static final String VALUE = "value";
1460
1461        protected static boolean putString(ContentResolver resolver, Uri uri,
1462                String name, String value) {
1463            // The database will take care of replacing duplicates.
1464            try {
1465                ContentValues values = new ContentValues();
1466                values.put(NAME, name);
1467                values.put(VALUE, value);
1468                resolver.insert(uri, values);
1469                return true;
1470            } catch (SQLException e) {
1471                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
1472                return false;
1473            }
1474        }
1475
1476        public static Uri getUriFor(Uri uri, String name) {
1477            return Uri.withAppendedPath(uri, name);
1478        }
1479    }
1480
1481    private static final class GenerationTracker {
1482        private final MemoryIntArray mArray;
1483        private final Runnable mErrorHandler;
1484        private final int mIndex;
1485        private int mCurrentGeneration;
1486
1487        public GenerationTracker(@NonNull MemoryIntArray array, int index,
1488                int generation, Runnable errorHandler) {
1489            mArray = array;
1490            mIndex = index;
1491            mErrorHandler = errorHandler;
1492            mCurrentGeneration = generation;
1493        }
1494
1495        public boolean isGenerationChanged() {
1496            final int currentGeneration = readCurrentGeneration();
1497            if (currentGeneration >= 0) {
1498                if (currentGeneration == mCurrentGeneration) {
1499                    return false;
1500                }
1501                mCurrentGeneration = currentGeneration;
1502            }
1503            return true;
1504        }
1505
1506        private int readCurrentGeneration() {
1507            try {
1508                return mArray.get(mIndex);
1509            } catch (IOException e) {
1510                Log.e(TAG, "Error getting current generation", e);
1511                if (mErrorHandler != null) {
1512                    mErrorHandler.run();
1513                }
1514            }
1515            return -1;
1516        }
1517
1518        public void destroy() {
1519            try {
1520                mArray.close();
1521            } catch (IOException e) {
1522                Log.e(TAG, "Error closing backing array", e);
1523                if (mErrorHandler != null) {
1524                    mErrorHandler.run();
1525                }
1526            }
1527        }
1528    }
1529
1530    // Thread-safe.
1531    private static class NameValueCache {
1532        private static final boolean DEBUG = false;
1533
1534        private final Uri mUri;
1535
1536        private static final String[] SELECT_VALUE =
1537            new String[] { Settings.NameValueTable.VALUE };
1538        private static final String NAME_EQ_PLACEHOLDER = "name=?";
1539
1540        // Must synchronize on 'this' to access mValues and mValuesVersion.
1541        private final HashMap<String, String> mValues = new HashMap<String, String>();
1542
1543        // Initially null; set lazily and held forever.  Synchronized on 'this'.
1544        private IContentProvider mContentProvider = null;
1545
1546        // The method we'll call (or null, to not use) on the provider
1547        // for the fast path of retrieving settings.
1548        private final String mCallGetCommand;
1549        private final String mCallSetCommand;
1550
1551        @GuardedBy("this")
1552        private GenerationTracker mGenerationTracker;
1553
1554        public NameValueCache(Uri uri, String getCommand, String setCommand) {
1555            mUri = uri;
1556            mCallGetCommand = getCommand;
1557            mCallSetCommand = setCommand;
1558        }
1559
1560        private IContentProvider lazyGetProvider(ContentResolver cr) {
1561            IContentProvider cp = null;
1562            synchronized (this) {
1563                cp = mContentProvider;
1564                if (cp == null) {
1565                    cp = mContentProvider = cr.acquireProvider(mUri.getAuthority());
1566                }
1567            }
1568            return cp;
1569        }
1570
1571        public boolean putStringForUser(ContentResolver cr, String name, String value,
1572                final int userHandle) {
1573            try {
1574                Bundle arg = new Bundle();
1575                arg.putString(Settings.NameValueTable.VALUE, value);
1576                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
1577                IContentProvider cp = lazyGetProvider(cr);
1578                cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
1579            } catch (RemoteException e) {
1580                Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
1581                return false;
1582            }
1583            return true;
1584        }
1585
1586        public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
1587            final boolean isSelf = (userHandle == UserHandle.myUserId());
1588            if (isSelf) {
1589                synchronized (this) {
1590                    if (mGenerationTracker != null) {
1591                        if (mGenerationTracker.isGenerationChanged()) {
1592                            if (DEBUG) {
1593                                Log.i(TAG, "Generation changed for type:"
1594                                        + mUri.getPath() + " in package:"
1595                                        + cr.getPackageName() +" and user:" + userHandle);
1596                            }
1597                            mValues.clear();
1598                        } else if (mValues.containsKey(name)) {
1599                            return mValues.get(name);
1600                        }
1601                    }
1602                }
1603            } else {
1604                if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
1605                        + " by user " + UserHandle.myUserId() + " so skipping cache");
1606            }
1607
1608            IContentProvider cp = lazyGetProvider(cr);
1609
1610            // Try the fast path first, not using query().  If this
1611            // fails (alternate Settings provider that doesn't support
1612            // this interface?) then we fall back to the query/table
1613            // interface.
1614            if (mCallGetCommand != null) {
1615                try {
1616                    Bundle args = null;
1617                    if (!isSelf) {
1618                        args = new Bundle();
1619                        args.putInt(CALL_METHOD_USER_KEY, userHandle);
1620                    }
1621                    boolean needsGenerationTracker = false;
1622                    synchronized (this) {
1623                        if (isSelf && mGenerationTracker == null) {
1624                            needsGenerationTracker = true;
1625                            if (args == null) {
1626                                args = new Bundle();
1627                            }
1628                            args.putString(CALL_METHOD_TRACK_GENERATION_KEY, null);
1629                            if (DEBUG) {
1630                                Log.i(TAG, "Requested generation tracker for type: "+ mUri.getPath()
1631                                        + " in package:" + cr.getPackageName() +" and user:"
1632                                        + userHandle);
1633                            }
1634                        }
1635                    }
1636                    Bundle b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
1637                    if (b != null) {
1638                        String value = b.getString(Settings.NameValueTable.VALUE);
1639                        // Don't update our cache for reads of other users' data
1640                        if (isSelf) {
1641                            synchronized (this) {
1642                                if (needsGenerationTracker) {
1643                                    MemoryIntArray array = b.getParcelable(
1644                                            CALL_METHOD_TRACK_GENERATION_KEY);
1645                                    final int index = b.getInt(
1646                                            CALL_METHOD_GENERATION_INDEX_KEY, -1);
1647                                    if (array != null && index >= 0) {
1648                                        final int generation = b.getInt(
1649                                                CALL_METHOD_GENERATION_KEY, 0);
1650                                        if (DEBUG) {
1651                                            Log.i(TAG, "Received generation tracker for type:"
1652                                                    + mUri.getPath() + " in package:"
1653                                                    + cr.getPackageName() + " and user:"
1654                                                    + userHandle + " with index:" + index);
1655                                        }
1656                                        mGenerationTracker = new GenerationTracker(array, index,
1657                                                generation, () -> {
1658                                            synchronized (this) {
1659                                                Log.e(TAG, "Error accessing generation"
1660                                                        + " tracker - removing");
1661                                                if (mGenerationTracker != null) {
1662                                                    GenerationTracker generationTracker =
1663                                                            mGenerationTracker;
1664                                                    mGenerationTracker = null;
1665                                                    generationTracker.destroy();
1666                                                    mValues.clear();
1667                                                }
1668                                            }
1669                                        });
1670                                    }
1671                                }
1672                                mValues.put(name, value);
1673                            }
1674                        } else {
1675                            if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
1676                                    + " by " + UserHandle.myUserId()
1677                                    + " so not updating cache");
1678                        }
1679                        return value;
1680                    }
1681                    // If the response Bundle is null, we fall through
1682                    // to the query interface below.
1683                } catch (RemoteException e) {
1684                    // Not supported by the remote side?  Fall through
1685                    // to query().
1686                }
1687            }
1688
1689            Cursor c = null;
1690            try {
1691                c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE, NAME_EQ_PLACEHOLDER,
1692                             new String[]{name}, null, null);
1693                if (c == null) {
1694                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
1695                    return null;
1696                }
1697
1698                String value = c.moveToNext() ? c.getString(0) : null;
1699                synchronized (this) {
1700                    mValues.put(name, value);
1701                }
1702                if (LOCAL_LOGV) {
1703                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
1704                            name + " = " + (value == null ? "(null)" : value));
1705                }
1706                return value;
1707            } catch (RemoteException e) {
1708                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
1709                return null;  // Return null, but don't cache it.
1710            } finally {
1711                if (c != null) c.close();
1712            }
1713        }
1714    }
1715
1716    /**
1717     * Checks if the specified context can draw on top of other apps. As of API
1718     * level 23, an app cannot draw on top of other apps unless it declares the
1719     * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its
1720     * manifest, <em>and</em> the user specifically grants the app this
1721     * capability. To prompt the user to grant this approval, the app must send an
1722     * intent with the action
1723     * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}, which
1724     * causes the system to display a permission management screen.
1725     *
1726     * @param context App context.
1727     * @return true if the specified context can draw on top of other apps, false otherwise
1728     */
1729    public static boolean canDrawOverlays(Context context) {
1730        return Settings.isCallingPackageAllowedToDrawOverlays(context, Process.myUid(),
1731                context.getOpPackageName(), false);
1732    }
1733
1734    /**
1735     * System settings, containing miscellaneous system preferences.  This
1736     * table holds simple name/value pairs.  There are convenience
1737     * functions for accessing individual settings entries.
1738     */
1739    public static final class System extends NameValueTable {
1740        private static final float DEFAULT_FONT_SCALE = 1.0f;
1741
1742        /** @hide */
1743        public static interface Validator {
1744            public boolean validate(String value);
1745        }
1746
1747        /**
1748         * The content:// style URL for this table
1749         */
1750        public static final Uri CONTENT_URI =
1751            Uri.parse("content://" + AUTHORITY + "/system");
1752
1753        private static final NameValueCache sNameValueCache = new NameValueCache(
1754                CONTENT_URI,
1755                CALL_METHOD_GET_SYSTEM,
1756                CALL_METHOD_PUT_SYSTEM);
1757
1758        private static final HashSet<String> MOVED_TO_SECURE;
1759        static {
1760            MOVED_TO_SECURE = new HashSet<String>(30);
1761            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
1762            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
1763            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
1764            MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
1765            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
1766            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
1767            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
1768            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
1769            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
1770            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
1771            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
1772            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
1773            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
1774            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
1775            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
1776            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
1777            MOVED_TO_SECURE.add(Secure.WIFI_ON);
1778            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
1779            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
1780            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
1781            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
1782            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
1783            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
1784            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
1785            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
1786            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
1787            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
1788            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
1789
1790            // At one time in System, then Global, but now back in Secure
1791            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
1792        }
1793
1794        private static final HashSet<String> MOVED_TO_GLOBAL;
1795        private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
1796        static {
1797            MOVED_TO_GLOBAL = new HashSet<String>();
1798            MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<String>();
1799
1800            // these were originally in system but migrated to secure in the past,
1801            // so are duplicated in the Secure.* namespace
1802            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
1803            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
1804            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
1805            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
1806            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
1807            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);
1808
1809            // these are moving directly from system to global
1810            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
1811            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
1812            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
1813            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
1814            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
1815            MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
1816            MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
1817            MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
1818            MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
1819            MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
1820            MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
1821            MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
1822            MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
1823            MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
1824            MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
1825            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
1826            MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
1827            MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
1828            MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
1829            MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
1830            MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
1831            MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
1832            MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
1833            MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
1834            MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
1835            MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
1836            MOVED_TO_GLOBAL.add(Settings.Global.SHOW_PROCESSES);
1837            MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
1838            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
1839            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
1840            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
1841            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
1842            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
1843            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
1844            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
1845            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
1846        }
1847
1848        private static final Validator sBooleanValidator =
1849                new DiscreteValueValidator(new String[] {"0", "1"});
1850
1851        private static final Validator sNonNegativeIntegerValidator = new Validator() {
1852            @Override
1853            public boolean validate(String value) {
1854                try {
1855                    return Integer.parseInt(value) >= 0;
1856                } catch (NumberFormatException e) {
1857                    return false;
1858                }
1859            }
1860        };
1861
1862        private static final Validator sUriValidator = new Validator() {
1863            @Override
1864            public boolean validate(String value) {
1865                try {
1866                    Uri.decode(value);
1867                    return true;
1868                } catch (IllegalArgumentException e) {
1869                    return false;
1870                }
1871            }
1872        };
1873
1874        private static final Validator sLenientIpAddressValidator = new Validator() {
1875            private static final int MAX_IPV6_LENGTH = 45;
1876
1877            @Override
1878            public boolean validate(String value) {
1879                return value.length() <= MAX_IPV6_LENGTH;
1880            }
1881        };
1882
1883        /** @hide */
1884        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
1885            outKeySet.addAll(MOVED_TO_GLOBAL);
1886            outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
1887        }
1888
1889        /** @hide */
1890        public static void getMovedToSecureSettings(Set<String> outKeySet) {
1891            outKeySet.addAll(MOVED_TO_SECURE);
1892        }
1893
1894        /** @hide */
1895        public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
1896            outKeySet.addAll(MOVED_TO_GLOBAL);
1897        }
1898
1899        /**
1900         * Look up a name in the database.
1901         * @param resolver to access the database with
1902         * @param name to look up in the table
1903         * @return the corresponding value, or null if not present
1904         */
1905        public static String getString(ContentResolver resolver, String name) {
1906            return getStringForUser(resolver, name, UserHandle.myUserId());
1907        }
1908
1909        /** @hide */
1910        public static String getStringForUser(ContentResolver resolver, String name,
1911                int userHandle) {
1912            if (MOVED_TO_SECURE.contains(name)) {
1913                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1914                        + " to android.provider.Settings.Secure, returning read-only value.");
1915                return Secure.getStringForUser(resolver, name, userHandle);
1916            }
1917            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1918                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1919                        + " to android.provider.Settings.Global, returning read-only value.");
1920                return Global.getStringForUser(resolver, name, userHandle);
1921            }
1922            return sNameValueCache.getStringForUser(resolver, name, userHandle);
1923        }
1924
1925        /**
1926         * Store a name/value pair into the database.
1927         * @param resolver to access the database with
1928         * @param name to store
1929         * @param value to associate with the name
1930         * @return true if the value was set, false on database errors
1931         */
1932        public static boolean putString(ContentResolver resolver, String name, String value) {
1933            return putStringForUser(resolver, name, value, UserHandle.myUserId());
1934        }
1935
1936        /** @hide */
1937        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
1938                int userHandle) {
1939            if (MOVED_TO_SECURE.contains(name)) {
1940                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1941                        + " to android.provider.Settings.Secure, value is unchanged.");
1942                return false;
1943            }
1944            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1945                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1946                        + " to android.provider.Settings.Global, value is unchanged.");
1947                return false;
1948            }
1949            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
1950        }
1951
1952        /**
1953         * Construct the content URI for a particular name/value pair,
1954         * useful for monitoring changes with a ContentObserver.
1955         * @param name to look up in the table
1956         * @return the corresponding content URI, or null if not present
1957         */
1958        public static Uri getUriFor(String name) {
1959            if (MOVED_TO_SECURE.contains(name)) {
1960                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1961                    + " to android.provider.Settings.Secure, returning Secure URI.");
1962                return Secure.getUriFor(Secure.CONTENT_URI, name);
1963            }
1964            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
1965                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
1966                        + " to android.provider.Settings.Global, returning read-only global URI.");
1967                return Global.getUriFor(Global.CONTENT_URI, name);
1968            }
1969            return getUriFor(CONTENT_URI, name);
1970        }
1971
1972        /**
1973         * Convenience function for retrieving a single system settings value
1974         * as an integer.  Note that internally setting values are always
1975         * stored as strings; this function converts the string to an integer
1976         * for you.  The default value will be returned if the setting is
1977         * not defined or not an integer.
1978         *
1979         * @param cr The ContentResolver to access.
1980         * @param name The name of the setting to retrieve.
1981         * @param def Value to return if the setting is not defined.
1982         *
1983         * @return The setting's current value, or 'def' if it is not defined
1984         * or not a valid integer.
1985         */
1986        public static int getInt(ContentResolver cr, String name, int def) {
1987            return getIntForUser(cr, name, def, UserHandle.myUserId());
1988        }
1989
1990        /** @hide */
1991        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
1992            String v = getStringForUser(cr, name, userHandle);
1993            try {
1994                return v != null ? Integer.parseInt(v) : def;
1995            } catch (NumberFormatException e) {
1996                return def;
1997            }
1998        }
1999
2000        /**
2001         * Convenience function for retrieving a single system settings value
2002         * as an integer.  Note that internally setting values are always
2003         * stored as strings; this function converts the string to an integer
2004         * for you.
2005         * <p>
2006         * This version does not take a default value.  If the setting has not
2007         * been set, or the string value is not a number,
2008         * it throws {@link SettingNotFoundException}.
2009         *
2010         * @param cr The ContentResolver to access.
2011         * @param name The name of the setting to retrieve.
2012         *
2013         * @throws SettingNotFoundException Thrown if a setting by the given
2014         * name can't be found or the setting value is not an integer.
2015         *
2016         * @return The setting's current value.
2017         */
2018        public static int getInt(ContentResolver cr, String name)
2019                throws SettingNotFoundException {
2020            return getIntForUser(cr, name, UserHandle.myUserId());
2021        }
2022
2023        /** @hide */
2024        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
2025                throws SettingNotFoundException {
2026            String v = getStringForUser(cr, name, userHandle);
2027            try {
2028                return Integer.parseInt(v);
2029            } catch (NumberFormatException e) {
2030                throw new SettingNotFoundException(name);
2031            }
2032        }
2033
2034        /**
2035         * Convenience function for updating a single settings value as an
2036         * integer. This will either create a new entry in the table if the
2037         * given name does not exist, or modify the value of the existing row
2038         * with that name.  Note that internally setting values are always
2039         * stored as strings, so this function converts the given value to a
2040         * string before storing it.
2041         *
2042         * @param cr The ContentResolver to access.
2043         * @param name The name of the setting to modify.
2044         * @param value The new value for the setting.
2045         * @return true if the value was set, false on database errors
2046         */
2047        public static boolean putInt(ContentResolver cr, String name, int value) {
2048            return putIntForUser(cr, name, value, UserHandle.myUserId());
2049        }
2050
2051        /** @hide */
2052        public static boolean putIntForUser(ContentResolver cr, String name, int value,
2053                int userHandle) {
2054            return putStringForUser(cr, name, Integer.toString(value), userHandle);
2055        }
2056
2057        /**
2058         * Convenience function for retrieving a single system settings value
2059         * as a {@code long}.  Note that internally setting values are always
2060         * stored as strings; this function converts the string to a {@code long}
2061         * for you.  The default value will be returned if the setting is
2062         * not defined or not a {@code long}.
2063         *
2064         * @param cr The ContentResolver to access.
2065         * @param name The name of the setting to retrieve.
2066         * @param def Value to return if the setting is not defined.
2067         *
2068         * @return The setting's current value, or 'def' if it is not defined
2069         * or not a valid {@code long}.
2070         */
2071        public static long getLong(ContentResolver cr, String name, long def) {
2072            return getLongForUser(cr, name, def, UserHandle.myUserId());
2073        }
2074
2075        /** @hide */
2076        public static long getLongForUser(ContentResolver cr, String name, long def,
2077                int userHandle) {
2078            String valString = getStringForUser(cr, name, userHandle);
2079            long value;
2080            try {
2081                value = valString != null ? Long.parseLong(valString) : def;
2082            } catch (NumberFormatException e) {
2083                value = def;
2084            }
2085            return value;
2086        }
2087
2088        /**
2089         * Convenience function for retrieving a single system settings value
2090         * as a {@code long}.  Note that internally setting values are always
2091         * stored as strings; this function converts the string to a {@code long}
2092         * for you.
2093         * <p>
2094         * This version does not take a default value.  If the setting has not
2095         * been set, or the string value is not a number,
2096         * it throws {@link SettingNotFoundException}.
2097         *
2098         * @param cr The ContentResolver to access.
2099         * @param name The name of the setting to retrieve.
2100         *
2101         * @return The setting's current value.
2102         * @throws SettingNotFoundException Thrown if a setting by the given
2103         * name can't be found or the setting value is not an integer.
2104         */
2105        public static long getLong(ContentResolver cr, String name)
2106                throws SettingNotFoundException {
2107            return getLongForUser(cr, name, UserHandle.myUserId());
2108        }
2109
2110        /** @hide */
2111        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
2112                throws SettingNotFoundException {
2113            String valString = getStringForUser(cr, name, userHandle);
2114            try {
2115                return Long.parseLong(valString);
2116            } catch (NumberFormatException e) {
2117                throw new SettingNotFoundException(name);
2118            }
2119        }
2120
2121        /**
2122         * Convenience function for updating a single settings value as a long
2123         * integer. This will either create a new entry in the table if the
2124         * given name does not exist, or modify the value of the existing row
2125         * with that name.  Note that internally setting values are always
2126         * stored as strings, so this function converts the given value to a
2127         * string before storing it.
2128         *
2129         * @param cr The ContentResolver to access.
2130         * @param name The name of the setting to modify.
2131         * @param value The new value for the setting.
2132         * @return true if the value was set, false on database errors
2133         */
2134        public static boolean putLong(ContentResolver cr, String name, long value) {
2135            return putLongForUser(cr, name, value, UserHandle.myUserId());
2136        }
2137
2138        /** @hide */
2139        public static boolean putLongForUser(ContentResolver cr, String name, long value,
2140                int userHandle) {
2141            return putStringForUser(cr, name, Long.toString(value), userHandle);
2142        }
2143
2144        /**
2145         * Convenience function for retrieving a single system settings value
2146         * as a floating point number.  Note that internally setting values are
2147         * always stored as strings; this function converts the string to an
2148         * float for you. The default value will be returned if the setting
2149         * is not defined or not a valid float.
2150         *
2151         * @param cr The ContentResolver to access.
2152         * @param name The name of the setting to retrieve.
2153         * @param def Value to return if the setting is not defined.
2154         *
2155         * @return The setting's current value, or 'def' if it is not defined
2156         * or not a valid float.
2157         */
2158        public static float getFloat(ContentResolver cr, String name, float def) {
2159            return getFloatForUser(cr, name, def, UserHandle.myUserId());
2160        }
2161
2162        /** @hide */
2163        public static float getFloatForUser(ContentResolver cr, String name, float def,
2164                int userHandle) {
2165            String v = getStringForUser(cr, name, userHandle);
2166            try {
2167                return v != null ? Float.parseFloat(v) : def;
2168            } catch (NumberFormatException e) {
2169                return def;
2170            }
2171        }
2172
2173        /**
2174         * Convenience function for retrieving a single system settings value
2175         * as a float.  Note that internally setting values are always
2176         * stored as strings; this function converts the string to a float
2177         * for you.
2178         * <p>
2179         * This version does not take a default value.  If the setting has not
2180         * been set, or the string value is not a number,
2181         * it throws {@link SettingNotFoundException}.
2182         *
2183         * @param cr The ContentResolver to access.
2184         * @param name The name of the setting to retrieve.
2185         *
2186         * @throws SettingNotFoundException Thrown if a setting by the given
2187         * name can't be found or the setting value is not a float.
2188         *
2189         * @return The setting's current value.
2190         */
2191        public static float getFloat(ContentResolver cr, String name)
2192                throws SettingNotFoundException {
2193            return getFloatForUser(cr, name, UserHandle.myUserId());
2194        }
2195
2196        /** @hide */
2197        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
2198                throws SettingNotFoundException {
2199            String v = getStringForUser(cr, name, userHandle);
2200            if (v == null) {
2201                throw new SettingNotFoundException(name);
2202            }
2203            try {
2204                return Float.parseFloat(v);
2205            } catch (NumberFormatException e) {
2206                throw new SettingNotFoundException(name);
2207            }
2208        }
2209
2210        /**
2211         * Convenience function for updating a single settings value as a
2212         * floating point number. This will either create a new entry in the
2213         * table if the given name does not exist, or modify the value of the
2214         * existing row with that name.  Note that internally setting values
2215         * are always stored as strings, so this function converts the given
2216         * value to a string before storing it.
2217         *
2218         * @param cr The ContentResolver to access.
2219         * @param name The name of the setting to modify.
2220         * @param value The new value for the setting.
2221         * @return true if the value was set, false on database errors
2222         */
2223        public static boolean putFloat(ContentResolver cr, String name, float value) {
2224            return putFloatForUser(cr, name, value, UserHandle.myUserId());
2225        }
2226
2227        /** @hide */
2228        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
2229                int userHandle) {
2230            return putStringForUser(cr, name, Float.toString(value), userHandle);
2231        }
2232
2233        /**
2234         * Convenience function to read all of the current
2235         * configuration-related settings into a
2236         * {@link Configuration} object.
2237         *
2238         * @param cr The ContentResolver to access.
2239         * @param outConfig Where to place the configuration settings.
2240         */
2241        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
2242            adjustConfigurationForUser(cr, outConfig, UserHandle.myUserId(),
2243                    false /* updateSettingsIfEmpty */);
2244        }
2245
2246        /** @hide */
2247        public static void adjustConfigurationForUser(ContentResolver cr, Configuration outConfig,
2248                int userHandle, boolean updateSettingsIfEmpty) {
2249            outConfig.fontScale = Settings.System.getFloatForUser(
2250                    cr, FONT_SCALE, DEFAULT_FONT_SCALE, userHandle);
2251            if (outConfig.fontScale < 0) {
2252                outConfig.fontScale = DEFAULT_FONT_SCALE;
2253            }
2254
2255            final String localeValue =
2256                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle);
2257            if (localeValue != null) {
2258                outConfig.setLocales(LocaleList.forLanguageTags(localeValue));
2259            } else {
2260                // Do not update configuration with emtpy settings since we need to take over the
2261                // locale list of previous user if the settings value is empty. This happens when a
2262                // new user is created.
2263
2264                if (updateSettingsIfEmpty) {
2265                    // Make current configuration persistent. This is necessary the first time a
2266                    // user log in. At the first login, the configuration settings are empty, so we
2267                    // need to store the adjusted configuration as the initial settings.
2268                    Settings.System.putStringForUser(
2269                            cr, SYSTEM_LOCALES, outConfig.getLocales().toLanguageTags(),
2270                            userHandle);
2271                }
2272            }
2273        }
2274
2275        /**
2276         * @hide Erase the fields in the Configuration that should be applied
2277         * by the settings.
2278         */
2279        public static void clearConfiguration(Configuration inoutConfig) {
2280            inoutConfig.fontScale = 0;
2281            if (!inoutConfig.userSetLocale && !inoutConfig.getLocales().isEmpty()) {
2282                inoutConfig.clearLocales();
2283            }
2284        }
2285
2286        /**
2287         * Convenience function to write a batch of configuration-related
2288         * settings from a {@link Configuration} object.
2289         *
2290         * @param cr The ContentResolver to access.
2291         * @param config The settings to write.
2292         * @return true if the values were set, false on database errors
2293         */
2294        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
2295            return putConfigurationForUser(cr, config, UserHandle.myUserId());
2296        }
2297
2298        /** @hide */
2299        public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
2300                int userHandle) {
2301            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
2302                    Settings.System.putStringForUser(
2303                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
2304        }
2305
2306        /** @hide */
2307        public static boolean hasInterestingConfigurationChanges(int changes) {
2308            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
2309                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
2310        }
2311
2312        /** @deprecated - Do not use */
2313        @Deprecated
2314        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
2315            return getShowGTalkServiceStatusForUser(cr, UserHandle.myUserId());
2316        }
2317
2318        /**
2319         * @hide
2320         * @deprecated - Do not use
2321         */
2322        public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
2323                int userHandle) {
2324            return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
2325        }
2326
2327        /** @deprecated - Do not use */
2328        @Deprecated
2329        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
2330            setShowGTalkServiceStatusForUser(cr, flag, UserHandle.myUserId());
2331        }
2332
2333        /**
2334         * @hide
2335         * @deprecated - Do not use
2336         */
2337        @Deprecated
2338        public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
2339                int userHandle) {
2340            putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
2341        }
2342
2343        private static final class DiscreteValueValidator implements Validator {
2344            private final String[] mValues;
2345
2346            public DiscreteValueValidator(String[] values) {
2347                mValues = values;
2348            }
2349
2350            @Override
2351            public boolean validate(String value) {
2352                return ArrayUtils.contains(mValues, value);
2353            }
2354        }
2355
2356        private static final class InclusiveIntegerRangeValidator implements Validator {
2357            private final int mMin;
2358            private final int mMax;
2359
2360            public InclusiveIntegerRangeValidator(int min, int max) {
2361                mMin = min;
2362                mMax = max;
2363            }
2364
2365            @Override
2366            public boolean validate(String value) {
2367                try {
2368                    final int intValue = Integer.parseInt(value);
2369                    return intValue >= mMin && intValue <= mMax;
2370                } catch (NumberFormatException e) {
2371                    return false;
2372                }
2373            }
2374        }
2375
2376        private static final class InclusiveFloatRangeValidator implements Validator {
2377            private final float mMin;
2378            private final float mMax;
2379
2380            public InclusiveFloatRangeValidator(float min, float max) {
2381                mMin = min;
2382                mMax = max;
2383            }
2384
2385            @Override
2386            public boolean validate(String value) {
2387                try {
2388                    final float floatValue = Float.parseFloat(value);
2389                    return floatValue >= mMin && floatValue <= mMax;
2390                } catch (NumberFormatException e) {
2391                    return false;
2392                }
2393            }
2394        }
2395
2396        /**
2397         * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
2398         */
2399        @Deprecated
2400        public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;
2401
2402        /**
2403         * What happens when the user presses the end call button if they're not
2404         * on a call.<br/>
2405         * <b>Values:</b><br/>
2406         * 0 - The end button does nothing.<br/>
2407         * 1 - The end button goes to the home screen.<br/>
2408         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
2409         * 3 - The end button goes to the home screen.  If the user is already on the
2410         * home screen, it puts the device to sleep.
2411         */
2412        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
2413
2414        private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
2415                new InclusiveIntegerRangeValidator(0, 3);
2416
2417        /**
2418         * END_BUTTON_BEHAVIOR value for "go home".
2419         * @hide
2420         */
2421        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
2422
2423        /**
2424         * END_BUTTON_BEHAVIOR value for "go to sleep".
2425         * @hide
2426         */
2427        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
2428
2429        /**
2430         * END_BUTTON_BEHAVIOR default value.
2431         * @hide
2432         */
2433        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
2434
2435        /**
2436         * Is advanced settings mode turned on. 0 == no, 1 == yes
2437         * @hide
2438         */
2439        public static final String ADVANCED_SETTINGS = "advanced_settings";
2440
2441        private static final Validator ADVANCED_SETTINGS_VALIDATOR = sBooleanValidator;
2442
2443        /**
2444         * ADVANCED_SETTINGS default value.
2445         * @hide
2446         */
2447        public static final int ADVANCED_SETTINGS_DEFAULT = 0;
2448
2449        /**
2450         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
2451         */
2452        @Deprecated
2453        public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;
2454
2455        /**
2456         * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
2457         */
2458        @Deprecated
2459        public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;
2460
2461        /**
2462         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
2463         */
2464        @Deprecated
2465        public static final String RADIO_WIFI = Global.RADIO_WIFI;
2466
2467        /**
2468         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
2469         * {@hide}
2470         */
2471        @Deprecated
2472        public static final String RADIO_WIMAX = Global.RADIO_WIMAX;
2473
2474        /**
2475         * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
2476         */
2477        @Deprecated
2478        public static final String RADIO_CELL = Global.RADIO_CELL;
2479
2480        /**
2481         * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
2482         */
2483        @Deprecated
2484        public static final String RADIO_NFC = Global.RADIO_NFC;
2485
2486        /**
2487         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
2488         */
2489        @Deprecated
2490        public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;
2491
2492        /**
2493         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
2494         *
2495         * {@hide}
2496         */
2497        @Deprecated
2498        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
2499                Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;
2500
2501        /**
2502         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
2503         */
2504        @Deprecated
2505        public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;
2506
2507        /**
2508         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
2509         */
2510        @Deprecated
2511        public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;
2512
2513        /**
2514         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
2515         */
2516        @Deprecated
2517        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
2518                Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;
2519
2520        /**
2521         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
2522         */
2523        @Deprecated
2524        public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;
2525
2526        /**
2527         * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
2528         */
2529        @Deprecated
2530        public static final String MODE_RINGER = Global.MODE_RINGER;
2531
2532        /**
2533         * Whether to use static IP and other static network attributes.
2534         * <p>
2535         * Set to 1 for true and 0 for false.
2536         *
2537         * @deprecated Use {@link WifiManager} instead
2538         */
2539        @Deprecated
2540        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
2541
2542        private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = sBooleanValidator;
2543
2544        /**
2545         * The static IP address.
2546         * <p>
2547         * Example: "192.168.1.51"
2548         *
2549         * @deprecated Use {@link WifiManager} instead
2550         */
2551        @Deprecated
2552        public static final String WIFI_STATIC_IP = "wifi_static_ip";
2553
2554        private static final Validator WIFI_STATIC_IP_VALIDATOR = sLenientIpAddressValidator;
2555
2556        /**
2557         * If using static IP, the gateway's IP address.
2558         * <p>
2559         * Example: "192.168.1.1"
2560         *
2561         * @deprecated Use {@link WifiManager} instead
2562         */
2563        @Deprecated
2564        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
2565
2566        private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = sLenientIpAddressValidator;
2567
2568        /**
2569         * If using static IP, the net mask.
2570         * <p>
2571         * Example: "255.255.255.0"
2572         *
2573         * @deprecated Use {@link WifiManager} instead
2574         */
2575        @Deprecated
2576        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
2577
2578        private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = sLenientIpAddressValidator;
2579
2580        /**
2581         * If using static IP, the primary DNS's IP address.
2582         * <p>
2583         * Example: "192.168.1.1"
2584         *
2585         * @deprecated Use {@link WifiManager} instead
2586         */
2587        @Deprecated
2588        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
2589
2590        private static final Validator WIFI_STATIC_DNS1_VALIDATOR = sLenientIpAddressValidator;
2591
2592        /**
2593         * If using static IP, the secondary DNS's IP address.
2594         * <p>
2595         * Example: "192.168.1.2"
2596         *
2597         * @deprecated Use {@link WifiManager} instead
2598         */
2599        @Deprecated
2600        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
2601
2602        private static final Validator WIFI_STATIC_DNS2_VALIDATOR = sLenientIpAddressValidator;
2603
2604        /**
2605         * Determines whether remote devices may discover and/or connect to
2606         * this device.
2607         * <P>Type: INT</P>
2608         * 2 -- discoverable and connectable
2609         * 1 -- connectable but not discoverable
2610         * 0 -- neither connectable nor discoverable
2611         */
2612        public static final String BLUETOOTH_DISCOVERABILITY =
2613            "bluetooth_discoverability";
2614
2615        private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
2616                new InclusiveIntegerRangeValidator(0, 2);
2617
2618        /**
2619         * Bluetooth discoverability timeout.  If this value is nonzero, then
2620         * Bluetooth becomes discoverable for a certain number of seconds,
2621         * after which is becomes simply connectable.  The value is in seconds.
2622         */
2623        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
2624            "bluetooth_discoverability_timeout";
2625
2626        private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
2627                sNonNegativeIntegerValidator;
2628
2629        /**
2630         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
2631         * instead
2632         */
2633        @Deprecated
2634        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
2635
2636        /**
2637         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
2638         * instead
2639         */
2640        @Deprecated
2641        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
2642
2643        /**
2644         * @deprecated Use
2645         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
2646         * instead
2647         */
2648        @Deprecated
2649        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
2650            "lock_pattern_tactile_feedback_enabled";
2651
2652        /**
2653         * A formatted string of the next alarm that is set, or the empty string
2654         * if there is no alarm set.
2655         *
2656         * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
2657         */
2658        @Deprecated
2659        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
2660
2661        private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
2662            private static final int MAX_LENGTH = 1000;
2663
2664            @Override
2665            public boolean validate(String value) {
2666                // TODO: No idea what the correct format is.
2667                return value == null || value.length() < MAX_LENGTH;
2668            }
2669        };
2670
2671        /**
2672         * Scaling factor for fonts, float.
2673         */
2674        public static final String FONT_SCALE = "font_scale";
2675
2676        private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
2677            @Override
2678            public boolean validate(String value) {
2679                try {
2680                    return Float.parseFloat(value) >= 0;
2681                } catch (NumberFormatException e) {
2682                    return false;
2683                }
2684            }
2685        };
2686
2687        /**
2688         * The serialized system locale value.
2689         *
2690         * Do not use this value directory.
2691         * To get system locale, use {@link LocaleList#getDefault} instead.
2692         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
2693         * instead.
2694         * @hide
2695         */
2696        public static final String SYSTEM_LOCALES = "system_locales";
2697
2698
2699        /**
2700         * Name of an application package to be debugged.
2701         *
2702         * @deprecated Use {@link Global#DEBUG_APP} instead
2703         */
2704        @Deprecated
2705        public static final String DEBUG_APP = Global.DEBUG_APP;
2706
2707        /**
2708         * If 1, when launching DEBUG_APP it will wait for the debugger before
2709         * starting user code.  If 0, it will run normally.
2710         *
2711         * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
2712         */
2713        @Deprecated
2714        public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;
2715
2716        /**
2717         * Whether or not to dim the screen. 0=no  1=yes
2718         * @deprecated This setting is no longer used.
2719         */
2720        @Deprecated
2721        public static final String DIM_SCREEN = "dim_screen";
2722
2723        private static final Validator DIM_SCREEN_VALIDATOR = sBooleanValidator;
2724
2725        /**
2726         * The amount of time in milliseconds before the device goes to sleep or begins
2727         * to dream after a period of inactivity.  This value is also known as the
2728         * user activity timeout period since the screen isn't necessarily turned off
2729         * when it expires.
2730         */
2731        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
2732
2733        private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR = sNonNegativeIntegerValidator;
2734
2735        /**
2736         * The screen backlight brightness between 0 and 255.
2737         */
2738        public static final String SCREEN_BRIGHTNESS = "screen_brightness";
2739
2740        private static final Validator SCREEN_BRIGHTNESS_VALIDATOR =
2741                new InclusiveIntegerRangeValidator(0, 255);
2742
2743        /**
2744         * Control whether to enable automatic brightness mode.
2745         */
2746        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
2747
2748        private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = sBooleanValidator;
2749
2750        /**
2751         * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
2752         * or less (<0.0 >-1.0) bright.
2753         * @hide
2754         */
2755        public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";
2756
2757        private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
2758                new InclusiveFloatRangeValidator(-1, 1);
2759
2760        /**
2761         * SCREEN_BRIGHTNESS_MODE value for manual mode.
2762         */
2763        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
2764
2765        /**
2766         * SCREEN_BRIGHTNESS_MODE value for automatic mode.
2767         */
2768        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
2769
2770        /**
2771         * Control whether the process CPU usage meter should be shown.
2772         *
2773         * @deprecated Use {@link Global#SHOW_PROCESSES} instead
2774         */
2775        @Deprecated
2776        public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;
2777
2778        /**
2779         * If 1, the activity manager will aggressively finish activities and
2780         * processes as soon as they are no longer needed.  If 0, the normal
2781         * extended lifetime is used.
2782         *
2783         * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
2784         */
2785        @Deprecated
2786        public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;
2787
2788        /**
2789         * Determines which streams are affected by ringer mode changes. The
2790         * stream type's bit should be set to 1 if it should be muted when going
2791         * into an inaudible ringer mode.
2792         */
2793        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
2794
2795        private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
2796                sNonNegativeIntegerValidator;
2797
2798        /**
2799          * Determines which streams are affected by mute. The
2800          * stream type's bit should be set to 1 if it should be muted when a mute request
2801          * is received.
2802          */
2803        public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
2804
2805        private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
2806                sNonNegativeIntegerValidator;
2807
2808        /**
2809         * Whether vibrate is on for different events. This is used internally,
2810         * changing this value will not change the vibrate. See AudioManager.
2811         */
2812        public static final String VIBRATE_ON = "vibrate_on";
2813
2814        private static final Validator VIBRATE_ON_VALIDATOR = sBooleanValidator;
2815
2816        /**
2817         * If 1, redirects the system vibrator to all currently attached input devices
2818         * that support vibration.  If there are no such input devices, then the system
2819         * vibrator is used instead.
2820         * If 0, does not register the system vibrator.
2821         *
2822         * This setting is mainly intended to provide a compatibility mechanism for
2823         * applications that only know about the system vibrator and do not use the
2824         * input device vibrator API.
2825         *
2826         * @hide
2827         */
2828        public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";
2829
2830        private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = sBooleanValidator;
2831
2832        /**
2833         * Ringer volume. This is used internally, changing this value will not
2834         * change the volume. See AudioManager.
2835         *
2836         * @removed Not used by anything since API 2.
2837         */
2838        public static final String VOLUME_RING = "volume_ring";
2839
2840        /**
2841         * System/notifications volume. This is used internally, changing this
2842         * value will not change the volume. See AudioManager.
2843         *
2844         * @removed Not used by anything since API 2.
2845         */
2846        public static final String VOLUME_SYSTEM = "volume_system";
2847
2848        /**
2849         * Voice call volume. This is used internally, changing this value will
2850         * not change the volume. See AudioManager.
2851         *
2852         * @removed Not used by anything since API 2.
2853         */
2854        public static final String VOLUME_VOICE = "volume_voice";
2855
2856        /**
2857         * Music/media/gaming volume. This is used internally, changing this
2858         * value will not change the volume. See AudioManager.
2859         *
2860         * @removed Not used by anything since API 2.
2861         */
2862        public static final String VOLUME_MUSIC = "volume_music";
2863
2864        /**
2865         * Alarm volume. This is used internally, changing this
2866         * value will not change the volume. See AudioManager.
2867         *
2868         * @removed Not used by anything since API 2.
2869         */
2870        public static final String VOLUME_ALARM = "volume_alarm";
2871
2872        /**
2873         * Notification volume. This is used internally, changing this
2874         * value will not change the volume. See AudioManager.
2875         *
2876         * @removed Not used by anything since API 2.
2877         */
2878        public static final String VOLUME_NOTIFICATION = "volume_notification";
2879
2880        /**
2881         * Bluetooth Headset volume. This is used internally, changing this value will
2882         * not change the volume. See AudioManager.
2883         *
2884         * @removed Not used by anything since API 2.
2885         */
2886        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
2887
2888        /**
2889         * Master volume (float in the range 0.0f to 1.0f).
2890         *
2891         * @hide
2892         */
2893        public static final String VOLUME_MASTER = "volume_master";
2894
2895        /**
2896         * Master mono (int 1 = mono, 0 = normal).
2897         *
2898         * @hide
2899         */
2900        public static final String MASTER_MONO = "master_mono";
2901
2902        private static final Validator MASTER_MONO_VALIDATOR = sBooleanValidator;
2903
2904        /**
2905         * Whether the notifications should use the ring volume (value of 1) or
2906         * a separate notification volume (value of 0). In most cases, users
2907         * will have this enabled so the notification and ringer volumes will be
2908         * the same. However, power users can disable this and use the separate
2909         * notification volume control.
2910         * <p>
2911         * Note: This is a one-off setting that will be removed in the future
2912         * when there is profile support. For this reason, it is kept hidden
2913         * from the public APIs.
2914         *
2915         * @hide
2916         * @deprecated
2917         */
2918        @Deprecated
2919        public static final String NOTIFICATIONS_USE_RING_VOLUME =
2920            "notifications_use_ring_volume";
2921
2922        private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = sBooleanValidator;
2923
2924        /**
2925         * Whether silent mode should allow vibration feedback. This is used
2926         * internally in AudioService and the Sound settings activity to
2927         * coordinate decoupling of vibrate and silent modes. This setting
2928         * will likely be removed in a future release with support for
2929         * audio/vibe feedback profiles.
2930         *
2931         * Not used anymore. On devices with vibrator, the user explicitly selects
2932         * silent or vibrate mode.
2933         * Kept for use by legacy database upgrade code in DatabaseHelper.
2934         * @hide
2935         */
2936        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
2937
2938        private static final Validator VIBRATE_IN_SILENT_VALIDATOR = sBooleanValidator;
2939
2940        /**
2941         * The mapping of stream type (integer) to its setting.
2942         *
2943         * @removed  Not used by anything since API 2.
2944         */
2945        public static final String[] VOLUME_SETTINGS = {
2946            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
2947            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
2948        };
2949
2950        /**
2951         * Appended to various volume related settings to record the previous
2952         * values before they the settings were affected by a silent/vibrate
2953         * ringer mode change.
2954         *
2955         * @removed  Not used by anything since API 2.
2956         */
2957        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
2958
2959        /**
2960         * Persistent store for the system-wide default ringtone URI.
2961         * <p>
2962         * If you need to play the default ringtone at any given time, it is recommended
2963         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
2964         * to the set default ringtone at the time of playing.
2965         *
2966         * @see #DEFAULT_RINGTONE_URI
2967         */
2968        public static final String RINGTONE = "ringtone";
2969
2970        private static final Validator RINGTONE_VALIDATOR = sUriValidator;
2971
2972        /**
2973         * A {@link Uri} that will point to the current default ringtone at any
2974         * given time.
2975         * <p>
2976         * If the current default ringtone is in the DRM provider and the caller
2977         * does not have permission, the exception will be a
2978         * FileNotFoundException.
2979         */
2980        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
2981
2982        /** {@hide} */
2983        public static final String RINGTONE_CACHE = "ringtone_cache";
2984        /** {@hide} */
2985        public static final Uri RINGTONE_CACHE_URI = getUriFor(RINGTONE_CACHE);
2986
2987        /**
2988         * Persistent store for the system-wide default notification sound.
2989         *
2990         * @see #RINGTONE
2991         * @see #DEFAULT_NOTIFICATION_URI
2992         */
2993        public static final String NOTIFICATION_SOUND = "notification_sound";
2994
2995        private static final Validator NOTIFICATION_SOUND_VALIDATOR = sUriValidator;
2996
2997        /**
2998         * A {@link Uri} that will point to the current default notification
2999         * sound at any given time.
3000         *
3001         * @see #DEFAULT_RINGTONE_URI
3002         */
3003        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
3004
3005        /** {@hide} */
3006        public static final String NOTIFICATION_SOUND_CACHE = "notification_sound_cache";
3007        /** {@hide} */
3008        public static final Uri NOTIFICATION_SOUND_CACHE_URI = getUriFor(NOTIFICATION_SOUND_CACHE);
3009
3010        /**
3011         * Persistent store for the system-wide default alarm alert.
3012         *
3013         * @see #RINGTONE
3014         * @see #DEFAULT_ALARM_ALERT_URI
3015         */
3016        public static final String ALARM_ALERT = "alarm_alert";
3017
3018        private static final Validator ALARM_ALERT_VALIDATOR = sUriValidator;
3019
3020        /**
3021         * A {@link Uri} that will point to the current default alarm alert at
3022         * any given time.
3023         *
3024         * @see #DEFAULT_ALARM_ALERT_URI
3025         */
3026        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
3027
3028        /** {@hide} */
3029        public static final String ALARM_ALERT_CACHE = "alarm_alert_cache";
3030        /** {@hide} */
3031        public static final Uri ALARM_ALERT_CACHE_URI = getUriFor(ALARM_ALERT_CACHE);
3032
3033        /**
3034         * Persistent store for the system default media button event receiver.
3035         *
3036         * @hide
3037         */
3038        public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";
3039
3040        private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = new Validator() {
3041            @Override
3042            public boolean validate(String value) {
3043                try {
3044                    ComponentName.unflattenFromString(value);
3045                    return true;
3046                } catch (NullPointerException e) {
3047                    return false;
3048                }
3049            }
3050        };
3051
3052        /**
3053         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
3054         */
3055        public static final String TEXT_AUTO_REPLACE = "auto_replace";
3056
3057        private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = sBooleanValidator;
3058
3059        /**
3060         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
3061         */
3062        public static final String TEXT_AUTO_CAPS = "auto_caps";
3063
3064        private static final Validator TEXT_AUTO_CAPS_VALIDATOR = sBooleanValidator;
3065
3066        /**
3067         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
3068         * feature converts two spaces to a "." and space.
3069         */
3070        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
3071
3072        private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = sBooleanValidator;
3073
3074        /**
3075         * Setting to showing password characters in text editors. 1 = On, 0 = Off
3076         */
3077        public static final String TEXT_SHOW_PASSWORD = "show_password";
3078
3079        private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = sBooleanValidator;
3080
3081        public static final String SHOW_GTALK_SERVICE_STATUS =
3082                "SHOW_GTALK_SERVICE_STATUS";
3083
3084        private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = sBooleanValidator;
3085
3086        /**
3087         * Name of activity to use for wallpaper on the home screen.
3088         *
3089         * @deprecated Use {@link WallpaperManager} instead.
3090         */
3091        @Deprecated
3092        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
3093
3094        private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
3095            private static final int MAX_LENGTH = 1000;
3096
3097            @Override
3098            public boolean validate(String value) {
3099                if (value != null && value.length() > MAX_LENGTH) {
3100                    return false;
3101                }
3102                return ComponentName.unflattenFromString(value) != null;
3103            }
3104        };
3105
3106        /**
3107         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
3108         * instead
3109         */
3110        @Deprecated
3111        public static final String AUTO_TIME = Global.AUTO_TIME;
3112
3113        /**
3114         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
3115         * instead
3116         */
3117        @Deprecated
3118        public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;
3119
3120        /**
3121         * Display times as 12 or 24 hours
3122         *   12
3123         *   24
3124         */
3125        public static final String TIME_12_24 = "time_12_24";
3126
3127        /** @hide */
3128        public static final Validator TIME_12_24_VALIDATOR =
3129                new DiscreteValueValidator(new String[] {"12", "24"});
3130
3131        /**
3132         * Date format string
3133         *   mm/dd/yyyy
3134         *   dd/mm/yyyy
3135         *   yyyy/mm/dd
3136         */
3137        public static final String DATE_FORMAT = "date_format";
3138
3139        /** @hide */
3140        public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
3141            @Override
3142            public boolean validate(String value) {
3143                try {
3144                    new SimpleDateFormat(value);
3145                    return true;
3146                } catch (IllegalArgumentException e) {
3147                    return false;
3148                }
3149            }
3150        };
3151
3152        /**
3153         * Whether the setup wizard has been run before (on first boot), or if
3154         * it still needs to be run.
3155         *
3156         * nonzero = it has been run in the past
3157         * 0 = it has not been run in the past
3158         */
3159        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
3160
3161        /** @hide */
3162        public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = sBooleanValidator;
3163
3164        /**
3165         * Scaling factor for normal window animations. Setting to 0 will disable window
3166         * animations.
3167         *
3168         * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
3169         */
3170        @Deprecated
3171        public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;
3172
3173        /**
3174         * Scaling factor for activity transition animations. Setting to 0 will disable window
3175         * animations.
3176         *
3177         * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
3178         */
3179        @Deprecated
3180        public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;
3181
3182        /**
3183         * Scaling factor for Animator-based animations. This affects both the start delay and
3184         * duration of all such animations. Setting to 0 will cause animations to end immediately.
3185         * The default value is 1.
3186         *
3187         * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
3188         */
3189        @Deprecated
3190        public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;
3191
3192        /**
3193         * Control whether the accelerometer will be used to change screen
3194         * orientation.  If 0, it will not be used unless explicitly requested
3195         * by the application; if 1, it will be used by default unless explicitly
3196         * disabled by the application.
3197         */
3198        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
3199
3200        /** @hide */
3201        public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = sBooleanValidator;
3202
3203        /**
3204         * Default screen rotation when no other policy applies.
3205         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
3206         * preference, this rotation value will be used. Must be one of the
3207         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
3208         *
3209         * @see android.view.Display#getRotation
3210         */
3211        public static final String USER_ROTATION = "user_rotation";
3212
3213        /** @hide */
3214        public static final Validator USER_ROTATION_VALIDATOR =
3215                new InclusiveIntegerRangeValidator(0, 3);
3216
3217        /**
3218         * Control whether the rotation lock toggle in the System UI should be hidden.
3219         * Typically this is done for accessibility purposes to make it harder for
3220         * the user to accidentally toggle the rotation lock while the display rotation
3221         * has been locked for accessibility.
3222         *
3223         * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
3224         * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
3225         *
3226         * @hide
3227         */
3228        public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
3229                "hide_rotation_lock_toggle_for_accessibility";
3230
3231        /** @hide */
3232        public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
3233                sBooleanValidator;
3234
3235        /**
3236         * Whether the phone vibrates when it is ringing due to an incoming call. This will
3237         * be used by Phone and Setting apps; it shouldn't affect other apps.
3238         * The value is boolean (1 or 0).
3239         *
3240         * Note: this is not same as "vibrate on ring", which had been available until ICS.
3241         * It was about AudioManager's setting and thus affected all the applications which
3242         * relied on the setting, while this is purely about the vibration setting for incoming
3243         * calls.
3244         */
3245        public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";
3246
3247        /** @hide */
3248        public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = sBooleanValidator;
3249
3250        /**
3251         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
3252         * boolean (1 or 0).
3253         */
3254        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
3255
3256        /** @hide */
3257        public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3258
3259        /**
3260         * CDMA only settings
3261         * DTMF tone type played by the dialer when dialing.
3262         *                 0 = Normal
3263         *                 1 = Long
3264         */
3265        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
3266
3267        /** @hide */
3268        public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
3269
3270        /**
3271         * Whether the hearing aid is enabled. The value is
3272         * boolean (1 or 0).
3273         * @hide
3274         */
3275        public static final String HEARING_AID = "hearing_aid";
3276
3277        /** @hide */
3278        public static final Validator HEARING_AID_VALIDATOR = sBooleanValidator;
3279
3280        /**
3281         * CDMA only settings
3282         * TTY Mode
3283         * 0 = OFF
3284         * 1 = FULL
3285         * 2 = VCO
3286         * 3 = HCO
3287         * @hide
3288         */
3289        public static final String TTY_MODE = "tty_mode";
3290
3291        /** @hide */
3292        public static final Validator TTY_MODE_VALIDATOR = new InclusiveIntegerRangeValidator(0, 3);
3293
3294        /**
3295         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
3296         * boolean (1 or 0).
3297         */
3298        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
3299
3300        /** @hide */
3301        public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = sBooleanValidator;
3302
3303        /**
3304         * Whether the haptic feedback (long presses, ...) are enabled. The value is
3305         * boolean (1 or 0).
3306         */
3307        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
3308
3309        /** @hide */
3310        public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = sBooleanValidator;
3311
3312        /**
3313         * @deprecated Each application that shows web suggestions should have its own
3314         * setting for this.
3315         */
3316        @Deprecated
3317        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
3318
3319        /** @hide */
3320        public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = sBooleanValidator;
3321
3322        /**
3323         * Whether the notification LED should repeatedly flash when a notification is
3324         * pending. The value is boolean (1 or 0).
3325         * @hide
3326         */
3327        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
3328
3329        /** @hide */
3330        public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = sBooleanValidator;
3331
3332        /**
3333         * Show pointer location on screen?
3334         * 0 = no
3335         * 1 = yes
3336         * @hide
3337         */
3338        public static final String POINTER_LOCATION = "pointer_location";
3339
3340        /** @hide */
3341        public static final Validator POINTER_LOCATION_VALIDATOR = sBooleanValidator;
3342
3343        /**
3344         * Show touch positions on screen?
3345         * 0 = no
3346         * 1 = yes
3347         * @hide
3348         */
3349        public static final String SHOW_TOUCHES = "show_touches";
3350
3351        /** @hide */
3352        public static final Validator SHOW_TOUCHES_VALIDATOR = sBooleanValidator;
3353
3354        /**
3355         * Log raw orientation data from
3356         * {@link com.android.server.policy.WindowOrientationListener} for use with the
3357         * orientationplot.py tool.
3358         * 0 = no
3359         * 1 = yes
3360         * @hide
3361         */
3362        public static final String WINDOW_ORIENTATION_LISTENER_LOG =
3363                "window_orientation_listener_log";
3364
3365        /** @hide */
3366        public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = sBooleanValidator;
3367
3368        /**
3369         * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
3370         * instead
3371         * @hide
3372         */
3373        @Deprecated
3374        public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;
3375
3376        /**
3377         * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
3378         * instead
3379         * @hide
3380         */
3381        @Deprecated
3382        public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;
3383
3384        /**
3385         * Whether to play sounds when the keyguard is shown and dismissed.
3386         * @hide
3387         */
3388        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
3389
3390        /** @hide */
3391        public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = sBooleanValidator;
3392
3393        /**
3394         * Whether the lockscreen should be completely disabled.
3395         * @hide
3396         */
3397        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
3398
3399        /** @hide */
3400        public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = sBooleanValidator;
3401
3402        /**
3403         * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
3404         * instead
3405         * @hide
3406         */
3407        @Deprecated
3408        public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;
3409
3410        /**
3411         * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
3412         * instead
3413         * @hide
3414         */
3415        @Deprecated
3416        public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;
3417
3418        /**
3419         * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
3420         * instead
3421         * @hide
3422         */
3423        @Deprecated
3424        public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;
3425
3426        /**
3427         * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
3428         * instead
3429         * @hide
3430         */
3431        @Deprecated
3432        public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;
3433
3434        /**
3435         * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
3436         * instead
3437         * @hide
3438         */
3439        @Deprecated
3440        public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;
3441
3442        /**
3443         * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
3444         * instead
3445         * @hide
3446         */
3447        @Deprecated
3448        public static final String LOCK_SOUND = Global.LOCK_SOUND;
3449
3450        /**
3451         * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
3452         * instead
3453         * @hide
3454         */
3455        @Deprecated
3456        public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;
3457
3458        /**
3459         * Receive incoming SIP calls?
3460         * 0 = no
3461         * 1 = yes
3462         * @hide
3463         */
3464        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
3465
3466        /** @hide */
3467        public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = sBooleanValidator;
3468
3469        /**
3470         * Call Preference String.
3471         * "SIP_ALWAYS" : Always use SIP with network access
3472         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
3473         * @hide
3474         */
3475        public static final String SIP_CALL_OPTIONS = "sip_call_options";
3476
3477        /** @hide */
3478        public static final Validator SIP_CALL_OPTIONS_VALIDATOR = new DiscreteValueValidator(
3479                new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});
3480
3481        /**
3482         * One of the sip call options: Always use SIP with network access.
3483         * @hide
3484         */
3485        public static final String SIP_ALWAYS = "SIP_ALWAYS";
3486
3487        /** @hide */
3488        public static final Validator SIP_ALWAYS_VALIDATOR = sBooleanValidator;
3489
3490        /**
3491         * One of the sip call options: Only if destination is a SIP address.
3492         * @hide
3493         */
3494        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
3495
3496        /** @hide */
3497        public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = sBooleanValidator;
3498
3499        /**
3500         * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
3501         * the user should be prompted each time a call is made whether it should be placed using
3502         * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
3503         * SIP_ADDRESS_ONLY.
3504         * @hide
3505         */
3506        @Deprecated
3507        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
3508
3509        /** @hide */
3510        public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = sBooleanValidator;
3511
3512        /**
3513         * Pointer speed setting.
3514         * This is an integer value in a range between -7 and +7, so there are 15 possible values.
3515         *   -7 = slowest
3516         *    0 = default speed
3517         *   +7 = fastest
3518         * @hide
3519         */
3520        public static final String POINTER_SPEED = "pointer_speed";
3521
3522        /** @hide */
3523        public static final Validator POINTER_SPEED_VALIDATOR =
3524                new InclusiveFloatRangeValidator(-7, 7);
3525
3526        /**
3527         * Whether lock-to-app will be triggered by long-press on recents.
3528         * @hide
3529         */
3530        public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";
3531
3532        /** @hide */
3533        public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = sBooleanValidator;
3534
3535        /**
3536         * I am the lolrus.
3537         * <p>
3538         * Nonzero values indicate that the user has a bukkit.
3539         * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
3540         * @hide
3541         */
3542        public static final String EGG_MODE = "egg_mode";
3543
3544        /** @hide */
3545        public static final Validator EGG_MODE_VALIDATOR = new Validator() {
3546            @Override
3547            public boolean validate(String value) {
3548                try {
3549                    return Long.parseLong(value) >= 0;
3550                } catch (NumberFormatException e) {
3551                    return false;
3552                }
3553            }
3554        };
3555
3556        /**
3557         * IMPORTANT: If you add a new public settings you also have to add it to
3558         * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
3559         * it to PRIVATE_SETTINGS below. Also add a validator that can validate
3560         * the setting value. See an example above.
3561         */
3562
3563        /**
3564         * Settings to backup. This is here so that it's in the same place as the settings
3565         * keys and easy to update.
3566         *
3567         * NOTE: Settings are backed up and restored in the order they appear
3568         *       in this array. If you have one setting depending on another,
3569         *       make sure that they are ordered appropriately.
3570         *
3571         * @hide
3572         */
3573        public static final String[] SETTINGS_TO_BACKUP = {
3574            STAY_ON_WHILE_PLUGGED_IN,   // moved to global
3575            WIFI_USE_STATIC_IP,
3576            WIFI_STATIC_IP,
3577            WIFI_STATIC_GATEWAY,
3578            WIFI_STATIC_NETMASK,
3579            WIFI_STATIC_DNS1,
3580            WIFI_STATIC_DNS2,
3581            BLUETOOTH_DISCOVERABILITY,
3582            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3583            FONT_SCALE,
3584            DIM_SCREEN,
3585            SCREEN_OFF_TIMEOUT,
3586            SCREEN_BRIGHTNESS,
3587            SCREEN_BRIGHTNESS_MODE,
3588            SCREEN_AUTO_BRIGHTNESS_ADJ,
3589            VIBRATE_INPUT_DEVICES,
3590            MODE_RINGER_STREAMS_AFFECTED,
3591            TEXT_AUTO_REPLACE,
3592            TEXT_AUTO_CAPS,
3593            TEXT_AUTO_PUNCTUATE,
3594            TEXT_SHOW_PASSWORD,
3595            AUTO_TIME,                  // moved to global
3596            AUTO_TIME_ZONE,             // moved to global
3597            TIME_12_24,
3598            DATE_FORMAT,
3599            DTMF_TONE_WHEN_DIALING,
3600            DTMF_TONE_TYPE_WHEN_DIALING,
3601            HEARING_AID,
3602            TTY_MODE,
3603            MASTER_MONO,
3604            SOUND_EFFECTS_ENABLED,
3605            HAPTIC_FEEDBACK_ENABLED,
3606            POWER_SOUNDS_ENABLED,       // moved to global
3607            DOCK_SOUNDS_ENABLED,        // moved to global
3608            LOCKSCREEN_SOUNDS_ENABLED,
3609            SHOW_WEB_SUGGESTIONS,
3610            SIP_CALL_OPTIONS,
3611            SIP_RECEIVE_CALLS,
3612            POINTER_SPEED,
3613            VIBRATE_WHEN_RINGING,
3614            RINGTONE,
3615            LOCK_TO_APP_ENABLED,
3616            NOTIFICATION_SOUND,
3617            ACCELEROMETER_ROTATION
3618        };
3619
3620        /**
3621         * These are all public system settings
3622         *
3623         * @hide
3624         */
3625        public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
3626        static {
3627            PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
3628            PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
3629            PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
3630            PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
3631            PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
3632            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
3633            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
3634            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
3635            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
3636            PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
3637            PUBLIC_SETTINGS.add(FONT_SCALE);
3638            PUBLIC_SETTINGS.add(DIM_SCREEN);
3639            PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
3640            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
3641            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
3642            PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
3643            PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
3644            PUBLIC_SETTINGS.add(VIBRATE_ON);
3645            PUBLIC_SETTINGS.add(VOLUME_RING);
3646            PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
3647            PUBLIC_SETTINGS.add(VOLUME_VOICE);
3648            PUBLIC_SETTINGS.add(VOLUME_MUSIC);
3649            PUBLIC_SETTINGS.add(VOLUME_ALARM);
3650            PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
3651            PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
3652            PUBLIC_SETTINGS.add(RINGTONE);
3653            PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
3654            PUBLIC_SETTINGS.add(ALARM_ALERT);
3655            PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
3656            PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
3657            PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
3658            PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
3659            PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
3660            PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
3661            PUBLIC_SETTINGS.add(TIME_12_24);
3662            PUBLIC_SETTINGS.add(DATE_FORMAT);
3663            PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
3664            PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
3665            PUBLIC_SETTINGS.add(USER_ROTATION);
3666            PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
3667            PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
3668            PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
3669            PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
3670            PUBLIC_SETTINGS.add(VIBRATE_WHEN_RINGING);
3671        }
3672
3673        /**
3674         * These are all hidden system settings.
3675         *
3676         * @hide
3677         */
3678        public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
3679        static {
3680            PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
3681            PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
3682            PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
3683            PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
3684            PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
3685            PRIVATE_SETTINGS.add(VOLUME_MASTER);
3686            PRIVATE_SETTINGS.add(MASTER_MONO);
3687            PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
3688            PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
3689            PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
3690            PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
3691            PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
3692            PRIVATE_SETTINGS.add(HEARING_AID);
3693            PRIVATE_SETTINGS.add(TTY_MODE);
3694            PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
3695            PRIVATE_SETTINGS.add(POINTER_LOCATION);
3696            PRIVATE_SETTINGS.add(SHOW_TOUCHES);
3697            PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
3698            PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
3699            PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
3700            PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
3701            PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
3702            PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
3703            PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
3704            PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
3705            PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
3706            PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
3707            PRIVATE_SETTINGS.add(LOCK_SOUND);
3708            PRIVATE_SETTINGS.add(UNLOCK_SOUND);
3709            PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
3710            PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
3711            PRIVATE_SETTINGS.add(SIP_ALWAYS);
3712            PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
3713            PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
3714            PRIVATE_SETTINGS.add(POINTER_SPEED);
3715            PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
3716            PRIVATE_SETTINGS.add(EGG_MODE);
3717        }
3718
3719        /**
3720         * These are all public system settings
3721         *
3722         * @hide
3723         */
3724        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
3725        static {
3726            VALIDATORS.put(END_BUTTON_BEHAVIOR,END_BUTTON_BEHAVIOR_VALIDATOR);
3727            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
3728            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
3729            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
3730                    BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
3731            VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
3732            VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
3733            VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
3734            VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
3735            VALIDATORS.put(SCREEN_BRIGHTNESS, SCREEN_BRIGHTNESS_VALIDATOR);
3736            VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
3737            VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
3738            VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
3739            VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
3740            VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
3741            VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
3742            VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
3743            VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
3744            VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
3745            VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
3746            VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
3747            VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
3748            VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
3749            VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
3750            VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
3751            VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
3752            VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
3753            VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
3754            VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
3755            VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
3756            VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
3757            VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
3758            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
3759            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
3760            VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
3761            VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
3762            VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
3763            VALIDATORS.put(MASTER_MONO, MASTER_MONO_VALIDATOR);
3764            VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
3765            VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
3766            VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
3767            VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
3768                    HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
3769            VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
3770            VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
3771            VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
3772            VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
3773            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
3774            VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
3775            VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
3776            VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
3777                    WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
3778            VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
3779            VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
3780            VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
3781            VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
3782            VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
3783            VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
3784            VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
3785            VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
3786            VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
3787            VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
3788            VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
3789            VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
3790            VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
3791            VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
3792            VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
3793        }
3794
3795        /**
3796         * These entries are considered common between the personal and the managed profile,
3797         * since the managed profile doesn't get to change them.
3798         */
3799        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
3800        static {
3801            CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
3802            CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
3803            CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
3804            CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
3805            CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
3806        }
3807
3808        /** @hide */
3809        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
3810            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
3811        }
3812
3813        /**
3814         * When to use Wi-Fi calling
3815         *
3816         * @see android.telephony.TelephonyManager.WifiCallingChoices
3817         * @hide
3818         */
3819        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
3820
3821        // Settings moved to Settings.Secure
3822
3823        /**
3824         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
3825         * instead
3826         */
3827        @Deprecated
3828        public static final String ADB_ENABLED = Global.ADB_ENABLED;
3829
3830        /**
3831         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
3832         */
3833        @Deprecated
3834        public static final String ANDROID_ID = Secure.ANDROID_ID;
3835
3836        /**
3837         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
3838         */
3839        @Deprecated
3840        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
3841
3842        /**
3843         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
3844         */
3845        @Deprecated
3846        public static final String DATA_ROAMING = Global.DATA_ROAMING;
3847
3848        /**
3849         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
3850         */
3851        @Deprecated
3852        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
3853
3854        /**
3855         * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
3856         */
3857        @Deprecated
3858        public static final String HTTP_PROXY = Global.HTTP_PROXY;
3859
3860        /**
3861         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
3862         */
3863        @Deprecated
3864        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
3865
3866        /**
3867         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
3868         * instead
3869         */
3870        @Deprecated
3871        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
3872
3873        /**
3874         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
3875         */
3876        @Deprecated
3877        public static final String LOGGING_ID = Secure.LOGGING_ID;
3878
3879        /**
3880         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
3881         */
3882        @Deprecated
3883        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
3884
3885        /**
3886         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
3887         * instead
3888         */
3889        @Deprecated
3890        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
3891
3892        /**
3893         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
3894         * instead
3895         */
3896        @Deprecated
3897        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
3898
3899        /**
3900         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
3901         * instead
3902         */
3903        @Deprecated
3904        public static final String PARENTAL_CONTROL_REDIRECT_URL =
3905            Secure.PARENTAL_CONTROL_REDIRECT_URL;
3906
3907        /**
3908         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
3909         */
3910        @Deprecated
3911        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
3912
3913        /**
3914         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
3915         */
3916        @Deprecated
3917        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
3918
3919        /**
3920         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
3921         */
3922        @Deprecated
3923        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
3924
3925       /**
3926         * @deprecated Use
3927         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
3928         */
3929        @Deprecated
3930        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
3931
3932        /**
3933         * @deprecated Use
3934         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
3935         */
3936        @Deprecated
3937        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
3938                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
3939
3940        /**
3941         * @deprecated Use
3942         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
3943         */
3944        @Deprecated
3945        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
3946                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
3947
3948        /**
3949         * @deprecated Use
3950         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
3951         */
3952        @Deprecated
3953        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
3954                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
3955
3956        /**
3957         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
3958         * instead
3959         */
3960        @Deprecated
3961        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
3962
3963        /**
3964         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
3965         */
3966        @Deprecated
3967        public static final String WIFI_ON = Global.WIFI_ON;
3968
3969        /**
3970         * @deprecated Use
3971         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
3972         * instead
3973         */
3974        @Deprecated
3975        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
3976                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
3977
3978        /**
3979         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
3980         */
3981        @Deprecated
3982        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
3983
3984        /**
3985         * @deprecated Use
3986         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
3987         */
3988        @Deprecated
3989        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
3990                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
3991
3992        /**
3993         * @deprecated Use
3994         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
3995         */
3996        @Deprecated
3997        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
3998                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
3999
4000        /**
4001         * @deprecated Use
4002         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
4003         * instead
4004         */
4005        @Deprecated
4006        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
4007                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
4008
4009        /**
4010         * @deprecated Use
4011         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
4012         */
4013        @Deprecated
4014        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
4015            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
4016
4017        /**
4018         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
4019         * instead
4020         */
4021        @Deprecated
4022        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
4023
4024        /**
4025         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
4026         */
4027        @Deprecated
4028        public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;
4029
4030        /**
4031         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
4032         */
4033        @Deprecated
4034        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
4035
4036        /**
4037         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
4038         * instead
4039         */
4040        @Deprecated
4041        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
4042
4043        /**
4044         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
4045         * instead
4046         */
4047        @Deprecated
4048        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
4049            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
4050
4051        /**
4052         * Checks if the specified app can modify system settings. As of API
4053         * level 23, an app cannot modify system settings unless it declares the
4054         * {@link android.Manifest.permission#WRITE_SETTINGS}
4055         * permission in its manifest, <em>and</em> the user specifically grants
4056         * the app this capability. To prompt the user to grant this approval,
4057         * the app must send an intent with the action {@link
4058         * android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}, which causes
4059         * the system to display a permission management screen.
4060         *
4061         * @param context App context.
4062         * @return true if the calling app can write to system settings, false otherwise
4063         */
4064        public static boolean canWrite(Context context) {
4065            return isCallingPackageAllowedToWriteSettings(context, Process.myUid(),
4066                    context.getOpPackageName(), false);
4067        }
4068    }
4069
4070    /**
4071     * Secure system settings, containing system preferences that applications
4072     * can read but are not allowed to write.  These are for preferences that
4073     * the user must explicitly modify through the system UI or specialized
4074     * APIs for those values, not modified directly by applications.
4075     */
4076    public static final class Secure extends NameValueTable {
4077        /**
4078         * The content:// style URL for this table
4079         */
4080        public static final Uri CONTENT_URI =
4081            Uri.parse("content://" + AUTHORITY + "/secure");
4082
4083        // Populated lazily, guarded by class object:
4084        private static final NameValueCache sNameValueCache = new NameValueCache(
4085                CONTENT_URI,
4086                CALL_METHOD_GET_SECURE,
4087                CALL_METHOD_PUT_SECURE);
4088
4089        private static ILockSettings sLockSettings = null;
4090
4091        private static boolean sIsSystemProcess;
4092        private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
4093        private static final HashSet<String> MOVED_TO_GLOBAL;
4094        static {
4095            MOVED_TO_LOCK_SETTINGS = new HashSet<String>(3);
4096            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
4097            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
4098            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
4099
4100            MOVED_TO_GLOBAL = new HashSet<String>();
4101            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
4102            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
4103            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
4104            MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
4105            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
4106            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
4107            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
4108            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
4109            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
4110            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
4111            MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
4112            MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
4113            MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
4114            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
4115            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
4116            MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
4117            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
4118            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
4119            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
4120            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
4121            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
4122            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
4123            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
4124            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
4125            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
4126            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
4127            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
4128            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
4129            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
4130            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
4131            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
4132            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
4133            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
4134            MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
4135            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
4136            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
4137            MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
4138            MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
4139            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
4140            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
4141            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
4142            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
4143            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
4144            MOVED_TO_GLOBAL.add(Settings.Global.SAMPLING_PROFILER_MS);
4145            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
4146            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
4147            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
4148            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
4149            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
4150            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
4151            MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
4152            MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
4153            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
4154            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
4155            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
4156            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
4157            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
4158            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
4159            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4160            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
4161            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
4162            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
4163            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
4164            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
4165            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
4166            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
4167            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED);
4168            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
4169            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
4170            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
4171            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
4172            MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
4173            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
4174            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
4175            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
4176            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
4177            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
4178            MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
4179            MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
4180            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
4181            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
4182            MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
4183            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
4184            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
4185            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
4186            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
4187            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
4188            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
4189            MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
4190            MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
4191            MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
4192            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
4193            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
4194            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
4195            MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
4196            MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
4197            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
4198            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
4199            MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
4200            MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
4201            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
4202            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
4203            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
4204            MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
4205            MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
4206            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
4207            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
4208            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
4209            MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
4210            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
4211            MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
4212            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
4213        }
4214
4215        /** @hide */
4216        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
4217            outKeySet.addAll(MOVED_TO_GLOBAL);
4218        }
4219
4220        /**
4221         * Look up a name in the database.
4222         * @param resolver to access the database with
4223         * @param name to look up in the table
4224         * @return the corresponding value, or null if not present
4225         */
4226        public static String getString(ContentResolver resolver, String name) {
4227            return getStringForUser(resolver, name, UserHandle.myUserId());
4228        }
4229
4230        /** @hide */
4231        public static String getStringForUser(ContentResolver resolver, String name,
4232                int userHandle) {
4233            if (MOVED_TO_GLOBAL.contains(name)) {
4234                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4235                        + " to android.provider.Settings.Global.");
4236                return Global.getStringForUser(resolver, name, userHandle);
4237            }
4238
4239            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
4240                synchronized (Secure.class) {
4241                    if (sLockSettings == null) {
4242                        sLockSettings = ILockSettings.Stub.asInterface(
4243                                (IBinder) ServiceManager.getService("lock_settings"));
4244                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
4245                    }
4246                }
4247                if (sLockSettings != null && !sIsSystemProcess) {
4248                    // No context; use the ActivityThread's context as an approximation for
4249                    // determining the target API level.
4250                    Application application = ActivityThread.currentApplication();
4251
4252                    boolean isPreMnc = application != null
4253                            && application.getApplicationInfo() != null
4254                            && application.getApplicationInfo().targetSdkVersion
4255                            <= VERSION_CODES.LOLLIPOP_MR1;
4256                    if (isPreMnc) {
4257                        try {
4258                            return sLockSettings.getString(name, "0", userHandle);
4259                        } catch (RemoteException re) {
4260                            // Fall through
4261                        }
4262                    } else {
4263                        throw new SecurityException("Settings.Secure." + name
4264                                + " is deprecated and no longer accessible."
4265                                + " See API documentation for potential replacements.");
4266                    }
4267                }
4268            }
4269
4270            return sNameValueCache.getStringForUser(resolver, name, userHandle);
4271        }
4272
4273        /**
4274         * Store a name/value pair into the database.
4275         * @param resolver to access the database with
4276         * @param name to store
4277         * @param value to associate with the name
4278         * @return true if the value was set, false on database errors
4279         */
4280        public static boolean putString(ContentResolver resolver, String name, String value) {
4281            return putStringForUser(resolver, name, value, UserHandle.myUserId());
4282        }
4283
4284        /** @hide */
4285        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
4286                int userHandle) {
4287            if (LOCATION_MODE.equals(name)) {
4288                // HACK ALERT: temporary hack to work around b/10491283.
4289                // TODO: once b/10491283 fixed, remove this hack
4290                return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
4291            }
4292            if (MOVED_TO_GLOBAL.contains(name)) {
4293                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
4294                        + " to android.provider.Settings.Global");
4295                return Global.putStringForUser(resolver, name, value, userHandle);
4296            }
4297            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
4298        }
4299
4300        /**
4301         * Construct the content URI for a particular name/value pair,
4302         * useful for monitoring changes with a ContentObserver.
4303         * @param name to look up in the table
4304         * @return the corresponding content URI, or null if not present
4305         */
4306        public static Uri getUriFor(String name) {
4307            if (MOVED_TO_GLOBAL.contains(name)) {
4308                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
4309                        + " to android.provider.Settings.Global, returning global URI.");
4310                return Global.getUriFor(Global.CONTENT_URI, name);
4311            }
4312            return getUriFor(CONTENT_URI, name);
4313        }
4314
4315        /**
4316         * Convenience function for retrieving a single secure settings value
4317         * as an integer.  Note that internally setting values are always
4318         * stored as strings; this function converts the string to an integer
4319         * for you.  The default value will be returned if the setting is
4320         * not defined or not an integer.
4321         *
4322         * @param cr The ContentResolver to access.
4323         * @param name The name of the setting to retrieve.
4324         * @param def Value to return if the setting is not defined.
4325         *
4326         * @return The setting's current value, or 'def' if it is not defined
4327         * or not a valid integer.
4328         */
4329        public static int getInt(ContentResolver cr, String name, int def) {
4330            return getIntForUser(cr, name, def, UserHandle.myUserId());
4331        }
4332
4333        /** @hide */
4334        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
4335            if (LOCATION_MODE.equals(name)) {
4336                // HACK ALERT: temporary hack to work around b/10491283.
4337                // TODO: once b/10491283 fixed, remove this hack
4338                return getLocationModeForUser(cr, userHandle);
4339            }
4340            String v = getStringForUser(cr, name, userHandle);
4341            try {
4342                return v != null ? Integer.parseInt(v) : def;
4343            } catch (NumberFormatException e) {
4344                return def;
4345            }
4346        }
4347
4348        /**
4349         * Convenience function for retrieving a single secure settings value
4350         * as an integer.  Note that internally setting values are always
4351         * stored as strings; this function converts the string to an integer
4352         * for you.
4353         * <p>
4354         * This version does not take a default value.  If the setting has not
4355         * been set, or the string value is not a number,
4356         * it throws {@link SettingNotFoundException}.
4357         *
4358         * @param cr The ContentResolver to access.
4359         * @param name The name of the setting to retrieve.
4360         *
4361         * @throws SettingNotFoundException Thrown if a setting by the given
4362         * name can't be found or the setting value is not an integer.
4363         *
4364         * @return The setting's current value.
4365         */
4366        public static int getInt(ContentResolver cr, String name)
4367                throws SettingNotFoundException {
4368            return getIntForUser(cr, name, UserHandle.myUserId());
4369        }
4370
4371        /** @hide */
4372        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
4373                throws SettingNotFoundException {
4374            if (LOCATION_MODE.equals(name)) {
4375                // HACK ALERT: temporary hack to work around b/10491283.
4376                // TODO: once b/10491283 fixed, remove this hack
4377                return getLocationModeForUser(cr, userHandle);
4378            }
4379            String v = getStringForUser(cr, name, userHandle);
4380            try {
4381                return Integer.parseInt(v);
4382            } catch (NumberFormatException e) {
4383                throw new SettingNotFoundException(name);
4384            }
4385        }
4386
4387        /**
4388         * Convenience function for updating a single settings value as an
4389         * integer. This will either create a new entry in the table if the
4390         * given name does not exist, or modify the value of the existing row
4391         * with that name.  Note that internally setting values are always
4392         * stored as strings, so this function converts the given value to a
4393         * string before storing it.
4394         *
4395         * @param cr The ContentResolver to access.
4396         * @param name The name of the setting to modify.
4397         * @param value The new value for the setting.
4398         * @return true if the value was set, false on database errors
4399         */
4400        public static boolean putInt(ContentResolver cr, String name, int value) {
4401            return putIntForUser(cr, name, value, UserHandle.myUserId());
4402        }
4403
4404        /** @hide */
4405        public static boolean putIntForUser(ContentResolver cr, String name, int value,
4406                int userHandle) {
4407            return putStringForUser(cr, name, Integer.toString(value), userHandle);
4408        }
4409
4410        /**
4411         * Convenience function for retrieving a single secure settings value
4412         * as a {@code long}.  Note that internally setting values are always
4413         * stored as strings; this function converts the string to a {@code long}
4414         * for you.  The default value will be returned if the setting is
4415         * not defined or not a {@code long}.
4416         *
4417         * @param cr The ContentResolver to access.
4418         * @param name The name of the setting to retrieve.
4419         * @param def Value to return if the setting is not defined.
4420         *
4421         * @return The setting's current value, or 'def' if it is not defined
4422         * or not a valid {@code long}.
4423         */
4424        public static long getLong(ContentResolver cr, String name, long def) {
4425            return getLongForUser(cr, name, def, UserHandle.myUserId());
4426        }
4427
4428        /** @hide */
4429        public static long getLongForUser(ContentResolver cr, String name, long def,
4430                int userHandle) {
4431            String valString = getStringForUser(cr, name, userHandle);
4432            long value;
4433            try {
4434                value = valString != null ? Long.parseLong(valString) : def;
4435            } catch (NumberFormatException e) {
4436                value = def;
4437            }
4438            return value;
4439        }
4440
4441        /**
4442         * Convenience function for retrieving a single secure settings value
4443         * as a {@code long}.  Note that internally setting values are always
4444         * stored as strings; this function converts the string to a {@code long}
4445         * for you.
4446         * <p>
4447         * This version does not take a default value.  If the setting has not
4448         * been set, or the string value is not a number,
4449         * it throws {@link SettingNotFoundException}.
4450         *
4451         * @param cr The ContentResolver to access.
4452         * @param name The name of the setting to retrieve.
4453         *
4454         * @return The setting's current value.
4455         * @throws SettingNotFoundException Thrown if a setting by the given
4456         * name can't be found or the setting value is not an integer.
4457         */
4458        public static long getLong(ContentResolver cr, String name)
4459                throws SettingNotFoundException {
4460            return getLongForUser(cr, name, UserHandle.myUserId());
4461        }
4462
4463        /** @hide */
4464        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
4465                throws SettingNotFoundException {
4466            String valString = getStringForUser(cr, name, userHandle);
4467            try {
4468                return Long.parseLong(valString);
4469            } catch (NumberFormatException e) {
4470                throw new SettingNotFoundException(name);
4471            }
4472        }
4473
4474        /**
4475         * Convenience function for updating a secure settings value as a long
4476         * integer. This will either create a new entry in the table if the
4477         * given name does not exist, or modify the value of the existing row
4478         * with that name.  Note that internally setting values are always
4479         * stored as strings, so this function converts the given value to a
4480         * string before storing it.
4481         *
4482         * @param cr The ContentResolver to access.
4483         * @param name The name of the setting to modify.
4484         * @param value The new value for the setting.
4485         * @return true if the value was set, false on database errors
4486         */
4487        public static boolean putLong(ContentResolver cr, String name, long value) {
4488            return putLongForUser(cr, name, value, UserHandle.myUserId());
4489        }
4490
4491        /** @hide */
4492        public static boolean putLongForUser(ContentResolver cr, String name, long value,
4493                int userHandle) {
4494            return putStringForUser(cr, name, Long.toString(value), userHandle);
4495        }
4496
4497        /**
4498         * Convenience function for retrieving a single secure settings value
4499         * as a floating point number.  Note that internally setting values are
4500         * always stored as strings; this function converts the string to an
4501         * float for you. The default value will be returned if the setting
4502         * is not defined or not a valid float.
4503         *
4504         * @param cr The ContentResolver to access.
4505         * @param name The name of the setting to retrieve.
4506         * @param def Value to return if the setting is not defined.
4507         *
4508         * @return The setting's current value, or 'def' if it is not defined
4509         * or not a valid float.
4510         */
4511        public static float getFloat(ContentResolver cr, String name, float def) {
4512            return getFloatForUser(cr, name, def, UserHandle.myUserId());
4513        }
4514
4515        /** @hide */
4516        public static float getFloatForUser(ContentResolver cr, String name, float def,
4517                int userHandle) {
4518            String v = getStringForUser(cr, name, userHandle);
4519            try {
4520                return v != null ? Float.parseFloat(v) : def;
4521            } catch (NumberFormatException e) {
4522                return def;
4523            }
4524        }
4525
4526        /**
4527         * Convenience function for retrieving a single secure settings value
4528         * as a float.  Note that internally setting values are always
4529         * stored as strings; this function converts the string to a float
4530         * for you.
4531         * <p>
4532         * This version does not take a default value.  If the setting has not
4533         * been set, or the string value is not a number,
4534         * it throws {@link SettingNotFoundException}.
4535         *
4536         * @param cr The ContentResolver to access.
4537         * @param name The name of the setting to retrieve.
4538         *
4539         * @throws SettingNotFoundException Thrown if a setting by the given
4540         * name can't be found or the setting value is not a float.
4541         *
4542         * @return The setting's current value.
4543         */
4544        public static float getFloat(ContentResolver cr, String name)
4545                throws SettingNotFoundException {
4546            return getFloatForUser(cr, name, UserHandle.myUserId());
4547        }
4548
4549        /** @hide */
4550        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
4551                throws SettingNotFoundException {
4552            String v = getStringForUser(cr, name, userHandle);
4553            if (v == null) {
4554                throw new SettingNotFoundException(name);
4555            }
4556            try {
4557                return Float.parseFloat(v);
4558            } catch (NumberFormatException e) {
4559                throw new SettingNotFoundException(name);
4560            }
4561        }
4562
4563        /**
4564         * Convenience function for updating a single settings value as a
4565         * floating point number. This will either create a new entry in the
4566         * table if the given name does not exist, or modify the value of the
4567         * existing row with that name.  Note that internally setting values
4568         * are always stored as strings, so this function converts the given
4569         * value to a string before storing it.
4570         *
4571         * @param cr The ContentResolver to access.
4572         * @param name The name of the setting to modify.
4573         * @param value The new value for the setting.
4574         * @return true if the value was set, false on database errors
4575         */
4576        public static boolean putFloat(ContentResolver cr, String name, float value) {
4577            return putFloatForUser(cr, name, value, UserHandle.myUserId());
4578        }
4579
4580        /** @hide */
4581        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
4582                int userHandle) {
4583            return putStringForUser(cr, name, Float.toString(value), userHandle);
4584        }
4585
4586        /**
4587         * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
4588         * instead
4589         */
4590        @Deprecated
4591        public static final String DEVELOPMENT_SETTINGS_ENABLED =
4592                Global.DEVELOPMENT_SETTINGS_ENABLED;
4593
4594        /**
4595         * When the user has enable the option to have a "bug report" command
4596         * in the power menu.
4597         * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
4598         * @hide
4599         */
4600        @Deprecated
4601        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
4602
4603        /**
4604         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
4605         */
4606        @Deprecated
4607        public static final String ADB_ENABLED = Global.ADB_ENABLED;
4608
4609        /**
4610         * Setting to allow mock locations and location provider status to be injected into the
4611         * LocationManager service for testing purposes during application development.  These
4612         * locations and status values  override actual location and status information generated
4613         * by network, gps, or other location providers.
4614         *
4615         * @deprecated This settings is not used anymore.
4616         */
4617        @Deprecated
4618        public static final String ALLOW_MOCK_LOCATION = "mock_location";
4619
4620        /**
4621         * A 64-bit number (as a hex string) that is randomly
4622         * generated when the user first sets up the device and should remain
4623         * constant for the lifetime of the user's device. The value may
4624         * change if a factory reset is performed on the device.
4625         * <p class="note"><strong>Note:</strong> When a device has <a
4626         * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a>
4627         * (available on certain devices running Android 4.2 or higher), each user appears as a
4628         * completely separate device, so the {@code ANDROID_ID} value is unique to each
4629         * user.</p>
4630         */
4631        public static final String ANDROID_ID = "android_id";
4632
4633        /**
4634         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
4635         */
4636        @Deprecated
4637        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
4638
4639        /**
4640         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
4641         */
4642        @Deprecated
4643        public static final String DATA_ROAMING = Global.DATA_ROAMING;
4644
4645        /**
4646         * Setting to record the input method used by default, holding the ID
4647         * of the desired method.
4648         */
4649        public static final String DEFAULT_INPUT_METHOD = "default_input_method";
4650
4651        /**
4652         * Setting to record the input method subtype used by default, holding the ID
4653         * of the desired method.
4654         */
4655        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
4656                "selected_input_method_subtype";
4657
4658        /**
4659         * Setting to record the history of input method subtype, holding the pair of ID of IME
4660         * and its last used subtype.
4661         * @hide
4662         */
4663        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
4664                "input_methods_subtype_history";
4665
4666        /**
4667         * Setting to record the visibility of input method selector
4668         */
4669        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
4670                "input_method_selector_visibility";
4671
4672        /**
4673         * The currently selected voice interaction service flattened ComponentName.
4674         * @hide
4675         */
4676        @TestApi
4677        public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";
4678
4679        /**
4680         * bluetooth HCI snoop log configuration
4681         * @hide
4682         */
4683        public static final String BLUETOOTH_HCI_LOG =
4684                "bluetooth_hci_log";
4685
4686        /**
4687         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
4688         */
4689        @Deprecated
4690        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
4691
4692        /**
4693         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
4694         * @hide
4695         */
4696        public static final String USER_SETUP_COMPLETE = "user_setup_complete";
4697
4698        /**
4699         * Prefix for category name that marks whether a suggested action from that category was
4700         * completed.
4701         * @hide
4702         */
4703        public static final String COMPLETED_CATEGORY_PREFIX = "suggested.completed_category.";
4704
4705        /**
4706         * List of input methods that are currently enabled.  This is a string
4707         * containing the IDs of all enabled input methods, each ID separated
4708         * by ':'.
4709         */
4710        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
4711
4712        /**
4713         * List of system input methods that are currently disabled.  This is a string
4714         * containing the IDs of all disabled input methods, each ID separated
4715         * by ':'.
4716         * @hide
4717         */
4718        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
4719
4720        /**
4721         * Whether to show the IME when a hard keyboard is connected. This is a boolean that
4722         * determines if the IME should be shown when a hard keyboard is attached.
4723         * @hide
4724         */
4725        public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";
4726
4727        /**
4728         * Host name and port for global http proxy. Uses ':' seperator for
4729         * between host and port.
4730         *
4731         * @deprecated Use {@link Global#HTTP_PROXY}
4732         */
4733        @Deprecated
4734        public static final String HTTP_PROXY = Global.HTTP_PROXY;
4735
4736        /**
4737         * Package designated as always-on VPN provider.
4738         *
4739         * @hide
4740         */
4741        public static final String ALWAYS_ON_VPN_APP = "always_on_vpn_app";
4742
4743        /**
4744         * Whether to block networking outside of VPN connections while always-on is set.
4745         * @see #ALWAYS_ON_VPN_APP
4746         *
4747         * @hide
4748         */
4749        public static final String ALWAYS_ON_VPN_LOCKDOWN = "always_on_vpn_lockdown";
4750
4751        /**
4752         * Whether applications can be installed for this user via the system's
4753         * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
4754         *
4755         * <p>1 = permit app installation via the system package installer intent
4756         * <p>0 = do not allow use of the package installer
4757         */
4758        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
4759
4760        /**
4761         * Comma-separated list of location providers that activities may access. Do not rely on
4762         * this value being present in settings.db or on ContentObserver notifications on the
4763         * corresponding Uri.
4764         *
4765         * @deprecated use {@link #LOCATION_MODE} and
4766         * {@link LocationManager#MODE_CHANGED_ACTION} (or
4767         * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
4768         */
4769        @Deprecated
4770        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
4771
4772        /**
4773         * The degree of location access enabled by the user.
4774         * <p>
4775         * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
4776         * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
4777         * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
4778         * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
4779         * modes that might be added in the future.
4780         * <p>
4781         * Note: do not rely on this value being present in settings.db or on ContentObserver
4782         * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
4783         * to receive changes in this value.
4784         */
4785        public static final String LOCATION_MODE = "location_mode";
4786        /**
4787         * Stores the previous location mode when {@link #LOCATION_MODE} is set to
4788         * {@link #LOCATION_MODE_OFF}
4789         * @hide
4790         */
4791        public static final String LOCATION_PREVIOUS_MODE = "location_previous_mode";
4792
4793        /**
4794         * Sets all location providers to the previous states before location was turned off.
4795         * @hide
4796         */
4797        public static final int LOCATION_MODE_PREVIOUS = -1;
4798        /**
4799         * Location access disabled.
4800         */
4801        public static final int LOCATION_MODE_OFF = 0;
4802        /**
4803         * Network Location Provider disabled, but GPS and other sensors enabled.
4804         */
4805        public static final int LOCATION_MODE_SENSORS_ONLY = 1;
4806        /**
4807         * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
4808         * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
4809         * {@link android.location.Criteria#POWER_MEDIUM}.
4810         */
4811        public static final int LOCATION_MODE_BATTERY_SAVING = 2;
4812        /**
4813         * Best-effort location computation allowed.
4814         */
4815        public static final int LOCATION_MODE_HIGH_ACCURACY = 3;
4816
4817        /**
4818         * A flag containing settings used for biometric weak
4819         * @hide
4820         */
4821        @Deprecated
4822        public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
4823                "lock_biometric_weak_flags";
4824
4825        /**
4826         * Whether lock-to-app will lock the keyguard when exiting.
4827         * @hide
4828         */
4829        public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";
4830
4831        /**
4832         * Whether autolock is enabled (0 = false, 1 = true)
4833         *
4834         * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
4835         *             level of the keyguard. Accessing this setting from an app that is targeting
4836         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4837         */
4838        @Deprecated
4839        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
4840
4841        /**
4842         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
4843         *
4844         * @deprecated Accessing this setting from an app that is targeting
4845         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4846         */
4847        @Deprecated
4848        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
4849
4850        /**
4851         * Whether lock pattern will vibrate as user enters (0 = false, 1 =
4852         * true)
4853         *
4854         * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
4855         *             lockscreen uses
4856         *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
4857         *             Accessing this setting from an app that is targeting
4858         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
4859         */
4860        @Deprecated
4861        public static final String
4862                LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";
4863
4864        /**
4865         * This preference allows the device to be locked given time after screen goes off,
4866         * subject to current DeviceAdmin policy limits.
4867         * @hide
4868         */
4869        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
4870
4871
4872        /**
4873         * This preference contains the string that shows for owner info on LockScreen.
4874         * @hide
4875         * @deprecated
4876         */
4877        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
4878
4879        /**
4880         * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
4881         * @hide
4882         */
4883        @Deprecated
4884        public static final String LOCK_SCREEN_APPWIDGET_IDS =
4885            "lock_screen_appwidget_ids";
4886
4887        /**
4888         * Id of the appwidget shown on the lock screen when appwidgets are disabled.
4889         * @hide
4890         */
4891        @Deprecated
4892        public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
4893            "lock_screen_fallback_appwidget_id";
4894
4895        /**
4896         * Index of the lockscreen appwidget to restore, -1 if none.
4897         * @hide
4898         */
4899        @Deprecated
4900        public static final String LOCK_SCREEN_STICKY_APPWIDGET =
4901            "lock_screen_sticky_appwidget";
4902
4903        /**
4904         * This preference enables showing the owner info on LockScreen.
4905         * @hide
4906         * @deprecated
4907         */
4908        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
4909            "lock_screen_owner_info_enabled";
4910
4911        /**
4912         * When set by a user, allows notifications to be shown atop a securely locked screen
4913         * in their full "private" form (same as when the device is unlocked).
4914         * @hide
4915         */
4916        public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
4917                "lock_screen_allow_private_notifications";
4918
4919        /**
4920         * When set by a user, allows notification remote input atop a securely locked screen
4921         * without having to unlock
4922         * @hide
4923         */
4924        public static final String LOCK_SCREEN_ALLOW_REMOTE_INPUT =
4925                "lock_screen_allow_remote_input";
4926
4927        /**
4928         * Set by the system to track if the user needs to see the call to action for
4929         * the lockscreen notification policy.
4930         * @hide
4931         */
4932        public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
4933                "show_note_about_notification_hiding";
4934
4935        /**
4936         * Set to 1 by the system after trust agents have been initialized.
4937         * @hide
4938         */
4939        public static final String TRUST_AGENTS_INITIALIZED =
4940                "trust_agents_initialized";
4941
4942        /**
4943         * The Logging ID (a unique 64-bit value) as a hex string.
4944         * Used as a pseudonymous identifier for logging.
4945         * @deprecated This identifier is poorly initialized and has
4946         * many collisions.  It should not be used.
4947         */
4948        @Deprecated
4949        public static final String LOGGING_ID = "logging_id";
4950
4951        /**
4952         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
4953         */
4954        @Deprecated
4955        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
4956
4957        /**
4958         * No longer supported.
4959         */
4960        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
4961
4962        /**
4963         * No longer supported.
4964         */
4965        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
4966
4967        /**
4968         * No longer supported.
4969         */
4970        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
4971
4972        /**
4973         * Settings classname to launch when Settings is clicked from All
4974         * Applications.  Needed because of user testing between the old
4975         * and new Settings apps.
4976         */
4977        // TODO: 881807
4978        public static final String SETTINGS_CLASSNAME = "settings_classname";
4979
4980        /**
4981         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
4982         */
4983        @Deprecated
4984        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
4985
4986        /**
4987         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
4988         */
4989        @Deprecated
4990        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
4991
4992        /**
4993         * If accessibility is enabled.
4994         */
4995        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
4996
4997        /**
4998         * If touch exploration is enabled.
4999         */
5000        public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";
5001
5002        /**
5003         * List of the enabled accessibility providers.
5004         */
5005        public static final String ENABLED_ACCESSIBILITY_SERVICES =
5006            "enabled_accessibility_services";
5007
5008        /**
5009         * List of the accessibility services to which the user has granted
5010         * permission to put the device into touch exploration mode.
5011         *
5012         * @hide
5013         */
5014        public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
5015            "touch_exploration_granted_accessibility_services";
5016
5017        /**
5018         * Whether to speak passwords while in accessibility mode.
5019         */
5020        public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";
5021
5022        /**
5023         * Whether to draw text with high contrast while in accessibility mode.
5024         *
5025         * @hide
5026         */
5027        public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
5028                "high_text_contrast_enabled";
5029
5030        /**
5031         * If injection of accessibility enhancing JavaScript screen-reader
5032         * is enabled.
5033         * <p>
5034         *   Note: The JavaScript based screen-reader is served by the
5035         *   Google infrastructure and enable users with disabilities to
5036         *   efficiently navigate in and explore web content.
5037         * </p>
5038         * <p>
5039         *   This property represents a boolean value.
5040         * </p>
5041         * @hide
5042         */
5043        public static final String ACCESSIBILITY_SCRIPT_INJECTION =
5044            "accessibility_script_injection";
5045
5046        /**
5047         * The URL for the injected JavaScript based screen-reader used
5048         * for providing accessibility of content in WebView.
5049         * <p>
5050         *   Note: The JavaScript based screen-reader is served by the
5051         *   Google infrastructure and enable users with disabilities to
5052         *   efficiently navigate in and explore web content.
5053         * </p>
5054         * <p>
5055         *   This property represents a string value.
5056         * </p>
5057         * @hide
5058         */
5059        public static final String ACCESSIBILITY_SCREEN_READER_URL =
5060            "accessibility_script_injection_url";
5061
5062        /**
5063         * Key bindings for navigation in built-in accessibility support for web content.
5064         * <p>
5065         *   Note: These key bindings are for the built-in accessibility navigation for
5066         *   web content which is used as a fall back solution if JavaScript in a WebView
5067         *   is not enabled or the user has not opted-in script injection from Google.
5068         * </p>
5069         * <p>
5070         *   The bindings are separated by semi-colon. A binding is a mapping from
5071         *   a key to a sequence of actions (for more details look at
5072         *   android.webkit.AccessibilityInjector). A key is represented as the hexademical
5073         *   string representation of an integer obtained from a meta state (optional) shifted
5074         *   sixteen times left and bitwise ored with a key code. An action is represented
5075         *   as a hexademical string representation of an integer where the first two digits
5076         *   are navigation action index, the second, the third, and the fourth digit pairs
5077         *   represent the action arguments. The separate actions in a binding are colon
5078         *   separated. The key and the action sequence it maps to are separated by equals.
5079         * </p>
5080         * <p>
5081         *   For example, the binding below maps the DPAD right button to traverse the
5082         *   current navigation axis once without firing an accessibility event and to
5083         *   perform the same traversal again but to fire an event:
5084         *   <code>
5085         *     0x16=0x01000100:0x01000101;
5086         *   </code>
5087         * </p>
5088         * <p>
5089         *   The goal of this binding is to enable dynamic rebinding of keys to
5090         *   navigation actions for web content without requiring a framework change.
5091         * </p>
5092         * <p>
5093         *   This property represents a string value.
5094         * </p>
5095         * @hide
5096         */
5097        public static final String ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS =
5098            "accessibility_web_content_key_bindings";
5099
5100        /**
5101         * Setting that specifies whether the display magnification is enabled.
5102         * Display magnifications allows the user to zoom in the display content
5103         * and is targeted to low vision users. The current magnification scale
5104         * is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
5105         *
5106         * @hide
5107         */
5108        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
5109                "accessibility_display_magnification_enabled";
5110
5111        /**
5112         * Setting that specifies what the display magnification scale is.
5113         * Display magnifications allows the user to zoom in the display
5114         * content and is targeted to low vision users. Whether a display
5115         * magnification is performed is controlled by
5116         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
5117         *
5118         * @hide
5119         */
5120        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
5121                "accessibility_display_magnification_scale";
5122
5123        /**
5124         * Setting that specifies whether the display magnification should be
5125         * automatically updated. If this fearture is enabled the system will
5126         * exit magnification mode or pan the viewport when a context change
5127         * occurs. For example, on staring a new activity or rotating the screen,
5128         * the system may zoom out so the user can see the new context he is in.
5129         * Another example is on showing a window that is not visible in the
5130         * magnified viewport the system may pan the viewport to make the window
5131         * the has popped up so the user knows that the context has changed.
5132         * Whether a screen magnification is performed is controlled by
5133         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
5134         *
5135         * @hide
5136         */
5137        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
5138                "accessibility_display_magnification_auto_update";
5139
5140        /**
5141         * Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
5142         * modified from an AccessibilityService using the SoftKeyboardController.
5143         *
5144         * @hide
5145         */
5146        public static final String ACCESSIBILITY_SOFT_KEYBOARD_MODE =
5147                "accessibility_soft_keyboard_mode";
5148
5149        /**
5150         * Default soft keyboard behavior.
5151         *
5152         * @hide
5153         */
5154        public static final int SHOW_MODE_AUTO = 0;
5155
5156        /**
5157         * Soft keyboard is never shown.
5158         *
5159         * @hide
5160         */
5161        public static final int SHOW_MODE_HIDDEN = 1;
5162
5163        /**
5164         * Setting that specifies whether timed text (captions) should be
5165         * displayed in video content. Text display properties are controlled by
5166         * the following settings:
5167         * <ul>
5168         * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
5169         * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
5170         * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
5171         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
5172         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
5173         * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
5174         * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
5175         * </ul>
5176         *
5177         * @hide
5178         */
5179        public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
5180                "accessibility_captioning_enabled";
5181
5182        /**
5183         * Setting that specifies the language for captions as a locale string,
5184         * e.g. en_US.
5185         *
5186         * @see java.util.Locale#toString
5187         * @hide
5188         */
5189        public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
5190                "accessibility_captioning_locale";
5191
5192        /**
5193         * Integer property that specifies the preset style for captions, one
5194         * of:
5195         * <ul>
5196         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
5197         * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
5198         * </ul>
5199         *
5200         * @see java.util.Locale#toString
5201         * @hide
5202         */
5203        public static final String ACCESSIBILITY_CAPTIONING_PRESET =
5204                "accessibility_captioning_preset";
5205
5206        /**
5207         * Integer property that specifes the background color for captions as a
5208         * packed 32-bit color.
5209         *
5210         * @see android.graphics.Color#argb
5211         * @hide
5212         */
5213        public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
5214                "accessibility_captioning_background_color";
5215
5216        /**
5217         * Integer property that specifes the foreground color for captions as a
5218         * packed 32-bit color.
5219         *
5220         * @see android.graphics.Color#argb
5221         * @hide
5222         */
5223        public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
5224                "accessibility_captioning_foreground_color";
5225
5226        /**
5227         * Integer property that specifes the edge type for captions, one of:
5228         * <ul>
5229         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
5230         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
5231         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
5232         * </ul>
5233         *
5234         * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
5235         * @hide
5236         */
5237        public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
5238                "accessibility_captioning_edge_type";
5239
5240        /**
5241         * Integer property that specifes the edge color for captions as a
5242         * packed 32-bit color.
5243         *
5244         * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
5245         * @see android.graphics.Color#argb
5246         * @hide
5247         */
5248        public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
5249                "accessibility_captioning_edge_color";
5250
5251        /**
5252         * Integer property that specifes the window color for captions as a
5253         * packed 32-bit color.
5254         *
5255         * @see android.graphics.Color#argb
5256         * @hide
5257         */
5258        public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
5259                "accessibility_captioning_window_color";
5260
5261        /**
5262         * String property that specifies the typeface for captions, one of:
5263         * <ul>
5264         * <li>DEFAULT
5265         * <li>MONOSPACE
5266         * <li>SANS_SERIF
5267         * <li>SERIF
5268         * </ul>
5269         *
5270         * @see android.graphics.Typeface
5271         * @hide
5272         */
5273        public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
5274                "accessibility_captioning_typeface";
5275
5276        /**
5277         * Floating point property that specifies font scaling for captions.
5278         *
5279         * @hide
5280         */
5281        public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
5282                "accessibility_captioning_font_scale";
5283
5284        /**
5285         * Setting that specifies whether display color inversion is enabled.
5286         */
5287        public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
5288                "accessibility_display_inversion_enabled";
5289
5290        /**
5291         * Setting that specifies whether display color space adjustment is
5292         * enabled.
5293         *
5294         * @hide
5295         */
5296        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
5297                "accessibility_display_daltonizer_enabled";
5298
5299        /**
5300         * Integer property that specifies the type of color space adjustment to
5301         * perform. Valid values are defined in AccessibilityManager.
5302         *
5303         * @hide
5304         */
5305        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
5306                "accessibility_display_daltonizer";
5307
5308        /**
5309         * Float list that specifies the color matrix to apply to
5310         * the display. Valid values are defined in AccessibilityManager.
5311         *
5312         * @hide
5313         */
5314        public static final String ACCESSIBILITY_DISPLAY_COLOR_MATRIX =
5315                "accessibility_display_color_matrix";
5316
5317        /**
5318         * Setting that specifies whether automatic click when the mouse pointer stops moving is
5319         * enabled.
5320         *
5321         * @hide
5322         */
5323        public static final String ACCESSIBILITY_AUTOCLICK_ENABLED =
5324                "accessibility_autoclick_enabled";
5325
5326        /**
5327         * Integer setting specifying amount of time in ms the mouse pointer has to stay still
5328         * before performing click when {@link #ACCESSIBILITY_AUTOCLICK_ENABLED} is set.
5329         *
5330         * @see #ACCESSIBILITY_AUTOCLICK_ENABLED
5331         * @hide
5332         */
5333        public static final String ACCESSIBILITY_AUTOCLICK_DELAY =
5334                "accessibility_autoclick_delay";
5335
5336        /**
5337         * Whether or not larger size icons are used for the pointer of mouse/trackpad for
5338         * accessibility.
5339         * (0 = false, 1 = true)
5340         * @hide
5341         */
5342        public static final String ACCESSIBILITY_LARGE_POINTER_ICON =
5343                "accessibility_large_pointer_icon";
5344
5345        /**
5346         * The timeout for considering a press to be a long press in milliseconds.
5347         * @hide
5348         */
5349        public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";
5350
5351        /**
5352         * List of the enabled print services.
5353         *
5354         * N and beyond uses {@link #DISABLED_PRINT_SERVICES}. But this might be used in an upgrade
5355         * from pre-N.
5356         *
5357         * @hide
5358         */
5359        public static final String ENABLED_PRINT_SERVICES =
5360            "enabled_print_services";
5361
5362        /**
5363         * List of the disabled print services.
5364         *
5365         * @hide
5366         */
5367        public static final String DISABLED_PRINT_SERVICES =
5368            "disabled_print_services";
5369
5370        /**
5371         * The saved value for WindowManagerService.setForcedDisplayDensity()
5372         * formatted as a single integer representing DPI. If unset, then use
5373         * the real display density.
5374         *
5375         * @hide
5376         */
5377        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";
5378
5379        /**
5380         * Setting to always use the default text-to-speech settings regardless
5381         * of the application settings.
5382         * 1 = override application settings,
5383         * 0 = use application settings (if specified).
5384         *
5385         * @deprecated  The value of this setting is no longer respected by
5386         * the framework text to speech APIs as of the Ice Cream Sandwich release.
5387         */
5388        @Deprecated
5389        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
5390
5391        /**
5392         * Default text-to-speech engine speech rate. 100 = 1x
5393         */
5394        public static final String TTS_DEFAULT_RATE = "tts_default_rate";
5395
5396        /**
5397         * Default text-to-speech engine pitch. 100 = 1x
5398         */
5399        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
5400
5401        /**
5402         * Default text-to-speech engine.
5403         */
5404        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
5405
5406        /**
5407         * Default text-to-speech language.
5408         *
5409         * @deprecated this setting is no longer in use, as of the Ice Cream
5410         * Sandwich release. Apps should never need to read this setting directly,
5411         * instead can query the TextToSpeech framework classes for the default
5412         * locale. {@link TextToSpeech#getLanguage()}.
5413         */
5414        @Deprecated
5415        public static final String TTS_DEFAULT_LANG = "tts_default_lang";
5416
5417        /**
5418         * Default text-to-speech country.
5419         *
5420         * @deprecated this setting is no longer in use, as of the Ice Cream
5421         * Sandwich release. Apps should never need to read this setting directly,
5422         * instead can query the TextToSpeech framework classes for the default
5423         * locale. {@link TextToSpeech#getLanguage()}.
5424         */
5425        @Deprecated
5426        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
5427
5428        /**
5429         * Default text-to-speech locale variant.
5430         *
5431         * @deprecated this setting is no longer in use, as of the Ice Cream
5432         * Sandwich release. Apps should never need to read this setting directly,
5433         * instead can query the TextToSpeech framework classes for the
5434         * locale that is in use {@link TextToSpeech#getLanguage()}.
5435         */
5436        @Deprecated
5437        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
5438
5439        /**
5440         * Stores the default tts locales on a per engine basis. Stored as
5441         * a comma seperated list of values, each value being of the form
5442         * {@code engine_name:locale} for example,
5443         * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
5444         * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
5445         * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
5446         * setting directly, and can query the TextToSpeech framework classes
5447         * for the locale that is in use.
5448         *
5449         * @hide
5450         */
5451        public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";
5452
5453        /**
5454         * Space delimited list of plugin packages that are enabled.
5455         */
5456        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
5457
5458        /**
5459         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
5460         * instead.
5461         */
5462        @Deprecated
5463        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
5464                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
5465
5466        /**
5467         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
5468         * instead.
5469         */
5470        @Deprecated
5471        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
5472                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
5473
5474        /**
5475         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
5476         * instead.
5477         */
5478        @Deprecated
5479        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
5480                Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
5481
5482        /**
5483         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
5484         * instead.
5485         */
5486        @Deprecated
5487        public static final String WIFI_ON = Global.WIFI_ON;
5488
5489        /**
5490         * The acceptable packet loss percentage (range 0 - 100) before trying
5491         * another AP on the same network.
5492         * @deprecated This setting is not used.
5493         */
5494        @Deprecated
5495        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
5496                "wifi_watchdog_acceptable_packet_loss_percentage";
5497
5498        /**
5499         * The number of access points required for a network in order for the
5500         * watchdog to monitor it.
5501         * @deprecated This setting is not used.
5502         */
5503        @Deprecated
5504        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
5505
5506        /**
5507         * The delay between background checks.
5508         * @deprecated This setting is not used.
5509         */
5510        @Deprecated
5511        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
5512                "wifi_watchdog_background_check_delay_ms";
5513
5514        /**
5515         * Whether the Wi-Fi watchdog is enabled for background checking even
5516         * after it thinks the user has connected to a good access point.
5517         * @deprecated This setting is not used.
5518         */
5519        @Deprecated
5520        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
5521                "wifi_watchdog_background_check_enabled";
5522
5523        /**
5524         * The timeout for a background ping
5525         * @deprecated This setting is not used.
5526         */
5527        @Deprecated
5528        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
5529                "wifi_watchdog_background_check_timeout_ms";
5530
5531        /**
5532         * The number of initial pings to perform that *may* be ignored if they
5533         * fail. Again, if these fail, they will *not* be used in packet loss
5534         * calculation. For example, one network always seemed to time out for
5535         * the first couple pings, so this is set to 3 by default.
5536         * @deprecated This setting is not used.
5537         */
5538        @Deprecated
5539        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
5540            "wifi_watchdog_initial_ignored_ping_count";
5541
5542        /**
5543         * The maximum number of access points (per network) to attempt to test.
5544         * If this number is reached, the watchdog will no longer monitor the
5545         * initial connection state for the network. This is a safeguard for
5546         * networks containing multiple APs whose DNS does not respond to pings.
5547         * @deprecated This setting is not used.
5548         */
5549        @Deprecated
5550        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
5551
5552        /**
5553         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
5554         */
5555        @Deprecated
5556        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
5557
5558        /**
5559         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
5560         * @deprecated This setting is not used.
5561         */
5562        @Deprecated
5563        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
5564
5565        /**
5566         * The number of pings to test if an access point is a good connection.
5567         * @deprecated This setting is not used.
5568         */
5569        @Deprecated
5570        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
5571
5572        /**
5573         * The delay between pings.
5574         * @deprecated This setting is not used.
5575         */
5576        @Deprecated
5577        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
5578
5579        /**
5580         * The timeout per ping.
5581         * @deprecated This setting is not used.
5582         */
5583        @Deprecated
5584        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
5585
5586        /**
5587         * @deprecated Use
5588         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
5589         */
5590        @Deprecated
5591        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
5592
5593        /**
5594         * @deprecated Use
5595         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
5596         */
5597        @Deprecated
5598        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
5599                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
5600
5601        /**
5602         * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
5603         * the receivers of the PendingIntent an opportunity to make a new network request before
5604         * the Network satisfying the request is potentially removed.
5605         *
5606         * @hide
5607         */
5608        public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
5609                "connectivity_release_pending_intent_delay_ms";
5610
5611        /**
5612         * Whether background data usage is allowed.
5613         *
5614         * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
5615         *             availability of background data depends on several
5616         *             combined factors. When background data is unavailable,
5617         *             {@link ConnectivityManager#getActiveNetworkInfo()} will
5618         *             now appear disconnected.
5619         */
5620        @Deprecated
5621        public static final String BACKGROUND_DATA = "background_data";
5622
5623        /**
5624         * Origins for which browsers should allow geolocation by default.
5625         * The value is a space-separated list of origins.
5626         */
5627        public static final String ALLOWED_GEOLOCATION_ORIGINS
5628                = "allowed_geolocation_origins";
5629
5630        /**
5631         * The preferred TTY mode     0 = TTy Off, CDMA default
5632         *                            1 = TTY Full
5633         *                            2 = TTY HCO
5634         *                            3 = TTY VCO
5635         * @hide
5636         */
5637        public static final String PREFERRED_TTY_MODE =
5638                "preferred_tty_mode";
5639
5640        /**
5641         * Whether the enhanced voice privacy mode is enabled.
5642         * 0 = normal voice privacy
5643         * 1 = enhanced voice privacy
5644         * @hide
5645         */
5646        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
5647
5648        /**
5649         * Whether the TTY mode mode is enabled.
5650         * 0 = disabled
5651         * 1 = enabled
5652         * @hide
5653         */
5654        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
5655
5656        /**
5657         * Controls whether settings backup is enabled.
5658         * Type: int ( 0 = disabled, 1 = enabled )
5659         * @hide
5660         */
5661        public static final String BACKUP_ENABLED = "backup_enabled";
5662
5663        /**
5664         * Controls whether application data is automatically restored from backup
5665         * at install time.
5666         * Type: int ( 0 = disabled, 1 = enabled )
5667         * @hide
5668         */
5669        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
5670
5671        /**
5672         * Indicates whether settings backup has been fully provisioned.
5673         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
5674         * @hide
5675         */
5676        public static final String BACKUP_PROVISIONED = "backup_provisioned";
5677
5678        /**
5679         * Component of the transport to use for backup/restore.
5680         * @hide
5681         */
5682        public static final String BACKUP_TRANSPORT = "backup_transport";
5683
5684        /**
5685         * Version for which the setup wizard was last shown.  Bumped for
5686         * each release when there is new setup information to show.
5687         * @hide
5688         */
5689        public static final String LAST_SETUP_SHOWN = "last_setup_shown";
5690
5691        /**
5692         * The interval in milliseconds after which Wi-Fi is considered idle.
5693         * When idle, it is possible for the device to be switched from Wi-Fi to
5694         * the mobile data network.
5695         * @hide
5696         * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
5697         * instead.
5698         */
5699        @Deprecated
5700        public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;
5701
5702        /**
5703         * The global search provider chosen by the user (if multiple global
5704         * search providers are installed). This will be the provider returned
5705         * by {@link SearchManager#getGlobalSearchActivity()} if it's still
5706         * installed. This setting is stored as a flattened component name as
5707         * per {@link ComponentName#flattenToString()}.
5708         *
5709         * @hide
5710         */
5711        public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
5712                "search_global_search_activity";
5713
5714        /**
5715         * The number of promoted sources in GlobalSearch.
5716         * @hide
5717         */
5718        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
5719        /**
5720         * The maximum number of suggestions returned by GlobalSearch.
5721         * @hide
5722         */
5723        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
5724        /**
5725         * The number of suggestions GlobalSearch will ask each non-web search source for.
5726         * @hide
5727         */
5728        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
5729        /**
5730         * The number of suggestions the GlobalSearch will ask the web search source for.
5731         * @hide
5732         */
5733        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
5734                "search_web_results_override_limit";
5735        /**
5736         * The number of milliseconds that GlobalSearch will wait for suggestions from
5737         * promoted sources before continuing with all other sources.
5738         * @hide
5739         */
5740        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
5741                "search_promoted_source_deadline_millis";
5742        /**
5743         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
5744         * @hide
5745         */
5746        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
5747        /**
5748         * The maximum number of milliseconds that GlobalSearch shows the previous results
5749         * after receiving a new query.
5750         * @hide
5751         */
5752        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
5753        /**
5754         * The maximum age of log data used for shortcuts in GlobalSearch.
5755         * @hide
5756         */
5757        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
5758        /**
5759         * The maximum age of log data used for source ranking in GlobalSearch.
5760         * @hide
5761         */
5762        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
5763                "search_max_source_event_age_millis";
5764        /**
5765         * The minimum number of impressions needed to rank a source in GlobalSearch.
5766         * @hide
5767         */
5768        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
5769                "search_min_impressions_for_source_ranking";
5770        /**
5771         * The minimum number of clicks needed to rank a source in GlobalSearch.
5772         * @hide
5773         */
5774        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
5775                "search_min_clicks_for_source_ranking";
5776        /**
5777         * The maximum number of shortcuts shown by GlobalSearch.
5778         * @hide
5779         */
5780        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
5781        /**
5782         * The size of the core thread pool for suggestion queries in GlobalSearch.
5783         * @hide
5784         */
5785        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
5786                "search_query_thread_core_pool_size";
5787        /**
5788         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
5789         * @hide
5790         */
5791        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
5792                "search_query_thread_max_pool_size";
5793        /**
5794         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
5795         * @hide
5796         */
5797        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
5798                "search_shortcut_refresh_core_pool_size";
5799        /**
5800         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
5801         * @hide
5802         */
5803        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
5804                "search_shortcut_refresh_max_pool_size";
5805        /**
5806         * The maximun time that excess threads in the GlobalSeach thread pools will
5807         * wait before terminating.
5808         * @hide
5809         */
5810        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
5811                "search_thread_keepalive_seconds";
5812        /**
5813         * The maximum number of concurrent suggestion queries to each source.
5814         * @hide
5815         */
5816        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
5817                "search_per_source_concurrent_query_limit";
5818
5819        /**
5820         * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
5821         * @hide
5822         */
5823        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
5824
5825        /**
5826         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
5827         * @hide
5828         */
5829        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
5830
5831        /**
5832         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
5833         * @hide
5834         */
5835        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
5836
5837        /**
5838         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
5839         * @hide
5840         */
5841        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
5842
5843        /**
5844         * If nonzero, ANRs in invisible background processes bring up a dialog.
5845         * Otherwise, the process will be silently killed.
5846         * @hide
5847         */
5848        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
5849
5850        /**
5851         * The {@link ComponentName} string of the service to be used as the voice recognition
5852         * service.
5853         *
5854         * @hide
5855         */
5856        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
5857
5858        /**
5859         * Stores whether an user has consented to have apps verified through PAM.
5860         * The value is boolean (1 or 0).
5861         *
5862         * @hide
5863         */
5864        public static final String PACKAGE_VERIFIER_USER_CONSENT =
5865            "package_verifier_user_consent";
5866
5867        /**
5868         * The {@link ComponentName} string of the selected spell checker service which is
5869         * one of the services managed by the text service manager.
5870         *
5871         * @hide
5872         */
5873        public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";
5874
5875        /**
5876         * The {@link ComponentName} string of the selected subtype of the selected spell checker
5877         * service which is one of the services managed by the text service manager.
5878         *
5879         * @hide
5880         */
5881        public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
5882                "selected_spell_checker_subtype";
5883
5884        /**
5885         * The {@link ComponentName} string whether spell checker is enabled or not.
5886         *
5887         * @hide
5888         */
5889        public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";
5890
5891        /**
5892         * What happens when the user presses the Power button while in-call
5893         * and the screen is on.<br/>
5894         * <b>Values:</b><br/>
5895         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
5896         * 2 - The Power button hangs up the current call.<br/>
5897         *
5898         * @hide
5899         */
5900        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
5901
5902        /**
5903         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
5904         * @hide
5905         */
5906        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
5907
5908        /**
5909         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
5910         * @hide
5911         */
5912        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
5913
5914        /**
5915         * INCALL_POWER_BUTTON_BEHAVIOR default value.
5916         * @hide
5917         */
5918        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
5919                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
5920
5921        /**
5922         * Whether the device should wake when the wake gesture sensor detects motion.
5923         * @hide
5924         */
5925        public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";
5926
5927        /**
5928         * Whether the device should doze if configured.
5929         * @hide
5930         */
5931        public static final String DOZE_ENABLED = "doze_enabled";
5932
5933        /**
5934         * The current night mode that has been selected by the user.  Owned
5935         * and controlled by UiModeManagerService.  Constants are as per
5936         * UiModeManager.
5937         * @hide
5938         */
5939        public static final String UI_NIGHT_MODE = "ui_night_mode";
5940
5941        /**
5942         * Whether screensavers are enabled.
5943         * @hide
5944         */
5945        public static final String SCREENSAVER_ENABLED = "screensaver_enabled";
5946
5947        /**
5948         * The user's chosen screensaver components.
5949         *
5950         * These will be launched by the PhoneWindowManager after a timeout when not on
5951         * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
5952         * @hide
5953         */
5954        public static final String SCREENSAVER_COMPONENTS = "screensaver_components";
5955
5956        /**
5957         * If screensavers are enabled, whether the screensaver should be automatically launched
5958         * when the device is inserted into a (desk) dock.
5959         * @hide
5960         */
5961        public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";
5962
5963        /**
5964         * If screensavers are enabled, whether the screensaver should be automatically launched
5965         * when the screen times out when not on battery.
5966         * @hide
5967         */
5968        public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";
5969
5970        /**
5971         * If screensavers are enabled, the default screensaver component.
5972         * @hide
5973         */
5974        public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";
5975
5976        /**
5977         * The default NFC payment component
5978         * @hide
5979         */
5980        public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";
5981
5982        /**
5983         * Whether NFC payment is handled by the foreground application or a default.
5984         * @hide
5985         */
5986        public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";
5987
5988        /**
5989         * Specifies the package name currently configured to be the primary sms application
5990         * @hide
5991         */
5992        public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";
5993
5994        /**
5995         * Specifies the package name currently configured to be the default dialer application
5996         * @hide
5997         */
5998        public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";
5999
6000        /**
6001         * Specifies the package name currently configured to be the emergency assistance application
6002         *
6003         * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
6004         *
6005         * @hide
6006         */
6007        public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";
6008
6009        /**
6010         * Specifies whether the current app context on scren (assist data) will be sent to the
6011         * assist application (active voice interaction service).
6012         *
6013         * @hide
6014         */
6015        public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";
6016
6017        /**
6018         * Specifies whether a screenshot of the screen contents will be sent to the assist
6019         * application (active voice interaction service).
6020         *
6021         * @hide
6022         */
6023        public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";
6024
6025        /**
6026         * Names of the service components that the current user has explicitly allowed to
6027         * see all of the user's notifications, separated by ':'.
6028         *
6029         * @hide
6030         */
6031        public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
6032
6033        /**
6034         * Names of the packages that the current user has explicitly allowed to
6035         * manage notification policy configuration, separated by ':'.
6036         *
6037         * @hide
6038         */
6039        @TestApi
6040        public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
6041                "enabled_notification_policy_access_packages";
6042
6043        /** @hide */
6044        public static final String BAR_SERVICE_COMPONENT = "bar_service_component";
6045
6046        /** @hide */
6047        public static final String VOLUME_CONTROLLER_SERVICE_COMPONENT
6048                = "volume_controller_service_component";
6049
6050        /** @hide */
6051        public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";
6052
6053        /**
6054         * This is the query URI for finding a print service to install.
6055         *
6056         * @hide
6057         */
6058        public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";
6059
6060        /**
6061         * This is the query URI for finding a NFC payment service to install.
6062         *
6063         * @hide
6064         */
6065        public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";
6066
6067        /**
6068         * If enabled, apps should try to skip any introductory hints on first launch. This might
6069         * apply to users that are already familiar with the environment or temporary users.
6070         * <p>
6071         * Type : int (0 to show hints, 1 to skip showing hints)
6072         */
6073        public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";
6074
6075        /**
6076         * Persisted playback time after a user confirmation of an unsafe volume level.
6077         *
6078         * @hide
6079         */
6080        public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";
6081
6082        /**
6083         * This preference enables notification display on the lockscreen.
6084         * @hide
6085         */
6086        public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
6087                "lock_screen_show_notifications";
6088
6089        /**
6090         * List of TV inputs that are currently hidden. This is a string
6091         * containing the IDs of all hidden TV inputs. Each ID is encoded by
6092         * {@link android.net.Uri#encode(String)} and separated by ':'.
6093         * @hide
6094         */
6095        public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";
6096
6097        /**
6098         * List of custom TV input labels. This is a string containing <TV input id, custom name>
6099         * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
6100         * and separated by ','. Each pair is separated by ':'.
6101         * @hide
6102         */
6103        public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";
6104
6105        /**
6106         * Whether automatic routing of system audio to USB audio peripheral is disabled.
6107         * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
6108         * and 0 means automatic routing is enabled.
6109         *
6110         * @hide
6111         */
6112        public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
6113                "usb_audio_automatic_routing_disabled";
6114
6115        /**
6116         * The timeout in milliseconds before the device fully goes to sleep after
6117         * a period of inactivity.  This value sets an upper bound on how long the device
6118         * will stay awake or dreaming without user activity.  It should generally
6119         * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
6120         * will sleep before it ever has a chance to dream.
6121         * <p>
6122         * Use -1 to disable this timeout.
6123         * </p>
6124         *
6125         * @hide
6126         */
6127        public static final String SLEEP_TIMEOUT = "sleep_timeout";
6128
6129        /**
6130         * Controls whether double tap to wake is enabled.
6131         * @hide
6132         */
6133        public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";
6134
6135        /**
6136         * The current assistant component. It could be a voice interaction service,
6137         * or an activity that handles ACTION_ASSIST, or empty which means using the default
6138         * handling.
6139         *
6140         * @hide
6141         */
6142        public static final String ASSISTANT = "assistant";
6143
6144        /**
6145         * Whether the camera launch gesture should be disabled.
6146         *
6147         * @hide
6148         */
6149        public static final String CAMERA_GESTURE_DISABLED = "camera_gesture_disabled";
6150
6151        /**
6152         * Whether the camera launch gesture to double tap the power button when the screen is off
6153         * should be disabled.
6154         *
6155         * @hide
6156         */
6157        public static final String CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED =
6158                "camera_double_tap_power_gesture_disabled";
6159
6160        /**
6161
6162        /**
6163         * Behavior of twilight on the device.
6164         * One of {@link #TWILIGHT_MODE_LOCKED_OFF}, {@link #TWILIGHT_MODE_LOCKED_ON}
6165         * or {@link #TWILIGHT_MODE_AUTO}.
6166         * @hide
6167         */
6168        public static final String TWILIGHT_MODE = "twilight_mode";
6169
6170        /**
6171         * Twilight mode always off.
6172         * @hide
6173         */
6174        public static final int TWILIGHT_MODE_LOCKED_OFF = 0;
6175
6176        /**
6177         * Twilight mode always on.
6178         * @hide
6179         */
6180        public static final int TWILIGHT_MODE_LOCKED_ON = 1;
6181
6182        /**
6183         * Twilight mode auto.
6184         * @hide
6185         */
6186        public static final int TWILIGHT_MODE_AUTO = 2;
6187
6188        /**
6189         * Twilight mode auto, temporarily overriden to on.
6190         * @hide
6191         */
6192        public static final int TWILIGHT_MODE_AUTO_OVERRIDE_OFF = 3;
6193
6194        /**
6195         * Twilight mode auto, temporarily overriden to off.
6196         * @hide
6197         */
6198        public static final int TWILIGHT_MODE_AUTO_OVERRIDE_ON = 4;
6199
6200        /**
6201         * Whether brightness should automatically adjust based on twilight state.
6202         * @hide
6203         */
6204        public static final String BRIGHTNESS_USE_TWILIGHT = "brightness_use_twilight";
6205
6206        /**
6207         * Names of the service components that the current user has explicitly allowed to
6208         * be a VR mode listener, separated by ':'.
6209         *
6210         * @hide
6211         */
6212        public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners";
6213
6214        /**
6215         * Behavior of the display while in VR mode.
6216         *
6217         * One of {@link #VR_DISPLAY_MODE_LOW_PERSISTENCE} or {@link #VR_DISPLAY_MODE_OFF}.
6218         *
6219         * @hide
6220         */
6221        public static final String VR_DISPLAY_MODE = "vr_display_mode";
6222
6223        /**
6224         * Lower the display persistence while the system is in VR mode.
6225         *
6226         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6227         *
6228         * @hide.
6229         */
6230        public static final int VR_DISPLAY_MODE_LOW_PERSISTENCE = 0;
6231
6232        /**
6233         * Do not alter the display persistence while the system is in VR mode.
6234         *
6235         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
6236         *
6237         * @hide.
6238         */
6239        public static final int VR_DISPLAY_MODE_OFF = 1;
6240
6241        /**
6242         * Whether parent user can access remote contact in managed profile.
6243         *
6244         * @hide
6245         */
6246        public static final String MANAGED_PROFILE_CONTACT_REMOTE_SEARCH =
6247                "managed_profile_contact_remote_search";
6248
6249        /**
6250         * Whether or not the automatic storage manager is enabled and should run on the device.
6251         *
6252         * @hide
6253         */
6254        public static final String AUTOMATIC_STORAGE_MANAGER_ENABLED =
6255                "automatic_storage_manager_enabled";
6256
6257        /**
6258         * How many days of information for the automatic storage manager to retain on the device.
6259         *
6260         * @hide
6261         */
6262        public static final String AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN =
6263                "automatic_storage_manager_days_to_retain";
6264
6265        /**
6266         * Default number of days of information for the automatic storage manager to retain.
6267         *
6268         * @hide
6269         */
6270        public static final int AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_DEFAULT = 90;
6271
6272        /**
6273         * How many bytes the automatic storage manager has cleared out.
6274         *
6275         * @hide
6276         */
6277        public static final String AUTOMATIC_STORAGE_MANAGER_BYTES_CLEARED =
6278                "automatic_storage_manager_bytes_cleared";
6279
6280
6281        /**
6282         * Last run time for the automatic storage manager.
6283         *
6284         * @hide
6285         */
6286        public static final String AUTOMATIC_STORAGE_MANAGER_LAST_RUN =
6287                "automatic_storage_manager_last_run";
6288
6289
6290        /**
6291         * This are the settings to be backed up.
6292         *
6293         * NOTE: Settings are backed up and restored in the order they appear
6294         *       in this array. If you have one setting depending on another,
6295         *       make sure that they are ordered appropriately.
6296         *
6297         * @hide
6298         */
6299        public static final String[] SETTINGS_TO_BACKUP = {
6300            BUGREPORT_IN_POWER_MENU,                            // moved to global
6301            ALLOW_MOCK_LOCATION,
6302            PARENTAL_CONTROL_ENABLED,
6303            PARENTAL_CONTROL_REDIRECT_URL,
6304            USB_MASS_STORAGE_ENABLED,                           // moved to global
6305            ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
6306            ACCESSIBILITY_DISPLAY_DALTONIZER,
6307            ACCESSIBILITY_DISPLAY_COLOR_MATRIX,
6308            ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
6309            ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
6310            ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
6311            ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE,
6312            ACCESSIBILITY_SCRIPT_INJECTION,
6313            ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS,
6314            ENABLED_ACCESSIBILITY_SERVICES,
6315            ENABLED_NOTIFICATION_LISTENERS,
6316            ENABLED_VR_LISTENERS,
6317            ENABLED_INPUT_METHODS,
6318            TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
6319            TOUCH_EXPLORATION_ENABLED,
6320            ACCESSIBILITY_ENABLED,
6321            ACCESSIBILITY_SPEAK_PASSWORD,
6322            ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
6323            ACCESSIBILITY_CAPTIONING_PRESET,
6324            ACCESSIBILITY_CAPTIONING_ENABLED,
6325            ACCESSIBILITY_CAPTIONING_LOCALE,
6326            ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
6327            ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
6328            ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
6329            ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
6330            ACCESSIBILITY_CAPTIONING_TYPEFACE,
6331            ACCESSIBILITY_CAPTIONING_FONT_SCALE,
6332            ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
6333            TTS_USE_DEFAULTS,
6334            TTS_DEFAULT_RATE,
6335            TTS_DEFAULT_PITCH,
6336            TTS_DEFAULT_SYNTH,
6337            TTS_DEFAULT_LANG,
6338            TTS_DEFAULT_COUNTRY,
6339            TTS_ENABLED_PLUGINS,
6340            TTS_DEFAULT_LOCALE,
6341            SHOW_IME_WITH_HARD_KEYBOARD,
6342            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
6343            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
6344            WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
6345            SELECTED_SPELL_CHECKER,
6346            SELECTED_SPELL_CHECKER_SUBTYPE,
6347            SPELL_CHECKER_ENABLED,
6348            MOUNT_PLAY_NOTIFICATION_SND,
6349            MOUNT_UMS_AUTOSTART,
6350            MOUNT_UMS_PROMPT,
6351            MOUNT_UMS_NOTIFY_ENABLED,
6352            SLEEP_TIMEOUT,
6353            DOUBLE_TAP_TO_WAKE,
6354            WAKE_GESTURE_ENABLED,
6355            LONG_PRESS_TIMEOUT,
6356            CAMERA_GESTURE_DISABLED,
6357            ACCESSIBILITY_AUTOCLICK_ENABLED,
6358            ACCESSIBILITY_AUTOCLICK_DELAY,
6359            ACCESSIBILITY_LARGE_POINTER_ICON,
6360            PREFERRED_TTY_MODE,
6361            ENHANCED_VOICE_PRIVACY_ENABLED,
6362            TTY_MODE_ENABLED,
6363            INCALL_POWER_BUTTON_BEHAVIOR
6364        };
6365
6366        /**
6367         * These entries are considered common between the personal and the managed profile,
6368         * since the managed profile doesn't get to change them.
6369         */
6370        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
6371
6372        static {
6373            CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
6374            CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
6375            CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
6376            CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
6377            CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
6378            CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
6379            CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
6380            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PREVIOUS_MODE);
6381            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
6382            CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
6383            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
6384            CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
6385        }
6386
6387        /** @hide */
6388        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
6389            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
6390        }
6391
6392        /**
6393         * Helper method for determining if a location provider is enabled.
6394         *
6395         * @param cr the content resolver to use
6396         * @param provider the location provider to query
6397         * @return true if the provider is enabled
6398         *
6399         * @deprecated use {@link #LOCATION_MODE} or
6400         *             {@link LocationManager#isProviderEnabled(String)}
6401         */
6402        @Deprecated
6403        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
6404            return isLocationProviderEnabledForUser(cr, provider, UserHandle.myUserId());
6405        }
6406
6407        /**
6408         * Helper method for determining if a location provider is enabled.
6409         * @param cr the content resolver to use
6410         * @param provider the location provider to query
6411         * @param userId the userId to query
6412         * @return true if the provider is enabled
6413         * @deprecated use {@link #LOCATION_MODE} or
6414         *             {@link LocationManager#isProviderEnabled(String)}
6415         * @hide
6416         */
6417        @Deprecated
6418        public static final boolean isLocationProviderEnabledForUser(ContentResolver cr, String provider, int userId) {
6419            String allowedProviders = Settings.Secure.getStringForUser(cr,
6420                    LOCATION_PROVIDERS_ALLOWED, userId);
6421            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
6422        }
6423
6424        /**
6425         * Thread-safe method for enabling or disabling a single location provider.
6426         * @param cr the content resolver to use
6427         * @param provider the location provider to enable or disable
6428         * @param enabled true if the provider should be enabled
6429         * @deprecated use {@link #putInt(ContentResolver, String, int)} and {@link #LOCATION_MODE}
6430         */
6431        @Deprecated
6432        public static final void setLocationProviderEnabled(ContentResolver cr,
6433                String provider, boolean enabled) {
6434            setLocationProviderEnabledForUser(cr, provider, enabled, UserHandle.myUserId());
6435        }
6436
6437        /**
6438         * Thread-safe method for enabling or disabling a single location provider.
6439         *
6440         * @param cr the content resolver to use
6441         * @param provider the location provider to enable or disable
6442         * @param enabled true if the provider should be enabled
6443         * @param userId the userId for which to enable/disable providers
6444         * @return true if the value was set, false on database errors
6445         * @deprecated use {@link #putIntForUser(ContentResolver, String, int, int)} and
6446         *             {@link #LOCATION_MODE}
6447         * @hide
6448         */
6449        @Deprecated
6450        public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
6451                String provider, boolean enabled, int userId) {
6452            synchronized (mLocationSettingsLock) {
6453                // to ensure thread safety, we write the provider name with a '+' or '-'
6454                // and let the SettingsProvider handle it rather than reading and modifying
6455                // the list of enabled providers.
6456                if (enabled) {
6457                    provider = "+" + provider;
6458                } else {
6459                    provider = "-" + provider;
6460                }
6461                return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
6462                        userId);
6463            }
6464        }
6465
6466        /**
6467         * Saves the current location mode into {@link #LOCATION_PREVIOUS_MODE}.
6468         */
6469        private static final boolean saveLocationModeForUser(ContentResolver cr, int userId) {
6470            final int mode = getLocationModeForUser(cr, userId);
6471            return putIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE, mode, userId);
6472        }
6473
6474        /**
6475         * Restores the current location mode from {@link #LOCATION_PREVIOUS_MODE}.
6476         */
6477        private static final boolean restoreLocationModeForUser(ContentResolver cr, int userId) {
6478            int mode = getIntForUser(cr, Settings.Secure.LOCATION_PREVIOUS_MODE,
6479                    LOCATION_MODE_HIGH_ACCURACY, userId);
6480            // Make sure that the previous mode is never "off". Otherwise the user won't be able to
6481            // turn on location any longer.
6482            if (mode == LOCATION_MODE_OFF) {
6483                mode = LOCATION_MODE_HIGH_ACCURACY;
6484            }
6485            return setLocationModeForUser(cr, mode, userId);
6486        }
6487
6488        /**
6489         * Thread-safe method for setting the location mode to one of
6490         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
6491         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
6492         *
6493         * @param cr the content resolver to use
6494         * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
6495         * @param userId the userId for which to change mode
6496         * @return true if the value was set, false on database errors
6497         *
6498         * @throws IllegalArgumentException if mode is not one of the supported values
6499         */
6500        private static final boolean setLocationModeForUser(ContentResolver cr, int mode,
6501                int userId) {
6502            synchronized (mLocationSettingsLock) {
6503                boolean gps = false;
6504                boolean network = false;
6505                switch (mode) {
6506                    case LOCATION_MODE_PREVIOUS:
6507                        // Retrieve the actual mode and set to that mode.
6508                        return restoreLocationModeForUser(cr, userId);
6509                    case LOCATION_MODE_OFF:
6510                        saveLocationModeForUser(cr, userId);
6511                        break;
6512                    case LOCATION_MODE_SENSORS_ONLY:
6513                        gps = true;
6514                        break;
6515                    case LOCATION_MODE_BATTERY_SAVING:
6516                        network = true;
6517                        break;
6518                    case LOCATION_MODE_HIGH_ACCURACY:
6519                        gps = true;
6520                        network = true;
6521                        break;
6522                    default:
6523                        throw new IllegalArgumentException("Invalid location mode: " + mode);
6524                }
6525                // Note it's important that we set the NLP mode first. The Google implementation
6526                // of NLP clears its NLP consent setting any time it receives a
6527                // LocationManager.PROVIDERS_CHANGED_ACTION broadcast and NLP is disabled. Also,
6528                // it shows an NLP consent dialog any time it receives the broadcast, NLP is
6529                // enabled, and the NLP consent is not set. If 1) we were to enable GPS first,
6530                // 2) a setup wizard has its own NLP consent UI that sets the NLP consent setting,
6531                // and 3) the receiver happened to complete before we enabled NLP, then the Google
6532                // NLP would detect the attempt to enable NLP and show a redundant NLP consent
6533                // dialog. Then the people who wrote the setup wizard would be sad.
6534                boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
6535                        cr, LocationManager.NETWORK_PROVIDER, network, userId);
6536                boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
6537                        cr, LocationManager.GPS_PROVIDER, gps, userId);
6538                return gpsSuccess && nlpSuccess;
6539            }
6540        }
6541
6542        /**
6543         * Thread-safe method for reading the location mode, returns one of
6544         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
6545         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
6546         *
6547         * @param cr the content resolver to use
6548         * @param userId the userId for which to read the mode
6549         * @return the location mode
6550         */
6551        private static final int getLocationModeForUser(ContentResolver cr, int userId) {
6552            synchronized (mLocationSettingsLock) {
6553                boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
6554                        cr, LocationManager.GPS_PROVIDER, userId);
6555                boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
6556                        cr, LocationManager.NETWORK_PROVIDER, userId);
6557                if (gpsEnabled && networkEnabled) {
6558                    return LOCATION_MODE_HIGH_ACCURACY;
6559                } else if (gpsEnabled) {
6560                    return LOCATION_MODE_SENSORS_ONLY;
6561                } else if (networkEnabled) {
6562                    return LOCATION_MODE_BATTERY_SAVING;
6563                } else {
6564                    return LOCATION_MODE_OFF;
6565                }
6566            }
6567        }
6568    }
6569
6570    /**
6571     * Global system settings, containing preferences that always apply identically
6572     * to all defined users.  Applications can read these but are not allowed to write;
6573     * like the "Secure" settings, these are for preferences that the user must
6574     * explicitly modify through the system UI or specialized APIs for those values.
6575     */
6576    public static final class Global extends NameValueTable {
6577        /**
6578         * The content:// style URL for global secure settings items.  Not public.
6579         */
6580        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");
6581
6582        /**
6583         * Whether users are allowed to add more users or guest from lockscreen.
6584         * <p>
6585         * Type: int
6586         * @hide
6587         */
6588        public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";
6589
6590        /**
6591         * Setting whether the global gesture for enabling accessibility is enabled.
6592         * If this gesture is enabled the user will be able to perfrom it to enable
6593         * the accessibility state without visiting the settings app.
6594         * @hide
6595         */
6596        public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
6597                "enable_accessibility_global_gesture_enabled";
6598
6599        /**
6600         * Whether Airplane Mode is on.
6601         */
6602        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
6603
6604        /**
6605         * Whether Theater Mode is on.
6606         * {@hide}
6607         */
6608        @SystemApi
6609        public static final String THEATER_MODE_ON = "theater_mode_on";
6610
6611        /**
6612         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
6613         */
6614        public static final String RADIO_BLUETOOTH = "bluetooth";
6615
6616        /**
6617         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
6618         */
6619        public static final String RADIO_WIFI = "wifi";
6620
6621        /**
6622         * {@hide}
6623         */
6624        public static final String RADIO_WIMAX = "wimax";
6625        /**
6626         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
6627         */
6628        public static final String RADIO_CELL = "cell";
6629
6630        /**
6631         * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
6632         */
6633        public static final String RADIO_NFC = "nfc";
6634
6635        /**
6636         * A comma separated list of radios that need to be disabled when airplane mode
6637         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
6638         * included in the comma separated list.
6639         */
6640        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
6641
6642        /**
6643         * A comma separated list of radios that should to be disabled when airplane mode
6644         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
6645         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
6646         * will be turned off when entering airplane mode, but the user will be able to reenable
6647         * Wifi in the Settings app.
6648         *
6649         * {@hide}
6650         */
6651        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
6652
6653        /**
6654         * A Long representing a bitmap of profiles that should be disabled when bluetooth starts.
6655         * See {@link android.bluetooth.BluetoothProfile}.
6656         * {@hide}
6657         */
6658        public static final String BLUETOOTH_DISABLED_PROFILES = "bluetooth_disabled_profiles";
6659
6660        /**
6661         * A semi-colon separated list of Bluetooth interoperability workarounds.
6662         * Each entry is a partial Bluetooth device address string and an integer representing
6663         * the feature to be disabled, separated by a comma. The integer must correspond
6664         * to a interoperability feature as defined in "interop.h" in /system/bt.
6665         * <p>
6666         * Example: <br/>
6667         *   "00:11:22,0;01:02:03:04,2"
6668         * @hide
6669         */
6670       public static final String BLUETOOTH_INTEROPERABILITY_LIST = "bluetooth_interoperability_list";
6671
6672        /**
6673         * The policy for deciding when Wi-Fi should go to sleep (which will in
6674         * turn switch to using the mobile data as an Internet connection).
6675         * <p>
6676         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
6677         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
6678         * {@link #WIFI_SLEEP_POLICY_NEVER}.
6679         */
6680        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
6681
6682        /**
6683         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
6684         * policy, which is to sleep shortly after the turning off
6685         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
6686         */
6687        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
6688
6689        /**
6690         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
6691         * the device is on battery, and never go to sleep when the device is
6692         * plugged in.
6693         */
6694        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
6695
6696        /**
6697         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
6698         */
6699        public static final int WIFI_SLEEP_POLICY_NEVER = 2;
6700
6701        /**
6702         * Value to specify if the user prefers the date, time and time zone
6703         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
6704         */
6705        public static final String AUTO_TIME = "auto_time";
6706
6707        /**
6708         * Value to specify if the user prefers the time zone
6709         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
6710         */
6711        public static final String AUTO_TIME_ZONE = "auto_time_zone";
6712
6713        /**
6714         * URI for the car dock "in" event sound.
6715         * @hide
6716         */
6717        public static final String CAR_DOCK_SOUND = "car_dock_sound";
6718
6719        /**
6720         * URI for the car dock "out" event sound.
6721         * @hide
6722         */
6723        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
6724
6725        /**
6726         * URI for the desk dock "in" event sound.
6727         * @hide
6728         */
6729        public static final String DESK_DOCK_SOUND = "desk_dock_sound";
6730
6731        /**
6732         * URI for the desk dock "out" event sound.
6733         * @hide
6734         */
6735        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
6736
6737        /**
6738         * Whether to play a sound for dock events.
6739         * @hide
6740         */
6741        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
6742
6743        /**
6744         * URI for the "device locked" (keyguard shown) sound.
6745         * @hide
6746         */
6747        public static final String LOCK_SOUND = "lock_sound";
6748
6749        /**
6750         * URI for the "device unlocked" sound.
6751         * @hide
6752         */
6753        public static final String UNLOCK_SOUND = "unlock_sound";
6754
6755        /**
6756         * URI for the "device is trusted" sound, which is played when the device enters the trusted
6757         * state without unlocking.
6758         * @hide
6759         */
6760        public static final String TRUSTED_SOUND = "trusted_sound";
6761
6762        /**
6763         * URI for the low battery sound file.
6764         * @hide
6765         */
6766        public static final String LOW_BATTERY_SOUND = "low_battery_sound";
6767
6768        /**
6769         * Whether to play a sound for low-battery alerts.
6770         * @hide
6771         */
6772        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
6773
6774        /**
6775         * URI for the "wireless charging started" sound.
6776         * @hide
6777         */
6778        public static final String WIRELESS_CHARGING_STARTED_SOUND =
6779                "wireless_charging_started_sound";
6780
6781        /**
6782         * Whether to play a sound for charging events.
6783         * @hide
6784         */
6785        public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";
6786
6787        /**
6788         * Whether we keep the device on while the device is plugged in.
6789         * Supported values are:
6790         * <ul>
6791         * <li>{@code 0} to never stay on while plugged in</li>
6792         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
6793         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
6794         * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
6795         * </ul>
6796         * These values can be OR-ed together.
6797         */
6798        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
6799
6800        /**
6801         * When the user has enable the option to have a "bug report" command
6802         * in the power menu.
6803         * @hide
6804         */
6805        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
6806
6807        /**
6808         * Whether ADB is enabled.
6809         */
6810        public static final String ADB_ENABLED = "adb_enabled";
6811
6812        /**
6813         * Whether Views are allowed to save their attribute data.
6814         * @hide
6815         */
6816        public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";
6817
6818        /**
6819         * Whether assisted GPS should be enabled or not.
6820         * @hide
6821         */
6822        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
6823
6824        /**
6825         * Whether bluetooth is enabled/disabled
6826         * 0=disabled. 1=enabled.
6827         */
6828        public static final String BLUETOOTH_ON = "bluetooth_on";
6829
6830        /**
6831         * CDMA Cell Broadcast SMS
6832         *                            0 = CDMA Cell Broadcast SMS disabled
6833         *                            1 = CDMA Cell Broadcast SMS enabled
6834         * @hide
6835         */
6836        public static final String CDMA_CELL_BROADCAST_SMS =
6837                "cdma_cell_broadcast_sms";
6838
6839        /**
6840         * The CDMA roaming mode 0 = Home Networks, CDMA default
6841         *                       1 = Roaming on Affiliated networks
6842         *                       2 = Roaming on any networks
6843         * @hide
6844         */
6845        public static final String CDMA_ROAMING_MODE = "roaming_settings";
6846
6847        /**
6848         * The CDMA subscription mode 0 = RUIM/SIM (default)
6849         *                                1 = NV
6850         * @hide
6851         */
6852        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
6853
6854        /** Inactivity timeout to track mobile data activity.
6855        *
6856        * If set to a positive integer, it indicates the inactivity timeout value in seconds to
6857        * infer the data activity of mobile network. After a period of no activity on mobile
6858        * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
6859        * intent is fired to indicate a transition of network status from "active" to "idle". Any
6860        * subsequent activity on mobile networks triggers the firing of {@code
6861        * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
6862        *
6863        * Network activity refers to transmitting or receiving data on the network interfaces.
6864        *
6865        * Tracking is disabled if set to zero or negative value.
6866        *
6867        * @hide
6868        */
6869       public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";
6870
6871       /** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
6872        * but for Wifi network.
6873        * @hide
6874        */
6875       public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";
6876
6877       /**
6878        * Whether or not data roaming is enabled. (0 = false, 1 = true)
6879        */
6880       public static final String DATA_ROAMING = "data_roaming";
6881
6882       /**
6883        * The value passed to a Mobile DataConnection via bringUp which defines the
6884        * number of retries to preform when setting up the initial connection. The default
6885        * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
6886        * @hide
6887        */
6888       public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";
6889
6890       /**
6891        * Whether any package can be on external storage. When this is true, any
6892        * package, regardless of manifest values, is a candidate for installing
6893        * or moving onto external storage. (0 = false, 1 = true)
6894        * @hide
6895        */
6896       public static final String FORCE_ALLOW_ON_EXTERNAL = "force_allow_on_external";
6897
6898        /**
6899         * Whether any activity can be resized. When this is true, any
6900         * activity, regardless of manifest values, can be resized for multi-window.
6901         * (0 = false, 1 = true)
6902         * @hide
6903         */
6904        public static final String DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES
6905                = "force_resizable_activities";
6906
6907        /**
6908         * Whether to enable experimental freeform support for windows.
6909         * @hide
6910         */
6911        public static final String DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT
6912                = "enable_freeform_support";
6913
6914       /**
6915        * Whether user has enabled development settings.
6916        */
6917       public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";
6918
6919       /**
6920        * Whether the device has been provisioned (0 = false, 1 = true).
6921        * <p>On a multiuser device with a separate system user, the screen may be locked
6922        * as soon as this is set to true and further activities cannot be launched on the
6923        * system user unless they are marked to show over keyguard.
6924        */
6925       public static final String DEVICE_PROVISIONED = "device_provisioned";
6926
6927       /**
6928        * Whether mobile data should be allowed while the device is being provisioned.
6929        * This allows the provisioning process to turn off mobile data before the user
6930        * has an opportunity to set things up, preventing other processes from burning
6931        * precious bytes before wifi is setup.
6932        * (0 = false, 1 = true)
6933        * @hide
6934        */
6935       public static final String DEVICE_PROVISIONING_MOBILE_DATA_ENABLED =
6936               "device_provisioning_mobile_data";
6937
6938       /**
6939        * The saved value for WindowManagerService.setForcedDisplaySize().
6940        * Two integers separated by a comma.  If unset, then use the real display size.
6941        * @hide
6942        */
6943       public static final String DISPLAY_SIZE_FORCED = "display_size_forced";
6944
6945       /**
6946        * The saved value for WindowManagerService.setForcedDisplayScalingMode().
6947        * 0 or unset if scaling is automatic, 1 if scaling is disabled.
6948        * @hide
6949        */
6950       public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";
6951
6952       /**
6953        * The maximum size, in bytes, of a download that the download manager will transfer over
6954        * a non-wifi connection.
6955        * @hide
6956        */
6957       public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
6958               "download_manager_max_bytes_over_mobile";
6959
6960       /**
6961        * The recommended maximum size, in bytes, of a download that the download manager should
6962        * transfer over a non-wifi connection. Over this size, the use will be warned, but will
6963        * have the option to start the download over the mobile connection anyway.
6964        * @hide
6965        */
6966       public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
6967               "download_manager_recommended_max_bytes_over_mobile";
6968
6969       /**
6970        * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
6971        */
6972       @Deprecated
6973       public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
6974
6975       /**
6976        * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
6977        * sent or processed. (0 = false, 1 = true)
6978        * @hide
6979        */
6980       public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";
6981
6982       /**
6983        * Whether HDMI system audio is enabled. If enabled, TV internal speaker is muted,
6984        * and the output is redirected to AV Receiver connected via
6985        * {@Global#HDMI_SYSTEM_AUDIO_OUTPUT}.
6986        * @hide
6987        */
6988       public static final String HDMI_SYSTEM_AUDIO_ENABLED = "hdmi_system_audio_enabled";
6989
6990       /**
6991        * Whether TV will automatically turn on upon reception of the CEC command
6992        * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
6993        * @hide
6994        */
6995       public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
6996               "hdmi_control_auto_wakeup_enabled";
6997
6998       /**
6999        * Whether TV will also turn off other CEC devices when it goes to standby mode.
7000        * (0 = false, 1 = true)
7001        * @hide
7002        */
7003       public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
7004               "hdmi_control_auto_device_off_enabled";
7005
7006       /**
7007        * Whether TV will switch to MHL port when a mobile device is plugged in.
7008        * (0 = false, 1 = true)
7009        * @hide
7010        */
7011       public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";
7012
7013       /**
7014        * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
7015        * @hide
7016        */
7017       public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";
7018
7019       /**
7020        * Whether mobile data connections are allowed by the user.  See
7021        * ConnectivityManager for more info.
7022        * @hide
7023        */
7024       public static final String MOBILE_DATA = "mobile_data";
7025
7026       /**
7027        * Whether the mobile data connection should remain active even when higher
7028        * priority networks like WiFi are active, to help make network switching faster.
7029        *
7030        * See ConnectivityService for more info.
7031        *
7032        * (0 = disabled, 1 = enabled)
7033        * @hide
7034        */
7035       public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
7036
7037       /** {@hide} */
7038       public static final String NETSTATS_ENABLED = "netstats_enabled";
7039       /** {@hide} */
7040       public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
7041       /** {@hide} */
7042       public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
7043       /** {@hide} */
7044       public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
7045       /** {@hide} */
7046       public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
7047
7048       /** {@hide} */
7049       public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
7050       /** {@hide} */
7051       public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
7052       /** {@hide} */
7053       public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
7054       /** {@hide} */
7055       public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";
7056
7057       /** {@hide} */
7058       public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
7059       /** {@hide} */
7060       public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
7061       /** {@hide} */
7062       public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
7063       /** {@hide} */
7064       public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";
7065
7066       /** {@hide} */
7067       public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
7068       /** {@hide} */
7069       public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
7070       /** {@hide} */
7071       public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
7072       /** {@hide} */
7073       public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";
7074
7075       /**
7076        * User preference for which network(s) should be used. Only the
7077        * connectivity service should touch this.
7078        */
7079       public static final String NETWORK_PREFERENCE = "network_preference";
7080
7081       /**
7082        * Which package name to use for network scoring. If null, or if the package is not a valid
7083        * scorer app, external network scores will neither be requested nor accepted.
7084        * @hide
7085        */
7086       public static final String NETWORK_SCORER_APP = "network_scorer_app";
7087
7088       /**
7089        * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
7090        * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
7091        * exceeded.
7092        * @hide
7093        */
7094       public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
7095
7096       /**
7097        * The length of time in milli-seconds that automatic small adjustments to
7098        * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
7099        * @hide
7100        */
7101       public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
7102
7103       /** Preferred NTP server. {@hide} */
7104       public static final String NTP_SERVER = "ntp_server";
7105       /** Timeout in milliseconds to wait for NTP server. {@hide} */
7106       public static final String NTP_TIMEOUT = "ntp_timeout";
7107
7108       /** {@hide} */
7109       public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";
7110
7111       /**
7112        * Sample validity in seconds to configure for the system DNS resolver.
7113        * {@hide}
7114        */
7115       public static final String DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS =
7116               "dns_resolver_sample_validity_seconds";
7117
7118       /**
7119        * Success threshold in percent for use with the system DNS resolver.
7120        * {@hide}
7121        */
7122       public static final String DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT =
7123                "dns_resolver_success_threshold_percent";
7124
7125       /**
7126        * Minimum number of samples needed for statistics to be considered meaningful in the
7127        * system DNS resolver.
7128        * {@hide}
7129        */
7130       public static final String DNS_RESOLVER_MIN_SAMPLES = "dns_resolver_min_samples";
7131
7132       /**
7133        * Maximum number taken into account for statistics purposes in the system DNS resolver.
7134        * {@hide}
7135        */
7136       public static final String DNS_RESOLVER_MAX_SAMPLES = "dns_resolver_max_samples";
7137
7138       /**
7139        * Whether to disable the automatic scheduling of system updates.
7140        * 1 = system updates won't be automatically scheduled (will always
7141        * present notification instead).
7142        * 0 = system updates will be automatically scheduled. (default)
7143        * @hide
7144        */
7145       @SystemApi
7146       public static final String OTA_DISABLE_AUTOMATIC_UPDATE = "ota_disable_automatic_update";
7147
7148       /**
7149        * Whether the package manager should send package verification broadcasts for verifiers to
7150        * review apps prior to installation.
7151        * 1 = request apps to be verified prior to installation, if a verifier exists.
7152        * 0 = do not verify apps before installation
7153        * @hide
7154        */
7155       public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";
7156
7157       /** Timeout for package verification.
7158        * @hide */
7159       public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";
7160
7161       /** Default response code for package verification.
7162        * @hide */
7163       public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";
7164
7165       /**
7166        * Show package verification setting in the Settings app.
7167        * 1 = show (default)
7168        * 0 = hide
7169        * @hide
7170        */
7171       public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";
7172
7173       /**
7174        * Run package verification on apps installed through ADB/ADT/USB
7175        * 1 = perform package verification on ADB installs (default)
7176        * 0 = bypass package verification on ADB installs
7177        * @hide
7178        */
7179       public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";
7180
7181       /**
7182        * Time since last fstrim (milliseconds) after which we force one to happen
7183        * during device startup.  If unset, the default is 3 days.
7184        * @hide
7185        */
7186       public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";
7187
7188       /**
7189        * The interval in milliseconds at which to check packet counts on the
7190        * mobile data interface when screen is on, to detect possible data
7191        * connection problems.
7192        * @hide
7193        */
7194       public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
7195               "pdp_watchdog_poll_interval_ms";
7196
7197       /**
7198        * The interval in milliseconds at which to check packet counts on the
7199        * mobile data interface when screen is off, to detect possible data
7200        * connection problems.
7201        * @hide
7202        */
7203       public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
7204               "pdp_watchdog_long_poll_interval_ms";
7205
7206       /**
7207        * The interval in milliseconds at which to check packet counts on the
7208        * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
7209        * outgoing packets has been reached without incoming packets.
7210        * @hide
7211        */
7212       public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
7213               "pdp_watchdog_error_poll_interval_ms";
7214
7215       /**
7216        * The number of outgoing packets sent without seeing an incoming packet
7217        * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
7218        * device is logged to the event log
7219        * @hide
7220        */
7221       public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
7222               "pdp_watchdog_trigger_packet_count";
7223
7224       /**
7225        * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
7226        * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
7227        * attempting data connection recovery.
7228        * @hide
7229        */
7230       public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
7231               "pdp_watchdog_error_poll_count";
7232
7233       /**
7234        * The number of failed PDP reset attempts before moving to something more
7235        * drastic: re-registering to the network.
7236        * @hide
7237        */
7238       public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
7239               "pdp_watchdog_max_pdp_reset_fail_count";
7240
7241       /**
7242        * A positive value indicates how often the SamplingProfiler
7243        * should take snapshots. Zero value means SamplingProfiler
7244        * is disabled.
7245        *
7246        * @hide
7247        */
7248       public static final String SAMPLING_PROFILER_MS = "sampling_profiler_ms";
7249
7250       /**
7251        * URL to open browser on to allow user to manage a prepay account
7252        * @hide
7253        */
7254       public static final String SETUP_PREPAID_DATA_SERVICE_URL =
7255               "setup_prepaid_data_service_url";
7256
7257       /**
7258        * URL to attempt a GET on to see if this is a prepay device
7259        * @hide
7260        */
7261       public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
7262               "setup_prepaid_detection_target_url";
7263
7264       /**
7265        * Host to check for a redirect to after an attempt to GET
7266        * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
7267        * this is a prepaid device with zero balance.)
7268        * @hide
7269        */
7270       public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
7271               "setup_prepaid_detection_redir_host";
7272
7273       /**
7274        * The interval in milliseconds at which to check the number of SMS sent out without asking
7275        * for use permit, to limit the un-authorized SMS usage.
7276        *
7277        * @hide
7278        */
7279       public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
7280               "sms_outgoing_check_interval_ms";
7281
7282       /**
7283        * The number of outgoing SMS sent without asking for user permit (of {@link
7284        * #SMS_OUTGOING_CHECK_INTERVAL_MS}
7285        *
7286        * @hide
7287        */
7288       public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
7289               "sms_outgoing_check_max_count";
7290
7291       /**
7292        * Used to disable SMS short code confirmation - defaults to true.
7293        * True indcates we will do the check, etc.  Set to false to disable.
7294        * @see com.android.internal.telephony.SmsUsageMonitor
7295        * @hide
7296        */
7297       public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";
7298
7299        /**
7300         * Used to select which country we use to determine premium sms codes.
7301         * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
7302         * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
7303         * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
7304         * @hide
7305         */
7306        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";
7307
7308       /**
7309        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
7310        * @hide
7311        */
7312       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";
7313
7314       /**
7315        * Used to disable Tethering on a device - defaults to true
7316        * @hide
7317        */
7318       public static final String TETHER_SUPPORTED = "tether_supported";
7319
7320       /**
7321        * Used to require DUN APN on the device or not - defaults to a build config value
7322        * which defaults to false
7323        * @hide
7324        */
7325       public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
7326
7327       /**
7328        * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
7329        * corresponding build config values are set it will override the APN DB
7330        * values.
7331        * Consists of a comma seperated list of strings:
7332        * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
7333        * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
7334        * @hide
7335        */
7336       public static final String TETHER_DUN_APN = "tether_dun_apn";
7337
7338       /**
7339        * List of carrier apps which are whitelisted to prompt the user for install when
7340        * a sim card with matching uicc carrier privilege rules is inserted.
7341        *
7342        * The value is "package1;package2;..."
7343        * @hide
7344        */
7345       public static final String CARRIER_APP_WHITELIST = "carrier_app_whitelist";
7346
7347       /**
7348        * USB Mass Storage Enabled
7349        */
7350       public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
7351
7352       /**
7353        * If this setting is set (to anything), then all references
7354        * to Gmail on the device must change to Google Mail.
7355        */
7356       public static final String USE_GOOGLE_MAIL = "use_google_mail";
7357
7358        /**
7359         * Webview Data reduction proxy key.
7360         * @hide
7361         */
7362        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
7363                "webview_data_reduction_proxy_key";
7364
7365        /**
7366         * Whether or not the WebView fallback mechanism should be enabled.
7367         * 0=disabled, 1=enabled.
7368         * @hide
7369         */
7370        public static final String WEBVIEW_FALLBACK_LOGIC_ENABLED =
7371                "webview_fallback_logic_enabled";
7372
7373        /**
7374         * Name of the package used as WebView provider (if unset the provider is instead determined
7375         * by the system).
7376         * @hide
7377         */
7378        public static final String WEBVIEW_PROVIDER = "webview_provider";
7379
7380        /**
7381         * Developer setting to enable WebView multiprocess rendering.
7382         * @hide
7383         */
7384        @SystemApi
7385        public static final String WEBVIEW_MULTIPROCESS = "webview_multiprocess";
7386
7387       /**
7388        * Whether Wifi display is enabled/disabled
7389        * 0=disabled. 1=enabled.
7390        * @hide
7391        */
7392       public static final String WIFI_DISPLAY_ON = "wifi_display_on";
7393
7394       /**
7395        * Whether Wifi display certification mode is enabled/disabled
7396        * 0=disabled. 1=enabled.
7397        * @hide
7398        */
7399       public static final String WIFI_DISPLAY_CERTIFICATION_ON =
7400               "wifi_display_certification_on";
7401
7402       /**
7403        * WPS Configuration method used by Wifi display, this setting only
7404        * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
7405        *
7406        * Possible values are:
7407        *
7408        * WpsInfo.INVALID: use default WPS method chosen by framework
7409        * WpsInfo.PBC    : use Push button
7410        * WpsInfo.KEYPAD : use Keypad
7411        * WpsInfo.DISPLAY: use Display
7412        * @hide
7413        */
7414       public static final String WIFI_DISPLAY_WPS_CONFIG =
7415           "wifi_display_wps_config";
7416
7417       /**
7418        * Whether to notify the user of open networks.
7419        * <p>
7420        * If not connected and the scan results have an open network, we will
7421        * put this notification up. If we attempt to connect to a network or
7422        * the open network(s) disappear, we remove the notification. When we
7423        * show the notification, we will not show it again for
7424        * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
7425        */
7426       public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
7427               "wifi_networks_available_notification_on";
7428       /**
7429        * {@hide}
7430        */
7431       public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
7432               "wimax_networks_available_notification_on";
7433
7434       /**
7435        * Delay (in seconds) before repeating the Wi-Fi networks available notification.
7436        * Connecting to a network will reset the timer.
7437        */
7438       public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
7439               "wifi_networks_available_repeat_delay";
7440
7441       /**
7442        * 802.11 country code in ISO 3166 format
7443        * @hide
7444        */
7445       public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
7446
7447       /**
7448        * The interval in milliseconds to issue wake up scans when wifi needs
7449        * to connect. This is necessary to connect to an access point when
7450        * device is on the move and the screen is off.
7451        * @hide
7452        */
7453       public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
7454               "wifi_framework_scan_interval_ms";
7455
7456       /**
7457        * The interval in milliseconds after which Wi-Fi is considered idle.
7458        * When idle, it is possible for the device to be switched from Wi-Fi to
7459        * the mobile data network.
7460        * @hide
7461        */
7462       public static final String WIFI_IDLE_MS = "wifi_idle_ms";
7463
7464       /**
7465        * When the number of open networks exceeds this number, the
7466        * least-recently-used excess networks will be removed.
7467        */
7468       public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
7469
7470       /**
7471        * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
7472        */
7473       public static final String WIFI_ON = "wifi_on";
7474
7475       /**
7476        * Setting to allow scans to be enabled even wifi is turned off for connectivity.
7477        * @hide
7478        */
7479       public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
7480                "wifi_scan_always_enabled";
7481
7482       /**
7483        * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
7484        * connectivity.
7485        * @hide
7486        */
7487       public static final String BLE_SCAN_ALWAYS_AVAILABLE =
7488               "ble_scan_always_enabled";
7489
7490       /**
7491        * Used to save the Wifi_ON state prior to tethering.
7492        * This state will be checked to restore Wifi after
7493        * the user turns off tethering.
7494        *
7495        * @hide
7496        */
7497       public static final String WIFI_SAVED_STATE = "wifi_saved_state";
7498
7499       /**
7500        * The interval in milliseconds to scan as used by the wifi supplicant
7501        * @hide
7502        */
7503       public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
7504               "wifi_supplicant_scan_interval_ms";
7505
7506        /**
7507         * whether frameworks handles wifi auto-join
7508         * @hide
7509         */
7510       public static final String WIFI_ENHANCED_AUTO_JOIN =
7511                "wifi_enhanced_auto_join";
7512
7513        /**
7514         * whether settings show RSSI
7515         * @hide
7516         */
7517        public static final String WIFI_NETWORK_SHOW_RSSI =
7518                "wifi_network_show_rssi";
7519
7520        /**
7521        * The interval in milliseconds to scan at supplicant when p2p is connected
7522        * @hide
7523        */
7524       public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
7525               "wifi_scan_interval_p2p_connected_ms";
7526
7527       /**
7528        * Whether the Wi-Fi watchdog is enabled.
7529        */
7530       public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
7531
7532       /**
7533        * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
7534        * the setting needs to be set to 0 to disable it.
7535        * @hide
7536        */
7537       public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
7538               "wifi_watchdog_poor_network_test_enabled";
7539
7540       /**
7541        * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
7542        * needs to be set to 0 to disable it.
7543        * @hide
7544        */
7545       public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
7546               "wifi_suspend_optimizations_enabled";
7547
7548       /**
7549        * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
7550        * will enable it. In the future, additional values may be supported.
7551        * @hide
7552        */
7553       public static final String WIFI_VERBOSE_LOGGING_ENABLED =
7554               "wifi_verbose_logging_enabled";
7555
7556       /**
7557        * The maximum number of times we will retry a connection to an access
7558        * point for which we have failed in acquiring an IP address from DHCP.
7559        * A value of N means that we will make N+1 connection attempts in all.
7560        */
7561       public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
7562
7563       /**
7564        * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
7565        * data connectivity to be established after a disconnect from Wi-Fi.
7566        */
7567       public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
7568           "wifi_mobile_data_transition_wakelock_timeout_ms";
7569
7570       /**
7571        * This setting controls whether WiFi configurations created by a Device Owner app
7572        * should be locked down (that is, be editable or removable only by the Device Owner App,
7573        * not even by Settings app).
7574        * This setting takes integer values. Non-zero values mean DO created configurations
7575        * are locked down. Value of zero means they are not. Default value in the absence of
7576        * actual value to this setting is 0.
7577        */
7578       public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
7579               "wifi_device_owner_configs_lockdown";
7580
7581       /**
7582        * The operational wifi frequency band
7583        * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
7584        * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
7585        * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
7586        *
7587        * @hide
7588        */
7589       public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
7590
7591       /**
7592        * The Wi-Fi peer-to-peer device name
7593        * @hide
7594        */
7595       public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";
7596
7597       /**
7598        * The min time between wifi disable and wifi enable
7599        * @hide
7600        */
7601       public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";
7602
7603       /**
7604        * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
7605        * from an ephemeral network if there is no BSSID for that network with a non-null score that
7606        * has been seen in this time period.
7607        *
7608        * If this is less than or equal to zero, we use a more conservative behavior and only check
7609        * for a non-null score from the currently connected or target BSSID.
7610        * @hide
7611        */
7612       public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
7613               "wifi_ephemeral_out_of_range_timeout_ms";
7614
7615       /**
7616        * The number of milliseconds to delay when checking for data stalls during
7617        * non-aggressive detection. (screen is turned off.)
7618        * @hide
7619        */
7620       public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
7621               "data_stall_alarm_non_aggressive_delay_in_ms";
7622
7623       /**
7624        * The number of milliseconds to delay when checking for data stalls during
7625        * aggressive detection. (screen on or suspected data stall)
7626        * @hide
7627        */
7628       public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
7629               "data_stall_alarm_aggressive_delay_in_ms";
7630
7631       /**
7632        * The number of milliseconds to allow the provisioning apn to remain active
7633        * @hide
7634        */
7635       public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
7636               "provisioning_apn_alarm_delay_in_ms";
7637
7638       /**
7639        * The interval in milliseconds at which to check gprs registration
7640        * after the first registration mismatch of gprs and voice service,
7641        * to detect possible data network registration problems.
7642        *
7643        * @hide
7644        */
7645       public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
7646               "gprs_register_check_period_ms";
7647
7648       /**
7649        * Nonzero causes Log.wtf() to crash.
7650        * @hide
7651        */
7652       public static final String WTF_IS_FATAL = "wtf_is_fatal";
7653
7654       /**
7655        * Ringer mode. This is used internally, changing this value will not
7656        * change the ringer mode. See AudioManager.
7657        */
7658       public static final String MODE_RINGER = "mode_ringer";
7659
7660       /**
7661        * Overlay display devices setting.
7662        * The associated value is a specially formatted string that describes the
7663        * size and density of simulated secondary display devices.
7664        * <p>
7665        * Format: {width}x{height}/{dpi};...
7666        * </p><p>
7667        * Example:
7668        * <ul>
7669        * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
7670        * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
7671        * at 1080p and the second at 720p.</li>
7672        * <li>If the value is empty, then no overlay display devices are created.</li>
7673        * </ul></p>
7674        *
7675        * @hide
7676        */
7677       public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";
7678
7679        /**
7680         * Threshold values for the duration and level of a discharge cycle,
7681         * under which we log discharge cycle info.
7682         *
7683         * @hide
7684         */
7685        public static final String
7686                BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";
7687
7688        /** @hide */
7689        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
7690
7691        /**
7692         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
7693         * intents on application crashes and ANRs. If this is disabled, the
7694         * crash/ANR dialog will never display the "Report" button.
7695         * <p>
7696         * Type: int (0 = disallow, 1 = allow)
7697         *
7698         * @hide
7699         */
7700        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
7701
7702        /**
7703         * Maximum age of entries kept by {@link DropBoxManager}.
7704         *
7705         * @hide
7706         */
7707        public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";
7708
7709        /**
7710         * Maximum number of entry files which {@link DropBoxManager} will keep
7711         * around.
7712         *
7713         * @hide
7714         */
7715        public static final String DROPBOX_MAX_FILES = "dropbox_max_files";
7716
7717        /**
7718         * Maximum amount of disk space used by {@link DropBoxManager} no matter
7719         * what.
7720         *
7721         * @hide
7722         */
7723        public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";
7724
7725        /**
7726         * Percent of free disk (excluding reserve) which {@link DropBoxManager}
7727         * will use.
7728         *
7729         * @hide
7730         */
7731        public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";
7732
7733        /**
7734         * Percent of total disk which {@link DropBoxManager} will never dip
7735         * into.
7736         *
7737         * @hide
7738         */
7739        public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";
7740
7741        /**
7742         * Prefix for per-tag dropbox disable/enable settings.
7743         *
7744         * @hide
7745         */
7746        public static final String DROPBOX_TAG_PREFIX = "dropbox:";
7747
7748        /**
7749         * Lines of logcat to include with system crash/ANR/etc. reports, as a
7750         * prefix of the dropbox tag of the report type. For example,
7751         * "logcat_for_system_server_anr" controls the lines of logcat captured
7752         * with system server ANR reports. 0 to disable.
7753         *
7754         * @hide
7755         */
7756        public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";
7757
7758        /**
7759         * The interval in minutes after which the amount of free storage left
7760         * on the device is logged to the event log
7761         *
7762         * @hide
7763         */
7764        public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";
7765
7766        /**
7767         * Threshold for the amount of change in disk free space required to
7768         * report the amount of free space. Used to prevent spamming the logs
7769         * when the disk free space isn't changing frequently.
7770         *
7771         * @hide
7772         */
7773        public static final String
7774                DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";
7775
7776        /**
7777         * Minimum percentage of free storage on the device that is used to
7778         * determine if the device is running low on storage. The default is 10.
7779         * <p>
7780         * Say this value is set to 10, the device is considered running low on
7781         * storage if 90% or more of the device storage is filled up.
7782         *
7783         * @hide
7784         */
7785        public static final String
7786                SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";
7787
7788        /**
7789         * Maximum byte size of the low storage threshold. This is to ensure
7790         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
7791         * overly large threshold for large storage devices. Currently this must
7792         * be less than 2GB. This default is 500MB.
7793         *
7794         * @hide
7795         */
7796        public static final String
7797                SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";
7798
7799        /**
7800         * Minimum bytes of free storage on the device before the data partition
7801         * is considered full. By default, 1 MB is reserved to avoid system-wide
7802         * SQLite disk full exceptions.
7803         *
7804         * @hide
7805         */
7806        public static final String
7807                SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";
7808
7809        /**
7810         * The maximum reconnect delay for short network outages or when the
7811         * network is suspended due to phone use.
7812         *
7813         * @hide
7814         */
7815        public static final String
7816                SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";
7817
7818        /**
7819         * The number of milliseconds to delay before sending out
7820         * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
7821         *
7822         * @hide
7823         */
7824        public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";
7825
7826
7827        /**
7828         * Network sampling interval, in seconds. We'll generate link information
7829         * about bytes/packets sent and error rates based on data sampled in this interval
7830         *
7831         * @hide
7832         */
7833
7834        public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
7835                "connectivity_sampling_interval_in_seconds";
7836
7837        /**
7838         * The series of successively longer delays used in retrying to download PAC file.
7839         * Last delay is used between successful PAC downloads.
7840         *
7841         * @hide
7842         */
7843        public static final String PAC_CHANGE_DELAY = "pac_change_delay";
7844
7845        /**
7846         * Setting to turn off captive portal detection. Feature is enabled by
7847         * default and the setting needs to be set to 0 to disable it.
7848         *
7849         * @hide
7850         */
7851        public static final String
7852                CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";
7853
7854        /**
7855         * The server used for captive portal detection upon a new conection. A
7856         * 204 response code from the server is used for validation.
7857         *
7858         * @hide
7859         */
7860        public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";
7861
7862        /**
7863         * Whether to use HTTPS for network validation. This is enabled by default and the setting
7864         * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
7865         * don't actually use HTTPS, but it's consistent with the other settings.
7866         *
7867         * @hide
7868         */
7869        public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";
7870
7871        /**
7872         * Whether network service discovery is enabled.
7873         *
7874         * @hide
7875         */
7876        public static final String NSD_ON = "nsd_on";
7877
7878        /**
7879         * Let user pick default install location.
7880         *
7881         * @hide
7882         */
7883        public static final String SET_INSTALL_LOCATION = "set_install_location";
7884
7885        /**
7886         * Default install location value.
7887         * 0 = auto, let system decide
7888         * 1 = internal
7889         * 2 = sdcard
7890         * @hide
7891         */
7892        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
7893
7894        /**
7895         * ms during which to consume extra events related to Inet connection
7896         * condition after a transtion to fully-connected
7897         *
7898         * @hide
7899         */
7900        public static final String
7901                INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";
7902
7903        /**
7904         * ms during which to consume extra events related to Inet connection
7905         * condtion after a transtion to partly-connected
7906         *
7907         * @hide
7908         */
7909        public static final String
7910                INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";
7911
7912        /** {@hide} */
7913        public static final String
7914                READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";
7915
7916        /**
7917         * Host name and port for global http proxy. Uses ':' seperator for
7918         * between host and port.
7919         */
7920        public static final String HTTP_PROXY = "http_proxy";
7921
7922        /**
7923         * Host name for global http proxy. Set via ConnectivityManager.
7924         *
7925         * @hide
7926         */
7927        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
7928
7929        /**
7930         * Integer host port for global http proxy. Set via ConnectivityManager.
7931         *
7932         * @hide
7933         */
7934        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
7935
7936        /**
7937         * Exclusion list for global proxy. This string contains a list of
7938         * comma-separated domains where the global proxy does not apply.
7939         * Domains should be listed in a comma- separated list. Example of
7940         * acceptable formats: ".domain1.com,my.domain2.com" Use
7941         * ConnectivityManager to set/get.
7942         *
7943         * @hide
7944         */
7945        public static final String
7946                GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";
7947
7948        /**
7949         * The location PAC File for the proxy.
7950         * @hide
7951         */
7952        public static final String
7953                GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";
7954
7955        /**
7956         * Enables the UI setting to allow the user to specify the global HTTP
7957         * proxy and associated exclusion list.
7958         *
7959         * @hide
7960         */
7961        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
7962
7963        /**
7964         * Setting for default DNS in case nobody suggests one
7965         *
7966         * @hide
7967         */
7968        public static final String DEFAULT_DNS_SERVER = "default_dns_server";
7969
7970        /** {@hide} */
7971        public static final String
7972                BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
7973        /** {@hide} */
7974        public static final String
7975                BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
7976        /** {@hide} */
7977        public static final String
7978                BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX = "bluetooth_a2dp_src_priority_";
7979        /** {@hide} */
7980        public static final String
7981                BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
7982        /** {@hide} */
7983        public static final String
7984                BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
7985        /** {@hide} */
7986        public static final String
7987                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
7988        /** {@hide} */
7989        public static final String
7990                BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
7991
7992        /**
7993         * Device Idle (Doze) specific settings.
7994         * This is encoded as a key=value list, separated by commas. Ex:
7995         *
7996         * "inactive_timeout=60000,sensing_timeout=400000"
7997         *
7998         * The following keys are supported:
7999         *
8000         * <pre>
8001         * inactive_to                      (long)
8002         * sensing_to                       (long)
8003         * motion_inactive_to               (long)
8004         * idle_after_inactive_to           (long)
8005         * idle_pending_to                  (long)
8006         * max_idle_pending_to              (long)
8007         * idle_pending_factor              (float)
8008         * idle_to                          (long)
8009         * max_idle_to                      (long)
8010         * idle_factor                      (float)
8011         * min_time_to_alarm                (long)
8012         * max_temp_app_whitelist_duration  (long)
8013         * notification_whitelist_duration  (long)
8014         * </pre>
8015         *
8016         * <p>
8017         * Type: string
8018         * @hide
8019         * @see com.android.server.DeviceIdleController.Constants
8020         */
8021        public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";
8022
8023        /**
8024         * Device Idle (Doze) specific settings for watches. See {@code #DEVICE_IDLE_CONSTANTS}
8025         *
8026         * <p>
8027         * Type: string
8028         * @hide
8029         * @see com.android.server.DeviceIdleController.Constants
8030         */
8031        public static final String DEVICE_IDLE_CONSTANTS_WATCH = "device_idle_constants_watch";
8032
8033        /**
8034         * App standby (app idle) specific settings.
8035         * This is encoded as a key=value list, separated by commas. Ex:
8036         *
8037         * "idle_duration=5000,parole_interval=4500"
8038         *
8039         * The following keys are supported:
8040         *
8041         * <pre>
8042         * idle_duration2       (long)
8043         * wallclock_threshold  (long)
8044         * parole_interval      (long)
8045         * parole_duration      (long)
8046         *
8047         * idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
8048         * </pre>
8049         *
8050         * <p>
8051         * Type: string
8052         * @hide
8053         * @see com.android.server.usage.UsageStatsService.SettingsObserver
8054         */
8055        public static final String APP_IDLE_CONSTANTS = "app_idle_constants";
8056
8057        /**
8058         * Alarm manager specific settings.
8059         * This is encoded as a key=value list, separated by commas. Ex:
8060         *
8061         * "min_futurity=5000,allow_while_idle_short_time=4500"
8062         *
8063         * The following keys are supported:
8064         *
8065         * <pre>
8066         * min_futurity                         (long)
8067         * min_interval                         (long)
8068         * allow_while_idle_short_time          (long)
8069         * allow_while_idle_long_time           (long)
8070         * allow_while_idle_whitelist_duration  (long)
8071         * </pre>
8072         *
8073         * <p>
8074         * Type: string
8075         * @hide
8076         * @see com.android.server.AlarmManagerService.Constants
8077         */
8078        public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";
8079
8080        /**
8081         * Job scheduler specific settings.
8082         * This is encoded as a key=value list, separated by commas. Ex:
8083         *
8084         * "min_ready_jobs_count=2,moderate_use_factor=.5"
8085         *
8086         * The following keys are supported:
8087         *
8088         * <pre>
8089         * min_idle_count                       (int)
8090         * min_charging_count                   (int)
8091         * min_connectivity_count               (int)
8092         * min_content_count                    (int)
8093         * min_ready_jobs_count                 (int)
8094         * heavy_use_factor                     (float)
8095         * moderate_use_factor                  (float)
8096         * fg_job_count                         (int)
8097         * bg_normal_job_count                  (int)
8098         * bg_moderate_job_count                (int)
8099         * bg_low_job_count                     (int)
8100         * bg_critical_job_count                (int)
8101         * </pre>
8102         *
8103         * <p>
8104         * Type: string
8105         * @hide
8106         * @see com.android.server.job.JobSchedulerService.Constants
8107         */
8108        public static final String JOB_SCHEDULER_CONSTANTS = "job_scheduler_constants";
8109
8110        /**
8111         * ShortcutManager specific settings.
8112         * This is encoded as a key=value list, separated by commas. Ex:
8113         *
8114         * "reset_interval_sec=86400,max_updates_per_interval=1"
8115         *
8116         * The following keys are supported:
8117         *
8118         * <pre>
8119         * reset_interval_sec              (long)
8120         * max_updates_per_interval        (int)
8121         * max_icon_dimension_dp           (int, DP)
8122         * max_icon_dimension_dp_lowram    (int, DP)
8123         * max_shortcuts                   (int)
8124         * icon_quality                    (int, 0-100)
8125         * icon_format                     (String)
8126         * </pre>
8127         *
8128         * <p>
8129         * Type: string
8130         * @hide
8131         * @see com.android.server.pm.ShortcutService.ConfigConstants
8132         */
8133        public static final String SHORTCUT_MANAGER_CONSTANTS = "shortcut_manager_constants";
8134
8135        /**
8136         * Get the key that retrieves a bluetooth headset's priority.
8137         * @hide
8138         */
8139        public static final String getBluetoothHeadsetPriorityKey(String address) {
8140            return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8141        }
8142
8143        /**
8144         * Get the key that retrieves a bluetooth a2dp sink's priority.
8145         * @hide
8146         */
8147        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
8148            return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8149        }
8150
8151        /**
8152         * Get the key that retrieves a bluetooth a2dp src's priority.
8153         * @hide
8154         */
8155        public static final String getBluetoothA2dpSrcPriorityKey(String address) {
8156            return BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8157        }
8158
8159        /**
8160         * Get the key that retrieves a bluetooth Input Device's priority.
8161         * @hide
8162         */
8163        public static final String getBluetoothInputDevicePriorityKey(String address) {
8164            return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8165        }
8166
8167        /**
8168         * Get the key that retrieves a bluetooth map priority.
8169         * @hide
8170         */
8171        public static final String getBluetoothMapPriorityKey(String address) {
8172            return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8173        }
8174
8175        /**
8176         * Get the key that retrieves a bluetooth pbap client priority.
8177         * @hide
8178         */
8179        public static final String getBluetoothPbapClientPriorityKey(String address) {
8180            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8181        }
8182
8183        /**
8184         * Get the key that retrieves a bluetooth map priority.
8185         * @hide
8186         */
8187        public static final String getBluetoothSapPriorityKey(String address) {
8188            return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
8189        }
8190
8191        /**
8192         * Scaling factor for normal window animations. Setting to 0 will
8193         * disable window animations.
8194         */
8195        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
8196
8197        /**
8198         * Scaling factor for activity transition animations. Setting to 0 will
8199         * disable window animations.
8200         */
8201        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
8202
8203        /**
8204         * Scaling factor for Animator-based animations. This affects both the
8205         * start delay and duration of all such animations. Setting to 0 will
8206         * cause animations to end immediately. The default value is 1.
8207         */
8208        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
8209
8210        /**
8211         * Scaling factor for normal window animations. Setting to 0 will
8212         * disable window animations.
8213         *
8214         * @hide
8215         */
8216        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
8217
8218        /**
8219         * If 0, the compatibility mode is off for all applications.
8220         * If 1, older applications run under compatibility mode.
8221         * TODO: remove this settings before code freeze (bug/1907571)
8222         * @hide
8223         */
8224        public static final String COMPATIBILITY_MODE = "compatibility_mode";
8225
8226        /**
8227         * CDMA only settings
8228         * Emergency Tone  0 = Off
8229         *                 1 = Alert
8230         *                 2 = Vibrate
8231         * @hide
8232         */
8233        public static final String EMERGENCY_TONE = "emergency_tone";
8234
8235        /**
8236         * CDMA only settings
8237         * Whether the auto retry is enabled. The value is
8238         * boolean (1 or 0).
8239         * @hide
8240         */
8241        public static final String CALL_AUTO_RETRY = "call_auto_retry";
8242
8243        /**
8244         * See RIL_PreferredNetworkType in ril.h
8245         * @hide
8246         */
8247        public static final String PREFERRED_NETWORK_MODE =
8248                "preferred_network_mode";
8249
8250        /**
8251         * Name of an application package to be debugged.
8252         */
8253        public static final String DEBUG_APP = "debug_app";
8254
8255        /**
8256         * If 1, when launching DEBUG_APP it will wait for the debugger before
8257         * starting user code.  If 0, it will run normally.
8258         */
8259        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
8260
8261        /**
8262         * Control whether the process CPU usage meter should be shown.
8263         */
8264        public static final String SHOW_PROCESSES = "show_processes";
8265
8266        /**
8267         * If 1 low power mode is enabled.
8268         * @hide
8269         */
8270        public static final String LOW_POWER_MODE = "low_power";
8271
8272        /**
8273         * Battery level [1-99] at which low power mode automatically turns on.
8274         * If 0, it will not automatically turn on.
8275         * @hide
8276         */
8277        public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";
8278
8279         /**
8280         * If not 0, the activity manager will aggressively finish activities and
8281         * processes as soon as they are no longer needed.  If 0, the normal
8282         * extended lifetime is used.
8283         */
8284        public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
8285
8286        /**
8287         * @hide
8288         * If not 0, the activity manager will implement a looser version of background
8289         * check that is more compatible with existing apps.
8290         */
8291        public static final String LENIENT_BACKGROUND_CHECK = "lenient_background_check";
8292
8293        /**
8294         * Use Dock audio output for media:
8295         *      0 = disabled
8296         *      1 = enabled
8297         * @hide
8298         */
8299        public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
8300
8301        /**
8302         * The surround sound formats AC3, DTS or IEC61937 are
8303         * available for use if they are detected.
8304         * This is the default mode.
8305         *
8306         * Note that AUTO is equivalent to ALWAYS for Android TVs and other
8307         * devices that have an S/PDIF output. This is because S/PDIF
8308         * is unidirectional and the TV cannot know if a decoder is
8309         * connected. So it assumes they are always available.
8310         * @hide
8311         */
8312         public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;
8313
8314        /**
8315         * AC3, DTS or IEC61937 are NEVER available, even if they
8316         * are detected by the hardware. Those formats will not be
8317         * reported.
8318         *
8319         * An example use case would be an AVR reports that it is capable of
8320         * surround sound decoding but is broken. If NEVER is chosen
8321         * then apps must use PCM output instead of encoded output.
8322         * @hide
8323         */
8324         public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;
8325
8326        /**
8327         * AC3, DTS or IEC61937 are ALWAYS available, even if they
8328         * are not detected by the hardware. Those formats will be
8329         * reported as part of the HDMI output capability. Applications
8330         * are then free to use either PCM or encoded output.
8331         *
8332         * An example use case would be a when TV was connected over
8333         * TOS-link to an AVR. But the TV could not see it because TOS-link
8334         * is unidirectional.
8335         * @hide
8336         */
8337         public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;
8338
8339        /**
8340         * Set to ENCODED_SURROUND_OUTPUT_AUTO,
8341         * ENCODED_SURROUND_OUTPUT_NEVER or
8342         * ENCODED_SURROUND_OUTPUT_ALWAYS
8343         * @hide
8344         */
8345        public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";
8346
8347        /**
8348         * Persisted safe headphone volume management state by AudioService
8349         * @hide
8350         */
8351        public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";
8352
8353        /**
8354         * URL for tzinfo (time zone) updates
8355         * @hide
8356         */
8357        public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";
8358
8359        /**
8360         * URL for tzinfo (time zone) update metadata
8361         * @hide
8362         */
8363        public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";
8364
8365        /**
8366         * URL for selinux (mandatory access control) updates
8367         * @hide
8368         */
8369        public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";
8370
8371        /**
8372         * URL for selinux (mandatory access control) update metadata
8373         * @hide
8374         */
8375        public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";
8376
8377        /**
8378         * URL for sms short code updates
8379         * @hide
8380         */
8381        public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
8382                "sms_short_codes_content_url";
8383
8384        /**
8385         * URL for sms short code update metadata
8386         * @hide
8387         */
8388        public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
8389                "sms_short_codes_metadata_url";
8390
8391        /**
8392         * URL for apn_db updates
8393         * @hide
8394         */
8395        public static final String APN_DB_UPDATE_CONTENT_URL = "apn_db_content_url";
8396
8397        /**
8398         * URL for apn_db update metadata
8399         * @hide
8400         */
8401        public static final String APN_DB_UPDATE_METADATA_URL = "apn_db_metadata_url";
8402
8403        /**
8404         * URL for cert pinlist updates
8405         * @hide
8406         */
8407        public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";
8408
8409        /**
8410         * URL for cert pinlist updates
8411         * @hide
8412         */
8413        public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";
8414
8415        /**
8416         * URL for intent firewall updates
8417         * @hide
8418         */
8419        public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
8420                "intent_firewall_content_url";
8421
8422        /**
8423         * URL for intent firewall update metadata
8424         * @hide
8425         */
8426        public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
8427                "intent_firewall_metadata_url";
8428
8429        /**
8430         * SELinux enforcement status. If 0, permissive; if 1, enforcing.
8431         * @hide
8432         */
8433        public static final String SELINUX_STATUS = "selinux_status";
8434
8435        /**
8436         * Developer setting to force RTL layout.
8437         * @hide
8438         */
8439        public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
8440
8441        /**
8442         * Milliseconds after screen-off after which low battery sounds will be silenced.
8443         *
8444         * If zero, battery sounds will always play.
8445         * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
8446         *
8447         * @hide
8448         */
8449        public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
8450
8451        /**
8452         * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
8453         * the caller is done with this, they should call {@link ContentResolver#delete} to
8454         * clean up any value that they may have written.
8455         *
8456         * @hide
8457         */
8458        public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";
8459
8460        /**
8461         * Defines global runtime overrides to window policy.
8462         *
8463         * See {@link com.android.server.policy.PolicyControl} for value format.
8464         *
8465         * @hide
8466         */
8467        public static final String POLICY_CONTROL = "policy_control";
8468
8469        /**
8470         * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
8471         * or ZEN_MODE_NO_INTERRUPTIONS.
8472         *
8473         * @hide
8474         */
8475        public static final String ZEN_MODE = "zen_mode";
8476
8477        /** @hide */ public static final int ZEN_MODE_OFF = 0;
8478        /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
8479        /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
8480        /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
8481
8482        /** @hide */ public static String zenModeToString(int mode) {
8483            if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
8484            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
8485            if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
8486            return "ZEN_MODE_OFF";
8487        }
8488
8489        /** @hide */ public static boolean isValidZenMode(int value) {
8490            switch (value) {
8491                case Global.ZEN_MODE_OFF:
8492                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
8493                case Global.ZEN_MODE_ALARMS:
8494                case Global.ZEN_MODE_NO_INTERRUPTIONS:
8495                    return true;
8496                default:
8497                    return false;
8498            }
8499        }
8500
8501        /**
8502         * Value of the ringer before entering zen mode.
8503         *
8504         * @hide
8505         */
8506        public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";
8507
8508        /**
8509         * Opaque value, changes when persisted zen mode configuration changes.
8510         *
8511         * @hide
8512         */
8513        public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";
8514
8515        /**
8516         * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
8517         *
8518         * @hide
8519         */
8520        public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
8521                "heads_up_notifications_enabled";
8522
8523        /** @hide */ public static final int HEADS_UP_OFF = 0;
8524        /** @hide */ public static final int HEADS_UP_ON = 1;
8525
8526        /**
8527         * The name of the device
8528         *
8529         * @hide
8530         */
8531        public static final String DEVICE_NAME = "device_name";
8532
8533        /**
8534         * Whether the NetworkScoringService has been first initialized.
8535         * <p>
8536         * Type: int (0 for false, 1 for true)
8537         * @hide
8538         */
8539        public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";
8540
8541        /**
8542         * Whether the user wants to be prompted for password to decrypt the device on boot.
8543         * This only matters if the storage is encrypted.
8544         * <p>
8545         * Type: int (0 for false, 1 for true)
8546         * @hide
8547         */
8548        public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
8549
8550        /**
8551         * Whether the Volte is enabled
8552         * <p>
8553         * Type: int (0 for false, 1 for true)
8554         * @hide
8555         */
8556        public static final String ENHANCED_4G_MODE_ENABLED = "volte_vt_enabled";
8557
8558        /**
8559         * Whether VT (Video Telephony over IMS) is enabled
8560         * <p>
8561         * Type: int (0 for false, 1 for true)
8562         *
8563         * @hide
8564         */
8565        public static final String VT_IMS_ENABLED = "vt_ims_enabled";
8566
8567        /**
8568         * Whether WFC is enabled
8569         * <p>
8570         * Type: int (0 for false, 1 for true)
8571         *
8572         * @hide
8573         */
8574        public static final String WFC_IMS_ENABLED = "wfc_ims_enabled";
8575
8576        /**
8577         * WFC Mode.
8578         * <p>
8579         * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
8580         *
8581         * @hide
8582         */
8583        public static final String WFC_IMS_MODE = "wfc_ims_mode";
8584
8585        /**
8586         * Whether WFC roaming is enabled
8587         * <p>
8588         * Type: int (0 for false, 1 for true)
8589         *
8590         * @hide
8591         */
8592        public static final String WFC_IMS_ROAMING_ENABLED = "wfc_ims_roaming_enabled";
8593
8594        /**
8595         * Whether user can enable/disable LTE as a preferred network. A carrier might control
8596         * this via gservices, OMA-DM, carrier app, etc.
8597         * <p>
8598         * Type: int (0 for false, 1 for true)
8599         * @hide
8600         */
8601        public static final String LTE_SERVICE_FORCED = "lte_service_forced";
8602
8603        /**
8604         * Ephemeral app cookie max size in bytes.
8605         * <p>
8606         * Type: int
8607         * @hide
8608         */
8609        public static final String EPHEMERAL_COOKIE_MAX_SIZE_BYTES =
8610                "ephemeral_cookie_max_size_bytes";
8611
8612        /**
8613         * A mask applied to the ephemeral hash to generate the hash prefix.
8614         * <p>
8615         * Type: int
8616         *
8617         * @hide
8618         */
8619        public static final String EPHEMERAL_HASH_PREFIX_MASK = "ephemeral_hash_prefix_mask";
8620
8621        /**
8622         * Number of hash prefixes to send during ephemeral resolution.
8623         * <p>
8624         * Type: int
8625         *
8626         * @hide
8627         */
8628        public static final String EPHEMERAL_HASH_PREFIX_COUNT = "ephemeral_hash_prefix_count";
8629
8630        /**
8631         * The duration for caching uninstalled ephemeral apps.
8632         * <p>
8633         * Type: long
8634         * @hide
8635         */
8636        public static final String UNINSTALLED_EPHEMERAL_APP_CACHE_DURATION_MILLIS =
8637                "uninstalled_ephemeral_app_cache_duration_millis";
8638
8639        /**
8640         * Allows switching users when system user is locked.
8641         * <p>
8642         * Type: int
8643         * @hide
8644         */
8645        public static final String ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED =
8646                "allow_user_switching_when_system_user_locked";
8647
8648        /**
8649         * Boot count since the device starts running APK level 24.
8650         * <p>
8651         * Type: int
8652         */
8653        public static final String BOOT_COUNT = "boot_count";
8654
8655        /**
8656         * Whether the safe boot is disallowed.
8657         *
8658         * <p>This setting should have the identical value as the corresponding user restriction.
8659         * The purpose of the setting is to make the restriction available in early boot stages
8660         * before the user restrictions are loaded.
8661         * @hide
8662         */
8663        public static final String SAFE_BOOT_DISALLOWED = "safe_boot_disallowed";
8664
8665        /**
8666         * Whether this device is currently in retail demo mode. If true, device
8667         * usage is severely limited.
8668         * <p>
8669         * Type: int (0 for false, 1 for true)
8670         * @hide
8671         */
8672        public static final String DEVICE_DEMO_MODE = "device_demo_mode";
8673
8674        /**
8675         * Settings to backup. This is here so that it's in the same place as the settings
8676         * keys and easy to update.
8677         *
8678         * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
8679         * and Secure as well.  This is because those tables drive both backup and
8680         * restore, and restore needs to properly whitelist keys that used to live
8681         * in those namespaces.  The keys will only actually be backed up / restored
8682         * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
8683         *
8684         * NOTE: Settings are backed up and restored in the order they appear
8685         *       in this array. If you have one setting depending on another,
8686         *       make sure that they are ordered appropriately.
8687         *
8688         * @hide
8689         */
8690        public static final String[] SETTINGS_TO_BACKUP = {
8691            BUGREPORT_IN_POWER_MENU,
8692            STAY_ON_WHILE_PLUGGED_IN,
8693            AUTO_TIME,
8694            AUTO_TIME_ZONE,
8695            POWER_SOUNDS_ENABLED,
8696            DOCK_SOUNDS_ENABLED,
8697            CHARGING_SOUNDS_ENABLED,
8698            USB_MASS_STORAGE_ENABLED,
8699            ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED,
8700            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
8701            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
8702            WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
8703            WIFI_NUM_OPEN_NETWORKS_KEPT,
8704            EMERGENCY_TONE,
8705            CALL_AUTO_RETRY,
8706            DOCK_AUDIO_MEDIA_ENABLED,
8707            ENCODED_SURROUND_OUTPUT,
8708            LOW_POWER_MODE_TRIGGER_LEVEL
8709        };
8710
8711        // Populated lazily, guarded by class object:
8712        private static NameValueCache sNameValueCache = new NameValueCache(
8713                    CONTENT_URI,
8714                    CALL_METHOD_GET_GLOBAL,
8715                    CALL_METHOD_PUT_GLOBAL);
8716
8717        // Certain settings have been moved from global to the per-user secure namespace
8718        private static final HashSet<String> MOVED_TO_SECURE;
8719        static {
8720            MOVED_TO_SECURE = new HashSet<String>(1);
8721            MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
8722        }
8723
8724        /** @hide */
8725        public static void getMovedToSecureSettings(Set<String> outKeySet) {
8726            outKeySet.addAll(MOVED_TO_SECURE);
8727        }
8728
8729        /**
8730         * Look up a name in the database.
8731         * @param resolver to access the database with
8732         * @param name to look up in the table
8733         * @return the corresponding value, or null if not present
8734         */
8735        public static String getString(ContentResolver resolver, String name) {
8736            return getStringForUser(resolver, name, UserHandle.myUserId());
8737        }
8738
8739        /** @hide */
8740        public static String getStringForUser(ContentResolver resolver, String name,
8741                int userHandle) {
8742            if (MOVED_TO_SECURE.contains(name)) {
8743                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
8744                        + " to android.provider.Settings.Secure, returning read-only value.");
8745                return Secure.getStringForUser(resolver, name, userHandle);
8746            }
8747            return sNameValueCache.getStringForUser(resolver, name, userHandle);
8748        }
8749
8750        /**
8751         * Store a name/value pair into the database.
8752         * @param resolver to access the database with
8753         * @param name to store
8754         * @param value to associate with the name
8755         * @return true if the value was set, false on database errors
8756         */
8757        public static boolean putString(ContentResolver resolver,
8758                String name, String value) {
8759            return putStringForUser(resolver, name, value, UserHandle.myUserId());
8760        }
8761
8762        /** @hide */
8763        public static boolean putStringForUser(ContentResolver resolver,
8764                String name, String value, int userHandle) {
8765            if (LOCAL_LOGV) {
8766                Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
8767                        + " for " + userHandle);
8768            }
8769            // Global and Secure have the same access policy so we can forward writes
8770            if (MOVED_TO_SECURE.contains(name)) {
8771                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
8772                        + " to android.provider.Settings.Secure, value is unchanged.");
8773                return Secure.putStringForUser(resolver, name, value, userHandle);
8774            }
8775            return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
8776        }
8777
8778        /**
8779         * Construct the content URI for a particular name/value pair,
8780         * useful for monitoring changes with a ContentObserver.
8781         * @param name to look up in the table
8782         * @return the corresponding content URI, or null if not present
8783         */
8784        public static Uri getUriFor(String name) {
8785            return getUriFor(CONTENT_URI, name);
8786        }
8787
8788        /**
8789         * Convenience function for retrieving a single secure settings value
8790         * as an integer.  Note that internally setting values are always
8791         * stored as strings; this function converts the string to an integer
8792         * for you.  The default value will be returned if the setting is
8793         * not defined or not an integer.
8794         *
8795         * @param cr The ContentResolver to access.
8796         * @param name The name of the setting to retrieve.
8797         * @param def Value to return if the setting is not defined.
8798         *
8799         * @return The setting's current value, or 'def' if it is not defined
8800         * or not a valid integer.
8801         */
8802        public static int getInt(ContentResolver cr, String name, int def) {
8803            String v = getString(cr, name);
8804            try {
8805                return v != null ? Integer.parseInt(v) : def;
8806            } catch (NumberFormatException e) {
8807                return def;
8808            }
8809        }
8810
8811        /**
8812         * Convenience function for retrieving a single secure settings value
8813         * as an integer.  Note that internally setting values are always
8814         * stored as strings; this function converts the string to an integer
8815         * for you.
8816         * <p>
8817         * This version does not take a default value.  If the setting has not
8818         * been set, or the string value is not a number,
8819         * it throws {@link SettingNotFoundException}.
8820         *
8821         * @param cr The ContentResolver to access.
8822         * @param name The name of the setting to retrieve.
8823         *
8824         * @throws SettingNotFoundException Thrown if a setting by the given
8825         * name can't be found or the setting value is not an integer.
8826         *
8827         * @return The setting's current value.
8828         */
8829        public static int getInt(ContentResolver cr, String name)
8830                throws SettingNotFoundException {
8831            String v = getString(cr, name);
8832            try {
8833                return Integer.parseInt(v);
8834            } catch (NumberFormatException e) {
8835                throw new SettingNotFoundException(name);
8836            }
8837        }
8838
8839        /**
8840         * Convenience function for updating a single settings value as an
8841         * integer. This will either create a new entry in the table if the
8842         * given name does not exist, or modify the value of the existing row
8843         * with that name.  Note that internally setting values are always
8844         * stored as strings, so this function converts the given value to a
8845         * string before storing it.
8846         *
8847         * @param cr The ContentResolver to access.
8848         * @param name The name of the setting to modify.
8849         * @param value The new value for the setting.
8850         * @return true if the value was set, false on database errors
8851         */
8852        public static boolean putInt(ContentResolver cr, String name, int value) {
8853            return putString(cr, name, Integer.toString(value));
8854        }
8855
8856        /**
8857         * Convenience function for retrieving a single secure settings value
8858         * as a {@code long}.  Note that internally setting values are always
8859         * stored as strings; this function converts the string to a {@code long}
8860         * for you.  The default value will be returned if the setting is
8861         * not defined or not a {@code long}.
8862         *
8863         * @param cr The ContentResolver to access.
8864         * @param name The name of the setting to retrieve.
8865         * @param def Value to return if the setting is not defined.
8866         *
8867         * @return The setting's current value, or 'def' if it is not defined
8868         * or not a valid {@code long}.
8869         */
8870        public static long getLong(ContentResolver cr, String name, long def) {
8871            String valString = getString(cr, name);
8872            long value;
8873            try {
8874                value = valString != null ? Long.parseLong(valString) : def;
8875            } catch (NumberFormatException e) {
8876                value = def;
8877            }
8878            return value;
8879        }
8880
8881        /**
8882         * Convenience function for retrieving a single secure settings value
8883         * as a {@code long}.  Note that internally setting values are always
8884         * stored as strings; this function converts the string to a {@code long}
8885         * for you.
8886         * <p>
8887         * This version does not take a default value.  If the setting has not
8888         * been set, or the string value is not a number,
8889         * it throws {@link SettingNotFoundException}.
8890         *
8891         * @param cr The ContentResolver to access.
8892         * @param name The name of the setting to retrieve.
8893         *
8894         * @return The setting's current value.
8895         * @throws SettingNotFoundException Thrown if a setting by the given
8896         * name can't be found or the setting value is not an integer.
8897         */
8898        public static long getLong(ContentResolver cr, String name)
8899                throws SettingNotFoundException {
8900            String valString = getString(cr, name);
8901            try {
8902                return Long.parseLong(valString);
8903            } catch (NumberFormatException e) {
8904                throw new SettingNotFoundException(name);
8905            }
8906        }
8907
8908        /**
8909         * Convenience function for updating a secure settings value as a long
8910         * integer. This will either create a new entry in the table if the
8911         * given name does not exist, or modify the value of the existing row
8912         * with that name.  Note that internally setting values are always
8913         * stored as strings, so this function converts the given value to a
8914         * string before storing it.
8915         *
8916         * @param cr The ContentResolver to access.
8917         * @param name The name of the setting to modify.
8918         * @param value The new value for the setting.
8919         * @return true if the value was set, false on database errors
8920         */
8921        public static boolean putLong(ContentResolver cr, String name, long value) {
8922            return putString(cr, name, Long.toString(value));
8923        }
8924
8925        /**
8926         * Convenience function for retrieving a single secure settings value
8927         * as a floating point number.  Note that internally setting values are
8928         * always stored as strings; this function converts the string to an
8929         * float for you. The default value will be returned if the setting
8930         * is not defined or not a valid float.
8931         *
8932         * @param cr The ContentResolver to access.
8933         * @param name The name of the setting to retrieve.
8934         * @param def Value to return if the setting is not defined.
8935         *
8936         * @return The setting's current value, or 'def' if it is not defined
8937         * or not a valid float.
8938         */
8939        public static float getFloat(ContentResolver cr, String name, float def) {
8940            String v = getString(cr, name);
8941            try {
8942                return v != null ? Float.parseFloat(v) : def;
8943            } catch (NumberFormatException e) {
8944                return def;
8945            }
8946        }
8947
8948        /**
8949         * Convenience function for retrieving a single secure settings value
8950         * as a float.  Note that internally setting values are always
8951         * stored as strings; this function converts the string to a float
8952         * for you.
8953         * <p>
8954         * This version does not take a default value.  If the setting has not
8955         * been set, or the string value is not a number,
8956         * it throws {@link SettingNotFoundException}.
8957         *
8958         * @param cr The ContentResolver to access.
8959         * @param name The name of the setting to retrieve.
8960         *
8961         * @throws SettingNotFoundException Thrown if a setting by the given
8962         * name can't be found or the setting value is not a float.
8963         *
8964         * @return The setting's current value.
8965         */
8966        public static float getFloat(ContentResolver cr, String name)
8967                throws SettingNotFoundException {
8968            String v = getString(cr, name);
8969            if (v == null) {
8970                throw new SettingNotFoundException(name);
8971            }
8972            try {
8973                return Float.parseFloat(v);
8974            } catch (NumberFormatException e) {
8975                throw new SettingNotFoundException(name);
8976            }
8977        }
8978
8979        /**
8980         * Convenience function for updating a single settings value as a
8981         * floating point number. This will either create a new entry in the
8982         * table if the given name does not exist, or modify the value of the
8983         * existing row with that name.  Note that internally setting values
8984         * are always stored as strings, so this function converts the given
8985         * value to a string before storing it.
8986         *
8987         * @param cr The ContentResolver to access.
8988         * @param name The name of the setting to modify.
8989         * @param value The new value for the setting.
8990         * @return true if the value was set, false on database errors
8991         */
8992        public static boolean putFloat(ContentResolver cr, String name, float value) {
8993            return putString(cr, name, Float.toString(value));
8994        }
8995
8996
8997        /**
8998          * Subscription to be used for voice call on a multi sim device. The supported values
8999          * are 0 = SUB1, 1 = SUB2 and etc.
9000          * @hide
9001          */
9002        public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
9003
9004        /**
9005          * Used to provide option to user to select subscription during dial.
9006          * The supported values are 0 = disable or 1 = enable prompt.
9007          * @hide
9008          */
9009        public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
9010
9011        /**
9012          * Subscription to be used for data call on a multi sim device. The supported values
9013          * are 0 = SUB1, 1 = SUB2 and etc.
9014          * @hide
9015          */
9016        public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
9017
9018        /**
9019          * Subscription to be used for SMS on a multi sim device. The supported values
9020          * are 0 = SUB1, 1 = SUB2 and etc.
9021          * @hide
9022          */
9023        public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
9024
9025       /**
9026          * Used to provide option to user to select subscription during send SMS.
9027          * The value 1 - enable, 0 - disable
9028          * @hide
9029          */
9030        public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";
9031
9032
9033
9034        /** User preferred subscriptions setting.
9035          * This holds the details of the user selected subscription from the card and
9036          * the activation status. Each settings string have the coma separated values
9037          * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
9038          * @hide
9039         */
9040        public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
9041                "user_preferred_sub2","user_preferred_sub3"};
9042
9043        /**
9044         * Whether to enable new contacts aggregator or not.
9045         * The value 1 - enable, 0 - disable
9046         * @hide
9047         */
9048        public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";
9049
9050        /**
9051         * Whether to enable contacts metadata syncing or not
9052         * The value 1 - enable, 0 - disable
9053         *
9054         * @removed
9055         */
9056        @Deprecated
9057        public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";
9058
9059        /**
9060         * Whether to enable contacts metadata syncing or not
9061         * The value 1 - enable, 0 - disable
9062         */
9063        public static final String CONTACT_METADATA_SYNC_ENABLED = "contact_metadata_sync_enabled";
9064
9065        /**
9066         * Whether to enable cellular on boot.
9067         * The value 1 - enable, 0 - disable
9068         * @hide
9069         */
9070        public static final String ENABLE_CELLULAR_ON_BOOT = "enable_cellular_on_boot";
9071
9072        /**
9073         * Whether toggling OEM unlock is disallowed. If disallowed, it is not possible to enable or
9074         * disable OEM unlock.
9075         * <p>
9076         * Type: int (0: allow OEM unlock setting. 1: disallow OEM unlock)
9077         * @hide
9078         */
9079        public static final String OEM_UNLOCK_DISALLOWED = "oem_unlock_disallowed";
9080
9081        /**
9082         * The maximum allowed notification enqueue rate in Hertz.
9083         *
9084         * Should be a float, and includes both posts and updates.
9085         * @hide
9086         */
9087        public static final String MAX_NOTIFICATION_ENQUEUE_RATE = "max_notification_enqueue_rate";
9088
9089        /**
9090         * Whether SystemUI navigation keys is enabled.
9091         * @hide
9092         */
9093        public static final String SYSTEM_NAVIGATION_KEYS_ENABLED =
9094                "system_navigation_keys_enabled";
9095
9096        /**
9097         * Whether cell is enabled/disabled
9098         * @hide
9099         */
9100        public static final String CELL_ON = "cell_on";
9101    }
9102
9103    /**
9104     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
9105     * Intent URL, allowing it to be either a web page or a particular
9106     * application activity.
9107     *
9108     * @hide
9109     */
9110    public static final class Bookmarks implements BaseColumns
9111    {
9112        private static final String TAG = "Bookmarks";
9113
9114        /**
9115         * The content:// style URL for this table
9116         */
9117        public static final Uri CONTENT_URI =
9118            Uri.parse("content://" + AUTHORITY + "/bookmarks");
9119
9120        /**
9121         * The row ID.
9122         * <p>Type: INTEGER</p>
9123         */
9124        public static final String ID = "_id";
9125
9126        /**
9127         * Descriptive name of the bookmark that can be displayed to the user.
9128         * If this is empty, the title should be resolved at display time (use
9129         * {@link #getTitle(Context, Cursor)} any time you want to display the
9130         * title of a bookmark.)
9131         * <P>
9132         * Type: TEXT
9133         * </P>
9134         */
9135        public static final String TITLE = "title";
9136
9137        /**
9138         * Arbitrary string (displayed to the user) that allows bookmarks to be
9139         * organized into categories.  There are some special names for
9140         * standard folders, which all start with '@'.  The label displayed for
9141         * the folder changes with the locale (via {@link #getLabelForFolder}) but
9142         * the folder name does not change so you can consistently query for
9143         * the folder regardless of the current locale.
9144         *
9145         * <P>Type: TEXT</P>
9146         *
9147         */
9148        public static final String FOLDER = "folder";
9149
9150        /**
9151         * The Intent URL of the bookmark, describing what it points to.  This
9152         * value is given to {@link android.content.Intent#getIntent} to create
9153         * an Intent that can be launched.
9154         * <P>Type: TEXT</P>
9155         */
9156        public static final String INTENT = "intent";
9157
9158        /**
9159         * Optional shortcut character associated with this bookmark.
9160         * <P>Type: INTEGER</P>
9161         */
9162        public static final String SHORTCUT = "shortcut";
9163
9164        /**
9165         * The order in which the bookmark should be displayed
9166         * <P>Type: INTEGER</P>
9167         */
9168        public static final String ORDERING = "ordering";
9169
9170        private static final String[] sIntentProjection = { INTENT };
9171        private static final String[] sShortcutProjection = { ID, SHORTCUT };
9172        private static final String sShortcutSelection = SHORTCUT + "=?";
9173
9174        /**
9175         * Convenience function to retrieve the bookmarked Intent for a
9176         * particular shortcut key.
9177         *
9178         * @param cr The ContentResolver to query.
9179         * @param shortcut The shortcut key.
9180         *
9181         * @return Intent The bookmarked URL, or null if there is no bookmark
9182         *         matching the given shortcut.
9183         */
9184        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
9185        {
9186            Intent intent = null;
9187
9188            Cursor c = cr.query(CONTENT_URI,
9189                    sIntentProjection, sShortcutSelection,
9190                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
9191            // Keep trying until we find a valid shortcut
9192            try {
9193                while (intent == null && c.moveToNext()) {
9194                    try {
9195                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
9196                        intent = Intent.parseUri(intentURI, 0);
9197                    } catch (java.net.URISyntaxException e) {
9198                        // The stored URL is bad...  ignore it.
9199                    } catch (IllegalArgumentException e) {
9200                        // Column not found
9201                        Log.w(TAG, "Intent column not found", e);
9202                    }
9203                }
9204            } finally {
9205                if (c != null) c.close();
9206            }
9207
9208            return intent;
9209        }
9210
9211        /**
9212         * Add a new bookmark to the system.
9213         *
9214         * @param cr The ContentResolver to query.
9215         * @param intent The desired target of the bookmark.
9216         * @param title Bookmark title that is shown to the user; null if none
9217         *            or it should be resolved to the intent's title.
9218         * @param folder Folder in which to place the bookmark; null if none.
9219         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
9220         *            this is non-zero and there is an existing bookmark entry
9221         *            with this same shortcut, then that existing shortcut is
9222         *            cleared (the bookmark is not removed).
9223         * @return The unique content URL for the new bookmark entry.
9224         */
9225        public static Uri add(ContentResolver cr,
9226                                           Intent intent,
9227                                           String title,
9228                                           String folder,
9229                                           char shortcut,
9230                                           int ordering)
9231        {
9232            // If a shortcut is supplied, and it is already defined for
9233            // another bookmark, then remove the old definition.
9234            if (shortcut != 0) {
9235                cr.delete(CONTENT_URI, sShortcutSelection,
9236                        new String[] { String.valueOf((int) shortcut) });
9237            }
9238
9239            ContentValues values = new ContentValues();
9240            if (title != null) values.put(TITLE, title);
9241            if (folder != null) values.put(FOLDER, folder);
9242            values.put(INTENT, intent.toUri(0));
9243            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
9244            values.put(ORDERING, ordering);
9245            return cr.insert(CONTENT_URI, values);
9246        }
9247
9248        /**
9249         * Return the folder name as it should be displayed to the user.  This
9250         * takes care of localizing special folders.
9251         *
9252         * @param r Resources object for current locale; only need access to
9253         *          system resources.
9254         * @param folder The value found in the {@link #FOLDER} column.
9255         *
9256         * @return CharSequence The label for this folder that should be shown
9257         *         to the user.
9258         */
9259        public static CharSequence getLabelForFolder(Resources r, String folder) {
9260            return folder;
9261        }
9262
9263        /**
9264         * Return the title as it should be displayed to the user. This takes
9265         * care of localizing bookmarks that point to activities.
9266         *
9267         * @param context A context.
9268         * @param cursor A cursor pointing to the row whose title should be
9269         *        returned. The cursor must contain at least the {@link #TITLE}
9270         *        and {@link #INTENT} columns.
9271         * @return A title that is localized and can be displayed to the user,
9272         *         or the empty string if one could not be found.
9273         */
9274        public static CharSequence getTitle(Context context, Cursor cursor) {
9275            int titleColumn = cursor.getColumnIndex(TITLE);
9276            int intentColumn = cursor.getColumnIndex(INTENT);
9277            if (titleColumn == -1 || intentColumn == -1) {
9278                throw new IllegalArgumentException(
9279                        "The cursor must contain the TITLE and INTENT columns.");
9280            }
9281
9282            String title = cursor.getString(titleColumn);
9283            if (!TextUtils.isEmpty(title)) {
9284                return title;
9285            }
9286
9287            String intentUri = cursor.getString(intentColumn);
9288            if (TextUtils.isEmpty(intentUri)) {
9289                return "";
9290            }
9291
9292            Intent intent;
9293            try {
9294                intent = Intent.parseUri(intentUri, 0);
9295            } catch (URISyntaxException e) {
9296                return "";
9297            }
9298
9299            PackageManager packageManager = context.getPackageManager();
9300            ResolveInfo info = packageManager.resolveActivity(intent, 0);
9301            return info != null ? info.loadLabel(packageManager) : "";
9302        }
9303    }
9304
9305    /**
9306     * Returns the device ID that we should use when connecting to the mobile gtalk server.
9307     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
9308     * from the GoogleLoginService.
9309     *
9310     * @param androidId The Android ID for this device.
9311     * @return The device ID that should be used when connecting to the mobile gtalk server.
9312     * @hide
9313     */
9314    public static String getGTalkDeviceId(long androidId) {
9315        return "android-" + Long.toHexString(androidId);
9316    }
9317
9318    private static final String[] PM_WRITE_SETTINGS = {
9319        android.Manifest.permission.WRITE_SETTINGS
9320    };
9321    private static final String[] PM_CHANGE_NETWORK_STATE = {
9322        android.Manifest.permission.CHANGE_NETWORK_STATE,
9323        android.Manifest.permission.WRITE_SETTINGS
9324    };
9325    private static final String[] PM_SYSTEM_ALERT_WINDOW = {
9326        android.Manifest.permission.SYSTEM_ALERT_WINDOW
9327    };
9328
9329    /**
9330     * Performs a strict and comprehensive check of whether a calling package is allowed to
9331     * write/modify system settings, as the condition differs for pre-M, M+, and
9332     * privileged/preinstalled apps. If the provided uid does not match the
9333     * callingPackage, a negative result will be returned.
9334     * @hide
9335     */
9336    public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
9337            String callingPackage, boolean throwException) {
9338        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9339                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9340                PM_WRITE_SETTINGS, false);
9341    }
9342
9343    /**
9344     * Performs a strict and comprehensive check of whether a calling package is allowed to
9345     * write/modify system settings, as the condition differs for pre-M, M+, and
9346     * privileged/preinstalled apps. If the provided uid does not match the
9347     * callingPackage, a negative result will be returned. The caller is expected to have
9348     * the WRITE_SETTINGS permission declared.
9349     *
9350     * Note: if the check is successful, the operation of this app will be updated to the
9351     * current time.
9352     * @hide
9353     */
9354    public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
9355            String callingPackage, boolean throwException) {
9356        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9357                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9358                PM_WRITE_SETTINGS, true);
9359    }
9360
9361    /**
9362     * Performs a strict and comprehensive check of whether a calling package is allowed to
9363     * change the state of network, as the condition differs for pre-M, M+, and
9364     * privileged/preinstalled apps. The caller is expected to have either the
9365     * CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
9366     * permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
9367     * can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
9368     * permission and cannot be revoked. See http://b/23597341
9369     *
9370     * Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
9371     * of this app will be updated to the current time.
9372     * @hide
9373     */
9374    public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
9375            String callingPackage, boolean throwException) {
9376        if (context.checkCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE)
9377                == PackageManager.PERMISSION_GRANTED) {
9378            return true;
9379        }
9380        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9381                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
9382                PM_CHANGE_NETWORK_STATE, true);
9383    }
9384
9385    /**
9386     * Performs a strict and comprehensive check of whether a calling package is allowed to
9387     * draw on top of other apps, as the conditions differs for pre-M, M+, and
9388     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
9389     * a negative result will be returned.
9390     * @hide
9391     */
9392    public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
9393            String callingPackage, boolean throwException) {
9394        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9395                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
9396                PM_SYSTEM_ALERT_WINDOW, false);
9397    }
9398
9399    /**
9400     * Performs a strict and comprehensive check of whether a calling package is allowed to
9401     * draw on top of other apps, as the conditions differs for pre-M, M+, and
9402     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
9403     * a negative result will be returned.
9404     *
9405     * Note: if the check is successful, the operation of this app will be updated to the
9406     * current time.
9407     * @hide
9408     */
9409    public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
9410            callingPackage, boolean throwException) {
9411        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
9412                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
9413                PM_SYSTEM_ALERT_WINDOW, true);
9414    }
9415
9416    /**
9417     * Helper method to perform a general and comprehensive check of whether an operation that is
9418     * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
9419     * OP_WRITE_SETTINGS
9420     * @hide
9421     */
9422    public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
9423            int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
9424            permissions, boolean makeNote) {
9425        if (callingPackage == null) {
9426            return false;
9427        }
9428
9429        AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
9430        int mode = AppOpsManager.MODE_DEFAULT;
9431        if (makeNote) {
9432            mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
9433        } else {
9434            mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
9435        }
9436
9437        switch (mode) {
9438            case AppOpsManager.MODE_ALLOWED:
9439                return true;
9440
9441            case AppOpsManager.MODE_DEFAULT:
9442                // this is the default operating mode after an app's installation
9443                // In this case we will check all associated static permission to see
9444                // if it is granted during install time.
9445                for (String permission : permissions) {
9446                    if (context.checkCallingOrSelfPermission(permission) == PackageManager
9447                            .PERMISSION_GRANTED) {
9448                        // if either of the permissions are granted, we will allow it
9449                        return true;
9450                    }
9451                }
9452
9453            default:
9454                // this is for all other cases trickled down here...
9455                if (!throwException) {
9456                    return false;
9457                }
9458        }
9459
9460        // prepare string to throw SecurityException
9461        StringBuilder exceptionMessage = new StringBuilder();
9462        exceptionMessage.append(callingPackage);
9463        exceptionMessage.append(" was not granted ");
9464        if (permissions.length > 1) {
9465            exceptionMessage.append(" either of these permissions: ");
9466        } else {
9467            exceptionMessage.append(" this permission: ");
9468        }
9469        for (int i = 0; i < permissions.length; i++) {
9470            exceptionMessage.append(permissions[i]);
9471            exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
9472        }
9473
9474        throw new SecurityException(exceptionMessage.toString());
9475    }
9476
9477    /**
9478     * Retrieves a correponding package name for a given uid. It will query all
9479     * packages that are associated with the given uid, but it will return only
9480     * the zeroth result.
9481     * Note: If package could not be found, a null is returned.
9482     * @hide
9483     */
9484    public static String getPackageNameForUid(Context context, int uid) {
9485        String[] packages = context.getPackageManager().getPackagesForUid(uid);
9486        if (packages == null) {
9487            return null;
9488        }
9489        return packages[0];
9490    }
9491}
9492