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      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 
     17 package android.provider;
     18 
     19 import android.annotation.SdkConstant;
     20 import android.annotation.SdkConstant.SdkConstantType;
     21 import android.annotation.SystemApi;
     22 import android.app.ActivityThread;
     23 import android.app.AppOpsManager;
     24 import android.app.Application;
     25 import android.app.SearchManager;
     26 import android.app.WallpaperManager;
     27 import android.content.ComponentName;
     28 import android.content.ContentResolver;
     29 import android.content.ContentValues;
     30 import android.content.Context;
     31 import android.content.IContentProvider;
     32 import android.content.Intent;
     33 import android.content.pm.ActivityInfo;
     34 import android.content.pm.PackageManager;
     35 import android.content.pm.ResolveInfo;
     36 import android.content.res.Configuration;
     37 import android.content.res.Resources;
     38 import android.database.Cursor;
     39 import android.database.SQLException;
     40 import android.location.LocationManager;
     41 import android.net.ConnectivityManager;
     42 import android.net.Uri;
     43 import android.net.wifi.WifiManager;
     44 import android.os.BatteryManager;
     45 import android.os.Binder;
     46 import android.os.Bundle;
     47 import android.os.DropBoxManager;
     48 import android.os.IBinder;
     49 import android.os.Process;
     50 import android.os.RemoteException;
     51 import android.os.ServiceManager;
     52 import android.os.SystemProperties;
     53 import android.os.UserHandle;
     54 import android.os.Build.VERSION_CODES;
     55 import android.speech.tts.TextToSpeech;
     56 import android.text.TextUtils;
     57 import android.util.AndroidException;
     58 import android.util.ArrayMap;
     59 import android.util.ArraySet;
     60 import android.util.Log;
     61 
     62 import com.android.internal.util.ArrayUtils;
     63 import com.android.internal.widget.ILockSettings;
     64 
     65 import java.net.URISyntaxException;
     66 import java.text.SimpleDateFormat;
     67 import java.util.HashMap;
     68 import java.util.HashSet;
     69 import java.util.Locale;
     70 import java.util.Map;
     71 import java.util.Set;
     72 
     73 /**
     74  * The Settings provider contains global system-level device preferences.
     75  */
     76 public final class Settings {
     77 
     78     // Intent actions for Settings
     79 
     80     /**
     81      * Activity Action: Show system settings.
     82      * <p>
     83      * Input: Nothing.
     84      * <p>
     85      * Output: Nothing.
     86      */
     87     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     88     public static final String ACTION_SETTINGS = "android.settings.SETTINGS";
     89 
     90     /**
     91      * Activity Action: Show settings to allow configuration of APNs.
     92      * <p>
     93      * Input: Nothing.
     94      * <p>
     95      * Output: Nothing.
     96      */
     97     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     98     public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";
     99 
    100     /**
    101      * Activity Action: Show settings to allow configuration of current location
    102      * sources.
    103      * <p>
    104      * In some cases, a matching Activity may not exist, so ensure you
    105      * safeguard against this.
    106      * <p>
    107      * Input: Nothing.
    108      * <p>
    109      * Output: Nothing.
    110      */
    111     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    112     public static final String ACTION_LOCATION_SOURCE_SETTINGS =
    113             "android.settings.LOCATION_SOURCE_SETTINGS";
    114 
    115     /**
    116      * Activity Action: Show settings to allow configuration of wireless controls
    117      * such as Wi-Fi, Bluetooth and Mobile networks.
    118      * <p>
    119      * In some cases, a matching Activity may not exist, so ensure you
    120      * safeguard against this.
    121      * <p>
    122      * Input: Nothing.
    123      * <p>
    124      * Output: Nothing.
    125      */
    126     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    127     public static final String ACTION_WIRELESS_SETTINGS =
    128             "android.settings.WIRELESS_SETTINGS";
    129 
    130     /**
    131      * Activity Action: Show settings to allow entering/exiting airplane mode.
    132      * <p>
    133      * In some cases, a matching Activity may not exist, so ensure you
    134      * safeguard against this.
    135      * <p>
    136      * Input: Nothing.
    137      * <p>
    138      * Output: Nothing.
    139      */
    140     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    141     public static final String ACTION_AIRPLANE_MODE_SETTINGS =
    142             "android.settings.AIRPLANE_MODE_SETTINGS";
    143 
    144     /**
    145      * Activity Action: Modify Airplane mode settings using a voice command.
    146      * <p>
    147      * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
    148      * <p>
    149      * This intent MUST be started using
    150      * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
    151      * startVoiceActivity}.
    152      * <p>
    153      * Note: The activity implementing this intent MUST verify that
    154      * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
    155      * modifying the setting.
    156      * <p>
    157      * Input: To tell which state airplane mode should be set to, add the
    158      * {@link #EXTRA_AIRPLANE_MODE_ENABLED} extra to this Intent with the state specified.
    159      * If the extra is not included, no changes will be made.
    160      * <p>
    161      * Output: Nothing.
    162      */
    163     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    164     public static final String ACTION_VOICE_CONTROL_AIRPLANE_MODE =
    165             "android.settings.VOICE_CONTROL_AIRPLANE_MODE";
    166 
    167     /**
    168      * Activity Action: Show settings for accessibility modules.
    169      * <p>
    170      * In some cases, a matching Activity may not exist, so ensure you
    171      * safeguard against this.
    172      * <p>
    173      * Input: Nothing.
    174      * <p>
    175      * Output: Nothing.
    176      */
    177     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    178     public static final String ACTION_ACCESSIBILITY_SETTINGS =
    179             "android.settings.ACCESSIBILITY_SETTINGS";
    180 
    181     /**
    182      * Activity Action: Show settings to control access to usage information.
    183      * <p>
    184      * In some cases, a matching Activity may not exist, so ensure you
    185      * safeguard against this.
    186      * <p>
    187      * Input: Nothing.
    188      * <p>
    189      * Output: Nothing.
    190      */
    191     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    192     public static final String ACTION_USAGE_ACCESS_SETTINGS =
    193             "android.settings.USAGE_ACCESS_SETTINGS";
    194 
    195     /**
    196      * Activity Category: Show application settings related to usage access.
    197      * <p>
    198      * An activity that provides a user interface for adjusting usage access related
    199      * preferences for its containing application. Optional but recommended for apps that
    200      * use {@link android.Manifest.permission#PACKAGE_USAGE_STATS}.
    201      * <p>
    202      * The activity may define meta-data to describe what usage access is
    203      * used for within their app with {@link #METADATA_USAGE_ACCESS_REASON}, which
    204      * will be displayed in Settings.
    205      * <p>
    206      * Input: Nothing.
    207      * <p>
    208      * Output: Nothing.
    209      */
    210     @SdkConstant(SdkConstantType.INTENT_CATEGORY)
    211     public static final String INTENT_CATEGORY_USAGE_ACCESS_CONFIG =
    212             "android.intent.category.USAGE_ACCESS_CONFIG";
    213 
    214     /**
    215      * Metadata key: Reason for needing usage access.
    216      * <p>
    217      * A key for metadata attached to an activity that receives action
    218      * {@link #INTENT_CATEGORY_USAGE_ACCESS_CONFIG}, shown to the
    219      * user as description of how the app uses usage access.
    220      * <p>
    221      */
    222     public static final String METADATA_USAGE_ACCESS_REASON =
    223             "android.settings.metadata.USAGE_ACCESS_REASON";
    224 
    225     /**
    226      * Activity Action: Show settings to allow configuration of security and
    227      * location privacy.
    228      * <p>
    229      * In some cases, a matching Activity may not exist, so ensure you
    230      * safeguard against this.
    231      * <p>
    232      * Input: Nothing.
    233      * <p>
    234      * Output: Nothing.
    235      */
    236     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    237     public static final String ACTION_SECURITY_SETTINGS =
    238             "android.settings.SECURITY_SETTINGS";
    239 
    240     /**
    241      * Activity Action: Show trusted credentials settings, opening to the user tab,
    242      * to allow management of installed credentials.
    243      * <p>
    244      * In some cases, a matching Activity may not exist, so ensure you
    245      * safeguard against this.
    246      * <p>
    247      * Input: Nothing.
    248      * <p>
    249      * Output: Nothing.
    250      * @hide
    251      */
    252     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    253     public static final String ACTION_TRUSTED_CREDENTIALS_USER =
    254             "com.android.settings.TRUSTED_CREDENTIALS_USER";
    255 
    256     /**
    257      * Activity Action: Show dialog explaining that an installed CA cert may enable
    258      * monitoring of encrypted network traffic.
    259      * <p>
    260      * In some cases, a matching Activity may not exist, so ensure you
    261      * safeguard against this.
    262      * <p>
    263      * Input: Nothing.
    264      * <p>
    265      * Output: Nothing.
    266      * @hide
    267      */
    268     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    269     public static final String ACTION_MONITORING_CERT_INFO =
    270             "com.android.settings.MONITORING_CERT_INFO";
    271 
    272     /**
    273      * Activity Action: Show settings to allow configuration of privacy options.
    274      * <p>
    275      * In some cases, a matching Activity may not exist, so ensure you
    276      * safeguard against this.
    277      * <p>
    278      * Input: Nothing.
    279      * <p>
    280      * Output: Nothing.
    281      */
    282     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    283     public static final String ACTION_PRIVACY_SETTINGS =
    284             "android.settings.PRIVACY_SETTINGS";
    285 
    286     /**
    287      * Activity Action: Show settings to allow configuration of Wi-Fi.
    288      * <p>
    289      * In some cases, a matching Activity may not exist, so ensure you
    290      * safeguard against this.
    291      * <p>
    292      * Input: Nothing.
    293      * <p>
    294      * Output: Nothing.
    295 
    296      */
    297     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    298     public static final String ACTION_WIFI_SETTINGS =
    299             "android.settings.WIFI_SETTINGS";
    300 
    301     /**
    302      * Activity Action: Show settings to allow configuration of a static IP
    303      * address for Wi-Fi.
    304      * <p>
    305      * In some cases, a matching Activity may not exist, so ensure you safeguard
    306      * against this.
    307      * <p>
    308      * Input: Nothing.
    309      * <p>
    310      * Output: Nothing.
    311      */
    312     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    313     public static final String ACTION_WIFI_IP_SETTINGS =
    314             "android.settings.WIFI_IP_SETTINGS";
    315 
    316     /**
    317      * Activity Action: Show settings to allow configuration of Bluetooth.
    318      * <p>
    319      * In some cases, a matching Activity may not exist, so ensure you
    320      * safeguard against this.
    321      * <p>
    322      * Input: Nothing.
    323      * <p>
    324      * Output: Nothing.
    325      */
    326     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    327     public static final String ACTION_BLUETOOTH_SETTINGS =
    328             "android.settings.BLUETOOTH_SETTINGS";
    329 
    330     /**
    331      * Activity Action: Show settings to allow configuration of cast endpoints.
    332      * <p>
    333      * In some cases, a matching Activity may not exist, so ensure you
    334      * safeguard against this.
    335      * <p>
    336      * Input: Nothing.
    337      * <p>
    338      * Output: Nothing.
    339      */
    340     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    341     public static final String ACTION_CAST_SETTINGS =
    342             "android.settings.CAST_SETTINGS";
    343 
    344     /**
    345      * Activity Action: Show settings to allow configuration of date and time.
    346      * <p>
    347      * In some cases, a matching Activity may not exist, so ensure you
    348      * safeguard against this.
    349      * <p>
    350      * Input: Nothing.
    351      * <p>
    352      * Output: Nothing.
    353      */
    354     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    355     public static final String ACTION_DATE_SETTINGS =
    356             "android.settings.DATE_SETTINGS";
    357 
    358     /**
    359      * Activity Action: Show settings to allow configuration of sound and volume.
    360      * <p>
    361      * In some cases, a matching Activity may not exist, so ensure you
    362      * safeguard 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_SOUND_SETTINGS =
    370             "android.settings.SOUND_SETTINGS";
    371 
    372     /**
    373      * Activity Action: Show settings to allow configuration of display.
    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_DISPLAY_SETTINGS =
    384             "android.settings.DISPLAY_SETTINGS";
    385 
    386     /**
    387      * Activity Action: Show settings to allow configuration of locale.
    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_LOCALE_SETTINGS =
    398             "android.settings.LOCALE_SETTINGS";
    399 
    400     /**
    401      * Activity Action: Show settings to configure input methods, in particular
    402      * allowing the user to enable input methods.
    403      * <p>
    404      * In some cases, a matching Activity may not exist, so ensure you
    405      * safeguard against this.
    406      * <p>
    407      * Input: Nothing.
    408      * <p>
    409      * Output: Nothing.
    410      */
    411     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    412     public static final String ACTION_VOICE_INPUT_SETTINGS =
    413             "android.settings.VOICE_INPUT_SETTINGS";
    414 
    415     /**
    416      * Activity Action: Show settings to configure input methods, in particular
    417      * allowing the user to enable input methods.
    418      * <p>
    419      * In some cases, a matching Activity may not exist, so ensure you
    420      * safeguard against this.
    421      * <p>
    422      * Input: Nothing.
    423      * <p>
    424      * Output: Nothing.
    425      */
    426     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    427     public static final String ACTION_INPUT_METHOD_SETTINGS =
    428             "android.settings.INPUT_METHOD_SETTINGS";
    429 
    430     /**
    431      * Activity Action: Show settings to enable/disable input method subtypes.
    432      * <p>
    433      * In some cases, a matching Activity may not exist, so ensure you
    434      * safeguard against this.
    435      * <p>
    436      * To tell which input method's subtypes are displayed in the settings, add
    437      * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
    438      * If there is no extra in this Intent, subtypes from all installed input methods
    439      * will be displayed in the settings.
    440      *
    441      * @see android.view.inputmethod.InputMethodInfo#getId
    442      * <p>
    443      * Input: Nothing.
    444      * <p>
    445      * Output: Nothing.
    446      */
    447     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    448     public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
    449             "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";
    450 
    451     /**
    452      * Activity Action: Show a dialog to select input method.
    453      * <p>
    454      * In some cases, a matching Activity may not exist, so ensure you
    455      * safeguard against this.
    456      * <p>
    457      * Input: Nothing.
    458      * <p>
    459      * Output: Nothing.
    460      * @hide
    461      */
    462     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    463     public static final String ACTION_SHOW_INPUT_METHOD_PICKER =
    464             "android.settings.SHOW_INPUT_METHOD_PICKER";
    465 
    466     /**
    467      * Activity Action: Show settings to manage the user input dictionary.
    468      * <p>
    469      * Starting with {@link android.os.Build.VERSION_CODES#KITKAT},
    470      * it is guaranteed there will always be an appropriate implementation for this Intent action.
    471      * In prior releases of the platform this was optional, so ensure you safeguard against it.
    472      * <p>
    473      * Input: Nothing.
    474      * <p>
    475      * Output: Nothing.
    476      */
    477     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    478     public static final String ACTION_USER_DICTIONARY_SETTINGS =
    479             "android.settings.USER_DICTIONARY_SETTINGS";
    480 
    481     /**
    482      * Activity Action: Adds a word to the user dictionary.
    483      * <p>
    484      * In some cases, a matching Activity may not exist, so ensure you
    485      * safeguard against this.
    486      * <p>
    487      * Input: An extra with key <code>word</code> that contains the word
    488      * that should be added to the dictionary.
    489      * <p>
    490      * Output: Nothing.
    491      *
    492      * @hide
    493      */
    494     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    495     public static final String ACTION_USER_DICTIONARY_INSERT =
    496             "com.android.settings.USER_DICTIONARY_INSERT";
    497 
    498     /**
    499      * Activity Action: Show settings to allow configuration of application-related settings.
    500      * <p>
    501      * In some cases, a matching Activity may not exist, so ensure you
    502      * safeguard against this.
    503      * <p>
    504      * Input: Nothing.
    505      * <p>
    506      * Output: Nothing.
    507      */
    508     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    509     public static final String ACTION_APPLICATION_SETTINGS =
    510             "android.settings.APPLICATION_SETTINGS";
    511 
    512     /**
    513      * Activity Action: Show settings to allow configuration of application
    514      * development-related settings.  As of
    515      * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} this action is
    516      * a required part of the platform.
    517      * <p>
    518      * Input: Nothing.
    519      * <p>
    520      * Output: Nothing.
    521      */
    522     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    523     public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
    524             "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";
    525 
    526     /**
    527      * Activity Action: Show settings to allow configuration of quick launch shortcuts.
    528      * <p>
    529      * In some cases, a matching Activity may not exist, so ensure you
    530      * safeguard against this.
    531      * <p>
    532      * Input: Nothing.
    533      * <p>
    534      * Output: Nothing.
    535      */
    536     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    537     public static final String ACTION_QUICK_LAUNCH_SETTINGS =
    538             "android.settings.QUICK_LAUNCH_SETTINGS";
    539 
    540     /**
    541      * Activity Action: Show settings to manage installed applications.
    542      * <p>
    543      * In some cases, a matching Activity may not exist, so ensure you
    544      * safeguard against this.
    545      * <p>
    546      * Input: Nothing.
    547      * <p>
    548      * Output: Nothing.
    549      */
    550     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    551     public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
    552             "android.settings.MANAGE_APPLICATIONS_SETTINGS";
    553 
    554     /**
    555      * Activity Action: Show settings to manage all applications.
    556      * <p>
    557      * In some cases, a matching Activity may not exist, so ensure you
    558      * safeguard against this.
    559      * <p>
    560      * Input: Nothing.
    561      * <p>
    562      * Output: Nothing.
    563      */
    564     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    565     public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
    566             "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";
    567 
    568     /**
    569      * Activity Action: Show screen for controlling which apps can draw on top of other apps.
    570      * <p>
    571      * In some cases, a matching Activity may not exist, so ensure you
    572      * safeguard against this.
    573      * <p>
    574      * Input: Optionally, the Intent's data URI can specify the application package name to
    575      * directly invoke the management GUI specific to the package name. For example
    576      * "package:com.my.app".
    577      * <p>
    578      * Output: Nothing.
    579      */
    580     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    581     public static final String ACTION_MANAGE_OVERLAY_PERMISSION =
    582             "android.settings.action.MANAGE_OVERLAY_PERMISSION";
    583 
    584     /**
    585      * Activity Action: Show screen for controlling which apps are allowed to write/modify
    586      * system settings.
    587      * <p>
    588      * In some cases, a matching Activity may not exist, so ensure you
    589      * safeguard against this.
    590      * <p>
    591      * Input: Optionally, the Intent's data URI can specify the application package name to
    592      * directly invoke the management GUI specific to the package name. For example
    593      * "package:com.my.app".
    594      * <p>
    595      * Output: Nothing.
    596      */
    597     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    598     public static final String ACTION_MANAGE_WRITE_SETTINGS =
    599             "android.settings.action.MANAGE_WRITE_SETTINGS";
    600 
    601     /**
    602      * Activity Action: Show screen of details about a particular application.
    603      * <p>
    604      * In some cases, a matching Activity may not exist, so ensure you
    605      * safeguard against this.
    606      * <p>
    607      * Input: The Intent's data URI specifies the application package name
    608      * to be shown, with the "package" scheme.  That is "package:com.my.app".
    609      * <p>
    610      * Output: Nothing.
    611      */
    612     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    613     public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
    614             "android.settings.APPLICATION_DETAILS_SETTINGS";
    615 
    616     /**
    617      * Activity Action: Show screen for controlling which apps can ignore battery optimizations.
    618      * <p>
    619      * Input: Nothing.
    620      * <p>
    621      * Output: Nothing.
    622      * <p>
    623      * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
    624      * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
    625      * already ignoring optimizations.  You can use
    626      * {@link #ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS} to ask the user to put you
    627      * on this list.
    628      */
    629     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    630     public static final String ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS =
    631             "android.settings.IGNORE_BATTERY_OPTIMIZATION_SETTINGS";
    632 
    633     /**
    634      * Activity Action: Ask the user to allow an to ignore battery optimizations (that is,
    635      * put them on the whitelist of apps shown by
    636      * {@link #ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS}).  For an app to use this, it also
    637      * must hold the {@link android.Manifest.permission#REQUEST_IGNORE_BATTERY_OPTIMIZATIONS}
    638      * permission.
    639      * <p><b>Note:</b> most applications should <em>not</em> use this; there are many facilities
    640      * provided by the platform for applications to operate correctly in the various power
    641      * saving mode.  This is only for unusual applications that need to deeply control their own
    642      * execution, at the potential expense of the user's battery life.  Note that these applications
    643      * greatly run the risk of showing to the user has how power consumers on their device.</p>
    644      * <p>
    645      * Input: The Intent's data URI must specify the application package name
    646      * to be shown, with the "package" scheme.  That is "package:com.my.app".
    647      * <p>
    648      * Output: Nothing.
    649      * <p>
    650      * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
    651      * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
    652      * already ignoring optimizations.
    653      */
    654     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    655     public static final String ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS =
    656             "android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS";
    657 
    658     /**
    659      * @hide
    660      * Activity Action: Show the "app ops" settings screen.
    661      * <p>
    662      * Input: Nothing.
    663      * <p>
    664      * Output: Nothing.
    665      */
    666     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    667     public static final String ACTION_APP_OPS_SETTINGS =
    668             "android.settings.APP_OPS_SETTINGS";
    669 
    670     /**
    671      * Activity Action: Show settings for system update functionality.
    672      * <p>
    673      * In some cases, a matching Activity may not exist, so ensure you
    674      * safeguard against this.
    675      * <p>
    676      * Input: Nothing.
    677      * <p>
    678      * Output: Nothing.
    679      *
    680      * @hide
    681      */
    682     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    683     public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
    684             "android.settings.SYSTEM_UPDATE_SETTINGS";
    685 
    686     /**
    687      * Activity Action: Show settings to allow configuration of sync settings.
    688      * <p>
    689      * In some cases, a matching Activity may not exist, so ensure you
    690      * safeguard against this.
    691      * <p>
    692      * The account types available to add via the add account button may be restricted by adding an
    693      * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
    694      * authorities. Only account types which can sync with that content provider will be offered to
    695      * the user.
    696      * <p>
    697      * Input: Nothing.
    698      * <p>
    699      * Output: Nothing.
    700      */
    701     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    702     public static final String ACTION_SYNC_SETTINGS =
    703             "android.settings.SYNC_SETTINGS";
    704 
    705     /**
    706      * Activity Action: Show add account screen for creating a new account.
    707      * <p>
    708      * In some cases, a matching Activity may not exist, so ensure you
    709      * safeguard against this.
    710      * <p>
    711      * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
    712      * extra to the Intent with one or more syncable content provider's authorities.  Only account
    713      * types which can sync with that content provider will be offered to the user.
    714      * <p>
    715      * Account types can also be filtered by adding an {@link #EXTRA_ACCOUNT_TYPES} extra to the
    716      * Intent with one or more account types.
    717      * <p>
    718      * Input: Nothing.
    719      * <p>
    720      * Output: Nothing.
    721      */
    722     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    723     public static final String ACTION_ADD_ACCOUNT =
    724             "android.settings.ADD_ACCOUNT_SETTINGS";
    725 
    726     /**
    727      * Activity Action: Show settings for selecting the network operator.
    728      * <p>
    729      * In some cases, a matching Activity may not exist, so ensure you
    730      * safeguard against this.
    731      * <p>
    732      * Input: Nothing.
    733      * <p>
    734      * Output: Nothing.
    735      */
    736     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    737     public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
    738             "android.settings.NETWORK_OPERATOR_SETTINGS";
    739 
    740     /**
    741      * Activity Action: Show settings for selection of 2G/3G.
    742      * <p>
    743      * In some cases, a matching Activity may not exist, so ensure you
    744      * safeguard against this.
    745      * <p>
    746      * Input: Nothing.
    747      * <p>
    748      * Output: Nothing.
    749      */
    750     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    751     public static final String ACTION_DATA_ROAMING_SETTINGS =
    752             "android.settings.DATA_ROAMING_SETTINGS";
    753 
    754     /**
    755      * Activity Action: Show settings for internal storage.
    756      * <p>
    757      * In some cases, a matching Activity may not exist, so ensure you
    758      * safeguard against this.
    759      * <p>
    760      * Input: Nothing.
    761      * <p>
    762      * Output: Nothing.
    763      */
    764     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    765     public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
    766             "android.settings.INTERNAL_STORAGE_SETTINGS";
    767     /**
    768      * Activity Action: Show settings for memory card storage.
    769      * <p>
    770      * In some cases, a matching Activity may not exist, so ensure you
    771      * safeguard against this.
    772      * <p>
    773      * Input: Nothing.
    774      * <p>
    775      * Output: Nothing.
    776      */
    777     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    778     public static final String ACTION_MEMORY_CARD_SETTINGS =
    779             "android.settings.MEMORY_CARD_SETTINGS";
    780 
    781     /**
    782      * Activity Action: Show settings for global search.
    783      * <p>
    784      * In some cases, a matching Activity may not exist, so ensure you
    785      * safeguard against this.
    786      * <p>
    787      * Input: Nothing.
    788      * <p>
    789      * Output: Nothing
    790      */
    791     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    792     public static final String ACTION_SEARCH_SETTINGS =
    793         "android.search.action.SEARCH_SETTINGS";
    794 
    795     /**
    796      * Activity Action: Show general device information settings (serial
    797      * number, software version, phone number, etc.).
    798      * <p>
    799      * In some cases, a matching Activity may not exist, so ensure you
    800      * safeguard against this.
    801      * <p>
    802      * Input: Nothing.
    803      * <p>
    804      * Output: Nothing
    805      */
    806     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    807     public static final String ACTION_DEVICE_INFO_SETTINGS =
    808         "android.settings.DEVICE_INFO_SETTINGS";
    809 
    810     /**
    811      * Activity Action: Show NFC settings.
    812      * <p>
    813      * This shows UI that allows NFC to be turned on or off.
    814      * <p>
    815      * In some cases, a matching Activity may not exist, so ensure you
    816      * safeguard against this.
    817      * <p>
    818      * Input: Nothing.
    819      * <p>
    820      * Output: Nothing
    821      * @see android.nfc.NfcAdapter#isEnabled()
    822      */
    823     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    824     public static final String ACTION_NFC_SETTINGS = "android.settings.NFC_SETTINGS";
    825 
    826     /**
    827      * Activity Action: Show NFC Sharing settings.
    828      * <p>
    829      * This shows UI that allows NDEF Push (Android Beam) to be turned on or
    830      * off.
    831      * <p>
    832      * In some cases, a matching Activity may not exist, so ensure you
    833      * safeguard against this.
    834      * <p>
    835      * Input: Nothing.
    836      * <p>
    837      * Output: Nothing
    838      * @see android.nfc.NfcAdapter#isNdefPushEnabled()
    839      */
    840     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    841     public static final String ACTION_NFCSHARING_SETTINGS =
    842         "android.settings.NFCSHARING_SETTINGS";
    843 
    844     /**
    845      * Activity Action: Show NFC Tap & Pay settings
    846      * <p>
    847      * This shows UI that allows the user to configure Tap&Pay
    848      * settings.
    849      * <p>
    850      * In some cases, a matching Activity may not exist, so ensure you
    851      * safeguard against this.
    852      * <p>
    853      * Input: Nothing.
    854      * <p>
    855      * Output: Nothing
    856      */
    857     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    858     public static final String ACTION_NFC_PAYMENT_SETTINGS =
    859         "android.settings.NFC_PAYMENT_SETTINGS";
    860 
    861     /**
    862      * Activity Action: Show Daydream settings.
    863      * <p>
    864      * In some cases, a matching Activity may not exist, so ensure you
    865      * safeguard against this.
    866      * <p>
    867      * Input: Nothing.
    868      * <p>
    869      * Output: Nothing.
    870      * @see android.service.dreams.DreamService
    871      */
    872     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    873     public static final String ACTION_DREAM_SETTINGS = "android.settings.DREAM_SETTINGS";
    874 
    875     /**
    876      * Activity Action: Show Notification listener settings.
    877      * <p>
    878      * In some cases, a matching Activity may not exist, so ensure you
    879      * safeguard against this.
    880      * <p>
    881      * Input: Nothing.
    882      * <p>
    883      * Output: Nothing.
    884      * @see android.service.notification.NotificationListenerService
    885      */
    886     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    887     public static final String ACTION_NOTIFICATION_LISTENER_SETTINGS
    888             = "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS";
    889 
    890     /**
    891      * Activity Action: Show Do Not Disturb access settings.
    892      * <p>
    893      * Users can grant and deny access to Do Not Disturb configuration from here.
    894      * See {@link android.app.NotificationManager#isNotificationPolicyAccessGranted()} for more
    895      * details.
    896      * <p>
    897      * Input: Nothing.
    898      * <p>
    899      * Output: Nothing.
    900      */
    901     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    902     public static final String ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS
    903             = "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS";
    904 
    905     /**
    906      * @hide
    907      */
    908     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    909     public static final String ACTION_CONDITION_PROVIDER_SETTINGS
    910             = "android.settings.ACTION_CONDITION_PROVIDER_SETTINGS";
    911 
    912     /**
    913      * Activity Action: Show settings for video captioning.
    914      * <p>
    915      * In some cases, a matching Activity may not exist, so ensure you safeguard
    916      * against this.
    917      * <p>
    918      * Input: Nothing.
    919      * <p>
    920      * Output: Nothing.
    921      */
    922     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    923     public static final String ACTION_CAPTIONING_SETTINGS = "android.settings.CAPTIONING_SETTINGS";
    924 
    925     /**
    926      * Activity Action: Show the top level print settings.
    927      * <p>
    928      * In some cases, a matching Activity may not exist, so ensure you
    929      * safeguard against this.
    930      * <p>
    931      * Input: Nothing.
    932      * <p>
    933      * Output: Nothing.
    934      */
    935     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    936     public static final String ACTION_PRINT_SETTINGS =
    937             "android.settings.ACTION_PRINT_SETTINGS";
    938 
    939     /**
    940      * Activity Action: Show Zen Mode configuration settings.
    941      *
    942      * @hide
    943      */
    944     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    945     public static final String ACTION_ZEN_MODE_SETTINGS = "android.settings.ZEN_MODE_SETTINGS";
    946 
    947     /**
    948      * Activity Action: Show Zen Mode priority configuration settings.
    949      *
    950      * @hide
    951      */
    952     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    953     public static final String ACTION_ZEN_MODE_PRIORITY_SETTINGS
    954             = "android.settings.ZEN_MODE_PRIORITY_SETTINGS";
    955 
    956     /**
    957      * Activity Action: Show Zen Mode automation configuration settings.
    958      *
    959      * @hide
    960      */
    961     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    962     public static final String ACTION_ZEN_MODE_AUTOMATION_SETTINGS
    963             = "android.settings.ZEN_MODE_AUTOMATION_SETTINGS";
    964 
    965     /**
    966      * Activity Action: Modify do not disturb mode settings.
    967      * <p>
    968      * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
    969      * <p>
    970      * This intent MUST be started using
    971      * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
    972      * startVoiceActivity}.
    973      * <p>
    974      * Note: The Activity implementing this intent MUST verify that
    975      * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction}.
    976      * returns true before modifying the setting.
    977      * <p>
    978      * Input: The optional {@link #EXTRA_DO_NOT_DISTURB_MODE_MINUTES} extra can be used to indicate
    979      * how long the user wishes to avoid interruptions for. The optional
    980      * {@link #EXTRA_DO_NOT_DISTURB_MODE_ENABLED} extra can be to indicate if the user is
    981      * enabling or disabling do not disturb mode. If either extra is not included, the
    982      * user maybe asked to provide the value.
    983      * <p>
    984      * Output: Nothing.
    985      */
    986     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    987     public static final String ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE =
    988             "android.settings.VOICE_CONTROL_DO_NOT_DISTURB_MODE";
    989 
    990     /**
    991      * Activity Action: Show Zen Mode schedule rule configuration settings.
    992      *
    993      * @hide
    994      */
    995     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    996     public static final String ACTION_ZEN_MODE_SCHEDULE_RULE_SETTINGS
    997             = "android.settings.ZEN_MODE_SCHEDULE_RULE_SETTINGS";
    998 
    999     /**
   1000      * Activity Action: Show Zen Mode event rule configuration settings.
   1001      *
   1002      * @hide
   1003      */
   1004     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1005     public static final String ACTION_ZEN_MODE_EVENT_RULE_SETTINGS
   1006             = "android.settings.ZEN_MODE_EVENT_RULE_SETTINGS";
   1007 
   1008     /**
   1009      * Activity Action: Show Zen Mode external rule configuration settings.
   1010      *
   1011      * @hide
   1012      */
   1013     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1014     public static final String ACTION_ZEN_MODE_EXTERNAL_RULE_SETTINGS
   1015             = "android.settings.ZEN_MODE_EXTERNAL_RULE_SETTINGS";
   1016 
   1017     /**
   1018      * Activity Action: Show the regulatory information screen for the device.
   1019      * <p>
   1020      * In some cases, a matching Activity may not exist, so ensure you safeguard
   1021      * against this.
   1022      * <p>
   1023      * Input: Nothing.
   1024      * <p>
   1025      * Output: Nothing.
   1026      */
   1027     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1028     public static final String
   1029             ACTION_SHOW_REGULATORY_INFO = "android.settings.SHOW_REGULATORY_INFO";
   1030 
   1031     /**
   1032      * Activity Action: Show Device Name Settings.
   1033      * <p>
   1034      * In some cases, a matching Activity may not exist, so ensure you safeguard
   1035      * against this.
   1036      *
   1037      * @hide
   1038      */
   1039     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1040     public static final String DEVICE_NAME_SETTINGS = "android.settings.DEVICE_NAME";
   1041 
   1042     /**
   1043      * Activity Action: Show pairing settings.
   1044      * <p>
   1045      * In some cases, a matching Activity may not exist, so ensure you safeguard
   1046      * against this.
   1047      *
   1048      * @hide
   1049      */
   1050     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1051     public static final String ACTION_PAIRING_SETTINGS = "android.settings.PAIRING_SETTINGS";
   1052 
   1053     /**
   1054      * Activity Action: Show battery saver settings.
   1055      * <p>
   1056      * In some cases, a matching Activity may not exist, so ensure you safeguard
   1057      * against this.
   1058      */
   1059     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1060     public static final String ACTION_BATTERY_SAVER_SETTINGS
   1061             = "android.settings.BATTERY_SAVER_SETTINGS";
   1062 
   1063     /**
   1064      * Activity Action: Modify Battery Saver mode setting using a voice command.
   1065      * <p>
   1066      * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
   1067      * <p>
   1068      * This intent MUST be started using
   1069      * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
   1070      * startVoiceActivity}.
   1071      * <p>
   1072      * Note: The activity implementing this intent MUST verify that
   1073      * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
   1074      * modifying the setting.
   1075      * <p>
   1076      * Input: To tell which state batter saver mode should be set to, add the
   1077      * {@link #EXTRA_BATTERY_SAVER_MODE_ENABLED} extra to this Intent with the state specified.
   1078      * If the extra is not included, no changes will be made.
   1079      * <p>
   1080      * Output: Nothing.
   1081      */
   1082     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1083     public static final String ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE =
   1084             "android.settings.VOICE_CONTROL_BATTERY_SAVER_MODE";
   1085 
   1086     /**
   1087      * Activity Action: Show Home selection settings. If there are multiple activities
   1088      * that can satisfy the {@link Intent#CATEGORY_HOME} intent, this screen allows you
   1089      * to pick your preferred activity.
   1090      */
   1091     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1092     public static final String ACTION_HOME_SETTINGS
   1093             = "android.settings.HOME_SETTINGS";
   1094 
   1095     /**
   1096      * Activity Action: Show notification settings.
   1097      *
   1098      * @hide
   1099      */
   1100     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1101     public static final String ACTION_NOTIFICATION_SETTINGS
   1102             = "android.settings.NOTIFICATION_SETTINGS";
   1103 
   1104     /**
   1105      * Activity Action: Show notification settings for a single app.
   1106      *
   1107      * @hide
   1108      */
   1109     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1110     public static final String ACTION_APP_NOTIFICATION_SETTINGS
   1111             = "android.settings.APP_NOTIFICATION_SETTINGS";
   1112 
   1113     /**
   1114      * Activity Action: Show notification redaction settings.
   1115      *
   1116      * @hide
   1117      */
   1118     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
   1119     public static final String ACTION_APP_NOTIFICATION_REDACTION
   1120             = "android.settings.ACTION_APP_NOTIFICATION_REDACTION";
   1121 
   1122     /** @hide */ public static final String EXTRA_APP_UID = "app_uid";
   1123     /** @hide */ public static final String EXTRA_APP_PACKAGE = "app_package";
   1124 
   1125     // End of Intent actions for Settings
   1126 
   1127     /**
   1128      * @hide - Private call() method on SettingsProvider to read from 'system' table.
   1129      */
   1130     public static final String CALL_METHOD_GET_SYSTEM = "GET_system";
   1131 
   1132     /**
   1133      * @hide - Private call() method on SettingsProvider to read from 'secure' table.
   1134      */
   1135     public static final String CALL_METHOD_GET_SECURE = "GET_secure";
   1136 
   1137     /**
   1138      * @hide - Private call() method on SettingsProvider to read from 'global' table.
   1139      */
   1140     public static final String CALL_METHOD_GET_GLOBAL = "GET_global";
   1141 
   1142     /**
   1143      * @hide - User handle argument extra to the fast-path call()-based requests
   1144      */
   1145     public static final String CALL_METHOD_USER_KEY = "_user";
   1146 
   1147     /** @hide - Private call() method to write to 'system' table */
   1148     public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
   1149 
   1150     /** @hide - Private call() method to write to 'secure' table */
   1151     public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
   1152 
   1153     /** @hide - Private call() method to write to 'global' table */
   1154     public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";
   1155 
   1156     /**
   1157      * Activity Extra: Limit available options in launched activity based on the given authority.
   1158      * <p>
   1159      * This can be passed as an extra field in an Activity Intent with one or more syncable content
   1160      * provider's authorities as a String[]. This field is used by some intents to alter the
   1161      * behavior of the called activity.
   1162      * <p>
   1163      * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
   1164      * on the authority given.
   1165      */
   1166     public static final String EXTRA_AUTHORITIES = "authorities";
   1167 
   1168     /**
   1169      * Activity Extra: Limit available options in launched activity based on the given account
   1170      * types.
   1171      * <p>
   1172      * This can be passed as an extra field in an Activity Intent with one or more account types
   1173      * as a String[]. This field is used by some intents to alter the behavior of the called
   1174      * activity.
   1175      * <p>
   1176      * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
   1177      * list.
   1178      */
   1179     public static final String EXTRA_ACCOUNT_TYPES = "account_types";
   1180 
   1181     public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";
   1182 
   1183     /**
   1184      * Activity Extra: The device identifier to act upon.
   1185      * <p>
   1186      * This can be passed as an extra field in an Activity Intent with a single
   1187      * InputDeviceIdentifier. This field is used by some activities to jump straight into the
   1188      * settings for the given device.
   1189      * <p>
   1190      * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
   1191      * dialog for the given device.
   1192      * @hide
   1193      */
   1194     public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";
   1195 
   1196     /**
   1197      * Activity Extra: Enable or disable Airplane Mode.
   1198      * <p>
   1199      * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
   1200      * intent as a boolean to indicate if it should be enabled.
   1201      */
   1202     public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";
   1203 
   1204     /**
   1205      * Activity Extra: Enable or disable Battery saver mode.
   1206      * <p>
   1207      * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
   1208      * intent as a boolean to indicate if it should be enabled.
   1209      */
   1210     public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
   1211             "android.settings.extra.battery_saver_mode_enabled";
   1212 
   1213     /**
   1214      * Activity Extra: Enable or disable Do Not Disturb mode.
   1215      * <p>
   1216      * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
   1217      * intent as a boolean to indicate if it should be enabled.
   1218      */
   1219     public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
   1220             "android.settings.extra.do_not_disturb_mode_enabled";
   1221 
   1222     /**
   1223      * Activity Extra: How many minutes to enable do not disturb mode for.
   1224      * <p>
   1225      * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
   1226      * intent to indicate how long do not disturb mode should be enabled for.
   1227      */
   1228     public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
   1229             "android.settings.extra.do_not_disturb_mode_minutes";
   1230 
   1231     private static final String JID_RESOURCE_PREFIX = "android";
   1232 
   1233     public static final String AUTHORITY = "settings";
   1234 
   1235     private static final String TAG = "Settings";
   1236     private static final boolean LOCAL_LOGV = false;
   1237 
   1238     // Lock ensures that when enabling/disabling the master location switch, we don't end up
   1239     // with a partial enable/disable state in multi-threaded situations.
   1240     private static final Object mLocationSettingsLock = new Object();
   1241 
   1242     public static class SettingNotFoundException extends AndroidException {
   1243         public SettingNotFoundException(String msg) {
   1244             super(msg);
   1245         }
   1246     }
   1247 
   1248     /**
   1249      * Common base for tables of name/value settings.
   1250      */
   1251     public static class NameValueTable implements BaseColumns {
   1252         public static final String NAME = "name";
   1253         public static final String VALUE = "value";
   1254 
   1255         protected static boolean putString(ContentResolver resolver, Uri uri,
   1256                 String name, String value) {
   1257             // The database will take care of replacing duplicates.
   1258             try {
   1259                 ContentValues values = new ContentValues();
   1260                 values.put(NAME, name);
   1261                 values.put(VALUE, value);
   1262                 resolver.insert(uri, values);
   1263                 return true;
   1264             } catch (SQLException e) {
   1265                 Log.w(TAG, "Can't set key " + name + " in " + uri, e);
   1266                 return false;
   1267             }
   1268         }
   1269 
   1270         public static Uri getUriFor(Uri uri, String name) {
   1271             return Uri.withAppendedPath(uri, name);
   1272         }
   1273     }
   1274 
   1275     // Thread-safe.
   1276     private static class NameValueCache {
   1277         private final String mVersionSystemProperty;
   1278         private final Uri mUri;
   1279 
   1280         private static final String[] SELECT_VALUE =
   1281             new String[] { Settings.NameValueTable.VALUE };
   1282         private static final String NAME_EQ_PLACEHOLDER = "name=?";
   1283 
   1284         // Must synchronize on 'this' to access mValues and mValuesVersion.
   1285         private final HashMap<String, String> mValues = new HashMap<String, String>();
   1286         private long mValuesVersion = 0;
   1287 
   1288         // Initially null; set lazily and held forever.  Synchronized on 'this'.
   1289         private IContentProvider mContentProvider = null;
   1290 
   1291         // The method we'll call (or null, to not use) on the provider
   1292         // for the fast path of retrieving settings.
   1293         private final String mCallGetCommand;
   1294         private final String mCallSetCommand;
   1295 
   1296         public NameValueCache(String versionSystemProperty, Uri uri,
   1297                 String getCommand, String setCommand) {
   1298             mVersionSystemProperty = versionSystemProperty;
   1299             mUri = uri;
   1300             mCallGetCommand = getCommand;
   1301             mCallSetCommand = setCommand;
   1302         }
   1303 
   1304         private IContentProvider lazyGetProvider(ContentResolver cr) {
   1305             IContentProvider cp = null;
   1306             synchronized (this) {
   1307                 cp = mContentProvider;
   1308                 if (cp == null) {
   1309                     cp = mContentProvider = cr.acquireProvider(mUri.getAuthority());
   1310                 }
   1311             }
   1312             return cp;
   1313         }
   1314 
   1315         public boolean putStringForUser(ContentResolver cr, String name, String value,
   1316                 final int userHandle) {
   1317             try {
   1318                 Bundle arg = new Bundle();
   1319                 arg.putString(Settings.NameValueTable.VALUE, value);
   1320                 arg.putInt(CALL_METHOD_USER_KEY, userHandle);
   1321                 IContentProvider cp = lazyGetProvider(cr);
   1322                 cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
   1323             } catch (RemoteException e) {
   1324                 Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
   1325                 return false;
   1326             }
   1327             return true;
   1328         }
   1329 
   1330         public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
   1331             final boolean isSelf = (userHandle == UserHandle.myUserId());
   1332             if (isSelf) {
   1333                 long newValuesVersion = SystemProperties.getLong(mVersionSystemProperty, 0);
   1334 
   1335                 // Our own user's settings data uses a client-side cache
   1336                 synchronized (this) {
   1337                     if (mValuesVersion != newValuesVersion) {
   1338                         if (LOCAL_LOGV || false) {
   1339                             Log.v(TAG, "invalidate [" + mUri.getLastPathSegment() + "]: current "
   1340                                     + newValuesVersion + " != cached " + mValuesVersion);
   1341                         }
   1342 
   1343                         mValues.clear();
   1344                         mValuesVersion = newValuesVersion;
   1345                     }
   1346 
   1347                     if (mValues.containsKey(name)) {
   1348                         return mValues.get(name);  // Could be null, that's OK -- negative caching
   1349                     }
   1350                 }
   1351             } else {
   1352                 if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
   1353                         + " by user " + UserHandle.myUserId() + " so skipping cache");
   1354             }
   1355 
   1356             IContentProvider cp = lazyGetProvider(cr);
   1357 
   1358             // Try the fast path first, not using query().  If this
   1359             // fails (alternate Settings provider that doesn't support
   1360             // this interface?) then we fall back to the query/table
   1361             // interface.
   1362             if (mCallGetCommand != null) {
   1363                 try {
   1364                     Bundle args = null;
   1365                     if (!isSelf) {
   1366                         args = new Bundle();
   1367                         args.putInt(CALL_METHOD_USER_KEY, userHandle);
   1368                     }
   1369                     Bundle b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
   1370                     if (b != null) {
   1371                         String value = b.getPairValue();
   1372                         // Don't update our cache for reads of other users' data
   1373                         if (isSelf) {
   1374                             synchronized (this) {
   1375                                 mValues.put(name, value);
   1376                             }
   1377                         } else {
   1378                             if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
   1379                                     + " by " + UserHandle.myUserId()
   1380                                     + " so not updating cache");
   1381                         }
   1382                         return value;
   1383                     }
   1384                     // If the response Bundle is null, we fall through
   1385                     // to the query interface below.
   1386                 } catch (RemoteException e) {
   1387                     // Not supported by the remote side?  Fall through
   1388                     // to query().
   1389                 }
   1390             }
   1391 
   1392             Cursor c = null;
   1393             try {
   1394                 c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE, NAME_EQ_PLACEHOLDER,
   1395                              new String[]{name}, null, null);
   1396                 if (c == null) {
   1397                     Log.w(TAG, "Can't get key " + name + " from " + mUri);
   1398                     return null;
   1399                 }
   1400 
   1401                 String value = c.moveToNext() ? c.getString(0) : null;
   1402                 synchronized (this) {
   1403                     mValues.put(name, value);
   1404                 }
   1405                 if (LOCAL_LOGV) {
   1406                     Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
   1407                             name + " = " + (value == null ? "(null)" : value));
   1408                 }
   1409                 return value;
   1410             } catch (RemoteException e) {
   1411                 Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
   1412                 return null;  // Return null, but don't cache it.
   1413             } finally {
   1414                 if (c != null) c.close();
   1415             }
   1416         }
   1417     }
   1418 
   1419     /**
   1420      * An app can use this method to check if it is currently allowed to draw on top of other
   1421      * apps. In order to be allowed to do so, an app must first declare the
   1422      * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its manifest. If it
   1423      * is currently disallowed, it can prompt the user to grant it this capability through a
   1424      * management UI by sending an Intent with action
   1425      * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}.
   1426      *
   1427      * @param context A context
   1428      * @return true if the calling app can draw on top of other apps, false otherwise.
   1429      */
   1430     public static boolean canDrawOverlays(Context context) {
   1431         int uid = Binder.getCallingUid();
   1432         return Settings.isCallingPackageAllowedToDrawOverlays(context, uid, Settings
   1433                 .getPackageNameForUid(context, uid), false);
   1434     }
   1435 
   1436     /**
   1437      * An app can use this method to check if it is currently allowed to change the network
   1438      * state. In order to be allowed to do so, an app must first declare either the
   1439      * {@link android.Manifest.permission#CHANGE_NETWORK_STATE} or
   1440      * {@link android.Manifest.permission#WRITE_SETTINGS} permission in its manifest. If it
   1441      * is currently disallowed, it can prompt the user to grant it this capability through a
   1442      * management UI by sending an Intent with action
   1443      * {@link android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}.
   1444      *
   1445      * @param context A context
   1446      * @return true if the calling app can change the state of network, false otherwise.
   1447      * @hide
   1448      */
   1449     public static boolean canChangeNetworkState(Context context) {
   1450         int uid = Binder.getCallingUid();
   1451         return Settings.isCallingPackageAllowedToChangeNetworkState(context, uid, Settings
   1452                 .getPackageNameForUid(context, uid), false);
   1453     }
   1454 
   1455     /**
   1456      * System settings, containing miscellaneous system preferences.  This
   1457      * table holds simple name/value pairs.  There are convenience
   1458      * functions for accessing individual settings entries.
   1459      */
   1460     public static final class System extends NameValueTable {
   1461         public static final String SYS_PROP_SETTING_VERSION = "sys.settings_system_version";
   1462 
   1463         /** @hide */
   1464         public static interface Validator {
   1465             public boolean validate(String value);
   1466         }
   1467 
   1468         /**
   1469          * The content:// style URL for this table
   1470          */
   1471         public static final Uri CONTENT_URI =
   1472             Uri.parse("content://" + AUTHORITY + "/system");
   1473 
   1474         private static final NameValueCache sNameValueCache = new NameValueCache(
   1475                 SYS_PROP_SETTING_VERSION,
   1476                 CONTENT_URI,
   1477                 CALL_METHOD_GET_SYSTEM,
   1478                 CALL_METHOD_PUT_SYSTEM);
   1479 
   1480         private static final HashSet<String> MOVED_TO_SECURE;
   1481         static {
   1482             MOVED_TO_SECURE = new HashSet<String>(30);
   1483             MOVED_TO_SECURE.add(Secure.ANDROID_ID);
   1484             MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
   1485             MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
   1486             MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
   1487             MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
   1488             MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
   1489             MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
   1490             MOVED_TO_SECURE.add(Secure.LOGGING_ID);
   1491             MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
   1492             MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
   1493             MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
   1494             MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
   1495             MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
   1496             MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
   1497             MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
   1498             MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
   1499             MOVED_TO_SECURE.add(Secure.WIFI_ON);
   1500             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
   1501             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
   1502             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
   1503             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
   1504             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
   1505             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
   1506             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
   1507             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
   1508             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
   1509             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
   1510             MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);
   1511 
   1512             // At one time in System, then Global, but now back in Secure
   1513             MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
   1514         }
   1515 
   1516         private static final HashSet<String> MOVED_TO_GLOBAL;
   1517         private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
   1518         static {
   1519             MOVED_TO_GLOBAL = new HashSet<String>();
   1520             MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<String>();
   1521 
   1522             // these were originally in system but migrated to secure in the past,
   1523             // so are duplicated in the Secure.* namespace
   1524             MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
   1525             MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
   1526             MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
   1527             MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
   1528             MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
   1529             MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);
   1530 
   1531             // these are moving directly from system to global
   1532             MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
   1533             MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
   1534             MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
   1535             MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
   1536             MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
   1537             MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
   1538             MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
   1539             MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
   1540             MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
   1541             MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
   1542             MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
   1543             MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
   1544             MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
   1545             MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
   1546             MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
   1547             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
   1548             MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
   1549             MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
   1550             MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
   1551             MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
   1552             MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
   1553             MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
   1554             MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
   1555             MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
   1556             MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
   1557             MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
   1558             MOVED_TO_GLOBAL.add(Settings.Global.SHOW_PROCESSES);
   1559             MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
   1560             MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
   1561             MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
   1562             MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
   1563             MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
   1564             MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
   1565             MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
   1566             MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
   1567             MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
   1568         }
   1569 
   1570         private static final Validator sBooleanValidator =
   1571                 new DiscreteValueValidator(new String[] {"0", "1"});
   1572 
   1573         private static final Validator sNonNegativeIntegerValidator = new Validator() {
   1574             @Override
   1575             public boolean validate(String value) {
   1576                 try {
   1577                     return Integer.parseInt(value) >= 0;
   1578                 } catch (NumberFormatException e) {
   1579                     return false;
   1580                 }
   1581             }
   1582         };
   1583 
   1584         private static final Validator sUriValidator = new Validator() {
   1585             @Override
   1586             public boolean validate(String value) {
   1587                 try {
   1588                     Uri.decode(value);
   1589                     return true;
   1590                 } catch (IllegalArgumentException e) {
   1591                     return false;
   1592                 }
   1593             }
   1594         };
   1595 
   1596         private static final Validator sLenientIpAddressValidator = new Validator() {
   1597             private static final int MAX_IPV6_LENGTH = 45;
   1598 
   1599             @Override
   1600             public boolean validate(String value) {
   1601                 return value.length() <= MAX_IPV6_LENGTH;
   1602             }
   1603         };
   1604 
   1605         /** @hide */
   1606         public static void getMovedToGlobalSettings(Set<String> outKeySet) {
   1607             outKeySet.addAll(MOVED_TO_GLOBAL);
   1608             outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
   1609         }
   1610 
   1611         /** @hide */
   1612         public static void getMovedToSecureSettings(Set<String> outKeySet) {
   1613             outKeySet.addAll(MOVED_TO_SECURE);
   1614         }
   1615 
   1616         /** @hide */
   1617         public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
   1618             outKeySet.addAll(MOVED_TO_GLOBAL);
   1619         }
   1620 
   1621         /**
   1622          * Look up a name in the database.
   1623          * @param resolver to access the database with
   1624          * @param name to look up in the table
   1625          * @return the corresponding value, or null if not present
   1626          */
   1627         public static String getString(ContentResolver resolver, String name) {
   1628             return getStringForUser(resolver, name, UserHandle.myUserId());
   1629         }
   1630 
   1631         /** @hide */
   1632         public static String getStringForUser(ContentResolver resolver, String name,
   1633                 int userHandle) {
   1634             if (MOVED_TO_SECURE.contains(name)) {
   1635                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   1636                         + " to android.provider.Settings.Secure, returning read-only value.");
   1637                 return Secure.getStringForUser(resolver, name, userHandle);
   1638             }
   1639             if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
   1640                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   1641                         + " to android.provider.Settings.Global, returning read-only value.");
   1642                 return Global.getStringForUser(resolver, name, userHandle);
   1643             }
   1644             return sNameValueCache.getStringForUser(resolver, name, userHandle);
   1645         }
   1646 
   1647         /**
   1648          * Store a name/value pair into the database.
   1649          * @param resolver to access the database with
   1650          * @param name to store
   1651          * @param value to associate with the name
   1652          * @return true if the value was set, false on database errors
   1653          */
   1654         public static boolean putString(ContentResolver resolver, String name, String value) {
   1655             return putStringForUser(resolver, name, value, UserHandle.myUserId());
   1656         }
   1657 
   1658         /** @hide */
   1659         public static boolean putStringForUser(ContentResolver resolver, String name, String value,
   1660                 int userHandle) {
   1661             if (MOVED_TO_SECURE.contains(name)) {
   1662                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   1663                         + " to android.provider.Settings.Secure, value is unchanged.");
   1664                 return false;
   1665             }
   1666             if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
   1667                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   1668                         + " to android.provider.Settings.Global, value is unchanged.");
   1669                 return false;
   1670             }
   1671             return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
   1672         }
   1673 
   1674         /**
   1675          * Construct the content URI for a particular name/value pair,
   1676          * useful for monitoring changes with a ContentObserver.
   1677          * @param name to look up in the table
   1678          * @return the corresponding content URI, or null if not present
   1679          */
   1680         public static Uri getUriFor(String name) {
   1681             if (MOVED_TO_SECURE.contains(name)) {
   1682                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   1683                     + " to android.provider.Settings.Secure, returning Secure URI.");
   1684                 return Secure.getUriFor(Secure.CONTENT_URI, name);
   1685             }
   1686             if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
   1687                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   1688                         + " to android.provider.Settings.Global, returning read-only global URI.");
   1689                 return Global.getUriFor(Global.CONTENT_URI, name);
   1690             }
   1691             return getUriFor(CONTENT_URI, name);
   1692         }
   1693 
   1694         /**
   1695          * Convenience function for retrieving a single system settings value
   1696          * as an integer.  Note that internally setting values are always
   1697          * stored as strings; this function converts the string to an integer
   1698          * for you.  The default value will be returned if the setting is
   1699          * not defined or not an integer.
   1700          *
   1701          * @param cr The ContentResolver to access.
   1702          * @param name The name of the setting to retrieve.
   1703          * @param def Value to return if the setting is not defined.
   1704          *
   1705          * @return The setting's current value, or 'def' if it is not defined
   1706          * or not a valid integer.
   1707          */
   1708         public static int getInt(ContentResolver cr, String name, int def) {
   1709             return getIntForUser(cr, name, def, UserHandle.myUserId());
   1710         }
   1711 
   1712         /** @hide */
   1713         public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
   1714             String v = getStringForUser(cr, name, userHandle);
   1715             try {
   1716                 return v != null ? Integer.parseInt(v) : def;
   1717             } catch (NumberFormatException e) {
   1718                 return def;
   1719             }
   1720         }
   1721 
   1722         /**
   1723          * Convenience function for retrieving a single system settings value
   1724          * as an integer.  Note that internally setting values are always
   1725          * stored as strings; this function converts the string to an integer
   1726          * for you.
   1727          * <p>
   1728          * This version does not take a default value.  If the setting has not
   1729          * been set, or the string value is not a number,
   1730          * it throws {@link SettingNotFoundException}.
   1731          *
   1732          * @param cr The ContentResolver to access.
   1733          * @param name The name of the setting to retrieve.
   1734          *
   1735          * @throws SettingNotFoundException Thrown if a setting by the given
   1736          * name can't be found or the setting value is not an integer.
   1737          *
   1738          * @return The setting's current value.
   1739          */
   1740         public static int getInt(ContentResolver cr, String name)
   1741                 throws SettingNotFoundException {
   1742             return getIntForUser(cr, name, UserHandle.myUserId());
   1743         }
   1744 
   1745         /** @hide */
   1746         public static int getIntForUser(ContentResolver cr, String name, int userHandle)
   1747                 throws SettingNotFoundException {
   1748             String v = getStringForUser(cr, name, userHandle);
   1749             try {
   1750                 return Integer.parseInt(v);
   1751             } catch (NumberFormatException e) {
   1752                 throw new SettingNotFoundException(name);
   1753             }
   1754         }
   1755 
   1756         /**
   1757          * Convenience function for updating a single settings value as an
   1758          * integer. This will either create a new entry in the table if the
   1759          * given name does not exist, or modify the value of the existing row
   1760          * with that name.  Note that internally setting values are always
   1761          * stored as strings, so this function converts the given value to a
   1762          * string before storing it.
   1763          *
   1764          * @param cr The ContentResolver to access.
   1765          * @param name The name of the setting to modify.
   1766          * @param value The new value for the setting.
   1767          * @return true if the value was set, false on database errors
   1768          */
   1769         public static boolean putInt(ContentResolver cr, String name, int value) {
   1770             return putIntForUser(cr, name, value, UserHandle.myUserId());
   1771         }
   1772 
   1773         /** @hide */
   1774         public static boolean putIntForUser(ContentResolver cr, String name, int value,
   1775                 int userHandle) {
   1776             return putStringForUser(cr, name, Integer.toString(value), userHandle);
   1777         }
   1778 
   1779         /**
   1780          * Convenience function for retrieving a single system settings value
   1781          * as a {@code long}.  Note that internally setting values are always
   1782          * stored as strings; this function converts the string to a {@code long}
   1783          * for you.  The default value will be returned if the setting is
   1784          * not defined or not a {@code long}.
   1785          *
   1786          * @param cr The ContentResolver to access.
   1787          * @param name The name of the setting to retrieve.
   1788          * @param def Value to return if the setting is not defined.
   1789          *
   1790          * @return The setting's current value, or 'def' if it is not defined
   1791          * or not a valid {@code long}.
   1792          */
   1793         public static long getLong(ContentResolver cr, String name, long def) {
   1794             return getLongForUser(cr, name, def, UserHandle.myUserId());
   1795         }
   1796 
   1797         /** @hide */
   1798         public static long getLongForUser(ContentResolver cr, String name, long def,
   1799                 int userHandle) {
   1800             String valString = getStringForUser(cr, name, userHandle);
   1801             long value;
   1802             try {
   1803                 value = valString != null ? Long.parseLong(valString) : def;
   1804             } catch (NumberFormatException e) {
   1805                 value = def;
   1806             }
   1807             return value;
   1808         }
   1809 
   1810         /**
   1811          * Convenience function for retrieving a single system settings value
   1812          * as a {@code long}.  Note that internally setting values are always
   1813          * stored as strings; this function converts the string to a {@code long}
   1814          * for you.
   1815          * <p>
   1816          * This version does not take a default value.  If the setting has not
   1817          * been set, or the string value is not a number,
   1818          * it throws {@link SettingNotFoundException}.
   1819          *
   1820          * @param cr The ContentResolver to access.
   1821          * @param name The name of the setting to retrieve.
   1822          *
   1823          * @return The setting's current value.
   1824          * @throws SettingNotFoundException Thrown if a setting by the given
   1825          * name can't be found or the setting value is not an integer.
   1826          */
   1827         public static long getLong(ContentResolver cr, String name)
   1828                 throws SettingNotFoundException {
   1829             return getLongForUser(cr, name, UserHandle.myUserId());
   1830         }
   1831 
   1832         /** @hide */
   1833         public static long getLongForUser(ContentResolver cr, String name, int userHandle)
   1834                 throws SettingNotFoundException {
   1835             String valString = getStringForUser(cr, name, userHandle);
   1836             try {
   1837                 return Long.parseLong(valString);
   1838             } catch (NumberFormatException e) {
   1839                 throw new SettingNotFoundException(name);
   1840             }
   1841         }
   1842 
   1843         /**
   1844          * Convenience function for updating a single settings value as a long
   1845          * integer. This will either create a new entry in the table if the
   1846          * given name does not exist, or modify the value of the existing row
   1847          * with that name.  Note that internally setting values are always
   1848          * stored as strings, so this function converts the given value to a
   1849          * string before storing it.
   1850          *
   1851          * @param cr The ContentResolver to access.
   1852          * @param name The name of the setting to modify.
   1853          * @param value The new value for the setting.
   1854          * @return true if the value was set, false on database errors
   1855          */
   1856         public static boolean putLong(ContentResolver cr, String name, long value) {
   1857             return putLongForUser(cr, name, value, UserHandle.myUserId());
   1858         }
   1859 
   1860         /** @hide */
   1861         public static boolean putLongForUser(ContentResolver cr, String name, long value,
   1862                 int userHandle) {
   1863             return putStringForUser(cr, name, Long.toString(value), userHandle);
   1864         }
   1865 
   1866         /**
   1867          * Convenience function for retrieving a single system settings value
   1868          * as a floating point number.  Note that internally setting values are
   1869          * always stored as strings; this function converts the string to an
   1870          * float for you. The default value will be returned if the setting
   1871          * is not defined or not a valid float.
   1872          *
   1873          * @param cr The ContentResolver to access.
   1874          * @param name The name of the setting to retrieve.
   1875          * @param def Value to return if the setting is not defined.
   1876          *
   1877          * @return The setting's current value, or 'def' if it is not defined
   1878          * or not a valid float.
   1879          */
   1880         public static float getFloat(ContentResolver cr, String name, float def) {
   1881             return getFloatForUser(cr, name, def, UserHandle.myUserId());
   1882         }
   1883 
   1884         /** @hide */
   1885         public static float getFloatForUser(ContentResolver cr, String name, float def,
   1886                 int userHandle) {
   1887             String v = getStringForUser(cr, name, userHandle);
   1888             try {
   1889                 return v != null ? Float.parseFloat(v) : def;
   1890             } catch (NumberFormatException e) {
   1891                 return def;
   1892             }
   1893         }
   1894 
   1895         /**
   1896          * Convenience function for retrieving a single system settings value
   1897          * as a float.  Note that internally setting values are always
   1898          * stored as strings; this function converts the string to a float
   1899          * for you.
   1900          * <p>
   1901          * This version does not take a default value.  If the setting has not
   1902          * been set, or the string value is not a number,
   1903          * it throws {@link SettingNotFoundException}.
   1904          *
   1905          * @param cr The ContentResolver to access.
   1906          * @param name The name of the setting to retrieve.
   1907          *
   1908          * @throws SettingNotFoundException Thrown if a setting by the given
   1909          * name can't be found or the setting value is not a float.
   1910          *
   1911          * @return The setting's current value.
   1912          */
   1913         public static float getFloat(ContentResolver cr, String name)
   1914                 throws SettingNotFoundException {
   1915             return getFloatForUser(cr, name, UserHandle.myUserId());
   1916         }
   1917 
   1918         /** @hide */
   1919         public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
   1920                 throws SettingNotFoundException {
   1921             String v = getStringForUser(cr, name, userHandle);
   1922             if (v == null) {
   1923                 throw new SettingNotFoundException(name);
   1924             }
   1925             try {
   1926                 return Float.parseFloat(v);
   1927             } catch (NumberFormatException e) {
   1928                 throw new SettingNotFoundException(name);
   1929             }
   1930         }
   1931 
   1932         /**
   1933          * Convenience function for updating a single settings value as a
   1934          * floating point number. This will either create a new entry in the
   1935          * table if the given name does not exist, or modify the value of the
   1936          * existing row with that name.  Note that internally setting values
   1937          * are always stored as strings, so this function converts the given
   1938          * value to a string before storing it.
   1939          *
   1940          * @param cr The ContentResolver to access.
   1941          * @param name The name of the setting to modify.
   1942          * @param value The new value for the setting.
   1943          * @return true if the value was set, false on database errors
   1944          */
   1945         public static boolean putFloat(ContentResolver cr, String name, float value) {
   1946             return putFloatForUser(cr, name, value, UserHandle.myUserId());
   1947         }
   1948 
   1949         /** @hide */
   1950         public static boolean putFloatForUser(ContentResolver cr, String name, float value,
   1951                 int userHandle) {
   1952             return putStringForUser(cr, name, Float.toString(value), userHandle);
   1953         }
   1954 
   1955         /**
   1956          * Convenience function to read all of the current
   1957          * configuration-related settings into a
   1958          * {@link Configuration} object.
   1959          *
   1960          * @param cr The ContentResolver to access.
   1961          * @param outConfig Where to place the configuration settings.
   1962          */
   1963         public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
   1964             getConfigurationForUser(cr, outConfig, UserHandle.myUserId());
   1965         }
   1966 
   1967         /** @hide */
   1968         public static void getConfigurationForUser(ContentResolver cr, Configuration outConfig,
   1969                 int userHandle) {
   1970             outConfig.fontScale = Settings.System.getFloatForUser(
   1971                 cr, FONT_SCALE, outConfig.fontScale, userHandle);
   1972             if (outConfig.fontScale < 0) {
   1973                 outConfig.fontScale = 1;
   1974             }
   1975         }
   1976 
   1977         /**
   1978          * @hide Erase the fields in the Configuration that should be applied
   1979          * by the settings.
   1980          */
   1981         public static void clearConfiguration(Configuration inoutConfig) {
   1982             inoutConfig.fontScale = 0;
   1983         }
   1984 
   1985         /**
   1986          * Convenience function to write a batch of configuration-related
   1987          * settings from a {@link Configuration} object.
   1988          *
   1989          * @param cr The ContentResolver to access.
   1990          * @param config The settings to write.
   1991          * @return true if the values were set, false on database errors
   1992          */
   1993         public static boolean putConfiguration(ContentResolver cr, Configuration config) {
   1994             return putConfigurationForUser(cr, config, UserHandle.myUserId());
   1995         }
   1996 
   1997         /** @hide */
   1998         public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
   1999                 int userHandle) {
   2000             return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle);
   2001         }
   2002 
   2003         /** @hide */
   2004         public static boolean hasInterestingConfigurationChanges(int changes) {
   2005             return (changes&ActivityInfo.CONFIG_FONT_SCALE) != 0;
   2006         }
   2007 
   2008         /** @deprecated - Do not use */
   2009         @Deprecated
   2010         public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
   2011             return getShowGTalkServiceStatusForUser(cr, UserHandle.myUserId());
   2012         }
   2013 
   2014         /**
   2015          * @hide
   2016          * @deprecated - Do not use
   2017          */
   2018         public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
   2019                 int userHandle) {
   2020             return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
   2021         }
   2022 
   2023         /** @deprecated - Do not use */
   2024         @Deprecated
   2025         public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
   2026             setShowGTalkServiceStatusForUser(cr, flag, UserHandle.myUserId());
   2027         }
   2028 
   2029         /**
   2030          * @hide
   2031          * @deprecated - Do not use
   2032          */
   2033         @Deprecated
   2034         public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
   2035                 int userHandle) {
   2036             putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
   2037         }
   2038 
   2039         private static final class DiscreteValueValidator implements Validator {
   2040             private final String[] mValues;
   2041 
   2042             public DiscreteValueValidator(String[] values) {
   2043                 mValues = values;
   2044             }
   2045 
   2046             @Override
   2047             public boolean validate(String value) {
   2048                 return ArrayUtils.contains(mValues, value);
   2049             }
   2050         }
   2051 
   2052         private static final class InclusiveIntegerRangeValidator implements Validator {
   2053             private final int mMin;
   2054             private final int mMax;
   2055 
   2056             public InclusiveIntegerRangeValidator(int min, int max) {
   2057                 mMin = min;
   2058                 mMax = max;
   2059             }
   2060 
   2061             @Override
   2062             public boolean validate(String value) {
   2063                 try {
   2064                     final int intValue = Integer.parseInt(value);
   2065                     return intValue >= mMin && intValue <= mMax;
   2066                 } catch (NumberFormatException e) {
   2067                     return false;
   2068                 }
   2069             }
   2070         }
   2071 
   2072         private static final class InclusiveFloatRangeValidator implements Validator {
   2073             private final float mMin;
   2074             private final float mMax;
   2075 
   2076             public InclusiveFloatRangeValidator(float min, float max) {
   2077                 mMin = min;
   2078                 mMax = max;
   2079             }
   2080 
   2081             @Override
   2082             public boolean validate(String value) {
   2083                 try {
   2084                     final float floatValue = Float.parseFloat(value);
   2085                     return floatValue >= mMin && floatValue <= mMax;
   2086                 } catch (NumberFormatException e) {
   2087                     return false;
   2088                 }
   2089             }
   2090         }
   2091 
   2092         /**
   2093          * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
   2094          */
   2095         @Deprecated
   2096         public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;
   2097 
   2098         /**
   2099          * What happens when the user presses the end call button if they're not
   2100          * on a call.<br/>
   2101          * <b>Values:</b><br/>
   2102          * 0 - The end button does nothing.<br/>
   2103          * 1 - The end button goes to the home screen.<br/>
   2104          * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
   2105          * 3 - The end button goes to the home screen.  If the user is already on the
   2106          * home screen, it puts the device to sleep.
   2107          */
   2108         public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";
   2109 
   2110         private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
   2111                 new InclusiveIntegerRangeValidator(0, 3);
   2112 
   2113         /**
   2114          * END_BUTTON_BEHAVIOR value for "go home".
   2115          * @hide
   2116          */
   2117         public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;
   2118 
   2119         /**
   2120          * END_BUTTON_BEHAVIOR value for "go to sleep".
   2121          * @hide
   2122          */
   2123         public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;
   2124 
   2125         /**
   2126          * END_BUTTON_BEHAVIOR default value.
   2127          * @hide
   2128          */
   2129         public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;
   2130 
   2131         /**
   2132          * Is advanced settings mode turned on. 0 == no, 1 == yes
   2133          * @hide
   2134          */
   2135         public static final String ADVANCED_SETTINGS = "advanced_settings";
   2136 
   2137         private static final Validator ADVANCED_SETTINGS_VALIDATOR = sBooleanValidator;
   2138 
   2139         /**
   2140          * ADVANCED_SETTINGS default value.
   2141          * @hide
   2142          */
   2143         public static final int ADVANCED_SETTINGS_DEFAULT = 0;
   2144 
   2145         /**
   2146          * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
   2147          */
   2148         @Deprecated
   2149         public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;
   2150 
   2151         /**
   2152          * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
   2153          */
   2154         @Deprecated
   2155         public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;
   2156 
   2157         /**
   2158          * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
   2159          */
   2160         @Deprecated
   2161         public static final String RADIO_WIFI = Global.RADIO_WIFI;
   2162 
   2163         /**
   2164          * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
   2165          * {@hide}
   2166          */
   2167         @Deprecated
   2168         public static final String RADIO_WIMAX = Global.RADIO_WIMAX;
   2169 
   2170         /**
   2171          * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
   2172          */
   2173         @Deprecated
   2174         public static final String RADIO_CELL = Global.RADIO_CELL;
   2175 
   2176         /**
   2177          * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
   2178          */
   2179         @Deprecated
   2180         public static final String RADIO_NFC = Global.RADIO_NFC;
   2181 
   2182         /**
   2183          * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
   2184          */
   2185         @Deprecated
   2186         public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;
   2187 
   2188         /**
   2189          * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
   2190          *
   2191          * {@hide}
   2192          */
   2193         @Deprecated
   2194         public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
   2195                 Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;
   2196 
   2197         /**
   2198          * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
   2199          */
   2200         @Deprecated
   2201         public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;
   2202 
   2203         /**
   2204          * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
   2205          */
   2206         @Deprecated
   2207         public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;
   2208 
   2209         /**
   2210          * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
   2211          */
   2212         @Deprecated
   2213         public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
   2214                 Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;
   2215 
   2216         /**
   2217          * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
   2218          */
   2219         @Deprecated
   2220         public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;
   2221 
   2222         /**
   2223          * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
   2224          */
   2225         @Deprecated
   2226         public static final String MODE_RINGER = Global.MODE_RINGER;
   2227 
   2228         /**
   2229          * Whether to use static IP and other static network attributes.
   2230          * <p>
   2231          * Set to 1 for true and 0 for false.
   2232          *
   2233          * @deprecated Use {@link WifiManager} instead
   2234          */
   2235         @Deprecated
   2236         public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";
   2237 
   2238         private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = sBooleanValidator;
   2239 
   2240         /**
   2241          * The static IP address.
   2242          * <p>
   2243          * Example: "192.168.1.51"
   2244          *
   2245          * @deprecated Use {@link WifiManager} instead
   2246          */
   2247         @Deprecated
   2248         public static final String WIFI_STATIC_IP = "wifi_static_ip";
   2249 
   2250         private static final Validator WIFI_STATIC_IP_VALIDATOR = sLenientIpAddressValidator;
   2251 
   2252         /**
   2253          * If using static IP, the gateway's IP address.
   2254          * <p>
   2255          * Example: "192.168.1.1"
   2256          *
   2257          * @deprecated Use {@link WifiManager} instead
   2258          */
   2259         @Deprecated
   2260         public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";
   2261 
   2262         private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = sLenientIpAddressValidator;
   2263 
   2264         /**
   2265          * If using static IP, the net mask.
   2266          * <p>
   2267          * Example: "255.255.255.0"
   2268          *
   2269          * @deprecated Use {@link WifiManager} instead
   2270          */
   2271         @Deprecated
   2272         public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";
   2273 
   2274         private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = sLenientIpAddressValidator;
   2275 
   2276         /**
   2277          * If using static IP, the primary DNS's IP address.
   2278          * <p>
   2279          * Example: "192.168.1.1"
   2280          *
   2281          * @deprecated Use {@link WifiManager} instead
   2282          */
   2283         @Deprecated
   2284         public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";
   2285 
   2286         private static final Validator WIFI_STATIC_DNS1_VALIDATOR = sLenientIpAddressValidator;
   2287 
   2288         /**
   2289          * If using static IP, the secondary DNS's IP address.
   2290          * <p>
   2291          * Example: "192.168.1.2"
   2292          *
   2293          * @deprecated Use {@link WifiManager} instead
   2294          */
   2295         @Deprecated
   2296         public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";
   2297 
   2298         private static final Validator WIFI_STATIC_DNS2_VALIDATOR = sLenientIpAddressValidator;
   2299 
   2300         /**
   2301          * Determines whether remote devices may discover and/or connect to
   2302          * this device.
   2303          * <P>Type: INT</P>
   2304          * 2 -- discoverable and connectable
   2305          * 1 -- connectable but not discoverable
   2306          * 0 -- neither connectable nor discoverable
   2307          */
   2308         public static final String BLUETOOTH_DISCOVERABILITY =
   2309             "bluetooth_discoverability";
   2310 
   2311         private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
   2312                 new InclusiveIntegerRangeValidator(0, 2);
   2313 
   2314         /**
   2315          * Bluetooth discoverability timeout.  If this value is nonzero, then
   2316          * Bluetooth becomes discoverable for a certain number of seconds,
   2317          * after which is becomes simply connectable.  The value is in seconds.
   2318          */
   2319         public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
   2320             "bluetooth_discoverability_timeout";
   2321 
   2322         private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
   2323                 sNonNegativeIntegerValidator;
   2324 
   2325         /**
   2326          * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
   2327          * instead
   2328          */
   2329         @Deprecated
   2330         public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;
   2331 
   2332         /**
   2333          * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
   2334          * instead
   2335          */
   2336         @Deprecated
   2337         public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
   2338 
   2339         /**
   2340          * @deprecated Use
   2341          * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
   2342          * instead
   2343          */
   2344         @Deprecated
   2345         public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
   2346             "lock_pattern_tactile_feedback_enabled";
   2347 
   2348         /**
   2349          * A formatted string of the next alarm that is set, or the empty string
   2350          * if there is no alarm set.
   2351          *
   2352          * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
   2353          */
   2354         @Deprecated
   2355         public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";
   2356 
   2357         private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
   2358             private static final int MAX_LENGTH = 1000;
   2359 
   2360             @Override
   2361             public boolean validate(String value) {
   2362                 // TODO: No idea what the correct format is.
   2363                 return value == null || value.length() < MAX_LENGTH;
   2364             }
   2365         };
   2366 
   2367         /**
   2368          * Scaling factor for fonts, float.
   2369          */
   2370         public static final String FONT_SCALE = "font_scale";
   2371 
   2372         private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
   2373             @Override
   2374             public boolean validate(String value) {
   2375                 try {
   2376                     return Float.parseFloat(value) >= 0;
   2377                 } catch (NumberFormatException e) {
   2378                     return false;
   2379                 }
   2380             }
   2381         };
   2382 
   2383         /**
   2384          * Name of an application package to be debugged.
   2385          *
   2386          * @deprecated Use {@link Global#DEBUG_APP} instead
   2387          */
   2388         @Deprecated
   2389         public static final String DEBUG_APP = Global.DEBUG_APP;
   2390 
   2391         /**
   2392          * If 1, when launching DEBUG_APP it will wait for the debugger before
   2393          * starting user code.  If 0, it will run normally.
   2394          *
   2395          * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
   2396          */
   2397         @Deprecated
   2398         public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;
   2399 
   2400         /**
   2401          * Whether or not to dim the screen. 0=no  1=yes
   2402          * @deprecated This setting is no longer used.
   2403          */
   2404         @Deprecated
   2405         public static final String DIM_SCREEN = "dim_screen";
   2406 
   2407         private static final Validator DIM_SCREEN_VALIDATOR = sBooleanValidator;
   2408 
   2409         /**
   2410          * The amount of time in milliseconds before the device goes to sleep or begins
   2411          * to dream after a period of inactivity.  This value is also known as the
   2412          * user activity timeout period since the screen isn't necessarily turned off
   2413          * when it expires.
   2414          */
   2415         public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";
   2416 
   2417         private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR = sNonNegativeIntegerValidator;
   2418 
   2419         /**
   2420          * The screen backlight brightness between 0 and 255.
   2421          */
   2422         public static final String SCREEN_BRIGHTNESS = "screen_brightness";
   2423 
   2424         private static final Validator SCREEN_BRIGHTNESS_VALIDATOR =
   2425                 new InclusiveIntegerRangeValidator(0, 255);
   2426 
   2427         /**
   2428          * Control whether to enable automatic brightness mode.
   2429          */
   2430         public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";
   2431 
   2432         private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = sBooleanValidator;
   2433 
   2434         /**
   2435          * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
   2436          * or less (<0.0 >-1.0) bright.
   2437          * @hide
   2438          */
   2439         public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";
   2440 
   2441         private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
   2442                 new InclusiveFloatRangeValidator(-1, 1);
   2443 
   2444         /**
   2445          * SCREEN_BRIGHTNESS_MODE value for manual mode.
   2446          */
   2447         public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;
   2448 
   2449         /**
   2450          * SCREEN_BRIGHTNESS_MODE value for automatic mode.
   2451          */
   2452         public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;
   2453 
   2454         /**
   2455          * Control whether the process CPU usage meter should be shown.
   2456          *
   2457          * @deprecated Use {@link Global#SHOW_PROCESSES} instead
   2458          */
   2459         @Deprecated
   2460         public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;
   2461 
   2462         /**
   2463          * If 1, the activity manager will aggressively finish activities and
   2464          * processes as soon as they are no longer needed.  If 0, the normal
   2465          * extended lifetime is used.
   2466          *
   2467          * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
   2468          */
   2469         @Deprecated
   2470         public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;
   2471 
   2472         /**
   2473          * Determines which streams are affected by ringer mode changes. The
   2474          * stream type's bit should be set to 1 if it should be muted when going
   2475          * into an inaudible ringer mode.
   2476          */
   2477         public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";
   2478 
   2479         private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
   2480                 sNonNegativeIntegerValidator;
   2481 
   2482         /**
   2483           * Determines which streams are affected by mute. The
   2484           * stream type's bit should be set to 1 if it should be muted when a mute request
   2485           * is received.
   2486           */
   2487         public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";
   2488 
   2489         private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
   2490                 sNonNegativeIntegerValidator;
   2491 
   2492         /**
   2493          * Whether vibrate is on for different events. This is used internally,
   2494          * changing this value will not change the vibrate. See AudioManager.
   2495          */
   2496         public static final String VIBRATE_ON = "vibrate_on";
   2497 
   2498         private static final Validator VIBRATE_ON_VALIDATOR = sBooleanValidator;
   2499 
   2500         /**
   2501          * If 1, redirects the system vibrator to all currently attached input devices
   2502          * that support vibration.  If there are no such input devices, then the system
   2503          * vibrator is used instead.
   2504          * If 0, does not register the system vibrator.
   2505          *
   2506          * This setting is mainly intended to provide a compatibility mechanism for
   2507          * applications that only know about the system vibrator and do not use the
   2508          * input device vibrator API.
   2509          *
   2510          * @hide
   2511          */
   2512         public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";
   2513 
   2514         private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = sBooleanValidator;
   2515 
   2516         /**
   2517          * Ringer volume. This is used internally, changing this value will not
   2518          * change the volume. See AudioManager.
   2519          *
   2520          * @removed Not used by anything since API 2.
   2521          */
   2522         public static final String VOLUME_RING = "volume_ring";
   2523 
   2524         /**
   2525          * System/notifications volume. This is used internally, changing this
   2526          * value will not change the volume. See AudioManager.
   2527          *
   2528          * @removed Not used by anything since API 2.
   2529          */
   2530         public static final String VOLUME_SYSTEM = "volume_system";
   2531 
   2532         /**
   2533          * Voice call volume. This is used internally, changing this value will
   2534          * not change the volume. See AudioManager.
   2535          *
   2536          * @removed Not used by anything since API 2.
   2537          */
   2538         public static final String VOLUME_VOICE = "volume_voice";
   2539 
   2540         /**
   2541          * Music/media/gaming volume. This is used internally, changing this
   2542          * value will not change the volume. See AudioManager.
   2543          *
   2544          * @removed Not used by anything since API 2.
   2545          */
   2546         public static final String VOLUME_MUSIC = "volume_music";
   2547 
   2548         /**
   2549          * Alarm volume. This is used internally, changing this
   2550          * value will not change the volume. See AudioManager.
   2551          *
   2552          * @removed Not used by anything since API 2.
   2553          */
   2554         public static final String VOLUME_ALARM = "volume_alarm";
   2555 
   2556         /**
   2557          * Notification volume. This is used internally, changing this
   2558          * value will not change the volume. See AudioManager.
   2559          *
   2560          * @removed Not used by anything since API 2.
   2561          */
   2562         public static final String VOLUME_NOTIFICATION = "volume_notification";
   2563 
   2564         /**
   2565          * Bluetooth Headset volume. This is used internally, changing this value will
   2566          * not change the volume. See AudioManager.
   2567          *
   2568          * @removed Not used by anything since API 2.
   2569          */
   2570         public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";
   2571 
   2572         /**
   2573          * Master volume (float in the range 0.0f to 1.0f).
   2574          *
   2575          * @hide
   2576          */
   2577         public static final String VOLUME_MASTER = "volume_master";
   2578 
   2579         /**
   2580          * Master volume mute (int 1 = mute, 0 = not muted).
   2581          *
   2582          * @hide
   2583          */
   2584         public static final String VOLUME_MASTER_MUTE = "volume_master_mute";
   2585 
   2586         private static final Validator VOLUME_MASTER_MUTE_VALIDATOR = sBooleanValidator;
   2587 
   2588         /**
   2589          * Microphone mute (int 1 = mute, 0 = not muted).
   2590          *
   2591          * @hide
   2592          */
   2593         public static final String MICROPHONE_MUTE = "microphone_mute";
   2594 
   2595         private static final Validator MICROPHONE_MUTE_VALIDATOR = sBooleanValidator;
   2596 
   2597         /**
   2598          * Whether the notifications should use the ring volume (value of 1) or
   2599          * a separate notification volume (value of 0). In most cases, users
   2600          * will have this enabled so the notification and ringer volumes will be
   2601          * the same. However, power users can disable this and use the separate
   2602          * notification volume control.
   2603          * <p>
   2604          * Note: This is a one-off setting that will be removed in the future
   2605          * when there is profile support. For this reason, it is kept hidden
   2606          * from the public APIs.
   2607          *
   2608          * @hide
   2609          * @deprecated
   2610          */
   2611         @Deprecated
   2612         public static final String NOTIFICATIONS_USE_RING_VOLUME =
   2613             "notifications_use_ring_volume";
   2614 
   2615         private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = sBooleanValidator;
   2616 
   2617         /**
   2618          * Whether silent mode should allow vibration feedback. This is used
   2619          * internally in AudioService and the Sound settings activity to
   2620          * coordinate decoupling of vibrate and silent modes. This setting
   2621          * will likely be removed in a future release with support for
   2622          * audio/vibe feedback profiles.
   2623          *
   2624          * Not used anymore. On devices with vibrator, the user explicitly selects
   2625          * silent or vibrate mode.
   2626          * Kept for use by legacy database upgrade code in DatabaseHelper.
   2627          * @hide
   2628          */
   2629         public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";
   2630 
   2631         private static final Validator VIBRATE_IN_SILENT_VALIDATOR = sBooleanValidator;
   2632 
   2633         /**
   2634          * The mapping of stream type (integer) to its setting.
   2635          *
   2636          * @removed  Not used by anything since API 2.
   2637          */
   2638         public static final String[] VOLUME_SETTINGS = {
   2639             VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
   2640             VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
   2641         };
   2642 
   2643         /**
   2644          * Appended to various volume related settings to record the previous
   2645          * values before they the settings were affected by a silent/vibrate
   2646          * ringer mode change.
   2647          *
   2648          * @removed  Not used by anything since API 2.
   2649          */
   2650         public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";
   2651 
   2652         /**
   2653          * Persistent store for the system-wide default ringtone URI.
   2654          * <p>
   2655          * If you need to play the default ringtone at any given time, it is recommended
   2656          * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
   2657          * to the set default ringtone at the time of playing.
   2658          *
   2659          * @see #DEFAULT_RINGTONE_URI
   2660          */
   2661         public static final String RINGTONE = "ringtone";
   2662 
   2663         private static final Validator RINGTONE_VALIDATOR = sUriValidator;
   2664 
   2665         /**
   2666          * A {@link Uri} that will point to the current default ringtone at any
   2667          * given time.
   2668          * <p>
   2669          * If the current default ringtone is in the DRM provider and the caller
   2670          * does not have permission, the exception will be a
   2671          * FileNotFoundException.
   2672          */
   2673         public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);
   2674 
   2675         /**
   2676          * Persistent store for the system-wide default notification sound.
   2677          *
   2678          * @see #RINGTONE
   2679          * @see #DEFAULT_NOTIFICATION_URI
   2680          */
   2681         public static final String NOTIFICATION_SOUND = "notification_sound";
   2682 
   2683         private static final Validator NOTIFICATION_SOUND_VALIDATOR = sUriValidator;
   2684 
   2685         /**
   2686          * A {@link Uri} that will point to the current default notification
   2687          * sound at any given time.
   2688          *
   2689          * @see #DEFAULT_RINGTONE_URI
   2690          */
   2691         public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);
   2692 
   2693         /**
   2694          * Persistent store for the system-wide default alarm alert.
   2695          *
   2696          * @see #RINGTONE
   2697          * @see #DEFAULT_ALARM_ALERT_URI
   2698          */
   2699         public static final String ALARM_ALERT = "alarm_alert";
   2700 
   2701         private static final Validator ALARM_ALERT_VALIDATOR = sUriValidator;
   2702 
   2703         /**
   2704          * A {@link Uri} that will point to the current default alarm alert at
   2705          * any given time.
   2706          *
   2707          * @see #DEFAULT_ALARM_ALERT_URI
   2708          */
   2709         public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);
   2710 
   2711         /**
   2712          * Persistent store for the system default media button event receiver.
   2713          *
   2714          * @hide
   2715          */
   2716         public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";
   2717 
   2718         private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = new Validator() {
   2719             @Override
   2720             public boolean validate(String value) {
   2721                 try {
   2722                     ComponentName.unflattenFromString(value);
   2723                     return true;
   2724                 } catch (NullPointerException e) {
   2725                     return false;
   2726                 }
   2727             }
   2728         };
   2729 
   2730         /**
   2731          * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
   2732          */
   2733         public static final String TEXT_AUTO_REPLACE = "auto_replace";
   2734 
   2735         private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = sBooleanValidator;
   2736 
   2737         /**
   2738          * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
   2739          */
   2740         public static final String TEXT_AUTO_CAPS = "auto_caps";
   2741 
   2742         private static final Validator TEXT_AUTO_CAPS_VALIDATOR = sBooleanValidator;
   2743 
   2744         /**
   2745          * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
   2746          * feature converts two spaces to a "." and space.
   2747          */
   2748         public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";
   2749 
   2750         private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = sBooleanValidator;
   2751 
   2752         /**
   2753          * Setting to showing password characters in text editors. 1 = On, 0 = Off
   2754          */
   2755         public static final String TEXT_SHOW_PASSWORD = "show_password";
   2756 
   2757         private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = sBooleanValidator;
   2758 
   2759         public static final String SHOW_GTALK_SERVICE_STATUS =
   2760                 "SHOW_GTALK_SERVICE_STATUS";
   2761 
   2762         private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = sBooleanValidator;
   2763 
   2764         /**
   2765          * Name of activity to use for wallpaper on the home screen.
   2766          *
   2767          * @deprecated Use {@link WallpaperManager} instead.
   2768          */
   2769         @Deprecated
   2770         public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";
   2771 
   2772         private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
   2773             private static final int MAX_LENGTH = 1000;
   2774 
   2775             @Override
   2776             public boolean validate(String value) {
   2777                 if (value != null && value.length() > MAX_LENGTH) {
   2778                     return false;
   2779                 }
   2780                 return ComponentName.unflattenFromString(value) != null;
   2781             }
   2782         };
   2783 
   2784         /**
   2785          * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
   2786          * instead
   2787          */
   2788         @Deprecated
   2789         public static final String AUTO_TIME = Global.AUTO_TIME;
   2790 
   2791         /**
   2792          * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
   2793          * instead
   2794          */
   2795         @Deprecated
   2796         public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;
   2797 
   2798         /**
   2799          * Display times as 12 or 24 hours
   2800          *   12
   2801          *   24
   2802          */
   2803         public static final String TIME_12_24 = "time_12_24";
   2804 
   2805         /** @hide */
   2806         public static final Validator TIME_12_24_VALIDATOR =
   2807                 new DiscreteValueValidator(new String[] {"12", "24"});
   2808 
   2809         /**
   2810          * Date format string
   2811          *   mm/dd/yyyy
   2812          *   dd/mm/yyyy
   2813          *   yyyy/mm/dd
   2814          */
   2815         public static final String DATE_FORMAT = "date_format";
   2816 
   2817         /** @hide */
   2818         public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
   2819             @Override
   2820             public boolean validate(String value) {
   2821                 try {
   2822                     new SimpleDateFormat(value);
   2823                     return true;
   2824                 } catch (IllegalArgumentException e) {
   2825                     return false;
   2826                 }
   2827             }
   2828         };
   2829 
   2830         /**
   2831          * Whether the setup wizard has been run before (on first boot), or if
   2832          * it still needs to be run.
   2833          *
   2834          * nonzero = it has been run in the past
   2835          * 0 = it has not been run in the past
   2836          */
   2837         public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";
   2838 
   2839         /** @hide */
   2840         public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = sBooleanValidator;
   2841 
   2842         /**
   2843          * Scaling factor for normal window animations. Setting to 0 will disable window
   2844          * animations.
   2845          *
   2846          * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
   2847          */
   2848         @Deprecated
   2849         public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;
   2850 
   2851         /**
   2852          * Scaling factor for activity transition animations. Setting to 0 will disable window
   2853          * animations.
   2854          *
   2855          * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
   2856          */
   2857         @Deprecated
   2858         public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;
   2859 
   2860         /**
   2861          * Scaling factor for Animator-based animations. This affects both the start delay and
   2862          * duration of all such animations. Setting to 0 will cause animations to end immediately.
   2863          * The default value is 1.
   2864          *
   2865          * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
   2866          */
   2867         @Deprecated
   2868         public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;
   2869 
   2870         /**
   2871          * Control whether the accelerometer will be used to change screen
   2872          * orientation.  If 0, it will not be used unless explicitly requested
   2873          * by the application; if 1, it will be used by default unless explicitly
   2874          * disabled by the application.
   2875          */
   2876         public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";
   2877 
   2878         /** @hide */
   2879         public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = sBooleanValidator;
   2880 
   2881         /**
   2882          * Default screen rotation when no other policy applies.
   2883          * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
   2884          * preference, this rotation value will be used. Must be one of the
   2885          * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
   2886          *
   2887          * @see android.view.Display#getRotation
   2888          */
   2889         public static final String USER_ROTATION = "user_rotation";
   2890 
   2891         /** @hide */
   2892         public static final Validator USER_ROTATION_VALIDATOR =
   2893                 new InclusiveIntegerRangeValidator(0, 3);
   2894 
   2895         /**
   2896          * Control whether the rotation lock toggle in the System UI should be hidden.
   2897          * Typically this is done for accessibility purposes to make it harder for
   2898          * the user to accidentally toggle the rotation lock while the display rotation
   2899          * has been locked for accessibility.
   2900          *
   2901          * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
   2902          * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
   2903          *
   2904          * @hide
   2905          */
   2906         public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
   2907                 "hide_rotation_lock_toggle_for_accessibility";
   2908 
   2909         /** @hide */
   2910         public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
   2911                 sBooleanValidator;
   2912 
   2913         /**
   2914          * Whether the phone vibrates when it is ringing due to an incoming call. This will
   2915          * be used by Phone and Setting apps; it shouldn't affect other apps.
   2916          * The value is boolean (1 or 0).
   2917          *
   2918          * Note: this is not same as "vibrate on ring", which had been available until ICS.
   2919          * It was about AudioManager's setting and thus affected all the applications which
   2920          * relied on the setting, while this is purely about the vibration setting for incoming
   2921          * calls.
   2922          */
   2923         public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";
   2924 
   2925         /** @hide */
   2926         public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = sBooleanValidator;
   2927 
   2928         /**
   2929          * Whether the audible DTMF tones are played by the dialer when dialing. The value is
   2930          * boolean (1 or 0).
   2931          */
   2932         public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";
   2933 
   2934         /** @hide */
   2935         public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
   2936 
   2937         /**
   2938          * CDMA only settings
   2939          * DTMF tone type played by the dialer when dialing.
   2940          *                 0 = Normal
   2941          *                 1 = Long
   2942          */
   2943         public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";
   2944 
   2945         /** @hide */
   2946         public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = sBooleanValidator;
   2947 
   2948         /**
   2949          * Whether the hearing aid is enabled. The value is
   2950          * boolean (1 or 0).
   2951          * @hide
   2952          */
   2953         public static final String HEARING_AID = "hearing_aid";
   2954 
   2955         /** @hide */
   2956         public static final Validator HEARING_AID_VALIDATOR = sBooleanValidator;
   2957 
   2958         /**
   2959          * CDMA only settings
   2960          * TTY Mode
   2961          * 0 = OFF
   2962          * 1 = FULL
   2963          * 2 = VCO
   2964          * 3 = HCO
   2965          * @hide
   2966          */
   2967         public static final String TTY_MODE = "tty_mode";
   2968 
   2969         /** @hide */
   2970         public static final Validator TTY_MODE_VALIDATOR = new InclusiveIntegerRangeValidator(0, 3);
   2971 
   2972         /**
   2973          * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
   2974          * boolean (1 or 0).
   2975          */
   2976         public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";
   2977 
   2978         /** @hide */
   2979         public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = sBooleanValidator;
   2980 
   2981         /**
   2982          * Whether the haptic feedback (long presses, ...) are enabled. The value is
   2983          * boolean (1 or 0).
   2984          */
   2985         public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";
   2986 
   2987         /** @hide */
   2988         public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = sBooleanValidator;
   2989 
   2990         /**
   2991          * @deprecated Each application that shows web suggestions should have its own
   2992          * setting for this.
   2993          */
   2994         @Deprecated
   2995         public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";
   2996 
   2997         /** @hide */
   2998         public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = sBooleanValidator;
   2999 
   3000         /**
   3001          * Whether the notification LED should repeatedly flash when a notification is
   3002          * pending. The value is boolean (1 or 0).
   3003          * @hide
   3004          */
   3005         public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";
   3006 
   3007         /** @hide */
   3008         public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = sBooleanValidator;
   3009 
   3010         /**
   3011          * Show pointer location on screen?
   3012          * 0 = no
   3013          * 1 = yes
   3014          * @hide
   3015          */
   3016         public static final String POINTER_LOCATION = "pointer_location";
   3017 
   3018         /** @hide */
   3019         public static final Validator POINTER_LOCATION_VALIDATOR = sBooleanValidator;
   3020 
   3021         /**
   3022          * Show touch positions on screen?
   3023          * 0 = no
   3024          * 1 = yes
   3025          * @hide
   3026          */
   3027         public static final String SHOW_TOUCHES = "show_touches";
   3028 
   3029         /** @hide */
   3030         public static final Validator SHOW_TOUCHES_VALIDATOR = sBooleanValidator;
   3031 
   3032         /**
   3033          * Log raw orientation data from
   3034          * {@link com.android.server.policy.WindowOrientationListener} for use with the
   3035          * orientationplot.py tool.
   3036          * 0 = no
   3037          * 1 = yes
   3038          * @hide
   3039          */
   3040         public static final String WINDOW_ORIENTATION_LISTENER_LOG =
   3041                 "window_orientation_listener_log";
   3042 
   3043         /** @hide */
   3044         public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = sBooleanValidator;
   3045 
   3046         /**
   3047          * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
   3048          * instead
   3049          * @hide
   3050          */
   3051         @Deprecated
   3052         public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;
   3053 
   3054         /**
   3055          * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
   3056          * instead
   3057          * @hide
   3058          */
   3059         @Deprecated
   3060         public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;
   3061 
   3062         /**
   3063          * Whether to play sounds when the keyguard is shown and dismissed.
   3064          * @hide
   3065          */
   3066         public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";
   3067 
   3068         /** @hide */
   3069         public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = sBooleanValidator;
   3070 
   3071         /**
   3072          * Whether the lockscreen should be completely disabled.
   3073          * @hide
   3074          */
   3075         public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";
   3076 
   3077         /** @hide */
   3078         public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = sBooleanValidator;
   3079 
   3080         /**
   3081          * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
   3082          * instead
   3083          * @hide
   3084          */
   3085         @Deprecated
   3086         public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;
   3087 
   3088         /**
   3089          * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
   3090          * instead
   3091          * @hide
   3092          */
   3093         @Deprecated
   3094         public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;
   3095 
   3096         /**
   3097          * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
   3098          * instead
   3099          * @hide
   3100          */
   3101         @Deprecated
   3102         public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;
   3103 
   3104         /**
   3105          * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
   3106          * instead
   3107          * @hide
   3108          */
   3109         @Deprecated
   3110         public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;
   3111 
   3112         /**
   3113          * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
   3114          * instead
   3115          * @hide
   3116          */
   3117         @Deprecated
   3118         public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;
   3119 
   3120         /**
   3121          * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
   3122          * instead
   3123          * @hide
   3124          */
   3125         @Deprecated
   3126         public static final String LOCK_SOUND = Global.LOCK_SOUND;
   3127 
   3128         /**
   3129          * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
   3130          * instead
   3131          * @hide
   3132          */
   3133         @Deprecated
   3134         public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;
   3135 
   3136         /**
   3137          * Receive incoming SIP calls?
   3138          * 0 = no
   3139          * 1 = yes
   3140          * @hide
   3141          */
   3142         public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";
   3143 
   3144         /** @hide */
   3145         public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = sBooleanValidator;
   3146 
   3147         /**
   3148          * Call Preference String.
   3149          * "SIP_ALWAYS" : Always use SIP with network access
   3150          * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
   3151          * @hide
   3152          */
   3153         public static final String SIP_CALL_OPTIONS = "sip_call_options";
   3154 
   3155         /** @hide */
   3156         public static final Validator SIP_CALL_OPTIONS_VALIDATOR = new DiscreteValueValidator(
   3157                 new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});
   3158 
   3159         /**
   3160          * One of the sip call options: Always use SIP with network access.
   3161          * @hide
   3162          */
   3163         public static final String SIP_ALWAYS = "SIP_ALWAYS";
   3164 
   3165         /** @hide */
   3166         public static final Validator SIP_ALWAYS_VALIDATOR = sBooleanValidator;
   3167 
   3168         /**
   3169          * One of the sip call options: Only if destination is a SIP address.
   3170          * @hide
   3171          */
   3172         public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";
   3173 
   3174         /** @hide */
   3175         public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = sBooleanValidator;
   3176 
   3177         /**
   3178          * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
   3179          * the user should be prompted each time a call is made whether it should be placed using
   3180          * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
   3181          * SIP_ADDRESS_ONLY.
   3182          * @hide
   3183          */
   3184         @Deprecated
   3185         public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";
   3186 
   3187         /** @hide */
   3188         public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = sBooleanValidator;
   3189 
   3190         /**
   3191          * Pointer speed setting.
   3192          * This is an integer value in a range between -7 and +7, so there are 15 possible values.
   3193          *   -7 = slowest
   3194          *    0 = default speed
   3195          *   +7 = fastest
   3196          * @hide
   3197          */
   3198         public static final String POINTER_SPEED = "pointer_speed";
   3199 
   3200         /** @hide */
   3201         public static final Validator POINTER_SPEED_VALIDATOR =
   3202                 new InclusiveFloatRangeValidator(-7, 7);
   3203 
   3204         /**
   3205          * Whether lock-to-app will be triggered by long-press on recents.
   3206          * @hide
   3207          */
   3208         public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";
   3209 
   3210         /** @hide */
   3211         public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = sBooleanValidator;
   3212 
   3213         /**
   3214          * I am the lolrus.
   3215          * <p>
   3216          * Nonzero values indicate that the user has a bukkit.
   3217          * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
   3218          * @hide
   3219          */
   3220         public static final String EGG_MODE = "egg_mode";
   3221 
   3222         /** @hide */
   3223         public static final Validator EGG_MODE_VALIDATOR = new Validator() {
   3224             @Override
   3225             public boolean validate(String value) {
   3226                 try {
   3227                     return Long.parseLong(value) >= 0;
   3228                 } catch (NumberFormatException e) {
   3229                     return false;
   3230                 }
   3231             }
   3232         };
   3233 
   3234         /**
   3235          * IMPORTANT: If you add a new public settings you also have to add it to
   3236          * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
   3237          * it to PRIVATE_SETTINGS below. Also add a validator that can validate
   3238          * the setting value. See an example above.
   3239          */
   3240 
   3241         /**
   3242          * Settings to backup. This is here so that it's in the same place as the settings
   3243          * keys and easy to update.
   3244          *
   3245          * NOTE: Settings are backed up and restored in the order they appear
   3246          *       in this array. If you have one setting depending on another,
   3247          *       make sure that they are ordered appropriately.
   3248          *
   3249          * @hide
   3250          */
   3251         public static final String[] SETTINGS_TO_BACKUP = {
   3252             STAY_ON_WHILE_PLUGGED_IN,   // moved to global
   3253             WIFI_USE_STATIC_IP,
   3254             WIFI_STATIC_IP,
   3255             WIFI_STATIC_GATEWAY,
   3256             WIFI_STATIC_NETMASK,
   3257             WIFI_STATIC_DNS1,
   3258             WIFI_STATIC_DNS2,
   3259             BLUETOOTH_DISCOVERABILITY,
   3260             BLUETOOTH_DISCOVERABILITY_TIMEOUT,
   3261             DIM_SCREEN,
   3262             SCREEN_OFF_TIMEOUT,
   3263             SCREEN_BRIGHTNESS,
   3264             SCREEN_BRIGHTNESS_MODE,
   3265             SCREEN_AUTO_BRIGHTNESS_ADJ,
   3266             VIBRATE_INPUT_DEVICES,
   3267             MODE_RINGER_STREAMS_AFFECTED,
   3268             TEXT_AUTO_REPLACE,
   3269             TEXT_AUTO_CAPS,
   3270             TEXT_AUTO_PUNCTUATE,
   3271             TEXT_SHOW_PASSWORD,
   3272             AUTO_TIME,                  // moved to global
   3273             AUTO_TIME_ZONE,             // moved to global
   3274             TIME_12_24,
   3275             DATE_FORMAT,
   3276             DTMF_TONE_WHEN_DIALING,
   3277             DTMF_TONE_TYPE_WHEN_DIALING,
   3278             HEARING_AID,
   3279             TTY_MODE,
   3280             SOUND_EFFECTS_ENABLED,
   3281             HAPTIC_FEEDBACK_ENABLED,
   3282             POWER_SOUNDS_ENABLED,       // moved to global
   3283             DOCK_SOUNDS_ENABLED,        // moved to global
   3284             LOCKSCREEN_SOUNDS_ENABLED,
   3285             SHOW_WEB_SUGGESTIONS,
   3286             NOTIFICATION_LIGHT_PULSE,
   3287             SIP_CALL_OPTIONS,
   3288             SIP_RECEIVE_CALLS,
   3289             POINTER_SPEED,
   3290             VIBRATE_WHEN_RINGING,
   3291             RINGTONE,
   3292             LOCK_TO_APP_ENABLED,
   3293             NOTIFICATION_SOUND
   3294         };
   3295 
   3296         /**
   3297          * These are all public system settings
   3298          *
   3299          * @hide
   3300          */
   3301         public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
   3302         static {
   3303             PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
   3304             PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
   3305             PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
   3306             PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
   3307             PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
   3308             PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
   3309             PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
   3310             PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
   3311             PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
   3312             PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
   3313             PUBLIC_SETTINGS.add(FONT_SCALE);
   3314             PUBLIC_SETTINGS.add(DIM_SCREEN);
   3315             PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
   3316             PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
   3317             PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
   3318             PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
   3319             PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
   3320             PUBLIC_SETTINGS.add(VIBRATE_ON);
   3321             PUBLIC_SETTINGS.add(VOLUME_RING);
   3322             PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
   3323             PUBLIC_SETTINGS.add(VOLUME_VOICE);
   3324             PUBLIC_SETTINGS.add(VOLUME_MUSIC);
   3325             PUBLIC_SETTINGS.add(VOLUME_ALARM);
   3326             PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
   3327             PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
   3328             PUBLIC_SETTINGS.add(RINGTONE);
   3329             PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
   3330             PUBLIC_SETTINGS.add(ALARM_ALERT);
   3331             PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
   3332             PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
   3333             PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
   3334             PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
   3335             PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
   3336             PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
   3337             PUBLIC_SETTINGS.add(TIME_12_24);
   3338             PUBLIC_SETTINGS.add(DATE_FORMAT);
   3339             PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
   3340             PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
   3341             PUBLIC_SETTINGS.add(USER_ROTATION);
   3342             PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
   3343             PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
   3344             PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
   3345             PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
   3346         }
   3347 
   3348         /**
   3349          * These are all hidden system settings.
   3350          *
   3351          * @hide
   3352          */
   3353         public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
   3354         static {
   3355             PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
   3356             PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
   3357             PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
   3358             PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
   3359             PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
   3360             PRIVATE_SETTINGS.add(VOLUME_MASTER);
   3361             PRIVATE_SETTINGS.add(VOLUME_MASTER_MUTE);
   3362             PRIVATE_SETTINGS.add(MICROPHONE_MUTE);
   3363             PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
   3364             PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
   3365             PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
   3366             PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
   3367             PRIVATE_SETTINGS.add(VIBRATE_WHEN_RINGING);
   3368             PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
   3369             PRIVATE_SETTINGS.add(HEARING_AID);
   3370             PRIVATE_SETTINGS.add(TTY_MODE);
   3371             PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
   3372             PRIVATE_SETTINGS.add(POINTER_LOCATION);
   3373             PRIVATE_SETTINGS.add(SHOW_TOUCHES);
   3374             PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
   3375             PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
   3376             PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
   3377             PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
   3378             PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
   3379             PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
   3380             PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
   3381             PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
   3382             PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
   3383             PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
   3384             PRIVATE_SETTINGS.add(LOCK_SOUND);
   3385             PRIVATE_SETTINGS.add(UNLOCK_SOUND);
   3386             PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
   3387             PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
   3388             PRIVATE_SETTINGS.add(SIP_ALWAYS);
   3389             PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
   3390             PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
   3391             PRIVATE_SETTINGS.add(POINTER_SPEED);
   3392             PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
   3393             PRIVATE_SETTINGS.add(EGG_MODE);
   3394         }
   3395 
   3396         /**
   3397          * These are all public system settings
   3398          *
   3399          * @hide
   3400          */
   3401         public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
   3402         static {
   3403             VALIDATORS.put(END_BUTTON_BEHAVIOR,END_BUTTON_BEHAVIOR_VALIDATOR);
   3404             VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
   3405             VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
   3406             VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
   3407                     BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
   3408             VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
   3409             VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
   3410             VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
   3411             VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
   3412             VALIDATORS.put(SCREEN_BRIGHTNESS, SCREEN_BRIGHTNESS_VALIDATOR);
   3413             VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
   3414             VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
   3415             VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
   3416             VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
   3417             VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
   3418             VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
   3419             VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
   3420             VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
   3421             VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
   3422             VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
   3423             VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
   3424             VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
   3425             VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
   3426             VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
   3427             VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
   3428             VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
   3429             VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
   3430             VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
   3431             VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
   3432             VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
   3433             VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
   3434             VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
   3435             VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
   3436             VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
   3437             VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
   3438             VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
   3439             VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
   3440             VALIDATORS.put(VOLUME_MASTER_MUTE, VOLUME_MASTER_MUTE_VALIDATOR);
   3441             VALIDATORS.put(MICROPHONE_MUTE, MICROPHONE_MUTE_VALIDATOR);
   3442             VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
   3443             VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
   3444             VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
   3445             VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
   3446                     HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
   3447             VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
   3448             VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
   3449             VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
   3450             VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
   3451             VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
   3452             VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
   3453             VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
   3454             VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
   3455                     WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
   3456             VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
   3457             VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
   3458             VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
   3459             VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
   3460             VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
   3461             VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
   3462             VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
   3463             VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
   3464             VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
   3465             VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
   3466             VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
   3467             VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
   3468             VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
   3469             VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
   3470             VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
   3471         }
   3472 
   3473         /**
   3474          * These entries are considered common between the personal and the managed profile,
   3475          * since the managed profile doesn't get to change them.
   3476          */
   3477         private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
   3478         static {
   3479             CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
   3480             CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
   3481             CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
   3482             CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
   3483             CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
   3484         }
   3485 
   3486         /** @hide */
   3487         public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
   3488             outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
   3489         }
   3490 
   3491         /**
   3492          * When to use Wi-Fi calling
   3493          *
   3494          * @see android.telephony.TelephonyManager.WifiCallingChoices
   3495          * @hide
   3496          */
   3497         public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";
   3498 
   3499         // Settings moved to Settings.Secure
   3500 
   3501         /**
   3502          * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
   3503          * instead
   3504          */
   3505         @Deprecated
   3506         public static final String ADB_ENABLED = Global.ADB_ENABLED;
   3507 
   3508         /**
   3509          * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
   3510          */
   3511         @Deprecated
   3512         public static final String ANDROID_ID = Secure.ANDROID_ID;
   3513 
   3514         /**
   3515          * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
   3516          */
   3517         @Deprecated
   3518         public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
   3519 
   3520         /**
   3521          * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
   3522          */
   3523         @Deprecated
   3524         public static final String DATA_ROAMING = Global.DATA_ROAMING;
   3525 
   3526         /**
   3527          * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
   3528          */
   3529         @Deprecated
   3530         public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
   3531 
   3532         /**
   3533          * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
   3534          */
   3535         @Deprecated
   3536         public static final String HTTP_PROXY = Global.HTTP_PROXY;
   3537 
   3538         /**
   3539          * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
   3540          */
   3541         @Deprecated
   3542         public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
   3543 
   3544         /**
   3545          * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
   3546          * instead
   3547          */
   3548         @Deprecated
   3549         public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;
   3550 
   3551         /**
   3552          * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
   3553          */
   3554         @Deprecated
   3555         public static final String LOGGING_ID = Secure.LOGGING_ID;
   3556 
   3557         /**
   3558          * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
   3559          */
   3560         @Deprecated
   3561         public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
   3562 
   3563         /**
   3564          * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
   3565          * instead
   3566          */
   3567         @Deprecated
   3568         public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;
   3569 
   3570         /**
   3571          * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
   3572          * instead
   3573          */
   3574         @Deprecated
   3575         public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;
   3576 
   3577         /**
   3578          * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
   3579          * instead
   3580          */
   3581         @Deprecated
   3582         public static final String PARENTAL_CONTROL_REDIRECT_URL =
   3583             Secure.PARENTAL_CONTROL_REDIRECT_URL;
   3584 
   3585         /**
   3586          * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
   3587          */
   3588         @Deprecated
   3589         public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;
   3590 
   3591         /**
   3592          * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
   3593          */
   3594         @Deprecated
   3595         public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
   3596 
   3597         /**
   3598          * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
   3599          */
   3600         @Deprecated
   3601         public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
   3602 
   3603        /**
   3604          * @deprecated Use
   3605          * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
   3606          */
   3607         @Deprecated
   3608         public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
   3609 
   3610         /**
   3611          * @deprecated Use
   3612          * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
   3613          */
   3614         @Deprecated
   3615         public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
   3616                 Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
   3617 
   3618         /**
   3619          * @deprecated Use
   3620          * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
   3621          */
   3622         @Deprecated
   3623         public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
   3624                 Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
   3625 
   3626         /**
   3627          * @deprecated Use
   3628          * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
   3629          */
   3630         @Deprecated
   3631         public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
   3632                 Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
   3633 
   3634         /**
   3635          * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
   3636          * instead
   3637          */
   3638         @Deprecated
   3639         public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
   3640 
   3641         /**
   3642          * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
   3643          */
   3644         @Deprecated
   3645         public static final String WIFI_ON = Global.WIFI_ON;
   3646 
   3647         /**
   3648          * @deprecated Use
   3649          * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
   3650          * instead
   3651          */
   3652         @Deprecated
   3653         public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
   3654                 Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;
   3655 
   3656         /**
   3657          * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
   3658          */
   3659         @Deprecated
   3660         public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;
   3661 
   3662         /**
   3663          * @deprecated Use
   3664          * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
   3665          */
   3666         @Deprecated
   3667         public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
   3668                 Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;
   3669 
   3670         /**
   3671          * @deprecated Use
   3672          * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
   3673          */
   3674         @Deprecated
   3675         public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
   3676                 Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;
   3677 
   3678         /**
   3679          * @deprecated Use
   3680          * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
   3681          * instead
   3682          */
   3683         @Deprecated
   3684         public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
   3685                 Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;
   3686 
   3687         /**
   3688          * @deprecated Use
   3689          * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
   3690          */
   3691         @Deprecated
   3692         public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
   3693             Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;
   3694 
   3695         /**
   3696          * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
   3697          * instead
   3698          */
   3699         @Deprecated
   3700         public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;
   3701 
   3702         /**
   3703          * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
   3704          */
   3705         @Deprecated
   3706         public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;
   3707 
   3708         /**
   3709          * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
   3710          */
   3711         @Deprecated
   3712         public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;
   3713 
   3714         /**
   3715          * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
   3716          * instead
   3717          */
   3718         @Deprecated
   3719         public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;
   3720 
   3721         /**
   3722          * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
   3723          * instead
   3724          */
   3725         @Deprecated
   3726         public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
   3727             Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;
   3728 
   3729         /**
   3730          * An app can use this method to check if it is currently allowed to write or modify system
   3731          * settings. In order to gain write access to the system settings, an app must declare the
   3732          * {@link android.Manifest.permission#WRITE_SETTINGS} permission in its manifest. If it is
   3733          * currently disallowed, it can prompt the user to grant it this capability through a
   3734          * management UI by sending an Intent with action
   3735          * {@link android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}.
   3736          *
   3737          * @param context A context
   3738          * @return true if the calling app can write to system settings, false otherwise
   3739          */
   3740         public static boolean canWrite(Context context) {
   3741             int uid = Binder.getCallingUid();
   3742             return isCallingPackageAllowedToWriteSettings(context, uid, getPackageNameForUid(
   3743                     context, uid), false);
   3744         }
   3745     }
   3746 
   3747     /**
   3748      * Secure system settings, containing system preferences that applications
   3749      * can read but are not allowed to write.  These are for preferences that
   3750      * the user must explicitly modify through the system UI or specialized
   3751      * APIs for those values, not modified directly by applications.
   3752      */
   3753     public static final class Secure extends NameValueTable {
   3754         public static final String SYS_PROP_SETTING_VERSION = "sys.settings_secure_version";
   3755 
   3756         /**
   3757          * The content:// style URL for this table
   3758          */
   3759         public static final Uri CONTENT_URI =
   3760             Uri.parse("content://" + AUTHORITY + "/secure");
   3761 
   3762         // Populated lazily, guarded by class object:
   3763         private static final NameValueCache sNameValueCache = new NameValueCache(
   3764                 SYS_PROP_SETTING_VERSION,
   3765                 CONTENT_URI,
   3766                 CALL_METHOD_GET_SECURE,
   3767                 CALL_METHOD_PUT_SECURE);
   3768 
   3769         private static ILockSettings sLockSettings = null;
   3770 
   3771         private static boolean sIsSystemProcess;
   3772         private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
   3773         private static final HashSet<String> MOVED_TO_GLOBAL;
   3774         static {
   3775             MOVED_TO_LOCK_SETTINGS = new HashSet<String>(3);
   3776             MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
   3777             MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
   3778             MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
   3779 
   3780             MOVED_TO_GLOBAL = new HashSet<String>();
   3781             MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
   3782             MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
   3783             MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
   3784             MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
   3785             MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
   3786             MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
   3787             MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
   3788             MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
   3789             MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
   3790             MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
   3791             MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
   3792             MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
   3793             MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_DENSITY_FORCED);
   3794             MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
   3795             MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
   3796             MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
   3797             MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
   3798             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
   3799             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
   3800             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
   3801             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
   3802             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
   3803             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
   3804             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
   3805             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
   3806             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
   3807             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
   3808             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
   3809             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
   3810             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
   3811             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
   3812             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
   3813             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
   3814             MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
   3815             MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
   3816             MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
   3817             MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
   3818             MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
   3819             MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
   3820             MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
   3821             MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
   3822             MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
   3823             MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
   3824             MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
   3825             MOVED_TO_GLOBAL.add(Settings.Global.SAMPLING_PROFILER_MS);
   3826             MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
   3827             MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
   3828             MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
   3829             MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
   3830             MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
   3831             MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
   3832             MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
   3833             MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
   3834             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
   3835             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
   3836             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
   3837             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
   3838             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
   3839             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
   3840             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
   3841             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
   3842             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
   3843             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
   3844             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
   3845             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
   3846             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
   3847             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
   3848             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
   3849             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
   3850             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
   3851             MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
   3852             MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
   3853             MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
   3854             MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
   3855             MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
   3856             MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
   3857             MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
   3858             MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
   3859             MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
   3860             MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
   3861             MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
   3862             MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
   3863             MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
   3864             MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
   3865             MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
   3866             MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
   3867             MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
   3868             MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
   3869             MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
   3870             MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
   3871             MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
   3872             MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
   3873             MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
   3874             MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
   3875             MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
   3876             MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
   3877             MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
   3878             MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
   3879             MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
   3880             MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
   3881             MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
   3882             MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
   3883             MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
   3884             MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
   3885             MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
   3886             MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
   3887             MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
   3888             MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
   3889             MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
   3890             MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
   3891             MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
   3892             MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
   3893         }
   3894 
   3895         /** @hide */
   3896         public static void getMovedToGlobalSettings(Set<String> outKeySet) {
   3897             outKeySet.addAll(MOVED_TO_GLOBAL);
   3898         }
   3899 
   3900         /**
   3901          * Look up a name in the database.
   3902          * @param resolver to access the database with
   3903          * @param name to look up in the table
   3904          * @return the corresponding value, or null if not present
   3905          */
   3906         public static String getString(ContentResolver resolver, String name) {
   3907             return getStringForUser(resolver, name, UserHandle.myUserId());
   3908         }
   3909 
   3910         /** @hide */
   3911         public static String getStringForUser(ContentResolver resolver, String name,
   3912                 int userHandle) {
   3913             if (MOVED_TO_GLOBAL.contains(name)) {
   3914                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
   3915                         + " to android.provider.Settings.Global.");
   3916                 return Global.getStringForUser(resolver, name, userHandle);
   3917             }
   3918 
   3919             if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
   3920                 synchronized (Secure.class) {
   3921                     if (sLockSettings == null) {
   3922                         sLockSettings = ILockSettings.Stub.asInterface(
   3923                                 (IBinder) ServiceManager.getService("lock_settings"));
   3924                         sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
   3925                     }
   3926                 }
   3927                 if (sLockSettings != null && !sIsSystemProcess) {
   3928                     // No context; use the ActivityThread's context as an approximation for
   3929                     // determining the target API level.
   3930                     Application application = ActivityThread.currentApplication();
   3931 
   3932                     boolean isPreMnc = application != null
   3933                             && application.getApplicationInfo() != null
   3934                             && application.getApplicationInfo().targetSdkVersion
   3935                             <= VERSION_CODES.LOLLIPOP_MR1;
   3936                     if (isPreMnc) {
   3937                         try {
   3938                             return sLockSettings.getString(name, "0", userHandle);
   3939                         } catch (RemoteException re) {
   3940                             // Fall through
   3941                         }
   3942                     } else {
   3943                         throw new SecurityException("Settings.Secure." + name
   3944                                 + " is deprecated and no longer accessible."
   3945                                 + " See API documentation for potential replacements.");
   3946                     }
   3947                 }
   3948             }
   3949 
   3950             return sNameValueCache.getStringForUser(resolver, name, userHandle);
   3951         }
   3952 
   3953         /**
   3954          * Store a name/value pair into the database.
   3955          * @param resolver to access the database with
   3956          * @param name to store
   3957          * @param value to associate with the name
   3958          * @return true if the value was set, false on database errors
   3959          */
   3960         public static boolean putString(ContentResolver resolver, String name, String value) {
   3961             return putStringForUser(resolver, name, value, UserHandle.myUserId());
   3962         }
   3963 
   3964         /** @hide */
   3965         public static boolean putStringForUser(ContentResolver resolver, String name, String value,
   3966                 int userHandle) {
   3967             if (LOCATION_MODE.equals(name)) {
   3968                 // HACK ALERT: temporary hack to work around b/10491283.
   3969                 // TODO: once b/10491283 fixed, remove this hack
   3970                 return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
   3971             }
   3972             if (MOVED_TO_GLOBAL.contains(name)) {
   3973                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
   3974                         + " to android.provider.Settings.Global");
   3975                 return Global.putStringForUser(resolver, name, value, userHandle);
   3976             }
   3977             return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
   3978         }
   3979 
   3980         /**
   3981          * Construct the content URI for a particular name/value pair,
   3982          * useful for monitoring changes with a ContentObserver.
   3983          * @param name to look up in the table
   3984          * @return the corresponding content URI, or null if not present
   3985          */
   3986         public static Uri getUriFor(String name) {
   3987             if (MOVED_TO_GLOBAL.contains(name)) {
   3988                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
   3989                         + " to android.provider.Settings.Global, returning global URI.");
   3990                 return Global.getUriFor(Global.CONTENT_URI, name);
   3991             }
   3992             return getUriFor(CONTENT_URI, name);
   3993         }
   3994 
   3995         /**
   3996          * Convenience function for retrieving a single secure settings value
   3997          * as an integer.  Note that internally setting values are always
   3998          * stored as strings; this function converts the string to an integer
   3999          * for you.  The default value will be returned if the setting is
   4000          * not defined or not an integer.
   4001          *
   4002          * @param cr The ContentResolver to access.
   4003          * @param name The name of the setting to retrieve.
   4004          * @param def Value to return if the setting is not defined.
   4005          *
   4006          * @return The setting's current value, or 'def' if it is not defined
   4007          * or not a valid integer.
   4008          */
   4009         public static int getInt(ContentResolver cr, String name, int def) {
   4010             return getIntForUser(cr, name, def, UserHandle.myUserId());
   4011         }
   4012 
   4013         /** @hide */
   4014         public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
   4015             if (LOCATION_MODE.equals(name)) {
   4016                 // HACK ALERT: temporary hack to work around b/10491283.
   4017                 // TODO: once b/10491283 fixed, remove this hack
   4018                 return getLocationModeForUser(cr, userHandle);
   4019             }
   4020             String v = getStringForUser(cr, name, userHandle);
   4021             try {
   4022                 return v != null ? Integer.parseInt(v) : def;
   4023             } catch (NumberFormatException e) {
   4024                 return def;
   4025             }
   4026         }
   4027 
   4028         /**
   4029          * Convenience function for retrieving a single secure settings value
   4030          * as an integer.  Note that internally setting values are always
   4031          * stored as strings; this function converts the string to an integer
   4032          * for you.
   4033          * <p>
   4034          * This version does not take a default value.  If the setting has not
   4035          * been set, or the string value is not a number,
   4036          * it throws {@link SettingNotFoundException}.
   4037          *
   4038          * @param cr The ContentResolver to access.
   4039          * @param name The name of the setting to retrieve.
   4040          *
   4041          * @throws SettingNotFoundException Thrown if a setting by the given
   4042          * name can't be found or the setting value is not an integer.
   4043          *
   4044          * @return The setting's current value.
   4045          */
   4046         public static int getInt(ContentResolver cr, String name)
   4047                 throws SettingNotFoundException {
   4048             return getIntForUser(cr, name, UserHandle.myUserId());
   4049         }
   4050 
   4051         /** @hide */
   4052         public static int getIntForUser(ContentResolver cr, String name, int userHandle)
   4053                 throws SettingNotFoundException {
   4054             if (LOCATION_MODE.equals(name)) {
   4055                 // HACK ALERT: temporary hack to work around b/10491283.
   4056                 // TODO: once b/10491283 fixed, remove this hack
   4057                 return getLocationModeForUser(cr, userHandle);
   4058             }
   4059             String v = getStringForUser(cr, name, userHandle);
   4060             try {
   4061                 return Integer.parseInt(v);
   4062             } catch (NumberFormatException e) {
   4063                 throw new SettingNotFoundException(name);
   4064             }
   4065         }
   4066 
   4067         /**
   4068          * Convenience function for updating a single settings value as an
   4069          * integer. This will either create a new entry in the table if the
   4070          * given name does not exist, or modify the value of the existing row
   4071          * with that name.  Note that internally setting values are always
   4072          * stored as strings, so this function converts the given value to a
   4073          * string before storing it.
   4074          *
   4075          * @param cr The ContentResolver to access.
   4076          * @param name The name of the setting to modify.
   4077          * @param value The new value for the setting.
   4078          * @return true if the value was set, false on database errors
   4079          */
   4080         public static boolean putInt(ContentResolver cr, String name, int value) {
   4081             return putIntForUser(cr, name, value, UserHandle.myUserId());
   4082         }
   4083 
   4084         /** @hide */
   4085         public static boolean putIntForUser(ContentResolver cr, String name, int value,
   4086                 int userHandle) {
   4087             return putStringForUser(cr, name, Integer.toString(value), userHandle);
   4088         }
   4089 
   4090         /**
   4091          * Convenience function for retrieving a single secure settings value
   4092          * as a {@code long}.  Note that internally setting values are always
   4093          * stored as strings; this function converts the string to a {@code long}
   4094          * for you.  The default value will be returned if the setting is
   4095          * not defined or not a {@code long}.
   4096          *
   4097          * @param cr The ContentResolver to access.
   4098          * @param name The name of the setting to retrieve.
   4099          * @param def Value to return if the setting is not defined.
   4100          *
   4101          * @return The setting's current value, or 'def' if it is not defined
   4102          * or not a valid {@code long}.
   4103          */
   4104         public static long getLong(ContentResolver cr, String name, long def) {
   4105             return getLongForUser(cr, name, def, UserHandle.myUserId());
   4106         }
   4107 
   4108         /** @hide */
   4109         public static long getLongForUser(ContentResolver cr, String name, long def,
   4110                 int userHandle) {
   4111             String valString = getStringForUser(cr, name, userHandle);
   4112             long value;
   4113             try {
   4114                 value = valString != null ? Long.parseLong(valString) : def;
   4115             } catch (NumberFormatException e) {
   4116                 value = def;
   4117             }
   4118             return value;
   4119         }
   4120 
   4121         /**
   4122          * Convenience function for retrieving a single secure settings value
   4123          * as a {@code long}.  Note that internally setting values are always
   4124          * stored as strings; this function converts the string to a {@code long}
   4125          * for you.
   4126          * <p>
   4127          * This version does not take a default value.  If the setting has not
   4128          * been set, or the string value is not a number,
   4129          * it throws {@link SettingNotFoundException}.
   4130          *
   4131          * @param cr The ContentResolver to access.
   4132          * @param name The name of the setting to retrieve.
   4133          *
   4134          * @return The setting's current value.
   4135          * @throws SettingNotFoundException Thrown if a setting by the given
   4136          * name can't be found or the setting value is not an integer.
   4137          */
   4138         public static long getLong(ContentResolver cr, String name)
   4139                 throws SettingNotFoundException {
   4140             return getLongForUser(cr, name, UserHandle.myUserId());
   4141         }
   4142 
   4143         /** @hide */
   4144         public static long getLongForUser(ContentResolver cr, String name, int userHandle)
   4145                 throws SettingNotFoundException {
   4146             String valString = getStringForUser(cr, name, userHandle);
   4147             try {
   4148                 return Long.parseLong(valString);
   4149             } catch (NumberFormatException e) {
   4150                 throw new SettingNotFoundException(name);
   4151             }
   4152         }
   4153 
   4154         /**
   4155          * Convenience function for updating a secure settings value as a long
   4156          * integer. This will either create a new entry in the table if the
   4157          * given name does not exist, or modify the value of the existing row
   4158          * with that name.  Note that internally setting values are always
   4159          * stored as strings, so this function converts the given value to a
   4160          * string before storing it.
   4161          *
   4162          * @param cr The ContentResolver to access.
   4163          * @param name The name of the setting to modify.
   4164          * @param value The new value for the setting.
   4165          * @return true if the value was set, false on database errors
   4166          */
   4167         public static boolean putLong(ContentResolver cr, String name, long value) {
   4168             return putLongForUser(cr, name, value, UserHandle.myUserId());
   4169         }
   4170 
   4171         /** @hide */
   4172         public static boolean putLongForUser(ContentResolver cr, String name, long value,
   4173                 int userHandle) {
   4174             return putStringForUser(cr, name, Long.toString(value), userHandle);
   4175         }
   4176 
   4177         /**
   4178          * Convenience function for retrieving a single secure settings value
   4179          * as a floating point number.  Note that internally setting values are
   4180          * always stored as strings; this function converts the string to an
   4181          * float for you. The default value will be returned if the setting
   4182          * is not defined or not a valid float.
   4183          *
   4184          * @param cr The ContentResolver to access.
   4185          * @param name The name of the setting to retrieve.
   4186          * @param def Value to return if the setting is not defined.
   4187          *
   4188          * @return The setting's current value, or 'def' if it is not defined
   4189          * or not a valid float.
   4190          */
   4191         public static float getFloat(ContentResolver cr, String name, float def) {
   4192             return getFloatForUser(cr, name, def, UserHandle.myUserId());
   4193         }
   4194 
   4195         /** @hide */
   4196         public static float getFloatForUser(ContentResolver cr, String name, float def,
   4197                 int userHandle) {
   4198             String v = getStringForUser(cr, name, userHandle);
   4199             try {
   4200                 return v != null ? Float.parseFloat(v) : def;
   4201             } catch (NumberFormatException e) {
   4202                 return def;
   4203             }
   4204         }
   4205 
   4206         /**
   4207          * Convenience function for retrieving a single secure settings value
   4208          * as a float.  Note that internally setting values are always
   4209          * stored as strings; this function converts the string to a float
   4210          * for you.
   4211          * <p>
   4212          * This version does not take a default value.  If the setting has not
   4213          * been set, or the string value is not a number,
   4214          * it throws {@link SettingNotFoundException}.
   4215          *
   4216          * @param cr The ContentResolver to access.
   4217          * @param name The name of the setting to retrieve.
   4218          *
   4219          * @throws SettingNotFoundException Thrown if a setting by the given
   4220          * name can't be found or the setting value is not a float.
   4221          *
   4222          * @return The setting's current value.
   4223          */
   4224         public static float getFloat(ContentResolver cr, String name)
   4225                 throws SettingNotFoundException {
   4226             return getFloatForUser(cr, name, UserHandle.myUserId());
   4227         }
   4228 
   4229         /** @hide */
   4230         public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
   4231                 throws SettingNotFoundException {
   4232             String v = getStringForUser(cr, name, userHandle);
   4233             if (v == null) {
   4234                 throw new SettingNotFoundException(name);
   4235             }
   4236             try {
   4237                 return Float.parseFloat(v);
   4238             } catch (NumberFormatException e) {
   4239                 throw new SettingNotFoundException(name);
   4240             }
   4241         }
   4242 
   4243         /**
   4244          * Convenience function for updating a single settings value as a
   4245          * floating point number. This will either create a new entry in the
   4246          * table if the given name does not exist, or modify the value of the
   4247          * existing row with that name.  Note that internally setting values
   4248          * are always stored as strings, so this function converts the given
   4249          * value to a string before storing it.
   4250          *
   4251          * @param cr The ContentResolver to access.
   4252          * @param name The name of the setting to modify.
   4253          * @param value The new value for the setting.
   4254          * @return true if the value was set, false on database errors
   4255          */
   4256         public static boolean putFloat(ContentResolver cr, String name, float value) {
   4257             return putFloatForUser(cr, name, value, UserHandle.myUserId());
   4258         }
   4259 
   4260         /** @hide */
   4261         public static boolean putFloatForUser(ContentResolver cr, String name, float value,
   4262                 int userHandle) {
   4263             return putStringForUser(cr, name, Float.toString(value), userHandle);
   4264         }
   4265 
   4266         /**
   4267          * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
   4268          * instead
   4269          */
   4270         @Deprecated
   4271         public static final String DEVELOPMENT_SETTINGS_ENABLED =
   4272                 Global.DEVELOPMENT_SETTINGS_ENABLED;
   4273 
   4274         /**
   4275          * When the user has enable the option to have a "bug report" command
   4276          * in the power menu.
   4277          * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
   4278          * @hide
   4279          */
   4280         @Deprecated
   4281         public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
   4282 
   4283         /**
   4284          * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
   4285          */
   4286         @Deprecated
   4287         public static final String ADB_ENABLED = Global.ADB_ENABLED;
   4288 
   4289         /**
   4290          * Setting to allow mock locations and location provider status to be injected into the
   4291          * LocationManager service for testing purposes during application development.  These
   4292          * locations and status values  override actual location and status information generated
   4293          * by network, gps, or other location providers.
   4294          *
   4295          * @deprecated This settings is not used anymore.
   4296          */
   4297         @Deprecated
   4298         public static final String ALLOW_MOCK_LOCATION = "mock_location";
   4299 
   4300         /**
   4301          * A 64-bit number (as a hex string) that is randomly
   4302          * generated when the user first sets up the device and should remain
   4303          * constant for the lifetime of the user's device. The value may
   4304          * change if a factory reset is performed on the device.
   4305          * <p class="note"><strong>Note:</strong> When a device has <a
   4306          * href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">multiple users</a>
   4307          * (available on certain devices running Android 4.2 or higher), each user appears as a
   4308          * completely separate device, so the {@code ANDROID_ID} value is unique to each
   4309          * user.</p>
   4310          */
   4311         public static final String ANDROID_ID = "android_id";
   4312 
   4313         /**
   4314          * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
   4315          */
   4316         @Deprecated
   4317         public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;
   4318 
   4319         /**
   4320          * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
   4321          */
   4322         @Deprecated
   4323         public static final String DATA_ROAMING = Global.DATA_ROAMING;
   4324 
   4325         /**
   4326          * Setting to record the input method used by default, holding the ID
   4327          * of the desired method.
   4328          */
   4329         public static final String DEFAULT_INPUT_METHOD = "default_input_method";
   4330 
   4331         /**
   4332          * Setting to record the input method subtype used by default, holding the ID
   4333          * of the desired method.
   4334          */
   4335         public static final String SELECTED_INPUT_METHOD_SUBTYPE =
   4336                 "selected_input_method_subtype";
   4337 
   4338         /**
   4339          * Setting to record the history of input method subtype, holding the pair of ID of IME
   4340          * and its last used subtype.
   4341          * @hide
   4342          */
   4343         public static final String INPUT_METHODS_SUBTYPE_HISTORY =
   4344                 "input_methods_subtype_history";
   4345 
   4346         /**
   4347          * Setting to record the visibility of input method selector
   4348          */
   4349         public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
   4350                 "input_method_selector_visibility";
   4351 
   4352         /**
   4353          * The currently selected voice interaction service flattened ComponentName.
   4354          * @hide
   4355          */
   4356         public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";
   4357 
   4358         /**
   4359          * bluetooth HCI snoop log configuration
   4360          * @hide
   4361          */
   4362         public static final String BLUETOOTH_HCI_LOG =
   4363                 "bluetooth_hci_log";
   4364 
   4365         /**
   4366          * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
   4367          */
   4368         @Deprecated
   4369         public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;
   4370 
   4371         /**
   4372          * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
   4373          * @hide
   4374          */
   4375         public static final String USER_SETUP_COMPLETE = "user_setup_complete";
   4376 
   4377         /**
   4378          * List of input methods that are currently enabled.  This is a string
   4379          * containing the IDs of all enabled input methods, each ID separated
   4380          * by ':'.
   4381          */
   4382         public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";
   4383 
   4384         /**
   4385          * List of system input methods that are currently disabled.  This is a string
   4386          * containing the IDs of all disabled input methods, each ID separated
   4387          * by ':'.
   4388          * @hide
   4389          */
   4390         public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";
   4391 
   4392         /**
   4393          * Whether to show the IME when a hard keyboard is connected. This is a boolean that
   4394          * determines if the IME should be shown when a hard keyboard is attached.
   4395          * @hide
   4396          */
   4397         public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";
   4398 
   4399         /**
   4400          * Host name and port for global http proxy. Uses ':' seperator for
   4401          * between host and port.
   4402          *
   4403          * @deprecated Use {@link Global#HTTP_PROXY}
   4404          */
   4405         @Deprecated
   4406         public static final String HTTP_PROXY = Global.HTTP_PROXY;
   4407 
   4408         /**
   4409          * Whether applications can be installed for this user via the system's
   4410          * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
   4411          *
   4412          * <p>1 = permit app installation via the system package installer intent
   4413          * <p>0 = do not allow use of the package installer
   4414          */
   4415         public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";
   4416 
   4417         /**
   4418          * Comma-separated list of location providers that activities may access. Do not rely on
   4419          * this value being present in settings.db or on ContentObserver notifications on the
   4420          * corresponding Uri.
   4421          *
   4422          * @deprecated use {@link #LOCATION_MODE} and
   4423          * {@link LocationManager#MODE_CHANGED_ACTION} (or
   4424          * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
   4425          */
   4426         @Deprecated
   4427         public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";
   4428 
   4429         /**
   4430          * The degree of location access enabled by the user.
   4431          * <p>
   4432          * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
   4433          * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
   4434          * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
   4435          * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
   4436          * modes that might be added in the future.
   4437          * <p>
   4438          * Note: do not rely on this value being present in settings.db or on ContentObserver
   4439          * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
   4440          * to receive changes in this value.
   4441          */
   4442         public static final String LOCATION_MODE = "location_mode";
   4443 
   4444         /**
   4445          * Location access disabled.
   4446          */
   4447         public static final int LOCATION_MODE_OFF = 0;
   4448         /**
   4449          * Network Location Provider disabled, but GPS and other sensors enabled.
   4450          */
   4451         public static final int LOCATION_MODE_SENSORS_ONLY = 1;
   4452         /**
   4453          * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
   4454          * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
   4455          * {@link android.location.Criteria#POWER_MEDIUM}.
   4456          */
   4457         public static final int LOCATION_MODE_BATTERY_SAVING = 2;
   4458         /**
   4459          * Best-effort location computation allowed.
   4460          */
   4461         public static final int LOCATION_MODE_HIGH_ACCURACY = 3;
   4462 
   4463         /**
   4464          * A flag containing settings used for biometric weak
   4465          * @hide
   4466          */
   4467         @Deprecated
   4468         public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
   4469                 "lock_biometric_weak_flags";
   4470 
   4471         /**
   4472          * Whether lock-to-app will lock the keyguard when exiting.
   4473          * @hide
   4474          */
   4475         public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";
   4476 
   4477         /**
   4478          * Whether autolock is enabled (0 = false, 1 = true)
   4479          *
   4480          * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
   4481          *             level of the keyguard. Accessing this setting from an app that is targeting
   4482          *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
   4483          */
   4484         @Deprecated
   4485         public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";
   4486 
   4487         /**
   4488          * Whether lock pattern is visible as user enters (0 = false, 1 = true)
   4489          *
   4490          * @deprecated Accessing this setting from an app that is targeting
   4491          *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
   4492          */
   4493         @Deprecated
   4494         public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";
   4495 
   4496         /**
   4497          * Whether lock pattern will vibrate as user enters (0 = false, 1 =
   4498          * true)
   4499          *
   4500          * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
   4501          *             lockscreen uses
   4502          *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
   4503          *             Accessing this setting from an app that is targeting
   4504          *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
   4505          */
   4506         @Deprecated
   4507         public static final String
   4508                 LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";
   4509 
   4510         /**
   4511          * This preference allows the device to be locked given time after screen goes off,
   4512          * subject to current DeviceAdmin policy limits.
   4513          * @hide
   4514          */
   4515         public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";
   4516 
   4517 
   4518         /**
   4519          * This preference contains the string that shows for owner info on LockScreen.
   4520          * @hide
   4521          * @deprecated
   4522          */
   4523         public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";
   4524 
   4525         /**
   4526          * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
   4527          * @hide
   4528          */
   4529         @Deprecated
   4530         public static final String LOCK_SCREEN_APPWIDGET_IDS =
   4531             "lock_screen_appwidget_ids";
   4532 
   4533         /**
   4534          * Id of the appwidget shown on the lock screen when appwidgets are disabled.
   4535          * @hide
   4536          */
   4537         @Deprecated
   4538         public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
   4539             "lock_screen_fallback_appwidget_id";
   4540 
   4541         /**
   4542          * Index of the lockscreen appwidget to restore, -1 if none.
   4543          * @hide
   4544          */
   4545         @Deprecated
   4546         public static final String LOCK_SCREEN_STICKY_APPWIDGET =
   4547             "lock_screen_sticky_appwidget";
   4548 
   4549         /**
   4550          * This preference enables showing the owner info on LockScreen.
   4551          * @hide
   4552          * @deprecated
   4553          */
   4554         public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
   4555             "lock_screen_owner_info_enabled";
   4556 
   4557         /**
   4558          * When set by a user, allows notifications to be shown atop a securely locked screen
   4559          * in their full "private" form (same as when the device is unlocked).
   4560          * @hide
   4561          */
   4562         public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
   4563                 "lock_screen_allow_private_notifications";
   4564 
   4565         /**
   4566          * Set by the system to track if the user needs to see the call to action for
   4567          * the lockscreen notification policy.
   4568          * @hide
   4569          */
   4570         public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
   4571                 "show_note_about_notification_hiding";
   4572 
   4573         /**
   4574          * Set to 1 by the system after trust agents have been initialized.
   4575          * @hide
   4576          */
   4577         public static final String TRUST_AGENTS_INITIALIZED =
   4578                 "trust_agents_initialized";
   4579 
   4580         /**
   4581          * The Logging ID (a unique 64-bit value) as a hex string.
   4582          * Used as a pseudonymous identifier for logging.
   4583          * @deprecated This identifier is poorly initialized and has
   4584          * many collisions.  It should not be used.
   4585          */
   4586         @Deprecated
   4587         public static final String LOGGING_ID = "logging_id";
   4588 
   4589         /**
   4590          * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
   4591          */
   4592         @Deprecated
   4593         public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;
   4594 
   4595         /**
   4596          * No longer supported.
   4597          */
   4598         public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";
   4599 
   4600         /**
   4601          * No longer supported.
   4602          */
   4603         public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";
   4604 
   4605         /**
   4606          * No longer supported.
   4607          */
   4608         public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";
   4609 
   4610         /**
   4611          * Settings classname to launch when Settings is clicked from All
   4612          * Applications.  Needed because of user testing between the old
   4613          * and new Settings apps.
   4614          */
   4615         // TODO: 881807
   4616         public static final String SETTINGS_CLASSNAME = "settings_classname";
   4617 
   4618         /**
   4619          * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
   4620          */
   4621         @Deprecated
   4622         public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;
   4623 
   4624         /**
   4625          * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
   4626          */
   4627         @Deprecated
   4628         public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;
   4629 
   4630         /**
   4631          * If accessibility is enabled.
   4632          */
   4633         public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";
   4634 
   4635         /**
   4636          * If touch exploration is enabled.
   4637          */
   4638         public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";
   4639 
   4640         /**
   4641          * List of the enabled accessibility providers.
   4642          */
   4643         public static final String ENABLED_ACCESSIBILITY_SERVICES =
   4644             "enabled_accessibility_services";
   4645 
   4646         /**
   4647          * List of the accessibility services to which the user has granted
   4648          * permission to put the device into touch exploration mode.
   4649          *
   4650          * @hide
   4651          */
   4652         public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
   4653             "touch_exploration_granted_accessibility_services";
   4654 
   4655         /**
   4656          * Whether to speak passwords while in accessibility mode.
   4657          */
   4658         public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";
   4659 
   4660         /**
   4661          * Whether to draw text with high contrast while in accessibility mode.
   4662          *
   4663          * @hide
   4664          */
   4665         public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
   4666                 "high_text_contrast_enabled";
   4667 
   4668         /**
   4669          * If injection of accessibility enhancing JavaScript screen-reader
   4670          * is enabled.
   4671          * <p>
   4672          *   Note: The JavaScript based screen-reader is served by the
   4673          *   Google infrastructure and enable users with disabilities to
   4674          *   efficiently navigate in and explore web content.
   4675          * </p>
   4676          * <p>
   4677          *   This property represents a boolean value.
   4678          * </p>
   4679          * @hide
   4680          */
   4681         public static final String ACCESSIBILITY_SCRIPT_INJECTION =
   4682             "accessibility_script_injection";
   4683 
   4684         /**
   4685          * The URL for the injected JavaScript based screen-reader used
   4686          * for providing accessibility of content in WebView.
   4687          * <p>
   4688          *   Note: The JavaScript based screen-reader is served by the
   4689          *   Google infrastructure and enable users with disabilities to
   4690          *   efficiently navigate in and explore web content.
   4691          * </p>
   4692          * <p>
   4693          *   This property represents a string value.
   4694          * </p>
   4695          * @hide
   4696          */
   4697         public static final String ACCESSIBILITY_SCREEN_READER_URL =
   4698             "accessibility_script_injection_url";
   4699 
   4700         /**
   4701          * Key bindings for navigation in built-in accessibility support for web content.
   4702          * <p>
   4703          *   Note: These key bindings are for the built-in accessibility navigation for
   4704          *   web content which is used as a fall back solution if JavaScript in a WebView
   4705          *   is not enabled or the user has not opted-in script injection from Google.
   4706          * </p>
   4707          * <p>
   4708          *   The bindings are separated by semi-colon. A binding is a mapping from
   4709          *   a key to a sequence of actions (for more details look at
   4710          *   android.webkit.AccessibilityInjector). A key is represented as the hexademical
   4711          *   string representation of an integer obtained from a meta state (optional) shifted
   4712          *   sixteen times left and bitwise ored with a key code. An action is represented
   4713          *   as a hexademical string representation of an integer where the first two digits
   4714          *   are navigation action index, the second, the third, and the fourth digit pairs
   4715          *   represent the action arguments. The separate actions in a binding are colon
   4716          *   separated. The key and the action sequence it maps to are separated by equals.
   4717          * </p>
   4718          * <p>
   4719          *   For example, the binding below maps the DPAD right button to traverse the
   4720          *   current navigation axis once without firing an accessibility event and to
   4721          *   perform the same traversal again but to fire an event:
   4722          *   <code>
   4723          *     0x16=0x01000100:0x01000101;
   4724          *   </code>
   4725          * </p>
   4726          * <p>
   4727          *   The goal of this binding is to enable dynamic rebinding of keys to
   4728          *   navigation actions for web content without requiring a framework change.
   4729          * </p>
   4730          * <p>
   4731          *   This property represents a string value.
   4732          * </p>
   4733          * @hide
   4734          */
   4735         public static final String ACCESSIBILITY_WEB_CONTENT_KEY_BINDINGS =
   4736             "accessibility_web_content_key_bindings";
   4737 
   4738         /**
   4739          * Setting that specifies whether the display magnification is enabled.
   4740          * Display magnifications allows the user to zoom in the display content
   4741          * and is targeted to low vision users. The current magnification scale
   4742          * is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
   4743          *
   4744          * @hide
   4745          */
   4746         public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
   4747                 "accessibility_display_magnification_enabled";
   4748 
   4749         /**
   4750          * Setting that specifies what the display magnification scale is.
   4751          * Display magnifications allows the user to zoom in the display
   4752          * content and is targeted to low vision users. Whether a display
   4753          * magnification is performed is controlled by
   4754          * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
   4755          *
   4756          * @hide
   4757          */
   4758         public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
   4759                 "accessibility_display_magnification_scale";
   4760 
   4761         /**
   4762          * Setting that specifies whether the display magnification should be
   4763          * automatically updated. If this fearture is enabled the system will
   4764          * exit magnification mode or pan the viewport when a context change
   4765          * occurs. For example, on staring a new activity or rotating the screen,
   4766          * the system may zoom out so the user can see the new context he is in.
   4767          * Another example is on showing a window that is not visible in the
   4768          * magnified viewport the system may pan the viewport to make the window
   4769          * the has popped up so the user knows that the context has changed.
   4770          * Whether a screen magnification is performed is controlled by
   4771          * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED}
   4772          *
   4773          * @hide
   4774          */
   4775         public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
   4776                 "accessibility_display_magnification_auto_update";
   4777 
   4778         /**
   4779          * Setting that specifies whether timed text (captions) should be
   4780          * displayed in video content. Text display properties are controlled by
   4781          * the following settings:
   4782          * <ul>
   4783          * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
   4784          * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
   4785          * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
   4786          * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
   4787          * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
   4788          * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
   4789          * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
   4790          * </ul>
   4791          *
   4792          * @hide
   4793          */
   4794         public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
   4795                 "accessibility_captioning_enabled";
   4796 
   4797         /**
   4798          * Setting that specifies the language for captions as a locale string,
   4799          * e.g. en_US.
   4800          *
   4801          * @see java.util.Locale#toString
   4802          * @hide
   4803          */
   4804         public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
   4805                 "accessibility_captioning_locale";
   4806 
   4807         /**
   4808          * Integer property that specifies the preset style for captions, one
   4809          * of:
   4810          * <ul>
   4811          * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
   4812          * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
   4813          * </ul>
   4814          *
   4815          * @see java.util.Locale#toString
   4816          * @hide
   4817          */
   4818         public static final String ACCESSIBILITY_CAPTIONING_PRESET =
   4819                 "accessibility_captioning_preset";
   4820 
   4821         /**
   4822          * Integer property that specifes the background color for captions as a
   4823          * packed 32-bit color.
   4824          *
   4825          * @see android.graphics.Color#argb
   4826          * @hide
   4827          */
   4828         public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
   4829                 "accessibility_captioning_background_color";
   4830 
   4831         /**
   4832          * Integer property that specifes the foreground color for captions as a
   4833          * packed 32-bit color.
   4834          *
   4835          * @see android.graphics.Color#argb
   4836          * @hide
   4837          */
   4838         public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
   4839                 "accessibility_captioning_foreground_color";
   4840 
   4841         /**
   4842          * Integer property that specifes the edge type for captions, one of:
   4843          * <ul>
   4844          * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
   4845          * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
   4846          * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
   4847          * </ul>
   4848          *
   4849          * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
   4850          * @hide
   4851          */
   4852         public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
   4853                 "accessibility_captioning_edge_type";
   4854 
   4855         /**
   4856          * Integer property that specifes the edge color for captions as a
   4857          * packed 32-bit color.
   4858          *
   4859          * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
   4860          * @see android.graphics.Color#argb
   4861          * @hide
   4862          */
   4863         public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
   4864                 "accessibility_captioning_edge_color";
   4865 
   4866         /**
   4867          * Integer property that specifes the window color for captions as a
   4868          * packed 32-bit color.
   4869          *
   4870          * @see android.graphics.Color#argb
   4871          * @hide
   4872          */
   4873         public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
   4874                 "accessibility_captioning_window_color";
   4875 
   4876         /**
   4877          * String property that specifies the typeface for captions, one of:
   4878          * <ul>
   4879          * <li>DEFAULT
   4880          * <li>MONOSPACE
   4881          * <li>SANS_SERIF
   4882          * <li>SERIF
   4883          * </ul>
   4884          *
   4885          * @see android.graphics.Typeface
   4886          * @hide
   4887          */
   4888         public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
   4889                 "accessibility_captioning_typeface";
   4890 
   4891         /**
   4892          * Floating point property that specifies font scaling for captions.
   4893          *
   4894          * @hide
   4895          */
   4896         public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
   4897                 "accessibility_captioning_font_scale";
   4898 
   4899         /**
   4900          * Setting that specifies whether display color inversion is enabled.
   4901          */
   4902         public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
   4903                 "accessibility_display_inversion_enabled";
   4904 
   4905         /**
   4906          * Setting that specifies whether display color space adjustment is
   4907          * enabled.
   4908          *
   4909          * @hide
   4910          */
   4911         public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
   4912                 "accessibility_display_daltonizer_enabled";
   4913 
   4914         /**
   4915          * Integer property that specifies the type of color space adjustment to
   4916          * perform. Valid values are defined in AccessibilityManager.
   4917          *
   4918          * @hide
   4919          */
   4920         public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
   4921                 "accessibility_display_daltonizer";
   4922 
   4923         /**
   4924          * The timout for considering a press to be a long press in milliseconds.
   4925          * @hide
   4926          */
   4927         public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";
   4928 
   4929         /**
   4930          * List of the enabled print services.
   4931          * @hide
   4932          */
   4933         public static final String ENABLED_PRINT_SERVICES =
   4934             "enabled_print_services";
   4935 
   4936         /**
   4937          * List of the system print services we enabled on first boot. On
   4938          * first boot we enable all system, i.e. bundled print services,
   4939          * once, so they work out-of-the-box.
   4940          * @hide
   4941          */
   4942         public static final String ENABLED_ON_FIRST_BOOT_SYSTEM_PRINT_SERVICES =
   4943             "enabled_on_first_boot_system_print_services";
   4944 
   4945         /**
   4946          * Setting to always use the default text-to-speech settings regardless
   4947          * of the application settings.
   4948          * 1 = override application settings,
   4949          * 0 = use application settings (if specified).
   4950          *
   4951          * @deprecated  The value of this setting is no longer respected by
   4952          * the framework text to speech APIs as of the Ice Cream Sandwich release.
   4953          */
   4954         @Deprecated
   4955         public static final String TTS_USE_DEFAULTS = "tts_use_defaults";
   4956 
   4957         /**
   4958          * Default text-to-speech engine speech rate. 100 = 1x
   4959          */
   4960         public static final String TTS_DEFAULT_RATE = "tts_default_rate";
   4961 
   4962         /**
   4963          * Default text-to-speech engine pitch. 100 = 1x
   4964          */
   4965         public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";
   4966 
   4967         /**
   4968          * Default text-to-speech engine.
   4969          */
   4970         public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";
   4971 
   4972         /**
   4973          * Default text-to-speech language.
   4974          *
   4975          * @deprecated this setting is no longer in use, as of the Ice Cream
   4976          * Sandwich release. Apps should never need to read this setting directly,
   4977          * instead can query the TextToSpeech framework classes for the default
   4978          * locale. {@link TextToSpeech#getLanguage()}.
   4979          */
   4980         @Deprecated
   4981         public static final String TTS_DEFAULT_LANG = "tts_default_lang";
   4982 
   4983         /**
   4984          * Default text-to-speech country.
   4985          *
   4986          * @deprecated this setting is no longer in use, as of the Ice Cream
   4987          * Sandwich release. Apps should never need to read this setting directly,
   4988          * instead can query the TextToSpeech framework classes for the default
   4989          * locale. {@link TextToSpeech#getLanguage()}.
   4990          */
   4991         @Deprecated
   4992         public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";
   4993 
   4994         /**
   4995          * Default text-to-speech locale variant.
   4996          *
   4997          * @deprecated this setting is no longer in use, as of the Ice Cream
   4998          * Sandwich release. Apps should never need to read this setting directly,
   4999          * instead can query the TextToSpeech framework classes for the
   5000          * locale that is in use {@link TextToSpeech#getLanguage()}.
   5001          */
   5002         @Deprecated
   5003         public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";
   5004 
   5005         /**
   5006          * Stores the default tts locales on a per engine basis. Stored as
   5007          * a comma seperated list of values, each value being of the form
   5008          * {@code engine_name:locale} for example,
   5009          * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
   5010          * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
   5011          * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
   5012          * setting directly, and can query the TextToSpeech framework classes
   5013          * for the locale that is in use.
   5014          *
   5015          * @hide
   5016          */
   5017         public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";
   5018 
   5019         /**
   5020          * Space delimited list of plugin packages that are enabled.
   5021          */
   5022         public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";
   5023 
   5024         /**
   5025          * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
   5026          * instead.
   5027          */
   5028         @Deprecated
   5029         public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
   5030                 Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;
   5031 
   5032         /**
   5033          * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
   5034          * instead.
   5035          */
   5036         @Deprecated
   5037         public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
   5038                 Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;
   5039 
   5040         /**
   5041          * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
   5042          * instead.
   5043          */
   5044         @Deprecated
   5045         public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
   5046                 Global.WIFI_NUM_OPEN_NETWORKS_KEPT;
   5047 
   5048         /**
   5049          * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
   5050          * instead.
   5051          */
   5052         @Deprecated
   5053         public static final String WIFI_ON = Global.WIFI_ON;
   5054 
   5055         /**
   5056          * The acceptable packet loss percentage (range 0 - 100) before trying
   5057          * another AP on the same network.
   5058          * @deprecated This setting is not used.
   5059          */
   5060         @Deprecated
   5061         public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
   5062                 "wifi_watchdog_acceptable_packet_loss_percentage";
   5063 
   5064         /**
   5065          * The number of access points required for a network in order for the
   5066          * watchdog to monitor it.
   5067          * @deprecated This setting is not used.
   5068          */
   5069         @Deprecated
   5070         public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";
   5071 
   5072         /**
   5073          * The delay between background checks.
   5074          * @deprecated This setting is not used.
   5075          */
   5076         @Deprecated
   5077         public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
   5078                 "wifi_watchdog_background_check_delay_ms";
   5079 
   5080         /**
   5081          * Whether the Wi-Fi watchdog is enabled for background checking even
   5082          * after it thinks the user has connected to a good access point.
   5083          * @deprecated This setting is not used.
   5084          */
   5085         @Deprecated
   5086         public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
   5087                 "wifi_watchdog_background_check_enabled";
   5088 
   5089         /**
   5090          * The timeout for a background ping
   5091          * @deprecated This setting is not used.
   5092          */
   5093         @Deprecated
   5094         public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
   5095                 "wifi_watchdog_background_check_timeout_ms";
   5096 
   5097         /**
   5098          * The number of initial pings to perform that *may* be ignored if they
   5099          * fail. Again, if these fail, they will *not* be used in packet loss
   5100          * calculation. For example, one network always seemed to time out for
   5101          * the first couple pings, so this is set to 3 by default.
   5102          * @deprecated This setting is not used.
   5103          */
   5104         @Deprecated
   5105         public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
   5106             "wifi_watchdog_initial_ignored_ping_count";
   5107 
   5108         /**
   5109          * The maximum number of access points (per network) to attempt to test.
   5110          * If this number is reached, the watchdog will no longer monitor the
   5111          * initial connection state for the network. This is a safeguard for
   5112          * networks containing multiple APs whose DNS does not respond to pings.
   5113          * @deprecated This setting is not used.
   5114          */
   5115         @Deprecated
   5116         public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";
   5117 
   5118         /**
   5119          * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
   5120          */
   5121         @Deprecated
   5122         public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
   5123 
   5124         /**
   5125          * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
   5126          * @deprecated This setting is not used.
   5127          */
   5128         @Deprecated
   5129         public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";
   5130 
   5131         /**
   5132          * The number of pings to test if an access point is a good connection.
   5133          * @deprecated This setting is not used.
   5134          */
   5135         @Deprecated
   5136         public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";
   5137 
   5138         /**
   5139          * The delay between pings.
   5140          * @deprecated This setting is not used.
   5141          */
   5142         @Deprecated
   5143         public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";
   5144 
   5145         /**
   5146          * The timeout per ping.
   5147          * @deprecated This setting is not used.
   5148          */
   5149         @Deprecated
   5150         public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";
   5151 
   5152         /**
   5153          * @deprecated Use
   5154          * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
   5155          */
   5156         @Deprecated
   5157         public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;
   5158 
   5159         /**
   5160          * @deprecated Use
   5161          * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
   5162          */
   5163         @Deprecated
   5164         public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
   5165                 Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;
   5166 
   5167         /**
   5168          * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
   5169          * the receivers of the PendingIntent an opportunity to make a new network request before
   5170          * the Network satisfying the request is potentially removed.
   5171          *
   5172          * @hide
   5173          */
   5174         public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
   5175                 "connectivity_release_pending_intent_delay_ms";
   5176 
   5177         /**
   5178          * Whether background data usage is allowed.
   5179          *
   5180          * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
   5181          *             availability of background data depends on several
   5182          *             combined factors. When background data is unavailable,
   5183          *             {@link ConnectivityManager#getActiveNetworkInfo()} will
   5184          *             now appear disconnected.
   5185          */
   5186         @Deprecated
   5187         public static final String BACKGROUND_DATA = "background_data";
   5188 
   5189         /**
   5190          * Origins for which browsers should allow geolocation by default.
   5191          * The value is a space-separated list of origins.
   5192          */
   5193         public static final String ALLOWED_GEOLOCATION_ORIGINS
   5194                 = "allowed_geolocation_origins";
   5195 
   5196         /**
   5197          * The preferred TTY mode     0 = TTy Off, CDMA default
   5198          *                            1 = TTY Full
   5199          *                            2 = TTY HCO
   5200          *                            3 = TTY VCO
   5201          * @hide
   5202          */
   5203         public static final String PREFERRED_TTY_MODE =
   5204                 "preferred_tty_mode";
   5205 
   5206         /**
   5207          * Whether the enhanced voice privacy mode is enabled.
   5208          * 0 = normal voice privacy
   5209          * 1 = enhanced voice privacy
   5210          * @hide
   5211          */
   5212         public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";
   5213 
   5214         /**
   5215          * Whether the TTY mode mode is enabled.
   5216          * 0 = disabled
   5217          * 1 = enabled
   5218          * @hide
   5219          */
   5220         public static final String TTY_MODE_ENABLED = "tty_mode_enabled";
   5221 
   5222         /**
   5223          * Controls whether settings backup is enabled.
   5224          * Type: int ( 0 = disabled, 1 = enabled )
   5225          * @hide
   5226          */
   5227         public static final String BACKUP_ENABLED = "backup_enabled";
   5228 
   5229         /**
   5230          * Controls whether application data is automatically restored from backup
   5231          * at install time.
   5232          * Type: int ( 0 = disabled, 1 = enabled )
   5233          * @hide
   5234          */
   5235         public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";
   5236 
   5237         /**
   5238          * Indicates whether settings backup has been fully provisioned.
   5239          * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
   5240          * @hide
   5241          */
   5242         public static final String BACKUP_PROVISIONED = "backup_provisioned";
   5243 
   5244         /**
   5245          * Component of the transport to use for backup/restore.
   5246          * @hide
   5247          */
   5248         public static final String BACKUP_TRANSPORT = "backup_transport";
   5249 
   5250         /**
   5251          * Version for which the setup wizard was last shown.  Bumped for
   5252          * each release when there is new setup information to show.
   5253          * @hide
   5254          */
   5255         public static final String LAST_SETUP_SHOWN = "last_setup_shown";
   5256 
   5257         /**
   5258          * The interval in milliseconds after which Wi-Fi is considered idle.
   5259          * When idle, it is possible for the device to be switched from Wi-Fi to
   5260          * the mobile data network.
   5261          * @hide
   5262          * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
   5263          * instead.
   5264          */
   5265         @Deprecated
   5266         public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;
   5267 
   5268         /**
   5269          * The global search provider chosen by the user (if multiple global
   5270          * search providers are installed). This will be the provider returned
   5271          * by {@link SearchManager#getGlobalSearchActivity()} if it's still
   5272          * installed. This setting is stored as a flattened component name as
   5273          * per {@link ComponentName#flattenToString()}.
   5274          *
   5275          * @hide
   5276          */
   5277         public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
   5278                 "search_global_search_activity";
   5279 
   5280         /**
   5281          * The number of promoted sources in GlobalSearch.
   5282          * @hide
   5283          */
   5284         public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
   5285         /**
   5286          * The maximum number of suggestions returned by GlobalSearch.
   5287          * @hide
   5288          */
   5289         public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
   5290         /**
   5291          * The number of suggestions GlobalSearch will ask each non-web search source for.
   5292          * @hide
   5293          */
   5294         public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
   5295         /**
   5296          * The number of suggestions the GlobalSearch will ask the web search source for.
   5297          * @hide
   5298          */
   5299         public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
   5300                 "search_web_results_override_limit";
   5301         /**
   5302          * The number of milliseconds that GlobalSearch will wait for suggestions from
   5303          * promoted sources before continuing with all other sources.
   5304          * @hide
   5305          */
   5306         public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
   5307                 "search_promoted_source_deadline_millis";
   5308         /**
   5309          * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
   5310          * @hide
   5311          */
   5312         public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
   5313         /**
   5314          * The maximum number of milliseconds that GlobalSearch shows the previous results
   5315          * after receiving a new query.
   5316          * @hide
   5317          */
   5318         public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
   5319         /**
   5320          * The maximum age of log data used for shortcuts in GlobalSearch.
   5321          * @hide
   5322          */
   5323         public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
   5324         /**
   5325          * The maximum age of log data used for source ranking in GlobalSearch.
   5326          * @hide
   5327          */
   5328         public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
   5329                 "search_max_source_event_age_millis";
   5330         /**
   5331          * The minimum number of impressions needed to rank a source in GlobalSearch.
   5332          * @hide
   5333          */
   5334         public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
   5335                 "search_min_impressions_for_source_ranking";
   5336         /**
   5337          * The minimum number of clicks needed to rank a source in GlobalSearch.
   5338          * @hide
   5339          */
   5340         public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
   5341                 "search_min_clicks_for_source_ranking";
   5342         /**
   5343          * The maximum number of shortcuts shown by GlobalSearch.
   5344          * @hide
   5345          */
   5346         public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
   5347         /**
   5348          * The size of the core thread pool for suggestion queries in GlobalSearch.
   5349          * @hide
   5350          */
   5351         public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
   5352                 "search_query_thread_core_pool_size";
   5353         /**
   5354          * The maximum size of the thread pool for suggestion queries in GlobalSearch.
   5355          * @hide
   5356          */
   5357         public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
   5358                 "search_query_thread_max_pool_size";
   5359         /**
   5360          * The size of the core thread pool for shortcut refreshing in GlobalSearch.
   5361          * @hide
   5362          */
   5363         public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
   5364                 "search_shortcut_refresh_core_pool_size";
   5365         /**
   5366          * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
   5367          * @hide
   5368          */
   5369         public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
   5370                 "search_shortcut_refresh_max_pool_size";
   5371         /**
   5372          * The maximun time that excess threads in the GlobalSeach thread pools will
   5373          * wait before terminating.
   5374          * @hide
   5375          */
   5376         public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
   5377                 "search_thread_keepalive_seconds";
   5378         /**
   5379          * The maximum number of concurrent suggestion queries to each source.
   5380          * @hide
   5381          */
   5382         public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
   5383                 "search_per_source_concurrent_query_limit";
   5384 
   5385         /**
   5386          * Whether or not alert sounds are played on MountService events. (0 = false, 1 = true)
   5387          * @hide
   5388          */
   5389         public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";
   5390 
   5391         /**
   5392          * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
   5393          * @hide
   5394          */
   5395         public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";
   5396 
   5397         /**
   5398          * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
   5399          * @hide
   5400          */
   5401         public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";
   5402 
   5403         /**
   5404          * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
   5405          * @hide
   5406          */
   5407         public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";
   5408 
   5409         /**
   5410          * If nonzero, ANRs in invisible background processes bring up a dialog.
   5411          * Otherwise, the process will be silently killed.
   5412          * @hide
   5413          */
   5414         public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
   5415 
   5416         /**
   5417          * The {@link ComponentName} string of the service to be used as the voice recognition
   5418          * service.
   5419          *
   5420          * @hide
   5421          */
   5422         public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";
   5423 
   5424         /**
   5425          * Stores whether an user has consented to have apps verified through PAM.
   5426          * The value is boolean (1 or 0).
   5427          *
   5428          * @hide
   5429          */
   5430         public static final String PACKAGE_VERIFIER_USER_CONSENT =
   5431             "package_verifier_user_consent";
   5432 
   5433         /**
   5434          * The {@link ComponentName} string of the selected spell checker service which is
   5435          * one of the services managed by the text service manager.
   5436          *
   5437          * @hide
   5438          */
   5439         public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";
   5440 
   5441         /**
   5442          * The {@link ComponentName} string of the selected subtype of the selected spell checker
   5443          * service which is one of the services managed by the text service manager.
   5444          *
   5445          * @hide
   5446          */
   5447         public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
   5448                 "selected_spell_checker_subtype";
   5449 
   5450         /**
   5451          * The {@link ComponentName} string whether spell checker is enabled or not.
   5452          *
   5453          * @hide
   5454          */
   5455         public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";
   5456 
   5457         /**
   5458          * What happens when the user presses the Power button while in-call
   5459          * and the screen is on.<br/>
   5460          * <b>Values:</b><br/>
   5461          * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
   5462          * 2 - The Power button hangs up the current call.<br/>
   5463          *
   5464          * @hide
   5465          */
   5466         public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";
   5467 
   5468         /**
   5469          * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
   5470          * @hide
   5471          */
   5472         public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;
   5473 
   5474         /**
   5475          * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
   5476          * @hide
   5477          */
   5478         public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;
   5479 
   5480         /**
   5481          * INCALL_POWER_BUTTON_BEHAVIOR default value.
   5482          * @hide
   5483          */
   5484         public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
   5485                 INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;
   5486 
   5487         /**
   5488          * Whether the device should wake when the wake gesture sensor detects motion.
   5489          * @hide
   5490          */
   5491         public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";
   5492 
   5493         /**
   5494          * Whether the device should doze if configured.
   5495          * @hide
   5496          */
   5497         public static final String DOZE_ENABLED = "doze_enabled";
   5498 
   5499         /**
   5500          * The current night mode that has been selected by the user.  Owned
   5501          * and controlled by UiModeManagerService.  Constants are as per
   5502          * UiModeManager.
   5503          * @hide
   5504          */
   5505         public static final String UI_NIGHT_MODE = "ui_night_mode";
   5506 
   5507         /**
   5508          * Whether screensavers are enabled.
   5509          * @hide
   5510          */
   5511         public static final String SCREENSAVER_ENABLED = "screensaver_enabled";
   5512 
   5513         /**
   5514          * The user's chosen screensaver components.
   5515          *
   5516          * These will be launched by the PhoneWindowManager after a timeout when not on
   5517          * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
   5518          * @hide
   5519          */
   5520         public static final String SCREENSAVER_COMPONENTS = "screensaver_components";
   5521 
   5522         /**
   5523          * If screensavers are enabled, whether the screensaver should be automatically launched
   5524          * when the device is inserted into a (desk) dock.
   5525          * @hide
   5526          */
   5527         public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";
   5528 
   5529         /**
   5530          * If screensavers are enabled, whether the screensaver should be automatically launched
   5531          * when the screen times out when not on battery.
   5532          * @hide
   5533          */
   5534         public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";
   5535 
   5536         /**
   5537          * If screensavers are enabled, the default screensaver component.
   5538          * @hide
   5539          */
   5540         public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";
   5541 
   5542         /**
   5543          * The default NFC payment component
   5544          * @hide
   5545          */
   5546         public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";
   5547 
   5548         /**
   5549          * Whether NFC payment is handled by the foreground application or a default.
   5550          * @hide
   5551          */
   5552         public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";
   5553 
   5554         /**
   5555          * Specifies the package name currently configured to be the primary sms application
   5556          * @hide
   5557          */
   5558         public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";
   5559 
   5560         /**
   5561          * Specifies the package name currently configured to be the default dialer application
   5562          * @hide
   5563          */
   5564         public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";
   5565 
   5566         /**
   5567          * Specifies the package name currently configured to be the emergency assistance application
   5568          *
   5569          * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
   5570          *
   5571          * @hide
   5572          */
   5573         public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";
   5574 
   5575         /**
   5576          * Specifies whether the current app context on scren (assist data) will be sent to the
   5577          * assist application (active voice interaction service).
   5578          *
   5579          * @hide
   5580          */
   5581         public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";
   5582 
   5583         /**
   5584          * Specifies whether a screenshot of the screen contents will be sent to the assist
   5585          * application (active voice interaction service).
   5586          *
   5587          * @hide
   5588          */
   5589         public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";
   5590 
   5591         /**
   5592          * Names of the service components that the current user has explicitly allowed to
   5593          * see all of the user's notifications, separated by ':'.
   5594          *
   5595          * @hide
   5596          */
   5597         public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";
   5598 
   5599         /**
   5600          * Names of the packages that the current user has explicitly allowed to
   5601          * manage notification policy configuration, separated by ':'.
   5602          *
   5603          * @hide
   5604          */
   5605         public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
   5606                 "enabled_notification_policy_access_packages";
   5607 
   5608         /**
   5609          * @hide
   5610          */
   5611         public static final String ENABLED_CONDITION_PROVIDERS = "enabled_condition_providers";
   5612 
   5613         /** @hide */
   5614         public static final String BAR_SERVICE_COMPONENT = "bar_service_component";
   5615 
   5616         /** @hide */
   5617         public static final String VOLUME_CONTROLLER_SERVICE_COMPONENT
   5618                 = "volume_controller_service_component";
   5619 
   5620         /** @hide */
   5621         public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";
   5622 
   5623         /**
   5624          * This is the query URI for finding a print service to install.
   5625          *
   5626          * @hide
   5627          */
   5628         public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";
   5629 
   5630         /**
   5631          * This is the query URI for finding a NFC payment service to install.
   5632          *
   5633          * @hide
   5634          */
   5635         public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";
   5636 
   5637         /**
   5638          * If enabled, apps should try to skip any introductory hints on first launch. This might
   5639          * apply to users that are already familiar with the environment or temporary users.
   5640          * <p>
   5641          * Type : int (0 to show hints, 1 to skip showing hints)
   5642          */
   5643         public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";
   5644 
   5645         /**
   5646          * Persisted playback time after a user confirmation of an unsafe volume level.
   5647          *
   5648          * @hide
   5649          */
   5650         public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";
   5651 
   5652         /**
   5653          * This preference enables notification display on the lockscreen.
   5654          * @hide
   5655          */
   5656         public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
   5657                 "lock_screen_show_notifications";
   5658 
   5659         /**
   5660          * List of TV inputs that are currently hidden. This is a string
   5661          * containing the IDs of all hidden TV inputs. Each ID is encoded by
   5662          * {@link android.net.Uri#encode(String)} and separated by ':'.
   5663          * @hide
   5664          */
   5665         public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";
   5666 
   5667         /**
   5668          * List of custom TV input labels. This is a string containing <TV input id, custom name>
   5669          * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
   5670          * and separated by ','. Each pair is separated by ':'.
   5671          * @hide
   5672          */
   5673         public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";
   5674 
   5675         /**
   5676          * Whether automatic routing of system audio to USB audio peripheral is disabled.
   5677          * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
   5678          * and 0 means automatic routing is enabled.
   5679          *
   5680          * @hide
   5681          */
   5682         public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
   5683                 "usb_audio_automatic_routing_disabled";
   5684 
   5685         /**
   5686          * The timeout in milliseconds before the device fully goes to sleep after
   5687          * a period of inactivity.  This value sets an upper bound on how long the device
   5688          * will stay awake or dreaming without user activity.  It should generally
   5689          * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
   5690          * will sleep before it ever has a chance to dream.
   5691          * <p>
   5692          * Use -1 to disable this timeout.
   5693          * </p>
   5694          *
   5695          * @hide
   5696          */
   5697         public static final String SLEEP_TIMEOUT = "sleep_timeout";
   5698 
   5699         /**
   5700          * Controls whether double tap to wake is enabled.
   5701          * @hide
   5702          */
   5703         public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";
   5704 
   5705         /**
   5706          * The current assistant component. It could be a voice interaction service,
   5707          * or an activity that handles ACTION_ASSIST, or empty which means using the default
   5708          * handling.
   5709          *
   5710          * @hide
   5711          */
   5712         public static final String ASSISTANT = "assistant";
   5713 
   5714         /**
   5715          * This are the settings to be backed up.
   5716          *
   5717          * NOTE: Settings are backed up and restored in the order they appear
   5718          *       in this array. If you have one setting depending on another,
   5719          *       make sure that they are ordered appropriately.
   5720          *
   5721          * @hide
   5722          */
   5723         public static final String[] SETTINGS_TO_BACKUP = {
   5724             BUGREPORT_IN_POWER_MENU,                            // moved to global
   5725             ALLOW_MOCK_LOCATION,
   5726             PARENTAL_CONTROL_ENABLED,
   5727             PARENTAL_CONTROL_REDIRECT_URL,
   5728             USB_MASS_STORAGE_ENABLED,                           // moved to global
   5729             ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
   5730             ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
   5731             ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE,
   5732             ACCESSIBILITY_SCRIPT_INJECTION,
   5733             BACKUP_AUTO_RESTORE,
   5734             ENABLED_ACCESSIBILITY_SERVICES,
   5735             ENABLED_NOTIFICATION_LISTENERS,
   5736             ENABLED_INPUT_METHODS,
   5737             TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
   5738             TOUCH_EXPLORATION_ENABLED,
   5739             ACCESSIBILITY_ENABLED,
   5740             ACCESSIBILITY_SPEAK_PASSWORD,
   5741             ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
   5742             ACCESSIBILITY_CAPTIONING_ENABLED,
   5743             ACCESSIBILITY_CAPTIONING_LOCALE,
   5744             ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
   5745             ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
   5746             ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
   5747             ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
   5748             ACCESSIBILITY_CAPTIONING_TYPEFACE,
   5749             ACCESSIBILITY_CAPTIONING_FONT_SCALE,
   5750             TTS_USE_DEFAULTS,
   5751             TTS_DEFAULT_RATE,
   5752             TTS_DEFAULT_PITCH,
   5753             TTS_DEFAULT_SYNTH,
   5754             TTS_DEFAULT_LANG,
   5755             TTS_DEFAULT_COUNTRY,
   5756             TTS_ENABLED_PLUGINS,
   5757             TTS_DEFAULT_LOCALE,
   5758             WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
   5759             WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
   5760             WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
   5761             SELECTED_SPELL_CHECKER,
   5762             SELECTED_SPELL_CHECKER_SUBTYPE,
   5763             SPELL_CHECKER_ENABLED,
   5764             MOUNT_PLAY_NOTIFICATION_SND,
   5765             MOUNT_UMS_AUTOSTART,
   5766             MOUNT_UMS_PROMPT,
   5767             MOUNT_UMS_NOTIFY_ENABLED,
   5768             SLEEP_TIMEOUT,
   5769             DOUBLE_TAP_TO_WAKE,
   5770         };
   5771 
   5772         /**
   5773          * These entries are considered common between the personal and the managed profile,
   5774          * since the managed profile doesn't get to change them.
   5775          */
   5776         private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
   5777 
   5778         static {
   5779             CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
   5780             CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
   5781             CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
   5782             CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
   5783             CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
   5784             CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
   5785             CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
   5786             CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
   5787             CLONE_TO_MANAGED_PROFILE.add(LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS);
   5788             CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
   5789             CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
   5790             CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
   5791         }
   5792 
   5793         /** @hide */
   5794         public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
   5795             outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
   5796         }
   5797 
   5798         /**
   5799          * Helper method for determining if a location provider is enabled.
   5800          *
   5801          * @param cr the content resolver to use
   5802          * @param provider the location provider to query
   5803          * @return true if the provider is enabled
   5804          *
   5805          * @deprecated use {@link #LOCATION_MODE} or
   5806          *             {@link LocationManager#isProviderEnabled(String)}
   5807          */
   5808         @Deprecated
   5809         public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
   5810             return isLocationProviderEnabledForUser(cr, provider, UserHandle.myUserId());
   5811         }
   5812 
   5813         /**
   5814          * Helper method for determining if a location provider is enabled.
   5815          * @param cr the content resolver to use
   5816          * @param provider the location provider to query
   5817          * @param userId the userId to query
   5818          * @return true if the provider is enabled
   5819          * @deprecated use {@link #LOCATION_MODE} or
   5820          *             {@link LocationManager#isProviderEnabled(String)}
   5821          * @hide
   5822          */
   5823         @Deprecated
   5824         public static final boolean isLocationProviderEnabledForUser(ContentResolver cr, String provider, int userId) {
   5825             String allowedProviders = Settings.Secure.getStringForUser(cr,
   5826                     LOCATION_PROVIDERS_ALLOWED, userId);
   5827             return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
   5828         }
   5829 
   5830         /**
   5831          * Thread-safe method for enabling or disabling a single location provider.
   5832          * @param cr the content resolver to use
   5833          * @param provider the location provider to enable or disable
   5834          * @param enabled true if the provider should be enabled
   5835          * @deprecated use {@link #putInt(ContentResolver, String, int)} and {@link #LOCATION_MODE}
   5836          */
   5837         @Deprecated
   5838         public static final void setLocationProviderEnabled(ContentResolver cr,
   5839                 String provider, boolean enabled) {
   5840             setLocationProviderEnabledForUser(cr, provider, enabled, UserHandle.myUserId());
   5841         }
   5842 
   5843         /**
   5844          * Thread-safe method for enabling or disabling a single location provider.
   5845          *
   5846          * @param cr the content resolver to use
   5847          * @param provider the location provider to enable or disable
   5848          * @param enabled true if the provider should be enabled
   5849          * @param userId the userId for which to enable/disable providers
   5850          * @return true if the value was set, false on database errors
   5851          * @deprecated use {@link #putIntForUser(ContentResolver, String, int, int)} and
   5852          *             {@link #LOCATION_MODE}
   5853          * @hide
   5854          */
   5855         @Deprecated
   5856         public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
   5857                 String provider, boolean enabled, int userId) {
   5858             synchronized (mLocationSettingsLock) {
   5859                 // to ensure thread safety, we write the provider name with a '+' or '-'
   5860                 // and let the SettingsProvider handle it rather than reading and modifying
   5861                 // the list of enabled providers.
   5862                 if (enabled) {
   5863                     provider = "+" + provider;
   5864                 } else {
   5865                     provider = "-" + provider;
   5866                 }
   5867                 return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
   5868                         userId);
   5869             }
   5870         }
   5871 
   5872         /**
   5873          * Thread-safe method for setting the location mode to one of
   5874          * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
   5875          * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
   5876          *
   5877          * @param cr the content resolver to use
   5878          * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
   5879          * @param userId the userId for which to change mode
   5880          * @return true if the value was set, false on database errors
   5881          *
   5882          * @throws IllegalArgumentException if mode is not one of the supported values
   5883          */
   5884         private static final boolean setLocationModeForUser(ContentResolver cr, int mode,
   5885                 int userId) {
   5886             synchronized (mLocationSettingsLock) {
   5887                 boolean gps = false;
   5888                 boolean network = false;
   5889                 switch (mode) {
   5890                     case LOCATION_MODE_OFF:
   5891                         break;
   5892                     case LOCATION_MODE_SENSORS_ONLY:
   5893                         gps = true;
   5894                         break;
   5895                     case LOCATION_MODE_BATTERY_SAVING:
   5896                         network = true;
   5897                         break;
   5898                     case LOCATION_MODE_HIGH_ACCURACY:
   5899                         gps = true;
   5900                         network = true;
   5901                         break;
   5902                     default:
   5903                         throw new IllegalArgumentException("Invalid location mode: " + mode);
   5904                 }
   5905                 // Note it's important that we set the NLP mode first. The Google implementation
   5906                 // of NLP clears its NLP consent setting any time it receives a
   5907                 // LocationManager.PROVIDERS_CHANGED_ACTION broadcast and NLP is disabled. Also,
   5908                 // it shows an NLP consent dialog any time it receives the broadcast, NLP is
   5909                 // enabled, and the NLP consent is not set. If 1) we were to enable GPS first,
   5910                 // 2) a setup wizard has its own NLP consent UI that sets the NLP consent setting,
   5911                 // and 3) the receiver happened to complete before we enabled NLP, then the Google
   5912                 // NLP would detect the attempt to enable NLP and show a redundant NLP consent
   5913                 // dialog. Then the people who wrote the setup wizard would be sad.
   5914                 boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
   5915                         cr, LocationManager.NETWORK_PROVIDER, network, userId);
   5916                 boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
   5917                         cr, LocationManager.GPS_PROVIDER, gps, userId);
   5918                 return gpsSuccess && nlpSuccess;
   5919             }
   5920         }
   5921 
   5922         /**
   5923          * Thread-safe method for reading the location mode, returns one of
   5924          * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
   5925          * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
   5926          *
   5927          * @param cr the content resolver to use
   5928          * @param userId the userId for which to read the mode
   5929          * @return the location mode
   5930          */
   5931         private static final int getLocationModeForUser(ContentResolver cr, int userId) {
   5932             synchronized (mLocationSettingsLock) {
   5933                 boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
   5934                         cr, LocationManager.GPS_PROVIDER, userId);
   5935                 boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
   5936                         cr, LocationManager.NETWORK_PROVIDER, userId);
   5937                 if (gpsEnabled && networkEnabled) {
   5938                     return LOCATION_MODE_HIGH_ACCURACY;
   5939                 } else if (gpsEnabled) {
   5940                     return LOCATION_MODE_SENSORS_ONLY;
   5941                 } else if (networkEnabled) {
   5942                     return LOCATION_MODE_BATTERY_SAVING;
   5943                 } else {
   5944                     return LOCATION_MODE_OFF;
   5945                 }
   5946             }
   5947         }
   5948     }
   5949 
   5950     /**
   5951      * Global system settings, containing preferences that always apply identically
   5952      * to all defined users.  Applications can read these but are not allowed to write;
   5953      * like the "Secure" settings, these are for preferences that the user must
   5954      * explicitly modify through the system UI or specialized APIs for those values.
   5955      */
   5956     public static final class Global extends NameValueTable {
   5957         public static final String SYS_PROP_SETTING_VERSION = "sys.settings_global_version";
   5958 
   5959         /**
   5960          * The content:// style URL for global secure settings items.  Not public.
   5961          */
   5962         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");
   5963 
   5964         /**
   5965          * Whether users are allowed to add more users or guest from lockscreen.
   5966          * <p>
   5967          * Type: int
   5968          * @hide
   5969          */
   5970         public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";
   5971 
   5972         /**
   5973          * Setting whether the global gesture for enabling accessibility is enabled.
   5974          * If this gesture is enabled the user will be able to perfrom it to enable
   5975          * the accessibility state without visiting the settings app.
   5976          * @hide
   5977          */
   5978         public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
   5979                 "enable_accessibility_global_gesture_enabled";
   5980 
   5981         /**
   5982          * Whether Airplane Mode is on.
   5983          */
   5984         public static final String AIRPLANE_MODE_ON = "airplane_mode_on";
   5985 
   5986         /**
   5987          * Whether Theater Mode is on.
   5988          * {@hide}
   5989          */
   5990         @SystemApi
   5991         public static final String THEATER_MODE_ON = "theater_mode_on";
   5992 
   5993         /**
   5994          * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
   5995          */
   5996         public static final String RADIO_BLUETOOTH = "bluetooth";
   5997 
   5998         /**
   5999          * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
   6000          */
   6001         public static final String RADIO_WIFI = "wifi";
   6002 
   6003         /**
   6004          * {@hide}
   6005          */
   6006         public static final String RADIO_WIMAX = "wimax";
   6007         /**
   6008          * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
   6009          */
   6010         public static final String RADIO_CELL = "cell";
   6011 
   6012         /**
   6013          * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
   6014          */
   6015         public static final String RADIO_NFC = "nfc";
   6016 
   6017         /**
   6018          * A comma separated list of radios that need to be disabled when airplane mode
   6019          * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
   6020          * included in the comma separated list.
   6021          */
   6022         public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";
   6023 
   6024         /**
   6025          * A comma separated list of radios that should to be disabled when airplane mode
   6026          * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
   6027          * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
   6028          * will be turned off when entering airplane mode, but the user will be able to reenable
   6029          * Wifi in the Settings app.
   6030          *
   6031          * {@hide}
   6032          */
   6033         public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";
   6034 
   6035         /**
   6036          * The policy for deciding when Wi-Fi should go to sleep (which will in
   6037          * turn switch to using the mobile data as an Internet connection).
   6038          * <p>
   6039          * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
   6040          * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
   6041          * {@link #WIFI_SLEEP_POLICY_NEVER}.
   6042          */
   6043         public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";
   6044 
   6045         /**
   6046          * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
   6047          * policy, which is to sleep shortly after the turning off
   6048          * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
   6049          */
   6050         public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;
   6051 
   6052         /**
   6053          * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
   6054          * the device is on battery, and never go to sleep when the device is
   6055          * plugged in.
   6056          */
   6057         public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;
   6058 
   6059         /**
   6060          * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
   6061          */
   6062         public static final int WIFI_SLEEP_POLICY_NEVER = 2;
   6063 
   6064         /**
   6065          * Value to specify if the user prefers the date, time and time zone
   6066          * to be automatically fetched from the network (NITZ). 1=yes, 0=no
   6067          */
   6068         public static final String AUTO_TIME = "auto_time";
   6069 
   6070         /**
   6071          * Value to specify if the user prefers the time zone
   6072          * to be automatically fetched from the network (NITZ). 1=yes, 0=no
   6073          */
   6074         public static final String AUTO_TIME_ZONE = "auto_time_zone";
   6075 
   6076         /**
   6077          * URI for the car dock "in" event sound.
   6078          * @hide
   6079          */
   6080         public static final String CAR_DOCK_SOUND = "car_dock_sound";
   6081 
   6082         /**
   6083          * URI for the car dock "out" event sound.
   6084          * @hide
   6085          */
   6086         public static final String CAR_UNDOCK_SOUND = "car_undock_sound";
   6087 
   6088         /**
   6089          * URI for the desk dock "in" event sound.
   6090          * @hide
   6091          */
   6092         public static final String DESK_DOCK_SOUND = "desk_dock_sound";
   6093 
   6094         /**
   6095          * URI for the desk dock "out" event sound.
   6096          * @hide
   6097          */
   6098         public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";
   6099 
   6100         /**
   6101          * Whether to play a sound for dock events.
   6102          * @hide
   6103          */
   6104         public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";
   6105 
   6106         /**
   6107          * URI for the "device locked" (keyguard shown) sound.
   6108          * @hide
   6109          */
   6110         public static final String LOCK_SOUND = "lock_sound";
   6111 
   6112         /**
   6113          * URI for the "device unlocked" sound.
   6114          * @hide
   6115          */
   6116         public static final String UNLOCK_SOUND = "unlock_sound";
   6117 
   6118         /**
   6119          * URI for the "device is trusted" sound, which is played when the device enters the trusted
   6120          * state without unlocking.
   6121          * @hide
   6122          */
   6123         public static final String TRUSTED_SOUND = "trusted_sound";
   6124 
   6125         /**
   6126          * URI for the low battery sound file.
   6127          * @hide
   6128          */
   6129         public static final String LOW_BATTERY_SOUND = "low_battery_sound";
   6130 
   6131         /**
   6132          * Whether to play a sound for low-battery alerts.
   6133          * @hide
   6134          */
   6135         public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";
   6136 
   6137         /**
   6138          * URI for the "wireless charging started" sound.
   6139          * @hide
   6140          */
   6141         public static final String WIRELESS_CHARGING_STARTED_SOUND =
   6142                 "wireless_charging_started_sound";
   6143 
   6144         /**
   6145          * Whether to play a sound for charging events.
   6146          * @hide
   6147          */
   6148         public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";
   6149 
   6150         /**
   6151          * Whether we keep the device on while the device is plugged in.
   6152          * Supported values are:
   6153          * <ul>
   6154          * <li>{@code 0} to never stay on while plugged in</li>
   6155          * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
   6156          * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
   6157          * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
   6158          * </ul>
   6159          * These values can be OR-ed together.
   6160          */
   6161         public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";
   6162 
   6163         /**
   6164          * When the user has enable the option to have a "bug report" command
   6165          * in the power menu.
   6166          * @hide
   6167          */
   6168         public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";
   6169 
   6170         /**
   6171          * Whether ADB is enabled.
   6172          */
   6173         public static final String ADB_ENABLED = "adb_enabled";
   6174 
   6175         /**
   6176          * Whether Views are allowed to save their attribute data.
   6177          * @hide
   6178          */
   6179         public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";
   6180 
   6181         /**
   6182          * Whether assisted GPS should be enabled or not.
   6183          * @hide
   6184          */
   6185         public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";
   6186 
   6187         /**
   6188          * Whether bluetooth is enabled/disabled
   6189          * 0=disabled. 1=enabled.
   6190          */
   6191         public static final String BLUETOOTH_ON = "bluetooth_on";
   6192 
   6193         /**
   6194          * CDMA Cell Broadcast SMS
   6195          *                            0 = CDMA Cell Broadcast SMS disabled
   6196          *                            1 = CDMA Cell Broadcast SMS enabled
   6197          * @hide
   6198          */
   6199         public static final String CDMA_CELL_BROADCAST_SMS =
   6200                 "cdma_cell_broadcast_sms";
   6201 
   6202         /**
   6203          * The CDMA roaming mode 0 = Home Networks, CDMA default
   6204          *                       1 = Roaming on Affiliated networks
   6205          *                       2 = Roaming on any networks
   6206          * @hide
   6207          */
   6208         public static final String CDMA_ROAMING_MODE = "roaming_settings";
   6209 
   6210         /**
   6211          * The CDMA subscription mode 0 = RUIM/SIM (default)
   6212          *                                1 = NV
   6213          * @hide
   6214          */
   6215         public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";
   6216 
   6217         /** Inactivity timeout to track mobile data activity.
   6218         *
   6219         * If set to a positive integer, it indicates the inactivity timeout value in seconds to
   6220         * infer the data activity of mobile network. After a period of no activity on mobile
   6221         * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
   6222         * intent is fired to indicate a transition of network status from "active" to "idle". Any
   6223         * subsequent activity on mobile networks triggers the firing of {@code
   6224         * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
   6225         *
   6226         * Network activity refers to transmitting or receiving data on the network interfaces.
   6227         *
   6228         * Tracking is disabled if set to zero or negative value.
   6229         *
   6230         * @hide
   6231         */
   6232        public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";
   6233 
   6234        /** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
   6235         * but for Wifi network.
   6236         * @hide
   6237         */
   6238        public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";
   6239 
   6240        /**
   6241         * Whether or not data roaming is enabled. (0 = false, 1 = true)
   6242         */
   6243        public static final String DATA_ROAMING = "data_roaming";
   6244 
   6245        /**
   6246         * The value passed to a Mobile DataConnection via bringUp which defines the
   6247         * number of retries to preform when setting up the initial connection. The default
   6248         * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
   6249         * @hide
   6250         */
   6251        public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";
   6252 
   6253        /**
   6254         * Whether user has enabled development settings.
   6255         */
   6256        public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";
   6257 
   6258        /**
   6259         * Whether the device has been provisioned (0 = false, 1 = true)
   6260         */
   6261        public static final String DEVICE_PROVISIONED = "device_provisioned";
   6262 
   6263        /**
   6264         * The saved value for WindowManagerService.setForcedDisplayDensity().
   6265         * One integer in dpi.  If unset, then use the real display density.
   6266         * @hide
   6267         */
   6268        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";
   6269 
   6270        /**
   6271         * The saved value for WindowManagerService.setForcedDisplaySize().
   6272         * Two integers separated by a comma.  If unset, then use the real display size.
   6273         * @hide
   6274         */
   6275        public static final String DISPLAY_SIZE_FORCED = "display_size_forced";
   6276 
   6277        /**
   6278         * The saved value for WindowManagerService.setForcedDisplayScalingMode().
   6279         * 0 or unset if scaling is automatic, 1 if scaling is disabled.
   6280         * @hide
   6281         */
   6282        public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";
   6283 
   6284        /**
   6285         * The maximum size, in bytes, of a download that the download manager will transfer over
   6286         * a non-wifi connection.
   6287         * @hide
   6288         */
   6289        public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
   6290                "download_manager_max_bytes_over_mobile";
   6291 
   6292        /**
   6293         * The recommended maximum size, in bytes, of a download that the download manager should
   6294         * transfer over a non-wifi connection. Over this size, the use will be warned, but will
   6295         * have the option to start the download over the mobile connection anyway.
   6296         * @hide
   6297         */
   6298        public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
   6299                "download_manager_recommended_max_bytes_over_mobile";
   6300 
   6301        /**
   6302         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
   6303         */
   6304        @Deprecated
   6305        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;
   6306 
   6307        /**
   6308         * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
   6309         * sent or processed. (0 = false, 1 = true)
   6310         * @hide
   6311         */
   6312        public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";
   6313 
   6314        /**
   6315         * Whether HDMI system audio is enabled. If enabled, TV internal speaker is muted,
   6316         * and the output is redirected to AV Receiver connected via
   6317         * {@Global#HDMI_SYSTEM_AUDIO_OUTPUT}.
   6318         * @hide
   6319         */
   6320        public static final String HDMI_SYSTEM_AUDIO_ENABLED = "hdmi_system_audio_enabled";
   6321 
   6322        /**
   6323         * Whether TV will automatically turn on upon reception of the CEC command
   6324         * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
   6325         * @hide
   6326         */
   6327        public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
   6328                "hdmi_control_auto_wakeup_enabled";
   6329 
   6330        /**
   6331         * Whether TV will also turn off other CEC devices when it goes to standby mode.
   6332         * (0 = false, 1 = true)
   6333         * @hide
   6334         */
   6335        public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
   6336                "hdmi_control_auto_device_off_enabled";
   6337 
   6338        /**
   6339         * Whether to use the DHCP client from Lollipop and earlier instead of the newer Android DHCP
   6340         * client.
   6341         * (0 = false, 1 = true)
   6342         * @hide
   6343         */
   6344        public static final String LEGACY_DHCP_CLIENT = "legacy_dhcp_client";
   6345 
   6346        /**
   6347         * Whether TV will switch to MHL port when a mobile device is plugged in.
   6348         * (0 = false, 1 = true)
   6349         * @hide
   6350         */
   6351        public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";
   6352 
   6353        /**
   6354         * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
   6355         * @hide
   6356         */
   6357        public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";
   6358 
   6359        /**
   6360         * Whether mobile data connections are allowed by the user.  See
   6361         * ConnectivityManager for more info.
   6362         * @hide
   6363         */
   6364        public static final String MOBILE_DATA = "mobile_data";
   6365 
   6366        /**
   6367         * Whether the mobile data connection should remain active even when higher
   6368         * priority networks like WiFi are active, to help make network switching faster.
   6369         *
   6370         * See ConnectivityService for more info.
   6371         *
   6372         * (0 = disabled, 1 = enabled)
   6373         * @hide
   6374         */
   6375        public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
   6376 
   6377        /** {@hide} */
   6378        public static final String NETSTATS_ENABLED = "netstats_enabled";
   6379        /** {@hide} */
   6380        public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
   6381        /** {@hide} */
   6382        public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
   6383        /** {@hide} */
   6384        public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
   6385        /** {@hide} */
   6386        public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
   6387 
   6388        /** {@hide} */
   6389        public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
   6390        /** {@hide} */
   6391        public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
   6392        /** {@hide} */
   6393        public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
   6394        /** {@hide} */
   6395        public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";
   6396 
   6397        /** {@hide} */
   6398        public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
   6399        /** {@hide} */
   6400        public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
   6401        /** {@hide} */
   6402        public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
   6403        /** {@hide} */
   6404        public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";
   6405 
   6406        /** {@hide} */
   6407        public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
   6408        /** {@hide} */
   6409        public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
   6410        /** {@hide} */
   6411        public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
   6412        /** {@hide} */
   6413        public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";
   6414 
   6415        /**
   6416         * User preference for which network(s) should be used. Only the
   6417         * connectivity service should touch this.
   6418         */
   6419        public static final String NETWORK_PREFERENCE = "network_preference";
   6420 
   6421        /**
   6422         * Which package name to use for network scoring. If null, or if the package is not a valid
   6423         * scorer app, external network scores will neither be requested nor accepted.
   6424         * @hide
   6425         */
   6426        public static final String NETWORK_SCORER_APP = "network_scorer_app";
   6427 
   6428        /**
   6429         * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
   6430         * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
   6431         * exceeded.
   6432         * @hide
   6433         */
   6434        public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";
   6435 
   6436        /**
   6437         * The length of time in milli-seconds that automatic small adjustments to
   6438         * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
   6439         * @hide
   6440         */
   6441        public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";
   6442 
   6443        /** Preferred NTP server. {@hide} */
   6444        public static final String NTP_SERVER = "ntp_server";
   6445        /** Timeout in milliseconds to wait for NTP server. {@hide} */
   6446        public static final String NTP_TIMEOUT = "ntp_timeout";
   6447 
   6448        /** {@hide} */
   6449        public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";
   6450 
   6451        /**
   6452         * Whether the package manager should send package verification broadcasts for verifiers to
   6453         * review apps prior to installation.
   6454         * 1 = request apps to be verified prior to installation, if a verifier exists.
   6455         * 0 = do not verify apps before installation
   6456         * @hide
   6457         */
   6458        public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";
   6459 
   6460        /** Timeout for package verification.
   6461         * @hide */
   6462        public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";
   6463 
   6464        /** Default response code for package verification.
   6465         * @hide */
   6466        public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";
   6467 
   6468        /**
   6469         * Show package verification setting in the Settings app.
   6470         * 1 = show (default)
   6471         * 0 = hide
   6472         * @hide
   6473         */
   6474        public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";
   6475 
   6476        /**
   6477         * Run package verification on apps installed through ADB/ADT/USB
   6478         * 1 = perform package verification on ADB installs (default)
   6479         * 0 = bypass package verification on ADB installs
   6480         * @hide
   6481         */
   6482        public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";
   6483 
   6484        /**
   6485         * Time since last fstrim (milliseconds) after which we force one to happen
   6486         * during device startup.  If unset, the default is 3 days.
   6487         * @hide
   6488         */
   6489        public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";
   6490 
   6491        /**
   6492         * The interval in milliseconds at which to check packet counts on the
   6493         * mobile data interface when screen is on, to detect possible data
   6494         * connection problems.
   6495         * @hide
   6496         */
   6497        public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
   6498                "pdp_watchdog_poll_interval_ms";
   6499 
   6500        /**
   6501         * The interval in milliseconds at which to check packet counts on the
   6502         * mobile data interface when screen is off, to detect possible data
   6503         * connection problems.
   6504         * @hide
   6505         */
   6506        public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
   6507                "pdp_watchdog_long_poll_interval_ms";
   6508 
   6509        /**
   6510         * The interval in milliseconds at which to check packet counts on the
   6511         * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
   6512         * outgoing packets has been reached without incoming packets.
   6513         * @hide
   6514         */
   6515        public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
   6516                "pdp_watchdog_error_poll_interval_ms";
   6517 
   6518        /**
   6519         * The number of outgoing packets sent without seeing an incoming packet
   6520         * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
   6521         * device is logged to the event log
   6522         * @hide
   6523         */
   6524        public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
   6525                "pdp_watchdog_trigger_packet_count";
   6526 
   6527        /**
   6528         * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
   6529         * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
   6530         * attempting data connection recovery.
   6531         * @hide
   6532         */
   6533        public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
   6534                "pdp_watchdog_error_poll_count";
   6535 
   6536        /**
   6537         * The number of failed PDP reset attempts before moving to something more
   6538         * drastic: re-registering to the network.
   6539         * @hide
   6540         */
   6541        public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
   6542                "pdp_watchdog_max_pdp_reset_fail_count";
   6543 
   6544        /**
   6545         * A positive value indicates how often the SamplingProfiler
   6546         * should take snapshots. Zero value means SamplingProfiler
   6547         * is disabled.
   6548         *
   6549         * @hide
   6550         */
   6551        public static final String SAMPLING_PROFILER_MS = "sampling_profiler_ms";
   6552 
   6553        /**
   6554         * URL to open browser on to allow user to manage a prepay account
   6555         * @hide
   6556         */
   6557        public static final String SETUP_PREPAID_DATA_SERVICE_URL =
   6558                "setup_prepaid_data_service_url";
   6559 
   6560        /**
   6561         * URL to attempt a GET on to see if this is a prepay device
   6562         * @hide
   6563         */
   6564        public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
   6565                "setup_prepaid_detection_target_url";
   6566 
   6567        /**
   6568         * Host to check for a redirect to after an attempt to GET
   6569         * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
   6570         * this is a prepaid device with zero balance.)
   6571         * @hide
   6572         */
   6573        public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
   6574                "setup_prepaid_detection_redir_host";
   6575 
   6576        /**
   6577         * The interval in milliseconds at which to check the number of SMS sent out without asking
   6578         * for use permit, to limit the un-authorized SMS usage.
   6579         *
   6580         * @hide
   6581         */
   6582        public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
   6583                "sms_outgoing_check_interval_ms";
   6584 
   6585        /**
   6586         * The number of outgoing SMS sent without asking for user permit (of {@link
   6587         * #SMS_OUTGOING_CHECK_INTERVAL_MS}
   6588         *
   6589         * @hide
   6590         */
   6591        public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
   6592                "sms_outgoing_check_max_count";
   6593 
   6594        /**
   6595         * Used to disable SMS short code confirmation - defaults to true.
   6596         * True indcates we will do the check, etc.  Set to false to disable.
   6597         * @see com.android.internal.telephony.SmsUsageMonitor
   6598         * @hide
   6599         */
   6600        public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";
   6601 
   6602         /**
   6603          * Used to select which country we use to determine premium sms codes.
   6604          * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
   6605          * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
   6606          * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
   6607          * @hide
   6608          */
   6609         public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";
   6610 
   6611        /**
   6612         * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
   6613         * @hide
   6614         */
   6615        public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";
   6616 
   6617        /**
   6618         * Used to disable Tethering on a device - defaults to true
   6619         * @hide
   6620         */
   6621        public static final String TETHER_SUPPORTED = "tether_supported";
   6622 
   6623        /**
   6624         * Used to require DUN APN on the device or not - defaults to a build config value
   6625         * which defaults to false
   6626         * @hide
   6627         */
   6628        public static final String TETHER_DUN_REQUIRED = "tether_dun_required";
   6629 
   6630        /**
   6631         * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
   6632         * corresponding build config values are set it will override the APN DB
   6633         * values.
   6634         * Consists of a comma seperated list of strings:
   6635         * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
   6636         * note that empty fields can be ommitted: "name,apn,,,,,,,,,310,260,,DUN"
   6637         * @hide
   6638         */
   6639        public static final String TETHER_DUN_APN = "tether_dun_apn";
   6640 
   6641        /**
   6642         * USB Mass Storage Enabled
   6643         */
   6644        public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";
   6645 
   6646        /**
   6647         * If this setting is set (to anything), then all references
   6648         * to Gmail on the device must change to Google Mail.
   6649         */
   6650        public static final String USE_GOOGLE_MAIL = "use_google_mail";
   6651 
   6652         /**
   6653          * Webview Data reduction proxy key.
   6654          * @hide
   6655          */
   6656         public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
   6657                 "webview_data_reduction_proxy_key";
   6658 
   6659        /**
   6660         * Whether Wifi display is enabled/disabled
   6661         * 0=disabled. 1=enabled.
   6662         * @hide
   6663         */
   6664        public static final String WIFI_DISPLAY_ON = "wifi_display_on";
   6665 
   6666        /**
   6667         * Whether Wifi display certification mode is enabled/disabled
   6668         * 0=disabled. 1=enabled.
   6669         * @hide
   6670         */
   6671        public static final String WIFI_DISPLAY_CERTIFICATION_ON =
   6672                "wifi_display_certification_on";
   6673 
   6674        /**
   6675         * WPS Configuration method used by Wifi display, this setting only
   6676         * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
   6677         *
   6678         * Possible values are:
   6679         *
   6680         * WpsInfo.INVALID: use default WPS method chosen by framework
   6681         * WpsInfo.PBC    : use Push button
   6682         * WpsInfo.KEYPAD : use Keypad
   6683         * WpsInfo.DISPLAY: use Display
   6684         * @hide
   6685         */
   6686        public static final String WIFI_DISPLAY_WPS_CONFIG =
   6687            "wifi_display_wps_config";
   6688 
   6689        /**
   6690         * Whether to notify the user of open networks.
   6691         * <p>
   6692         * If not connected and the scan results have an open network, we will
   6693         * put this notification up. If we attempt to connect to a network or
   6694         * the open network(s) disappear, we remove the notification. When we
   6695         * show the notification, we will not show it again for
   6696         * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
   6697         */
   6698        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
   6699                "wifi_networks_available_notification_on";
   6700        /**
   6701         * {@hide}
   6702         */
   6703        public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
   6704                "wimax_networks_available_notification_on";
   6705 
   6706        /**
   6707         * Delay (in seconds) before repeating the Wi-Fi networks available notification.
   6708         * Connecting to a network will reset the timer.
   6709         */
   6710        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
   6711                "wifi_networks_available_repeat_delay";
   6712 
   6713        /**
   6714         * 802.11 country code in ISO 3166 format
   6715         * @hide
   6716         */
   6717        public static final String WIFI_COUNTRY_CODE = "wifi_country_code";
   6718 
   6719        /**
   6720         * The interval in milliseconds to issue wake up scans when wifi needs
   6721         * to connect. This is necessary to connect to an access point when
   6722         * device is on the move and the screen is off.
   6723         * @hide
   6724         */
   6725        public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
   6726                "wifi_framework_scan_interval_ms";
   6727 
   6728        /**
   6729         * The interval in milliseconds after which Wi-Fi is considered idle.
   6730         * When idle, it is possible for the device to be switched from Wi-Fi to
   6731         * the mobile data network.
   6732         * @hide
   6733         */
   6734        public static final String WIFI_IDLE_MS = "wifi_idle_ms";
   6735 
   6736        /**
   6737         * When the number of open networks exceeds this number, the
   6738         * least-recently-used excess networks will be removed.
   6739         */
   6740        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";
   6741 
   6742        /**
   6743         * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
   6744         */
   6745        public static final String WIFI_ON = "wifi_on";
   6746 
   6747        /**
   6748         * Setting to allow scans to be enabled even wifi is turned off for connectivity.
   6749         * @hide
   6750         */
   6751        public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
   6752                 "wifi_scan_always_enabled";
   6753 
   6754        /**
   6755         * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
   6756         * connectivity.
   6757         * @hide
   6758         */
   6759        public static final String BLE_SCAN_ALWAYS_AVAILABLE =
   6760                "ble_scan_always_enabled";
   6761 
   6762        /**
   6763         * Used to save the Wifi_ON state prior to tethering.
   6764         * This state will be checked to restore Wifi after
   6765         * the user turns off tethering.
   6766         *
   6767         * @hide
   6768         */
   6769        public static final String WIFI_SAVED_STATE = "wifi_saved_state";
   6770 
   6771        /**
   6772         * The interval in milliseconds to scan as used by the wifi supplicant
   6773         * @hide
   6774         */
   6775        public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
   6776                "wifi_supplicant_scan_interval_ms";
   6777 
   6778         /**
   6779          * whether frameworks handles wifi auto-join
   6780          * @hide
   6781          */
   6782        public static final String WIFI_ENHANCED_AUTO_JOIN =
   6783                 "wifi_enhanced_auto_join";
   6784 
   6785         /**
   6786          * whether settings show RSSI
   6787          * @hide
   6788          */
   6789         public static final String WIFI_NETWORK_SHOW_RSSI =
   6790                 "wifi_network_show_rssi";
   6791 
   6792         /**
   6793         * The interval in milliseconds to scan at supplicant when p2p is connected
   6794         * @hide
   6795         */
   6796        public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
   6797                "wifi_scan_interval_p2p_connected_ms";
   6798 
   6799        /**
   6800         * Whether the Wi-Fi watchdog is enabled.
   6801         */
   6802        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";
   6803 
   6804        /**
   6805         * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
   6806         * the setting needs to be set to 0 to disable it.
   6807         * @hide
   6808         */
   6809        public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
   6810                "wifi_watchdog_poor_network_test_enabled";
   6811 
   6812        /**
   6813         * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
   6814         * needs to be set to 0 to disable it.
   6815         * @hide
   6816         */
   6817        public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
   6818                "wifi_suspend_optimizations_enabled";
   6819 
   6820        /**
   6821         * The maximum number of times we will retry a connection to an access
   6822         * point for which we have failed in acquiring an IP address from DHCP.
   6823         * A value of N means that we will make N+1 connection attempts in all.
   6824         */
   6825        public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";
   6826 
   6827        /**
   6828         * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
   6829         * data connectivity to be established after a disconnect from Wi-Fi.
   6830         */
   6831        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
   6832            "wifi_mobile_data_transition_wakelock_timeout_ms";
   6833 
   6834        /**
   6835         * This setting controls whether WiFi configurations created by a Device Owner app
   6836         * should be locked down (that is, be editable or removable only by the Device Owner App,
   6837         * not even by Settings app).
   6838         * This setting takes integer values. Non-zero values mean DO created configurations
   6839         * are locked down. Value of zero means they are not. Default value in the absence of
   6840         * actual value to this setting is 0.
   6841         */
   6842        public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
   6843                "wifi_device_owner_configs_lockdown";
   6844 
   6845        /**
   6846         * The operational wifi frequency band
   6847         * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
   6848         * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
   6849         * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
   6850         *
   6851         * @hide
   6852         */
   6853        public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";
   6854 
   6855        /**
   6856         * The Wi-Fi peer-to-peer device name
   6857         * @hide
   6858         */
   6859        public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";
   6860 
   6861        /**
   6862         * The min time between wifi disable and wifi enable
   6863         * @hide
   6864         */
   6865        public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";
   6866 
   6867        /**
   6868         * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
   6869         * from an ephemeral network if there is no BSSID for that network with a non-null score that
   6870         * has been seen in this time period.
   6871         *
   6872         * If this is less than or equal to zero, we use a more conservative behavior and only check
   6873         * for a non-null score from the currently connected or target BSSID.
   6874         * @hide
   6875         */
   6876        public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
   6877                "wifi_ephemeral_out_of_range_timeout_ms";
   6878 
   6879        /**
   6880         * The number of milliseconds to delay when checking for data stalls during
   6881         * non-aggressive detection. (screen is turned off.)
   6882         * @hide
   6883         */
   6884        public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
   6885                "data_stall_alarm_non_aggressive_delay_in_ms";
   6886 
   6887        /**
   6888         * The number of milliseconds to delay when checking for data stalls during
   6889         * aggressive detection. (screen on or suspected data stall)
   6890         * @hide
   6891         */
   6892        public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
   6893                "data_stall_alarm_aggressive_delay_in_ms";
   6894 
   6895        /**
   6896         * The number of milliseconds to allow the provisioning apn to remain active
   6897         * @hide
   6898         */
   6899        public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
   6900                "provisioning_apn_alarm_delay_in_ms";
   6901 
   6902        /**
   6903         * The interval in milliseconds at which to check gprs registration
   6904         * after the first registration mismatch of gprs and voice service,
   6905         * to detect possible data network registration problems.
   6906         *
   6907         * @hide
   6908         */
   6909        public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
   6910                "gprs_register_check_period_ms";
   6911 
   6912        /**
   6913         * Nonzero causes Log.wtf() to crash.
   6914         * @hide
   6915         */
   6916        public static final String WTF_IS_FATAL = "wtf_is_fatal";
   6917 
   6918        /**
   6919         * Ringer mode. This is used internally, changing this value will not
   6920         * change the ringer mode. See AudioManager.
   6921         */
   6922        public static final String MODE_RINGER = "mode_ringer";
   6923 
   6924        /**
   6925         * Overlay display devices setting.
   6926         * The associated value is a specially formatted string that describes the
   6927         * size and density of simulated secondary display devices.
   6928         * <p>
   6929         * Format: {width}x{height}/{dpi};...
   6930         * </p><p>
   6931         * Example:
   6932         * <ul>
   6933         * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
   6934         * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
   6935         * at 1080p and the second at 720p.</li>
   6936         * <li>If the value is empty, then no overlay display devices are created.</li>
   6937         * </ul></p>
   6938         *
   6939         * @hide
   6940         */
   6941        public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";
   6942 
   6943         /**
   6944          * Threshold values for the duration and level of a discharge cycle,
   6945          * under which we log discharge cycle info.
   6946          *
   6947          * @hide
   6948          */
   6949         public static final String
   6950                 BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";
   6951 
   6952         /** @hide */
   6953         public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";
   6954 
   6955         /**
   6956          * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
   6957          * intents on application crashes and ANRs. If this is disabled, the
   6958          * crash/ANR dialog will never display the "Report" button.
   6959          * <p>
   6960          * Type: int (0 = disallow, 1 = allow)
   6961          *
   6962          * @hide
   6963          */
   6964         public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";
   6965 
   6966         /**
   6967          * Maximum age of entries kept by {@link DropBoxManager}.
   6968          *
   6969          * @hide
   6970          */
   6971         public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";
   6972 
   6973         /**
   6974          * Maximum number of entry files which {@link DropBoxManager} will keep
   6975          * around.
   6976          *
   6977          * @hide
   6978          */
   6979         public static final String DROPBOX_MAX_FILES = "dropbox_max_files";
   6980 
   6981         /**
   6982          * Maximum amount of disk space used by {@link DropBoxManager} no matter
   6983          * what.
   6984          *
   6985          * @hide
   6986          */
   6987         public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";
   6988 
   6989         /**
   6990          * Percent of free disk (excluding reserve) which {@link DropBoxManager}
   6991          * will use.
   6992          *
   6993          * @hide
   6994          */
   6995         public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";
   6996 
   6997         /**
   6998          * Percent of total disk which {@link DropBoxManager} will never dip
   6999          * into.
   7000          *
   7001          * @hide
   7002          */
   7003         public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";
   7004 
   7005         /**
   7006          * Prefix for per-tag dropbox disable/enable settings.
   7007          *
   7008          * @hide
   7009          */
   7010         public static final String DROPBOX_TAG_PREFIX = "dropbox:";
   7011 
   7012         /**
   7013          * Lines of logcat to include with system crash/ANR/etc. reports, as a
   7014          * prefix of the dropbox tag of the report type. For example,
   7015          * "logcat_for_system_server_anr" controls the lines of logcat captured
   7016          * with system server ANR reports. 0 to disable.
   7017          *
   7018          * @hide
   7019          */
   7020         public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";
   7021 
   7022         /**
   7023          * The interval in minutes after which the amount of free storage left
   7024          * on the device is logged to the event log
   7025          *
   7026          * @hide
   7027          */
   7028         public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";
   7029 
   7030         /**
   7031          * Threshold for the amount of change in disk free space required to
   7032          * report the amount of free space. Used to prevent spamming the logs
   7033          * when the disk free space isn't changing frequently.
   7034          *
   7035          * @hide
   7036          */
   7037         public static final String
   7038                 DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";
   7039 
   7040         /**
   7041          * Minimum percentage of free storage on the device that is used to
   7042          * determine if the device is running low on storage. The default is 10.
   7043          * <p>
   7044          * Say this value is set to 10, the device is considered running low on
   7045          * storage if 90% or more of the device storage is filled up.
   7046          *
   7047          * @hide
   7048          */
   7049         public static final String
   7050                 SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";
   7051 
   7052         /**
   7053          * Maximum byte size of the low storage threshold. This is to ensure
   7054          * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
   7055          * overly large threshold for large storage devices. Currently this must
   7056          * be less than 2GB. This default is 500MB.
   7057          *
   7058          * @hide
   7059          */
   7060         public static final String
   7061                 SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";
   7062 
   7063         /**
   7064          * Minimum bytes of free storage on the device before the data partition
   7065          * is considered full. By default, 1 MB is reserved to avoid system-wide
   7066          * SQLite disk full exceptions.
   7067          *
   7068          * @hide
   7069          */
   7070         public static final String
   7071                 SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";
   7072 
   7073         /**
   7074          * The maximum reconnect delay for short network outages or when the
   7075          * network is suspended due to phone use.
   7076          *
   7077          * @hide
   7078          */
   7079         public static final String
   7080                 SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";
   7081 
   7082         /**
   7083          * The number of milliseconds to delay before sending out
   7084          * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
   7085          *
   7086          * @hide
   7087          */
   7088         public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";
   7089 
   7090 
   7091         /**
   7092          * Network sampling interval, in seconds. We'll generate link information
   7093          * about bytes/packets sent and error rates based on data sampled in this interval
   7094          *
   7095          * @hide
   7096          */
   7097 
   7098         public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
   7099                 "connectivity_sampling_interval_in_seconds";
   7100 
   7101         /**
   7102          * The series of successively longer delays used in retrying to download PAC file.
   7103          * Last delay is used between successful PAC downloads.
   7104          *
   7105          * @hide
   7106          */
   7107         public static final String PAC_CHANGE_DELAY = "pac_change_delay";
   7108 
   7109         /**
   7110          * Setting to turn off captive portal detection. Feature is enabled by
   7111          * default and the setting needs to be set to 0 to disable it.
   7112          *
   7113          * @hide
   7114          */
   7115         public static final String
   7116                 CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";
   7117 
   7118         /**
   7119          * The server used for captive portal detection upon a new conection. A
   7120          * 204 response code from the server is used for validation.
   7121          *
   7122          * @hide
   7123          */
   7124         public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";
   7125 
   7126         /**
   7127          * Whether network service discovery is enabled.
   7128          *
   7129          * @hide
   7130          */
   7131         public static final String NSD_ON = "nsd_on";
   7132 
   7133         /**
   7134          * Let user pick default install location.
   7135          *
   7136          * @hide
   7137          */
   7138         public static final String SET_INSTALL_LOCATION = "set_install_location";
   7139 
   7140         /**
   7141          * Default install location value.
   7142          * 0 = auto, let system decide
   7143          * 1 = internal
   7144          * 2 = sdcard
   7145          * @hide
   7146          */
   7147         public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";
   7148 
   7149         /**
   7150          * ms during which to consume extra events related to Inet connection
   7151          * condition after a transtion to fully-connected
   7152          *
   7153          * @hide
   7154          */
   7155         public static final String
   7156                 INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";
   7157 
   7158         /**
   7159          * ms during which to consume extra events related to Inet connection
   7160          * condtion after a transtion to partly-connected
   7161          *
   7162          * @hide
   7163          */
   7164         public static final String
   7165                 INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";
   7166 
   7167         /** {@hide} */
   7168         public static final String
   7169                 READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";
   7170 
   7171         /**
   7172          * Host name and port for global http proxy. Uses ':' seperator for
   7173          * between host and port.
   7174          */
   7175         public static final String HTTP_PROXY = "http_proxy";
   7176 
   7177         /**
   7178          * Host name for global http proxy. Set via ConnectivityManager.
   7179          *
   7180          * @hide
   7181          */
   7182         public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";
   7183 
   7184         /**
   7185          * Integer host port for global http proxy. Set via ConnectivityManager.
   7186          *
   7187          * @hide
   7188          */
   7189         public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";
   7190 
   7191         /**
   7192          * Exclusion list for global proxy. This string contains a list of
   7193          * comma-separated domains where the global proxy does not apply.
   7194          * Domains should be listed in a comma- separated list. Example of
   7195          * acceptable formats: ".domain1.com,my.domain2.com" Use
   7196          * ConnectivityManager to set/get.
   7197          *
   7198          * @hide
   7199          */
   7200         public static final String
   7201                 GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";
   7202 
   7203         /**
   7204          * The location PAC File for the proxy.
   7205          * @hide
   7206          */
   7207         public static final String
   7208                 GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";
   7209 
   7210         /**
   7211          * Enables the UI setting to allow the user to specify the global HTTP
   7212          * proxy and associated exclusion list.
   7213          *
   7214          * @hide
   7215          */
   7216         public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";
   7217 
   7218         /**
   7219          * Setting for default DNS in case nobody suggests one
   7220          *
   7221          * @hide
   7222          */
   7223         public static final String DEFAULT_DNS_SERVER = "default_dns_server";
   7224 
   7225         /** {@hide} */
   7226         public static final String
   7227                 BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
   7228         /** {@hide} */
   7229         public static final String
   7230                 BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
   7231         /** {@hide} */
   7232         public static final String
   7233                 BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
   7234         /** {@hide} */
   7235         public static final String
   7236                 BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
   7237         /** {@hide} */
   7238         public static final String
   7239                 BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
   7240 
   7241         /**
   7242          * Device Idle (Doze) specific settings.
   7243          * This is encoded as a key=value list, separated by commas. Ex:
   7244          *
   7245          * "inactive_timeout=60000,sensing_timeout=400000"
   7246          *
   7247          * The following keys are supported:
   7248          *
   7249          * <pre>
   7250          * inactive_to                      (long)
   7251          * sensing_to                       (long)
   7252          * motion_inactive_to               (long)
   7253          * idle_after_inactive_to           (long)
   7254          * idle_pending_to                  (long)
   7255          * max_idle_pending_to              (long)
   7256          * idle_pending_factor              (float)
   7257          * idle_to                          (long)
   7258          * max_idle_to                      (long)
   7259          * idle_factor                      (float)
   7260          * min_time_to_alarm                (long)
   7261          * max_temp_app_whitelist_duration  (long)
   7262          * </pre>
   7263          *
   7264          * <p>
   7265          * Type: string
   7266          * @hide
   7267          * @see com.android.server.DeviceIdleController.Constants
   7268          */
   7269         public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";
   7270 
   7271         /**
   7272          * App standby (app idle) specific settings.
   7273          * This is encoded as a key=value list, separated by commas. Ex:
   7274          *
   7275          * "idle_duration=5000,parole_interval=4500"
   7276          *
   7277          * The following keys are supported:
   7278          *
   7279          * <pre>
   7280          * idle_duration        (long)
   7281          * wallclock_threshold  (long)
   7282          * parole_interval      (long)
   7283          * parole_duration      (long)
   7284          * </pre>
   7285          *
   7286          * <p>
   7287          * Type: string
   7288          * @hide
   7289          * @see com.android.server.usage.UsageStatsService.SettingsObserver
   7290          */
   7291         public static final String APP_IDLE_CONSTANTS = "app_idle_constants";
   7292 
   7293         /**
   7294          * Alarm manager specific settings.
   7295          * This is encoded as a key=value list, separated by commas. Ex:
   7296          *
   7297          * "min_futurity=5000,allow_while_idle_short_time=4500"
   7298          *
   7299          * The following keys are supported:
   7300          *
   7301          * <pre>
   7302          * min_futurity                         (long)
   7303          * min_interval                         (long)
   7304          * allow_while_idle_short_time          (long)
   7305          * allow_while_idle_long_time           (long)
   7306          * allow_while_idle_whitelist_duration  (long)
   7307          * </pre>
   7308          *
   7309          * <p>
   7310          * Type: string
   7311          * @hide
   7312          * @see com.android.server.AlarmManagerService.Constants
   7313          */
   7314         public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";
   7315 
   7316         /**
   7317          * Get the key that retrieves a bluetooth headset's priority.
   7318          * @hide
   7319          */
   7320         public static final String getBluetoothHeadsetPriorityKey(String address) {
   7321             return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
   7322         }
   7323 
   7324         /**
   7325          * Get the key that retrieves a bluetooth a2dp sink's priority.
   7326          * @hide
   7327          */
   7328         public static final String getBluetoothA2dpSinkPriorityKey(String address) {
   7329             return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
   7330         }
   7331 
   7332         /**
   7333          * Get the key that retrieves a bluetooth Input Device's priority.
   7334          * @hide
   7335          */
   7336         public static final String getBluetoothInputDevicePriorityKey(String address) {
   7337             return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
   7338         }
   7339 
   7340         /**
   7341          * Get the key that retrieves a bluetooth map priority.
   7342          * @hide
   7343          */
   7344         public static final String getBluetoothMapPriorityKey(String address) {
   7345             return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
   7346         }
   7347 
   7348         /**
   7349          * Get the key that retrieves a bluetooth map priority.
   7350          * @hide
   7351          */
   7352         public static final String getBluetoothSapPriorityKey(String address) {
   7353             return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
   7354         }
   7355 
   7356         /**
   7357          * Scaling factor for normal window animations. Setting to 0 will
   7358          * disable window animations.
   7359          */
   7360         public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";
   7361 
   7362         /**
   7363          * Scaling factor for activity transition animations. Setting to 0 will
   7364          * disable window animations.
   7365          */
   7366         public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";
   7367 
   7368         /**
   7369          * Scaling factor for Animator-based animations. This affects both the
   7370          * start delay and duration of all such animations. Setting to 0 will
   7371          * cause animations to end immediately. The default value is 1.
   7372          */
   7373         public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";
   7374 
   7375         /**
   7376          * Scaling factor for normal window animations. Setting to 0 will
   7377          * disable window animations.
   7378          *
   7379          * @hide
   7380          */
   7381         public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";
   7382 
   7383         /**
   7384          * If 0, the compatibility mode is off for all applications.
   7385          * If 1, older applications run under compatibility mode.
   7386          * TODO: remove this settings before code freeze (bug/1907571)
   7387          * @hide
   7388          */
   7389         public static final String COMPATIBILITY_MODE = "compatibility_mode";
   7390 
   7391         /**
   7392          * CDMA only settings
   7393          * Emergency Tone  0 = Off
   7394          *                 1 = Alert
   7395          *                 2 = Vibrate
   7396          * @hide
   7397          */
   7398         public static final String EMERGENCY_TONE = "emergency_tone";
   7399 
   7400         /**
   7401          * CDMA only settings
   7402          * Whether the auto retry is enabled. The value is
   7403          * boolean (1 or 0).
   7404          * @hide
   7405          */
   7406         public static final String CALL_AUTO_RETRY = "call_auto_retry";
   7407 
   7408         /**
   7409          * See RIL_PreferredNetworkType in ril.h
   7410          * @hide
   7411          */
   7412         public static final String PREFERRED_NETWORK_MODE =
   7413                 "preferred_network_mode";
   7414 
   7415         /**
   7416          * Name of an application package to be debugged.
   7417          */
   7418         public static final String DEBUG_APP = "debug_app";
   7419 
   7420         /**
   7421          * If 1, when launching DEBUG_APP it will wait for the debugger before
   7422          * starting user code.  If 0, it will run normally.
   7423          */
   7424         public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";
   7425 
   7426         /**
   7427          * Control whether the process CPU usage meter should be shown.
   7428          */
   7429         public static final String SHOW_PROCESSES = "show_processes";
   7430 
   7431         /**
   7432          * If 1 low power mode is enabled.
   7433          * @hide
   7434          */
   7435         public static final String LOW_POWER_MODE = "low_power";
   7436 
   7437         /**
   7438          * Battery level [1-99] at which low power mode automatically turns on.
   7439          * If 0, it will not automatically turn on.
   7440          * @hide
   7441          */
   7442         public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";
   7443 
   7444          /**
   7445          * If 1, the activity manager will aggressively finish activities and
   7446          * processes as soon as they are no longer needed.  If 0, the normal
   7447          * extended lifetime is used.
   7448          */
   7449         public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";
   7450 
   7451         /**
   7452          * Use Dock audio output for media:
   7453          *      0 = disabled
   7454          *      1 = enabled
   7455          * @hide
   7456          */
   7457         public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
   7458 
   7459         /**
   7460          * Persisted safe headphone volume management state by AudioService
   7461          * @hide
   7462          */
   7463         public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";
   7464 
   7465         /**
   7466          * URL for tzinfo (time zone) updates
   7467          * @hide
   7468          */
   7469         public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";
   7470 
   7471         /**
   7472          * URL for tzinfo (time zone) update metadata
   7473          * @hide
   7474          */
   7475         public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";
   7476 
   7477         /**
   7478          * URL for selinux (mandatory access control) updates
   7479          * @hide
   7480          */
   7481         public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";
   7482 
   7483         /**
   7484          * URL for selinux (mandatory access control) update metadata
   7485          * @hide
   7486          */
   7487         public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";
   7488 
   7489         /**
   7490          * URL for sms short code updates
   7491          * @hide
   7492          */
   7493         public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
   7494                 "sms_short_codes_content_url";
   7495 
   7496         /**
   7497          * URL for sms short code update metadata
   7498          * @hide
   7499          */
   7500         public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
   7501                 "sms_short_codes_metadata_url";
   7502 
   7503         /**
   7504          * URL for cert pinlist updates
   7505          * @hide
   7506          */
   7507         public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";
   7508 
   7509         /**
   7510          * URL for cert pinlist updates
   7511          * @hide
   7512          */
   7513         public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";
   7514 
   7515         /**
   7516          * URL for intent firewall updates
   7517          * @hide
   7518          */
   7519         public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
   7520                 "intent_firewall_content_url";
   7521 
   7522         /**
   7523          * URL for intent firewall update metadata
   7524          * @hide
   7525          */
   7526         public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
   7527                 "intent_firewall_metadata_url";
   7528 
   7529         /**
   7530          * SELinux enforcement status. If 0, permissive; if 1, enforcing.
   7531          * @hide
   7532          */
   7533         public static final String SELINUX_STATUS = "selinux_status";
   7534 
   7535         /**
   7536          * Developer setting to force RTL layout.
   7537          * @hide
   7538          */
   7539         public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";
   7540 
   7541         /**
   7542          * Milliseconds after screen-off after which low battery sounds will be silenced.
   7543          *
   7544          * If zero, battery sounds will always play.
   7545          * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
   7546          *
   7547          * @hide
   7548          */
   7549         public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";
   7550 
   7551         /**
   7552          * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
   7553          * the caller is done with this, they should call {@link ContentResolver#delete} to
   7554          * clean up any value that they may have written.
   7555          *
   7556          * @hide
   7557          */
   7558         public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";
   7559 
   7560         /**
   7561          * Defines global runtime overrides to window policy.
   7562          *
   7563          * See {@link com.android.server.policy.PolicyControl} for value format.
   7564          *
   7565          * @hide
   7566          */
   7567         public static final String POLICY_CONTROL = "policy_control";
   7568 
   7569         /**
   7570          * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
   7571          * or ZEN_MODE_NO_INTERRUPTIONS.
   7572          *
   7573          * @hide
   7574          */
   7575         public static final String ZEN_MODE = "zen_mode";
   7576 
   7577         /** @hide */ public static final int ZEN_MODE_OFF = 0;
   7578         /** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
   7579         /** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
   7580         /** @hide */ public static final int ZEN_MODE_ALARMS = 3;
   7581 
   7582         /** @hide */ public static String zenModeToString(int mode) {
   7583             if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
   7584             if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
   7585             if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
   7586             return "ZEN_MODE_OFF";
   7587         }
   7588 
   7589         /** @hide */ public static boolean isValidZenMode(int value) {
   7590             switch (value) {
   7591                 case Global.ZEN_MODE_OFF:
   7592                 case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
   7593                 case Global.ZEN_MODE_ALARMS:
   7594                 case Global.ZEN_MODE_NO_INTERRUPTIONS:
   7595                     return true;
   7596                 default:
   7597                     return false;
   7598             }
   7599         }
   7600 
   7601         /**
   7602          * Value of the ringer before entering zen mode.
   7603          *
   7604          * @hide
   7605          */
   7606         public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";
   7607 
   7608         /**
   7609          * Opaque value, changes when persisted zen mode configuration changes.
   7610          *
   7611          * @hide
   7612          */
   7613         public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";
   7614 
   7615         /**
   7616          * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
   7617          *
   7618          * @hide
   7619          */
   7620         public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
   7621                 "heads_up_notifications_enabled";
   7622 
   7623         /** @hide */ public static final int HEADS_UP_OFF = 0;
   7624         /** @hide */ public static final int HEADS_UP_ON = 1;
   7625 
   7626         /**
   7627          * The name of the device
   7628          *
   7629          * @hide
   7630          */
   7631         public static final String DEVICE_NAME = "device_name";
   7632 
   7633         /**
   7634          * Whether it should be possible to create a guest user on the device.
   7635          * <p>
   7636          * Type: int (0 for disabled, 1 for enabled)
   7637          * @hide
   7638          */
   7639         public static final String GUEST_USER_ENABLED = "guest_user_enabled";
   7640 
   7641         /**
   7642          * Whether the NetworkScoringService has been first initialized.
   7643          * <p>
   7644          * Type: int (0 for false, 1 for true)
   7645          * @hide
   7646          */
   7647         public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";
   7648 
   7649         /**
   7650          * Whether the user wants to be prompted for password to decrypt the device on boot.
   7651          * This only matters if the storage is encrypted.
   7652          * <p>
   7653          * Type: int (0 for false, 1 for true)
   7654          * @hide
   7655          */
   7656         public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";
   7657 
   7658         /**
   7659          * Whether the Volte/VT is enabled
   7660          * <p>
   7661          * Type: int (0 for false, 1 for true)
   7662          * @hide
   7663          */
   7664         public static final String ENHANCED_4G_MODE_ENABLED = "volte_vt_enabled";
   7665 
   7666         /**
   7667          * Whether WFC is enabled
   7668          * <p>
   7669          * Type: int (0 for false, 1 for true)
   7670          *
   7671          * @hide
   7672          */
   7673         public static final String WFC_IMS_ENABLED = "wfc_ims_enabled";
   7674 
   7675         /**
   7676          * WFC Mode.
   7677          * <p>
   7678          * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
   7679          *
   7680          * @hide
   7681          */
   7682         public static final String WFC_IMS_MODE = "wfc_ims_mode";
   7683 
   7684         /**
   7685          * Whether WFC roaming is enabled
   7686          * <p>
   7687          * Type: int (0 for false, 1 for true)
   7688          *
   7689          * @hide
   7690          */
   7691         public static final String WFC_IMS_ROAMING_ENABLED = "wfc_ims_roaming_enabled";
   7692 
   7693         /**
   7694          * Whether user can enable/disable LTE as a preferred network. A carrier might control
   7695          * this via gservices, OMA-DM, carrier app, etc.
   7696          * <p>
   7697          * Type: int (0 for false, 1 for true)
   7698          * @hide
   7699          */
   7700         public static final String LTE_SERVICE_FORCED = "lte_service_forced";
   7701 
   7702         /**
   7703          * Settings to backup. This is here so that it's in the same place as the settings
   7704          * keys and easy to update.
   7705          *
   7706          * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
   7707          * and Secure as well.  This is because those tables drive both backup and
   7708          * restore, and restore needs to properly whitelist keys that used to live
   7709          * in those namespaces.  The keys will only actually be backed up / restored
   7710          * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
   7711          *
   7712          * NOTE: Settings are backed up and restored in the order they appear
   7713          *       in this array. If you have one setting depending on another,
   7714          *       make sure that they are ordered appropriately.
   7715          *
   7716          * @hide
   7717          */
   7718         public static final String[] SETTINGS_TO_BACKUP = {
   7719             BUGREPORT_IN_POWER_MENU,
   7720             STAY_ON_WHILE_PLUGGED_IN,
   7721             AUTO_TIME,
   7722             AUTO_TIME_ZONE,
   7723             POWER_SOUNDS_ENABLED,
   7724             DOCK_SOUNDS_ENABLED,
   7725             USB_MASS_STORAGE_ENABLED,
   7726             ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED,
   7727             WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
   7728             WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
   7729             WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
   7730             WIFI_NUM_OPEN_NETWORKS_KEPT,
   7731             EMERGENCY_TONE,
   7732             CALL_AUTO_RETRY,
   7733             DOCK_AUDIO_MEDIA_ENABLED,
   7734             LOW_POWER_MODE_TRIGGER_LEVEL
   7735         };
   7736 
   7737         // Populated lazily, guarded by class object:
   7738         private static NameValueCache sNameValueCache = new NameValueCache(
   7739                     SYS_PROP_SETTING_VERSION,
   7740                     CONTENT_URI,
   7741                     CALL_METHOD_GET_GLOBAL,
   7742                     CALL_METHOD_PUT_GLOBAL);
   7743 
   7744         // Certain settings have been moved from global to the per-user secure namespace
   7745         private static final HashSet<String> MOVED_TO_SECURE;
   7746         static {
   7747             MOVED_TO_SECURE = new HashSet<String>(1);
   7748             MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
   7749         }
   7750 
   7751         /** @hide */
   7752         public static void getMovedToSecureSettings(Set<String> outKeySet) {
   7753             outKeySet.addAll(MOVED_TO_SECURE);
   7754         }
   7755 
   7756         /**
   7757          * Look up a name in the database.
   7758          * @param resolver to access the database with
   7759          * @param name to look up in the table
   7760          * @return the corresponding value, or null if not present
   7761          */
   7762         public static String getString(ContentResolver resolver, String name) {
   7763             return getStringForUser(resolver, name, UserHandle.myUserId());
   7764         }
   7765 
   7766         /** @hide */
   7767         public static String getStringForUser(ContentResolver resolver, String name,
   7768                 int userHandle) {
   7769             if (MOVED_TO_SECURE.contains(name)) {
   7770                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
   7771                         + " to android.provider.Settings.Secure, returning read-only value.");
   7772                 return Secure.getStringForUser(resolver, name, userHandle);
   7773             }
   7774             return sNameValueCache.getStringForUser(resolver, name, userHandle);
   7775         }
   7776 
   7777         /**
   7778          * Store a name/value pair into the database.
   7779          * @param resolver to access the database with
   7780          * @param name to store
   7781          * @param value to associate with the name
   7782          * @return true if the value was set, false on database errors
   7783          */
   7784         public static boolean putString(ContentResolver resolver,
   7785                 String name, String value) {
   7786             return putStringForUser(resolver, name, value, UserHandle.myUserId());
   7787         }
   7788 
   7789         /** @hide */
   7790         public static boolean putStringForUser(ContentResolver resolver,
   7791                 String name, String value, int userHandle) {
   7792             if (LOCAL_LOGV) {
   7793                 Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
   7794                         + " for " + userHandle);
   7795             }
   7796             // Global and Secure have the same access policy so we can forward writes
   7797             if (MOVED_TO_SECURE.contains(name)) {
   7798                 Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
   7799                         + " to android.provider.Settings.Secure, value is unchanged.");
   7800                 return Secure.putStringForUser(resolver, name, value, userHandle);
   7801             }
   7802             return sNameValueCache.putStringForUser(resolver, name, value, userHandle);
   7803         }
   7804 
   7805         /**
   7806          * Construct the content URI for a particular name/value pair,
   7807          * useful for monitoring changes with a ContentObserver.
   7808          * @param name to look up in the table
   7809          * @return the corresponding content URI, or null if not present
   7810          */
   7811         public static Uri getUriFor(String name) {
   7812             return getUriFor(CONTENT_URI, name);
   7813         }
   7814 
   7815         /**
   7816          * Convenience function for retrieving a single secure settings value
   7817          * as an integer.  Note that internally setting values are always
   7818          * stored as strings; this function converts the string to an integer
   7819          * for you.  The default value will be returned if the setting is
   7820          * not defined or not an integer.
   7821          *
   7822          * @param cr The ContentResolver to access.
   7823          * @param name The name of the setting to retrieve.
   7824          * @param def Value to return if the setting is not defined.
   7825          *
   7826          * @return The setting's current value, or 'def' if it is not defined
   7827          * or not a valid integer.
   7828          */
   7829         public static int getInt(ContentResolver cr, String name, int def) {
   7830             String v = getString(cr, name);
   7831             try {
   7832                 return v != null ? Integer.parseInt(v) : def;
   7833             } catch (NumberFormatException e) {
   7834                 return def;
   7835             }
   7836         }
   7837 
   7838         /**
   7839          * Convenience function for retrieving a single secure settings value
   7840          * as an integer.  Note that internally setting values are always
   7841          * stored as strings; this function converts the string to an integer
   7842          * for you.
   7843          * <p>
   7844          * This version does not take a default value.  If the setting has not
   7845          * been set, or the string value is not a number,
   7846          * it throws {@link SettingNotFoundException}.
   7847          *
   7848          * @param cr The ContentResolver to access.
   7849          * @param name The name of the setting to retrieve.
   7850          *
   7851          * @throws SettingNotFoundException Thrown if a setting by the given
   7852          * name can't be found or the setting value is not an integer.
   7853          *
   7854          * @return The setting's current value.
   7855          */
   7856         public static int getInt(ContentResolver cr, String name)
   7857                 throws SettingNotFoundException {
   7858             String v = getString(cr, name);
   7859             try {
   7860                 return Integer.parseInt(v);
   7861             } catch (NumberFormatException e) {
   7862                 throw new SettingNotFoundException(name);
   7863             }
   7864         }
   7865 
   7866         /**
   7867          * Convenience function for updating a single settings value as an
   7868          * integer. This will either create a new entry in the table if the
   7869          * given name does not exist, or modify the value of the existing row
   7870          * with that name.  Note that internally setting values are always
   7871          * stored as strings, so this function converts the given value to a
   7872          * string before storing it.
   7873          *
   7874          * @param cr The ContentResolver to access.
   7875          * @param name The name of the setting to modify.
   7876          * @param value The new value for the setting.
   7877          * @return true if the value was set, false on database errors
   7878          */
   7879         public static boolean putInt(ContentResolver cr, String name, int value) {
   7880             return putString(cr, name, Integer.toString(value));
   7881         }
   7882 
   7883         /**
   7884          * Convenience function for retrieving a single secure settings value
   7885          * as a {@code long}.  Note that internally setting values are always
   7886          * stored as strings; this function converts the string to a {@code long}
   7887          * for you.  The default value will be returned if the setting is
   7888          * not defined or not a {@code long}.
   7889          *
   7890          * @param cr The ContentResolver to access.
   7891          * @param name The name of the setting to retrieve.
   7892          * @param def Value to return if the setting is not defined.
   7893          *
   7894          * @return The setting's current value, or 'def' if it is not defined
   7895          * or not a valid {@code long}.
   7896          */
   7897         public static long getLong(ContentResolver cr, String name, long def) {
   7898             String valString = getString(cr, name);
   7899             long value;
   7900             try {
   7901                 value = valString != null ? Long.parseLong(valString) : def;
   7902             } catch (NumberFormatException e) {
   7903                 value = def;
   7904             }
   7905             return value;
   7906         }
   7907 
   7908         /**
   7909          * Convenience function for retrieving a single secure settings value
   7910          * as a {@code long}.  Note that internally setting values are always
   7911          * stored as strings; this function converts the string to a {@code long}
   7912          * for you.
   7913          * <p>
   7914          * This version does not take a default value.  If the setting has not
   7915          * been set, or the string value is not a number,
   7916          * it throws {@link SettingNotFoundException}.
   7917          *
   7918          * @param cr The ContentResolver to access.
   7919          * @param name The name of the setting to retrieve.
   7920          *
   7921          * @return The setting's current value.
   7922          * @throws SettingNotFoundException Thrown if a setting by the given
   7923          * name can't be found or the setting value is not an integer.
   7924          */
   7925         public static long getLong(ContentResolver cr, String name)
   7926                 throws SettingNotFoundException {
   7927             String valString = getString(cr, name);
   7928             try {
   7929                 return Long.parseLong(valString);
   7930             } catch (NumberFormatException e) {
   7931                 throw new SettingNotFoundException(name);
   7932             }
   7933         }
   7934 
   7935         /**
   7936          * Convenience function for updating a secure settings value as a long
   7937          * integer. This will either create a new entry in the table if the
   7938          * given name does not exist, or modify the value of the existing row
   7939          * with that name.  Note that internally setting values are always
   7940          * stored as strings, so this function converts the given value to a
   7941          * string before storing it.
   7942          *
   7943          * @param cr The ContentResolver to access.
   7944          * @param name The name of the setting to modify.
   7945          * @param value The new value for the setting.
   7946          * @return true if the value was set, false on database errors
   7947          */
   7948         public static boolean putLong(ContentResolver cr, String name, long value) {
   7949             return putString(cr, name, Long.toString(value));
   7950         }
   7951 
   7952         /**
   7953          * Convenience function for retrieving a single secure settings value
   7954          * as a floating point number.  Note that internally setting values are
   7955          * always stored as strings; this function converts the string to an
   7956          * float for you. The default value will be returned if the setting
   7957          * is not defined or not a valid float.
   7958          *
   7959          * @param cr The ContentResolver to access.
   7960          * @param name The name of the setting to retrieve.
   7961          * @param def Value to return if the setting is not defined.
   7962          *
   7963          * @return The setting's current value, or 'def' if it is not defined
   7964          * or not a valid float.
   7965          */
   7966         public static float getFloat(ContentResolver cr, String name, float def) {
   7967             String v = getString(cr, name);
   7968             try {
   7969                 return v != null ? Float.parseFloat(v) : def;
   7970             } catch (NumberFormatException e) {
   7971                 return def;
   7972             }
   7973         }
   7974 
   7975         /**
   7976          * Convenience function for retrieving a single secure settings value
   7977          * as a float.  Note that internally setting values are always
   7978          * stored as strings; this function converts the string to a float
   7979          * for you.
   7980          * <p>
   7981          * This version does not take a default value.  If the setting has not
   7982          * been set, or the string value is not a number,
   7983          * it throws {@link SettingNotFoundException}.
   7984          *
   7985          * @param cr The ContentResolver to access.
   7986          * @param name The name of the setting to retrieve.
   7987          *
   7988          * @throws SettingNotFoundException Thrown if a setting by the given
   7989          * name can't be found or the setting value is not a float.
   7990          *
   7991          * @return The setting's current value.
   7992          */
   7993         public static float getFloat(ContentResolver cr, String name)
   7994                 throws SettingNotFoundException {
   7995             String v = getString(cr, name);
   7996             if (v == null) {
   7997                 throw new SettingNotFoundException(name);
   7998             }
   7999             try {
   8000                 return Float.parseFloat(v);
   8001             } catch (NumberFormatException e) {
   8002                 throw new SettingNotFoundException(name);
   8003             }
   8004         }
   8005 
   8006         /**
   8007          * Convenience function for updating a single settings value as a
   8008          * floating point number. This will either create a new entry in the
   8009          * table if the given name does not exist, or modify the value of the
   8010          * existing row with that name.  Note that internally setting values
   8011          * are always stored as strings, so this function converts the given
   8012          * value to a string before storing it.
   8013          *
   8014          * @param cr The ContentResolver to access.
   8015          * @param name The name of the setting to modify.
   8016          * @param value The new value for the setting.
   8017          * @return true if the value was set, false on database errors
   8018          */
   8019         public static boolean putFloat(ContentResolver cr, String name, float value) {
   8020             return putString(cr, name, Float.toString(value));
   8021         }
   8022 
   8023 
   8024         /**
   8025           * Subscription to be used for voice call on a multi sim device. The supported values
   8026           * are 0 = SUB1, 1 = SUB2 and etc.
   8027           * @hide
   8028           */
   8029         public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";
   8030 
   8031         /**
   8032           * Used to provide option to user to select subscription during dial.
   8033           * The supported values are 0 = disable or 1 = enable prompt.
   8034           * @hide
   8035           */
   8036         public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";
   8037 
   8038         /**
   8039           * Subscription to be used for data call on a multi sim device. The supported values
   8040           * are 0 = SUB1, 1 = SUB2 and etc.
   8041           * @hide
   8042           */
   8043         public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";
   8044 
   8045         /**
   8046           * Subscription to be used for SMS on a multi sim device. The supported values
   8047           * are 0 = SUB1, 1 = SUB2 and etc.
   8048           * @hide
   8049           */
   8050         public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";
   8051 
   8052        /**
   8053           * Used to provide option to user to select subscription during send SMS.
   8054           * The value 1 - enable, 0 - disable
   8055           * @hide
   8056           */
   8057         public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";
   8058 
   8059 
   8060 
   8061         /** User preferred subscriptions setting.
   8062           * This holds the details of the user selected subscription from the card and
   8063           * the activation status. Each settings string have the coma separated values
   8064           * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
   8065           * @hide
   8066          */
   8067         public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
   8068                 "user_preferred_sub2","user_preferred_sub3"};
   8069 
   8070         /**
   8071          * Whether to enable new contacts aggregator or not.
   8072          * The value 1 - enable, 0 - disable
   8073          * @hide
   8074          */
   8075         public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";
   8076 
   8077         /**
   8078          * Whether to enable contacts metadata syncing or not
   8079          * The value 1 - enable, 0 - disable
   8080          * @hide
   8081          */
   8082         public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";
   8083     }
   8084 
   8085     /**
   8086      * User-defined bookmarks and shortcuts.  The target of each bookmark is an
   8087      * Intent URL, allowing it to be either a web page or a particular
   8088      * application activity.
   8089      *
   8090      * @hide
   8091      */
   8092     public static final class Bookmarks implements BaseColumns
   8093     {
   8094         private static final String TAG = "Bookmarks";
   8095 
   8096         /**
   8097          * The content:// style URL for this table
   8098          */
   8099         public static final Uri CONTENT_URI =
   8100             Uri.parse("content://" + AUTHORITY + "/bookmarks");
   8101 
   8102         /**
   8103          * The row ID.
   8104          * <p>Type: INTEGER</p>
   8105          */
   8106         public static final String ID = "_id";
   8107 
   8108         /**
   8109          * Descriptive name of the bookmark that can be displayed to the user.
   8110          * If this is empty, the title should be resolved at display time (use
   8111          * {@link #getTitle(Context, Cursor)} any time you want to display the
   8112          * title of a bookmark.)
   8113          * <P>
   8114          * Type: TEXT
   8115          * </P>
   8116          */
   8117         public static final String TITLE = "title";
   8118 
   8119         /**
   8120          * Arbitrary string (displayed to the user) that allows bookmarks to be
   8121          * organized into categories.  There are some special names for
   8122          * standard folders, which all start with '@'.  The label displayed for
   8123          * the folder changes with the locale (via {@link #getLabelForFolder}) but
   8124          * the folder name does not change so you can consistently query for
   8125          * the folder regardless of the current locale.
   8126          *
   8127          * <P>Type: TEXT</P>
   8128          *
   8129          */
   8130         public static final String FOLDER = "folder";
   8131 
   8132         /**
   8133          * The Intent URL of the bookmark, describing what it points to.  This
   8134          * value is given to {@link android.content.Intent#getIntent} to create
   8135          * an Intent that can be launched.
   8136          * <P>Type: TEXT</P>
   8137          */
   8138         public static final String INTENT = "intent";
   8139 
   8140         /**
   8141          * Optional shortcut character associated with this bookmark.
   8142          * <P>Type: INTEGER</P>
   8143          */
   8144         public static final String SHORTCUT = "shortcut";
   8145 
   8146         /**
   8147          * The order in which the bookmark should be displayed
   8148          * <P>Type: INTEGER</P>
   8149          */
   8150         public static final String ORDERING = "ordering";
   8151 
   8152         private static final String[] sIntentProjection = { INTENT };
   8153         private static final String[] sShortcutProjection = { ID, SHORTCUT };
   8154         private static final String sShortcutSelection = SHORTCUT + "=?";
   8155 
   8156         /**
   8157          * Convenience function to retrieve the bookmarked Intent for a
   8158          * particular shortcut key.
   8159          *
   8160          * @param cr The ContentResolver to query.
   8161          * @param shortcut The shortcut key.
   8162          *
   8163          * @return Intent The bookmarked URL, or null if there is no bookmark
   8164          *         matching the given shortcut.
   8165          */
   8166         public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
   8167         {
   8168             Intent intent = null;
   8169 
   8170             Cursor c = cr.query(CONTENT_URI,
   8171                     sIntentProjection, sShortcutSelection,
   8172                     new String[] { String.valueOf((int) shortcut) }, ORDERING);
   8173             // Keep trying until we find a valid shortcut
   8174             try {
   8175                 while (intent == null && c.moveToNext()) {
   8176                     try {
   8177                         String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
   8178                         intent = Intent.parseUri(intentURI, 0);
   8179                     } catch (java.net.URISyntaxException e) {
   8180                         // The stored URL is bad...  ignore it.
   8181                     } catch (IllegalArgumentException e) {
   8182                         // Column not found
   8183                         Log.w(TAG, "Intent column not found", e);
   8184                     }
   8185                 }
   8186             } finally {
   8187                 if (c != null) c.close();
   8188             }
   8189 
   8190             return intent;
   8191         }
   8192 
   8193         /**
   8194          * Add a new bookmark to the system.
   8195          *
   8196          * @param cr The ContentResolver to query.
   8197          * @param intent The desired target of the bookmark.
   8198          * @param title Bookmark title that is shown to the user; null if none
   8199          *            or it should be resolved to the intent's title.
   8200          * @param folder Folder in which to place the bookmark; null if none.
   8201          * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
   8202          *            this is non-zero and there is an existing bookmark entry
   8203          *            with this same shortcut, then that existing shortcut is
   8204          *            cleared (the bookmark is not removed).
   8205          * @return The unique content URL for the new bookmark entry.
   8206          */
   8207         public static Uri add(ContentResolver cr,
   8208                                            Intent intent,
   8209                                            String title,
   8210                                            String folder,
   8211                                            char shortcut,
   8212                                            int ordering)
   8213         {
   8214             // If a shortcut is supplied, and it is already defined for
   8215             // another bookmark, then remove the old definition.
   8216             if (shortcut != 0) {
   8217                 cr.delete(CONTENT_URI, sShortcutSelection,
   8218                         new String[] { String.valueOf((int) shortcut) });
   8219             }
   8220 
   8221             ContentValues values = new ContentValues();
   8222             if (title != null) values.put(TITLE, title);
   8223             if (folder != null) values.put(FOLDER, folder);
   8224             values.put(INTENT, intent.toUri(0));
   8225             if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
   8226             values.put(ORDERING, ordering);
   8227             return cr.insert(CONTENT_URI, values);
   8228         }
   8229 
   8230         /**
   8231          * Return the folder name as it should be displayed to the user.  This
   8232          * takes care of localizing special folders.
   8233          *
   8234          * @param r Resources object for current locale; only need access to
   8235          *          system resources.
   8236          * @param folder The value found in the {@link #FOLDER} column.
   8237          *
   8238          * @return CharSequence The label for this folder that should be shown
   8239          *         to the user.
   8240          */
   8241         public static CharSequence getLabelForFolder(Resources r, String folder) {
   8242             return folder;
   8243         }
   8244 
   8245         /**
   8246          * Return the title as it should be displayed to the user. This takes
   8247          * care of localizing bookmarks that point to activities.
   8248          *
   8249          * @param context A context.
   8250          * @param cursor A cursor pointing to the row whose title should be
   8251          *        returned. The cursor must contain at least the {@link #TITLE}
   8252          *        and {@link #INTENT} columns.
   8253          * @return A title that is localized and can be displayed to the user,
   8254          *         or the empty string if one could not be found.
   8255          */
   8256         public static CharSequence getTitle(Context context, Cursor cursor) {
   8257             int titleColumn = cursor.getColumnIndex(TITLE);
   8258             int intentColumn = cursor.getColumnIndex(INTENT);
   8259             if (titleColumn == -1 || intentColumn == -1) {
   8260                 throw new IllegalArgumentException(
   8261                         "The cursor must contain the TITLE and INTENT columns.");
   8262             }
   8263 
   8264             String title = cursor.getString(titleColumn);
   8265             if (!TextUtils.isEmpty(title)) {
   8266                 return title;
   8267             }
   8268 
   8269             String intentUri = cursor.getString(intentColumn);
   8270             if (TextUtils.isEmpty(intentUri)) {
   8271                 return "";
   8272             }
   8273 
   8274             Intent intent;
   8275             try {
   8276                 intent = Intent.parseUri(intentUri, 0);
   8277             } catch (URISyntaxException e) {
   8278                 return "";
   8279             }
   8280 
   8281             PackageManager packageManager = context.getPackageManager();
   8282             ResolveInfo info = packageManager.resolveActivity(intent, 0);
   8283             return info != null ? info.loadLabel(packageManager) : "";
   8284         }
   8285     }
   8286 
   8287     /**
   8288      * Returns the device ID that we should use when connecting to the mobile gtalk server.
   8289      * This is a string like "android-0x1242", where the hex string is the Android ID obtained
   8290      * from the GoogleLoginService.
   8291      *
   8292      * @param androidId The Android ID for this device.
   8293      * @return The device ID that should be used when connecting to the mobile gtalk server.
   8294      * @hide
   8295      */
   8296     public static String getGTalkDeviceId(long androidId) {
   8297         return "android-" + Long.toHexString(androidId);
   8298     }
   8299 
   8300     private static final String[] PM_WRITE_SETTINGS = {
   8301         android.Manifest.permission.WRITE_SETTINGS
   8302     };
   8303     private static final String[] PM_CHANGE_NETWORK_STATE = {
   8304         android.Manifest.permission.CHANGE_NETWORK_STATE,
   8305         android.Manifest.permission.WRITE_SETTINGS
   8306     };
   8307     private static final String[] PM_SYSTEM_ALERT_WINDOW = {
   8308         android.Manifest.permission.SYSTEM_ALERT_WINDOW
   8309     };
   8310 
   8311     /**
   8312      * Performs a strict and comprehensive check of whether a calling package is allowed to
   8313      * write/modify system settings, as the condition differs for pre-M, M+, and
   8314      * privileged/preinstalled apps. If the provided uid does not match the
   8315      * callingPackage, a negative result will be returned.
   8316      * @hide
   8317      */
   8318     public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
   8319             String callingPackage, boolean throwException) {
   8320         return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
   8321                 callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
   8322                 PM_WRITE_SETTINGS, false);
   8323     }
   8324 
   8325     /**
   8326      * Performs a strict and comprehensive check of whether a calling package is allowed to
   8327      * write/modify system settings, as the condition differs for pre-M, M+, and
   8328      * privileged/preinstalled apps. If the provided uid does not match the
   8329      * callingPackage, a negative result will be returned. The caller is expected to have
   8330      * either WRITE_SETTINGS or CHANGE_NETWORK_STATE permission declared.
   8331      *
   8332      * Note: if the check is successful, the operation of this app will be updated to the
   8333      * current time.
   8334      * @hide
   8335      */
   8336     public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
   8337             String callingPackage, boolean throwException) {
   8338         return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
   8339                 callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
   8340                 PM_WRITE_SETTINGS, true);
   8341     }
   8342 
   8343     /**
   8344      * Performs a strict and comprehensive check of whether a calling package is allowed to
   8345      * change the state of network, as the condition differs for pre-M, M+, and
   8346      * privileged/preinstalled apps. If the provided uid does not match the
   8347      * callingPackage, a negative result will be returned. The caller is expected to have
   8348      * either of CHANGE_NETWORK_STATE or WRITE_SETTINGS permission declared.
   8349      * @hide
   8350      */
   8351     public static boolean isCallingPackageAllowedToChangeNetworkState(Context context, int uid,
   8352             String callingPackage, boolean throwException) {
   8353         return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
   8354                 callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
   8355                 PM_CHANGE_NETWORK_STATE, false);
   8356     }
   8357 
   8358     /**
   8359      * Performs a strict and comprehensive check of whether a calling package is allowed to
   8360      * change the state of network, as the condition differs for pre-M, M+, and
   8361      * privileged/preinstalled apps. If the provided uid does not match the
   8362      * callingPackage, a negative result will be returned. The caller is expected to have
   8363      * either CHANGE_NETWORK_STATE or WRITE_SETTINGS permission declared.
   8364      *
   8365      * Note: if the check is successful, the operation of this app will be updated to the
   8366      * current time.
   8367      * @hide
   8368      */
   8369     public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
   8370             String callingPackage, boolean throwException) {
   8371         return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
   8372                 callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
   8373                 PM_CHANGE_NETWORK_STATE, true);
   8374     }
   8375 
   8376     /**
   8377      * Performs a strict and comprehensive check of whether a calling package is allowed to
   8378      * draw on top of other apps, as the conditions differs for pre-M, M+, and
   8379      * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
   8380      * a negative result will be returned.
   8381      * @hide
   8382      */
   8383     public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
   8384             String callingPackage, boolean throwException) {
   8385         return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
   8386                 callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
   8387                 PM_SYSTEM_ALERT_WINDOW, false);
   8388     }
   8389 
   8390     /**
   8391      * Performs a strict and comprehensive check of whether a calling package is allowed to
   8392      * draw on top of other apps, as the conditions differs for pre-M, M+, and
   8393      * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
   8394      * a negative result will be returned.
   8395      *
   8396      * Note: if the check is successful, the operation of this app will be updated to the
   8397      * current time.
   8398      * @hide
   8399      */
   8400     public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
   8401             callingPackage, boolean throwException) {
   8402         return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
   8403                 callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
   8404                 PM_SYSTEM_ALERT_WINDOW, true);
   8405     }
   8406 
   8407     /**
   8408      * Helper method to perform a general and comprehensive check of whether an operation that is
   8409      * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
   8410      * OP_WRITE_SETTINGS
   8411      * @hide
   8412      */
   8413     public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
   8414             int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
   8415             permissions, boolean makeNote) {
   8416         if (callingPackage == null) {
   8417             return false;
   8418         }
   8419 
   8420         AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
   8421         int mode = AppOpsManager.MODE_DEFAULT;
   8422         if (makeNote) {
   8423             mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
   8424         } else {
   8425             mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
   8426         }
   8427 
   8428         switch (mode) {
   8429             case AppOpsManager.MODE_ALLOWED:
   8430                 return true;
   8431 
   8432             case AppOpsManager.MODE_DEFAULT:
   8433                 // this is the default operating mode after an app's installation
   8434                 // In this case we will check all associated static permission to see
   8435                 // if it is granted during install time.
   8436                 for (String permission : permissions) {
   8437                     if (context.checkCallingOrSelfPermission(permission) == PackageManager
   8438                             .PERMISSION_GRANTED) {
   8439                         // if either of the permissions are granted, we will allow it
   8440                         return true;
   8441                     }
   8442                 }
   8443 
   8444             default:
   8445                 // this is for all other cases trickled down here...
   8446                 if (!throwException) {
   8447                     return false;
   8448                 }
   8449         }
   8450 
   8451         // prepare string to throw SecurityException
   8452         StringBuilder exceptionMessage = new StringBuilder();
   8453         exceptionMessage.append(callingPackage);
   8454         exceptionMessage.append(" was not granted ");
   8455         if (permissions.length > 1) {
   8456             exceptionMessage.append(" either of these permissions: ");
   8457         } else {
   8458             exceptionMessage.append(" this permission: ");
   8459         }
   8460         for (int i = 0; i < permissions.length; i++) {
   8461             exceptionMessage.append(permissions[i]);
   8462             exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
   8463         }
   8464 
   8465         throw new SecurityException(exceptionMessage.toString());
   8466     }
   8467 
   8468     /**
   8469      * Retrieves a correponding package name for a given uid. It will query all
   8470      * packages that are associated with the given uid, but it will return only
   8471      * the zeroth result.
   8472      * Note: If package could not be found, a null is returned.
   8473      * @hide
   8474      */
   8475     public static String getPackageNameForUid(Context context, int uid) {
   8476         String[] packages = context.getPackageManager().getPackagesForUid(uid);
   8477         if (packages == null) {
   8478             return null;
   8479         }
   8480         return packages[0];
   8481     }
   8482 }
   8483