| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.providers.settings; |
| |
| import android.annotation.NonNull; |
| import android.app.ActivityManager; |
| import android.app.IActivityManager; |
| import android.app.backup.IBackupManager; |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.Configuration; |
| import android.hardware.display.ColorDisplayManager; |
| import android.icu.util.ULocale; |
| import android.media.AudioManager; |
| import android.media.RingtoneManager; |
| import android.net.Uri; |
| import android.os.LocaleList; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.ArraySet; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.app.LocalePicker; |
| import com.android.settingslib.devicestate.DeviceStateRotationLockSettingsManager; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Locale; |
| import java.util.Set; |
| |
| public class SettingsHelper { |
| private static final String TAG = "SettingsHelper"; |
| private static final String SILENT_RINGTONE = "_silent"; |
| private static final String SETTINGS_REPLACED_KEY = "backup_skip_user_facing_data"; |
| private static final String SETTING_ORIGINAL_KEY_SUFFIX = "_original"; |
| private static final String UNICODE_LOCALE_EXTENSION_FW = "fw"; |
| private static final String UNICODE_LOCALE_EXTENSION_MU = "mu"; |
| private static final String UNICODE_LOCALE_EXTENSION_NU = "nu"; |
| private static final float FLOAT_TOLERANCE = 0.01f; |
| |
| /** See frameworks/base/core/res/res/values/config.xml#config_longPressOnPowerBehavior **/ |
| private static final int LONG_PRESS_POWER_NOTHING = 0; |
| private static final int LONG_PRESS_POWER_GLOBAL_ACTIONS = 1; |
| private static final int LONG_PRESS_POWER_FOR_ASSISTANT = 5; |
| /** See frameworks/base/core/res/res/values/config.xml#config_keyChordPowerVolumeUp **/ |
| private static final int KEY_CHORD_POWER_VOLUME_UP_GLOBAL_ACTIONS = 2; |
| |
| private Context mContext; |
| private AudioManager mAudioManager; |
| private TelephonyManager mTelephonyManager; |
| |
| /** |
| * A few settings elements are special in that a restore of those values needs to |
| * be post-processed by relevant parts of the OS. A restore of any settings element |
| * mentioned in this table will therefore cause the system to send a broadcast with |
| * the {@link Intent#ACTION_SETTING_RESTORED} action, with extras naming the |
| * affected setting and supplying its pre-restore value for comparison. |
| * |
| * @see Intent#ACTION_SETTING_RESTORED |
| * @see System#SETTINGS_TO_BACKUP |
| * @see Secure#SETTINGS_TO_BACKUP |
| * @see Global#SETTINGS_TO_BACKUP |
| * |
| * {@hide} |
| */ |
| private static final ArraySet<String> sBroadcastOnRestore; |
| private static final ArraySet<String> sBroadcastOnRestoreSystemUI; |
| static { |
| sBroadcastOnRestore = new ArraySet<String>(9); |
| sBroadcastOnRestore.add(Settings.Secure.ENABLED_NOTIFICATION_LISTENERS); |
| sBroadcastOnRestore.add(Settings.Secure.ENABLED_VR_LISTENERS); |
| sBroadcastOnRestore.add(Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES); |
| sBroadcastOnRestore.add(Settings.Global.BLUETOOTH_ON); |
| sBroadcastOnRestore.add(Settings.Secure.UI_NIGHT_MODE); |
| sBroadcastOnRestore.add(Settings.Secure.DARK_THEME_CUSTOM_START_TIME); |
| sBroadcastOnRestore.add(Settings.Secure.DARK_THEME_CUSTOM_END_TIME); |
| sBroadcastOnRestore.add(Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED); |
| sBroadcastOnRestore.add(Settings.Secure.ACCESSIBILITY_BUTTON_TARGETS); |
| sBroadcastOnRestoreSystemUI = new ArraySet<String>(2); |
| sBroadcastOnRestoreSystemUI.add(Settings.Secure.QS_TILES); |
| sBroadcastOnRestoreSystemUI.add(Settings.Secure.QS_AUTO_ADDED_TILES); |
| } |
| |
| private static final ArraySet<String> UNICODE_LOCALE_SUPPORTED_EXTENSIONS = new ArraySet<>(); |
| |
| /** |
| * Current supported extensions are fw (first day of week) and mu (temperature unit) extension. |
| * User can set these extensions in Settings app, and it will be appended to the locale, |
| * for example: zh-Hant-TW-u-fw-mon-mu-celsius. So after the factory reset, these extensions |
| * should be restored as well because they are set by users. |
| * We do not put the nu (numbering system) extension here because it is an Android supported |
| * extension and defined in some particular locales, for example: |
| * ar-Arab-MA-u-nu-arab and ar-Arab-YE-u-nu-latn. See |
| * <code>frameworks/base/core/res/res/values/locale_config.xml</code> |
| * The nu extension should not be appended to the current/restored locale after factory reset |
| * if the current/restored locale does not have it. |
| */ |
| static { |
| UNICODE_LOCALE_SUPPORTED_EXTENSIONS.add(UNICODE_LOCALE_EXTENSION_FW); |
| UNICODE_LOCALE_SUPPORTED_EXTENSIONS.add(UNICODE_LOCALE_EXTENSION_MU); |
| } |
| |
| private interface SettingsLookup { |
| public String lookup(ContentResolver resolver, String name, int userHandle); |
| } |
| |
| private static SettingsLookup sSystemLookup = new SettingsLookup() { |
| public String lookup(ContentResolver resolver, String name, int userHandle) { |
| return Settings.System.getStringForUser(resolver, name, userHandle); |
| } |
| }; |
| |
| private static SettingsLookup sSecureLookup = new SettingsLookup() { |
| public String lookup(ContentResolver resolver, String name, int userHandle) { |
| return Settings.Secure.getStringForUser(resolver, name, userHandle); |
| } |
| }; |
| |
| private static SettingsLookup sGlobalLookup = new SettingsLookup() { |
| public String lookup(ContentResolver resolver, String name, int userHandle) { |
| return Settings.Global.getStringForUser(resolver, name, userHandle); |
| } |
| }; |
| |
| public SettingsHelper(Context context) { |
| mContext = context; |
| mAudioManager = (AudioManager) context |
| .getSystemService(Context.AUDIO_SERVICE); |
| mTelephonyManager = (TelephonyManager) context |
| .getSystemService(Context.TELEPHONY_SERVICE); |
| } |
| |
| /** |
| * Sets the property via a call to the appropriate API, if any, and returns |
| * whether or not the setting should be saved to the database as well. |
| * @param name the name of the setting |
| * @param value the string value of the setting |
| * @return whether to continue with writing the value to the database. In |
| * some cases the data will be written by the call to the appropriate API, |
| * and in some cases the property value needs to be modified before setting. |
| */ |
| public void restoreValue(Context context, ContentResolver cr, ContentValues contentValues, |
| Uri destination, String name, String value, int restoredFromSdkInt) { |
| if (isReplacedSystemSetting(name)) { |
| return; |
| } |
| |
| // Will we need a post-restore broadcast for this element? |
| String oldValue = null; |
| boolean sendBroadcast = false; |
| boolean sendBroadcastSystemUI = false; |
| final SettingsLookup table; |
| |
| if (destination.equals(Settings.Secure.CONTENT_URI)) { |
| table = sSecureLookup; |
| } else if (destination.equals(Settings.System.CONTENT_URI)) { |
| table = sSystemLookup; |
| } else { /* must be GLOBAL; this was preflighted by the caller */ |
| table = sGlobalLookup; |
| } |
| |
| sendBroadcast = sBroadcastOnRestore.contains(name); |
| sendBroadcastSystemUI = sBroadcastOnRestoreSystemUI.contains(name); |
| |
| if (sendBroadcast || sendBroadcastSystemUI) { |
| // TODO: http://b/22388012 |
| oldValue = table.lookup(cr, name, UserHandle.USER_SYSTEM); |
| } |
| |
| try { |
| if (Settings.System.SOUND_EFFECTS_ENABLED.equals(name)) { |
| setSoundEffects(Integer.parseInt(value) == 1); |
| // fall through to the ordinary write to settings |
| } else if (Settings.Secure.BACKUP_AUTO_RESTORE.equals(name)) { |
| setAutoRestore(Integer.parseInt(value) == 1); |
| } else if (isAlreadyConfiguredCriticalAccessibilitySetting(name)) { |
| return; |
| } else if (Settings.System.RINGTONE.equals(name) |
| || Settings.System.NOTIFICATION_SOUND.equals(name) |
| || Settings.System.ALARM_ALERT.equals(name)) { |
| setRingtone(name, value); |
| return; |
| } else if (Settings.System.DISPLAY_COLOR_MODE.equals(name)) { |
| int mode = Integer.parseInt(value); |
| String restoredVendorHint = Settings.System.getString(mContext.getContentResolver(), |
| Settings.System.DISPLAY_COLOR_MODE_VENDOR_HINT); |
| final String deviceVendorHint = mContext.getResources().getString( |
| com.android.internal.R.string.config_vendorColorModesRestoreHint); |
| boolean displayColorModeVendorModeHintsMatch = |
| !TextUtils.isEmpty(deviceVendorHint) |
| && deviceVendorHint.equals(restoredVendorHint); |
| // Replace vendor hint with new device's vendor hint. |
| contentValues.clear(); |
| contentValues.put(Settings.NameValueTable.NAME, |
| Settings.System.DISPLAY_COLOR_MODE_VENDOR_HINT); |
| contentValues.put(Settings.NameValueTable.VALUE, deviceVendorHint); |
| cr.insert(destination, contentValues); |
| // If vendor hints match, modes in the vendor range can be restored. Otherwise, only |
| // map standard modes. |
| if (!ColorDisplayManager.isStandardColorMode(mode) |
| && !displayColorModeVendorModeHintsMatch) { |
| return; |
| } |
| } else if (Settings.Global.POWER_BUTTON_LONG_PRESS.equals(name)) { |
| setLongPressPowerBehavior(cr, value); |
| return; |
| } else if (Settings.System.ACCELEROMETER_ROTATION.equals(name) |
| && shouldSkipAutoRotateRestore()) { |
| return; |
| } |
| |
| // Default case: write the restored value to settings |
| contentValues.clear(); |
| contentValues.put(Settings.NameValueTable.NAME, name); |
| contentValues.put(Settings.NameValueTable.VALUE, value); |
| cr.insert(destination, contentValues); |
| } catch (Exception e) { |
| // If we fail to apply the setting, by definition nothing happened |
| sendBroadcast = false; |
| sendBroadcastSystemUI = false; |
| } finally { |
| // If this was an element of interest, send the "we just restored it" |
| // broadcast with the historical value now that the new value has |
| // been committed and observers kicked off. |
| if (sendBroadcast || sendBroadcastSystemUI) { |
| Intent intent = new Intent(Intent.ACTION_SETTING_RESTORED) |
| .addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY) |
| .putExtra(Intent.EXTRA_SETTING_NAME, name) |
| .putExtra(Intent.EXTRA_SETTING_NEW_VALUE, value) |
| .putExtra(Intent.EXTRA_SETTING_PREVIOUS_VALUE, oldValue) |
| .putExtra(Intent.EXTRA_SETTING_RESTORED_FROM_SDK_INT, restoredFromSdkInt); |
| |
| if (sendBroadcast) { |
| intent.setPackage("android"); |
| context.sendBroadcastAsUser(intent, UserHandle.SYSTEM, null); |
| } |
| if (sendBroadcastSystemUI) { |
| intent.setPackage( |
| context.getString(com.android.internal.R.string.config_systemUi)); |
| context.sendBroadcastAsUser(intent, UserHandle.SYSTEM, null); |
| } |
| } |
| } |
| } |
| |
| private boolean shouldSkipAutoRotateRestore() { |
| // When device state based auto rotation settings are available, let's skip the restoring |
| // of the standard auto rotation settings to avoid conflicting setting values. |
| return DeviceStateRotationLockSettingsManager.isDeviceStateRotationLockEnabled(mContext); |
| } |
| |
| public String onBackupValue(String name, String value) { |
| // Special processing for backing up ringtones & notification sounds |
| if (Settings.System.RINGTONE.equals(name) |
| || Settings.System.NOTIFICATION_SOUND.equals(name) |
| || Settings.System.ALARM_ALERT.equals(name)) { |
| if (value == null) { |
| if (Settings.System.RINGTONE.equals(name)) { |
| // For ringtones, we need to distinguish between non-telephony vs telephony |
| if (mTelephonyManager != null && mTelephonyManager.isVoiceCapable()) { |
| // Backup a null ringtone as silent on voice-capable devices |
| return SILENT_RINGTONE; |
| } else { |
| // Skip backup of ringtone on non-telephony devices. |
| return null; |
| } |
| } else { |
| // Backup a null notification sound or alarm alert as silent |
| return SILENT_RINGTONE; |
| } |
| } else { |
| return getCanonicalRingtoneValue(value); |
| } |
| } |
| // Return the original value |
| return isReplacedSystemSetting(name) ? getRealValueForSystemSetting(name) : value; |
| } |
| |
| /** |
| * The setting value might have been replaced temporarily. If that's the case, return the real |
| * value instead of the temporary one. |
| */ |
| @VisibleForTesting |
| public String getRealValueForSystemSetting(String setting) { |
| // The real value irrespectively of the original setting's namespace is stored in |
| // Settings.Secure. |
| return Settings.Secure.getString(mContext.getContentResolver(), |
| setting + SETTING_ORIGINAL_KEY_SUFFIX); |
| } |
| |
| @VisibleForTesting |
| public boolean isReplacedSystemSetting(String setting) { |
| // This list should not be modified. |
| if (!Settings.System.SCREEN_OFF_TIMEOUT.equals(setting)) { |
| return false; |
| } |
| // If this flag is set, values for the system settings from the list above have been |
| // temporarily replaced. We don't want to back up the temporary value or run restore for |
| // such settings. |
| // TODO(154822946): Remove this logic in the next release. |
| return Settings.Secure.getInt(mContext.getContentResolver(), SETTINGS_REPLACED_KEY, |
| /* def */ 0) != 0; |
| } |
| |
| /** |
| * Sets the ringtone of type specified by the name. |
| * |
| * @param name should be Settings.System.RINGTONE, Settings.System.NOTIFICATION_SOUND |
| * or Settings.System.ALARM_ALERT. |
| * @param value can be a canonicalized uri or "_silent" to indicate a silent (null) ringtone. |
| */ |
| private void setRingtone(String name, String value) { |
| // If it's null, don't change the default |
| if (value == null) return; |
| final Uri ringtoneUri; |
| if (SILENT_RINGTONE.equals(value)) { |
| ringtoneUri = null; |
| } else { |
| Uri canonicalUri = Uri.parse(value); |
| ringtoneUri = mContext.getContentResolver().uncanonicalize(canonicalUri); |
| if (ringtoneUri == null) { |
| // Unrecognized or invalid Uri, don't restore |
| return; |
| } |
| } |
| final int ringtoneType = getRingtoneType(name); |
| |
| RingtoneManager.setActualDefaultRingtoneUri(mContext, ringtoneType, ringtoneUri); |
| } |
| |
| private int getRingtoneType(String name) { |
| switch (name) { |
| case Settings.System.RINGTONE: |
| return RingtoneManager.TYPE_RINGTONE; |
| case Settings.System.NOTIFICATION_SOUND: |
| return RingtoneManager.TYPE_NOTIFICATION; |
| case Settings.System.ALARM_ALERT: |
| return RingtoneManager.TYPE_ALARM; |
| default: |
| throw new IllegalArgumentException("Incorrect ringtone name: " + name); |
| } |
| } |
| |
| private String getCanonicalRingtoneValue(String value) { |
| final Uri ringtoneUri = Uri.parse(value); |
| final Uri canonicalUri = mContext.getContentResolver().canonicalize(ringtoneUri); |
| return canonicalUri == null ? null : canonicalUri.toString(); |
| } |
| |
| private boolean isAlreadyConfiguredCriticalAccessibilitySetting(String name) { |
| // These are the critical accessibility settings that are required for users with |
| // accessibility needs to be able to interact with the device. If these settings are |
| // already configured, we will not overwrite them. If they are already set, |
| // it means that the user has performed a global gesture to enable accessibility or set |
| // these settings in the Accessibility portion of the Setup Wizard, and definitely needs |
| // these features working after the restore. |
| switch (name) { |
| case Settings.Secure.ACCESSIBILITY_ENABLED: |
| case Settings.Secure.TOUCH_EXPLORATION_ENABLED: |
| case Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED: |
| case Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED: |
| case Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED: |
| return Settings.Secure.getInt(mContext.getContentResolver(), name, 0) != 0; |
| case Settings.Secure.TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES: |
| case Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES: |
| case Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER: |
| return !TextUtils.isEmpty(Settings.Secure.getString( |
| mContext.getContentResolver(), name)); |
| case Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE: |
| float defaultScale = mContext.getResources().getFraction( |
| R.fraction.def_accessibility_display_magnification_scale, 1, 1); |
| float currentScale = Settings.Secure.getFloat( |
| mContext.getContentResolver(), name, defaultScale); |
| return Math.abs(currentScale - defaultScale) >= FLOAT_TOLERANCE; |
| case Settings.System.FONT_SCALE: |
| return Settings.System.getFloat(mContext.getContentResolver(), name, 1.0f) != 1.0f; |
| default: |
| return false; |
| } |
| } |
| |
| private void setAutoRestore(boolean enabled) { |
| try { |
| IBackupManager bm = IBackupManager.Stub.asInterface( |
| ServiceManager.getService(Context.BACKUP_SERVICE)); |
| if (bm != null) { |
| bm.setAutoRestore(enabled); |
| } |
| } catch (RemoteException e) {} |
| } |
| |
| private void setSoundEffects(boolean enable) { |
| if (enable) { |
| mAudioManager.loadSoundEffects(); |
| } else { |
| mAudioManager.unloadSoundEffects(); |
| } |
| } |
| |
| /** |
| * Correctly sets long press power button Behavior. |
| * |
| * The issue is that setting for LongPressPower button Behavior is not available on all devices |
| * and actually changes default Behavior of two properties - the long press power button |
| * and volume up + power button combo. OEM can also reconfigure these Behaviors in config.xml, |
| * so we need to be careful that we don't irreversibly change power button Behavior when |
| * restoring. Or switch to a non-default button Behavior. |
| */ |
| private void setLongPressPowerBehavior(ContentResolver cr, String value) { |
| // We will not restore the value if the long press power setting option is unavailable. |
| if (!mContext.getResources().getBoolean( |
| com.android.internal.R.bool.config_longPressOnPowerForAssistantSettingAvailable)) { |
| return; |
| } |
| |
| int longPressOnPowerBehavior; |
| try { |
| longPressOnPowerBehavior = Integer.parseInt(value); |
| } catch (NumberFormatException e) { |
| return; |
| } |
| |
| if (longPressOnPowerBehavior < LONG_PRESS_POWER_NOTHING |
| || longPressOnPowerBehavior > LONG_PRESS_POWER_FOR_ASSISTANT) { |
| return; |
| } |
| |
| // When user enables long press power for Assistant, we also switch the meaning |
| // of Volume Up + Power key chord to the "Show power menu" option. |
| // If the user disables long press power for Assistant, we switch back to default OEM |
| // Behavior configured in config.xml. If the default Behavior IS "LPP for Assistant", |
| // then we fall back to "Long press for Power Menu" Behavior. |
| if (longPressOnPowerBehavior == LONG_PRESS_POWER_FOR_ASSISTANT) { |
| Settings.Global.putInt(cr, Settings.Global.POWER_BUTTON_LONG_PRESS, |
| LONG_PRESS_POWER_FOR_ASSISTANT); |
| Settings.Global.putInt(cr, Settings.Global.KEY_CHORD_POWER_VOLUME_UP, |
| KEY_CHORD_POWER_VOLUME_UP_GLOBAL_ACTIONS); |
| } else { |
| // We're restoring "LPP for Assistant Disabled" state, prefer OEM config.xml Behavior |
| // if possible. |
| int longPressOnPowerDeviceBehavior = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_longPressOnPowerBehavior); |
| if (longPressOnPowerDeviceBehavior == LONG_PRESS_POWER_FOR_ASSISTANT) { |
| // The default on device IS "LPP for Assistant Enabled" so fall back to power menu. |
| Settings.Global.putInt(cr, Settings.Global.POWER_BUTTON_LONG_PRESS, |
| LONG_PRESS_POWER_GLOBAL_ACTIONS); |
| } else { |
| // The default is non-Assistant Behavior, so restore that default. |
| Settings.Global.putInt(cr, Settings.Global.POWER_BUTTON_LONG_PRESS, |
| longPressOnPowerDeviceBehavior); |
| } |
| |
| // Clear and restore default power + volume up Behavior as well. |
| int powerVolumeUpDefaultBehavior = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_keyChordPowerVolumeUp); |
| Settings.Global.putInt(cr, Settings.Global.KEY_CHORD_POWER_VOLUME_UP, |
| powerVolumeUpDefaultBehavior); |
| } |
| } |
| |
| /* package */ byte[] getLocaleData() { |
| Configuration conf = mContext.getResources().getConfiguration(); |
| return conf.getLocales().toLanguageTags().getBytes(); |
| } |
| |
| private static Locale toFullLocale(@NonNull Locale locale) { |
| if (locale.getScript().isEmpty() || locale.getCountry().isEmpty()) { |
| return ULocale.addLikelySubtags(ULocale.forLocale(locale)).toLocale(); |
| } |
| return locale; |
| } |
| |
| /** |
| * Merging the locale came from backup server and current device locale. |
| * |
| * Merge works with following rules. |
| * - The backup locales are appended to the current locale with keeping order. |
| * e.g. current locale "en-US,zh-CN" and backup locale "ja-JP,ko-KR" are merged to |
| * "en-US,zh-CH,ja-JP,ko-KR". |
| * |
| * - Duplicated locales are dropped. |
| * e.g. current locale "en-US,zh-CN" and backup locale "ja-JP,zh-Hans-CN,en-US" are merged to |
| * "en-US,zh-CN,ja-JP". |
| * |
| * - Unsupported locales are dropped. |
| * e.g. current locale "en-US" and backup locale "ja-JP,zh-CN" but the supported locales |
| * are "en-US,zh-CN", the merged locale list is "en-US,zh-CN". |
| * |
| * - The final result locale list only contains the supported locales. |
| * e.g. current locale "en-US" and backup locale "zh-Hans-CN" and supported locales are |
| * "en-US,zh-CN", the merged locale list is "en-US,zh-CN". |
| * |
| * @param restore The locale list that came from backup server. |
| * @param current The device's locale setting. |
| * @param supportedLocales The list of language tags supported by this device. |
| */ |
| @VisibleForTesting |
| public static LocaleList resolveLocales(LocaleList restore, LocaleList current, |
| String[] supportedLocales) { |
| final HashMap<Locale, Locale> allLocales = new HashMap<>(supportedLocales.length); |
| for (String supportedLocaleStr : supportedLocales) { |
| final Locale locale = Locale.forLanguageTag(supportedLocaleStr); |
| allLocales.put(toFullLocale(locale), locale); |
| } |
| |
| // After restoring to reset locales, need to get extensions from restored locale. Get the |
| // first restored locale to check its extension. |
| final Locale restoredLocale = restore.isEmpty() |
| ? Locale.ROOT |
| : restore.get(0); |
| final ArrayList<Locale> filtered = new ArrayList<>(current.size()); |
| for (int i = 0; i < current.size(); i++) { |
| Locale locale = copyExtensionToTargetLocale(restoredLocale, current.get(i)); |
| allLocales.remove(toFullLocale(locale)); |
| filtered.add(locale); |
| } |
| |
| for (int i = 0; i < restore.size(); i++) { |
| final Locale restoredLocaleWithExtension = copyExtensionToTargetLocale(restoredLocale, |
| getFilteredLocale(restore.get(i), allLocales)); |
| if (restoredLocaleWithExtension != null) { |
| filtered.add(restoredLocaleWithExtension); |
| } |
| } |
| if (filtered.size() == current.size()) { |
| return current; // Nothing added to current locale list. |
| } |
| |
| return new LocaleList(filtered.toArray(new Locale[filtered.size()])); |
| } |
| |
| private static Locale copyExtensionToTargetLocale(Locale restoredLocale, |
| Locale targetLocale) { |
| if (!restoredLocale.hasExtensions()) { |
| return targetLocale; |
| } |
| |
| if (targetLocale == null) { |
| return null; |
| } |
| |
| Locale.Builder builder = new Locale.Builder() |
| .setLocale(targetLocale); |
| Set<String> unicodeLocaleKeys = restoredLocale.getUnicodeLocaleKeys(); |
| unicodeLocaleKeys.stream().forEach(key -> { |
| // Copy all supported extensions from restored locales except "nu" extension. The "nu" |
| // extension has been added in #getFilteredLocale(Locale, HashMap<Locale, Locale>) |
| // already, we don't need to add it again. |
| if (UNICODE_LOCALE_SUPPORTED_EXTENSIONS.contains(key)) { |
| builder.setUnicodeLocaleKeyword(key, restoredLocale.getUnicodeLocaleType(key)); |
| } |
| }); |
| return builder.build(); |
| } |
| |
| private static Locale getFilteredLocale(Locale restoreLocale, |
| HashMap<Locale, Locale> allLocales) { |
| Locale locale = allLocales.remove(toFullLocale(restoreLocale)); |
| if (locale != null) { |
| return locale; |
| } |
| |
| Locale filteredLocale = new Locale.Builder() |
| .setLocale(restoreLocale.stripExtensions()) |
| .setUnicodeLocaleKeyword(UNICODE_LOCALE_EXTENSION_NU, |
| restoreLocale.getUnicodeLocaleType(UNICODE_LOCALE_EXTENSION_NU)) |
| .build(); |
| return allLocales.remove(toFullLocale(filteredLocale)); |
| } |
| |
| /** |
| * Sets the locale specified. Input data is the byte representation of comma separated |
| * multiple BCP-47 language tags. For backwards compatibility, strings of the form |
| * {@code ll_CC} are also accepted, where {@code ll} is a two letter language |
| * code and {@code CC} is a two letter country code. |
| * |
| * @param data the comma separated BCP-47 language tags in bytes. |
| */ |
| /* package */ void setLocaleData(byte[] data, int size) { |
| final Configuration conf = mContext.getResources().getConfiguration(); |
| |
| // Replace "_" with "-" to deal with older backups. |
| final String localeCodes = new String(data, 0, size).replace('_', '-'); |
| final LocaleList localeList = LocaleList.forLanguageTags(localeCodes); |
| if (localeList.isEmpty()) { |
| return; |
| } |
| |
| final String[] supportedLocales = LocalePicker.getSupportedLocales(mContext); |
| final LocaleList currentLocales = conf.getLocales(); |
| |
| final LocaleList merged = resolveLocales(localeList, currentLocales, supportedLocales); |
| if (merged.equals(currentLocales)) { |
| return; |
| } |
| |
| try { |
| IActivityManager am = ActivityManager.getService(); |
| final Configuration config = new Configuration(); |
| config.setLocales(merged); |
| // indicate this isn't some passing default - the user wants this remembered |
| config.userSetLocale = true; |
| |
| am.updatePersistentConfigurationWithAttribution(config, mContext.getOpPackageName(), |
| mContext.getAttributionTag()); |
| } catch (RemoteException e) { |
| // Intentionally left blank |
| } |
| } |
| |
| /** |
| * Informs the audio service of changes to the settings so that |
| * they can be re-read and applied. |
| */ |
| void applyAudioSettings() { |
| AudioManager am = new AudioManager(mContext); |
| am.reloadAudioSettings(); |
| } |
| } |
