/*
 * Copyright (C) 2008 The Android Open Source Project
 * Copyright (C) 2013-2014 The CyanogenMod 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.settings;

import android.Manifest;
import android.app.Activity;
import android.app.ActivityManagerNative;
import android.app.AlertDialog;
import android.app.AppOpsManager;
import android.app.AppOpsManager.PackageOps;
import android.app.Dialog;
import android.app.admin.DevicePolicyManager;
import android.app.backup.IBackupManager;
import android.bluetooth.BluetoothAdapter;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.ApplicationInfo;
import android.content.pm.IShortcutService;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.net.NetworkUtils;
import android.net.wifi.IWifiManager;
import android.net.wifi.WifiInfo;
import android.hardware.usb.IUsbManager;
import android.hardware.usb.UsbManager;
import android.net.wifi.WifiManager;
import android.os.AsyncTask;
import android.os.BatteryManager;
import android.os.Build;
import android.os.Bundle;
import android.os.IBinder;
import android.os.Parcel;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.StrictMode;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.storage.IMountService;
import android.provider.SearchIndexableResource;
import android.provider.Settings;
import android.service.persistentdata.PersistentDataBlockManager;
import android.support.v14.preference.SwitchPreference;
import android.support.v7.preference.ListPreference;
import android.support.v7.preference.Preference;
import android.support.v7.preference.Preference.OnPreferenceChangeListener;
import android.support.v7.preference.Preference.OnPreferenceClickListener;
import android.support.v7.preference.PreferenceGroup;
import android.support.v7.preference.PreferenceScreen;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.IWindowManager;
import android.view.LayoutInflater;
import android.view.ThreadedRenderer;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityManager;
import android.webkit.IWebViewUpdateService;
import android.webkit.WebViewProviderInfo;
import android.widget.Switch;
import android.widget.Toast;

import com.android.internal.app.LocalePicker;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.Settings.AppOpsSummaryActivity;
import com.android.settings.applications.BackgroundCheckSummary;
import com.android.settings.fuelgauge.InactiveApps;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;
import com.android.settings.widget.SwitchBar;
import com.android.settingslib.RestrictedLockUtils;
import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
import com.android.settingslib.RestrictedSwitchPreference;

import cyanogenmod.providers.CMSettings;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;

/*
 * Displays preferences for application developers.
 */
public class DevelopmentSettings extends RestrictedSettingsFragment
        implements DialogInterface.OnClickListener, DialogInterface.OnDismissListener,
                OnPreferenceChangeListener, SwitchBar.OnSwitchChangeListener, Indexable,
                OnPreferenceClickListener {
    private static final String TAG = "DevelopmentSettings";

    /**
     * Preference file were development settings prefs are stored.
     */
    public static final String PREF_FILE = "development";

    /**
     * Whether to show the development settings to the user.  Default is false.
     */
    public static final String PREF_SHOW = "show";

    private static final String ENABLE_ADB = "enable_adb";
    private static final String ADB_TCPIP = "adb_over_network";
    private static final String CLEAR_ADB_KEYS = "clear_adb_keys";
    private static final String ENABLE_TERMINAL = "enable_terminal";
    private static final String KEEP_SCREEN_ON = "keep_screen_on";
    private static final String BT_HCI_SNOOP_LOG = "bt_hci_snoop_log";
    private static final String WEBVIEW_PROVIDER_KEY = "select_webview_provider";
    private static final String WEBVIEW_MULTIPROCESS_KEY = "enable_webview_multiprocess";
    private static final String ENABLE_OEM_UNLOCK = "oem_unlock_enable";
    private static final String HDCP_CHECKING_KEY = "hdcp_checking";
    private static final String HDCP_CHECKING_PROPERTY = "persist.sys.hdcp_checking";
    private static final String LOCAL_BACKUP_PASSWORD = "local_backup_password";
    private static final String HARDWARE_UI_PROPERTY = "persist.sys.ui.hw";
    private static final String MSAA_PROPERTY = "debug.egl.force_msaa";
    private static final String BUGREPORT = "bugreport";
    private static final String BUGREPORT_IN_POWER_KEY = "bugreport_in_power";
    private static final String OPENGL_TRACES_PROPERTY = "debug.egl.trace";
    private static final String TUNER_UI_KEY = "tuner_ui";
    private static final String COLOR_TEMPERATURE_PROPERTY = "persist.sys.debug.color_temp";

    private static final String DEBUG_APP_KEY = "debug_app";
    private static final String WAIT_FOR_DEBUGGER_KEY = "wait_for_debugger";
    private static final String MOCK_LOCATION_APP_KEY = "mock_location_app";
    private static final String VERIFY_APPS_OVER_USB_KEY = "verify_apps_over_usb";
    private static final String DEBUG_VIEW_ATTRIBUTES =  "debug_view_attributes";
    private static final String FORCE_ALLOW_ON_EXTERNAL_KEY = "force_allow_on_external";
    private static final String STRICT_MODE_KEY = "strict_mode";
    private static final String POINTER_LOCATION_KEY = "pointer_location";
    private static final String SHOW_TOUCHES_KEY = "show_touches";
    private static final String SHOW_SCREEN_UPDATES_KEY = "show_screen_updates";
    private static final String DISABLE_OVERLAYS_KEY = "disable_overlays";
    private static final String SIMULATE_COLOR_SPACE = "simulate_color_space";
    private static final String USB_AUDIO_KEY = "usb_audio";
    private static final String FORCE_HARDWARE_UI_KEY = "force_hw_ui";
    private static final String FORCE_MSAA_KEY = "force_msaa";
    private static final String TRACK_FRAME_TIME_KEY = "track_frame_time";
    private static final String SHOW_NON_RECTANGULAR_CLIP_KEY = "show_non_rect_clip";
    private static final String SHOW_HW_SCREEN_UPDATES_KEY = "show_hw_screen_udpates";
    private static final String SHOW_HW_LAYERS_UPDATES_KEY = "show_hw_layers_udpates";
    private static final String DEBUG_HW_OVERDRAW_KEY = "debug_hw_overdraw";
    private static final String DEBUG_LAYOUT_KEY = "debug_layout";
    private static final String FORCE_RTL_LAYOUT_KEY = "force_rtl_layout_all_locales";
    private static final String WINDOW_ANIMATION_SCALE_KEY = "window_animation_scale";
    private static final String TRANSITION_ANIMATION_SCALE_KEY = "transition_animation_scale";
    private static final String ANIMATOR_DURATION_SCALE_KEY = "animator_duration_scale";
    private static final String OVERLAY_DISPLAY_DEVICES_KEY = "overlay_display_devices";
    private static final String DEBUG_DEBUGGING_CATEGORY_KEY = "debug_debugging_category";
    private static final String SELECT_LOGD_SIZE_KEY = "select_logd_size";
    private static final String SELECT_LOGD_SIZE_PROPERTY = "persist.logd.size";
    private static final String SELECT_LOGD_TAG_PROPERTY = "persist.log.tag";
    // Tricky, isLoggable only checks for first character, assumes silence
    private static final String SELECT_LOGD_TAG_SILENCE = "Settings";
    private static final String SELECT_LOGD_SNET_TAG_PROPERTY = "persist.log.tag.snet_event_log";
    private static final String SELECT_LOGD_RUNTIME_SNET_TAG_PROPERTY = "log.tag.snet_event_log";
    private static final String SELECT_LOGD_DEFAULT_SIZE_PROPERTY = "ro.logd.size";
    private static final String SELECT_LOGD_DEFAULT_SIZE_VALUE = "262144";
    private static final String SELECT_LOGD_SVELTE_DEFAULT_SIZE_VALUE = "65536";
    // 32768 is merely a menu marker, 64K is our lowest log buffer size we replace it with.
    private static final String SELECT_LOGD_MINIMUM_SIZE_VALUE = "65536";
    private static final String SELECT_LOGD_OFF_SIZE_MARKER_VALUE = "32768";
    private static final String SELECT_LOGPERSIST_KEY = "select_logpersist";
    private static final String SELECT_LOGPERSIST_PROPERTY = "persist.logd.logpersistd";
    private static final String ACTUAL_LOGPERSIST_PROPERTY = "logd.logpersistd";
    private static final String SELECT_LOGPERSIST_PROPERTY_SERVICE = "logcatd";
    private static final String SELECT_LOGPERSIST_PROPERTY_CLEAR = "clear";
    private static final String SELECT_LOGPERSIST_PROPERTY_STOP = "stop";
    private static final String SELECT_LOGPERSIST_PROPERTY_BUFFER = "persist.logd.logpersistd.buffer";
    private static final String ACTUAL_LOGPERSIST_PROPERTY_BUFFER = "logd.logpersistd.buffer";
    private static final String ACTUAL_LOGPERSIST_PROPERTY_ENABLE = "logd.logpersistd.enable";

    private static final String WIFI_DISPLAY_CERTIFICATION_KEY = "wifi_display_certification";
    private static final String WIFI_VERBOSE_LOGGING_KEY = "wifi_verbose_logging";
    private static final String WIFI_AGGRESSIVE_HANDOVER_KEY = "wifi_aggressive_handover";
    private static final String WIFI_ALLOW_SCAN_WITH_TRAFFIC_KEY = "wifi_allow_scan_with_traffic";
    private static final String USB_CONFIGURATION_KEY = "select_usb_configuration";
    private static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";
    private static final String KEY_COLOR_MODE = "color_mode";
    private static final String FORCE_RESIZABLE_KEY = "force_resizable_activities";
    private static final String COLOR_TEMPERATURE_KEY = "color_temperature";

    private static final String BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_KEY =
                                    "bluetooth_disable_absolute_volume";
    private static final String BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_PROPERTY =
                                    "persist.bluetooth.disableabsvol";

    private static final String INACTIVE_APPS_KEY = "inactive_apps";

    private static final String ROOT_ACCESS_KEY = "root_access";
    private static final String ROOT_ACCESS_PROPERTY = "persist.sys.root_access";

    private static final String ROOT_APPOPS_KEY = "root_appops";

    private static final String IMMEDIATELY_DESTROY_ACTIVITIES_KEY
            = "immediately_destroy_activities";
    private static final String APP_PROCESS_LIMIT_KEY = "app_process_limit";

    private static final String BACKGROUND_CHECK_KEY = "background_check";

    private static final String SHOW_ALL_ANRS_KEY = "show_all_anrs";

    private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";

    private static final String TERMINAL_APP_PACKAGE = "com.android.terminal";

    private static final String KEY_CONVERT_FBE = "convert_to_file_encryption";

    private static final String OTA_DISABLE_AUTOMATIC_UPDATE_KEY = "ota_disable_automatic_update";

    private static final String DEVELOPMENT_TOOLS = "development_tools";

    private static final int RESULT_DEBUG_APP = 1000;
    private static final int RESULT_MOCK_LOCATION_APP = 1001;

    private static final String PERSISTENT_DATA_BLOCK_PROP = "ro.frp.pst";
    private static final String FLASH_LOCKED_PROP = "ro.boot.flash.locked";

    private static final String SHORTCUT_MANAGER_RESET_KEY = "reset_shortcut_manager_throttling";

    private static final int REQUEST_CODE_ENABLE_OEM_UNLOCK = 0;

    private static final int[] MOCK_LOCATION_APP_OPS = new int[] {AppOpsManager.OP_MOCK_LOCATION};

    private IWindowManager mWindowManager;
    private IBackupManager mBackupManager;
    private IWebViewUpdateService mWebViewUpdateService;
    private DevicePolicyManager mDpm;
    private UserManager mUm;
    private WifiManager mWifiManager;
    private PersistentDataBlockManager mOemUnlockManager;
    private TelephonyManager mTelephonyManager;

    private SwitchBar mSwitchBar;
    private boolean mLastEnabledState;
    private boolean mHaveDebugSettings;
    private boolean mDontPokeProperties;

    private SwitchPreference mEnableAdb;
    private SwitchPreference mAdbOverNetwork;
    private Preference mClearAdbKeys;
    private SwitchPreference mEnableTerminal;
    private Preference mBugreport;
    private SwitchPreference mBugreportInPower;
    private RestrictedSwitchPreference mKeepScreenOn;
    private SwitchPreference mBtHciSnoopLog;
    private RestrictedSwitchPreference mEnableOemUnlock;
    private SwitchPreference mDebugViewAttributes;
    private SwitchPreference mForceAllowOnExternal;

    private PreferenceScreen mPassword;
    private String mDebugApp;
    private Preference mDebugAppPref;

    private String mMockLocationApp;
    private Preference mMockLocationAppPref;

    private SwitchPreference mWaitForDebugger;
    private SwitchPreference mVerifyAppsOverUsb;
    private SwitchPreference mWifiDisplayCertification;
    private SwitchPreference mWifiVerboseLogging;
    private SwitchPreference mWifiAggressiveHandover;
    private SwitchPreference mMobileDataAlwaysOn;
    private SwitchPreference mBluetoothDisableAbsVolume;
    private SwitchPreference mOtaDisableAutomaticUpdate;

    private SwitchPreference mWifiAllowScansWithTraffic;
    private SwitchPreference mStrictMode;
    private SwitchPreference mPointerLocation;
    private SwitchPreference mShowTouches;
    private SwitchPreference mShowScreenUpdates;
    private SwitchPreference mDisableOverlays;
    private SwitchPreference mForceHardwareUi;
    private SwitchPreference mForceMsaa;
    private SwitchPreference mShowHwScreenUpdates;
    private SwitchPreference mShowHwLayersUpdates;
    private SwitchPreference mDebugLayout;
    private SwitchPreference mForceRtlLayout;
    private ListPreference mDebugHwOverdraw;
    private ListPreference mLogdSize;
    private ListPreference mLogpersist;
    private ListPreference mUsbConfiguration;
    private ListPreference mTrackFrameTime;
    private ListPreference mShowNonRectClip;
    private ListPreference mWindowAnimationScale;
    private ListPreference mTransitionAnimationScale;
    private ListPreference mAnimatorDurationScale;
    private ListPreference mOverlayDisplayDevices;

    private SwitchPreference mWebViewMultiprocess;
    private ListPreference mWebViewProvider;

    private ListPreference mSimulateColorSpace;

    private SwitchPreference mUSBAudio;
    private SwitchPreference mImmediatelyDestroyActivities;

    private ListPreference mAppProcessLimit;

    private SwitchPreference mShowAllANRs;

    private ColorModePreference mColorModePreference;

    private Preference mRootAppops;

    private SwitchPreference mForceResizable;

    private SwitchPreference mColorTemperaturePreference;

    private ListPreference mRootAccess;
    private Object mSelectedRootValue;
    private PreferenceScreen mDevelopmentTools;

    private final ArrayList<Preference> mAllPrefs = new ArrayList<Preference>();

    private final ArrayList<SwitchPreference> mResetSwitchPrefs
            = new ArrayList<SwitchPreference>();

    private final HashSet<Preference> mDisabledPrefs = new HashSet<Preference>();
    // To track whether a confirmation dialog was clicked.
    private boolean mDialogClicked;
    private Dialog mEnableDialog;
    private Dialog mAdbDialog;

    private Dialog mAdbTcpDialog;
    private Dialog mAdbKeysDialog;
    private boolean mUnavailable;
    private Dialog mRootDialog;

    private boolean mLogpersistCleared;
    private Dialog mLogpersistClearDialog;

    public DevelopmentSettings() {
        super(UserManager.DISALLOW_DEBUGGING_FEATURES);
    }

    @Override
    protected int getMetricsCategory() {
        return MetricsEvent.DEVELOPMENT;
    }

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        mWindowManager = IWindowManager.Stub.asInterface(ServiceManager.getService("window"));
        mBackupManager = IBackupManager.Stub.asInterface(
                ServiceManager.getService(Context.BACKUP_SERVICE));
        mWebViewUpdateService  =
            IWebViewUpdateService.Stub.asInterface(ServiceManager.getService("webviewupdate"));
        mOemUnlockManager = (PersistentDataBlockManager)getActivity()
                .getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE);
        mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        mDpm = (DevicePolicyManager)getActivity().getSystemService(Context.DEVICE_POLICY_SERVICE);
        mUm = (UserManager) getSystemService(Context.USER_SERVICE);

        mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);

        setIfOnlyAvailableForAdmins(true);
        if (isUiRestricted() || !Utils.isDeviceProvisioned(getActivity())) {
            // Block access to developer options if the user is not the owner, if user policy
            // restricts it, or if the device has not been provisioned
            mUnavailable = true;
            setPreferenceScreen(new PreferenceScreen(getPrefContext(), null));
            return;
        }

        addPreferencesFromResource(R.xml.development_prefs);

        final PreferenceGroup debugDebuggingCategory = (PreferenceGroup)
                findPreference(DEBUG_DEBUGGING_CATEGORY_KEY);
        mEnableAdb = findAndInitSwitchPref(ENABLE_ADB);
        mAdbOverNetwork = findAndInitSwitchPref(ADB_TCPIP);
        mClearAdbKeys = findPreference(CLEAR_ADB_KEYS);
        if (!SystemProperties.getBoolean("ro.adb.secure", false)) {
            if (debugDebuggingCategory != null) {
                debugDebuggingCategory.removePreference(mClearAdbKeys);
            }
        }
        mAllPrefs.add(mClearAdbKeys);
        mEnableTerminal = findAndInitSwitchPref(ENABLE_TERMINAL);
        if (!isPackageInstalled(getActivity(), TERMINAL_APP_PACKAGE)) {
            debugDebuggingCategory.removePreference(mEnableTerminal);
            mEnableTerminal = null;
        }

        mBugreport = findPreference(BUGREPORT);
        mBugreportInPower = findAndInitSwitchPref(BUGREPORT_IN_POWER_KEY);
        mKeepScreenOn = (RestrictedSwitchPreference) findAndInitSwitchPref(KEEP_SCREEN_ON);
        mBtHciSnoopLog = findAndInitSwitchPref(BT_HCI_SNOOP_LOG);
        mEnableOemUnlock = (RestrictedSwitchPreference) findAndInitSwitchPref(ENABLE_OEM_UNLOCK);
        if (!showEnableOemUnlockPreference()) {
            removePreference(mEnableOemUnlock);
            mEnableOemUnlock = null;
        }

        mDebugViewAttributes = findAndInitSwitchPref(DEBUG_VIEW_ATTRIBUTES);
        mForceAllowOnExternal = findAndInitSwitchPref(FORCE_ALLOW_ON_EXTERNAL_KEY);
        mPassword = (PreferenceScreen) findPreference(LOCAL_BACKUP_PASSWORD);
        mAllPrefs.add(mPassword);

        if (!mUm.isAdminUser()) {
            disableForUser(mEnableAdb);
            disableForUser(mClearAdbKeys);
            disableForUser(mEnableTerminal);
            disableForUser(mPassword);
        }

        mDebugAppPref = findPreference(DEBUG_APP_KEY);
        mAllPrefs.add(mDebugAppPref);
        mWaitForDebugger = findAndInitSwitchPref(WAIT_FOR_DEBUGGER_KEY);

        mMockLocationAppPref = findPreference(MOCK_LOCATION_APP_KEY);
        mAllPrefs.add(mMockLocationAppPref);

        mVerifyAppsOverUsb = findAndInitSwitchPref(VERIFY_APPS_OVER_USB_KEY);
        if (!showVerifierSetting()) {
            if (debugDebuggingCategory != null) {
                debugDebuggingCategory.removePreference(mVerifyAppsOverUsb);
            } else {
                mVerifyAppsOverUsb.setEnabled(false);
            }
        }
        mStrictMode = findAndInitSwitchPref(STRICT_MODE_KEY);
        mPointerLocation = findAndInitSwitchPref(POINTER_LOCATION_KEY);
        mShowTouches = findAndInitSwitchPref(SHOW_TOUCHES_KEY);
        mShowScreenUpdates = findAndInitSwitchPref(SHOW_SCREEN_UPDATES_KEY);
        mDisableOverlays = findAndInitSwitchPref(DISABLE_OVERLAYS_KEY);
        mForceHardwareUi = findAndInitSwitchPref(FORCE_HARDWARE_UI_KEY);
        mForceMsaa = findAndInitSwitchPref(FORCE_MSAA_KEY);
        mTrackFrameTime = addListPreference(TRACK_FRAME_TIME_KEY);
        mShowNonRectClip = addListPreference(SHOW_NON_RECTANGULAR_CLIP_KEY);
        mShowHwScreenUpdates = findAndInitSwitchPref(SHOW_HW_SCREEN_UPDATES_KEY);
        mShowHwLayersUpdates = findAndInitSwitchPref(SHOW_HW_LAYERS_UPDATES_KEY);
        mDebugLayout = findAndInitSwitchPref(DEBUG_LAYOUT_KEY);
        mForceRtlLayout = findAndInitSwitchPref(FORCE_RTL_LAYOUT_KEY);
        mDebugHwOverdraw = addListPreference(DEBUG_HW_OVERDRAW_KEY);
        mWifiDisplayCertification = findAndInitSwitchPref(WIFI_DISPLAY_CERTIFICATION_KEY);
        mWifiVerboseLogging = findAndInitSwitchPref(WIFI_VERBOSE_LOGGING_KEY);
        mWifiAggressiveHandover = findAndInitSwitchPref(WIFI_AGGRESSIVE_HANDOVER_KEY);
        mWifiAllowScansWithTraffic = findAndInitSwitchPref(WIFI_ALLOW_SCAN_WITH_TRAFFIC_KEY);
        mMobileDataAlwaysOn = findAndInitSwitchPref(MOBILE_DATA_ALWAYS_ON);
        mLogdSize = addListPreference(SELECT_LOGD_SIZE_KEY);
        if ("1".equals(SystemProperties.get("ro.debuggable", "0"))) {
            mLogpersist = addListPreference(SELECT_LOGPERSIST_KEY);
        } else {
            mLogpersist = (ListPreference) findPreference(SELECT_LOGPERSIST_KEY);
            if (mLogpersist != null) {
                mLogpersist.setEnabled(false);
                if (debugDebuggingCategory != null) {
                    debugDebuggingCategory.removePreference(mLogpersist);
                }
            }
            mLogpersist = null;
        }
        mUsbConfiguration = addListPreference(USB_CONFIGURATION_KEY);
        mWebViewProvider = addListPreference(WEBVIEW_PROVIDER_KEY);
        mWebViewMultiprocess = findAndInitSwitchPref(WEBVIEW_MULTIPROCESS_KEY);
        mBluetoothDisableAbsVolume = findAndInitSwitchPref(BLUETOOTH_DISABLE_ABSOLUTE_VOLUME_KEY);

        mWindowAnimationScale = addListPreference(WINDOW_ANIMATION_SCALE_KEY);
        mTransitionAnimationScale = addListPreference(TRANSITION_ANIMATION_SCALE_KEY);
        mAnimatorDurationScale = addListPreference(ANIMATOR_DURATION_SCALE_KEY);
        mOverlayDisplayDevices = addListPreference(OVERLAY_DISPLAY_DEVICES_KEY);
        mSimulateColorSpace = addListPreference(SIMULATE_COLOR_SPACE);
        mUSBAudio = findAndInitSwitchPref(USB_AUDIO_KEY);
        mForceResizable = findAndInitSwitchPref(FORCE_RESIZABLE_KEY);

        mImmediatelyDestroyActivities = (SwitchPreference) findPreference(
                IMMEDIATELY_DESTROY_ACTIVITIES_KEY);
        mAllPrefs.add(mImmediatelyDestroyActivities);
        mResetSwitchPrefs.add(mImmediatelyDestroyActivities);

        mAppProcessLimit = addListPreference(APP_PROCESS_LIMIT_KEY);

        mShowAllANRs = (SwitchPreference) findPreference(
                SHOW_ALL_ANRS_KEY);
        mAllPrefs.add(mShowAllANRs);
        mResetSwitchPrefs.add(mShowAllANRs);

        Preference hdcpChecking = findPreference(HDCP_CHECKING_KEY);
        if (hdcpChecking != null) {
            mAllPrefs.add(hdcpChecking);
            removePreferenceForProduction(hdcpChecking);
        }

        PreferenceScreen convertFbePreference =
            (PreferenceScreen) findPreference(KEY_CONVERT_FBE);

        try {
            IBinder service = ServiceManager.getService("mount");
            IMountService mountService = IMountService.Stub.asInterface(service);
            if (!mountService.isConvertibleToFBE()) {
                removePreference(KEY_CONVERT_FBE);
            } else if ("file".equals(SystemProperties.get("ro.crypto.type", "none"))) {
                convertFbePreference.setEnabled(false);
                convertFbePreference.setSummary(getResources()
                                   .getString(R.string.convert_to_file_encryption_done));
            }
        } catch(RemoteException e) {
            removePreference(KEY_CONVERT_FBE);
        }

        mOtaDisableAutomaticUpdate = findAndInitSwitchPref(OTA_DISABLE_AUTOMATIC_UPDATE_KEY);
        if (!SystemProperties.getBoolean("ro.build.ab_update", false)) {
            removePreference(mOtaDisableAutomaticUpdate);
            mOtaDisableAutomaticUpdate = null;
        }

        mColorModePreference = (ColorModePreference) findPreference(KEY_COLOR_MODE);
        mColorModePreference.updateCurrentAndSupported();
        if (mColorModePreference.getColorModeCount() < 2) {
            removePreference(KEY_COLOR_MODE);
            mColorModePreference = null;
        }
        updateWebViewProviderOptions();

        mColorTemperaturePreference = (SwitchPreference) findPreference(COLOR_TEMPERATURE_KEY);
        if (getResources().getBoolean(R.bool.config_enableColorTemperature)) {
            mAllPrefs.add(mColorTemperaturePreference);
            mResetSwitchPrefs.add(mColorTemperaturePreference);
        } else {
            removePreference(COLOR_TEMPERATURE_KEY);
            mColorTemperaturePreference = null;
        }

        mRootAccess = (ListPreference) findPreference(ROOT_ACCESS_KEY);
        mRootAccess.setOnPreferenceChangeListener(this);

        mRootAppops = (Preference) findPreference(ROOT_APPOPS_KEY);
        mRootAppops.setOnPreferenceClickListener(this);

        if (!removeRootOptionsIfRequired()) {
            mAllPrefs.add(mRootAccess);
            mAllPrefs.add(mRootAppops);
        }

        mDevelopmentTools = (PreferenceScreen) findPreference(DEVELOPMENT_TOOLS);
        mAllPrefs.add(mDevelopmentTools);
    }

    private ListPreference addListPreference(String prefKey) {
        ListPreference pref = (ListPreference) findPreference(prefKey);
        mAllPrefs.add(pref);
        pref.setOnPreferenceChangeListener(this);
        return pref;
    }

    private void disableForUser(Preference pref) {
        if (pref != null) {
            pref.setEnabled(false);
            mDisabledPrefs.add(pref);
        }
    }

    private SwitchPreference findAndInitSwitchPref(String key) {
        SwitchPreference pref = (SwitchPreference) findPreference(key);
        if (pref == null) {
            throw new IllegalArgumentException("Cannot find preference with key = " + key);
        }
        mAllPrefs.add(pref);
        mResetSwitchPrefs.add(pref);
        return pref;
    }

    private boolean removeRootOptionsIfRequired() {
        // user builds don't get root, and eng always gets root
        if (!(Build.IS_DEBUGGABLE || "eng".equals(Build.TYPE))) {
            if (mRootAccess != null) {
                getPreferenceScreen().removePreference(mRootAccess);
                return true;
            }
        }

        return false;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        final SettingsActivity activity = (SettingsActivity) getActivity();

        mSwitchBar = activity.getSwitchBar();
       if (mUnavailable) {
            mSwitchBar.setEnabled(false);
            return;
        }

        mSwitchBar.addOnSwitchChangeListener(this);
    }

    private boolean removePreferenceForProduction(Preference preference) {
        if ("user".equals(Build.TYPE)) {
            removePreference(preference);
            return true;
        }
        return false;
    }

    private void removePreference(Preference preference) {
        getPreferenceScreen().removePreference(preference);
        mAllPrefs.remove(preference);
        mResetSwitchPrefs.remove(preference);
    }

    private void setPrefsEnabledState(boolean enabled) {
        for (int i = 0; i < mAllPrefs.size(); i++) {
            Preference pref = mAllPrefs.get(i);
            pref.setEnabled(enabled && !mDisabledPrefs.contains(pref));
        }
        updateAllOptions();
    }

    @Override
    public void onResume() {
        super.onResume();

        if (mUnavailable) {
            // Show error message
            if (!isUiRestrictedByOnlyAdmin()) {
                getEmptyTextView().setText(R.string.development_settings_not_available);
            }
            getPreferenceScreen().removeAll();
            return;
        }

        // A DeviceAdmin has specified a maximum time until the device
        // will lock...  in this case we can't allow the user to turn
        // on "stay awake when plugged in" because that would defeat the
        // restriction.
        final EnforcedAdmin admin = RestrictedLockUtils.checkIfMaximumTimeToLockIsSet(
                getActivity());
        mKeepScreenOn.setDisabledByAdmin(admin);
        if (admin == null) {
            mDisabledPrefs.remove(mKeepScreenOn);
        } else {
            mDisabledPrefs.add(mKeepScreenOn);
        }

        final ContentResolver cr = getActivity().getContentResolver();
        mLastEnabledState = Settings.Global.getInt(cr,
                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0;
        mSwitchBar.setChecked(mLastEnabledState);
        setPrefsEnabledState(mLastEnabledState);

        if (mHaveDebugSettings && !mLastEnabledState) {
            // Overall debugging is disabled, but there are some debug
            // settings that are enabled.  This is an invalid state.  Switch
            // to debug settings being enabled, so the user knows there is
            // stuff enabled and can turn it all off if they want.
            Settings.Global.putInt(getActivity().getContentResolver(),
                    Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 1);
            mLastEnabledState = true;
            mSwitchBar.setChecked(mLastEnabledState);
            setPrefsEnabledState(mLastEnabledState);
        }
        mSwitchBar.show();

        if (mColorModePreference != null) {
            mColorModePreference.startListening();
            mColorModePreference.updateCurrentAndSupported();
        }
    }

    @Override
    public void onPause() {
        super.onPause();
        if (mColorModePreference != null) {
            mColorModePreference.stopListening();
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        IntentFilter filter = new IntentFilter();
        filter.addAction(UsbManager.ACTION_USB_STATE);
        if (getActivity().registerReceiver(mUsbReceiver, filter) == null) {
            updateUsbConfigurationValues();
        }
        return super.onCreateView(inflater, container, savedInstanceState);
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        if (mUnavailable) {
            return;
        }
        mSwitchBar.removeOnSwitchChangeListener(this);
        mSwitchBar.hide();
        getActivity().unregisterReceiver(mUsbReceiver);
    }

    void updateSwitchPreference(SwitchPreference switchPreference, boolean value) {
        switchPreference.setChecked(value);
        mHaveDebugSettings |= value;
    }

    private void updateAllOptions() {
        final Context context = getActivity();
        final ContentResolver cr = context.getContentResolver();
        mHaveDebugSettings = false;
        updateSwitchPreference(mEnableAdb, Settings.Global.getInt(cr,
                Settings.Global.ADB_ENABLED, 0) != 0);
        if (mEnableTerminal != null) {
            updateSwitchPreference(mEnableTerminal,
                    context.getPackageManager().getApplicationEnabledSetting(TERMINAL_APP_PACKAGE)
                            == PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
        }
        updateSwitchPreference(mBugreportInPower, Settings.Secure.getInt(cr,
                Settings.Global.BUGREPORT_IN_POWER_MENU, 0) != 0);
        updateSwitchPreference(mKeepScreenOn, Settings.Global.getInt(cr,
                Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0) != 0);
        updateSwitchPreference(mBtHciSnoopLog, Settings.Secure.getInt(cr,
                Settings.Secure.BLUETOOTH_HCI_LOG, 0) != 0);
        updateSwitchPreference(mDebugViewAttributes, Settings.Global.getInt(cr,
                Settings.Global.DEBUG_VIEW_ATTRIBUTES, 0) != 0);
        updateSwitchPreference(mForceAllowOnExternal, Settings.Global.getInt(cr,
                Settings.Global.FORCE_ALLOW_ON_EXTERNAL, 0) != 0);
        updateHdcpValues();
        updatePasswordSummary();
        updateDebuggerOptions();
        updateMockLocation();
        updateStrictModeVisualOptions();
        updatePointerLocationOptions();
        updateShowTouchesOptions();
        updateFlingerOptions();
        updateHardwareUiOptions();
        updateMsaaOptions();
        updateTrackFrameTimeOptions();
        updateShowNonRectClipOptions();
        updateShowHwScreenUpdatesOptions();
        updateShowHwLayersUpdatesOptions();
        updateDebugHwOverdrawOptions();
        updateDebugLayoutOptions();
        updateAnimationScaleOptions();
        updateOverlayDisplayDevicesOptions();
        updateImmediatelyDestroyActivitiesOptions();
        updateAppProcessLimitOptions();
        updateShowAllANRsOptions();
        updateVerifyAppsOverUsbOptions();
        if (mOtaDisableAutomaticUpdate != null) {
            updateOtaDisableAutomaticUpdateOptions();
        }
        updateBugreportOptions();
        updateForceRtlOptions();
        updateLogdSizeValues();
        updateLogpersistValues();
        updateWifiDisplayCertificationOptions();
        updateWifiVerboseLoggingOptions();
        updateWifiAggressiveHandoverOptions();
        updateWifiAllowScansWithTrafficOptions();
        updateMobileDataAlwaysOnOptions();
        updateSimulateColorSpace();
        updateUSBAudioOptions();
        updateForceResizableOptions();
        updateWebViewMultiprocessOptions();
        updateWebViewProviderOptions();
        updateOemUnlockOptions();
        if (mColorTemperaturePreference != null) {
            updateColorTemperature();
        }
        updateBluetoothDisableAbsVolumeOptions();
        updateRootAccessOptions();
        updateAdbOverNetwork();
    }

    private void updateAdbOverNetwork() {
        int port = CMSettings.Secure.getInt(getActivity().getContentResolver(),
                CMSettings.Secure.ADB_PORT, 0);
        boolean enabled = port > 0;

        updateSwitchPreference(mAdbOverNetwork, enabled);

        WifiInfo wifiInfo = null;

        if (enabled) {
            IWifiManager wifiManager = IWifiManager.Stub.asInterface(
                    ServiceManager.getService(Context.WIFI_SERVICE));
            try {
                wifiInfo = wifiManager.getConnectionInfo();
            } catch (RemoteException e) {
                Log.e(TAG, "wifiManager, getConnectionInfo()", e);
            }
        }

        if (wifiInfo != null) {
            String hostAddress = NetworkUtils.intToInetAddress(
                    wifiInfo.getIpAddress()).getHostAddress();
            mAdbOverNetwork.setSummary(hostAddress + ":" + String.valueOf(port));
        } else {
            mAdbOverNetwork.setSummary(R.string.adb_over_network_summary);
        }
    }

    private void resetDangerousOptions() {
        mDontPokeProperties = true;
        for (int i=0; i< mResetSwitchPrefs.size(); i++) {
            SwitchPreference cb = mResetSwitchPrefs.get(i);
            if (cb.isChecked()) {
                cb.setChecked(false);
                onPreferenceTreeClick(cb);
            }
        }
        resetDebuggerOptions();
        writeLogpersistOption(null, true);
        writeLogdSizeOption(null);
        resetRootAccessOptions();
        resetAdbNotifyOptions();
        writeAnimationScaleOption(0, mWindowAnimationScale, null);
        writeAnimationScaleOption(1, mTransitionAnimationScale, null);
        writeAnimationScaleOption(2, mAnimatorDurationScale, null);
        // Only poke the color space setting if we control it.
        if (usingDevelopmentColorSpace()) {
            writeSimulateColorSpace(-1);
        }
        writeOverlayDisplayDevicesOptions(null);
        writeAppProcessLimitOptions(null);
        mHaveDebugSettings = false;
        updateAllOptions();
        mDontPokeProperties = false;
        pokeSystemProperties();
    }

    private void updateWebViewProviderOptions() {
        try {
            WebViewProviderInfo[] providers = mWebViewUpdateService.getValidWebViewPackages();
            if (providers == null) {
                Log.e(TAG, "No WebView providers available");
                return;
            }
            ArrayList<String> options = new ArrayList<String>();
            ArrayList<String> values = new ArrayList<String>();
            for(int n = 0; n < providers.length; n++) {
                if (Utils.isPackageEnabled(getActivity(), providers[n].packageName)) {
                    options.add(providers[n].description);
                    values.add(providers[n].packageName);
                }
            }
            mWebViewProvider.setEntries(options.toArray(new String[options.size()]));
            mWebViewProvider.setEntryValues(values.toArray(new String[values.size()]));

            String value = mWebViewUpdateService.getCurrentWebViewPackageName();
            if (value == null) {
                value = "";
            }

            for (int i = 0; i < values.size(); i++) {
                if (value.contentEquals(values.get(i))) {
                    mWebViewProvider.setValueIndex(i);
                    return;
                }
            }
        } catch(RemoteException e) {
        }
    }

    private void updateWebViewMultiprocessOptions() {
        updateSwitchPreference(mWebViewMultiprocess,
                Settings.Global.getInt(getActivity().getContentResolver(),
                        Settings.Global.WEBVIEW_MULTIPROCESS, 0) != 0);
    }

    private void writeWebViewMultiprocessOptions() {
        boolean value = mWebViewMultiprocess.isChecked();
        Settings.Global.putInt(getActivity().getContentResolver(),
                Settings.Global.WEBVIEW_MULTIPROCESS, value ? 1 : 0);

        try {
            String wv_package = mWebViewUpdateService.getCurrentWebViewPackageName();
            ActivityManagerNative.getDefault().killPackageDependents(
                    wv_package, UserHandle.USER_ALL);
        } catch(RemoteException e) {
        }
    }

   private void updateRootAccessOptions() {
        String value = SystemProperties.get(ROOT_ACCESS_PROPERTY, "0");
        mRootAccess.setValue(value);
        mRootAccess.setSummary(getResources()
                .getStringArray(R.array.root_access_entries)[Integer.valueOf(value)]);

        if (mRootAppops != null) {
            mRootAppops.setEnabled(isRootForAppsEnabled());
        }
    }

    public static boolean isRootForAppsEnabled() {
        int value = SystemProperties.getInt(ROOT_ACCESS_PROPERTY, 0);
        boolean daemonState =
                SystemProperties.get("init.svc.su_daemon", "absent").equals("running");
        return daemonState && (value == 1 || value == 3);
    }

    private void writeRootAccessOptions(Object newValue) {
        String oldValue = SystemProperties.get(ROOT_ACCESS_PROPERTY, "0");
        SystemProperties.set(ROOT_ACCESS_PROPERTY, newValue.toString());
        if (Integer.valueOf(newValue.toString()) < 2 && !oldValue.equals(newValue)
                && "1".equals(SystemProperties.get("service.adb.root", "0"))) {
            SystemProperties.set("service.adb.root", "0");
            Settings.Secure.putInt(getActivity().getContentResolver(),
                    Settings.Secure.ADB_ENABLED, 0);
            Settings.Secure.putInt(getActivity().getContentResolver(),
                    Settings.Secure.ADB_ENABLED, 1);
        }
        updateRootAccessOptions();
    }

    private void resetRootAccessOptions() {
        String oldValue = SystemProperties.get(ROOT_ACCESS_PROPERTY, "0");
        SystemProperties.set(ROOT_ACCESS_PROPERTY, "0");
        if (!oldValue.equals("0") && "1".equals(SystemProperties.get("service.adb.root", "0"))) {
            SystemProperties.set("service.adb.root", "0");
            Settings.Secure.putInt(getActivity().getContentResolver(),
                    Settings.Secure.ADB_ENABLED, 0);
            Settings.Secure.putInt(getActivity().getContentResolver(),
                    Settings.Secure.ADB_ENABLED, 1);
        }
        updateRootAccessOptions();
    }

    private void resetAdbNotifyOptions() {
        CMSettings.Secure.putInt(getActivity().getContentResolver(),
                CMSettings.Secure.ADB_NOTIFY, 1);
    }

    private void updateHdcpValues() {
        ListPreference hdcpChecking = (ListPreference) findPreference(HDCP_CHECKING_KEY);
        if (hdcpChecking != null) {
            String currentValue = SystemProperties.get(HDCP_CHECKING_PROPERTY);
            String[] values = getResources().getStringArray(R.array.hdcp_checking_values);
            String[] summaries = getResources().getStringArray(R.array.hdcp_checking_summaries);
            int index = 1; // Defaults to drm-only. Needs to match with R.array.hdcp_checking_values
            for (int i = 0; i < values.length; i++) {
                if (currentValue.equals(values[i])) {
                    index = i;
                    break;
                }
            }
            hdcpChecking.setValue(values[index]);
            hdcpChecking.setSummary(summaries[index]);
            hdcpChecking.setOnPreferenceChangeListener(this);
        }
    }

    private void updatePasswordSummary() {
        try {
            if (mBackupManager == null) {
               Log.e(TAG, "Backup Manager is unavailable!");
               return;
            }
            if (mBackupManager.hasBackupPassword()) {
                mPassword.setSummary(R.string.local_backup_password_summary_change);
            } else {
                mPassword.setSummary(R.string.local_backup_password_summary_none);
            }
        } catch (RemoteException e) {
            // Not much we can do here
        }
    }

    private void writeBtHciSnoopLogOptions() {
        BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
        adapter.configHciSnoopLog(mBtHciSnoopLog.isChecked());
        Settings.Secure.putInt(getActivity().getContentResolver(),
                Settings.Secure.BLUETOOTH_HCI_LOG,
                mBtHciSnoopLog.isChecked() ? 1 : 0);
    }

    private boolean writeWebViewProviderOptions(Object newValue) {
        try {
            String updatedProvider = mWebViewUpdateService.changeProviderAndSetting(
                    newValue == null ? "" : newValue.toString());
            updateWebViewProviderOptions();
            return newValue != null && newValue.equals(updatedProvider);
        } catch(RemoteException e) {
        }
        return false;
    }

    private void writeDebuggerOptions() {
        try {
            ActivityManagerNative.getDefault().setDebugApp(
                mDebugApp, mWaitForDebugger.isChecked(), true);
        } catch (RemoteException ex) {
        }
    }

    private void writeMockLocation() {
        AppOpsManager appOpsManager = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE);

        // Disable the app op of the previous mock location app if such.
        List<PackageOps> packageOps = appOpsManager.getPackagesForOps(MOCK_LOCATION_APP_OPS);
        if (packageOps != null) {
            // Should be one but in case we are in a bad state due to use of command line tools.
            for (PackageOps packageOp : packageOps) {
                if (packageOp.getOps().get(0).getMode() != AppOpsManager.MODE_ERRORED) {
                    String oldMockLocationApp = packageOp.getPackageName();
                    try {
                        ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(
                                oldMockLocationApp, PackageManager.GET_DISABLED_COMPONENTS);
                        appOpsManager.setMode(AppOpsManager.OP_MOCK_LOCATION, ai.uid,
                                oldMockLocationApp, AppOpsManager.MODE_ERRORED);
                    } catch (NameNotFoundException e) {
                        /* ignore */
                    }
                }
            }
        }

        // Enable the app op of the new mock location app if such.
        if (!TextUtils.isEmpty(mMockLocationApp)) {
            try {
                ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(
                        mMockLocationApp, PackageManager.GET_DISABLED_COMPONENTS);
                appOpsManager.setMode(AppOpsManager.OP_MOCK_LOCATION, ai.uid,
                        mMockLocationApp, AppOpsManager.MODE_ALLOWED);
            } catch (NameNotFoundException e) {
                /* ignore */
            }
        }
    }

    private static void resetDebuggerOptions() {
        try {
            ActivityManagerNative.getDefault().setDebugApp(
                    null, false, true);
        } catch (RemoteException ex) {
        }
    }

    private void updateDebuggerOptions() {
        mDebugApp = Settings.Global.getString(
                getActivity().getContentResolver(), Settings.Global.DEBUG_APP);
        updateSwitchPreference(mWaitForDebugger, Settings.Global.getInt(
                getActivity().getContentResolver(), Settings.Global.WAIT_FOR_DEBUGGER, 0) != 0);
        if (mDebugApp != null && mDebugApp.length() > 0) {
            String label;
            try {
                ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(mDebugApp,
                        PackageManager.GET_DISABLED_COMPONENTS);
                CharSequence lab = getActivity().getPackageManager().getApplicationLabel(ai);
                label = lab != null ? lab.toString() : mDebugApp;
            } catch (PackageManager.NameNotFoundException e) {
                label = mDebugApp;
            }
            mDebugAppPref.setSummary(getResources().getString(R.string.debug_app_set, label));
            mWaitForDebugger.setEnabled(true);
            mHaveDebugSettings = true;
        } else {
            mDebugAppPref.setSummary(getResources().getString(R.string.debug_app_not_set));
            mWaitForDebugger.setEnabled(false);
        }
    }

    private void updateMockLocation() {
        AppOpsManager appOpsManager = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE);

        List<PackageOps> packageOps = appOpsManager.getPackagesForOps(MOCK_LOCATION_APP_OPS);
        if (packageOps != null) {
            for (PackageOps packageOp : packageOps) {
                if (packageOp.getOps().get(0).getMode() == AppOpsManager.MODE_ALLOWED) {
                    mMockLocationApp = packageOps.get(0).getPackageName();
                    break;
                }
            }
        }

        if (!TextUtils.isEmpty(mMockLocationApp)) {
            String label = mMockLocationApp;
            try {
                ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(
                        mMockLocationApp, PackageManager.GET_DISABLED_COMPONENTS);
                CharSequence appLabel = getPackageManager().getApplicationLabel(ai);
                if (appLabel != null) {
                    label = appLabel.toString();
                }
            } catch (PackageManager.NameNotFoundException e) {
                /* ignore */
            }

            mMockLocationAppPref.setSummary(getString(R.string.mock_location_app_set, label));
            mHaveDebugSettings = true;
        } else {
            mMockLocationAppPref.setSummary(getString(R.string.mock_location_app_not_set));
        }
    }

    private void updateVerifyAppsOverUsbOptions() {
        updateSwitchPreference(mVerifyAppsOverUsb, Settings.Global.getInt(getActivity().getContentResolver(),
                Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) != 0);
        mVerifyAppsOverUsb.setEnabled(enableVerifierSetting());
    }

    private void writeVerifyAppsOverUsbOptions() {
        Settings.Global.putInt(getActivity().getContentResolver(),
                Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB,
                mVerifyAppsOverUsb.isChecked() ? 1 : 0);
    }

    private void updateOtaDisableAutomaticUpdateOptions() {
        // We use the "disabled status" in code, but show the opposite text
        // "Automatic system updates" on screen. So a value 0 indicates the
        // automatic update is enabled.
        updateSwitchPreference(mOtaDisableAutomaticUpdate, Settings.Global.getInt(
                getActivity().getContentResolver(),
                Settings.Global.OTA_DISABLE_AUTOMATIC_UPDATE, 0) != 1);
    }

    private void writeOtaDisableAutomaticUpdateOptions() {
        // We use the "disabled status" in code, but show the opposite text
        // "Automatic system updates" on screen. So a value 0 indicates the
        // automatic update is enab…