src/com/android/settings/DevelopmentSettings.java

   1 /*
   2  * Copyright (C) 2008 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 com.android.settings;
  18
  19 import android.app.Activity;
  20 import android.app.ActivityManagerNative;
  21 import android.app.AlertDialog;
  22 import android.app.Dialog;
  23 import android.app.admin.DevicePolicyManager;
  24 import android.app.backup.IBackupManager;
  25 import android.bluetooth.BluetoothAdapter;
  26 import android.content.BroadcastReceiver;
  27 import android.content.ContentResolver;
  28 import android.content.Context;
  29 import android.content.DialogInterface;
  30 import android.content.Intent;
  31 import android.content.IntentFilter;
  32 import android.content.pm.ApplicationInfo;
  33 import android.content.pm.PackageManager;
  34 import android.content.pm.PackageManager.NameNotFoundException;
  35 import android.content.pm.ResolveInfo;
  36 import android.content.res.Resources;
  37 import android.hardware.usb.IUsbManager;
  38 import android.hardware.usb.UsbManager;
  39 import android.net.wifi.WifiManager;
  40 import android.os.AsyncTask;
  41 import android.os.BatteryManager;
  42 import android.os.Build;
  43 import android.os.Bundle;
  44 import android.os.IBinder;
  45 import android.os.Parcel;
  46 import android.os.RemoteException;
  47 import android.os.ServiceManager;
  48 import android.os.StrictMode;
  49 import android.os.SystemProperties;
  50 import android.os.UserHandle;
  51 import android.os.UserManager;
  52 import android.preference.ListPreference;
  53 import android.preference.Preference;
  54 import android.preference.Preference.OnPreferenceChangeListener;
  55 import android.preference.PreferenceGroup;
  56 import android.preference.PreferenceScreen;
  57 import android.preference.SwitchPreference;
  58 import android.provider.SearchIndexableResource;
  59 import android.provider.Settings;
  60 import android.text.TextUtils;
  61 import android.util.Log;
  62 import android.view.HardwareRenderer;
  63 import android.view.IWindowManager;
  64 import android.view.LayoutInflater;
  65 import android.view.View;
  66 import android.view.ViewGroup;
  67 import android.view.accessibility.AccessibilityManager;
  68 import android.widget.Switch;
  69 import android.widget.TextView;
  70
  71 import com.android.settings.search.BaseSearchIndexProvider;
  72 import com.android.settings.search.Indexable;
  73 import com.android.settings.widget.SwitchBar;
  74
  75 import java.util.ArrayList;
  76 import java.util.Arrays;
  77 import java.util.HashSet;
  78 import java.util.List;
  79
  80 /*
  81  * Displays preferences for application developers.
  82  */
  83 public class DevelopmentSettings extends SettingsPreferenceFragment
  84         implements DialogInterface.OnClickListener, DialogInterface.OnDismissListener,
  85                 OnPreferenceChangeListener, SwitchBar.OnSwitchChangeListener, Indexable {
  86     private static final String TAG = "DevelopmentSettings";
  87
  88     /**
  89      * Preference file were development settings prefs are stored.
  90      */
  91     public static final String PREF_FILE = "development";
  92
  93     /**
  94      * Whether to show the development settings to the user.  Default is false.
  95      */
  96     public static final String PREF_SHOW = "show";
  97
  98     private static final String ENABLE_ADB = "enable_adb";
  99     private static final String CLEAR_ADB_KEYS = "clear_adb_keys";
 100     private static final String ENABLE_TERMINAL = "enable_terminal";
 101     private static final String KEEP_SCREEN_ON = "keep_screen_on";
 102     private static final String BT_HCI_SNOOP_LOG = "bt_hci_snoop_log";
 103     private static final String ENABLE_OEM_UNLOCK = "oem_unlock_enable";
 104     private static final String ALLOW_MOCK_LOCATION = "allow_mock_location";
 105     private static final String HDCP_CHECKING_KEY = "hdcp_checking";
 106     private static final String HDCP_CHECKING_PROPERTY = "persist.sys.hdcp_checking";
 107     private static final String LOCAL_BACKUP_PASSWORD = "local_backup_password";
 108     private static final String HARDWARE_UI_PROPERTY = "persist.sys.ui.hw";
 109     private static final String MSAA_PROPERTY = "debug.egl.force_msaa";
 110     private static final String BUGREPORT = "bugreport";
 111     private static final String BUGREPORT_IN_POWER_KEY = "bugreport_in_power";
 112     private static final String OPENGL_TRACES_PROPERTY = "debug.egl.trace";
 113
 114     private static final String DEBUG_APP_KEY = "debug_app";
 115     private static final String WAIT_FOR_DEBUGGER_KEY = "wait_for_debugger";
 116     private static final String VERIFY_APPS_OVER_USB_KEY = "verify_apps_over_usb";
 117     private static final String DEBUG_VIEW_ATTRIBUTES =  "debug_view_attributes";
 118     private static final String STRICT_MODE_KEY = "strict_mode";
 119     private static final String POINTER_LOCATION_KEY = "pointer_location";
 120     private static final String SHOW_TOUCHES_KEY = "show_touches";
 121     private static final String SHOW_SCREEN_UPDATES_KEY = "show_screen_updates";
 122     private static final String DISABLE_OVERLAYS_KEY = "disable_overlays";
 123     private static final String SIMULATE_COLOR_SPACE = "simulate_color_space";
 124     private static final String USE_AWESOMEPLAYER_KEY = "use_awesomeplayer";
 125     private static final String USB_AUDIO_KEY = "usb_audio";
 126     private static final String USE_AWESOMEPLAYER_PROPERTY = "persist.sys.media.use-awesome";
 127     private static final String SHOW_CPU_USAGE_KEY = "show_cpu_usage";
 128     private static final String FORCE_HARDWARE_UI_KEY = "force_hw_ui";
 129     private static final String FORCE_MSAA_KEY = "force_msaa";
 130     private static final String TRACK_FRAME_TIME_KEY = "track_frame_time";
 131     private static final String SHOW_NON_RECTANGULAR_CLIP_KEY = "show_non_rect_clip";
 132     private static final String SHOW_HW_SCREEN_UPDATES_KEY = "show_hw_screen_udpates";
 133     private static final String SHOW_HW_LAYERS_UPDATES_KEY = "show_hw_layers_udpates";
 134     private static final String DEBUG_HW_OVERDRAW_KEY = "debug_hw_overdraw";
 135     private static final String DEBUG_LAYOUT_KEY = "debug_layout";
 136     private static final String FORCE_RTL_LAYOUT_KEY = "force_rtl_layout_all_locales";
 137     private static final String WINDOW_ANIMATION_SCALE_KEY = "window_animation_scale";
 138     private static final String TRANSITION_ANIMATION_SCALE_KEY = "transition_animation_scale";
 139     private static final String ANIMATOR_DURATION_SCALE_KEY = "animator_duration_scale";
 140     private static final String OVERLAY_DISPLAY_DEVICES_KEY = "overlay_display_devices";
 141     private static final String ENABLE_MULTI_WINDOW_KEY = "enable_multi_window";
 142     private static final String DEBUG_DEBUGGING_CATEGORY_KEY = "debug_debugging_category";
 143     private static final String DEBUG_APPLICATIONS_CATEGORY_KEY = "debug_applications_category";
 144     private static final String SELECT_LOGD_SIZE_KEY = "select_logd_size";
 145     private static final String SELECT_LOGD_SIZE_PROPERTY = "persist.logd.size";
 146     private static final String SELECT_LOGD_DEFAULT_SIZE_PROPERTY = "ro.logd.size";
 147
 148     private static final String DEBUG_NETWORKING_CATEGORY_KEY = "debug_networking_category";
 149     private static final String WIFI_DISPLAY_CERTIFICATION_KEY = "wifi_display_certification";
 150     private static final String WIFI_VERBOSE_LOGGING_KEY = "wifi_verbose_logging";
 151     private static final String WIFI_AGGRESSIVE_HANDOVER_KEY = "wifi_aggressive_handover";
 152     private static final String WIFI_ALLOW_SCAN_WITH_TRAFFIC_KEY = "wifi_allow_scan_with_traffic";
 153     private static final String USB_CONFIGURATION_KEY = "select_usb_configuration";
 154     private static final String SELECT_USB_CONFIGURATION_PROPERTY = "sys.usb.config";
 155     private static final String WIFI_LEGACY_DHCP_CLIENT_KEY = "legacy_dhcp_client";
 156
 157     private static final String OPENGL_TRACES_KEY = "enable_opengl_traces";
 158
 159     private static final String IMMEDIATELY_DESTROY_ACTIVITIES_KEY
 160             = "immediately_destroy_activities";
 161     private static final String APP_PROCESS_LIMIT_KEY = "app_process_limit";
 162
 163     private static final String SHOW_ALL_ANRS_KEY = "show_all_anrs";
 164
 165     private static final String PROCESS_STATS = "proc_stats";
 166
 167     private static final String PACKAGE_MIME_TYPE = "application/vnd.android.package-archive";
 168
 169     private static final String TERMINAL_APP_PACKAGE = "com.android.terminal";
 170
 171     private static final int RESULT_DEBUG_APP = 1000;
 172
 173     private static final String PERSISTENT_DATA_BLOCK_PROP = "ro.frp.pst";
 174
 175     private static final int REQUEST_CODE_ENABLE_OEM_UNLOCK = 0;
 176
 177     private static String DEFAULT_LOG_RING_BUFFER_SIZE_IN_BYTES = "262144"; // 256K
 178
 179     private static final String MULTI_WINDOW_SYSTEM_PROPERTY = "persist.sys.debug.multi_window";
 180     private IWindowManager mWindowManager;
 181     private IBackupManager mBackupManager;
 182     private DevicePolicyManager mDpm;
 183     private UserManager mUm;
 184     private WifiManager mWifiManager;
 185
 186     private SwitchBar mSwitchBar;
 187     private boolean mLastEnabledState;
 188     private boolean mHaveDebugSettings;
 189     private boolean mDontPokeProperties;
 190
 191     private SwitchPreference mEnableAdb;
 192     private Preference mClearAdbKeys;
 193     private SwitchPreference mEnableTerminal;
 194     private Preference mBugreport;
 195     private SwitchPreference mBugreportInPower;
 196     private SwitchPreference mKeepScreenOn;
 197     private SwitchPreference mBtHciSnoopLog;
 198     private SwitchPreference mEnableOemUnlock;
 199     private SwitchPreference mAllowMockLocation;
 200     private SwitchPreference mDebugViewAttributes;
 201
 202     private PreferenceScreen mPassword;
 203     private String mDebugApp;
 204     private Preference mDebugAppPref;
 205     private SwitchPreference mWaitForDebugger;
 206     private SwitchPreference mVerifyAppsOverUsb;
 207     private SwitchPreference mWifiDisplayCertification;
 208     private SwitchPreference mWifiVerboseLogging;
 209     private SwitchPreference mWifiAggressiveHandover;
 210     private SwitchPreference mLegacyDhcpClient;
 211
 212     private SwitchPreference mWifiAllowScansWithTraffic;
 213     private SwitchPreference mStrictMode;
 214     private SwitchPreference mPointerLocation;
 215     private SwitchPreference mShowTouches;
 216     private SwitchPreference mShowScreenUpdates;
 217     private SwitchPreference mDisableOverlays;
 218     private SwitchPreference mEnableMultiWindow;
 219     private SwitchPreference mShowCpuUsage;
 220     private SwitchPreference mForceHardwareUi;
 221     private SwitchPreference mForceMsaa;
 222     private SwitchPreference mShowHwScreenUpdates;
 223     private SwitchPreference mShowHwLayersUpdates;
 224     private SwitchPreference mDebugLayout;
 225     private SwitchPreference mForceRtlLayout;
 226     private ListPreference mDebugHwOverdraw;
 227     private ListPreference mLogdSize;
 228     private ListPreference mUsbConfiguration;
 229     private ListPreference mTrackFrameTime;
 230     private ListPreference mShowNonRectClip;
 231     private ListPreference mWindowAnimationScale;
 232     private ListPreference mTransitionAnimationScale;
 233     private ListPreference mAnimatorDurationScale;
 234     private ListPreference mOverlayDisplayDevices;
 235     private ListPreference mOpenGLTraces;
 236
 237     private ListPreference mSimulateColorSpace;
 238
 239     private SwitchPreference mUseAwesomePlayer;
 240     private SwitchPreference mUSBAudio;
 241     private SwitchPreference mImmediatelyDestroyActivities;
 242
 243     private ListPreference mAppProcessLimit;
 244
 245     private SwitchPreference mShowAllANRs;
 246
 247     private PreferenceScreen mProcessStats;
 248     private final ArrayList<Preference> mAllPrefs = new ArrayList<Preference>();
 249
 250     private final ArrayList<SwitchPreference> mResetSwitchPrefs
 251             = new ArrayList<SwitchPreference>();
 252
 253     private final HashSet<Preference> mDisabledPrefs = new HashSet<Preference>();
 254     // To track whether a confirmation dialog was clicked.
 255     private boolean mDialogClicked;
 256     private Dialog mEnableDialog;
 257     private Dialog mAdbDialog;
 258
 259     private Dialog mAdbKeysDialog;
 260     private boolean mUnavailable;
 261
 262     @Override
 263     public void onCreate(Bundle icicle) {
 264         super.onCreate(icicle);
 265
 266         mWindowManager = IWindowManager.Stub.asInterface(ServiceManager.getService("window"));
 267         mBackupManager = IBackupManager.Stub.asInterface(
 268                 ServiceManager.getService(Context.BACKUP_SERVICE));
 269         mDpm = (DevicePolicyManager)getActivity().getSystemService(Context.DEVICE_POLICY_SERVICE);
 270         mUm = (UserManager) getSystemService(Context.USER_SERVICE);
 271
 272         mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
 273
 274         if (android.os.Process.myUserHandle().getIdentifier() != UserHandle.USER_OWNER
 275                 || mUm.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES)) {
 276             mUnavailable = true;
 277             setPreferenceScreen(new PreferenceScreen(getActivity(), null));
 278             return;
 279         }
 280
 281         addPreferencesFromResource(R.xml.development_prefs);
 282
 283         final PreferenceGroup debugDebuggingCategory = (PreferenceGroup)
 284                 findPreference(DEBUG_DEBUGGING_CATEGORY_KEY);
 285         mEnableAdb = findAndInitSwitchPref(ENABLE_ADB);
 286         mClearAdbKeys = findPreference(CLEAR_ADB_KEYS);
 287         if (!SystemProperties.getBoolean("ro.adb.secure", false)) {
 288             if (debugDebuggingCategory != null) {
 289                 debugDebuggingCategory.removePreference(mClearAdbKeys);
 290             }
 291         }
 292         mAllPrefs.add(mClearAdbKeys);
 293         mEnableTerminal = findAndInitSwitchPref(ENABLE_TERMINAL);
 294         if (!isPackageInstalled(getActivity(), TERMINAL_APP_PACKAGE)) {
 295             debugDebuggingCategory.removePreference(mEnableTerminal);
 296             mEnableTerminal = null;
 297         }
 298
 299         mBugreport = findPreference(BUGREPORT);
 300         mBugreportInPower = findAndInitSwitchPref(BUGREPORT_IN_POWER_KEY);
 301         mKeepScreenOn = findAndInitSwitchPref(KEEP_SCREEN_ON);
 302         mBtHciSnoopLog = findAndInitSwitchPref(BT_HCI_SNOOP_LOG);
 303         mEnableOemUnlock = findAndInitSwitchPref(ENABLE_OEM_UNLOCK);
 304         if (!showEnableOemUnlockPreference()) {
 305             removePreference(mEnableOemUnlock);
 306             mEnableOemUnlock = null;
 307         }
 308         mAllowMockLocation = findAndInitSwitchPref(ALLOW_MOCK_LOCATION);
 309         mDebugViewAttributes = findAndInitSwitchPref(DEBUG_VIEW_ATTRIBUTES);
 310         mPassword = (PreferenceScreen) findPreference(LOCAL_BACKUP_PASSWORD);
 311         mAllPrefs.add(mPassword);
 312
 313
 314         if (!android.os.Process.myUserHandle().equals(UserHandle.OWNER)) {
 315             disableForUser(mEnableAdb);
 316             disableForUser(mClearAdbKeys);
 317             disableForUser(mEnableTerminal);
 318             disableForUser(mPassword);
 319         }
 320
 321         mDebugAppPref = findPreference(DEBUG_APP_KEY);
 322         mAllPrefs.add(mDebugAppPref);
 323         mWaitForDebugger = findAndInitSwitchPref(WAIT_FOR_DEBUGGER_KEY);
 324         mVerifyAppsOverUsb = findAndInitSwitchPref(VERIFY_APPS_OVER_USB_KEY);
 325         if (!showVerifierSetting()) {
 326             if (debugDebuggingCategory != null) {
 327                 debugDebuggingCategory.removePreference(mVerifyAppsOverUsb);
 328             } else {
 329                 mVerifyAppsOverUsb.setEnabled(false);
 330             }
 331         }
 332         mStrictMode = findAndInitSwitchPref(STRICT_MODE_KEY);
 333         mPointerLocation = findAndInitSwitchPref(POINTER_LOCATION_KEY);
 334         mShowTouches = findAndInitSwitchPref(SHOW_TOUCHES_KEY);
 335         mShowScreenUpdates = findAndInitSwitchPref(SHOW_SCREEN_UPDATES_KEY);
 336         mDisableOverlays = findAndInitSwitchPref(DISABLE_OVERLAYS_KEY);
 337         mShowCpuUsage = findAndInitSwitchPref(SHOW_CPU_USAGE_KEY);
 338         mForceHardwareUi = findAndInitSwitchPref(FORCE_HARDWARE_UI_KEY);
 339         mForceMsaa = findAndInitSwitchPref(FORCE_MSAA_KEY);
 340         mTrackFrameTime = addListPreference(TRACK_FRAME_TIME_KEY);
 341         mShowNonRectClip = addListPreference(SHOW_NON_RECTANGULAR_CLIP_KEY);
 342         mShowHwScreenUpdates = findAndInitSwitchPref(SHOW_HW_SCREEN_UPDATES_KEY);
 343         mShowHwLayersUpdates = findAndInitSwitchPref(SHOW_HW_LAYERS_UPDATES_KEY);
 344         mDebugLayout = findAndInitSwitchPref(DEBUG_LAYOUT_KEY);
 345         mForceRtlLayout = findAndInitSwitchPref(FORCE_RTL_LAYOUT_KEY);
 346         mDebugHwOverdraw = addListPreference(DEBUG_HW_OVERDRAW_KEY);
 347         mWifiDisplayCertification = findAndInitSwitchPref(WIFI_DISPLAY_CERTIFICATION_KEY);
 348         mWifiVerboseLogging = findAndInitSwitchPref(WIFI_VERBOSE_LOGGING_KEY);
 349         mWifiAggressiveHandover = findAndInitSwitchPref(WIFI_AGGRESSIVE_HANDOVER_KEY);
 350         mWifiAllowScansWithTraffic = findAndInitSwitchPref(WIFI_ALLOW_SCAN_WITH_TRAFFIC_KEY);
 351         mLegacyDhcpClient = findAndInitSwitchPref(WIFI_LEGACY_DHCP_CLIENT_KEY);
 352         mLogdSize = addListPreference(SELECT_LOGD_SIZE_KEY);
 353         mUsbConfiguration = addListPreference(USB_CONFIGURATION_KEY);
 354
 355         mWindowAnimationScale = addListPreference(WINDOW_ANIMATION_SCALE_KEY);
 356         mTransitionAnimationScale = addListPreference(TRANSITION_ANIMATION_SCALE_KEY);
 357         mAnimatorDurationScale = addListPreference(ANIMATOR_DURATION_SCALE_KEY);
 358         mOverlayDisplayDevices = addListPreference(OVERLAY_DISPLAY_DEVICES_KEY);
 359         mEnableMultiWindow = findAndInitSwitchPref(ENABLE_MULTI_WINDOW_KEY);
 360         if (!showEnableMultiWindowPreference()) {
 361             final PreferenceGroup drawingGroup =
 362                     (PreferenceGroup)findPreference("debug_drawing_category");
 363             if (drawingGroup != null) {
 364                 drawingGroup.removePreference(mEnableMultiWindow);
 365             } else {
 366                 mEnableMultiWindow.setEnabled(false);
 367             }
 368             removePreference(mEnableMultiWindow);
 369             mEnableMultiWindow = null;
 370         }
 371         mOpenGLTraces = addListPreference(OPENGL_TRACES_KEY);
 372         mSimulateColorSpace = addListPreference(SIMULATE_COLOR_SPACE);
 373         mUseAwesomePlayer = findAndInitSwitchPref(USE_AWESOMEPLAYER_KEY);
 374         mUSBAudio = findAndInitSwitchPref(USB_AUDIO_KEY);
 375
 376         mImmediatelyDestroyActivities = (SwitchPreference) findPreference(
 377                 IMMEDIATELY_DESTROY_ACTIVITIES_KEY);
 378         mAllPrefs.add(mImmediatelyDestroyActivities);
 379         mResetSwitchPrefs.add(mImmediatelyDestroyActivities);
 380
 381         mAppProcessLimit = addListPreference(APP_PROCESS_LIMIT_KEY);
 382
 383         mShowAllANRs = (SwitchPreference) findPreference(
 384                 SHOW_ALL_ANRS_KEY);
 385         mAllPrefs.add(mShowAllANRs);
 386         mResetSwitchPrefs.add(mShowAllANRs);
 387
 388         Preference hdcpChecking = findPreference(HDCP_CHECKING_KEY);
 389         if (hdcpChecking != null) {
 390             mAllPrefs.add(hdcpChecking);
 391             removePreferenceForProduction(hdcpChecking);
 392         }
 393
 394         mProcessStats = (PreferenceScreen) findPreference(PROCESS_STATS);
 395         mAllPrefs.add(mProcessStats);
 396     }
 397
 398     private ListPreference addListPreference(String prefKey) {
 399         ListPreference pref = (ListPreference) findPreference(prefKey);
 400         mAllPrefs.add(pref);
 401         pref.setOnPreferenceChangeListener(this);
 402         return pref;
 403     }
 404
 405     private void disableForUser(Preference pref) {
 406         if (pref != null) {
 407             pref.setEnabled(false);
 408             mDisabledPrefs.add(pref);
 409         }
 410     }
 411
 412     private SwitchPreference findAndInitSwitchPref(String key) {
 413         SwitchPreference pref = (SwitchPreference) findPreference(key);
 414         if (pref == null) {
 415             throw new IllegalArgumentException("Cannot find preference with key = " + key);
 416         }
 417         mAllPrefs.add(pref);
 418         mResetSwitchPrefs.add(pref);
 419         return pref;
 420     }
 421
 422     @Override
 423     public void onActivityCreated(Bundle savedInstanceState) {
 424         super.onActivityCreated(savedInstanceState);
 425
 426         final SettingsActivity activity = (SettingsActivity) getActivity();
 427
 428         mSwitchBar = activity.getSwitchBar();
 429        if (mUnavailable) {
 430             mSwitchBar.setEnabled(false);
 431             return;
 432         }
 433
 434         mSwitchBar.addOnSwitchChangeListener(this);
 435     }
 436
 437     private boolean removePreferenceForProduction(Preference preference) {
 438         if ("user".equals(Build.TYPE)) {
 439             removePreference(preference);
 440             return true;
 441         }
 442         return false;
 443     }
 444
 445     private void removePreference(Preference preference) {
 446         getPreferenceScreen().removePreference(preference);
 447         mAllPrefs.remove(preference);
 448         mResetSwitchPrefs.remove(preference);
 449     }
 450
 451     private void setPrefsEnabledState(boolean enabled) {
 452         for (int i = 0; i < mAllPrefs.size(); i++) {
 453             Preference pref = mAllPrefs.get(i);
 454             pref.setEnabled(enabled && !mDisabledPrefs.contains(pref));
 455         }
 456         updateAllOptions();
 457     }
 458
 459     @Override
 460     public void onResume() {
 461         super.onResume();
 462
 463         if (mUnavailable) {
 464             // Show error message
 465             TextView emptyView = (TextView) getView().findViewById(android.R.id.empty);
 466             getListView().setEmptyView(emptyView);
 467             if (emptyView != null) {
 468                 emptyView.setText(R.string.development_settings_not_available);
 469             }
 470             return;
 471         }
 472
 473         if (mDpm.getMaximumTimeToLock(null) > 0) {
 474             // A DeviceAdmin has specified a maximum time until the device
 475             // will lock...  in this case we can't allow the user to turn
 476             // on "stay awake when plugged in" because that would defeat the
 477             // restriction.
 478             mDisabledPrefs.add(mKeepScreenOn);
 479         } else {
 480             mDisabledPrefs.remove(mKeepScreenOn);
 481         }
 482
 483         final ContentResolver cr = getActivity().getContentResolver();
 484         mLastEnabledState = Settings.Global.getInt(cr,
 485                 Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0;
 486         mSwitchBar.setChecked(mLastEnabledState);
 487         setPrefsEnabledState(mLastEnabledState);
 488
 489         if (mHaveDebugSettings && !mLastEnabledState) {
 490             // Overall debugging is disabled, but there are some debug
 491             // settings that are enabled.  This is an invalid state.  Switch
 492             // to debug settings being enabled, so the user knows there is
 493             // stuff enabled and can turn it all off if they want.
 494             Settings.Global.putInt(getActivity().getContentResolver(),
 495                     Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 1);
 496             mLastEnabledState = true;
 497             mSwitchBar.setChecked(mLastEnabledState);
 498             setPrefsEnabledState(mLastEnabledState);
 499         }
 500         mSwitchBar.show();
 501     }
 502
 503     @Override
 504     public View onCreateView(LayoutInflater inflater, ViewGroup container,
 505             Bundle savedInstanceState) {
 506         IntentFilter filter = new IntentFilter();
 507         filter.addAction(UsbManager.ACTION_USB_STATE);
 508         getActivity().registerReceiver(mUsbReceiver, filter);
 509         return super.onCreateView(inflater, container, savedInstanceState);
 510     }
 511
 512     @Override
 513     public void onDestroyView() {
 514         super.onDestroyView();
 515
 516         if (mUnavailable) {
 517             return;
 518         }
 519         mSwitchBar.removeOnSwitchChangeListener(this);
 520         mSwitchBar.hide();
 521         getActivity().unregisterReceiver(mUsbReceiver);
 522     }
 523
 524     void updateSwitchPreference(SwitchPreference switchPreference, boolean value) {
 525         switchPreference.setChecked(value);
 526         mHaveDebugSettings |= value;
 527     }
 528
 529     private void updateAllOptions() {
 530         final Context context = getActivity();
 531         final ContentResolver cr = context.getContentResolver();
 532         mHaveDebugSettings = false;
 533         updateSwitchPreference(mEnableAdb, Settings.Global.getInt(cr,
 534                 Settings.Global.ADB_ENABLED, 0) != 0);
 535         if (mEnableTerminal != null) {
 536             updateSwitchPreference(mEnableTerminal,
 537                     context.getPackageManager().getApplicationEnabledSetting(TERMINAL_APP_PACKAGE)
 538                             == PackageManager.COMPONENT_ENABLED_STATE_ENABLED);
 539         }
 540         updateSwitchPreference(mBugreportInPower, Settings.Secure.getInt(cr,
 541                 Settings.Secure.BUGREPORT_IN_POWER_MENU, 0) != 0);
 542         updateSwitchPreference(mKeepScreenOn, Settings.Global.getInt(cr,
 543                 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0) != 0);
 544         updateSwitchPreference(mBtHciSnoopLog, Settings.Secure.getInt(cr,
 545                 Settings.Secure.BLUETOOTH_HCI_LOG, 0) != 0);
 546         if (mEnableOemUnlock != null) {
 547             updateSwitchPreference(mEnableOemUnlock, Utils.isOemUnlockEnabled(getActivity()));
 548         }
 549         updateSwitchPreference(mAllowMockLocation, Settings.Secure.getInt(cr,
 550                 Settings.Secure.ALLOW_MOCK_LOCATION, 0) != 0);
 551         updateSwitchPreference(mDebugViewAttributes, Settings.Global.getInt(cr,
 552                 Settings.Global.DEBUG_VIEW_ATTRIBUTES, 0) != 0);
 553         updateHdcpValues();
 554         updatePasswordSummary();
 555         updateDebuggerOptions();
 556         updateStrictModeVisualOptions();
 557         updatePointerLocationOptions();
 558         updateShowTouchesOptions();
 559         updateFlingerOptions();
 560         updateCpuUsageOptions();
 561         updateHardwareUiOptions();
 562         updateMsaaOptions();
 563         updateTrackFrameTimeOptions();
 564         updateShowNonRectClipOptions();
 565         updateShowHwScreenUpdatesOptions();
 566         updateShowHwLayersUpdatesOptions();
 567         updateDebugHwOverdrawOptions();
 568         updateDebugLayoutOptions();
 569         updateAnimationScaleOptions();
 570         updateOverlayDisplayDevicesOptions();
 571         if (mEnableMultiWindow != null) {
 572             updateSwitchPreference(mEnableMultiWindow,
 573                     SystemProperties.getBoolean(MULTI_WINDOW_SYSTEM_PROPERTY, false));
 574         }
 575         updateOpenGLTracesOptions();
 576         updateImmediatelyDestroyActivitiesOptions();
 577         updateAppProcessLimitOptions();
 578         updateShowAllANRsOptions();
 579         updateVerifyAppsOverUsbOptions();
 580         updateBugreportOptions();
 581         updateForceRtlOptions();
 582         updateLogdSizeValues();
 583         updateWifiDisplayCertificationOptions();
 584         updateWifiVerboseLoggingOptions();
 585         updateWifiAggressiveHandoverOptions();
 586         updateWifiAllowScansWithTrafficOptions();
 587         updateLegacyDhcpClientOptions();
 588         updateSimulateColorSpace();
 589         updateUseNuplayerOptions();
 590         updateUSBAudioOptions();
 591     }
 592
 593     private void resetDangerousOptions() {
 594         mDontPokeProperties = true;
 595         for (int i=0; i< mResetSwitchPrefs.size(); i++) {
 596             SwitchPreference cb = mResetSwitchPrefs.get(i);
 597             if (cb.isChecked()) {
 598                 cb.setChecked(false);
 599                 onPreferenceTreeClick(null, cb);
 600             }
 601         }
 602         resetDebuggerOptions();
 603         writeLogdSizeOption(null);
 604         writeAnimationScaleOption(0, mWindowAnimationScale, null);
 605         writeAnimationScaleOption(1, mTransitionAnimationScale, null);
 606         writeAnimationScaleOption(2, mAnimatorDurationScale, null);
 607         // Only poke the color space setting if we control it.
 608         if (usingDevelopmentColorSpace()) {
 609             writeSimulateColorSpace(-1);
 610         }
 611         writeOverlayDisplayDevicesOptions(null);
 612         writeAppProcessLimitOptions(null);
 613         mHaveDebugSettings = false;
 614         updateAllOptions();
 615         mDontPokeProperties = false;
 616         pokeSystemProperties();
 617     }
 618
 619     private void updateHdcpValues() {
 620         ListPreference hdcpChecking = (ListPreference) findPreference(HDCP_CHECKING_KEY);
 621         if (hdcpChecking != null) {
 622             String currentValue = SystemProperties.get(HDCP_CHECKING_PROPERTY);
 623             String[] values = getResources().getStringArray(R.array.hdcp_checking_values);
 624             String[] summaries = getResources().getStringArray(R.array.hdcp_checking_summaries);
 625             int index = 1; // Defaults to drm-only. Needs to match with R.array.hdcp_checking_values
 626             for (int i = 0; i < values.length; i++) {
 627                 if (currentValue.equals(values[i])) {
 628                     index = i;
 629                     break;
 630                 }
 631             }
 632             hdcpChecking.setValue(values[index]);
 633             hdcpChecking.setSummary(summaries[index]);
 634             hdcpChecking.setOnPreferenceChangeListener(this);
 635         }
 636     }
 637
 638     private void updatePasswordSummary() {
 639         try {
 640             if (mBackupManager.hasBackupPassword()) {
 641                 mPassword.setSummary(R.string.local_backup_password_summary_change);
 642             } else {
 643                 mPassword.setSummary(R.string.local_backup_password_summary_none);
 644             }
 645         } catch (RemoteException e) {
 646             // Not much we can do here
 647         }
 648     }
 649
 650     private void writeBtHciSnoopLogOptions() {
 651         BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
 652         adapter.configHciSnoopLog(mBtHciSnoopLog.isChecked());
 653         Settings.Secure.putInt(getActivity().getContentResolver(),
 654                 Settings.Secure.BLUETOOTH_HCI_LOG,
 655                 mBtHciSnoopLog.isChecked() ? 1 : 0);
 656     }
 657
 658     private void writeDebuggerOptions() {
 659         try {
 660             ActivityManagerNative.getDefault().setDebugApp(
 661                 mDebugApp, mWaitForDebugger.isChecked(), true);
 662         } catch (RemoteException ex) {
 663         }
 664     }
 665
 666     private static void resetDebuggerOptions() {
 667         try {
 668             ActivityManagerNative.getDefault().setDebugApp(
 669                     null, false, true);
 670         } catch (RemoteException ex) {
 671         }
 672     }
 673
 674     private void updateDebuggerOptions() {
 675         mDebugApp = Settings.Global.getString(
 676                 getActivity().getContentResolver(), Settings.Global.DEBUG_APP);
 677         updateSwitchPreference(mWaitForDebugger, Settings.Global.getInt(
 678                 getActivity().getContentResolver(), Settings.Global.WAIT_FOR_DEBUGGER, 0) != 0);
 679         if (mDebugApp != null && mDebugApp.length() > 0) {
 680             String label;
 681             try {
 682                 ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(mDebugApp,
 683                         PackageManager.GET_DISABLED_COMPONENTS);
 684                 CharSequence lab = getActivity().getPackageManager().getApplicationLabel(ai);
 685                 label = lab != null ? lab.toString() : mDebugApp;
 686             } catch (PackageManager.NameNotFoundException e) {
 687                 label = mDebugApp;
 688             }
 689             mDebugAppPref.setSummary(getResources().getString(R.string.debug_app_set, label));
 690             mWaitForDebugger.setEnabled(true);
 691             mHaveDebugSettings = true;
 692         } else {
 693             mDebugAppPref.setSummary(getResources().getString(R.string.debug_app_not_set));
 694             mWaitForDebugger.setEnabled(false);
 695         }
 696     }
 697
 698     private void updateVerifyAppsOverUsbOptions() {
 699         updateSwitchPreference(mVerifyAppsOverUsb, Settings.Global.getInt(getActivity().getContentResolver(),
 700                 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) != 0);
 701         mVerifyAppsOverUsb.setEnabled(enableVerifierSetting());
 702     }
 703
 704     private void writeVerifyAppsOverUsbOptions() {
 705         Settings.Global.putInt(getActivity().getContentResolver(),
 706               Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, mVerifyAppsOverUsb.isChecked() ? 1 : 0);
 707     }
 708
 709     private boolean enableVerifierSetting() {
 710         final ContentResolver cr = getActivity().getContentResolver();
 711         if (Settings.Global.getInt(cr, Settings.Global.ADB_ENABLED, 0) == 0) {
 712             return false;
 713         }
 714         if (Settings.Global.getInt(cr, Settings.Global.PACKAGE_VERIFIER_ENABLE, 1) == 0) {
 715             return false;
 716         } else {
 717             final PackageManager pm = getActivity().getPackageManager();
 718             final Intent verification = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
 719             verification.setType(PACKAGE_MIME_TYPE);
 720             verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 721             final List<ResolveInfo> receivers = pm.queryBroadcastReceivers(verification, 0);
 722             if (receivers.size() == 0) {
 723                 return false;
 724             }
 725         }
 726         return true;
 727     }
 728
 729     private boolean showVerifierSetting() {
 730         return Settings.Global.getInt(getActivity().getContentResolver(),
 731                 Settings.Global.PACKAGE_VERIFIER_SETTING_VISIBLE, 1) > 0;
 732     }
 733
 734     private static boolean showEnableOemUnlockPreference() {
 735         return !SystemProperties.get(PERSISTENT_DATA_BLOCK_PROP).equals("");
 736     }
 737
 738     private static boolean showEnableMultiWindowPreference() {
 739         return !"user".equals(Build.TYPE);
 740     }
 741
 742     private void setEnableMultiWindow(boolean value) {
 743         SystemProperties.set(MULTI_WINDOW_SYSTEM_PROPERTY, String.valueOf(value));
 744         pokeSystemProperties();
 745     }
 746
 747     private void updateBugreportOptions() {
 748         if ("user".equals(Build.TYPE)) {
 749             final ContentResolver resolver = getActivity().getContentResolver();
 750             final boolean adbEnabled = Settings.Global.getInt(
 751                     resolver, Settings.Global.ADB_ENABLED, 0) != 0;
 752             if (adbEnabled) {
 753                 mBugreport.setEnabled(true);
 754                 mBugreportInPower.setEnabled(true);
 755             } else {
 756                 mBugreport.setEnabled(false);
 757                 mBugreportInPower.setEnabled(false);
 758                 mBugreportInPower.setChecked(false);
 759                 Settings.Secure.putInt(resolver, Settings.Secure.BUGREPORT_IN_POWER_MENU, 0);
 760             }
 761         } else {
 762             mBugreportInPower.setEnabled(true);
 763         }
 764     }
 765
 766     // Returns the current state of the system property that controls
 767     // strictmode flashes.  One of:
 768     //    0: not explicitly set one way or another
 769     //    1: on
 770     //    2: off
 771     private static int currentStrictModeActiveIndex() {
 772         if (TextUtils.isEmpty(SystemProperties.get(StrictMode.VISUAL_PROPERTY))) {
 773             return 0;
 774         }
 775         boolean enabled = SystemProperties.getBoolean(StrictMode.VISUAL_PROPERTY, false);
 776         return enabled ? 1 : 2;
 777     }
 778
 779     private void writeStrictModeVisualOptions() {
 780         try {
 781             mWindowManager.setStrictModeVisualIndicatorPreference(mStrictMode.isChecked()
 782                     ? "1" : "");
 783         } catch (RemoteException e) {
 784         }
 785     }
 786
 787     private void updateStrictModeVisualOptions() {
 788         updateSwitchPreference(mStrictMode, currentStrictModeActiveIndex() == 1);
 789     }
 790
 791     private void writePointerLocationOptions() {
 792         Settings.System.putInt(getActivity().getContentResolver(),
 793                 Settings.System.POINTER_LOCATION, mPointerLocation.isChecked() ? 1 : 0);
 794     }
 795
 796     private void updatePointerLocationOptions() {
 797         updateSwitchPreference(mPointerLocation,
 798                 Settings.System.getInt(getActivity().getContentResolver(),
 799                 Settings.System.POINTER_LOCATION, 0) != 0);
 800     }
 801
 802     private void writeShowTouchesOptions() {
 803         Settings.System.putInt(getActivity().getContentResolver(),
 804                 Settings.System.SHOW_TOUCHES, mShowTouches.isChecked() ? 1 : 0);
 805     }
 806
 807     private void updateShowTouchesOptions() {
 808         updateSwitchPreference(mShowTouches,
 809                 Settings.System.getInt(getActivity().getContentResolver(),
 810                 Settings.System.SHOW_TOUCHES, 0) != 0);
 811     }
 812
 813     private void updateFlingerOptions() {
 814         // magic communication with surface flinger.
 815         try {
 816             IBinder flinger = ServiceManager.getService("SurfaceFlinger");
 817             if (flinger != null) {
 818                 Parcel data = Parcel.obtain();
 819                 Parcel reply = Parcel.obtain();
 820                 data.writeInterfaceToken("android.ui.ISurfaceComposer");
 821                 flinger.transact(1010, data, reply, 0);
 822                 @SuppressWarnings("unused")
 823                 int showCpu = reply.readInt();
 824                 @SuppressWarnings("unused")
 825                 int enableGL = reply.readInt();
 826                 int showUpdates = reply.readInt();
 827                 updateSwitchPreference(mShowScreenUpdates, showUpdates != 0);
 828                 @SuppressWarnings("unused")
 829                 int showBackground = reply.readInt();
 830                 int disableOverlays = reply.readInt();
 831                 updateSwitchPreference(mDisableOverlays, disableOverlays != 0);
 832                 reply.recycle();
 833                 data.recycle();
 834             }
 835         } catch (RemoteException ex) {
 836         }
 837     }
 838
 839     private void writeShowUpdatesOption() {
 840         try {
 841             IBinder flinger = ServiceManager.getService("SurfaceFlinger");
 842             if (flinger != null) {
 843                 Parcel data = Parcel.obtain();
 844                 data.writeInterfaceToken("android.ui.ISurfaceComposer");
 845                 final int showUpdates = mShowScreenUpdates.isChecked() ? 1 : 0;
 846                 data.writeInt(showUpdates);
 847                 flinger.transact(1002, data, null, 0);
 848                 data.recycle();
 849
 850                 updateFlingerOptions();
 851             }
 852         } catch (RemoteException ex) {
 853         }
 854     }
 855
 856     private void writeDisableOverlaysOption() {
 857         try {
 858             IBinder flinger = ServiceManager.getService("SurfaceFlinger");
 859             if (flinger != null) {
 860                 Parcel data = Parcel.obtain();
 861                 data.writeInterfaceToken("android.ui.ISurfaceComposer");
 862                 final int disableOverlays = mDisableOverlays.isChecked() ? 1 : 0;
 863                 data.writeInt(disableOverlays);
 864                 flinger.transact(1008, data, null, 0);
 865                 data.recycle();
 866
 867                 updateFlingerOptions();
 868             }
 869         } catch (RemoteException ex) {
 870         }
 871     }
 872
 873     private void updateHardwareUiOptions() {
 874         updateSwitchPreference(mForceHardwareUi, SystemProperties.getBoolean(HARDWARE_UI_PROPERTY, false));
 875     }
 876
 877     private void writeHardwareUiOptions() {
 878         SystemProperties.set(HARDWARE_UI_PROPERTY, mForceHardwareUi.isChecked() ? "true" : "false");
 879         pokeSystemProperties();
 880     }
 881
 882     private void updateMsaaOptions() {
 883         updateSwitchPreference(mForceMsaa, SystemProperties.getBoolean(MSAA_PROPERTY, false));
 884     }
 885
 886     private void writeMsaaOptions() {
 887         SystemProperties.set(MSAA_PROPERTY, mForceMsaa.isChecked() ? "true" : "false");
 888         pokeSystemProperties();
 889     }
 890
 891     private void updateTrackFrameTimeOptions() {
 892         String value = SystemProperties.get(HardwareRenderer.PROFILE_PROPERTY);
 893         if (value == null) {
 894             value = "";
 895         }
 896
 897         CharSequence[] values = mTrackFrameTime.getEntryValues();
 898         for (int i = 0; i < values.length; i++) {
 899             if (value.contentEquals(values[i])) {
 900                 mTrackFrameTime.setValueIndex(i);
 901                 mTrackFrameTime.setSummary(mTrackFrameTime.getEntries()[i]);
 902                 return;
 903             }
 904         }
 905         mTrackFrameTime.setValueIndex(0);
 906         mTrackFrameTime.setSummary(mTrackFrameTime.getEntries()[0]);
 907     }
 908
 909     private void writeTrackFrameTimeOptions(Object newValue) {
 910         SystemProperties.set(HardwareRenderer.PROFILE_PROPERTY,
 911                 newValue == null ? "" : newValue.toString());
 912         pokeSystemProperties();
 913         updateTrackFrameTimeOptions();
 914     }
 915
 916     private void updateShowNonRectClipOptions() {
 917         String value = SystemProperties.get(
 918                 HardwareRenderer.DEBUG_SHOW_NON_RECTANGULAR_CLIP_PROPERTY);
 919         if (value == null) {
 920             value = "hide";
 921         }
 922
 923         CharSequence[] values = mShowNonRectClip.getEntryValues();
 924         for (int i = 0; i < values.length; i++) {
 925             if (value.contentEquals(values[i])) {
 926                 mShowNonRectClip.setValueIndex(i);
 927                 mShowNonRectClip.setSummary(mShowNonRectClip.getEntries()[i]);
 928                 return;
 929             }
 930         }
 931         mShowNonRectClip.setValueIndex(0);
 932         mShowNonRectClip.setSummary(mShowNonRectClip.getEntries()[0]);
 933     }
 934
 935     private void writeShowNonRectClipOptions(Object newValue) {
 936         SystemProperties.set(HardwareRenderer.DEBUG_SHOW_NON_RECTANGULAR_CLIP_PROPERTY,
 937                 newValue == null ? "" : newValue.toString());
 938         pokeSystemProperties();
 939         updateShowNonRectClipOptions();
 940     }
 941
 942     private void updateShowHwScreenUpdatesOptions() {
 943         updateSwitchPreference(mShowHwScreenUpdates,
 944                 SystemProperties.getBoolean(HardwareRenderer.DEBUG_DIRTY_REGIONS_PROPERTY, false));
 945     }
 946
 947     private void writeShowHwScreenUpdatesOptions() {
 948         SystemProperties.set(HardwareRenderer.DEBUG_DIRTY_REGIONS_PROPERTY,
 949                 mShowHwScreenUpdates.isChecked() ? "true" : null);
 950         pokeSystemProperties();
 951     }
 952
 953     private void updateShowHwLayersUpdatesOptions() {
 954         updateSwitchPreference(mShowHwLayersUpdates, SystemProperties.getBoolean(
 955                 HardwareRenderer.DEBUG_SHOW_LAYERS_UPDATES_PROPERTY, false));
 956     }
 957
 958     private void writeShowHwLayersUpdatesOptions() {
 959         SystemProperties.set(HardwareRenderer.DEBUG_SHOW_LAYERS_UPDATES_PROPERTY,
 960                 mShowHwLayersUpdates.isChecked() ? "true" : null);
 961         pokeSystemProperties();
 962     }
 963
 964     private void updateDebugHwOverdrawOptions() {
 965         String value = SystemProperties.get(HardwareRenderer.DEBUG_OVERDRAW_PROPERTY);
 966         if (value == null) {
 967             value = "";
 968         }
 969
 970         CharSequence[] values = mDebugHwOverdraw.getEntryValues();
 971         for (int i = 0; i < values.length; i++) {
 972             if (value.contentEquals(values[i])) {
 973                 mDebugHwOverdraw.setValueIndex(i);
 974                 mDebugHwOverdraw.setSummary(mDebugHwOverdraw.getEntries()[i]);
 975                 return;
 976             }
 977         }
 978         mDebugHwOverdraw.setValueIndex(0);
 979         mDebugHwOverdraw.setSummary(mDebugHwOverdraw.getEntries()[0]);
 980     }
 981
 982     private void writeDebugHwOverdrawOptions(Object newValue) {
 983         SystemProperties.set(HardwareRenderer.DEBUG_OVERDRAW_PROPERTY,
 984                 newValue == null ? "" : newValue.toString());
 985         pokeSystemProperties();
 986         updateDebugHwOverdrawOptions();
 987     }
 988
 989     private void updateDebugLayoutOptions() {
 990         updateSwitchPreference(mDebugLayout,
 991                 SystemProperties.getBoolean(View.DEBUG_LAYOUT_PROPERTY, false));
 992     }
 993
 994     private void writeDebugLayoutOptions() {
 995         SystemProperties.set(View.DEBUG_LAYOUT_PROPERTY,
 996                 mDebugLayout.isChecked() ? "true" : "false");
 997         pokeSystemProperties();
 998     }
 999
1000     private void updateSimulateColorSpace() {
1001         final ContentResolver cr = getContentResolver();
1002         final boolean enabled = Settings.Secure.getInt(
1003                 cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, 0) != 0;
1004         if (enabled) {
1005             final String mode = Integer.toString(Settings.Secure.getInt(
1006                     cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER,
1007                     AccessibilityManager.DALTONIZER_DISABLED));
1008             mSimulateColorSpace.setValue(mode);
1009             final int index = mSimulateColorSpace.findIndexOfValue(mode);
1010             if (index < 0) {
1011                 // We're using a mode controlled by accessibility preferences.
1012                 mSimulateColorSpace.setSummary(getString(R.string.daltonizer_type_overridden,
1013                         getString(R.string.accessibility_display_daltonizer_preference_title)));
1014             } else {
1015                 mSimulateColorSpace.setSummary("%s");
1016             }
1017         } else {
1018             mSimulateColorSpace.setValue(
1019                     Integer.toString(AccessibilityManager.DALTONIZER_DISABLED));
1020         }
1021     }
1022
1023     /**
1024      * @return <code>true</code> if the color space preference is currently
1025      *         controlled by development settings
1026      */
1027     private boolean usingDevelopmentColorSpace() {
1028         final ContentResolver cr = getContentResolver();
1029         final boolean enabled = Settings.Secure.getInt(
1030                 cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, 0) != 0;
1031         if (enabled) {
1032             final String mode = Integer.toString(Settings.Secure.getInt(
1033                     cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER,
1034                     AccessibilityManager.DALTONIZER_DISABLED));
1035             final int index = mSimulateColorSpace.findIndexOfValue(mode);
1036             if (index >= 0) {
1037                 // We're using a mode controlled by developer preferences.
1038                 return true;
1039             }
1040         }
1041         return false;
1042     }
1043
1044     private void writeSimulateColorSpace(Object value) {
1045         final ContentResolver cr = getContentResolver();
1046         final int newMode = Integer.parseInt(value.toString());
1047         if (newMode < 0) {
1048             Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, 0);
1049         } else {
1050             Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED, 1);
1051             Settings.Secure.putInt(cr, Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER, newMode);
1052         }
1053     }
1054
1055     private void updateUseNuplayerOptions() {
1056         updateSwitchPreference(
1057                 mUseAwesomePlayer, SystemProperties.getBoolean(USE_AWESOMEPLAYER_PROPERTY, false));
1058     }
1059
1060     private void writeUseAwesomePlayerOptions() {
1061         SystemProperties.set(
1062                 USE_AWESOMEPLAYER_PROPERTY, mUseAwesomePlayer.isChecked() ? "true" : "false");
1063         pokeSystemProperties();
1064     }
1065
1066     private void updateUSBAudioOptions() {
1067         updateSwitchPreference(mUSBAudio, Settings.Secure.getInt(getContentResolver(),
1068                 Settings.Secure.USB_AUDIO_AUTOMATIC_ROUTING_DISABLED, 0) != 0);
1069     }
1070
1071     private void writeUSBAudioOptions() {
1072         Settings.Secure.putInt(getContentResolver(),
1073                 Settings.Secure.USB_AUDIO_AUTOMATIC_ROUTING_DISABLED,
1074                 mUSBAudio.isChecked() ? 1 : 0);
1075     }
1076
1077     private void updateForceRtlOptions() {
1078         updateSwitchPreference(mForceRtlLayout,
1079                 Settings.Global.getInt(getActivity().getContentResolver(),
1080                 Settings.Global.DEVELOPMENT_FORCE_RTL, 0) != 0);
1081     }
1082
1083     private void writeForceRtlOptions() {
1084         boolean value = mForceRtlLayout.isChecked();
1085         Settings.Global.putInt(getActivity().getContentResolver(),
1086                 Settings.Global.DEVELOPMENT_FORCE_RTL, value ? 1 : 0);
1087         SystemProperties.set(Settings.Global.DEVELOPMENT_FORCE_RTL, value ? "1" : "0");
1088         LocalePicker.updateLocale(getActivity().getResources().getConfiguration().locale);
1089     }
1090
1091     private void updateWifiDisplayCertificationOptions() {
1092         updateSwitchPreference(mWifiDisplayCertification, Settings.Global.getInt(
1093                 getActivity().getContentResolver(),
1094                 Settings.Global.WIFI_DISPLAY_CERTIFICATION_ON, 0) != 0);
1095     }
1096
1097     private void writeWifiDisplayCertificationOptions() {
1098         Settings.Global.putInt(getActivity().getContentResolver(),
1099                 Settings.Global.WIFI_DISPLAY_CERTIFICATION_ON,
1100                 mWifiDisplayCertification.isChecked() ? 1 : 0);
1101     }
1102
1103     private void updateWifiVerboseLoggingOptions() {
1104         boolean enabled = mWifiManager.getVerboseLoggingLevel() > 0;
1105         updateSwitchPreference(mWifiVerboseLogging, enabled);
1106     }
1107
1108     private void writeWifiVerboseLoggingOptions() {
1109         mWifiManager.enableVerboseLogging(mWifiVerboseLogging.isChecked() ? 1 : 0);
1110     }
1111
1112     private void updateWifiAggressiveHandoverOptions() {
1113         boolean enabled = mWifiManager.getAggressiveHandover() > 0;
1114         updateSwitchPreference(mWifiAggressiveHandover, enabled);
1115     }
1116
1117     private void writeWifiAggressiveHandoverOptions() {
1118         mWifiManager.enableAggressiveHandover(mWifiAggressiveHandover.isChecked() ? 1 : 0);
1119     }
1120
1121     private void updateWifiAllowScansWithTrafficOptions() {
1122         boolean enabled = mWifiManager.getAllowScansWithTraffic() > 0;
1123         updateSwitchPreference(mWifiAllowScansWithTraffic, enabled);
1124     }
1125
1126     private void writeWifiAllowScansWithTrafficOptions() {
1127         mWifiManager.setAllowScansWithTraffic(mWifiAllowScansWithTraffic.isChecked() ? 1 : 0);
1128     }
1129
1130     private void updateLegacyDhcpClientOptions() {
1131         updateSwitchPreference(mLegacyDhcpClient, Settings.Global.getInt(
1132                 getActivity().getContentResolver(),
1133                 Settings.Global.LEGACY_DHCP_CLIENT, 0) != 0);
1134     }
1135
1136     private void writeLegacyDhcpClientOptions() {
1137         Settings.Global.putInt(getActivity().getContentResolver(),
1138                 Settings.Global.LEGACY_DHCP_CLIENT,
1139                 mLegacyDhcpClient.isChecked() ? 1 : 0);
1140     }
1141
1142     private void updateLogdSizeValues() {
1143         if (mLogdSize != null) {
1144             String currentValue = SystemProperties.get(SELECT_LOGD_SIZE_PROPERTY);
1145             if (currentValue == null) {
1146                 currentValue = SystemProperties.get(SELECT_LOGD_DEFAULT_SIZE_PROPERTY);
1147                 if (currentValue == null) {
1148                     currentValue = "256K";
1149                 }
1150             }
1151             String[] values = getResources().getStringArray(R.array.select_logd_size_values);
1152             String[] titles = getResources().getStringArray(R.array.select_logd_size_titles);
1153             if (SystemProperties.get("ro.config.low_ram").equals("true")) {
1154                 mLogdSize.setEntries(R.array.select_logd_size_lowram_titles);
1155                 titles = getResources().getStringArray(R.array.select_logd_size_lowram_titles);
1156             }
1157             String[] summaries = getResources().getStringArray(R.array.select_logd_size_summaries);
1158             int index = 1; // punt to second entry if not found
1159             for (int i = 0; i < titles.length; i++) {
1160                 if (currentValue.equals(values[i])
1161                         || currentValue.equals(titles[i])) {
1162                     index = i;
1163                     break;
1164                 }
1165             }
1166             mLogdSize.setValue(values[index]);
1167             mLogdSize.setSummary(summaries[index]);
1168             mLogdSize.setOnPreferenceChangeListener(this);
1169         }
1170     }
1171
1172     private void writeLogdSizeOption(Object newValue) {
1173         String currentValue = SystemProperties.get(SELECT_LOGD_DEFAULT_SIZE_PROPERTY);
1174         if (currentValue != null) {
1175             DEFAULT_LOG_RING_BUFFER_SIZE_IN_BYTES = currentValue;
1176         }
1177         final String size = (newValue != null) ?
1178                 newValue.toString() : DEFAULT_LOG_RING_BUFFER_SIZE_IN_BYTES;
1179         SystemProperties.set(SELECT_LOGD_SIZE_PROPERTY, size);
1180         pokeSystemProperties();
1181         try {
1182             Process p = Runtime.getRuntime().exec("logcat -b all -G " + size);
1183             p.waitFor();
1184             Log.i(TAG, "Logcat ring buffer sizes set to: " + size);
1185         } catch (Exception e) {
1186             Log.w(TAG, "Cannot set logcat ring buffer sizes", e);
1187         }
1188         updateLogdSizeValues();
1189     }
1190
1191     private void updateUsbConfigurationValues() {
1192         if (mUsbConfiguration != null) {
1193             String currentValue = SystemProperties.get(SELECT_USB_CONFIGURATION_PROPERTY);
1194
1195             // Ignore adb interface. The USB Manager adds or removes adb automatically
1196             // depending on if USB debugging is enabled.
1197             int adbIndex = currentValue.indexOf(",adb");
1198             if (adbIndex > 0) {
1199                 currentValue = currentValue.substring(0, adbIndex);
1200             }
1201
1202             String[] values = getResources().getStringArray(R.array.usb_configuration_values);
1203             String[] titles = getResources().getStringArray(R.array.usb_configuration_titles);
1204             int index = 1; // punt to second entry if not found
1205             for (int i = 0; i < titles.length; i++) {
1206                 if (currentValue.equals(values[i])) {
1207                     index = i;
1208                     break;
1209                 }
1210             }
1211             if (index >= 0) {
1212                 mUsbConfiguration.setValue(values[index]);
1213                 mUsbConfiguration.setSummary(titles[index]);
1214             } else {
1215                 mUsbConfiguration.setValue("");
1216                 mUsbConfiguration.setSummary("");
1217             }
1218             mUsbConfiguration.setOnPreferenceChangeListener(this);
1219         }
1220     }
1221
1222     private void writeUsbConfigurationOption(Object newValue) {
1223         UsbManager manager = (UsbManager)getActivity().getSystemService(Context.USB_SERVICE);
1224         manager.setCurrentFunction(newValue.toString(), false);
1225     }
1226
1227     private void updateCpuUsageOptions() {
1228         updateSwitchPreference(mShowCpuUsage,
1229                 Settings.Global.getInt(getActivity().getContentResolver(),
1230                 Settings.Global.SHOW_PROCESSES, 0) != 0);
1231     }
1232
1233     private void writeCpuUsageOptions() {
1234         boolean value = mShowCpuUsage.isChecked();
1235         Settings.Global.putInt(getActivity().getContentResolver(),
1236                 Settings.Global.SHOW_PROCESSES, value ? 1 : 0);
1237         Intent service = (new Intent())
1238                 .setClassName("com.android.systemui", "com.android.systemui.LoadAverageService");
1239         if (value) {
1240             getActivity().startService(service);
1241         } else {
1242             getActivity().stopService(service);
1243         }
1244     }
1245
1246     private void writeImmediatelyDestroyActivitiesOptions() {
1247         try {
1248             ActivityManagerNative.getDefault().setAlwaysFinish(
1249                     mImmediatelyDestroyActivities.isChecked());
1250         } catch (RemoteException ex) {
1251         }
1252     }
1253
1254     private void updateImmediatelyDestroyActivitiesOptions() {
1255         updateSwitchPreference(mImmediatelyDestroyActivities, Settings.Global.getInt(
1256                 getActivity().getContentResolver(), Settings.Global.ALWAYS_FINISH_ACTIVITIES, 0) != 0);
1257     }
1258
1259     private void updateAnimationScaleValue(int which, ListPreference pref) {
1260         try {
1261             float scale = mWindowManager.getAnimationScale(which);
1262             if (scale != 1) {
1263                 mHaveDebugSettings = true;
1264             }
1265             CharSequence[] values = pref.getEntryValues();
1266             for (int i=0; i<values.length; i++) {
1267                 float val = Float.parseFloat(values[i].toString());
1268                 if (scale <= val) {
1269                     pref.setValueIndex(i);
1270                     pref.setSummary(pref.getEntries()[i]);
1271                     return;
1272                 }
1273             }
1274             pref.setValueIndex(values.length-1);
1275             pref.setSummary(pref.getEntries()[0]);
1276         } catch (RemoteException e) {
1277         }
1278     }
1279
1280     private void updateAnimationScaleOptions() {
1281         updateAnimationScaleValue(0, mWindowAnimationScale);
1282         updateAnimationScaleValue(1, mTransitionAnimationScale);
1283         updateAnimationScaleValue(2, mAnimatorDurationScale);
1284     }
1285
1286     private void writeAnimationScaleOption(int which, ListPreference pref, Object newValue) {
1287         try {
1288             float scale = newValue != null ? Float.parseFloat(newValue.toString()) : 1;
1289             mWindowManager.setAnimationScale(which, scale);
1290             updateAnimationScaleValue(which, pref);
1291         } catch (RemoteException e) {
1292         }
1293     }
1294
1295     private void updateOverlayDisplayDevicesOptions() {
1296         String value = Settings.Global.getString(getActivity().getContentResolver(),
1297                 Settings.Global.OVERLAY_DISPLAY_DEVICES);
1298         if (value == null) {
1299             value = "";
1300         }
1301
1302         CharSequence[] values = mOverlayDisplayDevices.getEntryValues();
1303         for (int i = 0; i < values.length; i++) {
1304             if (value.contentEquals(values[i])) {
1305                 mOverlayDisplayDevices.setValueIndex(i);
1306                 mOverlayDisplayDevices.setSummary(mOverlayDisplayDevices.getEntries()[i]);
1307                 return;
1308             }
1309         }
1310         mOverlayDisplayDevices.setValueIndex(0);
1311         mOverlayDisplayDevices.setSummary(mOverlayDisplayDevices.getEntries()[0]);
1312     }
1313
1314     private void writeOverlayDisplayDevicesOptions(Object newValue) {
1315         Settings.Global.putString(getActivity().getContentResolver(),
1316                 Settings.Global.OVERLAY_DISPLAY_DEVICES, (String)newValue);
1317         updateOverlayDisplayDevicesOptions();
1318     }
1319
1320     private void updateOpenGLTracesOptions() {
1321         String value = SystemProperties.get(OPENGL_TRACES_PROPERTY);
1322         if (value == null) {
1323             value = "";
1324         }
1325
1326         CharSequence[] values = mOpenGLTraces.getEntryValues();
1327         for (int i = 0; i < values.length; i++) {
1328             if (value.contentEquals(values[i])) {
1329                 mOpenGLTraces.setValueIndex(i);
1330                 mOpenGLTraces.setSummary(mOpenGLTraces.getEntries()[i]);
1331                 return;
1332             }
1333         }
1334         mOpenGLTraces.setValueIndex(0);
1335         mOpenGLTraces.setSummary(mOpenGLTraces.getEntries()[0]);
1336     }
1337
1338     private void writeOpenGLTracesOptions(Object newValue) {
1339         SystemProperties.set(OPENGL_TRACES_PROPERTY, newValue == null ? "" : newValue.toString());
1340         pokeSystemProperties();
1341         updateOpenGLTracesOptions();
1342     }
1343
1344     private void updateAppProcessLimitOptions() {
1345         try {
1346             int limit = ActivityManagerNative.getDefault().getProcessLimit();
1347             CharSequence[] values = mAppProcessLimit.getEntryValues();
1348             for (int i=0; i<values.length; i++) {
1349                 int val = Integer.parseInt(values[i].toString());
1350                 if (val >= limit) {
1351                     if (i != 0) {
1352                         mHaveDebugSettings = true;
1353                     }
1354                     mAppProcessLimit.setValueIndex(i);
1355                     mAppProcessLimit.setSummary(mAppProcessLimit.getEntries()[i]);
1356                     return;
1357                 }
1358             }
1359             mAppProcessLimit.setValueIndex(0);
1360             mAppProcessLimit.setSummary(mAppProcessLimit.getEntries()[0]);
1361         } catch (RemoteException e) {
1362         }
1363     }
1364
1365     private void writeAppProcessLimitOptions(Object newValue) {
1366         try {
1367             int limit = newValue != null ? Integer.parseInt(newValue.toString()) : -1;
1368             ActivityManagerNative.getDefault().setProcessLimit(limit);
1369             updateAppProcessLimitOptions();
1370         } catch (RemoteException e) {
1371         }
1372     }
1373
1374     private void writeShowAllANRsOptions() {
1375         Settings.Secure.putInt(getActivity().getContentResolver(),
1376                 Settings.Secure.ANR_SHOW_BACKGROUND,
1377                 mShowAllANRs.isChecked() ? 1 : 0);
1378     }
1379
1380     private void updateShowAllANRsOptions() {
1381         updateSwitchPreference(mShowAllANRs, Settings.Secure.getInt(
1382                 getActivity().getContentResolver(), Settings.Secure.ANR_SHOW_BACKGROUND, 0) != 0);
1383     }
1384
1385     private void confirmEnableOemUnlock() {
1386         DialogInterface.OnClickListener onConfirmListener = new DialogInterface.OnClickListener() {
1387             @Override
1388             public void onClick(DialogInterface dialog, int which) {
1389                 Utils.setOemUnlockEnabled(getActivity(), true);
1390                 updateAllOptions();
1391             }
1392         };
1393
1394         new AlertDialog.Builder(getActivity())
1395                 .setTitle(R.string.confirm_enable_oem_unlock_title)
1396                 .setMessage(R.string.confirm_enable_oem_unlock_text)
1397                 .setPositiveButton(R.string.enable_text, onConfirmListener)
1398                 .setNegativeButton(android.R.string.cancel, null)
1399                 .create()
1400                 .show();
1401     }
1402
1403     private void confirmEnableMultiWindowMode() {
1404         DialogInterface.OnClickListener onConfirmListener = new DialogInterface.OnClickListener() {
1405             @Override
1406             public void onClick(DialogInterface dialog, int which) {
1407                 setEnableMultiWindow((which == DialogInterface.BUTTON_POSITIVE) ? true : false);
1408                 updateAllOptions();
1409             }
1410         };
1411
1412         new AlertDialog.Builder(getActivity())
1413                 .setTitle(R.string.confirm_enable_multi_window_title)
1414                 .setMessage(R.string.confirm_enable_multi_window_text)
1415                 .setPositiveButton(R.string.enable_text, onConfirmListener)
1416                 .setNegativeButton(android.R.string.cancel, onConfirmListener)
1417                 .create()
1418                 .show();
1419     }
1420
1421     @Override
1422     public void onSwitchChanged(Switch switchView, boolean isChecked) {
1423         if (switchView != mSwitchBar.getSwitch()) {
1424             return;
1425         }
1426         if (isChecked != mLastEnabledState) {
1427             if (isChecked) {
1428                 mDialogClicked = false;
1429                 if (mEnableDialog != null) dismissDialogs();
1430                 mEnableDialog = new AlertDialog.Builder(getActivity()).setMessage(
1431                         getActivity().getResources().getString(
1432                                 R.string.dev_settings_warning_message))
1433                         .setTitle(R.string.dev_settings_warning_title)
1434                         .setPositiveButton(android.R.string.yes, this)
1435                         .setNegativeButton(android.R.string.no, this)
1436                         .show();
1437                 mEnableDialog.setOnDismissListener(this);
1438             } else {
1439                 resetDangerousOptions();
1440                 Settings.Global.putInt(getActivity().getContentResolver(),
1441                         Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0);
1442                 mLastEnabledState = isChecked;
1443                 setPrefsEnabledState(mLastEnabledState);
1444             }
1445         }
1446     }
1447
1448     @Override
1449     public void onActivityResult(int requestCode, int resultCode, Intent data) {
1450         if (requestCode == RESULT_DEBUG_APP) {
1451             if (resultCode == Activity.RESULT_OK) {
1452                 mDebugApp = data.getAction();
1453                 writeDebuggerOptions();
1454                 updateDebuggerOptions();
1455             }
1456         } else if (requestCode == REQUEST_CODE_ENABLE_OEM_UNLOCK) {
1457             if (resultCode == Activity.RESULT_OK) {
1458                 if (mEnableOemUnlock.isChecked()) {
1459                     confirmEnableOemUnlock();
1460                 } else {
1461                     Utils.setOemUnlockEnabled(getActivity(), false);
1462                 }
1463             }
1464         } else {
1465             super.onActivityResult(requestCode, resultCode, data);
1466         }
1467     }
1468
1469     @Override
1470     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
1471         if (Utils.isMonkeyRunning()) {
1472             return false;
1473         }
1474
1475         if (preference == mEnableAdb) {
1476             if (mEnableAdb.isChecked()) {
1477                 mDialogClicked = false;
1478                 if (mAdbDialog != null) dismissDialogs();
1479                 mAdbDialog = new AlertDialog.Builder(getActivity()).setMessage(
1480                         getActivity().getResources().getString(R.string.adb_warning_message))
1481                         .setTitle(R.string.adb_warning_title)
1482                         .setPositiveButton(android.R.string.yes, this)
1483                         .setNegativeButton(android.R.string.no, this)
1484                         .show();
1485                 mAdbDialog.setOnDismissListener(this);
1486             } else {
1487                 Settings.Global.putInt(getActivity().getContentResolver(),
1488                         Settings.Global.ADB_ENABLED, 0);
1489                 mVerifyAppsOverUsb.setEnabled(false);
1490                 mVerifyAppsOverUsb.setChecked(false);
1491                 updateBugreportOptions();
1492             }
1493         } else if (preference == mClearAdbKeys) {
1494             if (mAdbKeysDialog != null) dismissDialogs();
1495             mAdbKeysDialog = new AlertDialog.Builder(getActivity())
1496                         .setMessage(R.string.adb_keys_warning_message)
1497                         .setPositiveButton(android.R.string.ok, this)
1498                         .setNegativeButton(android.R.string.cancel, null)
1499                         .show();
1500         } else if (preference == mEnableTerminal) {
1501             final PackageManager pm = getActivity().getPackageManager();
1502             pm.setApplicationEnabledSetting(TERMINAL_APP_PACKAGE,
1503                     mEnableTerminal.isChecked() ? PackageManager.COMPONENT_ENABLED_STATE_ENABLED
1504                             : PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 0);
1505         } else if (preference == mBugreportInPower) {
1506             Settings.Secure.putInt(getActivity().getContentResolver(),
1507                     Settings.Secure.BUGREPORT_IN_POWER_MENU,
1508                     mBugreportInPower.isChecked() ? 1 : 0);
1509         } else if (preference == mKeepScreenOn) {
1510             Settings.Global.putInt(getActivity().getContentResolver(),
1511                     Settings.Global.STAY_ON_WHILE_PLUGGED_IN,
1512                     mKeepScreenOn.isChecked() ?
1513                             (BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB) : 0);
1514         } else if (preference == mBtHciSnoopLog) {
1515             writeBtHciSnoopLogOptions();
1516         } else if (preference == mEnableOemUnlock) {
1517             if (!showKeyguardConfirmation(getResources(), REQUEST_CODE_ENABLE_OEM_UNLOCK)) {
1518                 if (mEnableOemUnlock.isChecked()) {
1519                     confirmEnableOemUnlock();
1520                 } else {
1521                     Utils.setOemUnlockEnabled(getActivity(), false);
1522                 }
1523             }
1524         } else if (preference == mAllowMockLocation) {
1525             Settings.Secure.putInt(getActivity().getContentResolver(),
1526                     Settings.Secure.ALLOW_MOCK_LOCATION,
1527                     mAllowMockLocation.isChecked() ? 1 : 0);
1528         } else if (preference == mDebugViewAttributes) {
1529             Settings.Global.putInt(getActivity().getContentResolver(),
1530                     Settings.Global.DEBUG_VIEW_ATTRIBUTES,
1531                     mDebugViewAttributes.isChecked() ? 1 : 0);
1532         } else if (preference == mDebugAppPref) {
1533             startActivityForResult(new Intent(getActivity(), AppPicker.class), RESULT_DEBUG_APP);
1534         } else if (preference == mWaitForDebugger) {
1535             writeDebuggerOptions();
1536         } else if (preference == mVerifyAppsOverUsb) {
1537             writeVerifyAppsOverUsbOptions();
1538         } else if (preference == mStrictMode) {
1539             writeStrictModeVisualOptions();
1540         } else if (preference == mPointerLocation) {
1541             writePointerLocationOptions();
1542         } else if (preference == mShowTouches) {
1543             writeShowTouchesOptions();
1544         } else if (preference == mShowScreenUpdates) {
1545             writeShowUpdatesOption();
1546         } else if (preference == mDisableOverlays) {
1547             writeDisableOverlaysOption();
1548         } else if (preference == mEnableMultiWindow) {
1549             if (mEnableMultiWindow.isChecked()) {
1550                 confirmEnableMultiWindowMode();
1551             } else {
1552                 setEnableMultiWindow(false);
1553             }
1554         } else if (preference == mShowCpuUsage) {
1555             writeCpuUsageOptions();
1556         } else if (preference == mImmediatelyDestroyActivities) {
1557             writeImmediatelyDestroyActivitiesOptions();
1558         } else if (preference == mShowAllANRs) {
1559             writeShowAllANRsOptions();
1560         } else if (preference == mForceHardwareUi) {
1561             writeHardwareUiOptions();
1562         } else if (preference == mForceMsaa) {
1563             writeMsaaOptions();
1564         } else if (preference == mShowHwScreenUpdates) {
1565             writeShowHwScreenUpdatesOptions();
1566         } else if (preference == mShowHwLayersUpdates) {
1567             writeShowHwLayersUpdatesOptions();
1568         } else if (preference == mDebugLayout) {
1569             writeDebugLayoutOptions();
1570         } else if (preference == mForceRtlLayout) {
1571             writeForceRtlOptions();
1572         } else if (preference == mWifiDisplayCertification) {
1573             writeWifiDisplayCertificationOptions();
1574         } else if (preference == mWifiVerboseLogging) {
1575             writeWifiVerboseLoggingOptions();
1576         } else if (preference == mWifiAggressiveHandover) {
1577             writeWifiAggressiveHandoverOptions();
1578         } else if (preference == mWifiAllowScansWithTraffic) {
1579             writeWifiAllowScansWithTrafficOptions();
1580         } else if (preference == mLegacyDhcpClient) {
1581             writeLegacyDhcpClientOptions();
1582         } else if (preference == mUseAwesomePlayer) {
1583             writeUseAwesomePlayerOptions();
1584         } else if (preference == mUSBAudio) {
1585             writeUSBAudioOptions();
1586         } else {
1587             return super.onPreferenceTreeClick(preferenceScreen, preference);
1588         }
1589
1590         return false;
1591     }
1592
1593     private boolean showKeyguardConfirmation(Resources resources, int requestCode) {
1594         return new ChooseLockSettingsHelper(getActivity(), this)
1595                 .launchConfirmationActivity(requestCode,
1596                         resources.getString(R.string.oem_unlock_enable_pin_prompt),
1597                         resources.getString(R.string.oem_unlock_enable_pin_description));
1598     }
1599
1600     @Override
1601     public boolean onPreferenceChange(Preference preference, Object newValue) {
1602         if (HDCP_CHECKING_KEY.equals(preference.getKey())) {
1603             SystemProperties.set(HDCP_CHECKING_PROPERTY, newValue.toString());
1604             updateHdcpValues();
1605             pokeSystemProperties();
1606             return true;
1607         } else if (preference == mLogdSize) {
1608             writeLogdSizeOption(newValue);
1609             return true;
1610         } else if (preference == mUsbConfiguration) {
1611             writeUsbConfigurationOption(newValue);
1612             return true;
1613         } else if (preference == mWindowAnimationScale) {
1614             writeAnimationScaleOption(0, mWindowAnimationScale, newValue);
1615             return true;
1616         } else if (preference == mTransitionAnimationScale) {
1617             writeAnimationScaleOption(1, mTransitionAnimationScale, newValue);
1618             return true;
1619         } else if (preference == mAnimatorDurationScale) {
1620             writeAnimationScaleOption(2, mAnimatorDurationScale, newValue);
1621             return true;
1622         } else if (preference == mOverlayDisplayDevices) {
1623             writeOverlayDisplayDevicesOptions(newValue);
1624             return true;
1625         } else if (preference == mOpenGLTraces) {
1626             writeOpenGLTracesOptions(newValue);
1627             return true;
1628         } else if (preference == mTrackFrameTime) {
1629             writeTrackFrameTimeOptions(newValue);
1630             return true;
1631         } else if (preference == mDebugHwOverdraw) {
1632             writeDebugHwOverdrawOptions(newValue);
1633             return true;
1634         } else if (preference == mShowNonRectClip) {
1635             writeShowNonRectClipOptions(newValue);
1636             return true;
1637         } else if (preference == mAppProcessLimit) {
1638             writeAppProcessLimitOptions(newValue);
1639             return true;
1640         } else if (preference == mSimulateColorSpace) {
1641             writeSimulateColorSpace(newValue);
1642             return true;
1643         }
1644         return false;
1645     }
1646
1647     private void dismissDialogs() {
1648         if (mAdbDialog != null) {
1649             mAdbDialog.dismiss();
1650             mAdbDialog = null;
1651         }
1652         if (mAdbKeysDialog != null) {
1653             mAdbKeysDialog.dismiss();
1654             mAdbKeysDialog = null;
1655         }
1656         if (mEnableDialog != null) {
1657             mEnableDialog.dismiss();
1658             mEnableDialog = null;
1659         }
1660     }
1661
1662     public void onClick(DialogInterface dialog, int which) {
1663         if (dialog == mAdbDialog) {
1664             if (which == DialogInterface.BUTTON_POSITIVE) {
1665                 mDialogClicked = true;
1666                 Settings.Global.putInt(getActivity().getContentResolver(),
1667                         Settings.Global.ADB_ENABLED, 1);
1668                 mVerifyAppsOverUsb.setEnabled(true);
1669                 updateVerifyAppsOverUsbOptions();
1670                 updateBugreportOptions();
1671             } else {
1672                 // Reset the toggle
1673                 mEnableAdb.setChecked(false);
1674             }
1675         } else if (dialog == mAdbKeysDialog) {
1676             if (which == DialogInterface.BUTTON_POSITIVE) {
1677                 try {
1678                     IBinder b = ServiceManager.getService(Context.USB_SERVICE);
1679                     IUsbManager service = IUsbManager.Stub.asInterface(b);
1680                     service.clearUsbDebuggingKeys();
1681                 } catch (RemoteException e) {
1682                     Log.e(TAG, "Unable to clear adb keys", e);
1683                 }
1684             }
1685         } else if (dialog == mEnableDialog) {
1686             if (which == DialogInterface.BUTTON_POSITIVE) {
1687                 mDialogClicked = true;
1688                 Settings.Global.putInt(getActivity().getContentResolver(),
1689                         Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 1);
1690                 mLastEnabledState = true;
1691                 setPrefsEnabledState(mLastEnabledState);
1692             } else {
1693                 // Reset the toggle
1694                 mSwitchBar.setChecked(false);
1695             }
1696         }
1697     }
1698
1699     public void onDismiss(DialogInterface dialog) {
1700         // Assuming that onClick gets called first
1701         if (dialog == mAdbDialog) {
1702             if (!mDialogClicked) {
1703                 mEnableAdb.setChecked(false);
1704             }
1705             mAdbDialog = null;
1706         } else if (dialog == mEnableDialog) {
1707             if (!mDialogClicked) {
1708                 mSwitchBar.setChecked(false);
1709             }
1710             mEnableDialog = null;
1711         }
1712     }
1713
1714     @Override
1715     public void onDestroy() {
1716         dismissDialogs();
1717         super.onDestroy();
1718     }
1719
1720     void pokeSystemProperties() {
1721         if (!mDontPokeProperties) {
1722             //noinspection unchecked
1723             (new SystemPropPoker()).execute();
1724         }
1725     }
1726
1727     private BroadcastReceiver mUsbReceiver = new BroadcastReceiver() {
1728         @Override
1729         public void onReceive(Context context, Intent intent) {
1730             updateUsbConfigurationValues();
1731         }
1732     };
1733
1734     static class SystemPropPoker extends AsyncTask<Void, Void, Void> {
1735         @Override
1736         protected Void doInBackground(Void... params) {
1737             String[] services;
1738             try {
1739                 services = ServiceManager.listServices();
1740             } catch (RemoteException e) {
1741                 return null;
1742             }
1743             for (String service : services) {
1744                 IBinder obj = ServiceManager.checkService(service);
1745                 if (obj != null) {
1746                     Parcel data = Parcel.obtain();
1747                     try {
1748                         obj.transact(IBinder.SYSPROPS_TRANSACTION, data, null, 0);
1749                     } catch (RemoteException e) {
1750                     } catch (Exception e) {
1751                         Log.i(TAG, "Someone wrote a bad service '" + service
1752                                 + "' that doesn't like to be poked: " + e);
1753                     }
1754                     data.recycle();
1755                 }
1756             }
1757             return null;
1758         }
1759     }
1760
1761     private static boolean isPackageInstalled(Context context, String packageName) {
1762         try {
1763             return context.getPackageManager().getPackageInfo(packageName, 0) != null;
1764         } catch (NameNotFoundException e) {
1765             return false;
1766         }
1767     }
1768
1769     /**
1770      * For Search.
1771      */
1772     public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
1773             new BaseSearchIndexProvider() {
1774
1775                 private boolean isShowingDeveloperOptions(Context context) {
1776                     return context.getSharedPreferences(DevelopmentSettings.PREF_FILE,
1777                             Context.MODE_PRIVATE).getBoolean(
1778                                     DevelopmentSettings.PREF_SHOW,
1779                                     android.os.Build.TYPE.equals("eng"));
1780                 }
1781
1782                 @Override
1783                 public List<SearchIndexableResource> getXmlResourcesToIndex(
1784                         Context context, boolean enabled) {
1785
1786                     if (!isShowingDeveloperOptions(context)) {
1787                         return null;
1788                     }
1789
1790                     final SearchIndexableResource sir = new SearchIndexableResource(context);
1791                     sir.xmlResId = R.xml.development_prefs;
1792                     return Arrays.asList(sir);
1793                 }
1794
1795                 @Override
1796                 public List<String> getNonIndexableKeys(Context context) {
1797                     if (!isShowingDeveloperOptions(context)) {
1798                         return null;
1799                     }
1800
1801                     final List<String> keys = new ArrayList<String>();
1802                     if (!showEnableOemUnlockPreference()) {
1803                         keys.add(ENABLE_OEM_UNLOCK);
1804                     }
1805                     if (!showEnableMultiWindowPreference()) {
1806                         keys.add(ENABLE_MULTI_WINDOW_KEY);
1807                     }
1808                     return keys;
1809                 }
1810             };
1811 }