src/com/android/settings/wifi/WifiSettings.java

   1 /*
   2  * Copyright (C) 2010 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.wifi;
  18
  19 import static android.os.UserManager.DISALLOW_CONFIG_WIFI;
  20
  21 import android.annotation.NonNull;
  22 import android.app.Activity;
  23 import android.app.Dialog;
  24 import android.app.admin.DevicePolicyManager;
  25 import android.content.ComponentName;
  26 import android.content.ContentResolver;
  27 import android.content.Context;
  28 import android.content.Intent;
  29 import android.content.pm.PackageManager;
  30 import android.content.pm.PackageManager.NameNotFoundException;
  31 import android.content.res.Resources;
  32 import android.net.ConnectivityManager;
  33 import android.net.NetworkInfo;
  34 import android.net.NetworkInfo.State;
  35 import android.net.wifi.WifiConfiguration;
  36 import android.net.wifi.WifiManager;
  37 import android.net.wifi.WpsInfo;
  38 import android.nfc.NfcAdapter;
  39 import android.os.Bundle;
  40 import android.os.HandlerThread;
  41 import android.os.Process;
  42 import android.provider.Settings;
  43 import android.support.annotation.VisibleForTesting;
  44 import android.support.v7.preference.Preference;
  45 import android.support.v7.preference.PreferenceCategory;
  46 import android.text.TextUtils;
  47 import android.util.Log;
  48 import android.view.ContextMenu;
  49 import android.view.ContextMenu.ContextMenuInfo;
  50 import android.view.Menu;
  51 import android.view.MenuItem;
  52 import android.view.View;
  53 import android.widget.ProgressBar;
  54 import android.widget.Toast;
  55
  56 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
  57 import com.android.settings.LinkifyUtils;
  58 import com.android.settings.R;
  59 import com.android.settings.RestrictedSettingsFragment;
  60 import com.android.settings.SettingsActivity;
  61 import com.android.settings.dashboard.SummaryLoader;
  62 import com.android.settings.location.ScanningSettings;
  63 import com.android.settings.search.BaseSearchIndexProvider;
  64 import com.android.settings.search.Indexable;
  65 import com.android.settings.search.SearchIndexableRaw;
  66 import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener;
  67 import com.android.settings.widget.SwitchBarController;
  68 import com.android.settings.wifi.details.WifiNetworkDetailsFragment;
  69 import com.android.settingslib.RestrictedLockUtils;
  70 import com.android.settingslib.wifi.AccessPoint;
  71 import com.android.settingslib.wifi.AccessPoint.AccessPointListener;
  72 import com.android.settingslib.wifi.AccessPointPreference;
  73 import com.android.settingslib.wifi.WifiTracker;
  74 import com.android.settingslib.wifi.WifiTrackerFactory;
  75
  76 import java.util.ArrayList;
  77 import java.util.List;
  78
  79 /**
  80  * Two types of UI are provided here.
  81  *
  82  * The first is for "usual Settings", appearing as any other Setup fragment.
  83  *
  84  * The second is for Setup Wizard, with a simplified interface that hides the action bar
  85  * and menus.
  86  */
  87 public class WifiSettings extends RestrictedSettingsFragment
  88         implements Indexable, WifiTracker.WifiListener, AccessPointListener,
  89         WifiDialog.WifiDialogListener {
  90
  91     private static final String TAG = "WifiSettings";
  92     private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
  93
  94     /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST;
  95     private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1;
  96     private static final int MENU_ID_CONNECT = Menu.FIRST + 6;
  97     private static final int MENU_ID_FORGET = Menu.FIRST + 7;
  98     private static final int MENU_ID_MODIFY = Menu.FIRST + 8;
  99     private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9;
 100
 101     public static final int WIFI_DIALOG_ID = 1;
 102     /* package */ static final int WPS_PBC_DIALOG_ID = 2;
 103     private static final int WPS_PIN_DIALOG_ID = 3;
 104     private static final int WRITE_NFC_DIALOG_ID = 6;
 105
 106     // Instance state keys
 107     private static final String SAVE_DIALOG_MODE = "dialog_mode";
 108     private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state";
 109     private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state";
 110
 111     private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list";
 112     private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point";
 113     private static final String PREF_KEY_ACCESS_POINTS = "access_points";
 114     private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings";
 115     private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings";
 116     private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks";
 117
 118     private final Runnable mUpdateAccessPointsRunnable = () -> {
 119         updateAccessPointPreferences();
 120     };
 121     private final Runnable mHideProgressBarRunnable = () -> {
 122         setProgressBarVisible(false);
 123     };
 124
 125     protected WifiManager mWifiManager;
 126     private WifiManager.ActionListener mConnectListener;
 127     private WifiManager.ActionListener mSaveListener;
 128     private WifiManager.ActionListener mForgetListener;
 129
 130     /**
 131      * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to
 132      * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed
 133      * by the Test DPC tool in AFW mode.
 134      */
 135     private boolean mIsRestricted;
 136
 137     private WifiEnabler mWifiEnabler;
 138     // An access point being editted is stored here.
 139     private AccessPoint mSelectedAccessPoint;
 140
 141     private WifiDialog mDialog;
 142     private WriteWifiConfigToNfcDialog mWifiToNfcDialog;
 143
 144     private ProgressBar mProgressHeader;
 145
 146     // this boolean extra specifies whether to disable the Next button when not connected. Used by
 147     // account creation outside of setup wizard.
 148     private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect";
 149     // This string extra specifies a network to open the connect dialog on, so the user can enter
 150     // network credentials.  This is used by quick settings for secured networks.
 151     private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid";
 152
 153     // should Next button only be enabled when we have a connection?
 154     private boolean mEnableNextOnConnection;
 155
 156     // Save the dialog details
 157     private int mDialogMode;
 158     private AccessPoint mDlgAccessPoint;
 159     private Bundle mAccessPointSavedState;
 160     private Bundle mWifiNfcDialogSavedState;
 161
 162     private WifiTracker mWifiTracker;
 163     private String mOpenSsid;
 164
 165     private HandlerThread mBgThread;
 166
 167     private AccessPointPreference.UserBadgeCache mUserBadgeCache;
 168
 169     private PreferenceCategory mConnectedAccessPointPreferenceCategory;
 170     private PreferenceCategory mAccessPointsPreferenceCategory;
 171     private PreferenceCategory mAdditionalSettingsPreferenceCategory;
 172     private Preference mAddPreference;
 173     private Preference mConfigureWifiSettingsPreference;
 174     private Preference mSavedNetworksPreference;
 175     private LinkablePreference mStatusMessagePreference;
 176
 177     // For Search
 178     private static final String DATA_KEY_REFERENCE = "main_toggle_wifi";
 179
 180     /* End of "used in Wifi Setup context" */
 181
 182     public WifiSettings() {
 183         super(DISALLOW_CONFIG_WIFI);
 184     }
 185
 186     @Override
 187     public void onViewCreated(View view, Bundle savedInstanceState) {
 188         super.onViewCreated(view, savedInstanceState);
 189         final Activity activity = getActivity();
 190         if (activity != null) {
 191             mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header);
 192             setProgressBarVisible(false);
 193         }
 194     }
 195
 196     @Override
 197     public void onCreate(Bundle icicle) {
 198         super.onCreate(icicle);
 199
 200         // TODO(b/37429702): Add animations and preference comparator back after initial screen is
 201         // loaded (ODR).
 202         setAnimationAllowed(false);
 203
 204         addPreferencesFromResource(R.xml.wifi_settings);
 205
 206         mConnectedAccessPointPreferenceCategory =
 207                 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS);
 208         mAccessPointsPreferenceCategory =
 209                 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS);
 210         mAdditionalSettingsPreferenceCategory =
 211                 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS);
 212         mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS);
 213         mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS);
 214
 215         Context prefContext = getPrefContext();
 216         mAddPreference = new Preference(prefContext);
 217         mAddPreference.setIcon(R.drawable.ic_menu_add_inset);
 218         mAddPreference.setTitle(R.string.wifi_add_network);
 219         mStatusMessagePreference = new LinkablePreference(prefContext);
 220
 221         mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager());
 222
 223         mIsRestricted = isUiRestricted();
 224
 225         mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND);
 226         mBgThread.start();
 227     }
 228
 229     @Override
 230     public void onDestroy() {
 231         mBgThread.quit();
 232         super.onDestroy();
 233     }
 234
 235     @Override
 236     public void onActivityCreated(Bundle savedInstanceState) {
 237         super.onActivityCreated(savedInstanceState);
 238
 239         mWifiTracker = WifiTrackerFactory.create(
 240                 getActivity(), this, mBgThread.getLooper(), true, true, false);
 241         mWifiManager = mWifiTracker.getManager();
 242
 243         mConnectListener = new WifiManager.ActionListener() {
 244                                    @Override
 245                                    public void onSuccess() {
 246                                    }
 247                                    @Override
 248                                    public void onFailure(int reason) {
 249                                        Activity activity = getActivity();
 250                                        if (activity != null) {
 251                                            Toast.makeText(activity,
 252                                                 R.string.wifi_failed_connect_message,
 253                                                 Toast.LENGTH_SHORT).show();
 254                                        }
 255                                    }
 256                                };
 257
 258         mSaveListener = new WifiManager.ActionListener() {
 259                                 @Override
 260                                 public void onSuccess() {
 261                                 }
 262                                 @Override
 263                                 public void onFailure(int reason) {
 264                                     Activity activity = getActivity();
 265                                     if (activity != null) {
 266                                         Toast.makeText(activity,
 267                                             R.string.wifi_failed_save_message,
 268                                             Toast.LENGTH_SHORT).show();
 269                                     }
 270                                 }
 271                             };
 272
 273         mForgetListener = new WifiManager.ActionListener() {
 274                                    @Override
 275                                    public void onSuccess() {
 276                                    }
 277                                    @Override
 278                                    public void onFailure(int reason) {
 279                                        Activity activity = getActivity();
 280                                        if (activity != null) {
 281                                            Toast.makeText(activity,
 282                                                R.string.wifi_failed_forget_message,
 283                                                Toast.LENGTH_SHORT).show();
 284                                        }
 285                                    }
 286                                };
 287
 288         if (savedInstanceState != null) {
 289             mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE);
 290             if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) {
 291                 mAccessPointSavedState =
 292                     savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE);
 293             }
 294
 295             if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) {
 296                 mWifiNfcDialogSavedState =
 297                     savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE);
 298             }
 299         }
 300
 301         // if we're supposed to enable/disable the Next button based on our current connection
 302         // state, start it off in the right state
 303         Intent intent = getActivity().getIntent();
 304         mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false);
 305
 306         if (mEnableNextOnConnection) {
 307             if (hasNextButton()) {
 308                 final ConnectivityManager connectivity = (ConnectivityManager)
 309                         getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);
 310                 if (connectivity != null) {
 311                     NetworkInfo info = connectivity.getNetworkInfo(
 312                             ConnectivityManager.TYPE_WIFI);
 313                     changeNextButtonState(info.isConnected());
 314                 }
 315             }
 316         }
 317
 318         registerForContextMenu(getListView());
 319         setHasOptionsMenu(true);
 320
 321         if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) {
 322             mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID);
 323         }
 324     }
 325
 326     @Override
 327     public void onDestroyView() {
 328         super.onDestroyView();
 329
 330         if (mWifiEnabler != null) {
 331             mWifiEnabler.teardownSwitchController();
 332         }
 333     }
 334
 335     @Override
 336     public void onStart() {
 337         super.onStart();
 338
 339         // On/off switch is hidden for Setup Wizard (returns null)
 340         mWifiEnabler = createWifiEnabler();
 341
 342         mWifiTracker.startTracking();
 343
 344         if (mIsRestricted) {
 345             if (!isUiRestrictedByOnlyAdmin()) {
 346                 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted);
 347             }
 348             getPreferenceScreen().removeAll();
 349             return;
 350         }
 351
 352         onWifiStateChanged(mWifiManager.getWifiState());
 353     }
 354
 355     /**
 356      * Only update the AP list if there are not any APs currently shown.
 357      *
 358      * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on
 359      * and off. In other use cases, the previous APs will remain until the next update is received
 360      * from {@link WifiTracker}.
 361      */
 362     private void conditionallyForceUpdateAPs() {
 363         if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0
 364                 && mAccessPointsPreferenceCategory.getPreference(0) instanceof
 365                         AccessPointPreference) {
 366             // Make sure we don't update due to callbacks initiated by sticky broadcasts in
 367             // WifiTracker.
 368             Log.d(TAG, "Did not force update APs due to existing APs displayed");
 369             getView().removeCallbacks(mUpdateAccessPointsRunnable);
 370             return;
 371         }
 372         setProgressBarVisible(true);
 373         mWifiTracker.forceUpdate();
 374         if (DEBUG) {
 375             Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints());
 376         }
 377         getView().removeCallbacks(mUpdateAccessPointsRunnable);
 378         updateAccessPointPreferences();
 379     }
 380
 381     /**
 382      * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard)
 383      */
 384     private WifiEnabler createWifiEnabler() {
 385         final SettingsActivity activity = (SettingsActivity) getActivity();
 386         return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()),
 387             mMetricsFeatureProvider);
 388     }
 389
 390     @Override
 391     public void onResume() {
 392         final Activity activity = getActivity();
 393         super.onResume();
 394         if (mWifiEnabler != null) {
 395             mWifiEnabler.resume(activity);
 396         }
 397     }
 398
 399     @Override
 400     public void onPause() {
 401         super.onPause();
 402         if (mWifiEnabler != null) {
 403             mWifiEnabler.pause();
 404         }
 405     }
 406
 407     @Override
 408     public void onStop() {
 409         mWifiTracker.stopTracking();
 410         getView().removeCallbacks(mUpdateAccessPointsRunnable);
 411         getView().removeCallbacks(mHideProgressBarRunnable);
 412         super.onStop();
 413     }
 414
 415     @Override
 416     public int getMetricsCategory() {
 417         return MetricsEvent.WIFI;
 418     }
 419
 420     @Override
 421     public void onSaveInstanceState(Bundle outState) {
 422         super.onSaveInstanceState(outState);
 423
 424         // If the dialog is showing, save its state.
 425         if (mDialog != null && mDialog.isShowing()) {
 426             outState.putInt(SAVE_DIALOG_MODE, mDialogMode);
 427             if (mDlgAccessPoint != null) {
 428                 mAccessPointSavedState = new Bundle();
 429                 mDlgAccessPoint.saveWifiState(mAccessPointSavedState);
 430                 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState);
 431             }
 432         }
 433
 434         if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) {
 435             Bundle savedState = new Bundle();
 436             mWifiToNfcDialog.saveState(savedState);
 437             outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState);
 438         }
 439     }
 440
 441     @Override
 442     public boolean onOptionsItemSelected(MenuItem item) {
 443         // If the user is not allowed to configure wifi, do not handle menu selections.
 444         if (mIsRestricted) {
 445             return false;
 446         }
 447
 448         switch (item.getItemId()) {
 449             case MENU_ID_WPS_PBC:
 450                 showDialog(WPS_PBC_DIALOG_ID);
 451                 return true;
 452             case MENU_ID_WPS_PIN:
 453                 showDialog(WPS_PIN_DIALOG_ID);
 454                 return true;
 455         }
 456         return super.onOptionsItemSelected(item);
 457     }
 458
 459     @Override
 460     public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) {
 461             Preference preference = (Preference) view.getTag();
 462
 463             if (preference instanceof LongPressAccessPointPreference) {
 464                 mSelectedAccessPoint =
 465                         ((LongPressAccessPointPreference) preference).getAccessPoint();
 466                 menu.setHeaderTitle(mSelectedAccessPoint.getSsid());
 467                 if (mSelectedAccessPoint.isConnectable()) {
 468                     menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect);
 469                 }
 470
 471                 WifiConfiguration config = mSelectedAccessPoint.getConfig();
 472                 // Some configs are ineditable
 473                 if (isEditabilityLockedDown(getActivity(), config)) {
 474                     return;
 475                 }
 476
 477                 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) {
 478                     // Allow forgetting a network if either the network is saved or ephemerally
 479                     // connected. (In the latter case, "forget" blacklists the network so it won't
 480                     // be used again, ephemerally).
 481                     menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget);
 482                 }
 483                 if (mSelectedAccessPoint.isSaved()) {
 484                     menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify);
 485                     NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity());
 486                     if (nfcAdapter != null && nfcAdapter.isEnabled() &&
 487                             mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) {
 488                         // Only allow writing of NFC tags for password-protected networks.
 489                         menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc);
 490                     }
 491                 }
 492             }
 493     }
 494
 495     @Override
 496     public boolean onContextItemSelected(MenuItem item) {
 497         if (mSelectedAccessPoint == null) {
 498             return super.onContextItemSelected(item);
 499         }
 500         switch (item.getItemId()) {
 501             case MENU_ID_CONNECT: {
 502                 boolean isSavedNetwork = mSelectedAccessPoint.isSaved();
 503                 if (isSavedNetwork) {
 504                     connect(mSelectedAccessPoint.getConfig(), isSavedNetwork);
 505                 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) {
 506                     /** Bypass dialog for unsecured networks */
 507                     mSelectedAccessPoint.generateOpenNetworkConfig();
 508                     connect(mSelectedAccessPoint.getConfig(), isSavedNetwork);
 509                 } else {
 510                     showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT);
 511                 }
 512                 return true;
 513             }
 514             case MENU_ID_FORGET: {
 515                 forget();
 516                 return true;
 517             }
 518             case MENU_ID_MODIFY: {
 519                 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY);
 520                 return true;
 521             }
 522             case MENU_ID_WRITE_NFC:
 523                 showDialog(WRITE_NFC_DIALOG_ID);
 524                 return true;
 525
 526         }
 527         return super.onContextItemSelected(item);
 528     }
 529
 530     @Override
 531     public boolean onPreferenceTreeClick(Preference preference) {
 532         // If the preference has a fragment set, open that
 533         if (preference.getFragment() != null) {
 534             preference.setOnPreferenceClickListener(null);
 535             return super.onPreferenceTreeClick(preference);
 536         }
 537
 538         if (preference instanceof LongPressAccessPointPreference) {
 539             mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint();
 540             if (mSelectedAccessPoint == null) {
 541                 return false;
 542             }
 543             if (mSelectedAccessPoint.isActive()) {
 544                 return super.onPreferenceTreeClick(preference);
 545             }
 546             /**
 547              * Bypass dialog and connect to unsecured networks, or previously connected saved
 548              * networks, or Passpoint provided networks.
 549              */
 550             WifiConfiguration config = mSelectedAccessPoint.getConfig();
 551             if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) {
 552                 mSelectedAccessPoint.generateOpenNetworkConfig();
 553                 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved());
 554             } else if (mSelectedAccessPoint.isSaved() && config != null
 555                     && config.getNetworkSelectionStatus() != null
 556                     && config.getNetworkSelectionStatus().getHasEverConnected()) {
 557                 connect(config, true /* isSavedNetwork */);
 558             } else if (mSelectedAccessPoint.isPasspoint()) {
 559                 // Access point provided by an installed Passpoint provider, connect using
 560                 // the associated config.
 561                 connect(config, true /* isSavedNetwork */);
 562             } else {
 563                 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT);
 564             }
 565         } else if (preference == mAddPreference) {
 566             onAddNetworkPressed();
 567         } else {
 568             return super.onPreferenceTreeClick(preference);
 569         }
 570         return true;
 571     }
 572
 573     private void showDialog(AccessPoint accessPoint, int dialogMode) {
 574         if (accessPoint != null) {
 575             WifiConfiguration config = accessPoint.getConfig();
 576             if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) {
 577                 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(),
 578                         RestrictedLockUtils.getDeviceOwner(getActivity()));
 579                 return;
 580             }
 581         }
 582
 583         if (mDialog != null) {
 584             removeDialog(WIFI_DIALOG_ID);
 585             mDialog = null;
 586         }
 587
 588         // Save the access point and edit mode
 589         mDlgAccessPoint = accessPoint;
 590         mDialogMode = dialogMode;
 591
 592         showDialog(WIFI_DIALOG_ID);
 593     }
 594
 595     @Override
 596     public Dialog onCreateDialog(int dialogId) {
 597         switch (dialogId) {
 598             case WIFI_DIALOG_ID:
 599                 AccessPoint ap = mDlgAccessPoint; // For manual launch
 600                 if (ap == null) { // For re-launch from saved state
 601                     if (mAccessPointSavedState != null) {
 602                         ap = new AccessPoint(getActivity(), mAccessPointSavedState);
 603                         // For repeated orientation changes
 604                         mDlgAccessPoint = ap;
 605                         // Reset the saved access point data
 606                         mAccessPointSavedState = null;
 607                     }
 608                 }
 609                 // If it's null, fine, it's for Add Network
 610                 mSelectedAccessPoint = ap;
 611                 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode,
 612                         /* no hide submit/connect */ false);
 613                 return mDialog;
 614             case WPS_PBC_DIALOG_ID:
 615                 return new WpsDialog(getActivity(), WpsInfo.PBC);
 616             case WPS_PIN_DIALOG_ID:
 617                 return new WpsDialog(getActivity(), WpsInfo.DISPLAY);
 618             case WRITE_NFC_DIALOG_ID:
 619                 if (mSelectedAccessPoint != null) {
 620                     mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(
 621                             getActivity(),
 622                             mSelectedAccessPoint.getSecurity(),
 623                             new WifiManagerWrapper(mWifiManager));
 624                 } else if (mWifiNfcDialogSavedState != null) {
 625                     mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(),
 626                             mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager));
 627                 }
 628
 629                 return mWifiToNfcDialog;
 630         }
 631         return super.onCreateDialog(dialogId);
 632     }
 633
 634     @Override
 635     public int getDialogMetricsCategory(int dialogId) {
 636         switch (dialogId) {
 637             case WIFI_DIALOG_ID:
 638                 return MetricsEvent.DIALOG_WIFI_AP_EDIT;
 639             case WPS_PBC_DIALOG_ID:
 640                 return MetricsEvent.DIALOG_WIFI_PBC;
 641             case WPS_PIN_DIALOG_ID:
 642                 return MetricsEvent.DIALOG_WIFI_PIN;
 643             case WRITE_NFC_DIALOG_ID:
 644                 return MetricsEvent.DIALOG_WIFI_WRITE_NFC;
 645             default:
 646                 return 0;
 647         }
 648     }
 649
 650     /**
 651      * Called to indicate the list of AccessPoints has been updated and
 652      * getAccessPoints should be called to get the latest information.
 653      */
 654     @Override
 655     public void onAccessPointsChanged() {
 656         Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated");
 657         updateAccessPointsDelayed();
 658     }
 659
 660     /**
 661      * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have
 662      * progress bar displayed before starting to modify APs.
 663      */
 664     private void updateAccessPointsDelayed() {
 665         // Safeguard from some delayed event handling
 666         if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) {
 667             setProgressBarVisible(true);
 668             getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */);
 669         }
 670     }
 671
 672     /** Called when the state of Wifi has changed. */
 673     @Override
 674     public void onWifiStateChanged(int state) {
 675         if (mIsRestricted) {
 676             return;
 677         }
 678
 679         final int wifiState = mWifiManager.getWifiState();
 680         switch (wifiState) {
 681             case WifiManager.WIFI_STATE_ENABLED:
 682                 conditionallyForceUpdateAPs();
 683                 break;
 684
 685             case WifiManager.WIFI_STATE_ENABLING:
 686                 removeConnectedAccessPointPreference();
 687                 mAccessPointsPreferenceCategory.removeAll();
 688                 addMessagePreference(R.string.wifi_starting);
 689                 setProgressBarVisible(true);
 690                 break;
 691
 692             case WifiManager.WIFI_STATE_DISABLING:
 693                 removeConnectedAccessPointPreference();
 694                 mAccessPointsPreferenceCategory.removeAll();
 695                 addMessagePreference(R.string.wifi_stopping);
 696                 break;
 697
 698             case WifiManager.WIFI_STATE_DISABLED:
 699                 setOffMessage();
 700                 setProgressBarVisible(false);
 701                 break;
 702         }
 703     }
 704
 705     /**
 706      * Called when the connection state of wifi has changed and isConnected
 707      * should be called to get the updated state.
 708      */
 709     @Override
 710     public void onConnectedChanged() {
 711         updateAccessPointsDelayed();
 712         changeNextButtonState(mWifiTracker.isConnected());
 713     }
 714
 715     private void updateAccessPointPreferences() {
 716         // in case state has changed
 717         if (!mWifiManager.isWifiEnabled()) {
 718             return;
 719         }
 720         // AccessPoints are sorted by the WifiTracker
 721         final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints();
 722         if (DEBUG) {
 723             Log.d(TAG, "updateAccessPoints called for: " + accessPoints);
 724         }
 725
 726         boolean hasAvailableAccessPoints = false;
 727         mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference);
 728         cacheRemoveAllPrefs(mAccessPointsPreferenceCategory);
 729
 730         int index =
 731                 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0;
 732         int numAccessPoints = accessPoints.size();
 733         for (; index < numAccessPoints; index++) {
 734             AccessPoint accessPoint = accessPoints.get(index);
 735             // Ignore access points that are out of range.
 736             if (accessPoint.isReachable()) {
 737                 String key = accessPoint.getBssid();
 738                 if (TextUtils.isEmpty(key)) {
 739                     key = accessPoint.getSsidStr();
 740                 }
 741                 hasAvailableAccessPoints = true;
 742                 LongPressAccessPointPreference pref =
 743                         (LongPressAccessPointPreference) getCachedPreference(key);
 744                 if (pref != null) {
 745                     pref.setOrder(index);
 746                     continue;
 747                 }
 748                 LongPressAccessPointPreference preference =
 749                         createLongPressActionPointPreference(accessPoint);
 750                 preference.setKey(key);
 751                 preference.setOrder(index);
 752                 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr())
 753                         && !accessPoint.isSaved()
 754                         && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) {
 755                     onPreferenceTreeClick(preference);
 756                     mOpenSsid = null;
 757                 }
 758                 mAccessPointsPreferenceCategory.addPreference(preference);
 759                 accessPoint.setListener(WifiSettings.this);
 760                 preference.refresh();
 761             }
 762         }
 763         removeCachedPrefs(mAccessPointsPreferenceCategory);
 764         mAddPreference.setOrder(index);
 765         mAccessPointsPreferenceCategory.addPreference(mAddPreference);
 766         setAdditionalSettingsSummaries();
 767
 768         if (!hasAvailableAccessPoints) {
 769             setProgressBarVisible(true);
 770             Preference pref = new Preference(getPrefContext());
 771             pref.setSelectable(false);
 772             pref.setSummary(R.string.wifi_empty_list_wifi_on);
 773             pref.setOrder(index++);
 774             pref.setKey(PREF_KEY_EMPTY_WIFI_LIST);
 775             mAccessPointsPreferenceCategory.addPreference(pref);
 776         } else {
 777             // Continuing showing progress bar for an additional delay to overlap with animation
 778             getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */);
 779         }
 780     }
 781
 782     @NonNull
 783     private LongPressAccessPointPreference createLongPressActionPointPreference(
 784             AccessPoint accessPoint) {
 785         return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache,
 786                 false, R.drawable.ic_wifi_signal_0, this);
 787     }
 788
 789     /**
 790      * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was
 791      * shown.
 792      */
 793     private boolean configureConnectedAccessPointPreferenceCategory(
 794             List<AccessPoint> accessPoints) {
 795         if (accessPoints.size() == 0) {
 796             removeConnectedAccessPointPreference();
 797             return false;
 798         }
 799
 800         AccessPoint connectedAp = accessPoints.get(0);
 801         if (!connectedAp.isActive()) {
 802             removeConnectedAccessPointPreference();
 803             return false;
 804         }
 805
 806         // Is the preference category empty?
 807         if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) {
 808             addConnectedAccessPointPreference(connectedAp);
 809             return true;
 810         }
 811
 812         // Is the previous currently connected SSID different from the new one?
 813         if (!((AccessPointPreference)
 814                 mConnectedAccessPointPreferenceCategory.getPreference(0))
 815                         .getAccessPoint().getSsidStr().equals(
 816                                 connectedAp.getSsidStr())) {
 817             removeConnectedAccessPointPreference();
 818             addConnectedAccessPointPreference(connectedAp);
 819             return true;
 820         }
 821
 822         // Else same AP is connected, simply refresh the connected access point preference
 823         // (first and only access point in this category).
 824         ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0))
 825                 .refresh();
 826         return true;
 827     }
 828
 829     /**
 830      * Creates a Preference for the given {@link AccessPoint} and adds it to the
 831      * {@link #mConnectedAccessPointPreferenceCategory}.
 832      */
 833     private void addConnectedAccessPointPreference(AccessPoint connectedAp) {
 834         String key = connectedAp.getBssid();
 835         LongPressAccessPointPreference pref = (LongPressAccessPointPreference)
 836                 getCachedPreference(key);
 837         if (pref == null) {
 838             pref = createLongPressActionPointPreference(connectedAp);
 839         }
 840
 841         // Save the state of the current access point in the bundle so that we can restore it
 842         // in the Wifi Network Details Fragment
 843         pref.getAccessPoint().saveWifiState(pref.getExtras());
 844         pref.setFragment(WifiNetworkDetailsFragment.class.getName());
 845         pref.refresh();
 846
 847         mConnectedAccessPointPreferenceCategory.addPreference(pref);
 848         mConnectedAccessPointPreferenceCategory.setVisible(true);
 849     }
 850
 851     /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */
 852     private void removeConnectedAccessPointPreference() {
 853         mConnectedAccessPointPreferenceCategory.removeAll();
 854         mConnectedAccessPointPreferenceCategory.setVisible(false);
 855     }
 856
 857     private void setAdditionalSettingsSummaries() {
 858         mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference);
 859         final int defaultWakeupAvailable = getResources().getInteger(
 860                 com.android.internal.R.integer.config_wifi_wakeup_available);
 861         boolean wifiWakeupAvailable = Settings.Global.getInt(
 862                 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable)
 863                 == 1;
 864         if (wifiWakeupAvailable) {
 865             boolean wifiWakeupEnabled = Settings.Global.getInt(
 866                     getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1;
 867             mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled
 868                     ? R.string.wifi_configure_settings_preference_summary_wakeup_on
 869                     : R.string.wifi_configure_settings_preference_summary_wakeup_off));
 870         }
 871         int numSavedNetworks = mWifiTracker.getNumSavedNetworks();
 872         if (numSavedNetworks > 0) {
 873             mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference);
 874             mSavedNetworksPreference.setSummary(
 875                     getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary,
 876                             numSavedNetworks, numSavedNetworks));
 877         } else {
 878             mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference);
 879         }
 880     }
 881
 882     private void setOffMessage() {
 883         final CharSequence title = getText(R.string.wifi_empty_list_wifi_off);
 884         // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead,
 885         // read the system settings directly. Because when the device is in Airplane mode, even if
 886         // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off".
 887         final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(),
 888                 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1;
 889         final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text)
 890                 : getText(R.string.wifi_scan_notify_text_scanning_off);
 891         final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() {
 892             @Override
 893             public void onClick() {
 894                 final SettingsActivity activity = (SettingsActivity) getActivity();
 895                 activity.startPreferencePanel(WifiSettings.this,
 896                         ScanningSettings.class.getName(),
 897                         null, R.string.location_scanning_screen_title, null, null, 0);
 898             }
 899         };
 900         mStatusMessagePreference.setText(title, description, clickListener);
 901         removeConnectedAccessPointPreference();
 902         mAccessPointsPreferenceCategory.removeAll();
 903         mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference);
 904     }
 905
 906     private void addMessagePreference(int messageId) {
 907         mStatusMessagePreference.setTitle(messageId);
 908         removeConnectedAccessPointPreference();
 909         mAccessPointsPreferenceCategory.removeAll();
 910         mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference);
 911     }
 912
 913     protected void setProgressBarVisible(boolean visible) {
 914         if (mProgressHeader != null) {
 915             mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE);
 916         }
 917     }
 918
 919     /**
 920      * Renames/replaces "Next" button when appropriate. "Next" button usually exists in
 921      * Wifi setup screens, not in usual wifi settings screen.
 922      *
 923      * @param enabled true when the device is connected to a wifi network.
 924      */
 925     private void changeNextButtonState(boolean enabled) {
 926         if (mEnableNextOnConnection && hasNextButton()) {
 927             getNextButton().setEnabled(enabled);
 928         }
 929     }
 930
 931     @Override
 932     public void onForget(WifiDialog dialog) {
 933         forget();
 934     }
 935
 936     @Override
 937     public void onSubmit(WifiDialog dialog) {
 938         if (mDialog != null) {
 939             submit(mDialog.getController());
 940         }
 941     }
 942
 943     /* package */ void submit(WifiConfigController configController) {
 944
 945         final WifiConfiguration config = configController.getConfig();
 946
 947         if (config == null) {
 948             if (mSelectedAccessPoint != null
 949                     && mSelectedAccessPoint.isSaved()) {
 950                 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */);
 951             }
 952         } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) {
 953             mWifiManager.save(config, mSaveListener);
 954         } else {
 955             mWifiManager.save(config, mSaveListener);
 956             if (mSelectedAccessPoint != null) { // Not an "Add network"
 957                 connect(config, false /* isSavedNetwork */);
 958             }
 959         }
 960
 961         mWifiTracker.resumeScanning();
 962     }
 963
 964     /* package */ void forget() {
 965         mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET);
 966         if (!mSelectedAccessPoint.isSaved()) {
 967             if (mSelectedAccessPoint.getNetworkInfo() != null &&
 968                     mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) {
 969                 // Network is active but has no network ID - must be ephemeral.
 970                 mWifiManager.disableEphemeralNetwork(
 971                         AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr()));
 972             } else {
 973                 // Should not happen, but a monkey seems to trigger it
 974                 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig());
 975                 return;
 976             }
 977         } else if (mSelectedAccessPoint.getConfig().isPasspoint()) {
 978             mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN);
 979         } else {
 980             mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener);
 981         }
 982
 983         mWifiTracker.resumeScanning();
 984
 985         // We need to rename/replace "Next" button in wifi setup context.
 986         changeNextButtonState(false);
 987     }
 988
 989     protected void connect(final WifiConfiguration config, boolean isSavedNetwork) {
 990         // Log subtype if configuration is a saved network.
 991         mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT,
 992                 isSavedNetwork);
 993         mWifiManager.connect(config, mConnectListener);
 994     }
 995
 996     protected void connect(final int networkId, boolean isSavedNetwork) {
 997         // Log subtype if configuration is a saved network.
 998         mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT,
 999                 isSavedNetwork);
1000         mWifiManager.connect(networkId, mConnectListener);
1001     }
1002
1003     /**
1004      * Called when "add network" button is pressed.
1005      */
1006     /* package */ void onAddNetworkPressed() {
1007         mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK);
1008         // No exact access point is selected.
1009         mSelectedAccessPoint = null;
1010         showDialog(null, WifiConfigUiBase.MODE_CONNECT);
1011     }
1012
1013     @Override
1014     protected int getHelpResource() {
1015         return R.string.help_url_wifi;
1016     }
1017
1018     @Override
1019     public void onAccessPointChanged(final AccessPoint accessPoint) {
1020         Log.d(TAG, "onAccessPointChanged (singular) callback initiated");
1021         View view = getView();
1022         if (view != null) {
1023             view.post(new Runnable() {
1024                 @Override
1025                 public void run() {
1026                     Object tag = accessPoint.getTag();
1027                     if (tag != null) {
1028                         ((LongPressAccessPointPreference) tag).refresh();
1029                     }
1030                 }
1031             });
1032         }
1033     }
1034
1035     @Override
1036     public void onLevelChanged(AccessPoint accessPoint) {
1037         ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged();
1038     }
1039
1040     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
1041         new BaseSearchIndexProvider() {
1042             @Override
1043             public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) {
1044                 final List<SearchIndexableRaw> result = new ArrayList<>();
1045                 final Resources res = context.getResources();
1046
1047                 // Add fragment title
1048                 SearchIndexableRaw data = new SearchIndexableRaw(context);
1049                 data.title = res.getString(R.string.wifi_settings);
1050                 data.screenTitle = res.getString(R.string.wifi_settings);
1051                 data.keywords = res.getString(R.string.keywords_wifi);
1052                 data.key = DATA_KEY_REFERENCE;
1053                 result.add(data);
1054
1055                 // Add saved Wi-Fi access points
1056                 final List<AccessPoint> accessPoints =
1057                         WifiTracker.getCurrentAccessPoints(context, true, false, false);
1058                 for (AccessPoint accessPoint : accessPoints) {
1059                     data = new SearchIndexableRaw(context);
1060                     data.title = accessPoint.getSsidStr();
1061                     data.screenTitle = res.getString(R.string.wifi_settings);
1062                     data.enabled = enabled;
1063                     result.add(data);
1064                 }
1065
1066                 return result;
1067             }
1068         };
1069
1070     /**
1071      * Returns true if the config is not editable through Settings.
1072      * @param context Context of caller
1073      * @param config The WiFi config.
1074      * @return true if the config is not editable through Settings.
1075      */
1076     static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) {
1077         return !canModifyNetwork(context, config);
1078     }
1079
1080     /**
1081      * This method is a stripped version of WifiConfigStore.canModifyNetwork.
1082      * TODO: refactor to have only one method.
1083      * @param context Context of caller
1084      * @param config The WiFi config.
1085      * @return true if Settings can modify the config.
1086      */
1087     static boolean canModifyNetwork(Context context, WifiConfiguration config) {
1088         if (config == null) {
1089             return true;
1090         }
1091
1092         final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService(
1093                 Context.DEVICE_POLICY_SERVICE);
1094
1095         // Check if device has DPM capability. If it has and dpm is still null, then we
1096         // treat this case with suspicion and bail out.
1097         final PackageManager pm = context.getPackageManager();
1098         if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) {
1099             return false;
1100         }
1101
1102         boolean isConfigEligibleForLockdown = false;
1103         if (dpm != null) {
1104             final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser();
1105             if (deviceOwner != null) {
1106                 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId();
1107                 try {
1108                     final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(),
1109                             deviceOwnerUserId);
1110                     isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid;
1111                 } catch (NameNotFoundException e) {
1112                     // don't care
1113                 }
1114             }
1115         }
1116         if (!isConfigEligibleForLockdown) {
1117             return true;
1118         }
1119
1120         final ContentResolver resolver = context.getContentResolver();
1121         final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver,
1122                 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0;
1123         return !isLockdownFeatureEnabled;
1124     }
1125
1126     private static class SummaryProvider
1127             implements SummaryLoader.SummaryProvider, OnSummaryChangeListener {
1128
1129         private final Context mContext;
1130         private final SummaryLoader mSummaryLoader;
1131
1132         @VisibleForTesting
1133         WifiSummaryUpdater mSummaryHelper;
1134
1135         public SummaryProvider(Context context, SummaryLoader summaryLoader) {
1136             mContext = context;
1137             mSummaryLoader = summaryLoader;
1138             mSummaryHelper = new WifiSummaryUpdater(mContext, this);
1139         }
1140
1141
1142         @Override
1143         public void setListening(boolean listening) {
1144             mSummaryHelper.register(listening);
1145         }
1146
1147         @Override
1148         public void onSummaryChanged(String summary) {
1149             mSummaryLoader.setSummary(this, summary);
1150         }
1151     }
1152
1153     public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY
1154             = new SummaryLoader.SummaryProviderFactory() {
1155         @Override
1156         public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity,
1157                                                                    SummaryLoader summaryLoader) {
1158             return new SummaryProvider(activity, summaryLoader);
1159         }
1160     };
1161 }