WifiSettings.java revision 00685675c80675696b8a7a0cd36bcc233c93a485
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 17package com.android.settings.wifi; 18 19import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 20 21import android.annotation.NonNull; 22import android.app.Activity; 23import android.app.Dialog; 24import android.app.admin.DevicePolicyManager; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.PackageManager; 30import android.content.pm.PackageManager.NameNotFoundException; 31import android.content.res.Resources; 32import android.net.ConnectivityManager; 33import android.net.NetworkInfo; 34import android.net.NetworkInfo.State; 35import android.net.wifi.WifiConfiguration; 36import android.net.wifi.WifiManager; 37import android.net.wifi.WpsInfo; 38import android.nfc.NfcAdapter; 39import android.os.Bundle; 40import android.os.HandlerThread; 41import android.os.PowerManager; 42import android.os.Process; 43import android.provider.Settings; 44import android.support.annotation.VisibleForTesting; 45import android.support.v7.preference.Preference; 46import android.support.v7.preference.PreferenceCategory; 47import android.util.Log; 48import android.view.ContextMenu; 49import android.view.ContextMenu.ContextMenuInfo; 50import android.view.Menu; 51import android.view.MenuItem; 52import android.view.View; 53import android.widget.Toast; 54 55import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 56import com.android.settings.LinkifyUtils; 57import com.android.settings.R; 58import com.android.settings.RestrictedSettingsFragment; 59import com.android.settings.SettingsActivity; 60import com.android.settings.dashboard.SummaryLoader; 61import com.android.settings.location.ScanningSettings; 62import com.android.settings.search.BaseSearchIndexProvider; 63import com.android.settings.search.Indexable; 64import com.android.settings.search.SearchIndexableRaw; 65import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 66import com.android.settings.widget.SwitchBarController; 67import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 68import com.android.settings.wrapper.WifiManagerWrapper; 69import com.android.settingslib.RestrictedLockUtils; 70import com.android.settingslib.wifi.AccessPoint; 71import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 72import com.android.settingslib.wifi.AccessPointPreference; 73import com.android.settingslib.wifi.WifiTracker; 74import com.android.settingslib.wifi.WifiTrackerFactory; 75 76import java.util.ArrayList; 77import 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 */ 87public class WifiSettings extends RestrictedSettingsFragment 88 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 89 WifiDialog.WifiDialogListener { 90 91 private static final String TAG = "WifiSettings"; 92 93 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 94 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 95 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 96 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 97 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 98 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 99 100 public static final int WIFI_DIALOG_ID = 1; 101 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 102 private static final int WPS_PIN_DIALOG_ID = 3; 103 private static final int WRITE_NFC_DIALOG_ID = 6; 104 105 // Instance state keys 106 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 107 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 108 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 109 110 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 111 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 112 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 113 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 114 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 115 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 116 117 private final Runnable mUpdateAccessPointsRunnable = () -> { 118 updateAccessPointPreferences(); 119 }; 120 private final Runnable mHideProgressBarRunnable = () -> { 121 setProgressBarVisible(false); 122 }; 123 124 protected WifiManager mWifiManager; 125 private WifiManager.ActionListener mConnectListener; 126 private WifiManager.ActionListener mSaveListener; 127 private WifiManager.ActionListener mForgetListener; 128 129 /** 130 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 131 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 132 * by the Test DPC tool in AFW mode. 133 */ 134 private boolean mIsRestricted; 135 136 private WifiEnabler mWifiEnabler; 137 // An access point being editted is stored here. 138 private AccessPoint mSelectedAccessPoint; 139 140 private WifiDialog mDialog; 141 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 142 143 private View mProgressHeader; 144 145 // this boolean extra specifies whether to disable the Next button when not connected. Used by 146 // account creation outside of setup wizard. 147 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 148 // This string extra specifies a network to open the connect dialog on, so the user can enter 149 // network credentials. This is used by quick settings for secured networks, among other 150 // things. 151 public 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 /** 181 * Tracks whether the user initiated a connection via clicking in order to autoscroll to the 182 * network once connected. 183 */ 184 private boolean mClickedConnect; 185 186 /* End of "used in Wifi Setup context" */ 187 188 public WifiSettings() { 189 super(DISALLOW_CONFIG_WIFI); 190 } 191 192 @Override 193 public void onViewCreated(View view, Bundle savedInstanceState) { 194 super.onViewCreated(view, savedInstanceState); 195 final Activity activity = getActivity(); 196 if (activity != null) { 197 mProgressHeader = setPinnedHeaderView(R.layout.wifi_progress_header) 198 .findViewById(R.id.progress_bar_animation); 199 setProgressBarVisible(false); 200 } 201 } 202 203 @Override 204 public void onCreate(Bundle icicle) { 205 super.onCreate(icicle); 206 207 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 208 // loaded (ODR). 209 setAnimationAllowed(false); 210 211 addPreferences(); 212 213 mIsRestricted = isUiRestricted(); 214 215 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 216 mBgThread.start(); 217 } 218 219 private void addPreferences() { 220 addPreferencesFromResource(R.xml.wifi_settings); 221 222 mConnectedAccessPointPreferenceCategory = 223 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 224 mAccessPointsPreferenceCategory = 225 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 226 mAdditionalSettingsPreferenceCategory = 227 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 228 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 229 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 230 231 Context prefContext = getPrefContext(); 232 mAddPreference = new Preference(prefContext); 233 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 234 mAddPreference.setTitle(R.string.wifi_add_network); 235 mStatusMessagePreference = new LinkablePreference(prefContext); 236 237 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 238 } 239 240 @Override 241 public void onDestroy() { 242 mBgThread.quit(); 243 super.onDestroy(); 244 } 245 246 @Override 247 public void onActivityCreated(Bundle savedInstanceState) { 248 super.onActivityCreated(savedInstanceState); 249 250 mWifiTracker = WifiTrackerFactory.create( 251 getActivity(), this, mBgThread.getLooper(), true, true, false); 252 mWifiManager = mWifiTracker.getManager(); 253 254 mConnectListener = new WifiManager.ActionListener() { 255 @Override 256 public void onSuccess() { 257 } 258 @Override 259 public void onFailure(int reason) { 260 Activity activity = getActivity(); 261 if (activity != null) { 262 Toast.makeText(activity, 263 R.string.wifi_failed_connect_message, 264 Toast.LENGTH_SHORT).show(); 265 } 266 } 267 }; 268 269 mSaveListener = new WifiManager.ActionListener() { 270 @Override 271 public void onSuccess() { 272 } 273 @Override 274 public void onFailure(int reason) { 275 Activity activity = getActivity(); 276 if (activity != null) { 277 Toast.makeText(activity, 278 R.string.wifi_failed_save_message, 279 Toast.LENGTH_SHORT).show(); 280 } 281 } 282 }; 283 284 mForgetListener = new WifiManager.ActionListener() { 285 @Override 286 public void onSuccess() { 287 } 288 @Override 289 public void onFailure(int reason) { 290 Activity activity = getActivity(); 291 if (activity != null) { 292 Toast.makeText(activity, 293 R.string.wifi_failed_forget_message, 294 Toast.LENGTH_SHORT).show(); 295 } 296 } 297 }; 298 299 if (savedInstanceState != null) { 300 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 301 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 302 mAccessPointSavedState = 303 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 304 } 305 306 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 307 mWifiNfcDialogSavedState = 308 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 309 } 310 } 311 312 // if we're supposed to enable/disable the Next button based on our current connection 313 // state, start it off in the right state 314 Intent intent = getActivity().getIntent(); 315 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 316 317 if (mEnableNextOnConnection) { 318 if (hasNextButton()) { 319 final ConnectivityManager connectivity = (ConnectivityManager) 320 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 321 if (connectivity != null) { 322 NetworkInfo info = connectivity.getNetworkInfo( 323 ConnectivityManager.TYPE_WIFI); 324 changeNextButtonState(info.isConnected()); 325 } 326 } 327 } 328 329 registerForContextMenu(getListView()); 330 setHasOptionsMenu(true); 331 332 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 333 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 334 } 335 } 336 337 @Override 338 public void onDestroyView() { 339 super.onDestroyView(); 340 341 if (mWifiEnabler != null) { 342 mWifiEnabler.teardownSwitchController(); 343 } 344 } 345 346 @Override 347 public void onStart() { 348 super.onStart(); 349 350 // On/off switch is hidden for Setup Wizard (returns null) 351 mWifiEnabler = createWifiEnabler(); 352 353 mWifiTracker.startTracking(); 354 355 if (mIsRestricted) { 356 restrictUi(); 357 return; 358 } 359 360 onWifiStateChanged(mWifiManager.getWifiState()); 361 } 362 363 private void restrictUi() { 364 if (!isUiRestrictedByOnlyAdmin()) { 365 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 366 } 367 getPreferenceScreen().removeAll(); 368 } 369 370 /** 371 * Only update the AP list if there are not any APs currently shown. 372 * 373 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 374 * and off. In other use cases, the previous APs will remain until the next update is received 375 * from {@link WifiTracker}. 376 */ 377 private void conditionallyForceUpdateAPs() { 378 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 379 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 380 AccessPointPreference) { 381 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 382 // WifiTracker. 383 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 384 getView().removeCallbacks(mUpdateAccessPointsRunnable); 385 return; 386 } 387 setProgressBarVisible(true); 388 mWifiTracker.forceUpdate(); 389 if (WifiTracker.sVerboseLogging) { 390 Log.i(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 391 } 392 getView().removeCallbacks(mUpdateAccessPointsRunnable); 393 updateAccessPointPreferences(); 394 } 395 396 /** 397 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 398 */ 399 private WifiEnabler createWifiEnabler() { 400 final SettingsActivity activity = (SettingsActivity) getActivity(); 401 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 402 mMetricsFeatureProvider); 403 } 404 405 @Override 406 public void onResume() { 407 final Activity activity = getActivity(); 408 super.onResume(); 409 410 // Because RestrictedSettingsFragment's onResume potentially requests authorization, 411 // which changes the restriction state, recalculate it. 412 final boolean alreadyImmutablyRestricted = mIsRestricted; 413 mIsRestricted = isUiRestricted(); 414 if (!alreadyImmutablyRestricted && mIsRestricted) { 415 restrictUi(); 416 } 417 418 if (mWifiEnabler != null) { 419 mWifiEnabler.resume(activity); 420 } 421 } 422 423 @Override 424 public void onPause() { 425 super.onPause(); 426 if (mWifiEnabler != null) { 427 mWifiEnabler.pause(); 428 } 429 } 430 431 @Override 432 public void onStop() { 433 mWifiTracker.stopTracking(); 434 getView().removeCallbacks(mUpdateAccessPointsRunnable); 435 getView().removeCallbacks(mHideProgressBarRunnable); 436 super.onStop(); 437 } 438 439 @Override 440 public void onActivityResult(int requestCode, int resultCode, Intent data) { 441 super.onActivityResult(requestCode, resultCode, data); 442 443 final boolean formerlyRestricted = mIsRestricted; 444 mIsRestricted = isUiRestricted(); 445 if (formerlyRestricted && !mIsRestricted 446 && getPreferenceScreen().getPreferenceCount() == 0) { 447 // De-restrict the ui 448 addPreferences(); 449 } 450 } 451 452 @Override 453 public int getMetricsCategory() { 454 return MetricsEvent.WIFI; 455 } 456 457 @Override 458 public void onSaveInstanceState(Bundle outState) { 459 super.onSaveInstanceState(outState); 460 461 // If the dialog is showing, save its state. 462 if (mDialog != null && mDialog.isShowing()) { 463 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 464 if (mDlgAccessPoint != null) { 465 mAccessPointSavedState = new Bundle(); 466 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 467 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 468 } 469 } 470 471 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 472 Bundle savedState = new Bundle(); 473 mWifiToNfcDialog.saveState(savedState); 474 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 475 } 476 } 477 478 @Override 479 public boolean onOptionsItemSelected(MenuItem item) { 480 // If the user is not allowed to configure wifi, do not handle menu selections. 481 if (mIsRestricted) { 482 return false; 483 } 484 485 switch (item.getItemId()) { 486 case MENU_ID_WPS_PBC: 487 showDialog(WPS_PBC_DIALOG_ID); 488 return true; 489 case MENU_ID_WPS_PIN: 490 showDialog(WPS_PIN_DIALOG_ID); 491 return true; 492 } 493 return super.onOptionsItemSelected(item); 494 } 495 496 @Override 497 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 498 Preference preference = (Preference) view.getTag(); 499 500 if (preference instanceof LongPressAccessPointPreference) { 501 mSelectedAccessPoint = 502 ((LongPressAccessPointPreference) preference).getAccessPoint(); 503 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 504 if (mSelectedAccessPoint.isConnectable()) { 505 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 506 } 507 508 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 509 // Some configs are ineditable 510 if (isEditabilityLockedDown(getActivity(), config)) { 511 return; 512 } 513 514 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 515 // Allow forgetting a network if either the network is saved or ephemerally 516 // connected. (In the latter case, "forget" blacklists the network so it won't 517 // be used again, ephemerally). 518 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 519 } 520 if (mSelectedAccessPoint.isSaved()) { 521 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 522 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 523 if (nfcAdapter != null && nfcAdapter.isEnabled() && 524 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 525 // Only allow writing of NFC tags for password-protected networks. 526 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 527 } 528 } 529 } 530 } 531 532 @Override 533 public boolean onContextItemSelected(MenuItem item) { 534 if (mSelectedAccessPoint == null) { 535 return super.onContextItemSelected(item); 536 } 537 switch (item.getItemId()) { 538 case MENU_ID_CONNECT: { 539 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 540 if (isSavedNetwork) { 541 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 542 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 543 /** Bypass dialog for unsecured networks */ 544 mSelectedAccessPoint.generateOpenNetworkConfig(); 545 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 546 } else { 547 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 548 } 549 return true; 550 } 551 case MENU_ID_FORGET: { 552 forget(); 553 return true; 554 } 555 case MENU_ID_MODIFY: { 556 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 557 return true; 558 } 559 case MENU_ID_WRITE_NFC: 560 showDialog(WRITE_NFC_DIALOG_ID); 561 return true; 562 563 } 564 return super.onContextItemSelected(item); 565 } 566 567 @Override 568 public boolean onPreferenceTreeClick(Preference preference) { 569 // If the preference has a fragment set, open that 570 if (preference.getFragment() != null) { 571 preference.setOnPreferenceClickListener(null); 572 return super.onPreferenceTreeClick(preference); 573 } 574 575 if (preference instanceof LongPressAccessPointPreference) { 576 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 577 if (mSelectedAccessPoint == null) { 578 return false; 579 } 580 if (mSelectedAccessPoint.isActive()) { 581 return super.onPreferenceTreeClick(preference); 582 } 583 /** 584 * Bypass dialog and connect to unsecured networks, or previously connected saved 585 * networks, or Passpoint provided networks. 586 */ 587 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 588 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 589 mSelectedAccessPoint.generateOpenNetworkConfig(); 590 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 591 } else if (mSelectedAccessPoint.isSaved() && config != null 592 && config.getNetworkSelectionStatus() != null 593 && config.getNetworkSelectionStatus().getHasEverConnected()) { 594 connect(config, true /* isSavedNetwork */); 595 } else if (mSelectedAccessPoint.isPasspoint()) { 596 // Access point provided by an installed Passpoint provider, connect using 597 // the associated config. 598 connect(config, true /* isSavedNetwork */); 599 } else { 600 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 601 } 602 } else if (preference == mAddPreference) { 603 onAddNetworkPressed(); 604 } else { 605 return super.onPreferenceTreeClick(preference); 606 } 607 return true; 608 } 609 610 private void showDialog(AccessPoint accessPoint, int dialogMode) { 611 if (accessPoint != null) { 612 WifiConfiguration config = accessPoint.getConfig(); 613 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 614 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 615 RestrictedLockUtils.getDeviceOwner(getActivity())); 616 return; 617 } 618 } 619 620 if (mDialog != null) { 621 removeDialog(WIFI_DIALOG_ID); 622 mDialog = null; 623 } 624 625 // Save the access point and edit mode 626 mDlgAccessPoint = accessPoint; 627 mDialogMode = dialogMode; 628 629 showDialog(WIFI_DIALOG_ID); 630 } 631 632 @Override 633 public Dialog onCreateDialog(int dialogId) { 634 switch (dialogId) { 635 case WIFI_DIALOG_ID: 636 if (mDlgAccessPoint == null && mAccessPointSavedState == null) { 637 // add new network 638 mDialog = WifiDialog 639 .createFullscreen(getActivity(), this, mDlgAccessPoint, mDialogMode); 640 } else { 641 // modify network 642 if (mDlgAccessPoint == null) { 643 // restore AP from save state 644 mDlgAccessPoint = new AccessPoint(getActivity(), mAccessPointSavedState); 645 // Reset the saved access point data 646 mAccessPointSavedState = null; 647 } 648 mDialog = WifiDialog 649 .createModal(getActivity(), this, mDlgAccessPoint, mDialogMode); 650 } 651 652 mSelectedAccessPoint = mDlgAccessPoint; 653 return mDialog; 654 case WPS_PBC_DIALOG_ID: 655 return new WpsDialog(getActivity(), WpsInfo.PBC); 656 case WPS_PIN_DIALOG_ID: 657 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 658 case WRITE_NFC_DIALOG_ID: 659 if (mSelectedAccessPoint != null) { 660 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 661 getActivity(), 662 mSelectedAccessPoint.getSecurity(), 663 new WifiManagerWrapper(mWifiManager)); 664 } else if (mWifiNfcDialogSavedState != null) { 665 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 666 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 667 } 668 669 return mWifiToNfcDialog; 670 } 671 return super.onCreateDialog(dialogId); 672 } 673 674 @Override 675 public int getDialogMetricsCategory(int dialogId) { 676 switch (dialogId) { 677 case WIFI_DIALOG_ID: 678 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 679 case WPS_PBC_DIALOG_ID: 680 return MetricsEvent.DIALOG_WIFI_PBC; 681 case WPS_PIN_DIALOG_ID: 682 return MetricsEvent.DIALOG_WIFI_PIN; 683 case WRITE_NFC_DIALOG_ID: 684 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 685 default: 686 return 0; 687 } 688 } 689 690 /** 691 * Called to indicate the list of AccessPoints has been updated and 692 * getAccessPoints should be called to get the latest information. 693 */ 694 @Override 695 public void onAccessPointsChanged() { 696 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 697 updateAccessPointsDelayed(); 698 } 699 700 /** 701 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 702 * progress bar displayed before starting to modify APs. 703 */ 704 private void updateAccessPointsDelayed() { 705 // Safeguard from some delayed event handling 706 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 707 setProgressBarVisible(true); 708 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 709 } 710 } 711 712 /** Called when the state of Wifi has changed. */ 713 @Override 714 public void onWifiStateChanged(int state) { 715 if (mIsRestricted) { 716 return; 717 } 718 719 final int wifiState = mWifiManager.getWifiState(); 720 switch (wifiState) { 721 case WifiManager.WIFI_STATE_ENABLED: 722 conditionallyForceUpdateAPs(); 723 break; 724 725 case WifiManager.WIFI_STATE_ENABLING: 726 removeConnectedAccessPointPreference(); 727 mAccessPointsPreferenceCategory.removeAll(); 728 addMessagePreference(R.string.wifi_starting); 729 setProgressBarVisible(true); 730 break; 731 732 case WifiManager.WIFI_STATE_DISABLING: 733 removeConnectedAccessPointPreference(); 734 mAccessPointsPreferenceCategory.removeAll(); 735 addMessagePreference(R.string.wifi_stopping); 736 break; 737 738 case WifiManager.WIFI_STATE_DISABLED: 739 setOffMessage(); 740 setAdditionalSettingsSummaries(); 741 setProgressBarVisible(false); 742 break; 743 } 744 } 745 746 /** 747 * Called when the connection state of wifi has changed. 748 */ 749 @Override 750 public void onConnectedChanged() { 751 changeNextButtonState(mWifiTracker.isConnected()); 752 } 753 754 /** Helper method to return whether an AccessPoint is disabled due to a wrong password */ 755 private static boolean isDisabledByWrongPassword(AccessPoint accessPoint) { 756 WifiConfiguration config = accessPoint.getConfig(); 757 if (config == null) { 758 return false; 759 } 760 WifiConfiguration.NetworkSelectionStatus networkStatus = 761 config.getNetworkSelectionStatus(); 762 if (networkStatus == null || networkStatus.isNetworkEnabled()) { 763 return false; 764 } 765 int reason = networkStatus.getNetworkSelectionDisableReason(); 766 return WifiConfiguration.NetworkSelectionStatus.DISABLED_BY_WRONG_PASSWORD == reason; 767 } 768 769 private void updateAccessPointPreferences() { 770 // in case state has changed 771 if (!mWifiManager.isWifiEnabled()) { 772 return; 773 } 774 // AccessPoints are sorted by the WifiTracker 775 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 776 if (WifiTracker.sVerboseLogging) { 777 Log.i(TAG, "updateAccessPoints called for: " + accessPoints); 778 } 779 780 boolean hasAvailableAccessPoints = false; 781 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 782 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 783 784 int index = 785 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 786 int numAccessPoints = accessPoints.size(); 787 for (; index < numAccessPoints; index++) { 788 AccessPoint accessPoint = accessPoints.get(index); 789 // Ignore access points that are out of range. 790 if (accessPoint.isReachable()) { 791 String key = AccessPointPreference.generatePreferenceKey(accessPoint); 792 hasAvailableAccessPoints = true; 793 LongPressAccessPointPreference pref = 794 (LongPressAccessPointPreference) getCachedPreference(key); 795 if (pref != null) { 796 pref.setOrder(index); 797 continue; 798 } 799 LongPressAccessPointPreference preference = 800 createLongPressActionPointPreference(accessPoint); 801 preference.setKey(key); 802 preference.setOrder(index); 803 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 804 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 805 if (!accessPoint.isSaved() || isDisabledByWrongPassword(accessPoint)) { 806 onPreferenceTreeClick(preference); 807 mOpenSsid = null; 808 } 809 } 810 mAccessPointsPreferenceCategory.addPreference(preference); 811 accessPoint.setListener(WifiSettings.this); 812 preference.refresh(); 813 } 814 } 815 removeCachedPrefs(mAccessPointsPreferenceCategory); 816 mAddPreference.setOrder(index); 817 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 818 setAdditionalSettingsSummaries(); 819 820 if (!hasAvailableAccessPoints) { 821 setProgressBarVisible(true); 822 Preference pref = new Preference(getPrefContext()); 823 pref.setSelectable(false); 824 pref.setSummary(R.string.wifi_empty_list_wifi_on); 825 pref.setOrder(index++); 826 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 827 mAccessPointsPreferenceCategory.addPreference(pref); 828 } else { 829 // Continuing showing progress bar for an additional delay to overlap with animation 830 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 831 } 832 } 833 834 @NonNull 835 private LongPressAccessPointPreference createLongPressActionPointPreference( 836 AccessPoint accessPoint) { 837 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 838 false, R.drawable.ic_wifi_signal_0, this); 839 } 840 841 /** 842 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 843 * shown. 844 */ 845 private boolean configureConnectedAccessPointPreferenceCategory( 846 List<AccessPoint> accessPoints) { 847 if (accessPoints.size() == 0) { 848 removeConnectedAccessPointPreference(); 849 return false; 850 } 851 852 AccessPoint connectedAp = accessPoints.get(0); 853 if (!connectedAp.isActive()) { 854 removeConnectedAccessPointPreference(); 855 return false; 856 } 857 858 // Is the preference category empty? 859 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 860 addConnectedAccessPointPreference(connectedAp); 861 return true; 862 } 863 864 // Is the previous currently connected SSID different from the new one? 865 AccessPointPreference preference = (AccessPointPreference) 866 (mConnectedAccessPointPreferenceCategory.getPreference(0)); 867 // The AccessPoints need to be the same reference to ensure that updates are reflected 868 // in the UI. 869 if (preference.getAccessPoint() != connectedAp) { 870 removeConnectedAccessPointPreference(); 871 addConnectedAccessPointPreference(connectedAp); 872 return true; 873 } 874 875 // Else same AP is connected, simply refresh the connected access point preference 876 // (first and only access point in this category). 877 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 878 .refresh(); 879 return true; 880 } 881 882 /** 883 * Creates a Preference for the given {@link AccessPoint} and adds it to the 884 * {@link #mConnectedAccessPointPreferenceCategory}. 885 */ 886 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 887 final LongPressAccessPointPreference pref = getOrCreatePreference(connectedAp); 888 889 // Save the state of the current access point in the bundle so that we can restore it 890 // in the Wifi Network Details Fragment 891 pref.getAccessPoint().saveWifiState(pref.getExtras()); 892 893 // Launch details page on click. 894 pref.setOnPreferenceClickListener(preference -> { 895 SettingsActivity activity = (SettingsActivity) WifiSettings.this.getActivity(); 896 activity.startPreferencePanel(this, 897 WifiNetworkDetailsFragment.class.getName(), pref.getExtras(), 898 R.string.wifi_details_title, null, null, 0); 899 return true; 900 }); 901 pref.refresh(); 902 903 mConnectedAccessPointPreferenceCategory.addPreference(pref); 904 mConnectedAccessPointPreferenceCategory.setVisible(true); 905 if (mClickedConnect) { 906 mClickedConnect = false; 907 scrollToPreference(mConnectedAccessPointPreferenceCategory); 908 } 909 } 910 911 private LongPressAccessPointPreference getOrCreatePreference(AccessPoint ap) { 912 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 913 getCachedPreference(AccessPointPreference.generatePreferenceKey(ap)); 914 if (pref == null) { 915 pref = createLongPressActionPointPreference(ap); 916 } 917 return pref; 918 } 919 920 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 921 private void removeConnectedAccessPointPreference() { 922 mConnectedAccessPointPreferenceCategory.removeAll(); 923 mConnectedAccessPointPreferenceCategory.setVisible(false); 924 } 925 926 private void setAdditionalSettingsSummaries() { 927 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 928 final int defaultWakeupAvailable = getResources().getInteger( 929 com.android.internal.R.integer.config_wifi_wakeup_available); 930 boolean wifiWakeupAvailable = Settings.Global.getInt( 931 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 932 == 1; 933 if (wifiWakeupAvailable) { 934 mConfigureWifiSettingsPreference.setSummary(getString( 935 isWifiWakeupEnabled() 936 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 937 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 938 } 939 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 940 if (numSavedNetworks > 0) { 941 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 942 mSavedNetworksPreference.setSummary( 943 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 944 numSavedNetworks, numSavedNetworks)); 945 } else { 946 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 947 } 948 } 949 950 private boolean isWifiWakeupEnabled() { 951 PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE); 952 ContentResolver contentResolver = getContentResolver(); 953 return Settings.Global.getInt(contentResolver, 954 Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1 955 && Settings.Global.getInt(contentResolver, 956 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1 957 && Settings.Global.getInt(contentResolver, 958 Settings.Global.AIRPLANE_MODE_ON, 0) == 0 959 && Settings.Global.getInt(contentResolver, 960 Settings.Global.NETWORK_RECOMMENDATIONS_ENABLED, 0) == 1 961 && !powerManager.isPowerSaveMode(); 962 } 963 964 private void setOffMessage() { 965 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 966 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 967 // read the system settings directly. Because when the device is in Airplane mode, even if 968 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 969 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 970 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 971 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 972 : getText(R.string.wifi_scan_notify_text_scanning_off); 973 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 974 @Override 975 public void onClick() { 976 final SettingsActivity activity = (SettingsActivity) getActivity(); 977 activity.startPreferencePanel(WifiSettings.this, 978 ScanningSettings.class.getName(), 979 null, R.string.location_scanning_screen_title, null, null, 0); 980 } 981 }; 982 mStatusMessagePreference.setText(title, description, clickListener); 983 removeConnectedAccessPointPreference(); 984 mAccessPointsPreferenceCategory.removeAll(); 985 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 986 } 987 988 private void addMessagePreference(int messageId) { 989 mStatusMessagePreference.setTitle(messageId); 990 removeConnectedAccessPointPreference(); 991 mAccessPointsPreferenceCategory.removeAll(); 992 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 993 } 994 995 protected void setProgressBarVisible(boolean visible) { 996 if (mProgressHeader != null) { 997 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); 998 } 999 } 1000 1001 /** 1002 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 1003 * Wifi setup screens, not in usual wifi settings screen. 1004 * 1005 * @param enabled true when the device is connected to a wifi network. 1006 */ 1007 private void changeNextButtonState(boolean enabled) { 1008 if (mEnableNextOnConnection && hasNextButton()) { 1009 getNextButton().setEnabled(enabled); 1010 } 1011 } 1012 1013 @Override 1014 public void onForget(WifiDialog dialog) { 1015 forget(); 1016 } 1017 1018 @Override 1019 public void onSubmit(WifiDialog dialog) { 1020 if (mDialog != null) { 1021 submit(mDialog.getController()); 1022 } 1023 } 1024 1025 /* package */ void submit(WifiConfigController configController) { 1026 1027 final WifiConfiguration config = configController.getConfig(); 1028 1029 if (config == null) { 1030 if (mSelectedAccessPoint != null 1031 && mSelectedAccessPoint.isSaved()) { 1032 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 1033 } 1034 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 1035 mWifiManager.save(config, mSaveListener); 1036 } else { 1037 mWifiManager.save(config, mSaveListener); 1038 if (mSelectedAccessPoint != null) { // Not an "Add network" 1039 connect(config, false /* isSavedNetwork */); 1040 } 1041 } 1042 1043 mWifiTracker.resumeScanning(); 1044 } 1045 1046 /* package */ void forget() { 1047 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 1048 if (!mSelectedAccessPoint.isSaved()) { 1049 if (mSelectedAccessPoint.getNetworkInfo() != null && 1050 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 1051 // Network is active but has no network ID - must be ephemeral. 1052 mWifiManager.disableEphemeralNetwork( 1053 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 1054 } else { 1055 // Should not happen, but a monkey seems to trigger it 1056 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 1057 return; 1058 } 1059 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 1060 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 1061 } else { 1062 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 1063 } 1064 1065 mWifiTracker.resumeScanning(); 1066 1067 // We need to rename/replace "Next" button in wifi setup context. 1068 changeNextButtonState(false); 1069 } 1070 1071 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 1072 // Log subtype if configuration is a saved network. 1073 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1074 isSavedNetwork); 1075 mWifiManager.connect(config, mConnectListener); 1076 mClickedConnect = true; 1077 } 1078 1079 protected void connect(final int networkId, boolean isSavedNetwork) { 1080 // Log subtype if configuration is a saved network. 1081 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1082 isSavedNetwork); 1083 mWifiManager.connect(networkId, mConnectListener); 1084 } 1085 1086 /** 1087 * Called when "add network" button is pressed. 1088 */ 1089 /* package */ void onAddNetworkPressed() { 1090 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1091 // No exact access point is selected. 1092 mSelectedAccessPoint = null; 1093 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1094 } 1095 1096 @Override 1097 protected int getHelpResource() { 1098 return R.string.help_url_wifi; 1099 } 1100 1101 @Override 1102 public void onAccessPointChanged(final AccessPoint accessPoint) { 1103 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1104 View view = getView(); 1105 if (view != null) { 1106 view.post(new Runnable() { 1107 @Override 1108 public void run() { 1109 Object tag = accessPoint.getTag(); 1110 if (tag != null) { 1111 ((LongPressAccessPointPreference) tag).refresh(); 1112 } 1113 } 1114 }); 1115 } 1116 } 1117 1118 @Override 1119 public void onLevelChanged(AccessPoint accessPoint) { 1120 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1121 } 1122 1123 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1124 new BaseSearchIndexProvider() { 1125 @Override 1126 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1127 final List<SearchIndexableRaw> result = new ArrayList<>(); 1128 final Resources res = context.getResources(); 1129 1130 // Add fragment title 1131 SearchIndexableRaw data = new SearchIndexableRaw(context); 1132 data.title = res.getString(R.string.wifi_settings); 1133 data.screenTitle = res.getString(R.string.wifi_settings); 1134 data.keywords = res.getString(R.string.keywords_wifi); 1135 data.key = DATA_KEY_REFERENCE; 1136 result.add(data); 1137 1138 // Add saved Wi-Fi access points 1139 final List<AccessPoint> accessPoints = 1140 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1141 for (AccessPoint accessPoint : accessPoints) { 1142 data = new SearchIndexableRaw(context); 1143 data.title = accessPoint.getSsidStr(); 1144 data.screenTitle = res.getString(R.string.wifi_settings); 1145 data.enabled = enabled; 1146 result.add(data); 1147 } 1148 1149 return result; 1150 } 1151 }; 1152 1153 /** 1154 * Returns true if the config is not editable through Settings. 1155 * @param context Context of caller 1156 * @param config The WiFi config. 1157 * @return true if the config is not editable through Settings. 1158 */ 1159 public static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1160 return !canModifyNetwork(context, config); 1161 } 1162 1163 /** 1164 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1165 * TODO: refactor to have only one method. 1166 * @param context Context of caller 1167 * @param config The WiFi config. 1168 * @return true if Settings can modify the config. 1169 */ 1170 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1171 if (config == null) { 1172 return true; 1173 } 1174 1175 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1176 Context.DEVICE_POLICY_SERVICE); 1177 1178 // Check if device has DPM capability. If it has and dpm is still null, then we 1179 // treat this case with suspicion and bail out. 1180 final PackageManager pm = context.getPackageManager(); 1181 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1182 return false; 1183 } 1184 1185 boolean isConfigEligibleForLockdown = false; 1186 if (dpm != null) { 1187 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1188 if (deviceOwner != null) { 1189 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1190 try { 1191 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1192 deviceOwnerUserId); 1193 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1194 } catch (NameNotFoundException e) { 1195 // don't care 1196 } 1197 } 1198 } 1199 if (!isConfigEligibleForLockdown) { 1200 return true; 1201 } 1202 1203 final ContentResolver resolver = context.getContentResolver(); 1204 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1205 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1206 return !isLockdownFeatureEnabled; 1207 } 1208 1209 private static class SummaryProvider 1210 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1211 1212 private final Context mContext; 1213 private final SummaryLoader mSummaryLoader; 1214 1215 @VisibleForTesting 1216 WifiSummaryUpdater mSummaryHelper; 1217 1218 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1219 mContext = context; 1220 mSummaryLoader = summaryLoader; 1221 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1222 } 1223 1224 1225 @Override 1226 public void setListening(boolean listening) { 1227 mSummaryHelper.register(listening); 1228 } 1229 1230 @Override 1231 public void onSummaryChanged(String summary) { 1232 mSummaryLoader.setSummary(this, summary); 1233 } 1234 } 1235 1236 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1237 = new SummaryLoader.SummaryProviderFactory() { 1238 @Override 1239 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1240 SummaryLoader summaryLoader) { 1241 return new SummaryProvider(activity, summaryLoader); 1242 } 1243 }; 1244} 1245