WifiSettings.java revision 8adf634a54c69e8f30e934101f701871beaea014
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.Process; 42import android.provider.Settings; 43import android.support.annotation.VisibleForTesting; 44import android.support.v7.preference.Preference; 45import android.support.v7.preference.PreferenceCategory; 46import android.util.Log; 47import android.view.ContextMenu; 48import android.view.ContextMenu.ContextMenuInfo; 49import android.view.Menu; 50import android.view.MenuItem; 51import android.view.View; 52import android.widget.Toast; 53 54import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 55import com.android.settings.LinkifyUtils; 56import com.android.settings.R; 57import com.android.settings.RestrictedSettingsFragment; 58import com.android.settings.SettingsActivity; 59import com.android.settings.dashboard.SummaryLoader; 60import com.android.settings.location.ScanningSettings; 61import com.android.settings.search.BaseSearchIndexProvider; 62import com.android.settings.search.Indexable; 63import com.android.settings.search.SearchIndexableRaw; 64import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 65import com.android.settings.widget.SwitchBarController; 66import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 67import com.android.settingslib.RestrictedLockUtils; 68import com.android.settingslib.wifi.AccessPoint; 69import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 70import com.android.settingslib.wifi.AccessPointPreference; 71import com.android.settingslib.wifi.WifiTracker; 72import com.android.settingslib.wifi.WifiTrackerFactory; 73 74import java.util.ArrayList; 75import java.util.List; 76 77/** 78 * Two types of UI are provided here. 79 * 80 * The first is for "usual Settings", appearing as any other Setup fragment. 81 * 82 * The second is for Setup Wizard, with a simplified interface that hides the action bar 83 * and menus. 84 */ 85public class WifiSettings extends RestrictedSettingsFragment 86 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 87 WifiDialog.WifiDialogListener { 88 89 private static final String TAG = "WifiSettings"; 90 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 91 92 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 93 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 94 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 95 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 96 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 97 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 98 99 public static final int WIFI_DIALOG_ID = 1; 100 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 101 private static final int WPS_PIN_DIALOG_ID = 3; 102 private static final int WRITE_NFC_DIALOG_ID = 6; 103 104 // Instance state keys 105 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 106 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 107 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 108 109 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 110 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 111 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 112 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 113 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 114 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 115 116 private final Runnable mUpdateAccessPointsRunnable = () -> { 117 updateAccessPointPreferences(); 118 }; 119 private final Runnable mHideProgressBarRunnable = () -> { 120 setProgressBarVisible(false); 121 }; 122 123 protected WifiManager mWifiManager; 124 private WifiManager.ActionListener mConnectListener; 125 private WifiManager.ActionListener mSaveListener; 126 private WifiManager.ActionListener mForgetListener; 127 128 /** 129 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 130 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 131 * by the Test DPC tool in AFW mode. 132 */ 133 private boolean mIsRestricted; 134 135 private WifiEnabler mWifiEnabler; 136 // An access point being editted is stored here. 137 private AccessPoint mSelectedAccessPoint; 138 139 private WifiDialog mDialog; 140 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 141 142 private View mProgressHeader; 143 144 // this boolean extra specifies whether to disable the Next button when not connected. Used by 145 // account creation outside of setup wizard. 146 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 147 // This string extra specifies a network to open the connect dialog on, so the user can enter 148 // network credentials. This is used by quick settings for secured networks, among other 149 // things. 150 public static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 151 152 // should Next button only be enabled when we have a connection? 153 private boolean mEnableNextOnConnection; 154 155 // Save the dialog details 156 private int mDialogMode; 157 private AccessPoint mDlgAccessPoint; 158 private Bundle mAccessPointSavedState; 159 private Bundle mWifiNfcDialogSavedState; 160 161 private WifiTracker mWifiTracker; 162 private String mOpenSsid; 163 164 private HandlerThread mBgThread; 165 166 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 167 168 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 169 private PreferenceCategory mAccessPointsPreferenceCategory; 170 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 171 private Preference mAddPreference; 172 private Preference mConfigureWifiSettingsPreference; 173 private Preference mSavedNetworksPreference; 174 private LinkablePreference mStatusMessagePreference; 175 176 // For Search 177 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 178 179 /** 180 * Tracks whether the user initiated a connection via clicking in order to autoscroll to the 181 * network once connected. 182 */ 183 private boolean mClickedConnect; 184 185 /* End of "used in Wifi Setup context" */ 186 187 public WifiSettings() { 188 super(DISALLOW_CONFIG_WIFI); 189 } 190 191 @Override 192 public void onViewCreated(View view, Bundle savedInstanceState) { 193 super.onViewCreated(view, savedInstanceState); 194 final Activity activity = getActivity(); 195 if (activity != null) { 196 mProgressHeader = setPinnedHeaderView(R.layout.wifi_progress_header) 197 .findViewById(R.id.progress_bar_animation); 198 setProgressBarVisible(false); 199 } 200 } 201 202 @Override 203 public void onCreate(Bundle icicle) { 204 super.onCreate(icicle); 205 206 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 207 // loaded (ODR). 208 setAnimationAllowed(false); 209 210 addPreferences(); 211 212 mIsRestricted = isUiRestricted(); 213 214 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 215 mBgThread.start(); 216 } 217 218 private void addPreferences() { 219 addPreferencesFromResource(R.xml.wifi_settings); 220 221 mConnectedAccessPointPreferenceCategory = 222 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 223 mAccessPointsPreferenceCategory = 224 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 225 mAdditionalSettingsPreferenceCategory = 226 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 227 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 228 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 229 230 Context prefContext = getPrefContext(); 231 mAddPreference = new Preference(prefContext); 232 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 233 mAddPreference.setTitle(R.string.wifi_add_network); 234 mStatusMessagePreference = new LinkablePreference(prefContext); 235 236 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 237 } 238 239 @Override 240 public void onDestroy() { 241 mBgThread.quit(); 242 super.onDestroy(); 243 } 244 245 @Override 246 public void onActivityCreated(Bundle savedInstanceState) { 247 super.onActivityCreated(savedInstanceState); 248 249 mWifiTracker = WifiTrackerFactory.create( 250 getActivity(), this, mBgThread.getLooper(), true, true, false); 251 mWifiManager = mWifiTracker.getManager(); 252 253 mConnectListener = new WifiManager.ActionListener() { 254 @Override 255 public void onSuccess() { 256 } 257 @Override 258 public void onFailure(int reason) { 259 Activity activity = getActivity(); 260 if (activity != null) { 261 Toast.makeText(activity, 262 R.string.wifi_failed_connect_message, 263 Toast.LENGTH_SHORT).show(); 264 } 265 } 266 }; 267 268 mSaveListener = new WifiManager.ActionListener() { 269 @Override 270 public void onSuccess() { 271 } 272 @Override 273 public void onFailure(int reason) { 274 Activity activity = getActivity(); 275 if (activity != null) { 276 Toast.makeText(activity, 277 R.string.wifi_failed_save_message, 278 Toast.LENGTH_SHORT).show(); 279 } 280 } 281 }; 282 283 mForgetListener = new WifiManager.ActionListener() { 284 @Override 285 public void onSuccess() { 286 } 287 @Override 288 public void onFailure(int reason) { 289 Activity activity = getActivity(); 290 if (activity != null) { 291 Toast.makeText(activity, 292 R.string.wifi_failed_forget_message, 293 Toast.LENGTH_SHORT).show(); 294 } 295 } 296 }; 297 298 if (savedInstanceState != null) { 299 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 300 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 301 mAccessPointSavedState = 302 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 303 } 304 305 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 306 mWifiNfcDialogSavedState = 307 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 308 } 309 } 310 311 // if we're supposed to enable/disable the Next button based on our current connection 312 // state, start it off in the right state 313 Intent intent = getActivity().getIntent(); 314 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 315 316 if (mEnableNextOnConnection) { 317 if (hasNextButton()) { 318 final ConnectivityManager connectivity = (ConnectivityManager) 319 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 320 if (connectivity != null) { 321 NetworkInfo info = connectivity.getNetworkInfo( 322 ConnectivityManager.TYPE_WIFI); 323 changeNextButtonState(info.isConnected()); 324 } 325 } 326 } 327 328 registerForContextMenu(getListView()); 329 setHasOptionsMenu(true); 330 331 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 332 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 333 } 334 } 335 336 @Override 337 public void onDestroyView() { 338 super.onDestroyView(); 339 340 if (mWifiEnabler != null) { 341 mWifiEnabler.teardownSwitchController(); 342 } 343 } 344 345 @Override 346 public void onStart() { 347 super.onStart(); 348 349 // On/off switch is hidden for Setup Wizard (returns null) 350 mWifiEnabler = createWifiEnabler(); 351 352 mWifiTracker.startTracking(); 353 354 if (mIsRestricted) { 355 restrictUi(); 356 return; 357 } 358 359 onWifiStateChanged(mWifiManager.getWifiState()); 360 } 361 362 private void restrictUi() { 363 if (!isUiRestrictedByOnlyAdmin()) { 364 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 365 } 366 getPreferenceScreen().removeAll(); 367 } 368 369 /** 370 * Only update the AP list if there are not any APs currently shown. 371 * 372 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 373 * and off. In other use cases, the previous APs will remain until the next update is received 374 * from {@link WifiTracker}. 375 */ 376 private void conditionallyForceUpdateAPs() { 377 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 378 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 379 AccessPointPreference) { 380 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 381 // WifiTracker. 382 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 383 getView().removeCallbacks(mUpdateAccessPointsRunnable); 384 return; 385 } 386 setProgressBarVisible(true); 387 mWifiTracker.forceUpdate(); 388 if (DEBUG) { 389 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 390 } 391 getView().removeCallbacks(mUpdateAccessPointsRunnable); 392 updateAccessPointPreferences(); 393 } 394 395 /** 396 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 397 */ 398 private WifiEnabler createWifiEnabler() { 399 final SettingsActivity activity = (SettingsActivity) getActivity(); 400 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 401 mMetricsFeatureProvider); 402 } 403 404 @Override 405 public void onResume() { 406 final Activity activity = getActivity(); 407 super.onResume(); 408 409 // Because RestrictedSettingsFragment's onResume potentially requests authorization, 410 // which changes the restriction state, recalculate it. 411 final boolean alreadyImmutablyRestricted = mIsRestricted; 412 mIsRestricted = isUiRestricted(); 413 if (!alreadyImmutablyRestricted && mIsRestricted) { 414 restrictUi(); 415 } 416 417 if (mWifiEnabler != null) { 418 mWifiEnabler.resume(activity); 419 } 420 } 421 422 @Override 423 public void onPause() { 424 super.onPause(); 425 if (mWifiEnabler != null) { 426 mWifiEnabler.pause(); 427 } 428 } 429 430 @Override 431 public void onStop() { 432 mWifiTracker.stopTracking(); 433 getView().removeCallbacks(mUpdateAccessPointsRunnable); 434 getView().removeCallbacks(mHideProgressBarRunnable); 435 super.onStop(); 436 } 437 438 @Override 439 public void onActivityResult(int requestCode, int resultCode, Intent data) { 440 super.onActivityResult(requestCode, resultCode, data); 441 442 final boolean formerlyRestricted = mIsRestricted; 443 mIsRestricted = isUiRestricted(); 444 if (formerlyRestricted && !mIsRestricted 445 && getPreferenceScreen().getPreferenceCount() == 0) { 446 // De-restrict the ui 447 addPreferences(); 448 } 449 } 450 451 @Override 452 public int getMetricsCategory() { 453 return MetricsEvent.WIFI; 454 } 455 456 @Override 457 public void onSaveInstanceState(Bundle outState) { 458 super.onSaveInstanceState(outState); 459 460 // If the dialog is showing, save its state. 461 if (mDialog != null && mDialog.isShowing()) { 462 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 463 if (mDlgAccessPoint != null) { 464 mAccessPointSavedState = new Bundle(); 465 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 466 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 467 } 468 } 469 470 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 471 Bundle savedState = new Bundle(); 472 mWifiToNfcDialog.saveState(savedState); 473 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 474 } 475 } 476 477 @Override 478 public boolean onOptionsItemSelected(MenuItem item) { 479 // If the user is not allowed to configure wifi, do not handle menu selections. 480 if (mIsRestricted) { 481 return false; 482 } 483 484 switch (item.getItemId()) { 485 case MENU_ID_WPS_PBC: 486 showDialog(WPS_PBC_DIALOG_ID); 487 return true; 488 case MENU_ID_WPS_PIN: 489 showDialog(WPS_PIN_DIALOG_ID); 490 return true; 491 } 492 return super.onOptionsItemSelected(item); 493 } 494 495 @Override 496 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 497 Preference preference = (Preference) view.getTag(); 498 499 if (preference instanceof LongPressAccessPointPreference) { 500 mSelectedAccessPoint = 501 ((LongPressAccessPointPreference) preference).getAccessPoint(); 502 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 503 if (mSelectedAccessPoint.isConnectable()) { 504 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 505 } 506 507 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 508 // Some configs are ineditable 509 if (isEditabilityLockedDown(getActivity(), config)) { 510 return; 511 } 512 513 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 514 // Allow forgetting a network if either the network is saved or ephemerally 515 // connected. (In the latter case, "forget" blacklists the network so it won't 516 // be used again, ephemerally). 517 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 518 } 519 if (mSelectedAccessPoint.isSaved()) { 520 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 521 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 522 if (nfcAdapter != null && nfcAdapter.isEnabled() && 523 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 524 // Only allow writing of NFC tags for password-protected networks. 525 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 526 } 527 } 528 } 529 } 530 531 @Override 532 public boolean onContextItemSelected(MenuItem item) { 533 if (mSelectedAccessPoint == null) { 534 return super.onContextItemSelected(item); 535 } 536 switch (item.getItemId()) { 537 case MENU_ID_CONNECT: { 538 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 539 if (isSavedNetwork) { 540 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 541 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 542 /** Bypass dialog for unsecured networks */ 543 mSelectedAccessPoint.generateOpenNetworkConfig(); 544 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 545 } else { 546 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 547 } 548 return true; 549 } 550 case MENU_ID_FORGET: { 551 forget(); 552 return true; 553 } 554 case MENU_ID_MODIFY: { 555 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 556 return true; 557 } 558 case MENU_ID_WRITE_NFC: 559 showDialog(WRITE_NFC_DIALOG_ID); 560 return true; 561 562 } 563 return super.onContextItemSelected(item); 564 } 565 566 @Override 567 public boolean onPreferenceTreeClick(Preference preference) { 568 // If the preference has a fragment set, open that 569 if (preference.getFragment() != null) { 570 preference.setOnPreferenceClickListener(null); 571 return super.onPreferenceTreeClick(preference); 572 } 573 574 if (preference instanceof LongPressAccessPointPreference) { 575 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 576 if (mSelectedAccessPoint == null) { 577 return false; 578 } 579 if (mSelectedAccessPoint.isActive()) { 580 return super.onPreferenceTreeClick(preference); 581 } 582 /** 583 * Bypass dialog and connect to unsecured networks, or previously connected saved 584 * networks, or Passpoint provided networks. 585 */ 586 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 587 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 588 mSelectedAccessPoint.generateOpenNetworkConfig(); 589 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 590 } else if (mSelectedAccessPoint.isSaved() && config != null 591 && config.getNetworkSelectionStatus() != null 592 && config.getNetworkSelectionStatus().getHasEverConnected()) { 593 connect(config, true /* isSavedNetwork */); 594 } else if (mSelectedAccessPoint.isPasspoint()) { 595 // Access point provided by an installed Passpoint provider, connect using 596 // the associated config. 597 connect(config, true /* isSavedNetwork */); 598 } else { 599 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 600 } 601 } else if (preference == mAddPreference) { 602 onAddNetworkPressed(); 603 } else { 604 return super.onPreferenceTreeClick(preference); 605 } 606 return true; 607 } 608 609 private void showDialog(AccessPoint accessPoint, int dialogMode) { 610 if (accessPoint != null) { 611 WifiConfiguration config = accessPoint.getConfig(); 612 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 613 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 614 RestrictedLockUtils.getDeviceOwner(getActivity())); 615 return; 616 } 617 } 618 619 if (mDialog != null) { 620 removeDialog(WIFI_DIALOG_ID); 621 mDialog = null; 622 } 623 624 // Save the access point and edit mode 625 mDlgAccessPoint = accessPoint; 626 mDialogMode = dialogMode; 627 628 showDialog(WIFI_DIALOG_ID); 629 } 630 631 @Override 632 public Dialog onCreateDialog(int dialogId) { 633 switch (dialogId) { 634 case WIFI_DIALOG_ID: 635 if (mDlgAccessPoint == null && mAccessPointSavedState == null) { 636 // add new network 637 mDialog = WifiDialog 638 .createFullscreen(getActivity(), this, mDlgAccessPoint, mDialogMode); 639 } else { 640 // modify network 641 if (mDlgAccessPoint == null) { 642 // restore AP from save state 643 mDlgAccessPoint = new AccessPoint(getActivity(), mAccessPointSavedState); 644 // Reset the saved access point data 645 mAccessPointSavedState = null; 646 } 647 mDialog = WifiDialog 648 .createModal(getActivity(), this, mDlgAccessPoint, mDialogMode); 649 } 650 651 mSelectedAccessPoint = mDlgAccessPoint; 652 return mDialog; 653 case WPS_PBC_DIALOG_ID: 654 return new WpsDialog(getActivity(), WpsInfo.PBC); 655 case WPS_PIN_DIALOG_ID: 656 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 657 case WRITE_NFC_DIALOG_ID: 658 if (mSelectedAccessPoint != null) { 659 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 660 getActivity(), 661 mSelectedAccessPoint.getSecurity(), 662 new WifiManagerWrapper(mWifiManager)); 663 } else if (mWifiNfcDialogSavedState != null) { 664 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 665 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 666 } 667 668 return mWifiToNfcDialog; 669 } 670 return super.onCreateDialog(dialogId); 671 } 672 673 @Override 674 public int getDialogMetricsCategory(int dialogId) { 675 switch (dialogId) { 676 case WIFI_DIALOG_ID: 677 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 678 case WPS_PBC_DIALOG_ID: 679 return MetricsEvent.DIALOG_WIFI_PBC; 680 case WPS_PIN_DIALOG_ID: 681 return MetricsEvent.DIALOG_WIFI_PIN; 682 case WRITE_NFC_DIALOG_ID: 683 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 684 default: 685 return 0; 686 } 687 } 688 689 /** 690 * Called to indicate the list of AccessPoints has been updated and 691 * getAccessPoints should be called to get the latest information. 692 */ 693 @Override 694 public void onAccessPointsChanged() { 695 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 696 updateAccessPointsDelayed(); 697 } 698 699 /** 700 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 701 * progress bar displayed before starting to modify APs. 702 */ 703 private void updateAccessPointsDelayed() { 704 // Safeguard from some delayed event handling 705 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 706 setProgressBarVisible(true); 707 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 708 } 709 } 710 711 /** Called when the state of Wifi has changed. */ 712 @Override 713 public void onWifiStateChanged(int state) { 714 if (mIsRestricted) { 715 return; 716 } 717 718 final int wifiState = mWifiManager.getWifiState(); 719 switch (wifiState) { 720 case WifiManager.WIFI_STATE_ENABLED: 721 conditionallyForceUpdateAPs(); 722 break; 723 724 case WifiManager.WIFI_STATE_ENABLING: 725 removeConnectedAccessPointPreference(); 726 mAccessPointsPreferenceCategory.removeAll(); 727 addMessagePreference(R.string.wifi_starting); 728 setProgressBarVisible(true); 729 break; 730 731 case WifiManager.WIFI_STATE_DISABLING: 732 removeConnectedAccessPointPreference(); 733 mAccessPointsPreferenceCategory.removeAll(); 734 addMessagePreference(R.string.wifi_stopping); 735 break; 736 737 case WifiManager.WIFI_STATE_DISABLED: 738 setOffMessage(); 739 setAdditionalSettingsSummaries(); 740 setProgressBarVisible(false); 741 break; 742 } 743 } 744 745 /** 746 * Called when the connection state of wifi has changed. 747 */ 748 @Override 749 public void onConnectedChanged() { 750 changeNextButtonState(mWifiTracker.isConnected()); 751 } 752 753 /** Helper method to return whether an AccessPoint is disabled due to a wrong password */ 754 private static boolean isDisabledByWrongPassword(AccessPoint accessPoint) { 755 WifiConfiguration config = accessPoint.getConfig(); 756 if (config == null) { 757 return false; 758 } 759 WifiConfiguration.NetworkSelectionStatus networkStatus = 760 config.getNetworkSelectionStatus(); 761 if (networkStatus == null || networkStatus.isNetworkEnabled()) { 762 return false; 763 } 764 int reason = networkStatus.getNetworkSelectionDisableReason(); 765 return WifiConfiguration.NetworkSelectionStatus.DISABLED_BY_WRONG_PASSWORD == reason; 766 } 767 768 private void updateAccessPointPreferences() { 769 // in case state has changed 770 if (!mWifiManager.isWifiEnabled()) { 771 return; 772 } 773 // AccessPoints are sorted by the WifiTracker 774 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 775 if (DEBUG) { 776 Log.d(TAG, "updateAccessPoints called for: " + accessPoints); 777 } 778 779 boolean hasAvailableAccessPoints = false; 780 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 781 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 782 783 int index = 784 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 785 int numAccessPoints = accessPoints.size(); 786 for (; index < numAccessPoints; index++) { 787 AccessPoint accessPoint = accessPoints.get(index); 788 // Ignore access points that are out of range. 789 if (accessPoint.isReachable()) { 790 String key = AccessPointPreference.generatePreferenceKey(accessPoint); 791 hasAvailableAccessPoints = true; 792 LongPressAccessPointPreference pref = 793 (LongPressAccessPointPreference) getCachedPreference(key); 794 if (pref != null) { 795 pref.setOrder(index); 796 continue; 797 } 798 LongPressAccessPointPreference preference = 799 createLongPressActionPointPreference(accessPoint); 800 preference.setKey(key); 801 preference.setOrder(index); 802 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 803 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 804 if (!accessPoint.isSaved() || isDisabledByWrongPassword(accessPoint)) { 805 onPreferenceTreeClick(preference); 806 mOpenSsid = null; 807 } 808 } 809 mAccessPointsPreferenceCategory.addPreference(preference); 810 accessPoint.setListener(WifiSettings.this); 811 preference.refresh(); 812 } 813 } 814 removeCachedPrefs(mAccessPointsPreferenceCategory); 815 mAddPreference.setOrder(index); 816 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 817 setAdditionalSettingsSummaries(); 818 819 if (!hasAvailableAccessPoints) { 820 setProgressBarVisible(true); 821 Preference pref = new Preference(getPrefContext()); 822 pref.setSelectable(false); 823 pref.setSummary(R.string.wifi_empty_list_wifi_on); 824 pref.setOrder(index++); 825 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 826 mAccessPointsPreferenceCategory.addPreference(pref); 827 } else { 828 // Continuing showing progress bar for an additional delay to overlap with animation 829 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 830 } 831 } 832 833 @NonNull 834 private LongPressAccessPointPreference createLongPressActionPointPreference( 835 AccessPoint accessPoint) { 836 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 837 false, R.drawable.ic_wifi_signal_0, this); 838 } 839 840 /** 841 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 842 * shown. 843 */ 844 private boolean configureConnectedAccessPointPreferenceCategory( 845 List<AccessPoint> accessPoints) { 846 if (accessPoints.size() == 0) { 847 removeConnectedAccessPointPreference(); 848 return false; 849 } 850 851 AccessPoint connectedAp = accessPoints.get(0); 852 if (!connectedAp.isActive()) { 853 removeConnectedAccessPointPreference(); 854 return false; 855 } 856 857 // Is the preference category empty? 858 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 859 addConnectedAccessPointPreference(connectedAp); 860 return true; 861 } 862 863 // Is the previous currently connected SSID different from the new one? 864 AccessPointPreference preference = (AccessPointPreference) 865 (mConnectedAccessPointPreferenceCategory.getPreference(0)); 866 // The AccessPoints need to be the same reference to ensure that updates are reflected 867 // in the UI. 868 if (preference.getAccessPoint() != connectedAp) { 869 removeConnectedAccessPointPreference(); 870 addConnectedAccessPointPreference(connectedAp); 871 return true; 872 } 873 874 // Else same AP is connected, simply refresh the connected access point preference 875 // (first and only access point in this category). 876 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 877 .refresh(); 878 return true; 879 } 880 881 /** 882 * Creates a Preference for the given {@link AccessPoint} and adds it to the 883 * {@link #mConnectedAccessPointPreferenceCategory}. 884 */ 885 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 886 String key = connectedAp.getBssid(); 887 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 888 getCachedPreference(key); 889 if (pref == null) { 890 pref = createLongPressActionPointPreference(connectedAp); 891 } 892 893 // Save the state of the current access point in the bundle so that we can restore it 894 // in the Wifi Network Details Fragment 895 pref.getAccessPoint().saveWifiState(pref.getExtras()); 896 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 897 pref.refresh(); 898 899 mConnectedAccessPointPreferenceCategory.addPreference(pref); 900 mConnectedAccessPointPreferenceCategory.setVisible(true); 901 if (mClickedConnect) { 902 mClickedConnect = false; 903 scrollToPreference(mConnectedAccessPointPreferenceCategory); 904 } 905 } 906 907 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 908 private void removeConnectedAccessPointPreference() { 909 mConnectedAccessPointPreferenceCategory.removeAll(); 910 mConnectedAccessPointPreferenceCategory.setVisible(false); 911 } 912 913 private void setAdditionalSettingsSummaries() { 914 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 915 final int defaultWakeupAvailable = getResources().getInteger( 916 com.android.internal.R.integer.config_wifi_wakeup_available); 917 boolean wifiWakeupAvailable = Settings.Global.getInt( 918 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 919 == 1; 920 if (wifiWakeupAvailable) { 921 boolean wifiWakeupEnabled = Settings.Global.getInt( 922 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 923 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 924 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 925 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 926 } 927 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 928 if (numSavedNetworks > 0) { 929 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 930 mSavedNetworksPreference.setSummary( 931 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 932 numSavedNetworks, numSavedNetworks)); 933 } else { 934 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 935 } 936 } 937 938 private void setOffMessage() { 939 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 940 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 941 // read the system settings directly. Because when the device is in Airplane mode, even if 942 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 943 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 944 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 945 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 946 : getText(R.string.wifi_scan_notify_text_scanning_off); 947 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 948 @Override 949 public void onClick() { 950 final SettingsActivity activity = (SettingsActivity) getActivity(); 951 activity.startPreferencePanel(WifiSettings.this, 952 ScanningSettings.class.getName(), 953 null, R.string.location_scanning_screen_title, null, null, 0); 954 } 955 }; 956 mStatusMessagePreference.setText(title, description, clickListener); 957 removeConnectedAccessPointPreference(); 958 mAccessPointsPreferenceCategory.removeAll(); 959 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 960 } 961 962 private void addMessagePreference(int messageId) { 963 mStatusMessagePreference.setTitle(messageId); 964 removeConnectedAccessPointPreference(); 965 mAccessPointsPreferenceCategory.removeAll(); 966 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 967 } 968 969 protected void setProgressBarVisible(boolean visible) { 970 if (mProgressHeader != null) { 971 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); 972 } 973 } 974 975 /** 976 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 977 * Wifi setup screens, not in usual wifi settings screen. 978 * 979 * @param enabled true when the device is connected to a wifi network. 980 */ 981 private void changeNextButtonState(boolean enabled) { 982 if (mEnableNextOnConnection && hasNextButton()) { 983 getNextButton().setEnabled(enabled); 984 } 985 } 986 987 @Override 988 public void onForget(WifiDialog dialog) { 989 forget(); 990 } 991 992 @Override 993 public void onSubmit(WifiDialog dialog) { 994 if (mDialog != null) { 995 submit(mDialog.getController()); 996 } 997 } 998 999 /* package */ void submit(WifiConfigController configController) { 1000 1001 final WifiConfiguration config = configController.getConfig(); 1002 1003 if (config == null) { 1004 if (mSelectedAccessPoint != null 1005 && mSelectedAccessPoint.isSaved()) { 1006 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 1007 } 1008 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 1009 mWifiManager.save(config, mSaveListener); 1010 } else { 1011 mWifiManager.save(config, mSaveListener); 1012 if (mSelectedAccessPoint != null) { // Not an "Add network" 1013 connect(config, false /* isSavedNetwork */); 1014 } 1015 } 1016 1017 mWifiTracker.resumeScanning(); 1018 } 1019 1020 /* package */ void forget() { 1021 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 1022 if (!mSelectedAccessPoint.isSaved()) { 1023 if (mSelectedAccessPoint.getNetworkInfo() != null && 1024 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 1025 // Network is active but has no network ID - must be ephemeral. 1026 mWifiManager.disableEphemeralNetwork( 1027 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 1028 } else { 1029 // Should not happen, but a monkey seems to trigger it 1030 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 1031 return; 1032 } 1033 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 1034 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 1035 } else { 1036 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 1037 } 1038 1039 mWifiTracker.resumeScanning(); 1040 1041 // We need to rename/replace "Next" button in wifi setup context. 1042 changeNextButtonState(false); 1043 } 1044 1045 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 1046 // Log subtype if configuration is a saved network. 1047 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1048 isSavedNetwork); 1049 mWifiManager.connect(config, mConnectListener); 1050 mClickedConnect = true; 1051 } 1052 1053 protected void connect(final int networkId, boolean isSavedNetwork) { 1054 // Log subtype if configuration is a saved network. 1055 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1056 isSavedNetwork); 1057 mWifiManager.connect(networkId, mConnectListener); 1058 } 1059 1060 /** 1061 * Called when "add network" button is pressed. 1062 */ 1063 /* package */ void onAddNetworkPressed() { 1064 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1065 // No exact access point is selected. 1066 mSelectedAccessPoint = null; 1067 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1068 } 1069 1070 @Override 1071 protected int getHelpResource() { 1072 return R.string.help_url_wifi; 1073 } 1074 1075 @Override 1076 public void onAccessPointChanged(final AccessPoint accessPoint) { 1077 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1078 View view = getView(); 1079 if (view != null) { 1080 view.post(new Runnable() { 1081 @Override 1082 public void run() { 1083 Object tag = accessPoint.getTag(); 1084 if (tag != null) { 1085 ((LongPressAccessPointPreference) tag).refresh(); 1086 } 1087 } 1088 }); 1089 } 1090 } 1091 1092 @Override 1093 public void onLevelChanged(AccessPoint accessPoint) { 1094 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1095 } 1096 1097 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1098 new BaseSearchIndexProvider() { 1099 @Override 1100 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1101 final List<SearchIndexableRaw> result = new ArrayList<>(); 1102 final Resources res = context.getResources(); 1103 1104 // Add fragment title 1105 SearchIndexableRaw data = new SearchIndexableRaw(context); 1106 data.title = res.getString(R.string.wifi_settings); 1107 data.screenTitle = res.getString(R.string.wifi_settings); 1108 data.keywords = res.getString(R.string.keywords_wifi); 1109 data.key = DATA_KEY_REFERENCE; 1110 result.add(data); 1111 1112 // Add saved Wi-Fi access points 1113 final List<AccessPoint> accessPoints = 1114 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1115 for (AccessPoint accessPoint : accessPoints) { 1116 data = new SearchIndexableRaw(context); 1117 data.title = accessPoint.getSsidStr(); 1118 data.screenTitle = res.getString(R.string.wifi_settings); 1119 data.enabled = enabled; 1120 result.add(data); 1121 } 1122 1123 return result; 1124 } 1125 }; 1126 1127 /** 1128 * Returns true if the config is not editable through Settings. 1129 * @param context Context of caller 1130 * @param config The WiFi config. 1131 * @return true if the config is not editable through Settings. 1132 */ 1133 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1134 return !canModifyNetwork(context, config); 1135 } 1136 1137 /** 1138 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1139 * TODO: refactor to have only one method. 1140 * @param context Context of caller 1141 * @param config The WiFi config. 1142 * @return true if Settings can modify the config. 1143 */ 1144 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1145 if (config == null) { 1146 return true; 1147 } 1148 1149 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1150 Context.DEVICE_POLICY_SERVICE); 1151 1152 // Check if device has DPM capability. If it has and dpm is still null, then we 1153 // treat this case with suspicion and bail out. 1154 final PackageManager pm = context.getPackageManager(); 1155 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1156 return false; 1157 } 1158 1159 boolean isConfigEligibleForLockdown = false; 1160 if (dpm != null) { 1161 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1162 if (deviceOwner != null) { 1163 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1164 try { 1165 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1166 deviceOwnerUserId); 1167 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1168 } catch (NameNotFoundException e) { 1169 // don't care 1170 } 1171 } 1172 } 1173 if (!isConfigEligibleForLockdown) { 1174 return true; 1175 } 1176 1177 final ContentResolver resolver = context.getContentResolver(); 1178 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1179 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1180 return !isLockdownFeatureEnabled; 1181 } 1182 1183 private static class SummaryProvider 1184 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1185 1186 private final Context mContext; 1187 private final SummaryLoader mSummaryLoader; 1188 1189 @VisibleForTesting 1190 WifiSummaryUpdater mSummaryHelper; 1191 1192 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1193 mContext = context; 1194 mSummaryLoader = summaryLoader; 1195 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1196 } 1197 1198 1199 @Override 1200 public void setListening(boolean listening) { 1201 mSummaryHelper.register(listening); 1202 } 1203 1204 @Override 1205 public void onSummaryChanged(String summary) { 1206 mSummaryLoader.setSummary(this, summary); 1207 } 1208 } 1209 1210 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1211 = new SummaryLoader.SummaryProviderFactory() { 1212 @Override 1213 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1214 SummaryLoader summaryLoader) { 1215 return new SummaryProvider(activity, summaryLoader); 1216 } 1217 }; 1218} 1219