WifiSettings.java revision 1c231d32b125f368e29fc30b6edebc81b9db7623
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.support.v7.preference.PreferenceManager; 47import android.text.TextUtils; 48import android.util.Log; 49import android.view.ContextMenu; 50import android.view.ContextMenu.ContextMenuInfo; 51import android.view.Menu; 52import android.view.MenuItem; 53import android.view.View; 54import android.widget.ProgressBar; 55import android.widget.Toast; 56 57import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 58import com.android.settings.LinkifyUtils; 59import com.android.settings.R; 60import com.android.settings.RestrictedSettingsFragment; 61import com.android.settings.SettingsActivity; 62import com.android.settings.dashboard.SummaryLoader; 63import com.android.settings.location.ScanningSettings; 64import com.android.settings.search.BaseSearchIndexProvider; 65import com.android.settings.search.Indexable; 66import com.android.settings.search.SearchIndexableRaw; 67import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 68import com.android.settings.widget.SwitchBarController; 69import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 70import com.android.settingslib.RestrictedLockUtils; 71import com.android.settingslib.wifi.AccessPoint; 72import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 73import com.android.settingslib.wifi.AccessPointPreference; 74import com.android.settingslib.wifi.WifiTracker; 75import com.android.settingslib.wifi.WifiTrackerFactory; 76 77import java.util.ArrayList; 78import java.util.List; 79 80/** 81 * Two types of UI are provided here. 82 * 83 * The first is for "usual Settings", appearing as any other Setup fragment. 84 * 85 * The second is for Setup Wizard, with a simplified interface that hides the action bar 86 * and menus. 87 */ 88public class WifiSettings extends RestrictedSettingsFragment 89 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 90 WifiDialog.WifiDialogListener { 91 92 private static final String TAG = "WifiSettings"; 93 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 94 95 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 96 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 97 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 98 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 99 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 100 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 101 102 public static final int WIFI_DIALOG_ID = 1; 103 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 104 private static final int WPS_PIN_DIALOG_ID = 3; 105 private static final int WRITE_NFC_DIALOG_ID = 6; 106 107 // Instance state keys 108 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 109 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 110 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 111 112 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 113 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 114 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 115 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 116 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 117 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 118 119 private final Runnable mUpdateAccessPointsRunnable = () -> { 120 updateAccessPointPreferences(); 121 }; 122 private final Runnable mHideProgressBarRunnable = () -> { 123 setProgressBarVisible(false); 124 }; 125 126 protected WifiManager mWifiManager; 127 private WifiManager.ActionListener mConnectListener; 128 private WifiManager.ActionListener mSaveListener; 129 private WifiManager.ActionListener mForgetListener; 130 131 private WifiEnabler mWifiEnabler; 132 // An access point being editted is stored here. 133 private AccessPoint mSelectedAccessPoint; 134 135 private WifiDialog mDialog; 136 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 137 138 private ProgressBar mProgressHeader; 139 140 // this boolean extra specifies whether to disable the Next button when not connected. Used by 141 // account creation outside of setup wizard. 142 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 143 // This string extra specifies a network to open the connect dialog on, so the user can enter 144 // network credentials. This is used by quick settings for secured networks. 145 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 146 147 // should Next button only be enabled when we have a connection? 148 private boolean mEnableNextOnConnection; 149 150 // Save the dialog details 151 private int mDialogMode; 152 private AccessPoint mDlgAccessPoint; 153 private Bundle mAccessPointSavedState; 154 private Bundle mWifiNfcDialogSavedState; 155 156 private WifiTracker mWifiTracker; 157 private String mOpenSsid; 158 159 private HandlerThread mBgThread; 160 161 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 162 163 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 164 private PreferenceCategory mAccessPointsPreferenceCategory; 165 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 166 private Preference mAddPreference; 167 private Preference mConfigureWifiSettingsPreference; 168 private Preference mSavedNetworksPreference; 169 private LinkablePreference mStatusMessagePreference; 170 171 // For Search 172 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 173 174 /* End of "used in Wifi Setup context" */ 175 176 public WifiSettings() { 177 super(DISALLOW_CONFIG_WIFI); 178 } 179 180 @Override 181 public void onViewCreated(View view, Bundle savedInstanceState) { 182 super.onViewCreated(view, savedInstanceState); 183 final Activity activity = getActivity(); 184 if (activity != null) { 185 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 186 setProgressBarVisible(false); 187 } 188 } 189 190 @Override 191 public void onCreate(Bundle icicle) { 192 super.onCreate(icicle); 193 194 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 195 // loaded (ODR). 196 setAnimationAllowed(false); 197 198 addPreferencesFromResource(R.xml.wifi_settings); 199 200 mConnectedAccessPointPreferenceCategory = 201 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 202 mAccessPointsPreferenceCategory = 203 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 204 mAdditionalSettingsPreferenceCategory = 205 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 206 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 207 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 208 209 Context prefContext = getPrefContext(); 210 mAddPreference = new Preference(prefContext); 211 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 212 mAddPreference.setTitle(R.string.wifi_add_network); 213 mStatusMessagePreference = new LinkablePreference(prefContext); 214 215 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 216 217 if (isUiRestricted()) { 218 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 219 addMessagePreference(R.string.wifi_empty_list_user_restricted); 220 } 221 222 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 223 mBgThread.start(); 224 } 225 226 @Override 227 public void onDestroy() { 228 mBgThread.quit(); 229 super.onDestroy(); 230 } 231 232 @Override 233 public void onActivityCreated(Bundle savedInstanceState) { 234 super.onActivityCreated(savedInstanceState); 235 236 mWifiTracker = WifiTrackerFactory.create( 237 getActivity(), this, mBgThread.getLooper(), true, true, false); 238 mWifiManager = mWifiTracker.getManager(); 239 240 mConnectListener = new WifiManager.ActionListener() { 241 @Override 242 public void onSuccess() { 243 } 244 @Override 245 public void onFailure(int reason) { 246 Activity activity = getActivity(); 247 if (activity != null) { 248 Toast.makeText(activity, 249 R.string.wifi_failed_connect_message, 250 Toast.LENGTH_SHORT).show(); 251 } 252 } 253 }; 254 255 mSaveListener = new WifiManager.ActionListener() { 256 @Override 257 public void onSuccess() { 258 } 259 @Override 260 public void onFailure(int reason) { 261 Activity activity = getActivity(); 262 if (activity != null) { 263 Toast.makeText(activity, 264 R.string.wifi_failed_save_message, 265 Toast.LENGTH_SHORT).show(); 266 } 267 } 268 }; 269 270 mForgetListener = new WifiManager.ActionListener() { 271 @Override 272 public void onSuccess() { 273 } 274 @Override 275 public void onFailure(int reason) { 276 Activity activity = getActivity(); 277 if (activity != null) { 278 Toast.makeText(activity, 279 R.string.wifi_failed_forget_message, 280 Toast.LENGTH_SHORT).show(); 281 } 282 } 283 }; 284 285 if (savedInstanceState != null) { 286 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 287 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 288 mAccessPointSavedState = 289 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 290 } 291 292 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 293 mWifiNfcDialogSavedState = 294 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 295 } 296 } 297 298 // if we're supposed to enable/disable the Next button based on our current connection 299 // state, start it off in the right state 300 Intent intent = getActivity().getIntent(); 301 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 302 303 if (mEnableNextOnConnection) { 304 if (hasNextButton()) { 305 final ConnectivityManager connectivity = (ConnectivityManager) 306 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 307 if (connectivity != null) { 308 NetworkInfo info = connectivity.getNetworkInfo( 309 ConnectivityManager.TYPE_WIFI); 310 changeNextButtonState(info.isConnected()); 311 } 312 } 313 } 314 315 registerForContextMenu(getListView()); 316 setHasOptionsMenu(true); 317 318 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 319 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 320 updateAccessPointsDelayed(); 321 } 322 } 323 324 @Override 325 public void onDestroyView() { 326 super.onDestroyView(); 327 328 if (mWifiEnabler != null) { 329 mWifiEnabler.teardownSwitchController(); 330 } 331 } 332 333 @Override 334 public void onStart() { 335 super.onStart(); 336 337 // On/off switch is hidden for Setup Wizard (returns null) 338 mWifiEnabler = createWifiEnabler(); 339 340 mWifiTracker.startTracking(); 341 342 if (!isUiRestricted() && mWifiManager.isWifiEnabled()) { 343 forceUpdateAPs(); 344 } 345 } 346 347 private void forceUpdateAPs() { 348 setProgressBarVisible(true); 349 mWifiTracker.forceUpdate(); 350 if (DEBUG) { 351 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 352 } 353 354 getView().removeCallbacks(mUpdateAccessPointsRunnable); 355 updateAccessPointPreferences(); 356 } 357 358 /** 359 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 360 */ 361 private WifiEnabler createWifiEnabler() { 362 final SettingsActivity activity = (SettingsActivity) getActivity(); 363 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 364 mMetricsFeatureProvider); 365 } 366 367 @Override 368 public void onResume() { 369 final Activity activity = getActivity(); 370 super.onResume(); 371 if (mWifiEnabler != null) { 372 mWifiEnabler.resume(activity); 373 } 374 } 375 376 @Override 377 public void onPause() { 378 super.onPause(); 379 if (mWifiEnabler != null) { 380 mWifiEnabler.pause(); 381 } 382 } 383 384 @Override 385 public void onStop() { 386 mWifiTracker.stopTracking(); 387 getView().removeCallbacks(mUpdateAccessPointsRunnable); 388 getView().removeCallbacks(mHideProgressBarRunnable); 389 super.onStop(); 390 } 391 392 @Override 393 public int getMetricsCategory() { 394 return MetricsEvent.WIFI; 395 } 396 397 @Override 398 public void onSaveInstanceState(Bundle outState) { 399 super.onSaveInstanceState(outState); 400 401 // If the dialog is showing, save its state. 402 if (mDialog != null && mDialog.isShowing()) { 403 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 404 if (mDlgAccessPoint != null) { 405 mAccessPointSavedState = new Bundle(); 406 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 407 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 408 } 409 } 410 411 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 412 Bundle savedState = new Bundle(); 413 mWifiToNfcDialog.saveState(savedState); 414 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 415 } 416 } 417 418 @Override 419 public boolean onOptionsItemSelected(MenuItem item) { 420 // If the user is not allowed to configure wifi, do not handle menu selections. 421 if (isUiRestricted()) return false; 422 423 switch (item.getItemId()) { 424 case MENU_ID_WPS_PBC: 425 showDialog(WPS_PBC_DIALOG_ID); 426 return true; 427 /* 428 case MENU_ID_P2P: 429 if (getActivity() instanceof SettingsActivity) { 430 ((SettingsActivity) getActivity()).startPreferencePanel( 431 WifiP2pSettings.class.getCanonicalName(), 432 null, 433 R.string.wifi_p2p_settings_title, null, 434 this, 0); 435 } else { 436 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 437 R.string.wifi_p2p_settings_title, -1, null); 438 } 439 return true; 440 */ 441 case MENU_ID_WPS_PIN: 442 showDialog(WPS_PIN_DIALOG_ID); 443 return true; 444 } 445 return super.onOptionsItemSelected(item); 446 } 447 448 @Override 449 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 450 Preference preference = (Preference) view.getTag(); 451 452 if (preference instanceof LongPressAccessPointPreference) { 453 mSelectedAccessPoint = 454 ((LongPressAccessPointPreference) preference).getAccessPoint(); 455 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 456 if (mSelectedAccessPoint.isConnectable()) { 457 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 458 } 459 460 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 461 // Some configs are ineditable 462 if (isEditabilityLockedDown(getActivity(), config)) { 463 return; 464 } 465 466 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 467 // Allow forgetting a network if either the network is saved or ephemerally 468 // connected. (In the latter case, "forget" blacklists the network so it won't 469 // be used again, ephemerally). 470 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 471 } 472 if (mSelectedAccessPoint.isSaved()) { 473 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 474 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 475 if (nfcAdapter != null && nfcAdapter.isEnabled() && 476 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 477 // Only allow writing of NFC tags for password-protected networks. 478 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 479 } 480 } 481 } 482 } 483 484 @Override 485 public boolean onContextItemSelected(MenuItem item) { 486 if (mSelectedAccessPoint == null) { 487 return super.onContextItemSelected(item); 488 } 489 switch (item.getItemId()) { 490 case MENU_ID_CONNECT: { 491 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 492 if (isSavedNetwork) { 493 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 494 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 495 /** Bypass dialog for unsecured networks */ 496 mSelectedAccessPoint.generateOpenNetworkConfig(); 497 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 498 } else { 499 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 500 } 501 return true; 502 } 503 case MENU_ID_FORGET: { 504 forget(); 505 return true; 506 } 507 case MENU_ID_MODIFY: { 508 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 509 return true; 510 } 511 case MENU_ID_WRITE_NFC: 512 showDialog(WRITE_NFC_DIALOG_ID); 513 return true; 514 515 } 516 return super.onContextItemSelected(item); 517 } 518 519 @Override 520 public boolean onPreferenceTreeClick(Preference preference) { 521 // If the preference has a fragment set, open that 522 if (preference.getFragment() != null) { 523 preference.setOnPreferenceClickListener(null); 524 return super.onPreferenceTreeClick(preference); 525 } 526 527 if (preference instanceof LongPressAccessPointPreference) { 528 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 529 if (mSelectedAccessPoint == null) { 530 return false; 531 } 532 if (mSelectedAccessPoint.isActive()) { 533 return super.onPreferenceTreeClick(preference); 534 } 535 /** 536 * Bypass dialog and connect to unsecured networks, or previously connected saved 537 * networks, or Passpoint provided networks. 538 */ 539 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 540 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 541 mSelectedAccessPoint.generateOpenNetworkConfig(); 542 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 543 } else if (mSelectedAccessPoint.isSaved() && config != null 544 && config.getNetworkSelectionStatus() != null 545 && config.getNetworkSelectionStatus().getHasEverConnected()) { 546 connect(config, true /* isSavedNetwork */); 547 } else if (mSelectedAccessPoint.isPasspoint()) { 548 // Access point provided by an installed Passpoint provider, connect using 549 // the associated config. 550 connect(config, true /* isSavedNetwork */); 551 } else { 552 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 553 } 554 } else if (preference == mAddPreference) { 555 onAddNetworkPressed(); 556 } else { 557 return super.onPreferenceTreeClick(preference); 558 } 559 return true; 560 } 561 562 private void showDialog(AccessPoint accessPoint, int dialogMode) { 563 if (accessPoint != null) { 564 WifiConfiguration config = accessPoint.getConfig(); 565 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 566 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 567 RestrictedLockUtils.getDeviceOwner(getActivity())); 568 return; 569 } 570 } 571 572 if (mDialog != null) { 573 removeDialog(WIFI_DIALOG_ID); 574 mDialog = null; 575 } 576 577 // Save the access point and edit mode 578 mDlgAccessPoint = accessPoint; 579 mDialogMode = dialogMode; 580 581 showDialog(WIFI_DIALOG_ID); 582 } 583 584 @Override 585 public Dialog onCreateDialog(int dialogId) { 586 switch (dialogId) { 587 case WIFI_DIALOG_ID: 588 AccessPoint ap = mDlgAccessPoint; // For manual launch 589 if (ap == null) { // For re-launch from saved state 590 if (mAccessPointSavedState != null) { 591 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 592 // For repeated orientation changes 593 mDlgAccessPoint = ap; 594 // Reset the saved access point data 595 mAccessPointSavedState = null; 596 } 597 } 598 // If it's null, fine, it's for Add Network 599 mSelectedAccessPoint = ap; 600 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 601 /* no hide submit/connect */ false); 602 return mDialog; 603 case WPS_PBC_DIALOG_ID: 604 return new WpsDialog(getActivity(), WpsInfo.PBC); 605 case WPS_PIN_DIALOG_ID: 606 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 607 case WRITE_NFC_DIALOG_ID: 608 if (mSelectedAccessPoint != null) { 609 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 610 getActivity(), 611 mSelectedAccessPoint.getSecurity(), 612 new WifiManagerWrapper(mWifiManager)); 613 } else if (mWifiNfcDialogSavedState != null) { 614 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 615 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 616 } 617 618 return mWifiToNfcDialog; 619 } 620 return super.onCreateDialog(dialogId); 621 } 622 623 @Override 624 public int getDialogMetricsCategory(int dialogId) { 625 switch (dialogId) { 626 case WIFI_DIALOG_ID: 627 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 628 case WPS_PBC_DIALOG_ID: 629 return MetricsEvent.DIALOG_WIFI_PBC; 630 case WPS_PIN_DIALOG_ID: 631 return MetricsEvent.DIALOG_WIFI_PIN; 632 case WRITE_NFC_DIALOG_ID: 633 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 634 default: 635 return 0; 636 } 637 } 638 639 /** 640 * Called to indicate the list of AccessPoints has been updated and 641 * getAccessPoints should be called to get the latest information. 642 */ 643 @Override 644 public void onAccessPointsChanged() { 645 updateAccessPointsDelayed(); 646 } 647 648 /** 649 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 650 * progress bar displayed before starting to modify APs. 651 */ 652 private void updateAccessPointsDelayed() { 653 // Safeguard from some delayed event handling 654 if (getActivity() != null && !isUiRestricted() && mWifiManager.isWifiEnabled()) { 655 setProgressBarVisible(true); 656 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 657 } 658 } 659 660 /** Called when the state of Wifi has changed. */ 661 @Override 662 public void onWifiStateChanged(int state) { 663 if (isUiRestricted()) { 664 return; 665 } 666 667 final int wifiState = mWifiManager.getWifiState(); 668 switch (wifiState) { 669 case WifiManager.WIFI_STATE_ENABLED: 670 forceUpdateAPs(); 671 break; 672 673 case WifiManager.WIFI_STATE_ENABLING: 674 removeConnectedAccessPointPreference(); 675 mAccessPointsPreferenceCategory.removeAll(); 676 addMessagePreference(R.string.wifi_starting); 677 setProgressBarVisible(true); 678 break; 679 680 case WifiManager.WIFI_STATE_DISABLING: 681 removeConnectedAccessPointPreference(); 682 mAccessPointsPreferenceCategory.removeAll(); 683 addMessagePreference(R.string.wifi_stopping); 684 break; 685 686 case WifiManager.WIFI_STATE_DISABLED: 687 setOffMessage(); 688 setProgressBarVisible(false); 689 break; 690 } 691 } 692 693 /** 694 * Called when the connection state of wifi has changed and isConnected 695 * should be called to get the updated state. 696 */ 697 @Override 698 public void onConnectedChanged() { 699 updateAccessPointsDelayed(); 700 changeNextButtonState(mWifiTracker.isConnected()); 701 } 702 703 704 private void updateAccessPointPreferences() { 705 // in case state has changed 706 if (!mWifiManager.isWifiEnabled()) { 707 return; 708 } 709 // AccessPoints are sorted by the WifiTracker 710 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 711 712 boolean hasAvailableAccessPoints = false; 713 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 714 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 715 716 int index = 717 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 718 int numAccessPoints = accessPoints.size(); 719 for (; index < numAccessPoints; index++) { 720 AccessPoint accessPoint = accessPoints.get(index); 721 // Ignore access points that are out of range. 722 if (accessPoint.isReachable()) { 723 String key = accessPoint.getBssid(); 724 if (TextUtils.isEmpty(key)) { 725 key = accessPoint.getSsidStr(); 726 } 727 hasAvailableAccessPoints = true; 728 LongPressAccessPointPreference pref = 729 (LongPressAccessPointPreference) getCachedPreference(key); 730 if (pref != null) { 731 pref.setOrder(index); 732 continue; 733 } 734 LongPressAccessPointPreference preference = 735 createLongPressActionPointPreference(accessPoint); 736 preference.setKey(key); 737 preference.setOrder(index); 738 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 739 && !accessPoint.isSaved() 740 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 741 onPreferenceTreeClick(preference); 742 mOpenSsid = null; 743 } 744 mAccessPointsPreferenceCategory.addPreference(preference); 745 accessPoint.setListener(WifiSettings.this); 746 preference.refresh(); 747 } 748 } 749 removeCachedPrefs(mAccessPointsPreferenceCategory); 750 mAddPreference.setOrder(index); 751 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 752 setAdditionalSettingsSummaries(); 753 754 if (!hasAvailableAccessPoints) { 755 setProgressBarVisible(true); 756 Preference pref = new Preference(getPrefContext()); 757 pref.setSelectable(false); 758 pref.setSummary(R.string.wifi_empty_list_wifi_on); 759 pref.setOrder(index++); 760 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 761 mAccessPointsPreferenceCategory.addPreference(pref); 762 } else { 763 // Continuing showing progress bar for an additional delay to overlap with animation 764 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 765 } 766 } 767 768 @NonNull 769 private LongPressAccessPointPreference createLongPressActionPointPreference( 770 AccessPoint accessPoint) { 771 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 772 false, R.drawable.ic_wifi_signal_0, this); 773 } 774 775 /** 776 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 777 * shown. 778 */ 779 private boolean configureConnectedAccessPointPreferenceCategory( 780 List<AccessPoint> accessPoints) { 781 if (accessPoints.size() == 0) { 782 removeConnectedAccessPointPreference(); 783 return false; 784 } 785 786 AccessPoint connectedAp = accessPoints.get(0); 787 if (!connectedAp.isActive()) { 788 removeConnectedAccessPointPreference(); 789 return false; 790 } 791 792 // Is the preference category empty? 793 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 794 addConnectedAccessPointPreference(connectedAp); 795 return true; 796 } 797 798 // Is the previous currently connected SSID different from the new one? 799 if (!((AccessPointPreference) 800 mConnectedAccessPointPreferenceCategory.getPreference(0)) 801 .getAccessPoint().getSsidStr().equals( 802 connectedAp.getSsidStr())) { 803 removeConnectedAccessPointPreference(); 804 addConnectedAccessPointPreference(connectedAp); 805 return true; 806 } 807 808 // Else same AP is connected, simply refresh the connected access point preference 809 // (first and only access point in this category). 810 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 811 .refresh(); 812 return true; 813 } 814 815 /** 816 * Creates a Preference for the given {@link AccessPoint} and adds it to the 817 * {@link #mConnectedAccessPointPreferenceCategory}. 818 */ 819 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 820 String key = connectedAp.getBssid(); 821 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 822 getCachedPreference(key); 823 if (pref == null) { 824 pref = createLongPressActionPointPreference(connectedAp); 825 } 826 827 // Save the state of the current access point in the bundle so that we can restore it 828 // in the Wifi Network Details Fragment 829 pref.getAccessPoint().saveWifiState(pref.getExtras()); 830 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 831 pref.refresh(); 832 833 mConnectedAccessPointPreferenceCategory.addPreference(pref); 834 mConnectedAccessPointPreferenceCategory.setVisible(true); 835 } 836 837 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 838 private void removeConnectedAccessPointPreference() { 839 mConnectedAccessPointPreferenceCategory.removeAll(); 840 mConnectedAccessPointPreferenceCategory.setVisible(false); 841 } 842 843 private void setAdditionalSettingsSummaries() { 844 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 845 boolean wifiWakeupEnabled = Settings.Global.getInt( 846 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 847 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 848 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 849 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 850 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 851 if (numSavedNetworks > 0) { 852 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 853 mSavedNetworksPreference.setSummary( 854 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 855 numSavedNetworks, numSavedNetworks)); 856 } else { 857 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 858 } 859 } 860 861 private void setOffMessage() { 862 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 863 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 864 // read the system settings directly. Because when the device is in Airplane mode, even if 865 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 866 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 867 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 868 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 869 : getText(R.string.wifi_scan_notify_text_scanning_off); 870 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 871 @Override 872 public void onClick() { 873 final SettingsActivity activity = (SettingsActivity) getActivity(); 874 activity.startPreferencePanel(WifiSettings.this, 875 ScanningSettings.class.getName(), 876 null, R.string.location_scanning_screen_title, null, null, 0); 877 } 878 }; 879 mStatusMessagePreference.setText(title, description, clickListener); 880 removeConnectedAccessPointPreference(); 881 mAccessPointsPreferenceCategory.removeAll(); 882 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 883 } 884 885 private void addMessagePreference(int messageId) { 886 mStatusMessagePreference.setTitle(messageId); 887 removeConnectedAccessPointPreference(); 888 mAccessPointsPreferenceCategory.removeAll(); 889 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 890 } 891 892 protected void setProgressBarVisible(boolean visible) { 893 if (mProgressHeader != null) { 894 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 895 } 896 } 897 898 /** 899 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 900 * Wifi setup screens, not in usual wifi settings screen. 901 * 902 * @param enabled true when the device is connected to a wifi network. 903 */ 904 private void changeNextButtonState(boolean enabled) { 905 if (mEnableNextOnConnection && hasNextButton()) { 906 getNextButton().setEnabled(enabled); 907 } 908 } 909 910 @Override 911 public void onForget(WifiDialog dialog) { 912 forget(); 913 } 914 915 @Override 916 public void onSubmit(WifiDialog dialog) { 917 if (mDialog != null) { 918 submit(mDialog.getController()); 919 } 920 } 921 922 /* package */ void submit(WifiConfigController configController) { 923 924 final WifiConfiguration config = configController.getConfig(); 925 926 if (config == null) { 927 if (mSelectedAccessPoint != null 928 && mSelectedAccessPoint.isSaved()) { 929 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 930 } 931 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 932 mWifiManager.save(config, mSaveListener); 933 } else { 934 mWifiManager.save(config, mSaveListener); 935 if (mSelectedAccessPoint != null) { // Not an "Add network" 936 connect(config, false /* isSavedNetwork */); 937 } 938 } 939 940 mWifiTracker.resumeScanning(); 941 } 942 943 /* package */ void forget() { 944 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 945 if (!mSelectedAccessPoint.isSaved()) { 946 if (mSelectedAccessPoint.getNetworkInfo() != null && 947 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 948 // Network is active but has no network ID - must be ephemeral. 949 mWifiManager.disableEphemeralNetwork( 950 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 951 } else { 952 // Should not happen, but a monkey seems to trigger it 953 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 954 return; 955 } 956 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 957 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 958 } else { 959 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 960 } 961 962 mWifiTracker.resumeScanning(); 963 964 // We need to rename/replace "Next" button in wifi setup context. 965 changeNextButtonState(false); 966 } 967 968 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 969 // Log subtype if configuration is a saved network. 970 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 971 isSavedNetwork); 972 mWifiManager.connect(config, mConnectListener); 973 } 974 975 protected void connect(final int networkId, boolean isSavedNetwork) { 976 // Log subtype if configuration is a saved network. 977 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 978 isSavedNetwork); 979 mWifiManager.connect(networkId, mConnectListener); 980 } 981 982 /** 983 * Called when "add network" button is pressed. 984 */ 985 /* package */ void onAddNetworkPressed() { 986 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 987 // No exact access point is selected. 988 mSelectedAccessPoint = null; 989 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 990 } 991 992 @Override 993 protected int getHelpResource() { 994 return R.string.help_url_wifi; 995 } 996 997 @Override 998 public void onAccessPointChanged(final AccessPoint accessPoint) { 999 View view = getView(); 1000 if (view != null) { 1001 view.post(new Runnable() { 1002 @Override 1003 public void run() { 1004 Object tag = accessPoint.getTag(); 1005 if (tag != null) { 1006 ((LongPressAccessPointPreference) tag).refresh(); 1007 } 1008 } 1009 }); 1010 } 1011 } 1012 1013 @Override 1014 public void onLevelChanged(AccessPoint accessPoint) { 1015 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1016 } 1017 1018 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1019 new BaseSearchIndexProvider() { 1020 @Override 1021 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1022 final List<SearchIndexableRaw> result = new ArrayList<>(); 1023 final Resources res = context.getResources(); 1024 1025 // Add fragment title 1026 SearchIndexableRaw data = new SearchIndexableRaw(context); 1027 data.title = res.getString(R.string.wifi_settings); 1028 data.screenTitle = res.getString(R.string.wifi_settings); 1029 data.keywords = res.getString(R.string.keywords_wifi); 1030 data.key = DATA_KEY_REFERENCE; 1031 result.add(data); 1032 1033 // Add saved Wi-Fi access points 1034 final List<AccessPoint> accessPoints = 1035 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1036 for (AccessPoint accessPoint : accessPoints) { 1037 data = new SearchIndexableRaw(context); 1038 data.title = accessPoint.getSsidStr(); 1039 data.screenTitle = res.getString(R.string.wifi_settings); 1040 data.enabled = enabled; 1041 result.add(data); 1042 } 1043 1044 return result; 1045 } 1046 }; 1047 1048 /** 1049 * Returns true if the config is not editable through Settings. 1050 * @param context Context of caller 1051 * @param config The WiFi config. 1052 * @return true if the config is not editable through Settings. 1053 */ 1054 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1055 return !canModifyNetwork(context, config); 1056 } 1057 1058 /** 1059 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1060 * TODO: refactor to have only one method. 1061 * @param context Context of caller 1062 * @param config The WiFi config. 1063 * @return true if Settings can modify the config. 1064 */ 1065 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1066 if (config == null) { 1067 return true; 1068 } 1069 1070 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1071 Context.DEVICE_POLICY_SERVICE); 1072 1073 // Check if device has DPM capability. If it has and dpm is still null, then we 1074 // treat this case with suspicion and bail out. 1075 final PackageManager pm = context.getPackageManager(); 1076 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1077 return false; 1078 } 1079 1080 boolean isConfigEligibleForLockdown = false; 1081 if (dpm != null) { 1082 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1083 if (deviceOwner != null) { 1084 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1085 try { 1086 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1087 deviceOwnerUserId); 1088 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1089 } catch (NameNotFoundException e) { 1090 // don't care 1091 } 1092 } 1093 } 1094 if (!isConfigEligibleForLockdown) { 1095 return true; 1096 } 1097 1098 final ContentResolver resolver = context.getContentResolver(); 1099 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1100 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1101 return !isLockdownFeatureEnabled; 1102 } 1103 1104 private static class SummaryProvider 1105 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1106 1107 private final Context mContext; 1108 private final SummaryLoader mSummaryLoader; 1109 1110 @VisibleForTesting 1111 WifiSummaryUpdater mSummaryHelper; 1112 1113 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1114 mContext = context; 1115 mSummaryLoader = summaryLoader; 1116 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1117 } 1118 1119 1120 @Override 1121 public void setListening(boolean listening) { 1122 mSummaryHelper.register(listening); 1123 } 1124 1125 @Override 1126 public void onSummaryChanged(String summary) { 1127 mSummaryLoader.setSummary(this, summary); 1128 } 1129 } 1130 1131 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1132 = new SummaryLoader.SummaryProviderFactory() { 1133 @Override 1134 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1135 SummaryLoader summaryLoader) { 1136 return new SummaryProvider(activity, summaryLoader); 1137 } 1138 }; 1139} 1140