WifiSettings.java revision 36b68df4d4d69534254d5bb35d1b424620db854b
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 94 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 95 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 96 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 97 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 98 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 99 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 100 101 public static final int WIFI_DIALOG_ID = 1; 102 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 103 private static final int WPS_PIN_DIALOG_ID = 3; 104 private static final int WRITE_NFC_DIALOG_ID = 6; 105 106 // Instance state keys 107 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 108 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 109 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 110 111 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 112 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 113 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 114 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 115 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 116 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 117 118 private final Runnable mUpdateAccessPointsRunnable = () -> { 119 updateAccessPointPreferences(); 120 }; 121 private final Runnable mHideProgressBarRunnable = () -> { 122 setProgressBarVisible(false); 123 }; 124 125 protected WifiManager mWifiManager; 126 private WifiManager.ActionListener mConnectListener; 127 private WifiManager.ActionListener mSaveListener; 128 private WifiManager.ActionListener mForgetListener; 129 130 private WifiEnabler mWifiEnabler; 131 // An access point being editted is stored here. 132 private AccessPoint mSelectedAccessPoint; 133 134 private WifiDialog mDialog; 135 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 136 137 private ProgressBar mProgressHeader; 138 139 // this boolean extra specifies whether to disable the Next button when not connected. Used by 140 // account creation outside of setup wizard. 141 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 142 // This string extra specifies a network to open the connect dialog on, so the user can enter 143 // network credentials. This is used by quick settings for secured networks. 144 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 145 146 // should Next button only be enabled when we have a connection? 147 private boolean mEnableNextOnConnection; 148 149 // Save the dialog details 150 private int mDialogMode; 151 private AccessPoint mDlgAccessPoint; 152 private Bundle mAccessPointSavedState; 153 private Bundle mWifiNfcDialogSavedState; 154 155 private WifiTracker mWifiTracker; 156 private String mOpenSsid; 157 158 private HandlerThread mBgThread; 159 160 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 161 162 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 163 private PreferenceCategory mAccessPointsPreferenceCategory; 164 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 165 private Preference mAddPreference; 166 private Preference mConfigureWifiSettingsPreference; 167 private Preference mSavedNetworksPreference; 168 private LinkablePreference mStatusMessagePreference; 169 170 // For Search 171 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 172 173 /* End of "used in Wifi Setup context" */ 174 175 public WifiSettings() { 176 super(DISALLOW_CONFIG_WIFI); 177 } 178 179 @Override 180 public void onViewCreated(View view, Bundle savedInstanceState) { 181 super.onViewCreated(view, savedInstanceState); 182 final Activity activity = getActivity(); 183 if (activity != null) { 184 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 185 setProgressBarVisible(false); 186 } 187 } 188 189 @Override 190 public void onCreate(Bundle icicle) { 191 super.onCreate(icicle); 192 193 getPreferenceManager().setPreferenceComparisonCallback( 194 new PreferenceManager.SimplePreferenceComparisonCallback()); 195 addPreferencesFromResource(R.xml.wifi_settings); 196 197 mConnectedAccessPointPreferenceCategory = 198 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 199 mAccessPointsPreferenceCategory = 200 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 201 mAdditionalSettingsPreferenceCategory = 202 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 203 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 204 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 205 206 Context prefContext = getPrefContext(); 207 mAddPreference = new Preference(prefContext); 208 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 209 mAddPreference.setTitle(R.string.wifi_add_network); 210 mStatusMessagePreference = new LinkablePreference(prefContext); 211 212 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 213 214 if (isUiRestricted()) { 215 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 216 addMessagePreference(R.string.wifi_empty_list_user_restricted); 217 } 218 219 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 220 mBgThread.start(); 221 } 222 223 @Override 224 public void onDestroy() { 225 mBgThread.quit(); 226 super.onDestroy(); 227 } 228 229 @Override 230 public void onActivityCreated(Bundle savedInstanceState) { 231 super.onActivityCreated(savedInstanceState); 232 233 mWifiTracker = WifiTrackerFactory.create( 234 getActivity(), this, mBgThread.getLooper(), true, true, false); 235 mWifiManager = mWifiTracker.getManager(); 236 237 mConnectListener = new WifiManager.ActionListener() { 238 @Override 239 public void onSuccess() { 240 } 241 @Override 242 public void onFailure(int reason) { 243 Activity activity = getActivity(); 244 if (activity != null) { 245 Toast.makeText(activity, 246 R.string.wifi_failed_connect_message, 247 Toast.LENGTH_SHORT).show(); 248 } 249 } 250 }; 251 252 mSaveListener = new WifiManager.ActionListener() { 253 @Override 254 public void onSuccess() { 255 } 256 @Override 257 public void onFailure(int reason) { 258 Activity activity = getActivity(); 259 if (activity != null) { 260 Toast.makeText(activity, 261 R.string.wifi_failed_save_message, 262 Toast.LENGTH_SHORT).show(); 263 } 264 } 265 }; 266 267 mForgetListener = new WifiManager.ActionListener() { 268 @Override 269 public void onSuccess() { 270 } 271 @Override 272 public void onFailure(int reason) { 273 Activity activity = getActivity(); 274 if (activity != null) { 275 Toast.makeText(activity, 276 R.string.wifi_failed_forget_message, 277 Toast.LENGTH_SHORT).show(); 278 } 279 } 280 }; 281 282 if (savedInstanceState != null) { 283 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 284 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 285 mAccessPointSavedState = 286 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 287 } 288 289 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 290 mWifiNfcDialogSavedState = 291 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 292 } 293 } 294 295 // if we're supposed to enable/disable the Next button based on our current connection 296 // state, start it off in the right state 297 Intent intent = getActivity().getIntent(); 298 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 299 300 if (mEnableNextOnConnection) { 301 if (hasNextButton()) { 302 final ConnectivityManager connectivity = (ConnectivityManager) 303 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 304 if (connectivity != null) { 305 NetworkInfo info = connectivity.getNetworkInfo( 306 ConnectivityManager.TYPE_WIFI); 307 changeNextButtonState(info.isConnected()); 308 } 309 } 310 } 311 312 registerForContextMenu(getListView()); 313 setHasOptionsMenu(true); 314 315 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 316 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 317 updateAccessPointsDelayed(); 318 } 319 } 320 321 @Override 322 public void onDestroyView() { 323 super.onDestroyView(); 324 325 if (mWifiEnabler != null) { 326 mWifiEnabler.teardownSwitchController(); 327 } 328 } 329 330 @Override 331 public void onStart() { 332 super.onStart(); 333 334 // On/off switch is hidden for Setup Wizard (returns null) 335 mWifiEnabler = createWifiEnabler(); 336 337 mWifiTracker.startTracking(); 338 } 339 340 /** 341 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 342 */ 343 private WifiEnabler createWifiEnabler() { 344 final SettingsActivity activity = (SettingsActivity) getActivity(); 345 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 346 mMetricsFeatureProvider); 347 } 348 349 @Override 350 public void onResume() { 351 final Activity activity = getActivity(); 352 super.onResume(); 353 if (mWifiEnabler != null) { 354 mWifiEnabler.resume(activity); 355 } 356 357 activity.invalidateOptionsMenu(); 358 } 359 360 @Override 361 public void onPause() { 362 super.onPause(); 363 if (mWifiEnabler != null) { 364 mWifiEnabler.pause(); 365 } 366 } 367 368 @Override 369 public void onStop() { 370 mWifiTracker.stopTracking(); 371 getView().removeCallbacks(mUpdateAccessPointsRunnable); 372 getView().removeCallbacks(mHideProgressBarRunnable); 373 super.onStop(); 374 } 375 376 @Override 377 public int getMetricsCategory() { 378 return MetricsEvent.WIFI; 379 } 380 381 @Override 382 public void onSaveInstanceState(Bundle outState) { 383 super.onSaveInstanceState(outState); 384 385 // If the dialog is showing, save its state. 386 if (mDialog != null && mDialog.isShowing()) { 387 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 388 if (mDlgAccessPoint != null) { 389 mAccessPointSavedState = new Bundle(); 390 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 391 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 392 } 393 } 394 395 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 396 Bundle savedState = new Bundle(); 397 mWifiToNfcDialog.saveState(savedState); 398 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 399 } 400 } 401 402 @Override 403 public boolean onOptionsItemSelected(MenuItem item) { 404 // If the user is not allowed to configure wifi, do not handle menu selections. 405 if (isUiRestricted()) return false; 406 407 switch (item.getItemId()) { 408 case MENU_ID_WPS_PBC: 409 showDialog(WPS_PBC_DIALOG_ID); 410 return true; 411 /* 412 case MENU_ID_P2P: 413 if (getActivity() instanceof SettingsActivity) { 414 ((SettingsActivity) getActivity()).startPreferencePanel( 415 WifiP2pSettings.class.getCanonicalName(), 416 null, 417 R.string.wifi_p2p_settings_title, null, 418 this, 0); 419 } else { 420 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 421 R.string.wifi_p2p_settings_title, -1, null); 422 } 423 return true; 424 */ 425 case MENU_ID_WPS_PIN: 426 showDialog(WPS_PIN_DIALOG_ID); 427 return true; 428 } 429 return super.onOptionsItemSelected(item); 430 } 431 432 @Override 433 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 434 Preference preference = (Preference) view.getTag(); 435 436 if (preference instanceof LongPressAccessPointPreference) { 437 mSelectedAccessPoint = 438 ((LongPressAccessPointPreference) preference).getAccessPoint(); 439 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 440 if (mSelectedAccessPoint.isConnectable()) { 441 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 442 } 443 444 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 445 // Some configs are ineditable 446 if (isEditabilityLockedDown(getActivity(), config)) { 447 return; 448 } 449 450 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 451 // Allow forgetting a network if either the network is saved or ephemerally 452 // connected. (In the latter case, "forget" blacklists the network so it won't 453 // be used again, ephemerally). 454 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 455 } 456 if (mSelectedAccessPoint.isSaved()) { 457 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 458 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 459 if (nfcAdapter != null && nfcAdapter.isEnabled() && 460 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 461 // Only allow writing of NFC tags for password-protected networks. 462 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 463 } 464 } 465 } 466 } 467 468 @Override 469 public boolean onContextItemSelected(MenuItem item) { 470 if (mSelectedAccessPoint == null) { 471 return super.onContextItemSelected(item); 472 } 473 switch (item.getItemId()) { 474 case MENU_ID_CONNECT: { 475 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 476 if (isSavedNetwork) { 477 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 478 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 479 /** Bypass dialog for unsecured networks */ 480 mSelectedAccessPoint.generateOpenNetworkConfig(); 481 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 482 } else { 483 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 484 } 485 return true; 486 } 487 case MENU_ID_FORGET: { 488 forget(); 489 return true; 490 } 491 case MENU_ID_MODIFY: { 492 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 493 return true; 494 } 495 case MENU_ID_WRITE_NFC: 496 showDialog(WRITE_NFC_DIALOG_ID); 497 return true; 498 499 } 500 return super.onContextItemSelected(item); 501 } 502 503 @Override 504 public boolean onPreferenceTreeClick(Preference preference) { 505 // If the preference has a fragment set, open that 506 if (preference.getFragment() != null) { 507 preference.setOnPreferenceClickListener(null); 508 return super.onPreferenceTreeClick(preference); 509 } 510 511 if (preference instanceof LongPressAccessPointPreference) { 512 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 513 if (mSelectedAccessPoint == null) { 514 return false; 515 } 516 if (mSelectedAccessPoint.isActive()) { 517 return super.onPreferenceTreeClick(preference); 518 } 519 /** 520 * Bypass dialog and connect to unsecured networks, or previously connected saved 521 * networks, or Passpoint provided networks. 522 */ 523 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 524 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 525 mSelectedAccessPoint.generateOpenNetworkConfig(); 526 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 527 } else if (mSelectedAccessPoint.isSaved() && config != null 528 && config.getNetworkSelectionStatus() != null 529 && config.getNetworkSelectionStatus().getHasEverConnected()) { 530 connect(config, true /* isSavedNetwork */); 531 } else if (mSelectedAccessPoint.isPasspoint()) { 532 // Access point provided by an installed Passpoint provider, connect using 533 // the associated config. 534 connect(config, true /* isSavedNetwork */); 535 } else { 536 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 537 } 538 } else if (preference == mAddPreference) { 539 onAddNetworkPressed(); 540 } else { 541 return super.onPreferenceTreeClick(preference); 542 } 543 return true; 544 } 545 546 private void showDialog(AccessPoint accessPoint, int dialogMode) { 547 if (accessPoint != null) { 548 WifiConfiguration config = accessPoint.getConfig(); 549 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 550 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 551 RestrictedLockUtils.getDeviceOwner(getActivity())); 552 return; 553 } 554 } 555 556 if (mDialog != null) { 557 removeDialog(WIFI_DIALOG_ID); 558 mDialog = null; 559 } 560 561 // Save the access point and edit mode 562 mDlgAccessPoint = accessPoint; 563 mDialogMode = dialogMode; 564 565 showDialog(WIFI_DIALOG_ID); 566 } 567 568 @Override 569 public Dialog onCreateDialog(int dialogId) { 570 switch (dialogId) { 571 case WIFI_DIALOG_ID: 572 AccessPoint ap = mDlgAccessPoint; // For manual launch 573 if (ap == null) { // For re-launch from saved state 574 if (mAccessPointSavedState != null) { 575 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 576 // For repeated orientation changes 577 mDlgAccessPoint = ap; 578 // Reset the saved access point data 579 mAccessPointSavedState = null; 580 } 581 } 582 // If it's null, fine, it's for Add Network 583 mSelectedAccessPoint = ap; 584 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 585 /* no hide submit/connect */ false); 586 return mDialog; 587 case WPS_PBC_DIALOG_ID: 588 return new WpsDialog(getActivity(), WpsInfo.PBC); 589 case WPS_PIN_DIALOG_ID: 590 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 591 case WRITE_NFC_DIALOG_ID: 592 if (mSelectedAccessPoint != null) { 593 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 594 getActivity(), 595 mSelectedAccessPoint.getSecurity(), 596 new WifiManagerWrapper(mWifiManager)); 597 } else if (mWifiNfcDialogSavedState != null) { 598 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 599 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 600 } 601 602 return mWifiToNfcDialog; 603 } 604 return super.onCreateDialog(dialogId); 605 } 606 607 @Override 608 public int getDialogMetricsCategory(int dialogId) { 609 switch (dialogId) { 610 case WIFI_DIALOG_ID: 611 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 612 case WPS_PBC_DIALOG_ID: 613 return MetricsEvent.DIALOG_WIFI_PBC; 614 case WPS_PIN_DIALOG_ID: 615 return MetricsEvent.DIALOG_WIFI_PIN; 616 case WRITE_NFC_DIALOG_ID: 617 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 618 default: 619 return 0; 620 } 621 } 622 623 /** 624 * Called to indicate the list of AccessPoints has been updated and 625 * getAccessPoints should be called to get the latest information. 626 */ 627 @Override 628 public void onAccessPointsChanged() { 629 updateAccessPointsDelayed(); 630 } 631 632 /** 633 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 634 * progress bar displayed before starting to modify APs. 635 */ 636 private void updateAccessPointsDelayed() { 637 // Safeguard from some delayed event handling 638 if (getActivity() != null && !isUiRestricted() && mWifiManager.isWifiEnabled()) { 639 setProgressBarVisible(true); 640 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 641 } 642 } 643 644 /** Called when the state of Wifi has changed. */ 645 @Override 646 public void onWifiStateChanged(int state) { 647 if (isUiRestricted()) { 648 return; 649 } 650 651 final int wifiState = mWifiManager.getWifiState(); 652 switch (wifiState) { 653 case WifiManager.WIFI_STATE_ENABLED: 654 updateAccessPointsDelayed(); 655 break; 656 657 case WifiManager.WIFI_STATE_ENABLING: 658 removeConnectedAccessPointPreference(); 659 mAccessPointsPreferenceCategory.removeAll(); 660 addMessagePreference(R.string.wifi_starting); 661 setProgressBarVisible(true); 662 break; 663 664 case WifiManager.WIFI_STATE_DISABLING: 665 removeConnectedAccessPointPreference(); 666 mAccessPointsPreferenceCategory.removeAll(); 667 addMessagePreference(R.string.wifi_stopping); 668 break; 669 670 case WifiManager.WIFI_STATE_DISABLED: 671 setOffMessage(); 672 setProgressBarVisible(false); 673 break; 674 } 675 } 676 677 /** 678 * Called when the connection state of wifi has changed and isConnected 679 * should be called to get the updated state. 680 */ 681 @Override 682 public void onConnectedChanged() { 683 updateAccessPointsDelayed(); 684 changeNextButtonState(mWifiTracker.isConnected()); 685 } 686 687 688 private void updateAccessPointPreferences() { 689 // in case state has changed 690 if (!mWifiManager.isWifiEnabled()) { 691 return; 692 } 693 // AccessPoints are sorted by the WifiTracker 694 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 695 696 boolean hasAvailableAccessPoints = false; 697 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 698 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 699 700 int index = 701 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 702 int numAccessPoints = accessPoints.size(); 703 for (; index < numAccessPoints; index++) { 704 AccessPoint accessPoint = accessPoints.get(index); 705 // Ignore access points that are out of range. 706 if (accessPoint.isReachable()) { 707 String key = accessPoint.getBssid(); 708 if (TextUtils.isEmpty(key)) { 709 key = accessPoint.getSsidStr(); 710 } 711 hasAvailableAccessPoints = true; 712 LongPressAccessPointPreference pref = 713 (LongPressAccessPointPreference) getCachedPreference(key); 714 if (pref != null) { 715 pref.setOrder(index); 716 continue; 717 } 718 LongPressAccessPointPreference preference = 719 createLongPressActionPointPreference(accessPoint); 720 preference.setKey(key); 721 preference.setOrder(index); 722 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 723 && !accessPoint.isSaved() 724 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 725 onPreferenceTreeClick(preference); 726 mOpenSsid = null; 727 } 728 mAccessPointsPreferenceCategory.addPreference(preference); 729 accessPoint.setListener(WifiSettings.this); 730 preference.refresh(); 731 } 732 } 733 removeCachedPrefs(mAccessPointsPreferenceCategory); 734 mAddPreference.setOrder(index); 735 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 736 setConfigureWifiSettingsVisibility(); 737 738 if (!hasAvailableAccessPoints) { 739 setProgressBarVisible(true); 740 Preference pref = new Preference(getPrefContext()); 741 pref.setSelectable(false); 742 pref.setSummary(R.string.wifi_empty_list_wifi_on); 743 pref.setOrder(index++); 744 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 745 mAccessPointsPreferenceCategory.addPreference(pref); 746 } else { 747 // Continuing showing progress bar for an additional delay to overlap with animation 748 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 749 } 750 } 751 752 @NonNull 753 private LongPressAccessPointPreference createLongPressActionPointPreference( 754 AccessPoint accessPoint) { 755 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 756 false, R.drawable.ic_wifi_signal_0, this); 757 } 758 759 /** 760 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 761 * shown. 762 */ 763 private boolean configureConnectedAccessPointPreferenceCategory( 764 List<AccessPoint> accessPoints) { 765 if (accessPoints.size() == 0) { 766 removeConnectedAccessPointPreference(); 767 return false; 768 } 769 770 AccessPoint connectedAp = accessPoints.get(0); 771 if (!connectedAp.isActive()) { 772 removeConnectedAccessPointPreference(); 773 return false; 774 } 775 776 // Is the preference category empty? 777 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 778 addConnectedAccessPointPreference(connectedAp); 779 return true; 780 } 781 782 // Is the previous currently connected SSID different from the new one? 783 if (!((AccessPointPreference) 784 mConnectedAccessPointPreferenceCategory.getPreference(0)) 785 .getAccessPoint().getSsidStr().equals( 786 connectedAp.getSsidStr())) { 787 removeConnectedAccessPointPreference(); 788 addConnectedAccessPointPreference(connectedAp); 789 return true; 790 } 791 792 // Else same AP is connected, simply refresh the connected access point preference 793 // (first and only access point in this category). 794 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 795 .refresh(); 796 return true; 797 } 798 799 /** 800 * Creates a Preference for the given {@link AccessPoint} and adds it to the 801 * {@link #mConnectedAccessPointPreferenceCategory}. 802 */ 803 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 804 String key = connectedAp.getBssid(); 805 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 806 getCachedPreference(key); 807 if (pref == null) { 808 pref = createLongPressActionPointPreference(connectedAp); 809 } 810 811 // Save the state of the current access point in the bundle so that we can restore it 812 // in the Wifi Network Details Fragment 813 pref.getAccessPoint().saveWifiState(pref.getExtras()); 814 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 815 816 pref.refresh(); 817 mConnectedAccessPointPreferenceCategory.addPreference(pref); 818 mConnectedAccessPointPreferenceCategory.setVisible(true); 819 } 820 821 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 822 private void removeConnectedAccessPointPreference() { 823 mConnectedAccessPointPreferenceCategory.removeAll(); 824 mConnectedAccessPointPreferenceCategory.setVisible(false); 825 } 826 827 private void setConfigureWifiSettingsVisibility() { 828 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 829 boolean wifiWakeupEnabled = Settings.Global.getInt( 830 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 831 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 832 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 833 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 834 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 835 if (numSavedNetworks > 0) { 836 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 837 mSavedNetworksPreference.setSummary( 838 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 839 numSavedNetworks, numSavedNetworks)); 840 } else { 841 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 842 } 843 } 844 845 private void setOffMessage() { 846 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 847 848 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 849 // read the system settings directly. Because when the device is in Airplane mode, even if 850 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 851 final ContentResolver resolver = getActivity().getContentResolver(); 852 final boolean wifiScanningMode = Settings.Global.getInt( 853 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 854 855 if (!wifiScanningMode) { 856 // Show only the brief text if the user is not allowed to configure scanning settings, 857 // or the scanning mode has been turned off. 858 mStatusMessagePreference.setTitle(briefText); 859 } else { 860 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 861 @Override 862 public void onClick() { 863 final SettingsActivity activity = (SettingsActivity) getActivity(); 864 activity.startPreferencePanel(WifiSettings.this, 865 ScanningSettings.class.getName(), 866 null, R.string.location_scanning_screen_title, null, null, 0); 867 } 868 }; 869 mStatusMessagePreference.setText( 870 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 871 } 872 removeConnectedAccessPointPreference(); 873 mAccessPointsPreferenceCategory.removeAll(); 874 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 875 } 876 877 private void addMessagePreference(int messageId) { 878 mStatusMessagePreference.setTitle(messageId); 879 removeConnectedAccessPointPreference(); 880 mAccessPointsPreferenceCategory.removeAll(); 881 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 882 } 883 884 protected void setProgressBarVisible(boolean visible) { 885 if (mProgressHeader != null) { 886 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 887 } 888 } 889 890 /** 891 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 892 * Wifi setup screens, not in usual wifi settings screen. 893 * 894 * @param enabled true when the device is connected to a wifi network. 895 */ 896 private void changeNextButtonState(boolean enabled) { 897 if (mEnableNextOnConnection && hasNextButton()) { 898 getNextButton().setEnabled(enabled); 899 } 900 } 901 902 @Override 903 public void onForget(WifiDialog dialog) { 904 forget(); 905 } 906 907 @Override 908 public void onSubmit(WifiDialog dialog) { 909 if (mDialog != null) { 910 submit(mDialog.getController()); 911 } 912 } 913 914 /* package */ void submit(WifiConfigController configController) { 915 916 final WifiConfiguration config = configController.getConfig(); 917 918 if (config == null) { 919 if (mSelectedAccessPoint != null 920 && mSelectedAccessPoint.isSaved()) { 921 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 922 } 923 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 924 mWifiManager.save(config, mSaveListener); 925 } else { 926 mWifiManager.save(config, mSaveListener); 927 if (mSelectedAccessPoint != null) { // Not an "Add network" 928 connect(config, false /* isSavedNetwork */); 929 } 930 } 931 932 mWifiTracker.resumeScanning(); 933 } 934 935 /* package */ void forget() { 936 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 937 if (!mSelectedAccessPoint.isSaved()) { 938 if (mSelectedAccessPoint.getNetworkInfo() != null && 939 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 940 // Network is active but has no network ID - must be ephemeral. 941 mWifiManager.disableEphemeralNetwork( 942 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 943 } else { 944 // Should not happen, but a monkey seems to trigger it 945 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 946 return; 947 } 948 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 949 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 950 } else { 951 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 952 } 953 954 mWifiTracker.resumeScanning(); 955 956 // We need to rename/replace "Next" button in wifi setup context. 957 changeNextButtonState(false); 958 } 959 960 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 961 // Log subtype if configuration is a saved network. 962 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 963 isSavedNetwork); 964 mWifiManager.connect(config, mConnectListener); 965 } 966 967 protected void connect(final int networkId, boolean isSavedNetwork) { 968 // Log subtype if configuration is a saved network. 969 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 970 isSavedNetwork); 971 mWifiManager.connect(networkId, mConnectListener); 972 } 973 974 /** 975 * Called when "add network" button is pressed. 976 */ 977 /* package */ void onAddNetworkPressed() { 978 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 979 // No exact access point is selected. 980 mSelectedAccessPoint = null; 981 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 982 } 983 984 @Override 985 protected int getHelpResource() { 986 return R.string.help_url_wifi; 987 } 988 989 @Override 990 public void onAccessPointChanged(final AccessPoint accessPoint) { 991 View view = getView(); 992 if (view != null) { 993 view.post(new Runnable() { 994 @Override 995 public void run() { 996 Object tag = accessPoint.getTag(); 997 if (tag != null) { 998 ((LongPressAccessPointPreference) tag).refresh(); 999 } 1000 } 1001 }); 1002 } 1003 } 1004 1005 @Override 1006 public void onLevelChanged(AccessPoint accessPoint) { 1007 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1008 } 1009 1010 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1011 new BaseSearchIndexProvider() { 1012 @Override 1013 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1014 final List<SearchIndexableRaw> result = new ArrayList<>(); 1015 final Resources res = context.getResources(); 1016 1017 // Add fragment title 1018 SearchIndexableRaw data = new SearchIndexableRaw(context); 1019 data.title = res.getString(R.string.wifi_settings); 1020 data.screenTitle = res.getString(R.string.wifi_settings); 1021 data.keywords = res.getString(R.string.keywords_wifi); 1022 data.key = DATA_KEY_REFERENCE; 1023 result.add(data); 1024 1025 // Add saved Wi-Fi access points 1026 final List<AccessPoint> accessPoints = 1027 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1028 for (AccessPoint accessPoint : accessPoints) { 1029 data = new SearchIndexableRaw(context); 1030 data.title = accessPoint.getSsidStr(); 1031 data.screenTitle = res.getString(R.string.wifi_settings); 1032 data.enabled = enabled; 1033 result.add(data); 1034 } 1035 1036 return result; 1037 } 1038 }; 1039 1040 /** 1041 * Returns true if the config is not editable through Settings. 1042 * @param context Context of caller 1043 * @param config The WiFi config. 1044 * @return true if the config is not editable through Settings. 1045 */ 1046 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1047 return !canModifyNetwork(context, config); 1048 } 1049 1050 /** 1051 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1052 * TODO: refactor to have only one method. 1053 * @param context Context of caller 1054 * @param config The WiFi config. 1055 * @return true if Settings can modify the config. 1056 */ 1057 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1058 if (config == null) { 1059 return true; 1060 } 1061 1062 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1063 Context.DEVICE_POLICY_SERVICE); 1064 1065 // Check if device has DPM capability. If it has and dpm is still null, then we 1066 // treat this case with suspicion and bail out. 1067 final PackageManager pm = context.getPackageManager(); 1068 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1069 return false; 1070 } 1071 1072 boolean isConfigEligibleForLockdown = false; 1073 if (dpm != null) { 1074 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1075 if (deviceOwner != null) { 1076 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1077 try { 1078 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1079 deviceOwnerUserId); 1080 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1081 } catch (NameNotFoundException e) { 1082 // don't care 1083 } 1084 } 1085 } 1086 if (!isConfigEligibleForLockdown) { 1087 return true; 1088 } 1089 1090 final ContentResolver resolver = context.getContentResolver(); 1091 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1092 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1093 return !isLockdownFeatureEnabled; 1094 } 1095 1096 private static class SummaryProvider 1097 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1098 1099 private final Context mContext; 1100 private final SummaryLoader mSummaryLoader; 1101 1102 @VisibleForTesting 1103 WifiSummaryUpdater mSummaryHelper; 1104 1105 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1106 mContext = context; 1107 mSummaryLoader = summaryLoader; 1108 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1109 } 1110 1111 1112 @Override 1113 public void setListening(boolean listening) { 1114 mSummaryHelper.register(listening); 1115 } 1116 1117 @Override 1118 public void onSummaryChanged(String summary) { 1119 mSummaryLoader.setSummary(this, summary); 1120 } 1121 } 1122 1123 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1124 = new SummaryLoader.SummaryProviderFactory() { 1125 @Override 1126 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1127 SummaryLoader summaryLoader) { 1128 return new SummaryProvider(activity, summaryLoader); 1129 } 1130 }; 1131} 1132