WifiSettings.java revision 11478573ec0ffd02cb3812d9c2a87c31893c3846
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 protected WifiManager mWifiManager; 119 private WifiManager.ActionListener mConnectListener; 120 private WifiManager.ActionListener mSaveListener; 121 private WifiManager.ActionListener mForgetListener; 122 123 private WifiEnabler mWifiEnabler; 124 // An access point being editted is stored here. 125 private AccessPoint mSelectedAccessPoint; 126 127 private WifiDialog mDialog; 128 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 129 130 private ProgressBar mProgressHeader; 131 132 // this boolean extra specifies whether to disable the Next button when not connected. Used by 133 // account creation outside of setup wizard. 134 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 135 // This string extra specifies a network to open the connect dialog on, so the user can enter 136 // network credentials. This is used by quick settings for secured networks. 137 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 138 139 // should Next button only be enabled when we have a connection? 140 private boolean mEnableNextOnConnection; 141 142 // Save the dialog details 143 private int mDialogMode; 144 private AccessPoint mDlgAccessPoint; 145 private Bundle mAccessPointSavedState; 146 private Bundle mWifiNfcDialogSavedState; 147 148 private WifiTracker mWifiTracker; 149 private String mOpenSsid; 150 151 private HandlerThread mBgThread; 152 153 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 154 155 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 156 private PreferenceCategory mAccessPointsPreferenceCategory; 157 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 158 private Preference mAddPreference; 159 private Preference mConfigureWifiSettingsPreference; 160 private Preference mSavedNetworksPreference; 161 private LinkablePreference mStatusMessagePreference; 162 163 // For Search 164 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 165 166 /* End of "used in Wifi Setup context" */ 167 168 public WifiSettings() { 169 super(DISALLOW_CONFIG_WIFI); 170 } 171 172 @Override 173 public void onViewCreated(View view, Bundle savedInstanceState) { 174 super.onViewCreated(view, savedInstanceState); 175 final Activity activity = getActivity(); 176 if (activity != null) { 177 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 178 setProgressBarVisible(false); 179 } 180 } 181 182 @Override 183 public void onCreate(Bundle icicle) { 184 super.onCreate(icicle); 185 186 getPreferenceManager().setPreferenceComparisonCallback( 187 new PreferenceManager.SimplePreferenceComparisonCallback()); 188 addPreferencesFromResource(R.xml.wifi_settings); 189 190 mConnectedAccessPointPreferenceCategory = 191 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 192 193 mAccessPointsPreferenceCategory = 194 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 195 mAdditionalSettingsPreferenceCategory = 196 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 197 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 198 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 199 200 if (isUiRestricted()) { 201 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 202 } 203 204 Context prefContext = getPrefContext(); 205 mAddPreference = new Preference(prefContext); 206 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 207 mAddPreference.setTitle(R.string.wifi_add_network); 208 mStatusMessagePreference = new LinkablePreference(prefContext); 209 210 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 211 212 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 213 mBgThread.start(); 214 } 215 216 @Override 217 public void onDestroy() { 218 mBgThread.quit(); 219 super.onDestroy(); 220 } 221 222 @Override 223 public void onActivityCreated(Bundle savedInstanceState) { 224 super.onActivityCreated(savedInstanceState); 225 226 mWifiTracker = WifiTrackerFactory.create( 227 getActivity(), this, mBgThread.getLooper(), true, true, false); 228 mWifiManager = mWifiTracker.getManager(); 229 230 mConnectListener = new WifiManager.ActionListener() { 231 @Override 232 public void onSuccess() { 233 } 234 @Override 235 public void onFailure(int reason) { 236 Activity activity = getActivity(); 237 if (activity != null) { 238 Toast.makeText(activity, 239 R.string.wifi_failed_connect_message, 240 Toast.LENGTH_SHORT).show(); 241 } 242 } 243 }; 244 245 mSaveListener = new WifiManager.ActionListener() { 246 @Override 247 public void onSuccess() { 248 } 249 @Override 250 public void onFailure(int reason) { 251 Activity activity = getActivity(); 252 if (activity != null) { 253 Toast.makeText(activity, 254 R.string.wifi_failed_save_message, 255 Toast.LENGTH_SHORT).show(); 256 } 257 } 258 }; 259 260 mForgetListener = new WifiManager.ActionListener() { 261 @Override 262 public void onSuccess() { 263 } 264 @Override 265 public void onFailure(int reason) { 266 Activity activity = getActivity(); 267 if (activity != null) { 268 Toast.makeText(activity, 269 R.string.wifi_failed_forget_message, 270 Toast.LENGTH_SHORT).show(); 271 } 272 } 273 }; 274 275 if (savedInstanceState != null) { 276 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 277 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 278 mAccessPointSavedState = 279 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 280 } 281 282 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 283 mWifiNfcDialogSavedState = 284 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 285 } 286 } 287 288 // if we're supposed to enable/disable the Next button based on our current connection 289 // state, start it off in the right state 290 Intent intent = getActivity().getIntent(); 291 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 292 293 if (mEnableNextOnConnection) { 294 if (hasNextButton()) { 295 final ConnectivityManager connectivity = (ConnectivityManager) 296 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 297 if (connectivity != null) { 298 NetworkInfo info = connectivity.getNetworkInfo( 299 ConnectivityManager.TYPE_WIFI); 300 changeNextButtonState(info.isConnected()); 301 } 302 } 303 } 304 305 registerForContextMenu(getListView()); 306 setHasOptionsMenu(true); 307 308 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 309 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 310 onAccessPointsChanged(); 311 } 312 } 313 314 @Override 315 public void onDestroyView() { 316 super.onDestroyView(); 317 318 if (mWifiEnabler != null) { 319 mWifiEnabler.teardownSwitchController(); 320 } 321 } 322 323 @Override 324 public void onStart() { 325 super.onStart(); 326 327 // On/off switch is hidden for Setup Wizard (returns null) 328 mWifiEnabler = createWifiEnabler(); 329 330 mWifiTracker.startTracking(); 331 } 332 333 /** 334 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 335 */ 336 private WifiEnabler createWifiEnabler() { 337 final SettingsActivity activity = (SettingsActivity) getActivity(); 338 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 339 mMetricsFeatureProvider); 340 } 341 342 @Override 343 public void onResume() { 344 final Activity activity = getActivity(); 345 super.onResume(); 346 if (mWifiEnabler != null) { 347 mWifiEnabler.resume(activity); 348 } 349 350 activity.invalidateOptionsMenu(); 351 } 352 353 @Override 354 public void onPause() { 355 super.onPause(); 356 if (mWifiEnabler != null) { 357 mWifiEnabler.pause(); 358 } 359 } 360 361 @Override 362 public void onStop() { 363 super.onStop(); 364 mWifiTracker.stopTracking(); 365 } 366 367 @Override 368 public int getMetricsCategory() { 369 return MetricsEvent.WIFI; 370 } 371 372 @Override 373 public void onSaveInstanceState(Bundle outState) { 374 super.onSaveInstanceState(outState); 375 376 // If the dialog is showing, save its state. 377 if (mDialog != null && mDialog.isShowing()) { 378 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 379 if (mDlgAccessPoint != null) { 380 mAccessPointSavedState = new Bundle(); 381 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 382 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 383 } 384 } 385 386 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 387 Bundle savedState = new Bundle(); 388 mWifiToNfcDialog.saveState(savedState); 389 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 390 } 391 } 392 393 @Override 394 public boolean onOptionsItemSelected(MenuItem item) { 395 // If the user is not allowed to configure wifi, do not handle menu selections. 396 if (isUiRestricted()) return false; 397 398 switch (item.getItemId()) { 399 case MENU_ID_WPS_PBC: 400 showDialog(WPS_PBC_DIALOG_ID); 401 return true; 402 /* 403 case MENU_ID_P2P: 404 if (getActivity() instanceof SettingsActivity) { 405 ((SettingsActivity) getActivity()).startPreferencePanel( 406 WifiP2pSettings.class.getCanonicalName(), 407 null, 408 R.string.wifi_p2p_settings_title, null, 409 this, 0); 410 } else { 411 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 412 R.string.wifi_p2p_settings_title, -1, null); 413 } 414 return true; 415 */ 416 case MENU_ID_WPS_PIN: 417 showDialog(WPS_PIN_DIALOG_ID); 418 return true; 419 } 420 return super.onOptionsItemSelected(item); 421 } 422 423 @Override 424 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 425 Preference preference = (Preference) view.getTag(); 426 427 if (preference instanceof LongPressAccessPointPreference) { 428 mSelectedAccessPoint = 429 ((LongPressAccessPointPreference) preference).getAccessPoint(); 430 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 431 if (mSelectedAccessPoint.isConnectable()) { 432 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 433 } 434 435 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 436 // Some configs are ineditable 437 if (isEditabilityLockedDown(getActivity(), config)) { 438 return; 439 } 440 441 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 442 // Allow forgetting a network if either the network is saved or ephemerally 443 // connected. (In the latter case, "forget" blacklists the network so it won't 444 // be used again, ephemerally). 445 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 446 } 447 if (mSelectedAccessPoint.isSaved()) { 448 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 449 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 450 if (nfcAdapter != null && nfcAdapter.isEnabled() && 451 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 452 // Only allow writing of NFC tags for password-protected networks. 453 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 454 } 455 } 456 } 457 } 458 459 @Override 460 public boolean onContextItemSelected(MenuItem item) { 461 if (mSelectedAccessPoint == null) { 462 return super.onContextItemSelected(item); 463 } 464 switch (item.getItemId()) { 465 case MENU_ID_CONNECT: { 466 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 467 if (isSavedNetwork) { 468 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 469 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 470 /** Bypass dialog for unsecured networks */ 471 mSelectedAccessPoint.generateOpenNetworkConfig(); 472 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 473 } else { 474 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 475 } 476 return true; 477 } 478 case MENU_ID_FORGET: { 479 forget(); 480 return true; 481 } 482 case MENU_ID_MODIFY: { 483 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 484 return true; 485 } 486 case MENU_ID_WRITE_NFC: 487 showDialog(WRITE_NFC_DIALOG_ID); 488 return true; 489 490 } 491 return super.onContextItemSelected(item); 492 } 493 494 @Override 495 public boolean onPreferenceTreeClick(Preference preference) { 496 // If the preference has a fragment set, open that 497 if (preference.getFragment() != null) { 498 preference.setOnPreferenceClickListener(null); 499 return super.onPreferenceTreeClick(preference); 500 } 501 502 if (preference instanceof LongPressAccessPointPreference) { 503 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 504 if (mSelectedAccessPoint == null) { 505 return false; 506 } 507 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 508 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 509 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 510 mSelectedAccessPoint.generateOpenNetworkConfig(); 511 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 512 } else if (mSelectedAccessPoint.isSaved()) { 513 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 514 } else { 515 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 516 } 517 } else if (preference == mAddPreference) { 518 onAddNetworkPressed(); 519 } else { 520 return super.onPreferenceTreeClick(preference); 521 } 522 return true; 523 } 524 525 private void showDialog(AccessPoint accessPoint, int dialogMode) { 526 if (accessPoint != null) { 527 WifiConfiguration config = accessPoint.getConfig(); 528 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 529 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 530 RestrictedLockUtils.getDeviceOwner(getActivity())); 531 return; 532 } 533 } 534 535 if (mDialog != null) { 536 removeDialog(WIFI_DIALOG_ID); 537 mDialog = null; 538 } 539 540 // Save the access point and edit mode 541 mDlgAccessPoint = accessPoint; 542 mDialogMode = dialogMode; 543 544 showDialog(WIFI_DIALOG_ID); 545 } 546 547 @Override 548 public Dialog onCreateDialog(int dialogId) { 549 switch (dialogId) { 550 case WIFI_DIALOG_ID: 551 AccessPoint ap = mDlgAccessPoint; // For manual launch 552 if (ap == null) { // For re-launch from saved state 553 if (mAccessPointSavedState != null) { 554 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 555 // For repeated orientation changes 556 mDlgAccessPoint = ap; 557 // Reset the saved access point data 558 mAccessPointSavedState = null; 559 } 560 } 561 // If it's null, fine, it's for Add Network 562 mSelectedAccessPoint = ap; 563 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 564 /* no hide submit/connect */ false); 565 return mDialog; 566 case WPS_PBC_DIALOG_ID: 567 return new WpsDialog(getActivity(), WpsInfo.PBC); 568 case WPS_PIN_DIALOG_ID: 569 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 570 case WRITE_NFC_DIALOG_ID: 571 if (mSelectedAccessPoint != null) { 572 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 573 getActivity(), 574 mSelectedAccessPoint.getSecurity(), 575 new WifiManagerWrapper(mWifiManager)); 576 } else if (mWifiNfcDialogSavedState != null) { 577 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 578 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 579 } 580 581 return mWifiToNfcDialog; 582 } 583 return super.onCreateDialog(dialogId); 584 } 585 586 @Override 587 public int getDialogMetricsCategory(int dialogId) { 588 switch (dialogId) { 589 case WIFI_DIALOG_ID: 590 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 591 case WPS_PBC_DIALOG_ID: 592 return MetricsEvent.DIALOG_WIFI_PBC; 593 case WPS_PIN_DIALOG_ID: 594 return MetricsEvent.DIALOG_WIFI_PIN; 595 case WRITE_NFC_DIALOG_ID: 596 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 597 default: 598 return 0; 599 } 600 } 601 602 /** 603 * Shows the latest access points available with supplemental information like 604 * the strength of network and the security for it. 605 */ 606 @Override 607 public void onAccessPointsChanged() { 608 // Safeguard from some delayed event handling 609 if (getActivity() == null) return; 610 final int wifiState = mWifiManager.getWifiState(); 611 if (isUiRestricted()) { 612 removeConnectedAccessPointPreference(); 613 mAccessPointsPreferenceCategory.removeAll(); 614 if (!isUiRestrictedByOnlyAdmin()) { 615 if (wifiState == WifiManager.WIFI_AP_STATE_DISABLED) { 616 setOffMessage(); 617 } else { 618 addMessagePreference(R.string.wifi_empty_list_user_restricted); 619 } 620 } 621 return; 622 } 623 624 switch (wifiState) { 625 case WifiManager.WIFI_STATE_ENABLED: 626 setProgressBarVisible(true); 627 // Have the progress bar displayed before starting to modify APs 628 getView().postDelayed(() -> { 629 updateAccessPointPreferences(); 630 }, 300 /* delay milliseconds */); 631 break; 632 633 case WifiManager.WIFI_STATE_ENABLING: 634 removeConnectedAccessPointPreference(); 635 mAccessPointsPreferenceCategory.removeAll(); 636 setProgressBarVisible(true); 637 break; 638 639 case WifiManager.WIFI_STATE_DISABLING: 640 addMessagePreference(R.string.wifi_stopping); 641 setProgressBarVisible(true); 642 break; 643 644 case WifiManager.WIFI_STATE_DISABLED: 645 setOffMessage(); 646 setConfigureWifiSettingsVisibility(); 647 setProgressBarVisible(false); 648 break; 649 } 650 } 651 652 private void updateAccessPointPreferences() { 653 // AccessPoints are sorted by the WifiTracker 654 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 655 656 boolean hasAvailableAccessPoints = false; 657 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 658 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 659 660 int index = 661 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 662 int numAccessPoints = accessPoints.size(); 663 for (; index < numAccessPoints; index++) { 664 AccessPoint accessPoint = accessPoints.get(index); 665 // Ignore access points that are out of range. 666 if (accessPoint.isReachable()) { 667 String key = accessPoint.getBssid(); 668 if (TextUtils.isEmpty(key)) { 669 key = accessPoint.getSsidStr(); 670 } 671 hasAvailableAccessPoints = true; 672 LongPressAccessPointPreference pref = 673 (LongPressAccessPointPreference) getCachedPreference(key); 674 if (pref != null) { 675 pref.setOrder(index); 676 continue; 677 } 678 LongPressAccessPointPreference preference = 679 createLongPressActionPointPreference(accessPoint); 680 preference.setKey(key); 681 preference.setOrder(index); 682 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 683 && !accessPoint.isSaved() 684 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 685 onPreferenceTreeClick(preference); 686 mOpenSsid = null; 687 } 688 mAccessPointsPreferenceCategory.addPreference(preference); 689 accessPoint.setListener(WifiSettings.this); 690 preference.refresh(); 691 } 692 } 693 removeCachedPrefs(mAccessPointsPreferenceCategory); 694 mAddPreference.setOrder(index); 695 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 696 setConfigureWifiSettingsVisibility(); 697 698 if (!hasAvailableAccessPoints) { 699 setProgressBarVisible(true); 700 Preference pref = new Preference(getPrefContext()); 701 pref.setSelectable(false); 702 pref.setSummary(R.string.wifi_empty_list_wifi_on); 703 pref.setOrder(index++); 704 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 705 mAccessPointsPreferenceCategory.addPreference(pref); 706 } else { 707 // Continuing showing progress bar for an additional delay to overlap with animation 708 getView().postDelayed(() -> { 709 setProgressBarVisible(false); 710 }, 1700 /* delay millis */); 711 } 712 } 713 714 @NonNull 715 private LongPressAccessPointPreference createLongPressActionPointPreference( 716 AccessPoint accessPoint) { 717 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 718 false, R.drawable.ic_wifi_signal_0, this); 719 } 720 721 /** 722 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 723 * shown. 724 */ 725 private boolean configureConnectedAccessPointPreferenceCategory( 726 List<AccessPoint> accessPoints) { 727 if (accessPoints.size() == 0) { 728 removeConnectedAccessPointPreference(); 729 return false; 730 } 731 732 AccessPoint connectedAp = accessPoints.get(0); 733 if (!connectedAp.isActive()) { 734 removeConnectedAccessPointPreference(); 735 return false; 736 } 737 738 // Is the preference category empty? 739 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 740 addConnectedAccessPointPreference(connectedAp); 741 return true; 742 } 743 744 // Is the previous currently connected SSID different from the new one? 745 if (!((AccessPointPreference) 746 mConnectedAccessPointPreferenceCategory.getPreference(0)) 747 .getAccessPoint().getSsidStr().equals( 748 connectedAp.getSsidStr())) { 749 removeConnectedAccessPointPreference(); 750 addConnectedAccessPointPreference(connectedAp); 751 return true; 752 } 753 754 // Else same AP is connected, simply refresh the connected access point preference 755 // (first and only access point in this category). 756 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 757 .refresh(); 758 return true; 759 } 760 761 /** 762 * Creates a Preference for the given {@link AccessPoint} and adds it to the 763 * {@link #mConnectedAccessPointPreferenceCategory}. 764 */ 765 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 766 String key = connectedAp.getBssid(); 767 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 768 getCachedPreference(key); 769 if (pref == null) { 770 pref = createLongPressActionPointPreference(connectedAp); 771 } 772 773 // Save the state of the current access point in the bundle so that we can restore it 774 // in the Wifi Network Details Fragment 775 pref.getAccessPoint().saveWifiState(pref.getExtras()); 776 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 777 778 pref.refresh(); 779 mConnectedAccessPointPreferenceCategory.addPreference(pref); 780 mConnectedAccessPointPreferenceCategory.setVisible(true); 781 } 782 783 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 784 private void removeConnectedAccessPointPreference() { 785 mConnectedAccessPointPreferenceCategory.removeAll(); 786 mConnectedAccessPointPreferenceCategory.setVisible(false); 787 } 788 789 private void setConfigureWifiSettingsVisibility() { 790 if (isUiRestricted()) { 791 mAdditionalSettingsPreferenceCategory.removeAll(); 792 return; 793 } 794 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 795 boolean wifiWakeupEnabled = Settings.Global.getInt( 796 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 797 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 798 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 799 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 800 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 801 if (numSavedNetworks > 0) { 802 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 803 mSavedNetworksPreference.setSummary( 804 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 805 numSavedNetworks, numSavedNetworks)); 806 } else { 807 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 808 } 809 } 810 811 private void setOffMessage() { 812 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 813 814 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 815 // read the system settings directly. Because when the device is in Airplane mode, even if 816 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 817 final ContentResolver resolver = getActivity().getContentResolver(); 818 final boolean wifiScanningMode = !isUiRestricted() && Settings.Global.getInt( 819 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 820 821 if (!wifiScanningMode) { 822 // Show only the brief text if the user is not allowed to configure scanning settings, 823 // or the scanning mode has been turned off. 824 mStatusMessagePreference.setTitle(briefText); 825 } else { 826 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 827 @Override 828 public void onClick() { 829 final SettingsActivity activity = (SettingsActivity) getActivity(); 830 activity.startPreferencePanel(WifiSettings.this, 831 ScanningSettings.class.getName(), 832 null, R.string.location_scanning_screen_title, null, null, 0); 833 } 834 }; 835 mStatusMessagePreference.setText( 836 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 837 } 838 removeConnectedAccessPointPreference(); 839 mAccessPointsPreferenceCategory.removeAll(); 840 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 841 } 842 843 private void addMessagePreference(int messageId) { 844 mStatusMessagePreference.setTitle(messageId); 845 removeConnectedAccessPointPreference(); 846 mAccessPointsPreferenceCategory.removeAll(); 847 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 848 } 849 850 protected void setProgressBarVisible(boolean visible) { 851 if (mProgressHeader != null) { 852 mProgressHeader.setVisibility( 853 visible && !isUiRestricted() ? View.VISIBLE : View.INVISIBLE); 854 } 855 } 856 857 @Override 858 public void onWifiStateChanged(int state) { 859 switch (state) { 860 case WifiManager.WIFI_STATE_ENABLING: 861 addMessagePreference(R.string.wifi_starting); 862 setProgressBarVisible(true); 863 break; 864 865 case WifiManager.WIFI_STATE_DISABLED: 866 setOffMessage(); 867 setProgressBarVisible(false); 868 break; 869 } 870 } 871 872 @Override 873 public void onConnectedChanged() { 874 onAccessPointsChanged(); 875 changeNextButtonState(mWifiTracker.isConnected()); 876 } 877 878 /** 879 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 880 * Wifi setup screens, not in usual wifi settings screen. 881 * 882 * @param enabled true when the device is connected to a wifi network. 883 */ 884 private void changeNextButtonState(boolean enabled) { 885 if (mEnableNextOnConnection && hasNextButton()) { 886 getNextButton().setEnabled(enabled); 887 } 888 } 889 890 @Override 891 public void onForget(WifiDialog dialog) { 892 forget(); 893 } 894 895 @Override 896 public void onSubmit(WifiDialog dialog) { 897 if (mDialog != null) { 898 submit(mDialog.getController()); 899 } 900 } 901 902 /* package */ void submit(WifiConfigController configController) { 903 904 final WifiConfiguration config = configController.getConfig(); 905 906 if (config == null) { 907 if (mSelectedAccessPoint != null 908 && mSelectedAccessPoint.isSaved()) { 909 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 910 } 911 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 912 mWifiManager.save(config, mSaveListener); 913 } else { 914 mWifiManager.save(config, mSaveListener); 915 if (mSelectedAccessPoint != null) { // Not an "Add network" 916 connect(config, false /* isSavedNetwork */); 917 } 918 } 919 920 mWifiTracker.resumeScanning(); 921 } 922 923 /* package */ void forget() { 924 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 925 if (!mSelectedAccessPoint.isSaved()) { 926 if (mSelectedAccessPoint.getNetworkInfo() != null && 927 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 928 // Network is active but has no network ID - must be ephemeral. 929 mWifiManager.disableEphemeralNetwork( 930 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 931 } else { 932 // Should not happen, but a monkey seems to trigger it 933 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 934 return; 935 } 936 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 937 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 938 } else { 939 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 940 } 941 942 mWifiTracker.resumeScanning(); 943 944 // We need to rename/replace "Next" button in wifi setup context. 945 changeNextButtonState(false); 946 } 947 948 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 949 // Log subtype if configuration is a saved network. 950 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 951 isSavedNetwork); 952 mWifiManager.connect(config, mConnectListener); 953 } 954 955 protected void connect(final int networkId, boolean isSavedNetwork) { 956 // Log subtype if configuration is a saved network. 957 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 958 isSavedNetwork); 959 mWifiManager.connect(networkId, mConnectListener); 960 } 961 962 /** 963 * Called when "add network" button is pressed. 964 */ 965 /* package */ void onAddNetworkPressed() { 966 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 967 // No exact access point is selected. 968 mSelectedAccessPoint = null; 969 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 970 } 971 972 @Override 973 protected int getHelpResource() { 974 return R.string.help_url_wifi; 975 } 976 977 @Override 978 public void onAccessPointChanged(final AccessPoint accessPoint) { 979 View view = getView(); 980 if (view != null) { 981 view.post(new Runnable() { 982 @Override 983 public void run() { 984 Object tag = accessPoint.getTag(); 985 if (tag != null) { 986 ((LongPressAccessPointPreference) tag).refresh(); 987 } 988 } 989 }); 990 } 991 } 992 993 @Override 994 public void onLevelChanged(AccessPoint accessPoint) { 995 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 996 } 997 998 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 999 new BaseSearchIndexProvider() { 1000 @Override 1001 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1002 final List<SearchIndexableRaw> result = new ArrayList<>(); 1003 final Resources res = context.getResources(); 1004 1005 // Add fragment title 1006 SearchIndexableRaw data = new SearchIndexableRaw(context); 1007 data.title = res.getString(R.string.wifi_settings); 1008 data.screenTitle = res.getString(R.string.wifi_settings); 1009 data.keywords = res.getString(R.string.keywords_wifi); 1010 data.key = DATA_KEY_REFERENCE; 1011 result.add(data); 1012 1013 // Add saved Wi-Fi access points 1014 final List<AccessPoint> accessPoints = 1015 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1016 for (AccessPoint accessPoint : accessPoints) { 1017 data = new SearchIndexableRaw(context); 1018 data.title = accessPoint.getSsidStr(); 1019 data.screenTitle = res.getString(R.string.wifi_settings); 1020 data.enabled = enabled; 1021 result.add(data); 1022 } 1023 1024 return result; 1025 } 1026 }; 1027 1028 /** 1029 * Returns true if the config is not editable through Settings. 1030 * @param context Context of caller 1031 * @param config The WiFi config. 1032 * @return true if the config is not editable through Settings. 1033 */ 1034 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1035 return !canModifyNetwork(context, config); 1036 } 1037 1038 /** 1039 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1040 * TODO: refactor to have only one method. 1041 * @param context Context of caller 1042 * @param config The WiFi config. 1043 * @return true if Settings can modify the config. 1044 */ 1045 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1046 if (config == null) { 1047 return true; 1048 } 1049 1050 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1051 Context.DEVICE_POLICY_SERVICE); 1052 1053 // Check if device has DPM capability. If it has and dpm is still null, then we 1054 // treat this case with suspicion and bail out. 1055 final PackageManager pm = context.getPackageManager(); 1056 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1057 return false; 1058 } 1059 1060 boolean isConfigEligibleForLockdown = false; 1061 if (dpm != null) { 1062 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1063 if (deviceOwner != null) { 1064 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1065 try { 1066 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1067 deviceOwnerUserId); 1068 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1069 } catch (NameNotFoundException e) { 1070 // don't care 1071 } 1072 } 1073 } 1074 if (!isConfigEligibleForLockdown) { 1075 return true; 1076 } 1077 1078 final ContentResolver resolver = context.getContentResolver(); 1079 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1080 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1081 return !isLockdownFeatureEnabled; 1082 } 1083 1084 private static class SummaryProvider 1085 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1086 1087 private final Context mContext; 1088 private final SummaryLoader mSummaryLoader; 1089 1090 @VisibleForTesting 1091 WifiSummaryUpdater mSummaryHelper; 1092 1093 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1094 mContext = context; 1095 mSummaryLoader = summaryLoader; 1096 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1097 } 1098 1099 1100 @Override 1101 public void setListening(boolean listening) { 1102 mSummaryHelper.register(listening); 1103 } 1104 1105 @Override 1106 public void onSummaryChanged(String summary) { 1107 mSummaryLoader.setSummary(this, summary); 1108 } 1109 } 1110 1111 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1112 = new SummaryLoader.SummaryProviderFactory() { 1113 @Override 1114 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1115 SummaryLoader summaryLoader) { 1116 return new SummaryProvider(activity, summaryLoader); 1117 } 1118 }; 1119} 1120