WifiSettings.java revision 5e0c60d2ac8d0ede4f372a85e700de2a3098b2cf
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); 199 200 mAccessPointsPreferenceCategory = 201 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 202 mAdditionalSettingsPreferenceCategory = 203 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 204 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 205 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 206 207 if (isUiRestricted()) { 208 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 209 } 210 211 Context prefContext = getPrefContext(); 212 mAddPreference = new Preference(prefContext); 213 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 214 mAddPreference.setTitle(R.string.wifi_add_network); 215 mStatusMessagePreference = new LinkablePreference(prefContext); 216 217 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 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 onAccessPointsChanged(); 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 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 517 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 518 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 519 mSelectedAccessPoint.generateOpenNetworkConfig(); 520 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 521 } else if (mSelectedAccessPoint.isSaved()) { 522 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 523 } else { 524 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 525 } 526 } else if (preference == mAddPreference) { 527 onAddNetworkPressed(); 528 } else { 529 return super.onPreferenceTreeClick(preference); 530 } 531 return true; 532 } 533 534 private void showDialog(AccessPoint accessPoint, int dialogMode) { 535 if (accessPoint != null) { 536 WifiConfiguration config = accessPoint.getConfig(); 537 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 538 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 539 RestrictedLockUtils.getDeviceOwner(getActivity())); 540 return; 541 } 542 } 543 544 if (mDialog != null) { 545 removeDialog(WIFI_DIALOG_ID); 546 mDialog = null; 547 } 548 549 // Save the access point and edit mode 550 mDlgAccessPoint = accessPoint; 551 mDialogMode = dialogMode; 552 553 showDialog(WIFI_DIALOG_ID); 554 } 555 556 @Override 557 public Dialog onCreateDialog(int dialogId) { 558 switch (dialogId) { 559 case WIFI_DIALOG_ID: 560 AccessPoint ap = mDlgAccessPoint; // For manual launch 561 if (ap == null) { // For re-launch from saved state 562 if (mAccessPointSavedState != null) { 563 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 564 // For repeated orientation changes 565 mDlgAccessPoint = ap; 566 // Reset the saved access point data 567 mAccessPointSavedState = null; 568 } 569 } 570 // If it's null, fine, it's for Add Network 571 mSelectedAccessPoint = ap; 572 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 573 /* no hide submit/connect */ false); 574 return mDialog; 575 case WPS_PBC_DIALOG_ID: 576 return new WpsDialog(getActivity(), WpsInfo.PBC); 577 case WPS_PIN_DIALOG_ID: 578 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 579 case WRITE_NFC_DIALOG_ID: 580 if (mSelectedAccessPoint != null) { 581 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 582 getActivity(), 583 mSelectedAccessPoint.getSecurity(), 584 new WifiManagerWrapper(mWifiManager)); 585 } else if (mWifiNfcDialogSavedState != null) { 586 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 587 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 588 } 589 590 return mWifiToNfcDialog; 591 } 592 return super.onCreateDialog(dialogId); 593 } 594 595 @Override 596 public int getDialogMetricsCategory(int dialogId) { 597 switch (dialogId) { 598 case WIFI_DIALOG_ID: 599 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 600 case WPS_PBC_DIALOG_ID: 601 return MetricsEvent.DIALOG_WIFI_PBC; 602 case WPS_PIN_DIALOG_ID: 603 return MetricsEvent.DIALOG_WIFI_PIN; 604 case WRITE_NFC_DIALOG_ID: 605 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 606 default: 607 return 0; 608 } 609 } 610 611 /** 612 * Shows the latest access points available with supplemental information like 613 * the strength of network and the security for it. 614 */ 615 @Override 616 public void onAccessPointsChanged() { 617 // Safeguard from some delayed event handling 618 if (getActivity() == null) return; 619 final int wifiState = mWifiManager.getWifiState(); 620 if (isUiRestricted()) { 621 removeConnectedAccessPointPreference(); 622 mAccessPointsPreferenceCategory.removeAll(); 623 if (!isUiRestrictedByOnlyAdmin()) { 624 if (wifiState == WifiManager.WIFI_AP_STATE_DISABLED) { 625 setOffMessage(); 626 } else { 627 addMessagePreference(R.string.wifi_empty_list_user_restricted); 628 } 629 } 630 return; 631 } 632 633 switch (wifiState) { 634 case WifiManager.WIFI_STATE_ENABLED: 635 setProgressBarVisible(true); 636 // Have the progress bar displayed before starting to modify APs 637 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 638 break; 639 640 case WifiManager.WIFI_STATE_ENABLING: 641 removeConnectedAccessPointPreference(); 642 mAccessPointsPreferenceCategory.removeAll(); 643 setProgressBarVisible(true); 644 break; 645 646 case WifiManager.WIFI_STATE_DISABLING: 647 addMessagePreference(R.string.wifi_stopping); 648 setProgressBarVisible(true); 649 break; 650 651 case WifiManager.WIFI_STATE_DISABLED: 652 setOffMessage(); 653 setConfigureWifiSettingsVisibility(); 654 setProgressBarVisible(false); 655 break; 656 } 657 } 658 659 private void updateAccessPointPreferences() { 660 // AccessPoints are sorted by the WifiTracker 661 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 662 663 boolean hasAvailableAccessPoints = false; 664 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 665 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 666 667 int index = 668 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 669 int numAccessPoints = accessPoints.size(); 670 for (; index < numAccessPoints; index++) { 671 AccessPoint accessPoint = accessPoints.get(index); 672 // Ignore access points that are out of range. 673 if (accessPoint.isReachable()) { 674 String key = accessPoint.getBssid(); 675 if (TextUtils.isEmpty(key)) { 676 key = accessPoint.getSsidStr(); 677 } 678 hasAvailableAccessPoints = true; 679 LongPressAccessPointPreference pref = 680 (LongPressAccessPointPreference) getCachedPreference(key); 681 if (pref != null) { 682 pref.setOrder(index); 683 continue; 684 } 685 LongPressAccessPointPreference preference = 686 createLongPressActionPointPreference(accessPoint); 687 preference.setKey(key); 688 preference.setOrder(index); 689 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 690 && !accessPoint.isSaved() 691 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 692 onPreferenceTreeClick(preference); 693 mOpenSsid = null; 694 } 695 mAccessPointsPreferenceCategory.addPreference(preference); 696 accessPoint.setListener(WifiSettings.this); 697 preference.refresh(); 698 } 699 } 700 removeCachedPrefs(mAccessPointsPreferenceCategory); 701 mAddPreference.setOrder(index); 702 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 703 setConfigureWifiSettingsVisibility(); 704 705 if (!hasAvailableAccessPoints) { 706 setProgressBarVisible(true); 707 Preference pref = new Preference(getPrefContext()); 708 pref.setSelectable(false); 709 pref.setSummary(R.string.wifi_empty_list_wifi_on); 710 pref.setOrder(index++); 711 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 712 mAccessPointsPreferenceCategory.addPreference(pref); 713 } else { 714 // Continuing showing progress bar for an additional delay to overlap with animation 715 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 716 } 717 } 718 719 @NonNull 720 private LongPressAccessPointPreference createLongPressActionPointPreference( 721 AccessPoint accessPoint) { 722 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 723 false, R.drawable.ic_wifi_signal_0, this); 724 } 725 726 /** 727 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 728 * shown. 729 */ 730 private boolean configureConnectedAccessPointPreferenceCategory( 731 List<AccessPoint> accessPoints) { 732 if (accessPoints.size() == 0) { 733 removeConnectedAccessPointPreference(); 734 return false; 735 } 736 737 AccessPoint connectedAp = accessPoints.get(0); 738 if (!connectedAp.isActive()) { 739 removeConnectedAccessPointPreference(); 740 return false; 741 } 742 743 // Is the preference category empty? 744 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 745 addConnectedAccessPointPreference(connectedAp); 746 return true; 747 } 748 749 // Is the previous currently connected SSID different from the new one? 750 if (!((AccessPointPreference) 751 mConnectedAccessPointPreferenceCategory.getPreference(0)) 752 .getAccessPoint().getSsidStr().equals( 753 connectedAp.getSsidStr())) { 754 removeConnectedAccessPointPreference(); 755 addConnectedAccessPointPreference(connectedAp); 756 return true; 757 } 758 759 // Else same AP is connected, simply refresh the connected access point preference 760 // (first and only access point in this category). 761 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 762 .refresh(); 763 return true; 764 } 765 766 /** 767 * Creates a Preference for the given {@link AccessPoint} and adds it to the 768 * {@link #mConnectedAccessPointPreferenceCategory}. 769 */ 770 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 771 String key = connectedAp.getBssid(); 772 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 773 getCachedPreference(key); 774 if (pref == null) { 775 pref = createLongPressActionPointPreference(connectedAp); 776 } 777 778 // Save the state of the current access point in the bundle so that we can restore it 779 // in the Wifi Network Details Fragment 780 pref.getAccessPoint().saveWifiState(pref.getExtras()); 781 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 782 783 pref.refresh(); 784 mConnectedAccessPointPreferenceCategory.addPreference(pref); 785 mConnectedAccessPointPreferenceCategory.setVisible(true); 786 } 787 788 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 789 private void removeConnectedAccessPointPreference() { 790 mConnectedAccessPointPreferenceCategory.removeAll(); 791 mConnectedAccessPointPreferenceCategory.setVisible(false); 792 } 793 794 private void setConfigureWifiSettingsVisibility() { 795 if (isUiRestricted()) { 796 mAdditionalSettingsPreferenceCategory.removeAll(); 797 return; 798 } 799 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 800 boolean wifiWakeupEnabled = Settings.Global.getInt( 801 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 802 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 803 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 804 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 805 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 806 if (numSavedNetworks > 0) { 807 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 808 mSavedNetworksPreference.setSummary( 809 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 810 numSavedNetworks, numSavedNetworks)); 811 } else { 812 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 813 } 814 } 815 816 private void setOffMessage() { 817 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 818 819 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 820 // read the system settings directly. Because when the device is in Airplane mode, even if 821 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 822 final ContentResolver resolver = getActivity().getContentResolver(); 823 final boolean wifiScanningMode = !isUiRestricted() && Settings.Global.getInt( 824 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 825 826 if (!wifiScanningMode) { 827 // Show only the brief text if the user is not allowed to configure scanning settings, 828 // or the scanning mode has been turned off. 829 mStatusMessagePreference.setTitle(briefText); 830 } else { 831 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 832 @Override 833 public void onClick() { 834 final SettingsActivity activity = (SettingsActivity) getActivity(); 835 activity.startPreferencePanel(WifiSettings.this, 836 ScanningSettings.class.getName(), 837 null, R.string.location_scanning_screen_title, null, null, 0); 838 } 839 }; 840 mStatusMessagePreference.setText( 841 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 842 } 843 removeConnectedAccessPointPreference(); 844 mAccessPointsPreferenceCategory.removeAll(); 845 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 846 } 847 848 private void addMessagePreference(int messageId) { 849 mStatusMessagePreference.setTitle(messageId); 850 removeConnectedAccessPointPreference(); 851 mAccessPointsPreferenceCategory.removeAll(); 852 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 853 } 854 855 protected void setProgressBarVisible(boolean visible) { 856 if (mProgressHeader != null) { 857 mProgressHeader.setVisibility( 858 visible && !isUiRestricted() ? View.VISIBLE : View.INVISIBLE); 859 } 860 } 861 862 @Override 863 public void onWifiStateChanged(int state) { 864 switch (state) { 865 case WifiManager.WIFI_STATE_ENABLING: 866 addMessagePreference(R.string.wifi_starting); 867 setProgressBarVisible(true); 868 break; 869 870 case WifiManager.WIFI_STATE_DISABLED: 871 setOffMessage(); 872 setProgressBarVisible(false); 873 break; 874 } 875 } 876 877 @Override 878 public void onConnectedChanged() { 879 onAccessPointsChanged(); 880 changeNextButtonState(mWifiTracker.isConnected()); 881 } 882 883 /** 884 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 885 * Wifi setup screens, not in usual wifi settings screen. 886 * 887 * @param enabled true when the device is connected to a wifi network. 888 */ 889 private void changeNextButtonState(boolean enabled) { 890 if (mEnableNextOnConnection && hasNextButton()) { 891 getNextButton().setEnabled(enabled); 892 } 893 } 894 895 @Override 896 public void onForget(WifiDialog dialog) { 897 forget(); 898 } 899 900 @Override 901 public void onSubmit(WifiDialog dialog) { 902 if (mDialog != null) { 903 submit(mDialog.getController()); 904 } 905 } 906 907 /* package */ void submit(WifiConfigController configController) { 908 909 final WifiConfiguration config = configController.getConfig(); 910 911 if (config == null) { 912 if (mSelectedAccessPoint != null 913 && mSelectedAccessPoint.isSaved()) { 914 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 915 } 916 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 917 mWifiManager.save(config, mSaveListener); 918 } else { 919 mWifiManager.save(config, mSaveListener); 920 if (mSelectedAccessPoint != null) { // Not an "Add network" 921 connect(config, false /* isSavedNetwork */); 922 } 923 } 924 925 mWifiTracker.resumeScanning(); 926 } 927 928 /* package */ void forget() { 929 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 930 if (!mSelectedAccessPoint.isSaved()) { 931 if (mSelectedAccessPoint.getNetworkInfo() != null && 932 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 933 // Network is active but has no network ID - must be ephemeral. 934 mWifiManager.disableEphemeralNetwork( 935 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 936 } else { 937 // Should not happen, but a monkey seems to trigger it 938 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 939 return; 940 } 941 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 942 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 943 } else { 944 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 945 } 946 947 mWifiTracker.resumeScanning(); 948 949 // We need to rename/replace "Next" button in wifi setup context. 950 changeNextButtonState(false); 951 } 952 953 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 954 // Log subtype if configuration is a saved network. 955 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 956 isSavedNetwork); 957 mWifiManager.connect(config, mConnectListener); 958 } 959 960 protected void connect(final int networkId, boolean isSavedNetwork) { 961 // Log subtype if configuration is a saved network. 962 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 963 isSavedNetwork); 964 mWifiManager.connect(networkId, mConnectListener); 965 } 966 967 /** 968 * Called when "add network" button is pressed. 969 */ 970 /* package */ void onAddNetworkPressed() { 971 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 972 // No exact access point is selected. 973 mSelectedAccessPoint = null; 974 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 975 } 976 977 @Override 978 protected int getHelpResource() { 979 return R.string.help_url_wifi; 980 } 981 982 @Override 983 public void onAccessPointChanged(final AccessPoint accessPoint) { 984 View view = getView(); 985 if (view != null) { 986 view.post(new Runnable() { 987 @Override 988 public void run() { 989 Object tag = accessPoint.getTag(); 990 if (tag != null) { 991 ((LongPressAccessPointPreference) tag).refresh(); 992 } 993 } 994 }); 995 } 996 } 997 998 @Override 999 public void onLevelChanged(AccessPoint accessPoint) { 1000 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1001 } 1002 1003 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1004 new BaseSearchIndexProvider() { 1005 @Override 1006 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1007 final List<SearchIndexableRaw> result = new ArrayList<>(); 1008 final Resources res = context.getResources(); 1009 1010 // Add fragment title 1011 SearchIndexableRaw data = new SearchIndexableRaw(context); 1012 data.title = res.getString(R.string.wifi_settings); 1013 data.screenTitle = res.getString(R.string.wifi_settings); 1014 data.keywords = res.getString(R.string.keywords_wifi); 1015 data.key = DATA_KEY_REFERENCE; 1016 result.add(data); 1017 1018 // Add saved Wi-Fi access points 1019 final List<AccessPoint> accessPoints = 1020 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1021 for (AccessPoint accessPoint : accessPoints) { 1022 data = new SearchIndexableRaw(context); 1023 data.title = accessPoint.getSsidStr(); 1024 data.screenTitle = res.getString(R.string.wifi_settings); 1025 data.enabled = enabled; 1026 result.add(data); 1027 } 1028 1029 return result; 1030 } 1031 }; 1032 1033 /** 1034 * Returns true if the config is not editable through Settings. 1035 * @param context Context of caller 1036 * @param config The WiFi config. 1037 * @return true if the config is not editable through Settings. 1038 */ 1039 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1040 return !canModifyNetwork(context, config); 1041 } 1042 1043 /** 1044 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1045 * TODO: refactor to have only one method. 1046 * @param context Context of caller 1047 * @param config The WiFi config. 1048 * @return true if Settings can modify the config. 1049 */ 1050 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1051 if (config == null) { 1052 return true; 1053 } 1054 1055 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1056 Context.DEVICE_POLICY_SERVICE); 1057 1058 // Check if device has DPM capability. If it has and dpm is still null, then we 1059 // treat this case with suspicion and bail out. 1060 final PackageManager pm = context.getPackageManager(); 1061 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1062 return false; 1063 } 1064 1065 boolean isConfigEligibleForLockdown = false; 1066 if (dpm != null) { 1067 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1068 if (deviceOwner != null) { 1069 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1070 try { 1071 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1072 deviceOwnerUserId); 1073 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1074 } catch (NameNotFoundException e) { 1075 // don't care 1076 } 1077 } 1078 } 1079 if (!isConfigEligibleForLockdown) { 1080 return true; 1081 } 1082 1083 final ContentResolver resolver = context.getContentResolver(); 1084 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1085 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1086 return !isLockdownFeatureEnabled; 1087 } 1088 1089 private static class SummaryProvider 1090 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1091 1092 private final Context mContext; 1093 private final SummaryLoader mSummaryLoader; 1094 1095 @VisibleForTesting 1096 WifiSummaryUpdater mSummaryHelper; 1097 1098 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1099 mContext = context; 1100 mSummaryLoader = summaryLoader; 1101 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1102 } 1103 1104 1105 @Override 1106 public void setListening(boolean listening) { 1107 mSummaryHelper.register(listening); 1108 } 1109 1110 @Override 1111 public void onSummaryChanged(String summary) { 1112 mSummaryLoader.setSummary(this, summary); 1113 } 1114 } 1115 1116 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1117 = new SummaryLoader.SummaryProviderFactory() { 1118 @Override 1119 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1120 SummaryLoader summaryLoader) { 1121 return new SummaryProvider(activity, summaryLoader); 1122 } 1123 }; 1124} 1125