WifiSettings.java revision bb46d23c8f0e264863457d2b7a342ac331558b04
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.settings.wifi; 18 19import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 20 21import android.annotation.NonNull; 22import android.app.Activity; 23import android.app.Dialog; 24import android.app.admin.DevicePolicyManager; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.PackageManager; 30import android.content.pm.PackageManager.NameNotFoundException; 31import android.content.res.Resources; 32import android.net.ConnectivityManager; 33import android.net.NetworkInfo; 34import android.net.NetworkInfo.State; 35import android.net.wifi.WifiConfiguration; 36import android.net.wifi.WifiManager; 37import android.net.wifi.WpsInfo; 38import android.nfc.NfcAdapter; 39import android.os.Bundle; 40import android.os.HandlerThread; 41import android.os.Process; 42import android.provider.Settings; 43import android.support.annotation.VisibleForTesting; 44import android.support.v7.preference.Preference; 45import android.support.v7.preference.PreferenceCategory; 46import android.support.v7.preference.PreferenceManager; 47import android.text.TextUtils; 48import android.util.Log; 49import android.view.ContextMenu; 50import android.view.ContextMenu.ContextMenuInfo; 51import android.view.Menu; 52import android.view.MenuItem; 53import android.view.View; 54import android.widget.ProgressBar; 55import android.widget.Toast; 56 57import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 58import com.android.settings.LinkifyUtils; 59import com.android.settings.R; 60import com.android.settings.RestrictedSettingsFragment; 61import com.android.settings.SettingsActivity; 62import com.android.settings.dashboard.SummaryLoader; 63import com.android.settings.location.ScanningSettings; 64import com.android.settings.search.BaseSearchIndexProvider; 65import com.android.settings.search.Indexable; 66import com.android.settings.search.SearchIndexableRaw; 67import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 68import com.android.settings.widget.SwitchBarController; 69import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 70import com.android.settingslib.RestrictedLockUtils; 71import com.android.settingslib.wifi.AccessPoint; 72import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 73import com.android.settingslib.wifi.AccessPointPreference; 74import com.android.settingslib.wifi.WifiTracker; 75import com.android.settingslib.wifi.WifiTrackerFactory; 76 77import java.util.ArrayList; 78import java.util.List; 79 80/** 81 * Two types of UI are provided here. 82 * 83 * The first is for "usual Settings", appearing as any other Setup fragment. 84 * 85 * The second is for Setup Wizard, with a simplified interface that hides the action bar 86 * and menus. 87 */ 88public class WifiSettings extends RestrictedSettingsFragment 89 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 90 WifiDialog.WifiDialogListener { 91 92 private static final String TAG = "WifiSettings"; 93 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 94 95 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 96 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 97 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 98 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 99 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 100 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 101 102 public static final int WIFI_DIALOG_ID = 1; 103 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 104 private static final int WPS_PIN_DIALOG_ID = 3; 105 private static final int WRITE_NFC_DIALOG_ID = 6; 106 107 // Instance state keys 108 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 109 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 110 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 111 112 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 113 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 114 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 115 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 116 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 117 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 118 119 private final Runnable mUpdateAccessPointsRunnable = () -> { 120 updateAccessPointPreferences(); 121 }; 122 private final Runnable mHideProgressBarRunnable = () -> { 123 setProgressBarVisible(false); 124 }; 125 126 protected WifiManager mWifiManager; 127 private WifiManager.ActionListener mConnectListener; 128 private WifiManager.ActionListener mSaveListener; 129 private WifiManager.ActionListener mForgetListener; 130 131 private WifiEnabler mWifiEnabler; 132 // An access point being editted is stored here. 133 private AccessPoint mSelectedAccessPoint; 134 135 private WifiDialog mDialog; 136 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 137 138 private ProgressBar mProgressHeader; 139 140 // this boolean extra specifies whether to disable the Next button when not connected. Used by 141 // account creation outside of setup wizard. 142 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 143 // This string extra specifies a network to open the connect dialog on, so the user can enter 144 // network credentials. This is used by quick settings for secured networks. 145 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 146 147 // should Next button only be enabled when we have a connection? 148 private boolean mEnableNextOnConnection; 149 150 // Save the dialog details 151 private int mDialogMode; 152 private AccessPoint mDlgAccessPoint; 153 private Bundle mAccessPointSavedState; 154 private Bundle mWifiNfcDialogSavedState; 155 156 private WifiTracker mWifiTracker; 157 private String mOpenSsid; 158 159 private HandlerThread mBgThread; 160 161 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 162 163 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 164 private PreferenceCategory mAccessPointsPreferenceCategory; 165 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 166 private Preference mAddPreference; 167 private Preference mConfigureWifiSettingsPreference; 168 private Preference mSavedNetworksPreference; 169 private LinkablePreference mStatusMessagePreference; 170 171 // For Search 172 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 173 174 /* End of "used in Wifi Setup context" */ 175 176 public WifiSettings() { 177 super(DISALLOW_CONFIG_WIFI); 178 } 179 180 @Override 181 public void onViewCreated(View view, Bundle savedInstanceState) { 182 super.onViewCreated(view, savedInstanceState); 183 final Activity activity = getActivity(); 184 if (activity != null) { 185 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 186 setProgressBarVisible(false); 187 } 188 } 189 190 @Override 191 public void onCreate(Bundle icicle) { 192 super.onCreate(icicle); 193 194 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 195 // loaded (ODR). 196 setAnimationAllowed(false); 197 198 addPreferencesFromResource(R.xml.wifi_settings); 199 200 mConnectedAccessPointPreferenceCategory = 201 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 202 mAccessPointsPreferenceCategory = 203 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 204 mAdditionalSettingsPreferenceCategory = 205 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 206 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 207 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 208 209 Context prefContext = getPrefContext(); 210 mAddPreference = new Preference(prefContext); 211 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 212 mAddPreference.setTitle(R.string.wifi_add_network); 213 mStatusMessagePreference = new LinkablePreference(prefContext); 214 215 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 216 217 if (isUiRestricted()) { 218 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 219 addMessagePreference(R.string.wifi_empty_list_user_restricted); 220 } 221 222 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 223 mBgThread.start(); 224 } 225 226 @Override 227 public void onDestroy() { 228 mBgThread.quit(); 229 super.onDestroy(); 230 } 231 232 @Override 233 public void onActivityCreated(Bundle savedInstanceState) { 234 super.onActivityCreated(savedInstanceState); 235 236 mWifiTracker = WifiTrackerFactory.create( 237 getActivity(), this, mBgThread.getLooper(), true, true, false); 238 mWifiManager = mWifiTracker.getManager(); 239 240 mConnectListener = new WifiManager.ActionListener() { 241 @Override 242 public void onSuccess() { 243 } 244 @Override 245 public void onFailure(int reason) { 246 Activity activity = getActivity(); 247 if (activity != null) { 248 Toast.makeText(activity, 249 R.string.wifi_failed_connect_message, 250 Toast.LENGTH_SHORT).show(); 251 } 252 } 253 }; 254 255 mSaveListener = new WifiManager.ActionListener() { 256 @Override 257 public void onSuccess() { 258 } 259 @Override 260 public void onFailure(int reason) { 261 Activity activity = getActivity(); 262 if (activity != null) { 263 Toast.makeText(activity, 264 R.string.wifi_failed_save_message, 265 Toast.LENGTH_SHORT).show(); 266 } 267 } 268 }; 269 270 mForgetListener = new WifiManager.ActionListener() { 271 @Override 272 public void onSuccess() { 273 } 274 @Override 275 public void onFailure(int reason) { 276 Activity activity = getActivity(); 277 if (activity != null) { 278 Toast.makeText(activity, 279 R.string.wifi_failed_forget_message, 280 Toast.LENGTH_SHORT).show(); 281 } 282 } 283 }; 284 285 if (savedInstanceState != null) { 286 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 287 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 288 mAccessPointSavedState = 289 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 290 } 291 292 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 293 mWifiNfcDialogSavedState = 294 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 295 } 296 } 297 298 // if we're supposed to enable/disable the Next button based on our current connection 299 // state, start it off in the right state 300 Intent intent = getActivity().getIntent(); 301 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 302 303 if (mEnableNextOnConnection) { 304 if (hasNextButton()) { 305 final ConnectivityManager connectivity = (ConnectivityManager) 306 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 307 if (connectivity != null) { 308 NetworkInfo info = connectivity.getNetworkInfo( 309 ConnectivityManager.TYPE_WIFI); 310 changeNextButtonState(info.isConnected()); 311 } 312 } 313 } 314 315 registerForContextMenu(getListView()); 316 setHasOptionsMenu(true); 317 318 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 319 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 320 updateAccessPointsDelayed(); 321 } 322 } 323 324 @Override 325 public void onDestroyView() { 326 super.onDestroyView(); 327 328 if (mWifiEnabler != null) { 329 mWifiEnabler.teardownSwitchController(); 330 } 331 } 332 333 @Override 334 public void onStart() { 335 super.onStart(); 336 337 // On/off switch is hidden for Setup Wizard (returns null) 338 mWifiEnabler = createWifiEnabler(); 339 340 mWifiTracker.startTracking(); 341 342 if (!isUiRestricted() && mWifiManager.isWifiEnabled()) { 343 setProgressBarVisible(true); 344 mWifiTracker.forceUpdate(); 345 if (DEBUG) Log.d(TAG, "WifiSettings onStart APs: " + mWifiTracker.getAccessPoints()); 346 347 getView().removeCallbacks(mUpdateAccessPointsRunnable); 348 updateAccessPointPreferences(); 349 } 350 } 351 352 /** 353 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 354 */ 355 private WifiEnabler createWifiEnabler() { 356 final SettingsActivity activity = (SettingsActivity) getActivity(); 357 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 358 mMetricsFeatureProvider); 359 } 360 361 @Override 362 public void onResume() { 363 final Activity activity = getActivity(); 364 super.onResume(); 365 if (mWifiEnabler != null) { 366 mWifiEnabler.resume(activity); 367 } 368 } 369 370 @Override 371 public void onPause() { 372 super.onPause(); 373 if (mWifiEnabler != null) { 374 mWifiEnabler.pause(); 375 } 376 } 377 378 @Override 379 public void onStop() { 380 mWifiTracker.stopTracking(); 381 getView().removeCallbacks(mUpdateAccessPointsRunnable); 382 getView().removeCallbacks(mHideProgressBarRunnable); 383 super.onStop(); 384 } 385 386 @Override 387 public int getMetricsCategory() { 388 return MetricsEvent.WIFI; 389 } 390 391 @Override 392 public void onSaveInstanceState(Bundle outState) { 393 super.onSaveInstanceState(outState); 394 395 // If the dialog is showing, save its state. 396 if (mDialog != null && mDialog.isShowing()) { 397 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 398 if (mDlgAccessPoint != null) { 399 mAccessPointSavedState = new Bundle(); 400 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 401 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 402 } 403 } 404 405 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 406 Bundle savedState = new Bundle(); 407 mWifiToNfcDialog.saveState(savedState); 408 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 409 } 410 } 411 412 @Override 413 public boolean onOptionsItemSelected(MenuItem item) { 414 // If the user is not allowed to configure wifi, do not handle menu selections. 415 if (isUiRestricted()) return false; 416 417 switch (item.getItemId()) { 418 case MENU_ID_WPS_PBC: 419 showDialog(WPS_PBC_DIALOG_ID); 420 return true; 421 /* 422 case MENU_ID_P2P: 423 if (getActivity() instanceof SettingsActivity) { 424 ((SettingsActivity) getActivity()).startPreferencePanel( 425 WifiP2pSettings.class.getCanonicalName(), 426 null, 427 R.string.wifi_p2p_settings_title, null, 428 this, 0); 429 } else { 430 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 431 R.string.wifi_p2p_settings_title, -1, null); 432 } 433 return true; 434 */ 435 case MENU_ID_WPS_PIN: 436 showDialog(WPS_PIN_DIALOG_ID); 437 return true; 438 } 439 return super.onOptionsItemSelected(item); 440 } 441 442 @Override 443 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 444 Preference preference = (Preference) view.getTag(); 445 446 if (preference instanceof LongPressAccessPointPreference) { 447 mSelectedAccessPoint = 448 ((LongPressAccessPointPreference) preference).getAccessPoint(); 449 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 450 if (mSelectedAccessPoint.isConnectable()) { 451 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 452 } 453 454 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 455 // Some configs are ineditable 456 if (isEditabilityLockedDown(getActivity(), config)) { 457 return; 458 } 459 460 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 461 // Allow forgetting a network if either the network is saved or ephemerally 462 // connected. (In the latter case, "forget" blacklists the network so it won't 463 // be used again, ephemerally). 464 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 465 } 466 if (mSelectedAccessPoint.isSaved()) { 467 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 468 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 469 if (nfcAdapter != null && nfcAdapter.isEnabled() && 470 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 471 // Only allow writing of NFC tags for password-protected networks. 472 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 473 } 474 } 475 } 476 } 477 478 @Override 479 public boolean onContextItemSelected(MenuItem item) { 480 if (mSelectedAccessPoint == null) { 481 return super.onContextItemSelected(item); 482 } 483 switch (item.getItemId()) { 484 case MENU_ID_CONNECT: { 485 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 486 if (isSavedNetwork) { 487 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 488 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 489 /** Bypass dialog for unsecured networks */ 490 mSelectedAccessPoint.generateOpenNetworkConfig(); 491 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 492 } else { 493 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 494 } 495 return true; 496 } 497 case MENU_ID_FORGET: { 498 forget(); 499 return true; 500 } 501 case MENU_ID_MODIFY: { 502 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 503 return true; 504 } 505 case MENU_ID_WRITE_NFC: 506 showDialog(WRITE_NFC_DIALOG_ID); 507 return true; 508 509 } 510 return super.onContextItemSelected(item); 511 } 512 513 @Override 514 public boolean onPreferenceTreeClick(Preference preference) { 515 // If the preference has a fragment set, open that 516 if (preference.getFragment() != null) { 517 preference.setOnPreferenceClickListener(null); 518 return super.onPreferenceTreeClick(preference); 519 } 520 521 if (preference instanceof LongPressAccessPointPreference) { 522 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 523 if (mSelectedAccessPoint == null) { 524 return false; 525 } 526 if (mSelectedAccessPoint.isActive()) { 527 return super.onPreferenceTreeClick(preference); 528 } 529 /** 530 * Bypass dialog and connect to unsecured networks, or previously connected saved 531 * networks, or Passpoint provided networks. 532 */ 533 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 534 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 535 mSelectedAccessPoint.generateOpenNetworkConfig(); 536 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 537 } else if (mSelectedAccessPoint.isSaved() && config != null 538 && config.getNetworkSelectionStatus() != null 539 && config.getNetworkSelectionStatus().getHasEverConnected()) { 540 connect(config, true /* isSavedNetwork */); 541 } else if (mSelectedAccessPoint.isPasspoint()) { 542 // Access point provided by an installed Passpoint provider, connect using 543 // the associated config. 544 connect(config, true /* isSavedNetwork */); 545 } else { 546 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 547 } 548 } else if (preference == mAddPreference) { 549 onAddNetworkPressed(); 550 } else { 551 return super.onPreferenceTreeClick(preference); 552 } 553 return true; 554 } 555 556 private void showDialog(AccessPoint accessPoint, int dialogMode) { 557 if (accessPoint != null) { 558 WifiConfiguration config = accessPoint.getConfig(); 559 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 560 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 561 RestrictedLockUtils.getDeviceOwner(getActivity())); 562 return; 563 } 564 } 565 566 if (mDialog != null) { 567 removeDialog(WIFI_DIALOG_ID); 568 mDialog = null; 569 } 570 571 // Save the access point and edit mode 572 mDlgAccessPoint = accessPoint; 573 mDialogMode = dialogMode; 574 575 showDialog(WIFI_DIALOG_ID); 576 } 577 578 @Override 579 public Dialog onCreateDialog(int dialogId) { 580 switch (dialogId) { 581 case WIFI_DIALOG_ID: 582 AccessPoint ap = mDlgAccessPoint; // For manual launch 583 if (ap == null) { // For re-launch from saved state 584 if (mAccessPointSavedState != null) { 585 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 586 // For repeated orientation changes 587 mDlgAccessPoint = ap; 588 // Reset the saved access point data 589 mAccessPointSavedState = null; 590 } 591 } 592 // If it's null, fine, it's for Add Network 593 mSelectedAccessPoint = ap; 594 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 595 /* no hide submit/connect */ false); 596 return mDialog; 597 case WPS_PBC_DIALOG_ID: 598 return new WpsDialog(getActivity(), WpsInfo.PBC); 599 case WPS_PIN_DIALOG_ID: 600 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 601 case WRITE_NFC_DIALOG_ID: 602 if (mSelectedAccessPoint != null) { 603 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 604 getActivity(), 605 mSelectedAccessPoint.getSecurity(), 606 new WifiManagerWrapper(mWifiManager)); 607 } else if (mWifiNfcDialogSavedState != null) { 608 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 609 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 610 } 611 612 return mWifiToNfcDialog; 613 } 614 return super.onCreateDialog(dialogId); 615 } 616 617 @Override 618 public int getDialogMetricsCategory(int dialogId) { 619 switch (dialogId) { 620 case WIFI_DIALOG_ID: 621 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 622 case WPS_PBC_DIALOG_ID: 623 return MetricsEvent.DIALOG_WIFI_PBC; 624 case WPS_PIN_DIALOG_ID: 625 return MetricsEvent.DIALOG_WIFI_PIN; 626 case WRITE_NFC_DIALOG_ID: 627 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 628 default: 629 return 0; 630 } 631 } 632 633 /** 634 * Called to indicate the list of AccessPoints has been updated and 635 * getAccessPoints should be called to get the latest information. 636 */ 637 @Override 638 public void onAccessPointsChanged() { 639 updateAccessPointsDelayed(); 640 } 641 642 /** 643 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 644 * progress bar displayed before starting to modify APs. 645 */ 646 private void updateAccessPointsDelayed() { 647 // Safeguard from some delayed event handling 648 if (getActivity() != null && !isUiRestricted() && mWifiManager.isWifiEnabled()) { 649 setProgressBarVisible(true); 650 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 651 } 652 } 653 654 /** Called when the state of Wifi has changed. */ 655 @Override 656 public void onWifiStateChanged(int state) { 657 if (isUiRestricted()) { 658 return; 659 } 660 661 final int wifiState = mWifiManager.getWifiState(); 662 switch (wifiState) { 663 case WifiManager.WIFI_STATE_ENABLED: 664 updateAccessPointsDelayed(); 665 break; 666 667 case WifiManager.WIFI_STATE_ENABLING: 668 removeConnectedAccessPointPreference(); 669 mAccessPointsPreferenceCategory.removeAll(); 670 addMessagePreference(R.string.wifi_starting); 671 setProgressBarVisible(true); 672 break; 673 674 case WifiManager.WIFI_STATE_DISABLING: 675 removeConnectedAccessPointPreference(); 676 mAccessPointsPreferenceCategory.removeAll(); 677 addMessagePreference(R.string.wifi_stopping); 678 break; 679 680 case WifiManager.WIFI_STATE_DISABLED: 681 setOffMessage(); 682 setProgressBarVisible(false); 683 break; 684 } 685 } 686 687 /** 688 * Called when the connection state of wifi has changed and isConnected 689 * should be called to get the updated state. 690 */ 691 @Override 692 public void onConnectedChanged() { 693 updateAccessPointsDelayed(); 694 changeNextButtonState(mWifiTracker.isConnected()); 695 } 696 697 698 private void updateAccessPointPreferences() { 699 // in case state has changed 700 if (!mWifiManager.isWifiEnabled()) { 701 return; 702 } 703 // AccessPoints are sorted by the WifiTracker 704 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 705 706 boolean hasAvailableAccessPoints = false; 707 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 708 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 709 710 int index = 711 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 712 int numAccessPoints = accessPoints.size(); 713 for (; index < numAccessPoints; index++) { 714 AccessPoint accessPoint = accessPoints.get(index); 715 // Ignore access points that are out of range. 716 if (accessPoint.isReachable()) { 717 String key = accessPoint.getBssid(); 718 if (TextUtils.isEmpty(key)) { 719 key = accessPoint.getSsidStr(); 720 } 721 hasAvailableAccessPoints = true; 722 LongPressAccessPointPreference pref = 723 (LongPressAccessPointPreference) getCachedPreference(key); 724 if (pref != null) { 725 pref.setOrder(index); 726 continue; 727 } 728 LongPressAccessPointPreference preference = 729 createLongPressActionPointPreference(accessPoint); 730 preference.setKey(key); 731 preference.setOrder(index); 732 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 733 && !accessPoint.isSaved() 734 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 735 onPreferenceTreeClick(preference); 736 mOpenSsid = null; 737 } 738 mAccessPointsPreferenceCategory.addPreference(preference); 739 accessPoint.setListener(WifiSettings.this); 740 preference.refresh(); 741 } 742 } 743 removeCachedPrefs(mAccessPointsPreferenceCategory); 744 mAddPreference.setOrder(index); 745 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 746 setAdditionalSettingsSummaries(); 747 748 if (!hasAvailableAccessPoints) { 749 setProgressBarVisible(true); 750 Preference pref = new Preference(getPrefContext()); 751 pref.setSelectable(false); 752 pref.setSummary(R.string.wifi_empty_list_wifi_on); 753 pref.setOrder(index++); 754 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 755 mAccessPointsPreferenceCategory.addPreference(pref); 756 } else { 757 // Continuing showing progress bar for an additional delay to overlap with animation 758 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 759 } 760 } 761 762 @NonNull 763 private LongPressAccessPointPreference createLongPressActionPointPreference( 764 AccessPoint accessPoint) { 765 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 766 false, R.drawable.ic_wifi_signal_0, this); 767 } 768 769 /** 770 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 771 * shown. 772 */ 773 private boolean configureConnectedAccessPointPreferenceCategory( 774 List<AccessPoint> accessPoints) { 775 if (accessPoints.size() == 0) { 776 removeConnectedAccessPointPreference(); 777 return false; 778 } 779 780 AccessPoint connectedAp = accessPoints.get(0); 781 if (!connectedAp.isActive()) { 782 removeConnectedAccessPointPreference(); 783 return false; 784 } 785 786 // Is the preference category empty? 787 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 788 addConnectedAccessPointPreference(connectedAp); 789 return true; 790 } 791 792 // Is the previous currently connected SSID different from the new one? 793 if (!((AccessPointPreference) 794 mConnectedAccessPointPreferenceCategory.getPreference(0)) 795 .getAccessPoint().getSsidStr().equals( 796 connectedAp.getSsidStr())) { 797 removeConnectedAccessPointPreference(); 798 addConnectedAccessPointPreference(connectedAp); 799 return true; 800 } 801 802 // Else same AP is connected, simply refresh the connected access point preference 803 // (first and only access point in this category). 804 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 805 .refresh(); 806 return true; 807 } 808 809 /** 810 * Creates a Preference for the given {@link AccessPoint} and adds it to the 811 * {@link #mConnectedAccessPointPreferenceCategory}. 812 */ 813 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 814 String key = connectedAp.getBssid(); 815 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 816 getCachedPreference(key); 817 if (pref == null) { 818 pref = createLongPressActionPointPreference(connectedAp); 819 } 820 821 // Save the state of the current access point in the bundle so that we can restore it 822 // in the Wifi Network Details Fragment 823 pref.getAccessPoint().saveWifiState(pref.getExtras()); 824 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 825 pref.refresh(); 826 827 mConnectedAccessPointPreferenceCategory.addPreference(pref); 828 mConnectedAccessPointPreferenceCategory.setVisible(true); 829 } 830 831 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 832 private void removeConnectedAccessPointPreference() { 833 mConnectedAccessPointPreferenceCategory.removeAll(); 834 mConnectedAccessPointPreferenceCategory.setVisible(false); 835 } 836 837 private void setAdditionalSettingsSummaries() { 838 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 839 boolean wifiWakeupEnabled = Settings.Global.getInt( 840 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 841 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 842 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 843 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 844 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 845 if (numSavedNetworks > 0) { 846 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 847 mSavedNetworksPreference.setSummary( 848 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 849 numSavedNetworks, numSavedNetworks)); 850 } else { 851 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 852 } 853 } 854 855 private void setOffMessage() { 856 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 857 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 858 // read the system settings directly. Because when the device is in Airplane mode, even if 859 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 860 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 861 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 862 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 863 : getText(R.string.wifi_scan_notify_text_scanning_off); 864 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 865 @Override 866 public void onClick() { 867 final SettingsActivity activity = (SettingsActivity) getActivity(); 868 activity.startPreferencePanel(WifiSettings.this, 869 ScanningSettings.class.getName(), 870 null, R.string.location_scanning_screen_title, null, null, 0); 871 } 872 }; 873 mStatusMessagePreference.setText(title, description, clickListener); 874 removeConnectedAccessPointPreference(); 875 mAccessPointsPreferenceCategory.removeAll(); 876 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 877 } 878 879 private void addMessagePreference(int messageId) { 880 mStatusMessagePreference.setTitle(messageId); 881 removeConnectedAccessPointPreference(); 882 mAccessPointsPreferenceCategory.removeAll(); 883 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 884 } 885 886 protected void setProgressBarVisible(boolean visible) { 887 if (mProgressHeader != null) { 888 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 889 } 890 } 891 892 /** 893 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 894 * Wifi setup screens, not in usual wifi settings screen. 895 * 896 * @param enabled true when the device is connected to a wifi network. 897 */ 898 private void changeNextButtonState(boolean enabled) { 899 if (mEnableNextOnConnection && hasNextButton()) { 900 getNextButton().setEnabled(enabled); 901 } 902 } 903 904 @Override 905 public void onForget(WifiDialog dialog) { 906 forget(); 907 } 908 909 @Override 910 public void onSubmit(WifiDialog dialog) { 911 if (mDialog != null) { 912 submit(mDialog.getController()); 913 } 914 } 915 916 /* package */ void submit(WifiConfigController configController) { 917 918 final WifiConfiguration config = configController.getConfig(); 919 920 if (config == null) { 921 if (mSelectedAccessPoint != null 922 && mSelectedAccessPoint.isSaved()) { 923 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 924 } 925 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 926 mWifiManager.save(config, mSaveListener); 927 } else { 928 mWifiManager.save(config, mSaveListener); 929 if (mSelectedAccessPoint != null) { // Not an "Add network" 930 connect(config, false /* isSavedNetwork */); 931 } 932 } 933 934 mWifiTracker.resumeScanning(); 935 } 936 937 /* package */ void forget() { 938 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 939 if (!mSelectedAccessPoint.isSaved()) { 940 if (mSelectedAccessPoint.getNetworkInfo() != null && 941 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 942 // Network is active but has no network ID - must be ephemeral. 943 mWifiManager.disableEphemeralNetwork( 944 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 945 } else { 946 // Should not happen, but a monkey seems to trigger it 947 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 948 return; 949 } 950 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 951 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 952 } else { 953 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 954 } 955 956 mWifiTracker.resumeScanning(); 957 958 // We need to rename/replace "Next" button in wifi setup context. 959 changeNextButtonState(false); 960 } 961 962 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 963 // Log subtype if configuration is a saved network. 964 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 965 isSavedNetwork); 966 mWifiManager.connect(config, mConnectListener); 967 } 968 969 protected void connect(final int networkId, boolean isSavedNetwork) { 970 // Log subtype if configuration is a saved network. 971 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 972 isSavedNetwork); 973 mWifiManager.connect(networkId, mConnectListener); 974 } 975 976 /** 977 * Called when "add network" button is pressed. 978 */ 979 /* package */ void onAddNetworkPressed() { 980 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 981 // No exact access point is selected. 982 mSelectedAccessPoint = null; 983 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 984 } 985 986 @Override 987 protected int getHelpResource() { 988 return R.string.help_url_wifi; 989 } 990 991 @Override 992 public void onAccessPointChanged(final AccessPoint accessPoint) { 993 View view = getView(); 994 if (view != null) { 995 view.post(new Runnable() { 996 @Override 997 public void run() { 998 Object tag = accessPoint.getTag(); 999 if (tag != null) { 1000 ((LongPressAccessPointPreference) tag).refresh(); 1001 } 1002 } 1003 }); 1004 } 1005 } 1006 1007 @Override 1008 public void onLevelChanged(AccessPoint accessPoint) { 1009 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1010 } 1011 1012 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1013 new BaseSearchIndexProvider() { 1014 @Override 1015 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1016 final List<SearchIndexableRaw> result = new ArrayList<>(); 1017 final Resources res = context.getResources(); 1018 1019 // Add fragment title 1020 SearchIndexableRaw data = new SearchIndexableRaw(context); 1021 data.title = res.getString(R.string.wifi_settings); 1022 data.screenTitle = res.getString(R.string.wifi_settings); 1023 data.keywords = res.getString(R.string.keywords_wifi); 1024 data.key = DATA_KEY_REFERENCE; 1025 result.add(data); 1026 1027 // Add saved Wi-Fi access points 1028 final List<AccessPoint> accessPoints = 1029 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1030 for (AccessPoint accessPoint : accessPoints) { 1031 data = new SearchIndexableRaw(context); 1032 data.title = accessPoint.getSsidStr(); 1033 data.screenTitle = res.getString(R.string.wifi_settings); 1034 data.enabled = enabled; 1035 result.add(data); 1036 } 1037 1038 return result; 1039 } 1040 }; 1041 1042 /** 1043 * Returns true if the config is not editable through Settings. 1044 * @param context Context of caller 1045 * @param config The WiFi config. 1046 * @return true if the config is not editable through Settings. 1047 */ 1048 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1049 return !canModifyNetwork(context, config); 1050 } 1051 1052 /** 1053 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1054 * TODO: refactor to have only one method. 1055 * @param context Context of caller 1056 * @param config The WiFi config. 1057 * @return true if Settings can modify the config. 1058 */ 1059 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1060 if (config == null) { 1061 return true; 1062 } 1063 1064 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1065 Context.DEVICE_POLICY_SERVICE); 1066 1067 // Check if device has DPM capability. If it has and dpm is still null, then we 1068 // treat this case with suspicion and bail out. 1069 final PackageManager pm = context.getPackageManager(); 1070 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1071 return false; 1072 } 1073 1074 boolean isConfigEligibleForLockdown = false; 1075 if (dpm != null) { 1076 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1077 if (deviceOwner != null) { 1078 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1079 try { 1080 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1081 deviceOwnerUserId); 1082 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1083 } catch (NameNotFoundException e) { 1084 // don't care 1085 } 1086 } 1087 } 1088 if (!isConfigEligibleForLockdown) { 1089 return true; 1090 } 1091 1092 final ContentResolver resolver = context.getContentResolver(); 1093 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1094 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1095 return !isLockdownFeatureEnabled; 1096 } 1097 1098 private static class SummaryProvider 1099 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1100 1101 private final Context mContext; 1102 private final SummaryLoader mSummaryLoader; 1103 1104 @VisibleForTesting 1105 WifiSummaryUpdater mSummaryHelper; 1106 1107 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1108 mContext = context; 1109 mSummaryLoader = summaryLoader; 1110 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1111 } 1112 1113 1114 @Override 1115 public void setListening(boolean listening) { 1116 mSummaryHelper.register(listening); 1117 } 1118 1119 @Override 1120 public void onSummaryChanged(String summary) { 1121 mSummaryLoader.setSummary(this, summary); 1122 } 1123 } 1124 1125 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1126 = new SummaryLoader.SummaryProviderFactory() { 1127 @Override 1128 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1129 SummaryLoader summaryLoader) { 1130 return new SummaryProvider(activity, summaryLoader); 1131 } 1132 }; 1133} 1134