WifiSettings.java revision 4ae59dde433751666d8bb10f509a6e13f5eed28f
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.text.TextUtils; 47import android.util.Log; 48import android.view.ContextMenu; 49import android.view.ContextMenu.ContextMenuInfo; 50import android.view.Menu; 51import android.view.MenuItem; 52import android.view.View; 53import android.widget.ProgressBar; 54import android.widget.Toast; 55 56import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 57import com.android.settings.LinkifyUtils; 58import com.android.settings.R; 59import com.android.settings.RestrictedSettingsFragment; 60import com.android.settings.SettingsActivity; 61import com.android.settings.dashboard.SummaryLoader; 62import com.android.settings.location.ScanningSettings; 63import com.android.settings.search.BaseSearchIndexProvider; 64import com.android.settings.search.Indexable; 65import com.android.settings.search.SearchIndexableRaw; 66import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 67import com.android.settings.widget.SwitchBarController; 68import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 69import com.android.settingslib.RestrictedLockUtils; 70import com.android.settingslib.wifi.AccessPoint; 71import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 72import com.android.settingslib.wifi.AccessPointPreference; 73import com.android.settingslib.wifi.WifiTracker; 74import com.android.settingslib.wifi.WifiTrackerFactory; 75 76import java.util.ArrayList; 77import java.util.List; 78 79/** 80 * Two types of UI are provided here. 81 * 82 * The first is for "usual Settings", appearing as any other Setup fragment. 83 * 84 * The second is for Setup Wizard, with a simplified interface that hides the action bar 85 * and menus. 86 */ 87public class WifiSettings extends RestrictedSettingsFragment 88 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 89 WifiDialog.WifiDialogListener { 90 91 private static final String TAG = "WifiSettings"; 92 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 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 /** 131 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 132 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 133 * by the Test DPC tool in AFW mode. 134 */ 135 private boolean mIsRestricted; 136 137 private WifiEnabler mWifiEnabler; 138 // An access point being editted is stored here. 139 private AccessPoint mSelectedAccessPoint; 140 141 private WifiDialog mDialog; 142 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 143 144 private ProgressBar mProgressHeader; 145 146 // this boolean extra specifies whether to disable the Next button when not connected. Used by 147 // account creation outside of setup wizard. 148 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 149 // This string extra specifies a network to open the connect dialog on, so the user can enter 150 // network credentials. This is used by quick settings for secured networks. 151 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 152 153 // should Next button only be enabled when we have a connection? 154 private boolean mEnableNextOnConnection; 155 156 // Save the dialog details 157 private int mDialogMode; 158 private AccessPoint mDlgAccessPoint; 159 private Bundle mAccessPointSavedState; 160 private Bundle mWifiNfcDialogSavedState; 161 162 private WifiTracker mWifiTracker; 163 private String mOpenSsid; 164 165 private HandlerThread mBgThread; 166 167 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 168 169 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 170 private PreferenceCategory mAccessPointsPreferenceCategory; 171 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 172 private Preference mAddPreference; 173 private Preference mConfigureWifiSettingsPreference; 174 private Preference mSavedNetworksPreference; 175 private LinkablePreference mStatusMessagePreference; 176 177 // For Search 178 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 179 180 /* End of "used in Wifi Setup context" */ 181 182 public WifiSettings() { 183 super(DISALLOW_CONFIG_WIFI); 184 } 185 186 @Override 187 public void onViewCreated(View view, Bundle savedInstanceState) { 188 super.onViewCreated(view, savedInstanceState); 189 final Activity activity = getActivity(); 190 if (activity != null) { 191 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 192 setProgressBarVisible(false); 193 } 194 } 195 196 @Override 197 public void onCreate(Bundle icicle) { 198 super.onCreate(icicle); 199 200 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 201 // loaded (ODR). 202 setAnimationAllowed(false); 203 204 addPreferencesFromResource(R.xml.wifi_settings); 205 206 mConnectedAccessPointPreferenceCategory = 207 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 208 mAccessPointsPreferenceCategory = 209 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 210 mAdditionalSettingsPreferenceCategory = 211 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 212 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 213 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 214 215 Context prefContext = getPrefContext(); 216 mAddPreference = new Preference(prefContext); 217 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 218 mAddPreference.setTitle(R.string.wifi_add_network); 219 mStatusMessagePreference = new LinkablePreference(prefContext); 220 221 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 222 223 mIsRestricted = isUiRestricted(); 224 225 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 226 mBgThread.start(); 227 } 228 229 @Override 230 public void onDestroy() { 231 mBgThread.quit(); 232 super.onDestroy(); 233 } 234 235 @Override 236 public void onActivityCreated(Bundle savedInstanceState) { 237 super.onActivityCreated(savedInstanceState); 238 239 mWifiTracker = WifiTrackerFactory.create( 240 getActivity(), this, mBgThread.getLooper(), true, true, false); 241 mWifiManager = mWifiTracker.getManager(); 242 243 mConnectListener = new WifiManager.ActionListener() { 244 @Override 245 public void onSuccess() { 246 } 247 @Override 248 public void onFailure(int reason) { 249 Activity activity = getActivity(); 250 if (activity != null) { 251 Toast.makeText(activity, 252 R.string.wifi_failed_connect_message, 253 Toast.LENGTH_SHORT).show(); 254 } 255 } 256 }; 257 258 mSaveListener = new WifiManager.ActionListener() { 259 @Override 260 public void onSuccess() { 261 } 262 @Override 263 public void onFailure(int reason) { 264 Activity activity = getActivity(); 265 if (activity != null) { 266 Toast.makeText(activity, 267 R.string.wifi_failed_save_message, 268 Toast.LENGTH_SHORT).show(); 269 } 270 } 271 }; 272 273 mForgetListener = new WifiManager.ActionListener() { 274 @Override 275 public void onSuccess() { 276 } 277 @Override 278 public void onFailure(int reason) { 279 Activity activity = getActivity(); 280 if (activity != null) { 281 Toast.makeText(activity, 282 R.string.wifi_failed_forget_message, 283 Toast.LENGTH_SHORT).show(); 284 } 285 } 286 }; 287 288 if (savedInstanceState != null) { 289 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 290 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 291 mAccessPointSavedState = 292 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 293 } 294 295 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 296 mWifiNfcDialogSavedState = 297 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 298 } 299 } 300 301 // if we're supposed to enable/disable the Next button based on our current connection 302 // state, start it off in the right state 303 Intent intent = getActivity().getIntent(); 304 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 305 306 if (mEnableNextOnConnection) { 307 if (hasNextButton()) { 308 final ConnectivityManager connectivity = (ConnectivityManager) 309 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 310 if (connectivity != null) { 311 NetworkInfo info = connectivity.getNetworkInfo( 312 ConnectivityManager.TYPE_WIFI); 313 changeNextButtonState(info.isConnected()); 314 } 315 } 316 } 317 318 registerForContextMenu(getListView()); 319 setHasOptionsMenu(true); 320 321 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 322 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 323 } 324 } 325 326 @Override 327 public void onDestroyView() { 328 super.onDestroyView(); 329 330 if (mWifiEnabler != null) { 331 mWifiEnabler.teardownSwitchController(); 332 } 333 } 334 335 @Override 336 public void onStart() { 337 super.onStart(); 338 339 // On/off switch is hidden for Setup Wizard (returns null) 340 mWifiEnabler = createWifiEnabler(); 341 342 mWifiTracker.startTracking(); 343 344 if (mIsRestricted) { 345 if (!isUiRestrictedByOnlyAdmin()) { 346 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 347 } 348 getPreferenceScreen().removeAll(); 349 return; 350 } 351 352 onWifiStateChanged(mWifiManager.getWifiState()); 353 } 354 355 /** 356 * Only update the AP list if there are not any APs currently shown. 357 * 358 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 359 * and off. In other use cases, the previous APs will remain until the next update is received 360 * from {@link WifiTracker}. 361 */ 362 private void conditionallyForceUpdateAPs() { 363 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 364 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 365 AccessPointPreference) { 366 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 367 // WifiTracker. 368 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 369 getView().removeCallbacks(mUpdateAccessPointsRunnable); 370 return; 371 } 372 setProgressBarVisible(true); 373 mWifiTracker.forceUpdate(); 374 if (DEBUG) { 375 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 376 } 377 getView().removeCallbacks(mUpdateAccessPointsRunnable); 378 updateAccessPointPreferences(); 379 } 380 381 /** 382 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 383 */ 384 private WifiEnabler createWifiEnabler() { 385 final SettingsActivity activity = (SettingsActivity) getActivity(); 386 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 387 mMetricsFeatureProvider); 388 } 389 390 @Override 391 public void onResume() { 392 final Activity activity = getActivity(); 393 super.onResume(); 394 if (mWifiEnabler != null) { 395 mWifiEnabler.resume(activity); 396 } 397 } 398 399 @Override 400 public void onPause() { 401 super.onPause(); 402 if (mWifiEnabler != null) { 403 mWifiEnabler.pause(); 404 } 405 } 406 407 @Override 408 public void onStop() { 409 mWifiTracker.stopTracking(); 410 getView().removeCallbacks(mUpdateAccessPointsRunnable); 411 getView().removeCallbacks(mHideProgressBarRunnable); 412 super.onStop(); 413 } 414 415 @Override 416 public int getMetricsCategory() { 417 return MetricsEvent.WIFI; 418 } 419 420 @Override 421 public void onSaveInstanceState(Bundle outState) { 422 super.onSaveInstanceState(outState); 423 424 // If the dialog is showing, save its state. 425 if (mDialog != null && mDialog.isShowing()) { 426 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 427 if (mDlgAccessPoint != null) { 428 mAccessPointSavedState = new Bundle(); 429 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 430 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 431 } 432 } 433 434 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 435 Bundle savedState = new Bundle(); 436 mWifiToNfcDialog.saveState(savedState); 437 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 438 } 439 } 440 441 @Override 442 public boolean onOptionsItemSelected(MenuItem item) { 443 // If the user is not allowed to configure wifi, do not handle menu selections. 444 if (mIsRestricted) { 445 return false; 446 } 447 448 switch (item.getItemId()) { 449 case MENU_ID_WPS_PBC: 450 showDialog(WPS_PBC_DIALOG_ID); 451 return true; 452 /* 453 case MENU_ID_P2P: 454 if (getActivity() instanceof SettingsActivity) { 455 ((SettingsActivity) getActivity()).startPreferencePanel( 456 WifiP2pSettings.class.getCanonicalName(), 457 null, 458 R.string.wifi_p2p_settings_title, null, 459 this, 0); 460 } else { 461 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 462 R.string.wifi_p2p_settings_title, -1, null); 463 } 464 return true; 465 */ 466 case MENU_ID_WPS_PIN: 467 showDialog(WPS_PIN_DIALOG_ID); 468 return true; 469 } 470 return super.onOptionsItemSelected(item); 471 } 472 473 @Override 474 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 475 Preference preference = (Preference) view.getTag(); 476 477 if (preference instanceof LongPressAccessPointPreference) { 478 mSelectedAccessPoint = 479 ((LongPressAccessPointPreference) preference).getAccessPoint(); 480 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 481 if (mSelectedAccessPoint.isConnectable()) { 482 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 483 } 484 485 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 486 // Some configs are ineditable 487 if (isEditabilityLockedDown(getActivity(), config)) { 488 return; 489 } 490 491 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 492 // Allow forgetting a network if either the network is saved or ephemerally 493 // connected. (In the latter case, "forget" blacklists the network so it won't 494 // be used again, ephemerally). 495 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 496 } 497 if (mSelectedAccessPoint.isSaved()) { 498 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 499 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 500 if (nfcAdapter != null && nfcAdapter.isEnabled() && 501 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 502 // Only allow writing of NFC tags for password-protected networks. 503 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 504 } 505 } 506 } 507 } 508 509 @Override 510 public boolean onContextItemSelected(MenuItem item) { 511 if (mSelectedAccessPoint == null) { 512 return super.onContextItemSelected(item); 513 } 514 switch (item.getItemId()) { 515 case MENU_ID_CONNECT: { 516 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 517 if (isSavedNetwork) { 518 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 519 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 520 /** Bypass dialog for unsecured networks */ 521 mSelectedAccessPoint.generateOpenNetworkConfig(); 522 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 523 } else { 524 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 525 } 526 return true; 527 } 528 case MENU_ID_FORGET: { 529 forget(); 530 return true; 531 } 532 case MENU_ID_MODIFY: { 533 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 534 return true; 535 } 536 case MENU_ID_WRITE_NFC: 537 showDialog(WRITE_NFC_DIALOG_ID); 538 return true; 539 540 } 541 return super.onContextItemSelected(item); 542 } 543 544 @Override 545 public boolean onPreferenceTreeClick(Preference preference) { 546 // If the preference has a fragment set, open that 547 if (preference.getFragment() != null) { 548 preference.setOnPreferenceClickListener(null); 549 return super.onPreferenceTreeClick(preference); 550 } 551 552 if (preference instanceof LongPressAccessPointPreference) { 553 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 554 if (mSelectedAccessPoint == null) { 555 return false; 556 } 557 if (mSelectedAccessPoint.isActive()) { 558 return super.onPreferenceTreeClick(preference); 559 } 560 /** 561 * Bypass dialog and connect to unsecured networks, or previously connected saved 562 * networks, or Passpoint provided networks. 563 */ 564 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 565 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 566 mSelectedAccessPoint.generateOpenNetworkConfig(); 567 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 568 } else if (mSelectedAccessPoint.isSaved() && config != null 569 && config.getNetworkSelectionStatus() != null 570 && config.getNetworkSelectionStatus().getHasEverConnected()) { 571 connect(config, true /* isSavedNetwork */); 572 } else if (mSelectedAccessPoint.isPasspoint()) { 573 // Access point provided by an installed Passpoint provider, connect using 574 // the associated config. 575 connect(config, true /* isSavedNetwork */); 576 } else { 577 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 578 } 579 } else if (preference == mAddPreference) { 580 onAddNetworkPressed(); 581 } else { 582 return super.onPreferenceTreeClick(preference); 583 } 584 return true; 585 } 586 587 private void showDialog(AccessPoint accessPoint, int dialogMode) { 588 if (accessPoint != null) { 589 WifiConfiguration config = accessPoint.getConfig(); 590 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 591 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 592 RestrictedLockUtils.getDeviceOwner(getActivity())); 593 return; 594 } 595 } 596 597 if (mDialog != null) { 598 removeDialog(WIFI_DIALOG_ID); 599 mDialog = null; 600 } 601 602 // Save the access point and edit mode 603 mDlgAccessPoint = accessPoint; 604 mDialogMode = dialogMode; 605 606 showDialog(WIFI_DIALOG_ID); 607 } 608 609 @Override 610 public Dialog onCreateDialog(int dialogId) { 611 switch (dialogId) { 612 case WIFI_DIALOG_ID: 613 AccessPoint ap = mDlgAccessPoint; // For manual launch 614 if (ap == null) { // For re-launch from saved state 615 if (mAccessPointSavedState != null) { 616 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 617 // For repeated orientation changes 618 mDlgAccessPoint = ap; 619 // Reset the saved access point data 620 mAccessPointSavedState = null; 621 } 622 } 623 // If it's null, fine, it's for Add Network 624 mSelectedAccessPoint = ap; 625 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 626 /* no hide submit/connect */ false); 627 return mDialog; 628 case WPS_PBC_DIALOG_ID: 629 return new WpsDialog(getActivity(), WpsInfo.PBC); 630 case WPS_PIN_DIALOG_ID: 631 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 632 case WRITE_NFC_DIALOG_ID: 633 if (mSelectedAccessPoint != null) { 634 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 635 getActivity(), 636 mSelectedAccessPoint.getSecurity(), 637 new WifiManagerWrapper(mWifiManager)); 638 } else if (mWifiNfcDialogSavedState != null) { 639 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 640 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 641 } 642 643 return mWifiToNfcDialog; 644 } 645 return super.onCreateDialog(dialogId); 646 } 647 648 @Override 649 public int getDialogMetricsCategory(int dialogId) { 650 switch (dialogId) { 651 case WIFI_DIALOG_ID: 652 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 653 case WPS_PBC_DIALOG_ID: 654 return MetricsEvent.DIALOG_WIFI_PBC; 655 case WPS_PIN_DIALOG_ID: 656 return MetricsEvent.DIALOG_WIFI_PIN; 657 case WRITE_NFC_DIALOG_ID: 658 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 659 default: 660 return 0; 661 } 662 } 663 664 /** 665 * Called to indicate the list of AccessPoints has been updated and 666 * getAccessPoints should be called to get the latest information. 667 */ 668 @Override 669 public void onAccessPointsChanged() { 670 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 671 updateAccessPointsDelayed(); 672 } 673 674 /** 675 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 676 * progress bar displayed before starting to modify APs. 677 */ 678 private void updateAccessPointsDelayed() { 679 // Safeguard from some delayed event handling 680 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 681 setProgressBarVisible(true); 682 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 683 } 684 } 685 686 /** Called when the state of Wifi has changed. */ 687 @Override 688 public void onWifiStateChanged(int state) { 689 if (mIsRestricted) { 690 return; 691 } 692 693 final int wifiState = mWifiManager.getWifiState(); 694 switch (wifiState) { 695 case WifiManager.WIFI_STATE_ENABLED: 696 conditionallyForceUpdateAPs(); 697 break; 698 699 case WifiManager.WIFI_STATE_ENABLING: 700 removeConnectedAccessPointPreference(); 701 mAccessPointsPreferenceCategory.removeAll(); 702 addMessagePreference(R.string.wifi_starting); 703 setProgressBarVisible(true); 704 break; 705 706 case WifiManager.WIFI_STATE_DISABLING: 707 removeConnectedAccessPointPreference(); 708 mAccessPointsPreferenceCategory.removeAll(); 709 addMessagePreference(R.string.wifi_stopping); 710 break; 711 712 case WifiManager.WIFI_STATE_DISABLED: 713 setOffMessage(); 714 setAdditionalSettingsSummaries(); 715 setProgressBarVisible(false); 716 break; 717 } 718 } 719 720 /** 721 * Called when the connection state of wifi has changed and isConnected 722 * should be called to get the updated state. 723 */ 724 @Override 725 public void onConnectedChanged() { 726 updateAccessPointsDelayed(); 727 changeNextButtonState(mWifiTracker.isConnected()); 728 } 729 730 private void updateAccessPointPreferences() { 731 // in case state has changed 732 if (!mWifiManager.isWifiEnabled()) { 733 return; 734 } 735 // AccessPoints are sorted by the WifiTracker 736 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 737 if (DEBUG) { 738 Log.d(TAG, "updateAccessPoints called for: " + accessPoints); 739 } 740 741 boolean hasAvailableAccessPoints = false; 742 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 743 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 744 745 int index = 746 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 747 int numAccessPoints = accessPoints.size(); 748 for (; index < numAccessPoints; index++) { 749 AccessPoint accessPoint = accessPoints.get(index); 750 // Ignore access points that are out of range. 751 if (accessPoint.isReachable()) { 752 String key = accessPoint.getBssid(); 753 if (TextUtils.isEmpty(key)) { 754 key = accessPoint.getSsidStr(); 755 } 756 hasAvailableAccessPoints = true; 757 LongPressAccessPointPreference pref = 758 (LongPressAccessPointPreference) getCachedPreference(key); 759 if (pref != null) { 760 pref.setOrder(index); 761 continue; 762 } 763 LongPressAccessPointPreference preference = 764 createLongPressActionPointPreference(accessPoint); 765 preference.setKey(key); 766 preference.setOrder(index); 767 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 768 && !accessPoint.isSaved() 769 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 770 onPreferenceTreeClick(preference); 771 mOpenSsid = null; 772 } 773 mAccessPointsPreferenceCategory.addPreference(preference); 774 accessPoint.setListener(WifiSettings.this); 775 preference.refresh(); 776 } 777 } 778 removeCachedPrefs(mAccessPointsPreferenceCategory); 779 mAddPreference.setOrder(index); 780 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 781 setAdditionalSettingsSummaries(); 782 783 if (!hasAvailableAccessPoints) { 784 setProgressBarVisible(true); 785 Preference pref = new Preference(getPrefContext()); 786 pref.setSelectable(false); 787 pref.setSummary(R.string.wifi_empty_list_wifi_on); 788 pref.setOrder(index++); 789 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 790 mAccessPointsPreferenceCategory.addPreference(pref); 791 } else { 792 // Continuing showing progress bar for an additional delay to overlap with animation 793 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 794 } 795 } 796 797 @NonNull 798 private LongPressAccessPointPreference createLongPressActionPointPreference( 799 AccessPoint accessPoint) { 800 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 801 false, R.drawable.ic_wifi_signal_0, this); 802 } 803 804 /** 805 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 806 * shown. 807 */ 808 private boolean configureConnectedAccessPointPreferenceCategory( 809 List<AccessPoint> accessPoints) { 810 if (accessPoints.size() == 0) { 811 removeConnectedAccessPointPreference(); 812 return false; 813 } 814 815 AccessPoint connectedAp = accessPoints.get(0); 816 if (!connectedAp.isActive()) { 817 removeConnectedAccessPointPreference(); 818 return false; 819 } 820 821 // Is the preference category empty? 822 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 823 addConnectedAccessPointPreference(connectedAp); 824 return true; 825 } 826 827 // Is the previous currently connected SSID different from the new one? 828 if (!((AccessPointPreference) 829 mConnectedAccessPointPreferenceCategory.getPreference(0)) 830 .getAccessPoint().getSsidStr().equals( 831 connectedAp.getSsidStr())) { 832 removeConnectedAccessPointPreference(); 833 addConnectedAccessPointPreference(connectedAp); 834 return true; 835 } 836 837 // Else same AP is connected, simply refresh the connected access point preference 838 // (first and only access point in this category). 839 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 840 .refresh(); 841 return true; 842 } 843 844 /** 845 * Creates a Preference for the given {@link AccessPoint} and adds it to the 846 * {@link #mConnectedAccessPointPreferenceCategory}. 847 */ 848 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 849 String key = connectedAp.getBssid(); 850 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 851 getCachedPreference(key); 852 if (pref == null) { 853 pref = createLongPressActionPointPreference(connectedAp); 854 } 855 856 // Save the state of the current access point in the bundle so that we can restore it 857 // in the Wifi Network Details Fragment 858 pref.getAccessPoint().saveWifiState(pref.getExtras()); 859 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 860 pref.refresh(); 861 862 mConnectedAccessPointPreferenceCategory.addPreference(pref); 863 mConnectedAccessPointPreferenceCategory.setVisible(true); 864 } 865 866 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 867 private void removeConnectedAccessPointPreference() { 868 mConnectedAccessPointPreferenceCategory.removeAll(); 869 mConnectedAccessPointPreferenceCategory.setVisible(false); 870 } 871 872 private void setAdditionalSettingsSummaries() { 873 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 874 final int defaultWakeupAvailable = getResources().getInteger( 875 com.android.internal.R.integer.config_wifi_wakeup_available); 876 boolean wifiWakeupAvailable = Settings.Global.getInt( 877 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 878 == 1; 879 if (wifiWakeupAvailable) { 880 boolean wifiWakeupEnabled = Settings.Global.getInt( 881 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 882 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 883 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 884 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 885 } 886 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 887 if (numSavedNetworks > 0) { 888 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 889 mSavedNetworksPreference.setSummary( 890 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 891 numSavedNetworks, numSavedNetworks)); 892 } else { 893 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 894 } 895 } 896 897 private void setOffMessage() { 898 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 899 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 900 // read the system settings directly. Because when the device is in Airplane mode, even if 901 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 902 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 903 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 904 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 905 : getText(R.string.wifi_scan_notify_text_scanning_off); 906 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 907 @Override 908 public void onClick() { 909 final SettingsActivity activity = (SettingsActivity) getActivity(); 910 activity.startPreferencePanel(WifiSettings.this, 911 ScanningSettings.class.getName(), 912 null, R.string.location_scanning_screen_title, null, null, 0); 913 } 914 }; 915 mStatusMessagePreference.setText(title, description, clickListener); 916 removeConnectedAccessPointPreference(); 917 mAccessPointsPreferenceCategory.removeAll(); 918 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 919 } 920 921 private void addMessagePreference(int messageId) { 922 mStatusMessagePreference.setTitle(messageId); 923 removeConnectedAccessPointPreference(); 924 mAccessPointsPreferenceCategory.removeAll(); 925 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 926 } 927 928 protected void setProgressBarVisible(boolean visible) { 929 if (mProgressHeader != null) { 930 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 931 } 932 } 933 934 /** 935 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 936 * Wifi setup screens, not in usual wifi settings screen. 937 * 938 * @param enabled true when the device is connected to a wifi network. 939 */ 940 private void changeNextButtonState(boolean enabled) { 941 if (mEnableNextOnConnection && hasNextButton()) { 942 getNextButton().setEnabled(enabled); 943 } 944 } 945 946 @Override 947 public void onForget(WifiDialog dialog) { 948 forget(); 949 } 950 951 @Override 952 public void onSubmit(WifiDialog dialog) { 953 if (mDialog != null) { 954 submit(mDialog.getController()); 955 } 956 } 957 958 /* package */ void submit(WifiConfigController configController) { 959 960 final WifiConfiguration config = configController.getConfig(); 961 962 if (config == null) { 963 if (mSelectedAccessPoint != null 964 && mSelectedAccessPoint.isSaved()) { 965 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 966 } 967 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 968 mWifiManager.save(config, mSaveListener); 969 } else { 970 mWifiManager.save(config, mSaveListener); 971 if (mSelectedAccessPoint != null) { // Not an "Add network" 972 connect(config, false /* isSavedNetwork */); 973 } 974 } 975 976 mWifiTracker.resumeScanning(); 977 } 978 979 /* package */ void forget() { 980 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 981 if (!mSelectedAccessPoint.isSaved()) { 982 if (mSelectedAccessPoint.getNetworkInfo() != null && 983 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 984 // Network is active but has no network ID - must be ephemeral. 985 mWifiManager.disableEphemeralNetwork( 986 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 987 } else { 988 // Should not happen, but a monkey seems to trigger it 989 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 990 return; 991 } 992 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 993 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 994 } else { 995 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 996 } 997 998 mWifiTracker.resumeScanning(); 999 1000 // We need to rename/replace "Next" button in wifi setup context. 1001 changeNextButtonState(false); 1002 } 1003 1004 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 1005 // Log subtype if configuration is a saved network. 1006 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1007 isSavedNetwork); 1008 mWifiManager.connect(config, mConnectListener); 1009 } 1010 1011 protected void connect(final int networkId, boolean isSavedNetwork) { 1012 // Log subtype if configuration is a saved network. 1013 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1014 isSavedNetwork); 1015 mWifiManager.connect(networkId, mConnectListener); 1016 } 1017 1018 /** 1019 * Called when "add network" button is pressed. 1020 */ 1021 /* package */ void onAddNetworkPressed() { 1022 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1023 // No exact access point is selected. 1024 mSelectedAccessPoint = null; 1025 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1026 } 1027 1028 @Override 1029 protected int getHelpResource() { 1030 return R.string.help_url_wifi; 1031 } 1032 1033 @Override 1034 public void onAccessPointChanged(final AccessPoint accessPoint) { 1035 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1036 View view = getView(); 1037 if (view != null) { 1038 view.post(new Runnable() { 1039 @Override 1040 public void run() { 1041 Object tag = accessPoint.getTag(); 1042 if (tag != null) { 1043 ((LongPressAccessPointPreference) tag).refresh(); 1044 } 1045 } 1046 }); 1047 } 1048 } 1049 1050 @Override 1051 public void onLevelChanged(AccessPoint accessPoint) { 1052 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1053 } 1054 1055 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1056 new BaseSearchIndexProvider() { 1057 @Override 1058 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1059 final List<SearchIndexableRaw> result = new ArrayList<>(); 1060 final Resources res = context.getResources(); 1061 1062 // Add fragment title 1063 SearchIndexableRaw data = new SearchIndexableRaw(context); 1064 data.title = res.getString(R.string.wifi_settings); 1065 data.screenTitle = res.getString(R.string.wifi_settings); 1066 data.keywords = res.getString(R.string.keywords_wifi); 1067 data.key = DATA_KEY_REFERENCE; 1068 result.add(data); 1069 1070 // Add saved Wi-Fi access points 1071 final List<AccessPoint> accessPoints = 1072 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1073 for (AccessPoint accessPoint : accessPoints) { 1074 data = new SearchIndexableRaw(context); 1075 data.title = accessPoint.getSsidStr(); 1076 data.screenTitle = res.getString(R.string.wifi_settings); 1077 data.enabled = enabled; 1078 result.add(data); 1079 } 1080 1081 return result; 1082 } 1083 }; 1084 1085 /** 1086 * Returns true if the config is not editable through Settings. 1087 * @param context Context of caller 1088 * @param config The WiFi config. 1089 * @return true if the config is not editable through Settings. 1090 */ 1091 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1092 return !canModifyNetwork(context, config); 1093 } 1094 1095 /** 1096 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1097 * TODO: refactor to have only one method. 1098 * @param context Context of caller 1099 * @param config The WiFi config. 1100 * @return true if Settings can modify the config. 1101 */ 1102 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1103 if (config == null) { 1104 return true; 1105 } 1106 1107 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1108 Context.DEVICE_POLICY_SERVICE); 1109 1110 // Check if device has DPM capability. If it has and dpm is still null, then we 1111 // treat this case with suspicion and bail out. 1112 final PackageManager pm = context.getPackageManager(); 1113 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1114 return false; 1115 } 1116 1117 boolean isConfigEligibleForLockdown = false; 1118 if (dpm != null) { 1119 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1120 if (deviceOwner != null) { 1121 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1122 try { 1123 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1124 deviceOwnerUserId); 1125 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1126 } catch (NameNotFoundException e) { 1127 // don't care 1128 } 1129 } 1130 } 1131 if (!isConfigEligibleForLockdown) { 1132 return true; 1133 } 1134 1135 final ContentResolver resolver = context.getContentResolver(); 1136 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1137 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1138 return !isLockdownFeatureEnabled; 1139 } 1140 1141 private static class SummaryProvider 1142 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1143 1144 private final Context mContext; 1145 private final SummaryLoader mSummaryLoader; 1146 1147 @VisibleForTesting 1148 WifiSummaryUpdater mSummaryHelper; 1149 1150 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1151 mContext = context; 1152 mSummaryLoader = summaryLoader; 1153 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1154 } 1155 1156 1157 @Override 1158 public void setListening(boolean listening) { 1159 mSummaryHelper.register(listening); 1160 } 1161 1162 @Override 1163 public void onSummaryChanged(String summary) { 1164 mSummaryLoader.setSummary(this, summary); 1165 } 1166 } 1167 1168 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1169 = new SummaryLoader.SummaryProviderFactory() { 1170 @Override 1171 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1172 SummaryLoader summaryLoader) { 1173 return new SummaryProvider(activity, summaryLoader); 1174 } 1175 }; 1176} 1177