WifiSettings.java revision b963c1190f9ec00d1da69e0e3bc8780a9229a1d1
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.util.Log; 47import android.view.ContextMenu; 48import android.view.ContextMenu.ContextMenuInfo; 49import android.view.Menu; 50import android.view.MenuItem; 51import android.view.View; 52import android.widget.ProgressBar; 53import android.widget.Toast; 54 55import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 56import com.android.settings.LinkifyUtils; 57import com.android.settings.R; 58import com.android.settings.RestrictedSettingsFragment; 59import com.android.settings.SettingsActivity; 60import com.android.settings.dashboard.SummaryLoader; 61import com.android.settings.location.ScanningSettings; 62import com.android.settings.search.BaseSearchIndexProvider; 63import com.android.settings.search.Indexable; 64import com.android.settings.search.SearchIndexableRaw; 65import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 66import com.android.settings.widget.SwitchBarController; 67import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 68import com.android.settingslib.RestrictedLockUtils; 69import com.android.settingslib.wifi.AccessPoint; 70import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 71import com.android.settingslib.wifi.AccessPointPreference; 72import com.android.settingslib.wifi.WifiTracker; 73import com.android.settingslib.wifi.WifiTrackerFactory; 74 75import java.util.ArrayList; 76import java.util.List; 77 78/** 79 * Two types of UI are provided here. 80 * 81 * The first is for "usual Settings", appearing as any other Setup fragment. 82 * 83 * The second is for Setup Wizard, with a simplified interface that hides the action bar 84 * and menus. 85 */ 86public class WifiSettings extends RestrictedSettingsFragment 87 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 88 WifiDialog.WifiDialogListener { 89 90 private static final String TAG = "WifiSettings"; 91 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 92 93 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 94 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 95 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 96 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 97 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 98 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 99 100 public static final int WIFI_DIALOG_ID = 1; 101 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 102 private static final int WPS_PIN_DIALOG_ID = 3; 103 private static final int WRITE_NFC_DIALOG_ID = 6; 104 105 // Instance state keys 106 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 107 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 108 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 109 110 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 111 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 112 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 113 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 114 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 115 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 116 117 private final Runnable mUpdateAccessPointsRunnable = () -> { 118 updateAccessPointPreferences(); 119 }; 120 private final Runnable mHideProgressBarRunnable = () -> { 121 setProgressBarVisible(false); 122 }; 123 124 protected WifiManager mWifiManager; 125 private WifiManager.ActionListener mConnectListener; 126 private WifiManager.ActionListener mSaveListener; 127 private WifiManager.ActionListener mForgetListener; 128 129 /** 130 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 131 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 132 * by the Test DPC tool in AFW mode. 133 */ 134 private boolean mIsRestricted; 135 136 private WifiEnabler mWifiEnabler; 137 // An access point being editted is stored here. 138 private AccessPoint mSelectedAccessPoint; 139 140 private WifiDialog mDialog; 141 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 142 143 private ProgressBar mProgressHeader; 144 145 // this boolean extra specifies whether to disable the Next button when not connected. Used by 146 // account creation outside of setup wizard. 147 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 148 // This string extra specifies a network to open the connect dialog on, so the user can enter 149 // network credentials. This is used by quick settings for secured networks. 150 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 151 152 // should Next button only be enabled when we have a connection? 153 private boolean mEnableNextOnConnection; 154 155 // Save the dialog details 156 private int mDialogMode; 157 private AccessPoint mDlgAccessPoint; 158 private Bundle mAccessPointSavedState; 159 private Bundle mWifiNfcDialogSavedState; 160 161 private WifiTracker mWifiTracker; 162 private String mOpenSsid; 163 164 private HandlerThread mBgThread; 165 166 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 167 168 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 169 private PreferenceCategory mAccessPointsPreferenceCategory; 170 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 171 private Preference mAddPreference; 172 private Preference mConfigureWifiSettingsPreference; 173 private Preference mSavedNetworksPreference; 174 private LinkablePreference mStatusMessagePreference; 175 176 // For Search 177 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 178 179 /* End of "used in Wifi Setup context" */ 180 181 public WifiSettings() { 182 super(DISALLOW_CONFIG_WIFI); 183 } 184 185 @Override 186 public void onViewCreated(View view, Bundle savedInstanceState) { 187 super.onViewCreated(view, savedInstanceState); 188 final Activity activity = getActivity(); 189 if (activity != null) { 190 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 191 setProgressBarVisible(false); 192 } 193 } 194 195 @Override 196 public void onCreate(Bundle icicle) { 197 super.onCreate(icicle); 198 199 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 200 // loaded (ODR). 201 setAnimationAllowed(false); 202 203 addPreferencesFromResource(R.xml.wifi_settings); 204 205 mConnectedAccessPointPreferenceCategory = 206 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 207 mAccessPointsPreferenceCategory = 208 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 209 mAdditionalSettingsPreferenceCategory = 210 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 211 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 212 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 213 214 Context prefContext = getPrefContext(); 215 mAddPreference = new Preference(prefContext); 216 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 217 mAddPreference.setTitle(R.string.wifi_add_network); 218 mStatusMessagePreference = new LinkablePreference(prefContext); 219 220 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 221 222 mIsRestricted = isUiRestricted(); 223 224 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 225 mBgThread.start(); 226 } 227 228 @Override 229 public void onDestroy() { 230 mBgThread.quit(); 231 super.onDestroy(); 232 } 233 234 @Override 235 public void onActivityCreated(Bundle savedInstanceState) { 236 super.onActivityCreated(savedInstanceState); 237 238 mWifiTracker = WifiTrackerFactory.create( 239 getActivity(), this, mBgThread.getLooper(), true, true, false); 240 mWifiManager = mWifiTracker.getManager(); 241 242 mConnectListener = new WifiManager.ActionListener() { 243 @Override 244 public void onSuccess() { 245 } 246 @Override 247 public void onFailure(int reason) { 248 Activity activity = getActivity(); 249 if (activity != null) { 250 Toast.makeText(activity, 251 R.string.wifi_failed_connect_message, 252 Toast.LENGTH_SHORT).show(); 253 } 254 } 255 }; 256 257 mSaveListener = new WifiManager.ActionListener() { 258 @Override 259 public void onSuccess() { 260 } 261 @Override 262 public void onFailure(int reason) { 263 Activity activity = getActivity(); 264 if (activity != null) { 265 Toast.makeText(activity, 266 R.string.wifi_failed_save_message, 267 Toast.LENGTH_SHORT).show(); 268 } 269 } 270 }; 271 272 mForgetListener = new WifiManager.ActionListener() { 273 @Override 274 public void onSuccess() { 275 } 276 @Override 277 public void onFailure(int reason) { 278 Activity activity = getActivity(); 279 if (activity != null) { 280 Toast.makeText(activity, 281 R.string.wifi_failed_forget_message, 282 Toast.LENGTH_SHORT).show(); 283 } 284 } 285 }; 286 287 if (savedInstanceState != null) { 288 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 289 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 290 mAccessPointSavedState = 291 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 292 } 293 294 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 295 mWifiNfcDialogSavedState = 296 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 297 } 298 } 299 300 // if we're supposed to enable/disable the Next button based on our current connection 301 // state, start it off in the right state 302 Intent intent = getActivity().getIntent(); 303 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 304 305 if (mEnableNextOnConnection) { 306 if (hasNextButton()) { 307 final ConnectivityManager connectivity = (ConnectivityManager) 308 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 309 if (connectivity != null) { 310 NetworkInfo info = connectivity.getNetworkInfo( 311 ConnectivityManager.TYPE_WIFI); 312 changeNextButtonState(info.isConnected()); 313 } 314 } 315 } 316 317 registerForContextMenu(getListView()); 318 setHasOptionsMenu(true); 319 320 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 321 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 322 } 323 } 324 325 @Override 326 public void onDestroyView() { 327 super.onDestroyView(); 328 329 if (mWifiEnabler != null) { 330 mWifiEnabler.teardownSwitchController(); 331 } 332 } 333 334 @Override 335 public void onStart() { 336 super.onStart(); 337 338 // On/off switch is hidden for Setup Wizard (returns null) 339 mWifiEnabler = createWifiEnabler(); 340 341 mWifiTracker.startTracking(); 342 343 if (mIsRestricted) { 344 if (!isUiRestrictedByOnlyAdmin()) { 345 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 346 } 347 getPreferenceScreen().removeAll(); 348 return; 349 } 350 351 onWifiStateChanged(mWifiManager.getWifiState()); 352 } 353 354 /** 355 * Only update the AP list if there are not any APs currently shown. 356 * 357 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 358 * and off. In other use cases, the previous APs will remain until the next update is received 359 * from {@link WifiTracker}. 360 */ 361 private void conditionallyForceUpdateAPs() { 362 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 363 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 364 AccessPointPreference) { 365 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 366 // WifiTracker. 367 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 368 getView().removeCallbacks(mUpdateAccessPointsRunnable); 369 return; 370 } 371 setProgressBarVisible(true); 372 mWifiTracker.forceUpdate(); 373 if (DEBUG) { 374 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 375 } 376 getView().removeCallbacks(mUpdateAccessPointsRunnable); 377 updateAccessPointPreferences(); 378 } 379 380 /** 381 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 382 */ 383 private WifiEnabler createWifiEnabler() { 384 final SettingsActivity activity = (SettingsActivity) getActivity(); 385 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 386 mMetricsFeatureProvider); 387 } 388 389 @Override 390 public void onResume() { 391 final Activity activity = getActivity(); 392 super.onResume(); 393 if (mWifiEnabler != null) { 394 mWifiEnabler.resume(activity); 395 } 396 } 397 398 @Override 399 public void onPause() { 400 super.onPause(); 401 if (mWifiEnabler != null) { 402 mWifiEnabler.pause(); 403 } 404 } 405 406 @Override 407 public void onStop() { 408 mWifiTracker.stopTracking(); 409 getView().removeCallbacks(mUpdateAccessPointsRunnable); 410 getView().removeCallbacks(mHideProgressBarRunnable); 411 super.onStop(); 412 } 413 414 @Override 415 public int getMetricsCategory() { 416 return MetricsEvent.WIFI; 417 } 418 419 @Override 420 public void onSaveInstanceState(Bundle outState) { 421 super.onSaveInstanceState(outState); 422 423 // If the dialog is showing, save its state. 424 if (mDialog != null && mDialog.isShowing()) { 425 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 426 if (mDlgAccessPoint != null) { 427 mAccessPointSavedState = new Bundle(); 428 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 429 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 430 } 431 } 432 433 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 434 Bundle savedState = new Bundle(); 435 mWifiToNfcDialog.saveState(savedState); 436 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 437 } 438 } 439 440 @Override 441 public boolean onOptionsItemSelected(MenuItem item) { 442 // If the user is not allowed to configure wifi, do not handle menu selections. 443 if (mIsRestricted) { 444 return false; 445 } 446 447 switch (item.getItemId()) { 448 case MENU_ID_WPS_PBC: 449 showDialog(WPS_PBC_DIALOG_ID); 450 return true; 451 case MENU_ID_WPS_PIN: 452 showDialog(WPS_PIN_DIALOG_ID); 453 return true; 454 } 455 return super.onOptionsItemSelected(item); 456 } 457 458 @Override 459 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 460 Preference preference = (Preference) view.getTag(); 461 462 if (preference instanceof LongPressAccessPointPreference) { 463 mSelectedAccessPoint = 464 ((LongPressAccessPointPreference) preference).getAccessPoint(); 465 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 466 if (mSelectedAccessPoint.isConnectable()) { 467 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 468 } 469 470 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 471 // Some configs are ineditable 472 if (isEditabilityLockedDown(getActivity(), config)) { 473 return; 474 } 475 476 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 477 // Allow forgetting a network if either the network is saved or ephemerally 478 // connected. (In the latter case, "forget" blacklists the network so it won't 479 // be used again, ephemerally). 480 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 481 } 482 if (mSelectedAccessPoint.isSaved()) { 483 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 484 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 485 if (nfcAdapter != null && nfcAdapter.isEnabled() && 486 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 487 // Only allow writing of NFC tags for password-protected networks. 488 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 489 } 490 } 491 } 492 } 493 494 @Override 495 public boolean onContextItemSelected(MenuItem item) { 496 if (mSelectedAccessPoint == null) { 497 return super.onContextItemSelected(item); 498 } 499 switch (item.getItemId()) { 500 case MENU_ID_CONNECT: { 501 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 502 if (isSavedNetwork) { 503 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 504 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 505 /** Bypass dialog for unsecured networks */ 506 mSelectedAccessPoint.generateOpenNetworkConfig(); 507 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 508 } else { 509 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 510 } 511 return true; 512 } 513 case MENU_ID_FORGET: { 514 forget(); 515 return true; 516 } 517 case MENU_ID_MODIFY: { 518 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 519 return true; 520 } 521 case MENU_ID_WRITE_NFC: 522 showDialog(WRITE_NFC_DIALOG_ID); 523 return true; 524 525 } 526 return super.onContextItemSelected(item); 527 } 528 529 @Override 530 public boolean onPreferenceTreeClick(Preference preference) { 531 // If the preference has a fragment set, open that 532 if (preference.getFragment() != null) { 533 preference.setOnPreferenceClickListener(null); 534 return super.onPreferenceTreeClick(preference); 535 } 536 537 if (preference instanceof LongPressAccessPointPreference) { 538 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 539 if (mSelectedAccessPoint == null) { 540 return false; 541 } 542 if (mSelectedAccessPoint.isActive()) { 543 return super.onPreferenceTreeClick(preference); 544 } 545 /** 546 * Bypass dialog and connect to unsecured networks, or previously connected saved 547 * networks, or Passpoint provided networks. 548 */ 549 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 550 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 551 mSelectedAccessPoint.generateOpenNetworkConfig(); 552 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 553 } else if (mSelectedAccessPoint.isSaved() && config != null 554 && config.getNetworkSelectionStatus() != null 555 && config.getNetworkSelectionStatus().getHasEverConnected()) { 556 connect(config, true /* isSavedNetwork */); 557 } else if (mSelectedAccessPoint.isPasspoint()) { 558 // Access point provided by an installed Passpoint provider, connect using 559 // the associated config. 560 connect(config, true /* isSavedNetwork */); 561 } else { 562 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 563 } 564 } else if (preference == mAddPreference) { 565 onAddNetworkPressed(); 566 } else { 567 return super.onPreferenceTreeClick(preference); 568 } 569 return true; 570 } 571 572 private void showDialog(AccessPoint accessPoint, int dialogMode) { 573 if (accessPoint != null) { 574 WifiConfiguration config = accessPoint.getConfig(); 575 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 576 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 577 RestrictedLockUtils.getDeviceOwner(getActivity())); 578 return; 579 } 580 } 581 582 if (mDialog != null) { 583 removeDialog(WIFI_DIALOG_ID); 584 mDialog = null; 585 } 586 587 // Save the access point and edit mode 588 mDlgAccessPoint = accessPoint; 589 mDialogMode = dialogMode; 590 591 showDialog(WIFI_DIALOG_ID); 592 } 593 594 @Override 595 public Dialog onCreateDialog(int dialogId) { 596 switch (dialogId) { 597 case WIFI_DIALOG_ID: 598 AccessPoint ap = mDlgAccessPoint; // For manual launch 599 if (ap == null) { // For re-launch from saved state 600 if (mAccessPointSavedState != null) { 601 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 602 // For repeated orientation changes 603 mDlgAccessPoint = ap; 604 // Reset the saved access point data 605 mAccessPointSavedState = null; 606 } 607 } 608 // If it's null, fine, it's for Add Network 609 mSelectedAccessPoint = ap; 610 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 611 /* no hide submit/connect */ false); 612 return mDialog; 613 case WPS_PBC_DIALOG_ID: 614 return new WpsDialog(getActivity(), WpsInfo.PBC); 615 case WPS_PIN_DIALOG_ID: 616 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 617 case WRITE_NFC_DIALOG_ID: 618 if (mSelectedAccessPoint != null) { 619 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 620 getActivity(), 621 mSelectedAccessPoint.getSecurity(), 622 new WifiManagerWrapper(mWifiManager)); 623 } else if (mWifiNfcDialogSavedState != null) { 624 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 625 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 626 } 627 628 return mWifiToNfcDialog; 629 } 630 return super.onCreateDialog(dialogId); 631 } 632 633 @Override 634 public int getDialogMetricsCategory(int dialogId) { 635 switch (dialogId) { 636 case WIFI_DIALOG_ID: 637 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 638 case WPS_PBC_DIALOG_ID: 639 return MetricsEvent.DIALOG_WIFI_PBC; 640 case WPS_PIN_DIALOG_ID: 641 return MetricsEvent.DIALOG_WIFI_PIN; 642 case WRITE_NFC_DIALOG_ID: 643 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 644 default: 645 return 0; 646 } 647 } 648 649 /** 650 * Called to indicate the list of AccessPoints has been updated and 651 * getAccessPoints should be called to get the latest information. 652 */ 653 @Override 654 public void onAccessPointsChanged() { 655 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 656 updateAccessPointsDelayed(); 657 } 658 659 /** 660 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 661 * progress bar displayed before starting to modify APs. 662 */ 663 private void updateAccessPointsDelayed() { 664 // Safeguard from some delayed event handling 665 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 666 setProgressBarVisible(true); 667 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 668 } 669 } 670 671 /** Called when the state of Wifi has changed. */ 672 @Override 673 public void onWifiStateChanged(int state) { 674 if (mIsRestricted) { 675 return; 676 } 677 678 final int wifiState = mWifiManager.getWifiState(); 679 switch (wifiState) { 680 case WifiManager.WIFI_STATE_ENABLED: 681 conditionallyForceUpdateAPs(); 682 break; 683 684 case WifiManager.WIFI_STATE_ENABLING: 685 removeConnectedAccessPointPreference(); 686 mAccessPointsPreferenceCategory.removeAll(); 687 addMessagePreference(R.string.wifi_starting); 688 setProgressBarVisible(true); 689 break; 690 691 case WifiManager.WIFI_STATE_DISABLING: 692 removeConnectedAccessPointPreference(); 693 mAccessPointsPreferenceCategory.removeAll(); 694 addMessagePreference(R.string.wifi_stopping); 695 break; 696 697 case WifiManager.WIFI_STATE_DISABLED: 698 setOffMessage(); 699 setAdditionalSettingsSummaries(); 700 setProgressBarVisible(false); 701 break; 702 } 703 } 704 705 /** 706 * Called when the connection state of wifi has changed and isConnected 707 * should be called to get the updated state. 708 */ 709 @Override 710 public void onConnectedChanged() { 711 updateAccessPointsDelayed(); 712 changeNextButtonState(mWifiTracker.isConnected()); 713 } 714 715 private void updateAccessPointPreferences() { 716 // in case state has changed 717 if (!mWifiManager.isWifiEnabled()) { 718 return; 719 } 720 // AccessPoints are sorted by the WifiTracker 721 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 722 if (DEBUG) { 723 Log.d(TAG, "updateAccessPoints called for: " + accessPoints); 724 } 725 726 boolean hasAvailableAccessPoints = false; 727 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 728 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 729 730 int index = 731 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 732 int numAccessPoints = accessPoints.size(); 733 for (; index < numAccessPoints; index++) { 734 AccessPoint accessPoint = accessPoints.get(index); 735 // Ignore access points that are out of range. 736 if (accessPoint.isReachable()) { 737 String key = AccessPointPreference.generatePreferenceKey(accessPoint); 738 hasAvailableAccessPoints = true; 739 LongPressAccessPointPreference pref = 740 (LongPressAccessPointPreference) getCachedPreference(key); 741 if (pref != null) { 742 pref.setOrder(index); 743 continue; 744 } 745 LongPressAccessPointPreference preference = 746 createLongPressActionPointPreference(accessPoint); 747 preference.setKey(key); 748 preference.setOrder(index); 749 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 750 && !accessPoint.isSaved() 751 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 752 onPreferenceTreeClick(preference); 753 mOpenSsid = null; 754 } 755 mAccessPointsPreferenceCategory.addPreference(preference); 756 accessPoint.setListener(WifiSettings.this); 757 preference.refresh(); 758 } 759 } 760 removeCachedPrefs(mAccessPointsPreferenceCategory); 761 mAddPreference.setOrder(index); 762 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 763 setAdditionalSettingsSummaries(); 764 765 if (!hasAvailableAccessPoints) { 766 setProgressBarVisible(true); 767 Preference pref = new Preference(getPrefContext()); 768 pref.setSelectable(false); 769 pref.setSummary(R.string.wifi_empty_list_wifi_on); 770 pref.setOrder(index++); 771 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 772 mAccessPointsPreferenceCategory.addPreference(pref); 773 } else { 774 // Continuing showing progress bar for an additional delay to overlap with animation 775 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 776 } 777 } 778 779 @NonNull 780 private LongPressAccessPointPreference createLongPressActionPointPreference( 781 AccessPoint accessPoint) { 782 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 783 false, R.drawable.ic_wifi_signal_0, this); 784 } 785 786 /** 787 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 788 * shown. 789 */ 790 private boolean configureConnectedAccessPointPreferenceCategory( 791 List<AccessPoint> accessPoints) { 792 if (accessPoints.size() == 0) { 793 removeConnectedAccessPointPreference(); 794 return false; 795 } 796 797 AccessPoint connectedAp = accessPoints.get(0); 798 if (!connectedAp.isActive()) { 799 removeConnectedAccessPointPreference(); 800 return false; 801 } 802 803 // Is the preference category empty? 804 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 805 addConnectedAccessPointPreference(connectedAp); 806 return true; 807 } 808 809 // Is the previous currently connected SSID different from the new one? 810 if (!((AccessPointPreference) 811 mConnectedAccessPointPreferenceCategory.getPreference(0)) 812 .getAccessPoint().getSsidStr().equals( 813 connectedAp.getSsidStr())) { 814 removeConnectedAccessPointPreference(); 815 addConnectedAccessPointPreference(connectedAp); 816 return true; 817 } 818 819 // Else same AP is connected, simply refresh the connected access point preference 820 // (first and only access point in this category). 821 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 822 .refresh(); 823 return true; 824 } 825 826 /** 827 * Creates a Preference for the given {@link AccessPoint} and adds it to the 828 * {@link #mConnectedAccessPointPreferenceCategory}. 829 */ 830 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 831 String key = connectedAp.getBssid(); 832 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 833 getCachedPreference(key); 834 if (pref == null) { 835 pref = createLongPressActionPointPreference(connectedAp); 836 } 837 838 // Save the state of the current access point in the bundle so that we can restore it 839 // in the Wifi Network Details Fragment 840 pref.getAccessPoint().saveWifiState(pref.getExtras()); 841 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 842 pref.refresh(); 843 844 mConnectedAccessPointPreferenceCategory.addPreference(pref); 845 mConnectedAccessPointPreferenceCategory.setVisible(true); 846 } 847 848 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 849 private void removeConnectedAccessPointPreference() { 850 mConnectedAccessPointPreferenceCategory.removeAll(); 851 mConnectedAccessPointPreferenceCategory.setVisible(false); 852 } 853 854 private void setAdditionalSettingsSummaries() { 855 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 856 final int defaultWakeupAvailable = getResources().getInteger( 857 com.android.internal.R.integer.config_wifi_wakeup_available); 858 boolean wifiWakeupAvailable = Settings.Global.getInt( 859 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 860 == 1; 861 if (wifiWakeupAvailable) { 862 boolean wifiWakeupEnabled = Settings.Global.getInt( 863 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 864 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 865 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 866 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 867 } 868 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 869 if (numSavedNetworks > 0) { 870 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 871 mSavedNetworksPreference.setSummary( 872 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 873 numSavedNetworks, numSavedNetworks)); 874 } else { 875 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 876 } 877 } 878 879 private void setOffMessage() { 880 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 881 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 882 // read the system settings directly. Because when the device is in Airplane mode, even if 883 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 884 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 885 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 886 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 887 : getText(R.string.wifi_scan_notify_text_scanning_off); 888 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 889 @Override 890 public void onClick() { 891 final SettingsActivity activity = (SettingsActivity) getActivity(); 892 activity.startPreferencePanel(WifiSettings.this, 893 ScanningSettings.class.getName(), 894 null, R.string.location_scanning_screen_title, null, null, 0); 895 } 896 }; 897 mStatusMessagePreference.setText(title, description, clickListener); 898 removeConnectedAccessPointPreference(); 899 mAccessPointsPreferenceCategory.removeAll(); 900 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 901 } 902 903 private void addMessagePreference(int messageId) { 904 mStatusMessagePreference.setTitle(messageId); 905 removeConnectedAccessPointPreference(); 906 mAccessPointsPreferenceCategory.removeAll(); 907 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 908 } 909 910 protected void setProgressBarVisible(boolean visible) { 911 if (mProgressHeader != null) { 912 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 913 } 914 } 915 916 /** 917 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 918 * Wifi setup screens, not in usual wifi settings screen. 919 * 920 * @param enabled true when the device is connected to a wifi network. 921 */ 922 private void changeNextButtonState(boolean enabled) { 923 if (mEnableNextOnConnection && hasNextButton()) { 924 getNextButton().setEnabled(enabled); 925 } 926 } 927 928 @Override 929 public void onForget(WifiDialog dialog) { 930 forget(); 931 } 932 933 @Override 934 public void onSubmit(WifiDialog dialog) { 935 if (mDialog != null) { 936 submit(mDialog.getController()); 937 } 938 } 939 940 /* package */ void submit(WifiConfigController configController) { 941 942 final WifiConfiguration config = configController.getConfig(); 943 944 if (config == null) { 945 if (mSelectedAccessPoint != null 946 && mSelectedAccessPoint.isSaved()) { 947 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 948 } 949 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 950 mWifiManager.save(config, mSaveListener); 951 } else { 952 mWifiManager.save(config, mSaveListener); 953 if (mSelectedAccessPoint != null) { // Not an "Add network" 954 connect(config, false /* isSavedNetwork */); 955 } 956 } 957 958 mWifiTracker.resumeScanning(); 959 } 960 961 /* package */ void forget() { 962 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 963 if (!mSelectedAccessPoint.isSaved()) { 964 if (mSelectedAccessPoint.getNetworkInfo() != null && 965 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 966 // Network is active but has no network ID - must be ephemeral. 967 mWifiManager.disableEphemeralNetwork( 968 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 969 } else { 970 // Should not happen, but a monkey seems to trigger it 971 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 972 return; 973 } 974 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 975 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 976 } else { 977 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 978 } 979 980 mWifiTracker.resumeScanning(); 981 982 // We need to rename/replace "Next" button in wifi setup context. 983 changeNextButtonState(false); 984 } 985 986 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 987 // Log subtype if configuration is a saved network. 988 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 989 isSavedNetwork); 990 mWifiManager.connect(config, mConnectListener); 991 scrollToPreference(mConnectedAccessPointPreferenceCategory); 992 } 993 994 protected void connect(final int networkId, boolean isSavedNetwork) { 995 // Log subtype if configuration is a saved network. 996 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 997 isSavedNetwork); 998 mWifiManager.connect(networkId, mConnectListener); 999 } 1000 1001 /** 1002 * Called when "add network" button is pressed. 1003 */ 1004 /* package */ void onAddNetworkPressed() { 1005 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1006 // No exact access point is selected. 1007 mSelectedAccessPoint = null; 1008 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1009 } 1010 1011 @Override 1012 protected int getHelpResource() { 1013 return R.string.help_url_wifi; 1014 } 1015 1016 @Override 1017 public void onAccessPointChanged(final AccessPoint accessPoint) { 1018 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1019 View view = getView(); 1020 if (view != null) { 1021 view.post(new Runnable() { 1022 @Override 1023 public void run() { 1024 Object tag = accessPoint.getTag(); 1025 if (tag != null) { 1026 ((LongPressAccessPointPreference) tag).refresh(); 1027 } 1028 } 1029 }); 1030 } 1031 } 1032 1033 @Override 1034 public void onLevelChanged(AccessPoint accessPoint) { 1035 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1036 } 1037 1038 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1039 new BaseSearchIndexProvider() { 1040 @Override 1041 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1042 final List<SearchIndexableRaw> result = new ArrayList<>(); 1043 final Resources res = context.getResources(); 1044 1045 // Add fragment title 1046 SearchIndexableRaw data = new SearchIndexableRaw(context); 1047 data.title = res.getString(R.string.wifi_settings); 1048 data.screenTitle = res.getString(R.string.wifi_settings); 1049 data.keywords = res.getString(R.string.keywords_wifi); 1050 data.key = DATA_KEY_REFERENCE; 1051 result.add(data); 1052 1053 // Add saved Wi-Fi access points 1054 final List<AccessPoint> accessPoints = 1055 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1056 for (AccessPoint accessPoint : accessPoints) { 1057 data = new SearchIndexableRaw(context); 1058 data.title = accessPoint.getSsidStr(); 1059 data.screenTitle = res.getString(R.string.wifi_settings); 1060 data.enabled = enabled; 1061 result.add(data); 1062 } 1063 1064 return result; 1065 } 1066 }; 1067 1068 /** 1069 * Returns true if the config is not editable through Settings. 1070 * @param context Context of caller 1071 * @param config The WiFi config. 1072 * @return true if the config is not editable through Settings. 1073 */ 1074 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1075 return !canModifyNetwork(context, config); 1076 } 1077 1078 /** 1079 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1080 * TODO: refactor to have only one method. 1081 * @param context Context of caller 1082 * @param config The WiFi config. 1083 * @return true if Settings can modify the config. 1084 */ 1085 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1086 if (config == null) { 1087 return true; 1088 } 1089 1090 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1091 Context.DEVICE_POLICY_SERVICE); 1092 1093 // Check if device has DPM capability. If it has and dpm is still null, then we 1094 // treat this case with suspicion and bail out. 1095 final PackageManager pm = context.getPackageManager(); 1096 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1097 return false; 1098 } 1099 1100 boolean isConfigEligibleForLockdown = false; 1101 if (dpm != null) { 1102 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1103 if (deviceOwner != null) { 1104 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1105 try { 1106 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1107 deviceOwnerUserId); 1108 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1109 } catch (NameNotFoundException e) { 1110 // don't care 1111 } 1112 } 1113 } 1114 if (!isConfigEligibleForLockdown) { 1115 return true; 1116 } 1117 1118 final ContentResolver resolver = context.getContentResolver(); 1119 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1120 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1121 return !isLockdownFeatureEnabled; 1122 } 1123 1124 private static class SummaryProvider 1125 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1126 1127 private final Context mContext; 1128 private final SummaryLoader mSummaryLoader; 1129 1130 @VisibleForTesting 1131 WifiSummaryUpdater mSummaryHelper; 1132 1133 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1134 mContext = context; 1135 mSummaryLoader = summaryLoader; 1136 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1137 } 1138 1139 1140 @Override 1141 public void setListening(boolean listening) { 1142 mSummaryHelper.register(listening); 1143 } 1144 1145 @Override 1146 public void onSummaryChanged(String summary) { 1147 mSummaryLoader.setSummary(this, summary); 1148 } 1149 } 1150 1151 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1152 = new SummaryLoader.SummaryProviderFactory() { 1153 @Override 1154 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1155 SummaryLoader summaryLoader) { 1156 return new SummaryProvider(activity, summaryLoader); 1157 } 1158 }; 1159} 1160