WifiSettings.java revision 0820ee350f7dd6609b51bc0322d600b966e938a7
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.settings.wifi; 18 19import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 20 21import android.annotation.NonNull; 22import android.app.Activity; 23import android.app.Dialog; 24import android.app.admin.DevicePolicyManager; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.PackageManager; 30import android.content.pm.PackageManager.NameNotFoundException; 31import android.content.res.Resources; 32import android.net.ConnectivityManager; 33import android.net.NetworkInfo; 34import android.net.NetworkInfo.State; 35import android.net.wifi.WifiConfiguration; 36import android.net.wifi.WifiManager; 37import android.net.wifi.WpsInfo; 38import android.nfc.NfcAdapter; 39import android.os.Bundle; 40import android.os.HandlerThread; 41import android.os.Process; 42import android.provider.Settings; 43import android.support.annotation.VisibleForTesting; 44import android.support.v7.preference.Preference; 45import android.support.v7.preference.PreferenceCategory; 46import android.support.v7.preference.PreferenceManager; 47import android.text.TextUtils; 48import android.util.Log; 49import android.view.ContextMenu; 50import android.view.ContextMenu.ContextMenuInfo; 51import android.view.Menu; 52import android.view.MenuItem; 53import android.view.View; 54import android.widget.ProgressBar; 55import android.widget.Toast; 56 57import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 58import com.android.settings.LinkifyUtils; 59import com.android.settings.R; 60import com.android.settings.RestrictedSettingsFragment; 61import com.android.settings.SettingsActivity; 62import com.android.settings.dashboard.SummaryLoader; 63import com.android.settings.location.ScanningSettings; 64import com.android.settings.search.BaseSearchIndexProvider; 65import com.android.settings.search.Indexable; 66import com.android.settings.search.SearchIndexableRaw; 67import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 68import com.android.settings.widget.SwitchBarController; 69import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 70import com.android.settingslib.RestrictedLockUtils; 71import com.android.settingslib.wifi.AccessPoint; 72import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 73import com.android.settingslib.wifi.AccessPointPreference; 74import com.android.settingslib.wifi.WifiTracker; 75import com.android.settingslib.wifi.WifiTrackerFactory; 76 77import java.util.ArrayList; 78import java.util.List; 79 80/** 81 * Two types of UI are provided here. 82 * 83 * The first is for "usual Settings", appearing as any other Setup fragment. 84 * 85 * The second is for Setup Wizard, with a simplified interface that hides the action bar 86 * and menus. 87 */ 88public class WifiSettings extends RestrictedSettingsFragment 89 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 90 WifiDialog.WifiDialogListener { 91 92 private static final String TAG = "WifiSettings"; 93 94 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 95 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 96 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 97 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 98 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 99 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 100 101 public static final int WIFI_DIALOG_ID = 1; 102 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 103 private static final int WPS_PIN_DIALOG_ID = 3; 104 private static final int WRITE_NFC_DIALOG_ID = 6; 105 106 // Instance state keys 107 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 108 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 109 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 110 111 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 112 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 113 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 114 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 115 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 116 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 117 118 private final Runnable mUpdateAccessPointsRunnable = () -> { 119 updateAccessPointPreferences(); 120 }; 121 private final Runnable mHideProgressBarRunnable = () -> { 122 setProgressBarVisible(false); 123 }; 124 125 protected WifiManager mWifiManager; 126 private WifiManager.ActionListener mConnectListener; 127 private WifiManager.ActionListener mSaveListener; 128 private WifiManager.ActionListener mForgetListener; 129 130 private WifiEnabler mWifiEnabler; 131 // An access point being editted is stored here. 132 private AccessPoint mSelectedAccessPoint; 133 134 private WifiDialog mDialog; 135 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 136 137 private ProgressBar mProgressHeader; 138 139 // this boolean extra specifies whether to disable the Next button when not connected. Used by 140 // account creation outside of setup wizard. 141 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 142 // This string extra specifies a network to open the connect dialog on, so the user can enter 143 // network credentials. This is used by quick settings for secured networks. 144 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 145 146 // should Next button only be enabled when we have a connection? 147 private boolean mEnableNextOnConnection; 148 149 // Save the dialog details 150 private int mDialogMode; 151 private AccessPoint mDlgAccessPoint; 152 private Bundle mAccessPointSavedState; 153 private Bundle mWifiNfcDialogSavedState; 154 155 private WifiTracker mWifiTracker; 156 private String mOpenSsid; 157 158 private HandlerThread mBgThread; 159 160 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 161 162 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 163 private PreferenceCategory mAccessPointsPreferenceCategory; 164 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 165 private Preference mAddPreference; 166 private Preference mConfigureWifiSettingsPreference; 167 private Preference mSavedNetworksPreference; 168 private LinkablePreference mStatusMessagePreference; 169 170 // For Search 171 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 172 173 /* End of "used in Wifi Setup context" */ 174 175 public WifiSettings() { 176 super(DISALLOW_CONFIG_WIFI); 177 } 178 179 @Override 180 public void onViewCreated(View view, Bundle savedInstanceState) { 181 super.onViewCreated(view, savedInstanceState); 182 final Activity activity = getActivity(); 183 if (activity != null) { 184 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 185 setProgressBarVisible(false); 186 } 187 } 188 189 @Override 190 public void onCreate(Bundle icicle) { 191 super.onCreate(icicle); 192 193 getPreferenceManager().setPreferenceComparisonCallback( 194 new PreferenceManager.SimplePreferenceComparisonCallback()); 195 addPreferencesFromResource(R.xml.wifi_settings); 196 197 mConnectedAccessPointPreferenceCategory = 198 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 199 mAccessPointsPreferenceCategory = 200 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 201 mAdditionalSettingsPreferenceCategory = 202 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 203 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 204 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 205 206 Context prefContext = getPrefContext(); 207 mAddPreference = new Preference(prefContext); 208 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 209 mAddPreference.setTitle(R.string.wifi_add_network); 210 mStatusMessagePreference = new LinkablePreference(prefContext); 211 212 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 213 214 if (isUiRestricted()) { 215 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 216 addMessagePreference(R.string.wifi_empty_list_user_restricted); 217 } 218 219 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 220 mBgThread.start(); 221 } 222 223 @Override 224 public void onDestroy() { 225 mBgThread.quit(); 226 super.onDestroy(); 227 } 228 229 @Override 230 public void onActivityCreated(Bundle savedInstanceState) { 231 super.onActivityCreated(savedInstanceState); 232 233 mWifiTracker = WifiTrackerFactory.create( 234 getActivity(), this, mBgThread.getLooper(), true, true, false); 235 mWifiManager = mWifiTracker.getManager(); 236 237 mConnectListener = new WifiManager.ActionListener() { 238 @Override 239 public void onSuccess() { 240 } 241 @Override 242 public void onFailure(int reason) { 243 Activity activity = getActivity(); 244 if (activity != null) { 245 Toast.makeText(activity, 246 R.string.wifi_failed_connect_message, 247 Toast.LENGTH_SHORT).show(); 248 } 249 } 250 }; 251 252 mSaveListener = new WifiManager.ActionListener() { 253 @Override 254 public void onSuccess() { 255 } 256 @Override 257 public void onFailure(int reason) { 258 Activity activity = getActivity(); 259 if (activity != null) { 260 Toast.makeText(activity, 261 R.string.wifi_failed_save_message, 262 Toast.LENGTH_SHORT).show(); 263 } 264 } 265 }; 266 267 mForgetListener = new WifiManager.ActionListener() { 268 @Override 269 public void onSuccess() { 270 } 271 @Override 272 public void onFailure(int reason) { 273 Activity activity = getActivity(); 274 if (activity != null) { 275 Toast.makeText(activity, 276 R.string.wifi_failed_forget_message, 277 Toast.LENGTH_SHORT).show(); 278 } 279 } 280 }; 281 282 if (savedInstanceState != null) { 283 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 284 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 285 mAccessPointSavedState = 286 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 287 } 288 289 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 290 mWifiNfcDialogSavedState = 291 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 292 } 293 } 294 295 // if we're supposed to enable/disable the Next button based on our current connection 296 // state, start it off in the right state 297 Intent intent = getActivity().getIntent(); 298 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 299 300 if (mEnableNextOnConnection) { 301 if (hasNextButton()) { 302 final ConnectivityManager connectivity = (ConnectivityManager) 303 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 304 if (connectivity != null) { 305 NetworkInfo info = connectivity.getNetworkInfo( 306 ConnectivityManager.TYPE_WIFI); 307 changeNextButtonState(info.isConnected()); 308 } 309 } 310 } 311 312 registerForContextMenu(getListView()); 313 setHasOptionsMenu(true); 314 315 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 316 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 317 updateAccessPointsDelayed(); 318 } 319 } 320 321 @Override 322 public void onDestroyView() { 323 super.onDestroyView(); 324 325 if (mWifiEnabler != null) { 326 mWifiEnabler.teardownSwitchController(); 327 } 328 } 329 330 @Override 331 public void onStart() { 332 super.onStart(); 333 334 // On/off switch is hidden for Setup Wizard (returns null) 335 mWifiEnabler = createWifiEnabler(); 336 337 mWifiTracker.startTracking(); 338 } 339 340 /** 341 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 342 */ 343 private WifiEnabler createWifiEnabler() { 344 final SettingsActivity activity = (SettingsActivity) getActivity(); 345 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 346 mMetricsFeatureProvider); 347 } 348 349 @Override 350 public void onResume() { 351 final Activity activity = getActivity(); 352 super.onResume(); 353 if (mWifiEnabler != null) { 354 mWifiEnabler.resume(activity); 355 } 356 357 activity.invalidateOptionsMenu(); 358 } 359 360 @Override 361 public void onPause() { 362 super.onPause(); 363 if (mWifiEnabler != null) { 364 mWifiEnabler.pause(); 365 } 366 } 367 368 @Override 369 public void onStop() { 370 mWifiTracker.stopTracking(); 371 getView().removeCallbacks(mUpdateAccessPointsRunnable); 372 getView().removeCallbacks(mHideProgressBarRunnable); 373 super.onStop(); 374 } 375 376 @Override 377 public int getMetricsCategory() { 378 return MetricsEvent.WIFI; 379 } 380 381 @Override 382 public void onSaveInstanceState(Bundle outState) { 383 super.onSaveInstanceState(outState); 384 385 // If the dialog is showing, save its state. 386 if (mDialog != null && mDialog.isShowing()) { 387 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 388 if (mDlgAccessPoint != null) { 389 mAccessPointSavedState = new Bundle(); 390 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 391 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 392 } 393 } 394 395 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 396 Bundle savedState = new Bundle(); 397 mWifiToNfcDialog.saveState(savedState); 398 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 399 } 400 } 401 402 @Override 403 public boolean onOptionsItemSelected(MenuItem item) { 404 // If the user is not allowed to configure wifi, do not handle menu selections. 405 if (isUiRestricted()) return false; 406 407 switch (item.getItemId()) { 408 case MENU_ID_WPS_PBC: 409 showDialog(WPS_PBC_DIALOG_ID); 410 return true; 411 /* 412 case MENU_ID_P2P: 413 if (getActivity() instanceof SettingsActivity) { 414 ((SettingsActivity) getActivity()).startPreferencePanel( 415 WifiP2pSettings.class.getCanonicalName(), 416 null, 417 R.string.wifi_p2p_settings_title, null, 418 this, 0); 419 } else { 420 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 421 R.string.wifi_p2p_settings_title, -1, null); 422 } 423 return true; 424 */ 425 case MENU_ID_WPS_PIN: 426 showDialog(WPS_PIN_DIALOG_ID); 427 return true; 428 } 429 return super.onOptionsItemSelected(item); 430 } 431 432 @Override 433 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 434 Preference preference = (Preference) view.getTag(); 435 436 if (preference instanceof LongPressAccessPointPreference) { 437 mSelectedAccessPoint = 438 ((LongPressAccessPointPreference) preference).getAccessPoint(); 439 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 440 if (mSelectedAccessPoint.isConnectable()) { 441 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 442 } 443 444 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 445 // Some configs are ineditable 446 if (isEditabilityLockedDown(getActivity(), config)) { 447 return; 448 } 449 450 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 451 // Allow forgetting a network if either the network is saved or ephemerally 452 // connected. (In the latter case, "forget" blacklists the network so it won't 453 // be used again, ephemerally). 454 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 455 } 456 if (mSelectedAccessPoint.isSaved()) { 457 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 458 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 459 if (nfcAdapter != null && nfcAdapter.isEnabled() && 460 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 461 // Only allow writing of NFC tags for password-protected networks. 462 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 463 } 464 } 465 } 466 } 467 468 @Override 469 public boolean onContextItemSelected(MenuItem item) { 470 if (mSelectedAccessPoint == null) { 471 return super.onContextItemSelected(item); 472 } 473 switch (item.getItemId()) { 474 case MENU_ID_CONNECT: { 475 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 476 if (isSavedNetwork) { 477 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 478 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 479 /** Bypass dialog for unsecured networks */ 480 mSelectedAccessPoint.generateOpenNetworkConfig(); 481 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 482 } else { 483 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 484 } 485 return true; 486 } 487 case MENU_ID_FORGET: { 488 forget(); 489 return true; 490 } 491 case MENU_ID_MODIFY: { 492 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 493 return true; 494 } 495 case MENU_ID_WRITE_NFC: 496 showDialog(WRITE_NFC_DIALOG_ID); 497 return true; 498 499 } 500 return super.onContextItemSelected(item); 501 } 502 503 @Override 504 public boolean onPreferenceTreeClick(Preference preference) { 505 // If the preference has a fragment set, open that 506 if (preference.getFragment() != null) { 507 preference.setOnPreferenceClickListener(null); 508 return super.onPreferenceTreeClick(preference); 509 } 510 511 if (preference instanceof LongPressAccessPointPreference) { 512 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 513 if (mSelectedAccessPoint == null) { 514 return false; 515 } 516 if (mSelectedAccessPoint.isActive()) { 517 return super.onPreferenceTreeClick(preference); 518 } 519 /** Bypass dialog and connect to unsecured or previously connected saved networks. */ 520 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 521 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 522 mSelectedAccessPoint.generateOpenNetworkConfig(); 523 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 524 } else if (mSelectedAccessPoint.isSaved() && config != null 525 && config.getNetworkSelectionStatus() != null 526 && config.getNetworkSelectionStatus().getHasEverConnected()) { 527 connect(config, true /* isSavedNetwork */); 528 } else { 529 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 530 } 531 } else if (preference == mAddPreference) { 532 onAddNetworkPressed(); 533 } else { 534 return super.onPreferenceTreeClick(preference); 535 } 536 return true; 537 } 538 539 private void showDialog(AccessPoint accessPoint, int dialogMode) { 540 if (accessPoint != null) { 541 WifiConfiguration config = accessPoint.getConfig(); 542 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 543 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 544 RestrictedLockUtils.getDeviceOwner(getActivity())); 545 return; 546 } 547 } 548 549 if (mDialog != null) { 550 removeDialog(WIFI_DIALOG_ID); 551 mDialog = null; 552 } 553 554 // Save the access point and edit mode 555 mDlgAccessPoint = accessPoint; 556 mDialogMode = dialogMode; 557 558 showDialog(WIFI_DIALOG_ID); 559 } 560 561 @Override 562 public Dialog onCreateDialog(int dialogId) { 563 switch (dialogId) { 564 case WIFI_DIALOG_ID: 565 AccessPoint ap = mDlgAccessPoint; // For manual launch 566 if (ap == null) { // For re-launch from saved state 567 if (mAccessPointSavedState != null) { 568 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 569 // For repeated orientation changes 570 mDlgAccessPoint = ap; 571 // Reset the saved access point data 572 mAccessPointSavedState = null; 573 } 574 } 575 // If it's null, fine, it's for Add Network 576 mSelectedAccessPoint = ap; 577 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 578 /* no hide submit/connect */ false); 579 return mDialog; 580 case WPS_PBC_DIALOG_ID: 581 return new WpsDialog(getActivity(), WpsInfo.PBC); 582 case WPS_PIN_DIALOG_ID: 583 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 584 case WRITE_NFC_DIALOG_ID: 585 if (mSelectedAccessPoint != null) { 586 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 587 getActivity(), 588 mSelectedAccessPoint.getSecurity(), 589 new WifiManagerWrapper(mWifiManager)); 590 } else if (mWifiNfcDialogSavedState != null) { 591 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 592 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 593 } 594 595 return mWifiToNfcDialog; 596 } 597 return super.onCreateDialog(dialogId); 598 } 599 600 @Override 601 public int getDialogMetricsCategory(int dialogId) { 602 switch (dialogId) { 603 case WIFI_DIALOG_ID: 604 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 605 case WPS_PBC_DIALOG_ID: 606 return MetricsEvent.DIALOG_WIFI_PBC; 607 case WPS_PIN_DIALOG_ID: 608 return MetricsEvent.DIALOG_WIFI_PIN; 609 case WRITE_NFC_DIALOG_ID: 610 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 611 default: 612 return 0; 613 } 614 } 615 616 /** 617 * Called to indicate the list of AccessPoints has been updated and 618 * getAccessPoints should be called to get the latest information. 619 */ 620 @Override 621 public void onAccessPointsChanged() { 622 updateAccessPointsDelayed(); 623 } 624 625 /** 626 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 627 * progress bar displayed before starting to modify APs. 628 */ 629 private void updateAccessPointsDelayed() { 630 // Safeguard from some delayed event handling 631 if (getActivity() != null && !isUiRestricted() && mWifiManager.isWifiEnabled()) { 632 setProgressBarVisible(true); 633 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 634 } 635 } 636 637 /** Called when the state of Wifi has changed. */ 638 @Override 639 public void onWifiStateChanged(int state) { 640 if (isUiRestricted()) { 641 return; 642 } 643 644 final int wifiState = mWifiManager.getWifiState(); 645 switch (wifiState) { 646 case WifiManager.WIFI_STATE_ENABLED: 647 updateAccessPointsDelayed(); 648 break; 649 650 case WifiManager.WIFI_STATE_ENABLING: 651 removeConnectedAccessPointPreference(); 652 mAccessPointsPreferenceCategory.removeAll(); 653 addMessagePreference(R.string.wifi_starting); 654 setProgressBarVisible(true); 655 break; 656 657 case WifiManager.WIFI_STATE_DISABLING: 658 removeConnectedAccessPointPreference(); 659 mAccessPointsPreferenceCategory.removeAll(); 660 addMessagePreference(R.string.wifi_stopping); 661 break; 662 663 case WifiManager.WIFI_STATE_DISABLED: 664 setOffMessage(); 665 setProgressBarVisible(false); 666 break; 667 } 668 } 669 670 /** 671 * Called when the connection state of wifi has changed and isConnected 672 * should be called to get the updated state. 673 */ 674 @Override 675 public void onConnectedChanged() { 676 updateAccessPointsDelayed(); 677 changeNextButtonState(mWifiTracker.isConnected()); 678 } 679 680 681 private void updateAccessPointPreferences() { 682 // in case state has changed 683 if (!mWifiManager.isWifiEnabled()) { 684 return; 685 } 686 // AccessPoints are sorted by the WifiTracker 687 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 688 689 boolean hasAvailableAccessPoints = false; 690 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 691 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 692 693 int index = 694 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 695 int numAccessPoints = accessPoints.size(); 696 for (; index < numAccessPoints; index++) { 697 AccessPoint accessPoint = accessPoints.get(index); 698 // Ignore access points that are out of range. 699 if (accessPoint.isReachable()) { 700 String key = accessPoint.getBssid(); 701 if (TextUtils.isEmpty(key)) { 702 key = accessPoint.getSsidStr(); 703 } 704 hasAvailableAccessPoints = true; 705 LongPressAccessPointPreference pref = 706 (LongPressAccessPointPreference) getCachedPreference(key); 707 if (pref != null) { 708 pref.setOrder(index); 709 continue; 710 } 711 LongPressAccessPointPreference preference = 712 createLongPressActionPointPreference(accessPoint); 713 preference.setKey(key); 714 preference.setOrder(index); 715 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 716 && !accessPoint.isSaved() 717 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 718 onPreferenceTreeClick(preference); 719 mOpenSsid = null; 720 } 721 mAccessPointsPreferenceCategory.addPreference(preference); 722 accessPoint.setListener(WifiSettings.this); 723 preference.refresh(); 724 } 725 } 726 removeCachedPrefs(mAccessPointsPreferenceCategory); 727 mAddPreference.setOrder(index); 728 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 729 setConfigureWifiSettingsVisibility(); 730 731 if (!hasAvailableAccessPoints) { 732 setProgressBarVisible(true); 733 Preference pref = new Preference(getPrefContext()); 734 pref.setSelectable(false); 735 pref.setSummary(R.string.wifi_empty_list_wifi_on); 736 pref.setOrder(index++); 737 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 738 mAccessPointsPreferenceCategory.addPreference(pref); 739 } else { 740 // Continuing showing progress bar for an additional delay to overlap with animation 741 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 742 } 743 } 744 745 @NonNull 746 private LongPressAccessPointPreference createLongPressActionPointPreference( 747 AccessPoint accessPoint) { 748 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 749 false, R.drawable.ic_wifi_signal_0, this); 750 } 751 752 /** 753 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 754 * shown. 755 */ 756 private boolean configureConnectedAccessPointPreferenceCategory( 757 List<AccessPoint> accessPoints) { 758 if (accessPoints.size() == 0) { 759 removeConnectedAccessPointPreference(); 760 return false; 761 } 762 763 AccessPoint connectedAp = accessPoints.get(0); 764 if (!connectedAp.isActive()) { 765 removeConnectedAccessPointPreference(); 766 return false; 767 } 768 769 // Is the preference category empty? 770 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 771 addConnectedAccessPointPreference(connectedAp); 772 return true; 773 } 774 775 // Is the previous currently connected SSID different from the new one? 776 if (!((AccessPointPreference) 777 mConnectedAccessPointPreferenceCategory.getPreference(0)) 778 .getAccessPoint().getSsidStr().equals( 779 connectedAp.getSsidStr())) { 780 removeConnectedAccessPointPreference(); 781 addConnectedAccessPointPreference(connectedAp); 782 return true; 783 } 784 785 // Else same AP is connected, simply refresh the connected access point preference 786 // (first and only access point in this category). 787 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 788 .refresh(); 789 return true; 790 } 791 792 /** 793 * Creates a Preference for the given {@link AccessPoint} and adds it to the 794 * {@link #mConnectedAccessPointPreferenceCategory}. 795 */ 796 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 797 String key = connectedAp.getBssid(); 798 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 799 getCachedPreference(key); 800 if (pref == null) { 801 pref = createLongPressActionPointPreference(connectedAp); 802 } 803 804 // Save the state of the current access point in the bundle so that we can restore it 805 // in the Wifi Network Details Fragment 806 pref.getAccessPoint().saveWifiState(pref.getExtras()); 807 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 808 809 pref.refresh(); 810 mConnectedAccessPointPreferenceCategory.addPreference(pref); 811 mConnectedAccessPointPreferenceCategory.setVisible(true); 812 } 813 814 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 815 private void removeConnectedAccessPointPreference() { 816 mConnectedAccessPointPreferenceCategory.removeAll(); 817 mConnectedAccessPointPreferenceCategory.setVisible(false); 818 } 819 820 private void setConfigureWifiSettingsVisibility() { 821 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 822 boolean wifiWakeupEnabled = Settings.Global.getInt( 823 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 824 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 825 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 826 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 827 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 828 if (numSavedNetworks > 0) { 829 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 830 mSavedNetworksPreference.setSummary( 831 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 832 numSavedNetworks, numSavedNetworks)); 833 } else { 834 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 835 } 836 } 837 838 private void setOffMessage() { 839 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 840 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 841 // read the system settings directly. Because when the device is in Airplane mode, even if 842 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 843 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 844 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 845 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 846 : getText(R.string.wifi_scan_notify_text_scanning_off); 847 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 848 @Override 849 public void onClick() { 850 final SettingsActivity activity = (SettingsActivity) getActivity(); 851 activity.startPreferencePanel(WifiSettings.this, 852 ScanningSettings.class.getName(), 853 null, R.string.location_scanning_screen_title, null, null, 0); 854 } 855 }; 856 mStatusMessagePreference.setText(title, description, clickListener); 857 removeConnectedAccessPointPreference(); 858 mAccessPointsPreferenceCategory.removeAll(); 859 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 860 } 861 862 private void addMessagePreference(int messageId) { 863 mStatusMessagePreference.setTitle(messageId); 864 removeConnectedAccessPointPreference(); 865 mAccessPointsPreferenceCategory.removeAll(); 866 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 867 } 868 869 protected void setProgressBarVisible(boolean visible) { 870 if (mProgressHeader != null) { 871 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 872 } 873 } 874 875 /** 876 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 877 * Wifi setup screens, not in usual wifi settings screen. 878 * 879 * @param enabled true when the device is connected to a wifi network. 880 */ 881 private void changeNextButtonState(boolean enabled) { 882 if (mEnableNextOnConnection && hasNextButton()) { 883 getNextButton().setEnabled(enabled); 884 } 885 } 886 887 @Override 888 public void onForget(WifiDialog dialog) { 889 forget(); 890 } 891 892 @Override 893 public void onSubmit(WifiDialog dialog) { 894 if (mDialog != null) { 895 submit(mDialog.getController()); 896 } 897 } 898 899 /* package */ void submit(WifiConfigController configController) { 900 901 final WifiConfiguration config = configController.getConfig(); 902 903 if (config == null) { 904 if (mSelectedAccessPoint != null 905 && mSelectedAccessPoint.isSaved()) { 906 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 907 } 908 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 909 mWifiManager.save(config, mSaveListener); 910 } else { 911 mWifiManager.save(config, mSaveListener); 912 if (mSelectedAccessPoint != null) { // Not an "Add network" 913 connect(config, false /* isSavedNetwork */); 914 } 915 } 916 917 mWifiTracker.resumeScanning(); 918 } 919 920 /* package */ void forget() { 921 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 922 if (!mSelectedAccessPoint.isSaved()) { 923 if (mSelectedAccessPoint.getNetworkInfo() != null && 924 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 925 // Network is active but has no network ID - must be ephemeral. 926 mWifiManager.disableEphemeralNetwork( 927 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 928 } else { 929 // Should not happen, but a monkey seems to trigger it 930 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 931 return; 932 } 933 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 934 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 935 } else { 936 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 937 } 938 939 mWifiTracker.resumeScanning(); 940 941 // We need to rename/replace "Next" button in wifi setup context. 942 changeNextButtonState(false); 943 } 944 945 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 946 // Log subtype if configuration is a saved network. 947 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 948 isSavedNetwork); 949 mWifiManager.connect(config, mConnectListener); 950 } 951 952 protected void connect(final int networkId, boolean isSavedNetwork) { 953 // Log subtype if configuration is a saved network. 954 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 955 isSavedNetwork); 956 mWifiManager.connect(networkId, mConnectListener); 957 } 958 959 /** 960 * Called when "add network" button is pressed. 961 */ 962 /* package */ void onAddNetworkPressed() { 963 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 964 // No exact access point is selected. 965 mSelectedAccessPoint = null; 966 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 967 } 968 969 @Override 970 protected int getHelpResource() { 971 return R.string.help_url_wifi; 972 } 973 974 @Override 975 public void onAccessPointChanged(final AccessPoint accessPoint) { 976 View view = getView(); 977 if (view != null) { 978 view.post(new Runnable() { 979 @Override 980 public void run() { 981 Object tag = accessPoint.getTag(); 982 if (tag != null) { 983 ((LongPressAccessPointPreference) tag).refresh(); 984 } 985 } 986 }); 987 } 988 } 989 990 @Override 991 public void onLevelChanged(AccessPoint accessPoint) { 992 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 993 } 994 995 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 996 new BaseSearchIndexProvider() { 997 @Override 998 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 999 final List<SearchIndexableRaw> result = new ArrayList<>(); 1000 final Resources res = context.getResources(); 1001 1002 // Add fragment title 1003 SearchIndexableRaw data = new SearchIndexableRaw(context); 1004 data.title = res.getString(R.string.wifi_settings); 1005 data.screenTitle = res.getString(R.string.wifi_settings); 1006 data.keywords = res.getString(R.string.keywords_wifi); 1007 data.key = DATA_KEY_REFERENCE; 1008 result.add(data); 1009 1010 // Add saved Wi-Fi access points 1011 final List<AccessPoint> accessPoints = 1012 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1013 for (AccessPoint accessPoint : accessPoints) { 1014 data = new SearchIndexableRaw(context); 1015 data.title = accessPoint.getSsidStr(); 1016 data.screenTitle = res.getString(R.string.wifi_settings); 1017 data.enabled = enabled; 1018 result.add(data); 1019 } 1020 1021 return result; 1022 } 1023 }; 1024 1025 /** 1026 * Returns true if the config is not editable through Settings. 1027 * @param context Context of caller 1028 * @param config The WiFi config. 1029 * @return true if the config is not editable through Settings. 1030 */ 1031 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1032 return !canModifyNetwork(context, config); 1033 } 1034 1035 /** 1036 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1037 * TODO: refactor to have only one method. 1038 * @param context Context of caller 1039 * @param config The WiFi config. 1040 * @return true if Settings can modify the config. 1041 */ 1042 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1043 if (config == null) { 1044 return true; 1045 } 1046 1047 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1048 Context.DEVICE_POLICY_SERVICE); 1049 1050 // Check if device has DPM capability. If it has and dpm is still null, then we 1051 // treat this case with suspicion and bail out. 1052 final PackageManager pm = context.getPackageManager(); 1053 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1054 return false; 1055 } 1056 1057 boolean isConfigEligibleForLockdown = false; 1058 if (dpm != null) { 1059 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1060 if (deviceOwner != null) { 1061 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1062 try { 1063 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1064 deviceOwnerUserId); 1065 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1066 } catch (NameNotFoundException e) { 1067 // don't care 1068 } 1069 } 1070 } 1071 if (!isConfigEligibleForLockdown) { 1072 return true; 1073 } 1074 1075 final ContentResolver resolver = context.getContentResolver(); 1076 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1077 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1078 return !isLockdownFeatureEnabled; 1079 } 1080 1081 private static class SummaryProvider 1082 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1083 1084 private final Context mContext; 1085 private final SummaryLoader mSummaryLoader; 1086 1087 @VisibleForTesting 1088 WifiSummaryUpdater mSummaryHelper; 1089 1090 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1091 mContext = context; 1092 mSummaryLoader = summaryLoader; 1093 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1094 } 1095 1096 1097 @Override 1098 public void setListening(boolean listening) { 1099 mSummaryHelper.register(listening); 1100 } 1101 1102 @Override 1103 public void onSummaryChanged(String summary) { 1104 mSummaryLoader.setSummary(this, summary); 1105 } 1106 } 1107 1108 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1109 = new SummaryLoader.SummaryProviderFactory() { 1110 @Override 1111 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1112 SummaryLoader summaryLoader) { 1113 return new SummaryProvider(activity, summaryLoader); 1114 } 1115 }; 1116} 1117