WifiSettings.java revision f35a55dee468be819b924b1f8cfb575d5f74c4a9
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 android.annotation.NonNull; 20import android.app.Activity; 21import android.app.Dialog; 22import android.app.admin.DevicePolicyManager; 23import android.content.ComponentName; 24import android.content.ContentResolver; 25import android.content.Context; 26import android.content.Intent; 27import android.content.pm.PackageManager; 28import android.content.pm.PackageManager.NameNotFoundException; 29import android.content.res.Resources; 30import android.net.ConnectivityManager; 31import android.net.NetworkInfo; 32import android.net.NetworkInfo.State; 33import android.net.wifi.WifiConfiguration; 34import android.net.wifi.WifiManager; 35import android.net.wifi.WpsInfo; 36import android.nfc.NfcAdapter; 37import android.os.Bundle; 38import android.os.HandlerThread; 39import android.os.Process; 40import android.provider.Settings; 41import android.support.annotation.VisibleForTesting; 42import android.support.v7.preference.Preference; 43import android.support.v7.preference.PreferenceCategory; 44import android.support.v7.preference.PreferenceManager; 45import android.text.TextUtils; 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; 73 74import java.util.ArrayList; 75import java.util.List; 76 77import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 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 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 protected WifiManager mWifiManager; 118 private WifiManager.ActionListener mConnectListener; 119 private WifiManager.ActionListener mSaveListener; 120 private WifiManager.ActionListener mForgetListener; 121 122 private WifiEnabler mWifiEnabler; 123 // An access point being editted is stored here. 124 private AccessPoint mSelectedAccessPoint; 125 126 private WifiDialog mDialog; 127 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 128 129 private ProgressBar mProgressHeader; 130 131 // this boolean extra specifies whether to disable the Next button when not connected. Used by 132 // account creation outside of setup wizard. 133 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 134 // This string extra specifies a network to open the connect dialog on, so the user can enter 135 // network credentials. This is used by quick settings for secured networks. 136 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 137 138 // should Next button only be enabled when we have a connection? 139 private boolean mEnableNextOnConnection; 140 141 // should see all networks instead of collapsing networks and showing mSeeAllNetworksPreference. 142 private boolean mSeeAllNetworks; 143 private static final int NETWORKS_TO_INITIALLY_SHOW = 5; 144 145 // Save the dialog details 146 private int mDialogMode; 147 private AccessPoint mDlgAccessPoint; 148 private Bundle mAccessPointSavedState; 149 private Bundle mWifiNfcDialogSavedState; 150 151 private WifiTracker mWifiTracker; 152 private String mOpenSsid; 153 154 private HandlerThread mBgThread; 155 156 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 157 158 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 159 private PreferenceCategory mAccessPointsPreferenceCategory; 160 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 161 private Preference mAddPreference; 162 private Preference mSeeAllNetworksPreference; 163 private Preference mConfigureWifiSettingsPreference; 164 private Preference mSavedNetworksPreference; 165 private LinkablePreference mStatusMessagePreference; 166 167 // For Search 168 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 169 170 /* End of "used in Wifi Setup context" */ 171 172 public WifiSettings() { 173 super(DISALLOW_CONFIG_WIFI); 174 } 175 176 @Override 177 public void onViewCreated(View view, Bundle savedInstanceState) { 178 super.onViewCreated(view, savedInstanceState); 179 final Activity activity = getActivity(); 180 if (activity != null) { 181 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 182 setProgressBarVisible(false); 183 } 184 } 185 186 @Override 187 public void onCreate(Bundle icicle) { 188 super.onCreate(icicle); 189 190 getPreferenceManager().setPreferenceComparisonCallback( 191 new PreferenceManager.SimplePreferenceComparisonCallback()); 192 addPreferencesFromResource(R.xml.wifi_settings); 193 194 mConnectedAccessPointPreferenceCategory = 195 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 196 197 mAccessPointsPreferenceCategory = 198 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 199 mAdditionalSettingsPreferenceCategory = 200 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 201 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 202 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 203 204 if (isUiRestricted()) { 205 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 206 } 207 208 Context prefContext = getPrefContext(); 209 mAddPreference = new Preference(prefContext); 210 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 211 mAddPreference.setTitle(R.string.wifi_add_network); 212 mSeeAllNetworksPreference = new Preference(prefContext); 213 mSeeAllNetworksPreference.setIcon(R.drawable.ic_arrow_down_24dp); 214 mSeeAllNetworksPreference.setTitle(R.string.wifi_see_all_networks_button_title); 215 mSeeAllNetworks = false; 216 mStatusMessagePreference = new LinkablePreference(prefContext); 217 218 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 219 220 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 221 mBgThread.start(); 222 } 223 224 @Override 225 public void onDestroy() { 226 mBgThread.quit(); 227 super.onDestroy(); 228 } 229 230 @Override 231 public void onActivityCreated(Bundle savedInstanceState) { 232 super.onActivityCreated(savedInstanceState); 233 234 mWifiTracker = 235 new WifiTracker(getActivity(), this, mBgThread.getLooper(), true, true, false); 236 mWifiManager = mWifiTracker.getManager(); 237 238 mConnectListener = new WifiManager.ActionListener() { 239 @Override 240 public void onSuccess() { 241 } 242 @Override 243 public void onFailure(int reason) { 244 Activity activity = getActivity(); 245 if (activity != null) { 246 Toast.makeText(activity, 247 R.string.wifi_failed_connect_message, 248 Toast.LENGTH_SHORT).show(); 249 } 250 } 251 }; 252 253 mSaveListener = new WifiManager.ActionListener() { 254 @Override 255 public void onSuccess() { 256 } 257 @Override 258 public void onFailure(int reason) { 259 Activity activity = getActivity(); 260 if (activity != null) { 261 Toast.makeText(activity, 262 R.string.wifi_failed_save_message, 263 Toast.LENGTH_SHORT).show(); 264 } 265 } 266 }; 267 268 mForgetListener = new WifiManager.ActionListener() { 269 @Override 270 public void onSuccess() { 271 } 272 @Override 273 public void onFailure(int reason) { 274 Activity activity = getActivity(); 275 if (activity != null) { 276 Toast.makeText(activity, 277 R.string.wifi_failed_forget_message, 278 Toast.LENGTH_SHORT).show(); 279 } 280 } 281 }; 282 283 if (savedInstanceState != null) { 284 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 285 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 286 mAccessPointSavedState = 287 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 288 } 289 290 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 291 mWifiNfcDialogSavedState = 292 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 293 } 294 } 295 296 // if we're supposed to enable/disable the Next button based on our current connection 297 // state, start it off in the right state 298 Intent intent = getActivity().getIntent(); 299 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 300 301 if (mEnableNextOnConnection) { 302 if (hasNextButton()) { 303 final ConnectivityManager connectivity = (ConnectivityManager) 304 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 305 if (connectivity != null) { 306 NetworkInfo info = connectivity.getNetworkInfo( 307 ConnectivityManager.TYPE_WIFI); 308 changeNextButtonState(info.isConnected()); 309 } 310 } 311 } 312 313 registerForContextMenu(getListView()); 314 setHasOptionsMenu(true); 315 316 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 317 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 318 onAccessPointsChanged(); 319 } 320 } 321 322 @Override 323 public void onDestroyView() { 324 super.onDestroyView(); 325 326 if (mWifiEnabler != null) { 327 mWifiEnabler.teardownSwitchController(); 328 } 329 } 330 331 @Override 332 public void onStart() { 333 super.onStart(); 334 335 // On/off switch is hidden for Setup Wizard (returns null) 336 mWifiEnabler = createWifiEnabler(); 337 } 338 339 /** 340 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 341 */ 342 private WifiEnabler createWifiEnabler() { 343 final SettingsActivity activity = (SettingsActivity) getActivity(); 344 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 345 mMetricsFeatureProvider); 346 } 347 348 @Override 349 public void onResume() { 350 final Activity activity = getActivity(); 351 super.onResume(); 352 if (mWifiEnabler != null) { 353 mWifiEnabler.resume(activity); 354 } 355 356 mWifiTracker.startTracking(); 357 activity.invalidateOptionsMenu(); 358 } 359 360 @Override 361 public void onPause() { 362 super.onPause(); 363 if (mWifiEnabler != null) { 364 mWifiEnabler.pause(); 365 } 366 367 mWifiTracker.stopTracking(); 368 } 369 370 @Override 371 public int getMetricsCategory() { 372 return MetricsEvent.WIFI; 373 } 374 375 @Override 376 public void onSaveInstanceState(Bundle outState) { 377 super.onSaveInstanceState(outState); 378 379 // If the dialog is showing, save its state. 380 if (mDialog != null && mDialog.isShowing()) { 381 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 382 if (mDlgAccessPoint != null) { 383 mAccessPointSavedState = new Bundle(); 384 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 385 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 386 } 387 } 388 389 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 390 Bundle savedState = new Bundle(); 391 mWifiToNfcDialog.saveState(savedState); 392 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 393 } 394 } 395 396 @Override 397 public boolean onOptionsItemSelected(MenuItem item) { 398 // If the user is not allowed to configure wifi, do not handle menu selections. 399 if (isUiRestricted()) return false; 400 401 switch (item.getItemId()) { 402 case MENU_ID_WPS_PBC: 403 showDialog(WPS_PBC_DIALOG_ID); 404 return true; 405 /* 406 case MENU_ID_P2P: 407 if (getActivity() instanceof SettingsActivity) { 408 ((SettingsActivity) getActivity()).startPreferencePanel( 409 WifiP2pSettings.class.getCanonicalName(), 410 null, 411 R.string.wifi_p2p_settings_title, null, 412 this, 0); 413 } else { 414 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 415 R.string.wifi_p2p_settings_title, -1, null); 416 } 417 return true; 418 */ 419 case MENU_ID_WPS_PIN: 420 showDialog(WPS_PIN_DIALOG_ID); 421 return true; 422 } 423 return super.onOptionsItemSelected(item); 424 } 425 426 @Override 427 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 428 Preference preference = (Preference) view.getTag(); 429 430 if (preference instanceof LongPressAccessPointPreference) { 431 mSelectedAccessPoint = 432 ((LongPressAccessPointPreference) preference).getAccessPoint(); 433 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 434 if (mSelectedAccessPoint.isConnectable()) { 435 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 436 } 437 438 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 439 // Some configs are ineditable 440 if (isEditabilityLockedDown(getActivity(), config)) { 441 return; 442 } 443 444 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 445 // Allow forgetting a network if either the network is saved or ephemerally 446 // connected. (In the latter case, "forget" blacklists the network so it won't 447 // be used again, ephemerally). 448 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 449 } 450 if (mSelectedAccessPoint.isSaved()) { 451 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 452 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 453 if (nfcAdapter != null && nfcAdapter.isEnabled() && 454 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 455 // Only allow writing of NFC tags for password-protected networks. 456 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 457 } 458 } 459 } 460 } 461 462 @Override 463 public boolean onContextItemSelected(MenuItem item) { 464 if (mSelectedAccessPoint == null) { 465 return super.onContextItemSelected(item); 466 } 467 switch (item.getItemId()) { 468 case MENU_ID_CONNECT: { 469 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 470 if (isSavedNetwork) { 471 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 472 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 473 /** Bypass dialog for unsecured networks */ 474 mSelectedAccessPoint.generateOpenNetworkConfig(); 475 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 476 } else { 477 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 478 } 479 return true; 480 } 481 case MENU_ID_FORGET: { 482 forget(); 483 return true; 484 } 485 case MENU_ID_MODIFY: { 486 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 487 return true; 488 } 489 case MENU_ID_WRITE_NFC: 490 showDialog(WRITE_NFC_DIALOG_ID); 491 return true; 492 493 } 494 return super.onContextItemSelected(item); 495 } 496 497 @Override 498 public boolean onPreferenceTreeClick(Preference preference) { 499 // If the preference has a fragment set, open that 500 if (preference.getFragment() != null) { 501 preference.setOnPreferenceClickListener(null); 502 return super.onPreferenceTreeClick(preference); 503 } 504 505 if (preference instanceof LongPressAccessPointPreference) { 506 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 507 if (mSelectedAccessPoint == null) { 508 return false; 509 } 510 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 511 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 512 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 513 mSelectedAccessPoint.generateOpenNetworkConfig(); 514 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 515 } else if (mSelectedAccessPoint.isSaved()) { 516 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 517 } else { 518 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 519 } 520 } else if (preference == mAddPreference) { 521 onAddNetworkPressed(); 522 } else if (preference == mSeeAllNetworksPreference) { 523 mSeeAllNetworks = true; 524 onAccessPointsChanged(); 525 } else { 526 return super.onPreferenceTreeClick(preference); 527 } 528 return true; 529 } 530 531 private void showDialog(AccessPoint accessPoint, int dialogMode) { 532 if (accessPoint != null) { 533 WifiConfiguration config = accessPoint.getConfig(); 534 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 535 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 536 RestrictedLockUtils.getDeviceOwner(getActivity())); 537 return; 538 } 539 } 540 541 if (mDialog != null) { 542 removeDialog(WIFI_DIALOG_ID); 543 mDialog = null; 544 } 545 546 // Save the access point and edit mode 547 mDlgAccessPoint = accessPoint; 548 mDialogMode = dialogMode; 549 550 showDialog(WIFI_DIALOG_ID); 551 } 552 553 @Override 554 public Dialog onCreateDialog(int dialogId) { 555 switch (dialogId) { 556 case WIFI_DIALOG_ID: 557 AccessPoint ap = mDlgAccessPoint; // For manual launch 558 if (ap == null) { // For re-launch from saved state 559 if (mAccessPointSavedState != null) { 560 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 561 // For repeated orientation changes 562 mDlgAccessPoint = ap; 563 // Reset the saved access point data 564 mAccessPointSavedState = null; 565 } 566 } 567 // If it's null, fine, it's for Add Network 568 mSelectedAccessPoint = ap; 569 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 570 /* no hide submit/connect */ false); 571 return mDialog; 572 case WPS_PBC_DIALOG_ID: 573 return new WpsDialog(getActivity(), WpsInfo.PBC); 574 case WPS_PIN_DIALOG_ID: 575 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 576 case WRITE_NFC_DIALOG_ID: 577 if (mSelectedAccessPoint != null) { 578 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 579 getActivity(), mSelectedAccessPoint.getConfig().networkId, 580 mSelectedAccessPoint.getSecurity(), 581 mWifiManager); 582 } else if (mWifiNfcDialogSavedState != null) { 583 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 584 getActivity(), mWifiNfcDialogSavedState, mWifiManager); 585 } 586 587 return mWifiToNfcDialog; 588 } 589 return super.onCreateDialog(dialogId); 590 } 591 592 @Override 593 public int getDialogMetricsCategory(int dialogId) { 594 switch (dialogId) { 595 case WIFI_DIALOG_ID: 596 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 597 case WPS_PBC_DIALOG_ID: 598 return MetricsEvent.DIALOG_WIFI_PBC; 599 case WPS_PIN_DIALOG_ID: 600 return MetricsEvent.DIALOG_WIFI_PIN; 601 case WRITE_NFC_DIALOG_ID: 602 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 603 default: 604 return 0; 605 } 606 } 607 608 /** 609 * Shows the latest access points available with supplemental information like 610 * the strength of network and the security for it. 611 */ 612 @Override 613 public void onAccessPointsChanged() { 614 // Safeguard from some delayed event handling 615 if (getActivity() == null) return; 616 final int wifiState = mWifiManager.getWifiState(); 617 if (isUiRestricted()) { 618 removeConnectedAccessPointPreference(); 619 mAccessPointsPreferenceCategory.removeAll(); 620 if (!isUiRestrictedByOnlyAdmin()) { 621 if (wifiState == WifiManager.WIFI_AP_STATE_DISABLED) { 622 setOffMessage(); 623 } else { 624 addMessagePreference(R.string.wifi_empty_list_user_restricted); 625 } 626 } 627 return; 628 } 629 630 switch (wifiState) { 631 case WifiManager.WIFI_STATE_ENABLED: 632 setProgressBarVisible(true); 633 // Have the progress bar displayed before starting to modify APs 634 getView().postDelayed(() -> { 635 updateAccessPointPreferences(); 636 }, 300 /* delay milliseconds */); 637 break; 638 639 case WifiManager.WIFI_STATE_ENABLING: 640 removeConnectedAccessPointPreference(); 641 mAccessPointsPreferenceCategory.removeAll(); 642 setProgressBarVisible(true); 643 break; 644 645 case WifiManager.WIFI_STATE_DISABLING: 646 addMessagePreference(R.string.wifi_stopping); 647 setProgressBarVisible(true); 648 break; 649 650 case WifiManager.WIFI_STATE_DISABLED: 651 setOffMessage(); 652 setConfigureWifiSettingsVisibility(); 653 setProgressBarVisible(false); 654 break; 655 } 656 } 657 658 private void updateAccessPointPreferences() { 659 // AccessPoints are sorted by the WifiTracker 660 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 661 662 boolean hasAvailableAccessPoints = false; 663 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 664 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 665 666 int index = 667 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 668 boolean fewerNetworksThanLimit = 669 accessPoints.size() <= index + NETWORKS_TO_INITIALLY_SHOW; 670 int numAccessPointsToShow = mSeeAllNetworks || fewerNetworksThanLimit 671 ? accessPoints.size() : index + NETWORKS_TO_INITIALLY_SHOW; 672 673 for (; index < numAccessPointsToShow; index++) { 674 AccessPoint accessPoint = accessPoints.get(index); 675 // Ignore access points that are out of range. 676 if (accessPoint.isReachable()) { 677 String key = accessPoint.getBssid(); 678 if (TextUtils.isEmpty(key)) { 679 key = accessPoint.getSsidStr(); 680 } 681 hasAvailableAccessPoints = true; 682 LongPressAccessPointPreference pref = 683 (LongPressAccessPointPreference) getCachedPreference(key); 684 if (pref != null) { 685 pref.setOrder(index); 686 continue; 687 } 688 LongPressAccessPointPreference preference = 689 createLongPressActionPointPreference(accessPoint); 690 preference.setKey(key); 691 preference.setOrder(index); 692 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 693 && !accessPoint.isSaved() 694 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 695 onPreferenceTreeClick(preference); 696 mOpenSsid = null; 697 } 698 mAccessPointsPreferenceCategory.addPreference(preference); 699 accessPoint.setListener(WifiSettings.this); 700 preference.refresh(); 701 } 702 } 703 removeCachedPrefs(mAccessPointsPreferenceCategory); 704 if (mSeeAllNetworks || fewerNetworksThanLimit) { 705 mAccessPointsPreferenceCategory.removePreference(mSeeAllNetworksPreference); 706 mAddPreference.setOrder(index); 707 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 708 } else { 709 mAccessPointsPreferenceCategory.removePreference(mAddPreference); 710 mSeeAllNetworksPreference.setOrder(index); 711 mAccessPointsPreferenceCategory.addPreference(mSeeAllNetworksPreference); 712 } 713 setConfigureWifiSettingsVisibility(); 714 715 if (!hasAvailableAccessPoints) { 716 setProgressBarVisible(true); 717 Preference pref = new Preference(getPrefContext()); 718 pref.setSelectable(false); 719 pref.setSummary(R.string.wifi_empty_list_wifi_on); 720 pref.setOrder(index++); 721 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 722 mAccessPointsPreferenceCategory.addPreference(pref); 723 } else { 724 // Continuing showing progress bar for an additional delay to overlap with animation 725 getView().postDelayed(() -> { 726 setProgressBarVisible(false); 727 }, 1700 /* delay millis */); 728 } 729 } 730 731 @NonNull 732 private LongPressAccessPointPreference createLongPressActionPointPreference( 733 AccessPoint accessPoint) { 734 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 735 false, R.drawable.ic_wifi_signal_0, this); 736 } 737 738 /** 739 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 740 * shown. 741 */ 742 private boolean configureConnectedAccessPointPreferenceCategory( 743 List<AccessPoint> accessPoints) { 744 if (accessPoints.size() == 0) { 745 removeConnectedAccessPointPreference(); 746 return false; 747 } 748 749 AccessPoint connectedAp = accessPoints.get(0); 750 if (!connectedAp.isActive()) { 751 removeConnectedAccessPointPreference(); 752 return false; 753 } 754 755 // Is the preference category empty? 756 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 757 addConnectedAccessPointPreference(connectedAp); 758 return true; 759 } 760 761 // Is the previous currently connected SSID different from the new one? 762 if (!((AccessPointPreference) 763 mConnectedAccessPointPreferenceCategory.getPreference(0)) 764 .getAccessPoint().getSsidStr().equals( 765 connectedAp.getSsidStr())) { 766 removeConnectedAccessPointPreference(); 767 addConnectedAccessPointPreference(connectedAp); 768 return true; 769 } 770 771 // Else same AP is connected, simply refresh the connected access point preference 772 // (first and only access point in this category). 773 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 774 .refresh(); 775 return true; 776 } 777 778 /** 779 * Creates a Preference for the given {@link AccessPoint} and adds it to the 780 * {@link #mConnectedAccessPointPreferenceCategory}. 781 */ 782 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 783 String key = connectedAp.getBssid(); 784 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 785 getCachedPreference(key); 786 if (pref == null) { 787 pref = createLongPressActionPointPreference(connectedAp); 788 } 789 790 // Save the state of the current access point in the bundle so that we can restore it 791 // in the Wifi Network Details Fragment 792 pref.getAccessPoint().saveWifiState(pref.getExtras()); 793 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 794 795 pref.refresh(); 796 mConnectedAccessPointPreferenceCategory.addPreference(pref); 797 mConnectedAccessPointPreferenceCategory.setVisible(true); 798 } 799 800 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 801 private void removeConnectedAccessPointPreference() { 802 mConnectedAccessPointPreferenceCategory.removeAll(); 803 mConnectedAccessPointPreferenceCategory.setVisible(false); 804 } 805 806 private void setConfigureWifiSettingsVisibility() { 807 if (isUiRestricted()) { 808 mAdditionalSettingsPreferenceCategory.removeAll(); 809 return; 810 } 811 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 812 if (mWifiTracker.doSavedNetworksExist()) { 813 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 814 } else { 815 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 816 } 817 } 818 819 private void setOffMessage() { 820 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 821 822 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 823 // read the system settings directly. Because when the device is in Airplane mode, even if 824 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 825 final ContentResolver resolver = getActivity().getContentResolver(); 826 final boolean wifiScanningMode = !isUiRestricted() && Settings.Global.getInt( 827 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 828 829 if (!wifiScanningMode) { 830 // Show only the brief text if the user is not allowed to configure scanning settings, 831 // or the scanning mode has been turned off. 832 mStatusMessagePreference.setTitle(briefText); 833 } else { 834 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 835 @Override 836 public void onClick() { 837 final SettingsActivity activity = (SettingsActivity) getActivity(); 838 activity.startPreferencePanel(WifiSettings.this, 839 ScanningSettings.class.getName(), 840 null, R.string.location_scanning_screen_title, null, null, 0); 841 } 842 }; 843 mStatusMessagePreference.setText( 844 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 845 } 846 removeConnectedAccessPointPreference(); 847 mAccessPointsPreferenceCategory.removeAll(); 848 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 849 } 850 851 private void addMessagePreference(int messageId) { 852 mStatusMessagePreference.setTitle(messageId); 853 removeConnectedAccessPointPreference(); 854 mAccessPointsPreferenceCategory.removeAll(); 855 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 856 } 857 858 protected void setProgressBarVisible(boolean visible) { 859 if (mProgressHeader != null) { 860 mProgressHeader.setVisibility( 861 visible && !isUiRestricted() ? View.VISIBLE : View.INVISIBLE); 862 } 863 } 864 865 @Override 866 public void onWifiStateChanged(int state) { 867 switch (state) { 868 case WifiManager.WIFI_STATE_ENABLING: 869 addMessagePreference(R.string.wifi_starting); 870 setProgressBarVisible(true); 871 break; 872 873 case WifiManager.WIFI_STATE_DISABLED: 874 setOffMessage(); 875 setProgressBarVisible(false); 876 break; 877 } 878 } 879 880 @Override 881 public void onConnectedChanged() { 882 onAccessPointsChanged(); 883 changeNextButtonState(mWifiTracker.isConnected()); 884 } 885 886 /** 887 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 888 * Wifi setup screens, not in usual wifi settings screen. 889 * 890 * @param enabled true when the device is connected to a wifi network. 891 */ 892 private void changeNextButtonState(boolean enabled) { 893 if (mEnableNextOnConnection && hasNextButton()) { 894 getNextButton().setEnabled(enabled); 895 } 896 } 897 898 @Override 899 public void onForget(WifiDialog dialog) { 900 forget(); 901 } 902 903 @Override 904 public void onSubmit(WifiDialog dialog) { 905 if (mDialog != null) { 906 submit(mDialog.getController()); 907 } 908 } 909 910 /* package */ void submit(WifiConfigController configController) { 911 912 final WifiConfiguration config = configController.getConfig(); 913 914 if (config == null) { 915 if (mSelectedAccessPoint != null 916 && mSelectedAccessPoint.isSaved()) { 917 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 918 } 919 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 920 mWifiManager.save(config, mSaveListener); 921 } else { 922 mWifiManager.save(config, mSaveListener); 923 if (mSelectedAccessPoint != null) { // Not an "Add network" 924 connect(config, false /* isSavedNetwork */); 925 } 926 } 927 928 mWifiTracker.resumeScanning(); 929 } 930 931 /* package */ void forget() { 932 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 933 if (!mSelectedAccessPoint.isSaved()) { 934 if (mSelectedAccessPoint.getNetworkInfo() != null && 935 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 936 // Network is active but has no network ID - must be ephemeral. 937 mWifiManager.disableEphemeralNetwork( 938 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 939 } else { 940 // Should not happen, but a monkey seems to trigger it 941 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 942 return; 943 } 944 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 945 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 946 } else { 947 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 948 } 949 950 mWifiTracker.resumeScanning(); 951 952 // We need to rename/replace "Next" button in wifi setup context. 953 changeNextButtonState(false); 954 } 955 956 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 957 // Log subtype if configuration is a saved network. 958 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 959 isSavedNetwork); 960 mWifiManager.connect(config, mConnectListener); 961 } 962 963 protected void connect(final int networkId, boolean isSavedNetwork) { 964 // Log subtype if configuration is a saved network. 965 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 966 isSavedNetwork); 967 mWifiManager.connect(networkId, mConnectListener); 968 } 969 970 /** 971 * Called when "add network" button is pressed. 972 */ 973 /* package */ void onAddNetworkPressed() { 974 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 975 // No exact access point is selected. 976 mSelectedAccessPoint = null; 977 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 978 } 979 980 @Override 981 protected int getHelpResource() { 982 return R.string.help_url_wifi; 983 } 984 985 @Override 986 public void onAccessPointChanged(final AccessPoint accessPoint) { 987 View view = getView(); 988 if (view != null) { 989 view.post(new Runnable() { 990 @Override 991 public void run() { 992 Object tag = accessPoint.getTag(); 993 if (tag != null) { 994 ((LongPressAccessPointPreference) tag).refresh(); 995 } 996 } 997 }); 998 } 999 } 1000 1001 @Override 1002 public void onLevelChanged(AccessPoint accessPoint) { 1003 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1004 } 1005 1006 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1007 new BaseSearchIndexProvider() { 1008 @Override 1009 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1010 final List<SearchIndexableRaw> result = new ArrayList<>(); 1011 final Resources res = context.getResources(); 1012 1013 // Add fragment title 1014 SearchIndexableRaw data = new SearchIndexableRaw(context); 1015 data.title = res.getString(R.string.wifi_settings); 1016 data.screenTitle = res.getString(R.string.wifi_settings); 1017 data.keywords = res.getString(R.string.keywords_wifi); 1018 data.key = DATA_KEY_REFERENCE; 1019 result.add(data); 1020 1021 // Add saved Wi-Fi access points 1022 final List<AccessPoint> accessPoints = 1023 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1024 for (AccessPoint accessPoint : accessPoints) { 1025 data = new SearchIndexableRaw(context); 1026 data.title = accessPoint.getSsidStr(); 1027 data.screenTitle = res.getString(R.string.wifi_settings); 1028 data.enabled = enabled; 1029 result.add(data); 1030 } 1031 1032 return result; 1033 } 1034 }; 1035 1036 /** 1037 * Returns true if the config is not editable through Settings. 1038 * @param context Context of caller 1039 * @param config The WiFi config. 1040 * @return true if the config is not editable through Settings. 1041 */ 1042 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1043 return !canModifyNetwork(context, config); 1044 } 1045 1046 /** 1047 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1048 * TODO: refactor to have only one method. 1049 * @param context Context of caller 1050 * @param config The WiFi config. 1051 * @return true if Settings can modify the config. 1052 */ 1053 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1054 if (config == null) { 1055 return true; 1056 } 1057 1058 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1059 Context.DEVICE_POLICY_SERVICE); 1060 1061 // Check if device has DPM capability. If it has and dpm is still null, then we 1062 // treat this case with suspicion and bail out. 1063 final PackageManager pm = context.getPackageManager(); 1064 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1065 return false; 1066 } 1067 1068 boolean isConfigEligibleForLockdown = false; 1069 if (dpm != null) { 1070 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1071 if (deviceOwner != null) { 1072 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1073 try { 1074 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1075 deviceOwnerUserId); 1076 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1077 } catch (NameNotFoundException e) { 1078 // don't care 1079 } 1080 } 1081 } 1082 if (!isConfigEligibleForLockdown) { 1083 return true; 1084 } 1085 1086 final ContentResolver resolver = context.getContentResolver(); 1087 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1088 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1089 return !isLockdownFeatureEnabled; 1090 } 1091 1092 private static class SummaryProvider 1093 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1094 1095 private final Context mContext; 1096 private final SummaryLoader mSummaryLoader; 1097 1098 @VisibleForTesting 1099 WifiSummaryUpdater mSummaryHelper; 1100 1101 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1102 mContext = context; 1103 mSummaryLoader = summaryLoader; 1104 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1105 } 1106 1107 1108 @Override 1109 public void setListening(boolean listening) { 1110 mSummaryHelper.register(listening); 1111 } 1112 1113 @Override 1114 public void onSummaryChanged(String summary) { 1115 mSummaryLoader.setSummary(this, summary); 1116 } 1117 } 1118 1119 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1120 = new SummaryLoader.SummaryProviderFactory() { 1121 @Override 1122 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1123 SummaryLoader summaryLoader) { 1124 return new SummaryProvider(activity, summaryLoader); 1125 } 1126 }; 1127} 1128