WifiSettings.java revision 738695e5e81b2436b28f2985694ed279e726ed57
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.support.v7.preference.PreferenceViewHolder; 46import android.text.TextUtils; 47import android.util.Log; 48import android.view.ContextMenu; 49import android.view.ContextMenu.ContextMenuInfo; 50import android.view.Menu; 51import android.view.MenuInflater; 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.settingslib.RestrictedLockUtils; 70import com.android.settingslib.wifi.AccessPoint; 71import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 72import com.android.settingslib.wifi.AccessPointPreference; 73import com.android.settingslib.wifi.WifiTracker; 74 75import java.util.ArrayList; 76import java.util.List; 77 78import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 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_SCAN = Menu.FIRST + 5; 97 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 98 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 99 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 100 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 101 102 public static final int WIFI_DIALOG_ID = 1; 103 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 104 private static final int WPS_PIN_DIALOG_ID = 3; 105 private static final int WRITE_NFC_DIALOG_ID = 6; 106 107 // Instance state keys 108 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 109 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 110 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 111 112 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 113 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 114 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 115 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 116 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 117 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 118 119 protected WifiManager mWifiManager; 120 private WifiManager.ActionListener mConnectListener; 121 private WifiManager.ActionListener mSaveListener; 122 private WifiManager.ActionListener mForgetListener; 123 124 private WifiEnabler mWifiEnabler; 125 // An access point being editted is stored here. 126 private AccessPoint mSelectedAccessPoint; 127 128 private WifiDialog mDialog; 129 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 130 131 private ProgressBar mProgressHeader; 132 133 // this boolean extra specifies whether to disable the Next button when not connected. Used by 134 // account creation outside of setup wizard. 135 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 136 // This string extra specifies a network to open the connect dialog on, so the user can enter 137 // network credentials. This is used by quick settings for secured networks. 138 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 139 140 // should Next button only be enabled when we have a connection? 141 private boolean mEnableNextOnConnection; 142 143 // should see all networks instead of collapsing networks and showing mSeeAllNetworksPreference. 144 private boolean mSeeAllNetworks; 145 private static final int NETWORKS_TO_INITIALLY_SHOW = 5; 146 147 // Save the dialog details 148 private int mDialogMode; 149 private AccessPoint mDlgAccessPoint; 150 private Bundle mAccessPointSavedState; 151 private Bundle mWifiNfcDialogSavedState; 152 153 private WifiTracker mWifiTracker; 154 private String mOpenSsid; 155 156 private HandlerThread mBgThread; 157 158 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 159 160 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 161 private PreferenceCategory mAccessPointsPreferenceCategory; 162 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 163 private Preference mAddPreference; 164 private Preference mSeeAllNetworksPreference; 165 private Preference mConfigureWifiSettingsPreference; 166 private Preference mSavedNetworksPreference; 167 private LinkablePreference mStatusMessagePreference; 168 169 private MenuItem mScanMenuItem; 170 171 /* End of "used in Wifi Setup context" */ 172 173 public WifiSettings() { 174 super(DISALLOW_CONFIG_WIFI); 175 } 176 177 @Override 178 public void onViewCreated(View view, Bundle savedInstanceState) { 179 super.onViewCreated(view, savedInstanceState); 180 final Activity activity = getActivity(); 181 if (activity != null) { 182 if (!isUiRestricted()) { 183 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 184 } 185 } 186 } 187 188 @Override 189 public void onCreate(Bundle icicle) { 190 super.onCreate(icicle); 191 getPreferenceManager().setPreferenceComparisonCallback( 192 new PreferenceManager.SimplePreferenceComparisonCallback()); 193 addPreferencesFromResource(R.xml.wifi_settings); 194 195 mConnectedAccessPointPreferenceCategory = 196 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 197 198 mAccessPointsPreferenceCategory = 199 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 200 mAdditionalSettingsPreferenceCategory = 201 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 202 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 203 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 204 205 if (isUiRestricted()) { 206 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 207 } 208 209 Context prefContext = getPrefContext(); 210 mAddPreference = new Preference(prefContext); 211 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 212 mAddPreference.setTitle(R.string.wifi_add_network); 213 mSeeAllNetworksPreference = new Preference(prefContext); 214 mSeeAllNetworksPreference.setIcon(R.drawable.ic_arrow_down_24dp); 215 mSeeAllNetworksPreference.setTitle(R.string.wifi_see_all_networks_button_title); 216 mSeeAllNetworks = false; 217 mStatusMessagePreference = new LinkablePreference(prefContext); 218 219 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 220 221 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 222 mBgThread.start(); 223 } 224 225 @Override 226 public void onDestroy() { 227 mBgThread.quit(); 228 super.onDestroy(); 229 } 230 231 @Override 232 public void onActivityCreated(Bundle savedInstanceState) { 233 super.onActivityCreated(savedInstanceState); 234 235 mWifiTracker = 236 new WifiTracker(getActivity(), this, mBgThread.getLooper(), true, true, false); 237 mWifiManager = mWifiTracker.getManager(); 238 239 mConnectListener = new WifiManager.ActionListener() { 240 @Override 241 public void onSuccess() { 242 } 243 @Override 244 public void onFailure(int reason) { 245 Activity activity = getActivity(); 246 if (activity != null) { 247 Toast.makeText(activity, 248 R.string.wifi_failed_connect_message, 249 Toast.LENGTH_SHORT).show(); 250 } 251 } 252 }; 253 254 mSaveListener = new WifiManager.ActionListener() { 255 @Override 256 public void onSuccess() { 257 } 258 @Override 259 public void onFailure(int reason) { 260 Activity activity = getActivity(); 261 if (activity != null) { 262 Toast.makeText(activity, 263 R.string.wifi_failed_save_message, 264 Toast.LENGTH_SHORT).show(); 265 } 266 } 267 }; 268 269 mForgetListener = new WifiManager.ActionListener() { 270 @Override 271 public void onSuccess() { 272 } 273 @Override 274 public void onFailure(int reason) { 275 Activity activity = getActivity(); 276 if (activity != null) { 277 Toast.makeText(activity, 278 R.string.wifi_failed_forget_message, 279 Toast.LENGTH_SHORT).show(); 280 } 281 } 282 }; 283 284 if (savedInstanceState != null) { 285 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 286 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 287 mAccessPointSavedState = 288 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 289 } 290 291 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 292 mWifiNfcDialogSavedState = 293 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 294 } 295 } 296 297 // if we're supposed to enable/disable the Next button based on our current connection 298 // state, start it off in the right state 299 Intent intent = getActivity().getIntent(); 300 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 301 302 if (mEnableNextOnConnection) { 303 if (hasNextButton()) { 304 final ConnectivityManager connectivity = (ConnectivityManager) 305 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 306 if (connectivity != null) { 307 NetworkInfo info = connectivity.getNetworkInfo( 308 ConnectivityManager.TYPE_WIFI); 309 changeNextButtonState(info.isConnected()); 310 } 311 } 312 } 313 314 registerForContextMenu(getListView()); 315 setHasOptionsMenu(true); 316 317 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 318 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 319 onAccessPointsChanged(); 320 } 321 } 322 323 @Override 324 public void onDestroyView() { 325 super.onDestroyView(); 326 327 if (mWifiEnabler != null) { 328 mWifiEnabler.teardownSwitchController(); 329 } 330 } 331 332 @Override 333 public void onStart() { 334 super.onStart(); 335 336 // On/off switch is hidden for Setup Wizard (returns null) 337 mWifiEnabler = createWifiEnabler(); 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 mWifiTracker.startTracking(); 358 activity.invalidateOptionsMenu(); 359 } 360 361 @Override 362 public void onPause() { 363 super.onPause(); 364 if (mWifiEnabler != null) { 365 mWifiEnabler.pause(); 366 } 367 368 mWifiTracker.stopTracking(); 369 } 370 371 @Override 372 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 373 // If the user is not allowed to configure wifi, do not show the menu. 374 if (isUiRestricted()) return; 375 376 addOptionsMenuItems(menu); 377 super.onCreateOptionsMenu(menu, inflater); 378 } 379 380 /** 381 * @param menu 382 */ 383 void addOptionsMenuItems(Menu menu) { 384 final boolean wifiIsEnabled = mWifiTracker.isWifiEnabled(); 385 mScanMenuItem = menu.add(Menu.NONE, MENU_ID_SCAN, 0, R.string.menu_stats_refresh) 386 .setIcon(com.android.internal.R.drawable.ic_menu_refresh); 387 mScanMenuItem.setEnabled(wifiIsEnabled) 388 .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); 389 } 390 391 @Override 392 public int getMetricsCategory() { 393 return MetricsEvent.WIFI; 394 } 395 396 @Override 397 public void onSaveInstanceState(Bundle outState) { 398 super.onSaveInstanceState(outState); 399 400 // If the dialog is showing, save its state. 401 if (mDialog != null && mDialog.isShowing()) { 402 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 403 if (mDlgAccessPoint != null) { 404 mAccessPointSavedState = new Bundle(); 405 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 406 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 407 } 408 } 409 410 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 411 Bundle savedState = new Bundle(); 412 mWifiToNfcDialog.saveState(savedState); 413 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 414 } 415 } 416 417 @Override 418 public boolean onOptionsItemSelected(MenuItem item) { 419 // If the user is not allowed to configure wifi, do not handle menu selections. 420 if (isUiRestricted()) return false; 421 422 switch (item.getItemId()) { 423 case MENU_ID_WPS_PBC: 424 showDialog(WPS_PBC_DIALOG_ID); 425 return true; 426 /* 427 case MENU_ID_P2P: 428 if (getActivity() instanceof SettingsActivity) { 429 ((SettingsActivity) getActivity()).startPreferencePanel( 430 WifiP2pSettings.class.getCanonicalName(), 431 null, 432 R.string.wifi_p2p_settings_title, null, 433 this, 0); 434 } else { 435 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 436 R.string.wifi_p2p_settings_title, -1, null); 437 } 438 return true; 439 */ 440 case MENU_ID_WPS_PIN: 441 showDialog(WPS_PIN_DIALOG_ID); 442 return true; 443 case MENU_ID_SCAN: 444 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORCE_SCAN); 445 mWifiTracker.forceScan(); 446 return true; 447 } 448 return super.onOptionsItemSelected(item); 449 } 450 451 @Override 452 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 453 Preference preference = (Preference) view.getTag(); 454 455 if (preference instanceof LongPressAccessPointPreference) { 456 mSelectedAccessPoint = 457 ((LongPressAccessPointPreference) preference).getAccessPoint(); 458 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 459 if (mSelectedAccessPoint.isConnectable()) { 460 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 461 } 462 463 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 464 // Some configs are ineditable 465 if (isEditabilityLockedDown(getActivity(), config)) { 466 return; 467 } 468 469 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 470 // Allow forgetting a network if either the network is saved or ephemerally 471 // connected. (In the latter case, "forget" blacklists the network so it won't 472 // be used again, ephemerally). 473 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 474 } 475 if (mSelectedAccessPoint.isSaved()) { 476 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 477 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 478 if (nfcAdapter != null && nfcAdapter.isEnabled() && 479 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 480 // Only allow writing of NFC tags for password-protected networks. 481 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 482 } 483 } 484 } 485 } 486 487 @Override 488 public boolean onContextItemSelected(MenuItem item) { 489 if (mSelectedAccessPoint == null) { 490 return super.onContextItemSelected(item); 491 } 492 switch (item.getItemId()) { 493 case MENU_ID_CONNECT: { 494 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 495 if (isSavedNetwork) { 496 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 497 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 498 /** Bypass dialog for unsecured networks */ 499 mSelectedAccessPoint.generateOpenNetworkConfig(); 500 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 501 } else { 502 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 503 } 504 return true; 505 } 506 case MENU_ID_FORGET: { 507 forget(); 508 return true; 509 } 510 case MENU_ID_MODIFY: { 511 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 512 return true; 513 } 514 case MENU_ID_WRITE_NFC: 515 showDialog(WRITE_NFC_DIALOG_ID); 516 return true; 517 518 } 519 return super.onContextItemSelected(item); 520 } 521 522 @Override 523 public boolean onPreferenceTreeClick(Preference preference) { 524 if (preference instanceof LongPressAccessPointPreference) { 525 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 526 if (mSelectedAccessPoint == null) { 527 return false; 528 } 529 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 530 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 531 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 532 mSelectedAccessPoint.generateOpenNetworkConfig(); 533 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 534 } else if (mSelectedAccessPoint.isSaved()) { 535 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 536 } else { 537 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 538 } 539 } else if (preference == mAddPreference) { 540 onAddNetworkPressed(); 541 } else if (preference == mSeeAllNetworksPreference) { 542 mSeeAllNetworks = true; 543 onAccessPointsChanged(); 544 } else { 545 return super.onPreferenceTreeClick(preference); 546 } 547 return true; 548 } 549 550 private void showDialog(AccessPoint accessPoint, int dialogMode) { 551 if (accessPoint != null) { 552 WifiConfiguration config = accessPoint.getConfig(); 553 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 554 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 555 RestrictedLockUtils.getDeviceOwner(getActivity())); 556 return; 557 } 558 } 559 560 if (mDialog != null) { 561 removeDialog(WIFI_DIALOG_ID); 562 mDialog = null; 563 } 564 565 // Save the access point and edit mode 566 mDlgAccessPoint = accessPoint; 567 mDialogMode = dialogMode; 568 569 showDialog(WIFI_DIALOG_ID); 570 } 571 572 @Override 573 public Dialog onCreateDialog(int dialogId) { 574 switch (dialogId) { 575 case WIFI_DIALOG_ID: 576 AccessPoint ap = mDlgAccessPoint; // For manual launch 577 if (ap == null) { // For re-launch from saved state 578 if (mAccessPointSavedState != null) { 579 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 580 // For repeated orientation changes 581 mDlgAccessPoint = ap; 582 // Reset the saved access point data 583 mAccessPointSavedState = null; 584 } 585 } 586 // If it's null, fine, it's for Add Network 587 mSelectedAccessPoint = ap; 588 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 589 /* no hide submit/connect */ false); 590 return mDialog; 591 case WPS_PBC_DIALOG_ID: 592 return new WpsDialog(getActivity(), WpsInfo.PBC); 593 case WPS_PIN_DIALOG_ID: 594 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 595 case WRITE_NFC_DIALOG_ID: 596 if (mSelectedAccessPoint != null) { 597 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 598 getActivity(), mSelectedAccessPoint.getConfig().networkId, 599 mSelectedAccessPoint.getSecurity(), 600 mWifiManager); 601 } else if (mWifiNfcDialogSavedState != null) { 602 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 603 getActivity(), mWifiNfcDialogSavedState, mWifiManager); 604 } 605 606 return mWifiToNfcDialog; 607 } 608 return super.onCreateDialog(dialogId); 609 } 610 611 @Override 612 public int getDialogMetricsCategory(int dialogId) { 613 switch (dialogId) { 614 case WIFI_DIALOG_ID: 615 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 616 case WPS_PBC_DIALOG_ID: 617 return MetricsEvent.DIALOG_WIFI_PBC; 618 case WPS_PIN_DIALOG_ID: 619 return MetricsEvent.DIALOG_WIFI_PIN; 620 case WRITE_NFC_DIALOG_ID: 621 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 622 default: 623 return 0; 624 } 625 } 626 627 /** 628 * Shows the latest access points available with supplemental information like 629 * the strength of network and the security for it. 630 */ 631 @Override 632 public void onAccessPointsChanged() { 633 // Safeguard from some delayed event handling 634 if (getActivity() == null) return; 635 if (isUiRestricted()) { 636 removeConnectedAccessPointPreference(); 637 mAccessPointsPreferenceCategory.removeAll(); 638 if (!isUiRestrictedByOnlyAdmin()) { 639 addMessagePreference(R.string.wifi_empty_list_user_restricted); 640 } 641 return; 642 } 643 final int wifiState = mWifiManager.getWifiState(); 644 645 switch (wifiState) { 646 case WifiManager.WIFI_STATE_ENABLED: 647 // AccessPoints are sorted by the WifiTracker 648 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 649 650 boolean hasAvailableAccessPoints = false; 651 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 652 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 653 654 int index = configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 655 boolean fewerNetworksThanLimit = 656 accessPoints.size() <= index + NETWORKS_TO_INITIALLY_SHOW; 657 int numAccessPointsToShow = mSeeAllNetworks || fewerNetworksThanLimit 658 ? accessPoints.size() : index + NETWORKS_TO_INITIALLY_SHOW; 659 660 for (; index < numAccessPointsToShow; index++) { 661 AccessPoint accessPoint = accessPoints.get(index); 662 // Ignore access points that are out of range. 663 if (accessPoint.getLevel() != -1) { 664 String key = accessPoint.getBssid(); 665 if (TextUtils.isEmpty(key)) { 666 key = accessPoint.getSsidStr(); 667 } 668 hasAvailableAccessPoints = true; 669 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 670 getCachedPreference(key); 671 if (pref != null) { 672 pref.setOrder(index); 673 continue; 674 } 675 LongPressAccessPointPreference 676 preference = createLongPressActionPointPreference(accessPoint); 677 preference.setKey(key); 678 preference.setOrder(index); 679 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 680 && !accessPoint.isSaved() 681 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 682 onPreferenceTreeClick(preference); 683 mOpenSsid = null; 684 } 685 mAccessPointsPreferenceCategory.addPreference(preference); 686 accessPoint.setListener(this); 687 preference.refresh(); 688 } 689 } 690 removeCachedPrefs(mAccessPointsPreferenceCategory); 691 if (!hasAvailableAccessPoints) { 692 setProgressBarVisible(true); 693 Preference pref = new Preference(getContext()) { 694 @Override 695 public void onBindViewHolder(PreferenceViewHolder holder) { 696 super.onBindViewHolder(holder); 697 // Show a line on each side of add network. 698 holder.setDividerAllowedBelow(true); 699 } 700 }; 701 pref.setSelectable(false); 702 pref.setSummary(R.string.wifi_empty_list_wifi_on); 703 pref.setOrder(index++); 704 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 705 mAccessPointsPreferenceCategory.addPreference(pref); 706 } else { 707 setProgressBarVisible(false); 708 } 709 if (mSeeAllNetworks || fewerNetworksThanLimit) { 710 mAccessPointsPreferenceCategory.removePreference(mSeeAllNetworksPreference); 711 mAddPreference.setOrder(index); 712 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 713 } else { 714 mAccessPointsPreferenceCategory.removePreference(mAddPreference); 715 mSeeAllNetworksPreference.setOrder(index); 716 mAccessPointsPreferenceCategory.addPreference(mSeeAllNetworksPreference); 717 } 718 setConfigureWifiSettingsVisibility(); 719 if (mScanMenuItem != null) { 720 mScanMenuItem.setEnabled(true); 721 } 722 break; 723 724 case WifiManager.WIFI_STATE_ENABLING: 725 removeConnectedAccessPointPreference(); 726 mAccessPointsPreferenceCategory.removeAll(); 727 setProgressBarVisible(true); 728 break; 729 730 case WifiManager.WIFI_STATE_DISABLING: 731 addMessagePreference(R.string.wifi_stopping); 732 setProgressBarVisible(true); 733 break; 734 735 case WifiManager.WIFI_STATE_DISABLED: 736 setOffMessage(); 737 setConfigureWifiSettingsVisibility(); 738 setProgressBarVisible(false); 739 if (mScanMenuItem != null) { 740 mScanMenuItem.setEnabled(false); 741 } 742 break; 743 } 744 } 745 746 @NonNull 747 private LongPressAccessPointPreference createLongPressActionPointPreference( 748 AccessPoint accessPoint) { 749 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 750 false, R.drawable.ic_wifi_signal_0, this); 751 } 752 753 /** 754 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 755 * shown. 756 */ 757 private boolean configureConnectedAccessPointPreferenceCategory( 758 List<AccessPoint> accessPoints) { 759 if (accessPoints.size() == 0) { 760 removeConnectedAccessPointPreference(); 761 return false; 762 } 763 764 AccessPoint connectedAp = accessPoints.get(0); 765 if (!connectedAp.isActive()) { 766 removeConnectedAccessPointPreference(); 767 return false; 768 } 769 770 // Is the preference category empty? 771 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 772 addConnectedAccessPointPreference(connectedAp); 773 return true; 774 } 775 776 // Is the previous currently connected SSID different from the new one? 777 if (!((AccessPointPreference) 778 mConnectedAccessPointPreferenceCategory.getPreference(0)) 779 .getAccessPoint().getSsidStr().equals( 780 connectedAp.getSsidStr())) { 781 removeConnectedAccessPointPreference(); 782 addConnectedAccessPointPreference(connectedAp); 783 return true; 784 } 785 786 // Else same AP is connected, nothing to do 787 return true; 788 } 789 790 /** 791 * Creates a Preference for the given {@link AccessPoint} and adds it to the 792 * {@link #mConnectedAccessPointPreferenceCategory}. 793 */ 794 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 795 String key = connectedAp.getBssid(); 796 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 797 getCachedPreference(key); 798 if (pref == null) { 799 pref = createLongPressActionPointPreference(connectedAp); 800 } 801 pref.refresh(); 802 mConnectedAccessPointPreferenceCategory.addPreference(pref); 803 mConnectedAccessPointPreferenceCategory.setVisible(true); 804 } 805 806 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 807 private void removeConnectedAccessPointPreference() { 808 mConnectedAccessPointPreferenceCategory.removeAll(); 809 mConnectedAccessPointPreferenceCategory.setVisible(false); 810 } 811 812 private void setConfigureWifiSettingsVisibility() { 813 if (isUiRestricted()) { 814 mAdditionalSettingsPreferenceCategory.removeAll(); 815 return; 816 } 817 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 818 if (mWifiTracker.doSavedNetworksExist()) { 819 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 820 } else { 821 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 822 } 823 } 824 825 private void setOffMessage() { 826 if (isUiRestricted()) { 827 removeConnectedAccessPointPreference(); 828 mAccessPointsPreferenceCategory.removeAll(); 829 if (!isUiRestrictedByOnlyAdmin()) { 830 addMessagePreference(R.string.wifi_empty_list_user_restricted); 831 } 832 return; 833 } 834 835 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 836 837 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 838 // read the system settings directly. Because when the device is in Airplane mode, even if 839 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 840 final ContentResolver resolver = getActivity().getContentResolver(); 841 final boolean wifiScanningMode = Settings.Global.getInt( 842 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 843 844 if (!wifiScanningMode) { 845 // Show only the brief text if the user is not allowed to configure scanning settings, 846 // or the scanning mode has been turned off. 847 mStatusMessagePreference.setTitle(briefText); 848 } else { 849 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 850 @Override 851 public void onClick() { 852 final SettingsActivity activity = (SettingsActivity) getActivity(); 853 activity.startPreferencePanel(WifiSettings.this, 854 ScanningSettings.class.getName(), 855 null, R.string.location_scanning_screen_title, null, null, 0); 856 } 857 }; 858 mStatusMessagePreference.setText( 859 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 860 } 861 removeConnectedAccessPointPreference(); 862 mAccessPointsPreferenceCategory.removeAll(); 863 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 864 } 865 866 private void addMessagePreference(int messageId) { 867 mStatusMessagePreference.setTitle(messageId); 868 removeConnectedAccessPointPreference(); 869 mAccessPointsPreferenceCategory.removeAll(); 870 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 871 } 872 873 protected void setProgressBarVisible(boolean visible) { 874 if (mProgressHeader != null) { 875 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); 876 } 877 } 878 879 @Override 880 public void onWifiStateChanged(int state) { 881 switch (state) { 882 case WifiManager.WIFI_STATE_ENABLING: 883 addMessagePreference(R.string.wifi_starting); 884 setProgressBarVisible(true); 885 break; 886 887 case WifiManager.WIFI_STATE_DISABLED: 888 setOffMessage(); 889 setProgressBarVisible(false); 890 break; 891 } 892 } 893 894 @Override 895 public void onConnectedChanged() { 896 changeNextButtonState(mWifiTracker.isConnected()); 897 } 898 899 /** 900 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 901 * Wifi setup screens, not in usual wifi settings screen. 902 * 903 * @param enabled true when the device is connected to a wifi network. 904 */ 905 private void changeNextButtonState(boolean enabled) { 906 if (mEnableNextOnConnection && hasNextButton()) { 907 getNextButton().setEnabled(enabled); 908 } 909 } 910 911 @Override 912 public void onForget(WifiDialog dialog) { 913 forget(); 914 } 915 916 @Override 917 public void onSubmit(WifiDialog dialog) { 918 if (mDialog != null) { 919 submit(mDialog.getController()); 920 } 921 } 922 923 /* package */ void submit(WifiConfigController configController) { 924 925 final WifiConfiguration config = configController.getConfig(); 926 927 if (config == null) { 928 if (mSelectedAccessPoint != null 929 && mSelectedAccessPoint.isSaved()) { 930 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 931 } 932 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 933 mWifiManager.save(config, mSaveListener); 934 } else { 935 mWifiManager.save(config, mSaveListener); 936 if (mSelectedAccessPoint != null) { // Not an "Add network" 937 connect(config, false /* isSavedNetwork */); 938 } 939 } 940 941 mWifiTracker.resumeScanning(); 942 } 943 944 /* package */ void forget() { 945 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 946 if (!mSelectedAccessPoint.isSaved()) { 947 if (mSelectedAccessPoint.getNetworkInfo() != null && 948 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 949 // Network is active but has no network ID - must be ephemeral. 950 mWifiManager.disableEphemeralNetwork( 951 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 952 } else { 953 // Should not happen, but a monkey seems to trigger it 954 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 955 return; 956 } 957 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 958 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 959 } else { 960 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 961 } 962 963 mWifiTracker.resumeScanning(); 964 965 // We need to rename/replace "Next" button in wifi setup context. 966 changeNextButtonState(false); 967 } 968 969 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 970 // Log subtype if configuration is a saved network. 971 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 972 isSavedNetwork); 973 mWifiManager.connect(config, mConnectListener); 974 } 975 976 protected void connect(final int networkId, boolean isSavedNetwork) { 977 // Log subtype if configuration is a saved network. 978 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 979 isSavedNetwork); 980 mWifiManager.connect(networkId, mConnectListener); 981 } 982 983 /** 984 * Called when "add network" button is pressed. 985 */ 986 /* package */ void onAddNetworkPressed() { 987 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 988 // No exact access point is selected. 989 mSelectedAccessPoint = null; 990 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 991 } 992 993 @Override 994 protected int getHelpResource() { 995 return R.string.help_url_wifi; 996 } 997 998 @Override 999 public void onAccessPointChanged(final AccessPoint accessPoint) { 1000 View view = getView(); 1001 if (view != null) { 1002 view.post(new Runnable() { 1003 @Override 1004 public void run() { 1005 Object tag = accessPoint.getTag(); 1006 if (tag != null) { 1007 ((LongPressAccessPointPreference) tag).refresh(); 1008 } 1009 } 1010 }); 1011 } 1012 } 1013 1014 @Override 1015 public void onLevelChanged(AccessPoint accessPoint) { 1016 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1017 } 1018 1019 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1020 new BaseSearchIndexProvider() { 1021 @Override 1022 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1023 final List<SearchIndexableRaw> result = new ArrayList<>(); 1024 final Resources res = context.getResources(); 1025 1026 // Add fragment title 1027 SearchIndexableRaw data = new SearchIndexableRaw(context); 1028 data.title = res.getString(R.string.wifi_settings); 1029 data.screenTitle = res.getString(R.string.wifi_settings); 1030 data.keywords = res.getString(R.string.keywords_wifi); 1031 result.add(data); 1032 1033 // Add saved Wi-Fi access points 1034 final List<AccessPoint> accessPoints = 1035 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1036 for (AccessPoint accessPoint : accessPoints) { 1037 data = new SearchIndexableRaw(context); 1038 data.title = accessPoint.getSsidStr(); 1039 data.screenTitle = res.getString(R.string.wifi_settings); 1040 data.enabled = enabled; 1041 result.add(data); 1042 } 1043 1044 return result; 1045 } 1046 }; 1047 1048 /** 1049 * Returns true if the config is not editable through Settings. 1050 * @param context Context of caller 1051 * @param config The WiFi config. 1052 * @return true if the config is not editable through Settings. 1053 */ 1054 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1055 return !canModifyNetwork(context, config); 1056 } 1057 1058 /** 1059 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1060 * TODO: refactor to have only one method. 1061 * @param context Context of caller 1062 * @param config The WiFi config. 1063 * @return true if Settings can modify the config. 1064 */ 1065 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1066 if (config == null) { 1067 return true; 1068 } 1069 1070 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1071 Context.DEVICE_POLICY_SERVICE); 1072 1073 // Check if device has DPM capability. If it has and dpm is still null, then we 1074 // treat this case with suspicion and bail out. 1075 final PackageManager pm = context.getPackageManager(); 1076 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1077 return false; 1078 } 1079 1080 boolean isConfigEligibleForLockdown = false; 1081 if (dpm != null) { 1082 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1083 if (deviceOwner != null) { 1084 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1085 try { 1086 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1087 deviceOwnerUserId); 1088 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1089 } catch (NameNotFoundException e) { 1090 // don't care 1091 } 1092 } 1093 } 1094 if (!isConfigEligibleForLockdown) { 1095 return true; 1096 } 1097 1098 final ContentResolver resolver = context.getContentResolver(); 1099 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1100 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1101 return !isLockdownFeatureEnabled; 1102 } 1103 1104 private static class SummaryProvider 1105 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1106 1107 private final Context mContext; 1108 private final SummaryLoader mSummaryLoader; 1109 1110 @VisibleForTesting 1111 WifiSummaryUpdater mSummaryHelper; 1112 1113 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1114 mContext = context; 1115 mSummaryLoader = summaryLoader; 1116 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1117 } 1118 1119 1120 @Override 1121 public void setListening(boolean listening) { 1122 mSummaryHelper.register(listening); 1123 } 1124 1125 @Override 1126 public void onSummaryChanged(String summary) { 1127 mSummaryLoader.setSummary(this, summary); 1128 } 1129 } 1130 1131 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1132 = new SummaryLoader.SummaryProviderFactory() { 1133 @Override 1134 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1135 SummaryLoader summaryLoader) { 1136 return new SummaryProvider(activity, summaryLoader); 1137 } 1138 }; 1139} 1140