WifiSettings.java revision c6ca314c0b872f75926807ca7d6eb24ebe7cb684
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 mConnectedAccessPointPreferenceCategory.setVisible(false); // initially hidden 198 199 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 if (isUiRestricted()) { 207 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 208 } 209 210 Context prefContext = getPrefContext(); 211 mAddPreference = new Preference(prefContext); 212 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 213 mAddPreference.setTitle(R.string.wifi_add_network); 214 mSeeAllNetworksPreference = new Preference(prefContext); 215 mSeeAllNetworksPreference.setIcon(R.drawable.ic_arrow_down_24dp); 216 mSeeAllNetworksPreference.setTitle(R.string.wifi_see_all_networks_button_title); 217 mSeeAllNetworks = false; 218 mStatusMessagePreference = new LinkablePreference(prefContext); 219 220 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 221 222 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 223 mBgThread.start(); 224 } 225 226 @Override 227 public void onDestroy() { 228 mBgThread.quit(); 229 super.onDestroy(); 230 } 231 232 @Override 233 public void onActivityCreated(Bundle savedInstanceState) { 234 super.onActivityCreated(savedInstanceState); 235 236 mWifiTracker = 237 new WifiTracker(getActivity(), this, mBgThread.getLooper(), true, true, false); 238 mWifiManager = mWifiTracker.getManager(); 239 240 mConnectListener = new WifiManager.ActionListener() { 241 @Override 242 public void onSuccess() { 243 } 244 @Override 245 public void onFailure(int reason) { 246 Activity activity = getActivity(); 247 if (activity != null) { 248 Toast.makeText(activity, 249 R.string.wifi_failed_connect_message, 250 Toast.LENGTH_SHORT).show(); 251 } 252 } 253 }; 254 255 mSaveListener = new WifiManager.ActionListener() { 256 @Override 257 public void onSuccess() { 258 } 259 @Override 260 public void onFailure(int reason) { 261 Activity activity = getActivity(); 262 if (activity != null) { 263 Toast.makeText(activity, 264 R.string.wifi_failed_save_message, 265 Toast.LENGTH_SHORT).show(); 266 } 267 } 268 }; 269 270 mForgetListener = new WifiManager.ActionListener() { 271 @Override 272 public void onSuccess() { 273 } 274 @Override 275 public void onFailure(int reason) { 276 Activity activity = getActivity(); 277 if (activity != null) { 278 Toast.makeText(activity, 279 R.string.wifi_failed_forget_message, 280 Toast.LENGTH_SHORT).show(); 281 } 282 } 283 }; 284 285 if (savedInstanceState != null) { 286 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 287 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 288 mAccessPointSavedState = 289 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 290 } 291 292 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 293 mWifiNfcDialogSavedState = 294 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 295 } 296 } 297 298 // if we're supposed to enable/disable the Next button based on our current connection 299 // state, start it off in the right state 300 Intent intent = getActivity().getIntent(); 301 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 302 303 if (mEnableNextOnConnection) { 304 if (hasNextButton()) { 305 final ConnectivityManager connectivity = (ConnectivityManager) 306 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 307 if (connectivity != null) { 308 NetworkInfo info = connectivity.getNetworkInfo( 309 ConnectivityManager.TYPE_WIFI); 310 changeNextButtonState(info.isConnected()); 311 } 312 } 313 } 314 315 registerForContextMenu(getListView()); 316 setHasOptionsMenu(true); 317 318 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 319 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 320 onAccessPointsChanged(); 321 } 322 } 323 324 @Override 325 public void onDestroyView() { 326 super.onDestroyView(); 327 328 if (mWifiEnabler != null) { 329 mWifiEnabler.teardownSwitchController(); 330 } 331 } 332 333 @Override 334 public void onStart() { 335 super.onStart(); 336 337 // On/off switch is hidden for Setup Wizard (returns null) 338 mWifiEnabler = createWifiEnabler(); 339 } 340 341 /** 342 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 343 */ 344 private WifiEnabler createWifiEnabler() { 345 final SettingsActivity activity = (SettingsActivity) getActivity(); 346 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 347 mMetricsFeatureProvider); 348 } 349 350 @Override 351 public void onResume() { 352 final Activity activity = getActivity(); 353 super.onResume(); 354 if (mWifiEnabler != null) { 355 mWifiEnabler.resume(activity); 356 } 357 358 mWifiTracker.startTracking(); 359 activity.invalidateOptionsMenu(); 360 } 361 362 @Override 363 public void onPause() { 364 super.onPause(); 365 if (mWifiEnabler != null) { 366 mWifiEnabler.pause(); 367 } 368 369 mWifiTracker.stopTracking(); 370 } 371 372 @Override 373 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 374 // If the user is not allowed to configure wifi, do not show the menu. 375 if (isUiRestricted()) return; 376 377 addOptionsMenuItems(menu); 378 super.onCreateOptionsMenu(menu, inflater); 379 } 380 381 /** 382 * @param menu 383 */ 384 void addOptionsMenuItems(Menu menu) { 385 final boolean wifiIsEnabled = mWifiTracker.isWifiEnabled(); 386 mScanMenuItem = menu.add(Menu.NONE, MENU_ID_SCAN, 0, R.string.menu_stats_refresh) 387 .setIcon(com.android.internal.R.drawable.ic_menu_refresh); 388 mScanMenuItem.setEnabled(wifiIsEnabled) 389 .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); 390 } 391 392 @Override 393 public int getMetricsCategory() { 394 return MetricsEvent.WIFI; 395 } 396 397 @Override 398 public void onSaveInstanceState(Bundle outState) { 399 super.onSaveInstanceState(outState); 400 401 // If the dialog is showing, save its state. 402 if (mDialog != null && mDialog.isShowing()) { 403 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 404 if (mDlgAccessPoint != null) { 405 mAccessPointSavedState = new Bundle(); 406 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 407 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 408 } 409 } 410 411 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 412 Bundle savedState = new Bundle(); 413 mWifiToNfcDialog.saveState(savedState); 414 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 415 } 416 } 417 418 @Override 419 public boolean onOptionsItemSelected(MenuItem item) { 420 // If the user is not allowed to configure wifi, do not handle menu selections. 421 if (isUiRestricted()) return false; 422 423 switch (item.getItemId()) { 424 case MENU_ID_WPS_PBC: 425 showDialog(WPS_PBC_DIALOG_ID); 426 return true; 427 /* 428 case MENU_ID_P2P: 429 if (getActivity() instanceof SettingsActivity) { 430 ((SettingsActivity) getActivity()).startPreferencePanel( 431 WifiP2pSettings.class.getCanonicalName(), 432 null, 433 R.string.wifi_p2p_settings_title, null, 434 this, 0); 435 } else { 436 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 437 R.string.wifi_p2p_settings_title, -1, null); 438 } 439 return true; 440 */ 441 case MENU_ID_WPS_PIN: 442 showDialog(WPS_PIN_DIALOG_ID); 443 return true; 444 case MENU_ID_SCAN: 445 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORCE_SCAN); 446 mWifiTracker.forceScan(); 447 return true; 448 } 449 return super.onOptionsItemSelected(item); 450 } 451 452 @Override 453 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 454 Preference preference = (Preference) view.getTag(); 455 456 if (preference instanceof LongPressAccessPointPreference) { 457 mSelectedAccessPoint = 458 ((LongPressAccessPointPreference) preference).getAccessPoint(); 459 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 460 if (mSelectedAccessPoint.isConnectable()) { 461 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 462 } 463 464 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 465 // Some configs are ineditable 466 if (isEditabilityLockedDown(getActivity(), config)) { 467 return; 468 } 469 470 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 471 // Allow forgetting a network if either the network is saved or ephemerally 472 // connected. (In the latter case, "forget" blacklists the network so it won't 473 // be used again, ephemerally). 474 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 475 } 476 if (mSelectedAccessPoint.isSaved()) { 477 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 478 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 479 if (nfcAdapter != null && nfcAdapter.isEnabled() && 480 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 481 // Only allow writing of NFC tags for password-protected networks. 482 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 483 } 484 } 485 } 486 } 487 488 @Override 489 public boolean onContextItemSelected(MenuItem item) { 490 if (mSelectedAccessPoint == null) { 491 return super.onContextItemSelected(item); 492 } 493 switch (item.getItemId()) { 494 case MENU_ID_CONNECT: { 495 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 496 if (isSavedNetwork) { 497 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 498 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 499 /** Bypass dialog for unsecured networks */ 500 mSelectedAccessPoint.generateOpenNetworkConfig(); 501 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 502 } else { 503 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 504 } 505 return true; 506 } 507 case MENU_ID_FORGET: { 508 forget(); 509 return true; 510 } 511 case MENU_ID_MODIFY: { 512 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 513 return true; 514 } 515 case MENU_ID_WRITE_NFC: 516 showDialog(WRITE_NFC_DIALOG_ID); 517 return true; 518 519 } 520 return super.onContextItemSelected(item); 521 } 522 523 @Override 524 public boolean onPreferenceTreeClick(Preference preference) { 525 if (preference instanceof LongPressAccessPointPreference) { 526 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 527 if (mSelectedAccessPoint == null) { 528 return false; 529 } 530 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 531 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 532 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 533 mSelectedAccessPoint.generateOpenNetworkConfig(); 534 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 535 } else if (mSelectedAccessPoint.isSaved()) { 536 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 537 } else { 538 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 539 } 540 } else if (preference == mAddPreference) { 541 onAddNetworkPressed(); 542 } else if (preference == mSeeAllNetworksPreference) { 543 mSeeAllNetworks = true; 544 onAccessPointsChanged(); 545 } else { 546 return super.onPreferenceTreeClick(preference); 547 } 548 return true; 549 } 550 551 private void showDialog(AccessPoint accessPoint, int dialogMode) { 552 if (accessPoint != null) { 553 WifiConfiguration config = accessPoint.getConfig(); 554 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 555 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 556 RestrictedLockUtils.getDeviceOwner(getActivity())); 557 return; 558 } 559 } 560 561 if (mDialog != null) { 562 removeDialog(WIFI_DIALOG_ID); 563 mDialog = null; 564 } 565 566 // Save the access point and edit mode 567 mDlgAccessPoint = accessPoint; 568 mDialogMode = dialogMode; 569 570 showDialog(WIFI_DIALOG_ID); 571 } 572 573 @Override 574 public Dialog onCreateDialog(int dialogId) { 575 switch (dialogId) { 576 case WIFI_DIALOG_ID: 577 AccessPoint ap = mDlgAccessPoint; // For manual launch 578 if (ap == null) { // For re-launch from saved state 579 if (mAccessPointSavedState != null) { 580 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 581 // For repeated orientation changes 582 mDlgAccessPoint = ap; 583 // Reset the saved access point data 584 mAccessPointSavedState = null; 585 } 586 } 587 // If it's null, fine, it's for Add Network 588 mSelectedAccessPoint = ap; 589 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 590 /* no hide submit/connect */ false); 591 return mDialog; 592 case WPS_PBC_DIALOG_ID: 593 return new WpsDialog(getActivity(), WpsInfo.PBC); 594 case WPS_PIN_DIALOG_ID: 595 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 596 case WRITE_NFC_DIALOG_ID: 597 if (mSelectedAccessPoint != null) { 598 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 599 getActivity(), mSelectedAccessPoint.getConfig().networkId, 600 mSelectedAccessPoint.getSecurity(), 601 mWifiManager); 602 } else if (mWifiNfcDialogSavedState != null) { 603 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 604 getActivity(), mWifiNfcDialogSavedState, mWifiManager); 605 } 606 607 return mWifiToNfcDialog; 608 } 609 return super.onCreateDialog(dialogId); 610 } 611 612 @Override 613 public int getDialogMetricsCategory(int dialogId) { 614 switch (dialogId) { 615 case WIFI_DIALOG_ID: 616 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 617 case WPS_PBC_DIALOG_ID: 618 return MetricsEvent.DIALOG_WIFI_PBC; 619 case WPS_PIN_DIALOG_ID: 620 return MetricsEvent.DIALOG_WIFI_PIN; 621 case WRITE_NFC_DIALOG_ID: 622 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 623 default: 624 return 0; 625 } 626 } 627 628 /** 629 * Shows the latest access points available with supplemental information like 630 * the strength of network and the security for it. 631 */ 632 @Override 633 public void onAccessPointsChanged() { 634 // Safeguard from some delayed event handling 635 if (getActivity() == null) return; 636 if (isUiRestricted()) { 637 removeConnectedAccessPointPreference(); 638 mAccessPointsPreferenceCategory.removeAll(); 639 if (!isUiRestrictedByOnlyAdmin()) { 640 addMessagePreference(R.string.wifi_empty_list_user_restricted); 641 } 642 return; 643 } 644 final int wifiState = mWifiManager.getWifiState(); 645 646 switch (wifiState) { 647 case WifiManager.WIFI_STATE_ENABLED: 648 // AccessPoints are sorted by the WifiTracker 649 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 650 651 boolean hasAvailableAccessPoints = false; 652 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 653 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 654 655 int index = configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 656 boolean fewerNetworksThanLimit = 657 accessPoints.size() <= index + NETWORKS_TO_INITIALLY_SHOW; 658 int numAccessPointsToShow = mSeeAllNetworks || fewerNetworksThanLimit 659 ? accessPoints.size() : index + NETWORKS_TO_INITIALLY_SHOW; 660 661 for (; index < numAccessPointsToShow; index++) { 662 AccessPoint accessPoint = accessPoints.get(index); 663 // Ignore access points that are out of range. 664 if (accessPoint.getLevel() != -1) { 665 String key = accessPoint.getBssid(); 666 if (TextUtils.isEmpty(key)) { 667 key = accessPoint.getSsidStr(); 668 } 669 hasAvailableAccessPoints = true; 670 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 671 getCachedPreference(key); 672 if (pref != null) { 673 pref.setOrder(index); 674 continue; 675 } 676 LongPressAccessPointPreference 677 preference = createLongPressActionPointPreference(accessPoint); 678 preference.setKey(key); 679 preference.setOrder(index); 680 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 681 && !accessPoint.isSaved() 682 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 683 onPreferenceTreeClick(preference); 684 mOpenSsid = null; 685 } 686 mAccessPointsPreferenceCategory.addPreference(preference); 687 accessPoint.setListener(this); 688 preference.refresh(); 689 } 690 } 691 removeCachedPrefs(mAccessPointsPreferenceCategory); 692 if (!hasAvailableAccessPoints) { 693 setProgressBarVisible(true); 694 Preference pref = new Preference(getContext()) { 695 @Override 696 public void onBindViewHolder(PreferenceViewHolder holder) { 697 super.onBindViewHolder(holder); 698 // Show a line on each side of add network. 699 holder.setDividerAllowedBelow(true); 700 } 701 }; 702 pref.setSelectable(false); 703 pref.setSummary(R.string.wifi_empty_list_wifi_on); 704 pref.setOrder(index++); 705 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 706 mAccessPointsPreferenceCategory.addPreference(pref); 707 } else { 708 setProgressBarVisible(false); 709 } 710 if (mSeeAllNetworks || fewerNetworksThanLimit) { 711 mAccessPointsPreferenceCategory.removePreference(mSeeAllNetworksPreference); 712 mAddPreference.setOrder(index); 713 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 714 } else { 715 mAccessPointsPreferenceCategory.removePreference(mAddPreference); 716 mSeeAllNetworksPreference.setOrder(index); 717 mAccessPointsPreferenceCategory.addPreference(mSeeAllNetworksPreference); 718 } 719 setConfigureWifiSettingsVisibility(); 720 if (mScanMenuItem != null) { 721 mScanMenuItem.setEnabled(true); 722 } 723 break; 724 725 case WifiManager.WIFI_STATE_ENABLING: 726 removeConnectedAccessPointPreference(); 727 mAccessPointsPreferenceCategory.removeAll(); 728 setProgressBarVisible(true); 729 break; 730 731 case WifiManager.WIFI_STATE_DISABLING: 732 addMessagePreference(R.string.wifi_stopping); 733 setProgressBarVisible(true); 734 break; 735 736 case WifiManager.WIFI_STATE_DISABLED: 737 setOffMessage(); 738 setConfigureWifiSettingsVisibility(); 739 setProgressBarVisible(false); 740 if (mScanMenuItem != null) { 741 mScanMenuItem.setEnabled(false); 742 } 743 break; 744 } 745 } 746 747 @NonNull 748 private LongPressAccessPointPreference createLongPressActionPointPreference( 749 AccessPoint accessPoint) { 750 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 751 false, R.drawable.ic_wifi_signal_0, this); 752 } 753 754 /** 755 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 756 * shown. 757 */ 758 private boolean configureConnectedAccessPointPreferenceCategory( 759 List<AccessPoint> accessPoints) { 760 if (accessPoints.size() == 0) { 761 removeConnectedAccessPointPreference(); 762 return false; 763 } 764 765 AccessPoint connectedAp = accessPoints.get(0); 766 if (!connectedAp.isActive()) { 767 removeConnectedAccessPointPreference(); 768 return false; 769 } 770 771 // Is the preference category empty? 772 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 773 addConnectedAccessPointPreference(connectedAp); 774 return true; 775 } 776 777 // Is the previous currently connected SSID different from the new one? 778 if (!((AccessPointPreference) 779 mConnectedAccessPointPreferenceCategory.getPreference(0)) 780 .getAccessPoint().getSsidStr().equals( 781 connectedAp.getSsidStr())) { 782 removeConnectedAccessPointPreference(); 783 addConnectedAccessPointPreference(connectedAp); 784 return true; 785 } 786 787 // Else same AP is connected, nothing to do 788 return true; 789 } 790 791 /** 792 * Creates a Preference for the given {@link AccessPoint} and adds it to the 793 * {@link #mConnectedAccessPointPreferenceCategory}. 794 */ 795 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 796 String key = connectedAp.getBssid(); 797 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 798 getCachedPreference(key); 799 if (pref == null) { 800 pref = createLongPressActionPointPreference(connectedAp); 801 } 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 { 958 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 959 } 960 961 mWifiTracker.resumeScanning(); 962 963 // We need to rename/replace "Next" button in wifi setup context. 964 changeNextButtonState(false); 965 } 966 967 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 968 // Log subtype if configuration is a saved network. 969 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 970 isSavedNetwork); 971 mWifiManager.connect(config, mConnectListener); 972 } 973 974 protected void connect(final int networkId, boolean isSavedNetwork) { 975 // Log subtype if configuration is a saved network. 976 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 977 isSavedNetwork); 978 mWifiManager.connect(networkId, mConnectListener); 979 } 980 981 /** 982 * Called when "add network" button is pressed. 983 */ 984 /* package */ void onAddNetworkPressed() { 985 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 986 // No exact access point is selected. 987 mSelectedAccessPoint = null; 988 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 989 } 990 991 @Override 992 protected int getHelpResource() { 993 return R.string.help_url_wifi; 994 } 995 996 @Override 997 public void onAccessPointChanged(final AccessPoint accessPoint) { 998 View view = getView(); 999 if (view != null) { 1000 view.post(new Runnable() { 1001 @Override 1002 public void run() { 1003 Object tag = accessPoint.getTag(); 1004 if (tag != null) { 1005 ((LongPressAccessPointPreference) tag).refresh(); 1006 } 1007 } 1008 }); 1009 } 1010 } 1011 1012 @Override 1013 public void onLevelChanged(AccessPoint accessPoint) { 1014 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1015 } 1016 1017 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1018 new BaseSearchIndexProvider() { 1019 @Override 1020 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1021 final List<SearchIndexableRaw> result = new ArrayList<>(); 1022 final Resources res = context.getResources(); 1023 1024 // Add fragment title 1025 SearchIndexableRaw data = new SearchIndexableRaw(context); 1026 data.title = res.getString(R.string.wifi_settings); 1027 data.screenTitle = res.getString(R.string.wifi_settings); 1028 data.keywords = res.getString(R.string.keywords_wifi); 1029 result.add(data); 1030 1031 // Add saved Wi-Fi access points 1032 final List<AccessPoint> accessPoints = 1033 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1034 for (AccessPoint accessPoint : accessPoints) { 1035 data = new SearchIndexableRaw(context); 1036 data.title = accessPoint.getSsidStr(); 1037 data.screenTitle = res.getString(R.string.wifi_settings); 1038 data.enabled = enabled; 1039 result.add(data); 1040 } 1041 1042 return result; 1043 } 1044 }; 1045 1046 /** 1047 * Returns true if the config is not editable through Settings. 1048 * @param context Context of caller 1049 * @param config The WiFi config. 1050 * @return true if the config is not editable through Settings. 1051 */ 1052 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1053 return !canModifyNetwork(context, config); 1054 } 1055 1056 /** 1057 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1058 * TODO: refactor to have only one method. 1059 * @param context Context of caller 1060 * @param config The WiFi config. 1061 * @return true if Settings can modify the config. 1062 */ 1063 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1064 if (config == null) { 1065 return true; 1066 } 1067 1068 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1069 Context.DEVICE_POLICY_SERVICE); 1070 1071 // Check if device has DPM capability. If it has and dpm is still null, then we 1072 // treat this case with suspicion and bail out. 1073 final PackageManager pm = context.getPackageManager(); 1074 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1075 return false; 1076 } 1077 1078 boolean isConfigEligibleForLockdown = false; 1079 if (dpm != null) { 1080 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1081 if (deviceOwner != null) { 1082 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1083 try { 1084 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1085 deviceOwnerUserId); 1086 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1087 } catch (NameNotFoundException e) { 1088 // don't care 1089 } 1090 } 1091 } 1092 if (!isConfigEligibleForLockdown) { 1093 return true; 1094 } 1095 1096 final ContentResolver resolver = context.getContentResolver(); 1097 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1098 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1099 return !isLockdownFeatureEnabled; 1100 } 1101 1102 private static class SummaryProvider 1103 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1104 1105 private final Context mContext; 1106 private final SummaryLoader mSummaryLoader; 1107 1108 @VisibleForTesting 1109 WifiSummaryUpdater mSummaryHelper; 1110 1111 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1112 mContext = context; 1113 mSummaryLoader = summaryLoader; 1114 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1115 } 1116 1117 1118 @Override 1119 public void setListening(boolean listening) { 1120 mSummaryHelper.register(listening); 1121 } 1122 1123 @Override 1124 public void onSummaryChanged(String summary) { 1125 mSummaryLoader.setSummary(this, summary); 1126 } 1127 } 1128 1129 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1130 = new SummaryLoader.SummaryProviderFactory() { 1131 @Override 1132 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1133 SummaryLoader summaryLoader) { 1134 return new SummaryProvider(activity, summaryLoader); 1135 } 1136 }; 1137} 1138