WifiSettings.java revision 2e966c642fb4f5464e0941339a10a9dad9d3aee3
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 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 183 } 184 } 185 186 @Override 187 public void onCreate(Bundle icicle) { 188 super.onCreate(icicle); 189 getPreferenceManager().setPreferenceComparisonCallback( 190 new PreferenceManager.SimplePreferenceComparisonCallback()); 191 addPreferencesFromResource(R.xml.wifi_settings); 192 193 mConnectedAccessPointPreferenceCategory = 194 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 195 mConnectedAccessPointPreferenceCategory.setVisible(false); // initially hidden 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 Context prefContext = getPrefContext(); 205 mAddPreference = new Preference(prefContext); 206 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 207 mAddPreference.setTitle(R.string.wifi_add_network); 208 mSeeAllNetworksPreference = new Preference(prefContext); 209 mSeeAllNetworksPreference.setIcon(R.drawable.ic_arrow_down_24dp); 210 mSeeAllNetworksPreference.setTitle(R.string.wifi_see_all_networks_button_title); 211 mSeeAllNetworks = false; 212 mStatusMessagePreference = new LinkablePreference(prefContext); 213 214 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 215 216 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 217 mBgThread.start(); 218 } 219 220 @Override 221 public void onDestroy() { 222 mBgThread.quit(); 223 super.onDestroy(); 224 } 225 226 @Override 227 public void onActivityCreated(Bundle savedInstanceState) { 228 super.onActivityCreated(savedInstanceState); 229 230 mWifiTracker = 231 new WifiTracker(getActivity(), this, mBgThread.getLooper(), true, true, false); 232 mWifiManager = mWifiTracker.getManager(); 233 234 mConnectListener = new WifiManager.ActionListener() { 235 @Override 236 public void onSuccess() { 237 } 238 @Override 239 public void onFailure(int reason) { 240 Activity activity = getActivity(); 241 if (activity != null) { 242 Toast.makeText(activity, 243 R.string.wifi_failed_connect_message, 244 Toast.LENGTH_SHORT).show(); 245 } 246 } 247 }; 248 249 mSaveListener = new WifiManager.ActionListener() { 250 @Override 251 public void onSuccess() { 252 } 253 @Override 254 public void onFailure(int reason) { 255 Activity activity = getActivity(); 256 if (activity != null) { 257 Toast.makeText(activity, 258 R.string.wifi_failed_save_message, 259 Toast.LENGTH_SHORT).show(); 260 } 261 } 262 }; 263 264 mForgetListener = new WifiManager.ActionListener() { 265 @Override 266 public void onSuccess() { 267 } 268 @Override 269 public void onFailure(int reason) { 270 Activity activity = getActivity(); 271 if (activity != null) { 272 Toast.makeText(activity, 273 R.string.wifi_failed_forget_message, 274 Toast.LENGTH_SHORT).show(); 275 } 276 } 277 }; 278 279 if (savedInstanceState != null) { 280 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 281 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 282 mAccessPointSavedState = 283 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 284 } 285 286 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 287 mWifiNfcDialogSavedState = 288 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 289 } 290 } 291 292 // if we're supposed to enable/disable the Next button based on our current connection 293 // state, start it off in the right state 294 Intent intent = getActivity().getIntent(); 295 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 296 297 if (mEnableNextOnConnection) { 298 if (hasNextButton()) { 299 final ConnectivityManager connectivity = (ConnectivityManager) 300 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 301 if (connectivity != null) { 302 NetworkInfo info = connectivity.getNetworkInfo( 303 ConnectivityManager.TYPE_WIFI); 304 changeNextButtonState(info.isConnected()); 305 } 306 } 307 } 308 309 registerForContextMenu(getListView()); 310 setHasOptionsMenu(true); 311 312 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 313 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 314 onAccessPointsChanged(); 315 } 316 } 317 318 @Override 319 public void onDestroyView() { 320 super.onDestroyView(); 321 322 if (mWifiEnabler != null) { 323 mWifiEnabler.teardownSwitchController(); 324 } 325 } 326 327 @Override 328 public void onStart() { 329 super.onStart(); 330 331 // On/off switch is hidden for Setup Wizard (returns null) 332 mWifiEnabler = createWifiEnabler(); 333 } 334 335 /** 336 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 337 */ 338 private WifiEnabler createWifiEnabler() { 339 final SettingsActivity activity = (SettingsActivity) getActivity(); 340 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 341 mMetricsFeatureProvider); 342 } 343 344 @Override 345 public void onResume() { 346 final Activity activity = getActivity(); 347 super.onResume(); 348 if (mWifiEnabler != null) { 349 mWifiEnabler.resume(activity); 350 } 351 352 mWifiTracker.startTracking(); 353 activity.invalidateOptionsMenu(); 354 } 355 356 @Override 357 public void onPause() { 358 super.onPause(); 359 if (mWifiEnabler != null) { 360 mWifiEnabler.pause(); 361 } 362 363 mWifiTracker.stopTracking(); 364 } 365 366 @Override 367 public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { 368 // If the user is not allowed to configure wifi, do not show the menu. 369 if (isUiRestricted()) return; 370 371 addOptionsMenuItems(menu); 372 super.onCreateOptionsMenu(menu, inflater); 373 } 374 375 /** 376 * @param menu 377 */ 378 void addOptionsMenuItems(Menu menu) { 379 final boolean wifiIsEnabled = mWifiTracker.isWifiEnabled(); 380 mScanMenuItem = menu.add(Menu.NONE, MENU_ID_SCAN, 0, R.string.menu_stats_refresh) 381 .setIcon(com.android.internal.R.drawable.ic_menu_refresh); 382 mScanMenuItem.setEnabled(wifiIsEnabled) 383 .setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); 384 } 385 386 @Override 387 public int getMetricsCategory() { 388 return MetricsEvent.WIFI; 389 } 390 391 @Override 392 public void onSaveInstanceState(Bundle outState) { 393 super.onSaveInstanceState(outState); 394 395 // If the dialog is showing, save its state. 396 if (mDialog != null && mDialog.isShowing()) { 397 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 398 if (mDlgAccessPoint != null) { 399 mAccessPointSavedState = new Bundle(); 400 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 401 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 402 } 403 } 404 405 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 406 Bundle savedState = new Bundle(); 407 mWifiToNfcDialog.saveState(savedState); 408 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 409 } 410 } 411 412 @Override 413 public boolean onOptionsItemSelected(MenuItem item) { 414 // If the user is not allowed to configure wifi, do not handle menu selections. 415 if (isUiRestricted()) return false; 416 417 switch (item.getItemId()) { 418 case MENU_ID_WPS_PBC: 419 showDialog(WPS_PBC_DIALOG_ID); 420 return true; 421 /* 422 case MENU_ID_P2P: 423 if (getActivity() instanceof SettingsActivity) { 424 ((SettingsActivity) getActivity()).startPreferencePanel( 425 WifiP2pSettings.class.getCanonicalName(), 426 null, 427 R.string.wifi_p2p_settings_title, null, 428 this, 0); 429 } else { 430 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 431 R.string.wifi_p2p_settings_title, -1, null); 432 } 433 return true; 434 */ 435 case MENU_ID_WPS_PIN: 436 showDialog(WPS_PIN_DIALOG_ID); 437 return true; 438 case MENU_ID_SCAN: 439 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORCE_SCAN); 440 mWifiTracker.forceScan(); 441 return true; 442 } 443 return super.onOptionsItemSelected(item); 444 } 445 446 @Override 447 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 448 Preference preference = (Preference) view.getTag(); 449 450 if (preference instanceof LongPressAccessPointPreference) { 451 mSelectedAccessPoint = 452 ((LongPressAccessPointPreference) preference).getAccessPoint(); 453 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 454 if (mSelectedAccessPoint.isConnectable()) { 455 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 456 } 457 458 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 459 // Some configs are ineditable 460 if (isEditabilityLockedDown(getActivity(), config)) { 461 return; 462 } 463 464 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 465 // Allow forgetting a network if either the network is saved or ephemerally 466 // connected. (In the latter case, "forget" blacklists the network so it won't 467 // be used again, ephemerally). 468 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 469 } 470 if (mSelectedAccessPoint.isSaved()) { 471 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 472 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 473 if (nfcAdapter != null && nfcAdapter.isEnabled() && 474 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 475 // Only allow writing of NFC tags for password-protected networks. 476 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 477 } 478 } 479 } 480 } 481 482 @Override 483 public boolean onContextItemSelected(MenuItem item) { 484 if (mSelectedAccessPoint == null) { 485 return super.onContextItemSelected(item); 486 } 487 switch (item.getItemId()) { 488 case MENU_ID_CONNECT: { 489 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 490 if (isSavedNetwork) { 491 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 492 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 493 /** Bypass dialog for unsecured networks */ 494 mSelectedAccessPoint.generateOpenNetworkConfig(); 495 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 496 } else { 497 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 498 } 499 return true; 500 } 501 case MENU_ID_FORGET: { 502 forget(); 503 return true; 504 } 505 case MENU_ID_MODIFY: { 506 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 507 return true; 508 } 509 case MENU_ID_WRITE_NFC: 510 showDialog(WRITE_NFC_DIALOG_ID); 511 return true; 512 513 } 514 return super.onContextItemSelected(item); 515 } 516 517 @Override 518 public boolean onPreferenceTreeClick(Preference preference) { 519 if (preference instanceof LongPressAccessPointPreference) { 520 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 521 if (mSelectedAccessPoint == null) { 522 return false; 523 } 524 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 525 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 526 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 527 mSelectedAccessPoint.generateOpenNetworkConfig(); 528 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 529 } else if (mSelectedAccessPoint.isSaved()) { 530 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 531 } else { 532 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 533 } 534 } else if (preference == mAddPreference) { 535 onAddNetworkPressed(); 536 } else if (preference == mSeeAllNetworksPreference) { 537 mSeeAllNetworks = true; 538 onAccessPointsChanged(); 539 } else { 540 return super.onPreferenceTreeClick(preference); 541 } 542 return true; 543 } 544 545 private void showDialog(AccessPoint accessPoint, int dialogMode) { 546 if (accessPoint != null) { 547 WifiConfiguration config = accessPoint.getConfig(); 548 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 549 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 550 RestrictedLockUtils.getDeviceOwner(getActivity())); 551 return; 552 } 553 } 554 555 if (mDialog != null) { 556 removeDialog(WIFI_DIALOG_ID); 557 mDialog = null; 558 } 559 560 // Save the access point and edit mode 561 mDlgAccessPoint = accessPoint; 562 mDialogMode = dialogMode; 563 564 showDialog(WIFI_DIALOG_ID); 565 } 566 567 @Override 568 public Dialog onCreateDialog(int dialogId) { 569 switch (dialogId) { 570 case WIFI_DIALOG_ID: 571 AccessPoint ap = mDlgAccessPoint; // For manual launch 572 if (ap == null) { // For re-launch from saved state 573 if (mAccessPointSavedState != null) { 574 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 575 // For repeated orientation changes 576 mDlgAccessPoint = ap; 577 // Reset the saved access point data 578 mAccessPointSavedState = null; 579 } 580 } 581 // If it's null, fine, it's for Add Network 582 mSelectedAccessPoint = ap; 583 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 584 /* no hide submit/connect */ false); 585 return mDialog; 586 case WPS_PBC_DIALOG_ID: 587 return new WpsDialog(getActivity(), WpsInfo.PBC); 588 case WPS_PIN_DIALOG_ID: 589 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 590 case WRITE_NFC_DIALOG_ID: 591 if (mSelectedAccessPoint != null) { 592 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 593 getActivity(), mSelectedAccessPoint.getConfig().networkId, 594 mSelectedAccessPoint.getSecurity(), 595 mWifiManager); 596 } else if (mWifiNfcDialogSavedState != null) { 597 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 598 getActivity(), mWifiNfcDialogSavedState, mWifiManager); 599 } 600 601 return mWifiToNfcDialog; 602 } 603 return super.onCreateDialog(dialogId); 604 } 605 606 @Override 607 public int getDialogMetricsCategory(int dialogId) { 608 switch (dialogId) { 609 case WIFI_DIALOG_ID: 610 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 611 case WPS_PBC_DIALOG_ID: 612 return MetricsEvent.DIALOG_WIFI_PBC; 613 case WPS_PIN_DIALOG_ID: 614 return MetricsEvent.DIALOG_WIFI_PIN; 615 case WRITE_NFC_DIALOG_ID: 616 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 617 default: 618 return 0; 619 } 620 } 621 622 /** 623 * Shows the latest access points available with supplemental information like 624 * the strength of network and the security for it. 625 */ 626 @Override 627 public void onAccessPointsChanged() { 628 // Safeguard from some delayed event handling 629 if (getActivity() == null) return; 630 if (isUiRestricted()) { 631 removeConnectedAccessPointPreference(); 632 mAccessPointsPreferenceCategory.removeAll(); 633 if (!isUiRestrictedByOnlyAdmin()) { 634 addMessagePreference(R.string.wifi_empty_list_user_restricted); 635 } 636 return; 637 } 638 final int wifiState = mWifiManager.getWifiState(); 639 640 switch (wifiState) { 641 case WifiManager.WIFI_STATE_ENABLED: 642 // AccessPoints are sorted by the WifiTracker 643 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 644 645 boolean hasAvailableAccessPoints = false; 646 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 647 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 648 649 int index = configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 650 boolean fewerNetworksThanLimit = 651 accessPoints.size() <= index + NETWORKS_TO_INITIALLY_SHOW; 652 int numAccessPointsToShow = mSeeAllNetworks || fewerNetworksThanLimit 653 ? accessPoints.size() : index + NETWORKS_TO_INITIALLY_SHOW; 654 655 for (; index < numAccessPointsToShow; index++) { 656 AccessPoint accessPoint = accessPoints.get(index); 657 // Ignore access points that are out of range. 658 if (accessPoint.getLevel() != -1) { 659 String key = accessPoint.getBssid(); 660 if (TextUtils.isEmpty(key)) { 661 key = accessPoint.getSsidStr(); 662 } 663 hasAvailableAccessPoints = true; 664 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 665 getCachedPreference(key); 666 if (pref != null) { 667 pref.setOrder(index); 668 continue; 669 } 670 LongPressAccessPointPreference 671 preference = createLongPressActionPointPreference(accessPoint); 672 preference.setKey(key); 673 preference.setOrder(index); 674 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 675 && !accessPoint.isSaved() 676 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 677 onPreferenceTreeClick(preference); 678 mOpenSsid = null; 679 } 680 mAccessPointsPreferenceCategory.addPreference(preference); 681 accessPoint.setListener(this); 682 preference.refresh(); 683 } 684 } 685 removeCachedPrefs(mAccessPointsPreferenceCategory); 686 if (!hasAvailableAccessPoints) { 687 setProgressBarVisible(true); 688 Preference pref = new Preference(getContext()) { 689 @Override 690 public void onBindViewHolder(PreferenceViewHolder holder) { 691 super.onBindViewHolder(holder); 692 // Show a line on each side of add network. 693 holder.setDividerAllowedBelow(true); 694 } 695 }; 696 pref.setSelectable(false); 697 pref.setSummary(R.string.wifi_empty_list_wifi_on); 698 pref.setOrder(index++); 699 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 700 mAccessPointsPreferenceCategory.addPreference(pref); 701 } else { 702 setProgressBarVisible(false); 703 } 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 if (mScanMenuItem != null) { 715 mScanMenuItem.setEnabled(true); 716 } 717 break; 718 719 case WifiManager.WIFI_STATE_ENABLING: 720 removeConnectedAccessPointPreference(); 721 mAccessPointsPreferenceCategory.removeAll(); 722 setProgressBarVisible(true); 723 break; 724 725 case WifiManager.WIFI_STATE_DISABLING: 726 addMessagePreference(R.string.wifi_stopping); 727 setProgressBarVisible(true); 728 break; 729 730 case WifiManager.WIFI_STATE_DISABLED: 731 setOffMessage(); 732 setConfigureWifiSettingsVisibility(); 733 setProgressBarVisible(false); 734 if (mScanMenuItem != null) { 735 mScanMenuItem.setEnabled(false); 736 } 737 break; 738 } 739 } 740 741 @NonNull 742 private LongPressAccessPointPreference createLongPressActionPointPreference( 743 AccessPoint accessPoint) { 744 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 745 false, R.drawable.ic_wifi_signal_0, this); 746 } 747 748 /** 749 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 750 * shown. 751 */ 752 private boolean configureConnectedAccessPointPreferenceCategory( 753 List<AccessPoint> accessPoints) { 754 if (accessPoints.size() == 0) { 755 removeConnectedAccessPointPreference(); 756 return false; 757 } 758 759 AccessPoint connectedAp = accessPoints.get(0); 760 if (!connectedAp.isActive()) { 761 removeConnectedAccessPointPreference(); 762 return false; 763 } 764 765 // Is the preference category empty? 766 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 767 addConnectedAccessPointPreference(connectedAp); 768 return true; 769 } 770 771 // Is the previous currently connected SSID different from the new one? 772 if (!((AccessPointPreference) 773 mConnectedAccessPointPreferenceCategory.getPreference(0)) 774 .getAccessPoint().getSsidStr().equals( 775 connectedAp.getSsidStr())) { 776 removeConnectedAccessPointPreference(); 777 addConnectedAccessPointPreference(connectedAp); 778 return true; 779 } 780 781 // Else same AP is connected, nothing to do 782 return true; 783 } 784 785 /** 786 * Creates a Preference for the given {@link AccessPoint} and adds it to the 787 * {@link #mConnectedAccessPointPreferenceCategory}. 788 */ 789 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 790 String key = connectedAp.getBssid(); 791 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 792 getCachedPreference(key); 793 if (pref == null) { 794 pref = createLongPressActionPointPreference(connectedAp); 795 } 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 if (isUiRestricted()) { 821 if (!isUiRestrictedByOnlyAdmin()) { 822 addMessagePreference(R.string.wifi_empty_list_user_restricted); 823 } 824 removeConnectedAccessPointPreference(); 825 mAccessPointsPreferenceCategory.removeAll(); 826 return; 827 } 828 829 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 830 831 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 832 // read the system settings directly. Because when the device is in Airplane mode, even if 833 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 834 final ContentResolver resolver = getActivity().getContentResolver(); 835 final boolean wifiScanningMode = Settings.Global.getInt( 836 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 837 838 if (!wifiScanningMode) { 839 // Show only the brief text if the user is not allowed to configure scanning settings, 840 // or the scanning mode has been turned off. 841 mStatusMessagePreference.setTitle(briefText); 842 } else { 843 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 844 @Override 845 public void onClick() { 846 final SettingsActivity activity = (SettingsActivity) getActivity(); 847 activity.startPreferencePanel(ScanningSettings.class.getName(), null, 848 R.string.location_scanning_screen_title, null, null, 0); 849 } 850 }; 851 mStatusMessagePreference.setText( 852 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 853 } 854 removeConnectedAccessPointPreference(); 855 mAccessPointsPreferenceCategory.removeAll(); 856 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 857 } 858 859 private void addMessagePreference(int messageId) { 860 mStatusMessagePreference.setTitle(messageId); 861 removeConnectedAccessPointPreference(); 862 mAccessPointsPreferenceCategory.removeAll(); 863 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 864 } 865 866 protected void setProgressBarVisible(boolean visible) { 867 if (mProgressHeader != null) { 868 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); 869 } 870 } 871 872 @Override 873 public void onWifiStateChanged(int state) { 874 switch (state) { 875 case WifiManager.WIFI_STATE_ENABLING: 876 addMessagePreference(R.string.wifi_starting); 877 setProgressBarVisible(true); 878 break; 879 880 case WifiManager.WIFI_STATE_DISABLED: 881 setOffMessage(); 882 setProgressBarVisible(false); 883 break; 884 } 885 } 886 887 @Override 888 public void onConnectedChanged() { 889 changeNextButtonState(mWifiTracker.isConnected()); 890 } 891 892 /** 893 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 894 * Wifi setup screens, not in usual wifi settings screen. 895 * 896 * @param enabled true when the device is connected to a wifi network. 897 */ 898 private void changeNextButtonState(boolean enabled) { 899 if (mEnableNextOnConnection && hasNextButton()) { 900 getNextButton().setEnabled(enabled); 901 } 902 } 903 904 @Override 905 public void onForget(WifiDialog dialog) { 906 forget(); 907 } 908 909 @Override 910 public void onSubmit(WifiDialog dialog) { 911 if (mDialog != null) { 912 submit(mDialog.getController()); 913 } 914 } 915 916 /* package */ void submit(WifiConfigController configController) { 917 918 final WifiConfiguration config = configController.getConfig(); 919 920 if (config == null) { 921 if (mSelectedAccessPoint != null 922 && mSelectedAccessPoint.isSaved()) { 923 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 924 } 925 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 926 mWifiManager.save(config, mSaveListener); 927 } else { 928 mWifiManager.save(config, mSaveListener); 929 if (mSelectedAccessPoint != null) { // Not an "Add network" 930 connect(config, false /* isSavedNetwork */); 931 } 932 } 933 934 mWifiTracker.resumeScanning(); 935 } 936 937 /* package */ void forget() { 938 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 939 if (!mSelectedAccessPoint.isSaved()) { 940 if (mSelectedAccessPoint.getNetworkInfo() != null && 941 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 942 // Network is active but has no network ID - must be ephemeral. 943 mWifiManager.disableEphemeralNetwork( 944 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 945 } else { 946 // Should not happen, but a monkey seems to trigger it 947 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 948 return; 949 } 950 } else { 951 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 952 } 953 954 mWifiTracker.resumeScanning(); 955 956 // We need to rename/replace "Next" button in wifi setup context. 957 changeNextButtonState(false); 958 } 959 960 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 961 // Log subtype if configuration is a saved network. 962 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 963 isSavedNetwork); 964 mWifiManager.connect(config, mConnectListener); 965 } 966 967 protected void connect(final int networkId, boolean isSavedNetwork) { 968 // Log subtype if configuration is a saved network. 969 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 970 isSavedNetwork); 971 mWifiManager.connect(networkId, mConnectListener); 972 } 973 974 /** 975 * Called when "add network" button is pressed. 976 */ 977 /* package */ void onAddNetworkPressed() { 978 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 979 // No exact access point is selected. 980 mSelectedAccessPoint = null; 981 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 982 } 983 984 @Override 985 protected int getHelpResource() { 986 return R.string.help_url_wifi; 987 } 988 989 @Override 990 public void onAccessPointChanged(final AccessPoint accessPoint) { 991 View view = getView(); 992 if (view != null) { 993 view.post(new Runnable() { 994 @Override 995 public void run() { 996 Object tag = accessPoint.getTag(); 997 if (tag != null) { 998 ((LongPressAccessPointPreference) tag).refresh(); 999 } 1000 } 1001 }); 1002 } 1003 } 1004 1005 @Override 1006 public void onLevelChanged(AccessPoint accessPoint) { 1007 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1008 } 1009 1010 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1011 new BaseSearchIndexProvider() { 1012 @Override 1013 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1014 final List<SearchIndexableRaw> result = new ArrayList<>(); 1015 final Resources res = context.getResources(); 1016 1017 // Add fragment title 1018 SearchIndexableRaw data = new SearchIndexableRaw(context); 1019 data.title = res.getString(R.string.wifi_settings); 1020 data.screenTitle = res.getString(R.string.wifi_settings); 1021 data.keywords = res.getString(R.string.keywords_wifi); 1022 result.add(data); 1023 1024 // Add saved Wi-Fi access points 1025 final List<AccessPoint> accessPoints = 1026 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1027 for (AccessPoint accessPoint : accessPoints) { 1028 data = new SearchIndexableRaw(context); 1029 data.title = accessPoint.getSsidStr(); 1030 data.screenTitle = res.getString(R.string.wifi_settings); 1031 data.enabled = enabled; 1032 result.add(data); 1033 } 1034 1035 return result; 1036 } 1037 }; 1038 1039 /** 1040 * Returns true if the config is not editable through Settings. 1041 * @param context Context of caller 1042 * @param config The WiFi config. 1043 * @return true if the config is not editable through Settings. 1044 */ 1045 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1046 return !canModifyNetwork(context, config); 1047 } 1048 1049 /** 1050 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1051 * TODO: refactor to have only one method. 1052 * @param context Context of caller 1053 * @param config The WiFi config. 1054 * @return true if Settings can modify the config. 1055 */ 1056 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1057 if (config == null) { 1058 return true; 1059 } 1060 1061 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1062 Context.DEVICE_POLICY_SERVICE); 1063 1064 // Check if device has DPM capability. If it has and dpm is still null, then we 1065 // treat this case with suspicion and bail out. 1066 final PackageManager pm = context.getPackageManager(); 1067 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1068 return false; 1069 } 1070 1071 boolean isConfigEligibleForLockdown = false; 1072 if (dpm != null) { 1073 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1074 if (deviceOwner != null) { 1075 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1076 try { 1077 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1078 deviceOwnerUserId); 1079 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1080 } catch (NameNotFoundException e) { 1081 // don't care 1082 } 1083 } 1084 } 1085 if (!isConfigEligibleForLockdown) { 1086 return true; 1087 } 1088 1089 final ContentResolver resolver = context.getContentResolver(); 1090 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1091 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1092 return !isLockdownFeatureEnabled; 1093 } 1094 1095 private static class SummaryProvider 1096 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1097 1098 private final Context mContext; 1099 private final SummaryLoader mSummaryLoader; 1100 1101 @VisibleForTesting 1102 WifiSummaryUpdater mSummaryHelper; 1103 1104 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1105 mContext = context; 1106 mSummaryLoader = summaryLoader; 1107 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1108 } 1109 1110 1111 @Override 1112 public void setListening(boolean listening) { 1113 mSummaryHelper.register(listening); 1114 } 1115 1116 @Override 1117 public void onSummaryChanged(String summary) { 1118 mSummaryLoader.setSummary(this, summary); 1119 } 1120 } 1121 1122 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1123 = new SummaryLoader.SummaryProviderFactory() { 1124 @Override 1125 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1126 SummaryLoader summaryLoader) { 1127 return new SummaryProvider(activity, summaryLoader); 1128 } 1129 }; 1130} 1131