WifiSettings.java revision 9f5aaa4e5f18b6445efdf7931b85cad03d1a13c4
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.MenuItem; 52import android.view.View; 53import android.widget.ProgressBar; 54import android.widget.Toast; 55 56import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 57import com.android.settings.LinkifyUtils; 58import com.android.settings.R; 59import com.android.settings.RestrictedSettingsFragment; 60import com.android.settings.SettingsActivity; 61import com.android.settings.dashboard.SummaryLoader; 62import com.android.settings.location.ScanningSettings; 63import com.android.settings.search.BaseSearchIndexProvider; 64import com.android.settings.search.Indexable; 65import com.android.settings.search.SearchIndexableRaw; 66import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 67import com.android.settings.widget.SwitchBarController; 68import com.android.settingslib.RestrictedLockUtils; 69import com.android.settingslib.wifi.AccessPoint; 70import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 71import com.android.settingslib.wifi.AccessPointPreference; 72import com.android.settingslib.wifi.WifiTracker; 73 74import java.util.ArrayList; 75import java.util.List; 76 77import static android.os.UserManager.DISALLOW_CONFIG_WIFI; 78 79/** 80 * Two types of UI are provided here. 81 * 82 * The first is for "usual Settings", appearing as any other Setup fragment. 83 * 84 * The second is for Setup Wizard, with a simplified interface that hides the action bar 85 * and menus. 86 */ 87public class WifiSettings extends RestrictedSettingsFragment 88 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 89 WifiDialog.WifiDialogListener { 90 91 private static final String TAG = "WifiSettings"; 92 93 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 94 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 95 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 96 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 97 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 98 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 99 100 public static final int WIFI_DIALOG_ID = 1; 101 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 102 private static final int WPS_PIN_DIALOG_ID = 3; 103 private static final int WRITE_NFC_DIALOG_ID = 6; 104 105 // Instance state keys 106 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 107 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 108 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 109 110 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 111 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 112 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 113 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 114 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 115 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 116 117 protected WifiManager mWifiManager; 118 private WifiManager.ActionListener mConnectListener; 119 private WifiManager.ActionListener mSaveListener; 120 private WifiManager.ActionListener mForgetListener; 121 122 private WifiEnabler mWifiEnabler; 123 // An access point being editted is stored here. 124 private AccessPoint mSelectedAccessPoint; 125 126 private WifiDialog mDialog; 127 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 128 129 private ProgressBar mProgressHeader; 130 131 // this boolean extra specifies whether to disable the Next button when not connected. Used by 132 // account creation outside of setup wizard. 133 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 134 // This string extra specifies a network to open the connect dialog on, so the user can enter 135 // network credentials. This is used by quick settings for secured networks. 136 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 137 138 // should Next button only be enabled when we have a connection? 139 private boolean mEnableNextOnConnection; 140 141 // should see all networks instead of collapsing networks and showing mSeeAllNetworksPreference. 142 private boolean mSeeAllNetworks; 143 private static final int NETWORKS_TO_INITIALLY_SHOW = 5; 144 145 // Save the dialog details 146 private int mDialogMode; 147 private AccessPoint mDlgAccessPoint; 148 private Bundle mAccessPointSavedState; 149 private Bundle mWifiNfcDialogSavedState; 150 151 private WifiTracker mWifiTracker; 152 private String mOpenSsid; 153 154 private HandlerThread mBgThread; 155 156 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 157 158 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 159 private PreferenceCategory mAccessPointsPreferenceCategory; 160 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 161 private Preference mAddPreference; 162 private Preference mSeeAllNetworksPreference; 163 private Preference mConfigureWifiSettingsPreference; 164 private Preference mSavedNetworksPreference; 165 private LinkablePreference mStatusMessagePreference; 166 167 // For Search 168 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 169 170 /* End of "used in Wifi Setup context" */ 171 172 public WifiSettings() { 173 super(DISALLOW_CONFIG_WIFI); 174 } 175 176 @Override 177 public void onViewCreated(View view, Bundle savedInstanceState) { 178 super.onViewCreated(view, savedInstanceState); 179 final Activity activity = getActivity(); 180 if (activity != null) { 181 if (!isUiRestricted()) { 182 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 183 } 184 } 185 } 186 187 @Override 188 public void onCreate(Bundle icicle) { 189 super.onCreate(icicle); 190 getPreferenceManager().setPreferenceComparisonCallback( 191 new PreferenceManager.SimplePreferenceComparisonCallback()); 192 addPreferencesFromResource(R.xml.wifi_settings); 193 194 mConnectedAccessPointPreferenceCategory = 195 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 196 197 mAccessPointsPreferenceCategory = 198 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 199 mAdditionalSettingsPreferenceCategory = 200 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 201 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 202 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 203 204 if (isUiRestricted()) { 205 getPreferenceScreen().removePreference(mAdditionalSettingsPreferenceCategory); 206 } 207 208 Context prefContext = getPrefContext(); 209 mAddPreference = new Preference(prefContext); 210 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 211 mAddPreference.setTitle(R.string.wifi_add_network); 212 mSeeAllNetworksPreference = new Preference(prefContext); 213 mSeeAllNetworksPreference.setIcon(R.drawable.ic_arrow_down_24dp); 214 mSeeAllNetworksPreference.setTitle(R.string.wifi_see_all_networks_button_title); 215 mSeeAllNetworks = false; 216 mStatusMessagePreference = new LinkablePreference(prefContext); 217 218 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 219 220 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 221 mBgThread.start(); 222 } 223 224 @Override 225 public void onDestroy() { 226 mBgThread.quit(); 227 super.onDestroy(); 228 } 229 230 @Override 231 public void onActivityCreated(Bundle savedInstanceState) { 232 super.onActivityCreated(savedInstanceState); 233 234 mWifiTracker = 235 new WifiTracker(getActivity(), this, mBgThread.getLooper(), true, true, false); 236 mWifiManager = mWifiTracker.getManager(); 237 238 mConnectListener = new WifiManager.ActionListener() { 239 @Override 240 public void onSuccess() { 241 } 242 @Override 243 public void onFailure(int reason) { 244 Activity activity = getActivity(); 245 if (activity != null) { 246 Toast.makeText(activity, 247 R.string.wifi_failed_connect_message, 248 Toast.LENGTH_SHORT).show(); 249 } 250 } 251 }; 252 253 mSaveListener = new WifiManager.ActionListener() { 254 @Override 255 public void onSuccess() { 256 } 257 @Override 258 public void onFailure(int reason) { 259 Activity activity = getActivity(); 260 if (activity != null) { 261 Toast.makeText(activity, 262 R.string.wifi_failed_save_message, 263 Toast.LENGTH_SHORT).show(); 264 } 265 } 266 }; 267 268 mForgetListener = new WifiManager.ActionListener() { 269 @Override 270 public void onSuccess() { 271 } 272 @Override 273 public void onFailure(int reason) { 274 Activity activity = getActivity(); 275 if (activity != null) { 276 Toast.makeText(activity, 277 R.string.wifi_failed_forget_message, 278 Toast.LENGTH_SHORT).show(); 279 } 280 } 281 }; 282 283 if (savedInstanceState != null) { 284 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 285 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 286 mAccessPointSavedState = 287 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 288 } 289 290 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 291 mWifiNfcDialogSavedState = 292 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 293 } 294 } 295 296 // if we're supposed to enable/disable the Next button based on our current connection 297 // state, start it off in the right state 298 Intent intent = getActivity().getIntent(); 299 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 300 301 if (mEnableNextOnConnection) { 302 if (hasNextButton()) { 303 final ConnectivityManager connectivity = (ConnectivityManager) 304 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 305 if (connectivity != null) { 306 NetworkInfo info = connectivity.getNetworkInfo( 307 ConnectivityManager.TYPE_WIFI); 308 changeNextButtonState(info.isConnected()); 309 } 310 } 311 } 312 313 registerForContextMenu(getListView()); 314 setHasOptionsMenu(true); 315 316 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 317 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 318 onAccessPointsChanged(); 319 } 320 } 321 322 @Override 323 public void onDestroyView() { 324 super.onDestroyView(); 325 326 if (mWifiEnabler != null) { 327 mWifiEnabler.teardownSwitchController(); 328 } 329 } 330 331 @Override 332 public void onStart() { 333 super.onStart(); 334 335 // On/off switch is hidden for Setup Wizard (returns null) 336 mWifiEnabler = createWifiEnabler(); 337 } 338 339 /** 340 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 341 */ 342 private WifiEnabler createWifiEnabler() { 343 final SettingsActivity activity = (SettingsActivity) getActivity(); 344 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 345 mMetricsFeatureProvider); 346 } 347 348 @Override 349 public void onResume() { 350 final Activity activity = getActivity(); 351 super.onResume(); 352 if (mWifiEnabler != null) { 353 mWifiEnabler.resume(activity); 354 } 355 356 mWifiTracker.startTracking(); 357 activity.invalidateOptionsMenu(); 358 } 359 360 @Override 361 public void onPause() { 362 super.onPause(); 363 if (mWifiEnabler != null) { 364 mWifiEnabler.pause(); 365 } 366 367 mWifiTracker.stopTracking(); 368 } 369 370 @Override 371 public int getMetricsCategory() { 372 return MetricsEvent.WIFI; 373 } 374 375 @Override 376 public void onSaveInstanceState(Bundle outState) { 377 super.onSaveInstanceState(outState); 378 379 // If the dialog is showing, save its state. 380 if (mDialog != null && mDialog.isShowing()) { 381 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 382 if (mDlgAccessPoint != null) { 383 mAccessPointSavedState = new Bundle(); 384 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 385 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 386 } 387 } 388 389 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 390 Bundle savedState = new Bundle(); 391 mWifiToNfcDialog.saveState(savedState); 392 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 393 } 394 } 395 396 @Override 397 public boolean onOptionsItemSelected(MenuItem item) { 398 // If the user is not allowed to configure wifi, do not handle menu selections. 399 if (isUiRestricted()) return false; 400 401 switch (item.getItemId()) { 402 case MENU_ID_WPS_PBC: 403 showDialog(WPS_PBC_DIALOG_ID); 404 return true; 405 /* 406 case MENU_ID_P2P: 407 if (getActivity() instanceof SettingsActivity) { 408 ((SettingsActivity) getActivity()).startPreferencePanel( 409 WifiP2pSettings.class.getCanonicalName(), 410 null, 411 R.string.wifi_p2p_settings_title, null, 412 this, 0); 413 } else { 414 startFragment(this, WifiP2pSettings.class.getCanonicalName(), 415 R.string.wifi_p2p_settings_title, -1, null); 416 } 417 return true; 418 */ 419 case MENU_ID_WPS_PIN: 420 showDialog(WPS_PIN_DIALOG_ID); 421 return true; 422 } 423 return super.onOptionsItemSelected(item); 424 } 425 426 @Override 427 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 428 Preference preference = (Preference) view.getTag(); 429 430 if (preference instanceof LongPressAccessPointPreference) { 431 mSelectedAccessPoint = 432 ((LongPressAccessPointPreference) preference).getAccessPoint(); 433 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 434 if (mSelectedAccessPoint.isConnectable()) { 435 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 436 } 437 438 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 439 // Some configs are ineditable 440 if (isEditabilityLockedDown(getActivity(), config)) { 441 return; 442 } 443 444 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 445 // Allow forgetting a network if either the network is saved or ephemerally 446 // connected. (In the latter case, "forget" blacklists the network so it won't 447 // be used again, ephemerally). 448 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 449 } 450 if (mSelectedAccessPoint.isSaved()) { 451 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 452 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 453 if (nfcAdapter != null && nfcAdapter.isEnabled() && 454 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 455 // Only allow writing of NFC tags for password-protected networks. 456 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 457 } 458 } 459 } 460 } 461 462 @Override 463 public boolean onContextItemSelected(MenuItem item) { 464 if (mSelectedAccessPoint == null) { 465 return super.onContextItemSelected(item); 466 } 467 switch (item.getItemId()) { 468 case MENU_ID_CONNECT: { 469 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 470 if (isSavedNetwork) { 471 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 472 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 473 /** Bypass dialog for unsecured networks */ 474 mSelectedAccessPoint.generateOpenNetworkConfig(); 475 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 476 } else { 477 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 478 } 479 return true; 480 } 481 case MENU_ID_FORGET: { 482 forget(); 483 return true; 484 } 485 case MENU_ID_MODIFY: { 486 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 487 return true; 488 } 489 case MENU_ID_WRITE_NFC: 490 showDialog(WRITE_NFC_DIALOG_ID); 491 return true; 492 493 } 494 return super.onContextItemSelected(item); 495 } 496 497 @Override 498 public boolean onPreferenceTreeClick(Preference preference) { 499 if (preference instanceof LongPressAccessPointPreference) { 500 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 501 if (mSelectedAccessPoint == null) { 502 return false; 503 } 504 /** Bypass dialog for unsecured, unsaved, and inactive networks */ 505 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE && 506 !mSelectedAccessPoint.isSaved() && !mSelectedAccessPoint.isActive()) { 507 mSelectedAccessPoint.generateOpenNetworkConfig(); 508 connect(mSelectedAccessPoint.getConfig(), false /* isSavedNetwork */); 509 } else if (mSelectedAccessPoint.isSaved()) { 510 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_VIEW); 511 } else { 512 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 513 } 514 } else if (preference == mAddPreference) { 515 onAddNetworkPressed(); 516 } else if (preference == mSeeAllNetworksPreference) { 517 mSeeAllNetworks = true; 518 onAccessPointsChanged(); 519 } else { 520 return super.onPreferenceTreeClick(preference); 521 } 522 return true; 523 } 524 525 private void showDialog(AccessPoint accessPoint, int dialogMode) { 526 if (accessPoint != null) { 527 WifiConfiguration config = accessPoint.getConfig(); 528 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 529 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 530 RestrictedLockUtils.getDeviceOwner(getActivity())); 531 return; 532 } 533 } 534 535 if (mDialog != null) { 536 removeDialog(WIFI_DIALOG_ID); 537 mDialog = null; 538 } 539 540 // Save the access point and edit mode 541 mDlgAccessPoint = accessPoint; 542 mDialogMode = dialogMode; 543 544 showDialog(WIFI_DIALOG_ID); 545 } 546 547 @Override 548 public Dialog onCreateDialog(int dialogId) { 549 switch (dialogId) { 550 case WIFI_DIALOG_ID: 551 AccessPoint ap = mDlgAccessPoint; // For manual launch 552 if (ap == null) { // For re-launch from saved state 553 if (mAccessPointSavedState != null) { 554 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 555 // For repeated orientation changes 556 mDlgAccessPoint = ap; 557 // Reset the saved access point data 558 mAccessPointSavedState = null; 559 } 560 } 561 // If it's null, fine, it's for Add Network 562 mSelectedAccessPoint = ap; 563 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 564 /* no hide submit/connect */ false); 565 return mDialog; 566 case WPS_PBC_DIALOG_ID: 567 return new WpsDialog(getActivity(), WpsInfo.PBC); 568 case WPS_PIN_DIALOG_ID: 569 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 570 case WRITE_NFC_DIALOG_ID: 571 if (mSelectedAccessPoint != null) { 572 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 573 getActivity(), mSelectedAccessPoint.getConfig().networkId, 574 mSelectedAccessPoint.getSecurity(), 575 mWifiManager); 576 } else if (mWifiNfcDialogSavedState != null) { 577 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 578 getActivity(), mWifiNfcDialogSavedState, mWifiManager); 579 } 580 581 return mWifiToNfcDialog; 582 } 583 return super.onCreateDialog(dialogId); 584 } 585 586 @Override 587 public int getDialogMetricsCategory(int dialogId) { 588 switch (dialogId) { 589 case WIFI_DIALOG_ID: 590 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 591 case WPS_PBC_DIALOG_ID: 592 return MetricsEvent.DIALOG_WIFI_PBC; 593 case WPS_PIN_DIALOG_ID: 594 return MetricsEvent.DIALOG_WIFI_PIN; 595 case WRITE_NFC_DIALOG_ID: 596 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 597 default: 598 return 0; 599 } 600 } 601 602 /** 603 * Shows the latest access points available with supplemental information like 604 * the strength of network and the security for it. 605 */ 606 @Override 607 public void onAccessPointsChanged() { 608 // Safeguard from some delayed event handling 609 if (getActivity() == null) return; 610 if (isUiRestricted()) { 611 removeConnectedAccessPointPreference(); 612 mAccessPointsPreferenceCategory.removeAll(); 613 if (!isUiRestrictedByOnlyAdmin()) { 614 addMessagePreference(R.string.wifi_empty_list_user_restricted); 615 } 616 return; 617 } 618 final int wifiState = mWifiManager.getWifiState(); 619 620 switch (wifiState) { 621 case WifiManager.WIFI_STATE_ENABLED: 622 // AccessPoints are sorted by the WifiTracker 623 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 624 625 boolean hasAvailableAccessPoints = false; 626 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 627 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 628 629 int index = configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 630 boolean fewerNetworksThanLimit = 631 accessPoints.size() <= index + NETWORKS_TO_INITIALLY_SHOW; 632 int numAccessPointsToShow = mSeeAllNetworks || fewerNetworksThanLimit 633 ? accessPoints.size() : index + NETWORKS_TO_INITIALLY_SHOW; 634 635 for (; index < numAccessPointsToShow; index++) { 636 AccessPoint accessPoint = accessPoints.get(index); 637 // Ignore access points that are out of range. 638 if (accessPoint.getLevel() != -1) { 639 String key = accessPoint.getBssid(); 640 if (TextUtils.isEmpty(key)) { 641 key = accessPoint.getSsidStr(); 642 } 643 hasAvailableAccessPoints = true; 644 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 645 getCachedPreference(key); 646 if (pref != null) { 647 pref.setOrder(index); 648 continue; 649 } 650 LongPressAccessPointPreference 651 preference = createLongPressActionPointPreference(accessPoint); 652 preference.setKey(key); 653 preference.setOrder(index); 654 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 655 && !accessPoint.isSaved() 656 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 657 onPreferenceTreeClick(preference); 658 mOpenSsid = null; 659 } 660 mAccessPointsPreferenceCategory.addPreference(preference); 661 accessPoint.setListener(this); 662 preference.refresh(); 663 } 664 } 665 removeCachedPrefs(mAccessPointsPreferenceCategory); 666 if (!hasAvailableAccessPoints) { 667 setProgressBarVisible(true); 668 Preference pref = new Preference(getContext()) { 669 @Override 670 public void onBindViewHolder(PreferenceViewHolder holder) { 671 super.onBindViewHolder(holder); 672 // Show a line on each side of add network. 673 holder.setDividerAllowedBelow(true); 674 } 675 }; 676 pref.setSelectable(false); 677 pref.setSummary(R.string.wifi_empty_list_wifi_on); 678 pref.setOrder(index++); 679 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 680 mAccessPointsPreferenceCategory.addPreference(pref); 681 } else { 682 setProgressBarVisible(false); 683 } 684 if (mSeeAllNetworks || fewerNetworksThanLimit) { 685 mAccessPointsPreferenceCategory.removePreference(mSeeAllNetworksPreference); 686 mAddPreference.setOrder(index); 687 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 688 } else { 689 mAccessPointsPreferenceCategory.removePreference(mAddPreference); 690 mSeeAllNetworksPreference.setOrder(index); 691 mAccessPointsPreferenceCategory.addPreference(mSeeAllNetworksPreference); 692 } 693 setConfigureWifiSettingsVisibility(); 694 break; 695 696 case WifiManager.WIFI_STATE_ENABLING: 697 removeConnectedAccessPointPreference(); 698 mAccessPointsPreferenceCategory.removeAll(); 699 setProgressBarVisible(true); 700 break; 701 702 case WifiManager.WIFI_STATE_DISABLING: 703 addMessagePreference(R.string.wifi_stopping); 704 setProgressBarVisible(true); 705 break; 706 707 case WifiManager.WIFI_STATE_DISABLED: 708 setOffMessage(); 709 setConfigureWifiSettingsVisibility(); 710 setProgressBarVisible(false); 711 break; 712 } 713 } 714 715 @NonNull 716 private LongPressAccessPointPreference createLongPressActionPointPreference( 717 AccessPoint accessPoint) { 718 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 719 false, R.drawable.ic_wifi_signal_0, this); 720 } 721 722 /** 723 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 724 * shown. 725 */ 726 private boolean configureConnectedAccessPointPreferenceCategory( 727 List<AccessPoint> accessPoints) { 728 if (accessPoints.size() == 0) { 729 removeConnectedAccessPointPreference(); 730 return false; 731 } 732 733 AccessPoint connectedAp = accessPoints.get(0); 734 if (!connectedAp.isActive()) { 735 removeConnectedAccessPointPreference(); 736 return false; 737 } 738 739 // Is the preference category empty? 740 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 741 addConnectedAccessPointPreference(connectedAp); 742 return true; 743 } 744 745 // Is the previous currently connected SSID different from the new one? 746 if (!((AccessPointPreference) 747 mConnectedAccessPointPreferenceCategory.getPreference(0)) 748 .getAccessPoint().getSsidStr().equals( 749 connectedAp.getSsidStr())) { 750 removeConnectedAccessPointPreference(); 751 addConnectedAccessPointPreference(connectedAp); 752 return true; 753 } 754 755 // Else same AP is connected, nothing to do 756 return true; 757 } 758 759 /** 760 * Creates a Preference for the given {@link AccessPoint} and adds it to the 761 * {@link #mConnectedAccessPointPreferenceCategory}. 762 */ 763 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 764 String key = connectedAp.getBssid(); 765 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 766 getCachedPreference(key); 767 if (pref == null) { 768 pref = createLongPressActionPointPreference(connectedAp); 769 } 770 pref.refresh(); 771 mConnectedAccessPointPreferenceCategory.addPreference(pref); 772 mConnectedAccessPointPreferenceCategory.setVisible(true); 773 } 774 775 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 776 private void removeConnectedAccessPointPreference() { 777 mConnectedAccessPointPreferenceCategory.removeAll(); 778 mConnectedAccessPointPreferenceCategory.setVisible(false); 779 } 780 781 private void setConfigureWifiSettingsVisibility() { 782 if (isUiRestricted()) { 783 mAdditionalSettingsPreferenceCategory.removeAll(); 784 return; 785 } 786 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 787 if (mWifiTracker.doSavedNetworksExist()) { 788 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 789 } else { 790 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 791 } 792 } 793 794 private void setOffMessage() { 795 if (isUiRestricted()) { 796 removeConnectedAccessPointPreference(); 797 mAccessPointsPreferenceCategory.removeAll(); 798 if (!isUiRestrictedByOnlyAdmin()) { 799 addMessagePreference(R.string.wifi_empty_list_user_restricted); 800 } 801 return; 802 } 803 804 final CharSequence briefText = getText(R.string.wifi_empty_list_wifi_off); 805 806 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 807 // read the system settings directly. Because when the device is in Airplane mode, even if 808 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 809 final ContentResolver resolver = getActivity().getContentResolver(); 810 final boolean wifiScanningMode = Settings.Global.getInt( 811 resolver, Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 812 813 if (!wifiScanningMode) { 814 // Show only the brief text if the user is not allowed to configure scanning settings, 815 // or the scanning mode has been turned off. 816 mStatusMessagePreference.setTitle(briefText); 817 } else { 818 LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 819 @Override 820 public void onClick() { 821 final SettingsActivity activity = (SettingsActivity) getActivity(); 822 activity.startPreferencePanel(WifiSettings.this, 823 ScanningSettings.class.getName(), 824 null, R.string.location_scanning_screen_title, null, null, 0); 825 } 826 }; 827 mStatusMessagePreference.setText( 828 briefText, getText(R.string.wifi_scan_notify_text), clickListener); 829 } 830 removeConnectedAccessPointPreference(); 831 mAccessPointsPreferenceCategory.removeAll(); 832 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 833 } 834 835 private void addMessagePreference(int messageId) { 836 mStatusMessagePreference.setTitle(messageId); 837 removeConnectedAccessPointPreference(); 838 mAccessPointsPreferenceCategory.removeAll(); 839 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 840 } 841 842 protected void setProgressBarVisible(boolean visible) { 843 if (mProgressHeader != null) { 844 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); 845 } 846 } 847 848 @Override 849 public void onWifiStateChanged(int state) { 850 switch (state) { 851 case WifiManager.WIFI_STATE_ENABLING: 852 addMessagePreference(R.string.wifi_starting); 853 setProgressBarVisible(true); 854 break; 855 856 case WifiManager.WIFI_STATE_DISABLED: 857 setOffMessage(); 858 setProgressBarVisible(false); 859 break; 860 } 861 } 862 863 @Override 864 public void onConnectedChanged() { 865 changeNextButtonState(mWifiTracker.isConnected()); 866 } 867 868 /** 869 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 870 * Wifi setup screens, not in usual wifi settings screen. 871 * 872 * @param enabled true when the device is connected to a wifi network. 873 */ 874 private void changeNextButtonState(boolean enabled) { 875 if (mEnableNextOnConnection && hasNextButton()) { 876 getNextButton().setEnabled(enabled); 877 } 878 } 879 880 @Override 881 public void onForget(WifiDialog dialog) { 882 forget(); 883 } 884 885 @Override 886 public void onSubmit(WifiDialog dialog) { 887 if (mDialog != null) { 888 submit(mDialog.getController()); 889 } 890 } 891 892 /* package */ void submit(WifiConfigController configController) { 893 894 final WifiConfiguration config = configController.getConfig(); 895 896 if (config == null) { 897 if (mSelectedAccessPoint != null 898 && mSelectedAccessPoint.isSaved()) { 899 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 900 } 901 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 902 mWifiManager.save(config, mSaveListener); 903 } else { 904 mWifiManager.save(config, mSaveListener); 905 if (mSelectedAccessPoint != null) { // Not an "Add network" 906 connect(config, false /* isSavedNetwork */); 907 } 908 } 909 910 mWifiTracker.resumeScanning(); 911 } 912 913 /* package */ void forget() { 914 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 915 if (!mSelectedAccessPoint.isSaved()) { 916 if (mSelectedAccessPoint.getNetworkInfo() != null && 917 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 918 // Network is active but has no network ID - must be ephemeral. 919 mWifiManager.disableEphemeralNetwork( 920 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 921 } else { 922 // Should not happen, but a monkey seems to trigger it 923 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 924 return; 925 } 926 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 927 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 928 } else { 929 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 930 } 931 932 mWifiTracker.resumeScanning(); 933 934 // We need to rename/replace "Next" button in wifi setup context. 935 changeNextButtonState(false); 936 } 937 938 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 939 // Log subtype if configuration is a saved network. 940 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 941 isSavedNetwork); 942 mWifiManager.connect(config, mConnectListener); 943 } 944 945 protected void connect(final int networkId, boolean isSavedNetwork) { 946 // Log subtype if configuration is a saved network. 947 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 948 isSavedNetwork); 949 mWifiManager.connect(networkId, mConnectListener); 950 } 951 952 /** 953 * Called when "add network" button is pressed. 954 */ 955 /* package */ void onAddNetworkPressed() { 956 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 957 // No exact access point is selected. 958 mSelectedAccessPoint = null; 959 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 960 } 961 962 @Override 963 protected int getHelpResource() { 964 return R.string.help_url_wifi; 965 } 966 967 @Override 968 public void onAccessPointChanged(final AccessPoint accessPoint) { 969 View view = getView(); 970 if (view != null) { 971 view.post(new Runnable() { 972 @Override 973 public void run() { 974 Object tag = accessPoint.getTag(); 975 if (tag != null) { 976 ((LongPressAccessPointPreference) tag).refresh(); 977 } 978 } 979 }); 980 } 981 } 982 983 @Override 984 public void onLevelChanged(AccessPoint accessPoint) { 985 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 986 } 987 988 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 989 new BaseSearchIndexProvider() { 990 @Override 991 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 992 final List<SearchIndexableRaw> result = new ArrayList<>(); 993 final Resources res = context.getResources(); 994 995 // Add fragment title 996 SearchIndexableRaw data = new SearchIndexableRaw(context); 997 data.title = res.getString(R.string.wifi_settings); 998 data.screenTitle = res.getString(R.string.wifi_settings); 999 data.keywords = res.getString(R.string.keywords_wifi); 1000 data.key = DATA_KEY_REFERENCE; 1001 result.add(data); 1002 1003 // Add saved Wi-Fi access points 1004 final List<AccessPoint> accessPoints = 1005 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1006 for (AccessPoint accessPoint : accessPoints) { 1007 data = new SearchIndexableRaw(context); 1008 data.title = accessPoint.getSsidStr(); 1009 data.screenTitle = res.getString(R.string.wifi_settings); 1010 data.enabled = enabled; 1011 result.add(data); 1012 } 1013 1014 return result; 1015 } 1016 }; 1017 1018 /** 1019 * Returns true if the config is not editable through Settings. 1020 * @param context Context of caller 1021 * @param config The WiFi config. 1022 * @return true if the config is not editable through Settings. 1023 */ 1024 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1025 return !canModifyNetwork(context, config); 1026 } 1027 1028 /** 1029 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1030 * TODO: refactor to have only one method. 1031 * @param context Context of caller 1032 * @param config The WiFi config. 1033 * @return true if Settings can modify the config. 1034 */ 1035 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1036 if (config == null) { 1037 return true; 1038 } 1039 1040 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1041 Context.DEVICE_POLICY_SERVICE); 1042 1043 // Check if device has DPM capability. If it has and dpm is still null, then we 1044 // treat this case with suspicion and bail out. 1045 final PackageManager pm = context.getPackageManager(); 1046 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1047 return false; 1048 } 1049 1050 boolean isConfigEligibleForLockdown = false; 1051 if (dpm != null) { 1052 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1053 if (deviceOwner != null) { 1054 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1055 try { 1056 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1057 deviceOwnerUserId); 1058 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1059 } catch (NameNotFoundException e) { 1060 // don't care 1061 } 1062 } 1063 } 1064 if (!isConfigEligibleForLockdown) { 1065 return true; 1066 } 1067 1068 final ContentResolver resolver = context.getContentResolver(); 1069 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1070 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1071 return !isLockdownFeatureEnabled; 1072 } 1073 1074 private static class SummaryProvider 1075 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1076 1077 private final Context mContext; 1078 private final SummaryLoader mSummaryLoader; 1079 1080 @VisibleForTesting 1081 WifiSummaryUpdater mSummaryHelper; 1082 1083 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1084 mContext = context; 1085 mSummaryLoader = summaryLoader; 1086 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1087 } 1088 1089 1090 @Override 1091 public void setListening(boolean listening) { 1092 mSummaryHelper.register(listening); 1093 } 1094 1095 @Override 1096 public void onSummaryChanged(String summary) { 1097 mSummaryLoader.setSummary(this, summary); 1098 } 1099 } 1100 1101 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1102 = new SummaryLoader.SummaryProviderFactory() { 1103 @Override 1104 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1105 SummaryLoader summaryLoader) { 1106 return new SummaryProvider(activity, summaryLoader); 1107 } 1108 }; 1109} 1110