WifiSettings.java revision d6db6d89388ae2b66fb3eb819eed2bdfba4ee9ad
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 static android.os.UserManager.DISALLOW_CONFIG_WIFI; 20 21import android.annotation.NonNull; 22import android.app.Activity; 23import android.app.Dialog; 24import android.app.admin.DevicePolicyManager; 25import android.content.ComponentName; 26import android.content.ContentResolver; 27import android.content.Context; 28import android.content.Intent; 29import android.content.pm.PackageManager; 30import android.content.pm.PackageManager.NameNotFoundException; 31import android.content.res.Resources; 32import android.net.ConnectivityManager; 33import android.net.NetworkInfo; 34import android.net.NetworkInfo.State; 35import android.net.wifi.WifiConfiguration; 36import android.net.wifi.WifiManager; 37import android.net.wifi.WpsInfo; 38import android.nfc.NfcAdapter; 39import android.os.Bundle; 40import android.os.HandlerThread; 41import android.os.Process; 42import android.provider.Settings; 43import android.support.annotation.VisibleForTesting; 44import android.support.v7.preference.Preference; 45import android.support.v7.preference.PreferenceCategory; 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.settings.wifi.details.WifiNetworkDetailsFragment; 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; 74import com.android.settingslib.wifi.WifiTrackerFactory; 75 76import java.util.ArrayList; 77import java.util.List; 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 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 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_CONNECT = Menu.FIRST + 6; 97 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 98 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 99 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 100 101 public static final int WIFI_DIALOG_ID = 1; 102 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 103 private static final int WPS_PIN_DIALOG_ID = 3; 104 private static final int WRITE_NFC_DIALOG_ID = 6; 105 106 // Instance state keys 107 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 108 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 109 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 110 111 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 112 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 113 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 114 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 115 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 116 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 117 118 private final Runnable mUpdateAccessPointsRunnable = () -> { 119 updateAccessPointPreferences(); 120 }; 121 private final Runnable mHideProgressBarRunnable = () -> { 122 setProgressBarVisible(false); 123 }; 124 125 protected WifiManager mWifiManager; 126 private WifiManager.ActionListener mConnectListener; 127 private WifiManager.ActionListener mSaveListener; 128 private WifiManager.ActionListener mForgetListener; 129 130 /** 131 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 132 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 133 * by the Test DPC tool in AFW mode. 134 */ 135 private boolean mIsRestricted; 136 137 private WifiEnabler mWifiEnabler; 138 // An access point being editted is stored here. 139 private AccessPoint mSelectedAccessPoint; 140 141 private WifiDialog mDialog; 142 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 143 144 private ProgressBar mProgressHeader; 145 146 // this boolean extra specifies whether to disable the Next button when not connected. Used by 147 // account creation outside of setup wizard. 148 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 149 // This string extra specifies a network to open the connect dialog on, so the user can enter 150 // network credentials. This is used by quick settings for secured networks. 151 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 152 153 // should Next button only be enabled when we have a connection? 154 private boolean mEnableNextOnConnection; 155 156 // Save the dialog details 157 private int mDialogMode; 158 private AccessPoint mDlgAccessPoint; 159 private Bundle mAccessPointSavedState; 160 private Bundle mWifiNfcDialogSavedState; 161 162 private WifiTracker mWifiTracker; 163 private String mOpenSsid; 164 165 private HandlerThread mBgThread; 166 167 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 168 169 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 170 private PreferenceCategory mAccessPointsPreferenceCategory; 171 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 172 private Preference mAddPreference; 173 private Preference mConfigureWifiSettingsPreference; 174 private Preference mSavedNetworksPreference; 175 private LinkablePreference mStatusMessagePreference; 176 177 // For Search 178 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 179 180 /* End of "used in Wifi Setup context" */ 181 182 public WifiSettings() { 183 super(DISALLOW_CONFIG_WIFI); 184 } 185 186 @Override 187 public void onViewCreated(View view, Bundle savedInstanceState) { 188 super.onViewCreated(view, savedInstanceState); 189 final Activity activity = getActivity(); 190 if (activity != null) { 191 mProgressHeader = (ProgressBar) setPinnedHeaderView(R.layout.wifi_progress_header); 192 setProgressBarVisible(false); 193 } 194 } 195 196 @Override 197 public void onCreate(Bundle icicle) { 198 super.onCreate(icicle); 199 200 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 201 // loaded (ODR). 202 setAnimationAllowed(false); 203 204 addPreferencesFromResource(R.xml.wifi_settings); 205 206 mConnectedAccessPointPreferenceCategory = 207 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 208 mAccessPointsPreferenceCategory = 209 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 210 mAdditionalSettingsPreferenceCategory = 211 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 212 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 213 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 214 215 Context prefContext = getPrefContext(); 216 mAddPreference = new Preference(prefContext); 217 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 218 mAddPreference.setTitle(R.string.wifi_add_network); 219 mStatusMessagePreference = new LinkablePreference(prefContext); 220 221 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 222 223 mIsRestricted = isUiRestricted(); 224 225 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 226 mBgThread.start(); 227 } 228 229 @Override 230 public void onDestroy() { 231 mBgThread.quit(); 232 super.onDestroy(); 233 } 234 235 @Override 236 public void onActivityCreated(Bundle savedInstanceState) { 237 super.onActivityCreated(savedInstanceState); 238 239 mWifiTracker = WifiTrackerFactory.create( 240 getActivity(), this, mBgThread.getLooper(), true, true, false); 241 mWifiManager = mWifiTracker.getManager(); 242 243 mConnectListener = new WifiManager.ActionListener() { 244 @Override 245 public void onSuccess() { 246 } 247 @Override 248 public void onFailure(int reason) { 249 Activity activity = getActivity(); 250 if (activity != null) { 251 Toast.makeText(activity, 252 R.string.wifi_failed_connect_message, 253 Toast.LENGTH_SHORT).show(); 254 } 255 } 256 }; 257 258 mSaveListener = new WifiManager.ActionListener() { 259 @Override 260 public void onSuccess() { 261 } 262 @Override 263 public void onFailure(int reason) { 264 Activity activity = getActivity(); 265 if (activity != null) { 266 Toast.makeText(activity, 267 R.string.wifi_failed_save_message, 268 Toast.LENGTH_SHORT).show(); 269 } 270 } 271 }; 272 273 mForgetListener = new WifiManager.ActionListener() { 274 @Override 275 public void onSuccess() { 276 } 277 @Override 278 public void onFailure(int reason) { 279 Activity activity = getActivity(); 280 if (activity != null) { 281 Toast.makeText(activity, 282 R.string.wifi_failed_forget_message, 283 Toast.LENGTH_SHORT).show(); 284 } 285 } 286 }; 287 288 if (savedInstanceState != null) { 289 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 290 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 291 mAccessPointSavedState = 292 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 293 } 294 295 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 296 mWifiNfcDialogSavedState = 297 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 298 } 299 } 300 301 // if we're supposed to enable/disable the Next button based on our current connection 302 // state, start it off in the right state 303 Intent intent = getActivity().getIntent(); 304 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 305 306 if (mEnableNextOnConnection) { 307 if (hasNextButton()) { 308 final ConnectivityManager connectivity = (ConnectivityManager) 309 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 310 if (connectivity != null) { 311 NetworkInfo info = connectivity.getNetworkInfo( 312 ConnectivityManager.TYPE_WIFI); 313 changeNextButtonState(info.isConnected()); 314 } 315 } 316 } 317 318 registerForContextMenu(getListView()); 319 setHasOptionsMenu(true); 320 321 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 322 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 323 } 324 } 325 326 @Override 327 public void onDestroyView() { 328 super.onDestroyView(); 329 330 if (mWifiEnabler != null) { 331 mWifiEnabler.teardownSwitchController(); 332 } 333 } 334 335 @Override 336 public void onStart() { 337 super.onStart(); 338 339 // On/off switch is hidden for Setup Wizard (returns null) 340 mWifiEnabler = createWifiEnabler(); 341 342 mWifiTracker.startTracking(); 343 344 if (mIsRestricted) { 345 if (!isUiRestrictedByOnlyAdmin()) { 346 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 347 } 348 getPreferenceScreen().removeAll(); 349 return; 350 } 351 352 onWifiStateChanged(mWifiManager.getWifiState()); 353 } 354 355 /** 356 * Only update the AP list if there are not any APs currently shown. 357 * 358 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 359 * and off. In other use cases, the previous APs will remain until the next update is received 360 * from {@link WifiTracker}. 361 */ 362 private void conditionallyForceUpdateAPs() { 363 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 364 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 365 AccessPointPreference) { 366 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 367 // WifiTracker. 368 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 369 getView().removeCallbacks(mUpdateAccessPointsRunnable); 370 return; 371 } 372 setProgressBarVisible(true); 373 mWifiTracker.forceUpdate(); 374 if (DEBUG) { 375 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 376 } 377 getView().removeCallbacks(mUpdateAccessPointsRunnable); 378 updateAccessPointPreferences(); 379 } 380 381 /** 382 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 383 */ 384 private WifiEnabler createWifiEnabler() { 385 final SettingsActivity activity = (SettingsActivity) getActivity(); 386 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 387 mMetricsFeatureProvider); 388 } 389 390 @Override 391 public void onResume() { 392 final Activity activity = getActivity(); 393 super.onResume(); 394 if (mWifiEnabler != null) { 395 mWifiEnabler.resume(activity); 396 } 397 } 398 399 @Override 400 public void onPause() { 401 super.onPause(); 402 if (mWifiEnabler != null) { 403 mWifiEnabler.pause(); 404 } 405 } 406 407 @Override 408 public void onStop() { 409 mWifiTracker.stopTracking(); 410 getView().removeCallbacks(mUpdateAccessPointsRunnable); 411 getView().removeCallbacks(mHideProgressBarRunnable); 412 super.onStop(); 413 } 414 415 @Override 416 public int getMetricsCategory() { 417 return MetricsEvent.WIFI; 418 } 419 420 @Override 421 public void onSaveInstanceState(Bundle outState) { 422 super.onSaveInstanceState(outState); 423 424 // If the dialog is showing, save its state. 425 if (mDialog != null && mDialog.isShowing()) { 426 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 427 if (mDlgAccessPoint != null) { 428 mAccessPointSavedState = new Bundle(); 429 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 430 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 431 } 432 } 433 434 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 435 Bundle savedState = new Bundle(); 436 mWifiToNfcDialog.saveState(savedState); 437 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 438 } 439 } 440 441 @Override 442 public boolean onOptionsItemSelected(MenuItem item) { 443 // If the user is not allowed to configure wifi, do not handle menu selections. 444 if (mIsRestricted) { 445 return false; 446 } 447 448 switch (item.getItemId()) { 449 case MENU_ID_WPS_PBC: 450 showDialog(WPS_PBC_DIALOG_ID); 451 return true; 452 case MENU_ID_WPS_PIN: 453 showDialog(WPS_PIN_DIALOG_ID); 454 return true; 455 } 456 return super.onOptionsItemSelected(item); 457 } 458 459 @Override 460 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 461 Preference preference = (Preference) view.getTag(); 462 463 if (preference instanceof LongPressAccessPointPreference) { 464 mSelectedAccessPoint = 465 ((LongPressAccessPointPreference) preference).getAccessPoint(); 466 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 467 if (mSelectedAccessPoint.isConnectable()) { 468 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 469 } 470 471 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 472 // Some configs are ineditable 473 if (isEditabilityLockedDown(getActivity(), config)) { 474 return; 475 } 476 477 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 478 // Allow forgetting a network if either the network is saved or ephemerally 479 // connected. (In the latter case, "forget" blacklists the network so it won't 480 // be used again, ephemerally). 481 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 482 } 483 if (mSelectedAccessPoint.isSaved()) { 484 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 485 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 486 if (nfcAdapter != null && nfcAdapter.isEnabled() && 487 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 488 // Only allow writing of NFC tags for password-protected networks. 489 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 490 } 491 } 492 } 493 } 494 495 @Override 496 public boolean onContextItemSelected(MenuItem item) { 497 if (mSelectedAccessPoint == null) { 498 return super.onContextItemSelected(item); 499 } 500 switch (item.getItemId()) { 501 case MENU_ID_CONNECT: { 502 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 503 if (isSavedNetwork) { 504 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 505 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 506 /** Bypass dialog for unsecured networks */ 507 mSelectedAccessPoint.generateOpenNetworkConfig(); 508 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 509 } else { 510 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 511 } 512 return true; 513 } 514 case MENU_ID_FORGET: { 515 forget(); 516 return true; 517 } 518 case MENU_ID_MODIFY: { 519 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 520 return true; 521 } 522 case MENU_ID_WRITE_NFC: 523 showDialog(WRITE_NFC_DIALOG_ID); 524 return true; 525 526 } 527 return super.onContextItemSelected(item); 528 } 529 530 @Override 531 public boolean onPreferenceTreeClick(Preference preference) { 532 // If the preference has a fragment set, open that 533 if (preference.getFragment() != null) { 534 preference.setOnPreferenceClickListener(null); 535 return super.onPreferenceTreeClick(preference); 536 } 537 538 if (preference instanceof LongPressAccessPointPreference) { 539 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 540 if (mSelectedAccessPoint == null) { 541 return false; 542 } 543 if (mSelectedAccessPoint.isActive()) { 544 return super.onPreferenceTreeClick(preference); 545 } 546 /** 547 * Bypass dialog and connect to unsecured networks, or previously connected saved 548 * networks, or Passpoint provided networks. 549 */ 550 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 551 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 552 mSelectedAccessPoint.generateOpenNetworkConfig(); 553 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 554 } else if (mSelectedAccessPoint.isSaved() && config != null 555 && config.getNetworkSelectionStatus() != null 556 && config.getNetworkSelectionStatus().getHasEverConnected()) { 557 connect(config, true /* isSavedNetwork */); 558 } else if (mSelectedAccessPoint.isPasspoint()) { 559 // Access point provided by an installed Passpoint provider, connect using 560 // the associated config. 561 connect(config, true /* isSavedNetwork */); 562 } else { 563 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 564 } 565 } else if (preference == mAddPreference) { 566 onAddNetworkPressed(); 567 } else { 568 return super.onPreferenceTreeClick(preference); 569 } 570 return true; 571 } 572 573 private void showDialog(AccessPoint accessPoint, int dialogMode) { 574 if (accessPoint != null) { 575 WifiConfiguration config = accessPoint.getConfig(); 576 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 577 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 578 RestrictedLockUtils.getDeviceOwner(getActivity())); 579 return; 580 } 581 } 582 583 if (mDialog != null) { 584 removeDialog(WIFI_DIALOG_ID); 585 mDialog = null; 586 } 587 588 // Save the access point and edit mode 589 mDlgAccessPoint = accessPoint; 590 mDialogMode = dialogMode; 591 592 showDialog(WIFI_DIALOG_ID); 593 } 594 595 @Override 596 public Dialog onCreateDialog(int dialogId) { 597 switch (dialogId) { 598 case WIFI_DIALOG_ID: 599 AccessPoint ap = mDlgAccessPoint; // For manual launch 600 if (ap == null) { // For re-launch from saved state 601 if (mAccessPointSavedState != null) { 602 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 603 // For repeated orientation changes 604 mDlgAccessPoint = ap; 605 // Reset the saved access point data 606 mAccessPointSavedState = null; 607 } 608 } 609 // If it's null, fine, it's for Add Network 610 mSelectedAccessPoint = ap; 611 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 612 /* no hide submit/connect */ false); 613 return mDialog; 614 case WPS_PBC_DIALOG_ID: 615 return new WpsDialog(getActivity(), WpsInfo.PBC); 616 case WPS_PIN_DIALOG_ID: 617 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 618 case WRITE_NFC_DIALOG_ID: 619 if (mSelectedAccessPoint != null) { 620 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 621 getActivity(), 622 mSelectedAccessPoint.getSecurity(), 623 new WifiManagerWrapper(mWifiManager)); 624 } else if (mWifiNfcDialogSavedState != null) { 625 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 626 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 627 } 628 629 return mWifiToNfcDialog; 630 } 631 return super.onCreateDialog(dialogId); 632 } 633 634 @Override 635 public int getDialogMetricsCategory(int dialogId) { 636 switch (dialogId) { 637 case WIFI_DIALOG_ID: 638 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 639 case WPS_PBC_DIALOG_ID: 640 return MetricsEvent.DIALOG_WIFI_PBC; 641 case WPS_PIN_DIALOG_ID: 642 return MetricsEvent.DIALOG_WIFI_PIN; 643 case WRITE_NFC_DIALOG_ID: 644 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 645 default: 646 return 0; 647 } 648 } 649 650 /** 651 * Called to indicate the list of AccessPoints has been updated and 652 * getAccessPoints should be called to get the latest information. 653 */ 654 @Override 655 public void onAccessPointsChanged() { 656 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 657 updateAccessPointsDelayed(); 658 } 659 660 /** 661 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 662 * progress bar displayed before starting to modify APs. 663 */ 664 private void updateAccessPointsDelayed() { 665 // Safeguard from some delayed event handling 666 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 667 setProgressBarVisible(true); 668 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 669 } 670 } 671 672 /** Called when the state of Wifi has changed. */ 673 @Override 674 public void onWifiStateChanged(int state) { 675 if (mIsRestricted) { 676 return; 677 } 678 679 final int wifiState = mWifiManager.getWifiState(); 680 switch (wifiState) { 681 case WifiManager.WIFI_STATE_ENABLED: 682 conditionallyForceUpdateAPs(); 683 break; 684 685 case WifiManager.WIFI_STATE_ENABLING: 686 removeConnectedAccessPointPreference(); 687 mAccessPointsPreferenceCategory.removeAll(); 688 addMessagePreference(R.string.wifi_starting); 689 setProgressBarVisible(true); 690 break; 691 692 case WifiManager.WIFI_STATE_DISABLING: 693 removeConnectedAccessPointPreference(); 694 mAccessPointsPreferenceCategory.removeAll(); 695 addMessagePreference(R.string.wifi_stopping); 696 break; 697 698 case WifiManager.WIFI_STATE_DISABLED: 699 setOffMessage(); 700 setAdditionalSettingsSummaries(); 701 setProgressBarVisible(false); 702 break; 703 } 704 } 705 706 /** 707 * Called when the connection state of wifi has changed and isConnected 708 * should be called to get the updated state. 709 */ 710 @Override 711 public void onConnectedChanged() { 712 updateAccessPointsDelayed(); 713 changeNextButtonState(mWifiTracker.isConnected()); 714 } 715 716 private void updateAccessPointPreferences() { 717 // in case state has changed 718 if (!mWifiManager.isWifiEnabled()) { 719 return; 720 } 721 // AccessPoints are sorted by the WifiTracker 722 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 723 if (DEBUG) { 724 Log.d(TAG, "updateAccessPoints called for: " + accessPoints); 725 } 726 727 boolean hasAvailableAccessPoints = false; 728 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 729 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 730 731 int index = 732 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 733 int numAccessPoints = accessPoints.size(); 734 for (; index < numAccessPoints; index++) { 735 AccessPoint accessPoint = accessPoints.get(index); 736 // Ignore access points that are out of range. 737 if (accessPoint.isReachable()) { 738 String key = accessPoint.getBssid(); 739 if (TextUtils.isEmpty(key)) { 740 key = accessPoint.getSsidStr(); 741 } 742 hasAvailableAccessPoints = true; 743 LongPressAccessPointPreference pref = 744 (LongPressAccessPointPreference) getCachedPreference(key); 745 if (pref != null) { 746 pref.setOrder(index); 747 continue; 748 } 749 LongPressAccessPointPreference preference = 750 createLongPressActionPointPreference(accessPoint); 751 preference.setKey(key); 752 preference.setOrder(index); 753 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 754 && !accessPoint.isSaved() 755 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 756 onPreferenceTreeClick(preference); 757 mOpenSsid = null; 758 } 759 mAccessPointsPreferenceCategory.addPreference(preference); 760 accessPoint.setListener(WifiSettings.this); 761 preference.refresh(); 762 } 763 } 764 removeCachedPrefs(mAccessPointsPreferenceCategory); 765 mAddPreference.setOrder(index); 766 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 767 setAdditionalSettingsSummaries(); 768 769 if (!hasAvailableAccessPoints) { 770 setProgressBarVisible(true); 771 Preference pref = new Preference(getPrefContext()); 772 pref.setSelectable(false); 773 pref.setSummary(R.string.wifi_empty_list_wifi_on); 774 pref.setOrder(index++); 775 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 776 mAccessPointsPreferenceCategory.addPreference(pref); 777 } else { 778 // Continuing showing progress bar for an additional delay to overlap with animation 779 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 780 } 781 } 782 783 @NonNull 784 private LongPressAccessPointPreference createLongPressActionPointPreference( 785 AccessPoint accessPoint) { 786 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 787 false, R.drawable.ic_wifi_signal_0, this); 788 } 789 790 /** 791 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 792 * shown. 793 */ 794 private boolean configureConnectedAccessPointPreferenceCategory( 795 List<AccessPoint> accessPoints) { 796 if (accessPoints.size() == 0) { 797 removeConnectedAccessPointPreference(); 798 return false; 799 } 800 801 AccessPoint connectedAp = accessPoints.get(0); 802 if (!connectedAp.isActive()) { 803 removeConnectedAccessPointPreference(); 804 return false; 805 } 806 807 // Is the preference category empty? 808 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 809 addConnectedAccessPointPreference(connectedAp); 810 return true; 811 } 812 813 // Is the previous currently connected SSID different from the new one? 814 if (!((AccessPointPreference) 815 mConnectedAccessPointPreferenceCategory.getPreference(0)) 816 .getAccessPoint().getSsidStr().equals( 817 connectedAp.getSsidStr())) { 818 removeConnectedAccessPointPreference(); 819 addConnectedAccessPointPreference(connectedAp); 820 return true; 821 } 822 823 // Else same AP is connected, simply refresh the connected access point preference 824 // (first and only access point in this category). 825 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 826 .refresh(); 827 return true; 828 } 829 830 /** 831 * Creates a Preference for the given {@link AccessPoint} and adds it to the 832 * {@link #mConnectedAccessPointPreferenceCategory}. 833 */ 834 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 835 String key = connectedAp.getBssid(); 836 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 837 getCachedPreference(key); 838 if (pref == null) { 839 pref = createLongPressActionPointPreference(connectedAp); 840 } 841 842 // Save the state of the current access point in the bundle so that we can restore it 843 // in the Wifi Network Details Fragment 844 pref.getAccessPoint().saveWifiState(pref.getExtras()); 845 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 846 pref.refresh(); 847 848 mConnectedAccessPointPreferenceCategory.addPreference(pref); 849 mConnectedAccessPointPreferenceCategory.setVisible(true); 850 } 851 852 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 853 private void removeConnectedAccessPointPreference() { 854 mConnectedAccessPointPreferenceCategory.removeAll(); 855 mConnectedAccessPointPreferenceCategory.setVisible(false); 856 } 857 858 private void setAdditionalSettingsSummaries() { 859 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 860 final int defaultWakeupAvailable = getResources().getInteger( 861 com.android.internal.R.integer.config_wifi_wakeup_available); 862 boolean wifiWakeupAvailable = Settings.Global.getInt( 863 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 864 == 1; 865 if (wifiWakeupAvailable) { 866 boolean wifiWakeupEnabled = Settings.Global.getInt( 867 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 868 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 869 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 870 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 871 } 872 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 873 if (numSavedNetworks > 0) { 874 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 875 mSavedNetworksPreference.setSummary( 876 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 877 numSavedNetworks, numSavedNetworks)); 878 } else { 879 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 880 } 881 } 882 883 private void setOffMessage() { 884 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 885 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 886 // read the system settings directly. Because when the device is in Airplane mode, even if 887 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 888 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 889 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 890 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 891 : getText(R.string.wifi_scan_notify_text_scanning_off); 892 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 893 @Override 894 public void onClick() { 895 final SettingsActivity activity = (SettingsActivity) getActivity(); 896 activity.startPreferencePanel(WifiSettings.this, 897 ScanningSettings.class.getName(), 898 null, R.string.location_scanning_screen_title, null, null, 0); 899 } 900 }; 901 mStatusMessagePreference.setText(title, description, clickListener); 902 removeConnectedAccessPointPreference(); 903 mAccessPointsPreferenceCategory.removeAll(); 904 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 905 } 906 907 private void addMessagePreference(int messageId) { 908 mStatusMessagePreference.setTitle(messageId); 909 removeConnectedAccessPointPreference(); 910 mAccessPointsPreferenceCategory.removeAll(); 911 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 912 } 913 914 protected void setProgressBarVisible(boolean visible) { 915 if (mProgressHeader != null) { 916 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); 917 } 918 } 919 920 /** 921 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 922 * Wifi setup screens, not in usual wifi settings screen. 923 * 924 * @param enabled true when the device is connected to a wifi network. 925 */ 926 private void changeNextButtonState(boolean enabled) { 927 if (mEnableNextOnConnection && hasNextButton()) { 928 getNextButton().setEnabled(enabled); 929 } 930 } 931 932 @Override 933 public void onForget(WifiDialog dialog) { 934 forget(); 935 } 936 937 @Override 938 public void onSubmit(WifiDialog dialog) { 939 if (mDialog != null) { 940 submit(mDialog.getController()); 941 } 942 } 943 944 /* package */ void submit(WifiConfigController configController) { 945 946 final WifiConfiguration config = configController.getConfig(); 947 948 if (config == null) { 949 if (mSelectedAccessPoint != null 950 && mSelectedAccessPoint.isSaved()) { 951 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 952 } 953 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 954 mWifiManager.save(config, mSaveListener); 955 } else { 956 mWifiManager.save(config, mSaveListener); 957 if (mSelectedAccessPoint != null) { // Not an "Add network" 958 connect(config, false /* isSavedNetwork */); 959 } 960 } 961 962 mWifiTracker.resumeScanning(); 963 } 964 965 /* package */ void forget() { 966 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 967 if (!mSelectedAccessPoint.isSaved()) { 968 if (mSelectedAccessPoint.getNetworkInfo() != null && 969 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 970 // Network is active but has no network ID - must be ephemeral. 971 mWifiManager.disableEphemeralNetwork( 972 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 973 } else { 974 // Should not happen, but a monkey seems to trigger it 975 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 976 return; 977 } 978 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 979 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 980 } else { 981 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 982 } 983 984 mWifiTracker.resumeScanning(); 985 986 // We need to rename/replace "Next" button in wifi setup context. 987 changeNextButtonState(false); 988 } 989 990 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 991 // Log subtype if configuration is a saved network. 992 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 993 isSavedNetwork); 994 mWifiManager.connect(config, mConnectListener); 995 } 996 997 protected void connect(final int networkId, boolean isSavedNetwork) { 998 // Log subtype if configuration is a saved network. 999 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1000 isSavedNetwork); 1001 mWifiManager.connect(networkId, mConnectListener); 1002 } 1003 1004 /** 1005 * Called when "add network" button is pressed. 1006 */ 1007 /* package */ void onAddNetworkPressed() { 1008 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1009 // No exact access point is selected. 1010 mSelectedAccessPoint = null; 1011 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1012 } 1013 1014 @Override 1015 protected int getHelpResource() { 1016 return R.string.help_url_wifi; 1017 } 1018 1019 @Override 1020 public void onAccessPointChanged(final AccessPoint accessPoint) { 1021 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1022 View view = getView(); 1023 if (view != null) { 1024 view.post(new Runnable() { 1025 @Override 1026 public void run() { 1027 Object tag = accessPoint.getTag(); 1028 if (tag != null) { 1029 ((LongPressAccessPointPreference) tag).refresh(); 1030 } 1031 } 1032 }); 1033 } 1034 } 1035 1036 @Override 1037 public void onLevelChanged(AccessPoint accessPoint) { 1038 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1039 } 1040 1041 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1042 new BaseSearchIndexProvider() { 1043 @Override 1044 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1045 final List<SearchIndexableRaw> result = new ArrayList<>(); 1046 final Resources res = context.getResources(); 1047 1048 // Add fragment title 1049 SearchIndexableRaw data = new SearchIndexableRaw(context); 1050 data.title = res.getString(R.string.wifi_settings); 1051 data.screenTitle = res.getString(R.string.wifi_settings); 1052 data.keywords = res.getString(R.string.keywords_wifi); 1053 data.key = DATA_KEY_REFERENCE; 1054 result.add(data); 1055 1056 // Add saved Wi-Fi access points 1057 final List<AccessPoint> accessPoints = 1058 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1059 for (AccessPoint accessPoint : accessPoints) { 1060 data = new SearchIndexableRaw(context); 1061 data.title = accessPoint.getSsidStr(); 1062 data.screenTitle = res.getString(R.string.wifi_settings); 1063 data.enabled = enabled; 1064 result.add(data); 1065 } 1066 1067 return result; 1068 } 1069 }; 1070 1071 /** 1072 * Returns true if the config is not editable through Settings. 1073 * @param context Context of caller 1074 * @param config The WiFi config. 1075 * @return true if the config is not editable through Settings. 1076 */ 1077 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1078 return !canModifyNetwork(context, config); 1079 } 1080 1081 /** 1082 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1083 * TODO: refactor to have only one method. 1084 * @param context Context of caller 1085 * @param config The WiFi config. 1086 * @return true if Settings can modify the config. 1087 */ 1088 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1089 if (config == null) { 1090 return true; 1091 } 1092 1093 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1094 Context.DEVICE_POLICY_SERVICE); 1095 1096 // Check if device has DPM capability. If it has and dpm is still null, then we 1097 // treat this case with suspicion and bail out. 1098 final PackageManager pm = context.getPackageManager(); 1099 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1100 return false; 1101 } 1102 1103 boolean isConfigEligibleForLockdown = false; 1104 if (dpm != null) { 1105 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1106 if (deviceOwner != null) { 1107 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1108 try { 1109 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1110 deviceOwnerUserId); 1111 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1112 } catch (NameNotFoundException e) { 1113 // don't care 1114 } 1115 } 1116 } 1117 if (!isConfigEligibleForLockdown) { 1118 return true; 1119 } 1120 1121 final ContentResolver resolver = context.getContentResolver(); 1122 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1123 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1124 return !isLockdownFeatureEnabled; 1125 } 1126 1127 private static class SummaryProvider 1128 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1129 1130 private final Context mContext; 1131 private final SummaryLoader mSummaryLoader; 1132 1133 @VisibleForTesting 1134 WifiSummaryUpdater mSummaryHelper; 1135 1136 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1137 mContext = context; 1138 mSummaryLoader = summaryLoader; 1139 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1140 } 1141 1142 1143 @Override 1144 public void setListening(boolean listening) { 1145 mSummaryHelper.register(listening); 1146 } 1147 1148 @Override 1149 public void onSummaryChanged(String summary) { 1150 mSummaryLoader.setSummary(this, summary); 1151 } 1152 } 1153 1154 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1155 = new SummaryLoader.SummaryProviderFactory() { 1156 @Override 1157 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1158 SummaryLoader summaryLoader) { 1159 return new SummaryProvider(activity, summaryLoader); 1160 } 1161 }; 1162} 1163