WifiSettings.java revision a1f56b5faafddd4c0cd2e64e5c028430457532da
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.util.Log; 47import android.view.ContextMenu; 48import android.view.ContextMenu.ContextMenuInfo; 49import android.view.Menu; 50import android.view.MenuItem; 51import android.view.View; 52import android.widget.Toast; 53 54import com.android.internal.logging.nano.MetricsProto.MetricsEvent; 55import com.android.settings.LinkifyUtils; 56import com.android.settings.R; 57import com.android.settings.RestrictedSettingsFragment; 58import com.android.settings.SettingsActivity; 59import com.android.settings.dashboard.SummaryLoader; 60import com.android.settings.location.ScanningSettings; 61import com.android.settings.search.BaseSearchIndexProvider; 62import com.android.settings.search.Indexable; 63import com.android.settings.search.SearchIndexableRaw; 64import com.android.settings.widget.SummaryUpdater.OnSummaryChangeListener; 65import com.android.settings.widget.SwitchBarController; 66import com.android.settings.wifi.details.WifiNetworkDetailsFragment; 67import com.android.settingslib.RestrictedLockUtils; 68import com.android.settingslib.wifi.AccessPoint; 69import com.android.settingslib.wifi.AccessPoint.AccessPointListener; 70import com.android.settingslib.wifi.AccessPointPreference; 71import com.android.settingslib.wifi.WifiTracker; 72import com.android.settingslib.wifi.WifiTrackerFactory; 73 74import java.util.ArrayList; 75import java.util.List; 76 77/** 78 * Two types of UI are provided here. 79 * 80 * The first is for "usual Settings", appearing as any other Setup fragment. 81 * 82 * The second is for Setup Wizard, with a simplified interface that hides the action bar 83 * and menus. 84 */ 85public class WifiSettings extends RestrictedSettingsFragment 86 implements Indexable, WifiTracker.WifiListener, AccessPointListener, 87 WifiDialog.WifiDialogListener { 88 89 private static final String TAG = "WifiSettings"; 90 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 91 92 /* package */ static final int MENU_ID_WPS_PBC = Menu.FIRST; 93 private static final int MENU_ID_WPS_PIN = Menu.FIRST + 1; 94 private static final int MENU_ID_CONNECT = Menu.FIRST + 6; 95 private static final int MENU_ID_FORGET = Menu.FIRST + 7; 96 private static final int MENU_ID_MODIFY = Menu.FIRST + 8; 97 private static final int MENU_ID_WRITE_NFC = Menu.FIRST + 9; 98 99 public static final int WIFI_DIALOG_ID = 1; 100 /* package */ static final int WPS_PBC_DIALOG_ID = 2; 101 private static final int WPS_PIN_DIALOG_ID = 3; 102 private static final int WRITE_NFC_DIALOG_ID = 6; 103 104 // Instance state keys 105 private static final String SAVE_DIALOG_MODE = "dialog_mode"; 106 private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state"; 107 private static final String SAVED_WIFI_NFC_DIALOG_STATE = "wifi_nfc_dlg_state"; 108 109 private static final String PREF_KEY_EMPTY_WIFI_LIST = "wifi_empty_list"; 110 private static final String PREF_KEY_CONNECTED_ACCESS_POINTS = "connected_access_point"; 111 private static final String PREF_KEY_ACCESS_POINTS = "access_points"; 112 private static final String PREF_KEY_ADDITIONAL_SETTINGS = "additional_settings"; 113 private static final String PREF_KEY_CONFIGURE_WIFI_SETTINGS = "configure_settings"; 114 private static final String PREF_KEY_SAVED_NETWORKS = "saved_networks"; 115 116 private final Runnable mUpdateAccessPointsRunnable = () -> { 117 updateAccessPointPreferences(); 118 }; 119 private final Runnable mHideProgressBarRunnable = () -> { 120 setProgressBarVisible(false); 121 }; 122 123 protected WifiManager mWifiManager; 124 private WifiManager.ActionListener mConnectListener; 125 private WifiManager.ActionListener mSaveListener; 126 private WifiManager.ActionListener mForgetListener; 127 128 /** 129 * The state of {@link #isUiRestricted()} at {@link #onCreate(Bundle)}}. This is neccesary to 130 * ensure that behavior is consistent if {@link #isUiRestricted()} changes. It could be changed 131 * by the Test DPC tool in AFW mode. 132 */ 133 private boolean mIsRestricted; 134 135 private WifiEnabler mWifiEnabler; 136 // An access point being editted is stored here. 137 private AccessPoint mSelectedAccessPoint; 138 139 private WifiDialog mDialog; 140 private WriteWifiConfigToNfcDialog mWifiToNfcDialog; 141 142 private View mProgressHeader; 143 144 // this boolean extra specifies whether to disable the Next button when not connected. Used by 145 // account creation outside of setup wizard. 146 private static final String EXTRA_ENABLE_NEXT_ON_CONNECT = "wifi_enable_next_on_connect"; 147 // This string extra specifies a network to open the connect dialog on, so the user can enter 148 // network credentials. This is used by quick settings for secured networks. 149 private static final String EXTRA_START_CONNECT_SSID = "wifi_start_connect_ssid"; 150 151 // should Next button only be enabled when we have a connection? 152 private boolean mEnableNextOnConnection; 153 154 // Save the dialog details 155 private int mDialogMode; 156 private AccessPoint mDlgAccessPoint; 157 private Bundle mAccessPointSavedState; 158 private Bundle mWifiNfcDialogSavedState; 159 160 private WifiTracker mWifiTracker; 161 private String mOpenSsid; 162 163 private HandlerThread mBgThread; 164 165 private AccessPointPreference.UserBadgeCache mUserBadgeCache; 166 167 private PreferenceCategory mConnectedAccessPointPreferenceCategory; 168 private PreferenceCategory mAccessPointsPreferenceCategory; 169 private PreferenceCategory mAdditionalSettingsPreferenceCategory; 170 private Preference mAddPreference; 171 private Preference mConfigureWifiSettingsPreference; 172 private Preference mSavedNetworksPreference; 173 private LinkablePreference mStatusMessagePreference; 174 175 // For Search 176 private static final String DATA_KEY_REFERENCE = "main_toggle_wifi"; 177 178 /* End of "used in Wifi Setup context" */ 179 180 public WifiSettings() { 181 super(DISALLOW_CONFIG_WIFI); 182 } 183 184 @Override 185 public void onViewCreated(View view, Bundle savedInstanceState) { 186 super.onViewCreated(view, savedInstanceState); 187 final Activity activity = getActivity(); 188 if (activity != null) { 189 mProgressHeader = setPinnedHeaderView(R.layout.wifi_progress_header) 190 .findViewById(R.id.progress_bar_animation); 191 setProgressBarVisible(false); 192 } 193 } 194 195 @Override 196 public void onCreate(Bundle icicle) { 197 super.onCreate(icicle); 198 199 // TODO(b/37429702): Add animations and preference comparator back after initial screen is 200 // loaded (ODR). 201 setAnimationAllowed(false); 202 203 addPreferences(); 204 205 mIsRestricted = isUiRestricted(); 206 207 mBgThread = new HandlerThread(TAG, Process.THREAD_PRIORITY_BACKGROUND); 208 mBgThread.start(); 209 } 210 211 private void addPreferences() { 212 addPreferencesFromResource(R.xml.wifi_settings); 213 214 mConnectedAccessPointPreferenceCategory = 215 (PreferenceCategory) findPreference(PREF_KEY_CONNECTED_ACCESS_POINTS); 216 mAccessPointsPreferenceCategory = 217 (PreferenceCategory) findPreference(PREF_KEY_ACCESS_POINTS); 218 mAdditionalSettingsPreferenceCategory = 219 (PreferenceCategory) findPreference(PREF_KEY_ADDITIONAL_SETTINGS); 220 mConfigureWifiSettingsPreference = findPreference(PREF_KEY_CONFIGURE_WIFI_SETTINGS); 221 mSavedNetworksPreference = findPreference(PREF_KEY_SAVED_NETWORKS); 222 223 Context prefContext = getPrefContext(); 224 mAddPreference = new Preference(prefContext); 225 mAddPreference.setIcon(R.drawable.ic_menu_add_inset); 226 mAddPreference.setTitle(R.string.wifi_add_network); 227 mStatusMessagePreference = new LinkablePreference(prefContext); 228 229 mUserBadgeCache = new AccessPointPreference.UserBadgeCache(getPackageManager()); 230 } 231 232 @Override 233 public void onDestroy() { 234 mBgThread.quit(); 235 super.onDestroy(); 236 } 237 238 @Override 239 public void onActivityCreated(Bundle savedInstanceState) { 240 super.onActivityCreated(savedInstanceState); 241 242 mWifiTracker = WifiTrackerFactory.create( 243 getActivity(), this, mBgThread.getLooper(), true, true, false); 244 mWifiManager = mWifiTracker.getManager(); 245 246 mConnectListener = new WifiManager.ActionListener() { 247 @Override 248 public void onSuccess() { 249 } 250 @Override 251 public void onFailure(int reason) { 252 Activity activity = getActivity(); 253 if (activity != null) { 254 Toast.makeText(activity, 255 R.string.wifi_failed_connect_message, 256 Toast.LENGTH_SHORT).show(); 257 } 258 } 259 }; 260 261 mSaveListener = new WifiManager.ActionListener() { 262 @Override 263 public void onSuccess() { 264 } 265 @Override 266 public void onFailure(int reason) { 267 Activity activity = getActivity(); 268 if (activity != null) { 269 Toast.makeText(activity, 270 R.string.wifi_failed_save_message, 271 Toast.LENGTH_SHORT).show(); 272 } 273 } 274 }; 275 276 mForgetListener = new WifiManager.ActionListener() { 277 @Override 278 public void onSuccess() { 279 } 280 @Override 281 public void onFailure(int reason) { 282 Activity activity = getActivity(); 283 if (activity != null) { 284 Toast.makeText(activity, 285 R.string.wifi_failed_forget_message, 286 Toast.LENGTH_SHORT).show(); 287 } 288 } 289 }; 290 291 if (savedInstanceState != null) { 292 mDialogMode = savedInstanceState.getInt(SAVE_DIALOG_MODE); 293 if (savedInstanceState.containsKey(SAVE_DIALOG_ACCESS_POINT_STATE)) { 294 mAccessPointSavedState = 295 savedInstanceState.getBundle(SAVE_DIALOG_ACCESS_POINT_STATE); 296 } 297 298 if (savedInstanceState.containsKey(SAVED_WIFI_NFC_DIALOG_STATE)) { 299 mWifiNfcDialogSavedState = 300 savedInstanceState.getBundle(SAVED_WIFI_NFC_DIALOG_STATE); 301 } 302 } 303 304 // if we're supposed to enable/disable the Next button based on our current connection 305 // state, start it off in the right state 306 Intent intent = getActivity().getIntent(); 307 mEnableNextOnConnection = intent.getBooleanExtra(EXTRA_ENABLE_NEXT_ON_CONNECT, false); 308 309 if (mEnableNextOnConnection) { 310 if (hasNextButton()) { 311 final ConnectivityManager connectivity = (ConnectivityManager) 312 getActivity().getSystemService(Context.CONNECTIVITY_SERVICE); 313 if (connectivity != null) { 314 NetworkInfo info = connectivity.getNetworkInfo( 315 ConnectivityManager.TYPE_WIFI); 316 changeNextButtonState(info.isConnected()); 317 } 318 } 319 } 320 321 registerForContextMenu(getListView()); 322 setHasOptionsMenu(true); 323 324 if (intent.hasExtra(EXTRA_START_CONNECT_SSID)) { 325 mOpenSsid = intent.getStringExtra(EXTRA_START_CONNECT_SSID); 326 } 327 } 328 329 @Override 330 public void onDestroyView() { 331 super.onDestroyView(); 332 333 if (mWifiEnabler != null) { 334 mWifiEnabler.teardownSwitchController(); 335 } 336 } 337 338 @Override 339 public void onStart() { 340 super.onStart(); 341 342 // On/off switch is hidden for Setup Wizard (returns null) 343 mWifiEnabler = createWifiEnabler(); 344 345 mWifiTracker.startTracking(); 346 347 if (mIsRestricted) { 348 restrictUi(); 349 return; 350 } 351 352 onWifiStateChanged(mWifiManager.getWifiState()); 353 } 354 355 private void restrictUi() { 356 if (!isUiRestrictedByOnlyAdmin()) { 357 getEmptyTextView().setText(R.string.wifi_empty_list_user_restricted); 358 } 359 getPreferenceScreen().removeAll(); 360 } 361 362 /** 363 * Only update the AP list if there are not any APs currently shown. 364 * 365 * <p>Thus forceUpdate will only be called during cold start or when toggling between wifi on 366 * and off. In other use cases, the previous APs will remain until the next update is received 367 * from {@link WifiTracker}. 368 */ 369 private void conditionallyForceUpdateAPs() { 370 if (mAccessPointsPreferenceCategory.getPreferenceCount() > 0 371 && mAccessPointsPreferenceCategory.getPreference(0) instanceof 372 AccessPointPreference) { 373 // Make sure we don't update due to callbacks initiated by sticky broadcasts in 374 // WifiTracker. 375 Log.d(TAG, "Did not force update APs due to existing APs displayed"); 376 getView().removeCallbacks(mUpdateAccessPointsRunnable); 377 return; 378 } 379 setProgressBarVisible(true); 380 mWifiTracker.forceUpdate(); 381 if (DEBUG) { 382 Log.d(TAG, "WifiSettings force update APs: " + mWifiTracker.getAccessPoints()); 383 } 384 getView().removeCallbacks(mUpdateAccessPointsRunnable); 385 updateAccessPointPreferences(); 386 } 387 388 /** 389 * @return new WifiEnabler or null (as overridden by WifiSettingsForSetupWizard) 390 */ 391 private WifiEnabler createWifiEnabler() { 392 final SettingsActivity activity = (SettingsActivity) getActivity(); 393 return new WifiEnabler(activity, new SwitchBarController(activity.getSwitchBar()), 394 mMetricsFeatureProvider); 395 } 396 397 @Override 398 public void onResume() { 399 final Activity activity = getActivity(); 400 super.onResume(); 401 402 // Because RestrictedSettingsFragment's onResume potentially requests authorization, 403 // which changes the restriction state, recalculate it. 404 final boolean alreadyImmutablyRestricted = mIsRestricted; 405 mIsRestricted = isUiRestricted(); 406 if (!alreadyImmutablyRestricted && mIsRestricted) { 407 restrictUi(); 408 } 409 410 if (mWifiEnabler != null) { 411 mWifiEnabler.resume(activity); 412 } 413 } 414 415 @Override 416 public void onPause() { 417 super.onPause(); 418 if (mWifiEnabler != null) { 419 mWifiEnabler.pause(); 420 } 421 } 422 423 @Override 424 public void onStop() { 425 mWifiTracker.stopTracking(); 426 getView().removeCallbacks(mUpdateAccessPointsRunnable); 427 getView().removeCallbacks(mHideProgressBarRunnable); 428 super.onStop(); 429 } 430 431 @Override 432 public void onActivityResult(int requestCode, int resultCode, Intent data) { 433 super.onActivityResult(requestCode, resultCode, data); 434 435 final boolean formerlyRestricted = mIsRestricted; 436 mIsRestricted = isUiRestricted(); 437 if (formerlyRestricted && !mIsRestricted 438 && getPreferenceScreen().getPreferenceCount() == 0) { 439 // De-restrict the ui 440 addPreferences(); 441 } 442 } 443 444 @Override 445 public int getMetricsCategory() { 446 return MetricsEvent.WIFI; 447 } 448 449 @Override 450 public void onSaveInstanceState(Bundle outState) { 451 super.onSaveInstanceState(outState); 452 453 // If the dialog is showing, save its state. 454 if (mDialog != null && mDialog.isShowing()) { 455 outState.putInt(SAVE_DIALOG_MODE, mDialogMode); 456 if (mDlgAccessPoint != null) { 457 mAccessPointSavedState = new Bundle(); 458 mDlgAccessPoint.saveWifiState(mAccessPointSavedState); 459 outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState); 460 } 461 } 462 463 if (mWifiToNfcDialog != null && mWifiToNfcDialog.isShowing()) { 464 Bundle savedState = new Bundle(); 465 mWifiToNfcDialog.saveState(savedState); 466 outState.putBundle(SAVED_WIFI_NFC_DIALOG_STATE, savedState); 467 } 468 } 469 470 @Override 471 public boolean onOptionsItemSelected(MenuItem item) { 472 // If the user is not allowed to configure wifi, do not handle menu selections. 473 if (mIsRestricted) { 474 return false; 475 } 476 477 switch (item.getItemId()) { 478 case MENU_ID_WPS_PBC: 479 showDialog(WPS_PBC_DIALOG_ID); 480 return true; 481 case MENU_ID_WPS_PIN: 482 showDialog(WPS_PIN_DIALOG_ID); 483 return true; 484 } 485 return super.onOptionsItemSelected(item); 486 } 487 488 @Override 489 public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo info) { 490 Preference preference = (Preference) view.getTag(); 491 492 if (preference instanceof LongPressAccessPointPreference) { 493 mSelectedAccessPoint = 494 ((LongPressAccessPointPreference) preference).getAccessPoint(); 495 menu.setHeaderTitle(mSelectedAccessPoint.getSsid()); 496 if (mSelectedAccessPoint.isConnectable()) { 497 menu.add(Menu.NONE, MENU_ID_CONNECT, 0, R.string.wifi_menu_connect); 498 } 499 500 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 501 // Some configs are ineditable 502 if (isEditabilityLockedDown(getActivity(), config)) { 503 return; 504 } 505 506 if (mSelectedAccessPoint.isSaved() || mSelectedAccessPoint.isEphemeral()) { 507 // Allow forgetting a network if either the network is saved or ephemerally 508 // connected. (In the latter case, "forget" blacklists the network so it won't 509 // be used again, ephemerally). 510 menu.add(Menu.NONE, MENU_ID_FORGET, 0, R.string.wifi_menu_forget); 511 } 512 if (mSelectedAccessPoint.isSaved()) { 513 menu.add(Menu.NONE, MENU_ID_MODIFY, 0, R.string.wifi_menu_modify); 514 NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(getActivity()); 515 if (nfcAdapter != null && nfcAdapter.isEnabled() && 516 mSelectedAccessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 517 // Only allow writing of NFC tags for password-protected networks. 518 menu.add(Menu.NONE, MENU_ID_WRITE_NFC, 0, R.string.wifi_menu_write_to_nfc); 519 } 520 } 521 } 522 } 523 524 @Override 525 public boolean onContextItemSelected(MenuItem item) { 526 if (mSelectedAccessPoint == null) { 527 return super.onContextItemSelected(item); 528 } 529 switch (item.getItemId()) { 530 case MENU_ID_CONNECT: { 531 boolean isSavedNetwork = mSelectedAccessPoint.isSaved(); 532 if (isSavedNetwork) { 533 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 534 } else if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 535 /** Bypass dialog for unsecured networks */ 536 mSelectedAccessPoint.generateOpenNetworkConfig(); 537 connect(mSelectedAccessPoint.getConfig(), isSavedNetwork); 538 } else { 539 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 540 } 541 return true; 542 } 543 case MENU_ID_FORGET: { 544 forget(); 545 return true; 546 } 547 case MENU_ID_MODIFY: { 548 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_MODIFY); 549 return true; 550 } 551 case MENU_ID_WRITE_NFC: 552 showDialog(WRITE_NFC_DIALOG_ID); 553 return true; 554 555 } 556 return super.onContextItemSelected(item); 557 } 558 559 @Override 560 public boolean onPreferenceTreeClick(Preference preference) { 561 // If the preference has a fragment set, open that 562 if (preference.getFragment() != null) { 563 preference.setOnPreferenceClickListener(null); 564 return super.onPreferenceTreeClick(preference); 565 } 566 567 if (preference instanceof LongPressAccessPointPreference) { 568 mSelectedAccessPoint = ((LongPressAccessPointPreference) preference).getAccessPoint(); 569 if (mSelectedAccessPoint == null) { 570 return false; 571 } 572 if (mSelectedAccessPoint.isActive()) { 573 return super.onPreferenceTreeClick(preference); 574 } 575 /** 576 * Bypass dialog and connect to unsecured networks, or previously connected saved 577 * networks, or Passpoint provided networks. 578 */ 579 WifiConfiguration config = mSelectedAccessPoint.getConfig(); 580 if (mSelectedAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE) { 581 mSelectedAccessPoint.generateOpenNetworkConfig(); 582 connect(mSelectedAccessPoint.getConfig(), mSelectedAccessPoint.isSaved()); 583 } else if (mSelectedAccessPoint.isSaved() && config != null 584 && config.getNetworkSelectionStatus() != null 585 && config.getNetworkSelectionStatus().getHasEverConnected()) { 586 connect(config, true /* isSavedNetwork */); 587 } else if (mSelectedAccessPoint.isPasspoint()) { 588 // Access point provided by an installed Passpoint provider, connect using 589 // the associated config. 590 connect(config, true /* isSavedNetwork */); 591 } else { 592 showDialog(mSelectedAccessPoint, WifiConfigUiBase.MODE_CONNECT); 593 } 594 } else if (preference == mAddPreference) { 595 onAddNetworkPressed(); 596 } else { 597 return super.onPreferenceTreeClick(preference); 598 } 599 return true; 600 } 601 602 private void showDialog(AccessPoint accessPoint, int dialogMode) { 603 if (accessPoint != null) { 604 WifiConfiguration config = accessPoint.getConfig(); 605 if (isEditabilityLockedDown(getActivity(), config) && accessPoint.isActive()) { 606 RestrictedLockUtils.sendShowAdminSupportDetailsIntent(getActivity(), 607 RestrictedLockUtils.getDeviceOwner(getActivity())); 608 return; 609 } 610 } 611 612 if (mDialog != null) { 613 removeDialog(WIFI_DIALOG_ID); 614 mDialog = null; 615 } 616 617 // Save the access point and edit mode 618 mDlgAccessPoint = accessPoint; 619 mDialogMode = dialogMode; 620 621 showDialog(WIFI_DIALOG_ID); 622 } 623 624 @Override 625 public Dialog onCreateDialog(int dialogId) { 626 switch (dialogId) { 627 case WIFI_DIALOG_ID: 628 AccessPoint ap = mDlgAccessPoint; // For manual launch 629 if (ap == null) { // For re-launch from saved state 630 if (mAccessPointSavedState != null) { 631 ap = new AccessPoint(getActivity(), mAccessPointSavedState); 632 // For repeated orientation changes 633 mDlgAccessPoint = ap; 634 // Reset the saved access point data 635 mAccessPointSavedState = null; 636 } 637 } 638 // If it's null, fine, it's for Add Network 639 mSelectedAccessPoint = ap; 640 mDialog = new WifiDialog(getActivity(), this, ap, mDialogMode, 641 /* no hide submit/connect */ false); 642 return mDialog; 643 case WPS_PBC_DIALOG_ID: 644 return new WpsDialog(getActivity(), WpsInfo.PBC); 645 case WPS_PIN_DIALOG_ID: 646 return new WpsDialog(getActivity(), WpsInfo.DISPLAY); 647 case WRITE_NFC_DIALOG_ID: 648 if (mSelectedAccessPoint != null) { 649 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog( 650 getActivity(), 651 mSelectedAccessPoint.getSecurity(), 652 new WifiManagerWrapper(mWifiManager)); 653 } else if (mWifiNfcDialogSavedState != null) { 654 mWifiToNfcDialog = new WriteWifiConfigToNfcDialog(getActivity(), 655 mWifiNfcDialogSavedState, new WifiManagerWrapper(mWifiManager)); 656 } 657 658 return mWifiToNfcDialog; 659 } 660 return super.onCreateDialog(dialogId); 661 } 662 663 @Override 664 public int getDialogMetricsCategory(int dialogId) { 665 switch (dialogId) { 666 case WIFI_DIALOG_ID: 667 return MetricsEvent.DIALOG_WIFI_AP_EDIT; 668 case WPS_PBC_DIALOG_ID: 669 return MetricsEvent.DIALOG_WIFI_PBC; 670 case WPS_PIN_DIALOG_ID: 671 return MetricsEvent.DIALOG_WIFI_PIN; 672 case WRITE_NFC_DIALOG_ID: 673 return MetricsEvent.DIALOG_WIFI_WRITE_NFC; 674 default: 675 return 0; 676 } 677 } 678 679 /** 680 * Called to indicate the list of AccessPoints has been updated and 681 * getAccessPoints should be called to get the latest information. 682 */ 683 @Override 684 public void onAccessPointsChanged() { 685 Log.d(TAG, "onAccessPointsChanged (WifiTracker) callback initiated"); 686 updateAccessPointsDelayed(); 687 } 688 689 /** 690 * Updates access points from {@link WifiManager#getScanResults()}. Adds a delay to have 691 * progress bar displayed before starting to modify APs. 692 */ 693 private void updateAccessPointsDelayed() { 694 // Safeguard from some delayed event handling 695 if (getActivity() != null && !mIsRestricted && mWifiManager.isWifiEnabled()) { 696 setProgressBarVisible(true); 697 getView().postDelayed(mUpdateAccessPointsRunnable, 300 /* delay milliseconds */); 698 } 699 } 700 701 /** Called when the state of Wifi has changed. */ 702 @Override 703 public void onWifiStateChanged(int state) { 704 if (mIsRestricted) { 705 return; 706 } 707 708 final int wifiState = mWifiManager.getWifiState(); 709 switch (wifiState) { 710 case WifiManager.WIFI_STATE_ENABLED: 711 conditionallyForceUpdateAPs(); 712 break; 713 714 case WifiManager.WIFI_STATE_ENABLING: 715 removeConnectedAccessPointPreference(); 716 mAccessPointsPreferenceCategory.removeAll(); 717 addMessagePreference(R.string.wifi_starting); 718 setProgressBarVisible(true); 719 break; 720 721 case WifiManager.WIFI_STATE_DISABLING: 722 removeConnectedAccessPointPreference(); 723 mAccessPointsPreferenceCategory.removeAll(); 724 addMessagePreference(R.string.wifi_stopping); 725 break; 726 727 case WifiManager.WIFI_STATE_DISABLED: 728 setOffMessage(); 729 setAdditionalSettingsSummaries(); 730 setProgressBarVisible(false); 731 break; 732 } 733 } 734 735 /** 736 * Called when the connection state of wifi has changed and isConnected 737 * should be called to get the updated state. 738 */ 739 @Override 740 public void onConnectedChanged() { 741 updateAccessPointsDelayed(); 742 changeNextButtonState(mWifiTracker.isConnected()); 743 } 744 745 private void updateAccessPointPreferences() { 746 // in case state has changed 747 if (!mWifiManager.isWifiEnabled()) { 748 return; 749 } 750 // AccessPoints are sorted by the WifiTracker 751 final List<AccessPoint> accessPoints = mWifiTracker.getAccessPoints(); 752 if (DEBUG) { 753 Log.d(TAG, "updateAccessPoints called for: " + accessPoints); 754 } 755 756 boolean hasAvailableAccessPoints = false; 757 mAccessPointsPreferenceCategory.removePreference(mStatusMessagePreference); 758 cacheRemoveAllPrefs(mAccessPointsPreferenceCategory); 759 760 int index = 761 configureConnectedAccessPointPreferenceCategory(accessPoints) ? 1 : 0; 762 int numAccessPoints = accessPoints.size(); 763 for (; index < numAccessPoints; index++) { 764 AccessPoint accessPoint = accessPoints.get(index); 765 // Ignore access points that are out of range. 766 if (accessPoint.isReachable()) { 767 String key = AccessPointPreference.generatePreferenceKey(accessPoint); 768 hasAvailableAccessPoints = true; 769 LongPressAccessPointPreference pref = 770 (LongPressAccessPointPreference) getCachedPreference(key); 771 if (pref != null) { 772 pref.setOrder(index); 773 continue; 774 } 775 LongPressAccessPointPreference preference = 776 createLongPressActionPointPreference(accessPoint); 777 preference.setKey(key); 778 preference.setOrder(index); 779 if (mOpenSsid != null && mOpenSsid.equals(accessPoint.getSsidStr()) 780 && !accessPoint.isSaved() 781 && accessPoint.getSecurity() != AccessPoint.SECURITY_NONE) { 782 onPreferenceTreeClick(preference); 783 mOpenSsid = null; 784 } 785 mAccessPointsPreferenceCategory.addPreference(preference); 786 accessPoint.setListener(WifiSettings.this); 787 preference.refresh(); 788 } 789 } 790 removeCachedPrefs(mAccessPointsPreferenceCategory); 791 mAddPreference.setOrder(index); 792 mAccessPointsPreferenceCategory.addPreference(mAddPreference); 793 setAdditionalSettingsSummaries(); 794 795 if (!hasAvailableAccessPoints) { 796 setProgressBarVisible(true); 797 Preference pref = new Preference(getPrefContext()); 798 pref.setSelectable(false); 799 pref.setSummary(R.string.wifi_empty_list_wifi_on); 800 pref.setOrder(index++); 801 pref.setKey(PREF_KEY_EMPTY_WIFI_LIST); 802 mAccessPointsPreferenceCategory.addPreference(pref); 803 } else { 804 // Continuing showing progress bar for an additional delay to overlap with animation 805 getView().postDelayed(mHideProgressBarRunnable, 1700 /* delay millis */); 806 } 807 } 808 809 @NonNull 810 private LongPressAccessPointPreference createLongPressActionPointPreference( 811 AccessPoint accessPoint) { 812 return new LongPressAccessPointPreference(accessPoint, getPrefContext(), mUserBadgeCache, 813 false, R.drawable.ic_wifi_signal_0, this); 814 } 815 816 /** 817 * Configure the ConnectedAccessPointPreferenceCategory and return true if the Category was 818 * shown. 819 */ 820 private boolean configureConnectedAccessPointPreferenceCategory( 821 List<AccessPoint> accessPoints) { 822 if (accessPoints.size() == 0) { 823 removeConnectedAccessPointPreference(); 824 return false; 825 } 826 827 AccessPoint connectedAp = accessPoints.get(0); 828 if (!connectedAp.isActive()) { 829 removeConnectedAccessPointPreference(); 830 return false; 831 } 832 833 // Is the preference category empty? 834 if (mConnectedAccessPointPreferenceCategory.getPreferenceCount() == 0) { 835 addConnectedAccessPointPreference(connectedAp); 836 return true; 837 } 838 839 // Is the previous currently connected SSID different from the new one? 840 if (!((AccessPointPreference) 841 mConnectedAccessPointPreferenceCategory.getPreference(0)) 842 .getAccessPoint().getSsidStr().equals( 843 connectedAp.getSsidStr())) { 844 removeConnectedAccessPointPreference(); 845 addConnectedAccessPointPreference(connectedAp); 846 return true; 847 } 848 849 // Else same AP is connected, simply refresh the connected access point preference 850 // (first and only access point in this category). 851 ((LongPressAccessPointPreference) mConnectedAccessPointPreferenceCategory.getPreference(0)) 852 .refresh(); 853 return true; 854 } 855 856 /** 857 * Creates a Preference for the given {@link AccessPoint} and adds it to the 858 * {@link #mConnectedAccessPointPreferenceCategory}. 859 */ 860 private void addConnectedAccessPointPreference(AccessPoint connectedAp) { 861 String key = connectedAp.getBssid(); 862 LongPressAccessPointPreference pref = (LongPressAccessPointPreference) 863 getCachedPreference(key); 864 if (pref == null) { 865 pref = createLongPressActionPointPreference(connectedAp); 866 } 867 868 // Save the state of the current access point in the bundle so that we can restore it 869 // in the Wifi Network Details Fragment 870 pref.getAccessPoint().saveWifiState(pref.getExtras()); 871 pref.setFragment(WifiNetworkDetailsFragment.class.getName()); 872 pref.refresh(); 873 874 mConnectedAccessPointPreferenceCategory.addPreference(pref); 875 mConnectedAccessPointPreferenceCategory.setVisible(true); 876 } 877 878 /** Removes all preferences and hide the {@link #mConnectedAccessPointPreferenceCategory}. */ 879 private void removeConnectedAccessPointPreference() { 880 mConnectedAccessPointPreferenceCategory.removeAll(); 881 mConnectedAccessPointPreferenceCategory.setVisible(false); 882 } 883 884 private void setAdditionalSettingsSummaries() { 885 mAdditionalSettingsPreferenceCategory.addPreference(mConfigureWifiSettingsPreference); 886 final int defaultWakeupAvailable = getResources().getInteger( 887 com.android.internal.R.integer.config_wifi_wakeup_available); 888 boolean wifiWakeupAvailable = Settings.Global.getInt( 889 getContentResolver(), Settings.Global.WIFI_WAKEUP_AVAILABLE, defaultWakeupAvailable) 890 == 1; 891 if (wifiWakeupAvailable) { 892 boolean wifiWakeupEnabled = Settings.Global.getInt( 893 getContentResolver(), Settings.Global.WIFI_WAKEUP_ENABLED, 0) == 1; 894 mConfigureWifiSettingsPreference.setSummary(getString(wifiWakeupEnabled 895 ? R.string.wifi_configure_settings_preference_summary_wakeup_on 896 : R.string.wifi_configure_settings_preference_summary_wakeup_off)); 897 } 898 int numSavedNetworks = mWifiTracker.getNumSavedNetworks(); 899 if (numSavedNetworks > 0) { 900 mAdditionalSettingsPreferenceCategory.addPreference(mSavedNetworksPreference); 901 mSavedNetworksPreference.setSummary( 902 getResources().getQuantityString(R.plurals.wifi_saved_access_points_summary, 903 numSavedNetworks, numSavedNetworks)); 904 } else { 905 mAdditionalSettingsPreferenceCategory.removePreference(mSavedNetworksPreference); 906 } 907 } 908 909 private void setOffMessage() { 910 final CharSequence title = getText(R.string.wifi_empty_list_wifi_off); 911 // Don't use WifiManager.isScanAlwaysAvailable() to check the Wi-Fi scanning mode. Instead, 912 // read the system settings directly. Because when the device is in Airplane mode, even if 913 // Wi-Fi scanning mode is on, WifiManager.isScanAlwaysAvailable() still returns "off". 914 final boolean wifiScanningMode = Settings.Global.getInt(getActivity().getContentResolver(), 915 Settings.Global.WIFI_SCAN_ALWAYS_AVAILABLE, 0) == 1; 916 final CharSequence description = wifiScanningMode ? getText(R.string.wifi_scan_notify_text) 917 : getText(R.string.wifi_scan_notify_text_scanning_off); 918 final LinkifyUtils.OnClickListener clickListener = new LinkifyUtils.OnClickListener() { 919 @Override 920 public void onClick() { 921 final SettingsActivity activity = (SettingsActivity) getActivity(); 922 activity.startPreferencePanel(WifiSettings.this, 923 ScanningSettings.class.getName(), 924 null, R.string.location_scanning_screen_title, null, null, 0); 925 } 926 }; 927 mStatusMessagePreference.setText(title, description, clickListener); 928 removeConnectedAccessPointPreference(); 929 mAccessPointsPreferenceCategory.removeAll(); 930 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 931 } 932 933 private void addMessagePreference(int messageId) { 934 mStatusMessagePreference.setTitle(messageId); 935 removeConnectedAccessPointPreference(); 936 mAccessPointsPreferenceCategory.removeAll(); 937 mAccessPointsPreferenceCategory.addPreference(mStatusMessagePreference); 938 } 939 940 protected void setProgressBarVisible(boolean visible) { 941 if (mProgressHeader != null) { 942 mProgressHeader.setVisibility(visible ? View.VISIBLE : View.GONE); 943 } 944 } 945 946 /** 947 * Renames/replaces "Next" button when appropriate. "Next" button usually exists in 948 * Wifi setup screens, not in usual wifi settings screen. 949 * 950 * @param enabled true when the device is connected to a wifi network. 951 */ 952 private void changeNextButtonState(boolean enabled) { 953 if (mEnableNextOnConnection && hasNextButton()) { 954 getNextButton().setEnabled(enabled); 955 } 956 } 957 958 @Override 959 public void onForget(WifiDialog dialog) { 960 forget(); 961 } 962 963 @Override 964 public void onSubmit(WifiDialog dialog) { 965 if (mDialog != null) { 966 submit(mDialog.getController()); 967 } 968 } 969 970 /* package */ void submit(WifiConfigController configController) { 971 972 final WifiConfiguration config = configController.getConfig(); 973 974 if (config == null) { 975 if (mSelectedAccessPoint != null 976 && mSelectedAccessPoint.isSaved()) { 977 connect(mSelectedAccessPoint.getConfig(), true /* isSavedNetwork */); 978 } 979 } else if (configController.getMode() == WifiConfigUiBase.MODE_MODIFY) { 980 mWifiManager.save(config, mSaveListener); 981 } else { 982 mWifiManager.save(config, mSaveListener); 983 if (mSelectedAccessPoint != null) { // Not an "Add network" 984 connect(config, false /* isSavedNetwork */); 985 } 986 } 987 988 mWifiTracker.resumeScanning(); 989 } 990 991 /* package */ void forget() { 992 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_FORGET); 993 if (!mSelectedAccessPoint.isSaved()) { 994 if (mSelectedAccessPoint.getNetworkInfo() != null && 995 mSelectedAccessPoint.getNetworkInfo().getState() != State.DISCONNECTED) { 996 // Network is active but has no network ID - must be ephemeral. 997 mWifiManager.disableEphemeralNetwork( 998 AccessPoint.convertToQuotedString(mSelectedAccessPoint.getSsidStr())); 999 } else { 1000 // Should not happen, but a monkey seems to trigger it 1001 Log.e(TAG, "Failed to forget invalid network " + mSelectedAccessPoint.getConfig()); 1002 return; 1003 } 1004 } else if (mSelectedAccessPoint.getConfig().isPasspoint()) { 1005 mWifiManager.removePasspointConfiguration(mSelectedAccessPoint.getConfig().FQDN); 1006 } else { 1007 mWifiManager.forget(mSelectedAccessPoint.getConfig().networkId, mForgetListener); 1008 } 1009 1010 mWifiTracker.resumeScanning(); 1011 1012 // We need to rename/replace "Next" button in wifi setup context. 1013 changeNextButtonState(false); 1014 } 1015 1016 protected void connect(final WifiConfiguration config, boolean isSavedNetwork) { 1017 // Log subtype if configuration is a saved network. 1018 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1019 isSavedNetwork); 1020 mWifiManager.connect(config, mConnectListener); 1021 scrollToPreference(mConnectedAccessPointPreferenceCategory); 1022 } 1023 1024 protected void connect(final int networkId, boolean isSavedNetwork) { 1025 // Log subtype if configuration is a saved network. 1026 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_CONNECT, 1027 isSavedNetwork); 1028 mWifiManager.connect(networkId, mConnectListener); 1029 } 1030 1031 /** 1032 * Called when "add network" button is pressed. 1033 */ 1034 /* package */ void onAddNetworkPressed() { 1035 mMetricsFeatureProvider.action(getActivity(), MetricsEvent.ACTION_WIFI_ADD_NETWORK); 1036 // No exact access point is selected. 1037 mSelectedAccessPoint = null; 1038 showDialog(null, WifiConfigUiBase.MODE_CONNECT); 1039 } 1040 1041 @Override 1042 protected int getHelpResource() { 1043 return R.string.help_url_wifi; 1044 } 1045 1046 @Override 1047 public void onAccessPointChanged(final AccessPoint accessPoint) { 1048 Log.d(TAG, "onAccessPointChanged (singular) callback initiated"); 1049 View view = getView(); 1050 if (view != null) { 1051 view.post(new Runnable() { 1052 @Override 1053 public void run() { 1054 Object tag = accessPoint.getTag(); 1055 if (tag != null) { 1056 ((LongPressAccessPointPreference) tag).refresh(); 1057 } 1058 } 1059 }); 1060 } 1061 } 1062 1063 @Override 1064 public void onLevelChanged(AccessPoint accessPoint) { 1065 ((LongPressAccessPointPreference) accessPoint.getTag()).onLevelChanged(); 1066 } 1067 1068 public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 1069 new BaseSearchIndexProvider() { 1070 @Override 1071 public List<SearchIndexableRaw> getRawDataToIndex(Context context, boolean enabled) { 1072 final List<SearchIndexableRaw> result = new ArrayList<>(); 1073 final Resources res = context.getResources(); 1074 1075 // Add fragment title 1076 SearchIndexableRaw data = new SearchIndexableRaw(context); 1077 data.title = res.getString(R.string.wifi_settings); 1078 data.screenTitle = res.getString(R.string.wifi_settings); 1079 data.keywords = res.getString(R.string.keywords_wifi); 1080 data.key = DATA_KEY_REFERENCE; 1081 result.add(data); 1082 1083 // Add saved Wi-Fi access points 1084 final List<AccessPoint> accessPoints = 1085 WifiTracker.getCurrentAccessPoints(context, true, false, false); 1086 for (AccessPoint accessPoint : accessPoints) { 1087 data = new SearchIndexableRaw(context); 1088 data.title = accessPoint.getSsidStr(); 1089 data.screenTitle = res.getString(R.string.wifi_settings); 1090 data.enabled = enabled; 1091 result.add(data); 1092 } 1093 1094 return result; 1095 } 1096 }; 1097 1098 /** 1099 * Returns true if the config is not editable through Settings. 1100 * @param context Context of caller 1101 * @param config The WiFi config. 1102 * @return true if the config is not editable through Settings. 1103 */ 1104 static boolean isEditabilityLockedDown(Context context, WifiConfiguration config) { 1105 return !canModifyNetwork(context, config); 1106 } 1107 1108 /** 1109 * This method is a stripped version of WifiConfigStore.canModifyNetwork. 1110 * TODO: refactor to have only one method. 1111 * @param context Context of caller 1112 * @param config The WiFi config. 1113 * @return true if Settings can modify the config. 1114 */ 1115 static boolean canModifyNetwork(Context context, WifiConfiguration config) { 1116 if (config == null) { 1117 return true; 1118 } 1119 1120 final DevicePolicyManager dpm = (DevicePolicyManager) context.getSystemService( 1121 Context.DEVICE_POLICY_SERVICE); 1122 1123 // Check if device has DPM capability. If it has and dpm is still null, then we 1124 // treat this case with suspicion and bail out. 1125 final PackageManager pm = context.getPackageManager(); 1126 if (pm.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN) && dpm == null) { 1127 return false; 1128 } 1129 1130 boolean isConfigEligibleForLockdown = false; 1131 if (dpm != null) { 1132 final ComponentName deviceOwner = dpm.getDeviceOwnerComponentOnAnyUser(); 1133 if (deviceOwner != null) { 1134 final int deviceOwnerUserId = dpm.getDeviceOwnerUserId(); 1135 try { 1136 final int deviceOwnerUid = pm.getPackageUidAsUser(deviceOwner.getPackageName(), 1137 deviceOwnerUserId); 1138 isConfigEligibleForLockdown = deviceOwnerUid == config.creatorUid; 1139 } catch (NameNotFoundException e) { 1140 // don't care 1141 } 1142 } 1143 } 1144 if (!isConfigEligibleForLockdown) { 1145 return true; 1146 } 1147 1148 final ContentResolver resolver = context.getContentResolver(); 1149 final boolean isLockdownFeatureEnabled = Settings.Global.getInt(resolver, 1150 Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN, 0) != 0; 1151 return !isLockdownFeatureEnabled; 1152 } 1153 1154 private static class SummaryProvider 1155 implements SummaryLoader.SummaryProvider, OnSummaryChangeListener { 1156 1157 private final Context mContext; 1158 private final SummaryLoader mSummaryLoader; 1159 1160 @VisibleForTesting 1161 WifiSummaryUpdater mSummaryHelper; 1162 1163 public SummaryProvider(Context context, SummaryLoader summaryLoader) { 1164 mContext = context; 1165 mSummaryLoader = summaryLoader; 1166 mSummaryHelper = new WifiSummaryUpdater(mContext, this); 1167 } 1168 1169 1170 @Override 1171 public void setListening(boolean listening) { 1172 mSummaryHelper.register(listening); 1173 } 1174 1175 @Override 1176 public void onSummaryChanged(String summary) { 1177 mSummaryLoader.setSummary(this, summary); 1178 } 1179 } 1180 1181 public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY 1182 = new SummaryLoader.SummaryProviderFactory() { 1183 @Override 1184 public SummaryLoader.SummaryProvider createSummaryProvider(Activity activity, 1185 SummaryLoader summaryLoader) { 1186 return new SummaryProvider(activity, summaryLoader); 1187 } 1188 }; 1189} 1190