Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 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 | |
| 17 | package com.android.settings; |
| 18 | |
| 19 | import static android.net.ConnectivityManager.ACTION_TETHER_STATE_CHANGED; |
| 20 | import static android.net.ConnectivityManager.TETHERING_WIFI; |
| 21 | import static android.net.wifi.WifiManager.WIFI_AP_STATE_CHANGED_ACTION; |
| 22 | |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 23 | import static com.android.settings.network.WifiTetherDisablePreferenceController.KEY_ENABLE_WIFI_TETHERING; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 24 | |
| 25 | import android.app.settings.SettingsEnums; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 26 | import android.bluetooth.BluetoothAdapter; |
| 27 | import android.bluetooth.BluetoothPan; |
| 28 | import android.bluetooth.BluetoothProfile; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 29 | import android.content.BroadcastReceiver; |
| 30 | import android.content.Context; |
| 31 | import android.content.Intent; |
| 32 | import android.content.IntentFilter; |
| 33 | import android.content.SharedPreferences; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 34 | import android.net.wifi.SoftApConfiguration; |
| 35 | import android.net.wifi.WifiManager; |
| 36 | import android.os.Bundle; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 37 | import android.os.UserManager; |
| 38 | import android.text.TextUtils; |
| 39 | import android.util.Log; |
| 40 | |
| 41 | import androidx.annotation.VisibleForTesting; |
| 42 | import androidx.preference.Preference; |
| 43 | import androidx.preference.PreferenceGroup; |
| 44 | |
| 45 | import com.android.settings.dashboard.RestrictedDashboardFragment; |
| 46 | import com.android.settings.datausage.DataSaverBackend; |
| 47 | import com.android.settings.network.TetherEnabler; |
| 48 | import com.android.settings.search.BaseSearchIndexProvider; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 49 | import com.android.settings.widget.SwitchBar; |
| 50 | import com.android.settings.widget.SwitchBarController; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 51 | import com.android.settings.wifi.tether.WifiTetherApBandPreferenceController; |
| 52 | import com.android.settings.wifi.tether.WifiTetherAutoOffPreferenceController; |
| 53 | import com.android.settings.wifi.tether.WifiTetherBasePreferenceController; |
| 54 | import com.android.settings.wifi.tether.WifiTetherPasswordPreferenceController; |
| 55 | import com.android.settings.wifi.tether.WifiTetherSSIDPreferenceController; |
| 56 | import com.android.settings.wifi.tether.WifiTetherSecurityPreferenceController; |
| 57 | import com.android.settingslib.TetherUtil; |
| 58 | import com.android.settingslib.core.AbstractPreferenceController; |
| 59 | import com.android.settingslib.search.SearchIndexable; |
| 60 | |
| 61 | import java.util.ArrayList; |
| 62 | import java.util.List; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 63 | import java.util.concurrent.atomic.AtomicReference; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 64 | |
| 65 | /** |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 66 | * Displays preferences for all Tethering options. |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 67 | * TODO(b/147323306): Add tether option preferences into this fragment after controllers created. |
| 68 | */ |
| 69 | @SearchIndexable |
| 70 | public final class AllInOneTetherSettings extends RestrictedDashboardFragment |
| 71 | implements DataSaverBackend.Listener, |
| 72 | WifiTetherBasePreferenceController.OnTetherConfigUpdateListener, |
| 73 | SharedPreferences.OnSharedPreferenceChangeListener { |
| 74 | |
| 75 | @VisibleForTesting |
| 76 | static final String KEY_TETHER_PREFS_SCREEN = "tether_prefs_screen"; |
| 77 | @VisibleForTesting |
| 78 | static final String KEY_WIFI_TETHER_NETWORK_NAME = "wifi_tether_network_name"; |
| 79 | @VisibleForTesting |
| 80 | static final String KEY_WIFI_TETHER_NETWORK_PASSWORD = "wifi_tether_network_password"; |
| 81 | @VisibleForTesting |
| 82 | static final String KEY_WIFI_TETHER_AUTO_OFF = "wifi_tether_auto_turn_off"; |
| 83 | @VisibleForTesting |
| 84 | static final String KEY_WIFI_TETHER_NETWORK_AP_BAND = "wifi_tether_network_ap_band"; |
| 85 | |
| 86 | private static final String KEY_WIFI_TETHER_GROUP = "wifi_tether_settings_group"; |
| 87 | private static final String KEY_DATA_SAVER_FOOTER = "disabled_on_data_saver"; |
| 88 | private static final int EXPANDED_CHILD_COUNT_WITH_SECURITY_NON = 2; |
| 89 | private static final int EXPANDED_CHILD_COUNT_DEFAULT = 3; |
| 90 | private static final String TAG = "AllInOneTetherSettings"; |
| 91 | |
| 92 | private boolean mUnavailable; |
| 93 | |
| 94 | private DataSaverBackend mDataSaverBackend; |
| 95 | private boolean mDataSaverEnabled; |
| 96 | private Preference mDataSaverFooter; |
| 97 | |
| 98 | private WifiManager mWifiManager; |
| 99 | private boolean mRestartWifiApAfterConfigChange; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 100 | private final AtomicReference<BluetoothPan> mBluetoothPan = new AtomicReference<>(); |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 101 | |
| 102 | private WifiTetherSSIDPreferenceController mSSIDPreferenceController; |
| 103 | private WifiTetherPasswordPreferenceController mPasswordPreferenceController; |
| 104 | private WifiTetherApBandPreferenceController mApBandPreferenceController; |
| 105 | private WifiTetherSecurityPreferenceController mSecurityPreferenceController; |
| 106 | private PreferenceGroup mWifiTetherGroup; |
| 107 | private SharedPreferences mSharedPreferences; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 108 | private boolean mWifiTetherChosen; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 109 | private TetherEnabler mTetherEnabler; |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 110 | |
| 111 | private final BroadcastReceiver mTetherChangeReceiver = new BroadcastReceiver() { |
| 112 | @Override |
| 113 | public void onReceive(Context content, Intent intent) { |
| 114 | String action = intent.getAction(); |
| 115 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 116 | Log.d(TAG, "updating display config due to receiving broadcast action " + action); |
| 117 | } |
| 118 | updateDisplayWithNewConfig(); |
| 119 | if (TextUtils.equals(action, ACTION_TETHER_STATE_CHANGED)) { |
| 120 | if (mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_DISABLED |
| 121 | && mRestartWifiApAfterConfigChange) { |
| 122 | mRestartWifiApAfterConfigChange = false; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 123 | mTetherEnabler.startTethering(TETHERING_WIFI); |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 124 | } |
| 125 | } else if (TextUtils.equals(action, WIFI_AP_STATE_CHANGED_ACTION)) { |
| 126 | int state = intent.getIntExtra(WifiManager.EXTRA_WIFI_AP_STATE, 0); |
| 127 | if (state == WifiManager.WIFI_AP_STATE_DISABLED |
| 128 | && mRestartWifiApAfterConfigChange) { |
| 129 | mRestartWifiApAfterConfigChange = false; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 130 | mTetherEnabler.startTethering(TETHERING_WIFI); |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 131 | } |
| 132 | } |
| 133 | } |
| 134 | }; |
| 135 | |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 136 | private final BluetoothProfile.ServiceListener mProfileServiceListener = |
| 137 | new BluetoothProfile.ServiceListener() { |
| 138 | public void onServiceConnected(int profile, BluetoothProfile proxy) { |
| 139 | mBluetoothPan.set((BluetoothPan) proxy); |
| 140 | } |
| 141 | |
| 142 | public void onServiceDisconnected(int profile) { |
| 143 | mBluetoothPan.set(null); |
| 144 | } |
| 145 | }; |
| 146 | |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 147 | @Override |
| 148 | public int getMetricsCategory() { |
| 149 | return SettingsEnums.TETHER; |
| 150 | } |
| 151 | |
| 152 | public AllInOneTetherSettings() { |
| 153 | super(UserManager.DISALLOW_CONFIG_TETHERING); |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | public void onAttach(Context context) { |
| 158 | super.onAttach(context); |
| 159 | mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 160 | mSharedPreferences = |
| 161 | context.getSharedPreferences(TetherEnabler.SHARED_PREF, Context.MODE_PRIVATE); |
| 162 | |
| 163 | mSSIDPreferenceController = use(WifiTetherSSIDPreferenceController.class); |
| 164 | mSecurityPreferenceController = use(WifiTetherSecurityPreferenceController.class); |
| 165 | mPasswordPreferenceController = use(WifiTetherPasswordPreferenceController.class); |
| 166 | mApBandPreferenceController = use(WifiTetherApBandPreferenceController.class); |
| 167 | } |
| 168 | |
| 169 | @Override |
| 170 | public void onCreate(Bundle icicle) { |
| 171 | super.onCreate(icicle); |
| 172 | |
| 173 | mDataSaverBackend = new DataSaverBackend(getContext()); |
| 174 | mDataSaverEnabled = mDataSaverBackend.isDataSaverEnabled(); |
| 175 | mDataSaverFooter = findPreference(KEY_DATA_SAVER_FOOTER); |
| 176 | mWifiTetherGroup = findPreference(KEY_WIFI_TETHER_GROUP); |
| 177 | |
| 178 | setIfOnlyAvailableForAdmins(true); |
| 179 | if (isUiRestricted()) { |
| 180 | mUnavailable = true; |
| 181 | return; |
| 182 | } |
| 183 | |
| 184 | mDataSaverBackend.addListener(this); |
| 185 | |
| 186 | // Set initial state based on Data Saver mode. |
| 187 | onDataSaverChanged(mDataSaverBackend.isDataSaverEnabled()); |
| 188 | |
| 189 | // Set initial state based on SharedPreferences value. |
| 190 | onSharedPreferenceChanged(mSharedPreferences, KEY_ENABLE_WIFI_TETHERING); |
| 191 | |
| 192 | // TODO(b/147325229): Hide advanced settings like security and ap band. |
| 193 | } |
| 194 | |
| 195 | @Override |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 196 | public void onActivityCreated(Bundle savedInstanceState) { |
| 197 | super.onActivityCreated(savedInstanceState); |
| 198 | if (mUnavailable) { |
| 199 | return; |
| 200 | } |
| 201 | // Assume we are in a SettingsActivity. This is only safe because we currently use |
| 202 | // SettingsActivity as base for all preference fragments. |
| 203 | final SettingsActivity activity = (SettingsActivity) getActivity(); |
Zhen Zhang | 0ccc849 | 2020-01-17 15:23:40 -0800 | [diff] [blame^] | 204 | final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 205 | if (adapter != null) { |
| 206 | adapter.getProfileProxy(activity.getApplicationContext(), mProfileServiceListener, |
| 207 | BluetoothProfile.PAN); |
| 208 | } |
| 209 | final SwitchBar switchBar = activity.getSwitchBar(); |
| 210 | mTetherEnabler = new TetherEnabler(activity, |
| 211 | new SwitchBarController(switchBar), mBluetoothPan); |
| 212 | getSettingsLifecycle().addObserver(mTetherEnabler); |
| 213 | switchBar.show(); |
| 214 | } |
| 215 | |
| 216 | @Override |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 217 | public void onStart() { |
| 218 | super.onStart(); |
| 219 | |
| 220 | if (mUnavailable) { |
| 221 | if (!isUiRestrictedByOnlyAdmin()) { |
| 222 | getEmptyTextView().setText(R.string.tethering_settings_not_available); |
| 223 | } |
| 224 | getPreferenceScreen().removeAll(); |
| 225 | return; |
| 226 | } |
| 227 | final Context context = getContext(); |
| 228 | if (context != null) { |
| 229 | IntentFilter filter = new IntentFilter(ACTION_TETHER_STATE_CHANGED); |
| 230 | filter.addAction(WIFI_AP_STATE_CHANGED_ACTION); |
| 231 | context.registerReceiver(mTetherChangeReceiver, filter); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | @Override |
| 236 | public void onResume() { |
| 237 | super.onResume(); |
| 238 | mSharedPreferences.registerOnSharedPreferenceChangeListener(this); |
| 239 | } |
| 240 | |
| 241 | @Override |
| 242 | public void onPause() { |
| 243 | super.onPause(); |
| 244 | mSharedPreferences.unregisterOnSharedPreferenceChangeListener(this); |
| 245 | } |
| 246 | |
| 247 | @Override |
| 248 | public void onStop() { |
| 249 | super.onStop(); |
| 250 | final Context context = getContext(); |
| 251 | if (context != null) { |
| 252 | context.unregisterReceiver(mTetherChangeReceiver); |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | @Override |
| 257 | public void onDestroy() { |
| 258 | mDataSaverBackend.remListener(this); |
| 259 | super.onDestroy(); |
| 260 | } |
| 261 | |
| 262 | @Override |
| 263 | public void onDataSaverChanged(boolean isDataSaving) { |
| 264 | mDataSaverEnabled = isDataSaving; |
| 265 | mDataSaverFooter.setVisible(mDataSaverEnabled); |
| 266 | } |
| 267 | |
| 268 | @Override |
| 269 | public void onWhitelistStatusChanged(int uid, boolean isWhitelisted) { |
| 270 | // Do nothing |
| 271 | } |
| 272 | |
| 273 | @Override |
| 274 | public void onBlacklistStatusChanged(int uid, boolean isBlacklisted) { |
| 275 | // Do nothing |
| 276 | } |
| 277 | |
| 278 | @Override |
| 279 | protected List<AbstractPreferenceController> createPreferenceControllers(Context context) { |
| 280 | return buildPreferenceControllers(context, this); |
| 281 | } |
| 282 | |
| 283 | private static List<AbstractPreferenceController> buildPreferenceControllers(Context context, |
| 284 | WifiTetherBasePreferenceController.OnTetherConfigUpdateListener listener) { |
| 285 | final List<AbstractPreferenceController> controllers = new ArrayList<>(); |
| 286 | controllers.add( |
| 287 | new WifiTetherSSIDPreferenceController(context, listener)); |
| 288 | controllers.add( |
| 289 | new WifiTetherPasswordPreferenceController(context, listener)); |
| 290 | controllers.add( |
| 291 | new WifiTetherApBandPreferenceController(context, listener)); |
| 292 | controllers.add( |
| 293 | new WifiTetherSecurityPreferenceController(context, listener)); |
| 294 | controllers.add( |
| 295 | new WifiTetherAutoOffPreferenceController(context, KEY_WIFI_TETHER_AUTO_OFF)); |
| 296 | |
| 297 | return controllers; |
| 298 | } |
| 299 | |
| 300 | @Override |
| 301 | protected int getPreferenceScreenResId() { |
| 302 | return R.xml.all_tether_prefs; |
| 303 | } |
| 304 | |
| 305 | @Override |
| 306 | protected String getLogTag() { |
| 307 | return TAG; |
| 308 | } |
| 309 | |
| 310 | @Override |
| 311 | public void onExpandButtonClick() { |
| 312 | super.onExpandButtonClick(); |
| 313 | // TODO(b/147325229): Display hidden advanced settings like security and ap band. |
| 314 | } |
| 315 | |
| 316 | @Override |
| 317 | public int getHelpResource() { |
| 318 | return R.string.help_url_tether; |
| 319 | } |
| 320 | |
| 321 | @Override |
| 322 | public void onTetherConfigUpdated(AbstractPreferenceController controller) { |
| 323 | final SoftApConfiguration config = buildNewConfig(); |
| 324 | mPasswordPreferenceController.updateVisibility(config.getSecurityType()); |
| 325 | mWifiManager.setSoftApConfiguration(config); |
| 326 | |
| 327 | if (mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_ENABLED) { |
| 328 | if (Log.isLoggable(TAG, Log.DEBUG)) { |
| 329 | Log.d(TAG, "Wifi AP config changed while enabled, stop and restart"); |
| 330 | } |
| 331 | mRestartWifiApAfterConfigChange = true; |
Zhen Zhang | 02dfed6 | 2020-01-13 14:57:23 -0800 | [diff] [blame] | 332 | mTetherEnabler.stopTethering(TETHERING_WIFI); |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 333 | } |
| 334 | |
| 335 | if (controller instanceof WifiTetherSecurityPreferenceController) { |
| 336 | reConfigInitialExpandedChildCount(); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | private SoftApConfiguration buildNewConfig() { |
| 341 | final SoftApConfiguration.Builder configBuilder = new SoftApConfiguration.Builder(); |
| 342 | final int securityType = mSecurityPreferenceController.getSecurityType(); |
| 343 | configBuilder.setSsid(mSSIDPreferenceController.getSSID()); |
| 344 | if (securityType == SoftApConfiguration.SECURITY_TYPE_WPA2_PSK) { |
| 345 | configBuilder.setPassphrase( |
| 346 | mPasswordPreferenceController.getPasswordValidated(securityType), |
| 347 | SoftApConfiguration.SECURITY_TYPE_WPA2_PSK); |
| 348 | } |
| 349 | configBuilder.setBand(mApBandPreferenceController.getBandIndex()); |
| 350 | return configBuilder.build(); |
| 351 | } |
| 352 | |
| 353 | private void updateDisplayWithNewConfig() { |
| 354 | mSSIDPreferenceController.updateDisplay(); |
| 355 | mSecurityPreferenceController.updateDisplay(); |
| 356 | mPasswordPreferenceController.updateDisplay(); |
| 357 | mApBandPreferenceController.updateDisplay(); |
| 358 | } |
| 359 | |
| 360 | @Override |
| 361 | public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { |
| 362 | if (TextUtils.equals(key, KEY_ENABLE_WIFI_TETHERING)) { |
| 363 | mWifiTetherChosen = sharedPreferences.getBoolean(KEY_ENABLE_WIFI_TETHERING, true); |
| 364 | mWifiTetherGroup.setVisible(mWifiTetherChosen); |
| 365 | reConfigInitialExpandedChildCount(); |
| 366 | } |
| 367 | } |
| 368 | |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 369 | private void reConfigInitialExpandedChildCount() { |
| 370 | getPreferenceScreen().setInitialExpandedChildrenCount(getInitialExpandedChildCount()); |
| 371 | } |
| 372 | |
| 373 | @Override |
| 374 | public int getInitialExpandedChildCount() { |
| 375 | if (!mWifiTetherChosen) { |
| 376 | // Expand all preferences in the screen. |
| 377 | return getPreferenceScreen().getPreferenceCount(); |
| 378 | } |
| 379 | |
| 380 | if (mSecurityPreferenceController == null) { |
| 381 | return EXPANDED_CHILD_COUNT_DEFAULT; |
| 382 | } |
| 383 | |
| 384 | return (mSecurityPreferenceController.getSecurityType() |
| 385 | == SoftApConfiguration.SECURITY_TYPE_OPEN) |
| 386 | ? EXPANDED_CHILD_COUNT_WITH_SECURITY_NON : EXPANDED_CHILD_COUNT_DEFAULT; |
| 387 | } |
| 388 | |
| 389 | public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = |
| 390 | new BaseSearchIndexProvider(R.xml.all_tether_prefs) { |
| 391 | |
| 392 | @Override |
| 393 | public List<String> getNonIndexableKeys(Context context) { |
| 394 | final List<String> keys = super.getNonIndexableKeys(context); |
| 395 | |
| 396 | if (!TetherUtil.isTetherAvailable(context)) { |
| 397 | keys.add(KEY_TETHER_PREFS_SCREEN); |
| 398 | keys.add(KEY_WIFI_TETHER_NETWORK_NAME); |
| 399 | keys.add(KEY_WIFI_TETHER_NETWORK_PASSWORD); |
| 400 | keys.add(KEY_WIFI_TETHER_AUTO_OFF); |
| 401 | keys.add(KEY_WIFI_TETHER_NETWORK_AP_BAND); |
| 402 | } |
| 403 | |
| 404 | return keys; |
| 405 | } |
| 406 | |
| 407 | @Override |
Zhen Zhang | 0ccc849 | 2020-01-17 15:23:40 -0800 | [diff] [blame^] | 408 | protected boolean isPageSearchEnabled(Context context) { |
| 409 | return context.getResources().getBoolean( |
| 410 | R.bool.config_show_all_in_one_tether_settings); |
| 411 | } |
| 412 | |
| 413 | @Override |
Zhen Zhang | b60e8ca | 2020-01-07 18:14:30 -0800 | [diff] [blame] | 414 | public List<AbstractPreferenceController> createPreferenceControllers( |
| 415 | Context context) { |
| 416 | return buildPreferenceControllers(context, null /* AllTetherSettings */); |
| 417 | } |
| 418 | }; |
| 419 | } |