src/com/android/settings/network/telephony/MobileNetworkSettings.java - platform/packages/apps/Settings - Git at Google

 /*
  * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings.network.telephony;

 import android.app.Activity;
 import android.app.settings.SettingsEnums;
 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.os.UserManager;
 import android.provider.Settings;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;

 import androidx.annotation.VisibleForTesting;
 import androidx.preference.Preference;

 import com.android.settings.R;
 import com.android.settings.Settings.MobileNetworkActivity;
 import com.android.settings.SettingsActivity;
 import com.android.settings.datausage.BillingCyclePreferenceController;
 import com.android.settings.datausage.DataUsageSummaryPreferenceController;
 import com.android.settings.network.CarrierWifiTogglePreferenceController;
 import com.android.settings.network.MobileNetworkRepository;
 import com.android.settings.network.SubscriptionUtil;
 import com.android.settings.network.telephony.cdma.CdmaSubscriptionPreferenceController;
 import com.android.settings.network.telephony.cdma.CdmaSystemSelectPreferenceController;
 import com.android.settings.network.telephony.gsm.AutoSelectPreferenceController;
 import com.android.settings.network.telephony.gsm.OpenNetworkSelectPagePreferenceController;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.wifi.WifiPickerTrackerHelper;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.mobile.dataservice.DataServiceUtils;
 import com.android.settingslib.mobile.dataservice.MobileNetworkInfoEntity;
 import com.android.settingslib.mobile.dataservice.SubscriptionInfoEntity;
 import com.android.settingslib.mobile.dataservice.UiccInfoEntity;
 import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.utils.ThreadUtils;

 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.function.Consumer;

 @SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
 public class MobileNetworkSettings extends AbstractMobileNetworkSettings implements
         MobileNetworkRepository.MobileNetworkCallback {

     private static final String LOG_TAG = "NetworkSettings";
     public static final int REQUEST_CODE_EXIT_ECM = 17;
     public static final int REQUEST_CODE_DELETE_SUBSCRIPTION = 18;
     @VisibleForTesting
     static final String KEY_CLICKED_PREF = "key_clicked_pref";

     private static final String KEY_ROAMING_PREF = "button_roaming_key";
     private static final String KEY_CALLS_PREF = "calls_preference";
     private static final String KEY_SMS_PREF = "sms_preference";
     private static final String KEY_MOBILE_DATA_PREF = "mobile_data_enable";

     //String keys for preference lookup
     private static final String BUTTON_CDMA_SYSTEM_SELECT_KEY = "cdma_system_select_key";
     private static final String BUTTON_CDMA_SUBSCRIPTION_KEY = "cdma_subscription_key";

     private final ExecutorService mExecutor = Executors.newSingleThreadExecutor();

     private TelephonyManager mTelephonyManager;
     private int mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;

     private CdmaSystemSelectPreferenceController mCdmaSystemSelectPreferenceController;
     private CdmaSubscriptionPreferenceController mCdmaSubscriptionPreferenceController;

     private UserManager mUserManager;
     private String mClickedPrefKey;

     private MobileNetworkRepository mMobileNetworkRepository;
     private List<SubscriptionInfoEntity> mSubInfoEntityList = new ArrayList<>();
     private Map<Integer, SubscriptionInfoEntity> mSubscriptionInfoMap = new HashMap<>();
     private SubscriptionInfoEntity mSubscriptionInfoEntity;
     private MobileNetworkInfoEntity mMobileNetworkInfoEntity;

     public MobileNetworkSettings() {
         super(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS);
     }

     @Override
     public int getMetricsCategory() {
         return SettingsEnums.MOBILE_NETWORK;
     }

     /**
      * Invoked on each preference click in this hierarchy, overrides
      * PreferenceActivity's implementation.  Used to make sure we track the
      * preference click events.
      */
     @Override
     public boolean onPreferenceTreeClick(Preference preference) {
         if (super.onPreferenceTreeClick(preference)) {
             return true;
         }
         final String key = preference.getKey();

         if (TextUtils.equals(key, BUTTON_CDMA_SYSTEM_SELECT_KEY)
                 || TextUtils.equals(key, BUTTON_CDMA_SUBSCRIPTION_KEY)) {
             if (mTelephonyManager.getEmergencyCallbackMode()) {
                 startActivityForResult(
                         new Intent(TelephonyManager.ACTION_SHOW_NOTICE_ECM_BLOCK_OTHERS, null),
                         REQUEST_CODE_EXIT_ECM);
                 mClickedPrefKey = key;
             }
             return true;
         }

         return false;
     }

     @Override
     protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
         if (!SubscriptionUtil.isSimHardwareVisible(context)) {
             finish();
             return Arrays.asList();
         }
         if (getArguments() == null) {
             Intent intent = getIntent();
             if (intent != null) {
                 mSubId = intent.getIntExtra(Settings.EXTRA_SUB_ID,
                         MobileNetworkUtils.getSearchableSubscriptionId(context));
                 Log.d(LOG_TAG, "display subId from intent: " + mSubId);
             } else {
                 Log.d(LOG_TAG, "intent is null, can not get the subId from intent.");
             }
         } else {
             mSubId = getArguments().getInt(Settings.EXTRA_SUB_ID,
                     MobileNetworkUtils.getSearchableSubscriptionId(context));
             Log.d(LOG_TAG, "display subId from getArguments(): " + mSubId);
         }
         mMobileNetworkRepository = MobileNetworkRepository.create(context, this);
         mExecutor.execute(() -> {
             mSubscriptionInfoEntity = mMobileNetworkRepository.getSubInfoById(
                     String.valueOf(mSubId));
             mMobileNetworkInfoEntity =
                     mMobileNetworkRepository.queryMobileNetworkInfoBySubId(
                             String.valueOf(mSubId));
         });
         if (mSubId <= SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
             return Arrays.asList();
         }
         return Arrays.asList(
                 new DataUsageSummaryPreferenceController(getActivity(), getSettingsLifecycle(),
                         this, mSubId),
                 new RoamingPreferenceController(context, KEY_ROAMING_PREF, getSettingsLifecycle(),
                         this, mSubId),
                 new CallsDefaultSubscriptionController(context, KEY_CALLS_PREF,
                         getSettingsLifecycle(), this),
                 new SmsDefaultSubscriptionController(context, KEY_SMS_PREF, getSettingsLifecycle(),
                         this),
                 new MobileDataPreferenceController(context, KEY_MOBILE_DATA_PREF,
                         getSettingsLifecycle(), this, mSubId));
     }

     @Override
     public void onAttach(Context context) {
         super.onAttach(context);

         if (mSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
             Log.d(LOG_TAG, "Invalid subId request " + mSubId);
             return;
         }

         Intent intent = getIntent();
         if (intent != null) {
             int updateSubscriptionIndex = intent.getIntExtra(Settings.EXTRA_SUB_ID,
                     SubscriptionManager.INVALID_SUBSCRIPTION_ID);

             if (updateSubscriptionIndex != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
                 int oldSubId = mSubId;
                 mSubId = updateSubscriptionIndex;
                 // If the subscription has changed or the new intent does not contain the opt in
                 // action,
                 // remove the old discovery dialog. If the activity is being recreated, we will see
                 // onCreate -> onNewIntent, so the dialog will first be recreated for the old
                 // subscription
                 // and then removed.
                 if (updateSubscriptionIndex != oldSubId
                         || !MobileNetworkActivity.doesIntentContainOptInAction(intent)) {
                     removeContactDiscoveryDialog(oldSubId);
                 }

                 // evaluate showing the new discovery dialog if this intent contains an action to
                 // show the
                 // opt-in.
                 if (MobileNetworkActivity.doesIntentContainOptInAction(intent)) {
                     showContactDiscoveryDialog();
                 }
             }

         }

         final DataUsageSummaryPreferenceController dataUsageSummaryPreferenceController =
                 use(DataUsageSummaryPreferenceController.class);
         if (dataUsageSummaryPreferenceController != null) {
             dataUsageSummaryPreferenceController.init(mSubId);
         }
         use(MobileNetworkSwitchController.class).init(mSubId);
         use(CarrierSettingsVersionPreferenceController.class).init(mSubId);
         use(BillingCyclePreferenceController.class).init(mSubId);
         use(MmsMessagePreferenceController.class).init(mSubId);
         use(AutoDataSwitchPreferenceController.class).init(mSubId);
         use(DisabledSubscriptionController.class).init(mSubId);
         use(DeleteSimProfilePreferenceController.class).init(mSubId, this,
                 REQUEST_CODE_DELETE_SUBSCRIPTION);
         use(DisableSimFooterPreferenceController.class).init(mSubId);
         use(NrDisabledInDsdsFooterPreferenceController.class).init(mSubId);

         final MobileDataPreferenceController mobileDataPreferenceController =
                 use(MobileDataPreferenceController.class);
         if (mobileDataPreferenceController != null) {
             mobileDataPreferenceController.init(getFragmentManager(), mSubId,
                     mSubscriptionInfoEntity, mMobileNetworkInfoEntity);
             mobileDataPreferenceController.setWifiPickerTrackerHelper(
                     new WifiPickerTrackerHelper(getSettingsLifecycle(), context,
                             null /* WifiPickerTrackerCallback */));
         }

         final RoamingPreferenceController roamingPreferenceController =
                 use(RoamingPreferenceController.class);
         if (roamingPreferenceController != null) {
             roamingPreferenceController.init(getFragmentManager(), mSubId,
                     mMobileNetworkInfoEntity);
         }
         use(ApnPreferenceController.class).init(mSubId);
         use(CarrierPreferenceController.class).init(mSubId);
         use(DataUsagePreferenceController.class).init(mSubId);
         use(PreferredNetworkModePreferenceController.class).init(mSubId);
         use(EnabledNetworkModePreferenceController.class).init(mSubId);
         use(DataServiceSetupPreferenceController.class).init(mSubId);
         use(Enable2gPreferenceController.class).init(mSubId);
         use(CarrierWifiTogglePreferenceController.class).init(getLifecycle(), mSubId);

         final WifiCallingPreferenceController wifiCallingPreferenceController =
                 use(WifiCallingPreferenceController.class).init(mSubId);

         final OpenNetworkSelectPagePreferenceController openNetworkSelectPagePreferenceController =
                 use(OpenNetworkSelectPagePreferenceController.class).init(mSubId);
         final AutoSelectPreferenceController autoSelectPreferenceController =
                 use(AutoSelectPreferenceController.class)
                         .init(mSubId)
                         .addListener(openNetworkSelectPagePreferenceController);
         use(NetworkPreferenceCategoryController.class).init(mSubId)
                 .setChildren(Arrays.asList(autoSelectPreferenceController));
         mCdmaSystemSelectPreferenceController = use(CdmaSystemSelectPreferenceController.class);
         mCdmaSystemSelectPreferenceController.init(getPreferenceManager(), mSubId);
         mCdmaSubscriptionPreferenceController = use(CdmaSubscriptionPreferenceController.class);
         mCdmaSubscriptionPreferenceController.init(getPreferenceManager(), mSubId);

         final VideoCallingPreferenceController videoCallingPreferenceController =
                 use(VideoCallingPreferenceController.class).init(mSubId);
         final BackupCallingPreferenceController crossSimCallingPreferenceController =
                 use(BackupCallingPreferenceController.class).init(mSubId);
         use(CallingPreferenceCategoryController.class).setChildren(
                 Arrays.asList(wifiCallingPreferenceController, videoCallingPreferenceController,
                         crossSimCallingPreferenceController));
         use(Enhanced4gLtePreferenceController.class).init(mSubId)
                 .addListener(videoCallingPreferenceController);
         use(Enhanced4gCallingPreferenceController.class).init(mSubId)
                 .addListener(videoCallingPreferenceController);
         use(Enhanced4gAdvancedCallingPreferenceController.class).init(mSubId)
                 .addListener(videoCallingPreferenceController);
         use(ContactDiscoveryPreferenceController.class).init(getParentFragmentManager(), mSubId);
         use(NrAdvancedCallingPreferenceController.class).init(mSubId);
     }

     @Override
     public void onCreate(Bundle icicle) {
         Log.i(LOG_TAG, "onCreate:+");

         final TelephonyStatusControlSession session =
                 setTelephonyAvailabilityStatus(getPreferenceControllersAsList());

         super.onCreate(icicle);
         final Context context = getContext();
         mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
         mTelephonyManager = context.getSystemService(TelephonyManager.class)
                 .createForSubscriptionId(mSubId);

         session.close();

         onRestoreInstance(icicle);
     }

     @Override
     public void onResume() {
         super.onResume();
         mMobileNetworkRepository.addRegister(this);
         // TODO: remove log after fixing b/182326102
         Log.d(LOG_TAG, "onResume() subId=" + mSubId);
     }

     private void onSubscriptionDetailChanged() {

         if (mSubscriptionInfoEntity != null) {
             /**
              * Update the title when SIM stats got changed
              */
             final Consumer<Activity> renameTitle = activity -> {
                 if (activity != null && !activity.isFinishing()) {
                     if (activity instanceof SettingsActivity) {
                         ((SettingsActivity) activity).setTitle(mSubscriptionInfoEntity.uniqueName);
                     }
                 }
             };

             ThreadUtils.postOnMainThread(() -> {
                 renameTitle.accept(getActivity());
                 redrawPreferenceControllers();
             });
         }
     }

     @Override
     public void onDestroy() {
         super.onDestroy();
         mMobileNetworkRepository.removeRegister();
     }

     @VisibleForTesting
     void onRestoreInstance(Bundle icicle) {
         if (icicle != null) {
             mClickedPrefKey = icicle.getString(KEY_CLICKED_PREF);
         }
     }

     @Override
     protected int getPreferenceScreenResId() {
         return R.xml.mobile_network_settings;
     }

     @Override
     protected String getLogTag() {
         return LOG_TAG;
     }

     @Override
     public void onSaveInstanceState(Bundle outState) {
         super.onSaveInstanceState(outState);
         outState.putString(KEY_CLICKED_PREF, mClickedPrefKey);
     }

     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         switch (requestCode) {
             case REQUEST_CODE_EXIT_ECM:
                 if (resultCode != Activity.RESULT_CANCELED) {
                     // If the phone exits from ECM mode, show the CDMA
                     final Preference preference = getPreferenceScreen()
                             .findPreference(mClickedPrefKey);
                     if (preference != null) {
                         preference.performClick();
                     }
                 }
                 break;

             case REQUEST_CODE_DELETE_SUBSCRIPTION:
                 if (resultCode != Activity.RESULT_CANCELED) {
                     final Activity activity = getActivity();
                     if (activity != null && !activity.isFinishing()) {
                         activity.finish();
                     }
                 }
                 break;

             default:
                 break;
         }
     }

     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
         if (mSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
             final MenuItem item = menu.add(Menu.NONE, R.id.edit_sim_name, Menu.NONE,
                     R.string.mobile_network_sim_name);
             item.setIcon(com.android.internal.R.drawable.ic_mode_edit);
             item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
         }
         super.onCreateOptionsMenu(menu, inflater);
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem menuItem) {
         if (mSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
             if (menuItem.getItemId() == R.id.edit_sim_name) {
                 RenameMobileNetworkDialogFragment.newInstance(mSubId).show(
                         getFragmentManager(), RenameMobileNetworkDialogFragment.TAG);
                 return true;
             }
         }
         return super.onOptionsItemSelected(menuItem);
     }

     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider(R.xml.mobile_network_settings) {

                 /** suppress full page if user is not admin */
                 @Override
                 protected boolean isPageSearchEnabled(Context context) {
                     return SubscriptionUtil.isSimHardwareVisible(context) &&
                             context.getSystemService(UserManager.class).isAdminUser();
                 }
             };

     private ContactDiscoveryDialogFragment getContactDiscoveryFragment(int subId) {
         // In the case that we are rebuilding this activity after it has been destroyed and
         // recreated, look up the dialog in the fragment manager.
         return (ContactDiscoveryDialogFragment) getChildFragmentManager()
                 .findFragmentByTag(ContactDiscoveryDialogFragment.getFragmentTag(subId));
     }


     private void removeContactDiscoveryDialog(int subId) {
         ContactDiscoveryDialogFragment fragment = getContactDiscoveryFragment(subId);
         if (fragment != null) {
             fragment.dismiss();
         }
     }

     private void showContactDiscoveryDialog() {
         ContactDiscoveryDialogFragment fragment = getContactDiscoveryFragment(mSubId);

         if (mSubscriptionInfoEntity == null) {
             Log.d(LOG_TAG, "Zoey, showContactDiscoveryDialog, Invalid subId request " + mSubId);
             onDestroy();
             return;
         }

         if (fragment == null) {
             fragment = ContactDiscoveryDialogFragment.newInstance(mSubId,
                     mSubscriptionInfoEntity.uniqueName);
         }
         // Only try to show the dialog if it has not already been added, otherwise we may
         // accidentally add it multiple times, causing multiple dialogs.
         if (!fragment.isAdded()) {
             fragment.show(getChildFragmentManager(),
                     ContactDiscoveryDialogFragment.getFragmentTag(mSubId));
         }
     }

     @Override
     public void onAvailableSubInfoChanged(List<SubscriptionInfoEntity> subInfoEntityList) {
     }

     @Override
     public void onActiveSubInfoChanged(List<SubscriptionInfoEntity> subInfoEntityList) {
         if (DataServiceUtils.shouldUpdateEntityList(mSubInfoEntityList, subInfoEntityList)) {

             // Check the current subId is existed or not, if so, finish it.
             if (!mSubscriptionInfoMap.isEmpty()) {

                 // Check each subInfo and remove it in the map based on the new list.
                 for (SubscriptionInfoEntity entity : subInfoEntityList) {
                     mSubscriptionInfoMap.remove(Integer.parseInt(entity.subId));
                 }

                 Iterator<Integer> iterator = mSubscriptionInfoMap.keySet().iterator();
                 while (iterator.hasNext()) {
                     if (iterator.next() == mSubId) {
                         finishFragment();
                         return;
                     }
                 }
             }

             mSubInfoEntityList = subInfoEntityList;
             mSubInfoEntityList.forEach(entity -> {
                 int subId = Integer.parseInt(entity.subId);
                 mSubscriptionInfoMap.put(subId, entity);
                 if (subId == mSubId) {
                     mSubscriptionInfoEntity = entity;
                     onSubscriptionDetailChanged();
                 }
             });
         }
     }

     @Override
     public void onAllUiccInfoChanged(List<UiccInfoEntity> uiccInfoEntityList) {
     }

     @Override
     public void onAllMobileNetworkInfoChanged(
             List<MobileNetworkInfoEntity> mobileNetworkInfoEntityList) {
     }

     @Override
     public void onAirplaneModeChanged(boolean enabled) {
     }
 }
	/*
	* Copyright (C) 2018 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings.network.telephony;

	import android.app.Activity;
	import android.app.settings.SettingsEnums;
	import android.content.Context;
	import android.content.Intent;
	import android.os.Bundle;
	import android.os.UserManager;
	import android.provider.Settings;
	import android.telephony.SubscriptionManager;
	import android.telephony.TelephonyManager;
	import android.text.TextUtils;
	import android.util.Log;
	import android.view.Menu;
	import android.view.MenuInflater;
	import android.view.MenuItem;

	import androidx.annotation.VisibleForTesting;
	import androidx.preference.Preference;

	import com.android.settings.R;
	import com.android.settings.Settings.MobileNetworkActivity;
	import com.android.settings.SettingsActivity;
	import com.android.settings.datausage.BillingCyclePreferenceController;
	import com.android.settings.datausage.DataUsageSummaryPreferenceController;
	import com.android.settings.network.CarrierWifiTogglePreferenceController;
	import com.android.settings.network.MobileNetworkRepository;
	import com.android.settings.network.SubscriptionUtil;
	import com.android.settings.network.telephony.cdma.CdmaSubscriptionPreferenceController;
	import com.android.settings.network.telephony.cdma.CdmaSystemSelectPreferenceController;
	import com.android.settings.network.telephony.gsm.AutoSelectPreferenceController;
	import com.android.settings.network.telephony.gsm.OpenNetworkSelectPagePreferenceController;
	import com.android.settings.search.BaseSearchIndexProvider;
	import com.android.settings.wifi.WifiPickerTrackerHelper;
	import com.android.settingslib.core.AbstractPreferenceController;
	import com.android.settingslib.mobile.dataservice.DataServiceUtils;
	import com.android.settingslib.mobile.dataservice.MobileNetworkInfoEntity;
	import com.android.settingslib.mobile.dataservice.SubscriptionInfoEntity;
	import com.android.settingslib.mobile.dataservice.UiccInfoEntity;
	import com.android.settingslib.search.SearchIndexable;
	import com.android.settingslib.utils.ThreadUtils;

	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;
	import java.util.concurrent.ExecutorService;
	import java.util.concurrent.Executors;
	import java.util.function.Consumer;

	@SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
	public class MobileNetworkSettings extends AbstractMobileNetworkSettings implements
	MobileNetworkRepository.MobileNetworkCallback {

	private static final String LOG_TAG = "NetworkSettings";
	public static final int REQUEST_CODE_EXIT_ECM = 17;
	public static final int REQUEST_CODE_DELETE_SUBSCRIPTION = 18;
	@VisibleForTesting
	static final String KEY_CLICKED_PREF = "key_clicked_pref";

	private static final String KEY_ROAMING_PREF = "button_roaming_key";
	private static final String KEY_CALLS_PREF = "calls_preference";
	private static final String KEY_SMS_PREF = "sms_preference";
	private static final String KEY_MOBILE_DATA_PREF = "mobile_data_enable";

	//String keys for preference lookup
	private static final String BUTTON_CDMA_SYSTEM_SELECT_KEY = "cdma_system_select_key";
	private static final String BUTTON_CDMA_SUBSCRIPTION_KEY = "cdma_subscription_key";

	private final ExecutorService mExecutor = Executors.newSingleThreadExecutor();

	private TelephonyManager mTelephonyManager;
	private int mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;

	private CdmaSystemSelectPreferenceController mCdmaSystemSelectPreferenceController;
	private CdmaSubscriptionPreferenceController mCdmaSubscriptionPreferenceController;

	private UserManager mUserManager;
	private String mClickedPrefKey;

	private MobileNetworkRepository mMobileNetworkRepository;
	private List<SubscriptionInfoEntity> mSubInfoEntityList = new ArrayList<>();
	private Map<Integer, SubscriptionInfoEntity> mSubscriptionInfoMap = new HashMap<>();
	private SubscriptionInfoEntity mSubscriptionInfoEntity;
	private MobileNetworkInfoEntity mMobileNetworkInfoEntity;

	public MobileNetworkSettings() {
	super(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS);
	}

	@Override
	public int getMetricsCategory() {
	return SettingsEnums.MOBILE_NETWORK;
	}

	/**
	* Invoked on each preference click in this hierarchy, overrides
	* PreferenceActivity's implementation. Used to make sure we track the
	* preference click events.
	*/
	@Override
	public boolean onPreferenceTreeClick(Preference preference) {
	if (super.onPreferenceTreeClick(preference)) {
	return true;
	}
	final String key = preference.getKey();

	if (TextUtils.equals(key, BUTTON_CDMA_SYSTEM_SELECT_KEY)
	\|\| TextUtils.equals(key, BUTTON_CDMA_SUBSCRIPTION_KEY)) {
	if (mTelephonyManager.getEmergencyCallbackMode()) {
	startActivityForResult(
	new Intent(TelephonyManager.ACTION_SHOW_NOTICE_ECM_BLOCK_OTHERS, null),
	REQUEST_CODE_EXIT_ECM);
	mClickedPrefKey = key;
	}
	return true;
	}

	return false;
	}

	@Override
	protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
	if (!SubscriptionUtil.isSimHardwareVisible(context)) {
	finish();
	return Arrays.asList();
	}
	if (getArguments() == null) {
	Intent intent = getIntent();
	if (intent != null) {
	mSubId = intent.getIntExtra(Settings.EXTRA_SUB_ID,
	MobileNetworkUtils.getSearchableSubscriptionId(context));
	Log.d(LOG_TAG, "display subId from intent: " + mSubId);
	} else {
	Log.d(LOG_TAG, "intent is null, can not get the subId from intent.");
	}
	} else {
	mSubId = getArguments().getInt(Settings.EXTRA_SUB_ID,
	MobileNetworkUtils.getSearchableSubscriptionId(context));
	Log.d(LOG_TAG, "display subId from getArguments(): " + mSubId);
	}
	mMobileNetworkRepository = MobileNetworkRepository.create(context, this);
	mExecutor.execute(() -> {
	mSubscriptionInfoEntity = mMobileNetworkRepository.getSubInfoById(
	String.valueOf(mSubId));
	mMobileNetworkInfoEntity =
	mMobileNetworkRepository.queryMobileNetworkInfoBySubId(
	String.valueOf(mSubId));
	});
	if (mSubId <= SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
	return Arrays.asList();
	}
	return Arrays.asList(
	new DataUsageSummaryPreferenceController(getActivity(), getSettingsLifecycle(),
	this, mSubId),
	new RoamingPreferenceController(context, KEY_ROAMING_PREF, getSettingsLifecycle(),
	this, mSubId),
	new CallsDefaultSubscriptionController(context, KEY_CALLS_PREF,
	getSettingsLifecycle(), this),
	new SmsDefaultSubscriptionController(context, KEY_SMS_PREF, getSettingsLifecycle(),
	this),
	new MobileDataPreferenceController(context, KEY_MOBILE_DATA_PREF,
	getSettingsLifecycle(), this, mSubId));
	}

	@Override
	public void onAttach(Context context) {
	super.onAttach(context);

	if (mSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
	Log.d(LOG_TAG, "Invalid subId request " + mSubId);
	return;
	}

	Intent intent = getIntent();
	if (intent != null) {
	int updateSubscriptionIndex = intent.getIntExtra(Settings.EXTRA_SUB_ID,
	SubscriptionManager.INVALID_SUBSCRIPTION_ID);

	if (updateSubscriptionIndex != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
	int oldSubId = mSubId;
	mSubId = updateSubscriptionIndex;
	// If the subscription has changed or the new intent does not contain the opt in
	// action,
	// remove the old discovery dialog. If the activity is being recreated, we will see
	// onCreate -> onNewIntent, so the dialog will first be recreated for the old
	// subscription
	// and then removed.
	if (updateSubscriptionIndex != oldSubId
	\|\| !MobileNetworkActivity.doesIntentContainOptInAction(intent)) {
	removeContactDiscoveryDialog(oldSubId);
	}

	// evaluate showing the new discovery dialog if this intent contains an action to
	// show the
	// opt-in.
	if (MobileNetworkActivity.doesIntentContainOptInAction(intent)) {
	showContactDiscoveryDialog();
	}
	}

	}

	final DataUsageSummaryPreferenceController dataUsageSummaryPreferenceController =
	use(DataUsageSummaryPreferenceController.class);
	if (dataUsageSummaryPreferenceController != null) {
	dataUsageSummaryPreferenceController.init(mSubId);
	}
	use(MobileNetworkSwitchController.class).init(mSubId);
	use(CarrierSettingsVersionPreferenceController.class).init(mSubId);
	use(BillingCyclePreferenceController.class).init(mSubId);
	use(MmsMessagePreferenceController.class).init(mSubId);
	use(AutoDataSwitchPreferenceController.class).init(mSubId);
	use(DisabledSubscriptionController.class).init(mSubId);
	use(DeleteSimProfilePreferenceController.class).init(mSubId, this,
	REQUEST_CODE_DELETE_SUBSCRIPTION);
	use(DisableSimFooterPreferenceController.class).init(mSubId);
	use(NrDisabledInDsdsFooterPreferenceController.class).init(mSubId);

	final MobileDataPreferenceController mobileDataPreferenceController =
	use(MobileDataPreferenceController.class);
	if (mobileDataPreferenceController != null) {
	mobileDataPreferenceController.init(getFragmentManager(), mSubId,
	mSubscriptionInfoEntity, mMobileNetworkInfoEntity);
	mobileDataPreferenceController.setWifiPickerTrackerHelper(
	new WifiPickerTrackerHelper(getSettingsLifecycle(), context,
	null /* WifiPickerTrackerCallback */));
	}

	final RoamingPreferenceController roamingPreferenceController =
	use(RoamingPreferenceController.class);
	if (roamingPreferenceController != null) {
	roamingPreferenceController.init(getFragmentManager(), mSubId,
	mMobileNetworkInfoEntity);
	}
	use(ApnPreferenceController.class).init(mSubId);
	use(CarrierPreferenceController.class).init(mSubId);
	use(DataUsagePreferenceController.class).init(mSubId);
	use(PreferredNetworkModePreferenceController.class).init(mSubId);
	use(EnabledNetworkModePreferenceController.class).init(mSubId);
	use(DataServiceSetupPreferenceController.class).init(mSubId);
	use(Enable2gPreferenceController.class).init(mSubId);
	use(CarrierWifiTogglePreferenceController.class).init(getLifecycle(), mSubId);

	final WifiCallingPreferenceController wifiCallingPreferenceController =
	use(WifiCallingPreferenceController.class).init(mSubId);

	final OpenNetworkSelectPagePreferenceController openNetworkSelectPagePreferenceController =
	use(OpenNetworkSelectPagePreferenceController.class).init(mSubId);
	final AutoSelectPreferenceController autoSelectPreferenceController =
	use(AutoSelectPreferenceController.class)
	.init(mSubId)
	.addListener(openNetworkSelectPagePreferenceController);
	use(NetworkPreferenceCategoryController.class).init(mSubId)
	.setChildren(Arrays.asList(autoSelectPreferenceController));
	mCdmaSystemSelectPreferenceController = use(CdmaSystemSelectPreferenceController.class);
	mCdmaSystemSelectPreferenceController.init(getPreferenceManager(), mSubId);
	mCdmaSubscriptionPreferenceController = use(CdmaSubscriptionPreferenceController.class);
	mCdmaSubscriptionPreferenceController.init(getPreferenceManager(), mSubId);

	final VideoCallingPreferenceController videoCallingPreferenceController =
	use(VideoCallingPreferenceController.class).init(mSubId);
	final BackupCallingPreferenceController crossSimCallingPreferenceController =
	use(BackupCallingPreferenceController.class).init(mSubId);
	use(CallingPreferenceCategoryController.class).setChildren(
	Arrays.asList(wifiCallingPreferenceController, videoCallingPreferenceController,
	crossSimCallingPreferenceController));
	use(Enhanced4gLtePreferenceController.class).init(mSubId)
	.addListener(videoCallingPreferenceController);
	use(Enhanced4gCallingPreferenceController.class).init(mSubId)
	.addListener(videoCallingPreferenceController);
	use(Enhanced4gAdvancedCallingPreferenceController.class).init(mSubId)
	.addListener(videoCallingPreferenceController);
	use(ContactDiscoveryPreferenceController.class).init(getParentFragmentManager(), mSubId);
	use(NrAdvancedCallingPreferenceController.class).init(mSubId);
	}

	@Override
	public void onCreate(Bundle icicle) {
	Log.i(LOG_TAG, "onCreate:+");

	final TelephonyStatusControlSession session =
	setTelephonyAvailabilityStatus(getPreferenceControllersAsList());

	super.onCreate(icicle);
	final Context context = getContext();
	mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
	mTelephonyManager = context.getSystemService(TelephonyManager.class)
	.createForSubscriptionId(mSubId);

	session.close();

	onRestoreInstance(icicle);
	}

	@Override
	public void onResume() {
	super.onResume();
	mMobileNetworkRepository.addRegister(this);
	// TODO: remove log after fixing b/182326102
	Log.d(LOG_TAG, "onResume() subId=" + mSubId);
	}

	private void onSubscriptionDetailChanged() {

	if (mSubscriptionInfoEntity != null) {
	/**
	* Update the title when SIM stats got changed
	*/
	final Consumer<Activity> renameTitle = activity -> {
	if (activity != null && !activity.isFinishing()) {
	if (activity instanceof SettingsActivity) {
	((SettingsActivity) activity).setTitle(mSubscriptionInfoEntity.uniqueName);
	}
	}
	};

	ThreadUtils.postOnMainThread(() -> {
	renameTitle.accept(getActivity());
	redrawPreferenceControllers();
	});
	}
	}

	@Override
	public void onDestroy() {
	super.onDestroy();
	mMobileNetworkRepository.removeRegister();
	}

	@VisibleForTesting
	void onRestoreInstance(Bundle icicle) {
	if (icicle != null) {
	mClickedPrefKey = icicle.getString(KEY_CLICKED_PREF);
	}
	}

	@Override
	protected int getPreferenceScreenResId() {
	return R.xml.mobile_network_settings;
	}

	@Override
	protected String getLogTag() {
	return LOG_TAG;
	}

	@Override
	public void onSaveInstanceState(Bundle outState) {
	super.onSaveInstanceState(outState);
	outState.putString(KEY_CLICKED_PREF, mClickedPrefKey);
	}

	@Override
	public void onActivityResult(int requestCode, int resultCode, Intent data) {
	switch (requestCode) {
	case REQUEST_CODE_EXIT_ECM:
	if (resultCode != Activity.RESULT_CANCELED) {
	// If the phone exits from ECM mode, show the CDMA
	final Preference preference = getPreferenceScreen()
	.findPreference(mClickedPrefKey);
	if (preference != null) {
	preference.performClick();
	}
	}
	break;

	case REQUEST_CODE_DELETE_SUBSCRIPTION:
	if (resultCode != Activity.RESULT_CANCELED) {
	final Activity activity = getActivity();
	if (activity != null && !activity.isFinishing()) {
	activity.finish();
	}
	}
	break;

	default:
	break;
	}
	}

	@Override
	public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
	if (mSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
	final MenuItem item = menu.add(Menu.NONE, R.id.edit_sim_name, Menu.NONE,
	R.string.mobile_network_sim_name);
	item.setIcon(com.android.internal.R.drawable.ic_mode_edit);
	item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
	}
	super.onCreateOptionsMenu(menu, inflater);
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem menuItem) {
	if (mSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
	if (menuItem.getItemId() == R.id.edit_sim_name) {
	RenameMobileNetworkDialogFragment.newInstance(mSubId).show(
	getFragmentManager(), RenameMobileNetworkDialogFragment.TAG);
	return true;
	}
	}
	return super.onOptionsItemSelected(menuItem);
	}

	public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
	new BaseSearchIndexProvider(R.xml.mobile_network_settings) {

	/** suppress full page if user is not admin */
	@Override
	protected boolean isPageSearchEnabled(Context context) {
	return SubscriptionUtil.isSimHardwareVisible(context) &&
	context.getSystemService(UserManager.class).isAdminUser();
	}
	};

	private ContactDiscoveryDialogFragment getContactDiscoveryFragment(int subId) {
	// In the case that we are rebuilding this activity after it has been destroyed and
	// recreated, look up the dialog in the fragment manager.
	return (ContactDiscoveryDialogFragment) getChildFragmentManager()
	.findFragmentByTag(ContactDiscoveryDialogFragment.getFragmentTag(subId));
	}


	private void removeContactDiscoveryDialog(int subId) {
	ContactDiscoveryDialogFragment fragment = getContactDiscoveryFragment(subId);
	if (fragment != null) {
	fragment.dismiss();
	}
	}

	private void showContactDiscoveryDialog() {
	ContactDiscoveryDialogFragment fragment = getContactDiscoveryFragment(mSubId);

	if (mSubscriptionInfoEntity == null) {
	Log.d(LOG_TAG, "Zoey, showContactDiscoveryDialog, Invalid subId request " + mSubId);
	onDestroy();
	return;
	}

	if (fragment == null) {
	fragment = ContactDiscoveryDialogFragment.newInstance(mSubId,
	mSubscriptionInfoEntity.uniqueName);
	}
	// Only try to show the dialog if it has not already been added, otherwise we may
	// accidentally add it multiple times, causing multiple dialogs.
	if (!fragment.isAdded()) {
	fragment.show(getChildFragmentManager(),
	ContactDiscoveryDialogFragment.getFragmentTag(mSubId));
	}
	}

	@Override
	public void onAvailableSubInfoChanged(List<SubscriptionInfoEntity> subInfoEntityList) {
	}

	@Override
	public void onActiveSubInfoChanged(List<SubscriptionInfoEntity> subInfoEntityList) {
	if (DataServiceUtils.shouldUpdateEntityList(mSubInfoEntityList, subInfoEntityList)) {

	// Check the current subId is existed or not, if so, finish it.
	if (!mSubscriptionInfoMap.isEmpty()) {

	// Check each subInfo and remove it in the map based on the new list.
	for (SubscriptionInfoEntity entity : subInfoEntityList) {
	mSubscriptionInfoMap.remove(Integer.parseInt(entity.subId));
	}

	Iterator<Integer> iterator = mSubscriptionInfoMap.keySet().iterator();
	while (iterator.hasNext()) {
	if (iterator.next() == mSubId) {
	finishFragment();
	return;
	}
	}
	}

	mSubInfoEntityList = subInfoEntityList;
	mSubInfoEntityList.forEach(entity -> {
	int subId = Integer.parseInt(entity.subId);
	mSubscriptionInfoMap.put(subId, entity);
	if (subId == mSubId) {
	mSubscriptionInfoEntity = entity;
	onSubscriptionDetailChanged();
	}
	});
	}
	}

	@Override
	public void onAllUiccInfoChanged(List<UiccInfoEntity> uiccInfoEntityList) {
	}

	@Override
	public void onAllMobileNetworkInfoChanged(
	List<MobileNetworkInfoEntity> mobileNetworkInfoEntityList) {
	}

	@Override
	public void onAirplaneModeChanged(boolean enabled) {
	}
	}