| /* |
| * 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.content.Context; |
| import android.os.PersistableBundle; |
| import android.provider.Settings; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| import android.util.Log; |
| |
| import androidx.annotation.VisibleForTesting; |
| import androidx.fragment.app.FragmentManager; |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.network.GlobalSettingsChangeListener; |
| import com.android.settingslib.RestrictedSwitchPreference; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| /** |
| * Preference controller for "Roaming" |
| */ |
| public class RoamingPreferenceController extends TelephonyTogglePreferenceController implements |
| LifecycleObserver, OnStart, OnStop { |
| |
| private static final String TAG = "RoamingController"; |
| private static final String DIALOG_TAG = "MobileDataDialog"; |
| |
| private RestrictedSwitchPreference mSwitchPreference; |
| private TelephonyManager mTelephonyManager; |
| private CarrierConfigManager mCarrierConfigManager; |
| |
| /** |
| * There're 2 listeners both activated at the same time. |
| * For project that access DATA_ROAMING, only first listener is functional. |
| * For project that access "DATA_ROAMING + subId", first listener will be stopped when receiving |
| * any onChange from second listener. |
| */ |
| private GlobalSettingsChangeListener mListener; |
| private GlobalSettingsChangeListener mListenerForSubId; |
| |
| @VisibleForTesting |
| FragmentManager mFragmentManager; |
| |
| public RoamingPreferenceController(Context context, String key) { |
| super(context, key); |
| mCarrierConfigManager = context.getSystemService(CarrierConfigManager.class); |
| } |
| |
| @Override |
| public void onStart() { |
| if (mListener == null) { |
| mListener = new GlobalSettingsChangeListener(mContext, |
| Settings.Global.DATA_ROAMING) { |
| public void onChanged(String field) { |
| updateState(mSwitchPreference); |
| } |
| }; |
| } |
| stopMonitorSubIdSpecific(); |
| |
| if (mSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) { |
| return; |
| } |
| |
| mListenerForSubId = new GlobalSettingsChangeListener(mContext, |
| Settings.Global.DATA_ROAMING + mSubId) { |
| public void onChanged(String field) { |
| stopMonitor(); |
| updateState(mSwitchPreference); |
| } |
| }; |
| } |
| |
| @Override |
| public void onStop() { |
| stopMonitor(); |
| stopMonitorSubIdSpecific(); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mSwitchPreference = screen.findPreference(getPreferenceKey()); |
| } |
| |
| @Override |
| public int getAvailabilityStatus(int subId) { |
| return subId != SubscriptionManager.INVALID_SUBSCRIPTION_ID |
| ? AVAILABLE |
| : AVAILABLE_UNSEARCHABLE; |
| } |
| |
| @Override |
| public boolean setChecked(boolean isChecked) { |
| if (isDialogNeeded()) { |
| showDialog(); |
| } else { |
| // Update data directly if we don't need dialog |
| mTelephonyManager.setDataRoamingEnabled(isChecked); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| super.updateState(preference); |
| final RestrictedSwitchPreference switchPreference = (RestrictedSwitchPreference) preference; |
| if (!switchPreference.isDisabledByAdmin()) { |
| switchPreference.setEnabled(mSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID); |
| switchPreference.setChecked(isChecked()); |
| } |
| } |
| |
| @VisibleForTesting |
| boolean isDialogNeeded() { |
| final boolean isRoamingEnabled = mTelephonyManager.isDataRoamingEnabled(); |
| final PersistableBundle carrierConfig = mCarrierConfigManager.getConfigForSubId( |
| mSubId); |
| |
| // Need dialog if we need to turn on roaming and the roaming charge indication is allowed |
| if (!isRoamingEnabled && (carrierConfig == null || !carrierConfig.getBoolean( |
| CarrierConfigManager.KEY_DISABLE_CHARGE_INDICATION_BOOL))) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean isChecked() { |
| return mTelephonyManager.isDataRoamingEnabled(); |
| } |
| |
| public void init(FragmentManager fragmentManager, int subId) { |
| mFragmentManager = fragmentManager; |
| mSubId = subId; |
| mTelephonyManager = mContext.getSystemService(TelephonyManager.class); |
| if (mSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) { |
| return; |
| } |
| final TelephonyManager telephonyManager = mTelephonyManager |
| .createForSubscriptionId(mSubId); |
| if (telephonyManager == null) { |
| Log.w(TAG, "fail to init in sub" + mSubId); |
| mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| return; |
| } |
| mTelephonyManager = telephonyManager; |
| } |
| |
| private void showDialog() { |
| final RoamingDialogFragment dialogFragment = RoamingDialogFragment.newInstance(mSubId); |
| |
| dialogFragment.show(mFragmentManager, DIALOG_TAG); |
| } |
| |
| private void stopMonitor() { |
| if (mListener != null) { |
| mListener.close(); |
| mListener = null; |
| } |
| } |
| |
| private void stopMonitorSubIdSpecific() { |
| if (mListenerForSubId != null) { |
| mListenerForSubId.close(); |
| mListenerForSubId = null; |
| } |
| } |
| } |