| /* |
| * Copyright (C) 2019 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.telephony.CarrierConfigManager; |
| import android.telephony.SubscriptionManager; |
| |
| import com.android.settings.core.BasePreferenceController; |
| |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * {@link BasePreferenceController} that used by all preferences that requires subscription id. |
| */ |
| public abstract class TelephonyBasePreferenceController extends BasePreferenceController |
| implements TelephonyAvailabilityCallback, TelephonyAvailabilityHandler { |
| protected int mSubId; |
| private AtomicInteger mAvailabilityStatus = new AtomicInteger(0); |
| private AtomicInteger mSetSessionCount = new AtomicInteger(0); |
| |
| public TelephonyBasePreferenceController(Context context, String preferenceKey) { |
| super(context, preferenceKey); |
| mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| } |
| |
| @Override |
| public int getAvailabilityStatus() { |
| if (mSetSessionCount.get() <= 0) { |
| mAvailabilityStatus.set(MobileNetworkUtils |
| .getAvailability(mContext, mSubId, this::getAvailabilityStatus)); |
| } |
| return mAvailabilityStatus.get(); |
| } |
| |
| @Override |
| public void setAvailabilityStatus(int status) { |
| mAvailabilityStatus.set(status); |
| mSetSessionCount.getAndIncrement(); |
| } |
| |
| @Override |
| public void unsetAvailabilityStatus() { |
| mSetSessionCount.getAndDecrement(); |
| } |
| |
| /** |
| * Get carrier config based on specific subscription id. |
| * |
| * @param subId is the subscription id |
| * @return {@link PersistableBundle} of carrier config, or {@code null} when carrier config |
| * is not available. |
| */ |
| public PersistableBundle getCarrierConfigForSubId(int subId) { |
| if (!SubscriptionManager.isValidSubscriptionId(subId)) { |
| return null; |
| } |
| final CarrierConfigManager carrierConfigMgr = |
| mContext.getSystemService(CarrierConfigManager.class); |
| return carrierConfigMgr.getConfigForSubId(subId); |
| } |
| } |