Enable vendors to add preference controllers in mobile network settings

/*

 * Copyright (C) 2023 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;

/**

 * {@link TelephonyBasePreferenceController} used to add vendor preference controllers in {@link

 * MobileNetworkSettings}.

 */

public abstract class AbstractSubscriptionPreferenceController

        extends TelephonyBasePreferenceController {

    public AbstractSubscriptionPreferenceController(Context context, String key) {

        super(context, key);

    }

    public void init(int subId) {

        mSubId = subId;

    }

}

        if (convertToEsimPreferenceController != null) {

            convertToEsimPreferenceController.init(mSubId, mSubscriptionInfoEntity);

        }

        List<AbstractSubscriptionPreferenceController> subscriptionPreferenceControllers =

                useAll(AbstractSubscriptionPreferenceController.class);

        for (AbstractSubscriptionPreferenceController controller :

                subscriptionPreferenceControllers) {

            controller.init(mSubId);

        }

    }

    @Override