Files
app_Settings/src/com/android/settings/network/telephony/TelephonyTogglePreferenceController.java
Bonian Chen 2de00e766d [Settings] NullPointerException when disable eSIM/Fi
When disabling eSIM/Fi, CarrierConfig retrieved on that subscription
becomes null and need to perform null pointer checking when accessing
it.

Bug: 149484288
Test: manual
Change-Id: If8a206788407a65c2cb9e5bafe3bc89b93cf63fe
2020-03-01 01:15:06 +00:00

59 lines
2.1 KiB
Java

/*
* 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.TogglePreferenceController;
/**
* {@link TogglePreferenceController} that used by all preferences that requires subscription id.
*/
public abstract class TelephonyTogglePreferenceController extends TogglePreferenceController
implements TelephonyAvailabilityCallback {
protected int mSubId;
public TelephonyTogglePreferenceController(Context context, String preferenceKey) {
super(context, preferenceKey);
mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
}
@Override
public int getAvailabilityStatus() {
return MobileNetworkUtils.getAvailability(mContext, mSubId, this::getAvailabilityStatus);
}
/**
* 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);
}
}