120 lines
4.9 KiB
Java
120 lines
4.9 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.network.telephony;
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import android.app.settings.SettingsEnums;
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import android.content.Context;
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import android.os.PersistableBundle;
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import android.telephony.CarrierConfigManager;
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import android.telephony.SubscriptionManager;
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import android.telephony.TelephonyManager;
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import android.util.Log;
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import com.android.settings.overlay.FeatureFactory;
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import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
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/**
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* Preference controller for "Enable 2G"
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*/
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public class Enable2gPreferenceController extends TelephonyTogglePreferenceController {
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private static final String LOG_TAG = "Enable2gPreferenceController";
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private static final long BITMASK_2G = TelephonyManager.NETWORK_TYPE_BITMASK_GSM
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| TelephonyManager.NETWORK_TYPE_BITMASK_GPRS
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| TelephonyManager.NETWORK_TYPE_BITMASK_EDGE
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| TelephonyManager.NETWORK_TYPE_BITMASK_CDMA
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| TelephonyManager.NETWORK_TYPE_BITMASK_1xRTT;
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private final MetricsFeatureProvider mMetricsFeatureProvider;
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private CarrierConfigManager mCarrierConfigManager;
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private TelephonyManager mTelephonyManager;
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/**
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* Class constructor of "Enable 2G" toggle.
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*
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* @param context of settings
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* @param key assigned within UI entry of XML file
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*/
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public Enable2gPreferenceController(Context context, String key) {
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super(context, key);
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mCarrierConfigManager = context.getSystemService(CarrierConfigManager.class);
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mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
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}
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/**
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* Initialization based on a given subscription id.
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*
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* @param subId is the subscription id
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* @return this instance after initialization
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*/
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public Enable2gPreferenceController init(int subId) {
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mSubId = subId;
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mTelephonyManager = mContext.getSystemService(TelephonyManager.class)
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.createForSubscriptionId(mSubId);
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return this;
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}
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@Override
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public int getAvailabilityStatus(int subId) {
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final PersistableBundle carrierConfig = mCarrierConfigManager.getConfigForSubId(subId);
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if (mTelephonyManager == null) {
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Log.w(LOG_TAG, "Telephony manager not yet initialized");
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mTelephonyManager = mContext.getSystemService(TelephonyManager.class);
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}
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boolean visible =
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SubscriptionManager.isUsableSubscriptionId(subId)
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&& carrierConfig != null
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&& !carrierConfig.getBoolean(CarrierConfigManager.KEY_HIDE_ENABLE_2G)
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&& mTelephonyManager.isRadioInterfaceCapabilitySupported(
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mTelephonyManager.CAPABILITY_USES_ALLOWED_NETWORK_TYPES_BITMASK);
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return visible ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
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}
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@Override
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public boolean isChecked() {
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long currentlyAllowedNetworkTypes = mTelephonyManager.getAllowedNetworkTypesForReason(
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mTelephonyManager.ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G);
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return (currentlyAllowedNetworkTypes & BITMASK_2G) != 0;
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}
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@Override
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public boolean setChecked(boolean isChecked) {
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if (!SubscriptionManager.isUsableSubscriptionId(mSubId)) {
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return false;
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}
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long currentlyAllowedNetworkTypes = mTelephonyManager.getAllowedNetworkTypesForReason(
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mTelephonyManager.ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G);
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boolean enabled = (currentlyAllowedNetworkTypes & BITMASK_2G) != 0;
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if (enabled == isChecked) {
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return false;
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}
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long newAllowedNetworkTypes = currentlyAllowedNetworkTypes;
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if (isChecked) {
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newAllowedNetworkTypes = currentlyAllowedNetworkTypes | BITMASK_2G;
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Log.i(LOG_TAG, "Enabling 2g. Allowed network types: " + newAllowedNetworkTypes);
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} else {
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newAllowedNetworkTypes = currentlyAllowedNetworkTypes & ~BITMASK_2G;
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Log.i(LOG_TAG, "Disabling 2g. Allowed network types: " + newAllowedNetworkTypes);
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}
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mTelephonyManager.setAllowedNetworkTypesForReason(
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mTelephonyManager.ALLOWED_NETWORK_TYPES_REASON_ENABLE_2G, newAllowedNetworkTypes);
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mMetricsFeatureProvider.action(
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mContext, SettingsEnums.ACTION_2G_ENABLED, isChecked);
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return true;
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}
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}
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