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/*
* 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.security;
import android.content.Context;
import android.os.PersistableBundle;
import android.os.UserManager;
import android.support.v7.preference.Preference;
import android.support.v7.preference.PreferenceScreen;
import android.telephony.CarrierConfigManager;
import android.telephony.SubscriptionInfo;
import android.telephony.SubscriptionManager;
import android.telephony.TelephonyManager;
import com.android.settings.core.BasePreferenceController;
import java.util.List;
public class SimLockPreferenceController extends BasePreferenceController {
private static final String KEY_SIM_LOCK = "sim_lock_settings";
private final CarrierConfigManager mCarrierConfigManager;
private final UserManager mUserManager;
private final SubscriptionManager mSubscriptionManager;
private final TelephonyManager mTelephonyManager;
public SimLockPreferenceController(Context context) {
super(context, KEY_SIM_LOCK);
mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
mCarrierConfigManager = (CarrierConfigManager)
mContext.getSystemService(Context.CARRIER_CONFIG_SERVICE);
mSubscriptionManager = (SubscriptionManager) context
.getSystemService(Context.TELEPHONY_SUBSCRIPTION_SERVICE);
mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
}
@Override
public int getAvailabilityStatus() {
final PersistableBundle b = mCarrierConfigManager.getConfig();
final boolean IsAdmin = mUserManager.isAdminUser();
if (!IsAdmin || !isSimIccReady() ||
b.getBoolean(CarrierConfigManager.KEY_HIDE_SIM_LOCK_SETTINGS_BOOL)) {
return DISABLED_FOR_USER;
}
return AVAILABLE;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
final Preference preference = screen.findPreference(getPreferenceKey());
if (preference == null) {
return;
}
// Disable SIM lock if there is no ready SIM card.
preference.setEnabled(isSimReady());
}
/* Return true if a SIM is ready for locking.
* TODO: consider adding to TelephonyManager or SubscritpionManasger.
*/
private boolean isSimReady() {
final List<SubscriptionInfo> subInfoList =
mSubscriptionManager.getActiveSubscriptionInfoList();
if (subInfoList != null) {
for (SubscriptionInfo subInfo : subInfoList) {
final int simState = mTelephonyManager.getSimState(subInfo.getSimSlotIndex());
if ((simState != TelephonyManager.SIM_STATE_ABSENT) &&
(simState != TelephonyManager.SIM_STATE_UNKNOWN)) {
return true;
}
}
}
return false;
}
/**
* Return true if a there is a Slot that has Icc
*/
private boolean isSimIccReady() {
final List<SubscriptionInfo> subInfoList =
mSubscriptionManager.getActiveSubscriptionInfoList();
if (subInfoList != null) {
for (SubscriptionInfo subInfo : subInfoList) {
if (mTelephonyManager.hasIccCard(subInfo.getSimSlotIndex())) {
return true;
}
}
}
return false;
}
}
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