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/*
* Copyright (C) 2016 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;
import static android.os.UserHandle.myUserId;
import static android.os.UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.UserManager;
import android.provider.Settings;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.telephony.TelephonyManager;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settingslib.RestrictedLockUtils;
import com.android.settingslib.RestrictedPreference;
import com.android.settingslib.Utils;
import com.android.settingslib.core.AbstractPreferenceController;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.core.lifecycle.events.OnStop;
public class MobileNetworkPreferenceController extends AbstractPreferenceController
implements PreferenceControllerMixin, LifecycleObserver, OnStart, OnStop {
private static final String KEY_MOBILE_NETWORK_SETTINGS = "mobile_network_settings";
private final boolean mIsSecondaryUser;
private final TelephonyManager mTelephonyManager;
private final UserManager mUserManager;
private Preference mPreference;
@VisibleForTesting
PhoneStateListener mPhoneStateListener;
private BroadcastReceiver mAirplanModeChangedReceiver;
public MobileNetworkPreferenceController(Context context) {
super(context);
mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
mIsSecondaryUser = !mUserManager.isAdminUser();
mAirplanModeChangedReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
updateState(mPreference);
}
};
}
@Override
public boolean isAvailable() {
return !isUserRestricted() && !Utils.isWifiOnly(mContext);
}
public boolean isUserRestricted() {
return mIsSecondaryUser ||
RestrictedLockUtils.hasBaseUserRestriction(
mContext,
DISALLOW_CONFIG_MOBILE_NETWORKS,
myUserId());
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreference = screen.findPreference(getPreferenceKey());
}
@Override
public String getPreferenceKey() {
return KEY_MOBILE_NETWORK_SETTINGS;
}
@Override
public void onStart() {
if (isAvailable()) {
if (mPhoneStateListener == null) {
mPhoneStateListener = new PhoneStateListener() {
@Override
public void onServiceStateChanged(ServiceState serviceState) {
updateState(mPreference);
}
};
}
mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_SERVICE_STATE);
}
if (mAirplanModeChangedReceiver != null) {
mContext.registerReceiver(mAirplanModeChangedReceiver,
new IntentFilter(Intent.ACTION_AIRPLANE_MODE_CHANGED));
}
}
@Override
public void onStop() {
if (mPhoneStateListener != null) {
mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
}
if (mAirplanModeChangedReceiver != null) {
mContext.unregisterReceiver(mAirplanModeChangedReceiver);
}
}
@Override
public void updateState(Preference preference) {
super.updateState(preference);
if (preference instanceof RestrictedPreference &&
((RestrictedPreference) preference).isDisabledByAdmin()) {
return;
}
preference.setEnabled(Settings.Global.getInt(
mContext.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON, 0) == 0);
}
@Override
public CharSequence getSummary() {
return mTelephonyManager.getNetworkOperatorName();
}
}
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