| /* |
| * 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.network; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.provider.Settings; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener; |
| |
| import com.android.internal.telephony.TelephonyIntents; |
| |
| /** Helper class for listening to changes in availability of telephony subscriptions */ |
| public class SubscriptionsChangeListener extends ContentObserver { |
| |
| public interface SubscriptionsChangeListenerClient { |
| void onAirplaneModeChanged(boolean airplaneModeEnabled); |
| void onSubscriptionsChanged(); |
| } |
| |
| private Context mContext; |
| private SubscriptionsChangeListenerClient mClient; |
| private SubscriptionManager mSubscriptionManager; |
| private OnSubscriptionsChangedListener mSubscriptionsChangedListener; |
| private Uri mAirplaneModeSettingUri; |
| private BroadcastReceiver mBroadcastReceiver; |
| |
| public SubscriptionsChangeListener(Context context, SubscriptionsChangeListenerClient client) { |
| super(new Handler(Looper.getMainLooper())); |
| mContext = context; |
| mClient = client; |
| mSubscriptionManager = mContext.getSystemService(SubscriptionManager.class); |
| mSubscriptionsChangedListener = new OnSubscriptionsChangedListener(Looper.getMainLooper()) { |
| @Override |
| public void onSubscriptionsChanged() { |
| subscriptionsChangedCallback(); |
| } |
| }; |
| mAirplaneModeSettingUri = Settings.Global.getUriFor(Settings.Global.AIRPLANE_MODE_ON); |
| mBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (!isInitialStickyBroadcast()) { |
| subscriptionsChangedCallback(); |
| } |
| } |
| }; |
| } |
| |
| public void start() { |
| mSubscriptionManager.addOnSubscriptionsChangedListener( |
| mContext.getMainExecutor(), mSubscriptionsChangedListener); |
| mContext.getContentResolver() |
| .registerContentObserver(mAirplaneModeSettingUri, false, this); |
| final IntentFilter radioTechnologyChangedFilter = new IntentFilter( |
| TelephonyIntents.ACTION_RADIO_TECHNOLOGY_CHANGED); |
| mContext.registerReceiver(mBroadcastReceiver, radioTechnologyChangedFilter); |
| } |
| |
| public void stop() { |
| mSubscriptionManager.removeOnSubscriptionsChangedListener(mSubscriptionsChangedListener); |
| mContext.getContentResolver().unregisterContentObserver(this); |
| mContext.unregisterReceiver(mBroadcastReceiver); |
| } |
| |
| public boolean isAirplaneModeOn() { |
| return Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.AIRPLANE_MODE_ON, 0) != 0; |
| } |
| |
| private void subscriptionsChangedCallback() { |
| mClient.onSubscriptionsChanged(); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| if (uri.equals(mAirplaneModeSettingUri)) { |
| mClient.onAirplaneModeChanged(isAirplaneModeOn()); |
| } |
| } |
| } |