| /* |
| * 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.telephony.cdma; |
| |
| import android.content.Context; |
| 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.TelephonyManager; |
| |
| import androidx.preference.Preference; |
| import androidx.preference.PreferenceManager; |
| import androidx.preference.PreferenceScreen; |
| |
| import com.android.settings.network.telephony.MobileNetworkUtils; |
| import com.android.settings.network.telephony.TelephonyBasePreferenceController; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| |
| /** |
| * Preference controller related to CDMA category |
| */ |
| public abstract class CdmaBasePreferenceController extends TelephonyBasePreferenceController |
| implements LifecycleObserver, OnStart, OnStop { |
| |
| protected Preference mPreference; |
| protected TelephonyManager mTelephonyManager; |
| protected PreferenceManager mPreferenceManager; |
| private DataContentObserver mDataContentObserver; |
| |
| public CdmaBasePreferenceController(Context context, String key) { |
| super(context, key); |
| mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| mDataContentObserver = new DataContentObserver(new Handler(Looper.getMainLooper())); |
| } |
| |
| @Override |
| public void onStart() { |
| mDataContentObserver.register(mContext, mSubId); |
| } |
| |
| @Override |
| public void onStop() { |
| mDataContentObserver.unRegister(mContext); |
| } |
| |
| @Override |
| public int getAvailabilityStatus(int subId) { |
| return MobileNetworkUtils.isCdmaOptions(mContext, subId) |
| ? AVAILABLE |
| : CONDITIONALLY_UNAVAILABLE; |
| } |
| |
| public void init(PreferenceManager preferenceManager, int subId) { |
| mPreferenceManager = preferenceManager; |
| mSubId = subId; |
| mTelephonyManager = mContext.getSystemService(TelephonyManager.class) |
| .createForSubscriptionId(mSubId); |
| } |
| |
| public void init(int subId) { |
| init(null, subId); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| super.displayPreference(screen); |
| mPreference = screen.findPreference(getPreferenceKey()); |
| if (mPreference instanceof CdmaListPreference) { |
| ((CdmaListPreference) mPreference).setSubId(mSubId); |
| } |
| } |
| |
| /** |
| * Listener that listens to mobile data state change. |
| */ |
| public class DataContentObserver extends ContentObserver { |
| |
| public DataContentObserver(Handler handler) { |
| super(handler); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| super.onChange(selfChange); |
| updateState(mPreference); |
| } |
| |
| public void register(Context context, int subId) { |
| final Uri uri = Settings.Global.getUriFor( |
| Settings.Global.PREFERRED_NETWORK_MODE + subId); |
| context.getContentResolver().registerContentObserver(uri, false, this); |
| } |
| |
| public void unRegister(Context context) { |
| context.getContentResolver().unregisterContentObserver(this); |
| } |
| } |
| } |