| /* |
| * 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.car.settings.datetime; |
| |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.provider.Settings; |
| |
| import androidx.preference.Preference; |
| |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.PreferenceController; |
| import com.android.settingslib.datetime.ZoneGetter; |
| |
| import java.util.Calendar; |
| |
| /** |
| * Business logic for the preference that allows for changing the timezone. |
| */ |
| public class TimeZonePickerPreferenceController extends PreferenceController<Preference> { |
| |
| private final IntentFilter mIntentFilter; |
| private final BroadcastReceiver mTimeChangeReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| refreshUi(); |
| } |
| }; |
| |
| public TimeZonePickerPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| |
| // Listen to ACTION_TIME_CHANGED because it could be sent by the autoTimeZone toggle. |
| // Listen to ACTION_TIMEZONE_CHANGED because the change in timezone should update the |
| // description of the preference. |
| mIntentFilter = new IntentFilter(); |
| mIntentFilter.addAction(Intent.ACTION_TIME_CHANGED); |
| mIntentFilter.addAction(Intent.ACTION_TIMEZONE_CHANGED); |
| } |
| |
| @Override |
| protected Class<Preference> getPreferenceType() { |
| return Preference.class; |
| } |
| |
| /** Starts the broadcast receiver which listens for time changes */ |
| @Override |
| protected void onStartInternal() { |
| getContext().registerReceiver(mTimeChangeReceiver, mIntentFilter); |
| } |
| |
| /** Stops the broadcast receiver which listens for time changes */ |
| @Override |
| protected void onStopInternal() { |
| getContext().unregisterReceiver(mTimeChangeReceiver); |
| } |
| |
| @Override |
| protected void updateState(Preference preference) { |
| Calendar now = Calendar.getInstance(); |
| preference.setSummary(ZoneGetter.getTimeZoneOffsetAndName(getContext(), now.getTimeZone(), |
| now.getTime())); |
| preference.setEnabled(!autoTimezoneIsEnabled()); |
| } |
| |
| private boolean autoTimezoneIsEnabled() { |
| return Settings.Global.getInt(getContext().getContentResolver(), |
| Settings.Global.AUTO_TIME_ZONE, 0) > 0; |
| } |
| } |