1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.datetime; 18 19 import android.content.Context; 20 import android.support.annotation.VisibleForTesting; 21 import android.support.v7.preference.Preference; 22 23 import com.android.settings.core.PreferenceControllerMixin; 24 import com.android.settingslib.core.AbstractPreferenceController; 25 import com.android.settingslib.datetime.ZoneGetter; 26 27 import java.util.Calendar; 28 29 public class TimeZonePreferenceController extends AbstractPreferenceController 30 implements PreferenceControllerMixin { 31 32 private static final String KEY_TIMEZONE = "timezone"; 33 34 private final AutoTimeZonePreferenceController mAutoTimeZonePreferenceController; 35 36 public TimeZonePreferenceController(Context context, 37 AutoTimeZonePreferenceController autoTimeZonePreferenceController) { 38 super(context); 39 mAutoTimeZonePreferenceController = autoTimeZonePreferenceController; 40 } 41 42 @Override 43 public void updateState(Preference preference) { 44 preference.setSummary(getTimeZoneOffsetAndName()); 45 preference.setEnabled(!mAutoTimeZonePreferenceController.isEnabled()); 46 } 47 48 @Override 49 public boolean isAvailable() { 50 return true; 51 } 52 53 @Override 54 public String getPreferenceKey() { 55 return KEY_TIMEZONE; 56 } 57 58 @VisibleForTesting 59 CharSequence getTimeZoneOffsetAndName() { 60 final Calendar now = Calendar.getInstance(); 61 return ZoneGetter.getTimeZoneOffsetAndName(mContext, 62 now.getTimeZone(), now.getTime()); 63 } 64 } 65