1 /* 2 * Copyright (C) 2013 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 package com.android.deskclock.worldclock; 17 18 import java.util.Comparator; 19 import java.util.TimeZone; 20 21 public class CityGmtOffsetComparator implements Comparator<CityObj> { 22 23 private CityNameComparator mNameComparator = null; 24 25 @Override 26 public int compare(CityObj c1, CityObj c2) { 27 long currentTime = System.currentTimeMillis(); 28 int offset = TimeZone.getTimeZone(c1.mTimeZone).getOffset(currentTime); 29 int offset2 = TimeZone.getTimeZone(c2.mTimeZone).getOffset(currentTime); 30 return (offset < offset2) ? -1 : (offset > offset2) ? 1 : 31 getCityNameComparator().compare(c1, c2); 32 } 33 34 private CityNameComparator getCityNameComparator() { 35 if (mNameComparator == null) { 36 mNameComparator = new CityNameComparator(); 37 } 38 return mNameComparator; 39 } 40 } 41
