1 /* 2 * Copyright (C) 2014 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.server.notification; 17 18 import java.util.Comparator; 19 20 /** 21 * Sorts notifications individually into attention-relelvant order. 22 */ 23 public class NotificationComparator 24 implements Comparator<NotificationRecord> { 25 26 @Override 27 public int compare(NotificationRecord left, NotificationRecord right) { 28 final int leftPackagePriority = left.getPackagePriority(); 29 final int rightPackagePriority = right.getPackagePriority(); 30 if (leftPackagePriority != rightPackagePriority) { 31 // by priority, high to low 32 return -1 * Integer.compare(leftPackagePriority, rightPackagePriority); 33 } 34 35 final int leftScore = left.sbn.getScore(); 36 final int rightScore = right.sbn.getScore(); 37 if (leftScore != rightScore) { 38 // by priority, high to low 39 return -1 * Integer.compare(leftScore, rightScore); 40 } 41 42 final float leftPeople = left.getContactAffinity(); 43 final float rightPeople = right.getContactAffinity(); 44 if (leftPeople != rightPeople) { 45 // by contact proximity, close to far 46 return -1 * Float.compare(leftPeople, rightPeople); 47 } 48 49 // then break ties by time, most recent first 50 return -1 * Long.compare(left.getRankingTimeMs(), right.getRankingTimeMs()); 51 } 52 } 53
