1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.util; 16 17 import java.util.List; 18 import java.util.function.Consumer; 19 20 public class Utils { 21 22 /** 23 * Allows lambda iteration over a list. It is done in reverse order so it is safe 24 * to add or remove items during the iteration. 25 */ 26 public static <T> void safeForeach(List<T> list, Consumer<T> c) { 27 for (int i = list.size() - 1; i >= 0; i--) { 28 c.accept(list.get(i)); 29 } 30 } 31 } 32
