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
15package com.android.systemui.util;
16
17import java.util.List;
18import java.util.function.Consumer;
19
20public 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