1 /* 2 * Copyright (C) 2024 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 android.util; 18 19 import android.annotation.Nullable; 20 21 /** 22 * Copied over from frameworks/base/core/java/com/android/internal/util/ArrayUtils.java 23 * 24 * @hide 25 */ 26 public class ArrayUtils { ArrayUtils()27 private ArrayUtils() { /* cannot be instantiated */ } 28 29 /** 30 * Checks if given array is null or has zero elements. 31 */ isEmpty(@ullable int[] array)32 public static boolean isEmpty(@Nullable int[] array) { 33 return array == null || array.length == 0; 34 } 35 36 /** 37 * True if the byte array is null or has length 0. 38 */ isEmpty(@ullable byte[] array)39 public static boolean isEmpty(@Nullable byte[] array) { 40 return array == null || array.length == 0; 41 } 42 } 43