1 /* 2 * Copyright (C) 2016 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.media.browse; 18 19 import android.os.Bundle; 20 21 /** 22 * @hide 23 */ 24 public class MediaBrowserUtils { 25 public static boolean areSameOptions(Bundle options1, Bundle options2) { 26 if (options1 == options2) { 27 return true; 28 } else if (options1 == null) { 29 return options2.getInt(MediaBrowser.EXTRA_PAGE, -1) == -1 30 && options2.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1) == -1; 31 } else if (options2 == null) { 32 return options1.getInt(MediaBrowser.EXTRA_PAGE, -1) == -1 33 && options1.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1) == -1; 34 } else { 35 return options1.getInt(MediaBrowser.EXTRA_PAGE, -1) 36 == options2.getInt(MediaBrowser.EXTRA_PAGE, -1) 37 && options1.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1) 38 == options2.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1); 39 } 40 } 41 42 public static boolean hasDuplicatedItems(Bundle options1, Bundle options2) { 43 int page1 = options1 == null ? -1 : options1.getInt(MediaBrowser.EXTRA_PAGE, -1); 44 int page2 = options2 == null ? -1 : options2.getInt(MediaBrowser.EXTRA_PAGE, -1); 45 int pageSize1 = options1 == null ? -1 : options1.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1); 46 int pageSize2 = options2 == null ? -1 : options2.getInt(MediaBrowser.EXTRA_PAGE_SIZE, -1); 47 48 int startIndex1, startIndex2, endIndex1, endIndex2; 49 if (page1 == -1 || pageSize1 == -1) { 50 startIndex1 = 0; 51 endIndex1 = Integer.MAX_VALUE; 52 } else { 53 startIndex1 = pageSize1 * page1; 54 endIndex1 = startIndex1 + pageSize1 - 1; 55 } 56 57 if (page2 == -1 || pageSize2 == -1) { 58 startIndex2 = 0; 59 endIndex2 = Integer.MAX_VALUE; 60 } else { 61 startIndex2 = pageSize2 * page2; 62 endIndex2 = startIndex2 + pageSize2 - 1; 63 } 64 65 if (startIndex1 <= startIndex2 && startIndex2 <= endIndex1) { 66 return true; 67 } else if (startIndex1 <= endIndex2 && endIndex2 <= endIndex1) { 68 return true; 69 } 70 return false; 71 } 72 } 73
