1 /* 2 * Copyright (C) 2009 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 com.android.camera.gallery; 18 19 // 20 // ImageList and Image classes have one-to-one correspondence. 21 // The class hierarchy (* = abstract class): 22 // 23 // IImageList 24 // - BaseImageList (*) 25 // - VideoList 26 // - ImageList 27 // - DrmImageList 28 // - SingleImageList (contains UriImage) 29 // - ImageListUber 30 // 31 // IImage 32 // - BaseImage (*) 33 // - VideoObject 34 // - Image 35 // - DrmImage 36 // - UriImage 37 // 38 39 /** 40 * The interface of all image collections used in gallery. 41 */ 42 public interface IImageList { 43 44 /** 45 * Returns the count of image objects. 46 * 47 * @return the number of images 48 */ 49 public int getCount(); 50 51 /** 52 * Returns the image at the ith position. 53 * 54 * @param i the position 55 * @return the image at the ith position 56 */ 57 public IImage getImageAt(int i); 58 59 /** 60 * Closes this list to release resources, no further operation is allowed. 61 */ 62 public void close(); 63 } 64
