MusicItem.java revision dbe6c87619d7543e819e55a7cfcb05dd0a9c7266 
1/*
2 * Copyright (C) 2015 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
17package com.example.android.leanback;
18
19import android.content.ContentResolver;
20import android.content.Context;
21import android.net.Uri;
22
23import com.google.gson.annotations.SerializedName;
24
25/**
26 * Abstract data type to represent music item.
27 */
28public class MusicItem {
29    // Duration information of current.
30    @SerializedName("duration")
31    private String mDuration;
32
33    // File name of this media item.
34    @SerializedName("file")
35    private String mFile;
36
37    // The title of this media item.
38    @SerializedName("title")
39    private String mMediaTitle;
40
41    // The description of media item.
42    @SerializedName("description")
43    private String mDescription;
44
45    // Art information (i.e. cover image) of this media item.
46    @SerializedName("art")
47    private String mArt;
48
49    /**
50     * The conversion function which can return media item's uri through the file name.
51     *
52     * @param context The context used to get resources of this app.
53     * @return The Uri of the selected media item.
54     */
55    public Uri getMediaSourceUri(Context context) {
56        return getResourceUri(context, context.getResources()
57                .getIdentifier(mFile, "raw", context.getPackageName()));
58    }
59
60    /**
61     * Return the title of current media item.
62     *
63     * @return The title of current media item.
64     */
65    public String getMediaTitle() {
66        return mMediaTitle;
67    }
68
69    /**
70     * Return the description of current media item.
71     *
72     * @return The description of current media item.
73     */
74    public String getMediaDescription() {
75        return mDescription;
76    }
77
78    /**
79     * Return the resource id through art file's name.
80     *
81     * @param context The context used to get resources of this app.
82     * @return The resource Id of the selected media item.
83     */
84    public int getMediaAlbumArtResId(Context context) {
85        return context.getResources()
86                .getIdentifier(mArt, "drawable", context.getPackageName());
87    }
88
89    /**
90     * Helper function to get resource uri based on android resource scheme
91     *
92     * @param context Context to get resources.
93     * @param resID   Resource ID.
94     * @return The Uri of current resource.
95     */
96    public static Uri getResourceUri(Context context, int resID) {
97        return Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE
98                + "://"
99                + context.getResources().getResourcePackageName(resID)
100                + '/'
101                + context.getResources().getResourceTypeName(resID)
102                + '/'
103                + context.getResources().getResourceEntryName(resID));
104    }
105}
106