1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
* Copyright (C) 2012 Andrew Neal
* Copyright (C) 2014 The CyanogenMod Project
* Licensed under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law
* or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package com.cyanogenmod.eleven.loaders;
import android.content.Context;
import android.database.Cursor;
import android.provider.BaseColumns;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio.AudioColumns;
import com.cyanogenmod.eleven.model.Song;
import com.cyanogenmod.eleven.utils.Lists;
import com.cyanogenmod.eleven.utils.PreferenceUtils;
import java.util.ArrayList;
import java.util.List;
/**
* Used to query {@link MediaStore.Audio.Media.EXTERNAL_CONTENT_URI} and return
* the songs for a particular artist.
*
* @author Andrew Neal (andrewdneal@gmail.com)
*/
public class ArtistSongLoader extends WrappedAsyncTaskLoader<List<Song>> {
/**
* The result
*/
private final ArrayList<Song> mSongList = Lists.newArrayList();
/**
* The {@link Cursor} used to run the query.
*/
private Cursor mCursor;
/**
* The Id of the artist the songs belong to.
*/
private final Long mArtistID;
/**
* Constructor of <code>ArtistSongLoader</code>
*
* @param context The {@link Context} to use.
* @param artistId The Id of the artist the songs belong to.
*/
public ArtistSongLoader(final Context context, final Long artistId) {
super(context);
mArtistID = artistId;
}
/**
* {@inheritDoc}
*/
@Override
public List<Song> loadInBackground() {
// Create the Cursor
mCursor = makeArtistSongCursor(getContext(), mArtistID);
// Gather the data
if (mCursor != null && mCursor.moveToFirst()) {
do {
// Copy the song Id
final long id = mCursor.getLong(0);
// Copy the song name
final String songName = mCursor.getString(1);
// Copy the artist name
final String artist = mCursor.getString(2);
// Copy the album id
final long albumId = mCursor.getLong(3);
// Copy the album name
final String album = mCursor.getString(4);
// Copy the duration
final long duration = mCursor.getLong(5);
// Convert the duration into seconds
final int durationInSecs = (int) duration / 1000;
// Grab the Song Year
final int year = mCursor.getInt(6);
// Create a new song
final Song song = new Song(id, songName, artist, album, albumId, durationInSecs, year);
// Add everything up
mSongList.add(song);
} while (mCursor.moveToNext());
}
// Close the cursor
if (mCursor != null) {
mCursor.close();
mCursor = null;
}
return mSongList;
}
/**
* @param context The {@link Context} to use.
* @param artistId The Id of the artist the songs belong to.
* @return The {@link Cursor} used to run the query.
*/
public static final Cursor makeArtistSongCursor(final Context context, final Long artistId) {
// Match the songs up with the artist
final StringBuilder selection = new StringBuilder();
selection.append(AudioColumns.IS_MUSIC + "=1");
selection.append(" AND " + AudioColumns.TITLE + " != ''");
selection.append(" AND " + AudioColumns.ARTIST_ID + "=" + artistId);
return context.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
new String[] {
/* 0 */
BaseColumns._ID,
/* 1 */
AudioColumns.TITLE,
/* 2 */
AudioColumns.ARTIST,
/* 3 */
AudioColumns.ALBUM_ID,
/* 4 */
AudioColumns.ALBUM,
/* 5 */
AudioColumns.DURATION,
/* 6 */
AudioColumns.YEAR,
}, selection.toString(), null,
PreferenceUtils.getInstance(context).getArtistSongSortOrder());
}
}
|
