英文:
load cover audio art in android
问题
我想在Android中加载封面音频艺术以显示设备上的音频列表。为此,我使用了以下链接:
如下图所示:
以及我的加载音频文件代码:
private void loadAudio() {
ContentResolver contentResolver = getContentResolver();
Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Audio.Media.IS_MUSIC + "!= 0";
String sortOrder = MediaStore.Audio.Media.TITLE + " ASC";
Cursor cursor = contentResolver.query(uri, null, selection, null, sortOrder);
if (cursor != null && cursor.getCount() > 0) {
audioList.clear();
while (cursor.moveToNext()) {
String data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
String album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
int albumId = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));
Cursor cursor1 = contentResolver.query(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
new String[]{MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM_ART},
MediaStore.Audio.Albums._ID + "=" + albumId, null, null);
Bitmap bitmap = null;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
try {
bitmap = contentResolver.loadThumbnail(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, new Size(30, 30), null);
} catch (IOException e) {
e.printStackTrace();
}
}
String albumArt = "";
if (cursor1 != null && cursor1.getCount() > 0)
while (cursor1.moveToNext()) {
albumArt = cursor.getString(cursor1.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
}
// 保存到audioList
audioList.add(new Audio(data, title, album, artist, albumArt, bitmap));
}
}
cursor.close();
setAdapter();
}
以及关于RecyclerView的MyAdapter:
@Override
public void onBindViewHolder(@NonNull MainHolder holder, int position) {
Audio audio = arrayList.get(position);
holder.txtTitle.setText("标题:" + audio.getTitle());
holder.txtAlbum.setText("专辑:" + audio.getAlbum());
holder.txtArtist.setText("艺术家:" + audio.getArtist());
File imgFile = new File(audio.getAlbumArt());
Picasso.get().load(imgFile.getAbsolutePath()).into(holder.img);
if (imgFile.exists()) {
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
holder.img.setImageBitmap(myBitmap);
}
}
请帮助我。
英文:
I want to load cover audio art in android for show list of audio from device. For this purpose i used this following Link:
Like following picture:
And my code for Load audio files:
private void loadAudio() {
ContentResolver contentResolver = getContentResolver();
Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Audio.Media.IS_MUSIC + "!= 0";
String sortOrder = MediaStore.Audio.Media.TITLE + " ASC";
Cursor cursor = contentResolver.query(uri, null, selection, null, sortOrder);
if (cursor != null && cursor.getCount() > 0) {
audioList.clear();
while (cursor.moveToNext()) {
String data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
String album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
int albumId = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));
Cursor cursor1 = contentResolver.query(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
new String[]{MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM_ART},
MediaStore.Audio.Albums._ID + "=" + albumId, null, null);
Bitmap bitmap = null;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
try {
bitmap = contentResolver.loadThumbnail(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, new Size(30, 30), null);
} catch (IOException e) {
e.printStackTrace();
}
}
String albumArt = "";
if (cursor1 != null && cursor1.getCount() > 0)
while (cursor1.moveToNext()) {
albumArt = cursor.getString(cursor1.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
}
// Save to audioList
audioList.add(new Audio(data, title, album, artist, albumArt, bitmap));
}
}
cursor.close();
setAdapter();
}
And in MyAdapter about recyclerview:
@Override
public void onBindViewHolder(@NonNull MainHolder holder, int position) {
Audio audio = arrayList.get(position);
holder.txtTitle.setText("Title: " + audio.getTitle());
holder.txtAlbum.setText("Album: " + audio.getAlbum());
holder.txtArtist.setText("Artist: " + audio.getArtist());
File imgFile = new File(audio.getAlbumArt());
Picasso.get().load(imgFile.getAbsolutePath()).into(holder.img);
if (imgFile.exists()) {
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
holder.img.setImageBitmap(myBitmap);
}
}
Help me please.
答案1
得分: 1
已解决:
- 加载音频文件:
private void loadAudio() {
ContentResolver contentResolver = getContentResolver();
Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Audio.Media.IS_MUSIC + "!= 0";
String sortOrder = MediaStore.Audio.Media.ARTIST + " DESC";
Cursor cursor = contentResolver.query(uri, null, selection, null, sortOrder);
if (cursor != null && cursor.getCount() > 0) {
audioList.clear();
while (cursor.moveToNext()) {
Audio audio = new Audio();
String data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
String album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
int albumId = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));
Bitmap thumbnail = null;
String albumArt = null;
Uri imageUri_t;
Cursor cursor1 = contentResolver.query(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
new String[]{MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM_ART},
MediaStore.Audio.Albums._ID + "=" + albumId, null, null);
while (cursor1.moveToNext()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
Size thumbSize = new Size(100, 100);
try {
int thumbColumn = cursor1.getColumnIndexOrThrow(MediaStore.Audio.Albums._ID);
int _thumpId = cursor1.getInt(thumbColumn);
imageUri_t = ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, _thumpId);
thumbnail = getContentResolver().loadThumbnail(imageUri_t, thumbSize, null);
} catch (IOException e) {
e.printStackTrace();
}
} else {
albumArt = cursor1.getString(cursor1.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
}
}
audio.setData(data);
audio.setTitle(title);
audio.setAlbum(album);
audio.setArtist(artist);
audio.setAlbumId(albumId);
audio.setAlbumArt(albumArt);
audio.setThumbnail(thumbnail);
audioList.add(audio);
}
}
cursor.close();
setAdapter();
}
- 还有 MyAdapter 的一部分:
@Override
public void onBindViewHolder(@NonNull MainHolder holder, int position) {
Audio audio = arrayList.get(position);
holder.txtTitle.setText("Title: " + audio.getTitle());
holder.txtAlbum.setText("Album: " + audio.getAlbum());
holder.txtArtist.setText("Artist: " + audio.getArtist());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
if (audio.getThumbnail() != null)
holder.img.setImageBitmap(audio.getThumbnail());
} else {
if (audio.getAlbumArt() != null) {
File imgFile = new File(audio.getAlbumArt());
if (imgFile.exists()) {
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
holder.img.setImageBitmap(myBitmap);
}
}
}
}
首次查询 MediaStore.Audio.Media.ARTIST 以获取来自 MediaStore 的音频信息。
在 Android 10(Q)及以下版本中,获取音频文件的缩略图存在差异。
因此,针对低于 Android 10 的查询如下所示:
String albumArt = cursor1.getString(cursor1.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
您可以从 MediaStore.Audio.Albums 中的 ALBUM_ART 列中获取专辑封面。
然后,对于 Android 10,请按照以下方式进行查询:
在 MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI 上查询,其中 albumId 等于 MediaStore.Audio.Albums 中的 _ID 列。
然后通过图像 URI 从 Content Resolver 中加载缩略图...
希望这对您有用
英文:
Solved:
- Load audio file:
private void loadAudio() {
ContentResolver contentResolver = getContentResolver();
Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
String selection = MediaStore.Audio.Media.IS_MUSIC + "!= 0";
String sortOrder = MediaStore.Audio.Media.ARTIST + " DESC";
Cursor cursor = contentResolver.query(uri, null, selection, null, sortOrder);
if (cursor != null && cursor.getCount() > 0) {
audioList.clear();
while (cursor.moveToNext()) {
Audio audio = new Audio();
String data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
String title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
String album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
String artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));
int albumId = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));
Bitmap thumbnail = null;
String albumArt = null;
Uri imageUri_t;
Cursor cursor1 = contentResolver.query(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
new String[]{MediaStore.Audio.Albums._ID, MediaStore.Audio.Albums.ALBUM_ART},
MediaStore.Audio.Albums._ID + "=" + albumId, null, null);
while (cursor1.moveToNext()) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
Size thumbSize = new Size(100, 100);
try {
int thumbColumn = cursor1.getColumnIndexOrThrow(MediaStore.Audio.Albums._ID);
int _thumpId = cursor1.getInt(thumbColumn);
imageUri_t = ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, _thumpId);
thumbnail = getContentResolver().loadThumbnail(imageUri_t, thumbSize, null);
} catch (IOException e) {
e.printStackTrace();
}
} else {
albumArt = cursor1.getString(cursor1.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
}
}
audio.setData(data);
audio.setTitle(title);
audio.setAlbum(album);
audio.setArtist(artist);
audio.setAlbumId(albumId);
audio.setAlbumArt(albumArt);
audio.setThumbnail(thumbnail);
audioList.add(audio);
}
}
cursor.close();
setAdapter();
}
- And a part of MyAdapter:
@Override
public void onBindViewHolder(@NonNull MainHolder holder, int position) {
Audio audio = arrayList.get(position);
holder.txtTitle.setText("Title: " + audio.getTitle());
holder.txtAlbum.setText("Album: " + audio.getAlbum());
holder.txtArtist.setText("Artist: " + audio.getArtist());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
if (audio.getThumbnail() != null)
holder.img.setImageBitmap(audio.getThumbnail());
} else {
if (audio.getAlbumArt() != null) {
File imgFile = new File(audio.getAlbumArt());
if (imgFile.exists()) {
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
holder.img.setImageBitmap(myBitmap);
}
}
}
}
First query on MediaStore.Audio.Media.ARTIST about fetch audio info from MediaStore.
There is a difference About fetch thumbnail of Audio file in android 10 (Q) and below.
So query for lower than Android 10 is like follow:
String albumArt = cursor1.getString(cursor1.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART));
You can get album art from ALBUM_ART column in MediaStore.Audio.Albums.
Then for Android 10 like follow this:
Query on MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI where albumId equals _ID column from MediaStore.Audio.Albums.
And load thumbnail from Content Resolver by image uri...
I hope it is useful
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