如何以编程方式将封面图片(专辑封面)添加到下载的mp3中?
我让我的应用程序从Android APIS通过DownloadManager下载mp3文件,如下所示:
private void startDownload(){
Uri uri = Uri.parse(BASE_URL+DOWNLOAD+mp3+".mp3");
filename = title+".mp3";
Request request = new DownloadManager.Request(uri)
.setDestinationInExternalPublicDir(MUSIC_PATH, filename);
DOWNLOAD_MANAGER.enqueue(request);
}
是否可以在下载的mp3文件中添加一个coverart,以便手机上的mp3播放器在播放歌曲时会显示图像?
答案 0 :(得分:9)
下载此jar文件MyID3_for_android并将其添加到项目的构建路径中。这是一个如何更改封面的示例代码
File src = new File("filepath");
MusicMetadataSet src_set = new MyID3().read(src);
File img = (new File("imagePath"));
Vector<ImageData> fileList = new Vector<ImageData>();
ImageData data = new ImageData(readFile(img), "", "", 3);
fileList.add(data);
MusicMetadata metadata = (MusicMetadata) src_set.getSimplified();
metadata.setPictureList(fileList);
File dst = new File("destinationPath");
new MyID3().write(src, dst, src_set, metadata);
readFile只是从File
获取byte []的函数public static byte[] readFile (File file) throws IOException {
// Open file
RandomAccessFile f = new RandomAccessFile(file, "r");
try {
// Get and check length
long longlength = f.length();
int length = (int) longlength;
if (length != longlength) throw new IOException("File size >= 2 GB");
// Read file and return data
byte[] data = new byte[length];
f.readFully(data);
return data;
}
finally {
f.close();
}
}
从stackOverflow得到它,不知道是谁:)