在Android上添加封面藝術到已下載的mp3

Question

如何以編程方式將封面藝術（專輯封面）添加到已下載的mp3中？

我讓我的應用程序通過下載管理器從Android APIS下載的MP3文件，如下圖所示：

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); 
} 

是否有可能一個封面藝術添加到下載的MP3文件，使MP3播放器上手機會在播放歌曲時顯示圖像？

Answer 1

下載此jar文件MyID3_for_android並將其添加到項目的構建路徑。這裏是你如何通過改變蓋

 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); 

你還會在Jakarta Regex jar

READFILE需要一個示例代碼只是一個函數來獲取的byte []從文件

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(); 
    } 
} 

明白了從stackoverflow，不知道從誰:)