How to get and set (change) ID3 tag (metadata) of audio files?

Question

I am working to change ID3 tags, the metadata in audio files, such as:

• Artist
• Title
• Album
• etc.

And the core point,

Answer 1

Actually, FasteKerinns's code is quite good. You should just change

new MyID3().write(src, dst, src_set, meta);

to

new MyID3().update(src, src_set, meta);

which means you don't need dst variable at all.

Additionaly, I have this piece of code which refreshes song that is modified in MediaStore:

 scanner=new MediaScannerConnection(getApplicationContext(),  
            new MediaScannerConnectionClient() {    

      public void onScanCompleted(String path, Uri uri) {
              scanner.disconnect(); 
      }

      public void onMediaScannerConnected() {
              scanner.scanFile(path, "audio/*");    
      }
  });

  scanner.connect();