Android get a built-in album Picture of music files

Code and comments are as follows:

Private Cursor GetCursor (string filePath) {string path = null;    
              Cursor C = getcontentresolver (). query (MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, NULL, NULL, NULL,    
      MediaStore.Audio.Media.DEFAULT_SORT_ORDER);    
      System.out.println (c.getstring) (C.getcolumnindex ("_data")); if (C.movetofirst ()) {do {//Gets the path through cursor, if the path is the same; System.out.printl  
              N ("////////" +filepath);   
             Path = C.getstring (c. Getcolumnindexorthrow (MediaStore.Audio.Media.DATA)); System.out.println ("?????????"  
              +path);    
                  Finding the same path returns, at which point Cursorposition is pointing to the cursor that the path can return to if (Path.equals (FilePath)) {    
                  System.out.println ("audiopath =" + path);    
                 System.out.println ("FilePath =" + FilePath);  
             Cursorposition = C.getposition ();  Break    
      } while (C.movetonext ()); //These two have no effect, when debugging using//String audiopath = c.getstring (c//. Getcolumnindexorthrow (Mediasto Re.    
      Audio.Media.DATA));    
      System.out.println ("audiopath =" + audiopath);    
  return C; private string Getalbumart (int album_id) {string murialbums = ' content://media/external/a    
          Udio/albums ";    
          string[] projection = new string[] {"Album_art"}; Cursor cur = this.getcontentresolver (). Query (Uri.parse (murialbums + "/" + integer.tostring (album_id    
         ), projection, NULL, NULL, NULL);    
          String album_art = null;    
              if (Cur.getcount () > 0 && cur.getcolumncount () > 0) {cur.movetonext ();    
          Album_art = cur.getstring (0);    
          } cur.close ();    
      cur = null;    return album_art;  
   private void GetImage () {Cursor currentcursor = getcursor ("/mnt/sdcard/" +mp3info); int album_id = Currentcursor.getint (currentcursor. Getcolumnindexorthrow (MediaStore.Audio.Media.ALBU   
      m_id));  
      String Albumart = Getalbumart (album_id);  
      Bitmap BM = NULL;    
      if (Albumart = = null) {Mimageview.setbackgroundresource (r.drawable.staring);    
          else {BM = Bitmapfactory.decodefile (Albumart);    
          Bitmapdrawable Bmpdraw = new bitmapdrawable (BM);    
      Mimageview.setimagedrawable (Bmpdraw); }   
     }