null pointer exception in song manager?

Question

I am trying this code for geting a playlist.

final String MEDIA_PATH=new String(MediaStore.Audio.Media.IS_MUSIC+\"!=0\");  
    //final String MEDIA_PATH=new Str         


        

Answer 1

Try this :

 String[] STAR = { "*" };
   int totalSongs;
 public void ListAllSongs() 
  {
    Uri allsongsuri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    String selection = MediaStore.Audio.Media.IS_MUSIC + " != 0";
    if (MusicUtils.isSdPresent()) {
        cursor = managedQuery(allsongsuri, STAR, selection, null, null);
        totalSongs = cursor.getCount();
        if (cursor != null) {
            if (cursor.moveToFirst()) {
                do {
                    String songname = cursor
                            .getString(cursor                                        .getColumnIndex(MediaStore.Audio.Media.DISPLAY_NAME));
                    int song_id = cursor.getInt(cursor
                            .getColumnIndex(MediaStore.Audio.Media._ID));
                    String fullpath = cursor.getString(cursor
                            .getColumnIndex(MediaStore.Audio.Media.DATA));
                    fullsongpath.add(fullpath);
                    String albumname = cursor.getString(cursor
                            .getColumnIndex(MediaStore.Audio.Media.ALBUM));
                    int album_id = cursor
                            .getInt(cursor
                                    .getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));
                    String artistname = cursor.getString(cursor
                            .getColumnIndex(MediaStore.Audio.Media.ARTIST));
                    int artist_id = cursor
                            .getInt(cursor
                                    .getColumnIndex(MediaStore.Audio.Media.ARTIST_ID));
                                            } while (cursor.moveToNext());
            }
            cursor.close();
        }
    }
 }

EDITED:

You check out the below links to show all video file stored in your sd card in a listview.

1) Link 1
2) Link 2
3) Link 3

I hope it will help you .

Thanks.