code: public void seekTo(int milli) {
          checkState();
          if (!mPlayerPlaylist.isEmpty()) {
              PlaybackService.seekTo(getContext(), mClientKey, milli);
          }
      }
docs: Seek to the precise track position.
  <p/>
  The current playing state of the SoundCloud player will be kept.
  <p/>
  If playing it remains playing, if paused it remains paused.
  
  @param milli time in milli of the position.