How to use

groupIndex

method

in

com.novoda.noplayer.model.PlayerSubtitleTrack

  private List<String> mapSubtitleTrackToLabel(List<PlayerSubtitleTrack> subtitleTracks) {
    List<String> labels = new ArrayList<>();
    labels.add("Dismiss subtitles");
    for (PlayerSubtitleTrack subtitleTrack : subtitleTracks) {
      labels.add("Group: " + subtitleTrack.groupIndex() + " Format: " + subtitleTrack.formatIndex());
    }
    return labels;
  }
}

public boolean selectTextTrack(PlayerSubtitleTrack subtitleTrack, RendererTypeRequester rendererTypeRequester) {
  TrackGroupArray trackGroups = trackSelector.trackGroups(TEXT, rendererTypeRequester);
  DefaultTrackSelector.SelectionOverride selectionOverride = new DefaultTrackSelector.SelectionOverride(
      subtitleTrack.groupIndex(),
      subtitleTrack.formatIndex()
  );
  return trackSelector.setSelectionOverride(TEXT, rendererTypeRequester, trackGroups, selectionOverride);
}