How to add Subtitles(.SRT files) to video in Exoplayer android?

Question

i am working on a project where i should play .srt files along with video in android. I was working through the samples of Exoplayer but cant able to play .srt files with vi

Answer 1

 PopupMenu popup = new PopupMenu(getContext(), v);
                popup.getMenuInflater().inflate(R.menu.subtile_menu, popup.getMenu());
                popup.setOnMenuItemClickListener(item -> {
                    if (item.getItemId()==R.id.remove_subtitle){
                        //player.prepare(videoSource);
                        player.prepare(videoSource, false, false);
                    }else if (item.getItemId()==R.id.english){
                        if (caption){
                            Format textFormat = Format.createTextSampleFormat(null, MimeTypes.APPLICATION_SUBRIP,
                                    null, Format.NO_VALUE, Format.NO_VALUE, "en", null, Format.OFFSET_SAMPLE_RELATIVE);
                            MediaSource textMediaSource = new SingleSampleMediaSource.Factory(dataSourceFactory)
                                    .createMediaSource(Uri.parse(sub_url), textFormat, C.TIME_UNSET);
                            MergingMediaSource mediaSource = new MergingMediaSource(videoSource, textMediaSource);
                            player.prepare(mediaSource, false, false);
                        }else {
                            Toast.makeText(getContext(), "Subtitle not available", Toast.LENGTH_SHORT).show();
                        }
                    }
                    return true;
                });
                popup.show();