PlaybackVideoFragment onViewCreated add ListRowPresenter

PlaybackVideoFragment.kt

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    if (savedInstanceState == null) {
        (adapter.presenterSelector as ClassPresenterSelector)
            .addClassPresenter(ListRow::class.java, ListRowPresenter())
        upNextAdapter = ArrayObjectAdapter(CardPresenter())
        val upNextRow = ListRow(1L, HeaderItem("Up Next"), upNextAdapter)
        (adapter as ArrayObjectAdapter).add(upNextRow)
    }
    ...
    ...
}