commonActivity.kt

binding.recyclerView.addOnScrollListener(object : RecyclerView.OnScrollListener() {
    override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
        super.onScrolled(recyclerView, dx, dy)
        if (dy > 0 &&
            layoutManager.findLastVisibleItemPosition() >
            viewModel.uiModelsValue.size - INTERVAL_LOAD_MORE
        ) {
            viewModel.loadMoreUiModels()
        }
    }
})

viewModel.uiModels.observe(this) {
    // 각각 다른 방식으로 처리
}