Android paging Network + Database 7 snippet

.kt

private fun initAdapter() {
    rvCharacters.layoutManager = layoutManager
    rvCharacters.adapter = adapter
    rvCharacters.setHasFixedSize(true)

    viewModel.dataSource
        .observe(this, Observer {
            adapter.submitList(it)
        })

    viewModel.networkState
        .observe(this, Observer {
            Timber.d("Received a new NetworkState STATUS ---- ${it.status} Message  ----- ${it.msg}")
            adapter.setNetworkState(it)
        })

     layoutManager.spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
          override fun getSpanSize(position: Int): Int {
              return if ((position == adapter.itemCount - 1) && adapter.hasExtraRow()) 3 else 1
          }
      }


}