How to implement Banner Ad in RecyclerView Kotlin? The app closes when i try to start the activity where the banner ad is, and i receive the error "lateinit property mAdView has not been initialized" This is my Adapter class ComoSeJuegaAdapter (private val context: Context, private val dataset: List): RecyclerView.Adapter(){ class ComoSeJuegaViewHolder(val view: View): RecyclerView.ViewHolder(view) { val textView: TextView = view.findViewById(R.id.item_title_como_se_juega) val imageView: ImageView =...