CODEWITHSUNDEEP
androidkotlinandroid-recyclerviewandroid-view
wbk727
wbk727

Reputation: 8408

RecyclerView with Multiple View Type with continued position counting

Is there a way to use mutiple View types in a RecyclerView without any items getting replaced?

For position 0 and every 4th position in my RecyclerView, I want the 2nd View type to be shown without replacing what would've been in that position if the 1st View type was there. I.e. show the 2nd View type then the intended 1st View type afterwards.

override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
    when(holder) {
        is ViewHolderA -> {
            MobileAds.initialize(mCtx) {}
            mAdView = holder.itemView.findViewById(R.id.adView)
            val adRequest = AdRequest.Builder().build()
            mAdView.loadAd(adRequest)
        }

        is ViewHolderB -> {
        val product = my[holder.adapterPosition]

        holder.tvTitle.text = product.itemTitle
        }
    }
}

override fun getItemViewType(position: Int): Int {
    return if (position % 4 == 0) {
        typeA
    } else {
        typeB
    }
}

Expected result

enter image description here

Current result

enter image description here

enter image description here

Upvotes: 0

Views: 141

Answers (1)

Pawel
Pawel

Reputation: 17248

Modify you onBindViewHolder to bind items from position - position / 4 - 1 instead.

override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
    when(holder) {
        is ViewHolderA -> {
            MobileAds.initialize(mCtx) {}
            mAdView = holder.itemView.findViewById(R.id.adView)
            val adRequest = AdRequest.Builder().build()
            mAdView.loadAd(adRequest)
        }

        is ViewHolderB -> {
            val positionToBind = position - position / 4 - 1
            val product = my[positionToBind]
            holder.tvTitle.text = product.itemTitle
        }
    }
}

This will return

position 0: -1 (ad so it doesnt apply)
position 1: 0 (item A)
position 2: 1 (item B)
position 3: 2 (item C)
position 4: 2 (ad so it doesnt apply)
position 5: 3 (item D)
etc.

Upvotes: 1

Related Questions