/Kotlin/Recyclerview infinite scroll kotlin

Recyclerview infinite scroll kotlin

 recyclerview.addOnScrollListener(object : PaginationScrollListener(llm) {
            override fun isLastPage(): Boolean {
                return isLastPage
            }

            override fun isLoading(): Boolean {
                return isLoading
            }

            override fun loadMoreItems() {
                isLoading = true
                
                Load_More_Data()
            }
        })





abstract class PaginationScrollListener(val layoutManager: LinearLayoutManager) : RecyclerView.OnScrollListener() {

    override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
        super.onScrolled(recyclerView!!, dx, dy)

        val visibleItemCount = layoutManager.childCount
        val totalItemCount = layoutManager.itemCount
        val firstVisibleItemPosition = layoutManager.findFirstVisibleItemPosition()

        if (!isLoading() && !isLastPage()) {
            if (visibleItemCount + firstVisibleItemPosition >= totalItemCount && firstVisibleItemPosition >= 0) {
                loadMoreItems()
            }
        }
    }
    protected abstract fun isLoading(): Boolean
    protected abstract fun isLastPage(): Boolean
    protected abstract fun loadMoreItems()
}

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