Using Map fragment in Recycler view using fastadapter

CustomMapItem.kt

package com.example.fastadaptertest

import android.view.View
import com.google.android.gms.maps.GoogleMap
import com.mikepenz.fastadapter.FastAdapter
import com.mikepenz.fastadapter.items.AbstractItem

/**
 *
 * @author Rohyme
 */
class CustomMapItem: AbstractItem<CustomMapItem.CustomMapVH>() {
    var onItemReady : ((map :GoogleMap)->Unit)?=null


    override val layoutRes: Int
        get() = R.layout.activity_maps
    override val type: Int
        get() =R.id.fragment_map_view

    override fun getViewHolder(v: View): CustomMapVH {
        val customMap  = v.findViewById<CustomMapView>(R.id.map)
        customMap.onCreate(null)
        customMap.onMapReady=onItemReady
        return CustomMapVH(customMap)
    }


    inner  class CustomMapVH(val map :CustomMapView): FastAdapter.ViewHolder<CustomMapItem>(map) {
        override fun bindView(item: CustomMapItem, payloads: MutableList<Any>) {
            map.onResume()
        }

        override fun unbindView(item: CustomMapItem) {
            map.onStop()
        }
    }
}

CustomMapView.kt

package com.example.fastadaptertest

import android.content.Context
import android.util.AttributeSet
import android.view.MotionEvent
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.LifecycleObserver
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.OnLifecycleEvent
import com.google.android.gms.maps.GoogleMap
import com.google.android.gms.maps.MapView

/**
 *
 * @author Rohyme
 */
class CustomMapView : MapView, LifecycleObserver {

    var onMapReady: ((map: GoogleMap) -> Unit)? = null


    constructor(context: Context) : super(context) {
        initMap()
    }

    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {
        initMap()
    }

    private fun initMap() {
        if (context is LifecycleOwner) {
            (context as LifecycleOwner).lifecycle.addObserver(this)
        }
        getMapAsync {
            onMapReady?.invoke(it)
        }

    }

    override fun dispatchTouchEvent(ev: MotionEvent?): Boolean {
        when (ev?.action) {
            MotionEvent.ACTION_UP -> {
                this.parent.requestDisallowInterceptTouchEvent(false)
            }
            MotionEvent.ACTION_DOWN -> {
                this.parent.requestDisallowInterceptTouchEvent(true)
            }
        }
        return super.dispatchTouchEvent(ev)
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    fun mapOnDestroy() {
        this.onDestroy()
    }



}

MapsActivity.kt

package com.example.fastadaptertest

import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
import androidx.recyclerview.widget.LinearLayoutManager
import com.google.android.gms.maps.CameraUpdateFactory
import com.google.android.gms.maps.GoogleMap
import com.google.android.gms.maps.model.LatLng
import com.google.android.gms.maps.model.MarkerOptions
import com.mikepenz.fastadapter.FastAdapter
import com.mikepenz.fastadapter.IItem
import com.mikepenz.fastadapter.adapters.ItemAdapter
import kotlinx.android.synthetic.main.activity_main.*

/**
 *
 * @author Rohyme
 */
class MapsActivity : AppCompatActivity() {


    private val adapterItem by lazy { ItemAdapter<IItem<*>>() }
    private val fastAdapter by lazy { FastAdapter.with(adapterItem) }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        listView.apply {
            layoutManager = LinearLayoutManager(context)
            setHasFixedSize(false)
            isNestedScrollingEnabled = true
            adapter = fastAdapter
        }

        for (i in 1..20) {
            adapterItem.add(CustomMapItem().apply {
                onItemReady = {
                    onMapReady(it)
                }
            })
        }

    }

    private fun onMapReady(googleMap: GoogleMap) {
        // Add a marker in Sydney and move the camera
        val sydney = LatLng(-34.0, 151.0)
        googleMap.addMarker(MarkerOptions().position(sydney).title("Marker in Sydney"))
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(sydney))
    }
}