add some visual effects to pressing selected items counter at recycler views

        propMinSdkVersion = 21

        propTargetSdkVersion = propCompileSdkVersion

        propVersionCode = 1

        propVersionName = '5.4.3'

        propVersionName = '5.4.7'

        kotlin_version = '1.3.10'

    }

import android.view.View

import android.view.ViewGroup

import android.widget.TextView

import androidx.appcompat.app.ActionBar

import androidx.appcompat.view.ActionMode

import androidx.recyclerview.widget.DividerItemDecoration

import androidx.recyclerview.widget.RecyclerView

                isSelectable = true

                actMode = actionMode

                actBarTextView = layoutInflater.inflate(R.layout.actionbar_title, null) as TextView

                actBarTextView!!.layoutParams = ActionBar.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT)

                actMode!!.customView = actBarTextView

                actBarTextView!!.setOnClickListener {

                    if (getSelectableItemCount() == selectedKeys.size) {

    android:id="@+id/actionbar_title"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:background="?attr/selectableItemBackground"

    android:gravity="center_vertical|start"

    android:paddingRight="@dimen/activity_margin"

    android:textColor="@android:color/white"

    android:textSize="@dimen/actionbar_text_size"/>