android import support.v4 androidx

import androidx.core.view.NestedScrollingParent;
import androidx.core.view.ViewCompat;
import androidx.recyclerview.widget.RecyclerView;
import androidx.viewpager.widget.ViewPager;

//import android.support.v4.view.NestedScrollingParent;
//import android.support.v4.view.ViewCompat;
//import android.support.v4.view.ViewPager;
//import android.support.v7.widget.RecyclerView;