SmartNestedScrollView.kt

package com.danaimset.widget

import android.content.Context
import android.support.v4.widget.NestedScrollView
import android.support.v7.widget.RecyclerView
import android.util.AttributeSet
import android.view.View
import android.view.ViewGroup

open class SmartNestedScrollView(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : NestedScrollView(context, attrs, defStyleAttr) {

    constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0)

    constructor(context: Context) : this(context, null)

    override fun measureChildWithMargins(child: View?, parentWidthMeasureSpec: Int, widthUsed: Int, parentHeightMeasureSpec: Int, heightUsed: Int) {
        if (findNestedRecyclerView(child) != null) {
            val lp = child?.layoutParams as ViewGroup.MarginLayoutParams
            val childHeightMeasureSpec = View.MeasureSpec.makeMeasureSpec(
                    lp.topMargin + lp.bottomMargin, View.MeasureSpec.AT_MOST)
            child.measure(parentWidthMeasureSpec, childHeightMeasureSpec)
        } else {
            super.measureChildWithMargins(child, parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed)
        }
    }

    private fun findNestedRecyclerView(view: View?): RecyclerView? {
        when (view) {
            is RecyclerView -> return view
            is ViewGroup -> {
                var index = 0
                do {
                    val child = view.getChildAt(index)
                    val recyclerView = findNestedRecyclerView(child)
                    if (recyclerView == null) {
                        index += 1
                    } else {
                        return recyclerView
                    }
                } while (index < view.childCount)
            }
            else -> return null
        }
        return null
    }
}

Hey there!
Make sure that RecyclerView is keeping it's height as wrap_content and don't constraint it to the bottom of the parent container.
If you need more details, please let me know and I'll share my latest layout with the same issue (Scrollable RecyclerView only)

Cool one. works fine.

<com.awantunai.app.custom.SmartNestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="@id/layoutSkuCategory"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
>

<com.awantunai.app.component.HorizontalSkuList
android:id="@+id/horizontalSkuList"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="@id/layoutSkuCategory"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
/>
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rvSku"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/at_medium"
android:orientation="vertical"
android:scrollbars="none"
android:nestedScrollingEnabled="true"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/horizontalSkuList"
tools:listitem="@layout/item_cart_layout" />

</com.awantunai.app.custom.SmartNestedScrollView>

This is my layout, I still face the same problem of infinite loading