activityAbout.axml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/layoutRoot"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <include
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        layout="@layout/includeAppBar"/>

    <androidx.core.widget.NestedScrollView
        android:id="@+id/nestedScrollView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <android.webkit.WebView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/webView"/>
 
    </androidx.core.widget.NestedScrollView>

</androidx.coordinatorlayout.widget.CoordinatorLayout>