anotherim/src/main/res/layout/item_user_preview.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <eu.siacs.conversations.ui.widget.SquareFrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="?selectableItemBackgroundBorderless"
        android:padding="2dp">

        <com.makeramen.roundedimageview.RoundedImageView
            android:id="@+id/avatar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scaleType="centerInside"
            app:riv_corner_radius="6dp" />
    </eu.siacs.conversations.ui.widget.SquareFrameLayout>
</layout>