activity_circular_cards_scene1.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.motion.widget.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:motionDebug="SHOW_PATH"
    app:layoutDescription="@xml/activity_circular_cards_scene1"
    tools:context=".circularcards.scenes.CircularCardsScene1Activity">

    <View
        android:id="@+id/guide"
        android:layout_width="1dp"
        android:layout_height="1dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <com.google.android.material.card.MaterialCardView
        android:id="@+id/cardCenter"
        android:layout_width="318dp"
        android:layout_height="202dp"
        app:cardCornerRadius="8dp"
        app:cardBackgroundColor="@color/colorPrimaryDark"
        app:layout_constraintCircle="@+id/guide"
        app:layout_constraintCircleAngle="0"
        app:layout_constraintCircleRadius="190dp" />

</androidx.constraintlayout.motion.widget.MotionLayout>