Constraint layout Layer Kotlin

<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/image1"
        android:layout_width="64dp"
        android:layout_height="64dp"
        android:src="@drawable/background_badge_green"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toStartOf="@id/image2"/>

    <ImageView
        android:id="@+id/image2"
        android:layout_width="64dp"
        android:layout_height="64dp"
        android:src="@drawable/background_badge_red"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toEndOf="@id/image1"
        app:layout_constraintEnd_toEndOf="parent"/>

    <androidx.constraintlayout.helper.widget.Layer
        android:id="@+id/layer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:constraint_referenced_ids="image1, image2"/>

</androidx.constraintlayout.widget.ConstraintLayout>