slide_rules.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <pl.droidsonroids.gif.GifImageView
        android:id="@+id/dancer"
        android:layout_width="wrap_content"
        android:layout_height="400dp"
        android:layout_marginTop="100dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        />

    <TextView
        android:id="@+id/textView31"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginEnd="24dp"
        android:textSize="24sp"
        android:textAlignment="center"
        android:text="@string/rules1_description"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/dancer"
        app:layout_constraintVertical_bias="0.25" />

</androidx.constraintlayout.widget.ConstraintLayout>