<TextView
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="1"
        android:paddingHorizontal="5dp"
        android:textColor="@android:color/white"
        android:background="@drawable/rounded_background"/>

<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="rectangle"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="@android:color/darker_gray"/>
    <corners android:radius="10dp"/>
</shape>