TextView (xml)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/test_text"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="@string/test"
        android:gravity="center"
        android:textStyle="bold"
        android:textSize="20sp"
        android:textColor="@color/teal_200"
        android:textColorHighlight="@color/purple_200"
        />

</LinearLayout>