【Android Studio】TextViewをスクロールできるようにする方法

<string name="paragraph">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam libero
        neque, consectetur non magna eu, malesuada volutpat arcu. Fusce sit amet luctus dolor, vel
        gravida sapien. Sed pharetra ex vel ligula condimentum, et ultricies tellus pellentesque.
        Vestibulum eget risus cursus, accumsan felis sed, mollis magna. Proin congue in metus et
        scelerisque. Donec nisi enim, sollicitudin sit amet molestie vel, dignissim varius est.
        Vestibulum ac ante at ante interdum efficitur. Nulla rutrum erat eu velit ornare commodo.
        Curabitur purus leo, vehicula et sapien at, sollicitudin volutpat ligula. Mauris at diam
        quis sapien rutrum condimentum. Etiam hendrerit aliquet velit mattis cursus. Phasellus
        convallis nunc eget turpis semper lobortis. Maecenas accumsan, quam nec imperdiet accumsan,
        arcu lacus tempor nulla, a porttitor massa odio sit amet lacus. Curabitur euismod rutrum
        interdum.</string>

<TextView
    android:id="@+id/textView"
    android:layout_width="250dp"
    android:layout_height="200dp"
    android:text="@string/paragraph"
    android:scrollbars="vertical"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

((TextView) findViewById(R.id.textView)).setMovementMethod(new ScrollingMovementMethod());

TextView textView = findViewById(R.id.textView);
textView.setMovementMethod(new ScrollingMovementMethod());