如何在TextView中开启垂直AutoScroll (安卓)

<TextView
    android:id="@+id/scrollingTextView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:maxLines="1"
    android:singleLine="true"
    android:ellipsize="marquee"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:marqueeRepeatLimit="marquee_forever"
    android:scrollHorizontally="true"
    android:text="This is a scrolling text view example." />

TextView scrollingTextView = findViewById(R.id.scrollingTextView);
scrollingTextView.setSelected(true);
scrollingTextView.setSingleLine(true);
scrollingTextView.setEllipsize(TextUtils.TruncateAt.MARQUEE);
scrollingTextView.setMarqueeRepeatLimit(-1);
scrollingTextView.setHorizontalScrollBarEnabled(false);
scrollingTextView.setVerticalScrollBarEnabled(false);

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    TextView scrollingTextView = findViewById(R.id.scrollingTextView);
    scrollingTextView.requestFocus();
}