滚动文字不起作用

Question

我在我的活动的布局中有以下textView，我希望它自动滚动但不会发生。有没有人知道为什么会这样？

    <TextView
    android:id="@+id/superAttackDesc"
    android:layout_width="314dp"
    android:layout_height="21dp"
    android:layout_marginBottom="5dp"
    android:layout_marginStart="8dp"
    android:ellipsize="marquee"
    android:focusable="true"
    android:focusableInTouchMode="true"
    android:fontFamily="monospace"
    android:marqueeRepeatLimit="marquee_forever"
    android:scrollHorizontally="true"
    android:singleLine="true"
    android:textAlignment="viewStart"
    android:textColor="@android:color/white"
    android:textStyle="italic"
    app:layout_constraintBottom_toBottomOf="@+id/cardDetailsImageView"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.753"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/superAttackTitle"
    app:layout_constraintVertical_bias="0.175" />