android中textview文本滚动效果

        android:id="@+id/textView1"        android:layout_width="100dp"        android:layout_height="wrap_content"        android:text="01234567890123456789"        android:background="@android:color/holo_blue_bright"        android:singleLine="true"             android:ellipsize="marquee"        android:marqueeRepeatLimit="marquee_forever"        android:focusable="true"        android:focusableInTouchMode="true"