[求助] TextView 跑马灯滚动时两端变黑

<com.hnhengshuokeji.tgame.activity.common.MarqueeTextView
android:id="@+id/main_tv_speaker"
android:layout_width="1100px"
android:layout_height="wrap_content"
android:layout_marginLeft="350px"
android:layout_marginTop="318px"
android:ellipsize="marquee"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
android:text="12345 12345 12345 12345 12345 12345 "
android:textColor="@android:color/white"
android:textSize="35px" />
继承 TextView 重写 isFocused()，让它 return true
@Override
public boolean isFocused(){
return true;
}

求大神告诉我怎样去掉这两个黑块？