Android TextView设置Marquee,如何去除TextView左右阴影

Question

I set the Marquee of TextView,and its running well,but when the text moving, there are shadows at left and right of the TextView,how to remove the shadows? my xml code

<TextView
  android:id="@+id/tv_result"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:ellipsize="marquee"
  android:focusable="true"
  android:focusableInTouchMode="true"
  android:gravity="center_vertical"
  android:marqueeRepeatLimit="marquee_forever"
  android:singleLine="true"
  android:textColor="@color/white"
  android:textSize="20sp" />

There are not shadows of the text,just like Masks align the left and right of the TextView.When marquee is running,they are displayed.And dismiss when marquee is stop.

Answer 1

extends the TextView overwrite onDraw()

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    setHorizontalFadingEdgeEnabled(false);
}

Answer 2

只需调用setFadingEdgeLength(0)即可，无需扩展 TextView。

Answer 3

在你的文本视图上使用 setShadowLayer

tv_result.setShadowLayer(0,0,0,0)