luojigou_video_player/kit/src/main/res/drawable/shadow_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">

    <corners
        android:bottomLeftRadius="@dimen/superplayer_vod_player_window_radius"
        android:bottomRightRadius="@dimen/superplayer_vod_player_window_radius" />

    <gradient
        android:angle="270"
        android:endColor="#80000000"
        android:startColor="#00050505"
        android:type="linear" />
</shape>