<?xml version="1.0" encoding="utf-8"?>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <!--第一层阴影-->

    <item>

        <shape android:shape="rectangle">

            <solid android:color="#0F000000" />

            <corners android:radius="4dp" />

        </shape>

    </item>

    <!--第二层前景-->

    <item

        android:bottom="1dp">

        <shape android:shape="rectangle">

            <solid android:color="@android:color/white" />

            <corners android:radius="4dp" />

        </shape>

    </item>

</layer-list>