<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape>
            <solid android:color="#FFFFFF" />
        </shape>
    </item>
    <!-- 顶部边距200dp -->
    <item android:top="200dp">
        <bitmap
            android:gravity="top|center_horizontal"
            android:src="@drawable/logo" />
    </item>
</layer-list>