<?xml version="1.0" encoding="utf-8" ?>
<layer-list
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <bitmap
            android:src="@drawable/splash_screen"
            android:tileMode="disabled"
            android:gravity="center" 
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </item>
</layer-list>

android:layout_width="match_parent"
android:layout_height="wrap_content"