bridge/tests/res/testApp/MyApplication/src/main/res/layout/shadows_test.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2017 The Android Open Source Project
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~      http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="vertical"
              android:layout_width="match_parent"
              android:layout_height="match_parent" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <Button
            android:layout_marginLeft="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:elevation="48dp"
            android:text="48"
            android:stateListAnimator="@null"/>

        <Button
            android:layout_marginRight="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:elevation="48dp"
            android:text="48"
            android:stateListAnimator="@null"/>

    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <Button
            android:layout_marginLeft="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:elevation="0dp"
            android:text="0"
            android:stateListAnimator="@null"/>

        <Button
            android:layout_marginRight="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:elevation="100dp"
            android:text="100"
            android:stateListAnimator="@null"/>

    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <Button
            android:layout_marginLeft="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:elevation="12dp"
            android:text="12"
            android:stateListAnimator="@null"/>

        <Button
            android:layout_marginRight="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:elevation="36dp"
            android:text="36"
            android:stateListAnimator="@null"/>

    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <Button
            android:layout_marginLeft="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:elevation="12dp"
            android:text="12"
            android:stateListAnimator="@null"
            android:alpha="0.1"/>

        <Button
            android:layout_marginRight="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:elevation="12dp"
            android:text="12"
            android:stateListAnimator="@null"
            android:alpha="0.5"/>

    </RelativeLayout>

    <!-- Test translation -->
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <Button
            android:translationX="5dp"
            android:translationY="20dp"
            android:layout_marginLeft="40dp"
            android:layout_width="48dp"
            android:layout_height="40dp"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:elevation="12dp"
            android:text="12"
            android:stateListAnimator="@null" />

    </RelativeLayout>
</LinearLayout>