hostsidetests/services/activityandwindowmanager/activitymanager/app/res/layout/floating.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/popup_window"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="bottom|center"
    android:background="@android:color/white"
    android:padding="10dp"
    android:orientation="vertical">


    <TextView
        android:id="@+id/txt_backup"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:drawablePadding="15dp"
        android:gravity="center_vertical"
        android:padding="15dp"
        android:text="Backup"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/txt_detail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:drawablePadding="15dp"
        android:gravity="center_vertical"
        android:padding="15dp"
        android:text="Detail"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/txt_open"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:drawablePadding="15dp"
        android:gravity="center_vertical"
        android:padding="15dp"
        android:text="Open"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/txt_uninstall"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:drawablePadding="15dp"
        android:gravity="center_vertical"
        android:padding="15dp"
        android:text="Uninstall"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>