res/layout/face_enroll_introduction.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2018 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
  -->

<com.google.android.setupdesign.GlifLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:FaceEnrollAccessibilitySwitch="http://schemas.android.com/apk/res/com.android.settings"
    style="?attr/face_layout_theme"
    android:id="@+id/setup_wizard_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        style="@style/SudContentFrame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipChildren="false"
        android:clipToPadding="false"
        android:orientation="vertical">

        <com.google.android.setupdesign.view.RichTextView
            android:id="@+id/sud_layout_description"
            style="@style/SudDescription.Glif"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/security_settings_face_enroll_introduction_message" />

        <com.google.android.setupdesign.view.RichTextView
            android:id="@+id/error_text"
            style="@style/SudDescription.Glif"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <Space
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_weight="1"/>

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <com.google.android.setupdesign.view.IllustrationVideoView
                android:id="@+id/illustration_normal"
                style="@style/SudContentIllustration"
                android:layout_width="240dp"
                android:layout_height="240dp"
                app:sudVideo="@raw/face_enroll_introduction_animation" />

            <ImageView
                android:id="@+id/illustration_accessibility"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:visibility="invisible"
                android:background="@drawable/face_enroll_introduction" />

        </FrameLayout>

        <Space
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:layout_weight="2"/>

        <!-- Contains the buttons and extra information text at the bottom -->
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:layout_gravity="center_horizontal|bottom">

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">
                <Button
                    android:id="@+id/accessibility_button"
                    style="@style/SudGlifButton.Secondary"
                    android:layout_gravity="center"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/security_settings_face_enroll_introduction_accessibility" />

                <com.android.settings.biometrics.face.FaceEnrollAccessibilityToggle
                    android:id="@+id/toggle_diversity"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:visibility="invisible"
                    FaceEnrollAccessibilitySwitch:messageText="@string/security_settings_face_enroll_introduction_accessibility_diversity"/>

            </FrameLayout>

            <LinearLayout
                android:id="@+id/footer_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:paddingStart="16dp"
                android:paddingEnd="16dp">

                <ImageView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:background="@drawable/ic_face_enroll_introduction_detail">
                </ImageView>
                <Space
                    android:layout_width="8dp"
                    android:layout_height="wrap_content" />
                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/security_settings_face_enroll_introduction_footer_message"/>
            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

</com.google.android.setupdesign.GlifLayout>