packages/SystemUI/res-keyguard/layout/keyguard_bouncer_user_switcher.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
**
** Copyright 2021, 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:id="@+id/keyguard_bouncer_user_switcher"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:clipChildren="false"
    android:clipToPadding="false"
    android:orientation="vertical"
    android:gravity="center"
    android:importantForAccessibility="yes"> <!-- Needed because TYPE_WINDOW_STATE_CHANGED is sent
                                                  from this view when bouncer is shown -->

    <ImageView
        android:id="@+id/user_icon"
        android:layout_width="@dimen/bouncer_user_switcher_icon_size"
        android:layout_height="@dimen/bouncer_user_switcher_icon_size" />

    <!-- need to keep this outer view in order to have a correctly sized anchor
         for the dropdown menu, as well as dropdown background in the right place -->
    <com.android.keyguard.KeyguardUserSwitcherAnchor
        android:id="@+id/user_switcher_anchor"
        android:orientation="horizontal"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:layout_marginTop="30dp">
      <TextView
          style="@style/Bouncer.UserSwitcher.Spinner.Header"
          android:clickable="false"
          android:id="@+id/user_switcher_header"
          android:textDirection="locale"
          android:layout_width="@dimen/bouncer_user_switcher_width"
          android:layout_height="wrap_content" />
    </com.android.keyguard.KeyguardUserSwitcherAnchor>

</LinearLayout>