packages/SystemUI/res-keyguard/layout/footer_actions.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.
-->

<!-- Action buttons for footer in QS/QQS, containing settings button, power off button etc -->
<com.android.systemui.qs.FooterActionsView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    android:gravity="center_vertical">

    <com.android.systemui.statusbar.AlphaOptimizedImageView
        android:id="@android:id/edit"
        android:layout_width="0dp"
        android:layout_height="@dimen/qs_footer_action_button_size"
        android:layout_marginEnd="@dimen/qs_tile_margin_horizontal"
        android:layout_weight="1"
        android:background="@drawable/qs_footer_action_chip_background"
        android:clickable="true"
        android:clipToPadding="false"
        android:contentDescription="@string/accessibility_quick_settings_edit"
        android:focusable="true"
        android:padding="@dimen/qs_footer_icon_padding"
        android:src="@*android:drawable/ic_mode_edit"
        android:tint="?android:attr/textColorPrimary" />

    <com.android.systemui.statusbar.phone.MultiUserSwitch
        android:id="@+id/multi_user_switch"
        android:layout_width="0dp"
        android:layout_height="@dimen/qs_footer_action_button_size"
        android:layout_marginEnd="@dimen/qs_tile_margin_horizontal"
        android:layout_weight="1"
        android:background="@drawable/qs_footer_action_chip_background"
        android:focusable="true">

        <ImageView
            android:id="@+id/multi_user_avatar"
            android:layout_width="@dimen/multi_user_avatar_expanded_size"
            android:layout_height="@dimen/multi_user_avatar_expanded_size"
            android:layout_gravity="center"
            android:scaleType="centerInside" />
    </com.android.systemui.statusbar.phone.MultiUserSwitch>

    <com.android.systemui.statusbar.AlphaOptimizedImageView
        android:id="@+id/pm_lite"
        android:layout_width="0dp"
        android:layout_height="@dimen/qs_footer_action_button_size"
        android:layout_marginEnd="@dimen/qs_tile_margin_horizontal"
        android:layout_weight="1"
        android:background="@drawable/qs_footer_action_chip_background"
        android:clickable="true"
        android:clipToPadding="false"
        android:focusable="true"
        android:padding="@dimen/qs_footer_icon_padding"
        android:src="@*android:drawable/ic_lock_power_off"
        android:contentDescription="@string/accessibility_quick_settings_power_menu"
        android:tint="?android:attr/textColorPrimary" />

    <com.android.systemui.statusbar.AlphaOptimizedFrameLayout
        android:id="@+id/settings_button_container"
        android:layout_width="0dp"
        android:layout_height="@dimen/qs_footer_action_button_size"
        android:background="@drawable/qs_footer_action_chip_background"
        android:layout_weight="1"
        android:clipChildren="false"
        android:clipToPadding="false">

        <com.android.systemui.statusbar.phone.SettingsButton
            android:id="@+id/settings_button"
            android:layout_width="match_parent"
            android:layout_height="@dimen/qs_footer_action_button_size"
            android:layout_gravity="center"
            android:contentDescription="@string/accessibility_quick_settings_settings"
            android:background="@drawable/qs_footer_action_chip_background_borderless"
            android:padding="@dimen/qs_footer_icon_padding"
            android:scaleType="centerInside"
            android:src="@drawable/ic_settings"
            android:tint="?android:attr/textColorPrimary" />

        <com.android.systemui.statusbar.AlphaOptimizedImageView
            android:id="@+id/tuner_icon"
            android:layout_width="8dp"
            android:layout_height="8dp"
            android:layout_gravity="center_horizontal|bottom"
            android:layout_marginBottom="@dimen/qs_footer_icon_padding"
            android:src="@drawable/tuner"
            android:tint="?android:attr/textColorTertiary"
            android:visibility="invisible" />

    </com.android.systemui.statusbar.AlphaOptimizedFrameLayout>

</com.android.systemui.qs.FooterActionsView>