packages/SystemUI/res/layout/media_output_list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2020 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.
  -->

<FrameLayout
    android:id="@+id/device_container"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="64dp">

    <FrameLayout
        android:layout_width="36dp"
        android:layout_height="36dp"
        android:layout_gravity="center_vertical"
        android:layout_marginStart="16dp">
        <ImageView
            android:id="@+id/title_icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"/>
    </FrameLayout>

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_marginStart="68dp"
        android:ellipsize="end"
        android:maxLines="1"
        android:textColor="?android:attr/textColorPrimary"
        android:textSize="14sp"/>

    <RelativeLayout
        android:id="@+id/two_line_layout"
        android:layout_width="wrap_content"
        android:layout_height="48dp"
        android:layout_marginStart="52dp"
        android:layout_marginEnd="69dp"
        android:layout_marginTop="10dp">
        <TextView
            android:id="@+id/two_line_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="15dp"
            android:ellipsize="end"
            android:maxLines="1"
            android:textColor="?android:attr/textColorPrimary"
            android:textSize="14sp"/>
        <TextView
            android:id="@+id/subtitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="15dp"
            android:layout_marginBottom="7dp"
            android:layout_alignParentBottom="true"
            android:ellipsize="end"
            android:maxLines="1"
            android:textColor="?android:attr/textColorSecondary"
            android:textSize="12sp"
            android:fontFamily="roboto-regular"
            android:visibility="gone"/>
        <ProgressBar
            android:id="@+id/volume_indeterminate_progress"
            style="@*android:style/Widget.Material.ProgressBar.Horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginEnd="15dp"
            android:layout_marginBottom="1dp"
            android:layout_alignParentBottom="true"
            android:indeterminate="true"
            android:indeterminateOnly="true"
            android:visibility="gone"/>
        <SeekBar
            android:id="@+id/volume_seekbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"/>
    </RelativeLayout>

    <View
        android:layout_width="1dp"
        android:layout_height="36dp"
        android:layout_marginEnd="68dp"
        android:layout_gravity="right|center_vertical"
        android:background="?android:attr/listDivider"
        android:visibility="gone"/>

    <ImageView
        android:id="@+id/end_icon"
        android:layout_width="24dp"
        android:layout_height="24dp"
        android:layout_gravity="right|center_vertical"
        android:layout_marginEnd="24dp"
        android:visibility="gone"/>
</FrameLayout>