res/layout/preference_radio.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.
-->
<!-- This file is copied from preference_app.xml with modification to
     support widget on the opposite side horizontally -->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:settings="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?android:attr/selectableItemBackground"
    android:gravity="center_vertical"
    android:minHeight="?android:attr/listPreferredItemHeightSmall"
    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd">

    <LinearLayout
        android:id="@android:id/widget_frame"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center"
        android:minWidth="56dp"
        android:layout_marginEnd="16dp"
        android:orientation="vertical" />

    <LinearLayout
        android:id="@+id/icon_frame"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:minWidth="32dp"
        android:orientation="horizontal"
        android:layout_marginEnd="16dp"
        android:paddingTop="4dp"
        android:paddingBottom="4dp">
        <androidx.preference.internal.PreferenceImageView
            android:id="@android:id/icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            settings:maxWidth="@dimen/secondary_app_icon_size"
            settings:maxHeight="@dimen/secondary_app_icon_size" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="vertical"
        android:paddingTop="16dp"
        android:paddingBottom="16dp">

        <TextView android:id="@android:id/title"
                  android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:singleLine="true"
                  android:textAppearance="@style/TextAppearance.TileTitle"
                  android:ellipsize="marquee"
                  android:fadingEdge="horizontal" />

        <LinearLayout
            android:id="@+id/summary_container"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:visibility="gone">
            <TextView android:id="@android:id/summary"
                      android:layout_width="0dp"
                      android:layout_height="wrap_content"
                      android:layout_weight="1"
                      android:textAppearance="@style/TextAppearance.Small"
                      android:textAlignment="viewStart"
                      android:textColor="?android:attr/textColorSecondary" />

            <TextView android:id="@+id/appendix"
                      android:layout_width="0dp"
                      android:layout_height="wrap_content"
                      android:layout_weight="1"
                      android:textAppearance="@style/TextAppearance.Small"
                      android:textAlignment="viewEnd"
                      android:textColor="?android:attr/textColorSecondary"
                      android:maxLines="1"
                      android:ellipsize="end" />
        </LinearLayout>
        <ProgressBar
            android:id="@android:id/progress"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:max="100"
            android:visibility="gone" />
    </LinearLayout>

</LinearLayout>