lawnchair/wmshell/res/layout/letterbox_restart_dialog_layout.xml

<!--
  ~ Copyright (C) 2023 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.android.wm.shell.compatui.RestartDialogLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    style="@style/LetterboxDialog">

    <!-- The background of the top-level layout acts as the background dim. -->

    <!-- Vertical margin will be set dynamically since it depends on task bounds.
         Setting the alpha of the dialog container to 0, since it shouldn't be visible until the
         enter animation starts. -->
    <FrameLayout
        android:id="@+id/letterbox_restart_dialog_container"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginHorizontal="@dimen/letterbox_restart_dialog_margin"
        android:background="@drawable/letterbox_restart_dialog_background"
        android:alpha="0"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintWidth_max="@dimen/letterbox_restart_dialog_width">

        <!-- The ScrollView should only wrap the content of the dialog, otherwise the background
             corner radius will be cut off when scrolling to the top/bottom. -->

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

            <LinearLayout
                android:padding="24dp"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center_horizontal"
                android:orientation="vertical">

                <ImageView
                    android:importantForAccessibility="no"
                    android:layout_width="@dimen/letterbox_restart_dialog_title_icon_width"
                    android:layout_height="@dimen/letterbox_restart_dialog_title_icon_height"
                    android:src="@drawable/letterbox_restart_header_ic_arrows"/>

                <TextView
                    android:layout_marginVertical="16dp"
                    android:id="@+id/letterbox_restart_dialog_title"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/letterbox_restart_dialog_title"
                    android:textAlignment="center"
                    android:textAppearance="@style/RestartDialogTitleText"/>

                <TextView
                    android:textAppearance="@style/RestartDialogBodyText"
                    android:id="@+id/letterbox_restart_dialog_description"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/letterbox_restart_dialog_description"
                    android:textAlignment="center"/>

                <LinearLayout
                    android:id="@+id/letterbox_restart_dialog_checkbox_container"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:paddingVertical="14dp"
                    android:orientation="horizontal"
                    android:layout_gravity="center_vertical"
                    android:layout_marginVertical="18dp">

                    <CheckBox
                        android:id="@+id/letterbox_restart_dialog_checkbox"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:button="@drawable/letterbox_restart_checkbox_button"/>

                    <TextView
                        android:textAppearance="@style/RestartDialogCheckboxText"
                        android:layout_marginStart="12dp"
                        android:id="@+id/letterbox_restart_dialog_checkbox_description"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="@string/letterbox_restart_dialog_checkbox_title"
                        android:textAlignment="textStart"/>

                </LinearLayout>

                <FrameLayout
                    android:minHeight="@dimen/letterbox_restart_dialog_button_height"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content">

                    <Button
                        android:textAppearance="@style/RestartDialogDismissButton"
                        android:id="@+id/letterbox_restart_dialog_dismiss_button"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:minWidth="@dimen/letterbox_restart_dialog_button_width"
                        android:minHeight="@dimen/letterbox_restart_dialog_button_height"
                        android:layout_gravity="start"
                        android:background=
                            "@drawable/letterbox_restart_dismiss_button_background_ripple"
                        android:text="@string/letterbox_restart_cancel"
                        android:contentDescription="@string/letterbox_restart_cancel"/>

                    <Button
                        android:textAppearance="@style/RestartDialogConfirmButton"
                        android:id="@+id/letterbox_restart_dialog_restart_button"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:minWidth="@dimen/letterbox_restart_dialog_button_width"
                        android:minHeight="@dimen/letterbox_restart_dialog_button_height"
                        android:layout_gravity="end"
                        android:background=
                            "@drawable/letterbox_restart_button_background_ripple"
                        android:text="@string/letterbox_restart_restart"
                        android:contentDescription="@string/letterbox_restart_restart"/>

                </FrameLayout>

            </LinearLayout>

        </ScrollView>

    </FrameLayout>

</com.android.wm.shell.compatui.RestartDialogLayout>