res/layout/adb_qrcode_scanner_fragment.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.
-->

<com.google.android.setupdesign.GlifLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:theme="@style/GlifV3Theme"
    android:icon="@drawable/ic_scan_32dp">

    <LinearLayout
        style="@style/SudContentFrame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:gravity="center_horizontal">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:gravity="center_horizontal"
            android:id="@+id/camera_layout">

            <TextView
                android:id="@android:id/summary"
                style="@style/TextAppearance.SudGlifBody"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="?attr/sudMarginStart"
                android:layout_marginEnd="?attr/sudMarginEnd"
                android:textAlignment="center"
                android:accessibilityLiveRegion="polite"/>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:orientation="vertical">

                <FrameLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:clipChildren="true">
                    <TextureView
                        android:id="@+id/preview_view"
                        android:layout_width="match_parent"
                        android:layout_height="@dimen/qrcode_preview_size"/>
                    <com.android.settings.wifi.qrcode.QrDecorateView
                        android:id="@+id/decorate_view"
                        android:layout_width="match_parent"
                        android:layout_height="@dimen/qrcode_preview_size"/>
                </FrameLayout>

                <TextView
                    android:id="@+id/error_message"
                    style="@style/TextAppearance.ErrorText"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="16dp"
                    android:layout_marginStart="?attr/sudMarginStart"
                    android:layout_marginEnd="?attr/sudMarginEnd"
                    android:textAlignment="center"
                    android:visibility="invisible"/>

            </LinearLayout>

        </LinearLayout>

        <!--
             The spinner indicating that the device is waiting for pairing
             after getting valid QR code
        -->
        <LinearLayout
            android:id="@+id/verifying_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center"
            android:orientation="vertical"
            android:visibility="gone">

            <ProgressBar
                android:id="@+id/verifying_progress"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"/>

            <TextView
                android:id="@+id/verifying_textview"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                style="@style/adb_wireless_item_progress_text"
                android:text="@string/adb_wireless_verifying_qrcode_text"
                android:accessibilityLiveRegion="polite"/>

        </LinearLayout>

    </LinearLayout>
</com.google.android.setupdesign.GlifLayout>