<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:keepScreenOn="true">

  <com.google.mlkit.vision.demo.CameraSourcePreview
      android:id="@+id/preview_view"
      android:layout_width="match_parent"
      android:layout_height="match_parent"/>

  <com.google.mlkit.vision.demo.GraphicOverlay
      android:id="@+id/graphic_overlay"
      android:layout_width="match_parent"
      android:layout_height="match_parent"/>
</FrameLayout>
