anroid-CheckShot/app/src/main/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <!-- CameraView for displaying the camera preview -->
    <androidx.camera.view.PreviewView
        android:id="@+id/viewFinder"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/controlPanel"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <!-- Control panel for camera controls -->
    <LinearLayout
        android:id="@+id/controlPanel"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="16dp"
        android:background="@color/white"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

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

            <!-- Capture button -->
            <ImageButton
                android:id="@+id/captureButton"
                android:layout_width="72dp"
                android:layout_height="72dp"
                android:layout_margin="16dp"
                android:background="@drawable/circle_button_background"
                android:src="@drawable/ic_camera"
                android:contentDescription="Capture photo" />

            <!-- Settings button -->
            <ImageButton
                android:id="@+id/settingsButton"
                android:layout_width="48dp"
                android:layout_height="48dp"
                android:layout_margin="16dp"
                android:background="?attr/selectableItemBackgroundBorderless"
                android:src="@drawable/ic_settings"
                android:contentDescription="Settings" />

        </LinearLayout>

        <!-- Preview of captured photos -->
        <HorizontalScrollView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp">

            <LinearLayout
                android:id="@+id/photoPreviewLayout"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:orientation="horizontal" />

        </HorizontalScrollView>

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>