PinPoint/app/src/main/res/layout-land/activity_bowling_camera.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Landscape button arrangement: with the screen wide and short, a bottom bar
  (see the portrait default in res/layout/) would leave little room for the
  preview and put the record button awkwardly close to the edge, so it moves
  to a vertically-centered side column instead. Same view IDs as the
  portrait layout so BowlingCameraActivity's view-binding code needs no
  orientation-specific logic - Android just swaps which XML gets inflated.
-->
<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"
    android:keepScreenOn="true"
    tools:context=".bowling.BowlingCameraActivity">

    <androidx.camera.view.PreviewView
        android:id="@+id/camera_preview"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <com.example.jnicpp.bowling.PoseOverlayView
        android:id="@+id/pose_overlay"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintTop_toTopOf="@id/camera_preview"
        app:layout_constraintBottom_toBottomOf="@id/camera_preview"
        app:layout_constraintStart_toStartOf="@id/camera_preview"
        app:layout_constraintEnd_toEndOf="@id/camera_preview" />

    <!--
      Recording indicator: red dot + elapsed timer, only visible while
      recording. Anchored below btn_back (rather than parent's top) so the
      two never overlap - btn_back is declared later in this file so it
      draws on top, but ConstraintLayout resolves constraint references
      regardless of declaration order, so this forward reference is fine.
    -->
    <LinearLayout
        android:id="@+id/layout_recording_indicator"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center_vertical"
        android:background="@color/overlay_scrim"
        android:paddingHorizontal="12dp"
        android:paddingVertical="6dp"
        android:visibility="gone"
        tools:visibility="visible"
        app:layout_constraintTop_toBottomOf="@id/btn_back"
        app:layout_constraintStart_toStartOf="parent"
        android:layout_marginTop="8dp"
        android:layout_marginStart="16dp">

        <View
            android:id="@+id/view_recording_dot"
            android:layout_width="12dp"
            android:layout_height="12dp"
            android:background="@drawable/shape_recording_dot" />

        <TextView
            android:id="@+id/text_timer"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:text="@string/recording_timer_placeholder"
            android:textColor="@color/white"
            android:textSize="16sp"
            android:fontFamily="monospace" />

        <!-- Live step counter, resets to 0 when the bowler returns to a
             stationary starting stance mid-recording (see LiveStepDetector). -->
        <TextView
            android:id="@+id/text_step_count"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:text="@string/step_count_placeholder"
            android:textColor="@color/white"
            android:textSize="16sp"
            android:textStyle="bold" />
    </LinearLayout>

    <!-- Live "you're in your final position" banner, shown once the 5th
         (final) foot-plant of the current attempt is detected (see
         BowlingCameraActivity's stepEvents collector), cleared automatically
         whenever the step count resets for the next attempt. Centered
         horizontally regardless of orientation, anchored below the top
         corner buttons so it never overlaps them. -->
    <TextView
        android:id="@+id/text_final_position"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@color/overlay_scrim"
        android:paddingHorizontal="20dp"
        android:paddingVertical="10dp"
        android:text="@string/final_position_reached"
        android:textColor="@color/final_position_highlight"
        android:textSize="22sp"
        android:textStyle="bold"
        android:visibility="gone"
        tools:visibility="visible"
        app:layout_constraintTop_toBottomOf="@id/btn_switch_camera"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        android:layout_marginTop="16dp" />

    <!--
      Mirrored onto the start edge at the same vertical center as btn_record
      on the end edge. Live pose overlay + baked-in-recording toggle; only
      togglable while not recording (see
      BowlingCameraActivity#renderRecordingState) since the recording
      pipeline picks its pose mode once at start.
    -->
    <com.google.android.material.switchmaterial.SwitchMaterial
        android:id="@+id/switch_pose"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:text="@string/toggle_pose"
        android:textColor="@color/white"
        app:layout_constraintTop_toTopOf="@id/btn_record"
        app:layout_constraintBottom_toBottomOf="@id/btn_record"
        app:layout_constraintStart_toStartOf="parent" />

    <!-- Side column instead of a bottom bar: vertically centered, hugging the end edge. -->
    <Button
        android:id="@+id/btn_record"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="32dp"
        android:text="@string/record"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent" />

    <!-- Above the record button in the same side column, rather than the top corner. -->
    <Button
        android:id="@+id/btn_switch_camera"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:text="@string/switch_camera"
        app:layout_constraintBottom_toTopOf="@id/btn_record"
        app:layout_constraintEnd_toEndOf="@id/btn_record" />

    <!-- Shown instead of the camera UI when CAMERA/RECORD_AUDIO aren't granted -->
    <LinearLayout
        android:id="@+id/layout_permission_rationale"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:gravity="center"
        android:padding="24dp"
        android:background="@color/black"
        android:visibility="gone"
        tools:visibility="visible"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent">

        <TextView
            android:id="@+id/text_permission_message"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/permission_rationale_message"
            android:textColor="@color/white"
            android:textSize="16sp"
            android:gravity="center"
            android:layout_marginBottom="16dp" />

        <Button
            android:id="@+id/btn_grant_permissions"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/grant_permissions" />
    </LinearLayout>

    <!-- Declared last so it draws above the permission rationale screen too,
         keeping a way back out of this Activity available in every state. -->
    <Button
        android:id="@+id/btn_back"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:layout_marginStart="16dp"
        android:text="@string/back"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>