Gadgetbridge/app/src/main/res/layout/activity_qhybrid_calibration.xml

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

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

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="10dp"
            android:text="@string/qhybrid_calibration_align_hint" />

        <Spinner
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/qhybrid_calibration_hand_spinner" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:weightSum="2">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:orientation="vertical"
                android:gravity="center_horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/qhybrid_calibration_counterclockwise"/>

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/qhybrid_calibration_counter_clockwise_1"
                    android:text="@string/qhybrid_calibration_1_step" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/qhybrid_calibration_counter_clockwise_10"
                    android:text="@string/qhybrid_calibration_10_steps" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/qhybrid_calibration_counter_clockwise_100"
                    android:text="@string/qhybrid_calibration_100_steps" />

            </LinearLayout>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:orientation="vertical"
                android:gravity="center_horizontal">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/qhybrid_calibration_clockwise"/>

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/qhybrid_calibration_clockwise_1"
                    android:text="@string/qhybrid_calibration_1_step" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/qhybrid_calibration_clockwise_10"
                    android:text="@string/qhybrid_calibration_10_steps" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:id="@+id/qhybrid_calibration_clockwise_100"
                    android:text="@string/qhybrid_calibration_100_steps" />

            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>