XklLocal/app/src/main/res/layout/inc_control_button.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="wrap_content">

    <Button
        android:id="@+id/tv_left"
        style="@style/common_button"
        android:layout_width="0dp"
        android:layout_height="@dimen/common_button_height"
        android:backgroundTint="@color/control_left"
        android:gravity="center"
        app:cornerRadius="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@id/tv_center"
        app:layout_constraintHorizontal_chainStyle="spread"
        app:layout_constraintHorizontal_weight="3"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:text="@string/control_answer"
        tools:visibility="visible" />

    <Button
        android:id="@+id/tv_center"
        style="@style/common_button"
        android:layout_width="0dp"
        android:layout_height="@dimen/common_button_height"
        android:layout_marginStart="8dp"
        android:layout_marginEnd="8dp"
        android:backgroundTint="@color/control_center"
        android:text="@string/control_error"
        app:cornerRadius="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@+id/tv_right"
        app:layout_constraintHorizontal_weight="3"
        app:layout_constraintStart_toEndOf="@+id/tv_left"
        app:layout_constraintTop_toTopOf="parent"
        tools:visibility="visible" />

    <Button
        android:id="@+id/tv_right"
        style="@style/common_button"
        android:layout_width="0dp"
        android:layout_height="@dimen/common_button_height"
        android:backgroundTint="@color/control_right"
        android:text="@string/control_reRead"
        app:cornerRadius="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_weight="2"
        app:layout_constraintStart_toEndOf="@+id/tv_center"
        app:layout_constraintTop_toTopOf="parent"
        tools:visibility="visible" />
</androidx.constraintlayout.widget.ConstraintLayout>