<?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"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
   >

    <DatePicker
        android:id="@+id/date_picker_dialog"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/date_picker_dialog_button__ok"
        android:text="ok"
        android:textColor="@color/colorPrimaryDark"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/date_picker_dialog" />

    <com.google.android.material.button.MaterialButton
        android:id="@+id/date_picker_dialog_button__cancel"
        android:text="cancell"
        android:textColor="@color/colorPrimaryDark"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/date_picker_dialog"
        />


</androidx.constraintlayout.widget.ConstraintLayout>