Пользовательский dialogFragment не отображается на всю ширину

Question

мой пользовательский макет фрагмента диалога:

<?xml version="1.0" encoding="utf-8"?>
<layout 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">

    <data>

    </data>

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/title"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_margin="24dp"
            android:gravity="center|start"
            android:textColor="@android:color/black"
            android:textSize="15sp"
            android:textStyle="bold"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/message"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/default_margin"
            android:layout_marginBottom="@dimen/default_margin"
            android:gravity="center|start"
            android:textColor="@android:color/black"
            android:textSize="15sp"
            app:layout_constraintEnd_toEndOf="@+id/title"
            app:layout_constraintStart_toStartOf="@+id/title"
            app:layout_constraintTop_toBottomOf="@+id/title" />

        <TextView
            android:id="@+id/buttonTextView"
            android:layout_width="56dp"
            android:layout_height="@dimen/min_height"
            android:layout_marginStart="32dp"
            android:layout_marginTop="@dimen/half_default_margin"
            android:layout_marginEnd="32dp"
            android:gravity="center"
            android:text="@string/sign_in"
            android:textColor="@color/color_primary"
            android:textSize="15sp"
            android:textStyle="bold"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/message" />

    </androidx.constraintlayout.widget.ConstraintLayout>
</layout>

фрагмент:

class SimpleCustomDialogFragment(
    private val callback: CustomDialogClickListener, title: String, message: String,
    isModal: Boolean
) : DialogFragment() {
    private lateinit var title: String
    private lateinit var message: String
    private lateinit var viewBinding: SimpleCustomDialogFragmentBinding // use "simple_custom_dialog_fragmetn.xml"
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
    }

override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        viewBinding = SimpleCustomDialogFragmentBinding.inflate(layoutInflater)
        init()
        return viewBinding.root
    }

и используйте вот так в моей Деятельности:

 val simpleCustomDialogFragment = SimpleCustomDialogFragment(
            this,
            getString(R.string.complete_registration_process),
            message, true
        ).show(this.getSupportFragmentManager(), "dialog")

Вот результат:

Почему не отображается полная ширина?