XML Layout for material dialog fragment in android

custom_dialog_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView
    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"
    android:minWidth="280dp"
    app:cardCornerRadius="20dp">

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:minWidth="280dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:minWidth="280dp">

            <ImageView
                android:id="@+id/backgroundImageView"
                android:layout_width="match_parent"
                android:layout_height="150dp"
                android:background="#181818"/>

            <TextView
                android:id="@+id/titleTextView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Title Here"
                android:textSize="24sp"
                android:textColor="#181818"
                android:textAlignment="center"
                android:textStyle="bold"
                android:padding="10dp"/>

            <TextView
                android:id="@+id/descriptionTextView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Description comes here."
                android:textSize="16sp"
                android:textColor="#474747"
                android:textAlignment="center"
                android:layout_marginRight="10dp"
                android:layout_marginLeft="10dp"
                android:paddingBottom="10dp"/>

            <TextView
                android:id="@+id/activateButton"
                android:layout_width="100dp"
                android:layout_height="50dp"
                android:text="ACTIVATE"
                android:textSize="16dp"
                android:textColor="#FFFFFF"
                android:background="#181818"
                android:layout_gravity="center"
                android:gravity="center"
                android:layout_marginTop="20dp"
                android:layout_marginBottom="50dp"/>

        </LinearLayout>

        <TextView
            android:id="@+id/closeTextView"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:text="X"
            android:gravity="center"
            android:textColor="#80F2F2F2"
            android:textSize="24sp"
            android:layout_gravity="right"
            android:layout_margin="20dp"/>

    </FrameLayout>

</androidx.cardview.widget.CardView>