edittext_readonly.xml

<EditText
        android:id="@+id/etFecha"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:clickable="true"
        android:ems="10"
        android:focusable="false"
        android:inputType="none"
        android:textIsSelectable="false"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@+id/guideline"
        app:layout_constraintTop_toBottomOf="@+id/textInputLayout" />