final

lib/widgets/general/show_price.dart

@@ -3,10 +3,10 @@ import 'package:flutter/material.dart';
 
 class ShowPrice extends StatelessWidget {
   final double price;
-  final double regularPrice;
+  final double? regularPrice;
   final double largeFontSize;
   final double smallFontSize;
-  final String currencySign;
+  final String? currencySign;
   final Color color;
   final FontWeight fontWeight;
 
@@ -36,7 +36,7 @@ class ShowPrice extends StatelessWidget {
               Container(
                 padding: EdgeInsets.only(top: largeFontSize / 10.0),
                 child: Text(
-                  currencySign,
+                  currencySign!,
                   style: TextStyle(
                     fontSize: smallFontSize,
                     color: color,
@@ -65,12 +65,12 @@ class ShowPrice extends StatelessWidget {
               ),
             ),
           ),
-          regularPrice == null || price.round() >= regularPrice.round() ?
+          regularPrice == null || price.round() >= regularPrice!.round() ?
           SizedBox.shrink() :
           Container(
             padding: EdgeInsets.only(top: largeFontSize / 2),
             child: Text(
-              regularPrice.toStringAsFixed(0),
+              '${regularPrice?.toStringAsFixed(0)}',
               style: TextStyle(
                 color: Colors.black38,
                 fontSize: smallFontSize,