final

lib/pages/checkout.dart

@@ -11,7 +11,7 @@ import '../widgets/mobile/mobile_checkout.dart';
 class Checkout extends StatelessWidget {
   final int businessId;
 
-  const Checkout(this.businessId, {Key key}) :
+  const Checkout(this.businessId, {Key? key}) :
       super(key: key);
 
   @override
@@ -20,10 +20,10 @@ class Checkout extends StatelessWidget {
 
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
-          ScreenTypeLayout(
-            mobile: MobileCheckout(businessId),
-            tablet: DesktopCheckout(businessId),
-            desktop: DesktopCheckout(businessId),
+          ScreenTypeLayout.builder(
+            mobile: (context) => MobileCheckout(businessId),
+            tablet: (context) => DesktopCheckout(businessId),
+            desktop: (context) => DesktopCheckout(businessId),
           ),
     );
   }