change page navigation

lib/pages/discount/discount_editor.dart

@@ -5,6 +5,7 @@ import 'package:fcs/pages/main/util.dart';
 import 'package:fcs/pages/widgets/display_text.dart';
 import 'package:fcs/pages/widgets/input_text.dart';
 import 'package:fcs/pages/widgets/progress.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_icons/flutter_icons.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
@@ -72,7 +73,7 @@ class _DiscountEditorState extends State<DiscountEditor> {
               AppTranslations.of(context).text("discount.form"),
             ),
             leading: new IconButton(
-              icon: new Icon(Icons.close),
+              icon: new Icon(CupertinoIcons.back),
               onPressed: () => Navigator.of(context).pop(),
             ),
             backgroundColor: primaryColor,

lib/pages/discount/discount_list.dart

@@ -52,9 +52,10 @@ class _DiscountListState extends State<DiscountList> {
               onTap: () {
                 Navigator.push(
                   context,
-                  BottomUpPageRoute(DiscountEditor(
-                    discount: discount,
-                  )),
+                  CupertinoPageRoute(
+                      builder: (context) => DiscountEditor(
+                            discount: discount,
+                          )),
                 );
               },
               child: Padding(
@@ -119,7 +120,7 @@ class _DiscountListState extends State<DiscountList> {
           onPressed: () {
             Navigator.push(
               context,
-              BottomUpPageRoute(DiscountEditor()),
+              CupertinoPageRoute(builder: (context) => DiscountEditor()),
             );
           },
           icon: Icon(Icons.add),