change page navigation

lib/pages/package/package_info.dart

@@ -15,6 +15,7 @@ import 'package:fcs/pages/widgets/multi_img_controller.dart';
 import 'package:fcs/pages/widgets/multi_img_file.dart';
 import 'package:fcs/pages/widgets/progress.dart';
 import 'package:fcs/pages/widgets/status_tree.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_icons/flutter_icons.dart';
 import 'package:intl/intl.dart';
@@ -115,9 +116,10 @@ class _PackageInfoState extends State<PackageInfo> {
           ? () async {
               DeliveryAddress d = await Navigator.push<DeliveryAddress>(
                 context,
-                BottomUpPageRoute(DeliveryAddressSelection(
-                  deliveryAddress: _deliveryAddress,
-                )),
+                CupertinoPageRoute(
+                    builder: (context) => DeliveryAddressSelection(
+                          deliveryAddress: _deliveryAddress,
+                        )),
               );
               if (d == null) return;
               _changeDeliverayAddress(d);
@@ -131,7 +133,7 @@ class _PackageInfoState extends State<PackageInfo> {
         appBar: AppBar(
           centerTitle: true,
           leading: new IconButton(
-            icon: new Icon(Icons.close, color: primaryColor, size: 30),
+            icon: new Icon(CupertinoIcons.back, color: primaryColor, size: 30),
             onPressed: () => Navigator.of(context).pop(),
           ),
           shadowColor: Colors.transparent,