fix errors

lib/pages/package/package_info.dart

@@ -25,10 +25,12 @@ import 'package:provider/provider.dart';
 final DateFormat dateFormat = DateFormat("d MMM yyyy");
 
 class PackageInfo extends StatefulWidget {
+  final isCustomer;
   final isSearchResult;
   final Package package;
 
-  PackageInfo({this.package, this.isSearchResult = false});
+  PackageInfo(
+      {this.package, this.isSearchResult = false, this.isCustomer = false});
 
   @override
   _PackageInfoState createState() => _PackageInfoState();
@@ -156,7 +158,8 @@ class _PackageInfoState extends State<PackageInfo> {
                   _package.photoUrls.length == 0 ? Container() : img,
                   widget.isSearchResult ? Container() : descBox,
                   remarkBox,
-                  _package.status == package_processed_status
+                  _package.status == package_received_status &&
+                          widget.isCustomer
                       ? returnButton
                       : Container(),
                   widget.isSearchResult ? Container() : deliveryAddressBox,

lib/pages/package/package_list.dart

@@ -106,6 +106,7 @@ class _PackageListState extends State<PackageList> {
                         return PackageListRow(
                           key: ValueKey(packages[index].id),
                           package: packages[index],
+                          isCustomer: widget.forCustomer,
                         );
                       }),
                   onRefresh: () =>

lib/pages/package/package_list_row.dart

@@ -10,12 +10,14 @@ import 'package:intl/intl.dart';
 typedef CallbackPackageSelect(Package package);
 
 class PackageListRow extends StatelessWidget {
+  final bool isCustomer;
   final Package package;
   final CallbackPackageSelect callbackPackageSelect;
   final double dotSize = 15.0;
   final DateFormat dateFormat = new DateFormat("dd MMM yyyy");
 
-  PackageListRow({Key key, this.package, this.callbackPackageSelect})
+  PackageListRow(
+      {Key key, this.package, this.callbackPackageSelect, this.isCustomer})
       : super(key: key);
 
   @override
@@ -29,7 +31,10 @@ class PackageListRow extends StatelessWidget {
         Navigator.push(
           context,
           CupertinoPageRoute(
-              builder: (context) => PackageInfo(package: package)),
+              builder: (context) => PackageInfo(
+                    package: package,
+                    isCustomer: isCustomer,
+                  )),
         );
       },
       child: Container(