CWA-209 | added possibility to show address of subaddress instead empty label; added possibility to edit label of subaddress; added setLabel method to subaddress creation store; fixed setLabelSubaddress method in the subaddress_list.dart

lib/router.dart

@@ -258,7 +258,7 @@ class Router {
             builder: (_) => Provider(
                 create: (_) =>
                     SubadrressCreationStore(walletService: walletService),
-                child: NewSubaddressPage()));
+                child: NewSubaddressPage(subaddress: settings.arguments as Subaddress,)));
 
       case Routes.disclaimer:
         return CupertinoPageRoute<void>(builder: (_) => DisclaimerPage());

lib/src/domain/monero/subaddress_list.dart

@@ -50,7 +50,7 @@ class SubaddressList {
       {int accountIndex, int addressIndex, String label}) async {
     await subaddress_list.setLabelForSubaddress(
         accountIndex: accountIndex, addressIndex: addressIndex, label: label);
-    await update();
+    await update(accountIndex: accountIndex);
   }
 
   Future refresh({int accountIndex}) async {

lib/src/screens/receive/receive_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_mobx/flutter_mobx.dart';
 import 'package:esys_flutter_share/esys_flutter_share.dart';
+import 'package:flutter_slidable/flutter_slidable.dart';
 import 'package:provider/provider.dart';
 import 'package:cake_wallet/routes.dart';
 import 'package:cake_wallet/palette.dart';
@@ -77,6 +78,9 @@ class ReceiveBodyState extends State<ReceiveBody> {
     final currentColor = PaletteDark.menuList;
     final notCurrentColor = PaletteDark.historyPanel;
 
+    final currentTextColor = Colors.blue;
+    final notCurrentTextColor = PaletteDark.walletCardText;
+
     amountController.addListener(() {
       if (_formKey.currentState.validate()) {
         walletStore.onChangedAmountValue(amountController.text);
@@ -253,9 +257,11 @@ class ReceiveBodyState extends State<ReceiveBody> {
                               final isCurrent =
                                   walletStore.subaddress.address == subaddress.address;
 
-                              final label = subaddress.label;
+                              final label = subaddress.label.isNotEmpty
+                              ? subaddress.label
+                              : subaddress.address;
 
-                              return InkWell(
+                              final content = InkWell(
                                 onTap: () => walletStore.setSubaddress(subaddress),
                                 child: Container(
                                   color: isCurrent ? currentColor : notCurrentColor,
@@ -268,13 +274,33 @@ class ReceiveBodyState extends State<ReceiveBody> {
                                   child: Text(
                                     label,
                                     style: TextStyle(
-                                      fontSize: 18,
+                                      fontSize: subaddress.label.isNotEmpty
+                                          ? 18 : 10,
                                       fontWeight: FontWeight.bold,
-                                      color: PaletteDark.walletCardText
+                                      color: isCurrent
+                                          ? currentTextColor
+                                          : notCurrentTextColor,
                                     ),
                                   ),
                                 ),
                               );
+
+                              return isCurrent
+                              ? content
+                              : Slidable(
+                                key: Key(subaddress.address),
+                                actionPane: SlidableDrawerActionPane(),
+                                child: content,
+                                secondaryActions: <Widget>[
+                                  IconSlideAction(
+                                    caption: S.of(context).edit,
+                                    color: PaletteDark.walletCardSubAddressField,
+                                    icon: Icons.edit,
+                                    onTap: () => Navigator.of(context)
+                                        .pushNamed(Routes.newSubaddress, arguments: subaddress),
+                                  )
+                                ]
+                              );
                             }
                         );
                       }

lib/src/screens/subaddress/new_subaddress_page.dart

@@ -1,3 +1,4 @@
+import 'package:cake_wallet/src/domain/monero/subaddress.dart';
 import 'package:mobx/mobx.dart';
 import 'package:provider/provider.dart';
 import 'package:flutter/cupertino.dart';
@@ -12,6 +13,10 @@ import 'package:cake_wallet/palette.dart';
 import 'package:cake_wallet/src/widgets/base_text_form_field.dart';
 
 class NewSubaddressPage extends BasePage {
+  NewSubaddressPage({this.subaddress});
+
+  final Subaddress subaddress;
+
   @override
   String get title => S.current.new_subaddress_title;
 
@@ -19,7 +24,7 @@ class NewSubaddressPage extends BasePage {
   Color get backgroundColor => PaletteDark.historyPanel;
 
   @override
-  Widget body(BuildContext context) => NewSubaddressForm();
+  Widget body(BuildContext context) => NewSubaddressForm(subaddress);
 
   @override
   Widget build(BuildContext context) {
@@ -38,13 +43,26 @@ class NewSubaddressPage extends BasePage {
 }
 
 class NewSubaddressForm extends StatefulWidget {
+  NewSubaddressForm(this.subaddress);
+
+  final Subaddress subaddress;
+
   @override
-  NewSubaddressFormState createState() => NewSubaddressFormState();
+  NewSubaddressFormState createState() => NewSubaddressFormState(subaddress);
 }
 
 class NewSubaddressFormState extends State<NewSubaddressForm> {
+  NewSubaddressFormState(this.subaddress);
+
   final _formKey = GlobalKey<FormState>();
   final _labelController = TextEditingController();
+  final Subaddress subaddress;
+
+  @override
+  void initState() {
+    if (subaddress != null) _labelController.text = subaddress.label;
+    super.initState();
+  }
 
   @override
   void dispose() {
@@ -88,12 +106,20 @@ class NewSubaddressFormState extends State<NewSubaddressForm> {
                 builder: (_) => LoadingPrimaryButton(
                     onPressed: () async {
                       if (_formKey.currentState.validate()) {
-                        await subaddressCreationStore.add(
-                            label: _labelController.text);
-                        Navigator.of(context).pop();
+                        if (subaddress != null) {
+                          await subaddressCreationStore.setLabel(
+                            addressIndex: subaddress.id,
+                            label: _labelController.text
+                          );
+                        } else {
+                          await subaddressCreationStore.add(
+                              label: _labelController.text);
+                        }
                       }
                     },
-                    text: S.of(context).new_subaddress_create,
+                    text: subaddress != null
+                    ? S.of(context).rename
+                    : S.of(context).new_subaddress_create,
                     color: Colors.green,
                     textColor: Colors.white,
                     isLoading:

lib/src/stores/subaddress_creation/subaddress_creation_store.dart

@@ -27,6 +27,7 @@ abstract class SubadrressCreationStoreBase with Store {
         walletService.onWalletChange.listen(_onWalletChanged);
   }
 
+  @observable
   SubaddressCreationState state;
 
   @observable
@@ -70,6 +71,20 @@ abstract class SubadrressCreationStoreBase with Store {
     }
   }
 
+  Future<void> setLabel({int addressIndex, String label}) async {
+    try {
+      state = SubaddressIsCreating();
+      await _subaddressList.setLabelSubaddress(
+          accountIndex: _account.id,
+          addressIndex: addressIndex,
+          label: label
+      );
+      state = SubaddressCreatedSuccessfully();
+    } catch (e) {
+      state = SubaddressCreationFailure(error: e.toString());
+    }
+  }
+
   Future<void> _onWalletChanged(Wallet wallet) async {
     if (wallet is MoneroWallet) {
       _account = wallet.account;