Fix bad rebuild view when change default wallet

lib/models/myWallets.dart

@@ -9,7 +9,7 @@ class MyWalletsProvider with ChangeNotifier {
   String listWallets;
 
   Future initWalletFolder() async {
-    await getDefaultWallet();
+    getDefaultWallet();
 
     final bool isWalletFolderExist = await walletsDirectory.exists();
     if (!isWalletFolderExist) {
@@ -84,17 +84,17 @@ class MyWalletsProvider with ChangeNotifier {
     return listWallets;
   }
 
-  Future getDefaultWallet() async {
+  void getDefaultWallet() {
     defaultWalletFile = File('${appPath.path}/defaultWallet');
 
-    bool isdefaultWalletFile = await defaultWalletFile.exists();
+    bool isdefaultWalletFile = defaultWalletFile.existsSync();
 
     if (!isdefaultWalletFile) {
-      await File(defaultWalletFile.path).create();
+      File(defaultWalletFile.path).createSync();
     }
 
     try {
-      defaultWallet = await defaultWalletFile.readAsString();
+      defaultWallet = defaultWalletFile.readAsStringSync();
     } catch (e) {
       defaultWallet = '0:0';
     }

lib/models/walletOptions.dart

@@ -22,6 +22,7 @@ class WalletOptionsProvider with ChangeNotifier {
   FocusNode walletNameFocus = FocusNode();
   TextEditingController nameController = TextEditingController();
   String walletID;
+  bool isDefaultWallet;
 
   Future<NewWallet> get badWallet => null;
 
@@ -356,12 +357,11 @@ class WalletOptionsProvider with ChangeNotifier {
     return await scanner.generateBarCode(_pubkey);
   }
 
-  Future defAsDefaultWallet(String _id) async {
-    await defaultWalletFile.delete();
-    await defaultWalletFile.create();
-    await defaultWalletFile
-        .writeAsString(_id)
-        .then((value) => notifyListeners());
+  void defAsDefaultWallet(String _id) {
+    defaultWalletFile.deleteSync();
+    defaultWalletFile.createSync();
+    defaultWalletFile.writeAsStringSync(_id);
+    notifyListeners();
   }
 
   Future changeAvatar() async {

lib/screens/myWallets/walletOptions.dart

@@ -24,7 +24,6 @@ class WalletOptions extends StatelessWidget {
   int derivation;
   int _nbrLinesName = 1;
   bool _isNewNameValid = false;
-  bool isDefaultWallet;
 
   @override
   Widget build(BuildContext context) {
@@ -46,7 +45,6 @@ class WalletOptions extends StatelessWidget {
     } else {
       walletName = _walletOptions.nameController.text;
     }
-    _walletOptions.walletID = '0:$walletNbr';
 
     _walletOptions.nameController.text.length >= 15
         ? _nbrLinesName = 2
@@ -54,9 +52,13 @@ class WalletOptions extends StatelessWidget {
     if (_walletOptions.nameController.text.length >= 26 && isTall)
       _nbrLinesName = 3;
 
+    _walletOptions.walletID = '0:$walletNbr';
+
+    _myWalletProvider.getDefaultWallet();
+
     defaultWallet == _walletOptions.walletID
-        ? isDefaultWallet = true
-        : isDefaultWallet = false;
+        ? _walletOptions.isDefaultWallet = true
+        : _walletOptions.isDefaultWallet = false;
 
     // print(_walletOptions.generateQRcode(_walletOptions.pubkey.text));
 
@@ -172,7 +174,6 @@ class WalletOptions extends StatelessWidget {
                                   return Text('Loading');
                                 }
 
-                                // TODO: catch links errors
                                 print(result);
 
                                 // List repositories = result.data['viewer']['repositories']['nodes'];
@@ -366,15 +367,12 @@ class WalletOptions extends StatelessWidget {
                         ]))),
                 SizedBox(height: 12 * ratio),
                 InkWell(
-                    onTap: !isDefaultWallet
-                        ? () async {
-                            await _walletOptions
-                                .defAsDefaultWallet(_walletOptions.walletID)
-                                .then((value) => {
-                                      _myWalletProvider
-                                          .getAllWalletsNames(_currentChest),
-                                      _myWalletProvider.rebuildWidget()
-                                    });
+                    onTap: !_walletOptions.isDefaultWallet
+                        ? () {
+                            defaultWallet = '0:$walletNbr';
+                            _walletOptions
+                                .defAsDefaultWallet(_walletOptions.walletID);
+                            _myWalletProvider.getAllWalletsNames(_currentChest);
                           }
                         : null,
                     child: SizedBox(
@@ -382,19 +380,19 @@ class WalletOptions extends StatelessWidget {
                         child: Row(children: <Widget>[
                           SizedBox(width: 31),
                           CircleAvatar(
-                              backgroundColor:
-                                  Colors.grey[isDefaultWallet ? 300 : 500],
+                              backgroundColor: Colors.grey[
+                                  _walletOptions.isDefaultWallet ? 300 : 500],
                               child: Image.asset(
                                 'assets/walletOptions/android-checkmark.png',
                               )),
                           SizedBox(width: 12),
                           Text(
-                              isDefaultWallet
+                              _walletOptions.isDefaultWallet
                                   ? 'Ce portefeuille est celui par defaut'
                                   : 'Définir comme portefeuille par défaut',
                               style: TextStyle(
                                   fontSize: 20,
-                                  color: isDefaultWallet
+                                  color: _walletOptions.isDefaultWallet
                                       ? Colors.grey[500]
                                       : Colors.black)),
                         ]))),