get ddress by qrCode

vidaia/lib/pages/exchange/scan_page.dart

@@ -10,18 +10,19 @@ class ScanPage extends StatefulWidget {
 }
 
 class _ScanPageState extends State<ScanPage> {
-
   @override
   Widget build(BuildContext context) {
     return MobileScanner(
-          allowDuplicates: false,
-          controller: MobileScannerController(
-            facing: CameraFacing.back, torchEnabled: false),
-          onDetect: (barcode, args) {
-            final String code = barcode.rawValue!;
-            global.qrCode = code;
-            debugPrint('Barcode found! $code');
-            Navigator.pop(context);
-          });
+        allowDuplicates: false,
+        controller: MobileScannerController(
+          facing: CameraFacing.back,
+          torchEnabled: false,
+          formats: [BarcodeFormat.qrCode],
+        ),
+        onDetect: (barcode, args) {
+          final String code = barcode.rawValue!;
+          debugPrint('Barcode found! $code');
+          Navigator.pop(context, code);
+        });
   }
 }

vidaia/lib/pages/exchange/send/send_page.dart

@@ -1,10 +1,13 @@
 import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:vidaia/main.dart';
 import 'package:vidaia/pages/exchange/scan_page.dart';
 import 'package:vidaia/repositories/dataRepository.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 import 'package:vidaia/utils/globals.dart' as global;
+import 'package:vidaia/utils/invalid_Address_Exception.dart';
+import 'package:vidaia/utils/popups.dart';
 import 'package:vidaia/utils/wallet.dart';
 
 import '../../../utils/constants.dart';
@@ -20,6 +23,18 @@ class _SendPageState extends State<SendPage> {
   final addressController = TextEditingController();
   final valueController = TextEditingController();
 
+  updateAddress(String address) {
+    setState(() => addressController.text = address);
+  }
+
+  moveToSecondPage() async {
+    final address = await Navigator.push(
+      context,
+      MaterialPageRoute(builder: (context) => ScanPage()),
+    );
+    updateAddress(address);
+  }
+
   @override
   void dispose() {
     valueController.dispose();
@@ -43,43 +58,52 @@ class _SendPageState extends State<SendPage> {
               style: Theme.of(context).textTheme.subtitle1,
             ),
             onTap: () {
-              Navigator.push(
-                context,
-                MaterialPageRoute(builder: (context) => ScanPage()),
-              );
+              moveToSecondPage();
             },
           ),
         ),
         Padding(
           padding: const EdgeInsets.all(8.0),
           child: TextField(
-
             decoration: InputDecoration(
-                border: OutlineInputBorder(),
-                hintText: "Receiver's Address",
-              ),
+              border: OutlineInputBorder(),
+              hintText: "Receiver's Address",
+            ),
             controller: addressController,
           ),
         ),
         Padding(
           padding: const EdgeInsets.all(8.0),
           child: TextField(
             decoration: InputDecoration(
-                border: OutlineInputBorder(),
-                hintText: 'Amount',
-              ),
+              border: OutlineInputBorder(),
+              hintText: 'Amount',
+            ),
             controller: valueController,
           ),
         ),
-                ElevatedButton(
+        ElevatedButton(
             onPressed: () {
-              addressController.text = '0x00bab3d8de4ebbefb07d53b1ff8c0f2434bd616d';
+              addressController.text =
+                  '0x00bab3d8de4ebbefb07d53b1ff8c0f2434bd616d';
             },
             child: Text('set address')),
         ElevatedButton(
-            onPressed: () {
-              transferVidar(int.parse(valueController.text),
-                  addressController.text, 'https://testnet.veblocks.net');
+            onPressed: () async {
+              var res;
+              try {
+                res = await transferVidar(int.parse(valueController.text),
+                    addressController.text, 'https://testnet.veblocks.net');
+              } on InvalidAddressException {
+                oneButtonPopup(context, Text('Transaction Failed'),
+                    Text('The Address is not valid'));
+              } finally {
+                if (res.containsKey('id')) {
+                  txConfirmedAlert(context, res['id']);
+                } else {
+                  txError(context);
+                }
+              }
             },
             child: Text('Send')),
       ],

vidaia/lib/utils/invalid_Address_Exception.dart

@@ -0,0 +1,25 @@
+
+import 'package:thor_devkit_dart/crypto/address.dart';
+
+class InvalidAddressException implements Exception {
+   late String _message;
+
+    InvalidAddressException([String message = 'Invalid InvalidAddress']) {
+      _message = message;
+    }
+
+
+    @override
+    String toString() {
+      return _message;
+    }
+
+}
+
+ void validateAddress(String address) {
+    if (address == null) {
+      throw InvalidAddressException();
+    } else if (!Address.isAddress(address)) {
+      throw InvalidAddressException("Invalid Address!");
+    }
+  }

vidaia/lib/utils/popups.dart

@@ -0,0 +1,29 @@
+
+
+import 'package:flutter/material.dart';
+
+oneButtonPopup(BuildContext context, Text title, Text content) {
+  // set up the buttons
+  Widget cancelButton = TextButton(
+    child: Text("OK"),
+    onPressed: () {
+      Navigator.pop(context);
+    },
+  );
+  // set up the AlertDialog
+  AlertDialog alert = AlertDialog(
+    title: title,
+    content: content,
+    actions: [
+      cancelButton,
+    ],
+  );
+  // show the dialog
+  showDialog(
+    barrierDismissible: false,
+    context: context,
+    builder: (BuildContext context) {
+      return alert;
+    },
+  );
+}

vidaia/lib/utils/wallet.dart

@@ -9,6 +9,7 @@ import 'package:thor_request_dart/connect.dart';
 import 'package:thor_request_dart/contract.dart';
 import 'package:thor_request_dart/wallet.dart';
 import 'package:vidaia/utils/globals.dart' as global;
+import 'package:vidaia/utils/invalid_Address_Exception.dart';
 
 createNewWallet() async {
   //generate mnemonic phrase and save it on local device
@@ -66,6 +67,7 @@ getWordButtons() async {
 }
 
 Future<Map> transferVidar(int value, String address, String url) async {
+  validateAddress(address);
   final storage = FlutterSecureStorage();
   Connect connect = Connect(url);
   final String? priv = await storage.read(key: 'privateKey');
@@ -218,3 +220,55 @@ confirmPurchase(BuildContext context) {
     },
   );
 }
+
+txConfirmedAlert(BuildContext context, String txId) {
+  // set up the buttons
+  Widget cancelButton = TextButton(
+    child: Text("OK"),
+    onPressed: () {
+      Navigator.pop(context);
+    },
+  );
+  // set up the AlertDialog
+  AlertDialog alert = AlertDialog(
+    title: Text("Transction Successful"),
+    content: Text("Transaction ID: \n" + txId),
+    actions: [
+      cancelButton,
+    ],
+  );
+  // show the dialog
+  showDialog(
+    barrierDismissible: false,
+    context: context,
+    builder: (BuildContext context) {
+      return alert;
+    },
+  );
+}
+
+txError(BuildContext context) {
+  // set up the buttons
+  Widget cancelButton = TextButton(
+    child: Text("OK"),
+    onPressed: () {
+      Navigator.pop(context);
+    },
+  );
+  // set up the AlertDialog
+  AlertDialog alert = AlertDialog(
+    title: Text("Transction Failed"),
+    content: Text("Something went wrong"),
+    actions: [
+      cancelButton,
+    ],
+  );
+  // show the dialog
+  showDialog(
+    barrierDismissible: false,
+    context: context,
+    builder: (BuildContext context) {
+      return alert;
+    },
+  );
+}