fix double pop (#310)

Author: willyfromtheblock

CHANGELOG.md

@@ -1,3 +1,6 @@
+### **1.4.7** (2025-08-11)
+- Fix qr code scanning for addresses
+
 ### **1.4.6** (2025-07-22)
 - Fix file import for ROAST groups
 

lib/screens/qrcode_scanner.dart

@@ -15,6 +15,7 @@ class QRScanner extends StatefulWidget {
 class _QRScannerState extends State<QRScanner> {
   late QRViewController controller;
   final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
+  bool _hasScannedAndNavigated = false;
 
   @override
   void reassemble() {
@@ -90,7 +91,8 @@ class _QRScannerState extends State<QRScanner> {
 
     controller.scannedDataStream.listen(
       (scanData) async {
-        if (!mounted) return;
+        if (!mounted || _hasScannedAndNavigated) return;
+        _hasScannedAndNavigated = true;
         await Navigator.maybeOf(context)!.maybePop(scanData.code);
       },
     );

pubspec.yaml

@@ -1,7 +1,7 @@
 name: peercoin
 description: A new Peercoin wallet.
 
-version: 1.4.6+155
+version: 1.4.7+156
 environment:
   sdk: '>=3.2.0 <4.0.0'