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fix: safe scan notifications

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Janez T
2026-03-05 20:10:08 +01:00
parent 42fc1f9cd2
commit 03c0c7ad38
2 changed files with 21 additions and 14 deletions
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14
lib/widgets/connection_dialog.dart
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@@ -16,6 +16,7 @@ class ConnectionDialog extends StatefulWidget {
class _ConnectionDialogState extends State<ConnectionDialog>
with SingleTickerProviderStateMixin {
late TabController _tabController;
late final ConnectionProvider _connectionProvider;
final NetworkScannerService _networkScanner = NetworkScannerService();
final List<DiscoveredServer> _discoveredServers = [];
int _scannedCount = 0;
@@ -46,16 +47,13 @@ class _ConnectionDialogState extends State<ConnectionDialog>
void initState() {
super.initState();
_tabController = TabController(length: 2, vsync: this);
_connectionProvider = Provider.of<ConnectionProvider>(context, listen: false);
// Defer scan startup until after the first frame so Provider listeners
// are not notified while this dialog is still being built.
WidgetsBinding.instance.addPostFrameCallback((_) {
if (!mounted) return;
final connectionProvider = Provider.of<ConnectionProvider>(
context,
listen: false,
);
connectionProvider.startScan();
_connectionProvider.startScan();
});
// Set up network scanner callbacks
@@ -85,11 +83,7 @@ class _ConnectionDialogState extends State<ConnectionDialog>
@override
void dispose() {
final connectionProvider = Provider.of<ConnectionProvider>(
context,
listen: false,
);
connectionProvider.stopScan();
_connectionProvider.stopScan();
_networkScanner.stopScan();
// Remove listener before disposing to prevent memory leaks
_tabController.removeListener(_onTabChanged);