Track látszik a terepi bejárás térképen is, gps log jelvesztéskor.

lib/pages/map_survey/presentations/views/map_survey_view.dart

@@ -86,7 +86,8 @@ class MapSurveyView extends GetView<MapSurveyController> {
           const ImportedLayerOverlay(),
           // Track polyline
           Obx(() {
-            final inTrackMode = controller.mode.value == MapSurveyMode.track;
+            final inTrackMode = controller.mode.value == MapSurveyMode.track ||
+                controller.mode.value == MapSurveyMode.fieldWalk;
             if (!inTrackMode) return const SizedBox.shrink();
             final ids = TrackingController.to.overlayTrackIds;
             if (ids.isEmpty) return const SizedBox.shrink();

lib/pages/tracking/presentation/controllers/tracking_controller.dart

@@ -88,6 +88,13 @@ class TrackingController extends GetxController {
   final _db = TrackDatabase.instance;
   final _exporter = GpxExporter();
 
+  // Timer
+  DateTime? _lastPositionTime;
+  Timer? _watchdogTimer;
+  final gpsSignalLost = false.obs;
+
+  static const _gpsTimeoutSec = 10;
+
   // ── Inicializálás ──────────────────────────────────────────────────────────
 
   @override
@@ -191,6 +198,7 @@ class TrackingController extends GetxController {
 
     isRecording.value = true;
     isPaused.value = false;
+    _startWatchdog();
   }
 
   void pauseRecording() {
@@ -245,6 +253,10 @@ class TrackingController extends GetxController {
     isPaused.value = false;
 
     await loadSavedTracks();
+
+    _watchdogTimer?.cancel();
+    _watchdogTimer = null;
+    gpsSignalLost.value = false;
   }
 
   Future<void> loadSavedTracks() async {
@@ -281,11 +293,24 @@ class TrackingController extends GetxController {
   Future<void> _onPosition(SourcePosition pos) async {
     try {
       if (isPaused.value) return;
+      _lastPositionTime = DateTime.now();
+      gpsSignalLost.value = false;
       final sw = Stopwatch()..start();
 
       final trackId = currentTrack.value?.id;
       if (trackId == null) return;
 
+      final point = TrackPoint(
+        trackId: trackId,
+        latitude: pos.latitude,
+        longitude: pos.longitude,
+        altitude: pos.altitude,
+        accuracy: pos.accuracy,
+        speed: pos.speed,
+        heading: pos.heading,
+        timestamp: pos.timestamp,
+      );
+
       // Távolság a legutóbbi ponttól
       double segmentDist = 0;
       if (_lastPoint != null) {
@@ -296,7 +321,14 @@ class TrackingController extends GetxController {
           pos.longitude,
         );
         // Szűrés: ugrásszerű változás (pl. GPS lock elvesztése) ignorálása
-        if (segmentDist > 100) return;
+        if (segmentDist > 100) {
+          AppLogger.w(
+              '_onPosition',
+              'GPS ugrás kiszűrve: ${segmentDist.toStringAsFixed(0)}m '
+                  '(pts: ${livePoints.length})');
+          _lastPoint = point; // reset — következő pont ettől mér
+          return;
+        }
       }
 
       _accumulatedDistance += segmentDist;
@@ -306,16 +338,6 @@ class TrackingController extends GetxController {
       currentSpeedKmh.value = (pos.speed ?? 0) * 3.6;
 
       // Pont mentése
-      final point = TrackPoint(
-        trackId: trackId,
-        latitude: pos.latitude,
-        longitude: pos.longitude,
-        altitude: pos.altitude,
-        accuracy: pos.accuracy,
-        speed: pos.speed,
-        heading: pos.heading,
-        timestamp: pos.timestamp,
-      );
       await _db.addPoint(point, _accumulatedDistance);
       sw.stop();
 
@@ -398,4 +420,61 @@ class TrackingController extends GetxController {
     _trackCoords[trackId] = pts.map((p) => LatLng(p.lat, p.lon)).toList();
     overlayTrackIds.refresh(); // térkép frissítés
   }
+
+  void _startWatchdog() {
+    _watchdogTimer = Timer.periodic(
+      const Duration(seconds: 5),
+      (_) => _checkGpsTimeout(),
+    );
+  }
+
+  void _checkGpsTimeout() {
+    if (!isRecording.value || isPaused.value) return;
+    final last = _lastPositionTime;
+    if (last == null) return;
+
+    final elapsedSec = DateTime.now().difference(last).inSeconds;
+    if (elapsedSec < _gpsTimeoutSec) return;
+
+    if (!gpsSignalLost.value) {
+      gpsSignalLost.value = true;
+
+      AppLogger.w(
+          'watchdog',
+          'GPS jel elveszett: ${elapsedSec}s óta nincs pozíció '
+              '(pts: ${livePoints.length}, '
+              'táv: ${_formatDistance(_accumulatedDistance)})');
+
+      AppLogger.w(
+          'gps_signal_lost',
+          'elapsed_sec:  ${elapsedSec}'
+              'point_count:  ${livePoints.length}'
+              'distance_m:   ${_accumulatedDistance.round()}');
+
+      // Foreground notification frissítése
+      FlutterForegroundTask.updateService(
+        notificationTitle: '⚠ GPS jel elveszett',
+        notificationText: 'Track szünetel — folytatódik ha visszajön a jel',
+      );
+
+      // Snackbar ha előtérben van az app
+      if (!isInBackground.value) {
+        Get.snackbar(
+          'GPS jel elveszett',
+          'Valószínűleg alagút vagy lefedettség hiány.\n'
+              'A rögzítés automatikusan folytatódik.',
+          duration: const Duration(seconds: 6),
+          backgroundColor: Colors.orange.shade700,
+          colorText: Colors.white,
+          icon: const Icon(Icons.gps_off, color: Colors.white),
+          snackPosition: SnackPosition.TOP,
+        );
+      }
+    }
+
+    // Folyamatosan logol amíg nincs jel (percenként egyszer)
+    if (elapsedSec % 60 == 0) {
+      AppLogger.w('watchdog', 'GPS még mindig hiányzik: ${elapsedSec}s');
+    }
+  }
 }