fix: set EventChannel stream handler to emit location updates to Flutter

android/app/src/main/kotlin/com/traccar/traccar_client/BridgeModule.kt

@@ -20,10 +20,25 @@ class BridgeModule : FlutterPlugin, MethodChannel.MethodCallHandler {
         methodChannel.setMethodCallHandler(this)
 
         eventChannel = EventChannel(binding.binaryMessenger, "com.traccar.client/location_updates")
+        eventChannel.setStreamHandler(object : EventChannel.StreamHandler {
+            override fun onListen(arguments: Any?, events: EventChannel.EventSink?) {
+                eventSink = events
+            }
+
+            override fun onCancel(arguments: Any?) {
+                eventSink = null
+            }
+        })
     }
 
     override fun onDetachedFromEngine(binding: FlutterPlugin.FlutterPluginBinding) {
         methodChannel.setMethodCallHandler(null)
+        eventChannel.setStreamHandler(null)
+        eventSink = null
+    }
+
+    companion object {
+        var eventSink: EventChannel.EventSink? = null
     }
 
     override fun onMethodCall(call: MethodCall, result: MethodChannel.Result) {

android/app/src/main/kotlin/com/traccar/traccar_client/service/LocationTrackingService.kt

@@ -13,6 +13,7 @@ import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
 import androidx.core.app.NotificationCompat
+import com.traccar.traccar_client.BridgeModule
 import com.traccar.traccar_client.MainActivity
 import com.traccar.traccar_client.R
 import com.traccar.traccar_client.location.DistanceFilterProcessor
@@ -165,6 +166,16 @@ class LocationTrackingService : Service() {
 
         updateNotification(location)
 
+        BridgeModule.eventSink?.success(mapOf(
+            "latitude" to location.latitude,
+            "longitude" to location.longitude,
+            "accuracy" to if (location.hasAccuracy()) location.accuracy else null,
+            "speed" to if (location.hasSpeed()) location.speed else null,
+            "heading" to if (location.hasBearing()) location.bearing else null,
+            "altitude" to if (location.hasAltitude()) location.altitude else null,
+            "timestamp" to location.time
+        ))
+
         if (isNetworkAvailable) {
             sendLocationToServer(traccarLocation)
         } else {