Service

app/src/main/AndroidManifest.xml

@@ -45,6 +45,12 @@
             android:foregroundServiceType="location"
             android:exported="true">
         </service>
+        <service
+            android:name=".car.navigation.NavigationService"
+            android:enabled="true"
+            android:foregroundServiceType="location"
+            android:exported="true">
+        </service>
     </application>
 
 </manifest>

common/car/src/main/java/com/kouros/navigation/car/DeviceLocationManagerService.kt

@@ -0,0 +1,97 @@
+package com.kouros.navigation.car
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.location.Location
+import android.location.LocationManager
+import androidx.car.app.CarContext
+import androidx.core.location.LocationListenerCompat
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.lifecycleScope
+import androidx.lifecycle.repeatOnLifecycle
+import com.kouros.navigation.car.navigation.NavigationService
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.launch
+
+/**
+ * Manages device GPS location updates for navigation.
+ * Coordinates with car hardware sensors to avoid duplicate location sources.
+ *
+ * @param carContext The car context for accessing system services
+ * @param serviceOwner Owner of the lifecycle for coroutine management
+ * @param shouldUseCarLocationFlow Flow indicating whether car location hardware should be used
+ * @param onLocationUpdate Callback invoked when location updates are received
+ * @param onInitialLocation Callback invoked with the last known location when starting
+ */
+class DeviceLocationManagerService(
+    private val carContext: CarContext,
+    private val onLocationUpdate: (Location) -> Unit,
+    private val onInitialLocation: (Location) -> Unit
+) {
+
+    private val locationManager: LocationManager =
+        carContext.getSystemService(Context.LOCATION_SERVICE) as LocationManager
+
+    private var shouldUseDeviceLocation = true
+    private var isListening = false
+
+    /**
+     * Location listener that receives GPS updates from the device.
+     * Only processes location if car location hardware is not being used.
+     */
+    private val locationListener: LocationListenerCompat = LocationListenerCompat { location ->
+        if (shouldUseDeviceLocation) {
+            onLocationUpdate(location)
+        }
+    }
+
+    init {
+
+    }
+
+    /**
+     * Starts requesting location updates from device GPS.
+     * Provides initial location via callback and then starts continuous updates.
+     *
+     * @param minTimeMs Minimum time interval between updates in milliseconds (default: 500ms)
+     * @param minDistanceM Minimum distance between updates in meters (default: 5m)
+     */
+    @SuppressLint("MissingPermission")
+    fun startLocationUpdates(minTimeMs: Long = 1000, minDistanceM: Float = 1.0f) {
+        if (isListening) return
+
+        // Get and deliver last known location first
+        val lastLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER)
+        if (lastLocation != null) {
+            onInitialLocation(lastLocation)
+            onLocationUpdate(lastLocation)
+        }
+
+        // Start continuous location updates
+        locationManager.requestLocationUpdates(
+            LocationManager.GPS_PROVIDER,
+            minTimeMs,
+            minDistanceM,
+            locationListener
+        )
+        isListening = true
+    }
+
+    /**
+     * Stops receiving location updates from device GPS.
+     * Should be called when the session is destroyed to prevent memory leaks.
+     */
+    fun stopLocationUpdates() {
+        if (!isListening) return
+
+        locationManager.removeUpdates(locationListener)
+        isListening = false
+    }
+
+    /**
+     * Checks if location updates are currently active.
+     */
+    fun isListeningForUpdates(): Boolean = isListening
+}

common/car/src/main/java/com/kouros/navigation/car/NavigationSession.kt

@@ -1,22 +1,28 @@
 package com.kouros.navigation.car
 
-import android.Manifest
 import android.Manifest.permission
+import android.content.ComponentName
+import android.content.Context
 import android.content.Intent
+import android.content.ServiceConnection
 import android.content.pm.PackageManager
 import android.location.Location
+import android.os.IBinder
 import android.util.Log
+import androidx.annotation.RequiresPermission
 import androidx.car.app.CarContext
 import androidx.car.app.CarToast
 import androidx.car.app.Screen
 import androidx.car.app.ScreenManager
 import androidx.car.app.Session
 import androidx.car.app.connection.CarConnection
+import androidx.car.app.model.CarIcon
 import androidx.car.app.model.Distance
 import androidx.car.app.navigation.NavigationManager
 import androidx.car.app.navigation.NavigationManagerCallback
 import androidx.car.app.navigation.model.Destination
 import androidx.car.app.navigation.model.Step
+import androidx.car.app.navigation.model.TravelEstimate
 import androidx.car.app.navigation.model.Trip
 import androidx.lifecycle.DefaultLifecycleObserver
 import androidx.lifecycle.LifecycleObserver
@@ -27,6 +33,7 @@ import androidx.lifecycle.ViewModelStoreOwner
 import androidx.lifecycle.asLiveData
 import androidx.lifecycle.coroutineScope
 import androidx.lifecycle.lifecycleScope
+import com.kouros.navigation.car.navigation.NavigationService
 import com.kouros.navigation.car.navigation.RouteCarModel
 import com.kouros.navigation.car.navigation.Simulation
 import com.kouros.navigation.car.screen.NavigationListener
@@ -68,7 +75,6 @@ import kotlinx.coroutines.launch
 import java.time.Duration
 import java.time.LocalDateTime
 import java.time.ZoneOffset
-import kotlin.collections.listOf
 import kotlin.math.absoluteValue
 
 
@@ -98,9 +104,12 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
     lateinit var carSensorManager: CarSensorManager
 
     // Manages device GPS location updates
+    val useDeviceLocationManager = false
     lateinit var deviceLocationManager: DeviceLocationManager
 
-    lateinit var navigationManager: NavigationManager
+    var initialLocation = true;
+
+//    lateinit var navigationManager: NavigationManager
 
     lateinit var textToSpeechManager: TextToSpeechManager
 
@@ -126,12 +135,73 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
 
     var notificationActive = false
 
+    var navigationService: NavigationService? = null
+
+    val serviceListener: NavigationService.Listener = object : NavigationService.Listener {
+
+        override fun navigationStateChanged(
+            isNavigating: Boolean,
+            isRerouting: Boolean,
+            hasArrived: Boolean,
+            destinations: MutableList<Destination?>?,
+            steps: MutableList<Step>?,
+            nextDestinationTravelEstimate: TravelEstimate?,
+            nextStepRemainingDistance: Distance?,
+            shouldShowNextStep: Boolean,
+            shouldShowLanes: Boolean,
+            junctionImage: CarIcon?
+        ) {
+
+        }
+
+        override fun updateServiceLocation(location: Location) {
+            if (initialLocation) {
+                Log.d(TAG, "RecentPlaces $location")
+                navigationViewModel.loadRecentPlaces(
+                    carContext,
+                    location,
+                    surfaceRenderer.carOrientation,
+                )
+                initialLocation = false
+            }
+            updateLocation(location)
+        }
+    }
+
+    // Monitors the state of the connection to the Navigation service.
+    val serviceConnection: ServiceConnection = object : ServiceConnection {
+        @RequiresPermission(allOf = [permission.ACCESS_FINE_LOCATION, permission.ACCESS_COARSE_LOCATION])
+        override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+            Log.i(TAG, "In onServiceConnected() Session component:$service")
+            val binder: NavigationService.LocalBinder = service as NavigationService.LocalBinder
+            navigationService = binder.service
+            navigationService!!.setCarContext(carContext, serviceListener)
+        }
+
+        override fun onServiceDisconnected(name: ComponentName?) {
+            Log.i(TAG, "In onServiceDisconnected() component: $name")
+            // Unhook map models here
+            navigationService!!.clearCarContext()
+            navigationService = null
+        }
+    }
+
     /**
      * Lifecycle observer for managing session lifecycle events.
      * Cleans up resources when the session is destroyed.
      */
     private val lifecycleObserver: LifecycleObserver = object : DefaultLifecycleObserver {
 
+        override fun onStart(owner: LifecycleOwner) {
+            Log.i(TAG, "In onStart() Session")
+            carContext
+                .bindService(
+                    Intent(carContext, NavigationService::class.java),
+                    serviceConnection,
+                    Context.BIND_AUTO_CREATE
+                )
+        }
+
         override fun onPause(owner: LifecycleOwner) {
             Log.d(TAG, "NavigationSession paused")
             super.onPause(owner)
@@ -142,10 +212,16 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
             super.onResume(owner)
         }
 
-        override fun onDestroy(owner: LifecycleOwner) {
-            if (::navigationManager.isInitialized) {
-                navigationManager.clearNavigationManagerCallback()
+        override fun onStop(owner: LifecycleOwner) {
+            Log.i(TAG, "In onStop()")
+            carContext.unbindService(serviceConnection)
+            navigationService = null
         }
+
+        override fun onDestroy(owner: LifecycleOwner) {
+//            if (::navigationManager.isInitialized) {
+//                navigationManager.clearNavigationManagerCallback()
+//            }
             if (::carSensorManager.isInitialized) {
                 carSensorManager.cleanup()
             }
@@ -192,6 +268,7 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
      * Creates appropriate repository based on user selection.
      */
     fun onRoutingEngineStateUpdated(routeEngine: Int) {
+        Log.d(TAG, "onRoutingEngineStateUpdated $routeEngine")
         if (!::navigationViewModel.isInitialized || routeEngine != routingEngine) {
             navigationViewModel = when (routeEngine) {
                 RouteEngine.VALHALLA.ordinal -> NavigationViewModel(ValhallaRepository())
@@ -302,26 +379,26 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
      * Initializes managers for rendering, sensors, and location.
      */
     private fun initializeManagers() {
-        navigationManager = carContext.getCarService(NavigationManager::class.java)
-        navigationManager.setNavigationManagerCallback(object : NavigationManagerCallback {
-            override fun onAutoDriveEnabled() {
-                // Called when the app should simulate navigation (e.g., for testing)
-                deviceLocationManager.stopLocationUpdates()
-                autoDriveEnabled = true
-                startNavigation()
-                CarToast.makeText(carContext, "Auto drive enabled", CarToast.LENGTH_LONG)
-                    .show()
-            }
-
-            override fun onStopNavigation() {
-                // Called when the user stops navigation in the car screen
-                // Stop turn-by-turn logic and clean up
-                stopNavigation()
-                if (autoDriveEnabled) {
-                    deviceLocationManager.startLocationUpdates()
-                }
-            }
-        })
+//        navigationManager = carContext.getCarService(NavigationManager::class.java)
+//        navigationManager.setNavigationManagerCallback(object : NavigationManagerCallback {
+//            override fun onAutoDriveEnabled() {
+//                // Called when the app should simulate navigation (e.g., for testing)
+//                //deviceLocationManager.stopLocationUpdates()
+//                autoDriveEnabled = true
+//                startNavigation()
+//                CarToast.makeText(carContext, "Auto drive enabled", CarToast.LENGTH_LONG)
+//                    .show()
+//            }
+//
+//            override fun onStopNavigation() {
+//                // Called when the user stops navigation in the car screen
+//                // Stop turn-by-turn logic and clean up
+//                stopNavigation()
+//                if (autoDriveEnabled) {
+//                    //deviceLocationManager.startLocationUpdates()
+//                }
+//            }
+//        })
         surfaceRenderer = SurfaceRenderer(carContext, lifecycle, viewModelStoreOwner, this)
 
         carSensorManager = CarSensorManager(
@@ -332,6 +409,7 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
             onSpeedUpdate = { speed -> surfaceRenderer.updateCarSpeed(speed) }
         )
 
+        if (useDeviceLocationManager) {
             deviceLocationManager = DeviceLocationManager(
                 carContext = carContext,
                 lifecycleOwner = this,
@@ -345,6 +423,7 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
                     )
                 }
             )
+        }
 
 
         textToSpeechManager = TextToSpeechManager(carContext)
@@ -378,6 +457,7 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
                 carContext.checkSelfPermission(permission.READ_CONTACTS) == PackageManager.PERMISSION_GRANTED
 
         return if (hasLocationPermission && hasContactsPermission) {
+            if (useDeviceLocationManager)
                 deviceLocationManager.startLocationUpdates()
             navigationScreen
         } else {
@@ -452,6 +532,7 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
      * Handles route snapping, deviation detection for rerouting, and map updates.
      */
     fun updateLocation(location: Location) {
+        Log.d(TAG, "update location $location")
         val streetName = if (routeModel.isNavigating()) {
             routeModel.currentStep().street
         } else {
@@ -600,10 +681,13 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
      * Called when user starts navigation
      */
     override fun startNavigation() {
+        if (useDeviceLocationManager)
+            deviceLocationManager.stopLocationUpdates()
         Log.d(TAG, "startNavigation")
+        navigationService!!.startNavigation()
         surfaceRenderer.navigation = true
         surfaceRenderer.viewStyle = ViewStyle.VIEW
-        navigationManager.navigationStarted()
+        // navigationManager.navigationStarted()
         navigationManagerStarted = true
         if (autoDriveEnabled) {
             simulation.startSimulation(
@@ -622,9 +706,12 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
      */
     override fun stopNavigation() {
         Log.d(TAG, "stopNavigation")
+        if (useDeviceLocationManager)
+            deviceLocationManager.startLocationUpdates()
+        navigationService!!.stopNavigation()
         surfaceRenderer.navigation = false
         routeModel.stopNavigation()
-        navigationManager.navigationEnded()
+        //navigationManager.navigationEnded()
         if (autoDriveEnabled) {
             simulation.stopSimulation()
             autoDriveEnabled = false
@@ -635,11 +722,12 @@ class NavigationSession : CarSession(), NavigationListener, NavigationObserverCa
         navigationScreen.navigationType = NavigationType.VIEW
         if (notificationActive)
             notificationManager.stopNotificationService()
+        Log.d(TAG, "end stopNavigation")
     }
 
     override fun updateTrip(trip: Trip) {
         if (navigationManagerStarted) {
-            navigationManager.updateTrip(trip)
+            //navigationManager.updateTrip(trip)
         }
     }
 

common/car/src/main/java/com/kouros/navigation/car/SurfaceRenderer.kt

@@ -372,6 +372,7 @@ class SurfaceRenderer(
      * Uses car orientation sensor if available, otherwise falls back to location bearing.
      */
     fun updateLocation(location: Location, streetName: String) {
+        Log.d(TAG, "updateLocation Surface $location $streetName")
         synchronized(this) {
             street.value = streetName
             if (viewStyle == ViewStyle.VIEW || viewStyle == ViewStyle.PAN_VIEW) {

common/car/src/main/java/com/kouros/navigation/car/navigation/NavigationService.kt

@@ -0,0 +1,255 @@
+package com.kouros.navigation.car.navigation
+
+import android.Manifest
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Intent
+import android.location.Location
+import android.location.LocationManager
+import android.os.Binder
+import android.os.IBinder
+import android.os.SystemClock
+import android.util.Log
+import androidx.annotation.RequiresPermission
+import androidx.car.app.CarContext
+import androidx.car.app.CarToast
+import androidx.car.app.model.CarIcon
+import androidx.car.app.model.Distance
+import androidx.car.app.navigation.NavigationManager
+import androidx.car.app.navigation.NavigationManagerCallback
+import androidx.car.app.navigation.model.Destination
+import androidx.car.app.navigation.model.Step
+import androidx.car.app.navigation.model.TravelEstimate
+import com.kouros.navigation.car.DeviceLocationManagerService
+import com.kouros.navigation.data.tomtom.TomTomRepository
+import io.ticofab.androidgpxparser.parser.GPXParser
+import io.ticofab.androidgpxparser.parser.domain.Gpx
+import io.ticofab.androidgpxparser.parser.domain.TrackSegment
+import org.joda.time.DateTime
+
+
+class NavigationService : Service() {
+
+    val TAG: String = "NavigationService"
+
+    val DEEP_LINK_ACTION: String = ("com.kouros.navigation.car.navigation"
+            + ".NavigationDeepLinkAction")
+
+    val channelId: String = "NavigationServiceChannel"
+
+    /** The identifier for the navigation notification displayed for the foreground service.  */
+
+    val NAV_NOTIFICATION_ID: Int = 87356325
+
+    /** The identifier for the non-navigation notifications, such as a traffic accident warning.  */
+
+    val NOTIFICATION_ID: Int = 71653346
+
+    // Constants for location broadcast
+    val PACKAGE_NAME: String =
+        "androidx.car.app.sample.navigation.common.nav.navigationservice"
+
+    val EXTRA_STARTED_FROM_NOTIFICATION: String = PACKAGE_NAME + ".started_from_notification"
+
+    val CANCEL_ACTION: String = "CANCEL"
+
+    private var notificationManager: NotificationManager? = null
+    private var carContext: CarContext? = null
+
+    var autoDriveEnabled = false
+
+    val simulation = Simulation()
+
+    private lateinit var listener: Listener
+
+    // Model for managing route state and navigation logic for Android Auto
+    var routeModel = RouteCarModel()
+
+    // Manages device GPS location updates
+    lateinit var deviceLocationManager: DeviceLocationManagerService
+
+    private lateinit var navigationManager: NavigationManager
+    private var navigationManagerInitialized = false
+    var binder: IBinder = LocalBinder()
+
+
+    /** A listener for the navigation state changes.  */
+    interface Listener {
+        /** Callback called when the navigation state changes.  */
+        fun navigationStateChanged(
+            isNavigating: Boolean,
+            isRerouting: Boolean,
+            hasArrived: Boolean,
+            destinations: MutableList<Destination?>?,
+            steps: MutableList<Step>?,
+            nextDestinationTravelEstimate: TravelEstimate?,
+            nextStepRemainingDistance: Distance?,
+            shouldShowNextStep: Boolean,
+            shouldShowLanes: Boolean,
+            junctionImage: CarIcon?
+        )
+
+        fun updateServiceLocation(location: Location)
+    }
+
+    /**
+     * Class used for the client Binder. Since this service runs in the same process as its clients,
+     * we don't need to deal with IPC.
+     */
+    inner class LocalBinder : Binder() {
+        val service: NavigationService
+            get() = this@NavigationService
+    }
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+
+        return START_STICKY
+    }
+
+
+    override fun onCreate() {
+        Log.i(TAG, "In onCreate()");
+        createNotificationChannel();
+    }
+
+    override fun onBind(p0: Intent?): IBinder {
+        return binder
+    }
+
+    override fun onUnbind(intent: Intent): Boolean {
+        if (::deviceLocationManager.isInitialized) {
+            deviceLocationManager.stopLocationUpdates()
+        }
+        return true
+    }
+
+    override fun onDestroy() {
+        Log.i(TAG, "In onDestroy()");
+
+    }
+
+    private fun createNotificationChannel() {
+        val serviceChannel = NotificationChannel(
+            "CHANNEL_ID",
+            "Location Service Channel",
+            NotificationManager.IMPORTANCE_HIGH
+        )
+        val manager = getSystemService(NotificationManager::class.java)
+        manager.createNotificationChannel(serviceChannel)
+    }
+
+
+    /** Sets the [CarContext] to use while the service is connected.  */
+    @RequiresPermission(allOf = [Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION])
+    fun setCarContext(
+        carContext: CarContext,
+        listener: Listener
+    ) {
+        Log.d(TAG, "in setCarContext")
+        this.carContext = carContext
+        this.listener = listener
+        deviceLocationManager = DeviceLocationManagerService(
+            carContext = carContext,
+            onLocationUpdate = ::updateLocation,
+            onInitialLocation = { location ->
+                Log.d(TAG, "Initial location: $location")
+                updateLocation(location)
+            }
+        )
+
+        deviceLocationManager.startLocationUpdates()
+
+        navigationManagerInitialized = true
+        navigationManager =
+            carContext.getCarService(NavigationManager::class.java)
+        navigationManager.setNavigationManagerCallback(object : NavigationManagerCallback {
+            override fun onAutoDriveEnabled() {
+                Log.d(TAG, "onAutoDriveEnabled")
+                // Called when the app should simulate navigation (e.g., for testing)
+                deviceLocationManager.stopLocationUpdates()
+                autoDriveEnabled = true
+                simulation()
+                //startNavigation()
+                CarToast.makeText(carContext, "Auto drive enabled", CarToast.LENGTH_LONG)
+                    .show()
+            }
+
+            private fun simulation() {
+                simulation.gpxSimulation {
+                    listener.updateServiceLocation(it)
+                }
+            }
+
+            override fun onStopNavigation() {
+                // Called when the user stops navigation in the car screen
+                // Stop turn-by-turn logic and clean up
+                stopNavigation()
+                if (autoDriveEnabled) {
+                    deviceLocationManager.startLocationUpdates()
+                }
+            }
+        })
+
+
+
+        // Uncomment if navigating
+        // mNavigationManager.navigationStarted();
+    }
+
+    /** Clears the currently used {@link CarContext}. */
+    fun clearCarContext() {
+        Log.i(TAG, "clearContext");
+        carContext = null;
+        navigationManager.clearNavigationManagerCallback();
+    }
+
+    /** Starts navigation. */
+    fun startNavigation() {
+
+        Log.i(TAG, "Starting Navigation")
+        startService(Intent(applicationContext, NavigationService::class.java))
+        Log.i(TAG, "Starting foreground service")
+
+        listener.navigationStateChanged(
+            isNavigating = false,
+            isRerouting = true,
+            hasArrived = false,
+            destinations = null,
+            steps = null,
+            nextDestinationTravelEstimate = null,
+            nextStepRemainingDistance = null,
+            shouldShowNextStep = false,
+            shouldShowLanes = false,
+            junctionImage = null
+        )
+
+    }
+
+    /** Starts navigation. */
+    fun stopNavigation() {
+        if (autoDriveEnabled) {
+            autoDriveEnabled = false
+        }
+        if (navigationManagerInitialized)
+            navigationManager.navigationEnded()
+        listener.navigationStateChanged(
+            false,
+            isRerouting = false,
+            hasArrived = false,
+            destinations = null,
+            steps = null,
+            nextDestinationTravelEstimate = null,
+            nextStepRemainingDistance = null,
+            shouldShowNextStep = false,
+            shouldShowLanes = false,
+            junctionImage = null,
+        )
+        stopForeground(STOP_FOREGROUND_REMOVE)
+        stopSelf()
+    }
+
+    fun updateLocation(location: Location) {
+        listener.updateServiceLocation(location)
+    }
+}

common/car/src/main/java/com/kouros/navigation/car/navigation/Simulation.kt

@@ -3,8 +3,10 @@ package com.kouros.navigation.car.navigation
 import android.location.Location
 import android.location.LocationManager
 import android.os.SystemClock
+import android.util.Log
 import androidx.lifecycle.LifecycleCoroutineScope
 import com.kouros.data.BuildConfig
+import com.kouros.navigation.data.Constants.TAG
 import com.kouros.navigation.data.tomtom.TomTomRepository
 import io.ticofab.androidgpxparser.parser.GPXParser
 import io.ticofab.androidgpxparser.parser.domain.Gpx
@@ -27,8 +29,9 @@ class Simulation {
     ) {
         if (routeModel.navState.route.isRouteValid()) {
             if (BuildConfig.DEBUG) {
-                //gpxSimulation(routeModel, lifecycleScope, updateLocation)
-                currentSimulation(routeModel, lifecycleScope, updateLocation)
+                gpxSimulation(routeModel, lifecycleScope, updateLocation)
+                //gpxSimulation(updateLocation)
+                //currentSimulation(routeModel, lifecycleScope, updateLocation)
             } else {
                 currentSimulation(routeModel, lifecycleScope, updateLocation)
             }
@@ -87,7 +90,7 @@ class Simulation {
             simulationJob?.join()
         }
         simulationJob?.cancel()
-        simulationJob =lifecycleScope.launch() {
+        simulationJob = lifecycleScope.launch() {
             var lastLocation = Location(LocationManager.FUSED_PROVIDER)
             var curBearing = 0f
             val parser = GPXParser()
@@ -134,4 +137,62 @@ class Simulation {
     fun stopSimulation() {
         simulationJob?.cancel()
     }
+
+    fun gpxSimulation(
+        updateLocation: (Location) -> Unit
+    ) {
+        Runnable {
+            var route = ""
+            simulationJob?.cancel()
+            runBlocking {
+                simulationJob = launch(Dispatchers.IO) {
+                    route = TomTomRepository().fetchUrl(
+                        "https://kouros-online.de/vh.gpx",
+                        false
+                    )
+                }
+                simulationJob?.join()
+            }
+            simulationJob?.cancel()
+            var lastLocation = Location(LocationManager.FUSED_PROVIDER)
+            var curBearing = 0f
+            val parser = GPXParser()
+            val parsedGpx: Gpx? =
+                parser.parse(route.byteInputStream())
+            parsedGpx?.let {
+                val tracks = parsedGpx.tracks
+                tracks.forEach { tr ->
+                    val segments: MutableList<TrackSegment?>? = tr.trackSegments
+                    segments!!.forEach { seg ->
+                        var lastTime = DateTime.now()
+                        seg!!.trackPoints.forEach { p ->
+                            val ext = p.extensions
+                            var curSpeed = 0F
+                            if (ext != null) {
+                                curSpeed = ext.speed.toFloat()
+                            }
+                            val duration = p.time.millis - lastTime.millis
+                            val fakeLocation = Location(LocationManager.FUSED_PROVIDER).apply {
+                                latitude = p.latitude
+                                longitude = p.longitude
+                                speedAccuracyMetersPerSecond = 1.0f // ~1 m/s
+                                speed = curSpeed
+                                time = System.currentTimeMillis()
+                                elapsedRealtimeNanos = SystemClock.elapsedRealtimeNanos()
+                            }
+                            // Update your app's state as if a real GPS update occurred
+                            updateLocation(fakeLocation)
+                            // Wait before moving to the next point (e.g., every 1 second)
+                            if (duration > 100) {
+                                //   delay(duration / 4)
+                            }
+                            Thread.sleep(2000)
+                            lastTime = p.time
+                            lastLocation = fakeLocation
+                        }
+                    }
+                }
+            }
+        }.run()
+    }
 }

common/car/src/main/java/com/kouros/navigation/car/screen/NavigationScreen.kt

@@ -85,6 +85,7 @@ open class NavigationScreen(
 
     private var showAlternativeRoute = false
     val observerRecentPlaces = Observer<List<Place>> { newPlaces ->
+        Log.d(TAG, "RecentPlaces $newPlaces")
         recentPlaces.addAll(newPlaces)
         if (newPlaces.isNotEmpty() && !tripSuggestionCalled) {
             tripSuggestionCalled = true
@@ -99,6 +100,7 @@ open class NavigationScreen(
         }
 
         repository.tripSuggestionFlow.asLiveData().observe(this, Observer {
+            Log.d(TAG, "tripSuggestion $it")
             navigationViewModel.recentPlaces.observe(this, observerRecentPlaces)
             tripSuggestion = it
         })
@@ -519,7 +521,6 @@ open class NavigationScreen(
         this.shouldShowLanes = shouldShowLanes
         this.junctionImage = junctionImage
         this.backGroundColor = backGroundColor
-
         navigationType = NavigationType.NAVIGATION
         invalidate()
     }