Navigation Screen to Session, Remove NavigationService

app/src/main/java/com/kouros/navigation/ui/MainActivity.kt

@@ -43,6 +43,7 @@ import com.google.android.gms.location.LocationServices
 import com.kouros.data.R
 import com.kouros.navigation.MainApplication.Companion.navigationViewModel
 import com.kouros.navigation.car.TextToSpeechManager
+import com.kouros.navigation.car.navigation.NavigationService
 import com.kouros.navigation.data.Constants.DESTINATION_ARRIVAL_DISTANCE
 import com.kouros.navigation.data.Constants.INSTRUCTION_DISTANCE
 import com.kouros.navigation.data.Constants.TAG
@@ -79,6 +80,8 @@ import kotlin.time.Duration.Companion.seconds
 
 class MainActivity : ComponentActivity() {
 
+    var navigationService: NavigationService? = null
+
     var isBound: Boolean = false
     val routeData = MutableLiveData("")
     val routeModel = RouteModel()
@@ -99,6 +102,20 @@ class MainActivity : ComponentActivity() {
         }
     }
 
+    // Monitors the state of the connection to the navigation service.
+    private val serviceConnection: ServiceConnection = object : ServiceConnection {
+        override fun onServiceConnected(name: ComponentName?, service: IBinder?) {
+            val binder: NavigationService.LocalBinder = service as NavigationService.LocalBinder
+            navigationService = binder.service
+            isBound = true
+        }
+
+        override fun onServiceDisconnected(name: ComponentName?) {
+            navigationService = null
+            isBound = false
+        }
+    }
+
     val cameraPosition = MutableLiveData(
         CameraPosition(
             zoom = 15.0, target = Position(latitude = 48.1857475, longitude = 11.5793627)
@@ -151,6 +168,27 @@ class MainActivity : ComponentActivity() {
         }
     }
 
+    override fun onStart() {
+        super.onStart()
+        Log.i(TAG, "In onStart()")
+        bindService(
+            Intent(this, NavigationService::class.java),
+            serviceConnection,
+            BIND_AUTO_CREATE
+        )
+        requestPermissions(arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), 1)
+    }
+
+    override fun onStop() {
+        Log.i(TAG, "In onStop(). bound $isBound")
+        if (isBound) {
+            unbindService(serviceConnection)
+            isBound = false
+            navigationService = null
+        }
+        super.onStop()
+    }
+
     @OptIn(ExperimentalMaterial3Api::class)
     @Composable
     fun StartScreen(
@@ -318,6 +356,7 @@ class MainActivity : ComponentActivity() {
         routeModel.navState = routeModel.navState.copy(routingEngine = routingEngine)
         routeModel.startNavigation(newRoute)
         routeData.value = routeModel.curRoute.routeGeoJson
+        navigationService?.startNavigation()
     }
     fun stopNavigation(closeSheet: () -> Unit) {
         closeSheet()
@@ -325,6 +364,7 @@ class MainActivity : ComponentActivity() {
         getSettingsViewModel(applicationContext).onLastRouteChanged("")
         routeData.value = ""
         stepData.value = StepData("", "", 0.0, 0, 0, 0, 0.0)
+        navigationService?.stopNavigation()
     }
 
     fun textToSpeech() {