Как я могу использовать Google Navigation SDK в приложении Android Kotlin для реализации фонового отслеживания маршрутов ⇐ Android

[Anonymous]

Как использовать Google Navigation SDK в приложении Android Kotlin для реализации фонового отслеживания маршрутов без пользовательского интерфейса? Я хочу получить маршрут и путевые точки, начать отслеживать поездку в фоновом режиме и получить доступ к такой информации, как оставшееся время до следующей путевой точки и другие функции навигации, но без пользовательского интерфейса, и код не понадобится в MainActivity, но его класс можно вызвать там. для инициализации навигационного SDK.
Я пытался следовать коду в руководстве Google Navigation Ask, но фоновая активность по-прежнему не работает, даже разделение функций инициализации SDK от основной активности вызывает ошибки

вот мой код

import android.Manifest
import android.content.Context
import android.content.pm.PackageManager
import android.os.Build
import android.os.Looper
import android.widget.Toast
import androidx.core.content.ContextCompat
import com.google.android.gms.maps.GoogleMap
import com.google.android.gms.maps.model.LatLng
import com.google.android.libraries.navigation.NavigationApi
import com.google.android.libraries.navigation.NavigationView
import com.google.android.libraries.navigation.Navigator
import com.google.android.libraries.navigation.SimulationOptions
import com.google.android.libraries.navigation.Waypoint
import java.util.concurrent.TimeUnit

class NavigationManager(
private val context: Context,
private val navView: NavigationView,
private val onNavigatorReady: (Navigator) -> Unit
) {
private var mNavigator: Navigator? = null
private var arrivalListener: Navigator.ArrivalListener? = null
private var routeChangedListener: Navigator.RouteChangedListener? = null
private var navigatorScope: InitializedNavScope? = null
private var pendingNavActions = mutableListOf()

/**
* Initializes the Navigation API and sets up necessary listeners.
*/
fun initializeNavigation() {
// Ensure necessary permissions are granted
if (!checkPermissionGranted(Manifest.permission.ACCESS_FINE_LOCATION)) {
Toast.makeText(context, "Location permission is required", Toast.LENGTH_LONG).show()
return
}

// Initialize the Navigation SDK
NavigationApi.getNavigator(context, object : NavigationApi.NavigatorListener {
override fun onNavigatorReady(navigator: Navigator) {
val scope = InitializedNavScope(navigator)
navigatorScope = scope
pendingNavActions.forEach { block -> scope.block() }
pendingNavActions.clear()

mNavigator = navigator

// Set up navigation listeners
registerNavigationListeners()

// Call the callback when the navigator is ready
onNavigatorReady(navigator)

// Set up the map to follow the user's location
navView.getMapAsync { googleMap ->
googleMap.followMyLocation(GoogleMap.CameraPerspective.TILTED)
}

// Simulate vehicle location in debug mode
if (BuildConfig.DEBUG) {
mNavigator?.simulator?.setUserLocation(MainActivity.startLocation)
}

// Initialize the first navigation (e.g., to Trafalgar Square)
navigateToPlace(MainActivity.TRAFALGAR_SQUARE)
}

override fun onError(errorCode: Int) {
handleNavigatorError(errorCode)
}
})
}

private fun checkPermissionGranted(permissionToCheck: String): Boolean =
ContextCompat.checkSelfPermission(context, permissionToCheck) == PackageManager.PERMISSION_GRANTED

private fun navigateToPlace(placeId: String) {
val waypoint = try {
Waypoint.builder().setPlaceIdString(placeId).build()
} catch (e: Waypoint.UnsupportedPlaceIdException) {
Toast.makeText(context, "Unsupported place ID", Toast.LENGTH_SHORT).show()
return
}

withNavigatorAsync {
val pendingRoute = mNavigator?.setDestination(waypoint)
pendingRoute?.setOnResultListener { code ->
when (code) {
Navigator.RouteStatus.OK -> startGuidance()
else -> Toast.makeText(context, "Error starting guidance: $code", Toast.LENGTH_SHORT).show()
}
}
}
}

private fun startGuidance() {
mNavigator?.setAudioGuidance(Navigator.AudioGuidance.VOICE_ALERTS_AND_GUIDANCE)
if (BuildConfig.DEBUG) {
mNavigator?.simulator?.simulateLocationsAlongExistingRoute(
SimulationOptions().speedMultiplier(5f)
)
}
mNavigator?.startGuidance()
}

private fun registerNavigationListeners() {
withNavigatorAsync {
arrivalListener = Navigator.ArrivalListener {
Toast.makeText(context, "User has arrived at the destination!", Toast.LENGTH_SHORT).show()
mNavigator?.clearDestinations()
if (BuildConfig.DEBUG) {
mNavigator?.simulator?.unsetUserLocation()
}
}
mNavigator?.addArrivalListener(arrivalListener)

routeChangedListener = Navigator.RouteChangedListener {
Toast.makeText(context, "Route changed", Toast.LENGTH_SHORT).show()
}
mNavigator?.addRouteChangedListener(routeChangedListener)
}
}

private fun withNavigatorAsync(block: InitializedNavRunnable) {
val navigatorScope = navigatorScope
if (navigatorScope != null) {
navigatorScope.block()
} else {
pendingNavActions.add(block)
}
}

private fun handleNavigatorError(errorCode: Int) {
when (errorCode) {
NavigationApi.ErrorCode.NOT_AUTHORIZED -> {
Toast.makeText(context, "Error: API key is not authorized", Toast.LENGTH_LONG).show()
}
NavigationApi.ErrorCode.TERMS_NOT_ACCEPTED -> {
Toast.makeText(context, "Error: Terms not accepted", Toast.LENGTH_LONG).show()
}
else -> {
Toast.makeText(context, "Error: $errorCode", Toast.LENGTH_LONG).show()
}
}
}

fun onStop() {
mNavigator?.clearDestinations()
mNavigator?.cleanup()
arrivalListener?.let { mNavigator?.removeArrivalListener(it) }
routeChangedListener?.let { mNavigator?.removeRouteChangedListener(it) }
}

fun onSaveInstanceState(savedInstanceState: Bundle) {
navView.onSaveInstanceState(savedInstanceState)
}

fun onStart() {
navView.onStart()
}

fun onResume() {
navView.onResume()
}

fun onPause() {
navView.onPause()
}

fun onStop() {
navView.onStop()
}

fun onDestroy() {
navView.onDestroy()
onStop() // Clean up navigator listeners and resources
}
}
``


Подробнее здесь: https://stackoverflow.com/questions/792 ... plement-ba