Android Auto: initial implementation

app/build.gradle

@@ -119,6 +119,9 @@ dependencies {
     implementation 'com.google.guava:guava:29.0-android'
     implementation 'com.github.pengrad:mapscaleview:1.6.0'
 
+    // Android Auto
+    googleImplementation 'com.google.android.libraries.car:car-app:1.0.0-beta.1'
+
     // AnyMaps
     def anyMapsVersion = '1f050d860f'
     implementation "com.github.johan12345.AnyMaps:anymaps-base:$anyMapsVersion"

app/src/google/AndroidManifest.xml

@@ -1,10 +1,40 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="net.vonforst.evmap">
 
+<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+
+    <uses-sdk tools:overrideLibrary="com.google.android.libraries.car.app" />
+
     <application>
-    <meta-data
-        android:name="com.google.android.geo.API_KEY"
-        android:value="@string/google_maps_key" />
+        <meta-data
+            android:name="com.google.android.geo.API_KEY"
+            android:value="@string/google_maps_key" />
+
+        <meta-data
+            android:name="com.google.android.gms.car.application"
+            android:resource="@xml/automotive_app_desc" />
+
+        <meta-data
+            android:name="com.google.android.libraries.car.app.theme"
+            android:resource="@style/CarAppTheme" />
+
+        <service
+            android:name=".auto.CarAppService"
+            android:label="@string/app_name"
+            android:icon="@mipmap/ic_launcher"
+            android:exported="true">
+            <intent-filter>
+                <action
+                    android:name="com.google.android.car.action.CAR_APP"
+                    android:category="com.google.android.car.category.CHARGING" />
+            </intent-filter>
+        </service>
+
+        <service
+            android:name=".auto.CarLocationService"
+            android:foregroundServiceType="location"
+            android:enabled="true" />
     </application>
 </manifest>

app/src/google/java/net/vonforst/evmap/auto/CarAppService.kt

@@ -0,0 +1,246 @@
+package net.vonforst.evmap.auto
+
+import android.content.*
+import android.location.Location
+import android.os.IBinder
+import android.text.SpannableStringBuilder
+import android.text.Spanned
+import androidx.core.content.ContextCompat
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleObserver
+import androidx.lifecycle.OnLifecycleEvent
+import androidx.lifecycle.lifecycleScope
+import androidx.localbroadcastmanager.content.LocalBroadcastManager
+import com.google.android.libraries.car.app.CarContext
+import com.google.android.libraries.car.app.Screen
+import com.google.android.libraries.car.app.model.*
+import com.google.android.libraries.car.app.model.Distance.UNIT_KILOMETERS
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.launch
+import net.vonforst.evmap.R
+import net.vonforst.evmap.api.availability.ChargeLocationStatus
+import net.vonforst.evmap.api.availability.ChargepointStatus
+import net.vonforst.evmap.api.availability.getAvailability
+import net.vonforst.evmap.api.goingelectric.ChargeLocation
+import net.vonforst.evmap.api.goingelectric.GoingElectricApi
+import net.vonforst.evmap.ui.availabilityText
+import net.vonforst.evmap.ui.getMarkerTint
+import net.vonforst.evmap.utils.distanceBetween
+import java.time.Duration
+import java.time.ZonedDateTime
+import kotlin.math.roundToInt
+
+
+class CarAppService : com.google.android.libraries.car.app.CarAppService(), LifecycleObserver {
+    private lateinit var mapScreen: MapScreen
+    private var locationService: CarLocationService? = null
+
+    private val serviceConnection = object : ServiceConnection {
+        override fun onServiceConnected(name: ComponentName, ibinder: IBinder) {
+            val binder: CarLocationService.LocalBinder = ibinder as CarLocationService.LocalBinder
+            locationService = binder.service
+            locationService?.requestLocationUpdates()
+        }
+
+        override fun onServiceDisconnected(name: ComponentName?) {
+            locationService = null
+        }
+    }
+
+    private val locationReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context, intent: Intent) {
+            val location = intent.getParcelableExtra(CarLocationService.EXTRA_LOCATION) as Location?
+            if (location != null) {
+                mapScreen.updateLocation(location)
+            }
+        }
+    }
+
+    override fun onCreate() {
+        mapScreen = MapScreen(carContext)
+        lifecycle.addObserver(this)
+    }
+
+    override fun onCreateScreen(intent: Intent): Screen {
+        return mapScreen
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_START)
+    private fun bindLocationService() {
+        bindService(
+            Intent(this, CarLocationService::class.java),
+            serviceConnection,
+            Context.BIND_AUTO_CREATE
+        )
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
+    private fun unbindLocationService() {
+        locationService?.removeLocationUpdates()
+        unbindService(serviceConnection)
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
+    private fun registerBroadcastReceiver() {
+        LocalBroadcastManager.getInstance(this).registerReceiver(
+            locationReceiver,
+            IntentFilter(CarLocationService.ACTION_BROADCAST)
+        );
+    }
+
+    @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
+    private fun unregisterBroadcastReceiver() {
+        LocalBroadcastManager.getInstance(this).unregisterReceiver(locationReceiver)
+    }
+}
+
+class MapScreen(ctx: CarContext) : Screen(ctx) {
+    private var location: Location? = null
+    private var lastUpdateLocation: Location? = null
+    private var chargers: List<ChargeLocation>? = null
+    private val api by lazy {
+        GoingElectricApi.create(ctx.getString(R.string.goingelectric_key), context = ctx)
+    }
+    private val searchRadius = 5 // kilometers
+    private val updateThreshold = 50 // meters
+    private val availabilityUpdateThreshold = Duration.ofMinutes(1)
+    private var availabilities: MutableMap<Long, Pair<ZonedDateTime, ChargeLocationStatus>> =
+        HashMap()
+    private val maxRows = 6
+
+    override fun getTemplate(): Template {
+        return PlaceListMapTemplate.builder().apply {
+            setTitle("EVMap")
+            location?.let {
+                setAnchor(Place.builder(LatLng.create(it)).build())
+            }
+            chargers?.take(maxRows)?.let { chargerList ->
+                val builder = ItemList.Builder()
+                chargerList.forEach { charger ->
+                    builder.addItem(formatCharger(charger))
+                }
+                builder.setNoItemsMessage(carContext.getString(R.string.auto_no_chargers_found))
+                setItemList(builder.build())
+            }
+            if (chargers == null || location == null) setIsLoading(true)
+            setCurrentLocationEnabled(true)
+            build()
+        }.build()
+    }
+
+    private fun formatCharger(charger: ChargeLocation): Row {
+        /*val icon = CarIcon.builder(IconCompat.createWithResource(carContext, R.drawable.ic_map_marker_charging))
+            .setTint(CarColor.BLUE)
+            .build()*/
+        val color = ContextCompat.getColor(carContext, getMarkerTint(charger))
+        val place = Place.builder(LatLng.create(charger.coordinates.lat, charger.coordinates.lng))
+            .setMarker(
+                PlaceMarker.builder()
+                    .setColor(CarColor.createCustom(color, color))
+                    .build()
+            )
+            .build()
+
+        return Row.builder().apply {
+            setTitle(charger.name)
+            val text = SpannableStringBuilder()
+
+            // distance
+            location?.let {
+                val distance = distanceBetween(
+                    it.latitude, it.longitude,
+                    charger.coordinates.lat, charger.coordinates.lng
+                ) / 1000
+                text.append(
+                    "distance",
+                    DistanceSpan.create(Distance.create(distance, UNIT_KILOMETERS)),
+                    Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
+                )
+            }
+
+            // power
+            if (text.isNotEmpty()) text.append(" · ")
+            text.append("${charger.maxPower.roundToInt()} kW")
+
+            // availability
+            availabilities[charger.id]?.second?.let { av ->
+                val status = av.status.values.flatten()
+                val available = availabilityText(status)
+                val total = charger.chargepoints.sumBy { it.count }
+
+                if (text.isNotEmpty()) text.append(" · ")
+                text.append(
+                    "$available/$total",
+                    ForegroundCarColorSpan.create(carAvailabilityColor(status)),
+                    Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
+                )
+            }
+
+            addText(text)
+            setMetadata(Metadata.ofPlace(place))
+        }.build()
+    }
+
+    fun updateLocation(location: Location) {
+        this.location = location
+
+        if (lastUpdateLocation == null) invalidate()
+
+        if (lastUpdateLocation == null ||
+            location.distanceTo(lastUpdateLocation) > updateThreshold
+        ) {
+            lastUpdateLocation = location
+
+            // update displayed chargers
+            lifecycleScope.launch {
+                // load chargers
+                val response = api.getChargepointsRadius(
+                    location.latitude,
+                    location.longitude,
+                    searchRadius,
+                    zoom = 16f
+                )
+                chargers =
+                    response.body()?.chargelocations?.filterIsInstance(ChargeLocation::class.java)
+
+                // remove outdated availabilities
+                availabilities = availabilities.filter {
+                    Duration.between(
+                        it.value.first,
+                        ZonedDateTime.now()
+                    ) > availabilityUpdateThreshold
+                }.toMutableMap()
+
+                // update availabilities
+                chargers?.take(maxRows)?.map {
+                    lifecycleScope.async {
+                        // update only if not yet stored
+                        if (!availabilities.containsKey(it.id)) {
+                            val date = ZonedDateTime.now()
+                            val availability = getAvailability(it).data
+                            if (availability != null) {
+                                availabilities[it.id] = date to availability
+                            }
+                        }
+                    }
+                }?.awaitAll()
+
+                invalidate()
+            }
+        }
+    }
+}
+
+fun carAvailabilityColor(status: List<ChargepointStatus>): CarColor {
+    val unknown = status.any { it == ChargepointStatus.UNKNOWN }
+    val available = status.count { it == ChargepointStatus.AVAILABLE }
+
+    return if (unknown) {
+        CarColor.DEFAULT
+    } else if (available > 0) {
+        CarColor.GREEN
+    } else {
+        CarColor.RED
+    }
+}

app/src/google/java/net/vonforst/evmap/auto/CarLocationService.kt

@@ -0,0 +1,163 @@
+package net.vonforst.evmap.auto
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Intent
+import android.location.Location
+import android.os.*
+import android.util.Log
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import androidx.localbroadcastmanager.content.LocalBroadcastManager
+import com.google.android.gms.location.*
+import net.vonforst.evmap.BuildConfig
+import net.vonforst.evmap.R
+
+
+class CarLocationService : Service() {
+    private lateinit var serviceHandler: Handler
+    private lateinit var locationRequest: LocationRequest
+    private lateinit var notificationManager: NotificationManager
+    private lateinit var locationCallback: LocationCallback
+    private lateinit var fusedLocationClient: FusedLocationProviderClient
+    private val binder: IBinder = LocalBinder(this)
+    private var location: Location? = null
+
+    private val UPDATE_INTERVAL_IN_MILLISECONDS = 10000L
+    private val FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS = UPDATE_INTERVAL_IN_MILLISECONDS / 2
+
+    private val CHANNEL_ID = "car_location"
+    private val NOTIFICATION_ID = 1000
+    private val TAG = "CarLocationService"
+
+    companion object {
+        const val ACTION_BROADCAST: String = BuildConfig.APPLICATION_ID + ".car_location_broadcast"
+        const val EXTRA_LOCATION: String = BuildConfig.APPLICATION_ID + ".location"
+    }
+
+    override fun onCreate() {
+        fusedLocationClient = LocationServices.getFusedLocationProviderClient(this)
+        locationCallback = object : LocationCallback() {
+            override fun onLocationResult(locationResult: LocationResult) {
+                super.onLocationResult(locationResult)
+                onNewLocation(locationResult.lastLocation)
+            }
+        }
+        createLocationRequest()
+        getLastLocation()
+        val handlerThread = HandlerThread(TAG)
+        handlerThread.start()
+        serviceHandler = Handler(handlerThread.looper)
+        notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
+
+        // Android O requires a Notification Channel.
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val name: CharSequence = getString(R.string.app_name)
+            // Create the channel for the notification
+            val mChannel =
+                NotificationChannel(CHANNEL_ID, name, NotificationManager.IMPORTANCE_DEFAULT)
+
+            // Set the Notification Channel for the Notification Manager.
+            notificationManager.createNotificationChannel(mChannel)
+        }
+
+        startForeground(NOTIFICATION_ID, getNotification())
+    }
+
+    /**
+     * Returns the [NotificationCompat] used as part of the foreground service.
+     */
+    private fun getNotification(): Notification {
+        val builder: NotificationCompat.Builder = NotificationCompat.Builder(this, CHANNEL_ID)
+            .setContentText(getString(R.string.auto_location_service))
+            .setContentTitle(getString(R.string.app_name))
+            .setOngoing(true)
+            .setPriority(NotificationManagerCompat.IMPORTANCE_HIGH)
+            .setSmallIcon(R.mipmap.ic_launcher)
+            .setTicker(getString(R.string.auto_location_service))
+            .setWhen(System.currentTimeMillis())
+
+        return builder.build()
+    }
+
+    override fun onBind(intent: Intent?): IBinder {
+        return binder
+    }
+
+    private fun createLocationRequest() {
+        locationRequest = LocationRequest()
+        locationRequest.interval = UPDATE_INTERVAL_IN_MILLISECONDS
+        locationRequest.fastestInterval = FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS
+        locationRequest.priority = LocationRequest.PRIORITY_HIGH_ACCURACY
+    }
+
+    private fun onNewLocation(location: Location) {
+        Log.i(TAG, "New location: $location")
+        this.location = location
+
+        // Notify anyone listening for broadcasts about the new location.
+        val intent = Intent(ACTION_BROADCAST)
+        intent.putExtra(EXTRA_LOCATION, location)
+        LocalBroadcastManager.getInstance(applicationContext).sendBroadcast(intent)
+    }
+
+    private fun getLastLocation() {
+        try {
+            fusedLocationClient.lastLocation
+                .addOnCompleteListener { task ->
+                    if (task.isSuccessful && task.result != null) {
+                        location = task.result
+                    } else {
+                        Log.w(TAG, "Failed to get location.")
+                    }
+                }
+        } catch (unlikely: SecurityException) {
+            Log.e(TAG, "Lost location permission.$unlikely")
+        }
+    }
+
+    /**
+     * Makes a request for location updates. Note that in this sample we merely log the
+     * [SecurityException].
+     */
+    fun requestLocationUpdates() {
+        Log.i(TAG, "Requesting location updates")
+        startService(Intent(applicationContext, CarLocationService::class.java))
+        try {
+            fusedLocationClient.requestLocationUpdates(
+                locationRequest,
+                locationCallback, Looper.myLooper()
+            )
+        } catch (unlikely: SecurityException) {
+            Log.e(TAG, "Lost location permission. Could not request updates. $unlikely")
+        }
+    }
+
+    /**
+     * Removes location updates. Note that in this sample we merely log the
+     * [SecurityException].
+     */
+    fun removeLocationUpdates() {
+        Log.i(TAG, "Removing location updates")
+        try {
+            fusedLocationClient.removeLocationUpdates(locationCallback)
+            stopSelf()
+        } catch (unlikely: SecurityException) {
+            Log.e(TAG, "Lost location permission. Could not remove updates. $unlikely")
+        }
+    }
+
+    override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int {
+        Log.i(TAG, "Service started")
+        // Tells the system to not try to recreate the service after it has been killed.
+        return START_NOT_STICKY
+    }
+
+    override fun onDestroy() {
+        serviceHandler.removeCallbacksAndMessages(null)
+    }
+
+    class LocalBinder(val service: CarLocationService) : Binder()
+}

app/src/google/res/values-de/values.xml

@@ -5,4 +5,6 @@
         <item>OpenStreetMap (Mapbox)</item>
     </string-array>
     <string name="donations_info" formatted="false">Findest du EVMap nützlich? Unterstütze die Weiterentwicklung der App mit einer Spende an den Entwickler.\n\nGoogle zieht von der Spende 30% Gebühren ab.</string>
+    <string name="auto_location_service">EVMap läuft unter Android Auto und nutzt dafür deinen Standort.</string>
+    <string name="auto_no_chargers_found">Keine Ladestationen in der Nähe gefunden</string>
 </resources>

app/src/google/res/values/styles.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="CarAppTheme">
+        <item name="carColorPrimary">@color/colorPrimary</item>
+        <item name="carColorPrimaryDark">@color/colorPrimaryVariant</item>
+        <item name="carColorSecondary">@color/colorSecondary</item>
+        <item name="carColorSecondaryDark">@color/colorSecondaryVariant</item>
+    </style>
+</resources>

app/src/google/res/values/values.xml

@@ -10,4 +10,6 @@
     </string-array>
     <string name="pref_map_provider_default" translatable="false">google</string>
     <string name="donations_info" formatted="false">Do you find EVMap useful? Support its development by sending a donation to the developer.\n\nGoogle takes 30% off every donation.</string>
+    <string name="auto_location_service">EVMap is running on Android Auto and using your location.</string>
+    <string name="auto_no_chargers_found">No nearby chargers found</string>
 </resources>

app/src/google/res/xml/automotive_app_desc.xml

@@ -0,0 +1,5 @@
+<automotiveApp xmlns:tools="http://schemas.android.com/tools">
+    <uses
+        name="template"
+        tools:ignore="InvalidUsesTagAttribute" />
+</automotiveApp>

app/src/main/AndroidManifest.xml

@@ -54,6 +54,7 @@
                 <category android:name="android.intent.category.BROWSABLE" />
             </intent-filter>
         </activity>
+
     </application>
 
 </manifest>

app/src/main/java/net/vonforst/evmap/api/Utils.kt

@@ -37,28 +37,4 @@ suspend fun Call.await(): Response {
             }
         }
     }
-}
-
-const val earthRadiusKm: Double = 6372.8
-
-/**
- * Calculates the distance between two points on Earth in meters.
- * Latitude and longitude should be given in degrees.
- */
-fun distanceBetween(
-    startLatitude: Double, startLongitude: Double,
-    endLatitude: Double, endLongitude: Double
-): Double {
-    // see https://rosettacode.org/wiki/Haversine_formula#Java
-    val dLat = Math.toRadians(endLatitude - startLatitude);
-    val dLon = Math.toRadians(endLongitude - startLongitude);
-    val originLat = Math.toRadians(startLatitude);
-    val destinationLat = Math.toRadians(endLatitude);
-
-    val a = Math.pow(Math.sin(dLat / 2), 2.toDouble()) + Math.pow(
-        Math.sin(dLon / 2),
-        2.toDouble()
-    ) * Math.cos(originLat) * Math.cos(destinationLat);
-    val c = 2 * Math.asin(Math.sqrt(a));
-    return earthRadiusKm * c * 1000;
 }

app/src/main/java/net/vonforst/evmap/api/availability/NewMotionAvailabilityDetector.kt

@@ -1,9 +1,9 @@
 package net.vonforst.evmap.api.availability
 
 import com.squareup.moshi.JsonClass
-import net.vonforst.evmap.api.distanceBetween
 import net.vonforst.evmap.api.goingelectric.ChargeLocation
 import net.vonforst.evmap.api.goingelectric.Chargepoint
+import net.vonforst.evmap.utils.distanceBetween
 import okhttp3.OkHttpClient
 import retrofit2.Retrofit
 import retrofit2.converter.moshi.MoshiConverterFactory

app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricApi.kt

@@ -16,7 +16,7 @@ import retrofit2.http.Query
 interface GoingElectricApi {
     @GET("chargepoints/")
     suspend fun getChargepoints(
-        @Query("sw_lat") swlat: Double, @Query("sw_lng") sw_lng: Double,
+        @Query("sw_lat") sw_lat: Double, @Query("sw_lng") sw_lng: Double,
         @Query("ne_lat") ne_lat: Double, @Query("ne_lng") ne_lng: Double,
         @Query("zoom") zoom: Float,
         @Query("clustering") clustering: Boolean = false,
@@ -34,6 +34,27 @@ interface GoingElectricApi {
         @Query("exclude_faults") excludeFaults: Boolean = false
     ): Response<ChargepointList>
 
+    @GET("chargepoints/")
+    suspend fun getChargepointsRadius(
+        @Query("lat") lat: Double, @Query("lng") lng: Double,
+        @Query("radius") radius: Int,
+        @Query("zoom") zoom: Float,
+        @Query("orderby") orderby: String = "distance",
+        @Query("clustering") clustering: Boolean = false,
+        @Query("cluster_distance") clusterDistance: Int? = null,
+        @Query("freecharging") freecharging: Boolean = false,
+        @Query("freeparking") freeparking: Boolean = false,
+        @Query("min_power") minPower: Int = 0,
+        @Query("plugs") plugs: String? = null,
+        @Query("chargecards") chargecards: String? = null,
+        @Query("networks") networks: String? = null,
+        @Query("categories") categories: String? = null,
+        @Query("startkey") startkey: Int? = null,
+        @Query("open_twentyfourseven") open247: Boolean = false,
+        @Query("barrierfree") barrierfree: Boolean = false,
+        @Query("exclude_faults") excludeFaults: Boolean = false
+    ): Response<ChargepointList>
+
     @GET("chargepoints/")
     fun getChargepointDetail(@Query("ge_id") id: Long): Call<ChargepointList>
 

app/src/main/java/net/vonforst/evmap/ui/MarkerUtils.kt

@@ -12,7 +12,7 @@ import kotlin.math.max
 
 fun getMarkerTint(
     charger: ChargeLocation,
-    connectors: Set<String>?
+    connectors: Set<String>? = null
 ): Int = when {
     charger.maxPower(connectors) >= 100 -> R.color.charger_100kw
     charger.maxPower(connectors) >= 43 -> R.color.charger_43kw

app/src/main/java/net/vonforst/evmap/utils/LocationUtils.kt

@@ -0,0 +1,34 @@
+package net.vonforst.evmap.utils
+
+import android.location.Location
+import kotlin.math.*
+
+/**
+ * Adds a certain distance in meters to a location. Approximate calculation.
+ */
+fun Location.plusMeters(dx: Double, dy: Double): Pair<Double, Double> {
+    val lat = this.latitude + (180 / Math.PI) * (dx / 6378137.0)
+    val lon = this.longitude + (180 / Math.PI) * (dy / 6378137.0) / cos(Math.toRadians(lat))
+    return Pair(lat, lon)
+}
+
+const val earthRadiusM = 6378137.0
+
+/**
+ * Calculates the distance between two points on Earth in meters.
+ * Latitude and longitude should be given in degrees.
+ */
+fun distanceBetween(
+    startLatitude: Double, startLongitude: Double,
+    endLatitude: Double, endLongitude: Double
+): Double {
+    // see https://rosettacode.org/wiki/Haversine_formula#Java
+    val dLat = Math.toRadians(endLatitude - startLatitude)
+    val dLon = Math.toRadians(endLongitude - startLongitude)
+    val originLat = Math.toRadians(startLatitude)
+    val destinationLat = Math.toRadians(endLatitude)
+
+    val a = sin(dLat / 2).pow(2.0) + sin(dLon / 2).pow(2.0) * cos(originLat) * cos(destinationLat)
+    val c = 2 * asin(sqrt(a))
+    return earthRadiusM * c
+}

app/src/main/java/net/vonforst/evmap/viewmodel/FavoritesViewModel.kt

@@ -10,10 +10,10 @@ import net.vonforst.evmap.adapter.Equatable
 import net.vonforst.evmap.api.availability.ChargeLocationStatus
 import net.vonforst.evmap.api.availability.ChargepointStatus
 import net.vonforst.evmap.api.availability.getAvailability
-import net.vonforst.evmap.api.distanceBetween
 import net.vonforst.evmap.api.goingelectric.ChargeLocation
 import net.vonforst.evmap.api.goingelectric.GoingElectricApi
 import net.vonforst.evmap.storage.AppDatabase
+import net.vonforst.evmap.utils.distanceBetween
 
 class FavoritesViewModel(application: Application, geApiKey: String) :
     AndroidViewModel(application) {

app/src/main/java/net/vonforst/evmap/viewmodel/MapViewModel.kt

@@ -9,10 +9,10 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import net.vonforst.evmap.api.availability.ChargeLocationStatus
 import net.vonforst.evmap.api.availability.getAvailability
-import net.vonforst.evmap.api.distanceBetween
 import net.vonforst.evmap.api.goingelectric.*
 import net.vonforst.evmap.storage.*
 import net.vonforst.evmap.ui.cluster
+import net.vonforst.evmap.utils.distanceBetween
 import retrofit2.Call
 import retrofit2.Callback
 import retrofit2.Response

app/src/test/java/net/vonforst/evmap/api/UtilsTest.kt

@@ -1,12 +0,0 @@
-package net.vonforst.evmap.api
-
-import org.junit.Assert.assertEquals
-import org.junit.Test
-
-
-class UtilsTest {
-    @Test
-    fun testDistanceBetween() {
-        assertEquals(129412.71, distanceBetween(54.0, 9.0, 53.0, 8.0), 0.01)
-    }
-}

app/src/test/java/net/vonforst/evmap/utils/LocationUtilsTest.kt

@@ -0,0 +1,12 @@
+package net.vonforst.evmap.utils
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+
+class LocationUtilsTest {
+    @Test
+    fun testDistanceBetween() {
+        assertEquals(129521.08, distanceBetween(54.0, 9.0, 53.0, 8.0), 0.01)
+    }
+}