diff --git a/app/src/google/java/net/vonforst/evmap/auto/ChargepriceScreen.kt b/app/src/google/java/net/vonforst/evmap/auto/ChargepriceScreen.kt
index 2cd77fa9..27266b7a 100644
--- a/app/src/google/java/net/vonforst/evmap/auto/ChargepriceScreen.kt
+++ b/app/src/google/java/net/vonforst/evmap/auto/ChargepriceScreen.kt
@@ -206,7 +206,7 @@ class ChargepriceScreen(ctx: CarContext, val charger: ChargeLocation) : Screen(c
     }
 
     private fun loadPrices(model: Model?) {
-        val dataAdapter = ChargepriceApi.getDataAdapter(charger) ?: return
+        val dataAdapter = ChargepriceApi.getDataAdapter(charger)
         val manufacturer = model?.manufacturer?.value
         val modelName = getVehicleModel(model?.manufacturer?.value, model?.name?.value)
         lifecycleScope.launch {
diff --git a/app/src/google/java/net/vonforst/evmap/auto/MapScreen.kt b/app/src/google/java/net/vonforst/evmap/auto/MapScreen.kt
index 7405745d..4403339c 100644
--- a/app/src/google/java/net/vonforst/evmap/auto/MapScreen.kt
+++ b/app/src/google/java/net/vonforst/evmap/auto/MapScreen.kt
@@ -335,7 +335,7 @@ class MapScreen(ctx: CarContext, val session: EVMapSession) :
             availabilities[charger.id]?.second?.let { av ->
                 val status = av.status.values.flatten()
                 val available = availabilityText(status)
-                val total = charger.chargepoints.sumBy { it.count }
+                val total = charger.chargepoints.sumOf { it.count }
 
                 if (text.isNotEmpty()) text.append(" · ")
                 text.append(
@@ -476,7 +476,7 @@ class MapScreen(ctx: CarContext, val session: EVMapSession) :
         val location = location
         val heading = heading?.orientations?.value?.get(0)
             ?: if (location?.hasBearing() == true) location.bearing else null
-        return heading?.let { heading ->
+        return heading?.let {
             if (!prefs.showChargersAheadAndroidAuto) return@let chargers
 
             chargers?.filter {
diff --git a/app/src/google/java/net/vonforst/evmap/auto/PermissionScreen.kt b/app/src/google/java/net/vonforst/evmap/auto/PermissionScreen.kt
index 46c454de..53d97f13 100644
--- a/app/src/google/java/net/vonforst/evmap/auto/PermissionScreen.kt
+++ b/app/src/google/java/net/vonforst/evmap/auto/PermissionScreen.kt
@@ -46,7 +46,7 @@ class PermissionScreen(
     }
 
     private fun requestPermissions() {
-        carContext.requestPermissions(permissions) { granted, rejected ->
+        carContext.requestPermissions(permissions) { granted, _ ->
             if (granted.containsAll(permissions)) {
                 screenManager.pop()
             } else {
diff --git a/app/src/google/java/net/vonforst/evmap/auto/SettingsScreens.kt b/app/src/google/java/net/vonforst/evmap/auto/SettingsScreens.kt
index 4af50031..2dee75ee 100644
--- a/app/src/google/java/net/vonforst/evmap/auto/SettingsScreens.kt
+++ b/app/src/google/java/net/vonforst/evmap/auto/SettingsScreens.kt
@@ -15,10 +15,7 @@ import androidx.car.app.model.*
 import androidx.core.graphics.drawable.IconCompat
 import androidx.lifecycle.lifecycleScope
 import kotlinx.coroutines.launch
-import net.vonforst.evmap.BuildConfig
-import net.vonforst.evmap.EXTRA_DONATE
-import net.vonforst.evmap.MapsActivity
-import net.vonforst.evmap.R
+import net.vonforst.evmap.*
 import net.vonforst.evmap.api.chargeprice.ChargepriceApi
 import net.vonforst.evmap.api.chargeprice.ChargepriceCar
 import net.vonforst.evmap.api.chargeprice.ChargepriceTariff
@@ -718,7 +715,7 @@ class DeveloperOptionsScreen(ctx: CarContext) : Screen(ctx) {
                         val hostPackage = carContext.hostInfo?.packageName
                         val hostVersion = hostPackage?.let {
                             try {
-                                carContext.packageManager.getPackageInfo(it, 0).versionName
+                                carContext.packageManager.getPackageInfoCompat(it).versionName
                             } catch (e: NameNotFoundException) {
                                 null
                             }
diff --git a/app/src/google/java/net/vonforst/evmap/auto/Utils.kt b/app/src/google/java/net/vonforst/evmap/auto/Utils.kt
index 5ac0d11b..dda75a38 100644
--- a/app/src/google/java/net/vonforst/evmap/auto/Utils.kt
+++ b/app/src/google/java/net/vonforst/evmap/auto/Utils.kt
@@ -19,6 +19,7 @@ import androidx.core.graphics.drawable.IconCompat
 import net.vonforst.evmap.BuildConfig
 import net.vonforst.evmap.R
 import net.vonforst.evmap.api.availability.ChargepointStatus
+import net.vonforst.evmap.getPackageInfoCompat
 import java.util.*
 import kotlin.math.roundToInt
 
@@ -196,7 +197,7 @@ fun <T> List<T>.paginate(nSingle: Int, nFirst: Int, nOther: Int, nLast: Int): Li
 }
 
 fun getAndroidAutoVersion(ctx: Context): List<String> {
-    val info = ctx.packageManager.getPackageInfo("com.google.android.projection.gearhead", 0)
+    val info = ctx.packageManager.getPackageInfoCompat("com.google.android.projection.gearhead", 0)
     return info.versionName.split(".")
 }
 
diff --git a/app/src/main/java/net/vonforst/evmap/MapsActivity.kt b/app/src/main/java/net/vonforst/evmap/MapsActivity.kt
index 89e259fb..9d27d2e6 100644
--- a/app/src/main/java/net/vonforst/evmap/MapsActivity.kt
+++ b/app/src/main/java/net/vonforst/evmap/MapsActivity.kt
@@ -76,7 +76,7 @@ class MapsActivity : AppCompatActivity(),
         val navView = findViewById<NavigationView>(R.id.nav_view)
         navView.setupWithNavController(navController)
 
-        ViewCompat.setOnApplyWindowInsetsListener(navView) { v, insets ->
+        ViewCompat.setOnApplyWindowInsetsListener(navView) { _, insets ->
             val header = navView.getHeaderView(0)
             header.setPadding(0, insets.getInsets(WindowInsetsCompat.Type.statusBars()).top, 0, 0)
             insets
diff --git a/app/src/main/java/net/vonforst/evmap/Utils.kt b/app/src/main/java/net/vonforst/evmap/Utils.kt
index 22a981dc..91604dc2 100644
--- a/app/src/main/java/net/vonforst/evmap/Utils.kt
+++ b/app/src/main/java/net/vonforst/evmap/Utils.kt
@@ -1,8 +1,11 @@
 package net.vonforst.evmap
 
 import android.content.Context
+import android.content.pm.PackageInfo
+import android.content.pm.PackageManager
 import android.content.res.Configuration
 import android.graphics.Typeface
+import android.os.Build
 import android.os.Bundle
 import android.text.*
 import android.text.style.StyleSpan
@@ -88,4 +91,11 @@ const val meterPerFt = 0.3048
 
 fun shouldUseImperialUnits(): Boolean {
     return Locale.getDefault().country in listOf("US", "GB", "MM", "LR")
-}
\ No newline at end of file
+}
+
+fun PackageManager.getPackageInfoCompat(packageName: String, flags: Int = 0): PackageInfo =
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+        getPackageInfo(packageName, PackageManager.PackageInfoFlags.of(flags.toLong()))
+    } else {
+        @Suppress("DEPRECATION") getPackageInfo(packageName, flags)
+    }
\ No newline at end of file
diff --git a/app/src/main/java/net/vonforst/evmap/adapter/DataBindingAdapters.kt b/app/src/main/java/net/vonforst/evmap/adapter/DataBindingAdapters.kt
index af7b460a..1a626756 100644
--- a/app/src/main/java/net/vonforst/evmap/adapter/DataBindingAdapters.kt
+++ b/app/src/main/java/net/vonforst/evmap/adapter/DataBindingAdapters.kt
@@ -1,7 +1,6 @@
 package net.vonforst.evmap.adapter
 
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
 import androidx.databinding.DataBindingUtil
 import androidx.databinding.ViewDataBinding
@@ -166,7 +165,7 @@ class CheckableConnectorAdapter : DataBindingAdapter<Chargepoint>() {
         root.setOnClickListener {
             root.isChecked = true
         }
-        root.setOnCheckedChangeListener { v: View, checked: Boolean ->
+        root.setOnCheckedChangeListener { _, checked: Boolean ->
             if (checked) {
                 checkedItem = holder.bindingAdapterPosition.takeIf { it != -1 }
                 root.post {
@@ -205,7 +204,7 @@ class CheckableChargepriceCarAdapter : DataBindingAdapter<ChargepriceCar>() {
         root.setOnClickListener {
             root.isChecked = true
         }
-        root.setOnCheckedChangeListener { v: View, checked: Boolean ->
+        root.setOnCheckedChangeListener { _, checked: Boolean ->
             if (checked && item != checkedItem) {
                 checkedItem = item
                 root.post {
diff --git a/app/src/main/java/net/vonforst/evmap/adapter/FilterProfilesAdapter.kt b/app/src/main/java/net/vonforst/evmap/adapter/FilterProfilesAdapter.kt
index 83db87d4..cca6e2b4 100644
--- a/app/src/main/java/net/vonforst/evmap/adapter/FilterProfilesAdapter.kt
+++ b/app/src/main/java/net/vonforst/evmap/adapter/FilterProfilesAdapter.kt
@@ -25,7 +25,7 @@ class FilterProfilesAdapter(
         super.bind(holder, item)
 
         val binding = holder.binding as ItemFilterProfileBinding
-        binding.handle.setOnTouchListener { v, event ->
+        binding.handle.setOnTouchListener { _, event ->
             if (event?.action == MotionEvent.ACTION_DOWN) {
                 dragHelper.startDrag(holder)
             }
diff --git a/app/src/main/java/net/vonforst/evmap/api/availability/AvailabilityDetector.kt b/app/src/main/java/net/vonforst/evmap/api/availability/AvailabilityDetector.kt
index a817d81b..65383e06 100644
--- a/app/src/main/java/net/vonforst/evmap/api/availability/AvailabilityDetector.kt
+++ b/app/src/main/java/net/vonforst/evmap/api/availability/AvailabilityDetector.kt
@@ -71,19 +71,19 @@ abstract class BaseAvailabilityDetector(private val client: OkHttpClient) : Avai
             connectors: Map<Long, Pair<Double, String>>,
             chargepoints: List<Chargepoint>
         ): Map<Chargepoint, Set<Long>> {
-            var chargepoints = chargepoints
+            var cpts = chargepoints
 
             // iterate over each connector type
             val types = connectors.map { it.value.second }.distinct().toSet()
             val equivalentTypes = types.map { equivalentPlugTypes(it).plus(it) }.cartesianProduct()
-            var geTypes = chargepoints.map { it.type }.distinct().toSet()
+            var geTypes = cpts.map { it.type }.distinct().toSet()
             if (!equivalentTypes.any { it == geTypes } && geTypes.size > 1 && geTypes.contains(
                     Chargepoint.SCHUKO
                 )) {
                 // If charger has household plugs and other plugs, try removing the household plugs
                 // (common e.g. in Hamburg -> 2x Type 2 + 2x Schuko, but NM only lists Type 2)
                 geTypes = geTypes.filter { it != Chargepoint.SCHUKO }.toSet()
-                chargepoints = chargepoints.filter { it.type != Chargepoint.SCHUKO }
+                cpts = cpts.filter { it.type != Chargepoint.SCHUKO }
             }
             if (!equivalentTypes.any { it == geTypes }) throw AvailabilityDetectorException("chargepoints do not match")
             return types.flatMap { type ->
@@ -93,14 +93,14 @@ abstract class BaseAvailabilityDetector(private val client: OkHttpClient) : Avai
                 val powers = connsOfType.map { it.value.first }.distinct().sorted()
                 // find corresponding powers in GE data
                 val gePowers =
-                    chargepoints.filter { equivalentPlugTypes(it.type).any { it == type } }
+                    cpts.filter { equivalentPlugTypes(it.type).any { it == type } }
                         .mapNotNull { it.power }.distinct().sorted()
 
                 // if the distinct number of powers is the same, try to match.
                 if (powers.size == gePowers.size) {
                     gePowers.zip(powers).map { (gePower, power) ->
                         val chargepoint =
-                            chargepoints.find { equivalentPlugTypes(it.type).any { it == type } && it.power == gePower }!!
+                            cpts.find { equivalentPlugTypes(it.type).any { it == type } && it.power == gePower }!!
                         val ids = connsOfType.filter { it.value.first == power }.keys
                         if (chargepoint.count != ids.size) {
                             throw AvailabilityDetectorException("chargepoints do not match")
@@ -108,7 +108,7 @@ abstract class BaseAvailabilityDetector(private val client: OkHttpClient) : Avai
                         chargepoint to ids
                     }
                 } else if (powers.size == 1 && gePowers.size == 2
-                    && chargepoints.sumOf { it.count } == connsOfType.size
+                    && cpts.sumOf { it.count } == connsOfType.size
                 ) {
                     // special case: dual charger(s) with load balancing
                     // GoingElectric shows 2 different powers, NewMotion just one
@@ -116,7 +116,7 @@ abstract class BaseAvailabilityDetector(private val client: OkHttpClient) : Avai
                     var i = 0
                     gePowers.map { gePower ->
                         val chargepoint =
-                            chargepoints.find { it.type in equivalentPlugTypes(type) && it.power == gePower }!!
+                            cpts.find { it.type in equivalentPlugTypes(type) && it.power == gePower }!!
                         val ids = allIds.subList(i, i + chargepoint.count).toSet()
                         i += chargepoint.count
                         chargepoint to ids
diff --git a/app/src/main/java/net/vonforst/evmap/api/availability/ChargecloudAvailabilityDetector.kt b/app/src/main/java/net/vonforst/evmap/api/availability/ChargecloudAvailabilityDetector.kt
index 9dd03b8a..884c2091 100644
--- a/app/src/main/java/net/vonforst/evmap/api/availability/ChargecloudAvailabilityDetector.kt
+++ b/app/src/main/java/net/vonforst/evmap/api/availability/ChargecloudAvailabilityDetector.kt
@@ -51,7 +51,7 @@ interface ChargecloudApi {
     )
 
     companion object {
-        fun create(client: OkHttpClient, baseUrl: String? = null): ChargecloudApi {
+        fun create(client: OkHttpClient, baseUrl: String): ChargecloudApi {
             val retrofit = Retrofit.Builder()
                 .baseUrl(baseUrl)
                 .addConverterFactory(MoshiConverterFactory.create())
diff --git a/app/src/main/java/net/vonforst/evmap/api/availability/NewMotionAvailabilityDetector.kt b/app/src/main/java/net/vonforst/evmap/api/availability/NewMotionAvailabilityDetector.kt
index 52358f52..95a3c322 100644
--- a/app/src/main/java/net/vonforst/evmap/api/availability/NewMotionAvailabilityDetector.kt
+++ b/app/src/main/java/net/vonforst/evmap/api/availability/NewMotionAvailabilityDetector.kt
@@ -140,7 +140,7 @@ class NewMotionAvailabilityDetector(client: OkHttpClient, baseUrl: String? = nul
         connectorStatus.forEach { (connector, statusStr, evseId) ->
             val id = connector.uid
             val power = connector.electricalProperties.getPower()
-            val type = when (connector.connectorType.toLowerCase(Locale.ROOT)) {
+            val type = when (connector.connectorType.lowercase(Locale.ROOT)) {
                 "type3" -> Chargepoint.TYPE_3
                 "type2" -> Chargepoint.TYPE_2_UNKNOWN
                 "type1" -> Chargepoint.TYPE_1
diff --git a/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricAdapters.kt b/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricAdapters.kt
index b59d65d3..efde294f 100644
--- a/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricAdapters.kt
+++ b/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricAdapters.kt
@@ -71,10 +71,10 @@ internal class JsonObjectOrFalseAdapter<T> private constructor(
     private val clazz: Class<*>
 ) : JsonAdapter<T>() {
 
-    class Factory() : JsonAdapter.Factory {
+    class Factory : JsonAdapter.Factory {
         override fun create(
             type: Type,
-            annotations: Set<Annotation>?,
+            annotations: Set<Annotation>,
             moshi: Moshi
         ): JsonAdapter<Any>? {
             val clazz = Types.getRawType(type)
diff --git a/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricApi.kt b/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricApi.kt
index e7d693ca..27acd518 100644
--- a/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricApi.kt
+++ b/app/src/main/java/net/vonforst/evmap/api/goingelectric/GoingElectricApi.kt
@@ -399,10 +399,10 @@ class GoingElectricApiWrapper(
         referenceData: ReferenceData,
         sp: StringProvider
     ): List<Filter<FilterValue>> {
-        val referenceData = referenceData as GEReferenceData
-        val plugs = referenceData.plugs
-        val networks = referenceData.networks
-        val chargeCards = referenceData.chargecards
+        val refData = referenceData as GEReferenceData
+        val plugs = refData.plugs
+        val networks = refData.networks
+        val chargeCards = refData.chargecards
 
         val plugMap = plugs.map { plug ->
             plug to nameForPlugType(sp, GEChargepoint.convertTypeFromGE(plug))
diff --git a/app/src/main/java/net/vonforst/evmap/api/openchargemap/OpenChargeMapApi.kt b/app/src/main/java/net/vonforst/evmap/api/openchargemap/OpenChargeMapApi.kt
index cd43624b..df976934 100644
--- a/app/src/main/java/net/vonforst/evmap/api/openchargemap/OpenChargeMapApi.kt
+++ b/app/src/main/java/net/vonforst/evmap/api/openchargemap/OpenChargeMapApi.kt
@@ -120,7 +120,7 @@ class OpenChargeMapApiWrapper(
         zoom: Float,
         filters: FilterValues?,
     ): Resource<List<ChargepointListItem>> {
-        val referenceData = referenceData as OCMReferenceData
+        val refData = referenceData as OCMReferenceData
 
         val minPower = filters?.getSliderValue("min_power")?.toDouble()
         val minConnectors = filters?.getSliderValue("min_connectors")
@@ -160,7 +160,7 @@ class OpenChargeMapApiWrapper(
                 minPower,
                 connectorsVal,
                 minConnectors,
-                referenceData,
+                refData,
                 zoom
             )
             return Resource.success(result)
@@ -176,7 +176,7 @@ class OpenChargeMapApiWrapper(
         zoom: Float,
         filters: FilterValues?
     ): Resource<List<ChargepointListItem>> {
-        val referenceData = referenceData as OCMReferenceData
+        val refData = referenceData as OCMReferenceData
 
         val minPower = filters?.getSliderValue("min_power")?.toDouble()
         val minConnectors = filters?.getSliderValue("min_connectors")
@@ -214,7 +214,7 @@ class OpenChargeMapApiWrapper(
                 minPower,
                 connectorsVal,
                 minConnectors,
-                referenceData,
+                refData,
                 zoom
             )
             return Resource.success(result)
@@ -254,11 +254,11 @@ class OpenChargeMapApiWrapper(
         referenceData: ReferenceData,
         id: Long
     ): Resource<ChargeLocation> {
-        val referenceData = referenceData as OCMReferenceData
+        val refData = referenceData as OCMReferenceData
         try {
             val response = api.getChargepointDetail(id)
             if (response.isSuccessful && response.body()?.size == 1) {
-                return Resource.success(response.body()!![0].convert(referenceData, true))
+                return Resource.success(response.body()!![0].convert(refData, true))
             } else {
                 return Resource.error(response.message(), null)
             }
@@ -284,10 +284,10 @@ class OpenChargeMapApiWrapper(
         referenceData: ReferenceData,
         sp: StringProvider
     ): List<Filter<FilterValue>> {
-        val referenceData = referenceData as OCMReferenceData
+        val refData = referenceData as OCMReferenceData
 
-        val operatorsMap = referenceData.operators.map { it.id.toString() to it.title }.toMap()
-        val plugMap = referenceData.connectionTypes.map { it.id.toString() to it.title }.toMap()
+        val operatorsMap = refData.operators.map { it.id.toString() to it.title }.toMap()
+        val plugMap = refData.connectionTypes.map { it.id.toString() to it.title }.toMap()
 
         return listOf(
             // supported by OCM API
diff --git a/app/src/main/java/net/vonforst/evmap/fragment/FavoritesFragment.kt b/app/src/main/java/net/vonforst/evmap/fragment/FavoritesFragment.kt
index 2beba7cf..5a839237 100644
--- a/app/src/main/java/net/vonforst/evmap/fragment/FavoritesFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/FavoritesFragment.kt
@@ -44,8 +44,7 @@ class FavoritesFragment : Fragment() {
     private val vm: FavoritesViewModel by viewModels(factoryProducer = {
         viewModelFactory {
             FavoritesViewModel(
-                requireActivity().application,
-                getString(R.string.goingelectric_key)
+                requireActivity().application
             )
         }
     })
diff --git a/app/src/main/java/net/vonforst/evmap/fragment/FilterFragment.kt b/app/src/main/java/net/vonforst/evmap/fragment/FilterFragment.kt
index 32ec3a6d..1addb690 100644
--- a/app/src/main/java/net/vonforst/evmap/fragment/FilterFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/FilterFragment.kt
@@ -120,7 +120,7 @@ class FilterFragment : Fragment(), MenuProvider {
 
             dialog.setTitle(R.string.save_as_profile)
                 .setMessage(R.string.save_profile_enter_name)
-                .setPositiveButton(R.string.ok) { di, button ->
+                .setPositiveButton(R.string.ok) { _, _ ->
                     if (input.text.isBlank()) {
                         saveProfile(true)
                     } else {
@@ -130,7 +130,7 @@ class FilterFragment : Fragment(), MenuProvider {
                         }
                     }
                 }
-                .setNegativeButton(R.string.cancel) { di, button ->
+                .setNegativeButton(R.string.cancel) { _, _ ->
 
                 }
         }
diff --git a/app/src/main/java/net/vonforst/evmap/fragment/FilterProfilesFragment.kt b/app/src/main/java/net/vonforst/evmap/fragment/FilterProfilesFragment.kt
index 4c432170..1279a017 100644
--- a/app/src/main/java/net/vonforst/evmap/fragment/FilterProfilesFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/FilterProfilesFragment.kt
@@ -188,12 +188,12 @@ class FilterProfilesFragment : Fragment() {
 
                 dialog.setTitle(R.string.rename)
                     .setMessage(R.string.save_profile_enter_name)
-                    .setPositiveButton(R.string.ok) { di, button ->
+                    .setPositiveButton(R.string.ok) { _, _ ->
                         lifecycleScope.launch {
                             vm.update(fp.copy(name = input.text.toString()))
                         }
                     }
-                    .setNegativeButton(R.string.cancel) { di, button ->
+                    .setNegativeButton(R.string.cancel) { _, _ ->
 
                     }
             }
diff --git a/app/src/main/java/net/vonforst/evmap/fragment/MapFragment.kt b/app/src/main/java/net/vonforst/evmap/fragment/MapFragment.kt
index ad8fbf34..2262cfd2 100644
--- a/app/src/main/java/net/vonforst/evmap/fragment/MapFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/MapFragment.kt
@@ -197,7 +197,7 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
 
         ViewCompat.setOnApplyWindowInsetsListener(
             binding.root
-        ) { v, insets ->
+        ) { _, insets ->
             ViewCompat.onApplyWindowInsets(binding.root, insets)
 
             val systemWindowInsetTop = insets.getInsets(WindowInsetsCompat.Type.statusBars()).top
@@ -465,7 +465,7 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
                     }
                 )
             }
-        binding.search.onFocusChangeListener = View.OnFocusChangeListener { v, hasFocus ->
+        binding.search.onFocusChangeListener = View.OnFocusChangeListener { _, hasFocus ->
             if (hasFocus) {
                 binding.search.keyListener = searchKeyListener
                 binding.search.text = binding.search.text  // workaround to fix copy/paste
diff --git a/app/src/main/java/net/vonforst/evmap/fragment/MultiSelectDialog.kt b/app/src/main/java/net/vonforst/evmap/fragment/MultiSelectDialog.kt
index 85dc871d..663b2ac0 100644
--- a/app/src/main/java/net/vonforst/evmap/fragment/MultiSelectDialog.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/MultiSelectDialog.kt
@@ -71,7 +71,7 @@ class MultiSelectDialog : MaterialDialogFragment() {
         binding.btnAll.visibility = if (showAllButton) View.VISIBLE else View.INVISIBLE
 
         items = data.entries.toList()
-            .sortedBy { it.value.toLowerCase(Locale.getDefault()) }
+            .sortedBy { it.value.lowercase(Locale.getDefault()) }
             .sortedBy {
                 when {
                     selected.contains(it.key) && commonChoices?.contains(it.key) == true -> 0
@@ -117,7 +117,7 @@ private fun search(
 ): List<MultiSelectItem> {
     return items.filter { item ->
         // search for string within name
-        text.toLowerCase(Locale.getDefault()) in item.name.toLowerCase(Locale.getDefault())
+        text.lowercase(Locale.getDefault()) in item.name.lowercase(Locale.getDefault())
     }
 }
 
diff --git a/app/src/main/java/net/vonforst/evmap/model/ChargersModel.kt b/app/src/main/java/net/vonforst/evmap/model/ChargersModel.kt
index afb7760c..3428b043 100644
--- a/app/src/main/java/net/vonforst/evmap/model/ChargersModel.kt
+++ b/app/src/main/java/net/vonforst/evmap/model/ChargersModel.kt
@@ -111,7 +111,7 @@ data class ChargeLocation(
 
         // check if there is more than one plug for any connector type
         val chargepointsPerConnector =
-            connectors.map { conn -> chargepoints.filter { it.type == conn }.sumBy { it.count } }
+            connectors.map { conn -> chargepoints.filter { it.type == conn }.sumOf { it.count } }
         return chargepointsPerConnector.any { it > 1 }
     }
 
@@ -127,13 +127,13 @@ data class ChargeLocation(
             return variants.map { variant ->
                 val count = chargepoints
                     .filter { it.type == variant.type && it.power == variant.power }
-                    .sumBy { it.count }
+                    .sumOf { it.count }
                 Chargepoint(variant.type, variant.power, count)
             }
         }
 
     val totalChargepoints: Int
-        get() = chargepoints.sumBy { it.count }
+        get() = chargepoints.sumOf { it.count }
 
     fun formatChargepoints(sp: StringProvider): String {
         return chargepointsMerged.map {
diff --git a/app/src/main/java/net/vonforst/evmap/ui/BarGraphView.kt b/app/src/main/java/net/vonforst/evmap/ui/BarGraphView.kt
index 68566970..90b7e3c9 100644
--- a/app/src/main/java/net/vonforst/evmap/ui/BarGraphView.kt
+++ b/app/src/main/java/net/vonforst/evmap/ui/BarGraphView.kt
@@ -211,12 +211,12 @@ class BarGraphView(context: Context, attrs: AttributeSet) : View(context, attrs)
     private fun drawBubble(canvas: Canvas, data: SortedMap<ZonedDateTime, Int>, maxValue: Int) {
         val bubbleBounds = bubbleBounds ?: return
         val graphBounds = graphBounds ?: return
-        val data = data.toList()
+        val d = data.toList()
 
-        if (data.size <= selectedBar) return
+        if (d.size <= selectedBar) return
         canvas.apply {
             val center = graphBounds.left + selectedBar * (barWidth + barMargin) + barWidth * 0.5f
-            val (t, v) = data[selectedBar]
+            val (t, v) = d[selectedBar]
             val tformat = context.getString(
                 R.string.prediction_time_colon,
                 t.withZoneSameInstant(ZoneId.systemDefault()).format(timeFormat)
diff --git a/app/src/main/java/net/vonforst/evmap/ui/BindingAdapters.kt b/app/src/main/java/net/vonforst/evmap/ui/BindingAdapters.kt
index 301ae87a..dda156bb 100644
--- a/app/src/main/java/net/vonforst/evmap/ui/BindingAdapters.kt
+++ b/app/src/main/java/net/vonforst/evmap/ui/BindingAdapters.kt
@@ -121,6 +121,7 @@ private fun activeTint(
 }
 
 @BindingAdapter("data")
+@Suppress("UNCHECKED_CAST")
 fun <T> setRecyclerViewData(recyclerView: RecyclerView, items: List<T>?) {
     if (recyclerView.adapter is ListAdapter<*, *>) {
         (recyclerView.adapter as ListAdapter<T, *>).submitList(items)
@@ -128,6 +129,7 @@ fun <T> setRecyclerViewData(recyclerView: RecyclerView, items: List<T>?) {
 }
 
 @BindingAdapter("data")
+@Suppress("UNCHECKED_CAST")
 fun <T> setRecyclerViewData(recyclerView: ViewPager2, items: List<T>?) {
     if (recyclerView.adapter is ListAdapter<*, *>) {
         (recyclerView.adapter as ListAdapter<T, *>).submitList(items)
@@ -325,10 +327,10 @@ fun distance(meters: Number?): String? {
     }
 }
 
-@InverseBindingAdapter(attribute = "app:values")
+@InverseBindingAdapter(attribute = "values")
 fun getRangeSliderValue(slider: RangeSlider) = slider.values
 
-@BindingAdapter("app:valuesAttrChanged")
+@BindingAdapter("valuesAttrChanged")
 fun setRangeSliderListeners(slider: RangeSlider, attrChange: InverseBindingListener) {
     slider.addOnChangeListener { _, _, _ ->
         attrChange.onChange()
@@ -348,7 +350,7 @@ fun colorEnabled(ctx: Context, enabled: Boolean): Int {
     return color
 }
 
-@BindingAdapter("app:tint")
+@BindingAdapter("tint")
 fun setImageTintList(view: ImageView, @ColorInt color: Int) {
     view.imageTintList = ColorStateList.valueOf(color)
 }
diff --git a/app/src/main/java/net/vonforst/evmap/ui/RangeSliderPreference.kt b/app/src/main/java/net/vonforst/evmap/ui/RangeSliderPreference.kt
index fd082288..e18d2f07 100644
--- a/app/src/main/java/net/vonforst/evmap/ui/RangeSliderPreference.kt
+++ b/app/src/main/java/net/vonforst/evmap/ui/RangeSliderPreference.kt
@@ -89,12 +89,12 @@ class RangeSliderPreference(context: Context, attrs: AttributeSet) : Preference(
         slider.valueTo = valueTo
         stepSize?.let { slider.stepSize = it }
 
-        slider.addOnChangeListener { slider, value, fromUser ->
+        slider.addOnChangeListener { slider, _, fromUser ->
             if (fromUser && (updatesContinuously || !dragging)) {
                 syncValueInternal(slider)
             }
         }
-        slider.setOnTouchListener { v, event ->
+        slider.setOnTouchListener { _, event ->
             when (event.actionMasked) {
                 MotionEvent.ACTION_DOWN -> dragging = true
                 MotionEvent.ACTION_UP -> dragging = false
diff --git a/app/src/main/java/net/vonforst/evmap/viewmodel/FavoritesViewModel.kt b/app/src/main/java/net/vonforst/evmap/viewmodel/FavoritesViewModel.kt
index 87c8abbb..7002a8c5 100644
--- a/app/src/main/java/net/vonforst/evmap/viewmodel/FavoritesViewModel.kt
+++ b/app/src/main/java/net/vonforst/evmap/viewmodel/FavoritesViewModel.kt
@@ -16,7 +16,7 @@ import net.vonforst.evmap.model.FavoriteWithDetail
 import net.vonforst.evmap.storage.AppDatabase
 import net.vonforst.evmap.utils.distanceBetween
 
-class FavoritesViewModel(application: Application, geApiKey: String) :
+class FavoritesViewModel(application: Application) :
     AndroidViewModel(application) {
     private var db = AppDatabase.getInstance(application)
 
@@ -69,7 +69,7 @@ class FavoritesViewModel(application: Application, geApiKey: String) :
                     FavoritesListItem(
                         favorite,
                         totalAvailable(charger.id),
-                        charger.chargepoints.sumBy { it.count },
+                        charger.chargepoints.sumOf { it.count },
                         location.value.let { loc ->
                             if (loc == null) null else {
                                 distanceBetween(
diff --git a/app/src/main/java/net/vonforst/evmap/viewmodel/Utils.kt b/app/src/main/java/net/vonforst/evmap/viewmodel/Utils.kt
index a5e8bc5b..0a8fa0d0 100644
--- a/app/src/main/java/net/vonforst/evmap/viewmodel/Utils.kt
+++ b/app/src/main/java/net/vonforst/evmap/viewmodel/Utils.kt
@@ -13,7 +13,7 @@ import java.util.concurrent.atomic.AtomicBoolean
 @Suppress("UNCHECKED_CAST")
 inline fun <VM : ViewModel> viewModelFactory(crossinline f: () -> VM) =
     object : ViewModelProvider.Factory {
-        override fun <T : ViewModel> create(aClass: Class<T>): T = f() as T
+        override fun <T : ViewModel> create(modelClass: Class<T>): T = f() as T
     }
 
 @Suppress("UNCHECKED_CAST")
@@ -106,7 +106,8 @@ fun <T> throttleLatest(
     }
 }
 
-public suspend fun <T> LiveData<T>.await(): T {
+@ExperimentalCoroutinesApi
+suspend fun <T> LiveData<T>.await(): T {
     return suspendCancellableCoroutine { continuation ->
         val observer = object : Observer<T> {
             override fun onChanged(value: T?) {
@@ -124,7 +125,8 @@ public suspend fun <T> LiveData<T>.await(): T {
     }
 }
 
-public suspend fun <T> LiveData<Resource<T>>.awaitFinished(): Resource<T> {
+@ExperimentalCoroutinesApi
+suspend fun <T> LiveData<Resource<T>>.awaitFinished(): Resource<T> {
     return suspendCancellableCoroutine { continuation ->
         val observer = object : Observer<Resource<T>> {
             override fun onChanged(value: Resource<T>) {