diff --git a/green_walking/lib/config.dart b/green_walking/lib/config.dart
index 549efb0..5b46d94 100644
--- a/green_walking/lib/config.dart
+++ b/green_walking/lib/config.dart
@@ -4,6 +4,7 @@ String appAuthor = 'Xennis';
 String supportMail = 'code@xennis.org';
 Uri privacyPolicyUrl =
     Uri.https('raw.githubusercontent.com', '/Xennis/green-walking/main/web/privacy/privacy-policy.md');
+Uri appPlayStoreUrl = Uri.https('play.google.com', '/store/apps/details', {'id': androidAppID});
 
 class CustomMapboxStyles {
   static const String outdoor = 'mapbox://styles/xennis/ckfbioyul1iln1ap0pm5hrcgy';
diff --git a/green_walking/lib/pages/map.dart b/green_walking/lib/pages/map.dart
index 577166d..bf220b7 100644
--- a/green_walking/lib/pages/map.dart
+++ b/green_walking/lib/pages/map.dart
@@ -91,7 +91,7 @@ class _MapConfig {
 }
 
 class _NoTransitionPageRoute<T> extends MaterialPageRoute<T> {
-  _NoTransitionPageRoute({required WidgetBuilder builder, super.settings}) : super(builder: builder);
+  _NoTransitionPageRoute({required super.builder, super.settings});
 
   @override
   Widget buildTransitions(
diff --git a/green_walking/lib/widgets/location_button.dart b/green_walking/lib/widgets/location_button.dart
index c44b39c..b916dda 100644
--- a/green_walking/lib/widgets/location_button.dart
+++ b/green_walking/lib/widgets/location_button.dart
@@ -68,7 +68,7 @@ class _LocationButtonState extends State<LocationButton> {
     );
   }
 
-  Future<void> _checkLocationServiceEnabled() async {
+  void _checkLocationServiceEnabled() async {
     final bool enabled = await Geolocator.isLocationServiceEnabled();
     if (enabled != _locationServiceEnabled) {
       setState(() {
@@ -77,7 +77,7 @@ class _LocationButtonState extends State<LocationButton> {
     }
   }
 
-  Future<void> _onPressed() async {
+  void _onPressed() async {
     bool permissionGranted = false;
 
     // Check permission
diff --git a/green_walking/lib/widgets/map_view.dart b/green_walking/lib/widgets/map_view.dart
index e4a842c..f8b7466 100644
--- a/green_walking/lib/widgets/map_view.dart
+++ b/green_walking/lib/widgets/map_view.dart
@@ -21,7 +21,7 @@ class MapView extends StatefulWidget {
 
   final String accessToken;
   final CameraOptions? lastCameraOption;
-  final void Function() onOpenDrawer;
+  final VoidCallback onOpenDrawer;
   final Future<Position?> Function({Position? userPosition, Position? reversePosition, Position? proximity})
       onSearchPage;
 
diff --git a/green_walking/lib/widgets/navigation_drawer.dart b/green_walking/lib/widgets/navigation_drawer.dart
index 09e9eb4..df63862 100644
--- a/green_walking/lib/widgets/navigation_drawer.dart
+++ b/green_walking/lib/widgets/navigation_drawer.dart
@@ -94,8 +94,7 @@ class _RateAppListTile extends StatelessWidget {
       return ListTile(
           leading: const Icon(Icons.star),
           title: Text(l10n.rateApp),
-          onTap: () => launchUrl(Uri.https('play.google.com', '/store/apps/details', {'id': androidAppID}),
-              mode: LaunchMode.externalApplication));
+          onTap: () => launchUrl(appPlayStoreUrl, mode: LaunchMode.externalApplication));
     }
     return Container();
   }