diff --git a/audio_service/example/lib/common.dart b/audio_service/example/lib/common.dart
index 5dc9373c..4fb42820 100644
--- a/audio_service/example/lib/common.dart
+++ b/audio_service/example/lib/common.dart
@@ -22,13 +22,13 @@ class SeekBar extends StatefulWidget {
   final ValueChanged<Duration>? onChangeEnd;
 
   const SeekBar({
-    Key? key,
+    super.key,
     required this.duration,
     required this.position,
     this.bufferedPosition = Duration.zero,
     this.onChanged,
     this.onChangeEnd,
-  }) : super(key: key);
+  });
 
   @override
   SeekBarState createState() => SeekBarState();
@@ -141,7 +141,7 @@ class HiddenThumbComponentShape extends SliderComponentShape {
 }
 
 class LoggingAudioHandler extends CompositeAudioHandler {
-  LoggingAudioHandler(AudioHandler inner) : super(inner) {
+  LoggingAudioHandler(super.inner) {
     playbackState.listen((state) {
       _log('playbackState changed: $state');
     });
diff --git a/audio_service/example/lib/example_android13.dart b/audio_service/example/lib/example_android13.dart
index 90a7e1bd..3eb1c84e 100644
--- a/audio_service/example/lib/example_android13.dart
+++ b/audio_service/example/lib/example_android13.dart
@@ -37,7 +37,7 @@ Future<void> main() async {
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -50,7 +50,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MainScreen extends StatelessWidget {
-  const MainScreen({Key? key}) : super(key: key);
+  const MainScreen({super.key});
 
   @override
   Widget build(BuildContext context) {
diff --git a/audio_service/example/lib/example_android_songs.dart b/audio_service/example/lib/example_android_songs.dart
index 0c9fdd11..baaae302 100644
--- a/audio_service/example/lib/example_android_songs.dart
+++ b/audio_service/example/lib/example_android_songs.dart
@@ -85,7 +85,7 @@ Future<void> main() async {
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -98,7 +98,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MainScreen extends StatefulWidget {
-  const MainScreen({Key? key}) : super(key: key);
+  const MainScreen({super.key});
 
   @override
   State<MainScreen> createState() => _MainScreenState();
@@ -225,7 +225,7 @@ class _MainScreenState extends State<MainScreen> {
 }
 
 class SongListScreen extends StatelessWidget {
-  const SongListScreen({Key? key}) : super(key: key);
+  const SongListScreen({super.key});
 
   IconButton _button(IconData iconData, VoidCallback onPressed) => IconButton(
         icon: Icon(iconData),
@@ -303,10 +303,10 @@ class SongListScreen extends StatelessWidget {
 
 class SongTile extends StatelessWidget {
   const SongTile({
-    Key? key,
+    super.key,
     required this.song,
     this.tappable = true,
-  }) : super(key: key);
+  });
 
   final Song song;
   final bool tappable;
@@ -337,7 +337,7 @@ class SongTile extends StatelessWidget {
 ///
 /// See the comment at the top of the example for the full context.
 class SongArt extends StatefulWidget {
-  const SongArt({Key? key, required this.song}) : super(key: key);
+  const SongArt({super.key, required this.song});
 
   final Song song;
 
diff --git a/audio_service/example/lib/example_multiple_handlers.dart b/audio_service/example/lib/example_multiple_handlers.dart
index 3939d446..6e6dad9a 100644
--- a/audio_service/example/lib/example_multiple_handlers.dart
+++ b/audio_service/example/lib/example_multiple_handlers.dart
@@ -57,7 +57,7 @@ Future<void> main() async {
 
 /// The app widget
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -76,7 +76,7 @@ class MainScreen extends StatelessWidget {
     'Text-To-Speech',
   ];
 
-  const MainScreen({Key? key}) : super(key: key);
+  const MainScreen({super.key});
 
   @override
   Widget build(BuildContext context) {
diff --git a/audio_service/example/lib/example_playlist.dart b/audio_service/example/lib/example_playlist.dart
index d1e3eb61..29ad4498 100644
--- a/audio_service/example/lib/example_playlist.dart
+++ b/audio_service/example/lib/example_playlist.dart
@@ -33,7 +33,7 @@ Future<void> main() async {
 
 /// The app widget
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -47,7 +47,7 @@ class MyApp extends StatelessWidget {
 
 /// The main screen.
 class MainScreen extends StatelessWidget {
-  const MainScreen({Key? key}) : super(key: key);
+  const MainScreen({super.key});
 
   Stream<Duration> get _bufferedPositionStream => _audioHandler.playbackState
       .map((state) => state.bufferedPosition)
@@ -228,7 +228,7 @@ class MainScreen extends StatelessWidget {
 class ControlButtons extends StatelessWidget {
   final AudioPlayerHandler audioHandler;
 
-  const ControlButtons(this.audioHandler, {Key? key}) : super(key: key);
+  const ControlButtons(this.audioHandler, {super.key});
 
   @override
   Widget build(BuildContext context) {
diff --git a/audio_service/example/lib/main.dart b/audio_service/example/lib/main.dart
index 91e5c79f..e415c978 100644
--- a/audio_service/example/lib/main.dart
+++ b/audio_service/example/lib/main.dart
@@ -43,7 +43,7 @@ Future<void> main() async {
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {
@@ -56,7 +56,7 @@ class MyApp extends StatelessWidget {
 }
 
 class MainScreen extends StatelessWidget {
-  const MainScreen({Key? key}) : super(key: key);
+  const MainScreen({super.key});
 
   @override
   Widget build(BuildContext context) {
diff --git a/audio_service/lib/audio_service.dart b/audio_service/lib/audio_service.dart
index 34363f4c..941c1206 100644
--- a/audio_service/lib/audio_service.dart
+++ b/audio_service/lib/audio_service.dart
@@ -2400,11 +2400,10 @@ class IsolatedAudioHandler extends CompositeAudioHandler {
   /// isolate is able to register another new handler with the same name before
   /// this isolate can.
   IsolatedAudioHandler(
-    AudioHandler inner, {
+    super.inner, {
     this.portName = defaultPortName,
     bool overridePortName = false,
-  })  : assert(!kIsWeb),
-        super(inner) {
+  }) : assert(!kIsWeb) {
     _receivePort.listen((dynamic event) async {
       final request = event as _IsolateRequest;
       switch (request.method) {
@@ -4051,7 +4050,7 @@ class AudioServiceWidget extends StatelessWidget {
   final Widget child;
 
   /// Deprecated.
-  const AudioServiceWidget({Key? key, required this.child}) : super(key: key);
+  const AudioServiceWidget({super.key, required this.child});
 
   @override
   Widget build(BuildContext context) {