chore: Update example

fix #240, fix #212

record/example/lib/audio_player.dart

@@ -14,10 +14,10 @@ class AudioPlayer extends StatefulWidget {
   final VoidCallback onDelete;
 
   const AudioPlayer({
-    Key? key,
+    super.key,
     required this.source,
     required this.onDelete,
-  }) : super(key: key);
+  });
 
   @override
   AudioPlayerState createState() => AudioPlayerState();

record/example/lib/audio_recorder.dart

@@ -9,7 +9,7 @@ import 'platform/audio_recorder_platform.dart';
 class Recorder extends StatefulWidget {
   final void Function(String path) onStop;
 
-  const Recorder({Key? key, required this.onStop}) : super(key: key);
+  const Recorder({super.key, required this.onStop});
 
   @override
   State<Recorder> createState() => _RecorderState();
@@ -46,19 +46,14 @@ class _RecorderState extends State<Recorder> with AudioRecorderMixin {
       if (await _audioRecorder.hasPermission()) {
         const encoder = AudioEncoder.aacLc;
 
-        // We don't do anything with this but printing
-        final isSupported = await _audioRecorder.isEncoderSupported(
-          encoder,
-        );
-
-        if (!isSupported) {
-          debugPrint('${encoder.name} supported: $isSupported');
+        if (!await _isEncoderSupported(encoder)) {
+          return;
         }
 
         final devs = await _audioRecorder.listInputDevices();
         debugPrint(devs.toString());
 
-        const config = RecordConfig(encoder: encoder);
+        const config = RecordConfig(encoder: encoder, numChannels: 1);
 
         // Record to file
         await recordFile(_audioRecorder, config);
@@ -108,6 +103,25 @@ class _RecorderState extends State<Recorder> with AudioRecorderMixin {
     }
   }
 
+  Future<bool> _isEncoderSupported(AudioEncoder encoder) async {
+    final isSupported = await _audioRecorder.isEncoderSupported(
+      encoder,
+    );
+
+    if (!isSupported) {
+      debugPrint('${encoder.name} is not supported on this platform.');
+      debugPrint('Supported encoders are:');
+
+      for (final e in AudioEncoder.values) {
+        if (await _audioRecorder.isEncoderSupported(e)) {
+          debugPrint('- ${encoder.name}');
+        }
+      }
+    }
+
+    return isSupported;
+  }
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(

record/example/lib/main.dart

@@ -7,7 +7,7 @@ import 'package:record_example/audio_recorder.dart';
 void main() => runApp(const MyApp());
 
 class MyApp extends StatefulWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   State<MyApp> createState() => _MyAppState();

record/example/lib/platform/audio_recorder_web.dart

@@ -29,6 +29,7 @@ mixin AudioRecorderMixin {
     html.document.body!.children.add(anchor);
     anchor.click();
     html.document.body!.children.remove(anchor);
-    html.Url.revokeObjectUrl(path);
+
+    // html.Url.revokeObjectUrl(path);
   }
 }

record/example/pubspec.yaml

@@ -13,7 +13,7 @@ environment:
 dependencies:
   path: ^1.8.0
   path_provider: ^2.0.1
-  audioplayers: ^5.2.0
+  audioplayers: ^5.2.1
 
   flutter:
     sdk: flutter
@@ -22,7 +22,7 @@ dependencies:
     path: ../
 
 dev_dependencies:
-  flutter_lints: ^2.0.3
+  flutter_lints: ^3.0.0
 
 # The following section is specific to Flutter.
 flutter: