🐛 Fix invalid linter (#215)

analysis_options.yaml
```diff
- includes: package:flutter_lints/flutter.yaml
+ include: package:flutter_lints/flutter.yaml
```

Author: AmosHuKe

analysis_options.yaml

@@ -1,4 +1,4 @@
-includes: package:flutter_lints/flutter.yaml
+include: package:flutter_lints/flutter.yaml
 
 linter:
   rules:

example/lib/main.dart

@@ -22,7 +22,7 @@ void main() {
 }
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
+  const MyApp({super.key});
 
   @override
   Widget build(BuildContext context) {

example/lib/pages/home_page.dart

@@ -14,7 +14,7 @@ import '../widgets/method_list_view.dart';
 import '../widgets/selected_assets_view.dart';
 
 class HomePage extends StatefulWidget {
-  const HomePage({Key? key}) : super(key: key);
+  const HomePage({super.key});
 
   @override
   State<HomePage> createState() => _MyHomePageState();

example/lib/pages/splash_page.dart

@@ -9,7 +9,7 @@ import '../main.dart';
 import 'home_page.dart';
 
 class SplashPage extends StatefulWidget {
-  const SplashPage({Key? key}) : super(key: key);
+  const SplashPage({super.key});
 
   @override
   State<SplashPage> createState() => _SplashPageState();

example/lib/widgets/asset_widget_builder.dart

@@ -7,10 +7,10 @@ import 'package:wechat_camera_picker/wechat_camera_picker.dart';
 
 class AssetWidgetBuilder extends StatelessWidget {
   const AssetWidgetBuilder({
-    Key? key,
+    super.key,
     required this.entity,
     required this.isDisplayingDetail,
-  }) : super(key: key);
+  });
 
   final AssetEntity entity;
   final bool isDisplayingDetail;

example/lib/widgets/method_list_view.dart

@@ -8,10 +8,10 @@ import '../models/picker_method.dart';
 
 class MethodListView extends StatefulWidget {
   const MethodListView({
-    Key? key,
+    super.key,
     required this.pickMethods,
     required this.onSelectMethod,
-  }) : super(key: key);
+  });
 
   final List<PickMethod> pickMethods;
   final void Function(PickMethod method) onSelectMethod;

example/lib/widgets/preview_asset_widget.dart

@@ -9,7 +9,7 @@ import 'package:video_player/video_player.dart';
 import 'package:wechat_camera_picker/wechat_camera_picker.dart';
 
 class PreviewAssetWidget extends StatefulWidget {
-  const PreviewAssetWidget(this.asset, {Key? key}) : super(key: key);
+  const PreviewAssetWidget(this.asset, {super.key});
 
   final AssetEntity asset;
 

example/lib/widgets/selected_assets_view.dart

@@ -11,11 +11,11 @@ import 'preview_asset_widget.dart';
 
 class SelectedAssetView extends StatelessWidget {
   const SelectedAssetView({
-    Key? key,
+    super.key,
     required this.asset,
     required this.isDisplayingDetail,
     required this.onRemoveAsset,
-  }) : super(key: key);
+  });
 
   final AssetEntity asset;
   final ValueNotifier<bool> isDisplayingDetail;

example/pubspec.yaml

@@ -20,6 +20,9 @@ dependencies:
   package_info_plus: ^4.0.0
   video_player: ^2.7.0
 
+dev_dependencies:
+  flutter_lints: any
+
 flutter:
   uses-material-design: true
   assets:

lib/src/states/camera_picker_viewer_state.dart

@@ -379,7 +379,8 @@ class CameraPickerViewerState extends State<CameraPickerViewer> {
 }
 
 class _WechatLoading extends StatefulWidget {
-  const _WechatLoading({Key? key, required this.tip}) : super(key: key);
+  // ignore: unused_element
+  const _WechatLoading({super.key, required this.tip});
 
   final String tip;