feat: add linting rules and linted the project

Author: saileshbro

analysis_options.yaml

@@ -0,0 +1,26 @@
+include: package:lint/analysis_options.yaml
+analyzer:
+ errors:
+ missing_required_param: error
+ missing_return: error
+ must_be_immutable: error
+ parameter_assignments: error
+ sort_pub_dependencies: ignore
+ sort_unnamed_constructors_first: warning
+ avoid_print: ignore
+ file_names: ignore
+ avoid_function_literals_in_foreach_calls: ignore
+ argument_type_not_assignable: error
+ unnecessary_getters_setters: error
+ unnecessary_raw_strings: error
+ prefer_constructors_over_static_methods: error
+ exclude:
+ - "**/*.locator.dart"
+ - "**/*.router.dart"
+ - "**/*.logger.dart"
+ - "**/*.form.dart"
+ - "**/*.g.dart"
+linter:
+ rules:
+ parameter_assignments: true
+ always_use_package_imports: true

lib/ExampleNameItem.dart

@@ -24,9 +24,7 @@ class ExampleNameItem extends StatelessWidget {
  borderRadius: BorderRadius.circular(4.0),
  child: Card(
  elevation: 4.0,
- shape: const RoundedRectangleBorder(
- borderRadius: BorderRadius.all(Radius.circular(0.0)),
- ),
+ shape: const RoundedRectangleBorder(),
  child: Container(
  decoration: BoxDecoration(
  border: Border(
@@ -44,13 +42,11 @@ class ExampleNameItem extends StatelessWidget {
  },
  child: Row(
  mainAxisAlignment: MainAxisAlignment.spaceBetween,
- crossAxisAlignment: CrossAxisAlignment.center,
- mainAxisSize: MainAxisSize.max,
  children: <Widget>[
  Expanded(
  child: Container(
- margin:
- EdgeInsets.symmetric(vertical: 16.0, horizontal: 8.0),
+ margin: const EdgeInsets.symmetric(
+ vertical: 16.0, horizontal: 8.0),
  child: Text(
  exampleNames.title,
  softWrap: true,
@@ -59,8 +55,8 @@ class ExampleNameItem extends StatelessWidget {
  ),
  ),
  ),
- Padding(
- padding: const EdgeInsets.all(8.0),
+ const Padding(
+ padding: EdgeInsets.all(8.0),
  child: Icon(
  Icons.chevron_right,
  ),

lib/main.dart

@@ -6,8 +6,8 @@ import 'package:flutter/material.dart';
 import 'package:flutter_playground/store/theme_store.dart';
 import 'package:provider/provider.dart';
 
-import 'my_app.dart';
-import 'values/imports.dart';
+import 'package:flutter_playground/my_app.dart';
+import 'package:flutter_playground/values/imports.dart';
 
 void main() {
  return runApp(

lib/my_app.dart

@@ -7,14 +7,14 @@ import 'package:flutter_playground/values/routes.dart';
 import 'package:google_fonts/google_fonts.dart';
 import 'package:provider/provider.dart';
 
-import 'store/theme_store.dart';
-import 'ui_ux/home_page/my_home_page_store.dart';
-import 'utils/Strings.dart';
+import 'package:flutter_playground/store/theme_store.dart';
+import 'package:flutter_playground/ui_ux/home_page/my_home_page_store.dart';
+import 'package:flutter_playground/utils/Strings.dart';
 
 class MyApp extends StatelessObserverWidget {
  static FirebaseAnalytics analytics = FirebaseAnalytics();
  static FirebaseAnalyticsObserver observer =
- FirebaseAnalyticsObserver(analytics: analytics);
+  FirebaseAnalyticsObserver(analytics: analytics);
 
  @override
  Widget build(BuildContext context) {
@@ -32,7 +32,7 @@ class MyApp extends StatelessObserverWidget {
  debugShowCheckedModeBanner: false,
  home: Provider(
  create: (context) => MyHomePageStore()..initList(),
- child: MyHomePage(title: Strings.appName),
+ child: const MyHomePage(title: Strings.appName),
  ),
  routes: DefaultRoutes.routes(),
  );

lib/store/theme_store.dart

@@ -10,7 +10,7 @@ abstract class _ThemeStore with Store {
  ThemeMode themeMode = ThemeMode.light;
 
  @action
- changeTheme() {
+ void changeTheme() {
  themeMode == ThemeMode.light
  ? themeMode = ThemeMode.dark
  : themeMode = ThemeMode.light;

lib/ui/aboutlisttile/AboutListTileExample.dart

@@ -7,7 +7,7 @@ import 'package:flutter/material.dart';
 class AboutListTileExample extends StatefulWidget {
  final String title;
 
- AboutListTileExample({Key? key, required this.title}) : super(key: key);
+ const AboutListTileExample({Key? key, required this.title}) : super(key: key);
 
  @override
  _AboutListTileState createState() => _AboutListTileState();
@@ -20,21 +20,19 @@ class _AboutListTileState extends State<AboutListTileExample> {
  appBar: AppBar(
  title: Text(widget.title),
  ),
- body: Container(
- child: Column(
- children: <Widget>[
- AboutListTile(
- icon: FlutterLogo(),
- child: Text("About"),
- aboutBoxChildren: <Widget>[
- Text("Playground app for Flutter. Contains list of examples."),
- ],
- applicationIcon: FlutterLogo(),
- applicationName: "Flutter Playground",
- applicationVersion: "1.0.0",
- ),
- ],
- ),
+ body: Column(
+ children: const <Widget>[
+ AboutListTile(
+ icon: FlutterLogo(),
+ aboutBoxChildren: <Widget>[
+ Text("Playground app for Flutter. Contains list of examples."),
+ ],
+ applicationIcon: FlutterLogo(),
+ applicationName: "Flutter Playground",
+ applicationVersion: "1.0.0",
+ child: Text("About"),
+ ),
+ ],
  ),
  );
  }

lib/ui/animated_crossfade/animated_cross_fade.dart

@@ -7,7 +7,7 @@ import 'package:flutter/material.dart';
 class AnimatedCrossFadeExample extends StatefulWidget {
  final String title;
 
- AnimatedCrossFadeExample(this.title);
+ const AnimatedCrossFadeExample(this.title);
 
  @override
  _AnimatedCrossFadeExampleState createState() =>
@@ -23,32 +23,28 @@ class _AnimatedCrossFadeExampleState extends State<AnimatedCrossFadeExample> {
  appBar: AppBar(
  title: Text(widget.title),
  ),
- body: Container(
- child: Center(
- child: Column(
- children: <Widget>[
- TextButton(
- onPressed: () {
- setState(() {
- _first = !_first;
- });
- },
- child: Text("Click")),
- AnimatedCrossFade(
- sizeCurve: ElasticOutCurve(),
- firstCurve: Curves.decelerate,
- secondCurve: Curves.decelerate,
- duration: const Duration(seconds: 3),
- firstChild: const FlutterLogo(
- style: FlutterLogoStyle.horizontal, size: 100.0),
- secondChild: const FlutterLogo(
- style: FlutterLogoStyle.markOnly, size: 100.0),
- crossFadeState: _first
- ? CrossFadeState.showFirst
- : CrossFadeState.showSecond,
- ),
- ],
- ),
+ body: Center(
+ child: Column(
+ children: <Widget>[
+ TextButton(
+ onPressed: () {
+ setState(() {
+ _first = !_first;
+ });
+ },
+ child: const Text("Click")),
+ AnimatedCrossFade(
+ sizeCurve: const ElasticOutCurve(),
+ firstCurve: Curves.decelerate,
+ secondCurve: Curves.decelerate,
+ duration: const Duration(seconds: 3),
+ firstChild: const FlutterLogo(
+ style: FlutterLogoStyle.horizontal, size: 100.0),
+ secondChild: const FlutterLogo(size: 100.0),
+ crossFadeState:
+ _first ? CrossFadeState.showFirst : CrossFadeState.showSecond,
+ ),
+ ],
  ),
  ),
  );

lib/ui/animatedicons/AnimatedIcons.dart

@@ -5,7 +5,7 @@
 import 'package:flutter/material.dart';
 
 class AnimatedIconsDemo extends StatefulWidget {
- AnimatedIconsDemo({Key? key, required this.title}) : super(key: key);
+ const AnimatedIconsDemo({Key? key, required this.title}) : super(key: key);
 
  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
@@ -76,7 +76,7 @@ class _AnimatedIconsState extends State<AnimatedIconsDemo>
  );
  }
 
- getAnimatedIcon(AnimatedIconData iconData, String title) {
+ Widget getAnimatedIcon(AnimatedIconData iconData, String title) {
  return Padding(
  padding: const EdgeInsets.all(8.0),
  child: InkWell(

lib/ui/animatedsize/AnimatedSize.dart

@@ -5,7 +5,7 @@
 import 'package:flutter/material.dart';
 
 class AnimatedSizeDemo extends StatefulWidget {
- AnimatedSizeDemo({Key? key, required this.title}) : super(key: key);
+ const AnimatedSizeDemo({Key? key, required this.title}) : super(key: key);
  final String title;
 
  @override
@@ -31,6 +31,8 @@ class _AnimatedSizeDemoState extends State<AnimatedSizeDemo>
  children: <Widget>[
  AnimatedSize(
  curve: Curves.bounceInOut,
+ vsync: this,
+ duration: const Duration(seconds: 1),
  child: GestureDetector(
  onTap: () {
  setState(() {
@@ -53,8 +55,6 @@ class _AnimatedSizeDemoState extends State<AnimatedSizeDemo>
  color: _color,
  ),
  ),
- vsync: this,
- duration: Duration(seconds: 1),
  ),
  ],
  ),

lib/ui/animatedswitcher/AnimatedSwitcherExample.dart

@@ -5,7 +5,8 @@
 import 'package:flutter/material.dart';
 
 class AnimatedSwitcherExample extends StatefulWidget {
- AnimatedSwitcherExample({Key? key, required this.title}) : super(key: key);
+ const AnimatedSwitcherExample({Key? key, required this.title})
+ : super(key: key);
 
  final String title;
 
@@ -35,14 +36,17 @@ class _AnimatedSwitcherExampleState extends State<AnimatedSwitcherExample> {
  children: <Widget>[
  Column(
  children: <Widget>[
- Text(
+ const Text(
  'You have pushed the button this many times:',
  ),
  AnimatedSwitcher(
  duration: const Duration(milliseconds: 500),
  transitionBuilder:
  (Widget child, Animation<double> animation) {
- return ScaleTransition(child: child, scale: animation);
+ return ScaleTransition(
+ scale: animation,
+ child: child,
+ );
  },
  child: Text(
  '$_counter',
@@ -61,7 +65,7 @@ class _AnimatedSwitcherExampleState extends State<AnimatedSwitcherExample> {
  floatingActionButton: FloatingActionButton(
  onPressed: _incrementCounter,
  tooltip: 'Increment',
- child: Icon(Icons.add),
+ child: const Icon(Icons.add),
  ),
  );
  }