migrate to code analyze flutter_lints

Author: aissat

analysis_options.yaml

@@ -1,2 +1,3 @@
 #https://dart.dev/guides/language/analysis-options
 #include: package:pedantic/analysis_options.yaml
+include: package:flutter_lints/flutter.yaml

bin/generate.dart

@@ -219,7 +219,7 @@ String _resolve(Map<String, dynamic> translations, bool? skipUnnecessaryKeys,
     if (!_preservedKeywords.contains(key)) {
       accKey != null && !ignoreKey
           ? fileContent +=
-              '  static const ${accKey.replaceAll('.', '_')}\_$key = \'$accKey.$key\';\n'
+              '  static const ${accKey.replaceAll('.', '_')}_$key = \'$accKey.$key\';\n'
           : !ignoreKey
               ? fileContent += '  static const $key = \'$key\';\n'
               : null;
@@ -260,12 +260,12 @@ class CodegenLoader extends AssetLoader{
 
     Map<String, dynamic>? data = json.decode(await fileData.readAsString());
 
-    final mapString = JsonEncoder.withIndent('  ').convert(data);
+    final mapString = const JsonEncoder.withIndent('  ').convert(data);
     gFile += 'static const Map<String,dynamic> $localeName = $mapString;\n';
   }
 
   gFile +=
-      'static const Map<String, Map<String,dynamic>> mapLocales = \{${listLocales.join(', ')}\};';
+      'static const Map<String, Map<String,dynamic>> mapLocales = {${listLocales.join(', ')}};';
   classBuilder.writeln(gFile);
 }
 

lib/src/easy_localization_app.dart

@@ -94,8 +94,10 @@ class EasyLocalization extends StatefulWidget {
   }
 
   @override
+  // ignore: library_private_types_in_public_api
   _EasyLocalizationState createState() => _EasyLocalizationState();
 
+  // ignore: library_private_types_in_public_api
   static _EasyLocalizationProvider? of(BuildContext context) =>
       _EasyLocalizationProvider.of(context);
 
@@ -207,11 +209,11 @@ class _EasyLocalizationProvider extends InheritedWidget {
   // Locale get startLocale => parent.startLocale;
 
   /// Change app locale
-  Future<void> setLocale(Locale _locale) async {
+  Future<void> setLocale(Locale locale) async {
     // Check old locale
-    if (_locale != _localeState.locale) {
-      assert(parent.supportedLocales.contains(_locale));
-      await _localeState.setLocale(_locale);
+    if (locale != _localeState.locale) {
+      assert(parent.supportedLocales.contains(locale));
+      await _localeState.setLocale(locale);
     }
   }
 

lib/src/easy_localization_controller.dart

@@ -88,7 +88,8 @@ class EasyLocalizationController extends ChangeNotifier {
       if (useFallbackTranslations && _fallbackLocale != null) {
         Map<String, dynamic>? baseLangData;
         if (_locale.countryCode != null && _locale.countryCode!.isNotEmpty) {
-          baseLangData = await loadBaseLangTranslationData(Locale(locale.languageCode));
+          baseLangData =
+              await loadBaseLangTranslationData(Locale(locale.languageCode));
         }
         data = await loadTranslationData(_fallbackLocale!);
         if (baseLangData != null) {
@@ -103,7 +104,8 @@ class EasyLocalizationController extends ChangeNotifier {
     }
   }
 
-  Future<Map<String, dynamic>?> loadBaseLangTranslationData(Locale locale) async {
+  Future<Map<String, dynamic>?> loadBaseLangTranslationData(
+      Locale locale) async {
     try {
       return await loadTranslationData(Locale(locale.languageCode));
     } on FlutterError catch (e) {
@@ -133,24 +135,24 @@ class EasyLocalizationController extends ChangeNotifier {
 
   Future<void> _saveLocale(Locale? locale) async {
     if (!saveLocale) return;
-    final _preferences = await SharedPreferences.getInstance();
-    await _preferences.setString('locale', locale.toString());
+    final preferences = await SharedPreferences.getInstance();
+    await preferences.setString('locale', locale.toString());
     EasyLocalization.logger('Locale $locale saved');
   }
 
   static Future<void> initEasyLocation() async {
-    final _preferences = await SharedPreferences.getInstance();
-    final _strLocale = _preferences.getString('locale');
-    _savedLocale = _strLocale != null ? _strLocale.toLocale() : null;
-    final _foundPlatformLocale = await findSystemLocale();
-    _deviceLocale = _foundPlatformLocale.toLocale();
+    final preferences = await SharedPreferences.getInstance();
+    final strLocale = preferences.getString('locale');
+    _savedLocale = strLocale?.toLocale();
+    final foundPlatformLocale = await findSystemLocale();
+    _deviceLocale = foundPlatformLocale.toLocale();
     EasyLocalization.logger.debug('Localization initialized');
   }
 
   Future<void> deleteSaveLocale() async {
     _savedLocale = null;
-    final _preferences = await SharedPreferences.getInstance();
-    await _preferences.remove('locale');
+    final preferences = await SharedPreferences.getInstance();
+    await preferences.remove('locale');
     EasyLocalization.logger('Saved locale deleted');
   }
 

lib/src/localization.dart

@@ -95,7 +95,9 @@ class Localization {
 
   String _replaceArgs(String res, List<String>? args) {
     if (args == null || args.isEmpty) return res;
-    args.forEach((String str) => res = res.replaceFirst(_replaceArgRegex, str));
+    for (var str in args) {
+      res = res.replaceFirst(_replaceArgRegex, str);
+    }
     return res;
   }
 
@@ -119,8 +121,8 @@ class Localization {
     String? name,
     NumberFormat? format,
   }) {
-    late var pluralCase;
-    late var res;
+    late PluralCase pluralCase;
+    late String res;
     var pluralRule = _pluralRule(_locale.languageCode, value);
     switch (value) {
       case 0:
@@ -169,7 +171,7 @@ class Localization {
   }
 
   String _gender(String key, {required String gender}) {
-    return _resolve(key + '.$gender');
+    return _resolve('$key.$gender');
   }
 
   String _resolvePlural(String key, String subKey) {

lib/src/public.dart

@@ -37,7 +37,8 @@ String tr(
   Map<String, String>? namedArgs,
   String? gender,
 }) {
-  return Localization.instance.tr(key, args: args, namedArgs: namedArgs, gender: gender);
+  return Localization.instance
+      .tr(key, args: args, namedArgs: namedArgs, gender: gender);
 }
 
 /// {@template plural}

lib/src/widgets.dart

@@ -2,35 +2,36 @@ import 'package:flutter/material.dart';
 
 class FutureErrorWidget extends StatelessWidget {
   final String msg;
-  const FutureErrorWidget({this.msg = 'Loading ...'});
+  const FutureErrorWidget({Key? key, this.msg = 'Loading ...'})
+      : super(key: key);
   @override
   Widget build(BuildContext context) {
     return Container(
       color: Colors.white,
       child: Column(mainAxisAlignment: MainAxisAlignment.center, children: [
-        Icon(
+        const Icon(
           Icons.error_outline,
           color: Colors.red,
           size: 64,
           textDirection: TextDirection.ltr,
         ),
-        SizedBox(height: 20),
-        Text(
+        const SizedBox(height: 20),
+        const Text(
           'Easy Localization:',
           textAlign: TextAlign.center,
           textDirection: TextDirection.ltr,
           style: TextStyle(
               fontWeight: FontWeight.w700, color: Colors.red, fontSize: 25.0),
         ),
-        SizedBox(height: 10),
+        const SizedBox(height: 10),
         Text(
           '"$msg"',
           textAlign: TextAlign.center,
           textDirection: TextDirection.ltr,
-          style: TextStyle(
+          style: const TextStyle(
               fontWeight: FontWeight.w500, color: Colors.red, fontSize: 14.0),
         ),
-        SizedBox(height: 30),
+        const SizedBox(height: 30),
         // Center(
         //   child: CircularProgressIndicator()
         // ),