✨ Dart 3 Support (#146)

- Added dart 3 support for the package and the example app.
- Added flutter_lints for code analysis of the package.
- Solved lints warnings.

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Fixed credit card padding in RTL [#139](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/pull/139).
 - Fixed [#138](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/issues/138) 
   AutoValidateMode only applied to Card Number text field.
+- Added dart 3 support [#146](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/pull/146).
 
 # [3.0.7](https://github.com/SimformSolutionsPvtLtd/flutter_credit_card/tree/3.0.7)
 

analysis_options.yaml

@@ -17,10 +17,9 @@
 #
 # This file contains the analysis options used by Flutter tools, such as IntelliJ,
 # Android Studio, and the `flutter analyze` command.
+include: package:flutter_lints/flutter.yaml
 
 analyzer:
-  strong-mode:
-    implicit-dynamic: false
   errors:
     # treat missing required parameters as a warning (not a hint)
     missing_required_param: warning
@@ -32,12 +31,8 @@ analyzer:
     # Stream and not importing dart:async
     # Please see https://github.com/flutter/flutter/pull/24528 for details.
     sdk_version_async_exported_from_core: ignore
-  exclude:
-    - 'bin/cache/**'
-    # the following two are relative to the stocks example and the flutter package respectively
-    # see https://github.com/dart-lang/sdk/issues/28463
-    - 'lib/i18n/stock_messages_*.dart'
-    - 'lib/src/http/**'
+  language:
+    strict-raw-types: true
 
 linter:
   rules:
@@ -173,4 +168,4 @@ linter:
     # - use_string_buffers # has false positives: https://github.com/dart-lang/sdk/issues/34182
     # - use_to_and_as_if_applicable # has false positives, so we prefer to catch this by code-review
     - valid_regexps
-    # - void_checks # not yet tested
+    # - void_checks # not yet tested

example/lib/main.dart

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

example/pubspec.yaml

@@ -14,7 +14,7 @@ publish_to: none
 version: 1.0.0+1
 
 environment:
-  sdk: ">=2.17.0 <3.0.0"
+  sdk: ">=2.17.0 <4.0.0"
 
 dependencies:
   flutter:

lib/credit_card_animation.dart

@@ -4,6 +4,7 @@ class AnimationCard extends StatelessWidget {
   const AnimationCard({
     required this.child,
     required this.animation,
+    super.key,
   });
 
   final Widget child;

lib/credit_card_form.dart

@@ -165,7 +165,7 @@ class CreditCardForm extends StatefulWidget {
   final bool disableCardNumberAutoFillHints;
 
   @override
-  _CreditCardFormState createState() => _CreditCardFormState();
+  State<CreditCardForm> createState() => _CreditCardFormState();
 }
 
 class _CreditCardFormState extends State<CreditCardForm> {
@@ -305,7 +305,7 @@ class _CreditCardFormState extends State<CreditCardForm> {
                           if (_expiryDateController.text
                               .startsWith(RegExp('[2-9]'))) {
                             _expiryDateController.text =
-                                '0' + _expiryDateController.text;
+                                '0${_expiryDateController.text}';
                           }
                           setState(() {
                             expiryDate = _expiryDateController.text;
@@ -369,9 +369,9 @@ class _CreditCardFormState extends State<CreditCardForm> {
                         controller: _cvvCodeController,
                         cursorColor: widget.cursorColor ?? themeColor,
                         onEditingComplete: () {
-                          if (widget.isHolderNameVisible)
+                          if (widget.isHolderNameVisible) {
                             FocusScope.of(context).requestFocus(cardHolderNode);
-                          else {
+                          } else {
                             FocusScope.of(context).unfocus();
                             onCreditCardModelChange(creditCardModel);
                             widget.onFormComplete?.call();

lib/credit_card_widget.dart

@@ -16,7 +16,7 @@ import 'floating_animation/floating_event.dart';
 import 'flutter_credit_card_platform_interface.dart';
 import 'glassmorphism_config.dart';
 
-const Map<CardType, String> CardTypeIconAsset = <CardType, String>{
+const Map<CardType, String> cardTypeIconAsset = <CardType, String>{
   CardType.visa: 'icons/visa.png',
   CardType.rupay: 'icons/rupay.png',
   CardType.americanExpress: 'icons/amex.png',
@@ -181,7 +181,7 @@ class CreditCardWidget extends StatefulWidget {
 
   /// floating animation enabled/disabled
   @override
-  _CreditCardWidgetState createState() => _CreditCardWidgetState();
+  State<CreditCardWidget> createState() => _CreditCardWidgetState();
 }
 
 class _CreditCardWidgetState extends State<CreditCardWidget>
@@ -441,23 +441,20 @@ class _CreditCardWidgetState extends State<CreditCardWidget>
 
     String number = widget.cardNumber;
     if (widget.obscureCardNumber) {
-      final String stripped = number.replaceAll(RegExp(r'[^\d]'), '');
+      final String stripped = number.replaceAll(RegExp(r'\D'), '');
       if (widget.obscureInitialCardNumber && stripped.length > 4) {
         final String start = number
             .substring(0, number.length - 5)
             .trim()
             .replaceAll(RegExp(r'\d'), '*');
-        number = start + ' ' + stripped.substring(stripped.length - 4);
+        number = '$start ${stripped.substring(stripped.length - 4)}';
       } else if (stripped.length > 8) {
         final String middle = number
             .substring(4, number.length - 5)
             .trim()
             .replaceAll(RegExp(r'\d'), '*');
-        number = stripped.substring(0, 4) +
-            ' ' +
-            middle +
-            ' ' +
-            stripped.substring(stripped.length - 4);
+        number =
+            '${stripped.substring(0, 4)} $middle ${stripped.substring(stripped.length - 4)}';
       }
     }
 
@@ -889,7 +886,7 @@ class _CreditCardWidgetState extends State<CreditCardWidget>
       return customCardTypeIcon.first.cardImage;
     } else {
       return Image.asset(
-        CardTypeIconAsset[cardType]!,
+        cardTypeIconAsset[cardType]!,
         height: 48,
         width: 48,
         package: 'flutter_credit_card',
@@ -917,7 +914,7 @@ class _CreditCardWidgetState extends State<CreditCardWidget>
         case CardType.elo:
         case CardType.hipercard:
           icon = Image.asset(
-            CardTypeIconAsset[ccType]!,
+            cardTypeIconAsset[ccType]!,
             height: 48,
             width: 48,
             package: 'flutter_credit_card',
@@ -927,7 +924,7 @@ class _CreditCardWidgetState extends State<CreditCardWidget>
 
         case CardType.americanExpress:
           icon = Image.asset(
-            CardTypeIconAsset[ccType]!,
+            cardTypeIconAsset[ccType]!,
             height: 48,
             width: 48,
             package: 'flutter_credit_card',
@@ -936,10 +933,7 @@ class _CreditCardWidgetState extends State<CreditCardWidget>
           break;
 
         default:
-          icon = Container(
-            height: 48,
-            width: 48,
-          );
+          icon = const SizedBox(height: 48, width: 48);
           isAmex = false;
           break;
       }

pubspec.yaml

@@ -18,7 +18,7 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-  flutter_lints: ^2.0.1
+  flutter_lints: ^2.0.3
 
 flutter:
   plugin: