changes done as lints 3.0.0

example/lib/main.dart

@@ -77,7 +77,7 @@ class MyApp extends StatelessWidget {
                   inactiveFgColor: Colors.white,
                   totalSwitches: 2,
                   labels: ['YES', ''],
-                  icons: [null, FontAwesomeIcons.times],
+                  icons: [null, FontAwesomeIcons.xmark],
                   onToggle: (index) {
                     print('switched to: $index');
                   },

example/pubspec.yaml

@@ -12,9 +12,10 @@ description: An example application using toggle switch widget.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 version: 2.1.0
+publish_to: none
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.12.0 <4.0.0'
 
 dependencies:
   flutter:
@@ -23,11 +24,11 @@ dependencies:
   toggle_switch:
     path: ../
 
-  font_awesome_flutter: ^10.4.0
+  font_awesome_flutter: ^10.6.0
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
-  cupertino_icons: ^0.1.2
+  cupertino_icons: ^1.0.6
 
 dev_dependencies:
   flutter_test:

lib/toggle_switch.dart

@@ -1,5 +1,4 @@
 //Credit : @Eugene (https://stackoverflow.com/questions/56340682/flutter-equvalent-android-toggle-switch)
-
 import 'package:flutter/material.dart';
 import 'dart:math';
 
@@ -287,7 +286,7 @@ class _ToggleSwitchState extends State<ToggleSwitch>
                 );
               } else {
                 /// Matches corner radius of active switch to that of border
-                var cornerRadius;
+                late BorderRadius cornerRadius;
                 if (index == 0 && !widget.isVertical) {
                   /// Checks if text direction is set right-to-left and
                   /// assigns corner radius accordingly.
@@ -397,7 +396,7 @@ class _ToggleSwitchState extends State<ToggleSwitch>
                 /// Assigns active border if available.
                 /// If only one active border is passed then we assume that we wanna
                 /// apply that active border to all the switches.
-                var activeBorder;
+                Border? activeBorder;
                 if (widget.activeBorders != null) {
                   activeBorder = widget.activeBorders!.length == 1
                       ? widget.activeBorders![0]
@@ -414,11 +413,11 @@ class _ToggleSwitchState extends State<ToggleSwitch>
                     padding: const EdgeInsets.only(left: 10.0, right: 10.0),
                     constraints: BoxConstraints(
                       maxWidth: widget.isVertical
-                          ? BoxConstraints().maxWidth
+                          ? const BoxConstraints().maxWidth
                           : _calculateWidth(index ~/ 2, totalSwitches),
                       maxHeight: widget.isVertical
                           ? _calculateHeight(index ~/ 2, totalSwitches)
-                          : BoxConstraints().maxHeight,
+                          : const BoxConstraints().maxHeight,
                     ),
                     alignment: Alignment.center,
                     decoration: BoxDecoration(
@@ -552,17 +551,17 @@ class RowToColumn extends StatelessWidget {
   Widget build(BuildContext context) {
     return ((isColumnToRow ?? false) ? isVertical : !isVertical)
         ? Row(
+            mainAxisAlignment: mainAxisAlignment ?? const Row().mainAxisAlignment,
+            mainAxisSize: mainAxisSize ?? const Row().mainAxisSize,
+            crossAxisAlignment: crossAxisAlignment ?? const Row().crossAxisAlignment,
             children: children,
-            mainAxisAlignment: mainAxisAlignment ?? Row().mainAxisAlignment,
-            mainAxisSize: mainAxisSize ?? Row().mainAxisSize,
-            crossAxisAlignment: crossAxisAlignment ?? Row().crossAxisAlignment,
           )
         : Column(
-            children: children,
-            mainAxisAlignment: mainAxisAlignment ?? Column().mainAxisAlignment,
-            mainAxisSize: mainAxisSize ?? Column().mainAxisSize,
+            mainAxisAlignment: mainAxisAlignment ?? const Column().mainAxisAlignment,
+            mainAxisSize: mainAxisSize ?? const Column().mainAxisSize,
             crossAxisAlignment:
-                crossAxisAlignment ?? Column().crossAxisAlignment,
+                crossAxisAlignment ?? const Column().crossAxisAlignment,
+            children: children,
           );
   }
 }