Updated with minor changes.

README.md

@@ -138,6 +138,20 @@
 
 </table>
 
+# Color Constants
+
+<table>
+  <tr>
+    <td><img src="github/images/constants/sc1.png" width=900 height=250></td>
+  </tr>
+  <tr>
+    <td><img src="github/images/constants/sc3.png" width=900 height=100></td>
+  </tr>
+   <tr>
+    <td><img src="github/images/constants/sc2.png" width=900 height=200></td>
+  </tr>
+</table>
+
 
 # Divider
 
@@ -233,4 +247,4 @@
     <td><img src="github\images\stacked_images\stackedimg.png" width=270 height=480></td>
   </tr>
 
-</table>
+</table>

lib/atomic/button/asynchronous_button.dart

@@ -1,8 +1,11 @@
 import 'package:flutter/material.dart';
+import 'package:ready_to_use_widgets/core/init/constants/color_constant.dart';
 
 final buttonStyle = ButtonStyle(
-  shape: MaterialStateProperty.all(RoundedRectangleBorder(borderRadius: BorderRadius.circular(10))),
-  backgroundColor: MaterialStateProperty.all(const Color.fromARGB(255, 229, 78, 118)),
+  shape: MaterialStateProperty.all(
+      RoundedRectangleBorder(borderRadius: BorderRadius.circular(10))),
+  backgroundColor:
+      MaterialStateProperty.all(const Color.fromARGB(255, 229, 78, 118)),
   minimumSize: MaterialStateProperty.all(const Size(200, 50)),
 );
 
@@ -23,7 +26,6 @@ class AsynchronousButton extends StatefulWidget {
 }
 
 class _AsynchronousButtonState extends State<AsynchronousButton> {
-
   bool _isButtonBusy = false;
   void _updateButtonState() => setState(() => _isButtonBusy = !_isButtonBusy);
 
@@ -38,7 +40,10 @@ class _AsynchronousButtonState extends State<AsynchronousButton> {
           await widget.onPressed();
           _updateButtonState();
         },
-        child: Center(child: _isButtonBusy ? const _BusyWidget() : _ButtonText(buttonText: widget.buttonText)),
+        child: Center(
+            child: _isButtonBusy
+                ? const _BusyWidget()
+                : _ButtonText(buttonText: widget.buttonText)),
         style: buttonStyle,
       ),
     );
@@ -52,7 +57,7 @@ class _BusyWidget extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const CircularProgressIndicator(color: Colors.white);
+    return const CircularProgressIndicator(color: ColorConstants.white);
   }
 }
 
@@ -68,7 +73,7 @@ class _ButtonText extends StatelessWidget {
   Widget build(BuildContext context) {
     return Text(
       buttonText,
-      style: const TextStyle(color: Colors.white),
+      style: const TextStyle(color: ColorConstants.white),
       textAlign: TextAlign.center,
     );
   }

lib/atomic/button/custom_elevated_button.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:ready_to_use_widgets/core/init/constants/color_constant.dart';
 
 // WIDGET DESCRIPTION
 // It is a widget where you can set your button as you want and make new widgets for your own buttons.
@@ -14,7 +15,13 @@ class CustomElevatedButton extends StatelessWidget {
   final VoidCallback? onPressed;
 
   const CustomElevatedButton(
-      {Key? key, this.color, this.height, this.width, this.borderRadius, this.onPressed, required this.child})
+      {Key? key,
+      this.color,
+      this.height,
+      this.width,
+      this.borderRadius,
+      this.onPressed,
+      required this.child})
       : super(key: key);
 
   @override
@@ -25,7 +32,8 @@ class CustomElevatedButton extends StatelessWidget {
       child: ElevatedButton(
           onPressed: onPressed,
           style: ButtonStyle(
-            backgroundColor: MaterialStateProperty.all(color ?? Colors.pink),
+            backgroundColor:
+                MaterialStateProperty.all(color ?? ColorConstants.amaranth),
             shape: MaterialStateProperty.all<RoundedRectangleBorder>(
               RoundedRectangleBorder(
                 borderRadius: BorderRadius.circular(borderRadius ?? 2),

lib/atomic/circular_progress/loading_circular_progress.dart

@@ -1,5 +1,5 @@
-
 import 'package:flutter/material.dart';
+import 'package:ready_to_use_widgets/core/init/constants/color_constant.dart';
 
 class LoadingCircular extends StatelessWidget {
   final dynamic progress;
@@ -29,7 +29,7 @@ class LoadingCircular extends StatelessWidget {
           width: width,
           height: height,
           child: CircularProgressIndicator(
-            backgroundColor: Colors.white70,
+            backgroundColor: ColorConstants.white70,
             value: progress,
             color: color,
             strokeWidth: 3.0,

lib/atomic/glow_image/example_glow_image.dart

@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 import 'glow_image.dart';
 
 class ExampleGlowImage extends StatefulWidget {
-  ExampleGlowImage({Key? key}) : super(key: key);
+  const ExampleGlowImage({Key? key}) : super(key: key);
 
   @override
   State<ExampleGlowImage> createState() => _ExampleGlowImageState();
@@ -14,8 +14,7 @@ class _ExampleGlowImageState extends State<ExampleGlowImage> {
 
   @override
   Widget build(BuildContext context) {
-    final size = MediaQuery.of(context).size;
-    final _width = 300.0;
+    const _width = 300.0;
     return Scaffold(
       body: SafeArea(
         child: Column(
@@ -30,9 +29,9 @@ class _ExampleGlowImageState extends State<ExampleGlowImage> {
                 child: AnimatedContainer(
                   curve: Curves.easeInOutBack,
                   width: tapped ? _width : _width * 0.8,
-                  duration: Duration(milliseconds: 450),
+                  duration: const Duration(milliseconds: 450),
                   child: GlowImage(
-                    child: Photo()
+                    child: const Photo()
                     // Container(
                     //   width: _width,
                     //   color: Colors.green,

lib/atomic/group_checkbox/example/group_checkbox_example_view.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:ready_to_use_widgets/core/init/constants/color_constant.dart';
 
 import '../model/abstract_checkbox_item.dart';
 import '../model/city_model.dart';
@@ -10,7 +11,8 @@ class GroupCheckboxExampleView extends StatefulWidget {
   }) : super(key: key);
 
   @override
-  State<GroupCheckboxExampleView> createState() => _GroupCheckboxExampleViewState();
+  State<GroupCheckboxExampleView> createState() =>
+      _GroupCheckboxExampleViewState();
 }
 
 class _GroupCheckboxExampleViewState extends State<GroupCheckboxExampleView> {
@@ -20,8 +22,10 @@ class _GroupCheckboxExampleViewState extends State<GroupCheckboxExampleView> {
   ICheckBoxItem? initialItem;
   ICheckBoxItem? lastSelectedItem;
 
-  TextStyle contentTextStyle = const TextStyle(fontSize: 24, color: Colors.red);
-  TextStyle titleTextStyle = const TextStyle(fontSize: 32, color: Colors.black);
+  TextStyle contentTextStyle =
+      const TextStyle(fontSize: 24, color: ColorConstants.pomegranate);
+  TextStyle titleTextStyle =
+      const TextStyle(fontSize: 32, color: ColorConstants.black);
 
   @override
   void initState() {
@@ -50,8 +54,10 @@ class _GroupCheckboxExampleViewState extends State<GroupCheckboxExampleView> {
                 });
               },
               allSelectedItemList: (List<ICheckBoxItem>? allSelectedItems) {
-                debugPrint('All selected items lenght : ${allSelectedItems?.length}');
-                debugPrint('All selected items : ${allSelectedItems?.toString()}');
+                debugPrint(
+                    'All selected items lenght : ${allSelectedItems?.length}');
+                debugPrint(
+                    'All selected items : ${allSelectedItems?.toString()}');
                 _allSelectedItemList = allSelectedItems;
                 setState(() {});
               },
@@ -76,7 +82,9 @@ class _GroupCheckboxExampleViewState extends State<GroupCheckboxExampleView> {
                   _isMultiSelectEnable = !_isMultiSelectEnable;
                 });
               },
-              child: Text(_isMultiSelectEnable ? 'Multi Select Enabled' : 'Multi Select Disabled'),
+              child: Text(_isMultiSelectEnable
+                  ? 'Multi Select Enabled'
+                  : 'Multi Select Disabled'),
               style: ButtonStyle(
                   backgroundColor: MaterialStateProperty.all(
                     _isMultiSelectEnable ? Colors.green : Colors.red,
@@ -104,7 +112,7 @@ class _GroupCheckboxExampleViewState extends State<GroupCheckboxExampleView> {
               itemCount: _cityList.length,
               itemBuilder: (context, index) {
                 return InkWell(
-                  hoverColor: Colors.black,
+                  hoverColor: ColorConstants.black,
                   onTap: () {
                     setState(() {
                       _allSelectedItemList?.clear();

lib/atomic/snackbar/custom_snackbar.dart

@@ -1,20 +1,28 @@
 import 'package:flutter/material.dart';
-
+import 'package:ready_to_use_widgets/core/init/constants/color_constant.dart';
 
 class CustomSnackBar {
-  static void showSnackBar(BuildContext context,String message,{TextStyle? messageStyle,double? margin,Duration? duration,SnackBarAction? action,Color? color,BorderRadius? radius}) {
+  static void showSnackBar(BuildContext context, String message,
+      {TextStyle? messageStyle,
+      double? margin,
+      Duration? duration,
+      SnackBarAction? action,
+      Color? color,
+      BorderRadius? radius}) {
     var snackbar = SnackBar(
-      content: Text(message,
-        style: messageStyle ?? const TextStyle(
-          color: Colors.white
-        ),
+      content: Text(
+        message,
+        style: messageStyle ??
+            const TextStyle(
+              color: ColorConstants.white,
+            ),
       ),
-      margin:  EdgeInsets.all(margin ?? 10),
-      duration: duration ??const Duration(seconds: 3),
+      margin: EdgeInsets.all(margin ?? 10),
+      duration: duration ?? const Duration(seconds: 3),
       action: action,
       behavior: SnackBarBehavior.floating,
       shape: RoundedRectangleBorder(
-        borderRadius:radius ?? BorderRadius.circular(10),
+        borderRadius: radius ?? BorderRadius.circular(10),
       ),
       backgroundColor: color ?? Colors.redAccent,
     );

lib/core/init/constants/color_constant.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+// Çalışma Mantığı
+// Kullanacağımız renk kodunu ismiyle birlikte buraya ekliyoruz.
+// Daha sonra buradaki rengi kullanacağımız widget içine önce bu file import ediyoruz.
+// Import ettikten sonra rengi kullanacağımız satıra gelip 'ColorConstants.white' örneği gibi istediğimiz rengi ekliyoruz. Detaylar Readme.md
+class ColorConstants {
+  static const Color black = Color(0xFF000000);
+  static const Color white = Color(0xFFffffff);
+  static const Color white70 = Color(0xB3FFFFFF);
+  static const Color amaranth = Color(0xFFE91E63);
+  static const Color pomegranate = Color(0xFFE91E63);
+  static const Color dodgerBlue = Color(0xFF2196F3);
+  static const Color fruitSalad = Color(0xFF4CAF50);
+}

lib/core/init/theme/base/base_theme.dart

@@ -0,0 +1,7 @@
+import 'package:flutter/material.dart';
+
+abstract class BaseTheme {
+  ThemeData get themeData;
+
+  TextStyle get customSnackBar;
+}

lib/core/init/theme/dark_theme.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/material.dart';
+import 'package:ready_to_use_widgets/core/init/theme/base/base_theme.dart';
+
+class DarkTheme extends BaseTheme {
+  static DarkTheme? _instance;
+
+  static DarkTheme? get instance {
+    if (_instance != null) return _instance;
+    _instance = DarkTheme._init();
+    return _instance;
+  }
+
+  DarkTheme._init();
+
+  @override
+  ThemeData get themeData => throw UnimplementedError();
+
+  @override
+  TextStyle get customSnackBar => throw UnimplementedError();
+}

lib/core/init/theme/enum/theme_enum.dart

@@ -0,0 +1,31 @@
+enum AppTheme { dark, light }
+
+extension AppThemeExtension on AppTheme {
+  String get appThemeToString {
+    switch (this) {
+      case AppTheme.dark:
+        return 'AppTheme.DARK';
+      case AppTheme.light:
+        return 'AppTheme.LIGHT';
+      default:
+        {
+          return 'AppTheme.LIGHT';
+        }
+    }
+  }
+}
+
+extension AppThemeStringExtension on String {
+  AppTheme get stringToAppTheme {
+    switch (this) {
+      case 'AppTheme.DARK':
+        return AppTheme.dark;
+      case 'AppTheme.LIGHT':
+        return AppTheme.light;
+      default:
+        {
+          return AppTheme.light;
+        }
+    }
+  }
+}

lib/core/init/theme/light_theme.dart

@@ -0,0 +1,31 @@
+import 'package:flutter/material.dart';
+import 'package:google_fonts/google_fonts.dart';
+import 'package:ready_to_use_widgets/atomic/beauty_textfield/beauty_textfield.dart';
+import 'package:ready_to_use_widgets/core/init/constants/color_constant.dart';
+import 'package:ready_to_use_widgets/core/init/theme/base/base_theme.dart';
+
+class LightTheme extends BaseTheme {
+  static LightTheme? _instance;
+
+  static LightTheme? get instance {
+    if (_instance != null) return _instance;
+    _instance = LightTheme._init();
+    return _instance;
+  }
+
+  LightTheme._init();
+
+  @override
+  ThemeData get themeData => throw UnimplementedError();
+
+  // Örnek olarak yapılmıştır.
+
+  @override
+  TextStyle get customSnackBar => GoogleFonts.ubuntu(
+        textStyle: const TextStyle(
+          fontSize: 16,
+          fontWeight: FontWeight.bold,
+          color: ColorConstants.dodgerBlue,
+        ),
+      );
+}