feat: add Flashbar extensions to BuildContext

Author: Jens Becker

README.md

@@ -21,6 +21,7 @@ The goal is that by using this package you have to write less (repeating) and mo
 - [Extensions on `List<DateTime>`](#extensions-on-listdatetime)
 - [Extensions on `BuildContext` (Adaptive helpers)](#extensions-on-buildcontext-adaptive-helpers)
 - [Extensions on `BuildContext` (Navigation helpers)](#extensions-on-buildcontext-navigation-helpers)
+- [Extensions on `BuildContext` (Flashbars)](#extensions-on-buildcontext-flashbars)
 - [Extensions on `List?`](#extensions-on-list)
 - [Extensions on `List`](#extensions-on-list-1)
 - [`Date` helper class](#date-helper-class)
@@ -111,6 +112,17 @@ All features with links to their page in the documentation:
     - #### [dismissKeyboard()](https://pub.dev/documentation/fleasy/latest/fleasy/NavigationContextExtensions/dismissKeyboard.html)
       Dismisses the keyboard.
 
+- ### Extensions on `BuildContext` (Flashbars):
+    The extensions use the awesome [flash](https://pub.dev/packages/flash) package:
+    - #### [showSuccessFlashbar(...)](https://pub.dev/documentation/fleasy/latest/fleasy/FlashbarContextExtensions/showSuccessFlashbar.html)
+      Shows a success flashbar/toast with a customizable text.
+    - #### [showInfoFlashbar(...)](https://pub.dev/documentation/fleasy/latest/fleasy/FlashbarContextExtensions/showInfoFlashbar.html)
+      Shows an info flashbar/toast with a customizable text.
+    - #### [showErrorFlashbar(...)](https://pub.dev/documentation/fleasy/latest/fleasy/FlashbarContextExtensions/showErrorFlashbar.html)
+      Shows an error flashbar/toast with a customizable text (optional).
+    - #### [showNoConnectionFlashbar()](https://pub.dev/documentation/fleasy/latest/fleasy/FlashbarContextExtensions/showNoConnectionFlashbar.html)
+      Shows a no connection flashbar/toast with a customizable text (optional).
+      
 
 - ### Extensions on `List?`:
     - #### [isNotBlank](https://pub.dev/documentation/fleasy/latest/fleasy/NullableListExtensions/isNotBlank.html)

lib/src/extensions/context_extensions.dart

@@ -1,3 +1,5 @@
+import 'package:flash/flash.dart';
+import 'package:fleasy/fleasy.dart';
 import 'package:flutter/material.dart';
 
 /// Class which defines the form factor breakpoints:
@@ -108,3 +110,98 @@ extension NavigationContextExtensions on BuildContext {
   /// (by removing the focus on this node by moving the primary focus to another node).
   void dismissKeyboard() => FocusScope.of(this).unfocus();
 }
+
+extension FlashbarContextExtensions on BuildContext {
+  void _showFlashbar(
+    String message, {
+    required Color iconColor,
+    required IconData icon,
+    int duration = 3,
+  }) {
+    showFlash<Flash>(
+      context: this,
+      duration: Duration(seconds: duration),
+      transitionDuration: const Duration(milliseconds: 750),
+      builder: (context, controller) {
+        return Flash<Flash>.bar(
+          controller: controller,
+          backgroundColor: const Color(0xFF303030),
+          borderRadius: BorderRadius.circular(10),
+          margin: const EdgeInsets.all(Insets.l),
+          child: FlashBar(
+            content: Text(
+              message,
+              style: const TextStyle(fontSize: 14.0, color: Colors.white),
+            ),
+            icon: Icon(
+              icon,
+              color: iconColor,
+              size: 28,
+            ),
+          ),
+        );
+      },
+    );
+  }
+
+  /// Shows a success flashbar/toast with a customizable text.
+  ///
+  /// It uses [flash](https://pub.dev/packages/flash).
+  void showSuccessFlashbar({
+    required String message,
+    int duration = 3,
+  }) {
+    _showFlashbar(
+      message,
+      duration: duration,
+      icon: Icons.check_rounded,
+      iconColor: Colors.green[400]!,
+    );
+  }
+
+  /// Shows an info flashbar/toast with a customizable text.
+  ///
+  /// It uses [flash](https://pub.dev/packages/flash).
+  void showInfoFlashbar({
+    required String message,
+    int duration = 3,
+  }) {
+    _showFlashbar(
+      message,
+      duration: duration,
+      icon: Icons.info_outline_rounded,
+      iconColor: Colors.blue[400]!,
+    );
+  }
+
+  /// Shows an error flashbar/toast with a customizable text (optional).
+  ///
+  /// It uses [flash](https://pub.dev/packages/flash).
+  void showErrorFlashbar({
+    String message = 'Oops, something went wrong.',
+    int duration = 3,
+  }) {
+    _showFlashbar(
+      message,
+      duration: duration,
+      icon: Icons.error_outline_rounded,
+      iconColor: Colors.red[400]!,
+    );
+  }
+
+  /// Shows a no connection flashbar/toast with a customizable text (optional).
+  ///
+  /// It uses [flash](https://pub.dev/packages/flash).
+  void showNoConnectionFlashbar({
+    String message =
+        'A connection to the server cannot be established. Are you connected to the internet?',
+    int duration = 3,
+  }) {
+    _showFlashbar(
+      message,
+      duration: duration,
+      icon: Icons.wifi_off_rounded,
+      iconColor: Colors.red[400]!,
+    );
+  }
+}

pubspec.yaml

@@ -14,10 +14,9 @@ dependencies:
   intl: ^0.17.0
   universal_platform: ^1.0.0+1
   font_awesome_flutter: ^9.1.0
+  flash: ^2.0.1
 
 dev_dependencies:
   test: ^1.17.8
   flutter_lints: ^1.0.3
-  dart_code_metrics: ^4.0.0
-
-
+  dart_code_metrics: ^4.0.0