add code highlighter example

lib/my_app_routes.dart

@@ -81,6 +81,7 @@ import 'routes/plugins_feature_discovery_ex.dart';
 import 'routes/plugins_local_auth_ex.dart';
 import 'routes/plugins_shimmer_ex.dart';
 import 'routes/plugins_webview_ex.dart';
+import 'routes/richtext_code_highlight_ex.dart';
 import 'routes/richtext_markdown_ex.dart';
 import 'routes/richtext_quill_ex.dart';
 import 'routes/state_bloc_ex.dart';
@@ -915,7 +916,7 @@ const kMyAppRoutesAdvanced = <MyRouteGroup>[
   ),
   MyRouteGroup(
     groupName: 'Rich Text',
-    icon: Icon(Icons.history_edu),
+    icon: Icon(Icons.wysiwyg),
     routes: <MyRoute>[
       MyRoute(
         child: MarkdownExample(),
@@ -929,6 +930,13 @@ const kMyAppRoutesAdvanced = <MyRouteGroup>[
         description: 'Rich text editor',
         links: {'pub.dev': 'https://pub.dev/packages/flutter_quill'},
       ),
+      MyRoute(
+        child: CodeHighlightExample(),
+        sourceFilePath: 'lib/routes/richtext_code_highlight_ex.dart',
+        title: 'Code highlight',
+        description: 'Syntax highlighting for different programming languages',
+        links: {'pub.dev': 'https://pub.dev/packages/flutter_highlight'},
+      ),
     ],
   ),
   MyRouteGroup(

lib/routes/richtext_code_highlight_ex.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_highlight/flutter_highlight.dart';
+import 'package:flutter_highlight/themes/github.dart';
+
+class CodeHighlightExample extends StatefulWidget {
+  const CodeHighlightExample({Key? key}) : super(key: key);
+
+  @override
+  State<CodeHighlightExample> createState() => _CodeHighlightExampleState();
+}
+
+const kLangToCodeSample = <String, String>{
+  'dart': '''
+main() {
+  print("Hello, World!");
+}''',
+  'python': 'print("Hello World")',
+  'cpp': '''
+#include 
+using namespace std;
+int main () {
+  cout << "Hello World!";
+  return 0;
+}''',
+  'java': '''
+class HelloWorldApp {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+    }
+}''',
+  'SQL': "SELECT Country FROM Customers WHERE Country <> 'USA'",
+};
+
+class _CodeHighlightExampleState extends State<CodeHighlightExample> {
+  @override
+  Widget build(BuildContext context) {
+    return ListView(
+      padding: const EdgeInsets.all(8),
+      children: [
+        for (final entry in kLangToCodeSample.entries)
+          Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Text(
+                'language=${entry.key}',
+                // strutStyle: Theme.of(context).textTheme.headline2,
+              ),
+              HighlightView(
+                entry.value,
+                language: entry.key,
+                theme: githubTheme,
+              ),
+              Divider(),
+            ],
+          ),
+      ],
+    );
+  }
+}

pubspec.lock

@@ -545,6 +545,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.2"
+  flutter_highlight:
+    dependency: "direct main"
+    description:
+      name: flutter_highlight
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.0"
   flutter_inappwebview:
     dependency: transitive
     description:
@@ -874,6 +881,13 @@ packages:
       url: "https://github.com/CouldI/flutter_heatmap_calendar.git"
     source: git
     version: "1.2.8"
+  highlight:
+    dependency: transitive
+    description:
+      name: highlight
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.7.0"
   hive:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -41,6 +41,7 @@ dependencies:
     sdk: flutter
   flutter_bloc: ^8.0.1
   flutter_gallery_assets: ^1.0.2
+  flutter_highlight: ^0.7.0
   flutter_markdown: ^0.6.9
   flutter_quill: ^4.1.8
   flutter_radar_chart: ^0.2.0