feat: start local server for iOS

lib/src/rendering/rich_editor.dart

@@ -14,6 +14,7 @@ class _RichEditorState extends State<RichEditor> {
   WebViewController? _controller;
   String text = "";
   final Key _mapKey = UniqueKey();
+  String assetPath = 'packages/rich_editor/assets/editor/editor.html';
 
   int port = 5321;
   LocalServer? localServer;
@@ -22,6 +23,41 @@ class _RichEditorState extends State<RichEditor> {
   void initState() {
     super.initState();
     if (Platform.isAndroid) WebView.platform = SurfaceAndroidWebView();
+    if (!Platform.isAndroid) {
+      initServer();
+    }
+  }
+
+  initServer() {
+    localServer = LocalServer(port);
+    localServer!.start(handleRequest);
+  }
+
+  void handleRequest(HttpRequest request) {
+    try {
+      if (request.method == 'GET' &&
+          request.uri.queryParameters['query'] == "getRawTeXHTML") {
+      } else {}
+    } catch (e) {
+      print('Exception in handleRequest: $e');
+    }
+  }
+
+
+  @override
+  void dispose() {
+    if (_controller != null) {
+      _controller = null;
+    }
+    if (!Platform.isAndroid) {
+      localServer!.close();
+    }
+    super.dispose();
+  }
+
+  _loadHtmlFromAssets() async {
+    final filePath = assetPath;
+    _controller!.loadUrl("http://localhost:$port/$filePath");
   }
 
   @override
@@ -31,14 +67,24 @@ class _RichEditorState extends State<RichEditor> {
         GroupedTab(controller: _controller),
         Flexible(
           child: WebView(
-            initialUrl:
-                'file:///android_asset/flutter_assets/packages/rich_editor/assets/editor/editor.html',
+            key: _mapKey,
+            // initialUrl:
+            //     'file:///android_asset/flutter_assets/packages/rich_editor/assets/editor/editor.html',
             onWebViewCreated: (WebViewController controller) {
               _controller = controller;
               print('WebView created');
               setState(() {});
+              if (!Platform.isAndroid) {
+                print('Loading');
+                _loadHtmlFromAssets();
+              } else {
+                _controller!.loadUrl('file:///android_asset/flutter_assets/$assetPath');
+              }
             },
             javascriptMode: JavascriptMode.unrestricted,
+            onWebResourceError: (e) {
+              print("error ${e.description}");
+            },
           ),
           // child: InAppWebView(
           //   initialFile: 'packages/rich_editor/assets/editor/index.html',