Update _keyboardVisibilityController.onChange.listen

lib/widgets/raw_editor.dart

@@ -699,11 +699,11 @@ class RawEditorState extends EditorState
     _keyboardVisibilityController.onChange.listen((bool visible) {
       setState(() {
         _keyboardVisible = visible;
+      });
       if (visible) {
         _onChangeTextEditingValue();
       }
     });
-    });
 
     _focusAttachment = widget.focusNode.attach(context,
         onKey: (node, event) => _keyboardListener.handleRawKeyEvent(event));