getting cfi as null "/6/0[null]!/4/2/4" in middle

[Himanshusha673]

import 'dart:async';
import 'dart:developer';
import 'dart:io';

import 'package:epub_view/epub_view.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';

class EpubViewerPage extends StatefulWidget {
final String path;
final String lastLocation;
const EpubViewerPage(
{super.key, required this.path, required this.lastLocation});

@OverRide
State createState() => _EpubViewerPageState();
}

class _EpubViewerPageState extends State {
late EpubController _epubController;
bool darkMode = false;
StreamSubscription? _chapterIndexSubscription;
StreamSubscription? _cfiSubscription;

Future _loadFromPath(String filePath) async {
final file = File(filePath);
return await file.readAsBytes();
}

@OverRide
void initState() {
super.initState();
_epubController = EpubController(
// Load document
document: EpubReader.readBook(_loadFromPath(widget.path)),
// Set start point
epubCfi: '/6/0[null]!/4/2/4',
);
}

@OverRide
Widget build(BuildContext context) => Theme(
data: darkMode ? ThemeData.dark() : ThemeData.light(),
child: Scaffold(
appBar: AppBar(
// Show actual chapter name
title: EpubViewActualChapter(
controller: _epubController,
builder: (chapterValue) => Text(
'Chapter: ' +
(chapterValue?.chapter?.Title
?.replaceAll('\n', '')
.trim() ??
''),
textAlign: TextAlign.start,
),
),
// Add a button to the AppBar actions
actions: [
IconButton(
icon: darkMode
? const Icon(Icons.light_mode)
: const Icon(Icons.dark_mode),
onPressed: () {
setState(() {
darkMode = !darkMode;
});
// Manage the button press event here
// For example, you can open a settings screen or perform any other action
},
),
],
),
// Show table of contents
drawer: Drawer(
child: GestureDetector(
onTap: () {
Navigator.pop(context);
},
child: EpubViewTableOfContents(
controller: epubController,
loader: const CircularProgressIndicator(
color: Colors.red,
),
// itemBuilder: (context, index, chapter, itemCount) {
// return Container(
// height: 100,
// width: 100,
// color: Colors.red,
// );
// },
),
),
),
// Show epub document
body: EpubView(
builders: EpubViewBuilders(
options: const DefaultBuilderOptions(),
chapterDividerBuilder: () => const Divider(
color: Colors.red,
),
),
controller: _epubController,
onExternalLinkPressed: (href) {},
onDocumentLoaded: (document) {
log("Closed");
inspect(document);
},
onChapterChanged: (chapter) {
log("chapter changed");
String? loc = _epubController.epubCfi;
log(loc.toString());
},
onDocumentError: (error) {},
),
),
);
}

[abdulwahhab1]

When will this bug be fixed?