Error: The non-abstract class 'RawEditorState' is missing implementations for these members:

[mehrdad-shokri]

Stack trace:

Launching lib/main-dev.dart on Google Pixel 3 in debug mode...
../../../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_quill-1.0.2/lib/widgets/raw_editor.dart:112:7: Error: The non-abstract class 'RawEditorState' is missing implementations for these members:
 - TextSelectionDelegate.userUpdateTextEditingValue                     
Try to either                                                           
 - provide an implementation,                                           
 - inherit an implementation from a superclass or mixin,                
 - mark the class as abstract, or                                       
 - provide a 'noSuchMethod' implementation.                             
                                                                        
class RawEditorState extends EditorState                                
      ^^^^^^^^^^^^^^                                                    
../../../../flutter/packages/flutter/lib/src/services/text_input.dart:822:8: Context: 'TextSelectionDelegate.userUpdateTextEditingValue' is defined here.
  void userUpdateTextEditingValue(TextEditingValue value, SelectionChangedCause cause);
       ^^^^^^^^^^^^^^^^^^^^^^^^^^                                       
../../../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_quill-1.0.2/lib/widgets/raw_editor.dart:1019:8: Error: The method 'RawEditorState.hideToolbar' has fewer positional arguments than those of overridden method 'TextSelectionDelegate.hideToolbar'.
  void hideToolbar() {                                                  
       ^                                                                
../../../../flutter/packages/flutter/lib/src/services/text_input.dart:829:8: Context: This is the overridden method ('hideToolbar').
  void hideToolbar([bool hideHandles = true]);                          
       ^                                                                
                                                                        
                                                                        
FAILURE: Build failed with an exception.                                
                                                                        
* Where:                                                                
Script '/home/mehrdad/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 1029
                                                                        
* What went wrong:                                                      
Execution failed for task ':app:compileFlutterBuildDevDebug'.           
> Process 'command '/home/mehrdad/flutter/bin/flutter'' finished with non-zero exit value 1
                                                                        
* Try:                                                                  
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
                                                                        
* Get more help at https://help.gradle.org                              
                                                                        
BUILD FAILED in 1m 45s

pubspec.yml
flutter_quill: ^1.0.2

flutter doctor

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[✓] Flutter (Channel master, 2.1.0-11.0.pre.145, on Linux, locale en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.0-rc2)
[✓] Chrome - develop for the web
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[✓] IntelliJ IDEA Ultimate Edition (version 2020.3)
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• No issues found!

[singerdmx]

Mobile or web?
You need to provide more details

[suramhome]

mobile... I am facing same issue...

[singerdmx]

Seriously guys, please clarify what you did. Are you using app folder?

[singerdmx]

If you ask questions without those details, you don't deserve to get help

[suramhome]

Okay... I am a noob to Flutter.. so I just followed the instructions on pub.dev

return Scaffold(
      appBar: AppBar(
        title: Text('New Post'),
      ),
      body: Column(
        children: [
          Expanded(
            child: Container(
              child: QuillEditor.basic(
                controller: _controller,
                readOnly: false,
              ),
            ),
          ),
          QuillToolbar.basic(
            controller: _controller,
            toolbarIconSize: 25,
          ),
        ],
      ),
    );

[singerdmx]

I think I should get rid of that basic example.
Please go through README

[singerdmx]

Try to run https://github.com/singerdmx/flutter-quill/tree/master/app

[suramhome]

Thanks for quick responses.. will work on the changes needed... Appreciate all the help! Keep rocking!

[mehrdad-shokri]

@singerdmx I think that url should fix it. I also have a question about RTL does this library support it?

[singerdmx]

@mehrdad-shokri no, check out #2

[mehrdad-shokri]

@singerdmx if I work on it will you consider to add that to your lib?

[singerdmx]

Sure. Why not?

[singerdmx]

Do note that you will need to add a button in the toolbar for that

[mehrdad-shokri]

So that button is supposed to change the line's direction to RTL(and also upcoming lines)?

[singerdmx]

Check out https://quilljs.com/docs/formats/

[singerdmx]

The experience should be similar to QuillJS
Also your generated data must be the same as QuillJS generated - I mean attribute

[singerdmx]

I think it is this

[singerdmx]

You can refer to https://github.com/memspace/zefyr/pull/438/files and how align is done currently

[mehrdad-shokri]

@singerdmx I'm still having this error on my build. here's my code the only difference it had with example app was RawKeyboardListener which I have now but still facing the error.

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter_quill/models/documents/attribute.dart';
import 'package:flutter_quill/models/documents/document.dart';
import 'package:flutter_quill/widgets/controller.dart';
import 'package:flutter_quill/widgets/editor.dart';
import 'package:flutter_quill/widgets/toolbar.dart';
import 'package:shanbe/l10n/app_localizations.dart';
import 'package:shanbe/redux/models/todo.dart';
import 'package:shanbe/utils/constants.dart';
import 'package:shanbe/utils/utils.dart';
import 'package:url_launcher/url_launcher.dart';

class TodoNotePage extends StatefulWidget {
  final TodoNotePageData data;

  final Todo todo;
  final Function onTodoEdit;

  TodoNotePage(this.data)
      : todo = data.todo,
        onTodoEdit = data.onTodoEdit;

  @override
  _TodoNotePageState createState() => _TodoNotePageState();
}

class _TodoNotePageState extends State<TodoNotePage> {
  QuillController controller;
  FocusNode editorFocusNode;
  AppLocalizations t;
  ScrollController scrollController;

  @override
  void initState() {
    super.initState();
    print('${widget.todo.note}');

    controller = QuillController(
        document: widget.todo.note != null
            ? Document.fromJson(jsonDecode(widget.todo.note))
            : null,
        selection: TextSelection.collapsed(offset: 0));
    editorFocusNode = FocusNode();
    scrollController = ScrollController();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    t ??= AppLocalizations.of(context);
    return Scaffold(
        appBar: AppBar(
          title: Text(
            widget.todo.title,
            style: TextStyle(
                fontSize: Constants.MEDIUM_FONT,
                color: Constants.TEXT_COLOR,
                fontFamily: currentFontName(context)),
          ),
          backgroundColor: Theme.of(context).canvasColor,
        ),
        body: RawKeyboardListener(
          focusNode: FocusNode(),
          onKey: (RawKeyEvent event) {
            if (event.data.isControlPressed && event.character == 'b') {
              if (controller
                  .getSelectionStyle()
                  .attributes
                  .keys
                  .contains("bold")) {
                controller
                    .formatSelection(Attribute.clone(Attribute.bold, null));
              } else {
                controller.formatSelection(Attribute.bold);
                print("not bold");
              }
            }
          },
          child: Column(
            children: [
              Expanded(
                child: QuillEditor(
                  controller: controller,
                  padding: EdgeInsets.symmetric(horizontal: 8),
                  focusNode: editorFocusNode,
                  expands: true,
                  keyboardAppearance: Brightness.dark,
                  showCursor: true,
                  onLaunchUrl: _launchUrl,
                  scrollable: true,
                  autoFocus: true,
                  readOnly: false,
                  scrollController: scrollController,
                  enableInteractiveSelection: true,
                  // scrollable: false,
                ),
              ),
              Card(
                elevation: 4,
                margin: EdgeInsets.zero,
                shape: RoundedRectangleBorder(borderRadius: BorderRadius.zero),
                child: QuillToolbar.basic(
                    controller: controller, showBackgroundColorButton: true),
              )
            ],
          ),
        ));
  }

  void _launchUrl(String url) async {
    if (await canLaunch(url)) {
      await launch(url);
    }
  }
}

class TodoNotePageData {
  final Todo todo;
  final Function onTodoEdit;

  TodoNotePageData(this.todo, this.onTodoEdit);
}

[singerdmx]

Remove the difference, does it work?

[mehrdad-shokri]

Actually the problem got resolved after I switched to stable channel

[singerdmx]

Check ur flutter version

[Enzodtz]

Hey, I'm facing the same issue at flutter 2.0.6 stable, also tried at 2.2.0. I got the error after trying to Product > Archive the app in XCode, but I was able to build the android bundle normally (in other machine). What should I do?

[Enzodtz]

I tried to run from the terminal with --no-sound-null-safety and it seems to work fine.