Markdown rule parsed as header

[gazreese]

Migrated from flutter/flutter#81760
This issue was originally filed against the official flutter_markdown package.
The package has since been discontinued and ownership transferred to flutter_markdown_plus.

---

On macOS, Markdown shows HR and HR3 following properly (HR2 is parsed as a header):

HR
---
HR2
___
HR3
***

MarkdownBody doesn't show HR or HR3 at all.

[gazreese]

@bierbaumtim commented on 2020-04-10T20:29:10Z (migrated from flutter/flutter#81760)

---

set fitContent to true should fix this. It is a Column with CrossAxisAlignment.start. Setting fitContent to true changes the alignment to CrossAxisAlignment to stretch.

[gazreese]

@AndyGaskell commented on 2020-04-28T11:19:41Z (migrated from flutter/flutter#81760)

---

Can this be fixed please. This is an issue on iOS and Android too, "-----" not rendering if accompanied by other text.

So the unit test for it in https://github.com/flutter/flutter_markdown/blob/master/test/flutter_markdown_test.dart

  testWidgets('Horizontal Rule', (WidgetTester tester) async {
    await tester.pumpWidget(_boilerplate(const MarkdownBody(data: '-----')));

    final Iterable<Widget> widgets = tester.allWidgets;
    _expectWidgetTypes(widgets, <Type>[Directionality, MarkdownBody, DecoratedBox, SizedBox]);
  });

...this passes, as a "-----" on it's own is ok, but if the "-----" is accompanied by some other content, it doe not display.

[gazreese]

@TahaTesser commented on 2021-09-02T13:49:11Z (migrated from flutter/flutter#81760)

---

Hi

Both MarkdownBody & Markdown are rendering rules now but the first rule is header instead

minimal code sample

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';
import 'package:flutter_markdown/flutter_markdown.dart';
import '../shared/markdown_demo_widget.dart';

// ignore_for_file: public_member_api_docs

const String _data = '''
# Minimal Markdown Test
---


## Usage

HR
---
HR2
___
HR3
***

''';

const String _notes = """


## Usage

HR
---
HR2
___
HR3
***


""";

class MinimalMarkdownDemo extends StatelessWidget
    implements MarkdownDemoWidget {
  const MinimalMarkdownDemo({Key? key}) : super(key: key);

  static const String _title = 'Minimal Markdown Demo';

  @override
  String get title => MinimalMarkdownDemo._title;

  @override
  String get description => 'A minimal example of how to use the Markdown '
      'widget in a Flutter app.';

  @override
  Future<String> get data => Future<String>.value(_data);

  @override
  Future<String> get notes => Future<String>.value(_notes);

  @override
  Widget build(BuildContext context) {
    return const MarkdownBody(
      data: _data,
    );
  }
}

Preview

flutter_markdown: ^0.6.6

stable	master
❗️	❗️

Check flutter doctor -v outputs for each channel below

flutter doctor -v

[✓] Flutter (Channel stable, 2.2.3, on macOS 12.0 21A5506j darwin-x64, locale en-GB)
    • Flutter version 2.2.3 at /Users/tahatesser/Code/flutter_stable
    • Framework revision f4abaa0735 (9 weeks ago), 2021-07-01 12:46:11 -0700
    • Engine revision 241c87ad80
    • Dart version 2.13.4

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/tahatesser/Code/SDK
    • Platform android-31, build-tools 30.0.3
    • ANDROID_HOME = /Users/tahatesser/Code/SDK
    • Java binary at: /Users/tahatesser/Code/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment Temurin-11.0.12+7 (build 11.0.12+7)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode-beta.app/Contents/Developer
    • Xcode 13.0, Build version 13A5212g
    • CocoaPods version 1.10.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[!] Android Studio (version 2020.3)
    • Android Studio at /Users/tahatesser/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/203.7621141/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    ✗ Unable to find bundled Java version.
    • Try updating or re-installing Android Studio.

[✓] VS Code (version 1.59.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.25.0

[✓] Connected device (3 available)
    • sdk gphone x86 (mobile) • emulator-5554 • android-x86    • Android 11 (API 30) (emulator)
    • macOS (desktop)         • macos         • darwin-x64     • macOS 12.0 21A5506j darwin-x64
    • Chrome (web)            • chrome        • web-javascript • Google Chrome 92.0.4515.159

! Doctor found issues in 1 category.

[✓] Flutter (Channel master, 2.6.0-1.0.pre.161, on macOS 12.0 21A5506j darwin-x64, locale en-GB)
    • Flutter version 2.6.0-1.0.pre.161 at /Users/tahatesser/Code/flutter_master
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 334c95dbd9 (7 hours ago), 2021-09-02 08:46:27 +0200
    • Engine revision d877a4bbcd
    • Dart version 2.15.0 (build 2.15.0-68.0.dev)

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/tahatesser/Code/SDK
    • Platform android-31, build-tools 30.0.3
    • ANDROID_HOME = /Users/tahatesser/Code/SDK
    • Java binary at: /Users/tahatesser/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/203.7621141/Android Studio.app/Contents/jre/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7281165)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 13.0)
    • Xcode at /Applications/Xcode-beta.app/Contents/Developer
    • CocoaPods version 1.10.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2020.3)
    • Android Studio at /Users/tahatesser/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/203.7621141/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7281165)

[✓] Android Studio (version 2020.3)
    • Android Studio at /Users/tahatesser/Library/Application Support/JetBrains/Toolbox/apps/AndroidStudio/ch-0/203.7583922/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.10+0-b96-7281165)

[✓] VS Code (version 1.59.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.25.0

[✓] Connected device (3 available)
    • sdk gphone x86 (mobile) • emulator-5554 • android-x86    • Android 11 (API 30) (emulator)
    • macOS (desktop)         • macos         • darwin-x64     • macOS 12.0 21A5506j darwin-x64
    • Chrome (web)            • chrome        • web-javascript • Google Chrome 92.0.4515.159

• No issues found!

✅: No Issue ❗️: Issue reproduced

[gazreese]

@github-actions commented on 2025-07-23T14:02:42Z (migrated from flutter/flutter#81760)

---

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.