main.dart
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import 'dart:developer';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:tex_markdown/tex_markdown.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
ThemeMode _themeMode = ThemeMode.system;
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Flutter Demo',
themeMode: _themeMode,
theme: ThemeData(
useMaterial3: true,
brightness: Brightness.light,
colorSchemeSeed: Colors.blue,
),
darkTheme: ThemeData(
useMaterial3: true,
brightness: Brightness.dark,
colorSchemeSeed: Colors.blue,
),
home: MyHomePage(
title: 'Flutter Demo Home Page',
onPressed: () {
setState(() {
_themeMode = ThemeMode.values[(_themeMode.index + 1) % 3];
});
},
),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title, required this.onPressed});
final VoidCallback? onPressed;
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final TextEditingController _controller = TextEditingController(text: r'''
# hi how are you?$my is^2$
## hi how are you$(\frac ab)^2$?
### hi how are you?
#### hi how are you?
##### hi how are you?$my name is x^2$
###### hi how are you?$x^2$
hello
---
my name is
**bold$x^2\cfrac a{\cfrac ab}$ text**
*Italic text$x^2\cfrac a{b}$*
**hello**
$hello$
$sdf\frac a{\frac ab}$
$hello$
[Link]()
- unordered list
1. ordered list 1
2. ordered list 2
(x) Radio checked
() Radio unchecked
[x] checkbox checked
[] Checkbox unchecked
| Name | Country |
| Sohag | Bangladesh |
''');
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
actions: [
IconButton(
onPressed: widget.onPressed,
icon: const Icon(Icons.sunny),
),
],
),
body: Column(
children: [
Expanded(
child: ListView(
children: [
AnimatedBuilder(
animation: _controller,
builder: (context, _) {
return TexMarkdown(
_controller.text,
onLinkTab: (url, title) {
log(title, name: "title");
log(url, name: "url");
},
style: const TextStyle(
color: Colors.green,
),
);
}),
],
),
),
ConstrainedBox(
constraints: const BoxConstraints(maxHeight: 200),
child: Stack(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: TextField(
decoration: const InputDecoration(
border: OutlineInputBorder(),
label: Text("Type here:")),
maxLines: null,
controller: _controller,
),
),
IconButton(
onPressed: () {
String html = '''<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"><title>markdown</title><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.css" integrity="sha384-zB1R0rpPzHqg7Kpt0Aljp8JPLqbXI3bhnPWROx27a9N0Ll6ZP/+DiW/UqRcLbRjq" crossorigin="anonymous">
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/katex.min.js" integrity="sha384-y23I5Q6l+B6vatafAwxRu/0oK/79VlbSz7Q9aiSZUvyWYIYsd+qj+o24G5ZU2zJz" crossorigin="anonymous"></script>
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.11.1/dist/contrib/auto-render.min.js" integrity="sha384-kWPLUVMOks5AQFrykwIup5lo0m3iMkkHrD0uJ4H5cjeGihAutqP0yW0J6dpFiVkI" crossorigin="anonymous" onload="renderMathInElement(document.body);"></script>
</head>
<body>
${TexMarkdown.toHtml(_controller.text)}
</body>
</html>
''';
Clipboard.setData(ClipboardData(text: html));
},
icon: const Icon(Icons.html),
),
],
),
),
],
),
);
}
}