https://github.com/uk0/flutter_markdown_extension_demo
flutter 学习中使用的一个小插件的扩展。
https://github.com/uk0/flutter_markdown_extension_demo
Last synced: 4 months ago
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flutter 学习中使用的一个小插件的扩展。
- Host: GitHub
- URL: https://github.com/uk0/flutter_markdown_extension_demo
- Owner: uk0
- License: apache-2.0
- Created: 2024-11-29T06:06:04.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-11-29T06:19:06.000Z (over 1 year ago)
- Last Synced: 2025-10-13T15:58:56.424Z (8 months ago)
- Language: Dart
- Size: 250 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
## Flutter markdown ext demo
> test 文件夹内包含测试的方式，[widgets](lib%2Fwidgets)内包含基础的代码，代码是完全可用的，可以直接复制到项目中使用。
#### code examples
```dart
import 'package:flutter_test/flutter_test.dart';
import 'package:json5/json5.dart';
import 'package:markdown/markdown.dart' as md;
import 'dart:convert';
import 'package:lzstring/lzstring.dart';
class ThumbnailSyntax extends md.InlineSyntax {
ThumbnailSyntax()
: super(
r':::ThumbnailStart\s+((?:(?!:::).)+?):::',
startCharacter: ':'.codeUnits.single,
);
@override
bool onMatch(md.InlineParser parser, Match match) {
try {
final compressed = match[1] ?? '';
print('Compressed: $compressed');
final decompressed = LZString.decompressFromBase64Sync(compressed);
if (decompressed == null) {
throw FormatException('Failed to decompress data');
}
final List parsed = json5Decode(decompressed);
print('Parsed: $parsed');
parser.addNode(md.Element.text('thumbnail', json.encode(parsed)));
} catch (e) {
print('Error parsing thumbnail data: $e');
parser.addNode(md.Element.text('thumbnail', 'ERROR: ${e.toString()}'));
}
return true;
}
}
// LinkStart
class SearchWebSyntax extends md.InlineSyntax {
SearchWebSyntax()
: super(
r':::LinkStart\s+((?:(?!:::).)+?):::',
startCharacter: ':'.codeUnits.single,
);
@override
bool onMatch(md.InlineParser parser, Match match) {
try {
final compressed = match[1] ?? '';
print('Compressed: $compressed');
final decompressed = LZString.decompressFromBase64Sync(compressed);
if (decompressed == null) {
throw FormatException('Failed to decompress data');
}
final List parsed = json5Decode(decompressed);
print('Parsed: $parsed');
// 创建带有 thumbnail 标签的 Element
parser.addNode(md.Element('searchResult', [
md.Text(json.encode(parsed))
]));
} catch (e) {
print('Error parsing searchResult data: $e');
parser.addNode(md.Element('searchResult', [])); }
return true;
}
}
void main() {
group('ThumbnailSyntax Tests', () {
late md.Document document;
late ThumbnailSyntax thumbnailSyntax;
late SearchWebSyntax webSearchSyntax;
setUp(() {
thumbnailSyntax = ThumbnailSyntax();
webSearchSyntax = SearchWebSyntax();
document = md.Document(
extensionSet: md.ExtensionSet(
[],
[thumbnailSyntax,webSearchSyntax],
),
);
});
test('should parse valid thumbnail data', () async {
// // 准备测试数据
// final testData = [
// {
// 'url': 'https://example.com/image.jpg',
// 'title': 'Test Image'
// }
// ];
//
// // 压缩数据
// final compressed = LZString.compressToBase64Sync(json5Encode(testData));
// print('Compressed data: $compressed');
final markdown = ':::ThumbnailStart xxxxxxxxxxxxxxxx :::';
// 解析markdown
final nodes = document.parse(markdown);
final markdown_web = ':::LinkStart xxxxxxxxxxxxxxxxx :::';
// 解析markdown
final nodes_web = document.parse(markdown_web);
// 验证结果
expect(nodes, isNotEmpty);
expect(nodes_web, isNotEmpty);
});
});
}
```
### package
* [pubspec.yaml](pubspec.yaml) 文件内有一些没用的可以去掉，我为什么没去掉`我懒` ：）
```yaml
markdown: ^7.1.1
json5: ^0.8.2
flutter_markdown: ^0.7.4+3
image_picker: ^1.1.2
url_launcher: ^6.0.0
json_annotation: ^4.0.0
permission_handler: ^11.0.1
file_picker: ^6.1.1
path_provider: ^2.1.1
lzstring: ^2.0.0
```
### project init
```bash
flutter pub get
```