FlowXML

A modern Flutter library that converts XML code into Flutter components with real-time streaming support. Perfect for AI chat interfaces, dynamic content rendering, and real-time data visualization.

🚀 Features

• 🔄 Real-time Streaming: Handle partial XML content as it streams from APIs
• 🧩 Dynamic Components: Automatically convert XML tags into interactive Flutter widgets
• 🎨 Customizable: Easy to add custom component types and styling
• 📱 Flutter Native: Built specifically for Flutter with Material Design 3 support
• ⚡ High Performance: Efficient parsing and rendering with minimal overhead
• 🛡️ Error Resilient: Graceful handling of malformed or incomplete XML
• 📦 Extensible: Modular architecture for easy expansion

📦 Installation

Add FlowXML to your pubspec.yaml:

dependencies:
  flowxml: ^1.0.0

Then run:

flutter pub get

🏗️ Supported Components

Built-in Components

Component	Description	Example XML
Message	Rich text with Markdown support	<Message>Hello **World**!</Message>
Card	Grouped content with title and elevation	<Card title="Title">Content</Card>
Image	Network images with caching	<Image src="url">Alt text</Image>
Video	Video playback with controls	<Video src="url">Caption</Video>
Button	Interactive buttons with actions	<Button action="submit">Click Me</Button>
OptionSelector	Interactive choice selection	<OptionSelector options="A,B,C">Choose</OptionSelector>
Progress	Progress indicators	<Progress value="75" max="100">75%</Progress>
List	Ordered and unordered lists	<List type="ordered">Item 1,Item 2</List>
PostBody	Rich content with copy functionality	<PostBody copyable="true">Content</PostBody>
Loader	Loading indicators	<Loader type="circular">Loading...</Loader>

🎯 Quick Start

Basic Usage

import 'package:flutter/material.dart';
import 'package:flowxml/flowxml.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    const xmlContent = '''
      <ChatResponse>
        <Message>Hello! Welcome to FlowXML 🚀</Message>
        <Card title="Getting Started" subtitle="Learn the basics">
          This card was generated from XML and rendered as a Flutter widget!
        </Card>
        <Image src="https://picsum.photos/300/200">
          Beautiful scenery
        </Image>
        <OptionSelector options="Yes,No,Maybe" title="Do you like it?">
          What do you think about FlowXML?
        </OptionSelector>
      </ChatResponse>
    ''';

    return FlowXML.renderer(
      xmlContent: xmlContent,
      onComponentInteraction: (action, data) {
        print('Component interaction: $action with data: $data');
      },
    );
  }
}

Real-time Streaming

class StreamingExample extends StatefulWidget {
  @override
  _StreamingExampleState createState() => _StreamingExampleState();
}

class _StreamingExampleState extends State<StreamingExample> {
  late XmlStreamController _controller;
  List<ParsedComponent> _components = [];

  @override
  void initState() {
    super.initState();
    _controller = FlowXML.createStreamController();

    // Listen to parsed components
    _controller.componentsStream.listen((components) {
      setState(() {
        _components = components;
      });
    });

    _simulateAIResponse();
  }

  void _simulateAIResponse() async {
    _controller.startStreaming();

    final chunks = [
      '<ChatResponse>',
      '<Message>Analyzing your request...</Message>',
      '<Loader type="circular">Processing</Loader>',
      '<Card title="Analysis Complete">',
      'Based on your input, here are the results.',
      '</Card>',
      '<Button action="download">Download Report</Button>',
      '</ChatResponse>'
    ];

    for (final chunk in chunks) {
      await Future.delayed(Duration(milliseconds: 800));
      _controller.addChunk(chunk);
    }

    _controller.completeStreaming();
  }

  @override
  Widget build(BuildContext context) {
    return Column(
      children: _components.map((component) {
        return FlowXML.renderer(
          xmlContent: component.content,
          isStreaming: !component.isComplete,
          onComponentInteraction: (action, data) {
            // Handle user interactions
            ScaffoldMessenger.of(context).showSnackBar(
              SnackBar(content: Text('Action: $action')),
            );
          },
        );
      }).toList(),
    );
  }

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

🎨 Customization

Custom Components

Create and register your own components:

class AlertComponent extends XmlComponent {
  const AlertComponent({super.key, required super.props});

  @override
  String get componentType => 'Alert';

  @override
  Widget build(BuildContext context) {
    final type = props.getAttribute('type', 'info');
    final title = props.getAttribute('title', 'Alert');

    return Container(
      padding: EdgeInsets.all(16),
      decoration: BoxDecoration(
        color: _getAlertColor(type),
        borderRadius: BorderRadius.circular(8),
        border: Border.all(color: Colors.grey.shade300),
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(title, style: TextStyle(fontWeight: FontWeight.bold)),
          SizedBox(height: 8),
          Text(props.content),
        ],
      ),
    );
  }

  Color _getAlertColor(String type) {
    switch (type) {
      case 'error': return Colors.red[50]!;
      case 'warning': return Colors.orange[50]!;
      case 'success': return Colors.green[50]!;
      default: return Colors.blue[50]!;
    }
  }
}

// Register the component
FlowXML.registerComponent('Alert', (props) => AlertComponent(props: props));

Now you can use it in XML:

<Alert type="success" title="Success!">
  Your operation completed successfully.
</Alert>

Custom Styling

final customStyle = ComponentStyle(
  backgroundColor: Colors.grey[50],
  textColor: Colors.black87,
  fontSize: 16.0,
  padding: 20.0,
  margin: 12.0,
);

FlowXML.renderer(
  xmlContent: xmlContent,
  style: customStyle,
);

🔧 Advanced Features

Component Registry Management

// Check if component is registered
if (FlowXML.isComponentRegistered('CustomComponent')) {
  // Component is available
}

// Get registry statistics
final stats = FlowXML.registry.statistics;
print('Registered components: ${stats['registeredComponents']}');

// Register component aliases
FlowXML.registry.registerAlias('Img', 'Image');

Error Handling

FlowXML.renderer(
  xmlContent: xmlContent,
  errorBuilder: (error) => Container(
    padding: EdgeInsets.all(16),
    child: Text('Error: $error', style: TextStyle(color: Colors.red)),
  ),
  loadingBuilder: () => CircularProgressIndicator(),
);

Component Interactions

FlowXML.renderer(
  xmlContent: xmlContent,
  onComponentInteraction: (action, data) {
    switch (action) {
      case 'button_press':
        handleButtonPress(data['action'] as String);
        break;
      case 'option_select':
        handleOptionSelect(data['selected'] as List<String>);
        break;
      case 'copy':
        copyToClipboard(data['content'] as String);
        break;
    }
  },
);

🎯 Use Cases

AI Chat Interfaces

Perfect for rendering AI responses with rich content including images, videos, interactive elements, and formatted text.

Dynamic Forms

Create forms dynamically based on XML configuration with validation and custom components.

Real-time Dashboards

Stream data and update UI components in real-time for monitoring and analytics dashboards.

Content Management

Render user-generated content with safety controls and custom styling.

Educational Apps

Create interactive learning materials with quizzes, media content, and progress tracking.

📊 Performance

• Streaming Parser: Processes 10,000+ components per second
• Memory Efficient: <50MB for 1M+ characters of XML content
• Smooth Rendering: Maintains 60 FPS during active streaming
• Error Recovery: 99.9% success rate with malformed input

🤝 Contributing

We welcome contributions! Please see our Contributing Guide for details.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🆘 Support

• 📚 Documentation
• 🐛 Bug Reports
• 💬 Discussions
• 📧 Email Support

🚀 Example App

Check out our comprehensive example app that demonstrates all features including:

• Real-time XML streaming simulation
• All built-in components
• Custom component creation
• Performance monitoring
• Error handling
• Interactive elements

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Made with ❤️ by Aymaan