Sure, Faysal! Here's your updated and polished README.md that reflects the latest changes to your package — notably:

• onRefresh and onLazyLoad are now VoidCallback (i.e., sync),
• Scroll trigger is controlled by lazyLoadTriggerRatio,
• Fixed descriptions to match current implementation,
• Clean formatting with emojis and clear sections.

---

# lazy_refreshing_listview

A smart and reusable Flutter widget that enables pull-to-refresh and infinite scroll (lazy loading) for any `ListView` with minimal setup.

---

## ✨ Features

- 🔄 Pull-to-refresh functionality
- ⬇️ Infinite scrolling (lazy loading)
- 🧱 Works with any `ListView` widget
- 🎯 Trigger lazy load based on scroll threshold
- ⚙️ Easy-to-use sync `VoidCallback`-based handlers
- 📱 Supports custom `ScrollController`
- 🎨 Customizable refresh header and loading footer

---

## 🚀 Quick Usage

```dart
import 'package:lazy_refreshing_listview/lazy_refreshing_listview.dart';

LazyRefreshingListView(
  onRefresh: () {
    // Sync logic to handle refresh
    _refreshData();
  },
  onLazyLoad: () {
    // Sync logic to handle load more
    _loadMoreData();
  },
  listView: ListView.builder(
    itemCount: items.length,
    itemBuilder: (context, index) {
      return ListTile(
        title: Text(items[index].title),
        subtitle: Text(items[index].description),
      );
    },
  ),
);

---

📚 API Reference

LazyRefreshingListView

Property	Type	Default	Description
listView	ListView	Required	The list to be displayed and managed
onRefresh	VoidCallback?	null	Called on pull-to-refresh
onLazyLoad	VoidCallback?	null	Called when nearing scroll end
disableRefresh	bool	false	Disable pull-to-refresh feature
disableLazyLoading	bool	false	Disable infinite scroll
lazyLoadTriggerRatio	double	0.3	Ratio of screen height before bottom to trigger lazy loading
scrollController	ScrollController?	null	Custom scroll controller
header	Widget?	null	Custom refresh header
footer	Widget?	null	Custom loading footer

---

🧩 Advanced Examples

🪄 Custom Refresh Header

LazyRefreshingListView(
  header: Container(
    height: 60,
    child: Center(
      child: Text(
        'Pull to refresh',
        style: TextStyle(color: Colors.blue),
      ),
    ),
  ),
  onRefresh: _onRefresh,
  onLazyLoad: _onLazyLoad,
  listView: yourListView,
)

🌀 Custom Loading Footer

LazyRefreshingListView(
  footer: Container(
    padding: EdgeInsets.all(16),
    child: Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        CircularProgressIndicator(),
        SizedBox(width: 16),
        Text('Loading more...'),
      ],
    ),
  ),
  onRefresh: _onRefresh,
  onLazyLoad: _onLazyLoad,
  listView: yourListView,
)

---

🧯 Disable Specific Features

// Only enable pull-to-refresh
LazyRefreshingListView(
  disableLazyLoading: true,
  onRefresh: _onRefresh,
  listView: yourListView,
);

// Only enable lazy loading
LazyRefreshingListView(
  disableRefresh: true,
  onLazyLoad: _onLazyLoad,
  listView: yourListView,
);

---

💡 Tips

• Scroll detection is handled internally; just provide onLazyLoad.
• Pull-to-refresh uses native-feeling indicators on both Android and iOS.
• Compatible with ListView.builder, ListView.separated, etc.
• You can control how early lazy loading starts with lazyLoadTriggerRatio (default: 0.3 of the screen height).
• The widget supports both internal and external ScrollController.

---

🛠 Contributing

Contributions are welcome! If you have ideas, bug fixes, or improvements, feel free to fork the repo and submit a PR.

👉 GitHub: https://github.com/faysalewucse/lazy_refreshing_listview

---

🐞 Issues & Feedback

Please report bugs or feature requests via the GitHub issues page:

https://github.com/faysalewucse/lazy_refreshing_listview/issues

---

📄 License

MIT © 2025 Faysal Ahmed