🎯 Anchored Sheets

A Flutter package for creating modal sheets that slide down from the top of the screen, similar to showModalBottomSheet but positioned at the top. Perfect for filter menus, notifications, dropdowns, and any content that should appear anchored to specific widgets or screen positions.

🎨 Demo

📦 Installation

Add this to your package's pubspec.yaml file:

dependencies:
  anchored_sheets: ^1.2.12

Then run:

flutter pub get

🚀 Quick Start

Add AnchoredObserver

add anchoredObserver on materialApp

   return MaterialApp(
      title: 'Anchored Sheets Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
        useMaterial3: true,
      ),
      navigatorObservers: [anchoredObserver],
      home: const AnchoredSheetsDemo(),
    );

Basic Usage

import 'package:anchored_sheets/anchored_sheets.dart';

// Basic anchored sheet
void showBasicSheet() async {
  final result = await anchoredSheet<String>(
    context: context,
    builder: (context) => Container(
      padding: EdgeInsets.all(20),
      child: Column(
        mainAxisSize: MainAxisSize.min, // ✅ Automatically sized!
        children: [
          Icon(Icons.info, size: 48),
          SizedBox(height: 16),
          Text('Hello from top sheet!'),
          ElevatedButton(
            onPressed: () => dismissAnchoredSheet(),
            child: Text('Close'),
          ),
        ],
      ),
    ),
  );
  
  if (result != null) {
    print('Result: $result');
  }
}

context.popAnchorShee<T>

Context-free dismissal function.

// Dismiss with result
context.popAnchorSheet('result_value');

// Dismiss without result
context.popAnchorSheet();

// From anywhere in your app
void someUtilityFunction() {
  // No BuildContext needed! 🎉
  context.popAnchorSheet('closed_from_utility');
}

🙏 Acknowledgments

• Inspired by Material Design guidelines
• Built on Flutter's robust animation and layout systems
• Thanks to the Flutter community for feedback and suggestions
• Special thanks to contributors helping improve performance, lifecycle management, and navigation patterns

📧 Support

• 📖 Read the docs
• 🐛 Report issues

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Made with ❤️ for the Flutter community