snap_panel 0.0.3

A highly customizable sliding panel component for Flutter, supporting multi-snap points, drag gestures, spring animations, and scroll linkage.

example/lib/main.dart

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

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title:'AI Panel 示例',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        colorSchemeSeed: Colors.blue,
        useMaterial3: true,
      ),
      home: const HomePage(),
    );
  }
}

class HomePage extends StatelessWidget {
  const HomePage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('AI Panel 示例'),
        centerTitle: true,
      ),
      body: Center(
        child: Padding(
          padding: const EdgeInsets.all(32),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              _NavCard(
                title: 'SnapPanel',
                subtitle: '高度可定制的滑动面板组件\n支持停靠点、背景遮罩、视差效果等',
                icon: Icons.view_agenda,
                color: Colors.blue,
                onTap: () => Navigator.push(
                  context,
                  MaterialPageRoute(builder: (_) => const SnapPanelExample()),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

class _NavCard extends StatelessWidget {
  final String title;
  final String subtitle;
  final IconData icon;
  final Color color;
  final VoidCallback onTap;

  const _NavCard({
    required this.title,
    required this.subtitle,
    required this.icon,
    required this.color,
    required this.onTap,
  });

  @override
  Widget build(BuildContext context) {
    return Card(
      elevation: 2,
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
      child: InkWell(
        onTap: onTap,
        borderRadius: BorderRadius.circular(16),
        child: Padding(
          padding: const EdgeInsets.all(24),
          child: Row(
            children: [
              Container(
                width: 56,
                height: 56,
                decoration: BoxDecoration(
                  color: color.withValues(alpha: 0.1),
                  borderRadius: BorderRadius.circular(16),
                ),
                child: Icon(icon, color: color, size: 28),
              ),
              const SizedBox(width: 20),
              Expanded(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      title,
                      style: const TextStyle(
                        fontSize: 18,
                        fontWeight: FontWeight.bold,
                      ),
                    ),
                    const SizedBox(height: 4),
                    Text(
                      subtitle,
                      style: TextStyle(
                        fontSize: 13,
                        color: Colors.grey[600],
                        height: 1.4,
                      ),
                    ),
                  ],
                ),
              ),
              Icon(Icons.chevron_right, color: Colors.grey[400]),
            ],
          ),
        ),
      ),
    );
  }
}