rail_navigator

rail_navigator is a customizable Flutter package for implementing a side rail navigation menu. It offers flexible configuration options for colors, sizes, and behaviors, making it suitable for both beginner and intermediate developers looking to enhance their Flutter applications with a dynamic and visually appealing navigation rail.

Features

• Expandable and Collapsible Rail: Customize the width and appearance of the rail in both expanded and collapsed states.
• Customizable Colors: Set colors for active and inactive icons, text, and rail backgrounds.
• Adjustable Padding: Add padding to the top and bottom of the rail items.
• Toggle Button Configuration: Customize the toggle button's icon, color, and position.
• Item Tap Handling: Attach onTap handlers to rail items for dynamic interactions.

Installation

Add rail_navigator to your pubspec.yaml file:

dependencies:
  flutter:
    sdk: flutter
  rail_navigator: ^0.0.1 # Replace with the latest version

Then, run flutter pub get to install the package.

Usage

Basic Example

Here's a simple example of how to use the RailNavigation widget in your application:

import 'package:flutter/material.dart';
import 'package:rail_navigator/rail_navigation.dart';

void main() {
  runApp(BasicExample());
}

class BasicExample extends StatefulWidget {
  @override
  _BasicExampleState createState() => _BasicExampleState();
}

class _BasicExampleState extends State<BasicExample> {
  bool isExpanded = false;

  void toggleRail() {
    setState(() {
      isExpanded = !isExpanded;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Row(
          children: [
            RailNavigation(
              isExpanded: isExpanded,
              onToggle: toggleRail,
              railItems: [
                RailItem(icon: Icons.dashboard, label: 'Dashboard'),
                RailItem(icon: Icons.settings, label: 'Settings'),
                RailItem(icon: Icons.info, label: 'About'),
              ],
            ),
            Expanded(
              child: Center(child: Text('Main Content Area')),
            ),
          ],
        ),
      ),
    );
  }
}

Advanced Example

This example demonstrates how to customize various properties of the RailNavigation widget:

import 'package:flutter/material.dart';
import 'package:rail_navigator/rail_navigation.dart';

void main() {
  runApp(AdvancedExample());
}

class AdvancedExample extends StatefulWidget {
  @override
  _AdvancedExampleState createState() => _AdvancedExampleState();
}

class _AdvancedExampleState extends State<AdvancedExample> {
  bool isExpanded = false;

  void toggleRail() {
    setState(() {
      isExpanded = !isExpanded;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Row(
          children: [
            RailNavigation(
              isExpanded: isExpanded,
              onToggle: toggleRail,
              expandedWidth: 250,
              collapsedWidth: 80,
              expandedRailColor: Colors.white,
              collapsedRailColor: Colors.grey[800],
              activeIconColor: Colors.blue,
              inactiveIconColor: Colors.grey,
              activeTextColor: Colors.black,
              inactiveTextColor: Colors.grey,
              activeItemColor: Colors.blueAccent,
              inactiveItemColor: Colors.grey,
              toggleButtonIcon: Icons.menu,
              toggleButtonPosition: Alignment.centerRight,
              toggleButtonColor: Colors.blue,
              topPadding: 20.0,
              bottomPadding: 10.0,
              railItems: [
                RailItem(
                  icon: Icons.dashboard,
                  label: 'Dashboard',
                  onTap: () {
                    print('Dashboard clicked');
                  },
                ),
                RailItem(
                  icon: Icons.settings,
                  label: 'Settings',
                  onTap: () {
                    print('Settings clicked');
                  },
                ),
                RailItem(
                  icon: Icons.info,
                  label: 'About',
                  onTap: () {
                    print('Settings clicked');
                  },
                ),
              ],
            ),
            Expanded(
              child: Center(child: Text('Main Content Area')),
            ),
          ],
        ),
      ),
    );
  }
}

Configuration Options

RailNavigation Properties

• isExpanded: bool - Determines if the rail is in expanded or collapsed state.
• onToggle: Function - Callback function triggered when the toggle button is pressed.
• collapsedRailColor: Color? - Background color of the rail when collapsed.
• expandedRailColor: Color? - Background color of the rail when expanded.
• expandedWidth: double? - Width of the rail when expanded.
• collapsedWidth: double? - Width of the rail when collapsed.
• activeIconColor: Color? - Color of the icon when the item is active.
• inactiveIconColor: Color? - Color of the icon when the item is inactive.
• activeTextColor: Color? - Color of the text when the item is active.
• inactiveTextColor: Color? - Color of the text when the item is inactive.
• activeItemColor: Color? - Color of the rail item when active.
• inactiveItemColor: Color? - Color of the rail item when inactive.
• toggleButtonIcon: IconData? - Icon used for the toggle button.
• toggleButtonPosition: Alignment? - Position of the toggle button.
• toggleButtonColor: Color? - Background color of the toggle button.
• topPadding: double? - Padding at the top of the rail items list.
• bottomPadding: double? - Padding at the bottom of the rail items list.
• railItems: List<RailItem> - List of items to display in the rail.

RailItem Properties

• icon: IconData - Icon displayed for the rail item.
• label: String - Text label for the rail item.
• onTap: VoidCallback? - Function to execute when the rail item is tapped.

Contributing

Contributions are welcome! If you find any issues or have suggestions for improvements, please open an issue or submit a pull request.