A Flutter package that provides custom scroll physics and widgets for handling variable-width pages with dynamic height adjustment. Perfect for creating flexible page views where each page can have different widths and heights.

• Variable Width Page ScrollPhysics: Custom scroll physics that snaps to pages with different widths
• Adaptive Height Page Slider: Automatically adjusts container height based on scroll position
• Sliver-based Slider: Efficient implementation using Flutter's sliver system for large datasets

1. FlexPageScrollPhysics: Custom ScrollPhysics that handles variable-width pages
2. FlexPageSlider: Widget that adjusts height dynamically based on scroll position
3. FlexSliverSlider: Sliver-based implementation for better performance with many items

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

dependencies:
  variable_width_scrollphysics: ^0.0.1

import 'package:variable_width_scrollphysics/variable_width_scrollphysics.dart';

FlexPageSlider(
  pageWidths: [300, 400, 350],  // Widths of each page
  pageHeights: [200, 300, 300], // Heights of each page
  child: Row(
    children: [
      // Your page content here
      Container(width: 300, color: Colors.red),
      Container(width: 400, color: Colors.green),
      Container(width: 350, color: Colors.blue),
    ],
  ),
)

SingleChildScrollView(
  scrollDirection: Axis.horizontal,
  physics: FlexPageScrollPhysics([300, 400, 400]),
  child: Row(
    children: [
      Container(width: 300, child: Page1()),
      Container(width: 400, child: Page2()),
      Container(width: 400, child: Page3()),
    ],
  ),
)

Check out the /example folder for complete examples:

• Demo1: Basic variable width pages with different heights
• Demo2: Image gallery with variable widths
• Demo3: Dynamic content with sliver implementation
• Demo4: Complex layout with nested scrolling

To run the example:

cd example
flutter run

This package is useful for:

• Image galleries with different image sizes
• Card-based layouts with variable content
• Any UI requiring variable-width pages with smooth scrolling

For bugs or feature requests, please file an issue on the GitHub repository.

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