Two-Dimensional Scrollable Widgets in Flutter

Flutter's two_dimensional_scrollables package empowers developers to create widgets that effortlessly scroll in both vertical and horizontal axes. This package enhances the framework's existing two-dimensional scrolling foundation, enabling a wide range of customizable scrolling experiences.

Key Features

• TableView: A scrollable widget that renders its children lazily in a two-dimensional viewport, allowing for efficient and dynamic content loading.
• Diagonal Scrolling: Supports smooth diagonal scrolling or axis locking for precise control over movement.
• Decorations: Customize individual rows and columns with backgrounds, borders, and other visual enhancements.
• Gesture Handling: Handle gestures and custom pointers for rows and columns, enabling interactive and responsive interfaces.
• Pinning: Pin rows and columns to remain visible even when the viewport is scrolled.

Getting Started

1. Add package dependency:

flutter pub add two_dimensional_scrollables

2. Import package:

import 'package:two_dimensional_scrollables/two_dimensional_scrollables.dart';

Usage

TableView

Create a TableView by constructing it with a builder that generates its children on demand:

TableView(
  builder: (context, rowIndex, columnIndex) {
    // Build and return a cell widget
  },
  columnCount: 400,
  rowCount: 400,
)

Example: Customizing Table Cells

The following code demonstrates how to customize individual table cells using TableSpanDecoration:

TableView(
  builder: (context, rowIndex, columnIndex) {
    return TableCell(
      decoration: TableSpanDecoration(
        backgroundColor: Colors.blue,
        border: Border.all(color: Colors.black),
      ),
    );
  },
  columnCount: 400,
  rowCount: 400,
)

Additional Information

• This package leverages Flutter's two-dimensional scrolling foundation, ensuring optimal performance and compatibility with other Flutter widgets.
• Consider contributing to the package by submitting pull requests to the Flutter Packages repository with the tag "p: two_dimensional_scrollables".

Enhance your Flutter applications with the versatility and power of two-dimensional scrolling using the two_dimensional_scrollables package.