item_selector

Package Overview

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A flexible, generic item selector for Flutter that enables selection of items within any parent widget supporting indexed children, such as ListView, GridView, Row, or Column. It provides a consistent interface for managing selected items across different layout types without requiring custom logic for each. Ideal for building interactive lists and grids with selectable elements.

Use cases

Selecting items in a dynamic list
Building interactive grid layouts
Managing multiple selections in a scrollable container
Creating customizable selection interfaces
Integrating with forms or filters

Key features

Works with any indexed parent widget
Supports single and multiple selection
Generic type safety
Simple API for selection state management
Lightweight and unobtrusive

Suitable for

Developers building interactive lists
UI components requiring item selection
Apps with dynamic or nested layouts
Customizable form controls
Cross-platform apps needing consistent selection behavior

Considerations

Requires manual handling of selection state if not using built-in callbacks
May need additional styling for visual feedback
Not optimized for very large datasets without pagination
Limited to indexed child structures
No built-in animations for selection changes

Original README

Original README snapshot from the linked source repository. Visit the repository for the latest content.

Item Selector for Flutter

build

A generic Flutter item selector that works with ListView, GridView, Row, Column, or basically any parent widget that can have indexed child widgets. It supports single-selection by tap, and multi-selection by long-press and drag with auto-scrolling.

Preview

ListView	GridView

Column	Custom

Usage

To use this package, add item_selector as a dependency in your pubspec.yaml file.

ItemSelectionController(
  child: ListView(
    children: List.generate(10, (int index) {
      return ItemSelectionBuilder(
        index: index,
        builder: (BuildContext context, int index, bool selected) {
          return Text('$index: $selected');
        },
      );
    }),
  ),
)

Thanks

Item Selector is based on Multi Select GridView in Flutter - by Simon Lightfoot.

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