item_selector library

A generic item selector that works in conjunction with ListView, GridView, Row, Column, or basically any parent widget that can have indexed child widgets.

Example

Widget build(BuildContext context) {
  return ItemSelectionController(
    child: ListView.builder(
      itemCount: 100,
      itemBuilder: (BuildContext context, int index) {
        return ItemSelectionBuilder(
          index: index,
          builder: (BuildContext context, int index, bool selected) {
            return Text('$index: $selected');
          },
        );
      },
    ),
  );
}

Classes

ItemSelection

Manages a selection of items.

ItemSelectionBuilder

Builds itself based on selection state changes.

ItemSelectionController

Controls a selection within indexed child widgets.

Enums

ItemSelectionMode

Specifies how an item selection controller responds to user interaction.

Typedefs

ItemSelectionActionCallback = bool Function(int start, int end)

Signature for a callback function that is called by ItemSelectionController when items are interactively selected by the user.

ItemSelectionChangeCallback = void Function(int index, bool selected)

Signature for a callback function that is called by ItemSelection when an item selection state changes to selected at the specified index.

ItemSelectionWidgetBuilder = Widget Function(BuildContext context, int index, bool selected)

Signature for a builder function that is called by ItemSelectionBuilder to create a widget for a given index and selected state.