Spannable Grid #

A Flutter SpannableGrid widget that allows it's cells to span columns and rows and supports moving cells inside the grid.

The widget is sized to fit its parent width

The number of columns and rows is fixed

Cells can span columns and rows

Supports editing mode, in which cells can be moved inside the grid to available places

Uses theme's accent color to highlight the editing cell

In the dependencies: section of your pubspec.yaml , add the following line:

dependencies: spannable_grid: ^0.1.0

Import the package

import 'package:spannable_grid/spannable_grid.dart';

Create grid items

The SpannableGrid widget requires the list of SpannableGridCellData objects that define cells appearance.

List<SpannableGridCellData> cells = List(); cells.add(SpannableGridCellData( column: 1, row: 1, columnSpan: 2, rowSpan: 2, id: "Test Cell 1", child: Container( color: Colors.lime, child: Center( child: Text("Tile 2x2", style: Theme.of(context).textTheme.title, ), ), ), )); cells.add(SpannableGridCellData( column: 4, row: 1, columnSpan: 1, rowSpan: 1, id: "Test Cell 2", child: Container( color: Colors.lime, child: Center( child: Text("Tile 1x1", style: Theme.of(context).textTheme.title, ), ), ), ));

Add SpannableGrid widget

SpannableGrid( columns: 4, rows: 4, cells: cells, spacing: 2.0, onCellChanged: (cell) { print('Cell ${cell.id} changed'); }, ),

Editing mode

User can enter editing mode by long press on the cell.

In the editing mode the editing cell is highlighted, other cells are faded and the grid structure becomes visible. User can move editing cell to another available place inside the grid.

Tap on editing cell will exit the editing mode. The updated cell is returned in onCellChanged callback.

Full example

You can find demo app in the example project.

Changelog

Please check the Changelog page for the latest version and changes.

License

Author: Evgeny Cherkasov.

This package is published under MIT License.

Contributions

Feel free to contribute to this project.

Flutter