live_cells_core 0.12.0

Provides the core of live cells: A replacement for ChangeNotifier and ValueNotifier that is easier to use and more flexible

0.12.0

New features:

• Record extension methods for creating lightweight computed (and mutable computed) cells:

  (a, b).apply((a,b) => a + b);
  (a, b).mutableApply((a,b) => a + b, (v) {...});
  

• changesOnly option in cell constructors. When this option is set to true, the cell only notifies its observers when its value has actually changed.

• Relaxed restriction that MutableCellView only accept a single argument

• Extensions which allow Iterable, List, Map and Set methods and properties to be used directly on cells:

  ValueCell<List<int>> listCell;
  ValueCell<int> index;
  ... 
  final elementI = listCell[index];
  final length = listCell.length;
  

Breaking changes:

• CellObserver.update now takes a second didChange parameter. This only affects code that uses the CellObserver interface directly.
• DependentCell, ComputeCell and MutableCellView now take an argument Set as opposed to an argument List. This only affects code which instantiates these classes directly.
• Remove CellListenableExtension. This will be moved to the live_cell_widgets package.

Other changes:

• Removed dependency on Flutter. This package can now be used in pure Dart applications.
• Deprecated ListComputeExtension, i.e. [a, b].computeCell(...). Use the record compute extensions instead.

0.11.0

• Core live cell definitions extracted from live_cells package to this package.