onTapCancel property Null safety

GestureTapCancelCallback? onTapCancel
final

Called if the user cancels a tap was started on cell.

If non-null, canceling the tap gesture will invoke this callback. If null (including onTap, onDoubleTap and onLongPress), tapping the cell will attempt to select the row (if DataRow.onSelectChanged is provided).

Implementation

final GestureTapCancelCallback? onTapCancel;