Index: packages/charted/lib/charts/src/chart_state_impl.dart |
diff --git a/packages/charted/lib/charts/src/chart_state_impl.dart b/packages/charted/lib/charts/src/chart_state_impl.dart |
index e5bccd8c050fb00ad4dbe7bda5723e3c32d9e1f6..6b86628d47fc5e336791643f050248440e4154b0 100644 |
--- a/packages/charted/lib/charts/src/chart_state_impl.dart |
+++ b/packages/charted/lib/charts/src/chart_state_impl.dart |
@@ -14,7 +14,7 @@ part of charted.charts; |
/// - In [CartesianArea] it is always a column. |
/// - In [LayoutArea] renders choose either columns or rows. |
/// |
-class DefaultChartStateImpl extends ChangeNotifier implements ChartState { |
+class DefaultChartStateImpl extends Observable implements ChartState { |
final bool isMultiSelect; |
final bool isMultiHighlight; |
final bool isSelectOrHighlight; |