diff --git a/packages/visibility_detector/example/lib/main.dart b/packages/visibility_detector/example/lib/main.dart index 05085970..7b09cd8c 100644 --- a/packages/visibility_detector/example/lib/main.dart +++ b/packages/visibility_detector/example/lib/main.dart @@ -517,7 +517,7 @@ class VisibilityReportGridState extends State { } /// A class for storing a [row, column] pair. -class RowColumn extends Comparable { +class RowColumn implements Comparable { RowColumn(this.row, this.column); final int row;