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class _ExhibitionBottomSheetState extends State<ExhibitionBottomSheet>
with SingleTickerProviderStateMixin {
double get itemBorderRadius => lerp(8, 24);
double get iconLeftBorderRadius => itemBorderRadius; //<-- Left border radius stays the same
double get iconRightBorderRadius => lerp(8, 0); //<-- Right border radius lerps to 0 instead.
Widget build(BuildContext context) {
return ...
child: Stack(
children: <Widget>[
fontSize: headerFontSize,
topMargin: headerTopMargin,
for (Event event in events) _buildFullItem(event), //<-- Add FullItems
for (Event event in events) _buildIcon(event),
Widget _buildIcon(Event event) {
child: ClipRRect(
borderRadius: BorderRadius.horizontal(
left: Radius.circular(iconLeftBorderRadius), //<-- update border radius
right: Radius.circular(iconRightBorderRadius), //<-- update border radius
Widget _buildFullItem(Event event) {
int index = events.indexOf(event);
return ExpandedEventItem(
topMargin: iconTopMargin(index), //<--provide margins and height same as for icon
leftMargin: iconLeftMargin(index),
height: iconSize,
isVisible: _controller.status == AnimationStatus.completed, //<--set visibility
borderRadius: itemBorderRadius, //<-- pass border radius
title: event.title, //<-- data to be displayed
date:, //<-- data to be displayed
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