This is working now

lib/component/lenra_dropdown_button.dart

@@ -88,27 +88,25 @@ class _LenraDropdownButtonState extends State<LenraDropdownButton> {
  final LayerLink _layerLink = LayerLink();
  final OverlayPortalController _overlayPortalController = OverlayPortalController();
  final GlobalKey _buttonKey = GlobalKey();
- final GlobalKey _overlayKey = GlobalKey();
  bool showOverlay = false;
 
  @override
  Widget build(BuildContext context) {
- return CompositedTransformTarget(
- link: _layerLink,
- child: OverlayPortal(
- controller: _overlayPortalController,
- overlayChildBuilder: (context) {
- return GestureDetector(
- behavior: HitTestBehavior.translucent,
- onTap: () => _overlayPortalController.toggle(),
- child: _Dropdown(
- key: _overlayKey,
- child: widget.child,
- layerLink: _layerLink,
- buttonKey: _buttonKey,
- ),
- );
- },
+ return OverlayPortal(
+ controller: _overlayPortalController,
+ overlayChildBuilder: (context) {
+ return GestureDetector(
+ behavior: HitTestBehavior.translucent,
+ onTap: () => _overlayPortalController.toggle(),
+ child: _Dropdown(
+ child: widget.child,
+ layerLink: _layerLink,
+ buttonKey: _buttonKey,
+ ),
+ );
+ },
+ child: CompositedTransformTarget(
+ link: _layerLink,
  child: LenraButton(
  key: _buttonKey,
  text: widget.text,
@@ -143,6 +141,7 @@ class _Dropdown extends StatefulWidget {
 
 class _DropdownState extends State<_Dropdown> with TickerProviderStateMixin {
  // TickerProviderStateMixin is used to correctly execute the fade animation of the menu
+ GlobalKey overlayKey = GlobalKey();
  Offset? overlayOffset;
  bool verticalScroll = false;
  bool horizontalScroll = false;
@@ -161,9 +160,7 @@ class _DropdownState extends State<_Dropdown> with TickerProviderStateMixin {
 
  WidgetsBinding.instance.addPostFrameCallback((_) {
  if (overlayOffset == null) {
- // How to get the overlay context ????????
- var overlay = context.findRenderObject();
-
+ var overlay = overlayKey.currentContext?.findRenderObject();
 
  if (overlay != null) {
  _updateOverlayOffset(overlay);
@@ -240,14 +237,14 @@ class _DropdownState extends State<_Dropdown> with TickerProviderStateMixin {
  Widget _forceTakeWidth(Widget child) {
  return SizedBox(
  width: double.infinity,
- child: child,
+ child: Container(key: overlayKey, child: child),
  );
  }
 
  Widget _addMinWidth(Widget child) {
  return ConstrainedBox(
  constraints: BoxConstraints(minWidth: buttonSize.width),
- child: child,
+ child: Container(key: overlayKey, child: child),
  );
  }