fix width when MenuButton on Expanded widget

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.2.1 - 2020-06-16
+
+Fix width when MenuButton is on Expanded widget
+
 ## 1.2.0+1 - 2020-06-16
 
 MenuButton now display the decoration color everywhere

README.md

@@ -6,7 +6,7 @@ A popup menu button widget with handsome design and easy to use.
 
 ## Installations
 
-Add `menu_button: ^1.2.0+1` in your `pubspec.yaml` dependencies. And import it:
+Add `menu_button: ^1.2.1` in your `pubspec.yaml` dependencies. And import it:
 
 ```dart
 import 'package:menu_button/menu_button.dart';

example/pubspec.lock

@@ -94,7 +94,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.2.0+1"
+    version: "1.2.1"
   meta:
     dependency: transitive
     description:

lib/menu_button.dart

@@ -56,6 +56,7 @@ class _MenuButtonState<T> extends State<MenuButton<T>> {
   Size labelTextSize;
   bool toggledMenu = false;
   Widget button;
+  double buttonWidth;
 
   void _updateLabelTextSize() {
     if (widget.label != null) {
@@ -192,6 +193,7 @@ class _MenuButtonState<T> extends State<MenuButton<T>> {
         .toList();
     final RenderBox button = context.findRenderObject();
     final RenderBox overlay = Overlay.of(context).context.findRenderObject();
+    buttonWidth = button.size.width;
     final RelativeRect position = RelativeRect.fromRect(
       Rect.fromPoints(
         button.localToGlobal(
@@ -261,6 +263,7 @@ class _MenuButtonState<T> extends State<MenuButton<T>> {
           popupHeight: popupHeight,
           crossTheEdge: crossTheEdge,
           edgeMargin: edgeMargin,
+          buttonWidth: buttonWidth
         ),
       );
 }
@@ -276,6 +279,7 @@ class _MenuRoute<T> extends PopupRoute<T> {
   final double popupHeight;
   final bool crossTheEdge;
   final double edgeMargin;
+  final double buttonWidth;
 
   _MenuRoute({
     final this.position,
@@ -288,6 +292,7 @@ class _MenuRoute<T> extends PopupRoute<T> {
     final this.popupHeight,
     final this.crossTheEdge,
     final this.edgeMargin,
+    final this.buttonWidth,
   });
 
   @override
@@ -333,6 +338,7 @@ class _MenuRoute<T> extends PopupRoute<T> {
                 popupHeight: popupHeight,
                 crossTheEdge: crossTheEdge,
                 edgeMargin: edgeMargin,
+                buttonWidth: buttonWidth,
               ),
             );
           },
@@ -371,13 +377,15 @@ class _Menu<T> extends StatefulWidget {
     this.popupHeight,
     this.edgeMargin,
     this.crossTheEdge,
+    @required this.buttonWidth,
   }) : super(key: key);
 
   final _MenuRoute<T> route;
   final ScrollPhysics scrollPhysics;
   final double popupHeight;
   final bool crossTheEdge;
   final double edgeMargin;
+  final double buttonWidth;
 
   @override
   __MenuState<T> createState() => __MenuState<T>();
@@ -431,7 +439,7 @@ class __MenuState<T> extends State<_Menu<T>> {
           opacity: opacity.evaluate(widget.route.animation),
           child: Container(
             key: key,
-            width: width,
+            width: width ?? widget.buttonWidth,
             height: widget.popupHeight,
             decoration: BoxDecoration(
               color: widget.route.decoration.color,
@@ -454,7 +462,7 @@ class __MenuState<T> extends State<_Menu<T>> {
               child: IntrinsicWidth(
                 child: SingleChildScrollView(
                   physics:
-                      widget.scrollPhysics ?? NeverScrollableScrollPhysics(),
+                  widget.scrollPhysics ?? NeverScrollableScrollPhysics(),
                   child: ListBody(children: [
                     _MenuButtonToggledChild(child: widget.route.toggledChild),
                     Align(

pubspec.yaml

@@ -1,7 +1,7 @@
 name: menu_button
 description: A menu button widget to select an item in a dropdown list easily customizable
 homepage: https://github.com/huextrat/menu_button
-version: 1.2.0+1
+version: 1.2.1
 
 environment:
   sdk: ">=2.1.0 <3.0.0"