many widget errors

[heshesh2010]

Hi,

when i use PagedListView in body of Scaffold widget it works fine , but when i used it as an element in cloumn or parnet listview i get many errors like :

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
BoxConstraints forces an infinite height.
The relevant error-causing widget was:
PagedListView<int, Food> file:///Users/hesham/StudioProjects/foodlobby_client/lib/src/pages/menu_list.dart:115:9
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
Null check operator used on a null value
The relevant error-causing widget was:
PagedListView<int, Food> file:///Users/hesham/StudioProjects/foodlobby_client/lib/src/pages/menu_list.dart:115:9
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
Null check operator used on a null value
The relevant error-causing widget was:
PagedListView<int, Food> file:///Users/hesham/StudioProjects/foodlobby_client/lib/src/pages/menu_list.dart:115:9
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
Null check operator used on a null value
The relevant error-causing widget was:
PagedListView<int, Food> file:///Users/hesham/StudioProjects/foodlobby_client/lib/src/pages/menu_list.dart:115:9
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by rendering library ═════════════════════════════════════════════════════
RenderBox was not laid out: RenderShrinkWrappingViewport#f8e22 relayoutBoundary=up18 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1785 pos 12: 'hasSize'
The relevant error-causing widget was:
PagedListView<int, Food> file:///Users/hesham/StudioProjects/foodlobby_client/lib/src/pages/menu_list.dart:115:9

=====

my code :

 @override
  Widget build(BuildContext context) {
return Scaffold(
  key: _con.scaffoldKey,
  drawer: DrawerWidget(),
  appBar: AppBar(
    backgroundColor: Colors.transparent,
    elevation: 0,
    centerTitle: true,
    title: Text(
      _con.foods.isNotEmpty && _con.foods[0].restaurantName != null
          ? _con.foods[0].restaurantName
          : '',
      overflow: TextOverflow.fade,
      softWrap: false,
      style: Theme.of(context)
          .textTheme
          .title
          .merge(TextStyle(letterSpacing: 0)),
    ),
    actions: <Widget>[
      ShoppingCartButtonWidget(
          iconColor: Theme.of(context).hintColor,
          labelColor: Theme.of(context).accentColor)
    ],
  ),
  floatingActionButtonLocation: FloatingActionButtonLocation.endFloat,
  body: ListView(
    shrinkWrap: true,
    padding: EdgeInsets.symmetric(vertical: 10),
      children: <Widget>[
        Padding(
          padding: const EdgeInsets.symmetric(horizontal: 20),
          child: SearchBarWidget(),
        ),
        ListTile(
          dense: true,
          contentPadding:
              EdgeInsets.symmetric(horizontal: 20, vertical: 10),
          leading: Icon(
            Icons.trending_up,
            color: Theme.of(context).hintColor,
          ),
          title: Text(
            S.of(context).trending_this_week,
            style: Theme.of(context).textTheme.display1,
          ),
          subtitle: Text(
            S.of(context).double_click_on_the_food_to_add_it_to_the,
            style: Theme.of(context)
                .textTheme
                .caption
                .merge(TextStyle(fontSize: 11)),
          ),
        ),
        FoodsCarouselWidget(
            heroTag: 'menu_trending_food', restaurantController: _con),
        ListTile(
          dense: true,
          contentPadding:
              EdgeInsets.symmetric(horizontal: 20, vertical: 10),
          leading: Icon(
            Icons.list,
            color: Theme.of(context).hintColor,
          ),
          title: Text(
            S.of(context).all_menu,
            style: Theme.of(context).textTheme.display1,
          ),
          subtitle: Text(
            S.of(context).longpress_on_the_food_to_add_suplements,
            style: Theme.of(context)
                .textTheme
                .caption
                .merge(TextStyle(fontSize: 11)),
          ),
        ),
    
    PagedListView<int, Food>.separated(
          scrollDirection: Axis.vertical,
      primary: false,
      shrinkWrap: true,
      pagingController: _con.pagingFoodsController,
          builderDelegate: PagedChildBuilderDelegate<Food>(
            itemBuilder: (context, item, index) {
              return FoodItemWidget(
                  heroTag: "menu_list",
                  food: item);
            },
            noMoreItemsIndicatorBuilder: (_) =>
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: ClipRRect(
                    borderRadius: BorderRadius.circular(80),
                    child: RaisedButton(
                      disabledColor: Colors.white,
                      onPressed: null,
                      child: Text("لا يوجد وجبات اخرى"),
                    ),
                  ),
                ),
          ),

          separatorBuilder: (context, index) =>   SizedBox(height: 10),
        )
      ],
    ));

}

[EdsonBueno]

Hi, @heshesh2010 . Today's release (2.2.1) fixes this. Just upgrade the package version and it should work right out of the box.
Although I should mention that using shrinkWrap isn't the ideal way of achieving that sort of layout with widgets preceding your list (even if it was a regular ListView). For a better approach to this, please refer to this section of the cookbook.

Thank you for using the package and opening the issue!

[heshesh2010]

hi , the problem is solved , but in same widiget i get error :
There are multiple heroes that share the same tag within a subtree.

i make sure there is no hero , when i remove PagedListView the layout works fine when hit any button