我有以下源代码:
@override
Widget build(BuildContext context) {
return Scaffold(
body: CustomScrollView(
controller: scrollController,
slivers: <Widget>[
SliverList(
delegate: SliverChildBuilderDelegate(
(context, cardIndex) {
return Container(
color: Colors.white,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(
'Main Course',
style: kRestaurantMenuTypeStyle,
),
ListView.builder(
itemCount: menuCards[cardIndex].menuItems.length,
shrinkWrap: true,
physics: NeverScrollableScrollPhysics(),
scrollDirection: Axis.vertical,
itemBuilder: (context, itemIndex) {
return RestaurantMenuItem(
menuItem: menuCards[cardIndex].menuItems[itemIndex],
);
},
),
],
),
);
},
childCount: menuCards.length,
),
),
],
),
);
}
不幸的是,ListView.builder()
会自动在顶部创建这个额外的空间。如下图所示。即“主菜”和“Pancit Malabon”文本之间的巨大白色空间。
我不明白为什么ListView
会这样做。我该如何删除这个空间?