我正在尝试使用 CustomScrollView 和 TabBar，但我不确定为什么我的实现不起作用。
我将 TabBar 包装在 SliverToBoxAdapter 中，但仍然没有成功。 以前我尝试过 GridView 但这会产生不需要的行为。
Widget build(BuildContext context) {
return Scaffold(
body: CustomScrollView(
slivers: <Widget>[
SliverToBoxAdapter(
child: CarouselSlider(
items: imgList.map((i) {
return Builder(
builder: (BuildContext context) {
return Container(
child: ClipRRect(
borderRadius: BorderRadius.all(Radius.circular(30.0)),
child: Image.network(
i,
fit: BoxFit.cover,
width: 1000.0,
),
),
);
},
);
}).toList(),
viewportFraction: 1.0,
height: 300.0,
),
),
SliverToBoxAdapter(
child: Container(
margin: EdgeInsets.all(10.0),
child: Padding(
padding: EdgeInsets.only(top: 10.0),
child: Container(
margin: EdgeInsets.only(left: 15.0, bottom: 15.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Container(
child: CircleAvatar(
backgroundImage: AssetImage(
'assets/images/cut1.png'), // put image here
radius: 50,
),
),
Expanded(
child: Column(
children: <Widget>[
Text('Frank Palma',
style: TextStyle(
fontSize: 25,
fontWeight: FontWeight.bold,
)),
IconTheme(
data: IconThemeData(
color: Colors.amber,
size: 25,
),
child: StarDisplay(value: 4),
),
Text(
'546 Cuts',
),
],
))
],
),
),
),
),
),
SliverToBoxAdapter(
child: TabBar(
controller: _tabcontroller,
unselectedLabelColor: Colors.blue,
indicator: BubbleTabIndicator(
indicatorHeight: 25.0,
indicatorColor: Colors.blue,
tabBarIndicatorSize: TabBarIndicatorSize.tab),
tabs: <Widget>[
Tab(icon: Icon(Icons.location_on)),
Tab(icon: Icon(Icons.calendar_view_day)),
Tab(icon: Icon(Icons.picture_in_picture))
],
),
),
SliverToBoxAdapter(
child: TabBarView(
controller: _tabcontroller,
children: [
Center(
child: Card(
elevation: 15.0,
margin: EdgeInsets.all(10.0),
child: Container(
width: MediaQuery.of(context).size.width,
height: 200.0,
child: GoogleMap(
onMapCreated: _onMapCreated,
initialCameraPosition: CameraPosition(
target: _center,
zoom: 11.0,
)),
),
),
),
Calendar(
isExpandable: true,
onSelectedRangeChange: (range) =>
print("Range is ${range.item1}, ${range.item2}"),
onDateSelected: (date) => print(date)),
SliverGrid(
delegate: SliverChildBuilderDelegate((context, index) {
return Container(
child: FadeInImage.memoryNetwork(
placeholder: kTransparentImage,
image: 'https://picsum.photos/${300}/${300}/',
),
);
}, childCount: 10),
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 3),
),
],
),
)
],
));
}
这些是我的错误:
flutter: Another exception was thrown: Horizontal viewport was given unbounded height. flutter: Another exception was thrown: RenderBox was not laid out: RenderViewport#fee96 NEEDS-LAYOUT NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: RenderViewport#fee96 NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: RenderIgnorePointer#ab99e relayoutBoundary=up7 NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: RenderSemanticsAnnotations#4a391 relayoutBoundary=up6 NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: RenderPointerListener#c322e relayoutBoundary=up5 NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: RenderSemanticsGestureHandler#4f759 relayoutBoundary=up4 NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: RenderPointerListener#fa8f5 relayoutBoundary=up3 NEEDS-PAINT flutter: Another exception was thrown: RenderBox was not laid out: _RenderScrollSemantics#c84ee relayoutBoundary=up2 NEEDS-PAINT flutter: Another exception was thrown: NoSuchMethodError: The method 'debugAssertIsValid' was called on null. ⣽flutter: Another exception was thrown: NoSuchMethodError: The getter 'visible' was called on null.
最佳答案
当嵌套两个可滚动小部件时，我需要限制内部小部件的可滚动性。当我遇到这个问题时，解决方案是在内部小部件中添加代码:
ShrinkWrap: true, // Solve the problem of infinite height
Physics: NeverScrollable ScrollPhysics (), // Disable Sliding Events
希望能帮到你
关于android - 如何将 SliverGrid 集成到 TabBarView 中？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56783576/