这是我的代码实现：
return Scaffold(
appBar: CustomAppBar(
scaffoldKey: widget.scaffoldKey,
// icon: AppIcon.settings,
// onActionPressed: onSettingIconPressed,
onSearchChanged: (text) {
setState(() {
if (text.length > 0) {
searching = true;
} else {
searching = false;
}
});
state.filterByUsername(text);
},
),
backgroundColor: Colors.white,
body:
// Column(children: [
RefreshIndicator(
backgroundColor: Colors.white,
onRefresh: () async {
HapticFeedback.selectionClick();
setState(() {
list3 = state2.getTweetList(authstate.userModel);
list3.shuffle();
onlyImages.shuffle();
});
state.getDataFromDatabase();
return Future.value(true);
},
// mesto povise greed, i ispod search boxa
child: Column(
children: <Widget>[
CarouselSlider.builder(
itemCount: images.length,
options: CarouselOptions(
// autoPlayInterval: Duration(milliseconds: 30),
autoPlay: true,
aspectRatio: 2.0,
enlargeCenterPage: true,
),
itemBuilder: (context, index) {
return Container(
child: Center(
child: (imageUrl != null)
? Image.network(imageUrl)
: Placeholder(
fallbackHeight: 200,
fallbackWidth: double.infinity,
),
// Center(
// child: Image.network(images[index],
// fit: BoxFit.cover, width: 1000)
),
);
},
),
SizedBox(
height: 5,
),
Expanded(
// flex: 1,
child: CustomScrollView(slivers: <Widget>[
SliverToBoxAdapter(
child: Container(
padding: EdgeInsets.only(top: 0),
height: 30,
margin: EdgeInsets.only(top: 5, bottom: 5),
child: ListView(
scrollDirection: Axis.horizontal,
children: <Widget>[
_tagItem('#DAJGI'),
_tagItem('#Advertisements'),
_tagItem('Animal'),
_tagItem('Travel'),
_tagItem('Happy'),
_tagItem(
'Art',
),
]))),
]),
),
searching
? ListView.separated(
addAutomaticKeepAlives: false,
physics: BouncingScrollPhysics(),
itemBuilder: (context, index) =>
_UserTile(user: list[index]),
separatorBuilder: (_, index) => Divider(
color: Colors.transparent,
height: 0,
),
itemCount: list?.length ?? 0,
)
: Expanded(
child: GridView.count(
crossAxisCount: 3,
children:
List.generate(onlyImages.length, (index) {
return GestureDetector(
onTap: () {
FeedModel model = onlyImages[index];
onTweetPressed(context, model);
},
onLongPress: () {
_createPopupContext;
FeedModel model = onlyImages[index];
onTweetPressed(context, model);
},
child: Container(
child: Card(
child: onlyImages
.elementAt(index)
.imagesPath
.length >
0
? CachedNetworkImage(
imageUrl: onlyImages
.elementAt(index)
.imagesPath[0],
fit: BoxFit.cover,
)
:
//Container()
Center(
child: Text(onlyImages
.elementAt(index)
.description),
)),
));
}),
),
),
],
)))
结果：
