【发布时间】：2021-10-11 09:16:31
【问题描述】：
我在使用可见性小部件时遇到问题。
我想要做的是通过依赖用户点击我的行来隐藏某些列表视图。但是当用户点击行时，所有的 Listview 都会显示出来。再次单击时，所有列表视图小部件都将消失。
我想做的是图片：
This is how my page looks
This is what happens when I click on arrow button or "Sezon 1" Text
This is what I want to do when I click on arrow button or "Sezon 1" Text
我想要做的是，当我点击第 2 季时，它会显示第 2 季的剧集。当我点击第 3 季时，它将显示第 3 季剧集等。
这是我的代码（我知道现在有点乱，对此深表歉意）： GestureDetector 每次点击都一样。
bool viewVisible = false;
void hideWidget() {
setState(() {
viewVisible = !viewVisible;
print(viewVisible);
});
StreamBuilder<QuerySnapshot>(
stream: seasons.snapshots(),
builder:
(BuildContext context, AsyncSnapshot asyncSnapshot) {
if (asyncSnapshot.hasError) {
return Center(
child:
Text('Error'));
} else {
if (asyncSnapshot.hasData) {
List<DocumentSnapshot> listOfDocumentSnap =
asyncSnapshot.data.docs;
return Padding(
padding: const EdgeInsets.only(top: 0, left: 0),
child: Align(
alignment: Alignment.topLeft,
child: Column(
children: [
ListView.builder(
shrinkWrap: true,
itemCount: listOfDocumentSnap.length,
itemBuilder: (context, index) {
var episodes = firestore
.collection('shows')
.doc(data.id)
.collection('Seasons')
.doc(listOfDocumentSnap[index].id)
.collection('Episodes');
return Column(
crossAxisAlignment:
CrossAxisAlignment.start,
mainAxisAlignment:
MainAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(
top: 0, left: 18, right: 18),
child: GestureDetector(
onTap: () {
hideWidget();
},
child: Container(
decoration: BoxDecoration(
borderRadius:
BorderRadius.circular(
8),
border: Border.all(
color: Colors.pink)),
child: Row(
children: [
SizedBox(
width: 20,
),
Text(
listOfDocumentSnap[index]
.get('name')
.toString()
.toUpperCase(),
style: TextStyle(
fontSize: 20,
color:
Colors.grey[800],
fontWeight:
FontWeight.w700),
),
Spacer(flex: 1),
Icon(
Icons.arrow_drop_down,
size: 45,
color: Colors.pink,
),
],
),
),
),
),
StreamBuilder<QuerySnapshot>(
stream: episodes.snapshots(),
builder: (BuildContext context,
AsyncSnapshot asyncSnapshot) {
if (asyncSnapshot.hasError) {
return Center(
child: Text(
'Error'));
} else {
if (asyncSnapshot.hasData) {
List<DocumentSnapshot>
listOfDocumentSnap =
asyncSnapshot.data.docs;
return Padding(
padding:
const EdgeInsets.only(
top: 5, left: 18.0),
child: Visibility(
visible: viewVisible,
child: Align(
alignment:
Alignment.topLeft,
child: Column(
children: [
ListView.builder(
shrinkWrap: true,
itemCount:
listOfDocumentSnap
.length,
itemBuilder:
(context,
index) {
return ListTile(
onTap: () {
setState(
() {
selectedIndex =
index;
});
},
trailing:
Icon(Icons
.play_arrow),
title: Text(listOfDocumentSnap[
index]
.id
.toString()),
);
/* return Text(
listOfDocumentSnap[
index]
.get(
'name'));*/
},
),
],
),
),
),
);
} else {
return Center(
child:
CircularProgressIndicator());
}
}
},
),
SizedBox(
height: 30,
)
],
);
},
),
],
),
),
);
} else {
return Center(child: CircularProgressIndicator());
}
}
},
),
【问题讨论】：
标签： flutter dart visibility