How to create horizontal ListView.builder - firebase

Hey there i want to make horizontal ListView.builder but it shows error that 'BoxConstraints forces and infinite width'. Actually i want to make a 'Buyer Request' page like Fiverr.
I achieved my goal using PageView.builder but when i use
if(snapshot.connectionState == ConnectionState.waiting)
return SpinKitDoubleBounce(color: kPrimaryColor);
it brings me back to 1st index whenever i swipe to next index.
So i want to use ListView.builder instead. Here is my code: (Hope someone will solve my problem)
if (snapshot.hasData)
return SizedBox(
child: ListView.builder(
// scrollDirection: Axis.horizontal,
itemCount: indexLength,
controller: PageController(viewportFraction: 1.0),
// onPageChanged: (int index) => setState(() => _index = index),
itemBuilder: (_, i) {
return SingleChildScrollView(
child: Card(
margin: EdgeInsets.all(10),
child: Wrap(
children: <Widget>[
ListTile(
leading: CircleAvatar(
backgroundColor: kPrimaryColor.withOpacity(0.8),
backgroundImage: AssetImage('assets/images/nullUser.png'),
child: snapshot.data[i]['PhotoURL'] != null
? ClipRRect(
borderRadius: BorderRadius.circular(50),
child:
Image.network(snapshot.data[i]['PhotoURL'],
width: 50,
height: 50,
fit: BoxFit.cover,),
)
: ClipRRect(
borderRadius: BorderRadius.circular(50),
child:
Image.asset('assets/images/nullUser.png',
width: 50,
height: 50,
fit: BoxFit.cover,),
)
),
title: Text(
snapshot.data[i]['Email'],
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w700,
color: Colors.black.withOpacity(0.7),
),
),
subtitle: Text(
snapshot.data[i]['Time'],
style: TextStyle(
color: Colors.black.withOpacity(0.6)),
),
),
Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Container(
decoration: BoxDecoration(
borderRadius:
BorderRadius.all(Radius.circular(5)),
color: Colors.grey[200],
),
padding: EdgeInsets.all(10),
child: Text(
snapshot.data[i]['Description'],
style: TextStyle(
color: Colors.black.withOpacity(0.6)),
),
),
SizedBox(
height: 8,
),
Container(
decoration: BoxDecoration(
borderRadius:
BorderRadius.all(Radius.circular(5)),
border:
Border.all(color: Colors.grey[300])),
child: ListTile(
leading: Icon(Icons.category_outlined),
title: Text(
'Category : ${snapshot.data[i]['Category']}',
style: TextStyle(
fontSize: 14,
color: Colors.grey,
),
),
),
),
SizedBox(height: 8),
Container(
decoration: BoxDecoration(
borderRadius:
BorderRadius.all(Radius.circular(5)),
border:
Border.all(color: Colors.grey[300])),
child: ListTile(
leading: Icon(Icons.location_pin),
title: Text(
snapshot.data[i]['Location'],
style: TextStyle(
fontSize: 14,
color: Colors.grey,
),
),
),
),
SizedBox(height: 8),
Container(
decoration: BoxDecoration(
borderRadius:
BorderRadius.all(Radius.circular(5)),
border:
Border.all(color: Colors.grey[300])),
child: ListTile(
leading: Icon(
Icons.attach_money,
color: kGreenColor,
),
title: Text(
'Budget : Rs.${snapshot.data[i]['Budget']}',
style: TextStyle(
fontSize: 14,
color: kGreenColor,
),
),
),
),
SizedBox(height: 8),
Container(
decoration: BoxDecoration(
borderRadius:
BorderRadius.all(Radius.circular(5)),
border:
Border.all(color: Colors.grey[300])),
child: ListTile(
leading: Icon(Icons.timer),
title: Text(
'Duration : ${snapshot.data[i]['Duration']}',
style: TextStyle(
fontSize: 14,
color: Colors.grey,
),
),
),
),
SizedBox(
height: 35,
),
sendOfferButton(),
SizedBox(
height: 15,
),
Center(
child: Text(
"${i + 1}/$indexLength",
style: TextStyle(fontSize: 13),
),
),
],
),
),
],
),
),
);
},
),
);
If anyone want to see full file.
Check it Here

Use pageview.builder instead :
Container(
height: MediaQuery.of(context).size.height / 3,
width: MediaQuery.of(context).size.width,
child: PageView.builder(
pageSnapping: false,
physics: PageScrollPhysics(),
controller: _pageController,
scrollDirection: Axis.horizontal,
itemCount:
_articleController.articleListDat.length,
itemBuilder: (context, index) {
return Container();
}
And pagecontroller
PageController _pageController =
PageController(initialPage: 2, viewportFraction: 0.9);

First wrap your ListView.builder into LimitedBox / container then set height on it. Then add
scrollDirection: Axis.horizontal,
It's Done

Related

LinearGradient button figma to flutter

My CSS:
background: linear-gradient(91.97deg, #F8A170 14.73%, #FFCD61 97.52%);
border-radius: 10px;
I want to go with flutter but when I give these colors to the container widget with child elevated button, I can't get the result I want. I made the button style transparent, but still I couldn't solve it.
Based on your image and css, You can simply decorate the style of ElevatedButton.
DecoratedBox(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(10),
gradient: const LinearGradient(
colors: [
Color(0xFFF8A170),
Color(0xFFFFCD61),
],
),
),
child: SizedBox(
width: 400,
height: 75,
child: ElevatedButton(
style: ElevatedButton.styleFrom(
elevation: 0,
primary: Colors.white.withOpacity(0),
padding: const EdgeInsets.all(0),
),
onPressed: () {},
child: const Text(
"Search a room",
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 22,
),
),
),
),
),
More about
DecoratedBox and ElevatedButton
Please refer to below example code
Using Elevated Button
LinearGradient yellowLinearGradientValues() {
return LinearGradient(
colors: [Colors.orange, Color(0xffFFB800).withOpacity(0.65)],
);
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: ElevatedButton(
onPressed: () {},
style: ElevatedButton.styleFrom(
elevation: 0.0,
padding: EdgeInsets.zero,
primary: Colors.transparent,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(8.0),
),
side: BorderSide(
width: 0.0,
color: Colors.orange,
style: BorderStyle.none,
),
tapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.all(
Radius.circular(8.0),
),
gradient: yellowLinearGradientValues(),
),
child: Padding(
padding: EdgeInsets.symmetric(
horizontal: 40.0,
vertical: 8.0,
),
child: Text(
"Search a Room" ?? "",
textAlign: TextAlign.start,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 24.0,
),
),
),
),
),
),
);
}
LinearGradient yellowLinearGradientValues() {
return LinearGradient(
colors: [Colors.orange, Color(0xffFFB800).withOpacity(0.7)],
);
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: ElevatedButton(
onPressed: () {},
style: ButtonStyle(
backgroundColor: MaterialStateProperty.all(Colors.transparent),
elevation: MaterialStateProperty.all(0.0),
padding: MaterialStateProperty.all(EdgeInsets.zero),
tapTargetSize: MaterialTapTargetSize.shrinkWrap,
),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.all(
Radius.circular(8.0),
),
gradient: yellowLinearGradientValues(),
),
child: Padding(
padding: EdgeInsets.symmetric(
horizontal: 40.0,
vertical: 8.0,
),
child: Text(
"Search a Room" ?? "",
textAlign: TextAlign.start,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold,
fontSize: 24.0,
),
),
),
),
),
),
);
}

How do i reduce the number of firestore reads in flutter

I am building an app that fetches data from firestore using streambuilder.
I have written only 6 documents on firestore but i am getting over 350 reads just for one phone, please how can i reduce this?
Also i saw an article on how to use Cache to reduce the number of reads but that was for Java(Android), I don't know how to use it in flutter.
StreamBuilder<QuerySnapshot>(
stream: Firestore.instance
.collection("free")
.where("created", isGreaterThan: DateTime.now().subtract(Duration(hours: 24)))
.snapshots(),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Text('.....Loading');
}
return ListView.builder(
scrollDirection: Axis.vertical,
itemCount: snapshot.data.documents.length,
itemBuilder: (context, index) {
DocumentSnapshot free =
snapshot.data.documents[index];
return Container(
padding: EdgeInsets.all(10),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Column(
children: [
Text(
'${free['safe']['time']}',
style: TextStyle(fontSize: 18),
),
SizedBox(
height: 3,
),
Text(
'${free['safe']['date']}',
style: TextStyle(fontSize: 13),
),
],
),
// SizedBox(width: 20,),
SizedBox(
width:
0.5 * MediaQuery.of(context).size.width,
child: Column(
crossAxisAlignment:
CrossAxisAlignment.start,
children: [
Text(
'${free['safe']['league']}',
style: TextStyle(fontSize: 15),
),
SizedBox(
height: 2,
),
Text(
'${free['safe']['home']}',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w500),
),
SizedBox(
height: 3,
),
Text(
'vs ${free['safe']['away']}',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.w500),
),
SizedBox(
height: 3,
),
Text(
'${free['safe']['tip']}',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: Colors.redAccent),
),
],
),
),
// SizedBox(width: 20,),
Column(
children: [
Text(
'${free['safe']['odd']}',
style: TextStyle(fontSize: 18),
),
SizedBox(
height: 4,
),
Builder(
builder: (context) {
if (free['safe']['result'] == 'win') {
return Column(
children: [
Icon(
Icons.check_circle,
color: Colors.green,
),
SizedBox(
height: 8,
),
Text(
'WON',
style: TextStyle(
color: Colors.green,
fontWeight:
FontWeight.bold),
)
],
);
} else if (free['safe']['result'] ==
'loss') {
return Column(
children: [
Icon(
Icons.close,
color: Colors.red,
),
SizedBox(
height: 8,
),
Text(
'LOSS',
style: TextStyle(
color: Colors.red,
fontWeight:
FontWeight.bold),
)
],
);
} else {
return Text('...');
}
},
),
],
),
],
),
);
});
}),

How to merge two collections in Firebase flutter application?

I have created a chat application using flutter and store data in Firebase .Firebase contains two collections .One collection contains user details and another one collection contains user chats with other user.I want to merge two collection details .How to get other user details stored in user collections?
I have attached with screenshots.
Firebase collection
Flutter code
I have the same thing implemented in my Application. What I did is I use the Streambuilder widget twice, one to pull the chats, each and every chat contains a sender_id, which I then use the Id in the second Stream builder to pull user info.
Check the code below.This is all chats page:
#override
Widget build(BuildContext context) {
return StreamBuilder(
stream: FirebaseFirestore.instance
.collection('MyChatHeads')
.doc(_onlineUserId)
.collection('Heads')
.orderBy('head_time', descending: true)
.snapshots(),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Scaffold(
body: Center(
child: SpinKitThreeBounce(
color: Colors.black54,
size: 20.0,
),
),
);
} else {
if (snapshot.data.documents.length == 0) {
return Scaffold(
body: placeHolder(),
);
placeHolder();
} else {
return Scaffold(
floatingActionButton: FloatingActionButton(
onPressed: () {
Navigator.push(
context,
CupertinoPageRoute(
builder: (_) => SearchUsersPage(
userId: _onlineUserId,
),
),
);
},
child: Icon(Icons.contacts_rounded),
foregroundColor: Colors.white,
backgroundColor: Color(0xff47c8b0),
),
body: ListView.builder(
itemCount: snapshot.data.documents.length,
itemBuilder: (context, index) {
DocumentSnapshot myChatHeads = snapshot.data.documents[index];
return chatHeadItem(
index, myChatHeads, snapshot.data.documents.length);
},
),
);
}
}
},
);
}
The item in all chats page
Widget chatHeadItem(int index, DocumentSnapshot myChatHeads, int length) {
return StreamBuilder(
stream: FirebaseFirestore.instance
.collection('Users')
.where('user_id', isEqualTo: myChatHeads['head_subject'])
.snapshots(),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Center(
child: SpinKitThreeBounce(
color: Colors.black54,
size: 20.0,
),
);
} else {
if (snapshot.data.documents.length == 0) {
return Container(
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 16.0,
),
child: Row(
children: [
CircleAvatar(
radius: 30,
backgroundColor: Colors.green,
child: CircleAvatar(
radius: 28,
backgroundColor: Colors.white,
child: Image(
height: 56,
width: 56,
image: AssetImage('assets/images/holder.png'),
fit: BoxFit.cover,
),
),
),
SizedBox(
width: 10,
),
Flexible(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(
height: 10,
),
Text(
'User not found',
style: GoogleFonts.quicksand(
color: Colors.black87,
fontWeight: FontWeight.bold,
fontSize: 16.0,
letterSpacing: .5,
),
),
//setCompanyName(myInterviews),
SizedBox(
height: 4.0,
),
InkWell(
onTap: () {
Navigator.push(
context,
CupertinoPageRoute(
builder: (_) => ChatsEngagePage(
userId: _onlineUserId,
secondUserId: myChatHeads['head_subject'],
),
),
);
},
child: Text(
'${myChatHeads['head_last_message']}',
maxLines: 2,
overflow: TextOverflow.ellipsis,
style: GoogleFonts.quicksand(
color: Colors.black87,
fontSize: 16.0,
letterSpacing: .5,
),
),
),
SizedBox(
height: 10,
),
],
),
),
],
),
),
);
} else {
DocumentSnapshot secondUserInfo = snapshot.data.documents[0];
return Container(
//color: Colors.green,
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 16.0,
),
child: Column(
children: [
index == 0
? SizedBox(
height: 6,
)
: SizedBox(
height: 0,
),
InkWell(
onTap: () {
Navigator.push(
context,
CupertinoPageRoute(
builder: (_) => ChatsEngagePage(
userId: _onlineUserId,
secondUserId: myChatHeads['head_subject'],
userName: secondUserInfo['user_name'],
userImage: secondUserInfo['user_image'],
),
),
);
},
child: Row(
children: [
InkWell(
onTap: () {
Navigator.push(
context,
CupertinoPageRoute(
builder: (_) => PublicProfilePage(
userId: _onlineUserId,
secondUserId: secondUserInfo['user_id'],
),
),
);
},
child: CachedNetworkImage(
imageUrl: secondUserInfo['user_image'],
imageBuilder: (context, imageProvider) =>
CircleAvatar(
radius: 30,
backgroundColor: Colors.green,
child: CircleAvatar(
radius: 28,
backgroundColor: Colors.white,
backgroundImage: imageProvider,
),
),
placeholder: (context, url) => CircleAvatar(
radius: 30,
backgroundColor: Colors.green,
child: CircleAvatar(
radius: 28,
backgroundColor: Colors.white,
backgroundImage: AssetImage(
'assets/images/holder.png',
),
),
),
errorWidget: (context, url, error) =>
CircleAvatar(
radius: 30,
backgroundColor: Colors.green,
child: CircleAvatar(
radius: 28,
backgroundColor: Colors.white,
backgroundImage: AssetImage(
'assets/images/holder.png',
),
),
),
),
),
SizedBox(
width: 10,
),
Flexible(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(
height: 10,
),
Row(
mainAxisAlignment:
MainAxisAlignment.spaceBetween,
children: [
Flexible(
child: Text(
'${secondUserInfo['user_name']}',
style: GoogleFonts.quicksand(
color: Colors.black87,
fontWeight: FontWeight.bold,
fontSize: 16.0,
letterSpacing: .5,
),
maxLines: 1,
overflow: TextOverflow.ellipsis,
),
),
Text(
timeAgoSinceDateEn(
DateTime.fromMillisecondsSinceEpoch(
myChatHeads['head_time'],
).toString(),
),
//postSnap['press_formatted_date'],
style: GoogleFonts.quicksand(
textStyle: TextStyle(
fontSize: 14.0,
color: Colors.grey,
),
),
),
],
),
//setCompanyName(myInterviews),
SizedBox(
height: 4.0,
),
Text(
'${myChatHeads['head_last_message']}',
maxLines: 2,
overflow: TextOverflow.ellipsis,
style: GoogleFonts.quicksand(
color: Colors.black87,
fontSize: 16.0,
letterSpacing: .5,
),
),
SizedBox(
height: 10,
),
],
),
),
],
),
),
index == length - 1
? Container()
: Divider(
//color: Colors.red,
),
index == length - 1
? SizedBox(
height: 4,
)
: SizedBox(
height: 0,
),
],
),
),
);
}
}
},
);
}
This is a single chat page:
body: Stack(
children: [
Container(
height: double.infinity,
width: double.infinity,
color: Colors.grey[100],
child: StreamBuilder(
stream: FirebaseFirestore.instance
.collection('Chats')
.doc(userId)
.collection(secondUserId)
.orderBy('message_time', descending: true)
.snapshots(),
builder: (context, snapshot) {
if (!snapshot.hasData) {
return Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 16),
child: SpinKitThreeBounce(
color: Colors.black54,
size: 20.0,
),
),
);
} else {
if (snapshot.data.documents.length == 0) {
return Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 16),
child: Container(
width: MediaQuery.of(context).size.width / 3,
child: Image(
image: AssetImage('assets/images/empty.png'),
width: double.infinity,
),
),
),
);
} else {
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 8.0),
child: ListView.builder(
shrinkWrap: true,
reverse: true,
// physics: NeverScrollableScrollPhysics(),
// primary: false,
padding: EdgeInsets.zero,
itemCount: snapshot.data.documents.length,
itemBuilder: (context, index) {
DocumentSnapshot myPresses =
snapshot.data.documents[index];
if (myPresses['message_owner'] == userId) {
return Padding(
padding: index == 0
? EdgeInsets.only(bottom: height + 26)
: EdgeInsets.only(bottom: 0),
child: Bubble(
margin: BubbleEdges.only(top: 10),
nip: BubbleNip.rightTop,
alignment: Alignment.topRight,
color: Colors.lightGreen[100],
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Text(
myPresses['message_body'],
style: GoogleFonts.quicksand(
fontSize: 16,
color: Colors.black87,
),
),
Text(
timeAgoSinceDateEn(
DateTime.fromMillisecondsSinceEpoch(
myPresses['message_time'],
).toString(),
),
//postSnap['press_formatted_date'],
style: GoogleFonts.quicksand(
textStyle: TextStyle(
fontSize: 14.0,
color: Colors.grey,
),
),
),
],
),
),
);
} else {
return Padding(
padding: index == 0
? EdgeInsets.only(bottom: height + 26)
: EdgeInsets.only(bottom: 0),
child: Bubble(
margin: BubbleEdges.only(top: 10),
alignment: Alignment.topLeft,
nip: BubbleNip.leftTop,
color: Color(0xffd4eaf5),
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Text(
myPresses['message_body'],
style: GoogleFonts.quicksand(
fontSize: 16,
color: Colors.black87,
),
),
Text(
timeAgoSinceDateEn(
DateTime.fromMillisecondsSinceEpoch(
myPresses['message_time'],
).toString(),
),
//postSnap['press_formatted_date'],
style: GoogleFonts.quicksand(
textStyle: TextStyle(
fontSize: 14.0,
color: Colors.grey,
),
),
),
],
),
),
);
}
},
),
);
}
}
},
),
),
Positioned(
bottom: 10.0,
left: 10.0,
right: 10.0,
child: MeasuredSize(
onChange: (Size size) {
setState(() {
print(size);
height = size.height;
});
},
child: Container(
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.all(
Radius.circular(0),
),
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.4),
spreadRadius: 2,
blurRadius: 3,
offset: Offset(0, 2), // changes position of shadow
),
],
),
//height: 58,
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 8.0, vertical: 8.0),
child: Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Expanded(
child: TextFormField(
controller: textEditingController,
keyboardType: TextInputType.multiline,
textCapitalization: TextCapitalization.sentences,
maxLength: 800,
maxLines: null,
style: GoogleFonts.quicksand(
textStyle: TextStyle(
fontSize: 14.0,
color: Colors.black54,
letterSpacing: .5,
),
),
decoration: InputDecoration(
labelText: 'Message',
contentPadding: const EdgeInsets.symmetric(
horizontal: 0.0, vertical: 0.0),
errorStyle: TextStyle(color: Colors.brown),
),
onChanged: (val) {
setState(() => _message = val);
},
validator: (val) =>
val.length < 1 ? ('Too short') : null,
),
),
SizedBox(
width: 16,
),
InkWell(
onTap: () {
_submitMessage();
},
child: Padding(
padding:
const EdgeInsets.only(right: 8.0, bottom: 20),
child: Icon(
Icons.send_rounded,
color: Colors.green,
),
),
),
],
),
),
),
),
),
],
),

How to display the data from firebase using FutureBuilder in Flutter

Future<List<DocumentSnapshot>> getData() async {
var firestore = Firestore.instance;
QuerySnapshot qn = await firestore
.collection("LiveGames")
.where("Title", isEqualTo: "Solo")
.getDocuments();
return qn.documents;
}
I have extracted the data using this function getData() to use it in the FutureBuilder.
FutureBuilder(
future: getData(),
builder: (_, AsyncSnapshot<List<DocumentSnapshot>> snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return Padding(
padding: const EdgeInsets.only(
top: 50,
),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
Center(
child: SpinKitCircle(
color: Color.fromRGBO(91, 74, 127, 10),
size: 50.0,
),
),
],
),
);
} else {
return ListView.builder(
itemCount: snapshot.data.length,
itemBuilder: (_, index) {
return SingleChildScrollView(
child: Column(
children: <Widget>[
Container(
margin: EdgeInsets.all(10),
height: 185,
width: double.infinity,
child: Stack(
children: <Widget>[
Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
topLeft: Radius.circular(10),
topRight: Radius.circular(10)),
color: Colors.blueGrey.shade800,
),
height: 150,
width: double.infinity,
child: Column(
mainAxisAlignment:
MainAxisAlignment.spaceEvenly,
children: <Widget>[
SizedBox(
height: 6,
),
Expanded(
child: Row(
mainAxisAlignment:
MainAxisAlignment.spaceAround,
children: <Widget>[
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Date",
style: TextStyle(
color: Colors.white,
)),
Text(
snapshot.data[index]
.data["GameDate"],
style: TextStyle(
color: Colors.white,
)),
],
),
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Time",
style: TextStyle(
color: Colors.white,
)),
Text(
snapshot.data[index]
.data["GameTime"],
style: TextStyle(
color: Colors.white,
)),
],
),
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Map",
style: TextStyle(
color: Colors.white,
)),
Text(
snapshot.data[index]
.data["MapName"],
style: TextStyle(
color: Colors.white,
)),
],
),
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Mode",
style: TextStyle(
color: Colors.white,
)),
Text(
snapshot.data[index]
.data["GameMode"],
style: TextStyle(
color: Colors.white,
)),
],
)
],
),
),
Divider(
color: Colors.white,
),
Expanded(
child: Row(
mainAxisAlignment:
MainAxisAlignment.spaceAround,
children: <Widget>[
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Players Joined",
style: TextStyle(
color: Colors.white,
)),
Text(
"${snapshot.data[index].data["RemainingPlayers"]}",
style: TextStyle(
color: Colors.white,
)),
],
),
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Winning",
style: TextStyle(
color: Colors.white,
)),
Expanded(
child: FlatButton(
child: Icon(
Icons.arrow_drop_down,
size: 18,
color: Colors.white,
),
onPressed: () {
showModalBottomSheet(
backgroundColor:
Colors.orange
.shade500,
shape:
RoundedRectangleBorder(
borderRadius:
BorderRadius
.only(
topLeft:
Radius.circular(
15),
topRight:
Radius.circular(
15),
)),
context: context,
builder: (context) {
return Container(
child: Column(
children: <Widget>[
],
),
);
},
);
}))
],
),
Column(
children: <Widget>[
SizedBox(
height: 5,
),
Text("Remaining Players",
style: TextStyle(
color: Colors.white,
)),
Text(
"${snapshot.data[index].data["TotalSeats"]}",
style: TextStyle(
color: Colors.white,
)),
],
)
],
),
),
Divider(
color: Colors.white,
),
Expanded(
child: Container(
child: Row(
mainAxisAlignment:
MainAxisAlignment.spaceAround,
children: <Widget>[
Column(
children: <Widget>[
Text("Per Kill",
style: TextStyle(
color: Colors.white,
)),
Text(
"₹ ${snapshot.data[index].data["PerKill"]}",
style: TextStyle(
color: Colors.white,
)),
],
),
Column(
children: <Widget>[
Text("Entry Fees",
style: TextStyle(
color: Colors.white,
)),
Text(
"₹ ${snapshot.data[index].data["Entryfees"]}",
style: TextStyle(
color: Colors.white,
)),
],
),
],
),
),
),
],
),
),
Container(
margin: EdgeInsets.only(top: 150),
height: 35,
width: double.infinity,
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(10),
bottomRight: Radius.circular(10)),
color: Colors.orange,
),
child: Padding(
padding: const EdgeInsets.only(left: 125),
child: InkWell(
onTap: () {
print("Solo Joined");
},
child: Text(
"Join Contest",
style: TextStyle(
color: Colors.white,
fontSize: 25,
fontFamily: "OpenSans",
fontWeight: FontWeight.bold,
),
),
),
),
),
],
),
),
],
),
);
});
}
},
),
And then i have displayed some Widgets according to the data.
But in database i have some rank values and i want to display the data in the bottomsheet if the rank from 2 to 10 and 11 to 20 and 21 to 40 are zeros i do not want to display in the bottom sheet only rank1 player i want it to display but if Rank1 player and all the players from rank 1 to 40 some values are there then i have to display the all the data in the bottomSheet
From your question, I don't see any issues on using FutureBuilder in Flutter. The issue here seems to lean more on how you can manage your Firestore data to be displayed.
If you'd like to filter out Players to be displayed base from their Rank. What you can do here is create a Collections for Players where you can sort them by Rank.
Say you'd only like to display Players with Rank 1 in your List.
FirebaseFirestore.instance
.collection('players')
.where('rank', isEqualTo: 1)
.snapshots()
For Rank with ranges, say Ranks 2-10, compound queries can be utilized. For querying in Flutter, you can check the API reference for its equivalence.
FirebaseFirestore.instance
.collection('players')
.where('rank', isGreaterThanOrEqualTo: 2)
.where('rank', isLessThanOrEqualTo: 10)
.snapshots()
Here's a sample that I posted previously that filters and displays all carModels base from the selected carMake. It uses StreamBuilder though. I'm curious on your choice for using FutureBuilder instead of StreamBuilder.
Try the following example:
#override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: FutureBuilder<QuerySnapshot>(
future: FirebaseFirestore
.instance
.collection('users') // 👈 Your collection name here
.get(),
builder: (_, snapshot) {
if (snapshot.hasError) return Text('Error = ${snapshot.error}');
if (snapshot.connectionState == ConnectionState.waiting) {
return const Text("Loading");
}
return ListView(
children: snapshot.data!.docs.map((DocumentSnapshot document) {
Map<String, dynamic> data = document.data()! as Map<String, dynamic>;
return ListTile(
title: Text(data['avatar']), // 👈 Your valid data here
);
}).toList());
},
)),
);
}
Also refer: How to use StreamBuilder and FutureBuilder for single and multiple documents

how to print value from firestore in flutter

how to print value of field.
what I have tried :
print(documents[index].data['Likes.$usersId']);
actually I need this for toggle between icons.
thanks.
Update:
Widget build(BuildContext context) {
return Container(
child: StreamBuilder<QuerySnapshot>(
stream: UserManagement().getPostsStream(),
builder: (_, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return Center(
child: CircularProgressIndicator(),
);
} else {
final List<DocumentSnapshot> documents = snapshot.data.documents;
return ListView.builder(
itemCount: documents.length,
itemBuilder: (_, index) {
return Card(
elevation: 4,
child: Padding(
padding: EdgeInsets.only(left: 10.0, top: 10),
child: InkWell(
onTap: () => navigateToDetail(
documents[index],
documents[index].data["Userid"],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
mainAxisSize: MainAxisSize.min,
children: <Widget>[
new Row(
children: <Widget>[
Container(
width: 45,
height: 45,
decoration: BoxDecoration(
image: DecorationImage(
image: NetworkImage(
documents[index].data["User Pic"]),
fit: BoxFit.cover,
),
borderRadius: BorderRadius.all(
Radius.circular(50.5)),
),
),
Padding(
padding: EdgeInsets.only(left: 15),
child: Text(
documents[index].data["Name"],
style: TextStyle(
fontWeight: FontWeight.w600,
fontSize: 18),
),
),
],
),
Padding(
padding: EdgeInsets.only(left: 60, bottom: 10),
child: Text(
DateFormat.yMMMd().add_jm().format(
DateTime.parse(documents[index]
.data["Creation Time"]
.toDate()
.toString())),
style: TextStyle(
color: Colors.black38, fontSize: 12),
),
),
Flexible(
child: Padding(
padding: EdgeInsets.only(left: 75, right: 15),
child: Text(
documents[index].data["Description"],
style: TextStyle(fontSize: 16),
),
),
),
Padding(
padding: EdgeInsets.only(
left: 75, top: 15, bottom: 8),
child: Text(
documents.length.toString() +
"Files uploaded",
style: TextStyle(
color: Colors.blueAccent,
fontSize: 14,
fontStyle: FontStyle.italic),
),
),
Divider(),
new Row(
children: <Widget>[
Expanded(
child: Row(
children: <Widget>[
IconButton(
onPressed: () {
print(documents[index].data['Likes.$usersId']);
},
icon: documents[index].data['$usersId'] == true ? Icon(Icons.favorite,
color: Colors.redAccent,
size: 23.0) : Icon(Icons.favorite_border,
color: Colors.redAccent,
size: 23.0)
),
/*Text(documents[index].data['Likes'].length.toString()),*/
],
),
),
Expanded(
child: IconButton(
onPressed: () {
navigateToDetail(documents[index],
documents[index].data["Userid"],);
},
icon: Icon(
Icons.chat_bubble_outline,
color: Colors.blue,
size: 23.0,
),
),
),
Expanded(
child: IconButton(
onPressed: () {},
icon: Icon(
Icons.near_me,
color: Colors.blue,
size: 23.0,
),
),
),
],
),
],
),
),
),
);
});
}
}),
);
}
This is to get Posts :
Stream<QuerySnapshot> getPostsStream() {
return Firestore.instance.collection("Posts").orderBy(
"Creation Time", descending: true).snapshots();
}
Change this:
print(documents[index].data['Likes.$usersId']);
into this:
print(documents[index].data['Likes'][usersId]);

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