I can't get data from database with 'for' - flutter

Question

I use flutter and firebase but ı cant get multiple data from database help me
hotelekle(
"${hotel5yildiz[0]["foto"]}",
"${hotel5yildiz[0]["adi"]}",
"${hotel5yildiz[0]["puan"]}"),
Padding hotelekle(String resimadres, String hotelad, String puan) {
return Padding(
padding: const EdgeInsets.only(
right: 40,
left: 40,
bottom: 15,
),
child: Container(
child: Column(
children: [
Padding(
padding: const EdgeInsets.only(bottom: 10),
child: Container(
decoration: BoxDecoration(
boxShadow: [
BoxShadow(
color: Colors.black.withOpacity(0.2),
spreadRadius: 3,
blurRadius: 4,
offset: Offset(0, 3),
),
],
borderRadius: BorderRadius.circular(40),
),
child: ClipRRect(
borderRadius: BorderRadius.circular(40),
child: Image.network(
"$resimadres",
width: 300,
height: 150,
),
),
),
),
Padding(
padding: const EdgeInsets.only(right: 35, left: 40, bottom: 7),
child: Row(
children: [
Text(
"$hotelad",
style: TextStyle(
color: Color(0xff2C1E40),
fontWeight: FontWeight.bold,
fontSize: 18),
),
],
),
),
Padding(
padding: const EdgeInsets.only(right: 35, left: 45),
child: Row(
children: [
Icon(
Icons.star,
color: Colors.amber,
size: 16,
),
SizedBox(
width: 5,
),
Text(
"$puan",
style: TextStyle(
color: Colors.grey,
fontWeight: FontWeight.bold,
fontSize: 15,
),
),
SizedBox(
width: 15,
),
Icon(
Icons.bed,
color: Color(0xff4A9CC9),
size: 22,
),
SizedBox(
width: 5,
),
Text(
"Hotel",
style: TextStyle(
color: Colors.grey,
fontWeight: FontWeight.bold,
fontSize: 15,
),
),
],
),
),
],
),
),
);
}

Answer 1

By multiple data, I'm assuming you want to get a list of items from firebase. In that case, you can use StreamBuilder. I am sharing with you a snippet of code and you can adjust based on your needs.
On the widget tree, where you want to render the list of data, add in a StreamBuilder
Expanded(
child: StreamBuilder<dynamic?>(
stream: FirebaseFirestore.instance.collection('collection').snapshots();,
builder:(context, snapshot) {
if(snapshot.hasError){
return Text(snapshot.error.toString());
} else if(snapshot.hasData){
final List sd = [];
snapshot.data!.docs.map((DocumentSnapshot doc) {
Map m = doc.data() as Map<String, dynamic>;
sd.add(m);
}).toList();
return ListView.builder(
itemCount: sd.length,
itemBuilder: (BuildContext context, int index){
return Item(name: sd[index]['attribute1'], text: sd[index]['attribute2'],);
},
);
} else {
return Center(child: CircularProgressIndicator(),);
}
},
)
)
If you have any further queries, let me know and I'll make sure to get back to you.