Issue
Im using Flutter with Firestore to make Investing Application.
enter image description here
In this page, I get Firestore’s data in Streambuilder.
The data what i recieved are displayed in Listview with Inkwell.
What I want to do is when I click the Inkwell, then change the bottom left’s Text Widget’s text into Listview’s number.
So, I used the setstate method with FutureBuilder.
It works but there are some problems.
When I click the Inkwell, then whole page reloads.
So, My Streambuilder widgets displays circleprogressindicator short.
However I think this is not good for users.
I want to solve this problem.
Is there any solution?
My code is in here.
I’m sorry for my poor English and I hope my problem was properly communicated.
https://github.com/RGLie/Investing-Game-ICISTS/blob/main/lib/startup_1_trade.dart
Solution
You can fix the rebuilds by storing the streams in variables outside of the build
method and using them in the StreamBuilder
widgets.
class Startup1Trade extends StatefulWidget {
...
}
class _Startup1TradeState extends State<Startup1Trade> {
...
CollectionReference prices = FirebaseFirestore.instance.collection('startup_1');
CollectionReference users = FirebaseFirestore.instance.collection('users');
final Stream priceStream = prices.doc('price').snapshots();
final Stream userStream = users.doc(widget.user.uid).snapshots();
@override
Widget build(BuildContext context) {
...
}
}
Use them like this:
StreamBuilder<DocumentSnapshot>(
stream: priceStream,
builder: (context, snap) {
...
}
}
StreamBuilder<DocumentSnapshot>(
stream: userStream,
builder: (context, snap) {
...
}
}
Answered By – Victor Eronmosele
Answer Checked By – David Goodson (FlutterFixes Volunteer)