Flutter widget that builds itself based on the latest snapshot of interaction with a Dart stream.
Questions tagged [stream-builder]
642 questions
-1
votes
2 answers
Can a StreamBuilder be outside the build method?
I can't find any information on where the StreamBuilder needs to be within the code so I am asking here.
I have a screen in my flutter app that has a lot of input textfields. Each textfield has this code structure:
TextField(
…
LostTexan
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votes
1 answer
how to use query on streambuilder flutter firestore
im using streambuilder, and i want the data 'order by' and 'where' at the same time.
cause everytime im using both of the query my list doesn'show up, but when im using only 1 query the list show up
here my…
Michelle Alexandra
- 11
- 4
-1
votes
1 answer
The getter 'documents' was called on null
I'm using flutter and firebase to make a to-do list. It keeps showing me this error even after I checked if my snap.data == null .But I am not sure why still doesn't work.
please help. I have checked similar problems like this but still didn't…
user13468400
-1
votes
1 answer
how to implement pagination using firebase and flutter with streams and use it in streambuilder
I have made this stream that fetch 10 user from firebase. and using streamBuilder it shows user in a Listview(Flutter App).
but how to use pagination in such case to get 10 more users after user scroll half of the screen.
this is my stream.which…
vijayrealdeal
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votes
1 answer
Awaiting for an async forEach to finish all iterations then collect the data in Dart
I need to combine 3 tables' data in a bloc:
getAll() async {
List filledList = [];
final moveInProgramList = await moveInProgramRepository.getAllFromDb();
moveInProgramList.forEach((mip) async {
final move =…
mrahimygk
- 512
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- 20
-1
votes
1 answer
How do you access data from a StreamBuilder if it requires searching for nested values?
I have a StreamBuilder that is connected to Firestore. It supplies a stream of type List. GameResults is a class that has a key called competitors, which is an array of Competitor objects, each of which has a key called competitorId,…
user3735816
- 225
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-1
votes
1 answer
StreamBuilder is rebuild with previous snapshot.data and not the initialData
I am trying to use bloc architecture in Flutter app and for this purpose I use StreamController and StreamBuilder. The issue is, that StreamBuilder repeats the last snapshot.data every time it's returned. I am nesting StreamBuilders. So there is one…
surToTheW
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-1
votes
1 answer
using didUpdateWidget to replace a stream causes "bad state: Stream has already been listened to"
I have a StreamBuilder that I want to be able to pause and unpause and, since StreamBuilder doesn't expose it's underlying StreamSubscription, I have to create a proxy stream to forward the source stream's elements while exposing a…
caseycrogers
- 226
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- 8
-1
votes
1 answer
Streambuilder not rebuilding after BLOC event
I am trying to implement pagination in my application but I have not been successful in doing so.
I am using Firebase, specifically Firestore with the BLOC pattern alongside Built Value which I started using recently to make pagination easier.
I…
dotmp3
- 494
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-2
votes
1 answer
Flutter Web: StreamBuilder browser resize & rebuild
I have a simple HomePage with a streambuilder listView. I know that flutter will rebuild/repaint as needed by design but does that mean the StreamBuilder will go get the same data over and over on every rebuild ?
The reason I ask is with every…
AhabLives
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votes
1 answer
Flutter - Streambuilder Error due to no return
I am getting an error with my Streambuilder. I do not understand how to fix it.
Please, can you help me to solve this?
Many thanks.
══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following…
Laurent Thomas
- 232
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votes
1 answer
"Invalid argument(s)" error on snapshot of StreamBuilder - Flutter
I have a quick question. "snapshot.hasError" condition is getting true and "snapshot.hasData" condition is false. Output that I am getting on print in "snapshot.hasError" is "Invalid argument(s)". What does it mean?
Stream is getting data from…
Faizan Kamal
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