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Questions - stream-builder

How can I get the value of a selected answer and match it with the right answer from the backend in flutter Streambuilder?

I am trying to building a marker for a cbt app in flutter. a bit new to this. I've gotten the questions and the answers from the backend into a stream. I'm trying to identify each value to be able to ...
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flochristos

php

mysql

flutter

dart

stream-builder

Votes: 0

Answers: 1

Latest Answer

I am assuming that the parameter answer is the right answer. So you just need to compare what user choose and this answer field. (if answer is not it, you should store the correct answer in your backe...
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Thiago Silva

Flutter SteamBuilder throwing error on first argument context

I have a problem here with flutter (v2.8.1) on my windows. I am trying to use StreamBuilder class to fetch data from firebase but it is not working anyhow. I tried to use BuildContext context but it i...
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Syed Bilal

firebase

flutter

dart

google-cloud-firestore

stream-builder

Votes: 0

Answers: 1

Latest Answer

The builder argument should be a function that returns a widget. builder: (context, snapshot) { // return a widget that uses the snapshot // for example return Text(snapshot.data().title); }
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Lee3

Why does `const` modifier avoid StreamBuilder rebuild in Flutter?

In my app's homepage I call a ScoreListPageBody that is rebuild when I change the Locale from another page (SettingsPage). To force rebuild it, it contains a StreamBuilder that is triggered when the L...
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Galactose

flutter

stream-builder

Votes: 0

Answers: 1

Latest Answer

The const modifier impact the StreamBuilder because this is inside ScoreListPageBody() and you put the modifier in the PageView which is one step above the tree. - PageView -- ScoreList() -- ...
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Felipe Vergara

Problem reading last entry in Firestore - Class '_JsonQuerySnapshot' has no instance method '[]'

I am trying to read last entry from Firebase Friestore like this: This is my stream: final getLastEmotion = _emotionsDbReference .orderBy('timeStamp', descending: true) .limit(1) .snapshot...
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AturicLiqr

firebase

flutter

google-cloud-firestore

stream-builder

flutter-streambuilder

Votes: 0

Answers: 2

Latest Answer

You can use like this StreamBuilder( stream: getLastEmotion, builder: (BuildContext context, AsyncSnapshot lastEmotionSnapshot) { if (lastEmotionSnapshot.data == null) { return const CircularPro...
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Khadga shrestha

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