Questions tagged [dart-stream]
22 questions
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Stream Listening For List Updates
I'm trying to understand how to use streams to notify listeners when there is a new addition to a list, below I wrote an example program that sums up what I'm trying to accomplish. Everytime there is a NEW string added to the existing 'names' list,…
OBurnsy22
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Generic Widget for listening Streams in Flutter
I would like to create a StatefulWidget which I'll use all over the app for listening streams of different types. Since I try to keep all the widgets Stateless I wanted to extract this functionality.
I've created this:
class StreamListener…
Karzel
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Data not rebuild (restart) with rxdart
I do floating alert which is controlled with stream. The logic of that alert is, when tap the OK button on it to turn true to stream and then close.
I will show my codes, and please fix me what my logic wrong.
Widget dataState(
AsyncSnapshot…
La Pyae
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How to return a Stream using an async* function in Flutter
I am working on a chat app using Flutter and Firebase. I am new to Dart and so got stuck when I wanted to create a function which fetches (using await) a particular document from one collection (forums) and use an array property of the forum…
Ali99
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Broadcast stream in Flutter only responds to one of multiple listeners
I receive data from a BLE unit and have a broadcast stream exposed by a singleton locator (Get_It) to my application.
From the data, I want to build several small display widgets that need to display different information based on the same data…
JadedEric
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What is the equivalent of Kotlin's Flow.flatMapLatest in Dart Stream?
In Kotlin there is Flow.flatMapLatest() function that:
Returns a flow that switches to a new flow produced by transform function every time the original flow emits a value. When the original flow emits a new value, the previous flow produced by…
Sergio
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Flutter Streambuilder stuck in connectionstate.waiting
i have a problem with a Flutter application.
I want to receive data from a firebase firestore by an Document id.
The problem is, i cant replicate the data in one collection, so i have to use two collections.
My data ist a Measurement(String,…
Sonac
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