I have an async function which is called multiple times synchoronusly. List response = await Future.wait([future, future]) Inside, it popups a form and waiting for it to be submitted or cancelled. var val = await Navigator.push( context, MaterialPageRoute(builder : (context)…
Basically in the AppDelegate method of my app I connect to Firebase. I then need to initialize my UserProfileService before the app launches. Inside UserProfileService init I connect to Firebase to get the authenticated user data and store it. The…
First of all, I am an amateur and I thank you in advance for your help ! In my project, I retrieve data from Cloud Firestore via this function : recupereOrganisations(pays) async { listeOrganisations.clear(); try{ final reponseGet = (await FirebaseFirestore.instance.collection("Organisations").where("Pays",…
I have the following code: public partial class MetricsPage : ContentPage { public MetricsPage() { InitializeComponent(); using var client = new HttpClient(); client.BaseAddress = new Uri("http://example.com"); client.Timeout = new TimeSpan(0, 0, 3); client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Api-Key", "<my_key>"); client.DefaultRequestHeaders.Accept.Add( new MediaTypeWithQualityHeaderValue("application/json"));…
In the introductory section of the Concurrency chapter of "The Swift Programming Language" I read: When an asynchronous function resumes, Swift doesn’t make any guarantee about which thread that function will run on. This surprised me. It seems odd, comparing…
I have a longList where I need each element in the list to be sent to a database to return some a sub-list. I then display each value in it's own PageView using PageView.builder. and FutureBuilder. At first I was…
I'm new and currently learning Flutter, I have a question about FutureBuilder. My code is stuck at ConnectionState.waiting and I'm not sure why. My codes are import 'dart:convert'; import 'package:flutter/material.dart'; import 'package:http/http.dart' as http; class DartPad extends StatefulWidget { const…
import 'dart:async'; import 'dart:convert'; import 'package:http/http.dart' as http; void main() async { print('start api'); for (var i = 1; i < 4; i++) { print(unawaited(fetchApi(i))); } print('end api'); } Future<String> fetchApi(int idNum) async { final url = Uri.parse('https://jsonplaceholder.typicode.com/albums/$idNum'); final response…
I am trying to retrieve a document field value given a documentID. I have solved the db calling part, but I cannot send the data back up. It's almost as if the function this.userDbService.getVendorNameFromUserId below isn't being called at all.…
I have 2 publishers that return the same type of value. One publisher is meant to emit N/W responses and other is meant to emit cached responses. These publishers will be shared across multiple requests by different consumers. I am…