Issue I have created a demo for learning async and await Here it is happening that a statement is executed before await function.. According to me output should be A second Z First but its giving output : A Z
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create async await steps with Timer instead of Future.delayed(…)
Issue Is it possible to perform async steps with Timer instead of Future.delayed? The main reason is the availability of cancel() method in the Timer class, which allows me to cancel a running timer when a widget is disposed in
Continue readingDart's runZoned – how is it different than async await
Issue So I’ve read the docs and this example in particular: runZoned(() { HttpServer.bind(‘0.0.0.0’, port).then((server) { server.listen(staticFiles.serveRequest); }); }, onError: (e, stackTrace) => print(‘Oh noes! $e $stackTrace’)); I understand the whole zone-local-values thing, and the sort of AOP option of
Continue readingWhy is flutter printing out widget name?
Issue I have a problem with flutter printing out the name and rendering Widget name after running the application class MyApp extends StatefulWidget { const MyApp({Key? key}) : super(key: key); @override State<MyApp> createState() => _MyAppState(); } class _MyAppState extends State<MyApp>
Continue readingHow do I convert 'Future<String?>' to 'Future<String>?' in Flutter?
Issue So basically Iam working with the network_info_plus package to read the current connected Wifiname of the device. I want to use a FutureBuilder to get the future from await info.getWifiName();. The problem is that the method returns a Future<String?>.
Continue readingFutures/Promises, and tracking down bugs
Issue For short, simple pieces of code, Futures (dart), or Promises (js), seem to offer a vaguely useful solution to the horrors of callbacks. With large software the problem arises when for example, the server you are talking to starts
Continue readingGetting a Future from an ImageElement load
Issue THis is a followup from Use of futures for async loading My WebGL/Dart program needs to create lots of opengl data while initializing. It all gets loaded asynchronously and uses futures to process data when it is loaded and
Continue readingHow return Future from Future? Or this is prohibited in async library?
Issue How I can return Future value from Future object? This code does not work. import ‘dart:async’; void main() { var temp = foo(); temp.then((Future<int> future) { future.then((int result) { print(result); }); }); } Future<Future<int>> foo() { return new Future<Future<int>>(()
Continue readingHow to create a Dart Stream from a JavaScript listener
Issue I would like to create a Stream which should contain the same elements like the callback in the following code: chromeTabs[‘onUpdated’].callMethod(‘addListener’, [(tabId, changeInfo, tab) => print(“tabId = $tabId”)]); I read the tutorials/articles from Chris Buckett and am not sure
Continue readingDART: How to write timeconsuming function returning a Future
Issue I have to write a timeconsuming function that will return a Future, if it´s ready. Is the approach below correct, or does my timeconsuming algorithm in line 9 block the program til it´s ready. In this case, what would
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