Flutter instance of future int
WebJul 21, 2024 · A simple answer is that if a function returns its value with a delay of some time, Future is used to get its value. Future calculate ( {required int val1, required int val2}) async { await Future.delayed (const Duration (seconds: 2)); return val1 + val2; } if we call the above function as.
Flutter instance of future int
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WebOct 14, 2024 · import 'dart:async'; class A { Future getInt() { return Future.value(10); } } class B { checkValue() async { final val = await A().getInt(); print(val == 10 ? "yes" : "no"); } } You can find more on that … WebMar 20, 2024 · I am trying to get the length of a collection in Firebase using Flutter. ... instance of Future firebase; dart; flutter; google-cloud-firestore; future; Share. Improve this question. Follow edited Mar 20, 2024 at 0:58. creativecreatorormaybenot.
WebJan 26, 2024 · Future getCount() async { DatabaseHelper helper = DatabaseHelper.instance; int counter = await helper.getNumberOfUsers(); return counter; } I want to get the result of this function into int variable to use it inside onPressed in … WebMar 23, 2024 · Flutter开发插件(swift、kotlin) 开发环境 flutter doctor [ ] Flutter (Channel stable, 3.7.7,on macOS 13.1 22C65 darwin-x64, locale zh-Hans-CN) [ ] Android toolchain - develop for Android devices (Android SDK version 33.0.0) [ ] Xcode - develop for iOS and macOS (Xcode 14.2) [ ] Chrome - develop for the web [ ] Android Studio (version 2024.1) …
WebFeb 7, 2024 · I am getting Future instance while getting sharedPreference value as follows. Future getCounterValue() async{ SharedPreferences preferences= await SharedPreferences.getInstance(); return preferences.getInt("counter") ; } Then I want to get int value from that Future instance. Please help thanks in advance. WebJan 4, 2024 · So your future builder is returning what you ask it to. The following piece of code defines the type of future clearly returning a Post object: final Future post; and you use it when creating your future builder: child: FutureBuilder( future: post,
WebApr 5, 2024 · I read somewhere that awaiting the future gets rid of the Future. But that doesn't work here. How do I fix this? Edit: It works if I simply pass the number of documents instead of length in List.generate(). But this won't work if there are changes to the collection. So how do I convert Future to int?
WebMar 13, 2024 · Flutter - Instance of future [duplicate] Ask Question Asked 1 year ago. Modified 1 year ago. Viewed 2k times 0 This question ... Flutter Future cant be assigned to parameter type string. 1. Understanding Future, await in Flutter. Hot Network Questions birchwood city parkWebAug 11, 2024 · 1 Answer. Sorted by: 2. Initialize your function as: Future> getEventsList () async {// your code} and use as: Map eventMap = await getEventsList (); Share. Improve this answer. birchwood cinema fort gratiot miWebJun 4, 2024 · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams birchwood cinemas showtimesWeb5 hours ago · I'm simply wishing to display the email of the authenticated user (from Amplify Auth) and using Riverpod. Code extracts below. In the file where I'm seeking to display the email: class MainDrawer extends ConsumerStatefulWidget { const MainDrawer ( {super.key}); @override ConsumerState createState () => … dallas starting lineup tonightWebApr 7, 2024 · which uses a float representing elapsed time in seconds to change the value of the colour displayed.. To use this shader, we need to use Flutter’s shader API, that allows us to set the values of uniforms in loaded GLSL programs. Fluttter’s API here is a bit spartan and provides only a setFloat() method which rather than using the names of uniforms, … birchwood city councilWebAug 22, 2024 · I am trying to return the length of items returned by a query using the .length.toString method and storing the String response in an variable. final String numberOfChildren = FirebaseFirestore.instance .collection("children") .where("parentUID", isEqualTo: uid) .snapshots() .length .toString(); birchwood clinicWebMar 10, 2024 · Flutter returns "Instance of Future" instead of expected value. 1. The argument type 'Future' can't be assigned to the parameter type 'int' 0. how to pass Future to super class. Hot Network Questions Group set of commands as atomic transactions (C++) dallas stem cell therapy clinics