Unfortunately, you can’t write if statement directly inside your widget properties as if you were writing in your method or function. But there are a few ways you can write a conditional statement inside your widget. You can use the ternary...

Dart

Flutter

How can a value be assigned to a variable of an extended class?

3 Mar 2024 by M-Badger

The issue with your code is that you're trying to assign a value to value1A directly in the class body of B. In Dart, you can’t assign values to inherited variables directly in the class body. You should do this inside a method or constructor. ...

Dart

Flutter

Flutter Getting Started: Tutorial 3 Navigation

12 Jul 2018 by ThatsAlok

Flutter Navigation, Let's move among pages

DART2 Prima Plus - Tutorial 4 - OOPS

31 Jul 2018 by ThatsAlok

Object Oriented Programming in DART

Is there any way to launch URL in Google chrome in flutter?

3 Jul 2020 by F-ES Sitecore

Not using that package, no. It's a bad idea anyway, it will annoy users if you try and override their preferences.

I want to be an expert programmer any help ?

24 Mar 2021 by Richard MacCutchan

If you are lost with Dart & Flutter, then maybe you need to start with something simpler. Try to get hold of a book on Python or C to get the fundamental ideas. Once you understand the concepts at the beginner level you can move on to the more...

Dart

Flutter

I want to be an expert programmer any help ?

24 Mar 2021 by OriginalGriff

You can't really separate "algorithms" from "coding", because they rely to a large extent on each other. In fact, there is a famous book about it: Algorithms Plus Data Structures Equals Programs (Prentice-Hall series in automatic computation):...

Dart

Flutter

I want to be an expert programmer any help ?

24 Mar 2021 by Patrice T

You have to know that you can do pretty much anything in any language, simply some languages are harder for beginners because there is more pitfalls to handle. You need to master a set of techniques that are the basis of the job and are not...

Dart

Flutter

Passing image from one screen to another - flutter

10 Aug 2022 by wseng

Something wrong on this line. child: Image1.file(File(image1.path)), child suppose return Widget, not Image1.file What is Image1 exactly? Is it the class created by you or it's an library?

Dart

Flutter

Failure [INSTALL_FAILED_CONTAINER_ERROR: failed to extract native libraries, res=-18] error launching application on SDK gphone64 arm64

21 Jan 2024 by Richard MacCutchan

Se https://stackoverflow.com/questions/77663954/flutter-failed-to-extract-native-libraries-res-18[^]

Dart

Flutter

What is the future of Dart

30 Jan 2014 by Hard Coder

Has Dart (dartlang.org) got any future as a way of builing web applications?

Dart

Flutter:- how to implement flood-fill algorithms

17 Oct 2018 by Rajesh aptil

I am working on one Paint application wherein I am implementing BucketFill functionality similar to MS paint application. I have Coded it Using a couple of FloodFill Algorithms but the Filling Color Process is taking too much Time ...I am not pretty sure reasons behind it may happen due to the...

Dart

Android

Flutter

How to retrieve the current language code in flutter

3 Feb 2021 by SuperMiQi

Hello Everyone, I would like to retrieve from my flutter/dart project, the current system lqnguage code, like. fr, en, ... What I have tried: I have tried the following: Locale myLocale = Localizations.localeOf(context); String lc = currentLanguageCode(myLocale); print ("Language code:...

Dart

Flutter

Sorting list of cards by latitude and longitude in flutter from firestore

24 Jan 2022 by JamesPiner

Trying to sort my list of cards by the latitude and longitude I have set as fields in Firestore to the user's location in Flutter (by their latitude and longitude). Does anyone know how to do this? My code below in the sort function only reversed...

Dart

Flutter

How to display the countdown time for all users

26 May 2020 by Member 14845028

I am building a flutter auction application, I am stuck at the countdown time of an auction product so I use firebase realtime database. I have to make sure all users see the countdown at the same time. Please help me whether it's just a keyword...

Wait for a future function to complete its executiom

22 Jun 2020 by Member 14869963

I am new to flutter and in my below code there is read data function is called at line 18(it performs Firebase Database operations) I want that the readData() function must complete its execution before going to the print statement(line 19) and...

Dart

Flutter

Wait for a future function to complete its executiom

22 Jun 2020 by Richard MacCutchan

Future readData() async { You have declared readData as an async activity, which means the the caller will not wait for it to finish. Remove the async keyword so that it runs synchronously.

Dart

Flutter

How to retrieve the current language code in flutter

4 Feb 2021 by Member 15063457

use didChangeDependencies method,the method is called after the initState is called and it gives you access to the context. Your code will look like this @override void didChangeDependencies() { Locale myLocale =...

Dart

Flutter

Learning flutter and dart

10 Mar 2021 by Richard MacCutchan

Same answer as your previous question: What cross platform framework to use to build a children's educational app for mobile?[^]. Unless you have some programming skills you are unlikely to make any progress. The first thing you need to do is to...

I want to be an expert programmer any help ?

24 Mar 2021 by Fix eg

i want to know what should i learn to be a real programmer. not just some one who made bad apps with mess code . what i need to learn before coding do i need to learn algorithms first or i need to learn coding with algorithms in the same time. ...

Dart

Flutter

How to implementing detail layouts in flutter

26 Mar 2021 by Fynn Pfingsten

Hello, how to impenting detail layout in Flutter? I have build code which looks like this: import 'package:flutter/material.dart'; import 'package:flutter_slidable/flutter_slidable.dart'; void main() => runApp(MyApp()); class MyApp extends...

Dart

Flutter

How can I solve FAILURE: build failed with an exception. In android studio 4.1.3?

27 Mar 2021 by Salma Mohamed 2021

I am trying to run the default Flutter program and I get the following error. FAILURE: Build failed with an exception. * What went wrong: Unable to start the daemon process. This problem might be caused by incorrect configuration of the...

Dart

Flutter

How to use KDE okular's document view widget in a flutter app?

3 May 2021 by Md. Mubin

I am writing an application in Flutter. Is there any way to use/import Okular's document view functionality as a widget? If yes, how? Okular - The Universal PDF Reader[^] What I have tried: I have no idea to start. I have searched Google for...

Dart

Flutter

How can I solve " source file not found" problem?

8 May 2021 by Md. Mubin

I am trying to call a native C function from Dart. I have made my C files, CMakeLists.txt and required Dart file. but when I run my code it shows: Execution failed for task ':flutter_plugin3:generateJsonModelDebug'. >...

Dart

Flutter

How to make " dart wrapper for mupdf " ?

11 May 2021 by Md. Mubin

Is it possible to create dart wrapper for MuPdf? If yes, how? Thanks in advance. What I have tried: I am a beginner in Flutter and Dart. I have no idea to start with.

Dart

Flutter

How to make " dart wrapper for mupdf " ?

11 May 2021 by Richard MacCutchan

See Flutter - Beautiful native apps in record time[^]

Dart

Flutter

How to connect to mongodb atlas from flutter

8 Jun 2021 by Asif Rehman

Db db = new Db("mongodb://localhost:27017/whatever"); In C# I can connect using mongodb+srv://:@cluster0.k6lme.mongodb.net/myFirstDatabase?retryWrites=true&w=majority But in flutter mongo_dart package. Connection string ...

Dart

Flutter

How to replace text with image(is it possible in flutter)

18 Jun 2021 by CSAAT ADMIN

i have saved bunch of emojis as images locally, i want replace a specific text on the message as this emoji image. What I have tried: var replaced = text.replaceAll(regExp, '*'); Instead of the asterisk mark can we replace this with actual...

Dart

Flutter

How to replace text with image(is it possible in flutter)

18 Jun 2021 by Richard MacCutchan

Yes, but only if the emoji is represented by a UTF sequence.

Dart

Flutter