Category "flutter"

Update list of data using REST api

hi am a beginner with flutter and am trying to build a app and in that app i want to let the user update a data that he can accede from a list so when he press

Parsing Nested JSON leads to fromJson methods having a "The class 'Data' doesn't have an unnamed constructor." error

So I am trying to parse a Nested JSON from a GET request from VirusTotal but when I create the methods to parse the JSON for what I am looking for it is giving

Trying to build a future context but my build method has an error

I have this code and the problem is that: 'ProfileView.build' ('Future<Widget> Function(BuildContext)') isn't a valid override of 'StatelessWidget.build'

Unable to show the Y axis value in bar tooltip by default using fl_chart package

I am working on bar chart view using fl_chart package and i able to show the bar chart but unable to show the Y-axis value in each bar by default the way i expe

Grey screen in release mode (IOS - Flutter)

I am getting a grey screen on two pages in my app, I m facing this problem only in release mode when I installed it from TestFlight. there is no error in debug

Creating a list of objects from a nested JSON in Flutter

There's a URL address that I decoded to JSON, and there's a certain header (result) that I'm trying to convert to a list of objects (Book). When I print the con

How do I change flutter_ling version in flutter project?

Here I trying to add dependency geoflutterfire: ^3.0.3 After adding this line in pubspec.yml I presses pub get to get all package which I listed in it. But I g

Flutter 3 : Warning: Operand of null-aware operation '!' has type 'SchedulerBinding' which excludes null [duplicate]

I just upgraded to Flutter 3 and my flutter project console is full of warnings. Did anyone know how to fix these warnings or should I wait fo

minCompileSDK specified in dependency AAR metadata (androidx.window:window:1.0.0-beta04)

I'm currently using Android studio attempting to run an old Flutter project I made about a year and a half ago. When I attempt to run it I get the error: The mi

Flutter Notification not showing pop up

Notifications I send with Firebase when the app is open, in the background, and closed work fine. But I want to pop up, like this: My codes; local_notificatio

Dart/Flutter: Http request raises XMLHttpRequest error

I am trying to make an RSS reader with flutter but the program raises the XMLHttpRequest error. In my test I used web (Chrome) as my target platform. I already

Saving Icon to Hive DB in Flutter

Can anyone help me. How to Save Icon in hive database in flutter. And to read it. When I'm saving Icons it is giving error unhandled exception: hiveerror: canno

GetStream - Flutter - Connection already available for user

Error facing in Flutter GetStream SDK.. GetStream is chatting SDK in which I am using messaging feature. I am facing issue with creating connection with the use

setState() not updating color in listbuilder

I'm trying to change the background colour and text colour when user clicks on the container. I use setState to update the widget. It does update dateIndexSelec

Mimic ZeroMQ SUB-Socket (in a PUB/SUB system) with e.g. Socket/WebSocket in Flutter

Community, I want to use/subscribe a pub-socket on a server that implements ZeroMQ (https://zeromq.org/) My final product will be a flutter app. It must be runn

MissingPluginException(No implementation found for method getAll on channel plugins.flutter.io/shared_preferences) while getting FCM in background

I'm working on a Flutter app in which I'm using the shared_preferences: ^2.0.13 package. Flutter version : 2.10.1 (latest) gradle version: 6.7 Android gradle

Showing the data coming to the IP printer on the Screen-ESC Parse

Project: Flutter/Dart or with Java - Python Decompiler I want to show the data coming to an IP Printer in the kitchen on the screen. I have developed an App wit

Cast Complex JSON Dart

the dart code below allows you to decode a json that comes from a backend inside resultValue, I have the response of the rest call with the json shown below, wh

How to change dropdown default text color, when it is disabled?

When the dropdown is disabled it has this default black text color, which I want to change. There is an option to change the icon color but no option for text c

is it possible to get online incoming messages from users in telegram (not bot)?

I need to get all incoming messages from all possible social media and redirect them in one app, using this protocol https://pusher.com/docs/channels/library_au