Category "dart"

Is it possible to develop flutter windows desktop with fcm push notification?

I was thinking to developing a windows desktop application with dart and flutter but i don't know how can i integrate Firebase cloud messaging with it. Any sugg

i get "Error running 'main.dart': Entrypoint isn't within a Flutter pub root" every time i try to run my app

i'm working on app using flutter and android studio this is the error I get every time i try to run my app i tired running other projects and they ran completel

Put JSON Data in Flutter Stacked Chart

I have try to put my JSON data in flutter Stacked Chart. I already work on simple charts using JSON Data like bar, column, pie, Doughnut charts etc. I have refe

Future Call return API key invalid error UNAUTHORIZED

I'm trying to access an api endpoint using a Future and it constantly returns {"code":"UNAUTHORIZED","message":"Invalid API Key","timestamp":"2022-03-19T16:57:

Use Firebase Cloud Messaging in a Flutter Windows app

I have checked both firebase_dart and flutterfire packages but none of them provide a firebase FirebaseMessaging class to use. Is there any way I can use Cloud

Adding shadow text form field

I want to achieve this Here is my code so far, Padding( padding: EdgeInsets.fromLTRB(5, 10, 5, 10), child: Container( decoration: BoxDecoration(

json_serializable not generating code for final fields and getters

This is my class: @JsonSerializable() class Foo { final int a = 0; int get b => 42; } The generated code doesn't include any of the a or b field: Foo _$

How to deserialize generic JSON with List type in Dart

I want to deserialize some JSON data that contains a list of article information { "data": [ { "id": 1, "title": "First arti

Range Error(index): invalid value: valid value range is empty

im trying to set initial value for 'title' but it keeps showing me the error: range error (index): invalid value: valid value range is empty class _ProductCreat

Check if item is not in a Firebase document

I have a field in my Firestore documents that happens to be an array of user IDs, this field is called "tempID", I want to run a query that return all documents

Is it possible to iterate a list with index values in the Widget tree?

I have a List which is a list of image URLs, which I will then use to construct a series of Image widgets as part of a gallery. The images will be aligned next

list_remove_unrelated_type - dart

I have a function like this: void function(List<int> listToRemove) { final List<int> list = [1, 2, 3, 4, 5]; list.remove(listToRemove); } and i

is this the right way to implement a custom architecture in flutter app using riverpod?

I am creating an App using riverpod, hooks and freezed. My aim is to remove the entire logic out of the widget tree. This article by @ttlg inspired me. In my a

Flutter/Firebase: build page depending on database

I'm trying to build a simple card game app to play online with friends using Flutter and Firebase. The way it works (for now), is we have lobbies which players

Flutter File Picker package is not working at all

I followed this tutorial online: https://www.youtube.com/watch?v=LlO5jydXws0 For some reason when I press the button to open a file, it does not work or do anyt

Dart/Flutter remove boilerplate parameters in named constructor to reduce code size

I have a class with multiple named constructors. All of them have a set of defined parameters and for now I have to rewrite them all over again when I add a new

Can someone explain to me what is the details of line 5 return numberList[index] + sum(numberList, index - 1);

Can someone explain the syntax process? How line 5 will be implemented and what is the sequence for these three elements and what is the value each time in the

Dart snapshot generator failed with exit code -9

Debugging mode working well but when I tried to run it as release mode or building apk it's not working. Tried all things that I could but it's not working (Cre

"ChromeProxyService: Failed to evaluate expression" error

I get this error when I want to start my project with chrome device via flutter. The error is as follows; And vs code redirects to this line ; Because of thes

Stop flutter from chaing fontSize depending on phone font

I'm building an app there is one problem. The font is causing overflow when I set my phone font to a bigger size. I tried using this : class SizeConfig {