I'm using an AppValueNotifier to create a value called showStreamDialogNotifier that will change depending on some stream. When this value becomes true, I want to show a dialog box on my Login form. class AppValueNotifier{ ValueNotifier showStreamDialogNotifier = ValueNotifier<bool>(false); void…
I'm trying to achieve three radio buttons or outlined buttons for buying plans from my app that's what I want to make and that's the code that I tried before but It didn't work very well as you can see…
I need to retrieve the document id of a newly created Firebase document but I am having trouble doing this. I send the client data in a notifier provider to a save Firestore save function. The document is created and…
Earlier, I was learning SOLID principles and was trying to employ these principles to get much cleaner and maintainable code. I'm working on a social app using flutter, of course there are posts to get published. suppose there are two…
What's the difference between FilledButton.tonalIcon and FilledButton.icon ? I checked their constructor, both is same.
I'm playing with riverpod in flutter, and I got this example AsyncError(:final error) => Text('Error: $error'), It works, but I'm trying to understand what does :final error mean? If I remove the : it throws an error Object patterns can…
When I click on add to cart, I get an error after debugging and running the code. price is defined in the file named product.dart like final double price and in products.dart for 4 products I have separate pricing 49.99,…
I am trying to build an app that can find specific ingredients in a food item's list of ingredients. I have a list of food ingredients called filtered results filtered results: [{key: enriched corn meal corn meal, vegetable oil (corn,…
I am trying to learn Dart language along with flutter. I have come across the following piece of code (taken from here: https://github.com/ppicas/flutter-android-background/blob/master/lib/counter_service.dart) : import 'package:flutter/foundation.dart'; import 'counter.dart'; class CounterService { factory CounterService.instance() => _instance; CounterService._internal(); <<====================== Why is this…
I have an app that I want to disable the button after 8 hours of use per day, being able to use it as many times as I want within 8 hours of the day. Below is part of the…