Issue I am trying to learn how to use flutter_riverpod for state management, I am having trouble understanding what the "need" for ChangeNotifierProvider is , same thing for StateNotifierProvider. Let’s take the following ChangeNotifier for example : class CounterNotifier extends
Continue readingTag: flutter-change-notifier
MultiProvider with AbstractClass notifier
Issue I am trying to create a single interface for Google and Facebook login, my SignInProvider looks like: abstract class SignInProvider with ChangeNotifier { bool get isSigningIn; set isSigningIn(bool isSigningIn); void login(); void logout(); } class FacebookSignInProvider with ChangeNotifier implements
Continue readingFlutter: ListenableBuilder is rebuilding the child widget
Issue The child widget of the ListenableBuilder is rebuilt even though it claims to preserve the child widget from re-building. In the example below counterNotifier is an instance of ChangeNotifier. I believe there is no need to see its implementation,
Continue readingFlutter: Prevent ChangeNotifier's notifyListeners from preventing the animation of the sending button whose state depends on the ChangeNotifier?
Issue My actual app is a lot more complex but I have been able to simplify it down to this example which demonstrates the issue. I have 2 buttons which are supposed to reflect the same data. In this example,
Continue readingFlutter: Prevent ChangeNotifier's notifyListeners from preventing the animation of the sending button whose state depends on the ChangeNotifier?
Issue My actual app is a lot more complex but I have been able to simplify it down to this example which demonstrates the issue. I have 2 buttons which are supposed to reflect the same data. In this example,
Continue readingHow to use method from one Change notifier class in another change notifier class provider
Issue I want to use fetchdata() in another provider method and initialise variables. Solution you can use MultiProvider with ChangeNotifierProxyProvider Action Class ( FirstModel ) class FirstModel with ChangeNotifier { List<Strings> _names = ["Sat", "Sat2", "Sat3"]; List<Strings> get names {
Continue readingIs it necessary to use StateNotifier even if there is only one value and no method?
Issue If there is only one value and no method, do we still need to use StateNotifier as follows? Or is there a simpler mechanism? Since this value is rewritten and referenced from the outside, the corresponding function must be
Continue readingIf another variable in ChangeNotifier is changed, will the Consumer's model be updated?
Issue If the following setIntVal is called and notifyListeners(); is executed, is the Text redrawn? intVal is changed but strVal is not. Similarly, what happens when StateNotifier is used? class DummyManager with ChangeNotifier { DummyManager(); int intVal = 0; String
Continue readingChangeNotifier changing but widget not updating with gestureDetector
Issue I have this simple changeNotifierProvider here it is import ‘package:flutter/material.dart’; class CreatePetProvider extends ChangeNotifier { String? _gender = ‘Male’; get gender => _gender; set changeGender(String gender){ _gender = gender; // print(this.gender); notifyListeners(); } } here is in main.dart return
Continue readinghow to update variable using changeNotifierProxyProvider?
Issue I am trying to update my header when I retry my API upon 401 response I am able to retry but my header is taking the previous value but not updated value following is my changeNotifierProxyProvider ChangeNotifierProxyProvider<Auth, ApiCalls>( create:
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