Questions tagged [flutter-change-notifier]
189 questions
2
votes
1 answer
How to switch between Auth screen and Home screen based on bool value?
I want to switch between the login screen and Home screen based on bool value(user.status) from the model class below
class User extends ChangeNotifier {
int phoneNumber;
bool status = false;
notifyListeners();
}
The bool User.status value is…
2
votes
1 answer
How to display a dialog from ChangeNotifier model
In my project, when ChangeNotifier class receives a status it sets up a boolean and calls notifyListeners(). In my main build() function, I then check the pending-boolean and display the dialog accordingly - but I am only able to display the dialog…
fideldonson
- 581
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2
votes
2 answers
An annoying problem with TabBar and ChangeNotifierProvider
Imagine a scenario like this.
E.g: A whole bunch of movies with various genres.
The idea is a TabBar and in each Tab contains a list movie of a genre.
In this case, a ChangeNotifier e.g MoviesBloc will pretty much suit the need, ChangeNotifier…
Joe Ng
- 91
- 2
- 7
1
vote
2 answers
Why is my UI not updating with the after getting notified by change notifier
I am working on an API in Flutter after spending a long time I managed to get the data I am using a provider and change notifier to update my UI. According to the data that I get, but the UI is not updating
This is my API provider:
class ApiProvider…
Abhiram
- 145
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- 1
- 13
1
vote
1 answer
Does Flutter have a Listener that provides the new value directly to its listeners?
I know there are ValueNotifier, ChangeNotifier and of course Stream, but I can't find any class that can provide the new value directly to the listeners. I could of course create my own, but I'm wondering if there is such a class "built in" to…
Magnus
- 17,157
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1
vote
1 answer
Why do we need ChangeNotifierProvider instead of just using a ChangeNotifier?
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…
Sahar_Sarraj
- 28
- 5
1
vote
0 answers
Flutter provider advice
I feel like this is a stupid question, but anyways...
I want to improve the naming structure inside my provider by grouping functions together (and if possible, relocate the groups to separate files), so I can access them like this (and I want all…
0921dma
- 13
- 3
1
vote
0 answers
Implemention of Dark/light theme mode in flutter
i am trying to create a way to start my app with system theme and then giving user a switch to choose between light mode and dark mode
in my main.dart file
import 'package:edubro/pages/Attendance/show_attendance.dart';
import…
Abhishek kushwaha
- 11
- 3
1
vote
1 answer
List of interactive items using nested StateNotifiers
Do you think it's okay to have a list of StateNotifiers inside the State of other StateNotifier?
For example like this:
class ListOfItems extends StateNotifier {
void doSomethingWithList() {
// update state of list -> rebuild…
Igor' Leonidov
- 11
- 2
1
vote
1 answer
ChangeNotifierProvider not updating the listener
I have simplified my real app into the following code below to show the problem. I am basically trying to show the scroll offset of a list view on another widget (the real app is a lot more complex where the widget does other stuff with that…
sudoExclaimationExclaimation
- 7,992
- 10
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- 105
1
vote
0 answers
using ChangeNotifier to add items into empty list
I already have data stored on firestore , but now i'd like to add this data into an empty list using ChangeNotifier , similar to this example -https://docs.flutter.dev/development/data-and-backend/state-mgmt/simple .
so below i'd like to add data…
hayek
- 33
- 4
1
vote
0 answers
Prevent BottomBar from rebuilding the entire application in Flutter
I have an app with a bottom bar that is used to navigate between the three main tabs of the app using AutoTabsRouter.pageView(). The bottom bar is only visible in some parts of the app, so I need a function that controls its animation. Also…
Angela Riley
- 61
- 5
1
vote
0 answers
How to combine StateNotifierProvider and FutureProvider in Flutter? | Riverpod
Basically I am trying to combine a FutureProvider and a StateNotifierProvider into one single Provider with Riverpod. I know that there is already a question for a similar thing, but this is a bit more complex.
The scenario: The user is able to set…
Florian Leeser
- 590
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1
vote
2 answers
Multiple ChangeNotifierProxyProviders to feed updates into ChangeNotifier
I have three ChangeNotifierProvider providers, let's call them A, B and C.
What I need is for changes in providers A and B to update provider C, but the code below isn't working.
MultiProvider(
providers: [
ChangeNotifierProvider(create:…
Vadim
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1
vote
1 answer
How can I get my flutter video player to work for Chrome Web, correctly
I am getting videoplayer overflow. How do I resize my video player, so it correctly works. Error message "A RenderFlex overflowed by 93 pixels on the right" during window resizing.
import 'package:flutter/material.dart';
import…
Golden Lion
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