python (12.9k questions)

javascript (9.2k questions)

reactjs (4.7k questions)

java (4.2k questions)

java (4.2k questions)

c# (3.5k questions)

c# (3.5k questions)

html (3.3k questions)

Questions - riverpod

Flutter : Hot reload / Hot restart showing white screen with debug banner?

In my flutter app , when I try to hot reload or hot restart , after process complete , the reloaded screen shows for a second and then went whole white only the Debug banner in top right side showing ...
test-img

RagAnt

flutter

dart

flutter-provider

flutter-navigation

riverpod

Votes: 0

Answers: 3

Latest Answer

Make sure you don't initiate your router inside of the build function. @override Widget build(BuildContext context) { //remove this from here //you can just declare as a top level variable final...
test-img

Abdulmumin Yahaya

Flutter: In RiverPod , how to alter state model's variables directly?

I am currently learning River Pod and also new to flutter. When setting new state in StateNotifer , I need to create a new model and replace the state But directly changing is not working class Counte...
test-img

RagAnt

flutter

dart

flutter-provider

riverpod

flutter-state

Votes: 0

Answers: 1

Latest Answer

You have to always reassign the state in StateNotifier for Consumers to see the changes hence, state.var1 = new_value1; can't work with StateNotifier If You're very keen about that syntax, use ChangeN...
test-img

Josteve

Initializing StateNotifier Provider to return list of products to a feeds screen

I have tried several suggestions and rewritten my code to get past errors. But now only a blank screen (no list of products) being returned on navigation. Here are screenshots of the 2 critical screen...
test-img

Obisi7

state

e-commerce

riverpod

Votes: 0

Answers: 2

Latest Answer

The goal of a StateNotifier is to hold a state, so in your super constructor you are using a empty array if state (optional positional parameter of ProductNotifier) is null. You are not assigning your...
test-img

Juan Carlos Ramón Condezo

flutter ecommerce products not retrieving

I keep getting error of "null check applied to a null value" at runtime. When I delete the ! symbol, dart recommends adding this or ? back to remove code error during dev. I am suspecting th...
test-img

Obisi7

e-commerce

nullable

riverpod

Votes: 0

Answers: 1

Latest Answer

Since products is already known, AsyncValue passed to the super constructor should be AsyncValue.data(products) Like so: ProductNotifier(this._read): super(AsyncValue.data(products));
test-img

Josteve

Posts

Questions

Blogs

Jobs