Your discomfort really has reason – no event should be fired from build() method (build() could be fired as many times as Flutter framework needs) Our case is to fire initial event on Bloc creation Possibilities overview case with inserting Bloc with BlocProvider – this is preferred way create: callback is fired only once when … Read more
You need to use the context to call Provider.of() so you can add addPostFrameCallback() which is called after the first build, there you can use the context @override void initState() { super.initState(); WidgetsBinding.instance.addPostFrameCallback((timeStamp) { auth = Provider.of<Auth>(context, listen: false); }); }
First, to answer your question, you should know that State Management is not a term of Angular, and you don’t have to use it. State Management is a term that defines a way we can store data, modify it, and react to its changes. In our case, the libraries NGRX and NGXS are using a … Read more
Let’s take this in steps. What is ChangeNotifier? A class that extends ChangeNotifier can call notifyListeners() any time data in that class has been updated and you want to let a listener know about that update. This is often done in a view model to notify the UI to rebuild the layout based on the … Read more
State management is a critical thing to master when coming to Web world from a desktop application perspective. Session is used to store per-user information for the current Web session on the server. It supports using a database server as the back-end store. Cookie should be used to store per-user information for the current Web … Read more
I think you should read those two posts about Ngrx store: Angular Service Layers: Redux, RxJs and Ngrx Store – When to Use a Store And Why? Ngrx Store – An Architecture Guide If the first one explains the main issues solved by Ngrx Store, it also quote this statement from the React How-To “that … Read more
actions in Vuex are asynchronous. The only way to let the calling function (initiator of action) to know that an action is complete – is by returning a Promise and resolving it later. Here is an example: myAction returns a Promise, makes a http call and resolves or rejects the Promise later – all asynchronously … Read more