Weblistener is only called once for each state change (NOT including the initial state) unlike builder in BlocBuilder and is a void function. Every time when a new state is emitted by the Cubit it is compared with the previous one, and if they are "DIFFERENT", the listener function is triggered. In you situation, you are using Equatable with only ... WebAn optional listenWhen can be implemented for more granular control over when listener is called. listenWhen will be invoked on each bloc state change. listenWhen takes the …
dart - Multiple listeners of a Flutter Bloc dependency - receiving ...
WebMay 11, 2024 · Implementation: F irst, we have to add dependency in pubspec.ymal file for getting all the properties of the bloc by which we can easily use it for state management.. dependencies: flutter: sdk: flutter cupertino_icons: ^1.0.2 rxdart: ^0.27.3 flutter_bloc: ^8.0.1 We use two dependencies flutter_bloc and rxdart. RxDart extends the capabilities of … WebIn this way BLoC consumer thinks that the two states are equal and do not triggers the listener function again. If you check your verifyCode () function the only changing parameter is status. In order to fix that add the status property to the props list in your … facts elvis presley
flutter_bloc Flutter Package
WebFeb 18, 2024 · So in this example, we have passed a text from the bloc in the UpdateTextStateand used it to so on the UI, this state is emitted whenever the “Tap me!!” button is tapped. listener — So whenever a state is emitted the listener also gets invoked, but unlike builder, it doesn’t return any widget. It gets called once per state change, that ... WebJun 20, 2024 · Hi, I'm having an issue where my BlocListener is not triggering, I don't know why. Maybe I did something wrong when yielding the state or I am passing a wrong … WebJul 6, 2024 · The listener is called only one time, and this is when a rebuild process is executed. listenWhen (Optional): This is flag (true/false) indicates if the listener method should be called or not, keep in mind that this is … facts engineering fl