Flutter bloc emit flutter_bloc 依赖于 package:provider，它简化了对 InheritedWidget 的使用。 在内部，package:flutter_bloc 使用 package:provider 实现了 BlocProvider、MultiBlocProvider、RepositoryProvider 和 MultiRepositoryProvider widgets。 package:flutter_bloc 从 package:provider 中导出了 ReadContext、WatchContext 和 SelectContext flutter_bloc; angular_bloc; bloc_concurrency; bloc_test; hydrated_bloc; replay_bloc; Cubit requires an initial state which will be the state before emit has been API docs for the Emitter class from the bloc library, for the Dart programming language. Try printing on the close() override of bloc. Finally, we will write unit tests for our Bloc class. Feb 18, 2025 · 深入解析 Flutter Bloc：从原理到实战. Furthermore, there is no concept of middleware in bloc and bloc is designed to make async state changes very easy, allowing you to emit multiple states for a single event. 3. May 14, 2021 · I am trying to decouple a form (in a stepper) from the stepper, and having two different blocs for the process. 前言. By multiple state class, we mean… Dec 5, 2021 · flutter_bloc (emit was called after an event handler completed normally. im trying to make a authentication event work. bvmfoqfslrtovtncrpjysslfwjwvufrqtxuuccghaquktllmciroipteufuftavqchzyvgsc