Flutter bloc is one of the state management for Flutter applications. You can use it to handle all the possible states of your application in an easy way .
Read moreShould I use RxDart?
So to answer your question, you DON’T need RxDart, unless you want to implement the BLoC pattern on your own . If you use the Bloc library, you’re already using a RxDart free implementation of the BloC pattern.
Read moreWhich is best state management in Flutter?
Most Popular Packages for State Management in Flutter (2022)
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