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Flutter App Development with RxDart and the BLoC Pattern
The classic pattern of Flutter, BLoC
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Flutter is a popular framework for building cross-platform mobile applications. However, as apps become more complex, managing state and handling asynchronous events can become challenging. Also, relying on setState too much might make our code harder to read. This is where RxDart and the BLoC pattern come in to save us!
RxDart and BLoC Pattern: What and Why?
RxDart is an extension of the popular ReactiveX (Rx) library for Dart, which provides powerful tools for working with asynchronous data streams. We can use this package by going to pub.dev and installing it.
The BLoC pattern, on the other hand, is a design pattern that helps to separate the business logic of an app from its presentation. This pattern is probably the most commonly used pattern among Flutter developers. I also implemented BLoC on my published app before and found it really useful for development.
When used together, RxDart and the BLoC pattern can greatly simplify the development of Flutter apps. With RxDart, we can easily manipulate streams of data, while the BLoC pattern provides a clear separation of concerns, making it easier to manage the complexity of our app.
Implementation
Let’s jump right into implementation! This is how we might implement a simple home screen that displays a list of data using Flutter, RxDart, and the BLoC pattern:
First, we would create a BLoC (business logic component) for handling the home logic. This component would contain an RxDart Subject, which is a kind of stream controller, to handle the stream of data.
