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Yadnesh Teli
Yadnesh Teli

Posted on AI-assisted

GetX in Flutter — Part 1: State Management and Navigation

#flutter #beginners #dart #mobile

Series 3 — Part 1 of 2

GetX in Flutter — Part 1: State Management and Navigation

Series: Exploring Flutter State Management Alternatives

After spending weeks with Riverpod, my mentor asked me to explore GetX — a framework that promises to handle state management, dependency injection, and navigation all in one package. I was sceptical. Riverpod had given me clean, testable ViewModels and explicit dependency graphs. GetX felt opinionated in a different way.

I spent a few days reading the GetX docs, watching video walkthroughs, and then building a basic app from scratch. Here is what I found.

What GetX gives you

GetX bundles three things that Riverpod keeps separate:

  1. State management: Uses GetxController instead of AsyncNotifier.
  2. Navigation: Removes the need for a BuildContext — Get.to() and Get.back() work from anywhere.
  3. Dependency injection: Done through Get.put() and Get.find() rather than Riverpod providers.

Building a basic GetX app

I created a fresh Flutter project and built a minimal app with a list screen and a detail screen. The GetxController looked clean at first:

class ProductController extends GetxController {
  final products = <Product>[].obs;

  void loadProducts() => products.assignAll(fetchFromApi());
}
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The .obs suffix makes the list reactive. Widgets that use Obx(() => ...) rebuild when the value changes. It feels fast to write, and the boilerplate is noticeably less than a Riverpod AsyncNotifier setup.

GetX navigation

Navigation with GetX is genuinely convenient. You do not need a BuildContext to push a route:

// Navigating without BuildContext
Get.to(() => const DetailScreen());
Get.back();
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Get.to() and Get.back() work from inside a controller, which is useful when you want to navigate after an async operation completes.

The trade-off is that this convenience comes at the cost of testability. Routes become global state. Testing navigation logic requires more mocking and setup than with go_router.

Implementing MVVM with GetX

I structured the GetX app using MVVM conventions — controllers as ViewModels, repositories as the data layer, and views as pure widget trees. GetX does not enforce this structure, but it works well when you apply it deliberately.

What I learned

  • Less boilerplate: GetX reduces boilerplate significantly compared to Riverpod for simple state cases.
  • Context-free tradeoffs: The context-free navigation is convenient but reduces modular testability.
  • Architecture is discipline: GetX can work well with MVVM if you apply the pattern yourself — it does not enforce it.
  • Safety vs Speed: For complex apps with lots of async state, Riverpod's AsyncNotifier is more explicit and safer.

Next: Part 2 — GetX Dependency Injection and Comparing with Riverpod

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