The Obx Widget
Explore how to use the Obx widget in Flutter GetX to listen and react to state changes efficiently. Learn initializing controllers with dependency injection, managing multiple controllers in a single Obx, and creating reactive UIs that rebuild only on value changes. Apply these concepts to build streamlined and performant Flutter applications.
We'll cover the following...
Overview
Obx is an extremely simple widget with a single purpose—to listen to changes in the controller. We don’t need to provide the controller type or initialize the controller. It even has the ability to listen to multiple controllers from a single widget.
However, this simplicity comes at a price. We cannot initialize or attach controllers to Obx. It does not provide any life cycle controls and is not responsible for disposing of the controllers.
Initializing controller
So, how do we initialize the controllers? By using dependency injection! We can use any of the dependency injection techniques provided by GetX to use ...