FLUTTER PROVIDER RESET STATE UPDATE

ValueNotifier is native to Flutter itself, it provides individual element reactivity. ValueNotifier is a special type of class that extends a ChangeNotifier. If you are interested to know more about State you can check my post on State Management in Flutter. It is used in cases where we want to implement selective rebuilding, which is the case in most application designs.

FLUTTER PROVIDER RESET STATE UPDATE

That’s why today we are going to look at another method to update state using ValueNotifier. It rebuilds the whole widget again, which can be expensive and time taking.Tight coupling between frontend and backend.

If not used properly, there can be some issues with setState: While using setState is appropriate in most situations. By default the program follows its lifecycle but when setState is invoked the program re-runs the build method and rebuilds the widget tree. Flutter maintains the current state of the app at every given time, so anytime we update the User Interface we say that we are updating the state.įlutter has its own state management system, the popular setState function in Stateful Widget that executes the build method whenever called. We need to have an understanding of how the widgets are rebuilt when calling. In this post, we will dive deep into ValueNotifier along with its corresponding topics.įirstly, to understand the need for a ValueNotifier we need to understand the underlying architecture of Flutter. Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.

Flutter is one of the most popular cross-platform frameworks for mobile apps development in 2020.

Flutter provider reset state