Flutter Provider for Beginners | Simple Project for first step in provider

Опубликовано: 04 Июнь 2022
на канале: NasWithFlutter

240

Provider : https://pub.dev/packages/provider

Why Use Provider?

As you may have seen in previous tutorials, I have used setState() multiple times. Now invoking setState() will notify the framework that the internal state of this object has changed, which basically means that a rebuild will happen with the updated values. The problem with setState() is that it will issue a build for the parent widget and all children widget, no matter if the children widgets are StatefulWidgets or StatelessWidgets. The other problem with setState() is that it does not help in seperation of concern which basically means seperation your code into different layers(presentation, domain, data).

To solve the above issues, there are many different state management packages one of them is provider which was created by Remi Rousselet. In simple terms, provider is a wrapper around Inherited Widgets, which was explained in the previous tutorial Using Inherited Widgets In Flutter.

For an example about provider, you can check the following application, Covid Tracker. In the Covid Tracker application I use provider for state management and MVVM architecture for the whole application.

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