31.50 Flutter Package: riverpod ProviderScope

20231027

The concept of a provider is the basis of how state can be managed in flutter. It provides a place to store (an encapsulation of) the current global variable values (called the state).

The basic idea is to wrap the entire app within a ProviderScope(), itself actually also a widget, so that widgets anywhere will be able to access the Providers.

void main() {
  runApp(
      ProviderScope(
          child: MyApp(),
      )
  );
}

The ProviderScope() widget stores the state of all the providers we create. It creates a ProviderContainer() instance. A ProviderContainer() is not often used directly in our code.

---

Your donation will support ongoing availability and give you access to the PDF version of this book. Desktop Survival Guides include Data Science, GNU/Linux, and MLHub. Books available on Amazon include Data Mining with Rattle and Essentials of Data Science. Popular open source software includes rattle, wajig, and mlhub. Hosted by Togaware, a pioneer of free and open source software since 1984. Copyright © 1995-2022 Graham.Williams@togaware.com Creative Commons Attribution-ShareAlike 4.0