overrideWithValue method

Override overrideWithValue(
  1. Notifier value
)
inherited

Overrides the behavior of a provider with a value.

Some common use-cases are:

  • testing, by replacing a service with a fake implementation, or to reach a very specific state easily.
  • multiple environments, by changing the implementation of a class based on the platform or other parameters.

This function should be used in combination with ProviderScope.overrides or ProviderContainer.overrides:

final myService = Provider((ref) => MyService());

runApp(
  ProviderScope(
    overrides: [
      myService.overrideWithProvider(
        // Replace the implementation of MyService with a fake implementation
        Provider((ref) => MyFakeService())
      ),
    ],
    child: MyApp(),
  ),
);

Implementation

Override overrideWithValue(Notifier value) {
  return ProviderOverride(
    ValueProvider<Object?, Notifier>((ref) => value, value),
    notifier,
  );
}