overrideWithProvider method
Overrides the behavior of a family for a part of the application.
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 overrideWithProvider(
Created Function(Ref ref, Param param) builderOverride,
) {
return FamilyOverride(
this,
(param) => create(param as Param, builderOverride, null),
);
}