Flutter/Riverpod design question - how to pass riverpod 'final' function address to a complex UI widget?

[davoutuk]

I have a Flutter UI that includes a very complex custom list/grid widget that I want to use in multiple different app situations.

For example, I have four different pages where I want to use this complex UI widget. Each of these four pages (e.g. Page1, Page2 etc) has their own RiverPod StateNotifierProvider (e.g. PageProvider1, PageProvider2 etc)

Inside the complex custom list/grid I want to:

• Retrieve data from the provider to help minimize redrawing/repainting
• Call provider notifier methods as responses to user interactions.

But the problem is how do I pass a reference to the custom list/grid about what RiverPod provider to call?

What I am trying to avoid is a set of 'switch' statements in the UI widget, like:

enum ProviderInUse {
   provider1,
   provider2,
   provider3,
   provider4
}

class CustomGridListWidget {

   ProviderInUse  _providerInUse;

   DataValue getData(int x, int y) {
      switch (_providerInUse) {
         case ProviderInUse.provider1:
            return ref.watch(Page1Provider.select.....);
         case ProviderInUse.provider2:
            return ref.watch(Page2Provider.select.....);
      }
   }

}

Any suggestions?

[Maldus512]

Instead of ProviderInUse you could pass a ProviderListenable parameter to your widget and watch that.
This only allows you to access the provider part, not eventual notifiers; those would have to be passed separately.

class CustomGridListWidget {

   ProviderListenable<MyData> _providerInUse;

   DataValue getData(int x, int y) {
         return ref.watch(_providerInUse.select.....);
   }
}