Riverpod : Alternate way of overriding initState inside ConsumerWidget

Question

What is the solution of initializing things inside consumerWidget as because the initState method is not overridable here?

Answer 1

Updated

Riverpod v1.0.0

You can use ConsumerStatefulWidget and ConsumerState

final helloWorldProvider = Provider((_) => 'Hello world');

class RiverpodExample extends ConsumerStatefulWidget {
  @override
 _RiverpodExampleState createState() => _RiverpodExampleState();
}

class _RiverpodExampleState extends ConsumerState<Example> {

  @override
  void initState() {
    super.initState();

    final value = ref.read(helloWorldProvider);

  }

  @override
  Widget build(BuildContext context) {
    final value = ref.watch(helloWorldProvider);

    return Text(value); // Hello world
  }
}

---

Up to Riverpod v0.14.0+3

You have to use StatefulWidget and return Consumer as a root widget from the build method.

Consumer

Consumer can be used to listen to providers inside a StatefulWidget or to rebuild as few widgets as possible when a provider updates.

final helloWorldProvider = Provider((_) => 'Hello world');

class RiverpodExample extends StatefulWidget {
  @override
  _RiverpodExampleState createState() => _RiverpodExampleState();
}

class _RiverpodExampleState extends State<Example> {

  @override
  void initState() {
    super.initState();

  }

  @override
  Widget build(BuildContext context) {
    return Consumer(
      builder: (context, watch, child) {
        final value = watch(helloWorldProvider);
        return Text(value); // Hello world
      },
    );
  }
}