doc(bloc_helper): update readme

packages/wyatt_bloc_helper/README.md

@@ -116,6 +116,19 @@ Widget onBuild(BuildContext context, CounterState state) {
 }
 ```
 
+If needed, you can wrap what depends on the state with the function `onWrap`.
+
+```dart
+@override
+Widget onWrap(BuildContext context, Widget child) {
+    return Scaffold(
+        appBar: AppBar(
+            title: const Text('Title'),
+        ),
+        body: child,
+    );
+```
+
 > Note: you can override `onBuild`, but also `onListen`, `shouldBuildWhen` and `shouldListenWhen` methods.
 
 ### Both BlocProvider and BlocConsumer

packages/wyatt_bloc_helper/lib/src/bloc_base/bloc_base_consumer_screen.dart

@@ -36,17 +36,20 @@ abstract class BlocBaseConsumerScreen<B extends BlocBase<S>, S extends Object>
   /// must return a widget.
   Widget onBuild(BuildContext context, S state);
 
+  /// The [onWrap] function which will be invoked on each widget build.
+  /// The [onWrap] takes the `BuildContext`
+  /// Used to wrap which depends on the state.
+  Widget onWrap(BuildContext context, Widget child) => child;
+
   /// Takes the `BuildContext` along with the `state`
   /// and is responsible for executing in response to `state` changes.
   void onListen(BuildContext context, S state) {}
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => BlocConsumer<B, S>(
-    return BlocConsumer<B, S>(
         listenWhen: shouldListenWhen,
         listener: onListen,
         buildWhen: shouldBuildWhen,
-      builder: onBuild,
+        builder: (context, state) => onWrap(context, onBuild(context, state)),
       );
-  }
 }

packages/wyatt_bloc_helper/lib/src/bloc_base/bloc_base_provider_screen.dart

@@ -28,10 +28,8 @@ abstract class BlocBaseProviderScreen<B extends BlocBase<S>, S extends Object>
   Widget buildChild(BuildContext context);
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => BlocProvider<B>(
-    return BlocProvider<B>(
         create: (_) => create(context),
         child: Builder(builder: buildChild),
       );
-  }
 }

packages/wyatt_bloc_helper/lib/src/bloc_base/bloc_base_screen.dart

@@ -26,10 +26,8 @@ abstract class BlocBaseScreen<B extends BlocBase<S>, S extends Object>
   B create(BuildContext context);
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context) => BlocProvider<B>(
-    return BlocProvider<B>(
         create: (_) => create(context),
         child: super.build(context),
       );
-  }
 }

packages/wyatt_bloc_helper/lib/src/mixins/bloc_base_provider_mixin.dart

@@ -21,8 +21,8 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 /// [Bloc] and [Cubit] widgets.
 mixin BlocBaseProviderMixin<B extends BlocBase<Object>> {
   /// Returns the [BlocBase] used by this [BlocBaseProviderMixin].
-  B bloc(BuildContext context) => BlocProvider.of<B>(context);
+  B bloc(BuildContext context) => context.read<B>();
 
   /// Returns the [BlocBase] used by this [BlocBaseProviderMixin].
-  R repo<R>(BuildContext context) => RepositoryProvider.of<R>(context);
+  R repo<R>(BuildContext context) => context.read<R>();
 }

packages/wyatt_bloc_helper/lib/src/mixins/bloc_provider_mixin.dart

@@ -20,7 +20,5 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 /// [Bloc] specific mixin that provides implementation
 /// of helper methods for events.
 mixin BlocProviderMixin<B extends Bloc<E, Object>, E> {
-  void add(BuildContext context, E event) {
+  void add(BuildContext context, E event) => context.read<B>().add(event);
-    BlocProvider.of<B>(context).add(event);
-  }
 }