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58fec4bf48
@ -116,19 +116,6 @@ Widget onBuild(BuildContext context, CounterState state) {
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}
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```
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If needed, you can wrap what depends on the state with the function `onWrap`.
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```dart
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@override
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Widget onWrap(BuildContext context, Widget child) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Title'),
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),
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body: child,
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);
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```
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> Note: you can override `onBuild`, but also `onListen`, `shouldBuildWhen` and `shouldListenWhen` methods.
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### Both BlocProvider and BlocConsumer
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@ -36,20 +36,17 @@ abstract class BlocBaseConsumerScreen<B extends BlocBase<S>, S extends Object>
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/// must return a widget.
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Widget onBuild(BuildContext context, S state);
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/// The [onWrap] function which will be invoked on each widget build.
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/// The [onWrap] takes the `BuildContext`
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/// Used to wrap which depends on the state.
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Widget onWrap(BuildContext context, Widget child) => child;
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/// Takes the `BuildContext` along with the `state`
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/// and is responsible for executing in response to `state` changes.
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void onListen(BuildContext context, S state) {}
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@override
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Widget build(BuildContext context) => BlocConsumer<B, S>(
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Widget build(BuildContext context) {
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return BlocConsumer<B, S>(
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listenWhen: shouldListenWhen,
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listener: onListen,
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buildWhen: shouldBuildWhen,
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builder: (context, state) => onWrap(context, onBuild(context, state)),
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builder: onBuild,
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);
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}
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}
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@ -28,8 +28,10 @@ abstract class BlocBaseProviderScreen<B extends BlocBase<S>, S extends Object>
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Widget buildChild(BuildContext context);
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@override
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Widget build(BuildContext context) => BlocProvider<B>(
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Widget build(BuildContext context) {
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return BlocProvider<B>(
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create: (_) => create(context),
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child: Builder(builder: buildChild),
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);
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}
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}
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@ -26,8 +26,10 @@ abstract class BlocBaseScreen<B extends BlocBase<S>, S extends Object>
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B create(BuildContext context);
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@override
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Widget build(BuildContext context) => BlocProvider<B>(
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Widget build(BuildContext context) {
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return BlocProvider<B>(
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create: (_) => create(context),
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child: super.build(context),
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);
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}
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}
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@ -21,8 +21,8 @@ import 'package:flutter_bloc/flutter_bloc.dart';
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/// [Bloc] and [Cubit] widgets.
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mixin BlocBaseProviderMixin<B extends BlocBase<Object>> {
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/// Returns the [BlocBase] used by this [BlocBaseProviderMixin].
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B bloc(BuildContext context) => context.read<B>();
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B bloc(BuildContext context) => BlocProvider.of<B>(context);
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/// Returns the [BlocBase] used by this [BlocBaseProviderMixin].
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R repo<R>(BuildContext context) => context.read<R>();
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R repo<R>(BuildContext context) => RepositoryProvider.of<R>(context);
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}
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@ -20,5 +20,7 @@ import 'package:flutter_bloc/flutter_bloc.dart';
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/// [Bloc] specific mixin that provides implementation
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/// of helper methods for events.
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mixin BlocProviderMixin<B extends Bloc<E, Object>, E> {
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void add(BuildContext context, E event) => context.read<B>().add(event);
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void add(BuildContext context, E event) {
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BlocProvider.of<B>(context).add(event);
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}
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}
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