LoadingBlocBuilder<B extends BlocBase<S>, S> constructor

const LoadingBlocBuilder<B extends BlocBase<S>, S>({ required LoadingStatus statusGetter(S), required Widget successBuilder(BuildContext, S), Widget initialBuilder(BuildContext, S)?, Widget failureBuilder(BuildContext, S)?, Widget loadingBuilder(BuildContext, S)?, Key? key, })

A special BlocBuilder for displaying the lifecycle of a state with a LoadingStatus.

Example:

LoadingBlocBuilder<TestingBloc, TestingState>(
  statusGetter: (state) => state.status,
  initialBuilder: (_, _state) => const Text('Initial'),
  loadingBuilder: (_, _state) => const Text('Loading'),
  successBuilder: (_, _state) => const Text('Success'),
  failureBuilder: (_, _state) => const Text('Failure'),
),

• The successBuilder is the only builder strictly required.
• If loadingBuilder is not supplied, a CircularProgressIndicator will be rendered.
• If initialBuilder is not supplied, a SizedBox will be rendered.
• If failureBuilder is not supplied, an Icon with Icons.error will be rendered.

Implementation

const LoadingBlocBuilder({
  required this.statusGetter,
  required this.successBuilder,
  this.initialBuilder,
  this.failureBuilder,
  this.loadingBuilder,
  Key? key,
}) : super(key: key);