ConnectionBloc class

A BLoC that exposes the Internet connection state to the UI.

ConnectionBloc automatically starts observing connection changes provided by ConnectionRepository so no action is required.

Designed to collaborate with ConnectionBuilder to render UI based on the Connection state and with ConnectionListener to perform one-time action when the connection state changes (navigation, displaying a SnackBar or a dialog).

By default it's initialized in the Connection.online state and emits distinct values whenever Connection state changes.

Constructors

ConnectionBloc(ConnectionRepository connectionRepository)

Properties

hashCode → int
The hash code for this object.
no setterinherited
isClosed → bool
Whether the bloc is closed.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
state → Connection
The current state.
no setterinherited
stream → Stream<Connection>
The current stream of states.
no setterinherited

Methods

addError(Object error, [StackTrace? stackTrace]) → void
Reports an error which triggers onError with an optional StackTrace.
inherited
close() → Future<void>
Closes the instance. This method should be called when the instance is no longer needed. Once close is called, the instance can no longer be used.
emit(Connection state) → void
Updates the state to the provided state. emit does nothing if the state being emitted is equal to the current state.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onChange(Change<Connection> change) → void
Called whenever a change occurs with the given change. A change occurs when a new state is emitted. onChange is called before the state of the cubit is updated. onChange is a great spot to add logging/analytics for a specific cubit.
inherited
onError(Object error, StackTrace stackTrace) → void
Called whenever an error occurs and notifies BlocObserver.onError.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited