AsyncValue<T> class sealed

A sealed class representing the state of an asynchronous operation (such as a Future or Stream).

It can be in one of three states:

Implementers

Properties

data → T?: Returns the value if the state is AsyncData, otherwise null.
no setter
hasData → bool: Alias for hasValue.
no setter
hasError → bool: Returns true if the state is AsyncError.
no setter
hashCode → int: The hash code for this object.
no setterinherited
hasValue → bool: Returns true if the state is AsyncData.
no setter
isLoading → bool: Returns true if the state is AsyncLoading.
no setter
isRefreshing → bool: Whether a loading state is refreshing previously loaded data.
no setter
requireValue → T: Returns the value if the state is AsyncData, otherwise throws a StateError.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
valueOrNull → T?: Returns the value if the state is AsyncData, otherwise null.
no setter

map<R>({required R data(AsyncData<T> data), required R loading(AsyncLoading<T> loading), required R error(AsyncError<T> error)}) → R: Transforms the state to another type by matching the wrapper class.
maybeMap<R>({R data(AsyncData<T> data)?, R loading(AsyncLoading<T> loading)?, R error(AsyncError<T> error)?, required R orElse()}) → R: Transforms the state to another type by matching the wrapper class, falling back to orElse if unmatched.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
toString() → String: A string representation of this object.
inherited
when<R>({required R data(T data), required R loading(), required R error(Object error, StackTrace stackTrace)}) → R: Pattern matching method to execute different callbacks depending on the current state.