whenOrNull<R> method
R?
whenOrNull<R>({
- bool skipLoadingOnReload = false,
- bool skipLoadingOnRefresh = true,
- bool skipError = false,
- R? data(
- T data
- R? error(
- Object error,
- StackTrace stackTrace
- R? loading()?,
Perform actions conditionally based on the state of the AsyncValue.
Returns null if AsyncValue was in a state that was not handled.
This is similar to maybeWhen where orElse
returns null.
Implementation
R? whenOrNull<R>({
bool skipLoadingOnReload = false,
bool skipLoadingOnRefresh = true,
bool skipError = false,
R? Function(T data)? data,
R? Function(Object error, StackTrace stackTrace)? error,
R? Function()? loading,
}) {
return when(
skipError: skipError,
skipLoadingOnRefresh: skipLoadingOnRefresh,
skipLoadingOnReload: skipLoadingOnReload,
data: data ?? (_) => null,
error: error ?? (err, stack) => null,
loading: loading ?? () => null,
);
}