onErrorResumeSingle method
Intercepts error events and switches to a recovery Single created by the
provided fallbackSupplier
.
The onErrorResumeSingle operator intercepts an onError notification from
the source Stream. Instead of passing the error through to any
listeners, it replaces it with another Single created by the fallbackSupplier
.
The fallbackSupplier
receives the emitted error and returns a Single. You can
perform logic in the fallbackSupplier
to return different Singles based on the
type of error that was emitted.
If you do not need to perform logic based on the type of error that was emitted, please consider using onErrorResumeNextSingle or onErrorReturn.
Example
Single<int>.error(Exception())
.onErrorResumeSingle((e, st) => Single.value(e is StateError ? 1 : 0))
.listen(print); // prints 0
Implementation
Single<T> onErrorResumeSingle(
Single<T> Function(Object error, StackTrace stackTrace)
fallbackSupplier) =>
forwardSingleWithSink(
() => _OnErrorResumeSingleSingleSink(fallbackSupplier));