java - 出错后重启 BehaviorSubject

Question

通缉行为:

subject = BehaviorSubject.create(1);
subject.subscribe(number -> print(number), error -> print(error));

subject.onNext(2);
subject.onNext(3);
subject.onError(new RuntimeException("I'm an error"));
subject.onNext(4);
subject.onNext(5);

有了这个输出:

1
2
3
I'm an error
4
5

我的问题是 onError 之后的 onNext 不工作(这是有意的，遵循 RxJava 规则)，但我会需要对错误有弹性，同时也将错误传递到流中(向用户显示一些反馈)。

有办法吗？

Answer 1

如果您希望忽略 onError 和 onComplete，可以使用 RxRelay图书馆。

描述:

Subjects are useful to bridge the gap between non-Rx APIs. However, they are stateful in a damaging way: when they receive an onComplete or onError they no longer become usable for moving data. This is the observable contract and sometimes it is the desired behavior. Most times it is not.

Relays are simply Subjects without the aforementioned property. They allow you to bridge non-Rx APIs into Rx easily, and without the worry of accidentally triggering a terminal state.