我是否必须取消订阅已完成的 observable? [英] Do I have to unsubscribe from completed observable?

问题描述

如果一个 observable 完成，我是否仍然需要取消订阅/处置(在 RxJava2 中)该 observable 以移除 Observer(防止内存泄漏)，或者在 onComplete 或 onComplete 或 onError 事件发生?

If an observable completes, do I still have to unsubscribe / dispose (in RxJava2) the observable to remove the Observer (prevent memory leaks) or is this handled internally by RxJava once a onComplete or onError event occurs?

Single、Completable、Flowable 等其他类型怎么样

what about other types like Single, Completable, Flowable etc.

推荐答案

是的，你是对的.

流终止后( onComplete/onError 已被调用)，订阅者自动取消订阅.您应该能够使用 Subscription 对象上的 isUn​​subscribed() 方法测试这些行为.

After a stream is terminated ( onComplete / onError has been called ), subscriber unsubscribes automatically. You should be able to test these behaviors using isUnsubscribed() method on the Subscription object.

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