RxJava返回单，执行完成后 [英] RxJava Return single, execute completable after

问题描述

我正在尝试完成以下任务:返回一些数据，然后执行一个可完成的操作.由于single.andThen()，以下代码无法编译.这些动作需要按此顺序执行.

I'm trying to accomplish the following: Return some data as single, execute a completable after. The following code does not compile due to single.andThen(). The actions need to be executed in this order.

val single = Single.create<String> { it.onSuccess("result") }
val completable = Completable.create { println("executing cleanup") }
val together = single.andThen(completable)

together.subscribe(
        { println(it) },
        { println(it) }

)

推荐答案

使用flatMap:

single.flatMap(v -> completable.andThen(Single.just(v)))

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