Question

只是问我是否做对了，因为我不知道为什么doOnComplete尚未完成时为何doOnNext正在呼叫？

这就是为什么，我要问如何等待doOnNext中的所有任务致电doOnComplete之前是什么？

doOnNext内部的另一项任务是将数据插入数据库。

private val disposable = CompositeDisposable()

val branchUser : Observable<BranchUserResponse> = getApi().getBranchUser()
val areaUser : Observable<AreaUserResponse> = getApi().getAreaUser()
val regionalUser : Observable<RegionalUserResponse> = getApi().getRegionalUser()

disposable.add(
    Observable.merge(branchUser, areaUser, regionalUser)
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .doOnNext { it ->
            when (it) {
                is BranchUserResponse -> {
                    branchUserViewModel.addAll()
                        .subscribeOn(Schedulers.io())
                        .observeOn(AndroidSchedulers.mainThread())
                        .subscribe(
                            {
                                Log.i(TAG, "addAll success")
                                // the doOnComplete is already called before the Log here is call.
                                // Same with the other condition.
                                // What I want is to call this first before the doOnComplete or doFinally.
                            },
                            {
                                Log.e(TAG, "addAll failed", it)
                            }
                        )
                }
                is AreaUserResponse -> {
                    // some stuff here...
                }
                is RegionalUserResponse -> {
                    // some stuff here...
                }
            }
        }
        .doOnComplete {
            Log.i(TAG, "Complete")
        }
        .doFinally {
            Log.i(TAG, "Finally")
        }
        .subscribe()
)

感谢您的帮助，谢谢。

Answer 1

如果要在rx-stuff中指定的所有分支中执行doOnNext，则必须将doOnNext更改为flatMap：

private val disposable = CompositeDisposable()

val branchUser : Observable<BranchUserResponse> = getApi().getBranchUser()
val areaUser : Observable<AreaUserResponse> = getApi().getAreaUser()
val regionalUser : Observable<RegionalUserResponse> = getApi().getRegionalUser()

disposable.add(
    Observable.merge(branchUser, areaUser, regionalUser)
        .subscribeOn(Schedulers.io())
        .observeOn(AndroidSchedulers.mainThread())
        .flatMap { it ->
            when (it) {
                is BranchUserResponse -> {
                    branchUserViewModel.addAll()
                }
                is AreaUserResponse -> {
                    // some stuff here...
                }
                is RegionalUserResponse -> {
                    // some stuff here...
                }
            }
        }
        .doOnComplete {
            Log.i(TAG, "Complete")
        }
        .doFinally {
            Log.i(TAG, "Finally")
        }
        .subscribe()
)

如何在调用doOnComplete之前等待完成doOnNext中的所有任务？

1 个答案: