Android + RxJava + For Loop + 不执行所有请求

Question

方法的调用者，

 for (String name : controllerToPartitionModels.keySet())
    {
        List<PartitionModel> partitionsList = controllerToPartitionModels.get(name);
        refreshPartition(partitionsList,false);
    }

方法

 private void refreshPartition(List<PartitionModel> partitionModels, boolean isSyncAll) {
    ITModule.getITService()
            .refreshPartitionStatus(new ArrayList<>(partitionModels), isSyncAll)
            .subscribeOn(Schedulers.io())
            .observeOn(Schedulers.io())
            .subscribe(new Action() {
                @Override
                public void run() throws Exception {
                    Logger.get().d(ATTActionManager.this, "Refreshing request sent successfully for list of size : " + partitionModels.size());
                }
            }, (@NonNull Throwable throwable) -> {
                Logger.get().d(ATTActionManager.this, "Error on Refresh request");
            });
}

问题如果必须发送 2 个请求，我有时会看到只发送了一个请求。意思是，即使 for 循环针对 2 个请求 (HTTP) 执行了两次，我也看到只有一个请求被发送到服务器。我在这里做错了什么？使用中的 Rxjava 版本：2.2.19

Answer 1

您可以合并以上2种方法使用flatMapIterable来解决您的问题。

合并解决方案：

private void refreshPartition(Map<String, ?> controllerToPartitionModels) {

    Observable.just(controllerToPartitionModels)
            .map(controllerToPartitionModels -> controllerToPartitionModels.keySet())
            .flatMapIterable((Function<Set<String>, Iterable<String>>) name -> name)
            .map(name -> {
                boolean isSyncAll = false; // You can customise as per requirement
                return new Pair<List<PartitionModel>, Boolean>(controllerToPartitionModels.get(name), isSyncAll)
            })
            .flatMap((Function<Pair<List<PartitionModel>, Boolean>, ObservableSource<?>>) pair -> {
                        boolean isSyncAll = pair.first;
                        List<PartitionModel> partitionModels = pair.second;
                        return ITModule.getITService()
                                .refreshPartitionStatus(new ArrayList<>(partitionModels), isSyncAll)
                    }
            )
            .subscribeOn(Schedulers.io())
            .observeOn(Schedulers.io())
            .subscribe(new Action() {
                @Override
                public void run() throws Exception {
                    Logger.get().d(ATTActionManager.this, "Refreshing request sent successfully for list of size : " + partitionModels.size());
                }
            }, (@NonNull Throwable throwable) -> {
                Logger.get().d(ATTActionManager.this, "Error on Refresh request");
            });

}

*请将 ? 替换为有效的对象类型。

Android + RxJava + For Loop + 不执行所有请求

Android + RxJava + For Loop + Not executing all the requests

java

android

performance

rx-java