Convert AsyncTask to RxAndroid

Question

I have the following method to post response to UI using otto and AsyncTask.

private static void onGetLatestStoryCollectionSuccess(final StoryColle         


        

Answer 1

In your case you can use fromCallable. Less code and automatic onError emissions.

Observable observable = Observable.fromCallable(new Callable() {
        @Override
        public File call() throws Exception {
            File file = downloadFile();
            return file;
        }
    });

Using lambdas:

Observable observable = Observable.fromCallable(() -> downloadFile());