Setelah ambil data dari API

MainActivity.java

service.getRepos("showcheap")
                        .subscribeOn(Schedulers.newThread())
                        .observeOn(AndroidSchedulers.mainThread())
                        .subscribe(new Subscriber<List<GithubRepo>>() {
                            @Override
                            public void onCompleted() {

                            }

                            @Override
                            public void onError(Throwable e) {

                            }

                            @Override
                            public void onNext(List<GithubRepo> githubRepos) {
                                repoObservable = Observable.from(githubRepos);
                                Log.d("getRepos:onNext",githubRepos.toString());
                            }
                        });