Simple util which helps to implement Yandex translation service with RxJava. Example of using:

Add to build.gradle file:

dependencies {
   compile 'io.reactivex:rxjava:1.1.6'
   compile 'io.reactivex:rxandroid:1.2.1'
   }

    String sourceText = "Годный переводчик";
    String sourceLang = "ru";
    String destinationLang = "en";
    String key = "your_key";
    YandexTranslation translation = new YandexTranslation();

    translation.setKey(key)
            .getTextObservable(sourceText, sourceLang, destinationLang)
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Observer<String>() {
                @Override
                public void onCompleted() {

                }

                @Override
                public void onError(Throwable e) {

                }

                @Override
                public void onNext(String text) {

                }
            });

       translation.setKey(key)
            .getTranslationObservable(sourceText, sourceLang, destinationLang)
            .subscribeOn(Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Observer<YandexTranslation.Translation>() {
                @Override
                public void onCompleted() {

                }

                @Override
                public void onError(Throwable e) {

                }

                @Override
                public void onNext(YandexTranslation.Translation t) {

                }
            });

 Translation translation = getTranslation(sourceText, sourceLang, destinationLang);
 
  if (YandexTranslation.Translation.hasTranslation(translation)){
      String text = translation.translations.get(0);
  }