rxjava2 searchview

    SearchView searchView;

    CompositeDisposable compositeDisposable = new CompositeDisposable();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        searchView = (SearchView) findViewById(R.id.search_view);


        compositeDisposable.add(fromSearchView(searchView)
                .debounce(300, TimeUnit.MILLISECONDS)
                .filter(new Predicate<String>() {
                    @Override
                    public boolean test(String text) throws Exception {
                        if (text.isEmpty()) {
                            return false;
                        } else {
                            return true;
                        }
                    }
                })
                .distinctUntilChanged()
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Consumer<String>() {
                    @Override
                    public void accept(String s) throws Exception {
                        funToast(s);
                    }
                }));

    }

    public static Observable<String> fromSearchView(SearchView searchView) {

        final PublishSubject<String> subject = PublishSubject.create();

        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String s) {
                subject.onComplete();
                return true;
            }

            @Override
            public boolean onQueryTextChange(String text) {
                subject.onNext(text);
                return true;
            }
        });

        return subject;
    }