Spinner Observer

gistfile1.txt

private static Observable<Pair<Object, Integer>> observeSelect(Spinner spinner) {
        final PublishSubject<Pair<Object, Integer>> selectSubject = PublishSubject.create();
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                @SuppressWarnings("unchecked") Pair<Object, Integer> pair = new Pair<>(parent.getItemAtPosition(position), position);
                //Tuple tuple = new Tuple(parent.getItemAtPosition(position), position);
                selectSubject.onNext(pair);
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {
            }
        });
        return selectSubject;
    }