SipnnerConfig

ArrayAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, categories);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        presenter.onItemSelected(adapter.getItem(position));
    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {

    }
});