public class CurrencySelectorModel extends ViewModel {
public final MutableLiveData<List<Currency>> currencies;
private final MutableLiveData<Boolean> positionAndPaddingVisible = new MutableLiveData<>(true);
+ private OnCurrencySelectedListener selectionListener;
public CurrencySelectorModel() {
this.currencies = new MutableLiveData<>();
}
public void observePositionAndPaddingVisible(LifecycleOwner activity, Observer<Boolean> observer) {
positionAndPaddingVisible.observe(activity, observer);
}
+ void setOnCurrencySelectedListener(OnCurrencySelectedListener listener) {
+ selectionListener = listener;
+ }
+ void resetOnCurrencySelectedListener() {
+ selectionListener = null;
+ }
+ void triggerOnCurrencySelectedListener(Currency c) {
+ if (selectionListener != null)
+ selectionListener.onCurrencySelected(c);
+ }
}