LinearLayout ll = new LinearLayout(this);
    ll.setOrientation(LinearLayout.VERTICAL);
    EditText et = new EditText(this);
    ListView lv = new ListView(this);
    ll.addView(et);
    ll.addView(lv);
    setContentView(ll);

    // MatchableArrayAdapter: https://gist.github.com/pskink/2dd4d17a93caf02ff696533e82f952b0
    final MatchableArrayAdapter<Currency> adapter = new MatchableArrayAdapter<Currency>(this, android.R.layout.simple_list_item_2) {
        @Override
        protected void onBind(Currency item, View itemView, int position) {
            TextView text1 = (TextView) itemView.findViewById(android.R.id.text1);
            text1.setText(item.getDisplayName());
            TextView text2 = (TextView) itemView.findViewById(android.R.id.text2);
            text2.setText(item.getSymbol());
        }
        @Override
        protected boolean matches(Currency value, CharSequence prefix, CharSequence lowerCasePrefix) {
            return value.getDisplayName().toLowerCase().contains(lowerCasePrefix);
        }
    };
    for (Currency currency : Currency.getAvailableCurrencies()) {
        adapter.add(currency);
    }
    lv.setAdapter(adapter);
    et.addTextChangedListener(new TextWatcher() {
        @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
        @Override public void onTextChanged(CharSequence s, int start, int before, int count) {}
        @Override public void afterTextChanged(Editable s) {
            adapter.getFilter().filter(s);
        }
    });