bindAdapter

    private void bindAdapter() {
        final SectorFilterAdapter adapter = new SectorFilterAdapter(this, sectorList);
        listViewPositions.setAdapter(adapter);
        edtSearch.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) {
                adapter.getFilter().filter(s.toString());

            }

            @Override
            public void afterTextChanged(Editable s) {
            }
        });


    }

Filterable Adapter

public class PositionListActivity extends BaseActivity implements EditText.OnEditorActionListener {

    @BindView(R.id.toolbar_text)
    SecretTextView toolbarText;

    @BindView(R.id.listview_positions)
    ListView listViewPositions;

    @BindView(R.id.edt_search)
    SecretEditText edtSearch;

    private List<Pozisyonlar> positionList = new ArrayList<>();
    private List<Pozisyonlar> selectedPositionList = new ArrayList<>();


    @Override
    protected int getLayoutResId() {
        return R.layout.activity_position_list;
    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        toolbarText.setText(getString(R.string.positions).replace(":", ""));
        edtSearch.setOnEditorActionListener(this);


        positionList = Hawk.get(POSITION_OBJECT_LIST);
        ProgressDialogUtils.getInstance().dismiss();

        bindAdapter();

    }


    @OnClick(R.id.close_button)
    public void OnCloseClick() {
        if (getSelectedPos().size() > 5) {
            SnackbarUtils.getInstance().showError(getCurrentFocus().getRootView(), getString(R.string.max_selection));
        } else {
            hideKeyboard();
            finish();
        }
    }

    @Override
    public void onBackPressed() {
        if (getSelectedPos().size() > 5) {
            SnackbarUtils.getInstance().showError(getCurrentFocus().getRootView(), getString(R.string.max_selection));
        } else {
            hideKeyboard();
            finish();
        }
    }

    @Subscribe
    public void OnCheckEvent(CheckedEvent event) {
        if (event.isChecked()) {

            selectedPositionList.add(event.getPozisyon());
            Hawk.put(POSITION_SELECT_LIST, selectedPositionList);

        } else {
            selectedPositionList.remove(event.getPozisyon());
            Hawk.put(POSITION_SELECT_LIST, selectedPositionList);

        }


    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (getSelectedPos().size() > 5) {
            SnackbarUtils.getInstance().showError(getCurrentFocus().getRootView(), getString(R.string.max_selection));
        } else {
            EventBus.getDefault().post(new CheckedEvent());

        }

    }

    private ArrayList<Pozisyonlar> getSelectedPos() {
        ArrayList<Pozisyonlar> positionList = new ArrayList<>();

        if (Hawk.contains(POSITION_SELECT_LIST)) {
            positionList.addAll(Hawk.get(POSITION_SELECT_LIST, positionList));
        }

        return positionList;
    }


    private void bindAdapter() {
        final PositionFilterAdapter adapter = new PositionFilterAdapter(this, positionList);
        listViewPositions.setAdapter(adapter);
        edtSearch.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) {
                adapter.getFilter().filter(s.toString());

            }

            @Override
            public void afterTextChanged(Editable s) {
            }
        });


    }


    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_DONE) {
            hideKeyboard();

        }

        return false;
    }

    @Override
    public void onStart() {
        super.onStart();
        EventBus.getDefault().register(this);

    }

    @Override
    public void onStop() {
        super.onStop();
        EventBus.getDefault().unregister(this);
    }

}