Only reset search field when back key is hit if there is no query.

    @Override

    public boolean onBackKey() {

        // Only hide the search field if there is no query, or if there

        // are no filtered results

        // Only hide the search field if there is no query

        String query = Utilities.trim(mInput.getEditableText().toString());

        if (query.isEmpty() || mApps.hasNoFilteredResults()) {

        if (query.isEmpty()) {

            reset();

            return true;

        }