loadList method

void loadList()

Implementation

void loadList() async {
  setState(() {
    _isLoading = true;
  });
  if(picker.countries.isEmpty){
    await picker.loadCountries(filterCountries: widget.filteredCountries);
  }
  _list = picker.countries;
  setState(() {
    _filteredList = _list;
    _isLoading = false;
  });
}